EP1646740A2 - Machine for yarn cabling/twisting and continuous setting - Google Patents

Machine for yarn cabling/twisting and continuous setting

Info

Publication number
EP1646740A2
EP1646740A2 EP04767882A EP04767882A EP1646740A2 EP 1646740 A2 EP1646740 A2 EP 1646740A2 EP 04767882 A EP04767882 A EP 04767882A EP 04767882 A EP04767882 A EP 04767882A EP 1646740 A2 EP1646740 A2 EP 1646740A2
Authority
EP
European Patent Office
Prior art keywords
wire
machine according
accumulator
winding
fixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04767882A
Other languages
German (de)
French (fr)
Other versions
EP1646740B1 (en
Inventor
Bernard Puaux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
RITM
Original Assignee
Rieter Textile Machinery France SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rieter Textile Machinery France SA filed Critical Rieter Textile Machinery France SA
Publication of EP1646740A2 publication Critical patent/EP1646740A2/en
Application granted granted Critical
Publication of EP1646740B1 publication Critical patent/EP1646740B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
    • D02G3/28—Doubled, plied, or cabled threads
    • D02G3/285—Doubled, plied, or cabled threads one yarn running over the feeding spool of another yarn
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/28—Heating or cooling arrangements for yarns
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/86—Multiple-twist arrangements, e.g. two-for-one twisting devices ; Threading of yarn; Devices in hollow spindles for imparting false twist

Definitions

  • a machine has been designed and developed for cabling / twisting and continuous fixing of wires, comprising several treatment stations integrating, in combination and successively, according to the same working position: means twisting / wiring a wire, - heat-fixing means constituted by a rotary heating cup followed by an accumulator capable of cooling and relaxing the wire in the completely free state, without tension, means of winding or winding the wire , said means being subject to drive and wire guide members.
  • the twisting / wiring, thermofixing and winding means are mounted in combination with call members of the wire and the arrangements of the frame of said machine, so as to delimit a reduced and compact space integrating the wire unwinding means, along a path of the wire of reduced length.
  • the bucket has arrangements suitable for controlling the withdrawal of the wire.
  • the bucket has a longitudinal profile delimiting successive zones extending over almost the entire length of said bucket, namely a zone for taking up the initial crimp, a residual shrinkage area and a fixing area.
  • the areas of recovery of the initial crimp and residual shrinkage are constituted by conical surfaces, while the fixing zone is constituted by a cylindrical surface.
  • the two conical surfaces have different angular values of conicity, the residual shrinkage zone having an angular value lower than that of the zone for resuming the initial crimp.
  • the length of the attachment zone is greater than the sum of the lengths of the other two zones.
  • the areas of recovery of the initial crimp, residual shrinkage and fixing can be formed by a curved profile.
  • Another problem which the invention proposes to solve is to keep the wire in contact with the bucket for a certain time, to secure the wire.
  • the heating cup is subject to means able to allow automatic hauling of the wire.
  • the accumulator is constituted by a hollow rectilinear body whose end, considered on the side of the outlet, is frustoconical to create, inside said body, a buffer zone slowing down the outlet of said wire in it avoiding going out directly.
  • the wire is subjected to the action of bars capable of ensuring a deflection of the wire by giving it the tension necessary for winding.
  • the accumulator consists of a relaxation mat where the wire forms a reserve, said mat being disposed between the heat-fixing cup and the winding means, the winding speed being adjusted so that the quantity of wire accumulated in reserve is kept between two predetermined minimum and maximum values.
  • the wire is deposited in the accumulator under the effect of a relative movement between a guide element and the accumulator itself. The relative movement is created by a displacement of the wire guide element or by a displacement of the accumulator itself.
  • each processing station successively comprises from the unwinding reel: a spindle for twisting and / or wiring the yarn: a pressing delivery device ensuring a limitation of the tension of the yarn and fixing a level of twist downstream; the heated rotary bucket; - the cooling accumulator; the shift bars; the winding or winding reel.
  • FIG. 1 is a schematic view showing the principle of processing the wires in the same working position combining the operations of twisting / wiring, heat setting and winding
  • - Figure 2 is a perspective view of an embodiment of a machine according to the invention
  • - Figure 3 is a schematic view showing an embodiment of the heating cup
  • - Figure 4 is a perspective view of the accumulator
  • - Figure 5 is a longitudinal sectional view of the accumulator.
  • the machine comprises a frame (B) with, preferably, a plurality of identical treatment stations.
  • each treatment station integrates, in combination and successively, according to the same working position, twisting / wiring means (1) of a wire, thermofixing (2) and cooling (3) means. wire, and winding or winding means (4) of the wire (5).
  • the twisting / wiring (1), heat-setting (2) and cooling (3) means, the winding or winding means (4) of the wire (5) are mounted in combination with arrangements of the frame (B) of the machine, so as to delimit a reduced and compact space integrating the wire unwinding means (6), along a path of reduced length (FIG. 1).
