Abstract

The invention relates to a method for producing a material panel having at least one layer which has at least a portion of natural fibres, wherein at least one of the at least one layer comprises a useful product which is produced from a raw material comprising natural fibres, wherein the method comprises at least the following steps: i) providing a system for producing a material panel, at least comprising: material preparation, gluing, shaping, pressing, finishing, iii) breaking down the raw material, under the action of a pressure shock wave having a pulse duration and a pulse frequency, into useful product having at least a first, oddly indexed component and a second, evenly indexed component using at least one device for breaking down the raw material under the action of a pressure shock wave having a pulse duration and a pulse frequency, iv) separating the first, oddly indexed component and the second, evenly indexed component on the basis of at least one parameter v) providing the (at least one) obtained oddly indexed component for use in at least one further process step of the method. In order to be able to produce material panels, inter alia, in an environmentally friendly and cost-effective manner, the invention proposes providing the following step: vi) breaking down at least one of the evenly indexed component under the action of a pressure shock wave having a pulse duration and a pulse frequency in such a way that at least one further oddly indexed component is produced.

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 1/00 - Pretreatment of moulding material
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity

Abstract

The invention relates to a material board (1) and to a method for the production thereof, the material board having a core layer (2) and at least a first cover layer (3) and optionally a second cover layer (4) on the side opposite from the first cover layer, each being composed of a mixture (7, 8, 9) which is composed of lignin-containing particles (5, 6) and a binder and which is formed into a solid body structure in a chemical and/or mechanical binding process, the lignin-containing particles (5) of the mixture of the core (7) being composed substantially of chip material and the lignin-containing particles (6) of the mixture of the at least one cover layer (3, 4) being composed of fiber material. The aim is to provide a material board which has a cover layer surface largely optically homogeneous in terms of color for simple decoration and which can nevertheless be produced with little production complexity. To achieve this aim, for the mixture of the core (7) the chip sizes decrease in chip size layers towards the at least one cover layer (3, 4), from a layer of coarse chips (2b) having the individual chip dimensions of length 50 to 200 mm, width 5 to 45 mm and thickness 0.4 to 2.5 mm, to a layer (2a, 2c) of fine chips having the individual chip dimensions of length 0.5 to 50 mm, width 0.5 to 15 mm and thickness 0.2 to 1.0 mm, wherein the intermediate spaces of the coarse chip layers (2b) can still contain up to 20% of the fine chips.

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/14 - Distributing or orienting the particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27M 3/00 - Manufacture or reconditioning of specific semi-finished or finished articles
• E04C 2/16 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the likeBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of plasticsBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of foamed products of fibres, chips, vegetable stems, or the like

Abstract

KKK) is reduced by at least 50 N/cm2, in particular by at least 100 N/cm2, preferably by at least 200 N/cm2.

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The invention relates to a method for producing a material panel, in particular a wooden material panel, from a material, comprising the following steps: a) providing at least one layer of a material, in particular a material which contains wood chips and/or wood fibres, b) providing a press (1, 1') comprising: - a top pressing device (1A, 1A1) and a bottom pressing device (IB, 1B1), between which a gap (5) is formed for receiving the material, - wherein the top pressing device (1A, 1A1) and/or the bottom pressing device (IB, 1B1) has hydraulic pressing cylinders (12) which can change the gap width (8) between the top pressing device (1A, 1A1) and the bottom pressing device (IB, 1B1) and can transfer pressing forces onto the material, and - wherein the top pressing device (1A, 1A1) and/or the bottom pressing device (1B, 1B') has a heating device, in particular a heating plate (14A, 14B), which can at least indirectly transfer heat to the material, c) pressing the material in the gap (5) between the top pressing device (1A, 1A1) and the bottom pressing device (IB, 1B1), d) heating the material in the gap (5) between the top pressing device (1A, 1A1) and the bottom pressing device (IB, 1B1), - wherein steps c) and d) take place at least partially simultaneously, characterised in that during step d) the temperature (T) in the material is increased to at least 130°C, in particular at least 150°C, preferably at least 180°C.

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The invention relates to a method for producing a material board, in particular a wood material board, from a material, the method comprising the following steps: a) providing at least one layer of a material, in particular a material containing wood chips and/or wood fibres, b) providing a press (1, 1') comprising: - an upper pressing device (1A, 1A') and a lower pressing device (1B, 1B') between which a gap (5) is formed for receiving the material, - wherein the upper pressing device (1A, 1A') and/or the lower pressing device (1B, 1B') has hydraulic pressing cylinders (12) which can vary the gap width (8) between the upper pressing device (1A, 1A') and the lower pressing device (1B, 1B') and can transmit pressing forces onto the material, and - wherein the upper pressing device (1A, 1A') and/or the lower pressing device (1B, 1B') has a heating device, in particular a heating plate (14A, 14B), which can at least indirectly transfer heat to the material, c) pressing the material in the gap (5) between the upper pressing device (1A, 1A') and the lower pressing device (1B, 1B'), d) heating the material in the gap (5) between the upper pressing device (1A, 1A') and the lower pressing device (1B, 1B'), - wherein steps c) and d) take place at least in part simultaneously, and wherein the contact pressure (PK) acting on the material during step c) is reduced to a contact pressure (PK) which is in the range of 10 N/cm2 to 150 N/cm2, in particular 30 N/cm2 to 100 N/cm2.

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The disclosure relates, inter alia, to a method that is carried out for example by at least one device or a system comprising at least two devices. The method comprises receiving information about at least one production factor relating to a production process for producing a sheet of building material. The method also comprises determining, based on the information about the at least one production factor and using an optimization function, at least one optimized first process parameter. The at least one optimized first process parameter is based on respective values for at least one first process parameter relating to the production process that optimize the optimization function, or corresponds to said values. Furthermore, each of the at least one first process parameter relating to the production process is related to at least one of the at least one production factor relating to the production process. The method also comprises determining, using a mathematical model, respective values for at least one second process parameter relating to the production process in such a way that, when the production process is carried out based on the at least one optimized first process parameter and on the values for the at least one second process parameter, at least one constraint related to the sheet of building material is satisfied. Furthermore, the method comprises providing the at least one optimized first process parameter and the values for the at least one second process parameter for use in the production process.

IPC Classes  ?

• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
• B27N 3/08 - Moulding or pressing
• G05B 19/408 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by data handling or data format, e.g. reading, buffering or conversion of data
• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• G06N 3/08 - Learning methods

Abstract

The invention relates, inter alia, to a method which is carried out for example by at least one device or a system comprising at least two devices. The method comprises obtaining information regarding at least one production factor of a production method for producing a building material board. The method furthermore comprises obtaining respective first values for at least one first process parameter of the production method, each of the at least one first process parameter being related to at least one of the at least one production factor of the production method. The method furthermore comprises determining respective second values for the at least one first process parameter, on the basis of the information regarding the at least one production factor of the production method and using an assessment function. In this case, a function value of the assessment function for the second values differs from a function value of the assessment function for the first values for the at least one first process parameter by more than a predefined amount. The method furthermore comprises determining, using a mathematical model, respective values for at least one second process parameter of the production method such that, when the production method is carried out on the basis of the second values for the at least one first process parameter and the values for the at least one second process parameter, at least one constraint related to the building material board is complied with. Furthermore, the method comprises providing the second values for the at least one first process parameter and the values for the at least one second process parameter for use in the production method. Provided for publication: FIG. 2

IPC Classes  ?

• B27N 3/08 - Moulding or pressing
• G05B 13/02 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric
• G05B 19/408 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by data handling or data format, e.g. reading, buffering or conversion of data
• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• G06N 3/08 - Learning methods

Abstract

The invention relates to a method for producing a material panel having at least one layer, wherein at least one of the at least one layer comprises a base material obtained from an annual or perennial plant, wherein the method comprises a material flow comprising the base material along at least the following process steps: material preparation, gluing, spreading, pressing, finishing and the material flow is composed of at least a first material flow section and a second material flow section following the first material flow section, and wherein each material flow section is characterised at least by the following parameters: density, moisture, wherein at least one of the parameters can be influenced within the process steps. According to the invention, the moisture content of the material flow section passing through process step B, i.e. during gluing, is increased by at least 4 % ATRO, preferably by at least 6.5 %, particularly preferably by at least 8 %, very particularly preferably by at least 11.5 %. The invention also relates to a device for producing a material panel having at least one layer, and a material panel.

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity
• B27N 1/02 - Mixing the material with binding agent
• B27N 3/14 - Distributing or orienting the particles or fibres

Abstract

The invention relates to a method for producing a material panel having at least one layer, wherein at least one of the at least one layer comprises a base material obtained from an annual or perennial plant, wherein the method comprises a material flow comprising the base material along at least the following process steps: material preparation, gluing, spreading, pressing, finishing and the material flow is composed of at least a first material flow section and a second material flow section following the first material flow section, and wherein each material flow section is characterized at least by the following parameters: density, moisture, wherein at least one of the parameters can be influenced within the process steps. According to the invention, the moisture content of the material flow section passing through process step B, i.e. during gluing, is increased by at least 4 % ATRO. The invention also relates to a device for producing a material panel having at least one layer, and a material panel.

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity
• B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 1/02 - Mixing the material with binding agent
• B27N 3/14 - Distributing or orienting the particles or fibres

Abstract

The invention relates to a device for producing moulded parts (1), in particular from fibre-composite material. According to the invention, in order to provide uniform application of pressure and/or temperature even in moulded parts having more complex geometry, the second compressing portion (P2, P2') is at least partially spaced apart from the first compressing portion (2) in the direction of the movement axis (B), and at least one bent region of the mould of the second compressing portion (P2, P2'), in particular along the longitudinal extent and/or the transverse extent of the corresponding compression mould (2, 3), is designed to at least partially differ from at least one bent region of the mould of the first compressing portion (P1, P1'), preferably to differ from the bent region of the mould of the edge region, adjoining the second compressing portion (P2, P2'), of the first compressing portion (P1, P1'). The invention also relates to a method for producing moulded parts, in particular from fibre-composite material, comprising, inter alia, a corresponding device for producing moulded parts (1), in particular from fibre-composite material.

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure

Abstract

Shown and described is an apparatus for producing moulded parts (1), in particular made of fibre composite material, and comprising: a first compression mould (2), a second compression mould (3) and at least one membrane (4, 4') for contacting a workpiece (18), wherein: the first compression mould (2) and the second compression mould (3) are movable in relation to one another between an open position and a closed position; at least in the closed position, a cavity (5) for a working medium is formed between the membrane (4, 4') and the first compression mould (2) and/or the second compression mould (3); a working space (8) for receiving the workpiece (18) is formed between the first compression mould (2) and the second compression mould (3), in particular between the membrane (4, 4') and the first compression mould (2) and/or the second compression mould (3); and the membrane (4, 4') has a membrane thickness, a longitudinal extent and a transverse extent. In order to provide an apparatus which makes it possible for pressure and/or temperature to be applied uniformly to moulded parts with quite a complex geometry and also less complex geometry, it is proposed that the membrane (4, 4') has, in particular along the longitudinal extent and/or the transverse extent of the membrane (4, 4'), at least one elastically deformable main portion (G, G') for contacting the workpiece (18), and at least one plastically pre-deformed moulding portion (F) for contacting the workpiece (18).

IPC Classes  ?

• B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding

Abstract

The invention relates to a method for producing particles for the manufacture of material boards, wherein the particles are fibres or contain fibres, and wherein the particles are created from vegetable starting products in a treatment process which comprises at least a thermal process step for breaking down the starting products. A material mixture of at least two different plant types is used as starting products, and the different starting products of the material mixture are broken down in a common treatment process which comprises at least the thermal process step, wherein the starting products of the different plant types are selected and/or are pretreated such that in the common treatment process, particles with homogeneous properties are created.

