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EP0716171B1 - Dispositif de tension et de détection de la trame pour métiers à tisser à jet d'air - Google Patents

Dispositif de tension et de détection de la trame pour métiers à tisser à jet d'air Download PDF

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Publication number
EP0716171B1
EP0716171B1 EP95118267A EP95118267A EP0716171B1 EP 0716171 B1 EP0716171 B1 EP 0716171B1 EP 95118267 A EP95118267 A EP 95118267A EP 95118267 A EP95118267 A EP 95118267A EP 0716171 B1 EP0716171 B1 EP 0716171B1
Authority
EP
European Patent Office
Prior art keywords
weft
thread
thread guide
guide channel
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
EP95118267A
Other languages
German (de)
English (en)
Other versions
EP0716171A2 (fr
EP0716171A3 (fr
Inventor
Adnan Dr. Wahhoud
Valentin Krumm
Hans-Dieter Dr. Scorl
Ulrich Löhr
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 EP0716171A2 publication Critical patent/EP0716171A2/fr
Publication of EP0716171A3 publication Critical patent/EP0716171A3/fr
Application granted granted Critical
Publication of EP0716171B1 publication Critical patent/EP0716171B1/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, one in the area of the weft arrival side of a Webblattes integrated first weft guard can be subordinated.
  • From DE-PS 32 00 637 C2 is such a weft tension and Detection device for jet looms known.
  • This facility is also a first weft guard, which in the area of Weft arrival side of the reed is integrated in the reed, subordinate.
  • the known tensioning device for stretching and holding the inserted weft thread is provided with an element acting transversely to the weft direction, which deflects the head part of the inserted weft thread protruding from the shed with respect to the weft direction by means of an auxiliary air flow.
  • a second weft monitor is integrated in a thread guide part above the tensioning device. This thread monitor sends a signal to the weaving machine control when the weft thread exceeds its desired length by a predetermined amount, as is the case with a weft burst, for example.
  • the distance between the second weft guard and the Tensioning device should be chosen so large that even such a briefly stretched weft thread does not reach the second weft monitor.
  • the known weft tensioning and detection device is of hers Construction not suitable to detect a weft break in weft threads that should not be stretched by a thread deflecting device, e.g. at a portion of wefts may be used to manufacture certain fabrics.
  • a weft stretching and detection device which is arranged at the outlet of a reed and how the reed itself is connected to the sley of a weaving machine.
  • the device has a weft thread input area, which has a thread guide channel lying in a first arrangement level downstream in the weft insertion direction.
  • provisions are made for stretching the weft 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 bridging the thread guide channel located in the first arrangement level.
  • the second flow channel merges into a second arrangement level and here forms a second thread guide channel.
  • Corresponding weft monitors, which are connected to the two thread guide channels, are not shown; however, the arrangement of second weft monitors is a matter of course for a person skilled in the art.
  • the object of the invention is to provide a device according to the preamble of claim 1 like that train that one from the longitudinal stretching behavior of the weft short-term resulting during its movement through the entry channel Excess length is not erroneously detected as a shot break and a Loom stop caused.
  • the weft stretching and detection device designed as a separate component 1 is gem.
  • Fig. 1 connected to the weft exit end of the reed 2 of a jet loom.
  • the reed 2 consists of a lower and an upper frame rail 3, 4, in which the ends of the reed teeth 5 are bordered.
  • the leaf teeth 5 form a recess 6.
  • Said recess 6 of all leaf teeth 5 forms an open entry channel 6 for the weft thread 7 that extends over the weaving width.
  • the weft thread entry in the entry channel 6 and thus in the shed, not shown, and the means used for this purpose are known, so that further explanations are not required for this.
  • a first weft monitor 8 integrated in the weft direction A is in a known manner. This is of optoelectronic Kind; its shape is adapted to that of the reed teeth 5.
  • the first weft monitor 8 is used to monitor whether the registered Weft 7 has reached its desired length and is not too short. Lies a so-called short shot before, the thread 7 does not pass the first Weft monitor 8, then the weft monitor 8 gives a signal to the shown weaving machine control, by which the weaving machine is switched off becomes.
  • the reed 2 is immediately after the reed 2 supporting sley (not shown) with the features of the invention trained device arranged as component 1.
  • the base body 9 there is a weft input area 10 - shown partly in section - with a weft guide channel 11 which forms the continuation of the weft insertion channel 6 in the reed 2.
  • the entrance area 10 forms a weft stretching device known per se.
  • the stretching device has a channel aligned with the weft insertion channel 6 in the reed 2, which is identical to the weft guide channel 11.
  • the lower boundary surface of the guide channel 11 in the entrance area 10 has an air outlet opening 12 and its upper boundary surface has an air inlet opening 13.
  • the two openings 12, 13 lie opposite one another.
  • openings form the outlet or inlet of air guide channels 14 and 15, the inlet and outlet 14a and 15a of which are provided with an air supply and discharge line 16 and 17, respectively, in such a way that the thread guide channel 11 is preferably transverse an auxiliary flow in the direction of arrow B can be generated to the weft direction A.
  • the head part of the weft thread 7 is directed from the weft direction A into the air duct 15, whereby the weft thread 7 is stretched and kept taut while maintaining the auxiliary flow.
  • a second thread duct 18 which lies in a second arrangement plane, which preferably runs parallel to the arrangement plane of a first thread duct 11.
  • a second weft monitor 19 or 20 is arranged at the end region of the relevant thread guide channel 11, 18 with respect to the aforementioned first weft monitor 8.
  • the second weft monitors 19 and 20 are translationally adjustable in their respective arrangement level. The longitudinal stretching behavior of the weft threads 7 can thus be taken into account when there is no machine shutdown due to this longitudinal stretching behavior.
  • the translational adjustability of the weft monitor 19 or 20 can be realized in different ways. For example, about corresponding Recesses 24, 25 in the base body 9 by connecting elements 26 Weft monitor 19, 20, the relevant support 21 and the corresponding Intermediate pieces 22, 23 (see also FIG. 3) with the frame-like base body 9 get connected.
  • At least the thread guide channel 18 can be designed as a telescopic tube, while the thread guide channel 11 is designed in the manner of the reed channel and is an integral part of the base body 9. Is the thread guide channel 11 in the manner of the reed channel 6, it is necessary when changing the position of the second weft monitor 19 between the constant length "l" of the thread guide channel 11 (see also Fig. 3) at least one corresponding intermediate piece 22 or 23 to provide none To receive impairments of the thread flight within the device 1.
  • the free end of the thread guide channel 18 is in one Recording 21a connected to the support 21.
  • the support 21 is in the Exemplary embodiment by connecting elements 26 via the receptacles 24, 25 in the base body 9 connected to it.
  • the recesses 24, 25 are over the Length of the translational adjustment path of the thread monitors 19, 20 arranged.
  • Fig. 2 shows in the gem.
  • the reference signals 19a and 20a indicate the electrical signal lines to the thread monitors 19, 20.
  • the device 1 is designed as a detection device for the weft thread 7, that is to say without a drawing device.
  • the weft thread monitor 19 In order to do justice to the longitudinal stretching behavior of certain weft threads that do not pass a weft thread stretching device with regard to the correct positioning of the weft thread monitor, provision is made for the weft thread monitor 19 to be positioned on the base body 9 over the length “l” of the thread guide channel 11.
  • at least one intermediate piece 22 or 23 with a thread guide channel 22a or 23a is provided between the free end of the thread guide channel 11 and the entrance 19b of the thread monitor 19 .
  • the thread guide channel 22a or 23a is designed identically to the thread guide channel 11.

