EP2130957A1 - Method for cabling synthetic wires by twisting them together - Google Patents

Method for cabling synthetic wires by twisting them together Download PDF

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Publication number
EP2130957A1
EP2130957A1 EP09370009A EP09370009A EP2130957A1 EP 2130957 A1 EP2130957 A1 EP 2130957A1 EP 09370009 A EP09370009 A EP 09370009A EP 09370009 A EP09370009 A EP 09370009A EP 2130957 A1 EP2130957 A1 EP 2130957A1
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EP
European Patent Office
Prior art keywords
textured
flat
wire
coil
yarn
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.)
Withdrawn
Application number
EP09370009A
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German (de)
French (fr)
Inventor
Yan Chanay
Eric Vincent
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Trocme Vallart International
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Trocme Vallart International
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Publication date
Application filed by Trocme Vallart International filed Critical Trocme Vallart International
Publication of EP2130957A1 publication Critical patent/EP2130957A1/en
Withdrawn legal-status Critical Current

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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
    • 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
    • D02G3/44—Yarns or threads characterised by the purpose for which they are designed
    • D02G3/445—Yarns or threads for use in floor fabrics
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2505/00—Industrial
    • D10B2505/20—Industrial for civil engineering, e.g. geotextiles
    • D10B2505/202—Artificial grass

