EP0119121A1 - Verfahren und Vorrichtung zum Verhüten von Gewebefehlern infolge Webmaschinenstillstand - Google Patents

Verfahren und Vorrichtung zum Verhüten von Gewebefehlern infolge Webmaschinenstillstand Download PDF

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Publication number
EP0119121A1
EP0119121A1 EP84400332A EP84400332A EP0119121A1 EP 0119121 A1 EP0119121 A1 EP 0119121A1 EP 84400332 A EP84400332 A EP 84400332A EP 84400332 A EP84400332 A EP 84400332A EP 0119121 A1 EP0119121 A1 EP 0119121A1
Authority
EP
European Patent Office
Prior art keywords
regulator
loom
fabric
turns
stop
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
EP84400332A
Other languages
English (en)
French (fr)
Other versions
EP0119121B1 (de
Inventor
Yves Juillard
Guy Gosciniak
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.)
Alsacienne de Construction de Material Textile
Alsacienne de Constructions Mecaniques SA
Original Assignee
Alsacienne de Construction de Material Textile
Alsacienne de Constructions Mecaniques SA
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 Alsacienne de Construction de Material Textile, Alsacienne de Constructions Mecaniques SA filed Critical Alsacienne de Construction de Material Textile
Publication of EP0119121A1 publication Critical patent/EP0119121A1/de
Application granted granted Critical
Publication of EP0119121B1 publication Critical patent/EP0119121B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/20—Take-up motions; Cloth beams
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/002—Avoiding starting marks

Definitions

  • the present invention relates to a method and a device for eliminating, on fabrics, the defects consecutive to the stopping of the weaving machine, in particular when the latter had to be stopped to remove or repair a weft thread or a broken or defective chain.
  • the invention applies to weaving looms of the shuttleless type in which the insertion of the weft is carried out by means of at least one rigid or flexible weft holder (called “needle” or “lance”), or by means of a jet of air or water, or by means of a launcher or a projectile.
  • needle rigid or flexible weft holder
  • the invention is of particular interest for trades of this type, at high speed.
  • Positive call regulators are known, the function of which is to advance the fabric during weaving and to cause it to retreat by the same amount when removing one or more broken picks.
  • the object of the present invention is to remedy this drawback and makes it possible to eliminate fabric defects resulting from a stoppage of the machine.
  • the subject of the invention is a method which consists in interposing between the drive control of the call regulator and the input shaft of the call regulator a lost stroke connection allowing the loom to make at least one cycle in reverse without the call regulator rolling back the fabric.
  • the invention also relates to a method for eliminating stopping faults, consecutive to a weft or warp repair, which consists in carrying out a determined sequence of reverse and forward movement of the machine during at least some of which the fabric remains without moving.
  • the subject of the invention is finally a device for regulating the tissue call which comprises, between the drive control and the input shaft of the regu lator, a lost-stroke link system separating for at least a fraction of a turn and, preferably, for at least one turn, said control of said shaft after a reverse operation of the machine.
  • the driving in front or behind of the input shaft of the regulator is carried out by means of one or more tocs, which makes it possible to obtain according to the order report and also depending on the number of knocks a certain number of fabric rest turns when changing the direction of the call regulator control.
  • FIG. 1 There is shown diagrammatically in FIG. 1 a fabric machine without shuttle with: the layers of upper 2 and lower warp threads 4; comb 6; a weft thread 8; the fabric formed 10; the fabric take-up cylinder 12; the pressure cylinder 14; the barrel 16 on which the fabric is wound.
  • the call cylinder 12 is driven by the output shaft 18 of the transmission mechanism called "fabric call regulator" 20 whose input shaft 22 is driven from a shaft 24, which can be the primary of the machine or an auxiliary shaft rotating shaft in s nchro- there nism with the main shaft.
  • a pulley 26 is wedged on the shaft 24 and therefore rotates in synchronism with the loom in forward or reverse gear, said pulley 26 rotating in the ratio one / one with the crankshaft. It transmits the movement to a toothed belt 28 which drives an idler pulley 30 having a pitch diameter twice that of the pulley 26, the speed ratio is therefore one in two.
  • This command can be done by any known transmission.
  • the idler pulley 30 rotates freely on the bearing 32 mounted on the input shaft 22 of the regulator ( Figures 2 and 3).
  • the idler pulley 30 carries at least one drive stop 34.
  • a trainer 36, carrying a drive finger or toc 38 is keyed onto the input shaft 22 of the regulator.
  • a pitch search must be carried out, i.e. after stopping, go back one or more cycles back to the configuration of the crowd where the incident occurred.
  • the regulator can be driven backwards, on one or more turns backwards, but without causing the fabric to move.
  • the system according to the invention can be applied to all types of known call regulators, such as positive regulators or simple regulators which have been mentioned above, but also to regulators provided with a known device, designated under the term "stop of the regulator", allowing, in normal operation of the loom, to advance the fabric only one pick out of two, to obtain a particular aspect of the fabric, the regulator being therefore, conversely, stopped every second pick.
  • stop of the regulator allowing, in normal operation of the loom, to advance the fabric only one pick out of two, to obtain a particular aspect of the fabric, the regulator being therefore, conversely, stopped every second pick.
  • FIG. 8 illustrates the succession of the sequences of the method in the case of stopping on a break in frame.
  • the layers of upper 2 and lower warp threads 4, the comb 6 and the weft threads a, b, c have already been inserted to form the fabric.
  • the fabric is called from right to left.
  • the loom On the signal from the breakage detector, the loom is stopped automatically and it comes to a stop one turn after the breakage detection (sequence 2) in the open crowd position.
  • the fabric To put the fabric in the right place and fill the void left by the removal of the defective pick, before starting with a new pick, the fabric must be rolled back one step.
  • the stop 34 which had come into contact by its face 34b with the toc 38 drives the latter in rotation by one turn. back.
  • the regulator therefore causes the tissue to move backward - by one step as seen in sequence 5 where pick b occupies the same position as in sequence 1.
  • the machine is then ready to restart, but as we have seen previously, on fast looms, the insertion of the first frame should only be done with the second flap when the machine is at full speed.
  • Sequence 6 shows the first lap in front of the machine, without frame insertion, which crosses the crowd on frame b while sequence 7 shows the second lap in front of the machine where the new frame a is inserted in a crowd having exactly the same configuration as in sequence 1, with the fabric occupying the same position as before breakage.
  • the frame break detector automatically stops the machine and makes it automatically make two turns back.
  • the operator arrives in front of his stopped machine, it is in the position of sequence 4. It suffices to remove the wrong frame, then to press once the push button step by step backward ( sequence 5) and finally restart the machine normal (sequences 6, 7).
  • sequence 1 a chain breakage has been detected, the loom stops one lap later following sequence 2, the control of the fabric call regulator turns in the opposite direction for two turns with the crowd uncrossing mechanism , the idler pulley 30 with its stop 34 releasing toc 38 rotates in a vacuum and does not cause the regu - freezer call for two revolutions of the machine, (see sequences 3 and 4).
  • the two turns to be moved back by the crowd, registered in the program, are used to compensate for the additional turn made by the machine from the detection of breakage at full stop and the turn to be made by the machine without inserting a frame .
  • Sequence 5 shows the crowd crossing and the start of the machine by a first flap without weft insertion and the sequence this 6 shows the insertion of the frame on the second leaf stroke and at full speed after the repair.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP84400332A 1983-03-09 1984-02-17 Verfahren und Vorrichtung zum Verhüten von Gewebefehlern infolge Webmaschinenstillstand Expired EP0119121B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8303824A FR2542335B1 (fr) 1983-03-09 1983-03-09 Procede et dispositif pour supprimer, sur les tissus, les defauts consecutifs a l'arret de la machine a tisser
FR8303824 1983-03-09

