The present invention relates in particular to a creel for a fibre bobbin, comprising at least one module (2) including a first mandrel (21) for receiving a bobbin, mounted rotatably about a first axis (A1), and a system (3) for controlling the tension of the fibre which comprises an unwinding roller (31) mounted rotatably about a second axis (A2) parallel to the first axis, a swinging arm (33) mounted pivotably about a third axis (A3) perpendicular to the first and second axes, and supporting at the end thereof a swinging pulley (32) mounted rotatably about a fourth axis (A4) parallel to the third axis, and a deflecting pulley (34) mounted rotatably about a fifth axis (A5), parallel to the fourth axis. The fibre (91) passes over the unwinding roller, the swinging pulley and then the deflecting pulley, the rotation of the first mandrel being controlled in accordance with the position of the swinging arm.
B65H 49/34 - Dispositions pour la rotation commandée des paquets
B65H 59/26 - Surfaces à action conjuguée montées en vue d'un déplacement relatif et disposées pour détourner le matériau de la voie directe
B65H 59/38 - Réglage ou commande de la tension du matériau filiforme, p.ex. pour empêcher les vrilles; Utilisation d'indicateurs de tension par régulation de la vitesse du mécanisme d'entraînement des dispositifs de déroulage, de dévidage, d'avance, d'enroulement ou d'emmagasinage, p.ex. en réaction automatique aux variations de tension
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
2.
FIBER APPLICATION HEAD COMPRISING A SPECIAL APPLICATION ROLLER
The invention relates to a fiber application head for manufacturing composite material parts and to a corresponding manufacturing method. Said head includes: - an application roller (3) for applying a strip formed of one or more fibers (81, 82) onto an application surface (91); - a main guide system (12) for guiding at least one fiber towards said application roller; - a heating system (2) capable of emitting heat radiation towards the strip just before application by the application roller; - a cooling system (4) capable of cooling the application roller from the outside, such as a gas flow; and - a drive system (5) capable of rotating the application roller when the roller is not in contact with the application surface.
The present invention concerns a fibre application head, comprising a roller (11) for applying a strip formed from one or more fibres (81, 82) onto an application surface (91), a main guide system (12) for guiding at least one fibre towards said roller, and a heating system (2) suitable for emitting heat radiation towards the strip, just prior to the application thereof, characterised in that the heating system comprises at least one first infrared lamp (3) capable of heating the strip exiting the main guide system, and at least one second infrared lamp (4) capable of heating the surface upstream from the roller, said head further comprising a secondary guide system (5, 6) capable of guiding the strip between the main guide system and the roller while allowing said strip to be heated by the first lamp.
The invention relates to a method for inspecting fibres draped by means of a fibre placement machine comprising a fibre placement head, characterised in that it comprises: a) the draping of at least one fibre (41, 42) by means of the placement machine, the detection of at least one reference position of a reference mark (10), and the detection of the real position of an edge of the draped fibre, in both cases the detection being carried out by means of a detection system mounted on the fibre placement machine; b) the comparison of the reference position and the real position; and c) the production of an alert information message depending on the result of said comparison.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
G01N 21/00 - Recherche ou analyse des matériaux par l'utilisation de moyens optiques, c. à d. en utilisant des ondes submillimétriques, de la lumière infrarouge, visible ou ultraviolette
5.
METHOD FOR PRODUCING THERMOPLASTIC PARTS REINFORCED WITH CONTINUOUS THERMOPLASTIC FIBRES
The invention relates to a method for producing a reinforced part (4), characterised in that it comprises draping continuous unidirectional fibres (31-34) over a rigid intermediate part (1) produced from at least one first thermoplastic polymer, said fibres being pre-impregnated with at least one second thermoplastic polymer, said draping being carried out by the automated positioning of the pre-impregnated fibres on the intermediate part by means of a compaction roller (21) and by heating the pre-impregnated continuous fibres to be draped and the intermediate part to a temperature at least higher than or equal to the melting temperature of the second polymer, in order to weld the pre-impregnated fibres to the intermediate part, said pre-impregnated fibres being draped in the direction(s) of the main stresses of the reinforced part.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
B29C 70/68 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts en incorporant ou en surmoulant des parties préformées, p.ex. des inserts ou des couches
B29C 70/16 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues
B29C 35/08 - Chauffage ou durcissement, p.ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
6.