Definitions

  • the invention relates to a method for wiring synthetic threads by being twisted one on top of the other, in which at least one flat thread is associated with at least one textured thread having a crimp per se.
  • the invention relates to the field of artificial turf, also called artificial turf.
  • artificial turf also called artificial turf.
  • the method of assembling synthetic threads by slight twisting is known to those skilled in the art as cabling or twisting.
  • This preliminary step makes it possible to form a wire cable for feeding a tufting machine.
  • a synthetic turf is generally made from synthetic threads inserted in tufts in a carrier in the form of a PVC sheet or elastomer.
  • synthetic threads are simultaneously inserted into the support by the tufting machine, the threads passing through the needle cat at the same time.
  • the tufting machine makes it possible to insert the threads in the support forming continuous loops. The loops are then cut to leave only tufts.
  • the support can be raised in temperature in order to heat-seal the tufts with the support.
  • This method is well controlled for traditional synthetic turf for which the synthetic son are only flat son. It allows the manufacture of turf whose tufts are then formed of said flat son. In order to limit the risks of falling or burning, the bottom of such a turf may be provided with elastomer granules.
  • the son cable obtained by traditional methods is nervous.
  • the twisted thread tends to twist.
  • the inventors have found during the unwinding of the cable withdrawal of the textured yarn with respect to the son son forming an accumulation of son, which causes breaks.
  • Document is also known KR-B1-950 000 015 a synthetic turf and its method of manufacture. This turf seems to be made only from textured synthetic threads.
  • Document is known WO 2004/077814 a synthetic turf that consists of individual threads and composite threads. Composite yarns consist of strips with longitudinal slots to form interconnected filaments.
  • the object of the present invention is to overcome the aforementioned drawbacks by proposing a method for wiring synthetic threads in which at least one flat thread is at least continuously associated with at least one textured thread, forming a good thread. holding, limiting tendrils, and accumulations of threads.
  • Another object of the present invention is to propose a wiring installation in which at least one flat synthetic wire and at least one textured synthetic wire are assembled by twisting them, making it possible to implement the method according to the invention.
  • the invention relates to a method of wiring synthetic threads in the field of artificial turf, in which at least one flat thread and at least one textured yarn, having a crimp per se, are continuously associated with one another by twisting them one by one. on the other, from at least one coil of flat wires and at least one coil of textured wires.
  • the tension of the threads is balanced during unwinding of said bobbins in such a way as, on the one hand, to stretch the textured yarn thereby decreasing the crimping of said yarn and, on the other hand, to allow a stable interlocking between said at least one textured yarn and said at least one flat yarn, preventing the retraction of said textured yarn.
  • the invention also relates to the use of wire cabling, obtained according to the method according to the invention, for the formation of loops on a support then the tuft formation by the cutting of said loops.
  • the support consisting in particular of a synthetic sheet, can then be heated to cause the withdrawal of the textured yarns to the bottom.
  • the invention arose from the desire of the inventors to make a cable of flat and textured son holding improved, limiting the tendrils during unwinding and removal of textured son in the cable to prevent their accumulation.
  • the invention relates to a method of wiring wires synthetic materials in the field of artificial turf, in which at least one flat thread 1, 2, and at least one textured thread 3, having a crimp per se, is continuously associated.
  • the son 1, 2, 3 are associated by their rotation on one another from at least one coil 5, 6 of flat wire and at least one coil 4 of textured wire.
  • the tension of the threads during the unwinding of said bobbins 4, 5, 6 is balanced in such a way as, on the one hand, to stretch the textured yarn 3 thus decreasing the crimping of said yarn 3, and on the other hand to allow a stable interlocking between said at least one textured yarn 3 and said at least one flat yarn 1, 2, thereby preventing the retraction of said textured yarn 3 into the cable.
  • the inventors have in particular succeeded in implementing this method by a diverted use of a coronet plant used in the field of transforming the wire for twisting (double twist processes). In order to be able to implement the method, this installation also had to be modified.
  • FIG. figure 2 The method and the installation according to the invention are illustrated in FIG. figure 2 , partially, and in more detail to the figure 3 . It should be noted that this embodiment is not limited in particular as to the number of son used to form the cable.
  • a rotating spindle 10 makes it possible to rotate the threads 1, 2, 3 and their continuous engagement for the production of the cable according to the invention.
  • the textured yarn package 4 is formed of a winding of yarns around a mandrel 13 placed on a support 14 which is supported by the axis of the spindle 10.
  • This support 14 is secured coaxially to the axis of the pin 10 by means such as a ball bearing.
  • a retaining means prevents the support 14 from rotating on itself so that the coil 4 and its support 14 do not rotate.
  • the textured yarn is unwound by means of a coronel 7, a device known per se, which consists of an arm capable of rotating freely around the axis of the spindle 10, having at its end a guide wire 71 .
  • the coronel 7 accompanies the wire 3 in its unwinding and is advantageously provided with braking means, especially magnetic, of the friction type, or with a ballast, in order to control the unwinding tension of the textured yarn 3.
  • the resisting torque of the braking means must be sufficient to be capable, as shown in detail for the figure 4 to reduce the crimp of the textured yarn by stretching it. As such, the resistive torque needed to "straighten” the textured yarn is greater than that of twisting methods of the state of the art. Particular attention will be paid to the adjustment of the resisting torque of the braking means, for example in the case of a magnetic braking coronel, in particular by increasing the number of magnets.
  • the coils 5, 6 of flat wire may be placed in particular on the creel of the machine and are flanged coils which take place under the traction of the flat wire 1, 2.
  • the tension of the flat wires 1, 2 is controlled by means of braking in rotation of the coils.
  • braking means may be, for example, friction type, magnetic type, or other.
  • the coils 5, 6 are provided with ball bearings. This controls the tension of the flat threads
  • the two coils of flat wire 5 and 6 are unwound, flat son 1 and 2 guided from below to the bottom of the device 18 allowing the torsion of the son.
  • the flat wires 1, 2 then pass through a wire guide 16 integral in rotation with the pin 10, in particular made at a deflector 15.
  • the rotational drive of the pin 10 thus causes the two flat wires to be rotated. 1 and 2, which form the generatrix of a "balloon" bypassing the textured wire spool 4 and its support 14, and then embracing with said textured flat wire, downstream of the coronel 7 and upstream of a guide wire 17.
  • the flat wires 1, 2 and the textured wires 3 become entangled and pass through the upper part of the device 18, the wire guide 17, towed downstream by a call roller 9.
  • the formed wire cable is then wound on a coil receiving 11 driven by a motorized cylinder 28.
  • the receiving coil is the only call device and replaces the roller 9.
  • the twist of the son 1, 2, 3 can be between 45 and 75 revolutions Z / m.
  • the twisting of the three wires is 60 turns Z / m for a spindle speed of 2000 revolutions / minute and therefore a speed of 33 rpm.
  • the coronel is then driven at a speed below 150 rpm, at about 100 rpm.
  • the installation is equipped with a coronel 7 provided with braking means permitting the reeling of said at least one textured yarn package.
  • Said at least one coil of flat wire is rotatable so as to unwind under the traction of said flat wire.
  • Said coil of flat wire is provided with means 8 for rotating braking.
  • said textured yarn package may be fixed so that the package and its carrier 14 do not rotate.
  • a call roller 9 allows in particular the unwinding of the son, a rotating pin 10 provided with a wire guide 16 for the torsion of the son.
  • a receiving coil 11, in particular driven by a cylinder 28, allows the winding of the wire cable 12.
  • FIG. 5 To the figure 5 is illustrated a non-limiting example of a son cable 12 obtained according to the method according to the invention.
  • This cable is obtained from two coils of flat wires 5, 6.
  • Each of the flat wires 1; 2 is in particular composed of four filaments (4,000 decitex per coil).
  • the textured yarn is in particular an eight-filament yarn (6,000 decitex per spool).
  • the son cable according to the invention finds a particular application for the formation of loops on a support such as an elastomeric sheet or PVC and the sectioning of the loops to leave only tufts.
  • the cable is inserted by a tufting machine.
  • a son cable 12 according to the invention is inserted on a support 20 forming loops.
  • the next step is to cut the loops to leave only tufts.
  • the elevation of the temperature of the support then makes it possible to ensure the retraction of the textured yarns to the bottom and the heat-sealing of the yarns to the support.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The method involves continuously associating synthetic flat yarns (1, 2) and a synthetic textured yarn (3) by tensioning the flat and textured yarns on one another. Tensions of the flat and textured yarns are balanced during unwinding of flat yarn bobbins (5, 6) and a textured yarn bobbin (4) in a manner to extend the textured yarn by decreasing crimps of the textured yarn and to permit stable squeezing between the textured yarn and the flat yarns. Reeling tension of the textured yarn is controlled by a balk (7). An independent claim is also included for a twisting installation comprising a textured yarn bobbin.

Description

L'invention concerne un procédé de câblage de fils synthétiques par leur mise en torsion l'un sur l'autre, dans lequel on associe au moins un fil plat et au moins un fil texturé présentant une frisure per se.The invention relates to a method for wiring synthetic threads by being twisted one on top of the other, in which at least one flat thread is associated with at least one textured thread having a crimp per se.

L'invention concerne le domaine du gazon synthétique, encore appelé gazon artificiel. Dans ce domaine, le procédé qui consiste à assembler des fils synthétiques par une légère mise en torsion est connu par l'homme du métier sous le nom de câblage ou retordage. Cette étape préalable permet de former un câble de fils destiné à alimenter une machine à touffeter.The invention relates to the field of artificial turf, also called artificial turf. In this field, the method of assembling synthetic threads by slight twisting is known to those skilled in the art as cabling or twisting. This preliminary step makes it possible to form a wire cable for feeding a tufting machine.

