EP1367159B1 - Procédé et dispositif pour acheminer un fil de trame pincé à une griffe d'amenée pour métiers à tisser - Google Patents

Procédé et dispositif pour acheminer un fil de trame pincé à une griffe d'amenée pour métiers à tisser Download PDF

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Publication number
EP1367159B1
EP1367159B1 EP03005212A EP03005212A EP1367159B1 EP 1367159 B1 EP1367159 B1 EP 1367159B1 EP 03005212 A EP03005212 A EP 03005212A EP 03005212 A EP03005212 A EP 03005212A EP 1367159 B1 EP1367159 B1 EP 1367159B1
Authority
EP
European Patent Office
Prior art keywords
weft
thread
clamp
feeder
weft thread
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
EP03005212A
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German (de)
English (en)
Other versions
EP1367159A3 (fr
EP1367159A2 (fr
Inventor
Wilhelm Herrlein
Manuel Renz
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.)
Lindauer Dornier GmbH
Original Assignee
Lindauer Dornier GmbH
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 Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP1367159A2 publication Critical patent/EP1367159A2/fr
Publication of EP1367159A3 publication Critical patent/EP1367159A3/fr
Application granted granted Critical
Publication of EP1367159B1 publication Critical patent/EP1367159B1/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
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/125—Weft holding devices
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means

