The invention relates to a method and system (1) for producing hygienic articles having a respective absorber core at the upper and lower faces thereof, each absorber core having one or more layers of material webs, wherein a first material flow, preferably of cellulose fibers, is initially mixed with a second material flow made of a superabsorbent material, and wherein a third material flow formed from the mixture is portioned in order to form the absorber cores and is subjected to shaping, so that the absorber cores can subsequently be provided with the fabric layers. The invention aims for said method and system to in particular favor resource-conserving process management. To this end, according to the invention, a measurement value characterizing an actual value of the mass flow of at least one of the material flows is acquired for said flow, and an adjustment signal for controlling the process flow is generated on the basis of the measurement value.
A61F 13/15 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the bodySupporting or fastening means thereforTampon applicators
The invention relates to rotary punch, particularly a rotary punch comprising a foil cutter for use on the lateral surface of a carrier roll, wherein the foil cutter comprises a base plate having an underside and a top side, wherein at least one blade is disposed on the top side of the base plate, and wherein the top side of the base plate comprises at least one region that adjoins blades and is partially or completely surrounded by blades, in which region parts of the flat stock to be punched can become jammed during punching. According to the invention, the foil cutter, in the at least one region that adjoins blades and is partially or completely surrounded by blades, comprises at least one elevation disposed on the top side of the base plate, which elevation is disposed, designed and connected to the foil cutter such that it prevents jamming of the punched flat stock or partial regions of the punched flat stock.
DEVICE FOR DIVERTING A PRODUCT FLOW OF FLAT MATERIAL PIECES BETWEEN A PRODUCTION TRACK AND A DIVERSION TRACK AND AN ENVELOPE PRODUCING MACHINE HAVING SUCH A DEVICE
The invention relates to a device for diverting a product flow of flat material pieces between a production track (P) and a diversion track (U). Said device is further developed in that the product test specimens having great location errors can be removed from the product flow in the course of setup operation of the production machine, such that the risk of product jams, machine damage, and later interruptions in production is minimized. In order to achieve said aim, it is proposed that the device comprises at least two conveyor belts (2,3) disposed at a distance from each other and having an intermediate space, and at least one transport belt (4, 5), disposed such that the flat material pieces can be frictionally clamped between the conveyor belts (2,3) on one side and the at least one transport belt (4, 5) on the other side, and can thereby be transported in a transport direction, wherein at least one deflecting roller (6, 7) deflects the at least one transport belt (4, 5) such that it is guided away from the conveyor belts (2, 3), and wherein a diversion element (8) for diverting the product flow is disposed in the region of the deflecting roller (6, 7) and can be moved between a production position wherein it is located on the side of the conveyor belts (2,3) facing away from the product flow, and a diversion position wherein it bridges the intermediate space between the conveyor belts (2,3) and diverts the product flow away from the conveyor belts (2,3) into the diversion track.
B65H 29/12 - Delivering or advancing articles from machinesAdvancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands
Method for converting a letter envelop production machine from a set-up mode into a normal production mode, wherein a letter envelop means a letter wrapping or so-called shipping pouch, and wherein the letter envelop production machine during the conversion from set-up mode to production mode, continues to operate at least at a base speed so that the movement of the working station into its production setting occurs during the operation of the letter envelop production machine at the base speed and set-up results achieved during the preceding set-up mode are essentially retained for the production mode.
B31B 19/74 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents and having means for effecting auxiliary operations
B31B 19/00 - Machinery characterised by making rectangular envelopes or bags of flat form, i.e. without structural provision at the base for thickness of contents
5.
APPARATUS FOR SELECTIVELY COVERING SUCTION HOLES IN A CIRCUMFERENTIAL SURFACE OF A SUCTION ROLLER FOR TRANSPORTING FLAT PIECES OF MATERIAL OF A GIVEN FORMAT
A description is given of an apparatus for selectively covering suction holes in a circumferential surface of a suction roller for transporting flat pieces of material of a given format, wherein the apparatus comprises a flexible ribbed sheet (1), which has a multitude of raised ribs (2) and grooves (3) respectively running between the ribs, wherein suction passageways (4) that pass through the ribbed sheet are arranged in the ribs. The object is to develop this apparatus in such a way that pieces of flat material of a wide variety of formats can be transported and peeled off from the circumference of the roller with lowest possible costs. To achieve this object, it is proposed to make the arrangement of the suction passageways in the ribbed sheet correspond substantially to the arrangement of the suction holes in the circumferential surface of the suction roller and additionally provide the apparatus with a flexible masking sheet (5) with suction openings (6) passing through it, which are arranged in accordance with the format of the pieces of flat material to be transported, so that when the masking sheet and the ribbed sheet are arranged lying one on top of the other on the circumferential surface of the suction roller a suction effect is only produced in those regions of the circumferential surface in which it is desired, in accordance with the format of the pieces of flat material.
