EP0644286A1 - Arrangement pour présenter des fils de trame - Google Patents

Arrangement pour présenter des fils de trame Download PDF

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Publication number
EP0644286A1
EP0644286A1 EP93810659A EP93810659A EP0644286A1 EP 0644286 A1 EP0644286 A1 EP 0644286A1 EP 93810659 A EP93810659 A EP 93810659A EP 93810659 A EP93810659 A EP 93810659A EP 0644286 A1 EP0644286 A1 EP 0644286A1
Authority
EP
European Patent Office
Prior art keywords
weft
clamping
thread
reference plane
arrangement according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93810659A
Other languages
German (de)
English (en)
Other versions
EP0644286B1 (fr
Inventor
Angelo Stacher
Theo Thalmann
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
Maschinenfabrik Rueti AG
Original Assignee
Sultex AG
Maschinenfabrik Rueti 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8215031&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0644286(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sultex AG, Maschinenfabrik Rueti AG filed Critical Sultex AG
Priority to EP93810659A priority Critical patent/EP0644286B1/fr
Priority to DE59306205T priority patent/DE59306205D1/de
Priority to US08/289,824 priority patent/US5492153A/en
Priority to JP21892694A priority patent/JP3413809B2/ja
Publication of EP0644286A1 publication Critical patent/EP0644286A1/fr
Application granted granted Critical
Publication of EP0644286B1 publication Critical patent/EP0644286B1/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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/38—Weft pattern mechanisms

