EP0478986A1 - Dispositif de sélection et d'alimentation de fil de trame pour métiers à tisser - Google Patents

Dispositif de sélection et d'alimentation de fil de trame pour métiers à tisser Download PDF

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Publication number
EP0478986A1
EP0478986A1 EP91115150A EP91115150A EP0478986A1 EP 0478986 A1 EP0478986 A1 EP 0478986A1 EP 91115150 A EP91115150 A EP 91115150A EP 91115150 A EP91115150 A EP 91115150A EP 0478986 A1 EP0478986 A1 EP 0478986A1
Authority
EP
European Patent Office
Prior art keywords
thread
belt
feeders
weft
drive wheel
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
EP91115150A
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German (de)
English (en)
Other versions
EP0478986B1 (fr
Inventor
Walter Kleiner
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 EP0478986A1 publication Critical patent/EP0478986A1/fr
Application granted granted Critical
Publication of EP0478986B1 publication Critical patent/EP0478986B1/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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/38—Weft pattern mechanisms

Definitions

  • the invention relates to a weft selection and feeding device for a weaving machine according to the preamble of claim 1.
  • Known selection devices such as BE 8800691 or CH 1285/87 use push and pull elements which are moved by control cams and to which transmission elements, which are coupled to thread feeders, are coupled or uncoupled by means of electromagnets.
  • the mechanics required for such devices include, in addition to the control cams, a large number of levers, pawls, springs, pivot points and magnets. These devices are therefore susceptible to functional reliability and wear at the high weaving speeds that can be achieved today and can be an unpleasant source of noise; In addition, careful guiding of the weft threads is at risk due to the susceptibility to vibrations.
  • the invention has for its object to provide a simple and reliable selection and feeding device that is easy to use and easy to service.
  • the device consists of a housing with a flanged electric motor, preferably a stepper motor or DC motor.
  • a drive wheel is rotatably arranged on the motor shaft.
  • a deflection wheel is attached to the housing below the drive wheel.
  • a belt, preferably a toothed belt, or a roller chain wraps around the two wheels.
  • a thread feeder is attached to each of the two belt strands so that one thread feeder is in the ready position, while the other is in the transfer position. If the thread feeders have to change their end positions, the electronically controlled motor turns the drive wheel in the corresponding direction until the thread feeders have reversed their end positions. The thread feeders remain in their end position until another weft thread has to be woven in according to the pattern.
  • the feed device is only used with one thread feeder, but one device for each weft thread. But it is also possible with more than two different weft threads to electronically control the feed device, each with two thread feeders, so that three holding and rest positions are created for the thread feeders, thereby for e.g. eight weft threads only four feeders are needed.
  • one thread feeder is always in the transfer position, the other thread feeder is in the standby position "high”, while the thread feeders of the other feed device remain in the standby position "center”, where the thread eyelets cross, and no weft threads can be taken away by the weft insertion organ.
  • Each thread feeder is in one of the three positions according to the model control program for the electric motors and changes the positions during the weaving process.
  • weft threads 17 are drawn from supply bobbins 16 by a weft insertion member and inserted into the shed.
  • the selection and the presentation of the weft threads 17 is carried out according to the pattern by electronic control of the electric motor 2, which is fastened to the housing 1 and has a drive wheel 4 connected to it in a form-fitting manner on the motor shaft 3.
  • the deflection wheel 5 is rotatably fastened to the housing 1 and the center distance and the difference in diameter of the drive wheel 4 and the deflection wheel 5 are dimensioned such that the elongated straight belt strand of the looping belt 6 intersects in the transfer position U.
  • the thread feeders 7, 7a are attached by means of fastening elements 8 and, guided by the guide 10, run parallel to the belt runs.
  • the weft threads 17, 17a slide through the thread eyelets 9 of the thread feeders 7, 7a.
  • the thread feeder 7 with the thread eyelet 9 and weft thread 17 is in the transfer position U while thread feeder 7a with the thread eyelet 9 with weft thread 17a is in the standby position B. If the weft 17a must be brought into the transfer position U according to the pattern, the electric motor 2 is controlled accordingly and the drive wheel 4 drives the belt 6 and moves the thread feeder 7a with the weft thread 17a into the transfer position U, while the thread feeder 7 inevitably into the standby position B. drives back.
  • the weft threads 17, 17a are crossed halfway with a mutual distance so that the threads do not hang together.
  • control program for the electric motors is programmed in such a way that of all the devices used, only the sample thread feeder is in the transfer position U, while all other thread feeders are in the standby position B ', as shown in FIG. 3, or one thread feeder is in the standby position B is.
  • the thread feeders 14, 14a are arranged between two belts 12, 12a in the plane 11 of the belt pull fiber inlays 13 and are clamped to them in a form-fitting manner by means of the fastening elements 8. Due to the common plane of movement of the belt and the thread feeder, there are no bending and tilting moments as a result of acceleration and deceleration forces caused by the thread feeder movements on the belt. An additional guide for the thread feeder is not necessary with this arrangement. One thread feeder per device, or two, can be used.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP91115150A 1990-10-05 1991-09-07 Dispositif de sélection et d'alimentation de fil de trame pour métiers à tisser Expired - Lifetime EP0478986B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3215/90A CH682498A5 (de) 1990-10-05 1990-10-05 Schussfadenauswahl- und Zuführvorrichtung für Webmaschine.
CH3215/90 1990-10-05