Publications (2)

Publication Number Publication Date
EP0119121A1 true EP0119121A1 (de) 1984-09-19
EP0119121B1 EP0119121B1 (de) 1986-07-23

Family

ID=9286647

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84400332A Expired EP0119121B1 (de) 1983-03-09 1984-02-17 Verfahren und Vorrichtung zum Verhüten von Gewebefehlern infolge Webmaschinenstillstand

Country Status (5)

Country Link
EP (1) EP0119121B1 (de)
JP (1) JPS59168152A (de)
BR (1) BR8401054A (de)
DE (1) DE3460316D1 (de)
FR (1) FR2542335B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167830A1 (de) * 1984-06-08 1986-01-15 Franz X. Huemer Antriebseinrichtung an einer Rundwebmaschine
EP0567428A1 (de) * 1992-04-22 1993-10-27 Sulzer RàœTi Ag Verfahren zum Starten einer Webmaschine und Webmaschine zur Durchführung des Verfahrens
US5335698A (en) * 1992-04-22 1994-08-09 Sulzer Rueti Ag Method of restarting a loom after stoppage
EP0629725A1 (de) * 1993-06-15 1994-12-21 Sulzer RàœTi Ag Verfahren zum Starten einer Webmaschine und Webmaschine zur Durchführung des Verfahrens
GB2360922A (en) * 2000-03-31 2001-10-03 Http Hypothermia Therapy A heating device for surface heating of a patient's body
CN109680391A (zh) * 2019-01-29 2019-04-26 山东日发纺织机械有限公司 一种织机电子卷取控制方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977274C (de) * 1951-03-20 1965-09-09 Siemens Ag Vorrichtung fuer den Antrieb von Webstuehlen
FR2209000A2 (de) * 1972-10-16 1974-06-28 Verdol Sa
FR2246668A2 (de) * 1973-10-05 1975-05-02 Verdol Sa

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977274C (de) * 1951-03-20 1965-09-09 Siemens Ag Vorrichtung fuer den Antrieb von Webstuehlen
FR2209000A2 (de) * 1972-10-16 1974-06-28 Verdol Sa
FR2246668A2 (de) * 1973-10-05 1975-05-02 Verdol Sa

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167830A1 (de) * 1984-06-08 1986-01-15 Franz X. Huemer Antriebseinrichtung an einer Rundwebmaschine
EP0567428A1 (de) * 1992-04-22 1993-10-27 Sulzer RàœTi Ag Verfahren zum Starten einer Webmaschine und Webmaschine zur Durchführung des Verfahrens
US5335698A (en) * 1992-04-22 1994-08-09 Sulzer Rueti Ag Method of restarting a loom after stoppage
EP0629725A1 (de) * 1993-06-15 1994-12-21 Sulzer RàœTi Ag Verfahren zum Starten einer Webmaschine und Webmaschine zur Durchführung des Verfahrens
GB2360922A (en) * 2000-03-31 2001-10-03 Http Hypothermia Therapy A heating device for surface heating of a patient's body
CN109680391A (zh) * 2019-01-29 2019-04-26 山东日发纺织机械有限公司 一种织机电子卷取控制方法

Also Published As

Publication number Publication date
EP0119121B1 (de) 1986-07-23
FR2542335B1 (fr) 1985-08-02
JPS59168152A (ja) 1984-09-21
BR8401054A (pt) 1984-10-16
DE3460316D1 (en) 1986-08-28
FR2542335A1 (fr) 1984-09-14

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