Definitions

  • the invention relates to an arrangement for presenting weft threads for a rapier weaving machine according to the preamble of claim 1, and a rapier weaving machine with such an arrangement.
  • EP-A 421 394 describes a device which has two clamping points and, in the manner of a mixed changer, after the transfer of the weft thread to the gripper, provides the relevant clamping point for receiving the weft thread and subsequently clamps the weft thread, with the clamping points above or below are arranged below the tissue plane.
  • a first guide element with a slot is provided, through which the weft threads are guided from the weft thread feeders to the clamping points. Because the weft threads are guided in the same plane but are clamped at different levels on both sides of this plane, the weft threads come into contact or cross in the slot or in the path of the weft threads the clamping points and the weft feeders. This is a disadvantage.
  • the slot is widened at the end in order to prevent the weft thread from being carried along.
  • the weft thread is taken over by the gripper, it is pulled over the edge formed by the extension, which leads to weft thread breaks.
  • the paths of the weft threads can cross.
  • weft threads For the presentation of a plurality of weft threads, e.g. four such devices are provided, which are arranged in an upper or lower position and each can be moved up and down individually in order to shift the respective device into a forward position.
  • the shifting of the device extends the period between two weft thread patterns, which undesirably limits the working speed and the number of weft threads that can be placed.
  • each device has a thread guide, the weft threads in each device are displaced with respect to the fabric plane, so that each has an excess length, which leads to crossings of the weft threads.
  • ribbon-shaped metal thread composite material Lix
  • the invention seeks to remedy this.
  • the invention as characterized in the claims solves the problem of creating an arrangement for the insertion of weft threads, so that avoiding the disadvantages mentioned a selective presentation of the weft threads at high Working speed of the loom is guaranteed, and in which the space required for the presentation of the weft thread to be entered is limited to a minimum.
  • the distance between the clamping points is at least 1 mm and an actuating device in the form of a stepper motor is used.
  • an actuating device in the form of a stepper motor is used.
  • the arrangement shown in Fig. 1 consists essentially of a known weft sequence control (not shown) with six weft feeders 1, a controlled thread clamp 2 with six clamping points 3a to 3f and a guide member 4 with a slot 5.
  • the arrangement is in a rapier weaving machine mounted in such a way that the clamping points with respect to the tissue plane, which is referred to below as reference plane 6, lie one above the other and the slot 5 is arranged in the reference plane 6.
  • the guide member 4 has a recess 7 into which the slot 5 opens.
  • the weft feeders 1 are staggered so that the guide openings A to F have a different height with respect to the reference plane 6. With the arrangement, six weft threads 8a to 8f are presented. Each weft thread feeder 1 is assigned to a clamping point 3a to 3f, such that each weft thread is guided from the clamping point holding the weft thread through the recess 7 to the guide openings A to F essentially in parallel and without crossing. Furthermore, there is an adjusting device 9 around the clamping points 3a to 3f with respect to the reference plane 6 and a device 10 for canceling a selected clamping point is provided.
  • the actuating device 9 is a stepper motor which is connected to the weaving machine with a control device (not shown) and is controlled in accordance with a weaving program.
  • the device 10 is, for example, an electromagnet which is fed from the firing sequence control. It is pointed out that instead of the magnet, a lever arrangement can be provided which is coupled to the weft sequence control device.
  • the thread clamp 2 contains a holder 11, seven clamping bodies 12, an actuator 13, two compression springs 14, two snap rings 15, a pin 16 and an opening element 17.
  • the holder 11 is U-shaped and has a through hole 22 with a square cross section in its legs 21 and an elongated hole 24 in its base section 23.
  • the clamping bodies 12 are essentially cuboid and have a through hole 25 with a square cross section.
  • the clamping bodies are wedge-shaped at the ends in order to facilitate the insertion of the weft thread or the opening member 17.
  • the actuator 13 is rod-shaped and has a section 26 with a square cross section and a second section 27 with a round cross section.
  • the actuating member 13 is arranged in the legs 21 in the direction of the double arrow A so as to be displaceable.
  • the seven clamping bodies 12, which form the six clamping points 3a to 3f, are arranged on the first section 26.
  • the clamping bodies are designed so that the clamping points are at a distance of, for example, 3 mm.
  • the middle clamp is firmly connected to the actuator 13 by means of the pin 16 and three clamping bodies are arranged displaceably on each side of the fixed clamping body.
  • Compression springs 14 are arranged on both sides of the clamping bodies 12, which rest on the one hand on the snap rings 15 and on the other hand on the outer clamping bodies 12 and press the latter against one another.
  • the actuator 13 is coupled to the actuator 9.
  • the opening element 17 is arranged in the slot 24 in the direction of the double arrow B and is coupled to the device 10.
  • the thread clamp 2 and the guide member 4 are connected to one another and form a functional unit.
  • This functional unit is mounted in the rapier weaving machine by means not shown.
  • the thread clamp 2 is arranged at a predetermined distance with respect to the fabric edge 31 such that the clamping points 3 are each aligned with the compartment tip 32.
  • a symbolically illustrated cutting device 33 is arranged between the thread clamp 2 and the fabric edge 31 (FIG. 5). The mode of operation of the arrangement is described below, the arrangement being brought from the position shown in FIG. 1 to the position shown in FIG. 4, in which the weft thread 8a is presented to the hook 35.
  • the weft thread template is composed of two processes, namely the pivoting of the weft thread feeder 1 in the direction of the reference plane 6 and the displacement of the clamping point 3a into the reference plane 6.
  • the weft threads 8a to 8f are guided without crossings between the clamping points and the guide openings. This state is maintained when the weft thread feeder is pivoted.
  • the displacement of the nip 3a in the reference plane 6 ensures that the weft thread 8a is arranged in the reference plane 6 and is already introduced into the slot 5 due to the tensile stress acting on the thread. (Fig. 5).
  • the weft thread 8a Due to this spatial separation of the weft thread 8a from the other weft threads, there is no contact between them when the weft thread is taken over by the gripper 35. After the weft thread 8a has been taken over by the gripper 35, the weft thread end is peeled out of the clamping point 3a and drawn into the shed. During the pulling in of the weft thread 8a, the clamping point 3a is released by the opening member 17 by inserting it between the clamping bodies 12, which form the clamping point 3a. A gap between the clamping bodies 12 is simultaneously formed by this opening member. The weft thread 8a drawn in is inserted into this gap again when struck by the reed (not shown).
  • the weft thread feeder 1 is again in the position shown with dashed lines.
  • the weft 8a is guided through the inlet gap into the slot 5, the weft 8a being guided on the top of the slot 5 due to the position of the weft feeder 1.
  • the weft thread is introduced into the gap between the clamping bodies 12 in a spatially separated manner from the other weft threads.
  • the clamping point is re-established due to the spring force and the weft thread is held in the clamping point.
  • the inserted weft thread is cut by means of the cutting device 33. This provides the weft for a new entry.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP93810659A 1993-09-20 1993-09-20 Arrangement pour présenter des fils de trame Expired - Lifetime EP0644286B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP93810659A EP0644286B1 (fr) 1993-09-20 1993-09-20 Arrangement pour présenter des fils de trame
DE59306205T DE59306205D1 (de) 1993-09-20 1993-09-20 Anordnung zum Vorlegen von Schussfäden
US08/289,824 US5492153A (en) 1993-09-20 1994-08-12 Clamp type arrangement for presenting weft threads to a gripper
JP21892694A JP3413809B2 (ja) 1993-09-20 1994-09-13 緯糸導入装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810659A EP0644286B1 (fr) 1993-09-20 1993-09-20 Arrangement pour présenter des fils de trame

