EP0083676B1 - Schusssuchvorrichtung für Webmaschinen - Google Patents

Schusssuchvorrichtung für Webmaschinen Download PDF

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Publication number
EP0083676B1
EP0083676B1 EP82100152A EP82100152A EP0083676B1 EP 0083676 B1 EP0083676 B1 EP 0083676B1 EP 82100152 A EP82100152 A EP 82100152A EP 82100152 A EP82100152 A EP 82100152A EP 0083676 B1 EP0083676 B1 EP 0083676B1
Authority
EP
European Patent Office
Prior art keywords
planet
indexing
planetary
annulus
motions
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
EP82100152A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0083676A1 (de
Inventor
August Binninger
Josef C/O Sulzer Brothers Inc. Kieliger
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.)
Sulzer AG
Original Assignee
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of EP0083676A1 publication Critical patent/EP0083676A1/de
Application granted granted Critical
Publication of EP0083676B1 publication Critical patent/EP0083676B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/06—Driving, starting, or stopping arrangements; Automatic stop motions using particular methods of stopping
    • D03D51/08—Driving, starting, or stopping arrangements; Automatic stop motions using particular methods of stopping stopping at definite point in weaving cycle, or moving to such point after stopping

Definitions

  • the invention relates to a weft search device for weaving machines, comprising a planetary gear, which is arranged between the main drive shaft of the loom and the weaving units, an auxiliary gear cooperating with the planetary gear, which drives the units when searching for weft, and an indexing device, which cooperates with the auxiliary gear, for controlling the number of Revolutions of the units when looking for a shot.
  • the weft monitor If a weft is entered incorrectly during weaving, the weft monitor generates a signal that initiates the immediate switching off of the drive motor and the braking of the weaving machine to a standstill. The faulty weft thread is then removed from the open shed. In order to be able to insert a weft thread into the opened shed again, it is necessary that the various units of the weaving machine are moved back or forward by one weft, depending on their task and design. This work is commonly referred to as shot hunting.
  • a known device of this type (FR-OS 2 357 667) has the disadvantage that it has large dimensions due to the design of the gears, which is a considerable disadvantage in weaving machines, where the space requirements are always very precarious.
  • the invention has for its object to provide a shot search device of the type defined, which has only small dimensions. According to the invention, the object is achieved by the features specified in the characterizing part of claim 1.
  • the subclaims relate to advantageous further developments.
  • a main shaft 1 of a weaving machine drives a chain wheel 4 via a chain wheel 2 and a chain 3.
  • the sprocket 4 is attached to a shaft 5 of a planetary gear 6.
  • An driven shaft 7 of the planetary gear has a double sprocket 8 with two sprockets 9 and 10 for driving a travel unit 11 and 12.
  • the units 11 and 12 can, for. B. the goods circuit or the shed forming device of the loom.
  • a third unit can be the color control device, which is also driven by the sprocket or then by the shed forming device.
  • the planetary gear 6 causes the driven sprocket and the driven double sprocket 8 to have the same direction of rotation and the same speed during weaving operation.
  • the planetary gear can thus be easily installed in an existing weaving machine. This is accomplished as follows.
  • the sprocket 4 drives the shaft 5 of the planetary gear 6 with a certain direction of rotation and speed.
  • the shaft 5 drives, via a web 13 (FIG. 2) with a bolt 14, a planet gear 15 rotatably mounted thereon, which rolls in a fixed ring gear 16 and thereby drives a sun gear 17.
  • the sun gear 17 in turn drives a planet gear 18 which has the same number of teeth as the planet gear 15.
  • the planetary gear 6 also has a worm gear 19 with a worm 20 and a worm wheel 21.
  • the worm wheel 21 is provided with an internal ring gear 22, with the same number of teeth as the ring gear 16.
  • the worm wheel 21 is locked by an indexing pin 23, since this is locked in a recess 24 on its circumference.
  • the worm gear is thus the fixed ring gear for the planet gear 18.
  • the planet gear 18 drives the driven shaft 7 with the double sprocket 8 by means of a pin 25 fastened therein via a web 26. Since the two planetary gear sets 15-16-17 and 17-18-22 are identical and driven in opposite directions, the chain wheels 4 and 8 have the same direction of rotation and the same speed.
  • An indexing device 30, which monitors the rotation of the worm wheel 21, is assembled with the planetary gear 6.
  • the indexing device 30 is actuated by an indexing motor 31, on the shaft of which a control disk 32 with an inner control cam 33 is fastened.
  • a roller 34 is guided on the control cam 33 and is mounted on the indexing pin 23 already mentioned.
  • the worm wheel 21 has a diametrically located cutout 35 (FIG. 3a), into which the indexing pin 23 can engage depending on the position of the worm wheel.
  • the position of the indexing pin 23 inside and outside the recesses 24 and 35 is detected by two sensors 36 and 37 in cooperation with a switching flag 38 on the indexing pin.
