EP0167829B1 - Einrichtung zur Überwachung der Schussfäden an einer Rundwebmaschine - Google Patents

Einrichtung zur Überwachung der Schussfäden an einer Rundwebmaschine Download PDF

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Publication number
EP0167829B1
EP0167829B1 EP85106950A EP85106950A EP0167829B1 EP 0167829 B1 EP0167829 B1 EP 0167829B1 EP 85106950 A EP85106950 A EP 85106950A EP 85106950 A EP85106950 A EP 85106950A EP 0167829 B1 EP0167829 B1 EP 0167829B1
Authority
EP
European Patent Office
Prior art keywords
weft
reed
weft yarn
weft thread
circular
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
EP85106950A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0167829A1 (de
Inventor
Franz X. Huemer
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT85106950T priority Critical patent/ATE51902T1/de
Publication of EP0167829A1 publication Critical patent/EP0167829A1/de
Application granted granted Critical
Publication of EP0167829B1 publication Critical patent/EP0167829B1/de
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
    • D03D37/00—Circular looms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/34—Weft stop motions

Definitions

  • the present invention relates to a device for monitoring the weft threads on a circular weaving machine, wherein the weft threads are unwound from the spool of the weaver that rotates in the shed along a circular path formed by a round reed, scanning means monitoring the weft thread in order to generate an electrical stop signal in the event of a weft fault .
  • Circular looms are generally known, in which a plurality of partial heald frames are arranged in a circle around the round reed of the machine and each carry a plurality of inner and outer healds for guiding a part of each of the two warp thread coulters distributed all around, which are used to form the weaving or traveling shed via revolving main shaft an opposing up and down alternating movement is given.
  • the weavers who are driven in rotation by the main shaft in the rotary shaft continuously feed the weft thread to be drawn off from the relevant bobbin in question into the traveling compartment.
  • the tubular fabric produced in this way is then pulled off and wound up flat.
  • Known devices of this type use for this purpose a lever on the shooter which is wrapped in a thread, which lever closes a contact on the shooter in the event of a thread break, whereupon a signal circuit on the shooter is closed, which signal A sensor on the reed is activated without contact.
  • this is first achieved by arranging on the weaving contactor a tilting bracket, which is acted upon by the drawn-off weft thread against the action of a restoring force, about an axis extending parallel to the weft thread bobbin, from which axis laterally arms project that arm parallel to the weft thread bobbin and from this resp. carry a ruler at a distance from the axis, which is at least partially wrapped in the weft thread and from which a switching arm directed against the reed protrudes, which in the event of a weft fault interacts with at least one signal transmitter part of a contactlessly activatable sensor system arranged on the reed.
  • Such a device is extremely simple and robust and is not subject to dust or any wear and tear. This device works safely at any shooter rotation speed and has a very high sensitivity and speed.
  • a machine base frame 1 on which a circular frame support 2 is supported, which has a round reed 3, a on / off switch 4 for the machine and further frame parts 5 for supporting shafts 6 wearing.
  • These shafts 6 are arranged in a known manner in a circle around the main shaft 8 of the machine and essentially form the shed-forming means of the machine.
  • the support 9 for the tissue withdrawal device is supported on the base frame 1, which is indicated here only by tissue withdrawal rollers 10.
  • a fabric spreader 14 is also effective in the trigger area.
  • the feed roller 15 for the warp threads on the left and the feed roller 16 for the warp threads on the right are visible on the circular loom shown.
  • warp threads 7 are divided into two sets of warp threads arranged all around and are drawn off in a known manner from groups of warp thread spools, not shown in any more detail.
  • One of these coulters is then raised to form the shed, while the other is guided downward from the height of the weaving plane by the so-called shed changing movement, so that a warp thread shed 7 'and a warp shed lower shed 7 "are created.
  • This so-called shed or traveling shed then runs at least one shooter 30, but usually several, around a horizontal circular path with a weft bobbin 31 (FIG.
  • stop signal 43 generated by a contactless sensor system 40 (FIG. 2) of a capacitive, inductive or magnetic type that can be activated by scanning means, the scanning means being supported on the respective weaver 30 by the weft thread 32 drawn off against the Effect of a restoring force act on tilting bracket 41, which acts as a switch in the event of a weft fault and interacts with at least one signal transmitter part 42 of the sensor system arranged on reed 3.
  • a contactless sensor system 40 FIG. 2 of a capacitive, inductive or magnetic type that can be activated by scanning means, the scanning means being supported on the respective weaver 30 by the weft thread 32 drawn off against the Effect of a restoring force act on tilting bracket 41, which acts as a switch in the event of a weft fault and interacts with at least one signal transmitter part 42 of the sensor system arranged on reed 3.
  • the tilt bracket 41 comprises a ruler 42 which extends parallel to the weft bobbin 31 and is at least partially wrapped around by the weft 32 that has been drawn off.
  • Arms 43 protrude from the ruler 42 at both ends and to the side of the weft bobbin 31, which pass into bearing pins 44 supported on the shooter 30, a switch arm 45 directed against the reed 3 protruding from the rocker arm 41.
  • the restoring force effective on the tilt bracket 41 can be generated by spring means or by torsional tension or by the dead weight of the tilt bracket.
  • the tilt bracket 41 preferably consists of a steel wire, the ruler 42 being able to carry a porcelain sleeve (not shown) for gentle thread guidance.
  • a device according to the invention for monitoring the weft threads on a circular loom results, which meets all the aforementioned requirements.
  • the measures described above permit easy retrofitting of already existing machines as well as the use of the weft thread monitoring device on other thread processing machines.
  • the tilt bracket 41 can be pivotally supported at another location, for example in the center of rotation of the weft bobbin 31.
  • the tilting bracket can carry one part of a light barrier, which part comes out of the area of a shielding screen on the shooter into the effective area of the other part of the light barrier on reed 3 in the event of a thread break, whereby a signal can be generated (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Woven Fabrics (AREA)
  • Jib Cranes (AREA)
  • Treatment Of Fiber Materials (AREA)
EP85106950A 1984-06-08 1985-06-05 Einrichtung zur Überwachung der Schussfäden an einer Rundwebmaschine Expired - Lifetime EP0167829B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85106950T ATE51902T1 (de) 1984-06-08 1985-06-05 Einrichtung zur ueberwachung der schussfaeden an einer rundwebmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2798/84A CH663226A5 (de) 1984-06-08 1984-06-08 Einrichtung zur ueberwachung der schussfaeden an einer rundwebmaschine.
CH2798/84 1984-06-08

