Abrégé

The invention relates to a device (1) for level-winding a tape around a reel (2), the device (1) comprising a shaft driven in rotation about its axis and intended to receive a reel (2) fitted around the axis, means (6) for holding a free end of the tape on the reel (2), and means for relative axial movement between the reel (2) and the tape in order to carry out the level-winding operation as such. According to the invention, the holding means (6) rotate as one with the shaft and are axially and radially movable so as to transition from a position in which the free end of the tape is held against one end of a working surface of the reel (2) to a neutral position separated radially and axially from the working surface of the reel (2).

Classes IPC  ?

• B29D 30/00 - Fabrication de pneumatiques, de bandages pleins ou de leurs parties constitutives

Abrégé

A method, and a module (1) for its implementation, is provided for unwinding and splicing reels (2) of flexible material articles. The method includes unwinding a full reel (2) from an unwinding station (4), the reel being positioned on a rotating assembly (3); and, during the unwinding of the reel, positioning a new full reel (2) from a reloading station (5) onto the rotating assembly (3). When the unwound reel is empty, the method includes rotating the rotating assembly (3) to move the empty reel to the reloading station (5) and, simultaneously, the full reel to the unwinding station (4) The method includes splicing the initial end of the article from the full reel with the final end of the article from the empty reel, and unwind the full reel from the unwinding station (4); and From the reloading station (5), removing the empty reel and position a new full reel. The process from step C) may be repeated as many times as necessary.

Classes IPC  ?

• B65H 19/12 - Levage, transport ou insertion de la bobineEnlèvement du noyau vide

Abrégé

The invention relates to a method for automatically splicing a first article, unwound from a first reel, to a second article wound around a second reel, the articles being flexible and in the form of webs or strips. According to the invention, the method comprises steps consisting in: positioning an adhesive tape on an end that is to be spliced belonging to the second article; automatically moving a portion of the first article to a cutting plane situated facing the end that is to be spliced belonging to the second article; holding the portion of the first article downstream of the cutting plane with respect to the first reel; cutting the first article transversely; automatically moving the end that is to be spliced belonging to the second article as far as the cutting plane; and pressing a cut end of the first article at the cutting plane against the end that is to be spliced belonging to the second article in order to stick them together using the adhesive tape.

Classes IPC  ?

• B65H 19/10 - Changement de la bobine dans les mécanismes de déroulage ou en liaison avec les opérations de déroulage
• B65H 19/12 - Levage, transport ou insertion de la bobineEnlèvement du noyau vide

Abrégé

The invention relates to a method, and the module (1) for implementing same, for unwinding and splicing reels (2) of articles made of flexible material. According to the invention, the method comprises steps of: A) unwinding a full reel (2) from an unwinding station (4), the reel being positioned on a rotary assembly (3); B) during the unwinding of the reel, positioning a new, full reel (2) on the rotary assembly (3) from a reloading station (5); C) when the unwound reel is empty, pivoting the rotary assembly (3) in order to move the empty reel to the reloading station (5) and, concomitantly, the full reel to the unwinding station (4); D) splicing an initial end of the article from the full reel with a final end of the article obtained from the empty reel, and unwinding the full reel from the unwinding station (4); E) from the reloading station (5), removing the empty reel and positioning a new, full reel; - recommencing the method at step C) as many times as is necessary.

Classes IPC  ?

• B65H 19/12 - Levage, transport ou insertion de la bobineEnlèvement du noyau vide

Abrégé

The invention relates to a method for automatically splicing a first article (2), unwound from a first reel (2a), to a second article (3) wound around a second reel (3a), the articles being flexible and in the form of webs or strips. According to the invention, the method comprises steps consisting in: - positioning an adhesive tape (A) on an end that is to be spliced belonging to the second article (3); - automatically moving a portion of the first article (2) to a cutting plane (P) situated facing the end that is to be spliced belonging to the second article (3); - holding the portion of the first article (2) downstream of the cutting plane (P) with respect to the first reel (2a) - cutting the first article (2) transversely; - automatically moving the end that is to be spliced belonging to the second article (3) as far as the cutting plane (P); - pressing a cut end of the first article (2) at the cutting plane (P) against the end that is to be spliced belonging to the second article (3) in order to stick them together using the adhesive tape (A).

