EP0629726A1 - Procédé pour éviter un défaut de tissage et métier à tisser pour la mise en oeuvre de ce procédé - Google Patents

Procédé pour éviter un défaut de tissage et métier à tisser pour la mise en oeuvre de ce procédé Download PDF

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Publication number
EP0629726A1
EP0629726A1 EP93810428A EP93810428A EP0629726A1 EP 0629726 A1 EP0629726 A1 EP 0629726A1 EP 93810428 A EP93810428 A EP 93810428A EP 93810428 A EP93810428 A EP 93810428A EP 0629726 A1 EP0629726 A1 EP 0629726A1
Authority
EP
European Patent Office
Prior art keywords
weaving
weaving machine
fabric
warp
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.)
Withdrawn
Application number
EP93810428A
Other languages
German (de)
English (en)
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
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
Application filed by Sultex AG, Maschinenfabrik Rueti AG filed Critical Sultex AG
Priority to EP93810428A priority Critical patent/EP0629726A1/fr
Publication of EP0629726A1 publication Critical patent/EP0629726A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/002—Avoiding starting marks

Definitions

  • the invention relates to a method for avoiding a weaving error according to the preamble of claim 1 and a weaving machine for carrying out the method.
  • Mainly weaving errors in fabric formation are caused by weft errors and / or warp thread breaks because the weaving machine has to be brought to a standstill as a result.
  • other disorders can have the same effect.
  • the braking phase of the weaving machine extends over a substantial part or even more than one weaving cycle.
  • the invention seeks to remedy this.
  • the invention as characterized in claim 1, solves the problem of creating a method for avoiding weaving errors, by means of which the prerequisites are created for weaving machines with a high weft insertion rate to avoid the formation of contact points in the fabric.
  • a loom according to the invention for carrying out the method is characterized by the features of claim 6.
  • the warp beam 1 contains a warp beam 1, a tensioning beam 2, a shedding device 3 and a sley 4, as well as a breast beam 5, a goods take-off roller 6, a pressure roller 7 and a goods beam 8.
  • the warp beam 1 is with a warp let-off device 10 according to the Arrows 11 and 11a coupled to be drivable.
  • the goods take-off roller 6 is coupled to a goods take-off device 12 according to the arrows 13 and 13a.
  • warp threads 14 are against the fabric edge 15 by the shedding device 3 and guided by it as part of a fabric 16 formed there against the fabric tree 8 onto which the fabric 16 is wound.
  • the shedding device 3 contains a number of heald frames 17, only two of which are shown in the drawing, and a drive device 18, by means of which the heald frames 17 can each be adjusted to form a shed 20.
  • a weft insertion device coupled to the main drive of the loom by a weft insertion means, e.g. Compressed air or, as indicated in the drawing, e.g. band-shaped gripper element 21, a weft thread 22 is inserted, which in a stop position 4 'of the sley 4, which can be pivoted via a drive device 23, is attached to the fabric edge 15 and is integrated by a subsequent change of subject.
  • a weft insertion means e.g. Compressed air or, as indicated in the drawing, e.g. band-shaped gripper element 21, a weft thread 22 is inserted, which in a stop position 4 'of the sley 4, which can be pivoted via a drive device 23, is attached to the fabric edge 15 and is integrated by a subsequent change of subject.
  • the drives of the warp let-off device 10 and the goods take-off device 12 and the drive device 18 of the shedding device 3 can each be controlled by a common control device 24 in accordance with a weaving program.
  • the drive device 23 of the sley 4 can be coupled to the main drive of the weaving machine or, as shown, can also be controlled by itself via the control device 24.
  • the control device 24 is in a known manner via signal lines 27, 28, 30; 31, 32 can be influenced by control signals from numerous monitoring devices, by means of which, for example, the tension of the warp threads 14 and the weft threads 22 and the state of the fabric 16 formed are detected.
  • a sensor 25 for monitoring the position of the goods edge 15 and a number of guard elements 26 for detecting an error, for example an incorrectly entered weft thread 22, are indicated in the fabric 16 formed.
  • the guard elements 26 are parallel and in the same or different distances across the weaving width of the loom.
  • the sensor 25 and the monitor elements 26 are connected to the control device 24 via the signal lines 27 and 28, respectively.
  • Warp thread breaks are determined by a warp thread monitor device, not shown here, for example in a known manner.
  • the drives of the individual units of the weaving machine are coordinated with one another via the control device 24 and controlled in accordance with the predetermined weaving program during normal weaving operation.
  • the relevant monitoring element emits an interference signal to the control device 24.
  • the control device emits a switch-off signal for stopping the weaving machine and, at the same time, a control signal for shifting the fabric edge 15 into an avoidance position 15 '.
  • This control signal has the effect that the drive for the warp let-off device 10 and / or the goods take-off device 12 is briefly rotated faster. As a result, the fabric edge 15 is moved away from the stop position 4 'towards the evasive position 15', so that the incorrectly inserted weft thread is at least not hit with full force on the fabric edge by the reed 4.
  • Contact points that may appear after the weaving machine has been restarted can e.g. by a method as disclosed in European Patent Application No. 93810211.8 (T.890).
  • control device 24 in addition to the switch-off signal for stopping the weaving machine, the control device 24 also outputs a control signal for shortening the length of the loading stroke of the weaving sley.
  • the shutter drive device 23 is provided with a shutter control device as described, for example, in EP-A-350 446.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP93810428A 1993-06-15 1993-06-15 Procédé pour éviter un défaut de tissage et métier à tisser pour la mise en oeuvre de ce procédé Withdrawn EP0629726A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93810428A EP0629726A1 (fr) 1993-06-15 1993-06-15 Procédé pour éviter un défaut de tissage et métier à tisser pour la mise en oeuvre de ce procédé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810428A EP0629726A1 (fr) 1993-06-15 1993-06-15 Procédé pour éviter un défaut de tissage et métier à tisser pour la mise en oeuvre de ce procédé