  • the twisting / wiring means of the wire are constituted, in a manner perfectly known to a person skilled in the art, by a double twist wiring spindle making it possible to carry out either a twisting or a direct wiring operation.
  • the spindle driven by any known and appropriate means receives a coil of a first wire to be treated called "pot wire".
  • the spindle has a hollow barrel for the supply of a second wire called "creel wire” coming from the reel of unwinding (6).
  • the creel wire is brought through the hollow barrel of the spindle to be joined to the pot wire, at a wiring head (7).
  • This wiring head can be combined with a call means making it possible to cancel the tension resulting from wiring or twisting.
  • This ground of appeal may be composed of a set of the capstan and pressurized cylinder type. Such arrangements are not described in detail since they are perfectly known to a person skilled in the art. We refer for example to the teaching of patent application FR 2,732,043.
  • the means for thermofixing the wire consist of a rotary heating cup (2) followed by an accumulator (3) capable of cooling and relaxing the wire, while being completely free and without tension.
  • the bucket (2) is brought to a determined temperature and is positively rotated by any known and appropriate means.
  • the heating means can, for example, be of the induction type.
  • the bucket (2) has arrangements suitable for controlling the withdrawal of the wire.
  • the bucket has a longitudinal profile shaped to define successive and continuous areas extending over almost its entire length. These zones consist of a recovery zone (2a), a residual withdrawal zone (2b) and a fixing zone (2c).
  • the two zones (2a) and (2b) are constituted by conical surfaces, while the fixing zone (2c) is constituted by a cylindrical surface.
  • the conical bearings (2a) and (2b) have a different angulation.
  • the residual shrinkage area (2b) has an angular taper ⁇ less than the taper ⁇ of the initial crimp recovery area (2a).
  • the residual withdrawal zone (2b) has a length greater than that of the recovery zone (2a).
  • the length of the fixing zone (2c) is greater than the sum of the lengths of the other two zones (2a) and (2b). In the example illustrated, it therefore appears that the three zones (2a), (2b) and (2c) come from a succession of spans of different length and taper.
  • the bucket (2) may have a curved longitudinal profile. Given the characteristics of the heating cup (2), it is possible to fix the twisted or cabled wire in order to give it very good crimp characteristics. At the initial crimp recovery zone (2a), the contact of the wire on the heating cup creates a shock effect allowing the wire to regain its initial crimp. This crimping is accompanied by a controlled shrinkage resulting from the conicity ⁇ of the conical aperture (2a). After this shock effect given to the wire, the residual withdrawal zone (2b) allows the wire to complete its withdrawal in a smooth and regular manner since the taper is less than the tapered reach (2b) of length greater than the reach conical (2a).
  • the wire is fixed under the conditions to which it was subjected in the two preceding zones. Given the importance of the length of the cylindrical seat (2c), the wire is fixed smoothly.
  • the wire retains its original tension but is subject to withdrawal.
  • the wire tends to turn on itself as its twist increases.
  • all parts of the wire are in contact with the bucket, which ensures a completely round shape to the wire.
  • the conical profile and the textile adjustment force the thread to a calculated shrinkage. It is also observed that in order to fix the wire, the latter must remain for a certain time in contact with the different zones of the bucket (2). To increase this contact time, it is known to carry out a wire reeving operation on the bucket. This hauling operation can be carried out manually or automatically.
  • the wire is subjected to the action of an accumulator (3) capable of ensuring complete cooling and relaxation of the wire after thermofixing and of creating a buffer zone between the thermofixation and the winding allowing continuous thermofixation when changing the receiving coil (4).
  • the accumulator (3) is constituted by a hollow rectilinear body, for example, of quadrangular cross section.
  • the end of the accumulator body (3), considered on the side of the outlet, is frustoconical and of gradually decreasing section in the direction of said free end to create, inside the body, a buffer zone slowing down the outlet of the wire avoiding him to go out directly.
  • this accumulator (3) at the outlet of the heating cup, is arranged, at the level of the treatment station considered, in a substantially vertical plane, the wire entering through the end (3b) to exit, by simple gravity, at the frustoconical part (3a).
  • the accumulator (3) has a series of parallel bars (8) mounted on a support element (9) secured for example to the end of the accumulator (3).
  • the bars (8) are arranged substantially perpendicular to the longitudinal axis of the accumulator (3), that is to say perpendicular to the path of the wire, to perform a function of unwinding said wire by giving it the tension necessary for winding.
  • the accumulator (3) can consist of a relaxation mat where the wire forms a reserve.
  • the mat is placed between the heat-fixing cup (2) and the winding means (4).
  • the winding speed is adjusted so that the quantity of yarn accumulated in reserve is kept between two predetermined minimum and maximum values.
  • each treatment station successively comprises, from the winding reel (6), according to the same working position delimiting a reduced and compact space with a thread path also of reduced length:
  • the delivery presser member (7) ensuring a limitation of the wire tension (5) and fixing a tension level downstream; - the heated rotary cup (2);