Classes IPC  ?

• B65H 19/18 - Fixation, p. ex. par collage, de la bande de remplacement à celle qui se termine
• B29C 65/50 - Assemblage d'éléments préformésAppareils à cet effet en utilisant des adhésifs utilisant des rubans adhésifs

Abrégé

The invention relates to a method comprising the steps of: - continuously depositing the sheet (4) at an extruder outlet onto a conveyor belt (5) circulating in a closed loop in an accumulator (6), the accumulator (6) comprising a first zone (6a) for accumulating/unloading the conveyor belt (5) alone and a second zone (6b) for unloading/accumulating the conveyor belt (5) receiving the sheet (4); - at the outlet of the accumulator (6), cutting the sheet (4) across its width into a plurality of rubber strips (2); - continuously unwinding reels (12a) of strips of backing film (12) having widths which correspond to those of the rubber strips (2); - positioning each rubber strip (2) on a strip of backing film (12) and winding them together at an initial speed around a holder (3a) in order to form rubber reels (3); - while the reels (3) are forming, providing empty holders (3a), which are intended for receiving rubber reels (3), and reels (12a), which are full of strips of backing film (12), and attaching the strips of backing film to the empty holders which are intended for receiving the rubber reels; - when the rubber reels (3) are finished, stopping the winding of the rubber strips (2) and the strips of backing film (12), unloading the conveyor belt (5) alone into the first zone (6a) of the accumulator (6), and simultaneously accumulating the conveyor belt (5) receiving the sheet (4) in the second zone (6b) of the accumulator (6); - while the conveyor belt (5) receiving the sheet (4) is accumulating, cutting the rubber strips (2) transversely upstream of the rubber reels (3), and reattaching the rubber strips (2) coming from the extruder to the empty holders (3a); - simultaneously finishing the winding of the free end of the rubber strips (2) and the strips of backing film (12) around the rubber reels (3), discharging said rubber reels (3) and restarting the winding of each of the rubber strips (2) and the strips of backing film (12) around the empty holders (3a) at a speed higher than the initial speed until unloading the conveyor belt (5) receiving the sheet (4) in the second zone (6b) of the accumulator (6) and simultaneously accumulating the conveyor belt (5) alone in the first zone (6a) of the accumulator (6), and then resuming winding at the initial speed.

Classes IPC  ?

• B29C 48/28 - Stockage de la matière extrudée, p. ex. par enroulement ou empilement
• B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
• B29C 48/08 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée plate, p. ex. panneaux flexible, p. ex. pellicules
• B65H 18/10 - Mécanismes d'enroulage des bandes dans lesquels l'énergie est appliquée à la broche de la bobine
• B65H 20/34 - Dispositions pour accumuler un surplus de bande par formation de boucles au moyen de rouleaux

Abrégé

A device (1) for the ultrasonic rolling/knurling and cutting of a hot-melt article, the device (1) comprising a shoe (2) with, on the one hand, a first part (21) receiving a pivoting support (3) attached with an ultrasonic assembly (4) comprising a sonotrode (41) connected to a frequency converter (42) and, on the other hand, a second part (22) receiving a counter-tool (5) oppositely aligned with the sonotrode (41) and a cutting blade (6). According to the invention, the device (1) comprises a frequency generator (8) and a fan (9), rigidly attached to the support (3), the frequency generator (8) supplies the frequency converter (42) and the fan (9), the fan (9) being intended to blow out an airflow at a point of contact between the sonotrode (41) and the counter-tool (5).

Classes IPC  ?