Un gazon synthétique est généralement fabriqué à partir de fils synthétiques insérés en touffes dans un support se présentant sous la forme d'une feuille PVC ou en élastomère. Afin de créer les touffes, plusieurs fils synthétiques sont insérés simultanément dans le support par la machine à touffeter, les fils traversant en même temps le chat de l'aiguille. La machine à touffeter permet d'insérer les fils dans le support en formant des boucles en continu. Les boucles sont ensuite sectionnées pour ne laisser que des touffes. Pour assurer la solidarisation des touffes, le support peut être élevé en température afin d'assurer le thermosoudage des touffes avec le support.A synthetic turf is generally made from synthetic threads inserted in tufts in a carrier in the form of a PVC sheet or elastomer. In order to create the tufts, several synthetic threads are simultaneously inserted into the support by the tufting machine, the threads passing through the needle cat at the same time. The tufting machine makes it possible to insert the threads in the support forming continuous loops. The loops are then cut to leave only tufts. To ensure the joining of the tufts, the support can be raised in temperature in order to heat-seal the tufts with the support.

Afin de faciliter le passage de plusieurs fils dans le chat de l'aiguille, il est ainsi connu ledit procédé de câblage ou retordage dans lequel on associe préalablement les fils synthétiques entre eux par une légère torsion.In order to facilitate the passage of several threads in the cat of the needle, it is thus known said cabling or twisting process in which the synthetic threads are previously associated with each other by a slight twist.

Ce procédé est bien maîtrisé pour des gazons synthétiques traditionnels pour lesquels les fils synthétiques sont uniquement des fils plats. Il permet la fabrication de gazon dont les touffes sont alors constituées desdits fils plats. Afin de limiter les risques de chute ou de brûlure, le fond d'un tel gazon peut être prévu de granulés en élastomère.This method is well controlled for traditional synthetic turf for which the synthetic son are only flat son. It allows the manufacture of turf whose tufts are then formed of said flat son. In order to limit the risks of falling or burning, the bottom of such a turf may be provided with elastomer granules.

Récemment, a été mis au point un nouveau type de gazon artificiel constitué non seulement de fils plats, mais également de fils texturés, c'est-à-dire de fils présentant une frisure per se, c'est-à-dire une légère ondulation du fil structurelle en tant que telle. Un gazon similaire est connu du document US-3.940.522 Recently, a new type of artificial turf has been developed consisting not only of flat yarns, but also of textured yarns, ie yarns having a crimp per se, i.e. undulation of the structural wire as such. A similar grass is known from the document US 3940522

Le procédé de fabrication de ce type de gazon synthétique est sensiblement le même que celui des gazons constitués uniquement de fils plats. L'étape de chauffage du support de ce nouveau type de gazon permet toutefois de provoquer la rétractation des fils texturés vers le fond sous l'effet de la chaleur. On obtient ainsi un gazon beaucoup plus ressemblant à une pelouse naturelle avec à la fois un aspect séché dans le fond, vert, jeune pousse. Ce gazon est moins abrasif grâce aux fils texturés qui tapissent le fond du gazon, l'ajout de granulés en élastomère dans le fond du gazon n'est ainsi pas nécessaire.The manufacturing process of this type of synthetic turf is substantially the same as that of lawns consisting only of flat threads. The step of heating the support of this new type of turf, however, makes it possible to cause the retraction of the textured yarns to the bottom under the effect of heat. This results in a much more lawn-like grass with both a dried-up appearance in the background, green, young growth. This grass is less abrasive thanks to textured yarns lining the bottom of the grass, so adding elastomer granules to the grass bottom is not necessary.

Cela étant, lors de la fabrication de ce type de gazon, on constate toutefois une augmentation des casses de fils sur la machine à touffeter. Or, les inventeurs ont identifié la cause de ce problème comme un mauvais câblage des fils. Ils en ont ainsi conclu que les procédés traditionnels de câblage ou retordage de fils ne sont pas adaptés pour ce type de gazon.However, during the manufacture of this type of turf, there is however an increase in the breakage of threads on the tufting machine. However, the inventors have identified the cause of this problem as bad wire wiring. They thus concluded that traditional methods of wiring or twisting yarns are not suitable for this type of turf.

En effet, le câble de fils obtenu par les méthodes traditionnelles, et qui comprend des fils plats et des fils texturés, est nerveux. Lorsqu'il est dévidé, le fil retordu a tendance à vriller. Plus particulièrement, les inventeurs ont constaté lors du dévidage du câble un retrait du fil texturé par rapport aux fils plats formant une accumulation de fils, ce qui provoque les casses.Indeed, the son cable obtained by traditional methods, and which includes flat son and textured son, is nervous. When unwound, the twisted thread tends to twist. More particularly, the inventors have found during the unwinding of the cable withdrawal of the textured yarn with respect to the son son forming an accumulation of son, which causes breaks.

On connaît également du document KR-B1-950 000 015 un gazon synthétique et son procédé de fabrication. Ce gazon semble uniquement être constitué à partir de fils synthétiques texturés. On connaît du document WO 2004/077814 un gazon synthétique qui est constitué de fils individuels et de fils composites. Les fils composites sont constitués par des bandes pourvues de fentes longitudinales afin de former des filaments interconnectés.Document is also known KR-B1-950 000 015 a synthetic turf and its method of manufacture. This turf seems to be made only from textured synthetic threads. Document is known WO 2004/077814 a synthetic turf that consists of individual threads and composite threads. Composite yarns consist of strips with longitudinal slots to form interconnected filaments.

Aussi, le but de la présente invention est de pallier les inconvénients précités en proposant un procédé de câblage de fils synthétiques dans lequel on associe, en continu, au moins un fil plat et au moins un fil texturé, permettant de former un câble de bonne tenue, limitant les vrilles, et les accumulations de fils.Also, the object of the present invention is to overcome the aforementioned drawbacks by proposing a method for wiring synthetic threads in which at least one flat thread is at least continuously associated with at least one textured thread, forming a good thread. holding, limiting tendrils, and accumulations of threads.

