EP0123005B1 - Pince pour l'insertion du fil de trame dans un métier à tisser à pince - Google Patents

Pince pour l'insertion du fil de trame dans un métier à tisser à pince Download PDF

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Publication number
EP0123005B1
EP0123005B1 EP83810160A EP83810160A EP0123005B1 EP 0123005 B1 EP0123005 B1 EP 0123005B1 EP 83810160 A EP83810160 A EP 83810160A EP 83810160 A EP83810160 A EP 83810160A EP 0123005 B1 EP0123005 B1 EP 0123005B1
Authority
EP
European Patent Office
Prior art keywords
gripper
clamping
clamping tongue
tongue
flank
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
EP83810160A
Other languages
German (de)
English (en)
Other versions
EP0123005A1 (fr
Inventor
Willy Rohr
Kurt Wollgarten
Rudolf Vogel
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.)
Maschinenfabrik Sulzer Rueti AG
Original Assignee
Maschinenfabrik Sulzer Rueti 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 Maschinenfabrik Sulzer Rueti AG filed Critical Maschinenfabrik Sulzer Rueti AG
Priority to EP83810160A priority Critical patent/EP0123005B1/fr
Priority to DE8383810160T priority patent/DE3366208D1/de
Priority to US06/595,722 priority patent/US4520851A/en
Publication of EP0123005A1 publication Critical patent/EP0123005A1/fr
Application granted granted Critical
Publication of EP0123005B1 publication Critical patent/EP0123005B1/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
    • D03D47/12—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
    • D03D47/236—Drawing grippers

Definitions

  • the invention relates to a gripper for the insertion of weft in a rapier weaving machine, with a clamping hook for the weft thread and an associated clamping tongue which can be displaced in the longitudinal direction of the gripper under spring action in a gripper frame, a flank of the clamping tongue head and a flank of the free end of the clamping hook cooperating therewith stand at an angle to the longitudinal direction of the gripper.
  • the invention has for its object to provide a gripper which is particularly improved in this regard.
  • the invention consists in that the other clamping hook flank - in comparison to the inclined position of the one clamping hook flank - is inclined in the opposite direction to the longitudinal direction of the gripper and forms a guide for the clamping tongue head during the opening movement of the clamping tongue.
  • the weft insertion mechanism contains two drive wheels 4 arranged on both sides of the machine, each for a flexible entry belt 5.
  • FIG. 1 only the catch-side mechanism is shown .
  • a rapier 7 is attached to bring the weft thread 10 into the shed
  • a taker gripper 6 is attached, through which the weft thread 10 is taken over in the middle of the shed by the taker gripper 6 and through the second half of the Shed is pulled.
  • the slave gripper 6 has a frame designated as a whole by 13, e.g. made of aluminum, which consists of a base plate 14 and two side walls 15, 16.
  • a clamping tongue 1 is slidably mounted (arrow 21).
  • the clamping tongue 17 engages with a fork-shaped part 22 a pin 18 fastened on the base plate 14 and continues to the left in FIG. 3 into a pull arm 24.
  • the clamping tongue 17 is thus pivotable about the pin 18 according to arrow 23.
  • the clamping tongue 17 has a larger one shown in Figs. 4, 5, attached to a connecting plate 50, e.g. made of hard metal clamping head 25, which - in the clamping position - is pressed under the action of a compression spring 27 together with the entire clamping tongue 17 into a hook 28 attached to the frame 13.
  • the hook has a free end 29, the flank 31 of which is inclined relative to the longitudinal direction (longitudinal axis 32) of the gripper 6. With the hook flank 31, a correspondingly obliquely running flank 35 formed on the clamping head 25 cooperates.
  • flank 37 which is reversely oblique with respect to the axis 32 of the gripper 6 with respect to the axis 32 of the gripper 6 and with which a corresponding obliquely flank 38 of the clamping head 25 cooperates.
  • Lamella 47 is attached to the pull arm 24 of the clamping tongue 17 eccentrically at 48 with respect to the pin 18 (lever arm 40).
  • the clamping tongue 17 is shifted to the left and at the same time - due to the eccentric force effect by lamella 47 - is pivoted counterclockwise by a small amount.
  • the clamping head 25 arrives in the opening position 25a indicated by dashed lines in FIG. 3, the flanks 37, 38 sliding on one another.
  • Wedge 51 On the side wall 15 there is also a wedge 51 with an oblique flank 52 which cooperates with a corresponding oblique flank 53 formed on the clamping tongue 17. During the left shift of the clamping tongue 17, the pivoting movement about the pin 18 is supported by the wedge 51. Wedge 51 also forms a counterpart to the flank 37 of the hook 29, which prevents vibrations of the clamping tongue 17 during its left movement and the superposed pivoting by 18.
  • a pin 61 is fastened on the base plate 14 and cooperates with a curved slot 62 of the clamping tongue 17.
  • the wedge 51 is omitted, since the pulling force directed towards the left in FIG. 3 and acting on the lamella 47 at 48 with respect to the pin 18 is arranged eccentrically (lever arm 40), nevertheless, arises in FIG Torque on the clamping tongue 17 directed counterclockwise by 18. As a result, the clamping head 25 is also moved into the open position 25a while the two flanks 37, 38 slide onto one another and thus in the shortest possible way and in the shortest possible time.
  • the tongue 17 can then optionally also be made of an elastic material, e.g. Plastic.
  • the head 25 can then be held under a bias of the tongue 17 in the clamping position shown in FIG. 4.
  • the flanks 37, 38 slide on one another under the pretension, so that at least the clamping head 25 of the tongue 17, apart from the longitudinal movement, experiences a pivoting movement with respect to the bearing point 18 (transverse movement to the longitudinal axis 32).
  • the bringer gripper 24 can also be equipped with clamping parts which have inclined flanks to produce a swiveling movement superposed on the translatory pulling movement.

