EP1020550B1 - Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif - Google Patents

Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif Download PDF

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Publication number
EP1020550B1
EP1020550B1 EP19990811111 EP99811111A EP1020550B1 EP 1020550 B1 EP1020550 B1 EP 1020550B1 EP 19990811111 EP19990811111 EP 19990811111 EP 99811111 A EP99811111 A EP 99811111A EP 1020550 B1 EP1020550 B1 EP 1020550B1
Authority
EP
European Patent Office
Prior art keywords
accordance
clamping
weft thread
clamping part
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
EP19990811111
Other languages
German (de)
English (en)
Other versions
EP1020550A1 (fr
Inventor
Klaus Berktold
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 EP19990811111 priority Critical patent/EP1020550B1/fr
Publication of EP1020550A1 publication Critical patent/EP1020550A1/fr
Application granted granted Critical
Publication of EP1020550B1 publication Critical patent/EP1020550B1/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
    • 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
    • D03D49/70—Devices for cutting weft threads

Definitions

  • the invention relates to a device for separating a into a shed weft to be entered and a weaving machine with such Contraption.
  • the weft thread runs from a supply spool over several functional units in the tissue and is through the Warp threads held. For a subsequent weft entry the submitted the weft in question to a rapier and by this in entered the shed, the weft thread becoming one of the Machine control is disconnected at a certain time.
  • the well-known Bring grippers have a thread clamp, the clamping force or Clamping gap is set beforehand. Have the weft threads to be entered different thicknesses and / or their surface quality different, so the weft threads when taking over penetrate to different depths into the clamping gap of the thread clamp. This can result in the weft not being securely clamped or held or even damaged.
  • the document EP-A-0 129 812 describes a device which on Entrance of the shed of a rapier loom is arranged for Guiding, braking and cutting a weft. To slow down the weft thread in the device mentioned with a resilient Sheet metal plates pressed onto a cutting edge of the cutting device.
  • the invention has for its object a device for separation to improve a weft thread to be entered in a shed.
  • the advantage that can be achieved with the invention is that a flawless clamping of the weft thread in the thread clamp in front of the Disconnection is guaranteed.
  • the clamping device 1 contains a fixed clamping part 4, one Leaf spring 5 and an adjusting screw 6.
  • the fixed clamping part 4 is on the cutting device mounted and the leaf spring 5 is on the one hand fixed clamp part and is on the other hand with one end of the Set screw 6 connected.
  • the set screw can be rotated in a holder 7 arranged so that by turning the adjusting screw the pressing force can be changed.
  • the cutting device 2 has a motor 11 and a knife 12 with a circular cutting edge, which on the Motor axis is attached.
  • the fixed clamp part also forms one Guide to guide the weft against the cutting edge.
  • a knife 13 can be used instead of the cutting device provided that e.g. is fixed to the fixed clamping part 4.
  • this device differs from that according to FIG 1 in that a linear motor 14 instead of the set screw is provided to change the pressing force.
  • This device contains the clamping device 21 and the cutting device 2.
  • Die Clamping device comprises a fixed clamping part 22, a movable jaw 23 and a linear motor 24.
  • the fixed Clamping part 22 is arranged in a stationary manner.
  • the jaw 23 is relative to that fixed clamping part 22 pivotally arranged and mechanical Transmission means 25 connected to the linear motor 24.
  • the device comprises the clamping device 21 and a cutting device 31.
  • Die Cutting device 31 contains a fixed knife 32, a movable knife Knife 33 and a linear motor 34.
  • the movable knife 33 contains a U-shaped section 35 to receive the weft and against the cutting edge of the fixed knife.
  • the Linear motor 34 includes a stator 36, an armature 37 and two leaf springs 38, which serve as bearing parts for the anchor, so that the anchor is a performs linear movement.
  • the movable knife 33 is over mechanical transmission elements 39 with the armature of the linear motor 34 connected. As shown in Fig. 8, one can adjust the clamping force Set screw 40 can be applied.
  • FIG. 9 shows a schematic representation of an arrangement for Inserting a weft thread by means of a bringer gripper 52, the one Has thread clamp.
  • the arrangement essentially comprises one Weft thread supply 53, a weft thread store 54, a thread brake 55, a sensor 56 for measuring the thread tension, thread feeder 57 as Part of a color selector, not shown, the device 1 for separating the Weft, a control device 58 and a signal transmitter 59, which emits a signal specific to the weft thread being presented.
  • the thread feeder 57 a weft thread is laid in the carrier gripper 52 career.
  • the Weft thread is removed from the thread clamp of the rapier 52 recorded and transported in the direction of the shed.
  • the Pulling weft thread into the clamping device 1 and holding it back.
  • the motor 11 is switched on, so that the knife 12 rotates.
  • With the measure the weft thread by means of a clamp hold back the weft thread in the nip of the thread clamp of the grabber. This ensures that the weft thread in the thread clamp of the hand gripper depending on the thread specific adjustable clamp 5 is held securely and consequently more advantageously Way thread losers and fabric defects can be avoided.
  • the device comprises a clamping device 1 with a fixed one Clamping part 4 and adjustable clamping part 5 to the weft hold back and a cutter 2 to post the weft Disconnect release by the clamping device 1.