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Wire Processing (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Sewing Machines And Sewing (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

The machine consists of one or more posts that combine in succession twisting (1), thermofixing (2), cooling (3) and winding (4) systems for the yarn. The different systems are connected to drives and guides set in a frame equipped with yarn feeds (6) and occupying a reduced space.

Description

MACHINE POUR LE CABLAGE / TORSION ET LA FIXATION EN CONTINU DE FILS MACHINE FOR CONTINUOUS WIRING / TORSIONING AND FIXING OF WIRES
L'invention se rattache au secteur technique de la fixation- de la torsion et de la frisure des fils dans le domaine du textileThe invention relates to the technical sector of fixing- twisting and crimping of threads in the textile field
De nombreuses solutions techniques ont été proposées pour réaliser l'opération de câblage et de fixation de fils continus. On peut citer, à titre indicatif nullement limitatif, l'enseignement du brevet FR 2.732.043 qui concerne une machine comportant un bâti central supportant une pluralité de positions de travail identiques comprenant chacune : une broche double torsion ou de câblage direct supportant un enroulement de fil destiné à être tordu ou câblé avec un second fil ; des moyens d'appel du fil permettant d'annuler la tension qui résulte de l'opération de retordage ou de câblage ; des moyens de chauffage du fil suivis d'une zone de refroidissement et ; des moyens de renvidage du fil traité, les moyens de chauffage sont constitués par un four rectiligne disposé verticalement ou sensiblement verticalement ; - le fil effectue un aller-retour à l'intérieur dudit four et est introduit et extrait de ce dernier par sa partie basse, un système d'appel et de renvoi pour ledit fil étant prévu en partie supérieure ; des moyens sont prévus pour maintenir le fil sous une tension minimale pendant la phase de refroidissement et pour le délivrer aux moyens de renvidage.Many technical solutions have been proposed to carry out the operation of wiring and fixing of continuous wires. We can cite, by way of non-limiting indication, the teaching of patent FR 2,732,043 which relates to a machine comprising a central frame supporting a plurality of identical working positions each comprising: a double twist spindle or direct wiring supporting a winding of wire intended to be twisted or wired with a second wire; wire calling means making it possible to cancel the tension which results from the twisting or wiring operation; wire heating means followed by a cooling zone and; means for winding the treated wire, the heating means consist of a rectilinear oven arranged vertically or substantially vertically; - The wire goes back and forth inside said oven and is introduced and extracted from the latter by its lower part, a call and return system for said wire being provided in the upper part; means are provided for keeping the wire under a minimum tension during the cooling phase and for delivering it to the winding means.
On a également proposé des solutions dans lesquelles le four, qui est de dimensions importantes, est supprimé pour être remplacé par un godet cylindrique associé à un guide de renvoi pour permettre un mouflagc du fil. Le godet est porté à une température déterminée, et entraîné positivement en rotation. Cette solution ressort par exemple de l'enseignement de la demande de brevet FR 02.01357 non encore publiée. A partir de cet état de la technique, le problème que se propose de résoudre l'invention est d'assurer la fixation à la continue d'un seul fil à la fois, pour avoir un fil de passage très court, avec peu de points de contact, afin d'obtenir une meilleure régularité de la torsion du fil. Pour résoudre un tel problème, il a été conçu et mis au point une machine pour le câblage / torsion et la fixation en continu de fils, comprenant plusieurs postes de traitement intégrant, en combinaison et successivement, selon une même position de travail : des moyens de retordage/câblage d'un fil, - des moyens de thermofixation constitués par un godet rotatif chauffant suivi d'un accumulateur apte à refroidir et relaxer le fil à l'état complètement libre, sans tension, des moyens de bobinage ou renvidage du fil, lesdits moyens étant assujettis à des organes d'entraînement et de guidage du fil.Solutions have also been proposed in which the oven, which is of large dimensions, is eliminated in order to be replaced by a cylindrical cup associated with a return guide to allow the wire to be wrapped. The bucket is brought to a determined temperature and positively driven in rotation. This solution appears for example from the teaching of patent application FR 02.01357 not yet published. From this state of the art, the problem which the invention proposes to solve is to ensure the continuous attachment of only one thread at a time, so as to have a very short passing thread, with few stitches. contact, in order to obtain a better regularity of the twist of the wire. To solve such a problem, a machine has been designed and developed for cabling / twisting and continuous fixing of wires, comprising several treatment stations integrating, in combination and successively, according to the same working position: means twisting / wiring a wire, - heat-fixing means constituted by a rotary heating cup followed by an accumulator capable of cooling and relaxing the wire in the completely free state, without tension, means of winding or winding the wire , said means being subject to drive and wire guide members.
Le fait de combiner les trois opérations de câblage/retordage, de thermofixation et de bobinage, permet de limiter, d'une manière importante, la gestion de matière en encours entre ces trois opérations. Il en résulte des gains importants au niveau de la main d'oeuvre nécessaire à la gestion des stocks en cours et de l'immobilisation de matière ainsi qu'une diminution du cycle de production. Pour résoudre le problème posé d'avoir un parcours de fil le plus court possible, au niveau du ou de chaque poste de traitement, les moyens de retordage/câblage, de thermofixation et de bobinage sont montés en combinaison avec des organes d'appel du fil et des agencements du bâti de ladite machine, de manière à délimiter un espace réduit et compact intégrant les moyens de dévidage du fil, selon un trajet du fil de longueur réduite.The fact of combining the three operations of wiring / twisting, thermofixation and winding, makes it possible to limit, in a significant way, the management of material in stock between these three operations. This results in significant gains in terms of the workforce required to manage current stocks and the immobilization of material, as well as a reduction in the production cycle. To resolve the problem posed of having the shortest possible wire path, at or at each treatment station, the twisting / wiring, thermofixing and winding means are mounted in combination with call members of the wire and the arrangements of the frame of said machine, so as to delimit a reduced and compact space integrating the wire unwinding means, along a path of the wire of reduced length.
