EP0533617A1 - Métier à projectiles avec un dispositif changeur de trame - Google Patents

Métier à projectiles avec un dispositif changeur de trame Download PDF

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Publication number
EP0533617A1
EP0533617A1 EP92810638A EP92810638A EP0533617A1 EP 0533617 A1 EP0533617 A1 EP 0533617A1 EP 92810638 A EP92810638 A EP 92810638A EP 92810638 A EP92810638 A EP 92810638A EP 0533617 A1 EP0533617 A1 EP 0533617A1
Authority
EP
European Patent Office
Prior art keywords
weft
changer
thread
weaving machine
mass
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
EP92810638A
Other languages
German (de)
English (en)
Other versions
EP0533617B1 (fr
Inventor
Oskar Hübner
Rudolf Stauner
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 AG
Sultex AG
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 Sulzer AG, Sultex AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0533617A1 publication Critical patent/EP0533617A1/fr
Application granted granted Critical
Publication of EP0533617B1 publication Critical patent/EP0533617B1/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
    • D03D47/38—Weft pattern mechanisms

Definitions

  • the invention relates to a projectile weaving machine with a multi-weft device; in particular, it relates to the drive and the weft changer of the multi-weft device.
  • a thread transfer device of the weft thread changer (usually called thread take-up device or retractor), on the one hand, after the weft insertion, the weft thread tip is taken from the shears in front of the shed and withdrawn with the help of a thread tensioner; on the other hand, the thread for the subsequent weft insertion is transferred to the projectile with the same or - in the case of a thread change - another thread transfer element with the participation of clip openers.
  • the changer body has guideways or slideways for the thread transfer elements. In the retracted position of the thread transfer elements, the changer body can be used to swivel one or more switching steps to change the color or weft thread.
  • the weft thread changer proved to be a speed-determining switching element. Particularly in the case of fabrics with, for example, four weft colors, in which maximum swivel movements of the changer were necessary due to the color sequence, it was necessary to reduce the speed considerably compared to two-color or mixed changer weaving machines.
  • This drive of the weft changer is complex and therefore there has been a desire for years for a direct drive by means of a highly dynamic servomotor, with which the changer can be controlled directly.
  • Such a servo motor is, for example, electronically commutated and brushless and has a low-mass rotor with a low moment of inertia, which has permanent magnets of high field strength.
  • the invention has for its object a projectile weaving machine with a multi-weft device - preferably for at least four colors - the weft thread changer should be controllable at a speed of the weaving machine of more than 350 revolutions per minute with a direct drive, ie with an actuator acting directly on the changer.
  • the projectile weaving machine designed according to the invention is characterized by a combination in which a weft thread changer has a low-mass changer body and low-mass thread transfer elements and the multi-weft device is directly driven by a highly dynamic servomotor.
  • the weaving machine can be operated at speeds greater than 350 rpm.
  • the changer body is made of aluminum, for example, and the slide rod of the thread transfer element is made of a mixture of plastic and carbon fibers.
  • the thread transfer member 2 with the clip 21 has a nose-like projection 22 on the side, which is used to transmit the back and forth movement of a drive, which is partially shown in FIG.
  • the projection 22 preferably consists of a separate part made of hardened steel, which is pressed into a corresponding bore in the slide rod 2a.
  • the two grooves 23 serve as recesses for a clip opener, not shown; their meaning is not relevant to the present invention and therefore need not be explained in more detail here.
  • the slide rods 2a can, for example, be produced from a plastic plate by means of milling.
  • the plastic plate is preferably made of carbon fiber reinforced PEEK (polyether ether ketone);
  • a polyamide can also be used instead of PEEK.
  • 2 shows a slide rod 2a which has a rectangular cross section. However, the cross-section could also be trapezoidal, for example, as in the known steel retractors. Lubrication can be dispensed with when using a sliding-friendly plastic.
  • the use of the directly driven multi-weft device in the projectile weaving machine according to the invention is particularly advantageous with regard to the automation of the weaving operation that is continuously being advanced.
  • the optimal operating parameters which depend, for example, on the type of thread, the weft repeat and the weaving width, can be set quickly and easily.
  • a program control also allows, for example in the case of automatic shot error corrections, to have the multi-shot device reset in a simple manner. Since the space required for the direct drive is significantly less than that of the mechanical control units, there is advantageously also better accessibility for adjustment and service work.
  • a freely programmable direct drive enables standardization with regard to the number of different weft threads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP92810638A 1991-09-19 1992-08-21 Métier à projectiles avec un dispositif changeur de trame Expired - Lifetime EP0533617B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2783/91 1991-09-19
CH278391 1991-09-19

