EP1308546B1 - Procédé de tissage d'un tissu à double couche - Google Patents

Procédé de tissage d'un tissu à double couche Download PDF

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Publication number
EP1308546B1
EP1308546B1 EP20020405850 EP02405850A EP1308546B1 EP 1308546 B1 EP1308546 B1 EP 1308546B1 EP 20020405850 EP20020405850 EP 20020405850 EP 02405850 A EP02405850 A EP 02405850A EP 1308546 B1 EP1308546 B1 EP 1308546B1
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EP
European Patent Office
Prior art keywords
fabric
accordance
drive roller
pressure roller
contact pressure
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.)
Expired - Lifetime
Application number
EP20020405850
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German (de)
English (en)
Other versions
EP1308546A1 (fr
Inventor
Willi Knecht
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.)
Itema Switzerland Ltd
Original Assignee
Sultex AG
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 Sultex AG filed Critical Sultex AG
Priority to EP20020405850 priority Critical patent/EP1308546B1/fr
Publication of EP1308546A1 publication Critical patent/EP1308546A1/fr
Application granted granted Critical
Publication of EP1308546B1 publication Critical patent/EP1308546B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D11/00—Double or multi-ply fabrics not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/20—Take-up motions; Cloth beams
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/22—Temples
    • D03J1/223—Temples acting on the full width of cloth