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

Claims (10)

  1. Dispositif de sectionnement d'un fil de trame à insérer dans une foule, ce dispositif étant disposé latéralement à côté de la trajectoire d'une griffe donneuse (52), caractérisé par une installation de serrage (1;21) avec une partie de serrage fixe (4;22) et une partie de serrage réglable (5;23) pour retenir le fil de trame recueilli par la griffe donneuse et convoyé en direction de la foule et par une installation de coupe (2;13;31) pour sectionner le fil de trame après la libération par l'installation de serrage.
  2. Dispositif selon la revendication 1, caractérisé en ce que la partie de serrage réglable est un ressort à lames (5).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la partie de serrage réglable est réalisée comme mâchoire de serrage (23) qui est apte à pivoter par rapport à la partie de serrage fixe (22).
  4. Dispositif selon la revendication 1, caractérisé par un moyen de réglage (6;40) qui est relié à la partie de serrage réglable (5;23) pour régler la force de serrage de l'installation de serrage.
  5. Dispositif selon la revendication 4, caractérisé en ce que le moyen de réglage est une vis de réglage (6;40).
  6. Dispositif selon la revendication 4, caractérisé en ce que le moyen de réglage est un moteur linéaire (14;24).
  7. Dispositif selon la revendication 1, caractérisé en ce que l'installation de coupe comporte un couteau fixe (13; 32).
  8. Dispositif selon la revendication 1, caractérisé en ce que l'installation de coupe présente un couteau tournant (12).
  9. Dispositif selon la revendication 1, caractérisé en ce que l'installation de coupe présente un couteau fixe (32) et un couteau mobile (33), et en ce que le couteau mobile présente un tronçon (35) pour tenir le fil de trame et pour le déplacer vers le couteau fixe (32).
  10. Métier à tisser comportant un dispositif selon l'une des revendications 1 à 9.
EP19990811111 1999-01-12 1999-12-02 Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif Expired - Lifetime EP1020550B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990811111 EP1020550B1 (fr) 1999-01-12 1999-12-02 Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP99810015 1999-01-12
EP99810015 1999-01-12
EP19990811111 EP1020550B1 (fr) 1999-01-12 1999-12-02 Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP1020550A1 EP1020550A1 (fr) 2000-07-19
EP1020550B1 true EP1020550B1 (fr) 2004-07-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990811111 Expired - Lifetime EP1020550B1 (fr) 1999-01-12 1999-12-02 Dispositif pour séparer un fil de trame devant être inséré dans une foule, ainsi que métier à tisser équipé d'un tel dispositif

Country Status (1)

Country Link
EP (1) EP1020550B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1871386B (zh) * 2003-10-21 2010-12-08 必佳乐有限公司 用于选择和喂给纬纱的方法以及具有用于选择和喂给纬纱的装置的剑杆式引纬织机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5013248A (en) * 1989-09-19 1991-05-07 Amp Incorporated Multicircuit connector assembly
EP1918437A1 (fr) 2006-11-02 2008-05-07 Sultex AG Procédé et dispositif pour l'insertion du fil de trame
TWI732251B (zh) * 2018-09-27 2021-07-01 義大利商桑德森力瑪集團有限公司 用於無梭子紡織機的緯紗切割裝置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1303453A (fr) * 1970-07-06 1973-01-17
US4054159A (en) * 1973-10-04 1977-10-18 Societe Alsacienne De Constructions Mecaniques De Mulhouse Picking method for a shuttleless weaving machine
IT1017877B (it) * 1974-08-02 1977-08-10 Nuovo Pignone Spa Dispositivo per trattenere il capo di trama reciso che deve essere ri piegato nel passo d ordito per for mare una cimossa in un tessuto fab bricato con un telaio senza navetta ad alimentazione continua dei fili di trama
IT1163596B (it) * 1983-06-24 1987-04-08 Vamatex Spa Dispositivo di guida e di frenatura del filo di trama all'ingresso del passo in telai di tessitura senza navette
DE59306205D1 (de) * 1993-09-20 1997-05-22 Rueti Ag Maschf Anordnung zum Vorlegen von Schussfäden
DE59604371D1 (de) * 1996-07-03 2000-03-09 Sulzer Textil Ag Rueti Vorrichtung an einer Greiferwebmaschine zum Erkennen eines fehlerhaften Schussfadeneintrages

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1871386B (zh) * 2003-10-21 2010-12-08 必佳乐有限公司 用于选择和喂给纬纱的方法以及具有用于选择和喂给纬纱的装置的剑杆式引纬织机

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EP1020550A1 (fr) 2000-07-19

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