The invention relates to a vacuum roller (1) for transporting a flat material section, wherein the external surface (2) of the vacuum roller (1) comprises suction holes (3) to which suction air can be applied by means of suction air ducts axially extending inside the roller (1). The roller (1) further comprises multiple suction grooves (4) connecting the suction holes and extending in spirals across the external surface (3). According to the invention, the suction grooves (4) are produced by spirally guiding a shaping device along the external surface (2) of the vacuum roller (1), wherein the shaping device produces a suction groove profile when said device is guided along the external surface (2) in the circumferential direction perpendicular to the roller axis (4), the side walls of said suction groove forming an angle of less than 20° with the external surface (2) of the roller (1) in the transition zone to the external surface (2), when seen in a section perpendicular to the direction of extension of the suction groove.
The invention relates to a film cutter arrangement (54, 78, 88, 90), particularly for a cutter roller (10). Punched film cutters (78) for producing cutouts (82) have a cutting edge (58). The film cutter arrangement (54, 88, 90) and the punched film cutters (78) are attached to the lateral surface (22) of the cutter roller (10) magnetically and/or by vacuum. The punched film cutters (78) can be variably positioned relative to the format film cutters (54; 88, 90) in the axial and circumferential directions of the cutter roller (10) by adapter elements (74, 76).
B26D 1/26 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis substantially perpendicular to the line of cut
The invention relates to a pair of embossing rollers for the rotary production of an embossing pattern, comprising an embossing roller (1) and an embossing counter-roller (2) which form a roller gap (3) for leading through the flat material piece, wherein at least one (1) of the two embossing rollers (1, 2) comprises embossing means on the circumference of the roller for producing an embossing pattern and at least one (1) of the two embossing rollers (1, 2) comprises transport means (4) on the circumference of the roller for transporting the flat material piece through the roller gap (3).
The present invention relates to a bearing arrangement for mounting a vacuum roller that can be subjected to suction air in the axial direction and from both sides in a frame. The bearing arrangement according to the invention comprises two bearings, each of which is arranged in a bearing housing. The roller to be mounted comprises at each of its ends one bearing journal which is received by respectively one of the two bearings. According to the invention, the roller is non-displaceably mounted in the axial direction in both bearings relative to the respective bearing so that there is on each side of the roller an essentially constant distance between the front face of the roller, which radially surrounds the respective journal, and the stationarily arranged components which are facing the front face of the roller and subject the front face of the roller to suction air. The functionality as a floating bearing, which is required for compensating thermal expansions of the roller body, is achieved according to the invention by the fact that one of the two bearing housings is arranged in an axially displaceable manner relative to the frame in which the roller is mounted.
The present invention relates to a stationary compressed air supply (1) on a rotating roller (2), which has at least one opening (7) to be pressurized with compressed air at the lateral surface thereof. In the axial region of the opening to be pressurized with compressed air, the roller is surrounded by a stationary pressurizable pressure chamber (11) in the circumferential direction at least in some sections. According to the invention, the pressure supply further has a sealing element (10, 15) that can be moved from an idle position into a sealing position by pressurizing the pressure chamber with compressed air, and from the sealing position into the idle position by relieving the pressure in the pressure chamber to the ambient pressure. For this purpose, the sealing element and the pressure chamber are configured such that when the sealing element is in the idle position no connection exists between the roller and the walls (13) of the pressure chamber, whereas when the sealing element is in the sealing position a pressure-tight connection is present between the walls of the pressure chamber and the roller.
Described is a crossbar of a machine frame for mounting a rotatable cutting roll used for cutting flat pieces or webs of material. Said crossbar comprises connecting means for fastening at least one bearing device used for mounting the cutting roll, or at least one bearing device for mounting the cutting roll is monolithically arranged on the crossbar. The aim of the invention is to develop such a crossbar of a machine frame in such a way that there is as little leakage air as possible when the vacuum system of the cutting roll is on, the suction duct is easier to access, and more structural space is available in the zone of the cutting roll. Said aim is achieved by providing the crossbar with a suction duct for sucking off clippings produced when the cutting roll cuts the flat pieces or webs of material, said suction duct penetrating the crossbar.