Definitions

  • the invention relates to a method for weaving a double-layered fabric and to applications of the method, in particular for the production of airbag fabrics.
  • the US-A-5,651,395 describes methods for making sacks for airbags, wherein double layer fabrics are produced for this production.
  • two-ply regions can be distinguished from single-ply. From the two-ply areas, each consisting of a lower and an upper fabric, the inflatable interior spaces of the bags are formed. In the single-layered areas warp threads, which are separated in the two-ply areas either in the lower or upper fabric, are crossed by binding measures to a common sub-fabric. From the single-layered areas that completely surround the two-ply, closed seams of the bags can be made.
  • the quality of the double-layered fabric for example for airbags - ie the so-called goods failure - high demands are made.
  • the warp and weft threads must be arranged uniformly and relatively dense. The deviation from a specified air permeability of the lower or upper fabric should be minimal. The fabric layers must therefore be as evenly as possible dense. The threads used must can withstand high loads in terms of tensile strength and ductility.
  • the double-layered fabric for airbags is a fitted product, namely a fabric that is manufactured to a precise size. On weaving machines, which are equipped in the usual way, the two-ply has unfavorable effects on the loss of goods, if the goods to be manufactured are:
  • the object of the invention is to provide an improved method for weaving a double-layered fabric, in which the disadvantageous wrinkling is avoided or less. This object is achieved by the method defined in claim 1.
  • the method for weaving a double-layered fabric is used in particular for the production of airbag fabrics. It is carried out with a weaving machine, which comprises a batten arrangement, which is arranged immediately after a stop edge (30), a deflecting element for the fabric and a drive roller between the batten and the cloth beam. With the drive roller and using suitable means, the fabric produced is transported away from the stop edge in such a way that the two layers of the fabric - the lower fabric or upper fabric - is acted upon with substantially symmetrical forces. It is the tissue in the expander assembly through a gap between two pulled stationary surfaces against frictional resistance and simultaneously stretched with lateral Breithaltern transverse to the transport direction. With a rotatable, applied in addition to the drive roller pressure roller, the tissue is driven, wherein the pressure roller, which forms the deflecting element, is in operative connection with the drive roller.
  • Fig. 1 schematically and only partially represents a loom in which a fabric removal is associated with the occurrence of adverse wrinkling. Shown are warp threads 1 "for an upper compartment and warp threads 2" for a lower compartment and a sley 3 for striking weft threads, not shown, with which on the one hand the warp threads 1 "and on the other hand the warp threads 2" the upper fabric 1 and the lower fabric 2 are produced.
  • a stop edge 30 a bar spread 4, which in Fig. 2 is shown in more detail; a rod-shaped deflecting element 5 'for the fabric layers 1 and 2; a drive roller 6 and a pressure roller 7, followed by an unillustrated cloth tree follows (cloth tree 10 in Fig. 7 ).
  • the Stabbreithalter 4 whose cross section in Fig. 2 3, comprises a rotatable rod 41 driven by the fabric layer 1 and a bearing shell 42 composed of two parts 42a and 42b.
  • the warp threads 1 "and 2" incorporated in the fabrics 1 and 2 are indicated by wave-shaped lines 1 'and 2'.
  • the upper fabric 1 moves at a speed v 1
  • the lower fabric 2 at a speed v 2 .
  • the tissues 1 and 2 are pressed against the bearing shell 42. Since frictional forces F act between the lower fabric 2 and the bearing shell 42 and since the rod 41 makes a rotational movement corresponding to the velocity v 1 , v 1 is slightly larger than v 2 : there is thus a shift between the two fabrics 1 and 2.
  • This unfavorable Displacement effect is most pronounced at the deflection points 421 and 422 ("stagnation points").
  • the deflection element 5 ' also contributes to a "stagnation point" 50 for the displacement effect.
  • a fabric take-off is shown in a loom, in which the inventive method is applied.
  • the fabric 1, 2 produced is driven away from the stop edge 30 with the drive roller 6 and using suitable means in a manner that acts on the two plies 1 and 2 of the fabric with substantially symmetrical forces.
  • suitable means consist of a special spreader arrangement 4 and a deflecting element 5 'designed as a pressure roller 5.
  • the fabric 1, 2 is pulled through in the spreader assembly 4 by a gap 440 between two stationary surfaces against frictional resistance.
  • the gap 440 of the spreader assembly 4 is located between a rod 43 and a support shell 44, which is formed, for example, trough-shaped.
  • the fabric 1, 2 is held down with the rod 43 and pressed on rounded deflection edges 441 and 442 of the support shell 44.
  • the support cup 44 is concave shaped in the operative area of the rod 43 and is formed so that its shape fits in a complementary manner to the shape of the rod 43 including resting tissue 1, 2.
  • the convex deflecting edges 441 and 442 form the entrance and exit areas of the gap 440, respectively, so that the webs 1, 2 are transported horizontally at the entrance and exit, respectively.
  • the rod 43 whose position is adjustable (indicated by double arrow 40), is pressed down so much that the friction acting between the upper fabric 1 and the rod 43 is approximately equal to the friction acting between the lower fabric 2 and the support shell 44 ,
  • the lower fabric 2 need not touch the concave central region of the support shell 44.
  • the pressure roller 5 is in operative connection with the drive roller 6:
  • the pressure roller 5 is arranged with respect to the drive roller 6 so that the fabric 1, 2 on the pressure roller 5 with this along a wrap angle of at least 170 ° in contact.
  • a torque is exerted by the drive roller 6 on the pressure roller 5 via the intermediate tissue 1, 2. Due to this arrangement, the pressure roller 5 acts from a drive point 51 with a tensile force on the lower fabric 2; the drive roller 6 acts from a drive point 61 with a tensile force on the upper fabric 2 a.
  • the pressure roller 5 is pressed against the drive roller 6 so strong that the two mentioned tensile forces are largely equal.
  • the value of the wrap angle at the pressure roller 5 is advantageously in the range between 170 ° and 190 °.
  • FIGS. 5 and 6 represent two variant forms of the spreader assembly 4.
  • each of the gap 440 is formed by the rod 43 and a profile bar 44 'with only one deflection edge 441' or a profile bar 44 "with deflection edge 441".
  • the rod 43 is set up so that its position is adjustable. The adjustment can be made in both vertical and horizontal directions.
  • Fig. 7 is a partial representation of the weaving machine Fig. 4 ,
  • the expander assembly 4 the fabric 1, 2 with lateral Breithaltern 45 extends transversely to the transport direction.
  • the warp threads 1 "and 2" are moved with shafts 8. It is possible to produce a double fabric which has in the warp direction on the one hand laterally and on the other hand at periodic intervals closed areas, so that from the product rectangular sacks or hollow tissue sections, in particular rectangular airbags can be produced. Wrinkles as they relate to the weaving machine Fig. 1 arise arise with the in Fig. 7 shown weaving machine - with the right attitude - or are designed much weaker.
  • a first product of the method according to the invention is shown schematically in a schematic representation, from which rectangular sacks or hollow fabric sections can be produced.
  • the Fig. 9 shows a second product for making round sacks or hollow fabric sections.
  • the warp threads are moved using, for example, a jacquard machine and / or other shed forming device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Air Bags (AREA)