Publications (2)

Publication Number Publication Date
EP0644286A1 true EP0644286A1 (fr) 1995-03-22
EP0644286B1 EP0644286B1 (fr) 1997-04-16

Family

ID=8215031

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810659A Expired - Lifetime EP0644286B1 (fr) 1993-09-20 1993-09-20 Arrangement pour présenter des fils de trame

Country Status (4)

Country Link
US (1) US5492153A (fr)
EP (1) EP0644286B1 (fr)
JP (1) JP3413809B2 (fr)
DE (1) DE59306205D1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898001A2 (fr) * 1997-08-04 1999-02-24 GIVIDI-Italia S.p.A. Méthode de coupe de la lisière
EP0902109A1 (fr) * 1997-09-11 1999-03-17 Lindauer Dornier Gesellschaft M.B.H Dispositif de fournissage et de pinçage de fil de trame contrÔlable et ensemble de dispositifs pour la minimalisation des déchets de fil de trame pour le tissage sur métiers à tisser, plus particulièrement métiers à tisser à griffes
DE19739853A1 (de) * 1997-09-11 1999-03-18 Dornier Gmbh Lindauer Steuerbare Schußfadenzubringer- und -klemmvorrichtung und Vorrichtungsanordnung zum Minimieren des Schußfadenabfalles bei der Gewebeherstellung auf Webmaschinen, insbesondere auf Greiferwebmaschinen
EP1016745A2 (fr) * 1998-11-16 2000-07-05 Lindauer Dornier Gesellschaft M.B.H Dispositif contrôlé d'amenée et de pincement de fil de trame pour métiers à tisser
EP1016744A1 (fr) * 1998-12-16 2000-07-05 Sulzer Textil Ag Système et procédé pour régler le pince-fil d'une pince d'amenée et métier à tisser avec un tel système
EP1020550A1 (fr) * 1999-01-12 2000-07-19 Sulzer Textil Ag Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif
US6155309A (en) * 1999-01-12 2000-12-05 Sulzer Textil Ag Settable weft clamping and severing apparatus
WO2007137544A1 (fr) * 2006-05-31 2007-12-06 Lindauer Dornier Gesellschaft Mbh ProcÉdÉ et dispositif pour former une lisiÈre sur un mÉtier À tisser À pinces
WO2013007551A2 (fr) 2011-07-12 2013-01-17 Picanol Dispositif et procédé de serrage d'un fil de trame
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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6253795B1 (en) * 1998-03-14 2001-07-03 Stephan Kuster Tensioning apparatus and method for an interlaced thread
EP1127181B2 (fr) * 1998-10-21 2010-07-28 Picanol N.V. Pince a fil pour une lance d'une machine a tisser a lances
BE1012676A3 (nl) * 1999-05-12 2001-02-06 Wiele Michel Van De Nv Inrichting voor inslagannulatie op een weefmachine.
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
EP1811068B1 (fr) * 2006-01-24 2009-06-17 Sultex AG Frein de trame avec commande
BE1024401B1 (nl) * 2016-07-04 2018-02-13 Picanol N.V. Naamloze Vennootschap Inrichting voor het klemmen van inslagdraden
IT201700073787A1 (it) * 2017-06-30 2018-12-30 Itema Spa Dispositivo di gestione dei fili di trama senza la formazione di falsa cimossa in un telaio tessile a pinze

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE389610C (de) * 1922-09-14 1924-02-04 Vogtlaendische Maschinenfabrik Schussfadenwechselvorrichtung fuer Greiferwebstuehle
US3921678A (en) * 1971-11-24 1975-11-25 Lebocey Ind Soc Device for selecting a weft thread in a shuttleless loom supplied by external spools