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B27L 11/00 - Manufacture of wood shavings, chips, powder, or the likeTools therefor
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27L 11/08 - Manufacture of wood shavings, chips, powder, or the likeTools therefor of wood fibres, e.g. produced by tearing
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres

Abstract

The invention discloses, inter alia, a method comprising keeping ready a mathematical model for use during production of at least one construction panel, wherein the mathematical model is based on a number of training data records that corresponds to a minimum number or is greater than this minimum number; wherein a training data record comprises, for a construction panel type, quality parameter data that represent at least one value for at least one corresponding quality feature of a construction panel sample of the construction panel type, and process parameter data that represent values for a plurality of process parameters of a production method for producing the construction panel sample; wherein the number of training data records comprises at least one training data record for a construction panel type of the at least one construction panel, wherein the method further comprises obtaining prediction data based on the mathematical model, wherein the prediction data represent a prediction of at least one quality parameter for the at least one construction panel; and outputting the prediction data.

IPC Classes  ?

• G05B 13/04 - Adaptive control systems, i.e. systems automatically adjusting themselves to have a performance which is optimum according to some preassigned criterion electric involving the use of models or simulators
• G05B 19/418 - Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]

Abstract

The invention relates to a storage device for material boards (2), having a rail-bound main track (6) and at least one main vehicle (4), which can travel on the main track, and also a plurality of transfer paths (7) that lead to board deposit points (9), and at least one satellite vehicle (5), which can travel on the transfer paths and is able to move at least one material board (2), wherein a holding area (8) is provided on the main vehicle (4) for at least one satellite vehicle (5), wherein the main vehicle (4) has an electrical power supply, for example via a sliding contact, and a drive means comprising a main vehicle electric motor (12), and wherein the satellite vehicle (5) likewise has a drive means comprising a satellite vehicle electric motor (22). In order to make the main vehicle and the satellite vehicle more independent of one another, provision is made for the satellite vehicle electric motor (22) of the satellite vehicle (5) to be able to be supplied with power via an energy store (20) connected to the satellite vehicle (5) and for the energy store (20) to be able to be charged by means of a charging station (17) on the main vehicle (4).

IPC Classes  ?

• B65G 1/04 - Storage devices mechanical
• B65G 1/06 - Storage devices mechanical with means for presenting articles for removal at predetermined position or level

Abstract

The invention relates to a grinding tool (11) for a refiner (1) for pulping lignocellulose-containing feedstock in cooperation with other grinding tools (13), which lie opposite the grinding tools (11), forming a grinding gap (12). The outline of the grinding tool (11) corresponds to the shape of a circular ring or a circular ring segment with an inner edge (28) and outer edge (29) relative to the centre of the circular ring or circular ring segment. The grinding tool (11) also has a plate-shaped base body (32), the rear side (33) of which is intended to be attached to the refiner (1), and on the front side (34) of which grinding elements in the form of webs (36', 36'' 36''') are arranged, which form a grinding-active upper side (35). In order to be able to produce high-quality fibres from feedstock of different origins, it is proposed according to the invention that the front side of the grinding tool (11) is divided, from radially inwards to radially outwards, into a combined breaking-up and conveying area (39) and a grinding area (40), wherein the grinding area (40) extends over at least 70% of the front side of the grinding tool (11). The invention further comprises a refiner (1) which is equipped with such a grinding tool (11).

IPC Classes  ?

• D21D 1/30 - Disc mills

Abstract

The invention relates to an apparatus and a method for producing insulation panels or sound protection panels from a pressed stock mat (2) consisting at least partially of lignocellulosic particles wetted with binding agents, wherein the apparatus has an inlet zone (Z1) between two revolving screening belts (5a, 5b), the distance between which becomes smaller in the pressed stock mat running direction, and a calibration zone (Z2) for heating and curing the pressed stock mat (2) with the aid of at least two opposite calibration plates (3a, 3b; 3c, 3d; 3e, 3f), i.e. at least one pair of calibration plates (7a, 7b), wherein revolving screening belts (5a, 5b) driven in the calibration zone (Z2) are movable in the pressed stock mat running direction through a calibration gap (20) between the at least two calibration plates (3a, 3b; 3c, 3d; 3e, 3f) in contact with the upper and the lower pressed stock mat surface. In order to keep the peak loadings on the screening belts as low as possible, it is provided that the at least two calibration plates (3a, 3b; 3c, 3d; 3e, 3f) are not parallel to one another at least in an entry region (E) to the calibration zone (Z2).

IPC Classes  ?

• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B30B 15/34 - Heating or cooling presses or parts thereof
• B27N 1/02 - Mixing the material with binding agent
• B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off

Abstract

The invention relates to a method for producing a material panel (10), having at least one layer (15, 16, 17) with at least one natural fibre component (F), the layer (15, 16, 17) comprising a useful product (11) which is produced from a raw material (14) obtained from a preformed material panel (10´). The method has at least one forming process part (BP) and an auxiliary process part (UP) and comprises the following steps: i) mechanically contacting pre-comminution of the preformed material panel (10´) into raw material (14), ii) breaking the raw material down, under the action of a pressure shock wave (W) having a pulse duration (ID) and a pulse frequency (IF), into a first component (K1) and a second component (K2), iii) separating the second component (K2) from the first component (K1), and iv) proportionately feeding the component (K1, K2) that is suitable for the forming process part (BP) for the material panel (10), into the forming process part (BP) of the further production process.

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 1/00 - Pretreatment of moulding material
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity

Abstract

The invention relates to a press (1) for machining a workpiece (2), comprising a press tool (3) and another press tool (4) which is arranged in a corresponding manner relative to the press tool (3). At least one of the two press tools (3, 4) can be moved in order to machine the workpiece (2), which can be placed between the press tools (3, 4). The press also comprises a separating membrane (7) which is arranged on one of the two press tools (3, 4) so as to circumferentially seal the edge region of the separating membrane and so as to face the workpiece (2) and which forms a cavity (8) together with the press tool (3) provided with the separating membrane (7), said cavity being pressure-tightly closed and being filled with a working medium.

IPC Classes  ?

• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure

Abstract

The invention relates to a cast iron material. The invention further relates to a use of a cast iron material and finally to a method for producing and/or lining a mould. The object of the invention is to develop a cast iron material for the production and/or lining of a mould, a pressing tool or a press, which material has a change in length at temperatures of -60°C to 440°C, more particularly in the temperature range from 0°C to 420°C, which change in length is as small as possible or as similar as possible to that of carbon fibre reinforced polymer or glass-fibre reinforced plastic. To this end a cast iron material is proposed comprising at least the following proportions in percent by weight as elements or as compounds of: carbon in the range from approximately 1.5% to 4.0%, silicon in the range from approximately 1.0% to 5.0%, manganese in the range from approximately 0.1% to 1.5%, nickel in the range from approximately 36.5% to 48.0%, chrome in the range from approximately 0.01 to 0.25%, phosphorus to approximately 0.08%, copper to approximately 0.5%, magnesium to approximately 0.150%, the remainder being iron and unavoidable impurities.

IPC Classes  ?

• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• B29C 43/52 - Heating or cooling
• C22C 37/04 - Cast-iron alloys containing spheroidal graphite
• C22C 37/08 - Cast-iron alloys containing chromium with nickel
• C22C 37/10 - Cast-iron alloys containing aluminium or silicon
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
• C22C 38/34 - Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of silicon
• C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
• C22C 38/50 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
• C22C 38/52 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
• C22C 38/56 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.7% by weight of carbon

Abstract

The invention relates to a press (1) for machining a workpiece (2), comprising a press tool (3) and another press tool (4) which is arranged in a corresponding manner relative to the press tool (3). At least one of the two press tools (3, 4) can be moved in order to machine the workpiece (2), which can be placed between the press tools (3, 4). The press also comprises a separating membrane (7) which is arranged on one of the two press tools (3, 4) so as to face the workpiece (2) and which forms a cavity (8) together with the press tool (3) provided with the separating membrane (7), said cavity (8) being filled with a working medium, wherein the press tool (3) provided with the separating membrane (7) is equipped with a plurality of channels (21), which face the cavity (8), extend along the workpiece (2), and open into the cavity (8) and through which the working medium can flow.

IPC Classes  ?

• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure

Abstract

The invention relates to a pressing system (100), comprising: - a press (1,1´) having a first pressing tool (2) and a second pressing tool (3), the first pressing tool (2) and the second pressing tool (3) being movable relative to one another to form a working space (8), - a workpiece (19), - a pressure generating device (22) for generating a pressure curve acting on the workpiece (19) in the working space (8), - a temperature generating device (23) for generating a temperature curve acting on the workpiece (19) in the working space (8) - the workpiece (19) running through an elongation curve (DVW) depending on the pressure curve acting in the working space (8) and on the temperature curve acting in the working space (8) - the first pressing tool (2) and the second pressing tool (3) running through a respective elongation curve (DVP1, DVP2) depending on the pressure curve acting in the working space and on the temperature curve acting in the working space, characterised in that the first pressing tool (2) and/or the second pressing tool (3) are designed such that their elongation curve (DVP1, DVP2) deviates by no more than 3.5% from the elongation curve (DVW) of the workpiece (19) during at least 97.5% of the elongation curve. The invention further relates to a pressing tool and to a method for producing a workpiece.

IPC Classes  ?

• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure

Abstract

A method for production of molded parts, in particular parts consisting of a fiber composite material, is illustrated and described. In order to reduce the load on the membrane, the membrane (4, 4A', 4B') according to the invention can be slipped past the seal (16, 16') and in step c) the membrane (4, 4A', 4B') can at least in part be slipped past the seal (16, 16') as a result of the expansion force (FA).

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 43/12 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material

Abstract

The invention relates to a system and a method for obtaining fibres (40) from feedstock (20) containing lignocellulose, more particularly from straw, having: a digester (5) for pretreating the feedstock (20) under the effect of heat, pressure and moisture; a refiner (7) for fiberising the pretreated feedstock (20) by means of two refiner tools (9, 10) which rotate coaxially in the refiner housing relative to one another and form a grinding gap (11); and a conveying device (6) for conveying the pretreated feedstock (20) from the digester (5) to the refiner (7). The conveying device (6) comprises a screw conveyor (14) having a screw trough (23) and an endless screw (48), circulating therein, with at least one screw flight (29), which opens axially into the refiner (7) via an inlet opening (26) in the refiner housing. To counteract material particles being released from the remaining feedstock, the invention proposes that the endless screw (48) of the screw conveyor (14) is driven at a rotational speed of at least 400 rpm, preferably 500 rpm or more. In this way, the feedstock (29) can be fed to the refiner as a uniform material stream.

IPC Classes  ?

• D21B 1/12 - Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods by the use of steam
• D21D 1/30 - Disc mills
• D21C 1/02 - Pretreatment of the finely-divided materials before digesting with water or steam
• D21B 1/22 - Disintegrating in mills in magazine-type machines with screw feed

Abstract

The invention relates to an apparatus for conveying and metering pourable feed material, comprising a first conveyor roller (9) driven about a first axis of rotation (8) and a second conveyor roller (11) driven in the opposite direction about a second axis of rotation (10), which rollers are positioned adjacent to one another in an axially parallel position inside a housing (4) while maintaining a conveying and metering gap (16). The two conveyor rollers (9, 11) have conveying elements (26, 28) over the roller circumference thereof which draw the feed material (34) delivered via a material inlet of the apparatus (1) into the conveying and metering gap (16) and guide it as a continuous material stream in the direction of a material output. In order to be able to convey feed material of various types and conditions in a controlled and exactly metered manner, according to the invention a flow resistance element (17) extending over the axial length of the conveyor rollers (9, 11) is located in the conveying and metering gap (16) and interacts with the conveyor rollers (9, 11) for conveying and metering the feed material (34). For this purpose, a distance is maintained in each case between the flow resistance element (17) and the first conveyor roller (9) and between the flow resistance element (17) and the second conveyor roller (11), and the feed material passes through the conveying and metering gap (16) between the flow resistance element (17) and the two conveyor rollers (9, 11).