Landscapes

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

Claims (5)

  1. Dispositif de mise sous tension et de détection du fil de trame pour des métiers à tisser à jet d'air, constitué d'un corps de base (9) présentant une zone (10) d'arrivée du fil de trame, dans lequel le corps de base (9) possède, en aval, selon le sens (A) de passage du fil de trame, un canal (11) de guidage du fil situé dans un premier plan de disposition et zone d'arrivée (10) qui forme un dispositif, connu en soi, de mise sous tension du fil de trame avec un premier et un second canaux d'écoulement (14, 15) dont le flux d'air franchit le canal (11) de guidage du fil, de préférence perpendiculairement à la direction (A) de passage du fil de trame et dans lequel est relié au second canal d'écoulement (15) un second (18) canal de guidage du fil situé dans un second plan de disposition, caractérisé par le fait qu'à chaque canal (11, 18) de guidage du fil est associé, au moins côté sortie, un détecteur (19 ou 20) du fil de trame et que, partant d'une première longueur, les canaux (11, 18) de guidage du fil sont de longueur modifiable et que les détecteurs (19, 20) du fil de trame sont disposés dans le corps de base (9) avec liberté de coulisser en translation.
  2. Dispositif selon la revendication 1, caractérisé par le fait qu'au moins le second canal (18) de guidage du fil peut être échangé contre des canaux de guidage du fil de longueur modifiée.
  3. Dispositif selon la revendication 1, caractérisé par le fait que la longueur du premier canal (11) de guidage du fil peut être modifiée au moyen de pièces intermédiaires (21) qui présentent un canal de guidage (21a) de forme identique au canal (11) de guidage du fil.
  4. Dispositif selon la revendication 1, caractérisé par le fait qu'au moins l'un des canaux de guidage (11, 18) est conçu télescopique.
  5. Dispositif selon la revendication 1, caractérisé par le fait que le second (18) canal de guidage du fil est conçu sous forme d'un tube télescopique tandis que le premier (11) canal de guidage du fil présente une forme identique au canal d'arrivée ou à l'évidement (6) prévu dans le peigne (2).
EP95118267A 1994-12-06 1995-11-21 Dispositif de tension et de détection de la trame pour métiers à tisser à jet d'air Expired - Lifetime EP0716171B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4443371 1994-12-06
DE4443371A DE4443371C1 (de) 1994-12-06 1994-12-06 Schußfadenstreck- und Detektiereinrichtung für Düsenwebmaschinen