Landscapes

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

Claims (5)

1. Pince pour l'insertion des fils de trame dans un métier à tisser à pinces, comprenant un crochet (28) de pincement du fil de trame (10), ainsi qu'une languette de pincement associée (17) pouvant coulisser sous l'action d'un ressort (27) dans un corps (13) de la pince, dans le sens longitudinal (32) de cette pince, un flanc (35) de la tête (25) de la languette de pincement et un flanc (31) de l'extrémité libre (29) du crochet de pincement (28), coopérant avec le flanc précité, s'étendant à l'oblique par rapport au sens longitudinal (32) de la pince, caractérisée par le fait que l'autre flanc (37) du crochet de pincement est incliné, en comparaison avec la position oblique du premier flanc (31) de ce crochet de pincement, dans une direction opposée par rapport au sens longitudinal (32) de la pince, et forme un guide pour la tête (25) de la languette de pincement lors du movement d'ouverture de cette languette de pincement (17).
2. Pince selon la revendication 1, caractérisée par le fait que la languette de pincement (17) est montée, dans le corps (13) de ladite pince, avec faculté de pivotement - en plus de sa faculté de coulissement longitudinal -.
3. Pince selon les revendications 1 et 2, caractérisée par un coin incliné (51) qui est monté sur le corps (13) de cette pince et qui, lors du movement d'ouverture de la languette de pincement (17), agit sur le bras pivotant de la pince portant la tête (25) de la languette de pincement.
4. Pince selon les revendications 1 et 2, caractérisée par le fait que l'une des deux parties, constituant la languette de pincement (17)/corps (13) de la pince, présente un téton (61), l'autre partie comportant une fente inclinée (62) coiffant ledit téton (61 ), afin d'engendrer un pivotement de la languette de pincement (17) s'opérant lors de l'ouverture de la mâchoire (25, 28).
5. Pince selon l'une des revendications 2-4, caractérisée par le fait qu'un élément de rétraction (47),actionnant la languette de pincement (17), est en prise avec un bras de rétraction (24) de cette languette de pincement (17), d'une manière excentrée par rapport au point de portée (18) de ladite languette de pincement.
EP83810160A 1983-04-18 1983-04-18 Pince pour l'insertion du fil de trame dans un métier à tisser à pince Expired EP0123005B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP83810160A EP0123005B1 (fr) 1983-04-18 1983-04-18 Pince pour l'insertion du fil de trame dans un métier à tisser à pince
DE8383810160T DE3366208D1 (en) 1983-04-18 1983-04-18 Gripper for inserting a weft thread into a gripper weaving machine
US06/595,722 US4520851A (en) 1983-04-18 1984-04-02 Gripper for inserting the weft in a rapier weaving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83810160A EP0123005B1 (fr) 1983-04-18 1983-04-18 Pince pour l'insertion du fil de trame dans un métier à tisser à pince

Publications (2)

