EP0890665B1 - Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif - Google Patents

Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif Download PDF

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Publication number
EP0890665B1
EP0890665B1 EP19970810454 EP97810454A EP0890665B1 EP 0890665 B1 EP0890665 B1 EP 0890665B1 EP 19970810454 EP19970810454 EP 19970810454 EP 97810454 A EP97810454 A EP 97810454A EP 0890665 B1 EP0890665 B1 EP 0890665B1
Authority
EP
European Patent Office
Prior art keywords
thread
weft thread
accordance
guide
weft
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
EP19970810454
Other languages
German (de)
English (en)
Other versions
EP0890665A1 (fr
Inventor
Godert Dr. De Jager
Lorant Gacsay
Dietmar Markward
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.)
Itema Switzerland Ltd
Original Assignee
Sulzer Textil 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 Sulzer Textil AG filed Critical Sulzer Textil AG
Priority to EP19970810454 priority Critical patent/EP0890665B1/fr
Priority to DE59702662T priority patent/DE59702662D1/de
Publication of EP0890665A1 publication Critical patent/EP0890665A1/fr
Application granted granted Critical
Publication of EP0890665B1 publication Critical patent/EP0890665B1/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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/26—Co-operating surfaces mounted for relative movement and arranged to deflect material from straight path
    • B65H59/32—Co-operating surfaces mounted for relative movement and arranged to deflect material from straight path the surfaces being urged away from each other
    • B65H59/34—Surfaces movable automatically to compensate for variation in tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a device for tensioning a Weft thread according to the preamble of claim 1 and a weaving machine with such a device.
  • weft insertion device proves the permanent strain on the thread due to the Friction in the eyelets forming a triangle as well which at e.g. tear-sensitive yarns less Weft insertion performance due to the stretch impact as disadvantageous.
  • the invention has for its object a Improve device for tensioning a weft thread.
  • weft thread is characterized by the features of Claim 9 characterized. It proves to be advantageous here that the resting thread length between Thread store and thread guide shortened and the Device can be arranged near the thread store can, so that the impact of the stretch impact on the Weft is reduced.
  • the Device includes a retractor lever 1 with a Driver 2 and a guide device 3 for one Weft 4, which together on a disc-shaped Support body 5 are mounted.
  • the back lever 1 is a one-armed lever, which on the output shaft of a electric motor 6 is mounted.
  • the driver 2 is a cylindrical pin at the free end of the Retractor lever 1 is attached and with its free End of a running level 7 describes.
  • the leadership facility 3 contains a first and a second disk-shaped plate 8, 9, which are arranged parallel to each other and a Determine guide level 11 for the weft. In the Plates 8, 9 have circular grooves 10. Between the plates 8, 9 is a deflection pin 12 for the Arranged weft.
  • the device has a Thread clamp 13, which is arranged between the plates 8 3 and 4 will be described with reference to FIGS. as well as a control device which, with respect to the Fig. 5 will be described.
  • the retraction lever 1 and the guide device is arranged in relation to one another, that the axis of rotation of the back lever with respect to the Guide level for the weft thread is inclined.
  • the driver 2 during a Rotation of the retraction lever 1 via Angle of rotation range in the grooves 10 of the plates 8, 9 guided, the driver the management level 11 for the Weft sweeps.
  • the Control device contains an electronic computer 51 and a motor controller 52.
  • the computer 51 is signal-transmitting with the angle encoder 53 of the weaving machine connected.
  • the computer 51 controls via the engine controller 52 the drive motor 6 of the retraction lever 1, such that the drive motor synchronized with the weaving machine movement running.
  • the drive motor 6 is a position sensor 54 assigned.
  • the control device is also with the Electromagnet 25 connected.
  • Fig. 6 shows the application of the device in one Weaving machine having a weft store 31, a Weft brake 32, a thread guide 33, the Device and a weft insertion device 35 contains.
  • the weft store 31 and the thread guide 33 are arranged so that the distance between thread eyelet of the weft thread store 31 and the thread guide 33 is a maximum of 100 cm. If a weft store 31 provided with an integrated weft brake, the Device arranged directly on the thread store 31 become.
  • Fig. 6 shows the device in front of the Shot entry, the device being a Assumes basic position "A" without touching the thread and the Weft thread starting from the weft store 31, over the thread brake 32 and the thread guide 33 and the thread clamp and Thread guide 12 in the device for the insertion device 35 runs as shown by a solid line 38 is shown.
  • the V-shaped thread length forms a thread supply.
  • This Device becomes a guide device 41 for the Weft through the first plate 8 and one circular curved rod 42 with a round cross section educated.
  • the rod 42 is held on holders 43 which the first plate 8 are attached (Fig. 7).
  • a thread clamp 44 is provided which is held by a holder 45 is attached to the first plate 8.
  • the advantage of this The device consists in the better accessibility of the Thread guide and clamp for cleaning and especially visual surveillance and Setting the operating steps or sequences.
  • the devices described above can be used a rapier or air weaving machine and at Multi-phase looms with multiple entry systems be applied. Depending on the entry process, the Thread clamp can be omitted or the duration of the Weft guide and thread length storage be interpreted accordingly.
  • the device consists essentially of a Guide device 3, which determines a management level and a retractor 2, which runs along a circular path is movable to deflect the weft.
  • the Rotation axis of the retraction member 2 is inclined to Management level 11 arranged so that the retractor 2nd the weft travel within one revolution sweeps over. In this device, the Deflection of the weft thread in the guide plane 11 for the weft.