Un autre but de la présente invention est de proposer une installation de câblage dans laquelle on assemble par leur mise en torsion au moins un fil synthétique plat et au moins un fil synthétique texturé, permettant la mise en oeuvre du procédé conforme à l'invention.Another object of the present invention is to propose a wiring installation in which at least one flat synthetic wire and at least one textured synthetic wire are assembled by twisting them, making it possible to implement the method according to the invention.

D'autres buts et avantages de la présente invention apparaîtront au cours de la description qui va suivre, qui n'est donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects and advantages of the present invention will become apparent from the description which follows, which is given for information only and which is not intended to limit it.

L'invention concerne un procédé de câblage de fils synthétiques dans le domaine du gazon artificiel, dans lequel on associe en continu au moins un fil plat et au moins un fil texturé, présentant une frisure per se, par leur mise en torsion l'un sur l'autre, à partir d'au moins une bobine de fils plats et au moins d'une bobine de fils texturés.The invention relates to a method of wiring synthetic threads in the field of artificial turf, in which at least one flat thread and at least one textured yarn, having a crimp per se, are continuously associated with one another by twisting them one by one. on the other, from at least one coil of flat wires and at least one coil of textured wires.

Selon l'invention, on équilibre la tension des fils lors du dévidage desdites bobines de telle façon, d'une part, à étirer le fil texturé en diminuant ainsi la frisure dudit fil et, d'autre part, à permettre un enlacement stable entre ledit au moins un fil texturé et ledit au moins un fil plat, interdisant la rétractation dudit fil texturé.According to the invention, the tension of the threads is balanced during unwinding of said bobbins in such a way as, on the one hand, to stretch the textured yarn thereby decreasing the crimping of said yarn and, on the other hand, to allow a stable interlocking between said at least one textured yarn and said at least one flat yarn, preventing the retraction of said textured yarn.

L'invention concerne également une installation de câblage dans lequel on associe, par leur mise en torsion, au moins un fil plat, et au moins un fil texturé, comprenant au moins :

  • au moins une bobine de fil texturé,
  • au moins une bobine de fil plat,
  • des moyens pour provoquer en continu la mise en torsion dudit au moins un fil plat et dudit au moins un fil texturé l'un sur l'autre afin de former un câble de fils, comprenant au moins un rouleau d'appel permettant le dévidement des fils, une broche tournante permettant la mise en torsion des fils,
  • une coronelle pourvue de moyens de freinage permettant le dévidement de ladite au moins une bobine de fil texturé,
  • ladite au moins une bobine de fil plat est mobile en rotation afin de se dérouler sous la traction dudit fil plat, ladite bobine de fil plat étant pourvue de moyens de freinage en rotation.
The invention also relates to a wiring installation in which the torsion is associated with at least one flat wire, and at least one textured wire, comprising at least:
  • at least one spool of textured yarn,
  • at least one coil of flat wire,
  • means for continuously causing the twisting of said at least one flat wire and said at least one textured wire to one another to form a wire cable, comprising at least one call roller for the unwinding of the wires. son, a rotating spindle allowing the twisting of the threads,
  • a coronel provided with braking means enabling the reeling of said at least one textured yarn package,
  • said at least one coil of flat wire is rotatable to unwind under the traction of said flat wire, said flat wire coil being provided with rotational braking means.

L'invention concerne également l'utilisation du câblage de fils, obtenus selon le procédé conforme à l'invention, pour la formation de boucles sur un support puis la formation de touffes par le sectionnement desdites boucles.The invention also relates to the use of wire cabling, obtained according to the method according to the invention, for the formation of loops on a support then the tuft formation by the cutting of said loops.

Le support, constitué notamment d'une feuille synthétique, peut être ensuite chauffé pour provoquer le retrait des fils texturés vers le fond.The support, consisting in particular of a synthetic sheet, can then be heated to cause the withdrawal of the textured yarns to the bottom.

L'invention sera mieux comprise à la lecture de la description suivante accompagnée des dessins en annexe parmi lesquels :

  • la figure 1 est une vue de dessus illustrant schématiquement deux rangées d'installation conforme à l'invention,
  • la figure 2 est une illustration simplifiée d'une installation conforme à l'invention selon un mode de réalisation,
  • la figure 3 est une vue de détail de la figure 2 illustrant la mise en torsion de deux fils plats sur un fil texturé, le fil texturé étant dévidé au moyen d'une coronelle,
  • la figure 4 est une vue de détail illustrant le fil texturé en amont et en aval du guide-fil de la coronelle tel qu'illustré à la figure 3,
  • la figure 5 est une illustration d'un câble de fils obtenu par le procédé conforme à l'invention,
  • la figure 6 est une vue du câble tel qu'illustré à la figure 5, à son extrémité, pour lequel les fils texturés et plats ont été démêlés,
  • la figure 7 est une vue schématique de l'utilisation du câble de fils pour former des boucles sur un support puis la sectionner,
  • la figure 8 illustre selon une coupe un exemple de gazon synthétique qui peut être obtenu par le procédé conforme à l'invention.
The invention will be better understood on reading the following description accompanied by the appended drawings among which:
  • the figure 1 is a view from above schematically illustrating two rows of installation according to the invention,
  • the figure 2 is a simplified illustration of an installation according to the invention according to one embodiment,
  • the figure 3 is a detail view of the figure 2 illustrating the twisting of two flat yarns on a textured yarn, the textured yarn being unwound by means of a coronel,
  • the figure 4 is a detail view illustrating the textured yarn upstream and downstream of the yarn guide of the coronel as illustrated in FIG. figure 3 ,
  • the figure 5 is an illustration of a son cable obtained by the process according to the invention,
  • the figure 6 is a view of the cable as shown in figure 5 , at its end, for which the textured and flat threads were unraveled,
  • the figure 7 is a schematic view of the use of the cable of wires to form loops on a support then to cut it,
  • the figure 8 illustrates in section an example of synthetic turf that can be obtained by the method according to the invention.