• B29C 65/08 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage avec des vibrations ultrasonores
• B29C 65/74 - Assemblage d'éléments préformésAppareils à cet effet par soudage et découpage
• B26D 1/01 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce
• B29K 101/12 - Matières thermoplastiques

Produits et services

Machine tools; cutting and welding machines; machines and machine tools for use in the textile industry; machines for manufacturing textile articles; machines for laminating, knurling and cutting a hot-melt article.

Abrégé

Automatic facility for transverse winding of strips from a coiled web (2), successively comprising: - a first module (3) for cutting the coiled web (2) into a plurality of strips (4); - a second module (5) for winding the strips (4) around the same bar (6) to form reels (7); - a third module (17) for cutting a strip (4) from a reel into a plurality of strips; - a fourth module (19) for transversely winding the strips around mandrels to form coils, the facility being characterised in that the bar (6) which receives the reels (7) comprises a shaft (9) around which a plurality of sections (10) spaced apart from each other are mounted, each section (10) being intended to receive a reel (7), the sections (10) being rotatable by the shaft (9) in the same direction so as to be able to simultaneously wind all of the strips (4) into reels (7), and mounted so as to be free to rotate in an opposite direction in order to be able to unwind the reels (7) one by one, and in that the facility (1) comprises an automatic gripping system (14) which is capable of gripping a bar (6) full of reels (7) from the second winding module (5) and capable of depositing a bar (6) full of reels (7) on a displaceable carriage (15) in front of the third module (17) for unwinding and cutting the strips (4) one by one from the reels (7) into a plurality of strips.

Classes IPC  ?

• B29D 30/46 - Découpage des entoilages à la forme voulue
• B65H 19/22 - Changement de la bobine dans les mécanismes d'enroulage ou en liaison avec les opérations d'enroulage
• B65H 19/30 - Levage, transport ou enlèvement de la bobineInsertion du noyau
• B65H 75/24 - Détails de structure de forme réglable, p. ex. expansibles

Abrégé

The invention relates to a device (1) for winding up or unwinding a plurality of reels (2), each reel (2) being formed by a wound strip. According to the invention, the device comprises a bar (3) comprising a shaft (4) about which a plurality of sections (5) are mounted in a manner spaced apart from one another, each section (5) being intended to support a reel (2), the sections (5) are mounted so as to be free to rotate in one and the same direction in order for it to be possible to unwind the reels (2) one by one, and are able to be driven in rotation by the shaft (4) in an opposite direction in order for it to be possible to simultaneously wind up all of the strips on the reels (2).

Classes IPC  ?

• B65H 75/30 - Dispositions pour faciliter l'entraînement ou le freinage
• B65H 75/44 - Détails de structure
• B65H 49/32 - Supports ou cadres
• B65H 54/40 - Dispositions pour faire tourner les paquets

Abrégé

The present invention relates to a tape-winding device (S) comprising a first reel (1) and a second reel (2), both able to rotate so as to wind the tape (7) in succession onto the first reel (1) then onto the second reel (2), and means (8) for cutting the tape (7) once the first reel (1) is full, so as to transfer, and then attach, a free end of the tape (7) onto the second reel (2). According to the invention, the device (S) comprises a pivoting arm (4) able to move about a pivot axis between the reels (1, 2) and controlled automatically in a transfer operation for transferring a free end of the tape (7) from the first reel (1) towards the second reel (2); and means (18) for automatically attaching the free end of the tape (7) to the second reel (2).

Classes IPC  ?