Publications (3)

Publication Number Publication Date
EP0716171A2 EP0716171A2 (fr) 1996-06-12
EP0716171A3 EP0716171A3 (fr) 1996-07-31
EP0716171B1 true EP0716171B1 (fr) 2000-02-09

Family

ID=6535038

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95118267A Expired - Lifetime EP0716171B1 (fr) 1994-12-06 1995-11-21 Dispositif de tension et de détection de la trame pour métiers à tisser à jet d'air

Country Status (4)

Country Link
US (1) US5606998A (fr)
EP (1) EP0716171B1 (fr)
JP (1) JP2758579B2 (fr)
DE (2) DE4443371C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094283A (zh) * 2009-12-10 2011-06-15 津田驹工业株式会社 橡胶加强用织物编织用织机中的织入边形成装置

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1009619A6 (nl) * 1995-10-02 1997-06-03 Picanol Nv Strekinrichting voor weefmachines.
DE19728013A1 (de) 1997-07-01 1999-01-07 Textilma Ag Vorrichtung zum Strecken und Spannen eines Schussfadens und Webmaschine mit einer solchen Vorrichtung
DE19802254C1 (de) * 1998-01-22 1999-08-05 Dornier Gmbh Lindauer Schußfadenstreck- und -detektiereinrichtung für Düsenwebmaschinen, insbesondere mit pneumatischem Schußeintrag
DE19810129B4 (de) * 1998-03-09 2004-08-05 Lindauer Dornier Gmbh Schußfadenstreck- und -detektiereinrichtung für Düsenwebmaschinen
US6076563A (en) * 1998-03-09 2000-06-20 Lindauer Dornier Gesellschaft Mbh Weft stretching and detecting apparatus for a jet weaving loom
DE10115172C1 (de) * 2001-06-08 2002-12-19 Dornier Gmbh Lindauer Verfahren zum Überwachen des Schussfadeneintrags in Luftdüsenwebmaschinen und Vorrichtung zum Durchführen des Verfahrens
EP1508633B1 (fr) * 2003-08-15 2008-10-29 Sultex AG Métier à tisser à jet
US7748414B2 (en) * 2006-12-12 2010-07-06 Itema (Switzerland) Ltd Method and apparatus for the insertion of weft threads
DE202017100553U1 (de) 2017-02-02 2017-02-20 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Schussfadenstreck- und detektiervorrichtung für Düsenwebmaschinen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744533A (en) * 1971-08-03 1973-07-10 Teijin Ltd Adjustment of filling tension in fluid jet loom and apparatus thereof
NL7605882A (nl) * 1976-05-31 1977-12-02 Rueti Te Strake Bv Weefmachine.
CH649325A5 (de) * 1980-11-25 1985-05-15 Rueti Ag Maschf Schussfadenueberwachungseinrichtung an einer duesenwebmaschine.
CH649322A5 (de) * 1981-01-13 1985-05-15 Rueti Te Strake Bv Duesenwebmaschine.
FR2526053A1 (fr) * 1982-05-03 1983-11-04 Saurer Diederichs Sa Dispositif de reception et de controle de la trame, pour machine a tisser sans navette a insertion de trame pneumatique
DE3273230D1 (en) * 1982-11-08 1986-10-16 Sulzer Ag Weaving machine
US4962794A (en) * 1988-10-28 1990-10-16 Milliken Research Corporation Air jet loom with integral stretch pipe and pick sensor
CH682244A5 (en) * 1990-07-12 1993-08-13 Sulzer Ag Multicolour airjet loom - has logic circuit with weft detector to arrange length of weft on the barrel of the accumulator w.r.t. type of weft
BE1005230A3 (nl) * 1991-01-04 1993-06-01 Picanol Nv Inrichting voor het strekken van een inslagdraad bij weefmachines.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102094283A (zh) * 2009-12-10 2011-06-15 津田驹工业株式会社 橡胶加强用织物编织用织机中的织入边形成装置
CN102094283B (zh) * 2009-12-10 2013-12-25 津田驹工业株式会社 橡胶加强用织物编织用织机中的织入边形成装置

Also Published As

Publication number Publication date
JPH08209499A (ja) 1996-08-13
EP0716171A2 (fr) 1996-06-12
US5606998A (en) 1997-03-04
EP0716171A3 (fr) 1996-07-31
JP2758579B2 (ja) 1998-05-28
DE4443371C1 (de) 1996-01-18
DE59507778D1 (de) 2000-03-16

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