Definitions

  • the invention relates to a method and a device for feeding a clamped weft thread to a rapier of a weaving machine according to the preamble of the independent claims, wherein the weft feeder and clamping device serves to minimize the weft drop in the manufacture of fabric on rapier looms.
  • a device for presentation and clamping of weft threads in a rapier essentially comprises a feeder lever with thread clamp for each weft thread to be inserted into a shed.
  • the feeder levers are located next to each other and arranged approximately parallel to the entry side fabric edge.
  • the first feeder lever clamp is closest to the fabric edge positions A and C, while the last feeder lever clamp is positioned furthest away from the fabric edge.
  • each nip is displaceable relative to a reference plane and further wherein the nips are arranged one above the other at equal intervals and one nip in the reference plane can be moved.
  • controlled Schussfadenlor ie each nip of the controlled clamping device functionally assigned a controlled weft selector, on the one hand achieved in an advantageous manner that the weft thread to be inserted into the shed can be moved into a first reference plane and in this of the Bringergreifer is taken over without any problems.
  • the clamping point in question can be moved in a second reference plane, which corresponds to the position of the binding point of the tissue. This ensures that when weft of the weft yarn to the binding point of the fabric, the weft thread is received by the respective nip of the clamping device and entry side of the shed between fabric edge and nip is kept curious. This is advantageous for the cutting process, the thread scissors arranged between the nip and the fabric edge. However, a minimization of the weft drop can not be achieved because the weft threads can not be presented to the Bringergreifer immediately.
  • the object of the invention is to provide a method for minimizing the weft drop while avoiding the disadvantages of the prior art and to provide a device for carrying out the method.
  • the movement of the reed following holding clamp in combination with the respective Thread feeder clamp and a remote from the stop edge cutter for the weft thread is achieved in an advantageous manner that the weft thread during the movement of the reed can be cut in the direction of the stop edge of the fabric.
  • the movement of the yarn feeder is selected so that at least in the rest position and the sufficient supply the same thread tension.
  • the procedure and the timely control of the individual devices is realized by an electronic weaving machine control.
  • the drive of the devices may either be derived from the central loom drive or by independent drives controlled by loom control, e.g. Electromotive drives, done.
  • FIGs 1 and 2 the weft insertion side of a loom is shown schematically.
  • the upper and lower warp threads 1, 2 extend through the weaving machine shafts 3 and through the lamellae of the reed 4 up to the binding point 5, at which each of the weft yarn 7 inserted into the shed 6 stretched by the warp threads 1, 2 is moved back and forth Web leaf 4 is struck against the stop edge 8 of the fabric 9.
  • the weft threads 7 are introduced by a Bringergreifer 10 and a non-illustrated gripper rapier in the shed 6.
  • the formed fabric 9 is continuously pulled down.
  • weft threads 7 are shown, which are withdrawn from supply spools (not shown) and extend over a thread guide 11 to so-called Fadenzubringern 12, where they are held by a feeder clamp 13.
  • Each weft yarn 7 is assigned a yarn feeder 12 with feeder clamp 13.
  • the thread feeders 12 are formed as a bow-shaped pivot lever.
  • a yarn feeder 12 is shown in its rest position 12A, wherein the feeder clamp 13, the end of the associated weft yarn 7 is stuck.
  • Each yarn feeder 12 is pivotally mounted about a pivot axis 14 and can be pivoted between the rest position 12A and a sufficient position 12B, wherein the pivot axis 14 is selected such that it passes through the thread eye 15 of the thread guide 11 of the associated weft thread 7. This ensures that the distance between the eyelet 15 and the feeder clamp 13 and thus also the thread tension in each position of the yarn feeder 12 remains constant. In their present position 12B, all thread feeders 12 are located substantially at the same point of addition 16, as indicated in FIG.
  • the reed 4 After weft insertion, the reed 4 is moved from its front position 4A in the direction of its stop position 4B at the binding point 5 and pushes the registered weft thread 7 in front of him.
  • the yarn feeder 12 with the feeder clamp 13 is still in the presence position 12B.
  • weft yarn 7 is introduced into the feeder clamp 13 and clamped there.
  • the weft thread 7 is introduced through the reed 4 into a holding web 18 movably arranged on the lateral fabric edge 17 and likewise clamped there.
  • Hinreichehakens 19 is not mandatory and can e.g. be made dependent on the type of weft threads to be processed.
  • the weft yarn 7 is reliably clamped in the feeder clamp 13 and the holding clamp 18, it is immediately cut by a cutter 20 stationarily arranged near the licking position 12B of the yarn clamp 13 while the reed 4 continues to move in the direction of its stopper position 4b.
  • the holding clamp 18 is arranged on a pivoting lever 22 which is movable about an axis 21.
  • the movement of the pivot lever 22 is positively controlled and follows after the clamping of the weft thread 7 substantially the movement of the reed 4 to its stop position.
  • the pivot lever 22 is in an indicated in Figure 2 middle position 22A.
  • the reed enters the region of the position 22A of the pivoting lever.
  • the pivot lever 22 moves synchronously with the movement of the reed 4 in a position 22C, in which the reed 4 abuts the registered weft thread 7 at the stop edge 8 of the fabric 9.
  • the position of the reed 4 in the stop position 4b is indicated. In this position 4b, the retaining clip 18 opens and releases the end of the weft thread 7.
  • the pivot lever 22 can now return to its original position 22A.
  • the yarn feeder 12 also pivots back to its rest position 12A to make room for another yarn feeder 12. If the same weft thread is to be re-entered, the yarn feeder 12 can remain in its preswelling position 12A.
  • FIG. 3 shows an embodiment of the invention with a linear yarn feed.
  • each thread feeder 12 instead of a circular movement, carries out a purely linear adjustment movement in the direction 25 between its rest position 12A and its attachment position 12B and vice versa.
  • the thread feeders 12 are in their allotted position 12B substantially all at the same Hinreicheddling 16.
  • the linear path of the yarn feeder 12 from its rest position 12A in the Hinreichegna 12B is chosen such that the clamped weft yarn 7 is kept curious at least in the rest position and the Hinreichegna.
  • the yarn feeder 12 After the yarn feeder 12 has brought the weft yarn 7 to be introduced into the letting position 12B, the yarn is picked up by the bringer rapier 10 and inserted into the shed 6.
  • the subsequent process steps correspond to the steps described in connection with FIGS. 1 and 2.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (16)