L'invention est née de la volonté des inventeurs de réaliser un câble de fils plats et texturés de maintien amélioré, limitant les vrilles lors du dévidage ainsi que le retrait de fils texturés dans le câble afin d'éviter leur accumulation.The invention arose from the desire of the inventors to make a cable of flat and textured son holding improved, limiting the tendrils during unwinding and removal of textured son in the cable to prevent their accumulation.

L'invention concerne un procédé de câblage de fils synthétiques dans le domaine du gazon artificiel, dans lequel on associe en continu au moins un fil plat 1, 2, et au moins un fil texturé 3, présentant une frisure per se. Les fils 1, 2, 3 sont associés par leur mise en rotation l'un sur l'autre à partir d'au moins une bobine 5, 6 de fil plat et d'au moins une bobine 4 de fil texturé.The invention relates to a method of wiring wires synthetic materials in the field of artificial turf, in which at least one flat thread 1, 2, and at least one textured thread 3, having a crimp per se, is continuously associated. The son 1, 2, 3 are associated by their rotation on one another from at least one coil 5, 6 of flat wire and at least one coil 4 of textured wire.

Selon l'invention, on équilibre la tension des fils lors du dévidage desdites bobines 4, 5, 6 de telle façon, d'une part, à étirer le fil texturé 3 en diminuant ainsi la frisure dudit fil 3, et d'autre part, à permettre un enlacement stable entre ledit au moins un fil texturé 3 et ledit au moins un fil plat 1, 2, interdisant ainsi la rétractation dudit fil texturé 3 dans le câble.According to the invention, the tension of the threads during the unwinding of said bobbins 4, 5, 6 is balanced in such a way as, on the one hand, to stretch the textured yarn 3 thus decreasing the crimping of said yarn 3, and on the other hand to allow a stable interlocking between said at least one textured yarn 3 and said at least one flat yarn 1, 2, thereby preventing the retraction of said textured yarn 3 into the cable.

Les inventeurs ont notamment réussi à mettre en oeuvre ce procédé par une utilisation détournée d'une installation à coronelle utilisée dans le domaine de la transformation du fil pour le retordage (procédés à double torsion). Afin de pouvoir mettre en oeuvre le procédé, cette installation a par ailleurs dû être modifiée.The inventors have in particular succeeded in implementing this method by a diverted use of a coronet plant used in the field of transforming the wire for twisting (double twist processes). In order to be able to implement the method, this installation also had to be modified.

Le principe général du procédé à torsion multiple et l'installation permettant la mise en oeuvre de ce procédé sont notamment décrits et illustrés dans le document FR-2.887.237 .The general principle of the multiple torsion method and the installation allowing the implementation of this method are described and illustrated in particular in the document FR-2887237 .

Le procédé et l'installation conformes à l'invention sont illustrés à la figure 2, partiellement, et plus en détail à la figure 3. Il est à noter que cet exemple de réalisation n'est pas limitatif notamment quant au nombre de fils utilisés pour former le câble.The method and the installation according to the invention are illustrated in FIG. figure 2 , partially, and in more detail to the figure 3 . It should be noted that this embodiment is not limited in particular as to the number of son used to form the cable.

En se reportant aux figures 2 et 3, les bobines de fil plat et de fil texturé sont dévidées à une vitesse d'appel V, tractées par des organes d'appel 9, 11.Referring to figures 2 and 3 , the coils of flat wire and textured wire are unwound at a call speed V, pulled by callers 9, 11.

En amont de ces organes, une broche tournante 10 permet la mise en rotation des fils 1, 2, 3 et leur enlacement en continu pour la réalisation du câble conforme à l'invention.Upstream of these members, a rotating spindle 10 makes it possible to rotate the threads 1, 2, 3 and their continuous engagement for the production of the cable according to the invention.

Telle qu'illustrée à la figure 3, la bobine de fil texturé 4 est formée d'un enroulement de fils autour d'un mandrin 13 placé sur un support 14 qui est supporté par l'axe de la broche 10.As illustrated in figure 3 , the textured yarn package 4 is formed of a winding of yarns around a mandrel 13 placed on a support 14 which is supported by the axis of the spindle 10.

Ce support 14 est assujetti coaxialement à l'axe de la broche 10 par un moyen tel qu'un roulement à bille. Un moyen de retenue interdit au support 14 de tourner sur lui-même de sorte que la bobine 4 et son support 14 ne tournent pas.This support 14 is secured coaxially to the axis of the pin 10 by means such as a ball bearing. A retaining means prevents the support 14 from rotating on itself so that the coil 4 and its support 14 do not rotate.

Le fil texturé est dévidé au moyen d'une coronelle 7, dispositif connu en soi, qui est constitué d'un bras apte à tourner librement en rotation autour de l'axe de la broche 10, présentant à son extrémité un guide-fil 71.The textured yarn is unwound by means of a coronel 7, a device known per se, which consists of an arm capable of rotating freely around the axis of the spindle 10, having at its end a guide wire 71 .

La coronelle 7 accompagne le fil 3 dans son dévidement et est avantageusement pourvue de moyens de freinage, notamment magnétiques, du type à friction, ou avec un lest, afin de contrôler la tension de dévidage du fil texturé 3.The coronel 7 accompanies the wire 3 in its unwinding and is advantageously provided with braking means, especially magnetic, of the friction type, or with a ballast, in order to control the unwinding tension of the textured yarn 3.