  • control disk 32 has made a complete revolution and the indexing motor 31 is now switched off by the control device 40.
  • the control disk 32 has released the indexing bolt 23, which, however, cannot snap into the recess 24 of the worm wheel 21 despite the pressure of the spring 41, since this has been rotated.
  • the rotation with the opposite direction of rotation of the double chain wheel 8 must also be exactly one revolution. How many revolutions the worm wheel 21 has to make depends on the reduction ratio of the planetary gear set 17-18-22. It is assumed here that the worm wheel 21 has to make one and a half revolutions; however, other translations are possible. For this purpose, the worm wheel 21 is provided with the recess 35 already mentioned. In order to prevent the indexing bolt 23 from snapping into the second recess 35 prematurely, a second planetary gear set 45 is provided in the housing of the planetary gear 6.
  • the planetary gear set 45 is formed by a second internal ring gear 46 as a ring gear in the worm gear 21 and a planet gear 47 with the same number of teeth as the planet gear 18.
  • the planet gear 47 rolls on a fixed sun gear 48, which has the same number of teeth as the sun gear 17.
  • Das Planet gear 47 drives an indexing disk 50 via a pin 49.
  • This indexing disk 50 thus rotates synchronously with the double sprocket 8 when searching for a shot. that is, one revolution of this indexing disk corresponds to one revolution of the double sprocket.
  • the indexing disk 50 is provided with a cutout 51 and is locked when the indexing pin 23 is snapped into this cutout, which is the case in weaving operation.
  • FIGS. 3a and 3b The interaction of worm wheel 21 and indexing disk 50 during the search for a shot is shown in FIGS. 3a and 3b, FIGS. 4a and 4b, FIGS. 5a and 5b and FIGS. 6a and 6b.
  • 3a and 3b show the position at the start of the shot search, when the indexing pin 23 is pulled out of the recesses 24 and 51 by the control disk 32 and then the worm wheel 21 and also the indexing disk 50 begin to rotate.
  • FIGS. 6a and 6b show the position after the worm wheel 21 has rotated through 540 ° or one and a half revolutions.
  • the recesses 35 and 51 now enable the indexing pin 23 to snap into place under the pressure of the spring 41.
  • the indexing disk 50 has then made one revolution, as has the double chain wheel 8. This corresponds to a turning back of the units 11 and 12 by one shot.
  • the indexing device can also be designed such that the indexing of the worm wheel of the worm gear is only monitored by the indexing disk 50.
  • the worm wheel then has no cutouts on the circumference and the indexing pin 23 only engages in the cutout 51 in the indexing disk 50. After the indexing bolt 23 has snapped in, the worm gear is blocked via the fixed sun gear 48, the fixed planet gear 47 and the ring gear 46.
  • worm gear 19 instead of the worm gear 19, another gear such. B. one can be used with spur gears; the drive wheel then stands at the location of the worm wheel 21.
  • a chain drive consisting of the chain wheels 61, 62 and 63 and a roller chain 64 drives two planetary gears 65 and 66.
  • the driven shafts 67 and 68 of these planetary gears are with a sprocket 69 and 70 verses hen.
  • the sprocket 69 is part of a chain drive 71 for driving an assembly 72.
  • the sprocket 70 is part of a chain drive 73 for driving an assembly 74 of the weaving machine.
  • the planetary gear 65 is provided with an indexing device 75 with an indexing motor 75 ', the planetary gear 66 with an indexing device 76 with an indexing motor 76'.
  • a servomotor 77 is further assigned to the planetary gear 65, and a servomotor 78 is assigned to the planetary gear 66.
  • the structure of the planetary gear, indexing devices and servomotors corresponds to that described for FIGS. 1 and 2.
  • a common control device 80 for controlling the indexing devices 75 and 76 and the servomotors 77 and 78 is provided, which is actuated by means of a switch 90.
  • the control device 80 has a program memory 80 'and 80 "for each of the units 72 and 74 with data for the movements which it must carry out during the shot search process. Each unit is thus independent of others in the number of forward and backward rotations which occur at the weft search must be carried out until they have reached the position required for the weaving machine to continue weaving.
  • the control device 80 is switched on by means of the switch 90, the programs of which start to run for the movements to be carried out by the units 72 and 74.
  • the indexing motors 75 'and 76' are switched on for both indexing devices 75 and 76, and the indexing devices are thereby blocked.
  • the actuators 77 and 78 are switched on, which now set the worm gear in each planetary gear 65 and 66 in motion in such a way that the chain wheels 69 and 70 have a sense of rotation and a number of revolutions, required to bring the units into the correct working position with regard to to bring the loom.
  • the servomotors are switched off at the end of the program.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP82100152A 1981-12-16 1982-01-12 Schusssuchvorrichtung für Webmaschinen Expired EP0083676B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8018/81 1981-12-16
CH801881 1981-12-16