The invention relates to an apparatus and a method for forming stacked packs (30, 74) of flat articles (14). Said apparatus comprises a conveying plane (18) on which the flat articles (14) are conveyed by means of at least one conveyor belt (16) such that a staggered flow (70) is formed. When the stacked packs (30, 74) are separated, the staggered flow (70) is lifted from the at least one conveyor belt (16), non-positively rests against at least one stop (56), or leans on a front side (59) of the at least one stop (56).
The present invention relates to a conveyor system (1) having at least one revolving conveyor belt (3, 4) on the surface of which products to be conveyed can be conveyed, and to a process therefore. According to the invention the conveyor system comprises a negative pressure contacting system (5, 14) with which at least one edge region (3', 4') of the conveyor belt at least in the section of the revolving belt in which products are conveyed by the conveyor belt is brought into contact with a substantially planar surface (6), by applying negative pressure to the edge region of the belt such that the entire surface of the conveyor belt forms a planar conveying surface (T).
B65G 21/20 - Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
B65G 15/58 - Belts or like endless load-carriers with means for holding or retaining the loads in fixed position, e.g. magnetic
The invention relates in general to a device (1) for transferring a torque onto a shaft (121). Particularly, the device is axially displaceable on the shaft in an essentially play-free state with regard to the rotation of the shaft. To this end, the device according to the invention comprises a dog carrier (2) disposed on the shaft in an axially displaceable fashion and having at least two dogs (4), means (12, 16) for transferring a torque onto the dog carrier, and at least two dog regions (5) disposed on the shaft. The dog regions extend on the shaft in the axial direction over an adjustment region (E) and engage in the dog regions in a positive fashion with regard to a rotation of the shaft. In addition, play adjustment means (6, 7a, 7b) are present, by means of which the play between the dogs and the dog regions may be adjusted. Particularly, the play is adjustable such that an axial displacement of the dogs in the adjustment region of the dog regions on the shaft is still possible.
B41F 13/008 - Mechanical features of drives, e.g. gears, clutches
B41F 13/14 - Registering devices with means for displacing the cylinders
F16D 3/06 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
15.
APPARATUS AND METHOD FOR DRAWING IN FLAT MATERIAL PIECES AND IN-REGISTER TRANSPORTATION OF THE FLAT MATERIAL PIECES
An apparatus is described for drawing in flat material pieces and for in-register transportation of the flat material pieces to a work station (b), said apparatus comprising a gripper device (2) for gripping the front edge of a flat material piece and accelerating the flat material piece, and at least one sheet transfer roller (3) for transferring the accelerated flat material piece from the gripper device (2). The sheet transfer roller comprises at least one roller gripper (4), which is effective on the circumference of the same, for gripping the accelerated flat material piece. Said apparatus is intended to be developed in such a manner that it permits an in-register drawing in of flat material pieces, in particular sheets, onto a suction belt (7) of the rotary machine, said suction belt transporting the flat material pieces onwards. For this purpose, the sheet transfer roller (3), in a part of the circumference thereof which, in the direction of rotation thereof, adjoins behind the roller gripper, is provided with a plurality of suction holes (5), and a suction-belt transporting device is provided with at least one suction belt (7), wherein the transition of the roller gripper (4) from the closed position to the open position and the application of suction air to the suction holes can be controlled.
The invention relates to a transportation apparatus (1) with a transportation belt (4), to which suction air can be applied, for transporting flat material pieces between two processing and/or transportation stations (2, 39). According to the invention, the transportation apparatus can be moved to and fro between an operating position for the transportation of the flat material pieces and a standby position for ensuring free access to at least one of the processing and/or transportation stations.
The method relates to a device and a method for depositing continually vertically stacked flat material pieces. In addition to a support surface (2) that is movable back and forth between a receiving position and a delivery position, wherein said support surface is disposed in the receiving position such that it receives the flat material pieces to be stacked in the form of at least one substantially vertical stack, the device also comprises an auxiliary support surface (3). The auxiliary support surface (3) is movable back and forth between a rest position and a working position, wherein said auxiliary support surface is disposed in the working position so as to receive the flat material pieces to be stacked in the form of at least one substantially vertical stack instead of the support surface.
The invention describes a process for producing sheet-forming flat material blanks from individuated flat material sheets using a rotary punch which has an acceleration station for accelerating the flat material sheets to a cycle speed and also at least one rotational work station for carrying out steps for producing the flat material blanks on the flat material sheets. This process should be developed in such a way that the flat material blanks can be produced independently of the format of the flat material sheets and at the same time the probability of register inaccuracy occurring between the acceleration station and the work station is minimized. In order to solve this problem, the invention proposes transporting the flat material sheets from the acceleration station to the work station exclusively using at least one suction belt on which the flat material sheets are held by means of suction air.