IPC Classes  ?

• B65G 53/46 - Gates or sluices, e.g. rotary wheels

Abstract

The invention relates to a method by means of which at least one circulating steel band (5a, 5b) in a continuous press (1) for boards of material, in particular boards of wood-based material, is monitored for material deposits, wherein the steel band (5a, 5b) at a preselected band speed is used to exert pressure on a pressing mat for creating the board of material, and wherein the circulating steel band (5a, 5b) is monitored for material deposits by at least one optoelectronic detector (2), at least on one side of the steel band (5a, 5b), by a light transmitter (14) transmitting a light pattern (16) onto the steel band (5a, 5b) and a light receiver (15) using the reflection method to pick up the light pattern (16) and report it to an evaluation unit (3), which detects changes. To keep down the maintenance effort involved in finding a harmful material deposit, it is proposed that material deposits detected on the steel band (5a, 5b) after the beginning of the detector measurement (27) are reported to the evaluation unit (3) with absolute or relative time or mutual spacing distance values.

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The invention relates to a process for manufacturing a particle board from chips having a length of 1 to 60 mm, said process involving the following steps: a) crushing wood to obtain fine material, useful material and coarse material, the useful material containing at least the bulk of the chips; b) separating the fine material, useful material and coarse material into fractions according to size; c) drying at least the useful material; d) applying glue to at least some of the useful material; e) spreading at least the useful material to form a mat of spread material; and f) pressing the mat to obtain a particle board. In order to save resources and bring down the cost of the manufacturing process for particle boards having the same or even higher quality, according to the invention, the wood used also includes small-sized wood having diameters of less than 0.08 m, and at least one bladed roller chipper is used for the crushing step.

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B27N 1/02 - Mixing the material with binding agent
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/14 - Distributing or orienting the particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B07B 1/18 - Drum screens
• B07B 1/52 - Cleaning with brushes or scrapers
• B07B 4/00 - Separating solids from solids by subjecting their mixture to gas currents
• B27G 13/02 - Cutter blocksOther rotary cutting tools specially adapted for working wood or similar materials in the shape of long arbors, i.e. cylinder cutting blocks
• B27L 11/00 - Manufacture of wood shavings, chips, powder, or the likeTools therefor

Abstract

The invention relates to a method for producing a material board with at least one layer. At least one of the at least one layers comprises a useful material which is made of a raw material harvested from a perennial plant. The method has at least the following steps: a) comminuting the raw material into a fine material, a useful material, and a coarse material, b) drying at least the useful material, c) fractionating the fine material, useful material, and coarse material according to size, d) gluing at least a proportion of the useful material, e) scattering the useful material in order to form a mat, and f) compressing the mat in order to form a material board with at least one layer. The invention is to provide an alternative possibility for an inexpensive production of a material board from annual plants using perennial plants. Additionally, the raw material contains at least a proportion of small-dimensioned wood with diameters of less than 0.08 m, and at least one knife shaft chipping device is used to comminute at least said proportion. The invention additionally relates to a device for producing a material board with at least one layer and to a material board.

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B07B 1/18 - Drum screens
• B07B 1/52 - Cleaning with brushes or scrapers
• B07B 4/00 - Separating solids from solids by subjecting their mixture to gas currents
• B08B 1/00 - Cleaning by methods involving the use of tools
• B27G 13/02 - Cutter blocksOther rotary cutting tools specially adapted for working wood or similar materials in the shape of long arbors, i.e. cylinder cutting blocks
• B27L 11/00 - Manufacture of wood shavings, chips, powder, or the likeTools therefor
• B27N 1/02 - Mixing the material with binding agent
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/14 - Distributing or orienting the particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off

Abstract

The invention relates to a process for manufacturing an OSB or wafer board from chips having a length of 1 to 60 mm, said process involving the following steps: a) crushing wood to obtain fine material (12), useful material (11) and coarse material (13), the useful material containing at least the bulk of the chips; b) separating the fine material, useful material and coarse material into fractions according to size; c) drying at least the useful material; d) applying glue to at least some of the useful material; e) spreading at least the useful material to form a mat (9) of spread material; and f) pressing the mat to obtain an OSB or wafer board. In order to save resources and bring down the cost of the manufacturing process for OSB or wafer boards having the same or even higher quality, according to the invention, the wood used also includes small-sized wood having diameters of less than 0.08 m, and at least one bladed roller chipper is used for the crushing step.

IPC Classes  ?

• B07B 1/52 - Cleaning with brushes or scrapers
• B27N 1/00 - Pretreatment of moulding material
• B27N 1/02 - Mixing the material with binding agent
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/14 - Distributing or orienting the particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27G 13/02 - Cutter blocksOther rotary cutting tools specially adapted for working wood or similar materials in the shape of long arbors, i.e. cylinder cutting blocks
• B27L 11/00 - Manufacture of wood shavings, chips, powder, or the likeTools therefor

Abstract

The invention relates to a device (1) for producing a web material, more particularly a web material containing plant fibers, the device comprising a first press belt and a second press belt, which press belts can circulate. Each of said press belt is disposed around at least two circulation cylinders, at least one of which can be driven at least indirectly by means of a controller (9). The device has a lubricant-dispensing apparatus (10), which is suitable for at least indirectly forming a lubricating film (11) having a lubricating-film thickness on the inner surface of the first and second press belts. The device has at least one sensor (14, 15), which is suitable for determining a lubricating-film thickness of the lubricating film. High-quality belt lubrication should be provided, more particularly also over a long period of time, with at least largely constant lubrication properties, for the operation of a device for producing a web material, more particularly a web material containing plant fibers, which belt lubrication is to be economically maintained during the operation of the device. For this purpose, it is proposed that the controller (9) is suitable for calculating an average lubricating-film thickness from at least two results of the sensor (14, 15) which are obtained with a temporal offset and to determine a lubrication volume in accordance with said average lubricating-film thickness, and that the controller is designed such that the lubricant-dispensing apparatus (10) outputs a certain proportion of the determined lubricant volume, more particularly between 5% and 350% of the determined lubricant volume, within a designated period of time, more particularly within a time interval, for example 24 hours. The invention also relates to a method for producing a web material, more particularly a web material containing plant fibers.

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to a device for comminuting pourable feedstock and a method for opening such an apparatus. The apparatus has a housing (3) which encloses a comminution chamber (40) and in which a rotor (7) rotating about a rotation axis (6) is arranged, which rotor has rotor tools (10) over the circumference thereof. A sieve holder (2), the sieve (14) of which extends along a circumferential portion of the rotor (7), is used to separate the sufficiently comminuted material. The feedstock supplied to the rotor (7) via a material infeed (13) is removed from the apparatus via a material discharge after sufficient comminution. In order to improve accessibility to the interior of the apparatus, according to the invention the sieve holder (2), in order to open the housing (3), is pivotable about a first pivot axis (25) from a closed first position to an open second position and in addition about a second pivot axis (26) to an open third position.

IPC Classes  ?

• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B02C 18/16 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives Details
• B02C 18/18 - KnivesMountings thereof
• B02C 23/16 - Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material

Abstract

w1w1112211w1w1w1'), and therefore the workpiece (17, 17') is already compressed at step d) and before step e).

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding

Abstract

Disclosed are a method and a device for producing a structural component, in particular for an aircraft, ground vehicle, or watercraft, or for a rotor blade of a wind turbine, in which method an arrangement (10) consisting of fibres and a plastics material is laid in a mould (1) and subjected to an increased pressure and an increased temperature, wherein a mould (1) is used that has at least one cavity (7) provided with a reinforcement element (11). The aim of the invention is to have a certain degree of freedom in the choice of a reinforcement element. To achieve this, the reinforcement element (11) is pre-stressed in the cavity (7) before or while being subjected to an increased pressure and an increased temperature.

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B21D 26/031 - Mould construction
• B29C 33/04 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
• B29C 33/12 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
• B30B 1/00 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• B29C 33/30 - Mounting, exchanging or centering

Abstract

The invention relates to a method for producing a component (1) from a fibre composite material, comprising the following steps: introducing a fibre (1) impregnated with a matrix into an inner mould (7) of a space formed between the inner mould (7) and an outer mould (8), introducing a separating membrane (14a) into the outer mould (8) in such a way that a cavity (15) extending along the surface (14) of the outer mould (8) is formed between the outer mould (8) and the separating membrane (14a), and subjecting the cavity (15) to a thermal oil (17) at a temperature higher than the melting point of the matrix and at a pressure greater than ambient pressure in such a way that the thermal oil (17) acts with the pressure on the separating membrane (14a). The separating membrane (14a) and the outer mould (8) are designed to establish a magnetic interaction by means of which the separating membrane (14a) can be fixed to the outer mould (8).

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs

Abstract

D1D2D1D2D2'); b) providing at least one workpiece (19), wherein the workpiece (19) comprises a matrix and fibres embedded therein; c) inserting the workpiece (19) into the press (1, 1'); d) closing the press (1, 1'); e) subjecting the workpiece (19) to pressure and/or to heat by means of the diaphragm (4), wherein a cured shaped part is formed from the workpiece (19); and f) opening the press (1, 1') and removing the shaped part. In order to ensure as smooth as possible a surface of the diaphragm (4), it is proposed that the diaphragm (4) is already pretensioned before step e). Also presented and described is a press (1, 1') for carrying out this method.

IPC Classes  ?

• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding

Abstract

Disclosed are a method and a device for producing a structural part, in particular for a ground vehicle, watercraft, or aircraft, or for a rotor blade of a wind turbine, in which method an arrangement (2) consisting of fibres and a plastics material is laid in a mould (1) and subjected to an increased pressure and an increased temperature (3), wherein a mould (1) is used that has at least one cavity (8) provided with a reinforcement element (4). The aim of the invention is to have a degree of freedom in the choice of a reinforcement element. To achieve this, the reinforcement element (4) is positioned together with a core (11) in the cavity (8).

IPC Classes  ?

• B29C 70/88 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised primarily by possessing specific properties, e.g. electrically conductive or locally reinforced
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B64D 45/02 - Lightning protectorsStatic dischargers
• B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
• B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof

Abstract

Disclosed are a method and a device for producing a structural part, in particular for a ground vehicle, watercraft, or aircraft, or for a rotor blade of a wind turbine, in which method an arrangement (2) consisting of fibres and a plastics material is laid in a mould (1) and subjected to an increased pressure and an increased temperature (3), wherein a mould (1) is used that has at least one cavity (8) provided with a reinforcement element (4). The aim of the invention is to have a degree of freedom in the choice of a reinforcement element. To achieve this, the reinforcement element (4) is placed together with a core (11) in the cavity (8).

