The present invention relates to a mould (10) for producing footwear (1) by means of direct injection onto the upper (2) of a sole (3), comprising a tread (5) and a midsole (4), wherein the midsole (4) is composed of a first layer (6) and a second layer (7). The mould (10) comprises a base (12), a pair of first half-rings (14), a pair of second half-rings (16), a first cover (18), a second cover (20) and a mould last (22). In accordance with the invention the mould (10) comprises gripping means (24) designed to fix selectively the first half-rings (14) to the base (12) or to the second half-rings (16). The present invention also relates to a method for producing footwear (1) using said mould (10).
B29D 35/14 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage des parties multicouches
B29D 35/08 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation comportant des parties multicouches
Plastics moulding machines; Plastics injection molding machines; machines, in relation to the following fields: Production of footwear; Moulds [parts of machines]; Moulds for moulding plastics products [parts of machines]; Moulds for die-casting [parts of machines]; Moulds for forging metal products [parts of machines]; Chill moulds [machine parts]; Embossing machines; Handling machines, automatic [manipulators]; Industrial robots.
The present invention relates to a method for the production of plastic footwear (10; 100) of the “full plastic” type by means of moulding using a polyurethane mixture (M; P). The method comprises the steps of: —providing a mould (20) having a mould cavity (22) defined by at least two impressions (28, 30) and designed to receive a shoe last (24) so as to define, when the mould (20) is closed, an interspace (26) having the shape and dimensions of the plastic footwear (10; 100) to be produced; —spraying a polyurethane mixture (M, P) onto said at least two impressions (28, 30) of the mould cavity (22); —inserting the shoe last (24) inside said mould cavity (22); —closing the mould cavity (22) so that the sprayed polyurethane mixture (M, P) occupies said interspace (26); —opening the mould (20), once at least the demoulding time (td) for the sprayed polyurethane mixture (M, P) has lapsed, such that the sprayed polyurethane mixture (M, P) has solidified inside the interspace (26) forming said plastic footwear (10, 100); —extracting the shoe last (24) from the mould cavity (22); —removing the plastic footwear (10, 100) from the shoe last (24).
B29C 41/20 - Façonnage par revêtement d'un moule, noyau ou autre support, c.-à-d. par dépôt de la matière à mouler et démoulage de l'objet forméAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage autour d'inserts ou sur des objets à recouvrir
B29C 43/18 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
B29D 35/04 - Fabrication de chaussures fabriquées d'une seule pièce en utilisant une technique de moulage, p. ex. moulage par injection ou par coulée comportant des parties multicouches
B29K 75/00 - Utilisation de polyurées ou de polyuréthanes comme matière de moulage
A mould for producing footwear by direct injection onto an upper of a sole, including a tread and a midsole, wherein the midsole is composed of a first layer and a second layer. The mould includes a base, a pair of first half-rings, a lid, a pair of second half-rings and a mould last. The first half-rings are designed to be arranged close together such that they abut against the base and against the lid, so as to form a first mould cavity for moulding the first layer (6) of the midsole. While the first half-rings are abutting against the base, the second half-rings are designed to be arranged close together, such that they lie over the half-rings and abut against the upper, fitted onto the mould last, so as to form a second mould cavity for moulding the second layer of the midsole. The first half-rings are provided with guiding means so that they can be moved away from and towards each other and rotate about an axis of rotation. Also a method for producing footwear by direct injection onto an upper, which may be performed by means of the mould.
A43B 13/12 - Semelles à plusieurs couches de matériaux différents
B29C 45/16 - Fabrication d'objets multicouches ou polychromes
B29D 35/14 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage des parties multicouches
B29L 31/50 - Chaussures ou leurs parties constitutives
B29D 35/06 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation
B29D 35/08 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation comportant des parties multicouches
The present invention relates to a mould (10) for producing footwear (1) by means of direct injection onto the upper (2) of a sole (3), comprising a tread (5) and a midsole (4), wherein the midsole (4) is composed of a first layer (6) and a second layer (7). The mould (10) comprises a base (12), a pair of first half-rings (14), a pair of second half-rings (16), a first cover (18), a second cover (20) and a mould last (22). In accordance with the invention the mould (10) comprises gripping means (24) designed to fix selectively the first half-rings (14) to the base (12) or to the second half-rings (16). The present invention also relates to a method for producing footwear (1) using said mould (10).