METHOD FOR CREATING PREFORMS BY APPLYING AND SHAPING ORIENTED FIBERS
The present invention relates to a method for creating three-dimensional preforms that includes: - applying continuous fibers on an application surface so as to form a plurality of fiber plies placed one on top of the other in different orientations, each ply being created by applying one or more strips in one orientation and each strip being formed from one or more fibers; and - shaping the set of plies so as to obtain a preform in the final three-dimensional shape thereof. Said application includes creating at least two plies (5, 6) having a same orientation. The fibers of the second ply (6) are partially placed on top of the fibers of the first ply (5) at the end portions thereof so that relative longitudinal movement of the fibers of the second ply in relation to the fibers of the first ply is achieved during shaping so as to create the final shape of the preform.
B29C 70/20 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes des renforcements fibreux uniquement caractérisées par la structure des renforcements fibreux utilisant des fibres de grande longueur, ou des fibres continues orientées dans une seule direction, p.ex. mèches ou autres fibres parallèles
B29B 11/16 - Fabrication de préformes caractérisées par la structure ou la composition comprenant des charges ou des agents de renforcement
7.
METHOD AND MACHINE FOR CREATING PREFORMS BY COMPACTIONLESS APPLICATION OF ORIENTED FIBERS
The present invention relates to a method for creating preforms, to a method for creating composite material parts from said preforms, and to a corresponding application machine. The method for creating preforms includes compactionless application of continuous fibers (9) in defined orientations on the application surface by means of an application head (1) and moreover includes compaction of the applied fibers so as to obtain a preform. Said application is carried out by relative movement of the head along different paths in relation to the draping surface without compacting the fibers. The fiber or fibers are positively driven into the head via a drive means. Operations for cutting the fibers are carried out at the end of and/or in the middle of a path via a cutting means. The cut fibers are driven via a complementary cutting means including, for each fiber, a channel having a gas flow flowing therein.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
B29C 70/34 - Façonnage par empilage, c.à d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyau; Façonnage par pistolage, c.à d. pulvérisation de fibres sur un moule, un gabarit ou un noyau et façonnage ou imprégnation par compression
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
B29B 11/16 - Fabrication de préformes caractérisées par la structure ou la composition comprenant des charges ou des agents de renforcement
B29C 31/04 - Alimentation, p.ex. chargement d'une cavité de moulage
8.
METHOD FOR PRODUCING PREFORMS FROM FIBRES WITH IN-LINE APPLICATION OF A BINDER, AND CORRESPONDING MACHINE
The present invention concerns, in particular, a method for producing preforms, by draping fibres onto a draping surface, which involves conveying at least one dry fibre (91) from a storage and dispensing system to a draping head, and, during the draping, applying a liquid or pasty binder onto said fibre and/or onto the draping surface and/or the surface of the previously draped fibres. Said application is carried out by means of at least one valve nozzle (50) comprising a chamber (51) supplied with pressurised binder and provided with a discharge port (53), and a valve (54) movably mounted in the chamber and actuated by actuating means (55, 56) between a closed position and an open position, said actuating means being controlled by a control system (73) in accordance with the travelling speed of the fibre.
The present invention relates to an application head for fibres and an application method for fibres for producing parts made of composite material, the head comprising cutting means that are able to cut the fibres and redirecting means comprising at least one motorized drive roller (105) and a counter-roller that is actuated by an actuating system between a rest position and a redirecting position for pinching at least one fibre between the drive roller and the counter-roller. Said drive roller comprises a core (106) coupled to a motor, a ring (107) mounted so as to move angularly on said core between an initial position and a driving position in which the core drives the ring positively in rotation, and urging means (109) that apply a return force in order to urge the ring towards the initial position thereof.
The present invention concerns a fibre application head and a method for producing parts from composite material by means of a corresponding head. The head comprises two application rollers, including a first roller (2) and a second roller (2'), each roller being movably mounted relative to said main guiding system (3) between at least an active position in which said strip is capable of being guided by the main guiding system on said roller, and an inactive position in which said roller is moved away from the main guiding system. The head comprises an actuating system capable of manoeuvring the first roller into the active position and the second roller into the inactive position to apply a strip by means of the first roller, and of manoeuvring the first roller into the inactive position and the second roller into the active position to apply a strip by means of the second roller.
The present invention relates to a method and a machine for producing preforms by draping fibers over a draping surface, including feeding at least one dry fiber (9) from a storage and dispensing system (3) to a draping head (2) for draping said fiber onto a draping surface, characterized in that it includes, during the draping of a fiber, applying a binder (8) onto said fiber, preferably in the form of at least one thread or at least one strand; moving the fiber with the binder to the draping head; and heating said fiber with the binder so as to enable the adhesion of said fiber to the draping surface and/or to one or more previously draped fibers provided with the binder.