Le godet présente des agencements aptes à permettre de contrôler le retrait du fil.The bucket has arrangements suitable for controlling the withdrawal of the wire.
Dans une forme de réalisation, pour résoudre le problème posé de contrôler le retrait du fil, le godet présente un profil longitudinal délimitant des zones successives s 'étendant sur la quasi-totalité de la longueur dudit godet, à savoir une zone de reprise de la frisure initiale, une zone de retrait résiduel et une zone de fixation. Les zones de reprise de la frisure initiale et de retrait résiduel sont constituées par des portées coniques, tandis que la zone de fixation est constituée par une portée cylindrique. Les deux portées coniques ont des valeurs angulaires de conicité différentes, la zone de retrait résiduel présentant une valeur angulaire inférieure à celle de la zone de reprise de la frisure initiale. Avantageusement, la longueur de la zone de fixation est supérieure à la somme des longueurs des deux autres zones. Les zones de reprise de la frisure initiale, de retrait résiduel et de fixation peuvent être constituées par un profil courbe.In one embodiment, to solve the problem posed of controlling the withdrawal of the wire, the bucket has a longitudinal profile delimiting successive zones extending over almost the entire length of said bucket, namely a zone for taking up the initial crimp, a residual shrinkage area and a fixing area. The areas of recovery of the initial crimp and residual shrinkage are constituted by conical surfaces, while the fixing zone is constituted by a cylindrical surface. The two conical surfaces have different angular values of conicity, the residual shrinkage zone having an angular value lower than that of the zone for resuming the initial crimp. Advantageously, the length of the attachment zone is greater than the sum of the lengths of the other two zones. The areas of recovery of the initial crimp, residual shrinkage and fixing can be formed by a curved profile.
Un autre problème que se propose de résoudre l'invention est de maintenir le fil en contact avec le godet pendant un certain temps, pour réaliser la fixation du fil. Dans ce but, le godet chauffant est assujetti à des moyens aptes à permettre un mouflage automatique du fil.Another problem which the invention proposes to solve is to keep the wire in contact with the bucket for a certain time, to secure the wire. For this purpose, the heating cup is subject to means able to allow automatic hauling of the wire.
Un autre problème que se propose de résoudre l'invention est d'assurer le refroidissement complet et la relaxation du fil après thermofixation pour créer une zone tampon entre la thermofixation et le bobinage, pour continuer la thermofixation en continu lors du changement de bobine de réception. Pour résoudre un tel problème, l'accumulateur est constitué par un corps rectiligne creux dont l'extrémité, considérée du côté de la sortie, est tronconique pour créer, à l'intérieur dudit corps, une zone tampon freinant la sortie dudit fil en lui évitant de sortir directement. A la sortie de l'accumulateur, le fil est soumis à l'action de barres aptes à assurer un dévrillage du fil en lui donnant la tension nécessaire au bobinage.Another problem which the invention proposes to solve is to ensure complete cooling and relaxation of the wire after heat setting to create a buffer zone between the heat setting and the winding, to continue the continuous heat setting when changing the take-up reel. . To solve such a problem, the accumulator is constituted by a hollow rectilinear body whose end, considered on the side of the outlet, is frustoconical to create, inside said body, a buffer zone slowing down the outlet of said wire in it avoiding going out directly. At the outlet of the accumulator, the wire is subjected to the action of bars capable of ensuring a deflection of the wire by giving it the tension necessary for winding.
Dans une autre forme de réalisation, l'accumulateur est constitué par un tapis de relaxation où le fil forme une réserve, ledit tapis étant disposé entre le godet de thermofixation et les moyens de renvidage, la vitesse de renvidage étant réglée pour que la quantité de fil accumulée en réserve soit maintenue entre deux valeurs minimale et maximale prédéterminées. Le fil est déposé dans l'accumulateur sous l'effet d'un mouvement relatif entre un élément de guidage et l'accumulateur lui-même. Le mouvement relatif est créé par un déplacement de l'élément de guidage du fil ou par un déplacement de l'accumulateur lui-même.In another embodiment, the accumulator consists of a relaxation mat where the wire forms a reserve, said mat being disposed between the heat-fixing cup and the winding means, the winding speed being adjusted so that the quantity of wire accumulated in reserve is kept between two predetermined minimum and maximum values. The wire is deposited in the accumulator under the effect of a relative movement between a guide element and the accumulator itself. The relative movement is created by a displacement of the wire guide element or by a displacement of the accumulator itself.
Dans une forme de réalisation préférée de l'invention, chaque poste de traitement comprend successivement à partir de la bobine de dévidage : une broche de torsion et/ou de câblage du fil : un organe délivreur presseur assurant une limitation de la tension du fil et fixant un niveau de torsion en aval ; le godet rotatif chauffant ; - l'accumulateur de refroidissement ; les barres de dévrillage ; la bobine de bobinage ou renvidage.In a preferred embodiment of the invention, each processing station successively comprises from the unwinding reel: a spindle for twisting and / or wiring the yarn: a pressing delivery device ensuring a limitation of the tension of the yarn and fixing a level of twist downstream; the heated rotary bucket; - the cooling accumulator; the shift bars; the winding or winding reel.
