EP1264921B1 - Dispositif de retenue des extrémités de fils de trâme dans un métier à tisser à jet d'air - Google Patents

Dispositif de retenue des extrémités de fils de trâme dans un métier à tisser à jet d'air Download PDF

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Publication number
EP1264921B1
EP1264921B1 EP02009621A EP02009621A EP1264921B1 EP 1264921 B1 EP1264921 B1 EP 1264921B1 EP 02009621 A EP02009621 A EP 02009621A EP 02009621 A EP02009621 A EP 02009621A EP 1264921 B1 EP1264921 B1 EP 1264921B1
Authority
EP
European Patent Office
Prior art keywords
weft
air jet
weft thread
weaving loom
flow channel
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
EP02009621A
Other languages
German (de)
English (en)
Other versions
EP1264921A3 (fr
EP1264921A2 (fr
Inventor
Andreas Weixler
Bernd Vögeli
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 EP1264921A2 publication Critical patent/EP1264921A2/fr
Publication of EP1264921A3 publication Critical patent/EP1264921A3/fr
Application granted granted Critical
Publication of EP1264921B1 publication Critical patent/EP1264921B1/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
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/308—Stretching or holding the weft
    • 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

Definitions

  • the invention relates to a holding device for the ends of weft threads in an air jet loom according to the preamble of claim 1.
  • a device for stretching a registered weft thread in particular for an air-jet loom, known.
  • the device is according to the features of US 6014990 A arranged on the reed of a weaving machine that connects a channel of the stretching device to the weft insertion channel of the reed.
  • the end of a registered weft thread is stretched by means of an air flow generated by a tuyere.
  • the previously entered weft thread end is automatically released when the weft thread length is preferably provided.
  • a disadvantage of this invention is that the free weft thread end can lead to unwanted looping and inclusions in the fabric edge after coming out of the stretching device.
  • air jet looms which additionally have a weft thread holding device in the form of a suction device in the region of the weft stretching device. After weft insertion, stretching and striking the weft threads to the stop edge of the fabric, the weft ends are detected by the suction device and held until the weft threads are firmly integrated into the fabric and at least one catch strip to be formed.
  • the object of the invention is therefore to provide a holding device for the ends of the weft threads arising on the side of a shed, which prevents free weft thread ends from leading to a reduction in the quality of the fabric, and that can be dispensed with a costly suction device.
  • the holding device consists of a base body arranged stationarily on an air jet, which has a flow channel which can be acted upon with compressed air, in which the ends of the weft threads emerging from the shed are introduced and temporarily held, and the base body is arranged on the shed side on the shed is that the flow channel is transverse to the stop edge of the fabric.
  • the holding device according to the invention has the advantage that only the already existing on the machine compressed air is needed for their operation.
  • the holding device improves the running properties of the weaving machine, since the secure holding of the weft ends after stretching in the weft stretching device avoids the formation of unwanted loops and knocks on the fabric edge.
  • Figure 1 shows the view of the holding device from the perspective of the registered and emerging from the weft insertion channel of a reed weft thread.
  • the holding device comprises an approximately cuboid base body 1 of predetermined dimensions with a lower part 2 and an upper part 3. Both parts are connected by a connecting means 4, e.g. a screw, held together.
  • the main body 1 is stationary, e.g. arranged on the bearing plate (not shown) for the fabric width of the loom.
  • the main body 1 has an opening 5, through which the weft thread to be introduced passes in the direction of the arrow 12 and enters the region of a weft thread stretching device, not shown, where it is first grasped and stretched. While the weft is held stretched, it is struck by a movement of the reed in the direction of arrow 13 at the stop edge of the fabric. In this case, the weft thread passes into a slot 6 of the holding device, which adjoins the opening 5.
  • a flow channel 7 is formed in the lower part 2 of the base body 1, below the slot 6, which opens downwards (arrow 14) and in the direction of the fabric withdrawal (arrow 13).
  • the flow channel 7 is acted upon in the direction of arrow 14 with a compressed air flow, which detects the ends of several weft threads, presses down in the direction of arrow 14 and thus keeps in the flow channel 7.
  • the compressed air required for this purpose passes via a arranged at the upper part 3 of the body 1 compressed air connection 8 in a distribution channel 9, where it is distributed to a plurality of nozzles 11 and blown from above into the flow channel.
  • the distribution channel 9 is closed at the end by a closure 10.

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

Claims (6)