The present invention relates to a fibre application machine for producing parts made up of composite materials, a method for producing a preform and a method of producing a part made up of composite material. The machine comprises transport means to transport fibres from storage means to an application head, which comprises at least one continuous belt (3, 4) extending between the head and the fibre storage means, mounted between an upstream return system (38, 48) and a downstream return system (39, 49), said continuous belt comprising an outgoing strand (32, 42) against which a fibre can come into contact without sliding.
The present invention relates to a fibre laying head (1) for creating components made of composite, allowing fibres to be laid in two opposite directions. It comprises an application roller (2) for laying a strip formed of one or more fibres (F1, F2) on the application surface of a mould, and a main guidance system (3) for guiding at least one fibre towards said application roller. Said application roller is mounted with the ability to move with respect to said main guidance system (3) between a first position, in which said strip is guided by the main guidance system over a first portion of the cylindrical surface of the roller, and a second position in which said strip is guided over a second portion of the cylindrical surface of the roller.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
B29C 35/08 - Chauffage ou durcissement, p.ex. réticulation ou vulcanisation utilisant l'énergie ondulatoire ou un rayonnement corpusculaire
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
14.
FIBRE APPLICATION HEAD WITH COMB HAVING FLEXIBLE TABS
The present invention relates to a fibre application head for producing parts made of composite materials. The head comprises an application roller (2) for applying a strip formed of one or more fibres to the application surface of a mould, and guidance means (3) for guiding at least one fibre toward said application roller. It also comprises a comb (4) comprising a plurality of flexible tabs (41) capable of coming against said fibre or fibres leaving the guidance means in order to press said fibre or fibres against the application roller.
The invention relates a fibre application head for a fibre application machine for producing parts from composite materials. The head comprises a compaction roller including multiple independent roller segments (3) mounted side by side on an axial rod. Each roller segment comprises a central tubular portion (31) by means of which the segment is mounted on the axial rod, a peripheral tubular portion (32) having a cylindrical external surface and one or more curved spring plates (40) disposed between the external surface (31a) of the central portion and the internal surface (32b) of the peripheral portion.
The invention relates to a fibre application machine for producing parts from composite materials, said machine comprising: a fibre application head, fibre storage means, and means (4) for conveying the fibres from the storage means to the head. The conveying means comprise first flexible tubes (41), each first flexible tube being able to receive a fibre in the internal passage thereof and being provided with at least one longitudinal flexible plate (42) having a rectangular cross-section. Each first flexible tube (41) and its associated flexible plate (42) are placed in a second flexible tube (44), such that the second flexible tube holds the flexible plate substantially against the first flexible tube, while allowing the relative longitudinal movement of the flexible plate in relation to the first flexible tube.
The invention relates to a machine for applying fibers, including a fiber-applying head (3), a moving system for moving said fiber-applying head, fiber-storing means (4), and fiber-conveying means (5) for conveying the fibers from said storage means to the application head. The machine further includes a safety system (8) including at least one perimeter barrier (81) defining a safety area (80) in which the moving system (1) supporting the application head is placed, the storage means (4) being arranged outside said safety area.
The present invention essentially relates to a machine for handling tools, comprising a tilting device (1) including two plates each mounted so as to be capable of rotation and vertical sliding on a base (10a, 10b) and equipped with an arm (13a, 13b) having an upper face provided with a first portion of a locking system, a tool (2), the lower faces of the end portions of which are provided with second portions of the locking systems, and a control system for synchronously moving the plates between an extreme lower position, in which the arms are arranged under the tool carried by a carrier system (4), and a low position in which the first portions are capable of engaging with the second portions of the locking systems for locking the tool, and between said low position and at least one high position in which the control system is capable of rotating the tool.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
The invention relates to a method for manufacturing an elongate reinforcement part, including: a) producing an assembly (21a) of plies by drape-moulding at least two complementary plies on a drape-moulding tool (3), and positioning said assembly of plies on a female forming tool (3) including a groove (32), the transverse shape of which substantially corresponds to the cross-section of the reinforcement part to be produced, or a complementary male forming tool, b) forming said assembly of plies between the male forming tool and the female forming tool so as to obtain a preformed assembly, c) positioning the preformed assembly on a final moulding tool, d) repeating steps a), b) and c) until the desired number of plies for the reinforcement part has been produced, and e) compacting the preformed assemblies that are stacked on the final moulding tool.
