EP0715010A1 - Méthode pour éviter les fautes de tissage sur les tissus unis et à poils - Google Patents

Méthode pour éviter les fautes de tissage sur les tissus unis et à poils Download PDF

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Publication number
EP0715010A1
EP0715010A1 EP95116613A EP95116613A EP0715010A1 EP 0715010 A1 EP0715010 A1 EP 0715010A1 EP 95116613 A EP95116613 A EP 95116613A EP 95116613 A EP95116613 A EP 95116613A EP 0715010 A1 EP0715010 A1 EP 0715010A1
Authority
EP
European Patent Office
Prior art keywords
weaving
fabric
emitted
weft
setpoint
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
EP95116613A
Other languages
German (de)
English (en)
Other versions
EP0715010B1 (fr
Inventor
Peter D. Dornier
Adnan Dr. Wahhoud
Peter Czura
Hans-Dieter Dr. Scorl
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 EP0715010A1 publication Critical patent/EP0715010A1/fr
Application granted granted Critical
Publication of EP0715010B1 publication Critical patent/EP0715010B1/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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • 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 tissue defects in smooth and pile tissues, e.g. due to a pattern-related change in operating parameters, e.g. a current target speed of the weaving machine or a current target operating pressure of the auxiliary nozzles arise during the weaving process.
  • a pattern-related change in operating parameters e.g. a current target speed of the weaving machine or a current target operating pressure of the auxiliary nozzles arise during the weaving process.
  • transitional operating conditions occur briefly during each parameter change within a weaving process.
  • a transitional operating condition is to be understood as the time period in the within the control z. B. is switched from a first effective target operating pressure of the auxiliary blowing nozzles to a second, a third or a further effective target operating pressure and the relevant parameter comes into effect.
  • a necessary change in the speed of the weaving machine can also be seen from this perspective.
  • the object of the invention is therefore to provide a process sequence for an air jet loom, according to which a change in operating parameters within a weaving program or variations in the pattern program during the weaving process do not allow errors in the fabric and a weaving machine stop based on the program changes or the pattern variation is excluded.
  • the weft thread insertion is interrupted when the shed is at a standstill or changing and only so-called fluidic or not fluidic wefts are delivered and the warp let-off and the goods take-off device is controlled depending on the number or the duration of the wasted shots delivered so that the fabric edge of the fabric is held in a position away from the stop position of the sley.
  • Design features of the main claim are shown in the dependent claims and in the following embodiment.
  • the sequence of the method according to the invention is as follows:
  • the weaving program 17 signals to the controller 9 that a weft thread type is pending for processing, which has different processing parameters compared to a thread type that has already been processed, and consequently a target speed other than the current target speed or a different target operating pressure than the current target -Operating pressure required, the controller 9 receives a signal via at least the lines 19, 20 of the weaving program, after which a speed and / or operating pressure change in the drive 6 and / or in the pressure supply 7 is initiated.
  • so-called transitional operating conditions are established in the weaving machine, during which the weft thread insertion is prevented and the weft thread insertion means 2 only emit so-called empty wefts.
  • the fabric take-off device and the warp let-off device are also influenced via the signal lines 11, 12 in such a way that the fabric stop edge of the fabric is held from a position remote from the stop position of the reed. This ensures that the reed does not strike the edge of the fabric during the transitional operating conditions, thus causing undesired tissue compression in the area of the edge of the fabric.
  • the shed forming device 5 can receive a signal from the controller 9 via the line 13, after which the heald frames form a closed shed; the heald frames are therefore in a specialist center position and therefore have no influence on the warp tension.
  • Such measures are of a technical nature, they support the effectiveness of the solution according to the invention.
  • Transitional operating conditions are also set automatically when the freely programmable pattern parameters binding type and pile height undergo a change within the weaving program.
  • the weaving machine speed and operating pressure of the auxiliary nozzles have adjusted to the new setpoint, the end of the transitional operating conditions has been reached.
  • the goods edge of the fabric is returned to the position it had before the transitional operating conditions came into effect.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP95116613A 1994-10-29 1995-10-21 Méthode pour éviter les fautes de tissage sur les tissus unis et à poils Expired - Lifetime EP0715010B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4438762 1994-10-29
DE4438762A DE4438762C1 (de) 1994-10-29 1994-10-29 Verfahren zur Vermeidung von Gewebefehlern in Glatt- und Polgeweben

Publications (2)

Publication Number Publication Date
EP0715010A1 true EP0715010A1 (fr) 1996-06-05
EP0715010B1 EP0715010B1 (fr) 1997-08-13

Family

ID=6532061

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116613A Expired - Lifetime EP0715010B1 (fr) 1994-10-29 1995-10-21 Méthode pour éviter les fautes de tissage sur les tissus unis et à poils

Country Status (4)

Country Link
US (1) US5590692A (fr)
EP (1) EP0715010B1 (fr)
JP (1) JP2918825B2 (fr)
DE (2) DE4438762C1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6588192B1 (en) 1998-05-11 2003-07-08 Chatham, Inc. Methods of making new chenille yarns for high speed weaving applications and improved product wear performance
US6107218A (en) * 1998-05-11 2000-08-22 Chatham Incorporated Chenille yarn for high speed weaving applications and improved product wear performance
JP3654350B2 (ja) * 2001-07-11 2005-06-02 津田駒工業株式会社 緯糸引き戻し制御方法
JP2013028870A (ja) * 2011-07-27 2013-02-07 Tsudakoma Corp 織機における製織方法及び製織装置
JP5826549B2 (ja) * 2011-07-27 2015-12-02 津田駒工業株式会社 織機における製織方法及び製織装置
DE102013207805A1 (de) * 2013-04-29 2014-10-30 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren zum Einlegen von Schussfadenenden an einer Webmaschine mit Zusatzschusseffekten
JP7077968B2 (ja) * 2019-01-14 2022-05-31 株式会社豊田自動織機 エアジェット織機の緯糸処理装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137681A1 (de) 1990-11-19 1992-05-27 Toyoda Automatic Loom Works Verfahren und vorrichtung zur verhinderung der erzeugung eines schussstreifens in einem duesenwebstuhl
EP0567428A1 (fr) 1992-04-22 1993-10-27 Sulzer RàœTi Ag Procédé pour démarrer un métier à tisser et métier à tisser pour effectuer ce procédé

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2592645B2 (ja) * 1988-03-28 1997-03-19 津田駒工業株式会社 織機の集中制御方法
SE8900534D0 (sv) * 1989-02-16 1989-02-16 Iro Ab Anordning foer att i eller vid textilmaskin styra och/eller oevervaka i foersta hand fournisoersorgan/fournisoersfunktioner
DE59307142D1 (de) * 1992-04-22 1997-09-25 Rueti Ag Maschf Verfahren zum Starten einer Webmaschine und Webmaschine zur Durchführung des Verfahrens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4137681A1 (de) 1990-11-19 1992-05-27 Toyoda Automatic Loom Works Verfahren und vorrichtung zur verhinderung der erzeugung eines schussstreifens in einem duesenwebstuhl
EP0567428A1 (fr) 1992-04-22 1993-10-27 Sulzer RàœTi Ag Procédé pour démarrer un métier à tisser et métier à tisser pour effectuer ce procédé

Also Published As

Publication number Publication date
JPH08260299A (ja) 1996-10-08
DE4438762C1 (de) 1995-09-28
JP2918825B2 (ja) 1999-07-12
DE59500507D1 (de) 1997-09-18
US5590692A (en) 1997-01-07
EP0715010B1 (fr) 1997-08-13

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