  1. Métier mécanique à buses d'air pourvu d'un dispositif de maintien pour les extrémités de fils de trame, comprenant un corps de base (1) qui possède un canal hydraulique (7) pouvant être alimenté en air comprimé, dans lequel les extrémités côté sortie des fils de trame insérés dans un pas de chaîne sont introduites et maintenues temporairement, caractérisé en ce que
    le corps de base (1) est disposé de manière stationnaire sur le métier mécanique à buse d'air.
  2. Métier mécanique à buses d'air selon la revendication 1, caractérisé en ce que le corps de base (1) comporte une ouverture (5) à travers laquelle les fils de trame sont guidés lors de l'insertion dans le pas de chaîne, l'ouverture (5) se rétrécissant dans le sens d'éjection du tissu (13) jusqu'à former une fente (6) aux dimensions préalablement déterminées.
  3. Métier mécanique à buses d'air selon la revendication 1, caractérisé en ce que le corps de base (1) est composé de deux éléments (2, 3) reliés l'un à l'autre de manière amovible, le canal hydraulique (7) étant disposé dans l'un des éléments et des moyens de mise sous pression des extrémités de fils de trame dans l'autre élément.
  4. Métier mécanique à buses d'air selon la revendication 3, caractérisé en ce que les moyens sont composés d'un raccord d'air comprimé (8), d'un canal de distribution (9) et de plusieurs buses d'air (11) dirigées vers l'intérieur du canal hydraulique (7).
  5. Métier mécanique à buses d'air selon la revendication 1, caractérisé en ce que le canal hydraulique (7) est ouvert dans le sens du flux d'air comprimé (14) et dans le sens d'éjection du tissu (13).
  6. Métier mécanique à buses d'air selon les revendications 1 à 5, caractérisé en ce que le dispositif de maintien est disposé de manière stationnaire à un emplacement adéquat du métier mécanique entre un dispositif de détection du fil de trame relié au peigne de tissage et un dispositif d'extension du fil de trame relié au peigne de tissage.
EP02009621A 2001-05-10 2002-04-27 Dispositif de retenue des extrémités de fils de trâme dans un métier à tisser à jet d'air Expired - Lifetime EP1264921B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20107885U DE20107885U1 (de) 2001-05-10 2001-05-10 Halteeinrichtung für die Enden von Schussfäden bei einer Luftdüsenwebmaschine
DE20107885U 2001-05-10

Publications (3)

Publication Number Publication Date
EP1264921A2 EP1264921A2 (fr) 2002-12-11
EP1264921A3 EP1264921A3 (fr) 2003-09-17
EP1264921B1 true EP1264921B1 (fr) 2006-06-28

Family

ID=7956713

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009621A Expired - Lifetime EP1264921B1 (fr) 2001-05-10 2002-04-27 Dispositif de retenue des extrémités de fils de trâme dans un métier à tisser à jet d'air

Country Status (5)

Country Link
US (1) US6758246B2 (fr)
EP (1) EP1264921B1 (fr)
JP (1) JP2002371448A (fr)
AT (1) ATE331828T1 (fr)
DE (2) DE20107885U1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1016236A6 (nl) * 2004-03-05 2006-05-02 Picanol Nv Kanteninleginrichting voor een weefmachine.
EP1927691B1 (fr) * 2006-11-29 2010-02-17 ITEMA (Switzerland) Ltd. Dispositif et procédé de maintien de trame pour un métier à tisser à pince
DE102015217356B3 (de) * 2015-09-10 2016-10-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Webmaschine mit einer Vorrichtung sowie Verfahren zum Halten, Zubringen und Eintragen von Schussfäden in ein Webfach

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1942212U (de) 1966-03-03 1966-07-14 Miele & Cie Maschinenfabrik Vorrichtung zum aufbewahren von staubsaugerzubehoerteilen.
CH436155A (de) 1966-05-16 1967-05-15 Rueti Ag Maschf Einrichtung zum Sauberhalten einer Saugdüsenanordnung
NL6712677A (fr) 1967-09-15 1969-03-18
US3744533A (en) 1971-08-03 1973-07-10 Teijin Ltd Adjustment of filling tension in fluid jet loom and apparatus thereof
NL7211208A (fr) 1972-08-16 1974-02-19
AT317800B (de) 1972-09-15 1974-09-10 Voest Ag Vorrichtung zum Aufrechterhalten der Spannung des in das Fach eingetragenen Schußfadens
EP0342135A1 (fr) * 1988-05-10 1989-11-15 S.A. Saurer Diederichs Dispositif d'aspiration et de retenue du fil de trame, pour machine à tisser avec insertion de trame pneumatique
BE1005230A3 (nl) * 1991-01-04 1993-06-01 Picanol Nv Inrichting voor het strekken van een inslagdraad bij weefmachines.
US5224521A (en) * 1991-04-30 1993-07-06 Sulzer Brothers Limited Weft catcher with gripping device
DE4213754C1 (de) * 1992-04-25 1993-12-02 Dornier Gmbh Lindauer Einrichtung zum pneumatischen Führen turbulenter Schußfadenenden einer Hilfsgewebeleiste in Luftdüsenwebmaschinen
DE4311918A1 (de) * 1993-04-10 1994-10-13 Kloecker Entwicklungs Gmbh Eine dem Webblatt nachgeordnete Vorrichtung zum Bremsen eines mittels Luftstrom eingetragenen Schußfadens
BE1009619A6 (nl) * 1995-10-02 1997-06-03 Picanol Nv Strekinrichting voor weefmachines.
DE19545839C1 (de) * 1995-12-08 1996-08-29 Dornier Gmbh Lindauer Verfahren und Webmaschine zur Handhabung eines Schußfadens
DE19728013A1 (de) * 1997-07-01 1999-01-07 Textilma Ag Vorrichtung zum Strecken und Spannen eines Schussfadens und Webmaschine mit einer solchen Vorrichtung

Also Published As

Publication number Publication date
DE50207359D1 (de) 2006-08-10
ATE331828T1 (de) 2006-07-15
EP1264921A3 (fr) 2003-09-17
DE20107885U1 (de) 2001-10-11
US6758246B2 (en) 2004-07-06
US20020166599A1 (en) 2002-11-14
EP1264921A2 (fr) 2002-12-11
JP2002371448A (ja) 2002-12-26

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