L'invention est exposée ci-après plus en détail à l'aide des figures des dessins annexés dans lesquels : - la figure 1 est une vue à caractère schématique montrant le principe de traitement des fils dans une même position de travail combinant les opérations de retordage/câblage, de thermofixation et de bobinage ; - la figure 2 est une vue en perspective d'un exemple de réalisation d'une machine selon l'invention ; - la figure 3 est une vue à caractère schématique montrant un exemple de réalisation du godet chauffant ; - la figure 4 est une vue en perspective de l'accumulateur ; - la figure 5 est une vue en coupe longitudinale de l'accumulateur.The invention is set out below in more detail with the aid of the figures of the appended drawings in which: - Figure 1 is a schematic view showing the principle of processing the wires in the same working position combining the operations of twisting / wiring, heat setting and winding; - Figure 2 is a perspective view of an embodiment of a machine according to the invention; - Figure 3 is a schematic view showing an embodiment of the heating cup; - Figure 4 is a perspective view of the accumulator; - Figure 5 is a longitudinal sectional view of the accumulator.
Comme le montre notamment la figure 2, la machine comprend un bâti (B) avec, d'une manière préférée, une pluralité de postes de traitement identiques. Selon l'invention, chaque poste de traitement intègre, en combinaison et successivement, selon une même position de travail, des moyens de retordage/câblage (1) d'un fil, des moyens de thermofixation (2) et de refroidissement (3) du fil, et des moyens de bobinage ou de renvidage (4) du fil (5). Selon une caractéristique importante de l'invention, au niveau de chaque poste de traitement, les moyens de retordage/câblage (1), de thermofixation (2) et de refroidissement (3), les moyens de bobinage ou renvidage (4) du fil (5) sont montés en combinaison avec des agencements du bâti (B) de la machine, de manière à délimiter un espace réduit et compact intégrant les moyens de dévidage (6) du fil, selon un trajet de longueur réduite (figure 1).As shown in particular in Figure 2, the machine comprises a frame (B) with, preferably, a plurality of identical treatment stations. According to the invention, each treatment station integrates, in combination and successively, according to the same working position, twisting / wiring means (1) of a wire, thermofixing (2) and cooling (3) means. wire, and winding or winding means (4) of the wire (5). According to an important characteristic of the invention, at each processing station, the twisting / wiring (1), heat-setting (2) and cooling (3) means, the winding or winding means (4) of the wire (5) are mounted in combination with arrangements of the frame (B) of the machine, so as to delimit a reduced and compact space integrating the wire unwinding means (6), along a path of reduced length (FIG. 1).
Les moyens de retordage/câblage du fil sont constitués, d'une manière parfaitement connue pour un homme du métier, par une broche double torsion de câblage permettant de réaliser, soit un retordage, soit une opération de câblage direct. Par exemple, la broche entraînée par tout moyen connu et approprié, reçoit une bobine d'un premier fil à traiter appelé « fil de pot ».The twisting / wiring means of the wire are constituted, in a manner perfectly known to a person skilled in the art, by a double twist wiring spindle making it possible to carry out either a twisting or a direct wiring operation. For example, the spindle driven by any known and appropriate means receives a coil of a first wire to be treated called "pot wire".
Pour réaliser l'opération de câblage direct, la broche présente un fut creux pour l'amenée d'un second fil dit « fil de cantre » en provenance de la bobine de dévidage (6). Le fil de cantre est amené au travers du fût creux de la broche pour être réuni au fil de pot, au niveau d'une tête de câblage (7). Cette tête de câblage peut être combinée avec un moyen d'appel permettant d'annuler la tension résultant du câblage ou de la torsion. Ce moyen d'appel peut être composé d'un ensemble du type à cabestan et cylindre presscur. De telles dispositions ne sont pas décrites en détail car parfaitement connues pour un homme du métier. On renvoie par exemple à l'enseignement de la demande de brevet FR 2.732.043. Les moyens de thermofixation du fil sont constitués par un godet rotatif chauffant (2) suivi d'un accumulateur (3) apte à refroidir et à relaxer le fil, en étant complètement libre et sans tension. Le godet (2) est porté à une température déterminée et est entraîné positivement en rotation par tout moyen connu et approprié. Les moyens de chauffage peuvent, par exemple, être du type à induction.To carry out the direct wiring operation, the spindle has a hollow barrel for the supply of a second wire called "creel wire" coming from the reel of unwinding (6). The creel wire is brought through the hollow barrel of the spindle to be joined to the pot wire, at a wiring head (7). This wiring head can be combined with a call means making it possible to cancel the tension resulting from wiring or twisting. This ground of appeal may be composed of a set of the capstan and pressurized cylinder type. Such arrangements are not described in detail since they are perfectly known to a person skilled in the art. We refer for example to the teaching of patent application FR 2,732,043. The means for thermofixing the wire consist of a rotary heating cup (2) followed by an accumulator (3) capable of cooling and relaxing the wire, while being completely free and without tension. The bucket (2) is brought to a determined temperature and is positively rotated by any known and appropriate means. The heating means can, for example, be of the induction type.
D'une manière importante, le godet (2) présente des agencements aptes à permettre de contrôler le retrait du fil. Comme le montre notamment la figure 3, le godet présente un profil longitudinal conformé pour délimiter des zones successives et continues s'étendant sur la quasi totalité de sa longueur. Ces zones sont constituées par une zone de reprise (2a), une zone de retrait résiduel (2b) et une zone de fixation (2c). Par exemple, les deux zones (2a) et (2b) sont constituées par des portées coniques, tandis que la zone de fixation (2c) est constituée par une portée cylindrique. Les portées coniques (2a) et (2b) présentent une angulation différente. Ainsi, la zone de retrait résiduelle (2b) présente une conicité angulaire α inférieure à la conicité β de la zone de reprise de frisure initiale (2a).Importantly, the bucket (2) has arrangements suitable for controlling the withdrawal of the wire. As shown in particular in Figure 3, the bucket has a longitudinal profile shaped to define successive and continuous areas extending over almost its entire length. These zones consist of a recovery zone (2a), a residual withdrawal zone (2b) and a fixing zone (2c). For example, the two zones (2a) and (2b) are constituted by conical surfaces, while the fixing zone (2c) is constituted by a cylindrical surface. The conical bearings (2a) and (2b) have a different angulation. Thus, the residual shrinkage area (2b) has an angular taper α less than the taper β of the initial crimp recovery area (2a).