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29D 99/00 - Subject matter not provided for in other groups of this subclass
• B29C 33/50 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling elastic
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles

Abstract

Disclosed is a method for producing a structural component (2), in particular for an aircraft, ground vehicle, or watercraft, or for a rotor blade of a wind turbine, in which method an arrangement (6) consisting of fibres and a plastics material is laid in a mould (1) and subjected to an increased pressure and an increased temperature, wherein a mould (1) is used that has at least one cavity (5) provided with a reinforcement element. The aim of the invention is to produce a structural component of this type cost-effectively. To achieve this, the reinforcement element (7) is laid together with a core (11) in the cavity (5), and the difference in volume between cavity the cavity (5) and the core (11), at least in a predefined region, is selected to be smaller by a predefined measurement than a section of the reinforcement element (7) provided in this region.

IPC Classes  ?

• B29C 43/32 - Component parts, details or accessoriesAuxiliary operations
• B29C 43/18 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 70/68 - Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers
• B29C 70/08 - Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, with or without non-reinforced layers
• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B32B 5/24 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by the presence of two or more layers which comprise fibres, filaments, granules, or powder, or are foamed or specifically porous one layer being a fibrous or filamentary layer
• B64C 1/06 - FramesStringersLongerons
• B64F 5/10 - Manufacturing or assembling aircraft, e.g. jigs therefor
• B29C 33/00 - Moulds or coresDetails thereof or accessories therefor
• B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof
• B29L 31/08 - Blades for rotors, stators, fans, turbines or the like, e.g. screw propellers
• B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
• B29K 77/00 - Use of polyamides, e.g. polyesteramides, as moulding material
• B29K 105/08 - Condition, form or state of moulded material containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
• B29K 101/12 - Thermoplastic materials
• B29C 70/86 - Incorporating in coherent impregnated reinforcing layers
• B29D 99/00 - Subject matter not provided for in other groups of this subclass

Abstract

The invention relates to a method and a device for producing a component from a fiber composite material (2), comprising the steps of: • introducing a plurality of layers (10, 11) of fibers impregnated with a matrix on an inner mould (3) within a mould space (9) formed between the inner mould (3) and an outer mold (4), • placing a membrane (6) sealed against the outer mould on the fibers impregnated with the matrix in such a way that a cavity (7) forms between the outer mould (4) and the membrane (6), which cavity extends along the lateral surface of the outer mould, and • subjecting the cavity (7) to a temperature-controllable pressure fluid at a temperature greater than the melting point of the matrix and at a pressure greater than the ambient pressure such that the temperature-controllable pressure fluid acts with the pressure onto the membrane. In order to produce a component having at least one reinforcing layer, which has a particularly smooth, stepless surface, it is proposed that at least one reinforcing layer (11), which has a smaller extension and fibers aligned predominantly in a parallel manner, is placed locally on a part of the side of a base layer (10) facing the outer mould (4). Subsequently, a membrane (6) having an average roughness depth of less than 1.0 μm, preferably less than 0.1 μm, exerts a set pressure on the component (2) in the cavity.

IPC Classes  ?

• B29C 33/04 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B30B 1/00 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
• B21D 26/031 - Mould construction
• B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam

Abstract

The invention relates to a material board (1) which comprises a core (2) and a first cover layer (3) and a second cover layer (4), each of which is formed by a mixture (7, 8) formed by lignin-containing particles (5, 6) and binder, which mixture is designed to form a solid body structure in a chemical binding process. The aim is to provide a material panel, which, for ecological and economical reasons, comprises a high proportion of particles based on annual plants and still exhibits good mechanical properties. Another object of the invention can be considered that of ensuring that the system load is kept relatively low during the production process. Another object can be considered that of keeping the proportion of stock removal low. According to the invention, at least 70%, preferably at least 80%, most preferably at least 90% of the particles (5) associated with the mixture (7) of the core (2) are obtained from annual plants, and at least 70%, preferably at least 80%, most preferably at least 90% of the particles (6) associated with the mixtures (8) of the two cover layers (3, 4) are obtained from perennial plants. The invention further relates to the use of a material board and to a method for producing a material board. Finally, the invention relates to a system for producing a material board.

IPC Classes  ?

• B32B 21/02 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board in the form of fibres, chips, or particles
• B32B 21/04 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, next to another layer of a specific substance
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/14 - Distributing or orienting the particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/28 - Moulding or pressing characterised by using extrusion presses
• B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity
• E04C 2/16 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the likeBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of plasticsBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of foamed products of fibres, chips, vegetable stems, or the like
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres

Abstract

The invention relates to a material board, in particular an engineered wood board (1) comprising at least one core layer (2) made of strands (3), and outer layers (4, 5) made of chips (6), characterised in that one or both of the outer layers (4, 5) is/are designed as partial-coverage outer layers such that individual strands (3) extend at least partly through the outer layer (4, 5) up to the board surface, thereby forming interruptions in the outer layer (4, 5).

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/14 - Distributing or orienting the particles or fibres

Abstract

The invention relates to a method for producing a material board, in particular an engineered wood board (1), which has at least one core layer (2) made of strands (3) or chips, and outer layers (4, 5) made of chips (6), and produced is a multi-layer pressed material mat (1') comprising at least one pressed material core layer (2') made of strands (3) or chips, and a lower and an upper pressed material outer layer (4', 5') made of chips (6), said multi-layer pressed material mat (1') being pressed, thereby forming the engineered wood board (1) comprising the core layer (2) and the outer layers (4, 5). The method is characterised in that the pressed material core layer (2') is produced by dispersion from dispersible strands (3) or chips, and that each pressed material outer layer (4', 5') is produced from a fluid chip-liquid mixture (9).

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/14 - Distributing or orienting the particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/28 - Moulding or pressing characterised by using extrusion presses
• B27N 7/00 - After-treatment, e.g. reducing swelling or shrinkage, surfacingProtecting the edges of boards against access of humidity
• B32B 15/02 - Layered products essentially comprising metal in a form other than a sheet, e.g. wire, particles
• B32B 19/00 - Layered products essentially comprising natural mineral fibres or particles, e.g. asbestos, mica
• B32B 21/02 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board in the form of fibres, chips, or particles
• B32B 21/04 - Layered products essentially comprising wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, next to another layer of a specific substance
• E04C 1/00 - Building elements of block or other shape for the construction of parts of buildings
• E04C 2/16 - Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the likeBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of plasticsBuilding elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of foamed products of fibres, chips, vegetable stems, or the like
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres

Abstract

The invention relates to a method for pre-heating a pressed material mat (2) before feeding same into a press (4), in particular in the course of producing wood material boards. The pressed material mat (2) runs through a double-belt pre-heating device (3) with an upper continuously circulating gas-permeable transport belt (5a) and a lower continuously circulating gas-permeable transport belt (5b), wherein the pressed material mat (2) is supplied with steam or a steam-air mixture in the double-belt pre-heating device (3) by means of at least one steam supply device (7), and the pressed material mat is thereby heated. The method is characterized in that the transport belts (5a, 5b) in the double-belt pre-heating device (3) are supplied with hot air by means of a drying device (9) arranged downstream of the steam supplying device (7) in the transport direction (T) such that the moisture deposited on the transport belt (5a, 5b) by means of the steam pre-heating process is picked up by the hot air (L) flowing along the transport belts (5a, 5b) and is discharged together with the hot air.

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B30B 9/24 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
• B30B 15/06 - Platens or press rams
• B30B 15/30 - Feeding material to presses
• B30B 15/34 - Heating or cooling presses or parts thereof
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres

Abstract

The invention relates to a device (1) for assembling material panels (10), in particular to form parts of a web product (2) extending along three spatial directions (X, Y, Z) and having finite dimensions in at least two spatial directions (Y, Z), wherein the device (1) comprises at least one separating unit (5), with a separating tool (3) and a base (4), and a guide unit (6), wherein at least the base (4) of the separating unit (5) is arranged such that it can move along the guide unit (6), wherein the device (1) has a first drive (7) for moving the separating tool (3) in relation to the base (4) and a second drive (8) for moving the base (4) in relation to the guide unit (6). A device of this type is provided which can be operated even at high working speeds, i.e. high frequencies of an intermittently operating material panel production system or high web speeds of a continuously operating material panel production system, with low space requirements and advantageously also with low energy requirements. It is also proposed that the device should have a third drive (9), provided for moving said base (4) in relation to the guide unit (6), like the second drive (8).

IPC Classes  ?

• B23D 45/20 - Flying sawing machines, the saw carrier of which is reciprocated in a guide and moves with the travelling stock during sawing
• B27B 5/06 - Sawing machines working with circular saw bladesComponents or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
• B27B 5/065 - Sawing machines working with circular saw bladesComponents or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage
• B23D 47/08 - Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for bringing the circular saw blade to the workpiece or removing same therefrom

Abstract

1211).

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B30B 9/24 - Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
• B30B 15/06 - Platens or press rams
• B30B 15/30 - Feeding material to presses
• B30B 15/34 - Heating or cooling presses or parts thereof
• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles
• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres

Abstract

The invention relates to a multi-media nozzle, in particular two-medianozzle, for atomising a fluid using an atomising medium, comprising a nozzle body (1) having at least one outer tube (2), an inner tube (3) arranged in the outer tube, and a nozzle needle (4) arranged in the inner tube such that it can be moved in the longitudinal direction (L), and comprising a drive (5) for the moving of the nozzle needle (4) in the longitudinal direction (L). An inner ring channel (6) for the fluid is arranged between the nozzle needle (4) and inner tube (3) and an outer ring channel (7) for the atomising medium is arranged between the outer tube (2) and inner tube (3), wherein the inner tube (3) has an end-side outlet opening (8) for the fluid, which connects at the end to the inner ring channel (6), wherein the nozzle needle (4) can be introduced into the outlet opening (8), in order to close the outlet opening (8) with its needle end (16), in such a way that, in the closed position of the nozzle needle (4), an outer closing surface (17) surrounding the nozzle needle (4) all around the outer circumference lies against a corresponding inner closing surface (18) in the inner tube. The nozzle is characterised in that a control surface (20), formed by a control cone (19) and inclined transverse to the needle axis (A), is arranged on the nozzle needle (4) on the side of the outer closing surface (17) facing away from the needle end (16), spaced apart from said closing surface and positioned all around the outer circumference, wherein by moving the nozzle needle (4) in the longitudinal direction (L), the control surface (20) cooperates with an inner surface (21) of the inner ring channel (6) in such a way that the through-flow through the inner ring channel (6) can be changed.

IPC Classes  ?

• B27N 1/02 - Mixing the material with binding agent
• F02M 43/04 - Injectors peculiar thereto
• B05B 1/30 - Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages

Abstract

The invention relates to an apparatus for monitoring the lubricating state of a rotating belt (4), to which a lubricant has been applied, for transporting material to be pressed, in particular in a continuously operating press (1), said apparatus comprising at least one first detection device (D1) of a first type located in the region of the belt (4) and at least one second detection device (D2) of a second type located in the region of the belt (4). The first detection device (D1) is designed to produce a quantity signal (S1) dependent on the quantity of lubricant on the belt (4). In order to distinguish a lubricant on the belt (4) from dirt particles on the belt (4) or from a lubricant contaminated with dirt particles, the second detection device (D2) is designed to produce a material signal (S2) dependent on the extent to which the lubricant on the belt (4) is contaminated.

IPC Classes  ?