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5522578B2 (fr) * 1971-11-19 1980-06-18
US4185667A (en) * 1978-05-17 1980-01-29 Rossville Mills, Inc. Positioning and holding mechanisms for filling yarns in a shuttleless loom
JPS59167151A (ja) * 1983-03-14 1984-09-20 Hitachi Ltd デ−タ伝送方式
JPS609949A (ja) * 1983-06-24 1985-01-19 株式会社石川製作所 無杼織機における多色緯糸選択装置
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.
DE3812960A1 (de) * 1987-10-06 1989-04-20 Textilma Ag Greiferwebmaschine
IT1230951B (it) * 1989-06-30 1991-11-08 Nuovo Pignone Spa Dispositivo perfezionato di selezione e presentazione dei fili di trama per telai tessili ad alta velocita'
US5156105A (en) * 1991-09-23 1992-10-20 Wang Shui Nu Thread tension adjusting device for a sewing machine
DE9206600U1 (fr) * 1992-05-18 1992-10-22 Schouten, Petrus Coenradus, Amsterdam, Nl

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE389610C (de) * 1922-09-14 1924-02-04 Vogtlaendische Maschinenfabrik Schussfadenwechselvorrichtung fuer Greiferwebstuehle
US3921678A (en) * 1971-11-24 1975-11-25 Lebocey Ind Soc Device for selecting a weft thread in a shuttleless loom supplied by external spools

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898001A3 (fr) * 1997-08-04 1999-12-08 GIVIDI-Italia S.p.A. Méthode de coupe de la lisière
EP0898001A2 (fr) * 1997-08-04 1999-02-24 GIVIDI-Italia S.p.A. Méthode de coupe de la lisière
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
EP0902109A1 (fr) * 1997-09-11 1999-03-17 Lindauer Dornier Gesellschaft M.B.H Dispositif de fournissage et de pinçage de fil de trame contrÔlable et ensemble de dispositifs pour la minimalisation des déchets de fil de trame pour le tissage sur métiers à tisser, plus particulièrement métiers à tisser à griffes
DE19739853A1 (de) * 1997-09-11 1999-03-18 Dornier Gmbh Lindauer Steuerbare Schußfadenzubringer- und -klemmvorrichtung und Vorrichtungsanordnung zum Minimieren des Schußfadenabfalles bei der Gewebeherstellung auf Webmaschinen, insbesondere auf Greiferwebmaschinen
US6026865A (en) * 1997-09-11 2000-02-22 Lindauer Dornier Gesellschaft Mbh Axially slidable weft thread presenting levers and clamping arrangement for minimizing thread waste
EP1016745A2 (fr) * 1998-11-16 2000-07-05 Lindauer Dornier Gesellschaft M.B.H Dispositif contrôlé d'amenée et de pincement de fil de trame pour métiers à tisser
EP1016745A3 (fr) * 1998-11-16 2004-03-03 Lindauer Dornier Gesellschaft M.B.H Dispositif contrôlé d'amenée et de pincement de fil de trame pour métiers à tisser
EP1016744A1 (fr) * 1998-12-16 2000-07-05 Sulzer Textil Ag Système et procédé pour régler le pince-fil d'une pince d'amenée et métier à tisser avec un tel système
US6155309A (en) * 1999-01-12 2000-12-05 Sulzer Textil Ag Settable weft clamping and severing apparatus
EP1020550A1 (fr) * 1999-01-12 2000-07-19 Sulzer Textil Ag Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif
WO2007137544A1 (fr) * 2006-05-31 2007-12-06 Lindauer Dornier Gesellschaft Mbh ProcÉdÉ et dispositif pour former une lisiÈre sur un mÉtier À tisser À pinces
US7694697B2 (en) 2006-05-31 2010-04-13 Lindauer Dornier Gesellschaft Mbh Apparatus for forming a selvedge on a gripper weaving machine
WO2013007551A2 (fr) 2011-07-12 2013-01-17 Picanol Dispositif et procédé de serrage d'un fil de trame
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
US10472745B2 (en) 2015-09-10 2019-11-12 Lindauer Dornier Gesellschaft Mit Beschraenkter Haftung Weaving machine with an apparatus as well as method for holding, feeding and inserting weft threads in a loom shed

Also Published As

Publication number Publication date
DE59306205D1 (de) 1997-05-22
JP3413809B2 (ja) 2003-06-09
JPH07150443A (ja) 1995-06-13
US5492153A (en) 1996-02-20
EP0644286B1 (fr) 1997-04-16

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