  1. Procédé permettant de délivrer un fil de trame à une griffe donneuse d'un métier à tisser, moyennant quoi plusieurs fils de trame (7) sont présents et la section de commencement de chaque fil de trame est serrée par l'intermédiaire d'une pince d'alimentation (13) affectée à celle-ci, disposée au niveau d'un dispositif d'alimentation en fil (12) mobile, moyennant quoi le procédé comprend les étapes suivantes:
    déplacement d'un dispositif d'alimentation en fil (12) choisi avec le fil de trame, d'une position de repos (12A) dans une position d'extension (12B),
    saisie du fil de trame (7) par une griffe donneuse (10) et ouverture de la pince d'alimentation (13) du dispositif d'alimentation en fil (12),
    introduction du fil de trame (7) choisi dans un pas de chaîne (6) ouvert,
    fixation du fil de trame dans le point de liage (5), au niveau du bord à fixer (8) du tissu (9) par l'intermédiaire du peigne miseur, moyennant quoi, avant la fixation du fil de trame, la partie restant entre un guide-fil (11) et le bord du tissu du côté trame (17), du fil de trame (7), est introduite et serrée dans cette même pince d'alimentation (13), et en ce que la partie restante du fil de trame (7) est saisie et serrée par une pince de retenue (18) disposée au niveau du bord du tissu du côté trame (17) sensiblement au moment où celle-ci est introduite et serrée dans la pince d'alimentation (13),
    moyennant quoi la partie restante du fil de trame (7) est découpée, directement après le serrage par la pince d'alimentation (13) et la pince de retenue (18) et encore pendant le déplacement du peigne miseur (4) par un dispositif de coupe (20) disposé entre la positon d'extension de la pince d'alimentation (13) et une position de réception (22B) de la pince de retenue (18), et on trouve alors une extrémité de fil de trame arrière et une extrémité avant d'un nouveau fil de trame, caractérisé en ce que la pince de retenue (18), serrant l'extrémité arrière du fil de trame (7), suit le mouvement destiné à la fixation du peigne miseur (4) jusqu'au point de liage (5), après quoi le fil de trame est fixé au niveau du point de liage, la pince de retenue (18) est alors ouverte et revient à la position de réception (22b) et, en outre, le dispositif d'alimentation en fil (12) revient dans la position de repos (12A) avec l'extrémité avant d'un nouveau fil de trame.
  2. Procédé selon la revendication 1, caractérisé en ce que le fil de trame (7) inséré est introduit à l'aide d'un crochet d'extension (19) dans la pince d'alimentation (13) et dans la pince de retenue (18).
  3. Procédé selon la revendication 1, caractérisé en ce que la pince de retenue (18) est disposée sur un levier pivotant (22) mobile autour d'un axe (21), moyennant quoi la pince de retenue (18) reçoit et serre le fil de trame dans une position de réception (22B) du levier pivotant, le levier pivotant (22) pivote conjointement avec le déplacement du peigne miseur (4) pour parvenir dans la position de fixation arrière (22C), et la pince de retenue (18) libère de nouveau le fil de trame.
  4. Procédé selon la revendication 1, caractérisé en ce qu'on utilise respectivement l'un de plusieurs dispositifs d'alimentation en fil (12) pouvant pivoter autour d'un axe (14), moyennant quoi chaque dispositif d'alimentation en fil, dans la position d'extension (12B), se place sensiblement au niveau d'un seul et même point d'extension (16).
  5. Procédé selon la revendication 4, caractérisé en ce que la position de l'axe (14) du dispositif d'alimentation en fil (12) est choisie de telle sorte que le fil de trame est maintenu en étant tendu lors du déplacement entre la position de repos (12A) et la position d'extension (12B) et inversement.