Landscapes

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

Claims (10)

  1. Dispositif pour le retrait d'un fil de trame après avoir terminé l'opération d'insertion du fil de trame dans un métier à tisser, avec un organe de retrait et avec un entraínement pour l'organe de retrait, caractérisé en ce qu'il est prévu une installation de guidage (3, 41) qui définit un plan de guidage (11) pour le fil de trame et en ce que l'organe de retrait (2) est déplaçable le long d'une voie circulaire pour dévier le fil de trame à l'intérieur du plan de guidage ; où l'axe de rotation (14) de l'organe de retrait (2) est disposé selon une inclinaison au plan de guidage, de telle sorte que l'organe de retrait, pendant une rotation, balaye le trajet du fil de trame et occupe une position de réception ainsi qu'une position de libération relativement au fil de trame.
  2. Dispositif selon la revendication 1, caractérisé par un pince-fil (13, 44) pour le fil de trame et par un dispositif d'actionnement (25, 26, 27) pour le pince-fil (13, 44).
  3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que le dispositif de guidage (3) comporte un premier et un deuxième organe de guidage (8, 9 ; 42) qui sont disposés à une certaine distance l'un de l'autre et parallèlement l'un à l'autre.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le pince-fil (13, 44) est disposé à l'extérieur ou entre les organes de guidage (8, 9 ; 41).
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé par une tige de renvoi (12) pour le fil de trame.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'organe de retrait est constitué d'un levier (1) à un bras et d'une tige (2).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que l'entraínement pour l'organe de retrait (1, 2) est un moteur électrique (25).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé par une installation de commande avec un calculateur électronique (51) qui calcule un déroulement de mouvement pour le moteur électrique (25) et qui définit l'instant de l'excitation de l'électro-aimant (25).
  9. Métier à tisser avec un fournisseur accumulateur de fil de trame (31), un frein de fil de trame (32), un guide-fil de trame (33), un dispositif d'insertion de fil de trame (35) et un dispositif selon l'une des revendications 1 à 8, caractérisé en ce que l'écart entre l'oeillet de fil côté sortie du fournisseur accumulateur de fil (31) et le guide-fil de trame (33) est au maximum de 100 cm.
  10. Métier à tisser selon la revendication 9, caractérisé en ce que le métier à tisser est réalisé comme métier à tisser à projectile, à griffes ou à buse d'air.
EP19970810454 1997-07-09 1997-07-09 Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif Expired - Lifetime EP0890665B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19970810454 EP0890665B1 (fr) 1997-07-09 1997-07-09 Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif
DE59702662T DE59702662D1 (de) 1997-07-09 1997-07-09 Vorrichtung zum Spannen eines Schussfadens und Webmaschine mit einer derartigen Vorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19970810454 EP0890665B1 (fr) 1997-07-09 1997-07-09 Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif

Publications (2)

Publication Number Publication Date
EP0890665A1 EP0890665A1 (fr) 1999-01-13
EP0890665B1 true EP0890665B1 (fr) 2000-11-22

Family

ID=8230290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970810454 Expired - Lifetime EP0890665B1 (fr) 1997-07-09 1997-07-09 Dispositif pour tendre un fil de trame et métier à tisser équipé d'un tel dispositif

Country Status (2)

Country Link
EP (1) EP0890665B1 (fr)
DE (1) DE59702662D1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10211148B3 (de) * 2002-03-14 2004-02-12 Lindauer Dornier Gmbh Schussfadenrückholeinrichtung für Webmaschinen
EP1777329A1 (fr) * 2005-10-01 2007-04-25 Markus Farner Métier à tisser à projectile

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4156441A (en) * 1978-03-14 1979-05-29 Lindauer Dornier Gesellschaft Mbh Yarn tensioner for weaving machines
CH654601A5 (de) * 1982-04-07 1986-02-28 Sulzer Ag Schussfadenspannvorrichtung fuer webmaschinen, insbesondere greiferpojektil-webmaschinen.
EP0389410A1 (fr) * 1989-03-17 1990-09-26 Sulzer RàœTi Ag Dispositif d'enfilage de fil de trame pour métier à tisser
CH677369A5 (en) * 1989-09-18 1991-05-15 Sulzer Ag Controlled weft feed - has yarn guide driven between drums to minimise strain on weft between drums
CH685712A5 (de) * 1992-08-25 1995-09-15 Sulzer Ag Vorrichtung zum Spannen eines eingetragenen Schussfadens und Webmaschine mit einer solchen Vorrichtung.

Also Published As

Publication number Publication date
EP0890665A1 (fr) 1999-01-13
DE59702662D1 (de) 2000-12-28

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