EP0557723A1 - 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

Info

Publication number
EP0557723A1
EP0557723A1 EP93101034A EP93101034A EP0557723A1 EP 0557723 A1 EP0557723 A1 EP 0557723A1 EP 93101034 A EP93101034 A EP 93101034A EP 93101034 A EP93101034 A EP 93101034A EP 0557723 A1 EP0557723 A1 EP 0557723A1
Authority
EP
European Patent Office
Prior art keywords
gripper
guide
shed
shaft
reed
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.)
Granted
Application number
EP93101034A
Other languages
German (de)
English (en)
Other versions
EP0557723B1 (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 aforementioned known solutions, the task of using a flexible band or a rigidly designed gripper bar for the purpose of thread transfer in the loom center to move towards each other gripper by suitably trained guides from gripper-damaging contacts and at the same time protect the reed rods from frictional wear to protect.
  • the advantage of the solution according to the invention is that the guide levers can be swiveled under the warp threads of the lower compartment shortly after the weft thread transfer in the center.
  • the timing of the passage of the guide lever through the lower compartment is chosen so that it is long enough before the striking of the Weft thread or its binding in the weaving point of the fabric, the guide levers are pivoted out of the shed. Therefore, the warp threads of the lower shed have enough time to return to their original position until the weft thread strikes than is the case with the guides according to the prior art.
  • these guides only dive under the sub-compartment when the leaf stops.
  • 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 range of motion to shift 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, its guide belt.
  • the drive of the guide mechanism is not shown in detail here; this can be found in DE-PS 17 10 292 described in the prior art.
  • 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 non-rotatably connected to the shutter shaft 8, the roller 10 of which scans an eccentric 12, which is non-rotatably connected 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)
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
DE4206212 1992-02-28
DE4206212A DE4206212A1 (de) 1992-02-28 1992-02-28 Vorrichtung zur fuehrung von band- oder stangengreifer in webmaschinen
DE4206213 1992-02-28
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 true EP0557723A1 (fr) 1993-09-01
EP0557723B1 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
EP1394302B1 (fr) * 2002-08-30 2007-06-20 Promatech S.p.A. Améliorations de pinces-trames pour métiers à tisser et de métiers à tisser avec de moyens de guidage pour celles-ci
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE702866A (fr) * 1966-09-06 1968-01-15
DE1710292A1 (de) * 1967-04-04 1971-10-28 Dornier Gmbh Lindauer Schussfadeneintragvorrichtung an Webmaschinen
EP0109607A1 (fr) * 1982-11-13 1984-05-30 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Métier à tisser à plat avec une navette à pince circulant dans un circuit fermé
EP0359940A2 (fr) * 1988-09-20 1990-03-28 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Guide-navette dans les métiers à tisser à plat pour tamis et feutres pour l'équipement des métiers à papier ou similaires

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010776A (en) * 1975-11-28 1977-03-08 Rockwell International Corporation Tape wheel for shuttleless looms
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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE702866A (fr) * 1966-09-06 1968-01-15
DE1710292A1 (de) * 1967-04-04 1971-10-28 Dornier Gmbh Lindauer Schussfadeneintragvorrichtung an Webmaschinen
EP0109607A1 (fr) * 1982-11-13 1984-05-30 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Métier à tisser à plat avec une navette à pince circulant dans un circuit fermé
EP0359940A2 (fr) * 1988-09-20 1990-03-28 F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik Guide-navette dans les métiers à tisser à plat pour tamis et feutres pour l'équipement des métiers à papier ou similaires

Also Published As

Publication number Publication date
EP0557723B1 (fr) 1997-05-21
JPH05339844A (ja) 1993-12-21
US5303747A (en) 1994-04-19
DE59306482D1 (de) 1997-06-26

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