EP0931865B1 - Dispositif de tension et de détection de la trame pour métiers à tisser à tuyères, en particulier avec insertion pneumatique de la trame - Google Patents

Dispositif de tension et de détection de la trame pour métiers à tisser à tuyères, en particulier avec insertion pneumatique de la trame Download PDF

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Publication number
EP0931865B1
EP0931865B1 EP98124097A EP98124097A EP0931865B1 EP 0931865 B1 EP0931865 B1 EP 0931865B1 EP 98124097 A EP98124097 A EP 98124097A EP 98124097 A EP98124097 A EP 98124097A EP 0931865 B1 EP0931865 B1 EP 0931865B1
Authority
EP
European Patent Office
Prior art keywords
channel
weft
detection
receiver
channels
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
EP98124097A
Other languages
German (de)
English (en)
Other versions
EP0931865A1 (fr
Inventor
Hans-Dieter Scorl
Ralf Köhnen
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
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Lindauer Dornier GmbH
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Filing date
Publication date
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0931865A1 publication Critical patent/EP0931865A1/fr
Application granted granted Critical
Publication of EP0931865B1 publication Critical patent/EP0931865B1/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
    • D03D47/28—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
    • D03D47/3073—Detection means therefor
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/34—Weft stop motions

Definitions

  • the invention relates to a weft stretching and detection device for Jet looms, especially with pneumatic weft insertion, according to the Preamble of claim 1.
  • a weft stretching device which is arranged at the exit of a reed and which, like the reed itself, is connected to the sley of a weaving machine with a pneumatic weft insertion.
  • the device has a weft input area which has a thread guide channel lying in a first arrangement level downstream in the weft insertion direction. Provisions are made in the entrance area of the stretching device for stretching the weft thread, specifically in the manner of two opposing openings of a first and a second flow channel, the air flow from the first flow channel to the second flow channel crossing the thread guide channel lying in the first arrangement level.
  • the second flow channel forms a second thread guide channel in the stretching device in a second arrangement level.
  • Corresponding weft thread detection devices for recognizing long wefts or weft blows are not shown here; However, the arrangement of one detection device per thread guide channel is a matter of course for the person skilled in the art.
  • a device for stretching a registered weft thread, in particular for one Air jet weaving machine is known from WO 97/13017; the one disclosed herein However, the device is not according to the features according to the preamble of the claim 1 trained.
  • the object of the invention is to provide a weft stretching and detection device with two in to form thread guide channels ending in different arrangement levels in such a way that both thread guide channels are monitored simultaneously with less effort can.
  • a detection device for detecting a weft thread in the form of a long weft or a weft burst is provided together for both thread guide channels, the detection device preferably consisting of opto-electrical means and the opto-electrical means essentially in the output-side structure of the Base body corresponding carrier are arranged.
  • the detection device consists of a radiation transmitter or receiver arranged in the first arrangement level, of a radiation receiver or transmitter arranged accordingly in the second arrangement level and of a radiation transmission means bridging the distance between the radiation transmitter and the radiation receiver.
  • the weft stretching and detection device designed as a separate component 1 is arranged at the end of the reed 2 of an air jet weaving machine on the weft exit side.
  • the reed 2 forms a weft insertion channel 2a for the insertion process of the weft 3.
  • the process of inserting the weft thread into the entry channel 2a and thus into the shed (not shown) and the technical means used for this purpose are known, so that further explanations are not required for this.
  • first weft detection device 4 integrated in the weft exit side end region of the reed 2 is in a known manner. This is of an opto-electronic type.
  • the first detection device 4 is connected to the weaving machine control 5 via signal lines 4a, 4b.
  • the detection device 4 is used here to monitor whether the inserted weft thread 3 has reached its desired length and is not too short. If there is a so-called short weft, ie the weft thread 3 has not reached the first detection device 4 in a predetermined period of time, then the weaving process of the weaving machine is interrupted. In the weft direction "A" immediately after the reed 2 on the sley carrying the reed 2 (not shown), the detection device designed with the features according to the invention is arranged in component 1.
  • the component 1 here consists of a base body 6, which in a first arrangement plane 7 has a thread guide channel 8, which is preferably identical to the weft insertion channel 2a. Provisions for stretching the weft thread 3 are provided in the weft thread-side input area of the base body 6. These precautions consist of an air guide channel 9 present in the base body 6 below the arrangement level 7 of the thread guide channel 8, which opens approximately at right angles into the thread guide channel 8, and an air guide channel 10, the input 10a of which lies above the arrangement level 7 of the thread guide channel 8, namely the mouth 9a across from.
  • a weft thread detection device 13 is arranged on the output side of the thread guide channels 8, 12; which is mounted in the base body 6 via the symbolically represented connecting means 14.
  • the detection device 13 consists of a carrier 13a, in which the radiation transmitter 13b, the radiation receiver 13c and the radiation transmission means 13d are received.
  • the carrier 13a has a detection channel 17 and 18 in a first arrangement level 15 and in a second arrangement level 16.
  • the arrangement levels 15, 16 of the detection channels 17, 18 are identical to the position of the arrangement levels 7, 11 of the thread guide channels 8, 12. It is essential to the invention that a detection device is not provided for each thread guide channel 8, 12, as is known per se, but that both thread guide channels 8, 12 are monitored by a single detection device 13.
  • a first embodiment of the detection device 13 according to the invention is best shown in FIG. 2.
  • the carrier 13a forms a detection channel 17 in the first arrangement level 15 and a detection channel 18 in the second arrangement level 16.
  • a radiation transmitter 13b or a radiation receiver 13c is arranged peripherally in such a way that a shot burst is recognized by interrupting the beam emitted by the radiation transmitter 13b after the radiation receiver 13c.
  • the carrier 13a has an intermediate piece 13e between the two channels 17, 18.
  • the radiation transmission means 13d is received, which according to. 2 is a light guide.
  • the radiation transmitter 13b is a light beam transmitter which is connected to the weaving machine control 5 via a signal line 13b '.
  • the radiation receiver 13c is a light beam receiver which is also connected to the weaving machine control system via a signal line 13c '.
  • FIG. 3 shows a second embodiment of the detection device 13 according to the invention.
  • a single radiation transmitter 13b is arranged in the intermediate piece 13e in each case a radiation receiver arranged peripherally in the detection channels 17, 18 13c rays emitted.
  • FIG. 4 shows a third embodiment of the detection device 13 according to the invention.
  • a single radiation receiver 13c is arranged in the intermediate piece 13e of a respective radiation transmitter arranged peripherally in the detection channels 17, 18 13b receives the emitted beam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Claims (9)

