EP2388361A1 - Poignée et dispositif d'entrée de fils de trame pour un métier à tisser à pince - Google Patents

Poignée et dispositif d'entrée de fils de trame pour un métier à tisser à pince Download PDF

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Publication number
EP2388361A1
EP2388361A1 EP10163061A EP10163061A EP2388361A1 EP 2388361 A1 EP2388361 A1 EP 2388361A1 EP 10163061 A EP10163061 A EP 10163061A EP 10163061 A EP10163061 A EP 10163061A EP 2388361 A1 EP2388361 A1 EP 2388361A1
Authority
EP
European Patent Office
Prior art keywords
torsion bar
jaw
clamping
gripper
gripper 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.)
Withdrawn
Application number
EP10163061A
Other languages
German (de)
English (en)
Inventor
Dirk Troendle
Fabian Neuhaus
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.)
Textilma AG
Original Assignee
Textilma 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 Textilma AG filed Critical Textilma AG
Priority to EP10163061A priority Critical patent/EP2388361A1/fr
Priority to CN201180035493.7A priority patent/CN103003479B/zh
Priority to BR112012029307A priority patent/BR112012029307A2/pt
Priority to PCT/EP2011/053344 priority patent/WO2011144368A2/fr
Priority to EP11707403.9A priority patent/EP2572022B1/fr
Publication of EP2388361A1 publication Critical patent/EP2388361A1/fr
Priority to HK13105367.9A priority patent/HK1178578A1/xx
Withdrawn legal-status Critical Current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
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers

Definitions

  • the invention relates to a gripper for a rapier according to the preamble of claim 1. Furthermore, the invention relates to a weft insertion device with a corresponding gripper.
  • rapier looms of the weft thread is usually introduced by a Bringgreifer from one side into the shed and then - usually in about the middle of the shed - passed a Holgreifer, which then pulls the weft from the shed.
  • gripping elements are formed in a gripping head in both grippers. The grippers move along along guide elements which are attached to the reed.
  • a gripper for introducing a weft thread with a pivotable clamping tongue which is connected to a rotatable shaft part and is under the action of a torsion spring to clamp the weft thread.
  • the torsion spring as a torsion bar spring in such a way that it is rotatably connected at one end to the shaft portion and is connected to the other end via adjusting means with the housing of the gripper.
  • Such a configuration has proven to be advantageous in principle, since the weft thread is subjected to little stress and thus very sensitive threads can be used.
  • EP-A-0 690 160 Another type of weft insertion device is known, in which permanent magnets are provided for the gripping elements, which are secured by correspondingly arranged electromagnetic devices on the guide elements effect an opening or closing of the gripper heads controlled for the Bringgreifer and the Holgreifer.
  • the gripper device of EP-A-0 690 160 has the disadvantage that can easily cause a strain of the weft thread by the difficult to control when passing force.
  • CH-A-556 930 has been proposed for less strain on the weft thread to form a gripper with a movable clamping part and a stationary abutment, wherein the counter bearing a soft elastic pad is provided with a floating mounted thereon, wear-resistant support part.
  • the in the CH-A-556 930 proposed embodiment is characterized in that the support member held by its shape and the elasticity of the soft elastic pad (clamped) and thereby replacement or removal of the support member is made possible. In practice, however, have problems with it, especially in terms of wear.
  • the object of the invention is to improve a gripper device for the weft insertion of a rapier of the type described above and to ensure a safe entrainment of the thread at high weft insertion frequencies.
  • the object is achieved by a gripper device according to claim 1.
  • the measures of the invention initially have the consequence that - especially at high operating frequencies - a weft threads gentle operation of the clamping tongue is possible.
  • the gripper ensures according to the present invention, even at high speeds of the loom safe, trouble-free and low-wear operation.
  • a mechanical actuator which was already known from the prior art, is provided for rotating the Torsionsstabes regardless of the permanent magnet means for releasing the clamping tongue of the jaw. This can be ensured in particular a setting, a manual insertion of the thread and a maintenance and troubleshooting.
  • An embodiment in which the clamping jaw is designed as a fixed clamping jaw and the torsion bar is arranged in a housing is advantageous.
  • an alternative, very advantageous embodiment of the invention is when the clamping tongue is pivotable by a further spring substantially transverse to the axis of the torsion bar, rests by the bias of the other spring on the jaw and can be solved by a twisting of the torsion bar of the jaw.
  • the torsion bar may have as a lever, cam or sliding means acting guide means by twisting of the torsion bar pivots the clamping tongue against their, caused by the bias of the other spring bias and releases from the jaw.
  • This can advantageously be formed in that the lever, cam or slide means is formed as a flattening section or equivalent design of the torsion bar, which in engagement with the clamping tongue this can rest against the jaw. This arrangement has considerable advantages in terms of picking the weft thread, forming a separately operable clamp and a separately operating torsion bar.
  • FIGS. 1 to 3 show a gripper to this embodiment.
  • the arranged on a rapier or a gripper bar 18 and guided along the shed 13 gripper has a housing, a clamping part with a clamping tongue 3 and an actuating tab 4 for manual or mechanical operation of the clamping tongue 3.
  • the housing of the gripper is made of plastic.
  • the clamping part is made of metal and is connected to the housing.
  • the torsion bar 1 is on the one hand operatively connected to an actuating tab 4 in a conventional manner.
  • the actuating tab 4 abuts against a stop 5.
  • the torsion bar 1 is operatively connected to a pair of oppositely poled permanent magnets 4 and 5.
  • these permanent magnets 4 and 5 are arranged as extension elements of a quasi-motor designed as a magnetic unit 16, wherein the arranged on the torsion bar 1 axis of rotation does not coincide with the magnets 14 and 15. This makes the motor assembly easier to manufacture.
  • the torsion bar 1 is rotated by its motor force acting on this magnet 7 on the two gripper magnets 14 and 15 against its bias in (twisted) and opens - when driving past for a short time - the clamping member 11 by the clamping tongue 3 is released from the jaw 17 and thereby releases the weft thread 12 or allows the weft thread to get into the clamping part 11.
  • the weft transfer completed. After the magnet unit (motor unit) 16 has disappeared from the effective range of the permanent magnet 7, the provision of the clamping tongue is due to the bias of the torsion bar.
  • the clamping force is set according to the characteristics of a weft thread.
  • FIG. 5 is shown schematically, is rotated by the motor force acting from this magnet 7 on the two gripper magnets 14 and 15, the torsion bar 1 against its bias in (twisted) and opens - when passing for a short time - the clamping part 11, by the biased by a spring and mounted by means of a mounting or clamping 25 clamping tongue 24 is lifted by the cam or link 23 of the jaw 17 and thus released from this, thereby releasing the weft thread 12 and allows the weft, in the clamping part to get.
  • arranged to form a "straight" terminal clamping tongue 24 is thus in an axis which is arranged substantially transverse to the axis of the torsion bar, and not - as in the embodiment described above - in the axis of the torsion bar.
  • This arrangement has considerable advantages in terms of picking the weft thread, forming a separately operable clamp and a separately operating torsion bar.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP10163061A 2010-05-18 2010-05-18 Poignée et dispositif d'entrée de fils de trame pour un métier à tisser à pince Withdrawn EP2388361A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP10163061A EP2388361A1 (fr) 2010-05-18 2010-05-18 Poignée et dispositif d'entrée de fils de trame pour un métier à tisser à pince
CN201180035493.7A CN103003479B (zh) 2010-05-18 2011-03-04 用于片梭织机的片梭和纬线插入装置
BR112012029307A BR112012029307A2 (pt) 2010-05-18 2011-03-04 pente e dispositivo de inserção de fio de trama para um tear de pente
PCT/EP2011/053344 WO2011144368A2 (fr) 2010-05-18 2011-03-04 Lance et dispositif d'insertion de fil de trame pour métier à tisser à lance
EP11707403.9A EP2572022B1 (fr) 2010-05-18 2011-03-04 Lance et dispositif d'insertion de fil de trame pour métier à tisser à lance
HK13105367.9A HK1178578A1 (en) 2010-05-18 2013-05-06 Gripper and weft-thread insertion device for a gripper weaving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10163061A EP2388361A1 (fr) 2010-05-18 2010-05-18 Poignée et dispositif d'entrée de fils de trame pour un métier à tisser à pince

