EP1266985A1 - Procédé et dispositif pour surveiller l'insertion du fil de trame dans un métier à jet - Google Patents

Procédé et dispositif pour surveiller l'insertion du fil de trame dans un métier à jet Download PDF

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Publication number
EP1266985A1
EP1266985A1 EP02009620A EP02009620A EP1266985A1 EP 1266985 A1 EP1266985 A1 EP 1266985A1 EP 02009620 A EP02009620 A EP 02009620A EP 02009620 A EP02009620 A EP 02009620A EP 1266985 A1 EP1266985 A1 EP 1266985A1
Authority
EP
European Patent Office
Prior art keywords
weft
monitor
thread
predetermined length
weft monitor
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Withdrawn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
EP02009620A
Other languages
German (de)
English (en)
Inventor
Werner Birner
Herbert Reinhardt
Christian Hannes
Alexander Dr. Chvorak
Peter D. Dornier
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 EP1266985A1 publication Critical patent/EP1266985A1/fr
Withdrawn legal-status Critical Current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 method for monitoring the weft insertion in Air jet looms according to the features of the generic term of the independent Claims 1 and 4.
  • the invention further relates to a device for performing the method according to Claim 1 with the features of the preamble of claim 9 and a device for performing the method according to claim 4 with the features of the preamble of claim 12.
  • the task is essentially solved by the fact that in the respective level of Weft stretching and detection device available and for detecting a Weft thread breaker provided in the main body of the Device can be moved translationally. This advantageously avoids that an undesired excess length of one in the weft insertion channel of the weft inserted a missing weft break detected.
  • DE 195 45 839 C1 discloses a method and a weaving machine for Handling a weft.
  • the subject of DE 195 45 839 C1 is the Task based on the formation of catch strips in the fabric production with To avoid inserting edge on air jet looms.
  • the task is in essentially solved in that a device for suctioning the weft end section is provided, that of the weft end section to be inserted is cut off. For this is between the insertion device and a first Weft monitor and one arranged after the first weft monitor A suction device is provided for the weft stretching nozzle.
  • DE 198 02 254 C1 discloses a weft stretching and detection device for jet looms with two thread guide channels which end in different arrangement levels, the task of which is to minimize the expenditure on weft monitors.
  • the task is solved in that both thread guide channels are assigned a weft monitor to detect a long weft or a weft burst.
  • EP 0 493 847 A1 and EP 0 645 485 A1 for stretching and detecting one in the entry channel of the reed one Air jet weaving machine of registered weft.
  • the correct entry of the Weft thread is checked by a weft guard before the start of the Stretching process detected.
  • the object is characterized by the features of the independent Claims 1 and 4 solved.
  • the arrival of the free end of the predetermined length of a weft thread inserted, in a manner known per se, after its entry is signaled by a first weft thread monitor, is pneumatically directed from the plane of the weft thread insertion channel to another plane and in which another level, the presence or absence of the end of the predetermined length is detected by an additional weft monitor and, depending on the detection, the weaving process is interrupted or continued.
  • the arrival of the free end of the weft thread is therefore not detected by the additional weft thread monitor.
  • the missing detection leads to the interruption of the weaving process.
  • the free end of the predetermined length of the inserted weft thread is pneumatically steered in a manner known per se from the plane of the weft thread entry into another plane and in the other plane the presence or absence of the end of the predetermined length from a first Weft monitor is detected.
  • the weaving process is interrupted according to the feature of claim 6.
  • the weaving process is not interrupted if the free end of the weft reaches the first weft monitor and there is no weft break.
  • the device for carrying out the method according to claim 1 consists of a first weft monitor 3 arranged on the output side in the plane of the weft insertion channel 2 of the reed 1 of an air jet weaving machine, not shown.
  • a so-called auxiliary reed 1a adjoins the weft thread monitor 3 to form a so-called catch bar 8a.
  • the auxiliary reed 1a is followed by a weft detection device 6, which establishes a connection deflecting the weft by means of a weft stretching channel 11 to a second weft monitor 4, as is known per se from DE 198 02 254 C1.
  • the purpose of the at least one weft monitor 4.5 is disclosed in the previously known document, so that further explanations are not required.
  • a second or additional weft monitor 10 is arranged downstream of the weft extension device 6. This rearrangement can take place in the case that the free end of the weft thread is stretched, in a level different from the insertion level of the weft thread, or in the case that the free end of the weft thread is stretched in the insertion level, in the insertion level itself. If there is no loop 9, the free end 7a of the weft thread 7 reaches the thread monitor 10, which triggers a signal to continue the weaving process.
  • FIG. 2 shows that the free end 7a of the inserted weft thread 7 passes through the weft monitor 3 was detected, but one at the end of the weft 7 trained sling has not been recognized. Further weft entries were made a defective tissue, as indicated in Figures 2 and 5, arises.
  • the weft monitor 10 has recognized that the free end 7a of the Weft 7 is designed as a loop.
  • the weaving process is interrupted; Further Weft entries were not made until the error was corrected.
  • FIG. 4 shows an alternative solution to the solution disclosed in FIG. 1.
  • the first weft thread monitor 3, which according to the invention is arranged between the weft thread stretching device 6 and the weft thread monitor 4, determines whether the weft thread itself has been correctly inserted by the free end 7a of the weft thread 7 reaching or not reaching the weft thread monitor 3 during the stretching process. Failure to reach is an indication of the presence of a loop 9, as shown in FIG. 6; the weaving process is interrupted.
  • FIGS. 7 and 8 show possible configurations of the weft monitor 3.4, and 10 shown.
  • the weft monitor according to Figure 7 a U-shaped shape 8
  • the weft monitor is ring-shaped, with the advantage the low pollution caused by fiber flying.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP02009620A 2001-06-08 2002-04-27 Procédé et dispositif pour surveiller l'insertion du fil de trame dans un métier à jet Withdrawn EP1266985A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10115172A DE10115172C1 (de) 2001-06-08 2001-06-08 Verfahren zum Überwachen des Schussfadeneintrags in Luftdüsenwebmaschinen und Vorrichtung zum Durchführen des Verfahrens
DE10115172 2001-06-08