• B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• G01N 33/28 - Oils
• G01N 21/88 - Investigating the presence of flaws, defects or contamination
• G01N 21/64 - FluorescencePhosphorescence
• G01N 21/45 - RefractivityPhase-affecting properties, e.g. optical path length using interferometric methodsRefractivityPhase-affecting properties, e.g. optical path length using Schlieren methods
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to an apparatus and to a method for monitoring the lubricating state of a rotating belt (4), to which a lubricant has been applied, for transporting material to be pressed. The invention also relates to a continuous press comprising such a monitoring device and to a method for operating such a press. One or more sensors (9) are provided in the region of the belt (4), using which sensors at least one measurement signal (M) dependent on the quantity of lubricant on the belt (4) can be produced. According to the invention, the sensors (9) are designed as capacitive sensors which each have at least one sensor plate (10) located at a distance from the belt (4) and which, together with the belt (4), each form a capacitor (11) having a capacitance which depends on the quantity of lubricant on the belt (4).

IPC Classes  ?

• B30B 15/26 - Programme control arrangements
• G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
• F16N 29/02 - Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditionsUse of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to a method for applying glue to comminuted lignocellulosic particles (10) in the production of material boards, in which a glue which can be cured by temperature and/or addition of curing agents and comprises at least one formation of colloids is brought via a conveying device (2) of adjustable volumetric flow rate and via conveying lines (15a, 15c) to a dispersing unit (1) in which the glue is homogenised by means of a comminution device and a mixing device and is then conveyed via conveying lines (15a) to nozzle assemblies (6) which spray the glue onto the particles (10) in a mixing chamber (5). According to the invention, the amount of glue conveyed is determined and assigned in an evaluation unit (8) to a rotation speed of the dispersing unit, and this rotation speed is then set to ensure sufficient viscosity and reactivity for the production of material panels in a glue which is used for wetting lignocellulosic particles, in particular wood chips.

IPC Classes  ?

• B27N 1/02 - Mixing the material with binding agent
• B01F 3/22 - Aftertreatment of the mixture
• B05B 12/08 - Arrangements for controlling deliveryArrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off

Abstract

The invention relates to a device and a method having a first and a second zone (Z1, Z2) for producing insulating or acoustic panels from a pressed material mat (2) which consists at least partially of lignocellulose particles coated with binders, the first zone (Z1) being designed for heating and/or compressing the pressed material mat, and the second zone (Z2) being designed for curing the pressed material mat with the aid of calibration plates (3), and there being driven circulating screen bands (5a-5f) in contact with the upper and lower pressed material mat surfaces. According to the invention, to increase the production speed, at least four circulating screen bands (5a-5f) are used, at least two of which are in operative contact with the pressed material mat (2) in the region of the first zone (Z1), and at least two of which are in operative contact with the pressed material mat (2) in the region of the second zone (Z2).

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The invention relates to a device (1) for monitoring a state of lubrication, which can be influenced by a lubricant (2), of a continuous belt (3) which is designed for transporting material to be pressed (4) and for transferring a pressing force onto the material to be pressed (4) in a continuously operable press (5) in order to produce material panels, the device (1) having an input interface (6), which is designed to at least indirectly receive at least one signal from a sensor (7), the sensor (7) being designed to measure a physical and/or a chemical phenomenon which is at least indirectly related to a state of lubrication on a surface (8) of the belt (3), and the device (1) also comprising an evaluation unit (9) for ascertaining a lubrication parameter as a characteristic variable for a state of lubrication on the surface (8) of the belt (3) on the basis of the at least one signal from the sensor (7). The object of the invention is to reliably monitor the state of lubrication, which can be influenced by a lubricant, of a continuous belt in a continuously operable press. According to the invention, the device (1) has an exciter device (10) which is designed to influence the at least one physical and/or chemical phenomenon of the lubricant (2) to be detected by the sensor (7). The invention also relates to a continuously operable press (5) for producing material panels and to a method for monitoring a state of lubrication, which can be influenced by a lubricant (2), of a continuous belt (3).

IPC Classes  ?

• B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• G01N 21/64 - FluorescencePhosphorescence
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to a mixing device for continuously mixing fibres or chips with a binder for the production of fibre- or chipboards, wherein the mixing device has at least one mixing chamber (1) supported by a framework (15, 6, 17), as well as multiple mixing or conveying tools (3, 8, 9, 10) secured on a rotatable mixer shaft (2) therein. In order to create a mixing device for fibres and glues which is more maintenance friendly with the use of glues that cure at higher temperatures, according to the invention, cooling channels (26) formed of semi-finished products and having at least one coolant inlet (28) and a coolant outlet (29) are attached to the outer upper surface of the mixing chamber (1).

IPC Classes  ?

• B27N 1/02 - Mixing the material with binding agent
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01F 7/02 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
• B01F 13/00 - Other mixers; Mixing plant, including combinations of dissimilar mixers
• B01F 13/10 - Mixing plant, including combinations of dissimilar mixers
• B01F 15/00 - Accessories for mixers
• B01F 15/06 - Heating or cooling systems

Abstract

The invention relates to a mixing device for continuously mixing fibres or chips with a binder for the production of fibre- or chipboards, wherein the mixing device has at least one mixing chamber (1) supported by a framework (15), as well as multiple mixing or conveying tools (3, 8, 9, 10) secured on a rotatable mixer shaft (2) therein. In order to create a mixing device which is easier to maintain and to adapt to different process parameters, according to the invention, the mixer shaft (2) has partially covered grooves (20) in which moveable sliding blocks (21) are arranged which can be connected to a mixing or conveying tool (3, 8, 9, 10).

IPC Classes  ?

• B27N 1/02 - Mixing the material with binding agent
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01F 7/02 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
• B01F 13/00 - Other mixers; Mixing plant, including combinations of dissimilar mixers
• B01F 13/10 - Mixing plant, including combinations of dissimilar mixers
• B01F 15/00 - Accessories for mixers
• B01F 15/06 - Heating or cooling systems

Abstract

The invention relates to a mixer system comprising at least two mixing devices (101) for continuously mixing fibres or chips with a binder for the production of fibre- or chipboards, wherein each mixing device (101) has at least one mixing chamber (1) supported by a framework (15, 16, 17), as well as multiple mixing or conveying tools (3, 8, 9, 10) secured on a rotatable mixer shaft (2) therein. In order to create a mixer system having mixing devices for fibres and glues, which can also undergo maintenance work during production, according to the invention, the mixer system (100) has at least one working position (41.1, 41.2) in which a mixing device (101) carries out the mixing process during operation, and at least one maintenance position (42.1, 42.2), at a distance from the working position (41.1, 41.2), to which a mixing device (101) can be transported by a transport means (43).

IPC Classes  ?

• B27N 1/02 - Mixing the material with binding agent
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01F 7/02 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
• B01F 13/00 - Other mixers; Mixing plant, including combinations of dissimilar mixers
• B01F 13/10 - Mixing plant, including combinations of dissimilar mixers
• B01F 15/00 - Accessories for mixers
• B01F 15/06 - Heating or cooling systems

Abstract

The invention relates to a scattering device (1) for producing a scattered particle mat on a scattering conveyor belt (2) in the course of producing wood material boards, comprising at least one scattered particle silo (3) and a scattering head (4) arranged below the scattered particle silo and above the scattering conveyor belt, wherein the scattering head has multiple scattering rollers (5) which are distributed along the transport direction (T) and which scatter the scattered particles on the scattering conveyor belt, and the scattering head has at least two scattering regions (4a, 4b) which are arranged one behind the other and each of which has a different roller geometry and/or a different roller mode. A switching device (10) is arranged between the scattered particle silo and the scattering head, said switching device being used to guide the scattered particles flow out of the scattered particle silo to selectively either only the first scattering region or only the second scattering region of the scattering head.

IPC Classes  ?

• B27N 3/14 - Distributing or orienting the particles or fibres

Abstract

The invention relates to a continuous furnace for continuously heating a compressed material mat (1), in particular in the course of the production of wooden composite boards, comprising a tunnel-type housing (5) wherein the compressed material mat (1) can be guided through the interior (7) thereof. The furnace is characterised in that one or more waveguide slot antennas (8a, 8b) are arranged in or on the housing (5), which have respective multiple outlet slots (9) distributed along the antenna longitudinal direction in an antenna wall (19) for the radiation of microwaves into the interior (7), wherein the waveguide slot antennas (8a, 8b) are oriented transverse in relation to the through-flow direction (D) in such a way that the radiation direction (R) of the waveguide slot antenna (8a, 8b) oriented perpendicular to the antenna wall (19) is oriented transverse to the through-flow direction (D) at an angle (α) that is different to 90°.

IPC Classes  ?

• H05B 6/70 - Feed lines
• H05B 6/78 - Arrangements for continuous movement of material

Abstract

The invention relates to a continuous furnace (4) for continuously heating a compressed material mat (1), in particular in the course of the production of wooden composite boards, comprising a tunnel-type housing (5) wherein the compressed material mat (1) can be guided through the interior (7) thereof. The continuous furnace is characterised in that one or more waveguide slot antennas (8a, 8b) are arranged in or on the housing (5), which have respective multiple outlet slots (9) distributed along the antenna longitudinal direction in an antenna wall (19) for the radiation of microwaves into the interior (7), wherein the tunnel-type housing (5) has an upper wall (10) arranged above the compressed material mat (1) or compressed material mat plane, and a lower wall (11) arranged below the compressed material mat or compressed material mat plane, and two side walls (12) arranged next to the compressed material mat, wherein the side walls are designed in a curved manner.

IPC Classes  ?

• H05B 6/70 - Feed lines
• H05B 6/78 - Arrangements for continuous movement of material

Abstract

The invention relates to a rolling bar (1) as a rolling element unit for a continuous press (2) having continuously revolving pressing belts (3), wherein the rolling bar (1) is formed cylindrically with a cylinder jacket (6a) and end faces (6b) at the ends. Said rolling bar is characterised in that the cylinder jacket (6a) comprises, at least in regions, a structured surface having elevations and pocket-like depressions between the elevations, wherein a dry lubricant is introduced into the depressions.

IPC Classes  ?

• B30B 5/04 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band
• B30B 15/00 - Details of, or accessories for, pressesAuxiliary measures in connection with pressing
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The invention relates to a continuous press for pressing pressed-material mats (1) into pressed-material boards in the course of producing engineered wood boards, comprising a press lower part (4) and a press upper part (2), press belts (6) endlessly circulating in the press lower part (4) and the press upper part (2), between which the pressed-material mat (1) can be pressed. In the press lower part (4) and/or the press upper part (2), at least one heatable pressing plate (3, 5) is arranged, and the press belts (6) are supported by the pressing plates (3, 5), with the interposition of rolling bars (7). In order to avoid the disadvantages that rolling bars circulating in chains bring about, according to the invention, at least a part of the rolling bars (7) are rotatably mounted in hydrostatic bearings (24) under the influence of a pressure medium.

IPC Classes  ?

• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• F16C 32/06 - Bearings not otherwise provided for with moving member supported by a fluid cushion formed, at least to a large extent, otherwise than by movement of the shaft, e.g. hydrostatic air-cushion bearings

Abstract

The invention relates to an installation for producing glued plant particles, in particular from annual plants (e.g. straw), in order to produce boards, e.g. fibreboards or chipboards, having at least one comminuting apparatus (2) for comminuting plant-based starting material to form scatterable plant particles, and having a gluing apparatus (15) for gluing the plant particles. This installation is characterized in that at least one first screening apparatus (3) for separating silicate particles from the plant particles is arranged between the comminuting apparatus (2) and the gluing apparatus (15).

IPC Classes  ?