Publications (1)

Publication Number Publication Date
EP2388361A1 true EP2388361A1 (fr) 2011-11-23

Family

ID=42937451

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10163061A Withdrawn EP2388361A1 (fr) 2010-05-18 2010-05-18 Poignée et dispositif d'entrée de fils de trame pour un métier à tisser à pince
EP11707403.9A Not-in-force EP2572022B1 (fr) 2010-05-18 2011-03-04 Lance et dispositif d'insertion de fil de trame pour métier à tisser à lance

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11707403.9A Not-in-force EP2572022B1 (fr) 2010-05-18 2011-03-04 Lance et dispositif d'insertion de fil de trame pour métier à tisser à lance

Country Status (5)

Country Link
EP (2) EP2388361A1 (fr)
CN (1) CN103003479B (fr)
BR (1) BR112012029307A2 (fr)
HK (1) HK1178578A1 (fr)
WO (1) WO2011144368A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105506837A (zh) * 2016-01-13 2016-04-20 东华大学 一种立体织机梭子夹取装置
CN110209069B (zh) * 2019-06-28 2020-03-31 武汉纺织大学 一种磁悬浮片梭精密引纬控制方法及系统、信息处理终端

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH556930A (de) 1972-08-14 1974-12-13 Dornier Gmbh Lindauer Schussfadeneintragvorrichtung an schuetzenlosen webmaschinen.
EP0690160A1 (fr) 1994-06-06 1996-01-03 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Méthode et dispositif d'insertion de trame pour métier à griffes
WO2000070136A1 (fr) 1999-05-17 2000-11-23 Textilma Ag Pince et dispositif d'insertion d'un fil de trame
WO2009026732A1 (fr) * 2007-08-28 2009-03-05 Textilma Ag Pince et dispositif d'entrée de fil de trame pour métier à pinces

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1058815A (zh) * 1991-07-27 1992-02-19 郭福成 磁力织机
DE29808997U1 (de) * 1998-05-18 1998-07-30 Textilma Ag, Hergiswil Greifer und eine Schusseintragvorrichtung für eine Greiferwebmaschine
DE10107311A1 (de) * 2001-02-16 2002-08-29 Iro Patent Ag Baar Fadengreifer
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
WO2008052369A1 (fr) * 2006-10-30 2008-05-08 Textilma Ag Dispositif d'insertion de fil de trame pour une machine à tisser à pinces

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH556930A (de) 1972-08-14 1974-12-13 Dornier Gmbh Lindauer Schussfadeneintragvorrichtung an schuetzenlosen webmaschinen.
EP0690160A1 (fr) 1994-06-06 1996-01-03 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Méthode et dispositif d'insertion de trame pour métier à griffes
WO2000070136A1 (fr) 1999-05-17 2000-11-23 Textilma Ag Pince et dispositif d'insertion d'un fil de trame
WO2009026732A1 (fr) * 2007-08-28 2009-03-05 Textilma Ag Pince et dispositif d'entrée de fil de trame pour métier à pinces

Also Published As

Publication number Publication date
EP2572022B1 (fr) 2015-10-28
WO2011144368A3 (fr) 2012-01-19
CN103003479A (zh) 2013-03-27
EP2572022A2 (fr) 2013-03-27
WO2011144368A2 (fr) 2011-11-24
BR112012029307A2 (pt) 2016-07-26
HK1178578A1 (en) 2013-09-13
CN103003479B (zh) 2014-05-07

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