EP0557723B1 - Dispositif de guidage de bandes ou de lances d'insertion pour métiers à tisser - Google Patents

Dispositif de guidage de bandes ou de lances d'insertion pour métiers à tisser Download PDF

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Publication number
EP0557723B1
EP0557723B1 EP93101034A EP93101034A EP0557723B1 EP 0557723 B1 EP0557723 B1 EP 0557723B1 EP 93101034 A EP93101034 A EP 93101034A EP 93101034 A EP93101034 A EP 93101034A EP 0557723 B1 EP0557723 B1 EP 0557723B1
Authority
EP
European Patent Office
Prior art keywords
gripper
guide
shed
manner
lever
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
EP93101034A
Other languages
German (de)
English (en)
Other versions
EP0557723A1 (fr
Inventor
Stephan Dipl.-Ing. Arndt
Rainer Dipl.-Ing. Finger (Fh)
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
Priority claimed from DE4206212A external-priority patent/DE4206212A1/de
Priority claimed from DE4206213A external-priority patent/DE4206213A1/de
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0557723A1 publication Critical patent/EP0557723A1/fr
Application granted granted Critical
Publication of EP0557723B1 publication Critical patent/EP0557723B1/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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms
    • 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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers

Definitions

  • This type of gripper guide has the disadvantage that the guide teeth only dip under the warp threads relatively shortly before the blade stop. There is therefore a risk of irregularities, such as stripes, occurring at these points in the tissue. In addition, a large number of relatively closely spaced guide teeth are necessary to guide such a flexible belt gripper.
  • a gripper with a guide wood arranged on the reed side the task of which is to provide the gripper with a stabilizing guide on the reed during the weft insertion into the shed.
  • the gripper with guide wood glides along the reed during its alternating forward and backward movement.
  • the invention is based on the object of reducing the proportion of components which also carry out the oscillating movements of the sley.
  • the advantage is achieved that a perfect weft transfer without collision of the rapier is guaranteed in high-speed rapier weaving machines.
  • the solution according to the invention is not only provided for the gripper guidance in the area of the weft transfer; it can also be arranged over the entire width of the fabric. This means that it is possible that the grippers are guided up to the weft thread transfer before the entry, but in particular with the entry into the shed, and that the guide levers are pivoted out of the lower compartment after the weft thread transfer. This means that in a further embodiment of the invention it is conceivable not only to guide the grippers 1 themselves but also the organs carrying them in accordance with the features of the invention.
  • the guide mechanism consisting of lever shaft 3, bearing 4 and guide lever 5, and its drive, consisting of coupling 7, roller lever 9, roller 10 and eccentric 12, in the To shift the range of movement of the gripper bars 2.
  • the grippers 1 are not guided even in the area of the weft transfer, but the rod 2 carrying the gripper 1, or in the case of a belt-guided gripper thereof Guide band.
  • the drive of the guide mechanism is not shown in detail here; this can be found in DE-PS 17 10 292.
  • Figure 1 shows on both sides of the center transfer of the weft thread shown with a dash-dotted line, the grippers 1, which are carried here for example by a gripper bar 2.
  • the grippers 1 which are carried here for example by a gripper bar 2.
  • at least two guide levers 5, which are arranged at a distance from one another, are connected in a rotationally fixed manner to the lever shaft 3, which is rotatably received in the bearings 4.
  • the lever shaft 3 is in turn connected to a rocker 6 in a rotationally fixed connection (FIG. 2).
  • a coupling 7 At the free end of the rocker 6 engages a coupling 7, which is connected to a drive as it is known from DE-PS 17 10 292.
  • the other end of the coupling 7 is connected to a roller lever 9, which is connected in a rotationally fixed manner to the shutter shaft 8, the roller 10 of which scans an eccentric 12, which is connected in a rotationally fixed manner to the drive shaft 11.
  • the control of the guide lever 5 takes place in such a way that when the eccentric 12 rotates, the guide lever 5 is moved by the warp threads of the lower compartment 13 and the grippers 1 slide on the gripper guide surface 14.
  • FIG. 2 shows a guide lever 5 resting on the guide surface 14a of the hook 1. This is a position as it is present immediately before the weft thread is transferred.
  • the gripper guide surface 14a is formed here on a thrust piece 14 which is firmly connected to the gripper.
  • the gripper 1 On the reed side, the gripper 1 carries a guide wood 15 which opposes it Supports reed 16 and simultaneously slides on reed 16.
  • FIG. 3 shows a gripper guide surface 17a is provided on a thrust piece 17 connected to the gripper 1 on the reed side. With such a gripper guide, the guide wood 15 connected to the gripper can be dispensed with.
  • the guide levers 5 are arranged on the lever shaft 3 in a rotationally fixed manner. The control takes place in the manner described for FIG. 1.