Publications (2)

Publication Number Publication Date
EP0167829A1 EP0167829A1 (de) 1986-01-15
EP0167829B1 true EP0167829B1 (de) 1990-04-11

Family

ID=4241820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106950A Expired - Lifetime EP0167829B1 (de) 1984-06-08 1985-06-05 Einrichtung zur Überwachung der Schussfäden an einer Rundwebmaschine

Country Status (11)

Country Link
US (1) US4616681A (ja)
EP (1) EP0167829B1 (ja)
JP (1) JPH0639738B2 (ja)
KR (1) KR860000432A (ja)
AT (1) ATE51902T1 (ja)
BR (1) BR8502712A (ja)
CH (1) CH663226A5 (ja)
DE (1) DE3577111D1 (ja)
IN (1) IN162487B (ja)
PH (1) PH23984A (ja)
PT (1) PT80616B (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0290684U (ja) * 1988-12-30 1990-07-18
AT401065B (de) * 1994-10-20 1996-06-25 Starlinger & Co Gmbh Einrichtung zur überwachung der schussfäden an einer rundwebmaschine
KR100868871B1 (ko) * 2007-05-17 2008-11-14 구광일 원형직기의 위사 검지구 및 그 검지회로
AT507558B1 (de) * 2009-01-22 2010-06-15 Starlinger & Co Gmbh Vorrichtung zum regeln der schussbändchenspannung an einem webschützen, damit ausgestattete webschützen und rundwebmaschine
CN103031654A (zh) * 2011-09-29 2013-04-10 黄美昌 一种经线免碾压塑料圆织机
CN104452049B (zh) * 2014-12-14 2016-08-17 泰隆经纬(郑州)塑业有限公司 一种设有断线和缺线停机装置的编织袋圆纺机
AT518058B1 (de) 2016-04-22 2017-07-15 Hehenberger Reinhold Rundwebmaschine
EP3452648B1 (de) * 2016-05-04 2022-01-19 Innotec Lightweight Engineering & Polymer Technology GmbH Rundwebmaschine und verfahren zur herstellung eines hohlprofilartigen gewebes
CN118065034B (zh) * 2024-04-17 2024-06-18 德州学院 带有自动制动机构的圆织机

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2088045A (en) * 1935-03-23 1937-07-27 Saurer Ag Adolph Loom
CH215120A (fr) * 1939-07-18 1941-06-15 Anonyme Saint Freres Societe Métier à tisser circulaire, muni d'un casse-trame électrique.
US2433479A (en) * 1947-01-17 1947-12-30 Saint Freres Soc Weft stop motion for circular looms
US2512428A (en) * 1949-02-02 1950-06-20 Crompton & Knowles Loom Works Weft stop motion for narrow ware looms
FR1473899A (fr) * 1965-10-27 1967-03-24 Casse-trame pour métiers à tisser équipés de bobines de trame
FR1540347A (fr) * 1967-03-24 1968-09-27 Procédé pour déterminer le changement de la position d'un organe dans une pièce guidée se déplaçant à grande vitesse, et application aux machines à tisser
US3467149A (en) * 1967-05-26 1969-09-16 Heberlein & Co Ag Electronic device for surveying the presence of weft thread in weaving looms
FR1538492A (fr) * 1967-07-25 1968-09-06 Casse-trame pour navette de métier à tisser les rubans
CH480475A (de) * 1967-10-20 1969-10-31 Gueth & Wolf Elektronischer Schussfadenwächter für Webstühle
CH465529A (de) * 1968-07-02 1968-11-15 Saurer Ag Adolph Schussfadenwächter für Bandwebmaschinen
PH16162A (en) * 1978-08-25 1983-07-18 Torii Winding Machine Co A mechanism for stopping a circular loom during weaving operation

Also Published As

Publication number Publication date
PT80616B (pt) 1987-06-17
JPS61645A (ja) 1986-01-06
BR8502712A (pt) 1986-02-12
ATE51902T1 (de) 1990-04-15
PH23984A (en) 1990-02-09
JPH0639738B2 (ja) 1994-05-25
CH663226A5 (de) 1987-11-30
IN162487B (ja) 1988-06-04
KR860000432A (ko) 1986-01-28
EP0167829A1 (de) 1986-01-15
PT80616A (de) 1985-07-01
US4616681A (en) 1986-10-14
DE3577111D1 (de) 1990-05-17

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