An industrial drum (1) for the treatment of leathers comprising a load-bearing framework (2) adapted to rest on a reference surface of an industrial plant, and a hollow rotating barrel (3) coupled to the load-bearing frame (2) and adapted to receive the leathers to be treated, defining a symmetry axis (X) around which the hollow rotating barrel (3) is rotated by drive means associated with the load-bearing framework (2) and having a through opening (4) at which a shaped shutter (5) is rotatably coupled to the hollow rotating barrel (3) and cooperates with first actuation means adapted to arrange it between a first position, in which the shaped shutter (5) hermetically closes the through opening (4), and a second position in which the shaped shutter (5) opens at least partly the through opening (4) for loading into the inner volume (6) of the hollow rotating barrel (3) the leathers to be treated and/or discharging from the inner volume (6) of the hollow rotating barrel (3) the treated leathers. In particular, the industrial drum (1) comprises lighting means (7), electrically connected to an electric power source and contained inside the hollow rotating barrel (3), deactivated when the shaped shutter (5) takes the first position and activated when the shaped shutter (5) takes the second position.
C14C 15/00 - Appareillage pour le traitement chimique ou le lavage des peaux ou des cuirs
D06B 5/26 - Opérations forçant les liquides, gaz ou vapeurs à traverser les matières textiles en vue d'effectuer un traitement, p. ex. lavage, teinture, blanchiment, encollage, imprégnation à traverser des matières de longueur finie en utilisant la force centrifuge
Process for drying and/or conditioning leathers including, in order, the operations of coupling to the side faces of a plurality of support frames (1) leathers to be treated by means of drying and/or conditioning in an operating tunnel (2), forming a plurality of load support frames; placing the load support frames along a vertical plane and automatically advancing them one after the other towards the operating tunnel (2); automatically introducing into the operating tunnel (2), through an inlet mouth (3) thereof, progressively one by one, the load support frames, arranged along to a vertical plane; progressively subjecting the leathers loaded on the support frames (1) to the drying and/or conditioning treatment while the support frames automatically advance in the operating tunnel (2) along a longitudinal direction (X), according to a predetermined processing recipe; and, due to the thrust exerted along such longitudinal direction (X) by each of the load support frames progressively entering the operating tunnel (2), leading out of the operating tunnel (2), through an outlet mouth (4) opposite to the inlet mouth (3), progressively one by one, the support frames (1) loaded with the yet treated leathers. In detail, the process includes, in the order, the operations of automatically and seamlessly advancing, downstream of the outlet mouth (4) of the operating tunnel (2), a main group of support frames loaded with leathers yet treated, passing through a loading and unloading station (5) of the leathers external to the operating tunnel (2) and accessible to the operators; and of automatically continuing to treat the leathers loaded on the support frames (1 ) and leading the latter out of the operating tunnel (2) for those load support frames still present inside the operating tunnel (2) due to the operation of automatically re- introducing into the operating tunnel (2), through the inlet mouth (3), progressively one by one, and arranged along to a vertical plane, the support frames belonging to the main group and loaded with yet treated leathers, without the latter being again subjected to the drying and/or conditioning treatment inside the operating tunnel (2).