The invention relates to a device for providing individual intermediate layers (2) for a palletizing robot which picks up the individual intermediate layer during palletizing and arranges it between specific layers of objects to be palletized. The aim of the device is to allow the palletizing robot to pick up at any time, if required, an already separated intermediate layer without carrying with it other intermediate layers adhering at the bottom side of this intermediate layer. In order to achieve this aim, a vertically displaceable receiving device (4), which can receive the top intermediate layer of a stack (5) of intermediate layers in such a manner that at least a partial region of the top intermediate layer is lifted from the stack, and a separating device (6), which can be displaced between the top intermediate layer and the remaining stack, are provided, the separating device separating the top intermediate layer from the stack in such a manner that it can be picked up in the separated state by a palletizing robot after having been released by the receiving device.
The invention relates to a method for marking a pallet (5) that is loaded with stacked material (3). In said method, a marking element comprising data that is relevant for marking is attached to an intermediate layer (8) which is introduced between two layers of stacked material (3) when the pallet (5) is loaded. According to the invention, the marking element is attached to the intermediate layer (8) by means of a positive connection created by deforming the intermediate layer (8) and the marking element, without using any connecting means. In order to do so, the device (10) according to the invention comprises adequate fastening means (12).
The invention relates to a method and a device for discharging a discontinuous product flow comprising flat material pieces from a machine housing. According to the invention, the flat material pieces that are to be discharged are arranged within the machine housing in the form of a first stack with the help of corresponding intermediate stacking means in a first step. A staggered flow which is conveyed out of the machine housing is then formed from said first stack with the help of corresponding staggering means. The flat material pieces discharged with the staggered flow are then disposed outside the machine housing in the form of a second stack with the help of stacking means.
The present invention relates to a cutting and/or embossing station (1), comprising a rotatable tool roll (2), on the surface of which a plurality of machining tools (20) are disposed and which forms a cutting and/or embossing gap (6) together with an associated mating roll (4). A material web (8) can be fed through the gap, wherein the tool roll (2) and the mating roll (4) are rotatably mounted at the ends in a support frame (14). Even during an ongoing production process, an adaptation of the width of the cutting and/or embossing gap to changing boundary conditions or specifications of the production processes is to be made possible in a simple way. For this purpose, according to the invention an electrically controlled positioning element (22) is associated with at least one of the rolls in the region of the two bearings. The distance of the rotational axis (26, 28) of said roll to the rotational axis (26, 28) of the other roll can be changed via said positioning element. The electrically controlled positioning element is a piezoelectric actuator.
B26D 1/22 - Cutting through work characterised by the nature or movement of the cutting memberApparatus or machines thereforCutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with a movable member, e.g. a roller
B26D 7/26 - Means for mounting or adjusting the cutting memberMeans for adjusting the stroke of the cutting member
An apparatus is described for spatially orienting blanks having a length which is measured in the transport direction, which apparatus has at least one stop roll body (3a), which can rotate about an axis and has at least one stop element (7a), and a driver transport device for driving the blanks relative to the stop roll body, wherein at least one driver roller (5), by means of which the blanks can be pressed against the driver transport device, and at least one roll body roller (8a), by means of which the blanks can be pressed against the stop roll body, are provided, and wherein the roll body roller is prestressed in contact with the stop roll body. This apparatus is to be developed in such a way that no vacuum is required and at the same time the probability of a malfunction in the form of a blank jam and the probability of sliding tracks or the like on the blanks are minimized. In order to achieve this object, it is proposed to configure the driver transport device as a transport belt device which has at least one endlessly circulating transport belt (6), and to mount the driver roller in such a way that the path spacing between the roll body roller and the driver roller can be set to the length of the blanks which are to be oriented.
A device for cutting out flat material blanks from flat material sheets is described which has a cutting roll and a mating roll interacting with the cutting roll, the cutting roll and the mating roll forming a roll gap into which the flat material sheets can be inserted for cutting out the flat material blanks, wherein a residual material is produced. This device is to be developed in such a way that, firstly, it involves the lowest possible outlay in terms of equipment and, secondly, it is not restricted in its application to flat material sheets having a certain minimum length. To achieve this object, it is proposed to design both the cutting roll and the mating roll in each case as a suction roll having a lateral surface which has a multiplicity of suction air openings, wherein the suction air is admitted to the cutting roll and the mating roll in such a way that, directly after the cutting-out, the flat material blanks can be transported further on the lateral surface of the cutting or mating roll and the residual material can be transported further on the lateral surface of the mating or cutting roll.
patents