WO2003102282A1 - Procede permettant de maintenir un fil de trame tendu et machine a tisser permettant d'executer ce procede - Google Patents

Procede permettant de maintenir un fil de trame tendu et machine a tisser permettant d'executer ce procede Download PDF

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Publication number
WO2003102282A1
WO2003102282A1 PCT/DE2003/001434 DE0301434W WO03102282A1 WO 2003102282 A1 WO2003102282 A1 WO 2003102282A1 DE 0301434 W DE0301434 W DE 0301434W WO 03102282 A1 WO03102282 A1 WO 03102282A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixing tube
weft thread
air flow
center axis
longitudinal center
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.)
Ceased
Application number
PCT/DE2003/001434
Other languages
German (de)
English (en)
Inventor
Peter D. Dornier
Adnan Wahhoud
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
Priority to EP03735272A priority Critical patent/EP1509645A1/fr
Priority to BR0304920-5A priority patent/BR0304920A/pt
Priority to US10/516,555 priority patent/US20050236062A1/en
Priority to JP2004509150A priority patent/JP2005528535A/ja
Publication of WO2003102282A1 publication Critical patent/WO2003102282A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • D03D47/3026—Air supply systems
    • D03D47/3053—Arrangements or lay out of air supply systems
    • 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
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main nozzles

Definitions

  • the invention relates to a method for keeping a weft thread in the mixing tube of the main nozzle of an air jet weaving machine, according to which a length of the weft thread, which is preferably supplied by a prewinder, is acted upon in the mixing tube of the main nozzle by an air stream exerting a tensile force on the weft thread, which air flow is below is at a predetermined pressure level.
  • the invention further relates to an air jet weaving machine for carrying out the method with at least one pneumatically actuated weft thread insertion means having a mixing tube, with at least one controllable valve operatively connected to the weft thread insertion means via a pressure line for acting on the length section of a weft thread preferably supplied by a prewinder in the mixing tube with a predetermined pressure level of an air flow, with at least one pneumatic pressure source and with a programmable weaving machine control for controlling the at least one controllable valve.
  • the weft thread to be inserted into the shed is made available to the pneumatically acting weft thread insertion means, hereinafter referred to as the main nozzle, with a predetermined length on air jet looms.
  • a length section of the weft thread to be inserted into the shed is located in the mixing tube of the main nozzle, while a further length section of the weft thread is located between the main nozzle and the thread store and on the thread store itself and is held on the thread store by suitable means for the duration of at least one weaving cycle ,
  • the length section of the weft thread located in the mixing tube of the main nozzle is kept stretched with the aid of an air flow acting in the direction of the longitudinal center axis of the mixing tube.
  • the time to keep the weft thread stretched is usually increased by an amount that can span several weaving cycles.
  • the object is achieved in that a below a predetermined
  • Pressure level P2 standing air flow for a predetermined period of time at an angle that is greater than zero degrees to the longitudinal center axis of the mixing tube on the end portion of the length section of a weft thread held in the mixing tube of the main nozzle.
  • the predetermined period of time for the loading of the weft end area corresponds at least to the duration of a weaving cycle.
  • the duration of exposure to the weft end area is greater than a weaving cycle if, depending on the pattern, several main nozzles are used to produce a fabric.
  • the air flow acting on the weft end region is emitted at an angle to the longitudinal center axis of the mixing tube.
  • the front end of the weft thread is thus deflected from approximately the plane of the longitudinal center axis of the mixing tube.
  • the air flow acting on the weft end area thus holds the Weft stretched from the thread storage device to the deflection point in the mixing tube.
  • the structure of the weft thread is not affected by the so-called holding air.
  • the length of the deflected end of the weft thread is defined such that it can be cut off by the warp threads after the weft thread has been inserted into the shed and after it has tied.
  • the weft thread end area with its structure, which is changed by the holding air, for example, is therefore not part of the fabric produced.
  • the mixing tube of the main nozzle has a device in the region of its free end which deflects the front end of the weft thread from the plane of the longitudinal center axis of the mixing tube by means of an air stream.
  • the wall of the mixing tube e.g. perpendicular to the longitudinal center axis of the
  • the inlet channel is connected via a pressure line to a valve which can be controlled by the weaving machine control.
  • the device can consist of a separate connecting piece which is connected to the free end of the mixing tube or it can consist of a separate intermediate piece which is integrated into the mixing tube.
  • the connection piece or the intermediate piece has an inlet channel with an outlet and an inlet of an outlet channel arranged diametrically opposite the outlet of the inlet channel.
  • the center axis of the inlet and outlet channels is arranged transversely to the longitudinal center axis of the mixing tube.
  • the main nozzle 1 comprises the injector 3 which can be screwed into the mixing tube body 2 and the mixing tube 4 connected to the mixing tube body 2.
  • a device In the area of the free end of the mixing tube 4, a device is provided according to the invention which allows the front end 5a of a weft thread 5 to be deflected from approximately the plane of the longitudinal center axis 4a of the mixing tube 4 by means of an air stream in the direction of the vertically running longitudinal center axis 17 of the device.
  • the direction arrow symbolically represented as pressure line 8, shows the direction of flow of the air flow.
  • the device consists of an inlet channel 6, preferably penetrating the wall 4b of the mixing tube 4, and an inlet 7a of an outlet channel 7 arranged diametrically opposite the outlet 6a of the inlet channel 6.
  • the pressure P2 of the air flow supplied by a pressure source 10 is applied to a valve 9, which e.g. is an electromagnetically controlled valve.
  • the valve 9 is connected to the control electronics 11 of the loom via the control line 12 in a signal-transmitting manner.
  • a further valve 13 which is also connected to the control electronics 11 of the weaving machine in a signal-transmitting manner via the control line 14, the pressure P 1 of an air flow acting on the weft thread 5 impulsively via the pressure line 15 is present, which air flow is symbolically represented by an arrow. This air flow serves to insert the weft thread into the shed.