Publications (1)

Publication Number Publication Date
EP1266985A1 true EP1266985A1 (fr) 2002-12-18

Family

ID=7679308

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009620A Withdrawn EP1266985A1 (fr) 2001-06-08 2002-04-27 Procédé et dispositif pour surveiller l'insertion du fil de trame dans un métier à jet

Country Status (4)

Country Link
US (1) US6834683B2 (fr)
EP (1) EP1266985A1 (fr)
JP (1) JP2003027354A (fr)
DE (1) DE10115172C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104822869A (zh) * 2012-10-01 2015-08-05 必佳乐公司 用于监控纬纱的装置和方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1508633B1 (fr) * 2003-08-15 2008-10-29 Sultex AG Métier à tisser à jet
BE1016236A6 (nl) * 2004-03-05 2006-05-02 Picanol Nv Kanteninleginrichting voor een weefmachine.
CN101974822B (zh) * 2010-10-11 2012-03-28 江阴市祥德纺织有限公司 喷气织机纬纱辅助防纬缩装置
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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527598A (en) * 1982-11-08 1985-07-09 Sulzer Brothers Limited Control apparatus for a weaving machine
DE4443371C1 (de) * 1994-12-06 1996-01-18 Dornier Gmbh Lindauer Schußfadenstreck- und Detektiereinrichtung für Düsenwebmaschinen
US5735316A (en) * 1995-12-08 1998-04-07 Lindauer Dornier Gesellschaft Mbh Air weaving loom including a leading end weft stretcher and method for inserting a weft thread into a weft insertion channel of the loom

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4962794A (en) * 1988-10-28 1990-10-16 Milliken Research Corporation Air jet loom with integral stretch pipe and pick sensor
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.
DE19802254C1 (de) 1998-01-22 1999-08-05 Dornier Gmbh Lindauer Schußfadenstreck- und -detektiereinrichtung für Düsenwebmaschinen, insbesondere mit pneumatischem Schußeintrag
US6076563A (en) * 1998-03-09 2000-06-20 Lindauer Dornier Gesellschaft Mbh Weft stretching and detecting apparatus for a jet weaving loom

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4527598A (en) * 1982-11-08 1985-07-09 Sulzer Brothers Limited Control apparatus for a weaving machine
DE4443371C1 (de) * 1994-12-06 1996-01-18 Dornier Gmbh Lindauer Schußfadenstreck- und Detektiereinrichtung für Düsenwebmaschinen
US5735316A (en) * 1995-12-08 1998-04-07 Lindauer Dornier Gesellschaft Mbh Air weaving loom including a leading end weft stretcher and method for inserting a weft thread into a weft insertion channel of the loom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104822869A (zh) * 2012-10-01 2015-08-05 必佳乐公司 用于监控纬纱的装置和方法
CN104822869B (zh) * 2012-10-01 2016-09-14 必佳乐公司 用于监控纬纱的装置和方法

Also Published As

Publication number Publication date
US20030000594A1 (en) 2003-01-02
JP2003027354A (ja) 2003-01-29
DE10115172C1 (de) 2002-12-19
US6834683B2 (en) 2004-12-28

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