B29D 35/08 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation comportant des parties multicouches
B29D 35/12 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage
B29D 35/14 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage des parties multicouches
The present invention relates to a mould (10) for producing footwear (1) by direct injection onto an upper (2) of a sole (3), comprising a tread (5) and a midsole (4), wherein the midsole (4) is composed of a first layer (6) and a second layer (7). The mould (10) comprises a base (12), a pair of first half-rings (16), a lid (18), a pair of second half-rings (20) and a mould last (22). The first half-rings (16) are designed to be arranged close together such that they abut against the base (12) and against the lid (18), so as to form a first mould cavity for moulding the first layer (6) of the midsole (4). While the first half-rings (16) are abutting against the base (12), the second half-rings (20) are designed to be arranged close together, such that they lie over the half-rings (16) and abut against the upper (2), fitted onto the mould last (22), so as to form a second mould cavity for moulding the second layer (7) of the midsole (4). In accordance with the invention the first half-rings (16) are provided with guiding means (24) so that they can be moved away from and towards each other and rotate about an axis of rotation (C). The invention also relates to a method for producing footwear by direct injection onto an upper, which may be performed by means of the mould according to the invention.
B29D 35/06 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation
B29D 35/08 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation comportant des parties multicouches
B29D 35/10 - Fabrication de chaussures comportant des semelles préformées ou des talons préformés réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. par alimentation ou par injection de la matière plastique entre les différentes parties à joindre
A43B 13/12 - Semelles à plusieurs couches de matériaux différents
B29D 35/14 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage des parties multicouches
The present invention relates to a method for the production of plastic footwear (10; 100) of the "full plastic" type by means of moulding using a polyurethane mixture (M; P). The method comprises the steps of: - providing a mould (20) having a mould cavity (22) defined by at least two impressions (28, 30) and designed to receive a shoe last (24) so as to define, when the mould (20) is closed, an interspace (26) having the shape and dimensions of the plastic footwear (10; 100) to be produced; - spraying a polyurethane mixture (M, P) onto said at least two impressions (28, 30) of the mould cavity (22); - inserting the shoe last (24) inside said mould cavity (22); - closing the mould cavity (22) so that the sprayed polyurethane mixture (M, P) occupies said interspace (26); - opening the mould (20), once at least the demoulding time (td) for the sprayed polyurethane mixture (M, P) has lapsed, such that the sprayed polyurethane mixture (M, P) has solidified inside the interspace (26) forming said plastic footwear (10, 100); - extracting the shoe last (24) from the mould cavity (22); - removing the plastic footwear (10, 100) from the shoe last (24).
B29C 41/08 - Revêtement d'une forme, d'un noyau ou d'un autre support par pulvérisation ou fluidisation, p. ex. pulvérisation de poudre
B29C 43/18 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
B29D 35/02 - Fabrication de chaussures fabriquées d'une seule pièce en utilisant une technique de moulage, p. ex. moulage par injection ou par coulée
B29D 35/04 - Fabrication de chaussures fabriquées d'une seule pièce en utilisant une technique de moulage, p. ex. moulage par injection ou par coulée comportant des parties multicouches
B29K 75/00 - Utilisation de polyurées ou de polyuréthanes comme matière de moulage
8.
SPRAYING DEVICE OF MIXTURES OBTAINED FROM THE REACTION OF POLYMER MATERIALS
The present invention relates to a spraying device 20 for mixtures obtained from the reaction of polymer materials. The spraying device 20 comprises: a casing 22, which encloses at least one mixing chamber 24 and which is provided at one of its ends with a nozzle 26; a mixer 28, which extends at least partially inside the mixing chamber 24 along a longitudinal axis X of the mixing chamber 24 and which is designed to rotate about said longitudinal axis X. The mixer 28 is intended to mix together at least two reactive polymer components introduced inside the mixing chamber 24 so as to obtain a polymer mixture which is designed to be sprayed through the nozzle 26 in the form of a spray cone Z. In accordance with the invention the mixer 28 is provided with an appendix 30 which protrudes, at least partially, from the casing 22 through the nozzle 26. The appendix 30 is provided with a deviation surface 32, on the outside of the nozzle 26, which is inclined at an angle of deviation a relative to the longitudinal axis X and which is intended to intercept and deviate at least a first portion K of the spray cone Z sprayed through the nozzle 26.