Le couple résistant des moyens de freinage doit être suffisant pour être capable, tel qu'illustré en vue de détail à la figure 4, de diminuer la frisure du fil texturé en l'étirant. A ce titre, le couple résistant nécessaire pour « défriser » le fil texturé est supérieur à celui des procédés de retordage de l'état de l'art. Une attention particulière sera portée pour le réglage du couple résistant des moyens de freinage, par exemple dans le cas d'une coronelle à freinage magnétique, notamment en augmentant le nombre d'aimants.The resisting torque of the braking means must be sufficient to be capable, as shown in detail for the figure 4 to reduce the crimp of the textured yarn by stretching it. As such, the resistive torque needed to "straighten" the textured yarn is greater than that of twisting methods of the state of the art. Particular attention will be paid to the adjustment of the resisting torque of the braking means, for example in the case of a magnetic braking coronel, in particular by increasing the number of magnets.

Telles qu'illustrées à la figure 2, les bobines 5, 6 de fil plat peuvent être placées notamment sur le cantre de la machine et sont des bobines à flange qui se déroulent sous la traction du fil plat 1, 2.As illustrated in figure 2 , the coils 5, 6 of flat wire may be placed in particular on the creel of the machine and are flanged coils which take place under the traction of the flat wire 1, 2.

Avantageusement, on contrôle la tension des fils plats 1, 2 grâce à des moyens de freinage en rotation des bobines. Ces moyens de freinage peuvent être, par exemple, du type à friction, du type magnétique, ou autre.Advantageously, the tension of the flat wires 1, 2 is controlled by means of braking in rotation of the coils. These braking means may be, for example, friction type, magnetic type, or other.

Afin d'opposer un couple résistant sans à-coup lors du déroulement des bobines à fil plat, les bobines 5, 6 sont pourvues de roulements à billes. On contrôle ainsi que la tension des fils platsIn order to oppose a resistant torque smoothly during the unwinding of the flat-wire coils, the coils 5, 6 are provided with ball bearings. This controls the tension of the flat threads

Telles qu'illustrées à la figure 2, les deux bobines de fil plat 5 et 6 sont dévidées, les fils plats 1 et 2 guidés par le bas jusqu'en dessous du dispositif 18 permettant la mise en torsion des fils.As illustrated in figure 2 , the two coils of flat wire 5 and 6 are unwound, flat son 1 and 2 guided from below to the bottom of the device 18 allowing the torsion of the son.

Les fils plats 1, 2 traversent alors un guide-fil 16 solidaire en rotation de la broche 10, notamment pratiqué au niveau d'un déflecteur 15. L'entraînement en rotation de la broche 10 provoque ainsi la mise en rotation des deux fils plats 1 et 2, qui forment la génératrice d'un « ballon » en contournant la bobine de fil texturé 4 et son support 14, pour ensuite s'enlacer avec ledit fil plat texturé, en aval de la coronelle 7 et en amont d'un guide fil 17.The flat wires 1, 2 then pass through a wire guide 16 integral in rotation with the pin 10, in particular made at a deflector 15. The rotational drive of the pin 10 thus causes the two flat wires to be rotated. 1 and 2, which form the generatrix of a "balloon" bypassing the textured wire spool 4 and its support 14, and then embracing with said textured flat wire, downstream of the coronel 7 and upstream of a guide wire 17.

Les fils plats 1, 2 et les fils texturés 3 s'enlacent et traversent en partie haute du dispositif 18 le guide-fil 17, tracté en aval par un rouleau d'appel 9. Le câble de fils formé est ensuite enroulé sur une bobine de réception 11 entraînée par un cylindre 28 motorisé. Selon un exemple de réalisation, la bobine de réception est le seul organe d'appel et remplace le rouleau 9.The flat wires 1, 2 and the textured wires 3 become entangled and pass through the upper part of the device 18, the wire guide 17, towed downstream by a call roller 9. The formed wire cable is then wound on a coil receiving 11 driven by a motorized cylinder 28. According to an exemplary embodiment, the receiving coil is the only call device and replaces the roller 9.

La torsion des fils 1, 2, 3 peut être comprise entre 45 et 75 tours Z/m.The twist of the son 1, 2, 3 can be between 45 and 75 revolutions Z / m.

Selon un exemple, la torsion des trois fils est de 60 tours Z/m pour une vitesse de broche de 2000 tours/minute et donc une vitesse d'appel de 33 tours/minute. La coronelle est alors entraînée à une vitesse inférieure à 150 tours/minute, environ à 100 tours/minute.In one example, the twisting of the three wires is 60 turns Z / m for a spindle speed of 2000 revolutions / minute and therefore a speed of 33 rpm. The coronel is then driven at a speed below 150 rpm, at about 100 rpm.

L'invention concerne également une installation de câblage dans laquelle on associe par leur mise en torsion au moins un fil synthétique plat 1, 2 et au moins un fil synthétique texturé 3 comprenant au moins :

  • une bobine 4 de fil texturé,
  • une bobine de fil plat,
  • des moyens pour provoquer en continu la mise en torsion dudit au moins un fil plat et dudit au moins un fil texturé l'un sur l'autre afin de former un câble de fils.
The invention also relates to a wiring installation in which at least one flat synthetic wire 1, 2 and at least one textured synthetic thread 3 comprising at least:
  • a coil 4 of textured yarn,
  • a coil of flat wire,
  • means for continuously causing the twisting of said at least one flat wire and said at least one textured wire to one another to form a wire cable.