B29C 70/34 - Façonnage par empilage, c.à d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyau; Façonnage par pistolage, c.à d. pulvérisation de fibres sur un moule, un gabarit ou un noyau et façonnage ou imprégnation par compression
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
B29D 99/00 - Matière non prévue dans les autres groupes de la présente sous-classe
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
(1) Machines, nommément robots industriels et machines-outils pour le travail des plastiques et machines-outils pour l'industrie de l'aéronautique, de l'éolien, du nautique; moteurs (à l'exception des moteurs pour véhicules terrestres), nommément moteurs de machines, moteurs d'outils à main, moteurs de bateaux, moteurs pour machinerie industrielle; accouplements de machines et organes de transmission (à l'exception de ceux pour véhicules terrestres), nommément courroies de transmission pour machinerie industrielle, transmissions pour machinerie industrielle; instruments agricoles autres que ceux actionnés manuellement, nommément tracteurs agricoles, équipement agricole d'irrigation et d'arrosage, équipement agricole pour ensemencer; couveuse pour les oeufs. (1) Traitement de matériaux, nommément traitement de plastique, de minerais, d'acier, de métaux communs pour l'industrie des transports terrestres, nommément automobiles, autobus, train, métro et tramway, de l'aéronautique, des énergies, nommément de l'éolien, de l'hydrolien et du nautique; transformation de matières plastiques. Services de conception, de réalisation (élaboration) et tests de prototypes pour des robots industriels; programmation de matériels informatiques nommément programmation de serveurs informatiques et d'ordinateurs permettant le fonctionnement des systèmes de fabrication de prototypes pour des robots industriels mis au point; conception de plans de bateaux; services d'architecture navale; mise au point de méthodes et d'outils, nommément services d'ingénierie industrielle dans le domaine de la fabrication de produits industriels par la technique de placement de fibres plastiques robotisée pour la fabrication de produits industriels par application, adaptation et développement de la technologie de l'enroulement filamentaire et de la dépose de fibres continues et discontinues.
21.
MACHINE FOR APPLYING FIBERS, INCLUDING A FLEXIBLE COMPACTING ROLLER WITH A HEAT ADJUSTMENT SYSTEM
The present invention relates to a machine for applying fibers for making composite material, including a compacting roller (2) for applying a strip consisting of at least one planar fiber preimpregnated with resin on an application surface, and a heating system capable of emitting a thermal radiation toward said strip. The compacting roller comprises a rigid central tube (4) provided with radial holes (41) and a cylinder (3) made of a flexible material, elastically deformable, arranged on said central tube, and having fluid communication means (32, 34, 35) for placing said radial holes in fluid communication with the outer surface (33) of said roller. Said machine comprises heat adjustment means capable of injecting a heat adjustment fluid into the inner passage (42) of the central tube.
The present invention relates to a fibre-application method and a machine intended for the production of parts made from composite material, in particular for applying a fiber web onto convex and/or ridged surfaces. The machine includes a fiber application head and a system (5) for moving said application head. The application head includes a compacting system comprising a compacting roller (2) intended to come into contact with the application surface (90) so as to apply the web and a compacting member (3, 103, 203) placed downstream from said compacting roller and having a substantially planar contact surface (32), whereby the contact surface of the compacting member can be applied against an application surface over substantially the entire width of a web along at least one contact line.
The present invention relates to a fiber application machine for the production of composite material parts, comprising a system (1) f or displacing a fiber application head (3), fiber storing means (4), and fiber conveying means (5) for conveying the fibers from said storing means to said application head, characterized in that the fiber conveying means are placed in the internal passage (61) of at least one flexible tubular sheath (6), said machine further comprising cooling means (7) able to inject cold gas in the internal passage (61) of said sheath.
The present invention relates to a fibre application machine comprising at least a first applicator head (2a) connected to first fibre storage means (3a) by fibre conveying means e.g. consisting of first hoses (4a) and a second applicator head (2b) connected to second storage means (3b) by second hoses (4b), a system (1) for moving the applicator head, an automatic tool-changing system comprising a head changer with a main part (5) mounted on the movement system (1), a tool part (61, 62) mounted on each of the applicator heads, and at least two applicator head holders (92a, 92b) for the applicator heads. The machine advantageously includes a storage means changer.