B29B 7/42 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles rotatifs avec un seul arbre à vis ou à vis sans fin
B05B 1/26 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des moyens pour briser ou dévier mécaniquement le jet à sa sortie, p. ex. des déflecteurs fixesDispersion du liquide ou d'autre matériau fluide sortant à l'aide de jets d'impact
B05B 7/04 - Pistolets pulvérisateursAppareillages pour l'évacuation avec des dispositifs permettant le mélange de liquides ou d'autres matériaux fluides avant l'évacuation
The present invention relates to a method for the production of a shoe (1) by means of direct injection, onto the upper (2), of a sole (3) made of polymer material comprising a midsole (5) and a tread (4) which covers a bottom surface of the midsole (5) and which, in at least one zone thereof, is in direct contact with the upper (2). The method comprises the step of providing a mould cavity (22), designed to receive the shoe part (1) to be covered with the sole (3) and comprising a base (12) having an impression (16) intended to form the outer surface of the tread (4). The method also comprises a step of spraying a first polymer mixture M onto the impression (16) in order to form the tread (4). Moreover, the method comprises the step of closing the mould cavity (22) around the shoe (1) so that the base (12) with the previously sprayed tread (4) is positioned relative to the upper (2) with the space for the midsole (5) and with the said zone of the tread (4) placed in direct contact with the upper (2). Finally, the method comprises the step of injecting a second polymer mixture S inside said mould cavity (22) after closing with the base (12), so as to form the midsole (5) in the said space for the midsole. The present invention also relates to a mould which can be used with this method.
B29D 35/08 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation comportant des parties multicouches
B29D 35/14 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage des parties multicouches
The present invention relates to a mould-holder station (10) for a machine for moulding polymer material by casting or injection inside a mould (14) mounted in the mould- holder station (10), the mould (14) comprising at least a base (15) and two side rings (16), The mould-holder station (10) comprises at least one mould-holder block (11) for fixing the two side rings (16) of the mould (14), and an actuating unit (12) for moving the support plate (17) for the base (15) of the mould (14); the actuating unit (12) being arranged underneath the mould-holder block (11); In accordance with the invention the mould-holder station (10) is characterized in that a collection element (20) is removably provided in a space defined by a bottom surface (31) of the mould-holder block (11) and by a top surface (32) of the actuating unit (12), said collection element being separate from and independent of the mould-holder block (11) and suitable for collecting any machining waste and/or release agent sprayed outside of the mould (14) mounted in the mould-holder station (10).
B29C 35/06 - Chauffage ou durcissement, p. ex. réticulation ou vulcanisation avec des liquides, des gaz ou de la vapeur d'eau pour fabriquer des objets de longueur indéfinie
11.
Method for applying an insert of polymer material onto a support and apparatus for implementing this method
a and the associated insert 40; trimming the portion S of the polymer mixture M which, following the spraying and pressing steps, has flowed outside the external perimeter of the impression mould 16. Finally, the invention relates to a mould 10 which can be used to implement this method and the articles 20 which may be obtained by means of this method.
B29C 43/20 - Fabrication d'objets multicouches ou polychromes
B29C 43/02 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés
B29D 35/14 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage des parties multicouches
B29C 43/18 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
Method for applying an insert 40 of polymer material onto a support layer 30, 30a, comprising the following steps: providing a mould 10 comprising at least one base 12 and at least one cover 18; the base 12 and the cover 18 being suitable for defining with the facing surfaces 13, 17, when the mould 10 is closed, a mould impression 16 which is delimited perimetrally by a closing edge 14; spraying a polymer mixture M in the fluid state onto one of the two facing surfaces 13, 17 of the mould 10; introducing the support layer 30, 30a between base 12 and cover 18 of the mould 10 so that, when the mould 10 is closed, the support layer 30, 30a projects from the closing edge 14; pressing the cover 18 of the mould 10 onto the base 12; opening the mould 10 in order to remove the support layer 30, 30a and the associated insert 40; trimming the portion S of the polymer mixture M which, following the spraying and pressing steps, has flowed outside the external perimeter of the impression mould 16. Finally, the invention relates to a mould 10 which can be used to implement this method and the articles 20 which may be obtained by means of this method.
B29C 43/02 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés
B29C 43/18 - Moulage par pressage, c.-à-d. en appliquant une pression externe pour faire couler la matière à moulerAppareils à cet effet pour la fabrication d'objets de longueur définie, c.-à-d. d'objets séparés en incorporant des parties ou des couches préformées, p. ex. moulage par pressage autour d'inserts ou sur des objets à recouvrir
B29D 35/08 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation comportant des parties multicouches
B29D 35/14 - Fabrication de leurs parties constitutives, p. ex. semelles, talons ou empeignes, par une technique de moulage des parties multicouches
13.
Method and device for spraying mixtures obtained from the reaction of polymer materials
A method and a device for producing a thin article or a thin coating on a previously manufactured solid body. At least two reactive polymer materials are mixed together thoroughly and die resultant mixture is discharged via a nozzle in the form of a thin tube. This thin tube is pulverized or atomized by means of the introduction of a controlled flow of pressurized air with the result that die pulverized mixture may be sprayed onto an open mold or onto a surface or onto a previously manufactured solid body which is to be coated.