Publications (2)

Publication Number Publication Date
EP0478986A1 true EP0478986A1 (fr) 1992-04-08
EP0478986B1 EP0478986B1 (fr) 1994-10-12

Family

ID=4251138

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91115150A Expired - Lifetime EP0478986B1 (fr) 1990-10-05 1991-09-07 Dispositif de sélection et d'alimentation de fil de trame pour métiers à tisser

Country Status (5)

Country Link
US (1) US5172735A (fr)
EP (1) EP0478986B1 (fr)
JP (1) JP2620439B2 (fr)
CH (1) CH682498A5 (fr)
DE (1) DE59103223D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598264A1 (fr) * 1992-11-16 1994-05-25 Picanol N.V. Dispositif pour sélectionner et présenter des fils de trame pour un métier à tisser
DE4325905C1 (de) * 1993-08-02 1994-10-06 Dornier Gmbh Lindauer Vorrichtung zum Zuführen von Schußfäden zu einem Schußfadeneintragorgan in Webmaschinen
EP0896075A3 (fr) * 1997-08-07 1999-06-16 NUOVA VAMATEX S.p.A. Dispositif de présentation de fil de trame pour métiers à tisser
EP1496145A1 (fr) * 2003-07-10 2005-01-12 Stäubli GmbH Dispositif de sélection de trame pour métier à tisser
US7694697B2 (en) 2006-05-31 2010-04-13 Lindauer Dornier Gesellschaft Mbh Apparatus for forming a selvedge on a gripper weaving machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102507089B (zh) * 2011-11-30 2013-07-24 长春理工大学 车门闭合力测试仪标定装置及方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293558A1 (fr) * 1987-04-03 1988-12-07 GebràœDer Sulzer Aktiengesellschaft Sélecteur de trame pour un métier à tisser
EP0346966A1 (fr) * 1988-06-17 1989-12-20 Picanol N.V. Dispositif pour présenter les fils de trame dans les métiers à tisser

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3812960A1 (de) * 1987-10-06 1989-04-20 Textilma Ag Greiferwebmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0293558A1 (fr) * 1987-04-03 1988-12-07 GebràœDer Sulzer Aktiengesellschaft Sélecteur de trame pour un métier à tisser
EP0346966A1 (fr) * 1988-06-17 1989-12-20 Picanol N.V. Dispositif pour présenter les fils de trame dans les métiers à tisser

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0598264A1 (fr) * 1992-11-16 1994-05-25 Picanol N.V. Dispositif pour sélectionner et présenter des fils de trame pour un métier à tisser
BE1006347A3 (nl) * 1992-11-16 1994-07-26 Picanol Nv Inrichting voor het presenteren van inslagdraden bij weefmachines.
US5400834A (en) * 1992-11-16 1995-03-28 Picanol, N.V. Apparatus for selectively moving weft feeders between a rest position and a feed position
EP0763613A2 (fr) 1992-11-16 1997-03-19 Picanol N.V. Dispositif pour sélectionner et présenter des fils de trame pour un métier à tisser
EP0763613A3 (fr) * 1992-11-16 1997-10-01 Picanol Nv Dispositif pour sélectionner et présenter des fils de trame pour un métier à tisser
DE4325905C1 (de) * 1993-08-02 1994-10-06 Dornier Gmbh Lindauer Vorrichtung zum Zuführen von Schußfäden zu einem Schußfadeneintragorgan in Webmaschinen
EP0638677A1 (fr) * 1993-08-02 1995-02-15 Lindauer Dornier Gesellschaft M.B.H Dispositif pour amener des fils de trame à un inséreur de trame dans les métiers à tisser
EP0896075A3 (fr) * 1997-08-07 1999-06-16 NUOVA VAMATEX S.p.A. Dispositif de présentation de fil de trame pour métiers à tisser
EP1496145A1 (fr) * 2003-07-10 2005-01-12 Stäubli GmbH Dispositif de sélection de trame pour métier à tisser
US7694697B2 (en) 2006-05-31 2010-04-13 Lindauer Dornier Gesellschaft Mbh Apparatus for forming a selvedge on a gripper weaving machine

Also Published As

Publication number Publication date
CH682498A5 (de) 1993-09-30
JPH05132838A (ja) 1993-05-28
EP0478986B1 (fr) 1994-10-12
DE59103223D1 (de) 1994-11-17
JP2620439B2 (ja) 1997-06-11
US5172735A (en) 1992-12-22

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