On observe également que la zone de retrait résiduelle (2b) présente une longueur supérieure à celle de la zone de reprise (2a). De même, la longueur de la zone de fixation (2c) est supérieure à la somme des longueurs des deux autres zones (2a) et (2b). Dans l'exemple illustré, il apparaît donc que les trois zones (2a), (2b) et (2c) sont issues d'une succession de portées de longueur et de conicité différentes.It is also observed that the residual withdrawal zone (2b) has a length greater than that of the recovery zone (2a). Likewise, the length of the fixing zone (2c) is greater than the sum of the lengths of the other two zones (2a) and (2b). In the example illustrated, it therefore appears that the three zones (2a), (2b) and (2c) come from a succession of spans of different length and taper.
Bien évidemment, sans pour cela sortir du cadre de l'invention, d'autres profils peuvent être envisagés susceptibles de réaliser les mêmes fonctions en vue des mêmes résultats. Par exemple, le godet (2) peut présenter un profil longitudinal courbe. Compte tenu des caractéristiques du godet chauffant (2), il est possible de fixer le fil retordu ou câblé afin de lui donner de très bonnes caractéristiques de frisure. Au niveau de la zone de reprise de frisure initiale (2a), le contact du fil sur le godet chauffant crée un effet choc permettant au fil de retrouver sa frisure initiale. Cette frisure s'accompagne d'un retrait contrôlé résultant de la conicité β de la porfce conique (2a). Après cet effet choc donné au fil, la zone de retrait résiduel (2b) permet au fil de terminer son retrait d'une manière douce et régulière étant donné que la conicité est inÉrieure à la portée conique (2b) de longueur supérieure à la portée conique (2a).Obviously, without departing from the scope of the invention, other profiles can be envisaged capable of performing the same functions for the same results. For example, the bucket (2) may have a curved longitudinal profile. Given the characteristics of the heating cup (2), it is possible to fix the twisted or cabled wire in order to give it very good crimp characteristics. At the initial crimp recovery zone (2a), the contact of the wire on the heating cup creates a shock effect allowing the wire to regain its initial crimp. This crimping is accompanied by a controlled shrinkage resulting from the conicity β of the conical aperture (2a). After this shock effect given to the wire, the residual withdrawal zone (2b) allows the wire to complete its withdrawal in a smooth and regular manner since the taper is less than the tapered reach (2b) of length greater than the reach conical (2a).
Au niveau de la zone cylindrique (2c), le fil est fixé dans les conditions auxquelles il a été soumis dans les deux zones précédentes. Compte tenu de l'importance de la longueur de la portée cylindrique (2c), la fixation du fil s'effectue en douceur.At the level of the cylindrical zone (2c), the wire is fixed under the conditions to which it was subjected in the two preceding zones. Given the importance of the length of the cylindrical seat (2c), the wire is fixed smoothly.
Compte tenu de ces dispositions, dans les deux zones coniques, le fil garde sa tension d'origine mais est soumis à un retrait. Le fil a tendance à tourner sur lui-même au fur et à mesure de l'augmentation de sa torsion. Il en résulte que toutes les parties du fil sont en contact avec le godet, ce qui assure une forme complètement ronde au fil. Le profil conique et le réglage textile obligent le fil à un retrait calculé. On observe également que pour réaliser la fixation du fil, ce dernier doit rester pendant un certain temps au contact des différentes zones du godet (2). Pour augmenter ce temps de contact, il est connu de réaliser une opération de mouflage du fil sur le godet. Cette opération de mouflage peut être réalisée de manière manuelle ou d'une manière automatique. A la sortie de l'ensemble du godet chauffant (2), le fil est soumis à l'action d'un accumulateur (3) apte à assurer le refroidissement complet et la relaxation du fil après thermofixation et à créer une zone tampon entre la thermofixation et le bobinage permettant de continuer la thermofixation en continu lors du changement de la bobine de réception (4).In view of these provisions, in the two conical zones, the wire retains its original tension but is subject to withdrawal. The wire tends to turn on itself as its twist increases. As a result, all parts of the wire are in contact with the bucket, which ensures a completely round shape to the wire. The conical profile and the textile adjustment force the thread to a calculated shrinkage. It is also observed that in order to fix the wire, the latter must remain for a certain time in contact with the different zones of the bucket (2). To increase this contact time, it is known to carry out a wire reeving operation on the bucket. This hauling operation can be carried out manually or automatically. At the outlet of the heating cup assembly (2), the wire is subjected to the action of an accumulator (3) capable of ensuring complete cooling and relaxation of the wire after thermofixing and of creating a buffer zone between the thermofixation and the winding allowing continuous thermofixation when changing the receiving coil (4).
Comme le montrent notamment les figures 4 et 5, l'accumulateur (3) est constitué par un corps rectilignc creux, par exemple, de section transversale quadrangulaire. L'extrémité du corps de l'accumulateur (3), considérée du côté de la sortie, est tronconique et de section progressivement dégressive en direction de ladite extrémité libre pour créer, à l'intérieur du corps, une zone tampon freinant la sortie du fil en lui évitant de sortir directement.As shown in particular in Figures 4 and 5, the accumulator (3) is constituted by a hollow rectilinear body, for example, of quadrangular cross section. The end of the accumulator body (3), considered on the side of the outlet, is frustoconical and of gradually decreasing section in the direction of said free end to create, inside the body, a buffer zone slowing down the outlet of the wire avoiding him to go out directly.