  1. Dispositif de tension et de détection de la trame pour métiers à tisser à tuyères, en particulier avec insertion pneumatique de la trame, comprenant un corps de base (6) dans lequel un conduit de guidage du fil (8, 12) est prévu dans un premier et dans un deuxième plan d'implantation (7, 11) en aval dans le sens d'insertion de la trame A, moyennant quoi un entraxe défini x existe entre la sortie d'un conduit de guidage du fil (8) et la sortie de l'autre conduit de guidage du fil (12) et moyennant quoi le dispositif de détection (13) est installé du côté de la sortie des conduits de guidage du fil, caractérisé en ce qu'un dispositif de détection (13) commun est attribué aux deux conduits de guidage du fil (8, 12), en ce que le dispositif de détection (13) comporte de préférence des moyens opto-électriques qui sont disposés dans un support (13a) essentiellement adapté à la structure côté sortie du corps de base (6) et en ce que le dispositif de détection (13) comprend un émetteur de rayons (13b), un récepteur de rayons (13c) et au moins un moyen de transmission des rayons (13d) disposé entre l'émetteur de rayons et le récepteur de rayons.
  2. Dispositif selon la revendication 1, caractérisé en ce que le support (13a) est pourvu d'un conduit de détection (17 ; 18) dans un premier et dans un deuxième plan d'implantation (15, 16).
  3. Dispositif selon la revendication 2, caractérisé en ce que les plans d'implantation (15, 16) des conduits de détection (17; 18) sont identiques aux plans d'implantation (7, 11) des conduits de guidage du fil (8, 12).
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce que la section des conduits de guidage du fil (8, 12) et celle des conduits de détection (17, 18) sont de forme et de taille essentiellement identiques.
  5. Dispositif selon la revendication 1, caractérisé en ce que le moyen de transmission des rayons (13d) est logé dans une pièce intermédiaire (13e) du support (13a) placé entre les conduits de détection (17, 18).
  6. Dispositif selon les revendications 1 à 5, caractérisé en ce que l'émetteur de rayons (13b) ou le récepteur de rayons (13c) est installé au choix dans le premier ou dans le deuxième conduit de détection (17, 18) de manière périphérique pour pouvoir interrompre un flux de rayons présent entre l'émetteur de rayons (13b) et le récepteur de rayons (13c).
  7. Dispositif selon la revendication 1, caractérisé en ce qu'un seul émetteur de rayons (13b) est installé dans la pièce intermédiaire (13e), entre lequel et le récepteur de rayons (13c) disposé de manière périphérique dans les conduits de détection (17, 18) se produit un flux de rayons.
  8. Dispositif selon la revendication 1, caractérisé en ce qu'un seul récepteur de rayons (13c) est installé dans la pièce intermédiaire (13e), entre lequel et l'émetteur de rayons (13b) disposé de manière périphérique dans les conduits de détection (17, 18) se produit un flux de rayons.
  9. Dispositif selon la revendication 1, caractérisé en ce qu'un conduit de passage s'étendant verticalement est prévu dans la pièce intermédiaire (13e) qui permet le flux de rayons entre l'émetteur de rayons (13b) disposé de manière périphérique dans les conduits de détection (17, 18) et le récepteur de rayons (13c).
EP98124097A 1998-01-22 1998-12-18 Dispositif de tension et de détection de la trame pour métiers à tisser à tuyères, en particulier avec insertion pneumatique de la trame Expired - Lifetime EP0931865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19802254 1998-01-22
DE19802254A DE19802254C1 (de) 1998-01-22 1998-01-22 Schußfadenstreck- und -detektiereinrichtung für Düsenwebmaschinen, insbesondere mit pneumatischem Schußeintrag