• B27N 1/00 - Pretreatment of moulding material
• B07B 4/02 - Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
• B07B 9/02 - Combinations of similar or different apparatus for separating solids from solids using gas currents
• B07B 11/02 - Arrangement of air or material conditioning accessories
• B07B 11/06 - Feeding or discharging arrangements
• B27N 3/14 - Distributing or orienting the particles or fibres
• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• C01B 33/20 - Silicates

Abstract

The invention relates to a device and a method for separating and/or recovering silicate particles from plant material. This device and the method are characterized by an air classifier (3, 14), which has at least one material inlet (4), an air inlet (6), arranged under the material inlet (4), an air outlet (7) and at least one particle receptacle (8), arranged under the air outlet, wherein the plant particles recovered from plant material by crushing can be subjected to an air stream in the air classifier (3, 14) in such a way that silicate particles contained in the plant material are removed by the air stream via the air outlet (7) and, as a result of gravitational force, the plant particles are received by the particle receptacle (8) arranged under the air outlet (7) and taken away.

IPC Classes  ?

• B07B 4/02 - Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
• C01B 33/18 - Preparation of finely divided silica neither in sol nor in gel formAfter-treatment thereof
• B07B 9/02 - Combinations of similar or different apparatus for separating solids from solids using gas currents
• B07B 11/02 - Arrangement of air or material conditioning accessories
• B07B 11/06 - Feeding or discharging arrangements
• B27N 1/00 - Pretreatment of moulding material
• C01B 33/20 - Silicates

Abstract

Method for producing a component (1) from a fibre composite material, comprising the steps of: introducing a matrix-impregnated fibre (1) onto a cylinder-like inner mould (7) of a mould space formed between the inner mould (7) and a cylinder-like outer mould (8), introducing a separating membrane (14a) onto the matrix-impregnated fibre (1) in such a way that between the outer mould (8) and the separating membrane (14a) there forms a cavity (15), extending along the lateral surface (14) of the outer mould (8), exposing the cavity (15) to a thermal oil (17) at a temperature greater than the melting point of the matrix and at a pressure greater than ambient pressure in such a way that the thermal oil (17) acts with the pressure on the separating membrane (14a).

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 43/10 - Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
• B29C 35/04 - Heating or curing, e.g. crosslinking or vulcanising using liquids, gas or steam
• B64C 1/00 - FuselagesConstructional features common to fuselages, wings, stabilising surfaces or the like

Abstract

The invention relates to a press comprising a press frame (2), having an upper beam (3) and a lower beam (4), an upper tool (la) and a lower tool (lb) provided on the lower beam (4) for producing a moulded part, at least one press cylinder (8) provided on the upper beam (3) and having a piston (9) which is joined to the upper tool (la) via a bearing (10) and configured to exert a pressing force on the moulded part, and a compensation means (12) provided on the bearing, which is configured to exert a variably adjustable compensation force opposing the pressing force on the piston (9) and the upper tool (la) in order to compensate for at least one play generated by a weight force of the upper tool (la) between the piston (9) and the upper tool (la).

IPC Classes  ?

• B30B 15/06 - Platens or press rams
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
• B29C 43/36 - Moulds for making articles of definite length, i.e. discrete articles
• B29C 43/58 - Measuring, controlling or regulating
• B30B 1/34 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen

Abstract

The invention relates to a rolling bar (1) as a rolling element unit for a continuous press (2) having endlessly revolving pressing belts (3); the rolling bar (1) is cylindrical, is made of steel, for example, and has a cylinder jacket (6a) and end faces (6b); the end faces (6b) are optionally provided with bearing bores (7) into which rolling bar bearing pins can be or are inserted. The rolling bar is characterized in that at least some areas at least of the cylinder jacket (6a) are provided with a self-lubricating coating (8).

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The invention relates to a rollbar chain for a continuous press (1), in particular for producing timber material boards, composite boards or composite components, wherein the rollbar chain is formed as a plate-link chain (6), to which rollbars (5) can be fastened by means of rollbar bearing bolts (7), wherein the plate-link chain (6) has chain plates (9, 10) connected by means of chain bolts (12), wherein the chain plates (9, 10) have elongate holes (18) which extend in the chain circulation direction and into which the rollbar bearing bolts (7) can be inserted, characterized in that the chain bolts (12) have, at least in some sections, a self-lubricating coating.

IPC Classes  ?

• F16G 13/18 - Chains having special overall characteristics
• B30B 5/04 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• F16G 13/06 - Driving-chains with links connected by parallel driving-pins with or without rollers

Abstract

The invention relates to a method for pressing a pressing-material mat (M) in the course of the production of wood material panels, in a continuous press, wherein the press has a press frame (1), a heatable upper press plate (2) and a heatable lower press plate (3), wherein, in order to set a pressing gap between the press plates, the upper press plate (2) and/or the lower press plate (3) is acted upon by pressing cylinders (7) supported on the press frame (1), and wherein the press has a heatable upper inlet plate (5) arranged before the upper press plate (2) on the inlet side and has a heatable lower inlet plate (6) arranged before the lower press plate (3) on the inlet side, wherein, in order to set an inlet gap between the inlet plates, the upper inlet plate (5) and/or the lower inlet plate (6) is acted upon by inlet cylinders (8) supported on the press frame. The method is characterized in that the upper inlet plate (5) and/or the lower inlet plate (6) is designed or set to be wave-shaped in such a way that the pressing-material mat (M) passes through a plurality of pulsatingly varying compression phases in succession in the working direction (A) in the inlet gap.

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to a press for producing a component from a fibre-composite material, which is designed as a membrane press, comprising a press frame (15), a press lower part (3), on which a mould (4) is arranged, a press upper part (5), which has a pressure chamber (6) that can be sealed with respect to the press lower part (3), one or more press cylinders (9), which act on the press upper part (5) and/or the pressure lower part (3), a membrane (11), which can be clamped over or against the mould (4), a vacuum pump (12), with which a negative pressure can be generated on one side of the membrane (11), for example on the underside. The press frame (15) is designed as an O-frame comprising an upper horizontal arm and a lower horizontal arm and at least two vertical arms which laterally delimit the press chamber and connect the horizontal arms.

IPC Classes  ?

• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B30B 15/04 - FramesGuides

Abstract

The invention relates to a method and a press for producing a component from a fiber composite material by deforming a thermoplastic semi-finished product, in particular an organic sheet (2), in a membrane press (1), wherein a mold (4) has been or is arranged in the membrane press (1), wherein at least one semi-finished product/organic sheet (2) is positioned on top of or against the mold as a workpiece, and wherein an elastically stretchable membrane (11) is preloaded while stretched over the mold (4) with the semi-finished product/organic sheet (2) arranged therebetween. At the same time, the semi-finished product/organic sheet (2) is deformed in order to form the component, in that a vacuum is applied to the membrane (11) on the side facing the mold and a positive pressure is optionally additionally applied to the membrane on the side facing away from the mold such that the semi-finished product/organic sheet (2) is shaped onto the mold. A mold is used which is permeable to air at least in some areas and which is produced, for example, from porous aluminum.

IPC Classes  ?

• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure
• B29C 51/36 - Moulds specially adapted for vacuum forming

Abstract

The invention relates to a press for producing a component from a fibre-composite material, which is designed as a membrane press, comprising a press frame (15), a press lower part (3) on which a mould (4) is arranged, a press upper part (5) having a pressure chamber (6) that can be sealed against the press lower part (3), one or more press cylinders (9) which are supported on the press frame and act on the press upper part (5) and/or the press lower part (3), a membrane (11) that can be tensioned over the mould (4), a vacuum pump (12) with which a vacuum can be generated on a side of the membrane (11), for example on the underside, characterised in that the press frame is designed as a C-frame with an upper horizontal C-arm, a lower horizontal C-frame and a vertical C-base.

IPC Classes  ?

• B30B 15/04 - FramesGuides
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B30B 5/02 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of a flexible element, e.g. diaphragm, urged by fluid pressure

Abstract

The invention relates to a method for producing a component from a fibre composite material by deforming a thermoplastic organic sheet (2) in a membrane press (1), wherein a mould (4) is arranged in the membrane press (1), wherein at least one organic sheet (2) is positioned on or in the mould as a work piece, and wherein an elastically flexible membrane (11) is flexibly stretched over the mould (4) with the interposition of the organic sheet (2). In this way, the organic sheet (2) is deformed with the formation of the component, wherein the membrane (11) is applied with an under-pressure on the side facing the mould, and with an over-pressure on the side facing away from the mould, such that the organic sheet (2) is shaped onto the mould.

IPC Classes  ?

• B29C 70/34 - Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or coreShaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression
• B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
• B29C 51/28 - Component parts, details or accessoriesAuxiliary operations for applying pressure through the wall of an inflated bag or diaphragm

Abstract

The invention relates to a method for producing pipes, wherein a sheet-metal plate (1), which is flat or is bent at at least one edge (2), undergoes at least two shaping processes, of which in the first shaping process the sheet-metal plate (1) is formed into a U shape in a U press (100) in that a punch (4) impresses the sheet-metal plate (1) in a central region, while surrounding regions lie at least partially on at least one support (5, 6) and the legs of the sheet-metal plate formed into a U shape are pressed toward each other by lateral actuators (5, 6), by means of at least one pressing surface (15, 16) in each case, and in the second shaping process the sheet-metal plate (1) formed into a U shape is converted into a pipe shape in an O press by means of half-shell tools that move toward each other. In order to improve the U forming of the sheet-metal plate, the actuators (5, 6) according to the invention press the legs (20, 21) of the sheet-metal plate (1) formed into a U shape in at least a first and a second pressing operation, which occur one after the other.

IPC Classes  ?

• B21D 5/01 - Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments

Abstract

The invention relates to a pipe bending press for bending metal sheets (1) in the course of the production of pipes, having a bending blade (4) which is arranged in or on an upper press part (2) and to the lower end of which an upper tool (5) is fixed, and having two lower tools (6a, 6b) arranged in or on a lower press part (3) and spaced apart from each other (transversely with respect to the working direction). This press is for bending a metal sheet arranged between the upper press part (2) and the lower press part (3); at least one of the lower tools (6a, 6b) can be moved along the working direction (A) against the upper tool (5) and relative to the other lower tool (6b, 6a) during an operating stroke.

IPC Classes  ?

• B21D 5/01 - Bending sheet metal along straight lines, e.g. to form simple curves between rams and anvils or abutments

Abstract

The invention relates to a press frame, in particular for a forging press, having an upper beam (1) and a lower beam (2) and lateral stands (3) arranged between the upper beam (1) and the lower beam (2), the upper beam (1) and the lower beam (2) being clamped against each other via tie rods (4) with the lateral stands (3) interposed therebetween, and the tie rods (4) each being formed by a plurality of flexible tensile elements. The press frame is characterized in that the flexible tensile elements are in the form of stranded prestressing steel wires (5).

IPC Classes  ?

• B30B 15/04 - FramesGuides

Abstract

The invention relates to an axial rolling device for a ring rolling mill, comprising a roller (3, 4) and a shaft (7) connected thereto, characterized in that the shaft (7) is designed as a divided shaft having at least one front shaft section (7a) facing the roller (3, 4) and one rear shaft section (7b) facing away from the roller (3, 4), said shaft sections being detachably connected to each other.

IPC Classes  ?

• B21H 1/06 - Making articles shaped as bodies of revolution rings of restricted axial length

Abstract

Rotor body (5) for a comminuting device, particularly a drum chipper for comminuting wood or the like, wherein a plurality of blades (3) can be fastened on the rotor body (5) so as to be distributed around the circumference, forming a substantially cylindrical rotor drum (1). The rotor body (5) is characterized in that it is manufactured as a one-piece casting of ductile cast iron, into which are formed a plurality of eccentrically arranged rotor chambers (6) running parallel to the rotor axis (2), which chambers each extend over the entire length of the rotor (L) and are open at one end.

IPC Classes  ?