Comme le montrent notamment les figures 1 et 2, cet accumulateur (3), à la sortie du godet chauffant, est disposé, au niveau du poste de traitement considéré, dans un plan sensiblement vertical, le fil entrant par l'extrémité (3b) pour sortir, par simple gravité, au niveau de la partie tronconique (3a). Au niveau de cette extrémité tronconique (3a), l'accumulateur (3) présente une série de barres parallèles (8) montées sur un élément support (9) solidaire par exemple de l'extrémité de l'accumulateur (3). Les barres (8) sont disposées sensiblement perpendiculairement à l'axe longitudinal de l'accumulateur (3), c'est-à-dire perpendiculairement au trajet du fil, pour réaliser une fonction de dévrillage dudit fil en lui donnant la tension nécessaire au bobinage.As shown in particular in FIGS. 1 and 2, this accumulator (3), at the outlet of the heating cup, is arranged, at the level of the treatment station considered, in a substantially vertical plane, the wire entering through the end (3b) to exit, by simple gravity, at the frustoconical part (3a). At this frustoconical end (3a), the accumulator (3) has a series of parallel bars (8) mounted on a support element (9) secured for example to the end of the accumulator (3). The bars (8) are arranged substantially perpendicular to the longitudinal axis of the accumulator (3), that is to say perpendicular to the path of the wire, to perform a function of unwinding said wire by giving it the tension necessary for winding.
D'autres formes de réalisation de l'accumulateur (3) peuvent être envisagées. Par exemple, il peut être constitué par un tapis de relaxation où le fil forme une réserve. Le tapis est disposé entre le godet de thermofixation (2) et les moyens de renvidage (4). La vitesse de renvidage est réglée pour que la quantité de fil accumulé en réserve, soit maintenue entre deux valeurs minimale et maximale prédéterminées.Other embodiments of the accumulator (3) can be envisaged. For example, it can consist of a relaxation mat where the wire forms a reserve. The mat is placed between the heat-fixing cup (2) and the winding means (4). The winding speed is adjusted so that the quantity of yarn accumulated in reserve is kept between two predetermined minimum and maximum values.
A noter également que la dépose du fil (5) dans l'accumulateur (3), quelle que soit sa forme de réalisation peut résulter d'un mouvement relatif, entre un élément de guidage et l'accumulateur lui-même (3). Ce mouvement peut être un mouvement alternatif de type va et vient, ou bien une rotation continue ou alternée. Ou bien le mouvement relatif est créé par le déplacement de l'élément de guidage ou de l'accumulateur lui-même.Note also that the removal of the wire (5) in the accumulator (3), whatever its embodiment may result from a relative movement, between a guide element and the accumulator itself (3). This movement can be a reciprocating movement of the back and forth type, or a continuous or alternating rotation. Or else the relative movement is created by the displacement of the guide element or of the accumulator itself.
Compte tenu des caractéristiques à la base de l'invention, il apparaît que chaque poste de traitement comprend successivement, à partir de la bobine de renvidage (6), selon une même position de travail délimitant un espace réduit et compact avec un trajet de fil également de longueur réduite :Given the basic characteristics of the invention, it appears that each treatment station successively comprises, from the winding reel (6), according to the same working position delimiting a reduced and compact space with a thread path also of reduced length:
- une broche de torsion ou de câblage du fil (1), l'organe presseur délivreur (7) assurant une limitation de la tension du fil (5) et fixant un niveau de tension en aval ; - le godet rotatif chauffant (2) ;- a wire twisting or wiring spindle (1), the delivery presser member (7) ensuring a limitation of the wire tension (5) and fixing a tension level downstream; - the heated rotary cup (2);
- l'accumulateur de refroidissement (3) ;- the cooling accumulator (3);
- les barres de dévrillage (8) ;- the unwinding bars (8);
- la bobine de renvidage (4). II est bien évident que ces différents moyens peuvent être montés en combinaison avec tout système de contrôle de qualité en ligne, l'accumulateur tampon en sortie de broche, de système de frisage du fil, de système de détection de casse fil, .... Les avantages ressortent bien de la description, en particulier on souligne et on rappelle :- the winding reel (4). It is obvious that these various means can be mounted in combination with any online quality control system, the buffer accumulator at the spindle outlet, a wire crimping system, a wire break detection system, etc. . The advantages emerge clearly from the description, in particular it is emphasized and recalled:
- la fixation à la continue d'un seul fil à la fois, selon un trajet réduit permet de s'affranchir du problème de déchets liés à la dispersion de la qualité des différentes bobines lorsqu'elles sont traitées conjointement ;- the continuous fixing of only one wire at a time, along a reduced path makes it possible to overcome the problem of waste linked to the dispersion of the quality of the different coils when they are treated jointly;
- la possibilité de traiter des qualités de fils ayant une torsion élevée ;- the possibility of processing qualities of yarns having a high twist;
- le gain de productivité obtenu ;- the productivity gain obtained;
- la flexibilité du processus ;- flexibility of the process;
- le contrôle de retrait du fil compte tenu du profil du godet chauffant ; - l'utilisation d'un accumulateur permettant de refroidir et de relaxer le fil à l'état complètement libre, sans aucune tension ;- wire withdrawal control taking into account the profile of the heating cup; - the use of an accumulator making it possible to cool and relax the wire in the completely free state, without any tension;
- la meilleure régularité de la tension du fil résultant d'un passage du fil très court avec des points de contact ;- the best regularity of the thread tension resulting from a very short thread passage with contact points;
- la distance minimale entre le délivreur et le godet chauffant permet de mieux contrôler la torsion avant fixation en évitant des changements de torsion à court terme ;- the minimum distance between the deliverer and the heating cup allows better control of the torsion before fixing, avoiding short-term changes in torsion;
- la combinaison des trois opérations de câblage/retordage, de thermofixation et de bobinage, permet de limiter, d'une manière importante, la gestion des matières en encours. - the combination of the three operations of wiring / twisting, thermofixing and winding, makes it possible to limit, in a significant way, the management of materials in stock.