L'installation est équipée d'une coronelle 7 pourvue de moyens de freinage permettant le dévidement de ladite au moins une bobine de fil texturé.The installation is equipped with a coronel 7 provided with braking means permitting the reeling of said at least one textured yarn package.

Ladite au moins une bobine de fil plat est mobile en rotation afin de se dérouler sous la traction dudit fil plat. Ladite bobine de fil plat est pourvue de moyens 8 de freinage en rotation.Said at least one coil of flat wire is rotatable so as to unwind under the traction of said flat wire. Said coil of flat wire is provided with means 8 for rotating braking.

Il pourra notamment s'agir de l'installation précédemment décrite pour la mise en oeuvre du procédé.It may especially be the installation previously described for the implementation of the method.

Aussi, ladite bobine de fil texturé peut être prévue fixe de telle façon que la bobine et son support 14 ne tournent pas. Tel que précédemment décrit, un rouleau d'appel 9 permet notamment le dévidement des fils, une broche tournante 10 pourvue d'un guide-fil 16 permettant la mise en torsion des fils. Une bobine de réception 11, notamment entraînée par un cylindre 28, permet le bobinage du câble de fils 12.Also, said textured yarn package may be fixed so that the package and its carrier 14 do not rotate. As previously described, a call roller 9 allows in particular the unwinding of the son, a rotating pin 10 provided with a wire guide 16 for the torsion of the son. A receiving coil 11, in particular driven by a cylinder 28, allows the winding of the wire cable 12.

A la figure 5 est illustré un exemple non limitatif d'un câble de fils 12 obtenu selon le procédé conforme à l'invention.To the figure 5 is illustrated a non-limiting example of a son cable 12 obtained according to the method according to the invention.

Ce câble est obtenu à partir de deux bobines de fils plats 5, 6. Chacun des fils plats 1 ; 2 est notamment composé de quatre filaments (4.000 décitex par bobine). Le fil texturé est notamment un fil à huit filaments (6.000 décitex par bobine).This cable is obtained from two coils of flat wires 5, 6. Each of the flat wires 1; 2 is in particular composed of four filaments (4,000 decitex per coil). The textured yarn is in particular an eight-filament yarn (6,000 decitex per spool).

Le câble de fils conforme à l'invention trouve une application particulière pour la formation de boucles sur un support tel qu'une feuille en élastomère ou PVC puis le sectionnement des boucles afin de ne laisser que des touffes. Le câble est inséré par une machine à touffeter.The son cable according to the invention finds a particular application for the formation of loops on a support such as an elastomeric sheet or PVC and the sectioning of the loops to leave only tufts. The cable is inserted by a tufting machine.

Tel qu'illustré à la figure 7, un câble de fils 12 conforme à l'invention est inséré sur un support 20 en formant des boucles. L'étape suivante consiste à sectionner les boucles afin de ne laisser que des touffes. L'élévation de la température du support permet ensuite d'assurer la rétractation des fils texturés vers le fond et le thermosoudage des fils au support.As illustrated in figure 7 , a son cable 12 according to the invention is inserted on a support 20 forming loops. The next step is to cut the loops to leave only tufts. The elevation of the temperature of the support then makes it possible to ensure the retraction of the textured yarns to the bottom and the heat-sealing of the yarns to the support.

On obtient ainsi un gazon avec des touffes de fils plats et des fils texturés tapissant le fond du gazon (figure 8).This produces a grass with tufts of flat thread and textured threads lining the bottom of the grass ( figure 8 ).

Naturellement, d'autres modes de mise en oeuvre, à la portée de l'homme de l'art, auraient pu être envisagés sans pour autant sortir du cadre de l'invention défini par les revendications ci-après.Of course, other modes of implementation, within the reach of ordinary skill in the art, could have been envisaged without departing from the scope of the invention defined by the claims below.

Claims (10)