Publications (2)

Publication Number Publication Date
EP0931865A1 EP0931865A1 (fr) 1999-07-28
EP0931865B1 true EP0931865B1 (fr) 2002-10-02

Family

ID=7855302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98124097A Expired - Lifetime EP0931865B1 (fr) 1998-01-22 1998-12-18 Dispositif de tension et de détection de la trame pour métiers à tisser à tuyères, en particulier avec insertion pneumatique de la trame

Country Status (7)

Country Link
US (1) US6082413A (fr)
EP (1) EP0931865B1 (fr)
JP (1) JP2992032B1 (fr)
AT (1) ATE225420T1 (fr)
DE (2) DE19802254C1 (fr)
ES (1) ES2185106T3 (fr)
PT (1) PT931865E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017100553U1 (de) 2017-02-02 2017-02-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Schussfadenstreck- und detektiervorrichtung für Düsenwebmaschinen

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000328399A (ja) * 1999-05-19 2000-11-28 Tsudakoma Corp 緯糸先端の処理方法および処理装置
DE10115172C1 (de) 2001-06-08 2002-12-19 Dornier Gmbh Lindauer Verfahren zum Überwachen des Schussfadeneintrags in Luftdüsenwebmaschinen und Vorrichtung zum Durchführen des Verfahrens
DE50300789D1 (de) * 2002-04-26 2005-08-25 Sultex Ag Rueti Fang- und Haltevorrichtung für das fangseitige Schussfadenende in einer Webmaschine
EP1508633B1 (fr) * 2003-08-15 2008-10-29 Sultex AG Métier à tisser à jet
DE102005022955A1 (de) 2005-05-19 2006-11-23 Lindauer Dornier Gmbh Verfahren und Vorrichtung zum Halten eines nach einem Startvorgang einer Webmaschine, insbesondere Luftdüsenwebmaschine eingetragenen Schussfadens
CN103924364B (zh) * 2014-05-12 2015-12-16 江苏瓯堡纺织染整有限公司 断纱停机系统

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1005230A3 (nl) * 1991-01-04 1993-06-01 Picanol Nv Inrichting voor het strekken van een inslagdraad bij weefmachines.
IT1272667B (it) * 1993-09-23 1997-06-26 Somet Soc Mec Tessile Tenditrama pneumatico di sicurezza per talei ad aria, con controllo delle trame rotte.
DE4443371C1 (de) * 1994-12-06 1996-01-18 Dornier Gmbh Lindauer Schußfadenstreck- und Detektiereinrichtung für Düsenwebmaschinen
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017100553U1 (de) 2017-02-02 2017-02-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Schussfadenstreck- und detektiervorrichtung für Düsenwebmaschinen

Also Published As

Publication number Publication date
JP2992032B1 (ja) 1999-12-20
EP0931865A1 (fr) 1999-07-28
US6082413A (en) 2000-07-04
JP2000265342A (ja) 2000-09-26
PT931865E (pt) 2003-01-31
ES2185106T3 (es) 2003-04-16
DE19802254C1 (de) 1999-08-05
DE59805785D1 (de) 2002-11-07
ATE225420T1 (de) 2002-10-15

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