Claims

R E V E N D I C A T I O N SR E V E N D I C A T I O N S
-1- Machine pour le câblage / torsion et la fixation en continu de fils, comprenant plusieurs postes de traitement intégrant, en combinaison et successivement, selon une même position de travail : des moyens de retordage/câblage (1) d'un fil, des moyens de thermofixation constitués par un godet rotatif chauffant (2) suivi d'un accumulateur (3) apte à refroidir et relaxer le fil à l'état complètement libre, sans tension, - des moyens de bobinage ou renvidage (4) du fil (5), lesdits moyens étant assujettis à des organes d'entraînement et de guidage du fil.-1- Machine for wiring / twisting and continuously fixing wires, comprising several treatment stations integrating, in combination and successively, according to the same working position: twisting / wiring means (1) of a wire, heat-fixing means constituted by a rotary heating cup (2) followed by an accumulator (3) capable of cooling and relaxing the wire in the completely free state, without tension, - winding or winding means (4) of the wire (5), said means being subject to drive and wire guide members.
-2- Machine selon la revendication 1, caractérisée en ce que, au niveau du ou de chaque poste de traitement, les moyens de retordage/câblage (1), de thermofixation (2) et de bobinage (4), sont montés en combinaison avec des organes d'appel du fil et des agencements du bâti de ladite machine, de manière à délimiter un espace réduit et compact intégrant les moyens de dévidage (6) du fil, selon un trajet du fil de longueur réduite.-2- Machine according to claim 1, characterized in that, at the or each treatment station, the twisting / wiring means (1), thermofixation (2) and winding (4), are mounted in combination with wire drawing members and arrangements of the frame of said machine, so as to delimit a reduced and compact space integrating the wire unwinding means (6), along a path of the wire of reduced length.
-3- Machine selon l'une quelconque des revendications 1 et 2, caractérisée en ce que le godet (2) présente des agencements aptes à permettre de contrôler le retrait du fil.-3- Machine according to any one of claims 1 and 2, characterized in that the bucket (2) has arrangements capable of allowing to control the withdrawal of the wire.
-4- Machine selon la revendication 3, caractérisée en ce que les agencements du godet sont constitués par un profil longitudinal délimitant des zones successives s 'étendant sur la quasi-totalité de la longueur dudit godet, à savoir une zone de reprise (2a) de la frisure initiale, une zone de retrait résiduel (2b) et une zone de fixation (2c). -5- Machine selon la revendication 4, caractérisée en ce que les zones de reprise (2a) de la frisure initiale et de retrait résiduel (2b) sont constitués par des portées coniques, tandis que la zone de fixation (2c) est constituée par une portée cylindrique.-4- Machine according to claim 3, characterized in that the arrangements of the bucket are constituted by a longitudinal profile delimiting successive zones extending over almost the entire length of said bucket, namely a recovery zone (2a) of the initial crimp, a residual shrinkage area (2b) and a fixing area (2c). -5- Machine according to claim 4, characterized in that the areas of recovery (2a) of the initial crimp and residual shrinkage (2b) are constituted by conical surfaces, while the fixing zone (2c) is constituted by a cylindrical bearing.
-6- Machine selon la revendication 5, caractérisée en ce que les deux portées coniques (2a) et (2b) ont des valeurs angulaires de conicité différentes, la zone de retrait résiduel (2b) présentant une valeur angulaire inférieure à celle de la zone de reprise (2a) de la frisure initiale.-6- Machine according to claim 5, characterized in that the two conical surfaces (2a) and (2b) have different angular values of conicity, the residual shrinkage zone (2b) having an angular value less than that of the zone recovery (2a) of the initial crimp.
-7- Machine selon la revendication 3, caractérisée en ce que la longueur de la zone de fixation (2c) est supérieure à la somme des longueurs des deux autres zones (2a) et (2b).-7- Machine according to claim 3, characterized in that the length of the fixing zone (2c) is greater than the sum of the lengths of the other two zones (2a) and (2b).
-8- Machine selon la revendication 4, caractérisée en ce que les zones de frisure initiale, de retrait résiduel et de fixation sont constituées par un profil courbe.-8- Machine according to claim 4, characterized in that the initial crimping zones, residual shrinkage and fixing are formed by a curved profile.
-9- Machine selon la revendication 2, caractérisée en ce que le godet chauffant (2) est assujetti à des moyens aptes à permettre un mouflage automatique du fil.-9- Machine according to claim 2, characterized in that the heating cup (2) is subject to means adapted to allow automatic hauling of the wire.
-10- Machine selon la revendication 2, caractérisée en ce que l'accumulateur (3) est constitué par un corps rectiligne creux disposé sensiblement verticalement et dont l'extrémité, considérée du côté de la sortie, est tronconique pour créer, à l'intérieur dudit corps, une zone tampon freinant la sortie dudit fil en lui évitant de sortir directement. -11- Machine selon la revendication 10, caractérisée en ce que, à la sortie de l'accumulateur (3), le fil est soumis à l'action de barres (8) aptes à assurer un dévrillage du fil et lui donnant la tension nécessaire au bobinage.-10- Machine according to claim 2, characterized in that the accumulator (3) consists of a hollow rectilinear body disposed substantially vertically and whose end, considered on the side of the outlet, is frustoconical to create, at the inside said body, a buffer zone slowing the exit of said wire by preventing it from leaving directly. -11- Machine according to claim 10, characterized in that, at the outlet of the accumulator (3), the wire is subjected to the action of bars (8) capable of ensuring an unwinding of the wire and giving it tension necessary for winding.
-12- Machine selon la revendication 3, caractérisée en ce que l'accumulateur (3) est constitué par un tapis de relaxation où le fil forme une réserve, ledit tapis étant disposé entre le godet de thermofixation (2) et les moyens de renvidage (4), la vitesse de renvidage étant réglée pour que la quantité de fil accumulée en réserve soit maintenue entre deux valeurs minimale et maximale prédéterminées.-12- Machine according to claim 3, characterized in that the accumulator (3) consists of a relaxation mat where the wire forms a reserve, said mat being disposed between the heat-fixing bucket (2) and the winding means (4), the winding speed being adjusted so that the quantity of yarn accumulated in reserve is kept between two predetermined minimum and maximum values.
-13- Machine selon la revendication 7 ou 8, caractérisée en ce que le fil (5) est déposé dans l'accumulateur (3) sous l'effet d'un mouvement relatif entre un élément de guidage et l'accumulateur lui-même.-13- Machine according to claim 7 or 8, characterized in that the wire (5) is deposited in the accumulator (3) under the effect of a relative movement between a guide element and the accumulator itself .
-14- Machine selon la revendication 13, caractérisée en ce que le mouvement relatif est créé par un déplacement de l'élément de guidage du fil.-14- Machine according to claim 13, characterized in that the relative movement is created by a displacement of the wire guide element.
-15- Machine selon la revendication 13, caractérisée en ce que le mouvement relatif est créé par un déplacement de l'accumulateur lui-même.-15- Machine according to claim 13, characterized in that the relative movement is created by a movement of the accumulator itself.
-16- Machine selon la revendication 11 à 15, caractérisée en ce que chaque poste de traitement comprend successivement à partir de la bobine de dévidage : - une broche de torsion et/ou de câblage du fil (1) : un organe délivreur presseur (7) assurant une limitation de la tension du fil et fixant un niveau de torsion en aval ; le godet rotatif chauffant (2) ; l'accumulateur de refroidissement (3) ; les barres de dévrillage (8) ; la bobine de bobinage ou renvidage (4). -16- Machine according to claim 11 to 15, characterized in that each treatment station successively comprises, from the unwinding reel: - a twist and / or wire wiring spindle (1): a pressing delivery device ( 7) ensuring a limitation of the thread tension and fixing a level of twist downstream; the heated rotary cup (2); the cooling accumulator (3); the unwinding bars (8); the winding or winding reel (4).
EP04767882A 2003-07-22 2004-07-09 Machine for yarn cabling/twisting and continuous setting Expired - Lifetime EP1646740B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0309195A FR2857985B1 (en) 2003-07-22 2003-07-22 MACHINE FOR WIRING / TORSIONING AND CONTINUOUS FIXING OF WIRES
PCT/FR2004/050321 WO2005010251A2 (en) 2003-07-22 2004-07-09 Machine for yarn cabling/twisting and continuous setting

Publications (2)

Publication Number Publication Date
EP1646740A2 true EP1646740A2 (en) 2006-04-19
EP1646740B1 EP1646740B1 (en) 2008-09-03

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EP (1) EP1646740B1 (en)
CN (1) CN1894450A (en)
AT (1) ATE407241T1 (en)
AU (1) AU2004259883A1 (en)
DE (1) DE602004016338D1 (en)
FR (1) FR2857985B1 (en)
WO (1) WO2005010251A2 (en)

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WO2005010251A9 (en) 2005-05-19
AU2004259883A1 (en) 2005-02-03
ATE407241T1 (en) 2008-09-15
WO2005010251A2 (en) 2005-02-03
CN1894450A (en) 2007-01-10
US20070095043A1 (en) 2007-05-03
EP1646740B1 (en) 2008-09-03
WO2005010251A3 (en) 2005-03-24
FR2857985A1 (en) 2005-01-28
FR2857985B1 (en) 2006-02-10
DE602004016338D1 (en) 2008-10-16

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