Publications (2)

Publication Number Publication Date
EP0533617A1 true EP0533617A1 (fr) 1993-03-24
EP0533617B1 EP0533617B1 (fr) 1996-06-05

Family

ID=4241498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810638A Expired - Lifetime EP0533617B1 (fr) 1991-09-19 1992-08-21 Métier à projectiles avec un dispositif changeur de trame

Country Status (6)

Country Link
US (1) US5247968A (fr)
EP (1) EP0533617B1 (fr)
JP (1) JPH07189077A (fr)
CN (1) CN1034596C (fr)
DE (1) DE59206475D1 (fr)
RU (1) RU2046856C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160421A1 (it) * 2016-02-01 2016-05-01 Rinaldo Sperotto PRESENTATRICE ROTATIVA per macchine da tessere a preselezione meccanica e comando elettronico

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6494744B1 (en) * 2001-06-11 2002-12-17 Wieson Electronic Co., Ltd. Connector assembly
SE0300809L (sv) * 2003-03-25 2004-03-02 Texo Ab Anordning vid vävmaskin
EP1496145B1 (fr) * 2003-07-10 2007-09-05 Stäubli GmbH Dispositif de sélection de trame pour métier à tisser
CN101314881B (zh) * 2008-06-25 2011-03-23 硕奇科技股份有限公司 织布打样机的选色机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942979C (de) * 1954-02-06 1956-05-09 Sulzer Ag Vorrichtung zum wahlweisen Zufuehren von zwei oder mehr Schussfaeden fuer Webmaschine
DE1710356A1 (de) * 1967-04-27 1972-04-20 Sulzer Ag Webmaschine
FR2523603A1 (en) * 1982-03-19 1983-09-23 Cheboxarsky Mashstr Zavod Shuttleless loom control - uses hydraulic system to connect programmer to colour change unit
EP0190798A1 (fr) * 1985-02-04 1986-08-13 GebràœDer Sulzer Aktiengesellschaft Dispositif de changement de trame pour métiers à tisser
EP0340162A1 (fr) * 1988-04-25 1989-11-02 GebràœDer Sulzer Aktiengesellschaft Métier à tisser
EP0350447A1 (fr) * 1988-07-08 1990-01-10 GebràœDer Sulzer Aktiengesellschaft Procédé de commande de la tension de la chaîne et metier à tisser avec dispositif de tension de la chaîne

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0294576A1 (fr) * 1987-06-09 1988-12-14 GebràœDer Sulzer Aktiengesellschaft Projectile synthétique et dispositif pour la commande dans les métiers à tisser
CH681548A5 (fr) * 1989-05-16 1993-04-15 Sulzer Ag

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942979C (de) * 1954-02-06 1956-05-09 Sulzer Ag Vorrichtung zum wahlweisen Zufuehren von zwei oder mehr Schussfaeden fuer Webmaschine
DE1710356A1 (de) * 1967-04-27 1972-04-20 Sulzer Ag Webmaschine
FR2523603A1 (en) * 1982-03-19 1983-09-23 Cheboxarsky Mashstr Zavod Shuttleless loom control - uses hydraulic system to connect programmer to colour change unit
EP0190798A1 (fr) * 1985-02-04 1986-08-13 GebràœDer Sulzer Aktiengesellschaft Dispositif de changement de trame pour métiers à tisser
EP0340162A1 (fr) * 1988-04-25 1989-11-02 GebràœDer Sulzer Aktiengesellschaft Métier à tisser
EP0350447A1 (fr) * 1988-07-08 1990-01-10 GebràœDer Sulzer Aktiengesellschaft Procédé de commande de la tension de la chaîne et metier à tisser avec dispositif de tension de la chaîne

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUB20160421A1 (it) * 2016-02-01 2016-05-01 Rinaldo Sperotto PRESENTATRICE ROTATIVA per macchine da tessere a preselezione meccanica e comando elettronico

Also Published As

Publication number Publication date
DE59206475D1 (de) 1996-07-11
CN1070697A (zh) 1993-04-07
JPH07189077A (ja) 1995-07-25
EP0533617B1 (fr) 1996-06-05
RU2046856C1 (ru) 1995-10-27
US5247968A (en) 1993-09-28
CN1034596C (zh) 1997-04-16

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