• B65H 54/20 - Bobinage et va-et-vient du matériau sur noyaux, bobines, tubes ou sur mandrins ou gabarits pour paquets analogues pour la confection de paquets de forme particulière ou autour de types particuliers de bobines, tubes, mandrins ou gabarits formant paquets multiples
• B65H 54/71 - Dispositions pour séparer les matériaux filiformes
• B65H 57/14 - Poulies, rouleaux ou barres rotatives
• B65H 75/28 - Agencements pour fixer les extrémités du matériau
• B65H 19/26 - Coupure de la bande sur son trajet vers la bobine à garnir
• B65H 19/28 - Accrochage de la tête de la bande au nouveau noyau ou à la broche
• B65H 65/00 - Fixation du matériau aux noyaux ou gabarits

Abrégé

The method of the invention comprises the following consecutive steps: - continuously feeding out the web (5) from the outlet of the extruder (6) via handling and cooling rollers (7a); continuously depositing the cooled web (5) on a liner (9) that is continuously unwound to form a complex (10); feeding the complex (10) in an accumulator (12); at the outlet of the accumulator (12), cutting the complex (10) into a plurality of strips (2) in the direction of its width; winding, at an initial speed, each strip about a support element (3) to form discs (4); when the discs (4) are completed, stopping the winding of the strips (2) and collecting the complex (10) from the extruder (6) into the accumulator (12).

Classes IPC  ?

• B65H 19/24 - Accumulation d'un surplus de bande sortie pendant le changement de bobine
• B65H 19/14 - Accumulation d'un surplus de bande pour alimenter la machine pendant le changement de bobine
• B65H 19/22 - Changement de la bobine dans les mécanismes d'enroulage ou en liaison avec les opérations d'enroulage
• B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
• B29D 30/00 - Fabrication de pneumatiques, de bandages pleins ou de leurs parties constitutives
• B65H 19/26 - Coupure de la bande sur son trajet vers la bobine à garnir
• B65H 20/30 - Dispositions pour accumuler un surplus de bande
• B65H 20/32 - Dispositions pour accumuler un surplus de bande par formation de boucles
• B65H 20/34 - Dispositions pour accumuler un surplus de bande par formation de boucles au moyen de rouleaux
• B29C 47/08 - Eléments constitutifs, détails ou accessoires; Opérations auxiliaires
• B29D 30/46 - Découpage des entoilages à la forme voulue

Abrégé

Method and facility for continuously crosswinding gum strips about spools. The method of the invention comprises the following consecutive steps: - continuously feeding out and cooling the web (5) from the outlet of the extruder (6) via handling and cooling rollers (7a); continuously depositing the cooled web (5) on a liner (9) that is continuously unwound to form a complex (10); feeding the complex (10) into an accumulator (12); at the outlet of the accumulator (12), cutting the complex (10) into a plurality of strips (2) in the direction of its width; crosswinding, at an initial speed, each strip about a spool.

Classes IPC  ?

• B65H 19/24 - Accumulation d'un surplus de bande sortie pendant le changement de bobine
• B65H 19/14 - Accumulation d'un surplus de bande pour alimenter la machine pendant le changement de bobine
• B65H 19/22 - Changement de la bobine dans les mécanismes d'enroulage ou en liaison avec les opérations d'enroulage
• B29C 47/00 - Moulage par extrusion, c. à d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désirée; Appareils à cet effet (moulage par extrusion-soufflage B29C 49/04)
• B29D 30/00 - Fabrication de pneumatiques, de bandages pleins ou de leurs parties constitutives
• B65H 19/26 - Coupure de la bande sur son trajet vers la bobine à garnir
• B65H 20/30 - Dispositions pour accumuler un surplus de bande
• B65H 20/32 - Dispositions pour accumuler un surplus de bande par formation de boucles
• B65H 20/34 - Dispositions pour accumuler un surplus de bande par formation de boucles au moyen de rouleaux
• B29C 47/08 - Eléments constitutifs, détails ou accessoires; Opérations auxiliaires
• B29D 30/46 - Découpage des entoilages à la forme voulue

Abrégé

The invention relates to a method for conveying a low-tension flexible belt or strip (2), made of fabric or composite material, over a length of more than 30 m and at a speed higher than 600 m/min. The method consists of unwinding and returning the belt or strip (2) by means of a plurality of pairs of rollers (4, 5) which are motorised and rotated at identical speeds, each pair of rollers (4, 5) consecutively driving a first surface (2a) of the belt or strip (2) by means of a first roller (4) rotated in one direction and a second opposite surface (2b) of the belt or strip (2) by means of a second roller (5) rotated in an opposite direction.

