EP0165326B1 - Dispositif de guidage pour l'inséreur de trame d'un métier à tisser, plus particulièrement d'un métier à tisser à navette à pince - Google Patents

Dispositif de guidage pour l'inséreur de trame d'un métier à tisser, plus particulièrement d'un métier à tisser à navette à pince Download PDF

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Publication number
EP0165326B1
EP0165326B1 EP19840107017 EP84107017A EP0165326B1 EP 0165326 B1 EP0165326 B1 EP 0165326B1 EP 19840107017 EP19840107017 EP 19840107017 EP 84107017 A EP84107017 A EP 84107017A EP 0165326 B1 EP0165326 B1 EP 0165326B1
Authority
EP
European Patent Office
Prior art keywords
guide
projectile
horizontal
support
hook
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
Application number
EP19840107017
Other languages
German (de)
English (en)
Other versions
EP0165326A1 (fr
Inventor
Erwin Pfarrwaller
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.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Priority to DE8484107017T priority Critical patent/DE3473619D1/de
Priority to EP19840107017 priority patent/EP0165326B1/fr
Publication of EP0165326A1 publication Critical patent/EP0165326A1/fr
Application granted granted Critical
Publication of EP0165326B1 publication Critical patent/EP0165326B1/fr
Expired 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
    • D03D47/24—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 by gripper or dummy shuttle

Definitions

  • the invention relates to a guide device for weft insertion elements of weaving machines, in particular rapier projectile weaving machines, with guide teeth, each having a guide support and a guide hook, which form an outlet opening for the weft thread.
  • Known projectile guiding devices (CH-PS 465521; CH-PS 315854) have guide teeth with a relatively small outlet opening for the weft thread.
  • This has the disadvantage for shed geometries to achieve tissue image structures of a special kind that if the guiding device dips down out of the shed while the shed is being closed at the same time, the weft thread is hindered when leaving the guiding device.
  • This disadvantage is particularly evident in so-called "in-bag weaving" because the upper and lower warp threads are then at a lower level, i.e. tick below the normal web level. The weft then strikes hard along the upper inner edge of the guide tooth, which leads to undesirable streaking in the tissue.
  • German patent DE-C 767 275 describes in Fig. A guide tooth in which the upper free end of the guide support is higher than the inner edge of the guide tooth.
  • the guide support and guide tooth form an opening for the weft threads which is directed practically vertically upwards. Unwanted streaking can also occur in this embodiment, namely because the upstanding free end of the guide support strips the inserted weft thread when the guide teeth are pivoted away from the compartment.
  • the invention has for its object to provide a guide device of the type defined, with which streaking in the tissue is avoided. According to the invention, this object is achieved by the features specified in the characterizing part of claim 1.
  • the dependent claims relate to particularly advantageous embodiments of the invention.
  • a drawer 1 carries a projectile guide device 2, which consists of a number of guide teeth 3, which are cast in a block 4.
  • the guide teeth 3 have an outlet opening 5 for the weft thread.
  • a projectile located in the guide channel 6 and the weft thread carried by it are identified by the reference numbers 7 and 8, respectively.
  • the drawer 1 with the guide device 2 is located in front of the stop of the weft thread 8 in a shed 9, formed by the warp threads 10 and 11.
  • the position of the guide device 2 when the weft thread 8 stops in the shed pocket 9 is denoted by 2 '.
  • Each guide tooth 3 has a guide support 3 'and a guide hook 3 ", which closes off the guide channel 6 at the top.
  • the guide support 3' and the guide hook 3" have a length such that the outlet opening 5 for the weft thread 8 is only insignificant from the adjacent one Page 7 'of the projectile 7 is removed, and runs essentially parallel to the bevel 7 "of the projectile.
  • the dimensions of the outlet opening 5 and their arrangement, based on the projectile 7 located in the guide channel 6, can be defined in the position of the guide teeth 3 in which the projectile is in a horizontal position.
  • the outlet opening 5 between the guide hook and the guide support in both examples, meet the condition y> d in the vertical direction and the conditions x b 9 L in the horizontal direction, a particularly advantageous case of the conditions x G b and x G L.
  • X means the horizontal distance of the vertical center line through the center M of the projectile cross-section, from the outer free end of the guide hook 3 "of the guide tooth 3, in the horizontal direction, b half the projectile width, L the horizontal distance of the vertical center line through the center M of the projectile cross-section from the outer free end of the guide support 3 ', in the horizontal direction, y the vertical distance between the upper free end of the guide support 3 'and the horizontal inner edge 3 "' of the guide hook 3" and d half the height of the projectile 7.
  • FIG. 1 A guide device 15 consists of a number of guide supports 16 and guide hooks 17 which are cast in a block 18. The support 16 and hook 17 alternate in the longitudinal direction of the guide device and form a pair of complementary guide teeth 19, leaving an exit opening 20 for the weft thread.
  • the projectile is identified by reference number 21. The same conditions apply to the outlet opening 20 as are specified for the outlet opening 5 of FIG. 1.