Publications (1)

Publication Number Publication Date
EP0629726A1 true EP0629726A1 (fr) 1994-12-21

Family

ID=8214982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93810428A Withdrawn EP0629726A1 (fr) 1993-06-15 1993-06-15 Procédé pour éviter un défaut de tissage et métier à tisser pour la mise en oeuvre de ce procédé

Country Status (1)

Country Link
EP (1) EP0629726A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0950740A1 (fr) * 1998-03-21 1999-10-20 Günne Webmaschinenfabrik GmbH & Co. KG Procédé pour éviter des défauts de tissage et métier à tisse pour la mise en oeuvre de ce procédé

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2310570A1 (fr) * 1975-05-05 1976-12-03 Rydborn S A O Appareil pour indiquer si un ou plusieurs objets sont en mouvement
EP0350446A1 (fr) * 1988-07-08 1990-01-10 GebràœDer Sulzer Aktiengesellschaft Procédé de fabrication de tissu éponge et métier à tisser avec des organes de formation du poil
JPH02169749A (ja) * 1988-12-16 1990-06-29 Tsudakoma Corp 織機の運転方法
JPH0376848A (ja) * 1989-08-16 1991-04-02 Nissan Motor Co Ltd 織機の織段防止装置
EP0504110A1 (fr) * 1991-03-06 1992-09-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dispositif pour empêcher des bandes en trames dans un métier à tisser

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2310570A1 (fr) * 1975-05-05 1976-12-03 Rydborn S A O Appareil pour indiquer si un ou plusieurs objets sont en mouvement
EP0350446A1 (fr) * 1988-07-08 1990-01-10 GebràœDer Sulzer Aktiengesellschaft Procédé de fabrication de tissu éponge et métier à tisser avec des organes de formation du poil
JPH02169749A (ja) * 1988-12-16 1990-06-29 Tsudakoma Corp 織機の運転方法
JPH0376848A (ja) * 1989-08-16 1991-04-02 Nissan Motor Co Ltd 織機の織段防止装置
EP0504110A1 (fr) * 1991-03-06 1992-09-16 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Dispositif pour empêcher des bandes en trames dans un métier à tisser

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 14, no. 435 (C - 0760) 18 September 1990 (1990-09-18) *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 243 (C - 0843) 16 August 1989 (1989-08-16) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0950740A1 (fr) * 1998-03-21 1999-10-20 Günne Webmaschinenfabrik GmbH & Co. KG Procédé pour éviter des défauts de tissage et métier à tisse pour la mise en oeuvre de ce procédé

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