Classes IPC  ?

• B65H 20/02 - Progression des bandes par un rouleau de friction

Abrégé

According to the invention, the roller comprises a hollow cylindrical body (2) made from composite material and each end of the body comprises a steel end-piece (3) to be secured to rolling means so as to rotate the roller. The end-pieces, which are preferably made from aluminium or steel, are preferably sleeves or inserts with internal honeycomb structures.

Classes IPC  ?

• B65H 27/00 - Structures particulières, p. ex. caractéristiques de surface, des rouleaux d'alimentation ou de guidage des bandes
• F16C 13/00 - Rouleaux, tambours, disques ou éléments analoguesPaliers ou leurs montages
• B29C 45/16 - Fabrication d'objets multicouches ou polychromes

Abrégé

Process for laminating a hotmelt article (1) by ultrasound and by means of a sonotrode (2), the sonotrode (2) being moved in the plane of the hotmelt article (1) to be laminated with said sonotrode (2) bearing against a strip (5) able to conduct the vibrations generated by the sonotrode, said strip being positioned between said sonotrode (2) and the hotmelt article (1) to be laminated.

Classes IPC  ?

• B29C 65/08 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage avec des vibrations ultrasonores
• B65H 19/18 - Fixation, p. ex. par collage, de la bande de remplacement à celle qui se termine

Abrégé

According to the invention, the method includes at least the steps consisting of: - stopping the winding of the strip (2) to be cut by stopping the rotation of the bobbin (3); - creating a transverse line of weakness (8) on the strip (2), upstream from the bobbin (3); - restarting the winding, with a controlled speed and tension for the band (2), by restarting rotation with a controlled speed for the bobbin (3) so as to move said line of weakness; - locking the strip (2) upstream/downstream from the line of weakness; and - exerting a pulling force on the strip (2) upstream/downstream from the line of weakness so as to permanently cut the strip (2) along said line of weakness.

Classes IPC  ?

• B65H 19/26 - Coupure de la bande sur son trajet vers la bobine à garnir
• B65H 18/10 - Mécanismes d'enroulage des bandes dans lesquels l'énergie est appliquée à la broche de la bobine
• B65H 18/26 - Mécanismes de commande de la pression de contact sur le paquet de bande enroulée, p. ex. pour réguler la quantité d'air entre les couches

Abrégé

The invention relates to a method for transverse winding of an item (2) around a receiving spool (3), said item (2) extending longitudinally and having two longitudinal edges (2a, 2b), said item (2) being attached by one end to the receiving spool (3), said method consisting of rotating the receiving spool (3) about the axis of rotation thereof so as to wind the item (2) around said receiving spool (3), and of performing a relative movement of said receiving spool (3) relative to said item to be wound transversely, along the axis of rotation of said receiving spool (3) and between a first position in which a first longitudinal edge (2a) of the item (2) is aligned with a first adjacent flank (3a) of the spool (3), and a second position in which the second longitudinal edge (2b) of the item (2) is aligned with the second adjacent flank (3b) of said receiving spool (3) in order to perform the transverse winding operation as such, detecting and measuring at all times, upstream from the receiving spool (3), a transverse shift of the item (2) relative to an original position of said item (2), and correcting, in accordance with the measured shift, the relative movement of the receiving spool (3) relative to the item to be wound transversely in order to compensate for the shift of the item (2) such that in said first and second positions, the longitudinal edges (2a, 2b) of the item (2) are always aligned with the respective adjacent flanks (3a, 3b) of the receiving spool (3).

Classes IPC  ?