  6. Procédé selon la revendication 1, caractérisé en ce qu'on utilise respectivement l'un de plusieurs dispositifs d'alimentation en fil (12) mobiles de manière linéaire, moyennant quoi chaque dispositif d'alimentation en fil, dans la position d'extension (12B), se place sensiblement au niveau d'un seul et même point d'extension (16).
  7. Procédé selon la revendication 6, caractérisé en ce que la trajectoire linéaire du dispositif d'alimentation en fil (12), entre la position de repos (12A) et la position d'extension (12B), est choisie de telle sorte que le fil de trame (7) est maintenu en étant tendu au moins dans la position de repos et dans la position d'extension.
  8. Procédé selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le dispositif d'alimentation en fil (12) reste dans sa position d'extension (12B) lorsque, pour la trame suivante, on doit introduire le même fil de trame (7).
  9. Procédé selon la revendication 1, caractérisé en ce que le déplacement du dispositif d'alimentation en fil (12), l'actionnement des pinces d'alimentation (13), le déplacement du levier pivotant (22), l'actionnement de la pince de retenue (18) et l'actionnement du dispositif de coupe (20) sont commandés en fonction de l'angle de l'appareil.
  10. Procédé selon la revendication 1, caractérisé en ce que les pinces d'alimentation (13) et/ou pince de retenue (18) sont actionnées de manière passive.
  11. Procédé selon la revendication 1, caractérisé en ce que les pinces d'alimentation (13) et/ou la pince de retenue (18) sont actionnées de manière active.
  12. Dispositif permettant de délivrer un fil de trame à une griffe donneuse d'un métier à tisser, moyennant quoi plusieurs fils de trame (7) sont présents, et l'extrémité avant de chaque fil de trame à délivrer est serrée par l'intermédiaire d'une pince d'alimentation (13) affectée à celle-ci, disposée au niveau d'un dispositif d'alimentation en fil (12) mobile, moyennant quoi le dispositif d'alimentation en fil (12) est déplacé d'une position de repos dans une position d'extension et inversement, comportant une griffe donneuse pouvant être avancée puis reculée dans le pas de chaîne (6), et un dispositif de coupe (20) permettant de découper le fil de trame (7) introduit à partir d'un fil de trame maintenu à disposition, moyennant quoi le dispositif de coupe (20) est disposé à proximité du point d'extension (16) de la pince pour le fil (12), de manière immobile au niveau du bord de tissu (17) du côté trame, caractérisé en ce que, au niveau du bord du tissu du côté trame (17), il est prévu une pince de retenue (18) suivant le déplacement du peigne miseur, destinée au fil de trame (7).
  13. Dispositif selon la revendication 12, caractérisé en ce que la pince de retenue (18) est disposée sur un levier pivotant (22) entraîné de manière mobile autour d'un axe (21).
  14. Dispositif selon la revendication 12, caractérisé en ce que les dispositifs d'alimentation en fil (12) sont configurés sous la forme d'éléments de type étriers entraînés autour d'un axe pivotant (14).
  15. Dispositif selon la revendication 12, caractérisé en ce que les dispositifs d'alimentation en fil (12) sont configurés sous la forme d'éléments entraînés dans une direction linéaire.
  16. Dispositif selon la revendication 12, caractérisé en ce qu'on prévoit, entre la position d'extension (12B) du dispositif d'alimentation en fil (12) et le dispositif de coupe (20), un crochet d'extension (19) installé de manière fixe.
EP03005212A 2002-03-27 2003-03-08 Procédé et dispositif pour acheminer un fil de trame pincé à une griffe d'amenée pour métiers à tisser Expired - Lifetime EP1367159B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10213639A DE10213639C1 (de) 2002-03-27 2002-03-27 Verfahren und Vorrichtung zum Zubringen eines geklemmten Schussfadens zu einem Bringergreifer einer Webmaschine
DE10213639 2002-03-27