B05B 1/28 - Buses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des moyens incorporés pour faire écran au liquide ou autre matériau fluide sortant, p. ex. pour limiter l'aire de pulvérisationBuses, têtes de pulvérisation ou autres dispositifs de sortie, avec ou sans dispositifs auxiliaires tels que valves, moyens de chauffage avec des moyens pour empêcher l'égouttement ou pour recueillir l'excès de liquide ou autre matériau fluide
B29B 7/42 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles rotatifs avec un seul arbre à vis ou à vis sans fin
B29C 41/36 - Alimentation en matière à mouler d'un moule, d'un noyau ou d'un autre support
B29B 7/80 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires
B29B 7/74 - MélangeMalaxage utilisant d'autres mélangeurs ou des combinaisons de mélangeurs différents
B05B 7/06 - Pistolets pulvérisateursAppareillages pour l'évacuation avec un orifice de sortie en entourant un autre situé approximativement dans le même plan
B05B 7/04 - Pistolets pulvérisateursAppareillages pour l'évacuation avec des dispositifs permettant le mélange de liquides ou d'autres matériaux fluides avant l'évacuation
14.
METHOD FOR THE PRODUCTION OF BREATHABLE WATERPROOF SHOES
Method for the production of an impermeable and breathable semi-finished article (11) which, together with an outsole (20), subsequently forms a shoe (10), comprising the following steps: forming an assembled piece (14) by means of assembly of a breathable upper (15) with an impermeable and breathable membrane (17) and a breathable lining (19); forming a semi-finished article (11) by means of mounting of the assembled piece (14) on an insole (16) so that the outer edge of the membrane (17) projects from the edge of the upper; and spraying the bottom part of the semi-finished article (11) with a mixture comprising a reactive polymer material.
The invention relates to a method and a device for producing a thin article or a thin coating on a previously manufactured solid body. At least two reactive polymer materials (A, B) are mixed together thoroughly and die resultant mixture (M) is discharged via a nozzle (216) in the form of a thin tube (250). This thin tube is pulverized or atomized by means of the introduction of a controlled flow of pressurized air with the result that die pulverized mixture (Z) may be sprayed onto an open mould (300) or onto a surface (350) or onto a previously manufactured solid body which is to be coated.
B05B 7/04 - Pistolets pulvérisateursAppareillages pour l'évacuation avec des dispositifs permettant le mélange de liquides ou d'autres matériaux fluides avant l'évacuation
B05B 7/06 - Pistolets pulvérisateursAppareillages pour l'évacuation avec un orifice de sortie en entourant un autre situé approximativement dans le même plan
B29B 7/74 - MélangeMalaxage utilisant d'autres mélangeurs ou des combinaisons de mélangeurs différents
B29B 7/42 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles rotatifs avec un seul arbre à vis ou à vis sans fin
B29C 41/08 - Revêtement d'une forme, d'un noyau ou d'un autre support par pulvérisation ou fluidisation, p. ex. pulvérisation de poudre
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
25 - Vêtements; chaussures; chapellerie
28 - Jeux, jouets, articles de sport
Produits et services
Rubber, gutta-percha, gum, asbestos, mica and goods made from these materials and not included in other classes; plastics in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, not of metal. Clothing, footwear, headgear. Games and playthings; gymnastic and sporting articles not included in other classes; decorations for Christmas trees.
17.
METHOD OF MAKING A FOOTWEAR BY INJECTION/CASTING OF A MONO-OR MULTI-LAYERED SOLE OF SYNTHETIC MATERIAL DIRECTING ONTO THE UPPER
Method for the production, by means of injection/casting directly onto an upper (32), of a shoe formed at least by one sole part (50; 79) and an upper (32), where the former overlaps in an overlapping area (53) the toe (40) and/or the heel of the latter. The upper (32) is enclosed inside a first mould (36) which grips it at the edges leaving at least one zone (39) of the toe (40) and/or the heel thereof exposed and which defines a first cavity (49; 81) where the sole is formed. A second mould (46; 72) in the form of a single-piece block comprising a second cavity (48, 74a, 74b) is coupled to the first mould (36) so as to form the first cavity (49; 81) and so as to introduce the exposed zone (39) of the upper (32) into the second cavity (48, 74a, 74b). A mould and a machine as well as the shoes which may be made with them are also claimed.
B29D 35/08 - Fabrication de chaussures comportant des semelles ou des talons formés et réunis sur des empeignes préformées en utilisant une technique de moulage, p. ex. moulage par injection, pressage et vulcanisation comportant des parties multicouches