Claims (10)

  1. Procédé de tissage d'un tissu à double couche (1, 2), en particulier d'un tissu pour airbag, caractérisé en ce que le procédé est mis en oeuvre sur un métier mécanique qui comporte entre le battant (3) et l'ensouple d'enroulement de tissu (10) un ensemble de templet (4) qui est disposé immédiatement après une lisière d'ourlet (30), un élément de renvoi (5') pour le tissu (1, 2) et un cylindre d'entraînement (6), le cylindre d'entraînement et l'utilisation de moyens appropriés permettant d'éloigner le tissu produit de la lisière d'ourlet de telle sorte que les deux couches du tissu - le tissu inférieur (2) ou le tissu supérieur (1) - subissent des forces substantiellement symétriques, notamment en ce que dans l'ensemble de templet, le tissu est attiré à travers un espace (440) entre deux surfaces stationnaires contre des résistances de friction, en même temps étiré par des élargisseurs latéraux (45) en travers de la direction de transport, et entraîné par un cylindre de pression rotatif (5), mis en oeuvre en plus du cylindre d'entraînement, le cylindre de pression servant d'élément de renvoi et se trouvant en relation active avec le cylindre d'entraînement.
  2. Procédé selon la revendication 1, caractérisé en ce que l'espace (440) entre une barre (43) et au moins un bord de renvoi stabilisé (441, 442 ; 441' ; 441") est disposé et en ce que la position de la barre par rapport au bord de renvoi est réglable.
  3. Procédé selon la revendication 2, caractérisé en ce que l'espace (440) est formé par une barre (43) et une coquille d'appui (44), en ce que le tissu (1, 2) est retenu en bas par la barre et poussé sur deux bords de renvoi (441, 442) de la coquille d'appui et en ce qu'en particulier la coquille d'appui est réalisée entre les bords de renvoi en forme d'auge ainsi que de façon complémentaire à la barre avec le tissu posé sur celle-ci.
  4. Procédé selon la revendication 3, caractérisé en ce que la coquille d'appui (44) est réalisée de façon convexe dans la zone d'entrée et de sortie de l'espace (440) en dehors d'une zone centrale concave, de sorte que le tissu (1, 2) est transporté respectivement horizontalement à l'entrée et à la sortie.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le cylindre de pression (5) est disposé par rapport au cylindre d'entraînement (6) de telle sorte que le tissu (1, 2) sur le cylindre de pression est en contact avec un angle d'enroulement d'au moins 170° et en ce qu'un couple de rotation est exercé par le cylindre d'entraînement sur le cylindre de pression par l'intermédiaire du tissu situé entre ceux-ci.
  6. Procédé selon la revendication 5, caractérisé en ce que le couple de rotation est suffisamment élevé pour que le cylindre de pression (5) entraîne le tissu inférieur (2) avec une force de traction qui est substantiellement aussi grande que la force de traction exercée par le cylindre d'entraînement (6) sur le tissu supérieur (1).
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que la valeur de l'angle d'enroulement se situe dans la plage entre 170° et 190°.
  8. Application du procédé selon l'une quelconque des revendications 1 à 7 pour la fabrication de sacs, en particulier d'airbags ou de sections de tissu tubulaire.
  9. Application selon la revendication 8, caractérisée en ce que des fils de chaînes (1", 2") sont déplacés par des lames (8) qui sont commandées par une mécanique d'armures ou un excentrique, et en ce qu'un tissu à double couche (1, 2) est produit qui présente latéralement dans la direction de chaîne et à intervalles périodiques des surfaces partielles fermées (12) de sorte que le produit permet de fabriquer des sacs rectangulaires.
  10. Application selon la revendication 8, caractérisée en ce que des fils de chaîne (1", 2") sont déplacés en utilisant un métier Jacquard, et en ce qu'un tissu à double couche (1, 2) est produit qui présente des zones périphériques rondes fermées (12) de sorte que le produit permet de fabriquer des sacs ronds.
EP20020405850 2001-11-01 2002-10-02 Procédé de tissage d'un tissu à double couche Expired - Lifetime EP1308546B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20020405850 EP1308546B1 (fr) 2001-11-01 2002-10-02 Procédé de tissage d'un tissu à double couche