A rotary booth (1; 50) for treating leathers by spraying comprising a load-bearing structure (2) having a loading area (3) in which a leather (P) to be subjected to a spraying treatment is conducted inside the load-bearing structure (2), and a discharge area (4) in which the leather (P) just treated is conducted outside the load-bearing structure (2), a conveyor belt (5; 54) mainly housed in the load-bearing structure (2) and adapted to advance along a linear direction (W) the leather (P) received on an upper surface (5a) of the conveyor belt (5; 54), a rotating unit (6) coupled inside the load¬ bearing structure (2) and provided with spraying means (7; 56) adapted to deposit in spray form on the leather (P), advancing along the linear direction (W) on the conveyor belt (5; 54), at least one painting mixture while the spraying means (7; 56) follow a closed annular trajectory (T) under the rotation of the rotating unit (7; 56), so that the spraying means (7; 56) take a working condition along two primary circumferential arcs (8, 9) belonging to the closed annular trajectory (T) and defined directly above the conveyor belt (5; 54), and a resting condition along two secondary circumference arcs (10, 11), connecting the primary circumference arcs (8, 9) and belonging to the closed annular trajectory (T), defined externally and laterally to the conveyor belt (5; 54), a collection plane (12; 61), arranged below the spraying means (7; 56) inside the load-bearing structure (2), provided with an upper face (12c) adapted to receive by falling the particulate (L) of the painting mixture and suction means (13; 62) operatively connected to the load-bearing structure (2) and adapted to capture by means of an airflow the fumes (Q) produced by the spraying treatment inside the load-bearing structure (2). In particular, the suction means (12; 61) suck at the spraying zone, in the lower part of the load-bearing structure (2) cooperating directly with the primary circumferential arcs (8, 9) belonging to the closed annular trajectory (T) and along which the spraying means (7; 56) take the working condition, dispensing the painting mixture on the leather (P) advancing on the conveyor belt (5; 54).
B05B 14/00 - Aménagements pour collecter, réutiliser ou éliminer le matériau de pulvérisation excédentaire
B05B 13/00 - Machines ou installations pour appliquer des liquides ou d'autres matériaux fluides sur des surfaces d'objets ou de matériaux par pulvérisation, non couverts par les groupes
4.
INDUSTRIAL LEATHER MILLING PLANT WITH AN IMPROVED ENVIRONMENTAL IMPACT
An industrial milling plant for tannery leathers (1; 50; 100; 150) with an improved environmental impact comprising a milling drum (2; 152) comprising a hollow body (3; 153), adapted to be rotated about a symmetry axis (X) through motorization means and inside which the leathers to be treated are received, a closed circuit (4; 54; 104; 154), operatively connected to the hollow body (3; 153) of the milling drum (2; 152) for letting air (A) in and from the hollow body (3; 153) for treating the leathers, a dust collector (5; 55; 105) arranged outside and downstream of the hollow body (3; 153) of the milling drum (2; 152) following, as a reference direction, the path of the air (A) inside the closed circuit (4; 54; 104; 154), forced ventilation means (6; 56; 106), arranged downstream the dust collector (5; 55; 105) again following, as a reference direction, the path of the air (A) inside the closed circuit (4; 54; 104; 154), at least one exchange valve (7; 57; 107) arranged downstream the forced ventilation means (6; 56; 106) following, as a reference direction, the path of the air (A) inside the closed circuit (4; 54), and one or more electric resistors (8; 58; 108; 158), arranged downstream said exchange valve (7; 57; 107), again following, as a reference direction, the path of the air (A) inside the closed circuit (4; 54; 104; 154). In particular, the industrial leather milling plant (1; 50; 100; 150) of the invention comprises additional purification means (9; 59; 109; 159) of the air (A), arranged outside the hollow body (3; 153) of the milling drum (2; 152), in line on the closed circuit (4; 54; 104; 154) and externally downstream the dust collector (5; 55; 105), operatively connected to actuation means which activate the additional purification means (9; 59; 109; 159) to at least reduce the unwholesome odor accompanying the air (A) coming from the milling drum (2; 152).
C14B 1/42 - Corroyage ou assouplissement des peaux ou du cuir, p. ex. au moyen de machines à palissonner, à étirer ou à dérayer ou bien par foulage à sec au moyen d'un tambour rotatif avec lames radiales
An industrial rotary booth (1 ) for the spraying treatment of the tannery leathers, comprising a supporting frame (2) which has an inlet (3), through which a leather (P) is carried into the box-like shell (2), which leather is subjected to a spraying treatment while lying on the upper surface of a conveyor belt adapted to be at least partially received inside said supporting frame (2) and to be advanced along a predetermined linear direction (W), and an outlet through which the leather (P) just treated is carried outside the box-like shell (2), and spraying means coupled to the supporting frame (2) inside which they are arranged, adapted to deposit a fluid covering mixture in nebulized form on said leather (P) advancing along the linear direction (W) while said spraying means are placed in rotation along a closed annular trajectory (T), so that the spraying means take the working condition at two main circumference arcs (4, 5) belonging to the closed annular trajectory (T) and lying above the conveyor belt, and the rest condition at two auxiliary circumference arcs (6, 7), which are distinct from the main circumference arcs (4, 5), belonging to the closed annular trajectory (T) and lying sideways on the outside of said conveyor belt. In particular, the radius of curvature (R1) of the main circumference arcs (4, 5) and the radius of curvature (R2) of the auxiliary circumference arcs (6, 7) take finite values different from zero and different from each one another.