Landscapes

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

Abstract

L'invention se rapporte à un procédé permettant de maintenir le fil de trame (5) tendu dans le tuyau de mélange (4) de la tuyère principale (1) d'une machine à tisser à jet d'air, ainsi qu'à une machine à tisser à jet d'air servant à exécuter ce procédé. L'objectif de cette invention est de supprimer un courant d'air qui agit sur la quasi-totalité de la longueur de la tuyère principale (1) et qui influe désavantageusement sur la structure du fil de trame (5) lors de sa phase de repos dans la tuyère principale (1) et de simultanément maintenir le fil de trame (5) tendu dans la tuyère principale (1). A cet effet, lors de la phase de repos du fil de trame (5), le courant d'air actionne uniquement l'extrémité avant (5a) de ce dernier dans le tuyau de mélange de la tuyère principale.
PCT/DE2003/001434 2002-05-31 2003-05-06 Procede permettant de maintenir un fil de trame tendu et machine a tisser permettant d'executer ce procede Ceased WO2003102282A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP03735272A EP1509645A1 (fr) 2002-05-31 2003-05-06 Procede permettant de maintenir un fil de trame tendu et machine a tisser permettant d'executer ce procede
BR0304920-5A BR0304920A (pt) 2002-05-31 2003-05-06 Processo para manter em posição estirada um fio de trama de um tear para realização do processo
US10/516,555 US20050236062A1 (en) 2002-05-31 2003-05-06 Method for holding taut a weft thread and a loom for carrying out said method
JP2004509150A JP2005528535A (ja) 2002-05-31 2003-05-06 よこ糸の伸長のための方法及び当該方法の実施のための織機

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10224078.7 2002-05-31
DE10224078A DE10224078A1 (de) 2002-05-31 2002-05-31 Verfahren zum Gestreckthalten eines Schussfadens und Webmaschine zur Verfahrensdurchführung

Publications (1)

Publication Number Publication Date
WO2003102282A1 true WO2003102282A1 (fr) 2003-12-11

Family

ID=29557411

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/001434 Ceased WO2003102282A1 (fr) 2002-05-31 2003-05-06 Procede permettant de maintenir un fil de trame tendu et machine a tisser permettant d'executer ce procede

Country Status (8)

Country Link
US (1) US20050236062A1 (fr)
EP (1) EP1509645A1 (fr)
JP (1) JP2005528535A (fr)
CN (1) CN1668796A (fr)
BR (1) BR0304920A (fr)
DE (1) DE10224078A1 (fr)
RU (1) RU2004138791A (fr)
WO (1) WO2003102282A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108330597A (zh) * 2018-01-22 2018-07-27 江苏唐宁服饰有限公司 一种喷气织机上的辅助主喷
CN108330598A (zh) * 2018-01-22 2018-07-27 江苏唐宁服饰有限公司 一种喷气织机上的主喷嘴
JP7776255B2 (ja) * 2020-07-07 2025-11-26 株式会社豊田自動織機 緯糸張力付与装置
DE102021205865B3 (de) 2021-06-10 2022-03-17 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Verfahren zum eintragen und rückholen eines schussfadens an einer webmaschine, vorspulgerät für eine webmaschine sowie webmaschine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273473A1 (fr) * 1986-12-02 1988-07-06 Picanol N.V. Injecteur principal avec force de tension augmentée pour métiers à tisser à jet d'air
US4756342A (en) * 1985-12-13 1988-07-12 Picanol N.V. Device for supplying multiple weft threads to a main blower of a fluid jet weaving loom
EP0297040A1 (fr) * 1987-06-25 1988-12-28 GebràœDer Sulzer Aktiengesellschaft Procédé pour l'insertion de trame dans un métier pneumatique multicouleurs et métier pour l'exécution de ce procédé
DE3739351C1 (en) * 1987-11-20 1989-02-02 Dornier Gmbh Lindauer Air nozzle for weft-thread insertion in pneumatic weaving machines
EP0354300A2 (fr) * 1988-08-06 1990-02-14 Nissan Texsys Co., Ltd. Système et méthode pour le traitement de la trame dans un métier à jet de fluide
EP0406128A1 (fr) * 1989-06-26 1991-01-02 S.A. Saurer Diederichs Dispositif d'alimentation en fil de trame pour machine à tisser avec insertion pneumatique