• B22D 19/00 - Casting in, on, or around, objects which form part of the product
• B22C 9/24 - Moulds for peculiarly-shaped castings for hollow articles
• B22C 9/04 - Use of lost patterns
• B27L 11/00 - Manufacture of wood shavings, chips, powder, or the likeTools therefor
• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B02C 18/18 - KnivesMountings thereof

Abstract

The invention relates to a knife carrier (3) for a knife ring (2) of a knife ring flaker, wherein knives (4) and wear plates (5) are fastened to the knife carrier (3), wherein the wear plates (5) are fastened to the knife carrier (3) by means of fastening screws (13) and bear against the knife carrier (3) with their rear side (7) that faces the knife carrier and, in the mounted state of the knife ring, form the inner surface of the knife ring with their front side that faces the knife carrier (3). The knife carrier (3) is characterized in that the wear plate (5) has at least one recess (10) that is open towards the rear side (7), one or more retaining parts (9) being inserted in a form-fitting manner into said recess (10), wherein the retaining parts (9) are provided with threaded bores (11), into which the fastening screws (13) are screwed such that the wear plate is restrained against the knife carrier (3) during the introduction of the fastening screws into the retaining parts (9) or moulded parts.

IPC Classes  ?

• B27L 11/00 - Manufacture of wood shavings, chips, powder, or the likeTools therefor
• B02C 17/22 - Lining for containers

Abstract

The invention relates to a hydraulic intermittently operated press for the production of moulded parts from plastics material, in particular from fibre-reinforced plastic, in a press tool consisting of an upper tool (1a) and a lower tool (1b), having - a press frame (2) having an upper strut (3), a lower strut (4) and side parts (5), - an upper tool carrier (7), and - a plurality of pressing cylinders (8) fastened to the upper strut (3), the pistons (9) of said pressing cylinders (8) working on the upper tool carrier (7), wherein the lower tool (1b) is arranged on the lower strut (4) and the upper tool (1a) is fastened or fastenable to the upper tool carrier (7). This intermittently operated press is characterized in that the pressing cylinders (8) are in the form of double-action differential cylinders, the pistons (9) of which are attached directly to the upper tool carrier (7) by means of tensile/compressive connections and are designed not only for opening and closing but also for applying the pressing force.

IPC Classes  ?

• B30B 1/34 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
• B30B 15/06 - Platens or press rams
• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• B29C 45/67 - Mould opening, closing or clamping devices hydraulic

Abstract

The invention relates to a roll for a ring rolling mill, characterized in that the roll (3, 4) has a main roll body (5) and a roll cap (6) placed on the main roll body (5).

IPC Classes  ?

• B21H 1/06 - Making articles shaped as bodies of revolution rings of restricted axial length

Abstract

The invention relates to a device for heating forging tools, in particular for a free-form forging press, with a tool magazine (4), comprising at least one tool transfer carriage (6) on which multiple tool supports for at least one respective tool set are arranged. The tool transfer carriage can be moved relative to the press (1) in order to select a tool set that can be fed to the press. The device is characterized by an induction heating device with at least one energy supply unit (8) and multiple inductors (9, 9'), each of which corresponds to a tool set, in order to inductively heat the tool sets. The inductors (9, 9') can be moved together with the tool transfer carriage (6) and the tool sets relative to the press (1).

IPC Classes  ?

• B21J 9/08 - Swawing pressesUpsetting presses equipped with devices for heating the workpiece
• B21J 13/08 - Accessories for handling work or tools
• B21K 29/00 - Arrangements for heating or cooling during processing

Abstract

The invention relates to a continuous press for pressing pressed-material mats to form pressed-material boards, in particular for producing engineered wood boards, comprising an upper press part having an upper press plate and a lower press part having a lower press plate and further comprising steel press belts continuously revolving in the upper press part and in the lower press part. The press comprises a press body having a plurality of press frames arranged next to one another in the longitudinal press direction. In addition, pressing cylinders are provided, which are supported on the press frames and work on the upper press plate and the lower press plate. Said continuous press is characterized in that each of the several press frames is combined with several pressing cylinders to form a mechanically and electrically and hydraulically pre-assembled frame unit, which can be transported in a standard freight container.

IPC Classes  ?

• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone
• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band

Abstract

The invention relates to a cycle press, in particular a short-cycle press, for producing and/or coating board-shaped materials, in particular engineered wood boards, comprising a press body having several press frames arranged next to one another in the longitudinal press direction, and further comprising an upper press plate and a lower press plate, wherein pressing cylinders supported on the press frames act on the upper press plate or the lower press plate. According to the invention, said cycle press is characterized in that the pressing cylinders are attached to the press frames by means of frame pins, wherein said frame pins engage in cut-outs of the press frames. Thus, the pressing cylinders can be prestressed against the press frames.

IPC Classes  ?

• B30B 1/32 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
• B30B 15/04 - FramesGuides

Abstract

The invention relates to a continuous press for compressing pressed-material mats into pressed-material boards, in particular for producing wood-based material boards, having an upper press part having an upper press plate and a lower press part having a lower press plate and having endlessly circulating steel press belts in the upper press part and in the lower press part, and also having a press framework having a multiplicity of closed press frames arranged in a row in the press longitudinal direction. Supported on the press frames are press cylinders which operate on the upper press plate or the lower press plate. The press is characterized in that the press frames are each in the form of cast frame parts made of cast metal. Preferably, the press frames are each in the form of integrally manufactured cast parts, e.g. made of ductile cast iron.

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B30B 15/04 - FramesGuides

Abstract

The invention relates to a cycle press, in particular a short-cycle press, for producing and/or coating board-shaped materials, in particular engineered wood boards, comprising a press body having several press frames arranged next to one another in the longitudinal press direction, and further comprising an upper press plate and a lower press plate, wherein pressing cylinders supported on the press frames act on the upper press plate or the lower press plate. According to the invention, said cycle press is characterized in that insulation boards are clamped between the piston and press plates, which insulation boards are inserted in cassette holders. According to another concept, attachment boards are provided. The invention further relates to modified locking brackets. In total, a press designed for particularly high press pressures can be provided.

IPC Classes  ?

• B30B 1/34 - Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure involving a plurality of plungers acting on the platen
• B30B 15/02 - DiesInserts therefor or mountings thereofMoulds
• B30B 15/28 - Arrangements for preventing distortion of, or damage to, presses or parts thereof
• B27N 3/20 - Moulding or pressing characterised by using platen-presses
• B30B 15/06 - Platens or press rams

Abstract

A device for gluing fibers or similar particles, in particular for the production of wood material panels, for example fiber panels, having a blowline (3) through which the fibers to be glued are transported, wherein there are connected to the blowline a plurality of nozzles (4) which issue into the blowline and by means of which the fibers transported through the blowline can be sprayed with glue, wherein the nozzles (4) are formed as multiple-substance nozzles, for example two-substance nozzles for the purpose of steam atomization, to which nozzles in each case at least one glue feed line (5) and one steam feed line (6) are connected, characterized in that in each case one glue valve (7) and one throughflow measurement device (8) are integrated into the glue feed lines (5), and in that the glue valves (7) and the throughflow measurement devices (8) are connected to at least one control and/or regulating device, such that the throughflow rate for each glue feed line (5) can be separately controlled or regulated by means of the glue valves (7).

IPC Classes  ?

• B27N 1/02 - Mixing the material with binding agent

Abstract

The invention relates to a continuous press for producing wood-material boards, comprising several press frames (3) arranged in a row in the longitudinal press direction, wherein an upper press plate (1) and a lower press plate (2) forming a press gap (P) are arranged inside the press frames, wherein the upper press plate (1) or the lower press plate (2) is acted upon by several rows of cylinder-piston assemblies (6) distributed in the longitudinal press direction or working direction (A), which cylinder-piston assemblies are connected on one side to the transverse bars (3a, 3b) of the press frames (34) and on the other side to the respective press plate (1, 2), wherein the press plate (1, 2) facing away from the cylinder-piston assemblies (6) is connected to the transverse bars (3a, 3b) of the press frames associated with said press plate (1, 2) by means of the insertion of pressure distribution plates (7) therebetween, wherein supports (8) for the press plate (1, 2) are fastened to the pressure distribution plates (7) between two respective press frames (3) adjacent in the longitudinal press direction. The pressure distribution plates (7) having the supports (8) are arranged or distributed in the longitudinal pressure direction over a region that corresponds to more than 75% of the length of the press plates (1, 2).

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to a method for producing large cylindrical structures or large cylindrical molded parts (F), in particular fuselage parts for aircraft manufacture made of fiber-reinforced plastic, wherein fibers, preferably semi-finished fiber materials (4), and a curable plastic mass (5) are introduced into a molding space (3) between an inner cylindrical mold (1) and an outer cylindrical mold (2) and then cured. Said method is characterized in that the inner cylindrical mold (1) is made up of a plurality of inner segments (1a) distributed about the circumference, and the outer cylindrical mold (2) is made up of a plurality of outer segments (2a) distributed about the circumference, and that the outer segments (2a) are braced against the inner mold (1) by means of one or more tension cables (8) which are wound about the outer segments (2), interposing the fibers or semi-finished fiber material (4).

IPC Classes  ?

• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• B29C 70/46 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
• B29C 33/20 - Opening, closing or clamping
• B29C 33/48 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
• B29C 33/02 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means

Abstract

The invention relates to a guide blade (6) for a comminuting device, in particular for a knife-ring flaker or for a beater mill, comprising at least one baseplate (9) and at least one interchangeable beater bar (10) which, in a feed direction (V) extending transversely with respect to the beater bar longitudinal direction (L), is fastened to the baseplate (9) with a variable overhang (s) so as to extend beyond the baseplate (9), wherein the beater bar (10) is fastened to the baseplate (9) by means of a clamping strip (11) in that the clamping strip (11) is braced against the baseplate (9) by one or more fastening means (12) with the interposition of the beater bar (10). This guide blade is characterized in that, in order to vary the overhang (s) of the beater bar (10), the clamping strip (11) can be displaced along the feed direction (V) by means of at least one rotatable adjusting element, for example an eccentric adjusting element (13), wherein the clamping strip (11) is connected in a positively locking manner to the beater bar (10) such that, in the course of the displacement of the clamping strip (11), the beater bar (10) is displaced together with the clamping strip (11) along the feed direction (V).

IPC Classes  ?

• B02C 13/28 - Shape or construction of beater elements
• B02C 13/08 - Disintegrating by mills having rotary beater elements with horizontal rotor shaft with beaters rigidly connected to the rotor and acting as a fan
• B02C 13/20 - Disintegrating by mills having rotary beater elements with two or more co-operating rotors
• B27L 11/00 - Manufacture of wood shavings, chips, powder, or the likeTools therefor

Abstract

The invention relates to a method for manufacturing wood fiber insulating boards, wherein wood fibers are mixed with thermoplastic plastic fibers as binders and a fiber mat is produced therefrom, wherein multi-component fibers composed of at least one first and one second plastic component having different melting points are used as plastic fibers, wherein the fiber mat is heated in such a way that the second component of the plastic fiber softens and wherein the fiber mat is cooled down to produce the insulating board, characterized in that a steam/air mixture having a specified dew point flows through the fiber mat to heat the fiber mat and that multi-component plastic fibers are used as binders, the first component of which has a melting point above the dew point and the second component of which has a melting point below the dew point.

IPC Classes  ?