B05B 13/04 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces les têtes de pulvérisation étant déplacées au cours de l'opération
B05B 16/40 - Éléments de construction spécialement adaptés à cet effet, p. ex. planchers, parois ou toits
An industrial plant (1; 50) for milling leathers comprising a support framework (2; 51 ) resting on a reference surface (R) of an industrial factory, a rotatable drum (3; 52) coupled with the support framework (2; 51 ) and comprising a hollow body (4; 53) suitable to receive the leathers to be treated by milling, defining a symmetry axis (X) around which the hollow body (4; 53) is put in rotation by motorization means associated with the support framework (2; 51 ) and having a through opening (5; 54) at which a shaped shutter (6) is revolvingly coupled with the hollow body (4; 53) and cooperates with actuation means suitable to place it between a first position, in which the shaped shutter (6) tightly closes the through opening (5; 54), and a second position in which the shaped shutter (6) at least partly opens the through opening (5; 54) for loading into the inner volume (7) of the hollow body (4; 53) of the leathers to be treated and/or discharging from the inner volume (7) of the hollow body (4; 53) of the treated leathers, and a motorized conveyor belt (8; 57), facing and underlying the hollow body (4; 53) and which receives the treated leathers, coming by fall from the hollow body (4; 53), when the shaped shutter (6) takes the second position and which conveys the treated leathers away from the hollow body (4; 53). In particular, in transversal section made in the longitudinal development direction of the conveyor belt (8; 57), the conveyor belt (8; 57) itself presents a curved profile (8') having concavity facing towards the hollow body (4; 53) at least in the linear portion (L) of the conveyor belt (8; 57) on which the treated leathers fall, coming out from the hollow body (4; 53) of the rotatable drum (3; 52) through the through opening (5; 54).
A method for adjusting the formula parameters of a drumming cycle of leathers comprising the operations introducing into a cylindrical barrel, belonging to a tannery rotary drum, a plurality of leathers to be drummed in a given drumming cycle, and setting a working temperature, or set point temperature (Ti), at which the drumming cycle of the leathers is performed. In particular, the method of the invention it also comprises the further operations of initially detecting the effective temperature (Te) inside the cylindrical barrel of the rotary drum, performed before starting the drumming cycle by rotating the cylindrical barrel around a linear axis and after the operation of introducing the leathers into the cylindrical barrel, and subsequently setting the initial time interval (tr) of the drumming cycle needed to pass inside the cylindrical barrel from the effective temperature (Te) to the working temperature (Ti), according to the effective temperature (Te) detected before starting the rotation of the cylindrical barrel around the linear axis.
C14B 1/40 - Corroyage ou assouplissement des peaux ou du cuir, p. ex. au moyen de machines à palissonner, à étirer ou à dérayer ou bien par foulage à sec
C14B 1/42 - Corroyage ou assouplissement des peaux ou du cuir, p. ex. au moyen de machines à palissonner, à étirer ou à dérayer ou bien par foulage à sec au moyen d'un tambour rotatif avec lames radiales
An improved drum for the milling treatment of the leathers comprising a bearing frame (2) resting on a reference surface of an industrial factory, a movable hollow body (3), coupled with the bearing frame (2) and made of at least partly thermally conductive material, receiving in its inner volume (4) the leathers to be treated by milling, motorization means operatively connected with the movable hollow body (3) in such a way as to place it in rotation around a linear axis (X) when the leathers must be treated in the inner volume (4) of the hollow body (3), an outer casing (5) coupled with the bearing frame (2) and surrounding the movable hollow body (3) with which it defines an annular space (6). In particular, the improved drum (1) comprises a conditioning circuit (7) cooperating with the movable hollow body (3) through air (A1) which the conditioning circuit (7) conveys within the annular space (6) at a given temperature, varied by adjustment means depending on the contingent needs of treatment of the leathers inside the hollow body (3) in rotation, so that the outer wall (3a) of the hollow body (3) is kept at a predefined temperature, deemed to be adequate for each phase of the treatment of the leathers in the hollow body (3), and a structural assembly (8) formed by the outer casing (5) and the movable hollow body (3) defines a heat exchanger in which the air (A1) which is conveyed into the annular space (6) and flows around the outer wall (3a) of the hollow body (3) stands for a first one of the heat exchange fluids and is at least hot in the initial stage of the treatment of the leathers, in order to contribute to the heating of the leathers in the inner volume (4) of the hollow body (3), and cold in the advanced stage of the treatment of the leathers in order to dissipate the heat in excess developed by friction by the leathers moving in the inner volume (4) of the hollow body (3).