Publications (3)

Publication Number Publication Date
EP1367159A2 EP1367159A2 (fr) 2003-12-03
EP1367159A3 EP1367159A3 (fr) 2004-05-06
EP1367159B1 true EP1367159B1 (fr) 2007-10-24

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EP03005212A Expired - Lifetime EP1367159B1 (fr) 2002-03-27 2003-03-08 Procédé et dispositif pour acheminer un fil de trame pincé à une griffe d'amenée pour métiers à tisser

Country Status (5)

Country Link
US (1) US6938648B2 (fr)
EP (1) EP1367159B1 (fr)
JP (1) JP4339001B2 (fr)
AT (1) ATE376598T1 (fr)
DE (2) DE10213639C1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE602004005171T2 (de) * 2004-06-25 2007-11-15 Luigi Omodeo Zorini Nadelwebmaschine mit automatischem Wechsel des Schussfadens
CN102505281A (zh) * 2011-09-30 2012-06-20 浙江理工大学 偏心非圆齿轮—曲柄摇杆的剑杆织机引纬、打纬机构
DE102015217356B3 (de) * 2015-09-10 2016-10-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Webmaschine mit einer Vorrichtung sowie Verfahren zum Halten, Zubringen und Eintragen von Schussfäden in ein Webfach
CN107217375A (zh) * 2017-07-24 2017-09-29 吴江君和纺织电器有限公司 储纬装置及织布系统
IT201900014982A1 (it) * 2019-08-23 2021-02-23 Santex Rimar Group S R L Dispositivo per il risparmio della trama in macchine per tessere

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS166597B1 (fr) * 1974-07-25 1976-03-29
DE2651875C3 (de) * 1976-11-13 1981-02-05 Lindauer Dornier-Gesellschaft Mbh, 8990 Lindau Vorrichtung zum Anschlagen und Abschneiden von ins Webfach eingetragenen Schußfäden bei mit Mischwechslern ausgerüsteten schützenlosen Webmaschinen
DE3042053C1 (de) * 1980-11-07 1982-11-11 Lindauer Dornier-Gesellschaft Mbh, 8990 Lindau Schuetzenlose Webmaschine mit Schussfadeneintrag durch ins Webfach vorgeschobene und wieder zurueckgezogene Eintraggreifer
NL8600857A (nl) * 1986-04-03 1987-11-02 Picanol Nv Werkwijze voor het klemmen, vasthouden en presenteren van inslagdraden bij grijperweefmachines en inrichting hiertoe aangewend.
US4855875A (en) * 1987-05-11 1989-08-08 Tokyo Kogaku Kikai Kabushiki Kaisha Light source device for medical apparatus
US5199468A (en) * 1990-06-21 1993-04-06 Sulzer Brothers Limited Weft yarn clearing device
DE19739853C2 (de) * 1997-09-11 2001-04-12 Dornier Gmbh Lindauer Steuerbare Schußfadenzubringer- und -klemmvorrichtung und Vorrichtungsanordnung zum Minimieren des Schußfadenabfalles bei der Gewebeherstellung auf Webmaschinen, insbesondere auf Greiferwebmaschinen
ES2176866T3 (es) 1997-09-11 2002-12-01 Dornier Gmbh Lindauer Dispositivo controlable de aportacion y de sujecion del hilo de trama y sistema para reducir al minimo los desechos de hilos de trama en la fabricacion de tejidos sobre telares, ante todo sobre los telares de garras.
DE59910006D1 (de) * 1999-01-12 2004-08-26 Sultex Ag Rueti Vorrichtung zum Abtrennen eines in ein Webfach einzutragenden Schussfadens und Webmaschine mit einer derartigen Vorrichtung

Also Published As

Publication number Publication date
EP1367159A3 (fr) 2004-05-06
US6938648B2 (en) 2005-09-06
JP4339001B2 (ja) 2009-10-07
US20030183295A1 (en) 2003-10-02
DE10213639C1 (de) 2003-12-18
JP2003293247A (ja) 2003-10-15
ATE376598T1 (de) 2007-11-15
EP1367159A2 (fr) 2003-12-03
DE50308448D1 (de) 2007-12-06

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