• B65H 54/28 - Dispositifs de va-et-vientDispositions pour la mise en forme des paquets
• B65H 63/06 - Dispositifs d'alarme ou de sécurité utilisés pour le déroulage, le dévidage, le défilement, l'enroulage, le bobinage ou l'emmagasinage d'un matériau filiforme, p. ex. détecteurs automatiques de défectuosités ou mécanismes d'arrêt réagissant à la présence d'irrégularités dans le matériau pendant son défilement, p. ex. pour rompre le matériau aux irrégularités

Abrégé

The method according to the invention for joining ends comprises at least the steps involving: - providing an installation with a second pay-out reel (B2) around which a second item (3) is wound; - automatically moving a taut length of the second item (3) into an end-joining plane (P) situated off the pay-out path of the first item (2); - automatically moving a taut length of the first item (2) into the end-joining plane (P) so as to bring the length of the first item (2) face to face and edge to edge with the length of second item (3); - automatically bringing the two lengths into contact edge to edge and automatically transversally cutting and bonding the two lengths in order to perform the end-joining operation as such.

Classes IPC  ?

• B65H 19/18 - Fixation, p. ex. par collage, de la bande de remplacement à celle qui se termine

Abrégé

A method for splicing two thermofusible articles (2, 3) in the form of strips or layers, comprising at least the following steps, according to the invention: -making a transverse cutout in one of the articles (2, 3), referred to as the first article (2), and removing one of the cutout parts; -manually positioning the other article, referred to as the second article (3), in place of the removed part, and overlapping the first article (2); -making a transverse cutout in the part of the second article (3) that overlaps the first article (2), and removing this cutout part; -automatically and mechanically positioning the second article (3) to overlap the first article (2) according to a predefined length corresponding, at most, to a weld width; -carrying out the transverse welding of the overlapping area of the two articles (2, 3) according to said weld width.

Classes IPC  ?

• B65H 19/18 - Fixation, p. ex. par collage, de la bande de remplacement à celle qui se termine
• B65H 21/00 - Appareils pour raccorder les bandes

Abrégé

This apparatus comprises, as is usually the case, a body having (i) a part (1a) that receives an oscillating holder (2) to which an assembly is adjustably fixed, said assembly including a converter (3) and a sonotrode (4), and (ii) a part (1b) that receives a counter tool or anvil placed in alignment with, and opposite the sonotrode (4). The assembly is secured to means for modifying the gap between the sonotrode (4) and the anvil and the pressure exerted by the sonotrode (4). The apparatus is also equipped with a means (11) in the form of an eccentric shaft which can be rotated from the exterior of the body and which includes: a double shouldered cylindrical bearing inserted, in a freely rotatable manner, in the thickness of the holder and of part of the body that receives the holder; and a zone with two threaded bearings that extend beyond said part of the body. The rotation of the shaft shifts the holder by a few micrometres in order precisely to readjust, and maintain, the setting for the pressure and the gap when the apparatus is used in any position, including an upside-down position, i.e. when the assembly is located below the anvil.

Classes IPC  ?

• B29C 65/08 - Assemblage d'éléments préformésAppareils à cet effet par chauffage, avec ou sans pressage avec des vibrations ultrasonores
• B29C 65/74 - Assemblage d'éléments préformésAppareils à cet effet par soudage et découpage

Abrégé

The device comprises: a system (10) to control the width of the strip located upstream from the cutting means; means of stretching or releasing the strip which can be activated before cutting the small strips (1a) if the multiple of the sum of the widths of the small strips does not correspond to the total width of the strip, said means being capable of stretching or releasing the strip in a controlled manner to reduce or increase the width of same until said width corresponds to said multiple of the sum of the widths of the small strips.

Classes IPC  ?

• B65H 23/02 - Positionnement, tension, suppression des à-coups ou guidage des bandes transversal
• B65H 35/02 - Délivrance d'articles à partir de machines à découper ou à perforer linéairementAppareils délivrant des articles ou des bandes, comportant des dispositifs pour couper ou perforer linéairement, p. ex. distributeurs de bande adhésive à partir de dispositifs pour fendre ou de perforatrices longitudinales ou avec ces dispositifs