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP01811061 2001-11-01
EP01811061 2001-11-01
EP20020405850 EP1308546B1 (fr) 2001-11-01 2002-10-02 Procédé de tissage d'un tissu à double couche

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EP1308546A1 EP1308546A1 (fr) 2003-05-07
EP1308546B1 true EP1308546B1 (fr) 2008-07-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180092A1 (fr) 2008-10-24 2010-04-28 Groz-Beckert KG Tendeur de largeur doté d'un dispositif de serrage et d'ouvrir

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* Cited by examiner, † Cited by third party
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CN102926113A (zh) * 2012-11-21 2013-02-13 常熟市宝沣特种纤维有限公司 有梭织机的圆筒布内撑幅装置
CN107723904B (zh) * 2017-11-14 2023-06-06 无锡市鼎麒新材料科技有限公司 展宽展薄布织机的经纱张力机构及其方法
CN109142120A (zh) * 2018-08-16 2019-01-04 浙江中正检测技术服务有限公司 一种自动式纺织品耐磨检测装置
EP3957695A1 (fr) 2020-08-17 2022-02-23 tesa SE Bande adhésive permettant d'envelopper une marchandise allongée telle que, en particulier les faisceaux de câbles et procédé d'enveloppement
CN113417054A (zh) * 2021-07-15 2021-09-21 鲁丰织染有限公司 解决接结双层面料织造分层不一致的方法
CN113564785B (zh) * 2021-08-09 2022-10-11 江苏佩捷纺织智能科技有限公司 一种带辅助撑开的宽幅织机转动导布辊装置
DE102021210866A1 (de) 2021-09-28 2023-03-30 Tesa Se Klebeband zum Ummanteln von langgestrecktem Gut wie insbesondere Kabelsätzen und Verfahren zur Ummantelung

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JPS55132746A (en) 1979-04-04 1980-10-15 Nissan Motor Warp fluff preventing apparatus of loom
US5685347A (en) * 1989-02-16 1997-11-11 Airbags International Limited Circular air bag made of two simultaneously woven fabrics
JP2945043B2 (ja) * 1989-12-01 1999-09-06 タカタ株式会社 エアバッグ用基布
SU1703731A1 (ru) * 1990-01-17 1992-01-07 Ленинградский институт текстильной и легкой промышленности им.С.М.Кирова Товарный регул тор ткацкого станка
JPH0674539B2 (ja) 1991-05-13 1994-09-21 津田駒工業株式会社 織機の口合せ段防止方法
JPH0527084U (ja) 1991-09-20 1993-04-06 日産自動車株式会社 織機の織布巻き取り装置
JPH0712489U (ja) 1993-07-30 1995-02-28 津田駒工業株式会社 テンプル姿勢調節機構
ATE233191T1 (de) 1997-05-11 2003-03-15 Goodrich Corp Sicherheitsgurtsystem mit einem nahtlosen aufblasbarem element
JPH11107135A (ja) * 1997-09-30 1999-04-20 Tsudakoma Corp 巻取装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180092A1 (fr) 2008-10-24 2010-04-28 Groz-Beckert KG Tendeur de largeur doté d'un dispositif de serrage et d'ouvrir
CN101724966B (zh) * 2008-10-24 2011-12-07 格罗兹-贝克特公司 具有夹紧装置和通风装置的伸展器

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