• B27N 3/02 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from particles

Abstract

The invention relates to a vulcanizing press system for producing treads for retreading tires, comprising a vulcanizing press (1) having a press frame (2) and one or more press levels (3), in which treads having a tire tread pattern are pressed from raw rubber strips, and further comprising at least one charging device (6) for charging the vulcanizing press (1) with the raw rubber strips. Said system is characterized in that the charging device (6) comprises at least one charging cart (7) which can be moved in the longitudinal press direction and which, at one or more levels, comprises one or more loading trays (8), each having an endlessly revolving conveyor belt (9), wherein the charging cart (7) containing the raw rubber strips arranged on the loading trays (8) can be moved in the working direction (R) into the vulcanizing press (1).

IPC Classes  ?

• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof
• B29D 30/06 - Pneumatic tyres or parts thereof
• B29D 30/56 - Retreading with prevulcanised tread
• B29C 31/08 - Feeding, e.g. into a mould cavity of preforms
• B29C 43/02 - Compression moulding, i.e. applying external pressure to flow the moulding materialApparatus therefor of articles of definite length, i.e. discrete articles

Abstract

The invention relates to an electric machine, in particular a generator or motor, e.g., a generator for a wind turbine, with a disk-type design, comprising a machine housing and a stator which is fixed to the machine housing and which is formed from multiple primary parts that lie on a circular ring, and comprising an armature disk on which multiple secondary parts that lie on a circular ring are arranged. The armature disk rotates, whereby a gap is formed between the primary parts and the secondary parts within the machine housing, and an armature shaft is connected or can be connected onto the armature disk in a rotationally fixed manner. Said machine is characterized in that the armature disk is rotatably mounted in the machine housing via an outer circumferential rolling bearing arrangement, and the outer circumferential rolling bearing arrangement receives radial forces as well as axial forces in both directions.

IPC Classes  ?

• F03D 11/00 - Details, component parts, or accessories not provided for in, or of interest apart from, the other groups of this subclass
• F03D 11/04 - Mounting structures

Abstract

The invention relates to a system for producing conveyor belts having a rope core, for example a wire rope core, comprising at least one rope unwinding unit having a plurality of rope reels, from which the ropes to be embedded in the conveyor belt are unwound, a combining unit in which the ropes, which are under tensile stress and run in the longitudinal belt direction parallel to one another in one plane, are combined with one or more raw rubber webs to form a raw belt, and a vulcanization press in which the raw belt is vulcanized by means of pressure and/or heat forming the conveyor belt. Said system is characterized in that the rope unwinding unit is designed as a rope unwinding and tensioning unit, in which each rope is individually tensioned to the required production tension.

IPC Classes  ?

• B29D 29/06 - Conveyor belts
• B29C 55/04 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique
• B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
• B65G 15/36 - Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric the layers incorporating ropes, chains, or rolled steel sections
• B65H 59/18 - Driven rotary elements

Abstract

The invention relates to an installation for producing cord conveyor belts, e.g. steel cord conveyor belts, comprising at least one cord unwinding device having a plurality of cord coils from which the cords to be embedded into the conveyor belt are unwound, a combiner device in which the cords that are under tensile stress and extend in parallel in the direction of the belt in one plane are combined with one or more unvulcanized rubber webs to give a raw belt, and a vulcanizing press in which the raw belt is vulcanized by means of pressure and/or heat, thereby forming the conveyor belt, at least one alignment device having at least one spreader comb modifying the cord interspaces and defining e.g. the production interspace of the cords being interposed between the cord unwinding device and the combiner device. The installation is characterized in that the spreader comb is designed as a roller comb which has parallel guide grooves which extend continuously over the outer circumference of the comb, said grooves preferably having a groove interspace that corresponds to the production interspace.

IPC Classes  ?

• B29D 29/06 - Conveyor belts
• B29C 55/04 - Shaping by stretching, e.g. drawing through a dieApparatus therefor of plates or sheets uniaxial, e.g. oblique
• B29C 70/50 - Shaping or impregnating by compression for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
• B65G 15/36 - Belts or like endless load-carriers made of rubber or plastics with reinforcing layers, e.g. of fabric the layers incorporating ropes, chains, or rolled steel sections

Abstract

The invention relates to a molding tool (1) for producing molded parts made of plastic, for example, in particular made of a fiber composite material, comprising at least one top mold (2) and bottom mold (3) and a molding cavity (4) formed between the top mold (2) and bottom mold (3) that can be filled with a molding compound, the top mold (2) and bottom mold (2) contacting each other in a parting plane (5) in the closed state, optionally having the molding compound interposed therebetween. Said molding tool is characterized in that the molding tool (1) comprises at least one parting recess (9) open toward the outside of the mold in the region of the parting plane (5), into which at least one parting tool, such as a parting punch (10), can be inserted for opening the molding tool (1), pressing the tool halves apart opposite the closing direction (6).

IPC Classes  ?

• B29C 33/20 - Opening, closing or clamping
• B29C 33/22 - Opening, closing or clamping by rectilinear movement
• B29C 45/42 - Removing or ejecting moulded articles using means movable from outside the mould between mould parts
• B29C 45/64 - Mould opening, closing or clamping devices
• B29C 49/56 - Opening, closing or clamping means
• B22D 17/26 - Mechanisms or devices for locking or opening dies
• B22D 33/04 - Bringing together or separating moulds

Abstract

The invention relates to a method for producing molded parts made of plastic, in particular of a fiber composite material, in a continuously operating press (1), having a plurality of molding tools (12) each having at least one molding cavity, wherein the molding tools (12) are filled with a molding compound, wherein the molding tools (12) filled with the molding compound are fed through the press gap (4) of the press (1) one after another in the working direction of the press (1) and are thereby subjected to press pressure and optionally to heat, so that the molding compound cures, and wherein the molding tools (12) are removed from the press (1) on the exit side and are opened for removing the molded part.

IPC Classes  ?

• B29C 70/48 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM]
• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29C 33/20 - Opening, closing or clamping
• B29C 33/36 - Moulds or coresDetails thereof or accessories therefor movable, e.g. to or from the moulding station continuously movable
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising

Abstract

The invention relates to a method for producing wood composite boards or chip boards, in particular fibre boards or particle boards, wherein a granular-material mat is produced from fibres or chips, and wherein the granular-material mat is pressed in a continuous press using pressure and heat to form a panel strand. This method is characterized in that a primer is applied to the granular-material mat before it runs into the press, and in that the granular-material mat which is provided with the primer is pressed in the continuously working press to form a panel strand.

IPC Classes  ?

• B27N 3/18 - Auxiliary operations, e.g. preheating, humidifying, cutting-off
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to a method for producing a, for example, cylindrical, conical, arcuate or helical hollow body from steel, having a mass of more than 100 t, - wherein a plurality of planar or curved sheet metal strips (2) are cut from one or more steel sheets (1), - wherein a plurality of sheet metal strips are welded together in a planar fashion to form a multi-layer jacket segment (4), respectively, - wherein a plurality of jacket segments are welded together to form a hollow blank (7), and - wherein the, for example, cylindrical or conical hollow body is produced from the hollow blank (8) by metal working or machining.

IPC Classes  ?

• B21C 37/08 - Making tubes with welded or soldered seams
• B21C 37/15 - Making tubes of special shapeMaking the fittings
• B21J 1/00 - Preparing metal stock
• B21K 1/06 - Making machine elements axles or shafts
• B21K 1/76 - Making machine elements elements not mentioned in one of the preceding groups
• B21K 21/06 - Shaping thick-walled hollow articles, e.g. projectiles
• B23K 9/18 - Submerged-arc welding
• B23K 23/00 - Alumino-thermic welding
• B23P 15/00 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

The invention relates to a method for producing cardboard-like fiber boards or fiber board strands made of wood fibers, wherein wood fibers are glued using a bonding agent, wherein a fiber mat is generated on a spreading conveyor by means of a screen spreader head from the wood fibers glued by means of the bonding agent, wherein the screen spreader head comprises a screen floor surface and a plurality of distribution elements, and wherein a suction device is preferably disposed on the side of the screen belt conveyor opposite the screen floor surface, wherein fiber mat generated in said manner is pressed into a fiber board or a fiber board strand having a thickness of up to 3 mm in a continuous press, under the application of pressure and heat at a temperature of 120°C to 220°C and pressure of 15 bar to 50 bar.

IPC Classes  ?

• B27N 3/04 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres from fibres
• B27N 1/02 - Mixing the material with binding agent
• B27N 3/14 - Distributing or orienting the particles or fibres

Abstract

The invention relates to a method for producing cardboard panels or cardboard-panel strands from waste paper, wherein waste paper is comminuted into waste-paper fibres, wherein the waste-paper fibres are glued using a bonding agent, wherein a fibre mat is produced from the glued waste-paper fibres, and wherein the fibre mat is compressed in a continuous press, using pressure and heat, to form a cardboard panel or a cardboard-panel strand.

IPC Classes  ?

• B27N 3/00 - Manufacture of substantially flat articles, e.g. boards, from particles or fibres
• B27N 1/00 - Pretreatment of moulding material

Abstract

A double belt press for continuously producing pressed material boards from pressed material mats (1), comprising at least one top press part (2a) and an upper heatable press plate (3a), a bottom press part (2b), and a lower heatable press plate (3b), continuously revolving upper and lower steel press belts (4), which are supported against the upper or lower press plates (3a, 3b) by means of interposed roller body units (5) and/or sliding body units or sliding bodies, and control units (6) for setting the press gap formed between the upper and lower press plates (3a, 3b), wherein the top press part (2a) and/or the bottom press part (2b) are both composed of a plurality of upper press boxes (7a) and/or lower press boxes (7b), that are disposed behind one another in the press longitudinal direction (P), each of the boxes being composed of at least two side plates (8) running in the press longitudinal direction (P) and a plurality of web plates (9) connecting the side plates (8) and running transversely to the press longitudinal direction (P). To this end, the top press part (2a) composed of the upper press boxes (7a) and the bottom press part (2a) composed of the lower press boxes (7b) are connected to each other by way of the control units (6) and can be moved by the same relative to each other so as to set the press gap.

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone

Abstract

The invention relates to a method for continuously mixing fibers with a binding agent for producing fiberboards in a continuously operating mixing apparatus which comprises at least one mixing chamber and one or a plurality of mixing tools fastened to a rotating mixer shaft, wherein the mixing tools mix the fibers with the binding agent and convey it in a conveying direction through the mixer. Said method is characterized in that the rotational speed (n) of the mixer shaft and the diameter (d) of the mixing chamber are matched to each other with the proviso that the (nominal) centrifugal acceleration of the fibers in the region of the mixer inside wall is 10000 to 30000 m/sec2.

IPC Classes  ?

• B27N 1/02 - Mixing the material with binding agent
• B01F 7/02 - Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis

Abstract

The invention relates to a continuous press, particularly for producing engineered wood boards or the like, comprising an upper press part (1) having an upper press plate (2), a lower press part (3) having a lower press plate (4), and press belts (7) which revolve endlessly in the upper press part (1) and in the lower press part (3), are guided over deflection rollers (5, 6), and are supported on the respective press plate (2, 4) by means of interposed rolling element assemblies (8), wherein at least one of the deflection rollers (5, 6) is designed as a driving roller (6) and is provided with at least one drive (13) which acts on the driving roller (6) by means of an interposed gear unit (14). The drive (13) is configured as an electric motor that has a disk-type design and that comprises at least one rotating rotor disk (15) which acts on the driving roller (14) by way of only one planetary gear (14).

IPC Classes  ?

• B30B 5/06 - Presses characterised by the use of pressing means other than those mentioned in groups and wherein the pressing means is in the form of an endless band co-operating with another endless band
• B27N 3/24 - Moulding or pressing characterised by using continuously acting presses having endless belts or chains moved within the compression zone