Procédé de câblage de fils synthétiques dans le domaine du gazon artificiel, dans lequel on associe en continu au moins un fil plat (1, 2) et au moins un fil texturé (3), présentant une frisure per se, par leur mise en torsion l'un sur l'autre, à partir d'au moins une bobine (5, 6) de fil plat, et d'au moins une bobine (4) de fil texturé, caractérisé en ce qu'on équilibre la tension des fils lors du dévidage desdites bobines (4, 5, 6) de telle façon, d'une part, à étirer le fil texturé (3) en diminuant ainsi la frisure dudit fil (3), et d'autre part, à permettre un enlacement stable entre ledit au moins un fil texturé et ledit au moins un fil plat interdisant la rétractation dudit fil texturé.Method of wiring synthetic threads in the field of artificial turf, in which at least one flat thread (1, 2) and at least one textured thread (3), having a crimp per se, are continuously associated by being twisted on one another, from at least one coil (5, 6) of flat wire, and at least one coil (4) of textured wire, characterized in that the tension of the wires is balanced during unwinding of said bobbins (4, 5, 6) in such a way as, on the one hand, to stretch the textured yarn (3) thus decreasing the crimping of said yarn (3), and on the other hand, to allow interlacing stable between said at least one textured yarn and said at least one flat yarn prohibiting the retraction of said textured yarn. Procédé selon la revendication 1, dans lequel on contrôle la tension de dévidage du fil texturé au moyen d'une coronelle (7) pourvue de moyens de freinage.Method according to claim 1, wherein the unwinding tension of the textured yarn is controlled by means of a coronet (7) provided with braking means. Procédé selon la revendication 2, dans lequel ladite coronelle (7) est à freinage magnétique ou est freinée par un lest ou encore un dispositif à friction.Method according to claim 2, wherein said coronel (7) is magnetic braking or is braked by a ballast or a friction device. Procédé selon la revendication 3, dans lequel ladite au moins une bobine (5 ; 6) de fil plat se déroule sous la traction du fil plat (1 ; 2) et dans lequel on contrôle la tension du fil plat (1 ; 2) grâce à des moyens de freinage (8) en rotation de ladite bobine.The method of claim 3, wherein said at least one coil (5; 6) of flat wire is under tension of the flat wire (1; 2) and wherein the tension of the flat wire (1; 2) is controlled by braking means (8) for rotating said coil. Procédé selon la revendication 4, dans lequel ladite au moins une bobine (5 ; 6) de fil plat est pourvue de roulements à billes.The method of claim 4, wherein said at least one coil (5; 6) of flat wire is provided with ball bearings. Procédé selon l'une des revendications 1 à 5, dans lequel la torsion des fils (1, 2, 3) est comprise entre 45 et 75 tours Z par mètre.Method according to one of claims 1 to 5, wherein the twist of the son (1, 2, 3) is between 45 and 75 turns Z per meter. Procédé selon l'une des revendications 1 à 6, dans lequel les fils (1, 2, 3) sont entraînés par au moins un rouleau d'appel (9), la mise en rotation des fils étant provoquée au moyen d'une broche tournante (10).Method according to one of claims 1 to 6, wherein the son (1, 2, 3) are driven by at least one roller call (9), the rotation of the son being caused by means of a pin rotating (10). Installation de câblage dans lequel on associe par leur mise en torsion au moins un fil synthétique plat (1, 2) et au moins un fil synthétique texturé (3) comprenant au moins : - une bobine (4) de fil texturé, - une bobine (5, 6) de fil plat, - des moyens (9, 10) pour provoquer en continu la mise en torsion dudit au moins un fil plat et dudit au moins un fil texturé l'un sur l'autre afin de former un câble de fils, comprenant au moins un rouleau d'appel (9) permettant le dévidement des fils, une broche tournante (10) permettant la mise en torsion des fils, - une coronelle (7) pourvue de moyens de freinage permettant le dévidement de ladite au moins une bobine (4) de fil texturé, le couple résistant des moyens de freinage étant suffisant pour diminuer la frissure du fil texturé en l'étirant, - ladite au moins une bobine (5, 6) de fil plat est mobile en rotation afin de se dérouler sous la traction dudit fil plat, ladite bobine de fil plat étant pourvue de moyens (8) de freinage en rotation. Wiring installation in which at least one flat synthetic wire (1, 2) and at least one textured synthetic wire (3) comprising at least: a coil (4) of textured yarn, a coil (5, 6) of flat wire, means (9, 10) for continuously causing the twisting of said at least one flat wire and said at least one textured wire to one another to form a wire cable, comprising at least one roll of call (9) allowing the unwinding of the wires, a rotating spindle (10) allowing the wires to be twisted, - A coronet (7) provided with braking means for the unwinding of said at least one coil (4) of textured yarn, the resistant torque of the braking means being sufficient to reduce the cracking of the textured yarn by stretching it, - Said at least one coil (5, 6) of flat wire is rotatable in order to unwind under the traction of said flat wire, said flat wire coil being provided with means (8) for braking in rotation. Installation selon la revendication 8, dans laquelle ladite au moins une bobine (5, 6) de fil plat est pourvue de roulements à billes.Apparatus according to claim 8, wherein said at least one coil (5, 6) of flat wire is provided with ball bearings. Utilisation du câble de fils obtenu selon le procédé des revendications 1 à 7 pour la formation de boucles sur un support puis le sectionnement des boucles afin de ne laisser que des touffes.Use of the son cable obtained according to the method of claims 1 to 7 for the formation of loops on a support and the sectioning loops to leave only tufts.
EP09370009A 2008-06-06 2009-06-05 Method for cabling synthetic wires by twisting them together Withdrawn EP2130957A1 (en)

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Application Number Priority Date Filing Date Title
FR0803159A FR2932194B1 (en) 2008-06-06 2008-06-06 PROCESS FOR WIRING SYNTHETIC WIRES BY TORING ON ONE ANOTHER

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940522A (en) 1971-05-27 1976-02-24 E. I. Du Pont De Nemours And Company Synthetic fibers and pile fabrics made therefrom
KR950000015B1 (en) 1992-02-07 1995-01-07 동양나이론 주식회사 Available artificial turf to wrar/crimp yarn
WO2004077814A1 (en) 2003-02-25 2004-09-10 Sharp Kabushiki Kaisha Image processing device
WO2004077914A2 (en) * 2003-03-05 2004-09-16 Domo Cabrita N.V. Synthetic turf
FR2887237A1 (en) 2005-06-21 2006-12-22 Rieter Textile Machinery Fr Yarn e.g. filament yarn, transformation process e.g. yarn simple twist process, monitoring method, involves evaluating yarn unwinding speed and related parameters of process based on quality representing amount of yarn wound on one bobbin

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940522A (en) 1971-05-27 1976-02-24 E. I. Du Pont De Nemours And Company Synthetic fibers and pile fabrics made therefrom
KR950000015B1 (en) 1992-02-07 1995-01-07 동양나이론 주식회사 Available artificial turf to wrar/crimp yarn
WO2004077814A1 (en) 2003-02-25 2004-09-10 Sharp Kabushiki Kaisha Image processing device
WO2004077914A2 (en) * 2003-03-05 2004-09-16 Domo Cabrita N.V. Synthetic turf
FR2887237A1 (en) 2005-06-21 2006-12-22 Rieter Textile Machinery Fr Yarn e.g. filament yarn, transformation process e.g. yarn simple twist process, monitoring method, involves evaluating yarn unwinding speed and related parameters of process based on quality representing amount of yarn wound on one bobbin

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FR2932194A1 (en) 2009-12-11

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