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

Claims (4)

1. Dispositif de guidage pour organes d'insertion de fils de trame de métiers à tisser, en particulier de métiers à tisser à projectiles à pince, comportant des dents (3) de guidage qui présentent chacune un support (3') de guidage et un crochet (3") de guidage formant une ouverture (5) de sortie pour le fil de trame, caractérisé en ce que l'extrémité supérieure libre du support (3') de guidage est située plus bas que le bord intérieur du crochet (3") de guidage et en ce que l'ouverture de sortie, par rapport aux dimensions du projectile et dans la position des dents (3) de guidage, dans laquelle le projectile (7) se trouve dans une position horizontale, satisfait dans la direction horzizontale, les conditions x ≤ b et x ≤ L et dans la direction verticale, la condition y ≥ d, ou x désigne la distance horizontale de la ligne d'axe verticale passant par le centre M de la section transversale du projectile, a partir de l'extrémité extérieure libre du crochet (3") de guidage de la dent (3) de guidage, dans la direction horizontale, b désigne la demi-largeur du projectile, L désigne la distance horizontale de la ligne d'axe verticale passant par le centre (M) de la section transversale du projectile a partir de l'extrémité extérieure libre du support (3') de guidage, dans la direction horizontale, y désigne la distance verticale entre l'extrémité supérieure libre du support (3') de guidage et le bord intérieur horizontal (3"'), s'étendant au-dessus d'elle, du crochet (3") de guidage et d désigne la demi-hauteur du projectile.
2. Dispositif de guidage de projectile selon la revendication 1, caractérisé en ce que, dans la direction horizontale, la condition x ≤ b G L est satisfaite.
3. Dispositif de guidage de projectile selon la revendication 1, caractérisé en ce que dans la direction horizontale, la conditionx G L G b est satisfaite.
4. Dispositif de guidage de projectile selon l'une des revendications 1 à 3, caractérisé en ce que le dispositif de guidage (15) présente des dents (19) de guidage qui sont formées de crochets (17) de guidage et de supports (16) de guidage séparés.
EP19840107017 1984-06-19 1984-06-19 Dispositif de guidage pour l'inséreur de trame d'un métier à tisser, plus particulièrement d'un métier à tisser à navette à pince Expired EP0165326B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8484107017T DE3473619D1 (en) 1984-06-19 1984-06-19 Guideway for the weft inserter of a loom, especially for a dummy shuttle loom
EP19840107017 EP0165326B1 (fr) 1984-06-19 1984-06-19 Dispositif de guidage pour l'inséreur de trame d'un métier à tisser, plus particulièrement d'un métier à tisser à navette à pince

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19840107017 EP0165326B1 (fr) 1984-06-19 1984-06-19 Dispositif de guidage pour l'inséreur de trame d'un métier à tisser, plus particulièrement d'un métier à tisser à navette à pince

Publications (2)

Publication Number Publication Date
EP0165326A1 EP0165326A1 (fr) 1985-12-27
EP0165326B1 true EP0165326B1 (fr) 1988-08-24

Family

ID=8192000

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840107017 Expired EP0165326B1 (fr) 1984-06-19 1984-06-19 Dispositif de guidage pour l'inséreur de trame d'un métier à tisser, plus particulièrement d'un métier à tisser à navette à pince

Country Status (2)

Country Link
EP (1) EP0165326B1 (fr)
DE (1) DE3473619D1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0199881B1 (fr) * 1985-05-03 1988-01-20 GebràœDer Sulzer Aktiengesellschaft Dispositif d'insertion de trame pour les métiers à tisser à navette à pince
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
DE10346225A1 (de) * 2003-09-23 2005-05-19 Picanol N.V. Führungselement für ein Greiferband

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767275C (de) * 1940-03-31 1952-05-02 Sulzer Ag Webstuhl, insbesondere Greiferwebstuhl mit feststehenden Schussspulen
FR1069980A (fr) * 1952-01-25 1954-07-15 Sulzer Ag Dispositif de guidage pour navettes à griffe de métiers à tisser
US3556163A (en) * 1968-12-06 1971-01-19 Sulzer Ag Guide for weft-picking means in a loom

Also Published As

Publication number Publication date
EP0165326A1 (fr) 1985-12-27
DE3473619D1 (en) 1988-09-29

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