C14B 1/40 - Corroyage ou assouplissement des peaux ou du cuir, p. ex. au moyen de machines à palissonner, à étirer ou à dérayer ou bien par foulage à sec
A support frame (1) of leathers to be dried (or desiccated) and/or conditioned comprising a load bearing perimetrical structure (2) suitable to slide on air guides and to be folded, a flat metallic mesh (3) of the perforated sheet type, placed in the intermediate space (or room 4) defined by the load bearing perimetrical structure (2) and provided with two side faces (3a, 3b) opposite each other, each of which suitable to support one or more leathers to be dried and/or conditioned blocked to the flat metallic mesh (3) by means of pliers, and coupling means (5), through which the flat metallic mesh (3) is stably coupled with the load bearing perimetrical structure (2). In particular, the coupling means (5) include mechanical rapid hooking/engagement means (6) arranged in correspondence of at least a portion of the outer perimetrical edge (3c) of said flat metallic mesh (3) and of at least a portion of the inner perimetrical edge (2c) of said load bearing perimetrical structure (2).
A47B 57/16 - Meubles à tiroirs, étagères ou rayonnages caractérisés par la possibilité de régler les rayons ou les cloisons comprenant des moyens pour régler la hauteur des rayons consistant en crochets agissant en liaison avec des ouvertures
A spray booth (1) for leathers treatment comprising a bearing frame (2) which rests on a reference surface and in which a spraying area (3) is defined where leathers treatment takes place by means of spraying in a nebulized form of natural and/or chemical products, a support structure (4) associated with said bearing framework (2) and suitable to receive the leathers to be treated by means of said spraying of natural and/or chemical products, an operating group (5) which in turn includes a movable element (6) coupled with the bearing framework (2) and facing the spraying area (3), a distribution shaft (7) removably coupled with the movable element (6) through fixing means (8) and defining a vertical longitudinal axis (Y), a plurality of support arms (9), each of which connected with the movable element (6) and provided with dispensing means (10) which spray in a nebulized form the natural and/or chemical products on the leathers, the distribution shaft (7) communicating through hydraulic connection means (11) with the dispensing means (10) and with containment means housing the natural and/or chemical to products be sprayed on the leathers themselves. In particular, the fixing means (8) comprise quick coupling means (12) which make the distribution shaft (7) easily and automatically removable from the spraying area (3), in such a way as to define for the distribution shaft (7) an applicative position in which the distribution shaft (7) is stably coupled with the bearing framework (2) to exert its distributing function, and a non-applicative position in which the distribution shaft (7) is separated from the bearing framework (2) and the support arms (9) and extracted from the spraying area (3) in such a way as to be subjected to maintenance, repair and/or substitution.