Landscapes

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

Claims (1)

  1. Dispositif de guidage d'une pince ou lance portée par une bande ou par une tige dans des métiers à tisser, les lances ou pinces pouvant se déplacer des deux côtés pour pénétrer dans la foule consistant en une partie inférieure et une partie supérieure et pouvant en sortir et étant guidées sur la semelle (20a) d'un support (20) relié à une lamelle (19) de peigne et étant maintenu à une certaine distance de la foule (16), le transfert du fil de trame s'effectuant à mi-foule d'une lance (1) à l'autre lance (1) et chaque lance (1) présentant sur au moins un côté de sa longueur une surface de guidage qui est temporairement en liaison de guidage coulissant avec des leviers (5) de guidage pouvant pivoter de manière commandée pour pénétrer dans la partie inférieure de la foule (13) et en sortir, un arbre (3) porte-leviers étant doté des leviers (5a ou 5b) de guidage, un arbre d'oscillation (6) attaquant, sans pouvoir réaliser de rotation relative, l'arbre (7) porte-leviers et l'arbre d'oscillation (6) étant relié à une bielle (7), laquelle est articulée pour sa part sur un levier (9) à galet commandé par un excentrique (12), dispositif caractérisé en ce que le support (20) reçoit et loge au-dessous de la semelle (20a) plusieurs paliers (4), situés à une certaine distance l'un de l'autre, placés dans un plan et qui portent, de façon à permettre la rotation, l'arbre (3) porte-leviers.
EP93101034A 1992-02-28 1993-01-23 Dispositif de guidage de bandes ou de lances d'insertion pour métiers à tisser Expired - Lifetime EP0557723B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4206213 1992-02-28
DE4206212 1992-02-28
DE4206212A DE4206212A1 (de) 1992-02-28 1992-02-28 Vorrichtung zur fuehrung von band- oder stangengreifer in webmaschinen
DE4206213A DE4206213A1 (de) 1992-02-28 1992-02-28 Vorrichtung zur fuehrung von band- oder stangengreifer in webmaschinen

Publications (2)

Publication Number Publication Date
EP0557723A1 EP0557723A1 (fr) 1993-09-01
EP0557723B1 true EP0557723B1 (fr) 1997-05-21

Family

ID=25912313

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93101034A Expired - Lifetime EP0557723B1 (fr) 1992-02-28 1993-01-23 Dispositif de guidage de bandes ou de lances d'insertion pour métiers à tisser

Country Status (4)

Country Link
US (1) US5303747A (fr)
EP (1) EP0557723B1 (fr)
JP (1) JPH05339844A (fr)
DE (1) DE59306482D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4308243A1 (de) * 1993-03-11 1994-09-15 Juergens Masch Gmbh & Co Projektil-Breitwebmaschine
DE4415862C1 (de) * 1994-05-05 1995-04-27 Dornier Gmbh Lindauer Einrichtung zum gesteuerten Betätigen der Fadenklemme eines Greifers in Webmaschinen
ES2289073T3 (es) * 2002-08-30 2008-02-01 Promatech S.P.A. Mejoras en las pinzas transportadoras de la trama para telares de tejeduria y en telares de tejeduria con medios de guia para ellas.
DE102009036589A1 (de) 2009-08-07 2011-02-10 Lindauer Dornier Gmbh Vorrichtung zum Übergeben eines bandförmigen Schussmaterials
DE102009037127A1 (de) * 2009-08-11 2011-02-17 Lindauer Dornier Gmbh Greiferkopf einer Webmaschine
BE1028436B1 (nl) * 2020-06-25 2022-01-31 Vandewiele Nv Geleidingsinrichting in een grijperweefmachine, grijperweefmachine en werkwijze voor het omvormen van een grijperweefmachine

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1535498B1 (de) * 1966-09-06 1970-07-23 Dornier Gmbh Lindauer Fuehrung fuer von beiden Seiten her in das Webfach vorgeschobene und wieder zurueckgezogene Greiferstangen durch Fuehrungsfinger bei schuetzenlosen Webmaschinen
US4010776A (en) * 1975-11-28 1977-03-08 Rockwell International Corporation Tape wheel for shuttleless looms
DE3366477D1 (en) * 1982-11-13 1986-10-30 Oberdorfer Fa F Loom having a gripper shuttle circulating in a closed circuit
IT1184559B (it) * 1985-06-04 1987-10-28 Vamatex Spa Mezzi per guidare le pinze porta-trama ed i nastri che le comandano all'interno del passo di telai di tessitura a pinze
JPS6262953A (ja) * 1985-09-12 1987-03-19 昭和機械株式会社 レピア織機のテ−プガイド昇降方法およびその装置
DE3901549A1 (de) * 1988-07-25 1990-02-08 Dornier Gmbh Lindauer Greifer mit fuehrungsholz fuer webmaschinen
DE3831927A1 (de) * 1988-09-20 1990-03-22 Oberdorfer Fa F Schuetzenfuehrung an flachwebmaschinen fuer siebe und filze zur ausruestung von papiermaschinen o. dgl.
FR2648161B1 (fr) * 1989-06-09 1991-10-04 Saurer Diederichs Sa Dispositif de support et de guidage pour organes d'insertion mecanique de la trame, dans une machine a tisser sans navette
US5176185A (en) * 1990-07-24 1993-01-05 Sulzer Brothers Limited Guide teeth for a rapier picking tape

Also Published As

Publication number Publication date
JPH05339844A (ja) 1993-12-21
DE59306482D1 (de) 1997-06-26
EP0557723A1 (fr) 1993-09-01
US5303747A (en) 1994-04-19

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