The invention relates to a fibre applicator head for producing parts made from composite materials, intended to be mounted to the end of a movement system in order to apply a wide strip formed by multiple fibres to a surface. The head includes an applicator roller (R) for applying fibres in the form of a strip, guiding means (3) for guiding the fibres on the roller and cutting means (4a, 4B) comprising blades actuated by actuation systems (40) between a rest position and an active cutting position in order to cut the fibres upstream of the applicator roller. The aforementioned blades and the associated actuation systems (40) are all disposed on the side of the roller (R) in relation to the fibres.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
B26D 7/14 - Moyens de traitement de la pièce ou de l'outil de coupe pour faciliter la coupe par mise en tension de la pièce
B26D 1/08 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupant; Appareils ou machines à cet effet; Eléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant se déplaçant linéairement l'élément coupant étant animé d'un mouvement de va-et-vient du genre guillotine
B26D 5/12 - Moyens pour actionner l'outil de coupe afin d'effectuer la coupe au moyen de la pression d'un fluide
30.
FIBRE APPLICATOR HEAD INCLUDING SYSTEMS FOR CUTTING AND BLOCKING INDIVIDUAL FIBRES
The invention relates to a fibre applicator head for producing parts made from composite materials, intended to be mounted to the end of a movement system in order to apply a wide strip formed by multiple fibres to a surface. The head includes an applicator roller (R), guiding means (3) for guiding the fibres on the roller, cutting means comprising blades (41) actuated by actuation systems in order to cut the fibres upstream of the applicator roller (R), and blocking means comprising blocking pins (43) actuated by actuation systems in order to block the fibres that have just been cut. The pins (43) and the blades (41) are actuated by common actuation systems (42) which, for each fibre to be cut and blocked, move a blade and a pin in order to cut and block the fibre.
B29C 70/38 - Empilage automatisé, p.ex. utilisant des robots, par application de filaments selon des modèles prédéterminés
B29C 70/54 - Façonnage de matières composites, c. à d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p.ex. des inserts comprenant uniquement des renforcements, p.ex. matières plastiques auto-renforçantes opération de façonnage des matières composites comprenant uniquement des renforcements - Parties constitutives, détails ou accessoires; Opérations auxiliaires
B26D 1/08 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupant; Appareils ou machines à cet effet; Eléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant se déplaçant linéairement l'élément coupant étant animé d'un mouvement de va-et-vient du genre guillotine
B26D 5/08 - Moyens pour actionner l'outil de coupe afin d'effectuer la coupe
B26D 7/14 - Moyens de traitement de la pièce ou de l'outil de coupe pour faciliter la coupe par mise en tension de la pièce
31.
METHOD AND DEVICE FOR MAKING PARTS OF A COMPOSITE MATERIAL, IN PARTICULAR SECTIONS OF AN AIRCRAFT FUSELAGE
The invention relates to a method and a device for making hollow parts of a composite material, in particular of the aircraft-fuselage section type, that include a skin and optionally reinforcing members. The method comprises a step of inserting a poly-articulated arm (11) fitted with a fibre-placement head (13) inside a female mould (2) with an elongated shape, said female mould being open at a longitudinal slot (26) for receiving bearing means (12, 14) of said poly-articulated arm, and a step of applying the fibres on the inner moulding surface (21a) of the female moulding using the placement head in order to form said skin of a composite material by displacing the application head using the poly-articulated arm and by a relative translation displacement of said bearing means of the poly-articulated arm along said longitudinal slot.
The invention relates to a fibre application machine for making parts of a composite material that comprises a system for moving a fibre application head, fibre storage means and means for supplying the fibres from said storage means to the application head. The supply means include flexible tubes connecting the storage means to the application head, each flexible tube being provided with at least one flexible longitudinal blade (42) having a rectangular cross-section, said flexible blade being arranged substantially parallel to the transport plane of the fibre (F) received in an inner passage (412) of the flexible tube.
B29K 105/08 - Présentation, forme ou état de la matière moulée contenant des agents de renforcement, charges ou inserts de grande longueur, p.ex. ficelles, mèches, mats, tissus ou fils
The invention concerns a fiber application machine comprising a system for moving a fiber application head, fiber storing means, and fiber conveying means from said storing means to the application head, and at least one tension limiting system (109), arranged between the fiber storing means and the application head, including at least two mutually parallel cylinders (91, 191), whereon a plurality of fibers are capable of being urged to be partly wound, and driving means (192, 193) for rotating said cylinders, substantially at the same speed, said driving means being automatically controlled by a control unit of the machine, such that the peripheral speeds of the cylinders are higher than the moving speed of the fibers at the application roll.