Publication Number Publication Date
EP0123005A1 EP0123005A1 (fr) 1984-10-31
EP0123005B1 true EP0123005B1 (fr) 1986-09-17

Family

ID=8191549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810160A Expired EP0123005B1 (fr) 1983-04-18 1983-04-18 Pince pour l'insertion du fil de trame dans un métier à tisser à pince

Country Status (3)

Country Link
US (1) US4520851A (fr)
EP (1) EP0123005B1 (fr)
DE (1) DE3366208D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233142A1 (fr) * 1986-02-13 1987-08-19 GebràœDer Sulzer Aktiengesellschaft Pince pour l'insertion de la trame dans un métier à pinces
EP0235078A1 (fr) * 1986-02-13 1987-09-02 GebràœDer Sulzer Aktiengesellschaft Pince pour l'insertion de la trame dans un métier à pinces
EP0394749A1 (fr) * 1989-04-21 1990-10-31 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Griffe porteuse avec coulisseau axial pour métiers sans navette
WO2000005369A2 (fr) 1998-07-20 2000-02-03 Curagen Corporation Sequences nucleotidiques et sequences d'acides amines de proteines secretees en rapport avec l'angiogenese

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1254987B (it) * 1992-06-23 1995-10-11 Luciano Corain Perfezionamento in una pinza di trazione per telaio tessile
CH692457A5 (it) * 1997-07-29 2002-06-28 Gividi Italia Spa Pinza traente per telai a tessere a lance ed impiego della pinza.
DE19838781A1 (de) * 1998-08-26 2000-03-02 Picanol Nv Nehmergreifer für eine Greiferbandwebmaschine
EP1338688B1 (fr) * 2002-02-25 2008-10-08 GIVIDI-Italia S.p.A. Pince à fil pour une lance d'une machine à tisser à lances
US7543610B2 (en) * 2006-06-16 2009-06-09 Sultex Ag Thread clamp for a rapier head
KR100498003B1 (ko) * 2004-10-21 2005-07-01 대흥정밀공업 주식회사 관성력과 위사장력을 이용한 레피어직기용 레피어 및 그리퍼
DE102005014107A1 (de) * 2005-03-22 2006-09-28 Picanol N.V. Nehmergreifer mit einem hakenförmigen Einsatz und Verfahren zum Herstellen des hakenförmigen Einsatzes
EP1806443B1 (fr) * 2006-01-06 2009-02-11 Sultex AG Pince d'amenée pour métier à tisser à pince
EP1918437A1 (fr) * 2006-11-02 2008-05-07 Sultex AG Procédé et dispositif pour l'insertion du fil de trame
CN112522838A (zh) * 2020-11-26 2021-03-19 南京玻璃纤维研究设计院有限公司 一种引纬装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5240659A (en) * 1975-09-24 1977-03-29 Rieter Ag Maschf Receiving and gripping weft in loom having device for removing weft from bobbin fixed
CH625573A5 (en) * 1978-02-28 1981-09-30 Rueti Ag Maschf Taker gripper for weaving machines with extraction of the weft thread from fixed bobbins
CH639439A5 (de) * 1979-09-05 1983-11-15 Rueti Ag Maschf Greiferkopf fuer webmaschinen mit entnahme des schussfadens von ortsfesten spulen.
IT1132844B (it) * 1980-09-15 1986-07-09 Nuovo Pignone Spa Perfezionamenti nelle pinze passatrama per telai tessili

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0233142A1 (fr) * 1986-02-13 1987-08-19 GebràœDer Sulzer Aktiengesellschaft Pince pour l'insertion de la trame dans un métier à pinces
EP0235078A1 (fr) * 1986-02-13 1987-09-02 GebràœDer Sulzer Aktiengesellschaft Pince pour l'insertion de la trame dans un métier à pinces
EP0394749A1 (fr) * 1989-04-21 1990-10-31 SOMET SOCIETA' MECCANICA TESSILE S.p.A. Griffe porteuse avec coulisseau axial pour métiers sans navette
WO2000005369A2 (fr) 1998-07-20 2000-02-03 Curagen Corporation Sequences nucleotidiques et sequences d'acides amines de proteines secretees en rapport avec l'angiogenese

Also Published As

Publication number Publication date
US4520851A (en) 1985-06-04
EP0123005A1 (fr) 1984-10-31
DE3366208D1 (en) 1986-10-23

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