C14B 17/00 - Parties constitutives des appareils ou machines pour la fabrication ou le traitement des peaux, du cuir ou des fourrures
B05B 13/02 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces
B05B 13/04 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces les têtes de pulvérisation étant déplacées au cours de l'opération
A leathers drying and/or conditioning plant (1) comprising an operating tunnel which mainly develops along a linear direction and is provided with air conditioning devices suitable to operate on the leathers in such a way as to dry and/or condition them according to pre-defined treatment cycles, a plurality of support frames (2; 52; 102), each of which is suitable to receive on at least one of the side faces (2a, 2b) at least one leather in order to keep it in the spread position, actuation means operatively connected with the support frames (2; 52; 102) and suitable to be operated in such a way as to extend the leathers to a nominal tension value set by the operator, moving means (3), operatively connected with the support frames (2; 52; 102) to convey them along the aforesaid linear direction according to a predetermined speed within the operating tunnel, in order to allow drying and/or conditioning of the leathers, and outside the operating tunnel in order to allow discharge of the leathers dried and/or conditioned in a processing cycle and load of the leathers to be dried and/or conditioned in the next processing cycle, detection means, operatively connected with the actuation means and suitable to measure the tension value of the fibres of the leathers during a processing cycle, and adjustment means (4; 54; 104), operatively associated with the actuation means and cooperating with the actuation means according to the difference in tension between the tension value measured by the detection means and the nominal tension value so as to keep the leathers tensioned substantially to the nominal tension value. In particular, the actuation means and the detection means are incorporated in elastically yielding means (5; 55; 105) coupled with each of the support frames (2; 52; 102) together with the adjustment means (4; 54; 104) with which cooperate in such a way as to obtain a spontaneous continuous adjustment of the actual tension value which each of the leathers secured on the support frames (2; 52; 102) is subjected to during a processing cycle of the leathers, keeping the actual tension value of the leathers themselves constantly to the nominal tension value during such a processing cycle.
Leathers, particularly tannery leathers, drying and/or conditioning method comprising the operations of establishing a prefixed standard expansion value of the leathers, loading at least one leather on at least one side face (4c, 4d) of support frames (4), conveying the support frames (4), provided with at least one leather, towards an operative tunnel (2) of a drying and/or conditioning plant (1), operating actuation means (5) in order to mechanically work on the support frames (4) in such a way as to stretch the leathers to the prefixed standard expansion value. In particular, the method comprises a step of controlling the level of expansion of the leathers which includes the operations of establishing a predetermined nominal tension value of the leathers, detecting the tension value of the fibres of the leathers expanded following the operation of the actuation means (5) on the support frames (4) at the operative tunnel (2), comparing the measured tension value with the predetermined nominal tension value, measuring tension deviation thereof and adjusting operation of the actuation means depending on such a measured tension deviation in such a way so as to keep the leathers spread and/or tensioned substantially to the predetermined nominal tension value.
A method for an external treatment of tannery leathers (10) comprising the steps of positioning a leather (10) on a conveyor belt (12), which is able to drag the leather (10) within a spray booth, and of spraying a mixture, such as paint or color, onto the leather (10), inside the booth, by means of a plurality of spraying guns installed on respective arms of a rotating carousel. The spraying guns rotate along a prefixed circumference (C) during the traveling of the leather (10) on the conveyor belt (12) and each spraying gun is on in correspondence of two arcs (13, 14) of said circumference (C) during a complete rotation of the gun along said circumference (C). In particular, in correspondence of at least one portion of at least one of said arcs (13, 14) of circumference (C), the pressure of the sprayed mixture is increased, in order to obtain a highly uniform deposition of said mixture on the leather (10), as from the side edges of the leather (10) lying on the conveyor belt (12) up to a central area of said leather (10).