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1817799U (de) * 1960-07-05 1960-09-01 Walter Scheffel Webstuhl mit pneumatischer schusseintragung.
NL8004551A (nl) * 1980-08-11 1982-03-01 Rueti Te Strake Bv Werkwijze voor het inbrengen en strekken van een afgemeten inslagdraadstuk in het weefvak van een spoelloze weefmachine.
BR8108872A (pt) * 1980-11-17 1982-10-13 Rueti Te Strake Bv Um processo para transportar um fio flexivel por intermedio de um gas sob pressao
CH649322A5 (de) * 1981-01-13 1985-05-15 Rueti Te Strake Bv Duesenwebmaschine.
CS247783B1 (en) * 1984-08-23 1987-01-15 Miroslav Hrus Nozzle for weft threads' carrying on jet looms
DE3818766A1 (de) * 1988-06-02 1989-12-07 Dornier Gmbh Lindauer Duesensteuerung fuer einen luftwebstuhl
DE4012616A1 (de) * 1990-04-20 1991-10-24 Dornier Gmbh Lindauer Verfahren zur steuerung des schussfadeneintrages an luftduesenwebmaschinen
DE4131474C2 (de) * 1991-09-21 1995-01-05 Dornier Gmbh Lindauer Verfahren zum Schußfadeneintrag auf einer Luftdüsenwebmaschine
US5282779A (en) * 1991-12-09 1994-02-01 Mitsubishi Rayon Company Ltd. Air jet for producing filter plug for cigarette
DE4209686C2 (de) * 1992-03-25 1995-02-02 Dornier Gmbh Lindauer Verfahren und Vorrichtung zur Herstellung von insbesondere knotenfreien Gewebe auf Luftdüsenwebmaschinen
IT1266636B1 (it) * 1993-10-27 1997-01-09 Nuovo Pignone Spa Ugello principale perfezionato per telaio tessile ad aria
DE19511439C1 (de) * 1995-03-29 1996-03-14 Dornier Gmbh Lindauer Verfahren zur Leistungssteigerung beim Schußfadeneintrag in ein Webfach einer Luftdüsenwebmaschine und Eintragsdüse zur Durchführung des Verfahrens
DE19521100C1 (de) * 1995-06-09 1996-07-11 Dornier Gmbh Lindauer Kontrollierte Absaugung an Webmaschinen
JP4057124B2 (ja) * 1998-01-20 2008-03-05 株式会社豊田自動織機 ジェットルームにおける緯糸把持装置
US6076563A (en) * 1998-03-09 2000-06-20 Lindauer Dornier Gesellschaft Mbh Weft stretching and detecting apparatus for a jet weaving loom
DE19833079C2 (de) * 1998-07-23 2001-03-15 Dornier Gmbh Lindauer Verfahren zum Beheben eines Schußfehlers auf Luftdüsenwebmaschinen mit pneumatischen Einlegern
DE19943609C1 (de) * 1999-09-11 2000-12-14 Dornier Gmbh Lindauer Vorspulgerät für Luftdüsenwebmaschinen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4756342A (en) * 1985-12-13 1988-07-12 Picanol N.V. Device for supplying multiple weft threads to a main blower of a fluid jet weaving loom
EP0273473A1 (fr) * 1986-12-02 1988-07-06 Picanol N.V. Injecteur principal avec force de tension augmentée pour métiers à tisser à jet d'air
EP0297040A1 (fr) * 1987-06-25 1988-12-28 GebràœDer Sulzer Aktiengesellschaft Procédé pour l'insertion de trame dans un métier pneumatique multicouleurs et métier pour l'exécution de ce procédé
DE3739351C1 (en) * 1987-11-20 1989-02-02 Dornier Gmbh Lindauer Air nozzle for weft-thread insertion in pneumatic weaving machines
EP0354300A2 (fr) * 1988-08-06 1990-02-14 Nissan Texsys Co., Ltd. Système et méthode pour le traitement de la trame dans un métier à jet de fluide
EP0406128A1 (fr) * 1989-06-26 1991-01-02 S.A. Saurer Diederichs Dispositif d'alimentation en fil de trame pour machine à tisser avec insertion pneumatique

Also Published As

Publication number Publication date
US20050236062A1 (en) 2005-10-27
EP1509645A1 (fr) 2005-03-02
RU2004138791A (ru) 2005-05-27
CN1668796A (zh) 2005-09-14
BR0304920A (pt) 2004-09-28
JP2005528535A (ja) 2005-09-22
DE10224078A1 (de) 2003-12-18

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