B05B 12/14 - Aménagements de commande de la distributionAménagements de réglage de l’aire de pulvérisation pour fournir à un orifice de pulvérisation unique, un liquide ou un autre matériau fluide choisi parmi plusieurs
B05B 13/04 - Moyens pour supporter l'ouvrageDisposition ou assemblage des têtes de pulvérisationAdaptation ou disposition des moyens pour entraîner des pièces les têtes de pulvérisation étant déplacées au cours de l'opération
B05B 12/02 - Aménagements de commande de la distributionAménagements de réglage de l’aire de pulvérisation pour la commande de la durée ou de la succession des distributions
B05B 12/12 - Aménagements de commande de la distributionAménagements de réglage de l’aire de pulvérisation sensibles à l'état du liquide ou d'un autre matériau fluide expulsé, du milieu ambiant ou de la cible sensibles à l'état du milieu ambiant ou de la cible, p. ex. à l'humidité, à la température
An industrial plant for drying and/or conditioning (1) flexible laminar surfaces comprising an operating tunnel (2) mainly developing according to a linear direction (Z) and provided with air conditioning devices (3) and/or traction organs suitable to act on the flexible laminar surfaces so as to dry them and/or spread them according to predetermined treatment and/or tensioning cycles, a plurality of support frames (4), each of which suitable to receive at least one of the flexible laminar surfaces so as to keep it in a spread and vertical position, moving means (5), operatively connected with the support frames (4) in order to convey them along the linear direction (Z) according to a predefined speed within the operative tunnel (2), to allow drying and/or tensioning of the flexible laminar surfaces, and outside the operative tunnel (2) to allow discharging of the flexible laminar surfaces dried and/or tensioned in a working cycle and loading of the flexible laminar surfaces to be dried and/or tensioned in the following processing cycle. In particular, the industrial drying plant comprises a buffer loading station (6), arranged upstream the operative tunnel (2) with which it communicates, suitable to integrally receive a pre-established group (7) of the support frames (4) before the pre-established group (7) itself of support frames (4) is transferred in bulk within the operative tunnel (2) by the moving means (5), in such a way that the support frames (4) of the pre-established group (7) simultaneously reach the inside of the operating tunnel (2) and the flexible laminar surfaces supported by the support frames (4) of the pre-established group (7) are simultaneously subjected to the processing of the air conditioning devices.
F26B 15/14 - Machines ou appareils à mouvement progressif pour le séchage d'objetsMachines ou appareils à mouvement progressif, pour le séchage de lots d'un matériau de forme compacte avec un mouvement suivant une trajectoire composée d'une ou de plusieurs lignes droites, p. ex. combinée les lignes étant toutes horizontales ou légèrement inclinées les objets ou les lots de matériau étant portés par des plateaux ou des râteliers
F26B 25/00 - Parties constitutives d'application générale non couvertes par un des groupes ou
A method for treating flexible laminar surfaces in a plant (1) for their tanning, re -tanning, dyeing. and/or milling comprising the operations of introducing into a rotating drum (3) a plurality of flexible laminar surfaces, moving the drum (3) in order to carry out the working of the flexible laminar surfaces. The method comprises the operations of detecting an operating parameter of the plant (1), comparing the detected value of the operating parameter with a predetermined nominal value and stopping the movement of the rotating drum (3) if the difference between such a detected value of the operating parameter and the nominal value is greater than 0.
An improved survey device (1), particularly for dust removers of flexible laminar surfaces treatment plants, comprising a measuring instrument (2) suitable to be associated with an operational area for measuring a prefixed parameter, and an actuator member (3), operatively connected with the measuring instrument (2) in order to define for the measuring instrument (2) itself an operating position, in which the measuring instrument (2) is integrated into the operational area to determine the value of the prefixed parameter, and a rest position in which the measuring instrument (2) is separated and isolated from the operational area.
C14B 1/40 - Corroyage ou assouplissement des peaux ou du cuir, p. ex. au moyen de machines à palissonner, à étirer ou à dérayer ou bien par foulage à sec
C14B 17/14 - Dispositifs auxiliaires pour machines à travailler le cuir, p. ex. dispositifs d'aiguisage des lames de cylindres ou dispositifs dépoussièreurs combinés avec les machines
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
02 - Couleurs, vernis, laques
04 - Huiles et graisses industrielles; lubrifiants; combustibles
07 - Machines et machines-outils
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
18 - Cuir et imitations du cuir
Produits et services
Produits chimiques pour le travail de peaux. Couleurs pour le travail de peaux. Graisses pour le travail de peaux. Machines pour le travail de peaux; installations pour le
travail de peaux, à savoir foulons, vaporisateurs de
couleurs. Dispositifs de contrôle de microclimat à l'intérieur des
machines pour le travail de peaux. Installations pour le travail de peaux, à savoir séchoirs à
sec. Peaux.