Publications (2)

Publication Number Publication Date
EP0083676A1 EP0083676A1 (de) 1983-07-20
EP0083676B1 true EP0083676B1 (de) 1985-08-21

Family

ID=4333876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100152A Expired EP0083676B1 (de) 1981-12-16 1982-01-12 Schusssuchvorrichtung für Webmaschinen

Country Status (6)

Country Link
US (1) US4463781A (cs)
EP (1) EP0083676B1 (cs)
JP (1) JPS58104249A (cs)
CS (1) CS244122B2 (cs)
DE (1) DE3265479D1 (cs)
SU (1) SU1212329A3 (cs)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58186641A (ja) * 1982-04-24 1983-10-31 株式会社豊田自動織機製作所 織機の経糸送り出し装置
US4669510A (en) * 1983-10-07 1987-06-02 Textilma Ag Process for operation of a weaving machine as well as application of the process
EP0327613B1 (de) * 1987-08-12 1992-09-16 BORISCH, Fred Webmaschine mit einer mechanischen schaftmaschine
DE19617180A1 (de) * 1996-04-29 1997-10-30 Oberdorfer F Siebtech Gmbh Antriebsverbindung zwischen einer Webmaschine und ihrer Fachbildungseinrichtung
CN104153107B (zh) * 2013-11-20 2016-01-20 江苏友诚数控科技有限公司 一种织机找纬方法
CN105297236B (zh) * 2015-10-30 2017-03-22 浙江康立自控科技有限公司 织机反向找纬控制方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357667A1 (fr) * 1976-07-08 1978-02-03 Amigues Lucien Perfectionnements aux dispositifs pour la recherche du pas associes aux ratieres et autres mecaniques de tissage

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB502538A (en) * 1936-11-10 1939-03-17 Kurt Metzler Improvements in and connected with driving and reversing mechanism for weaving looms
GB732895A (en) * 1951-02-28 1955-06-29 Peter Walker Blackburn Ltd Safety device for jacquard mechanism
AT287607B (de) * 1968-05-29 1971-01-25 Zangs Ag Maschf Schußfadensuchvorrichtung
BE763697A (nl) * 1971-03-03 1971-08-02 Picanol Nv Aandrijfinrichting voor weefgetouwen.
SU433257A1 (ru) * 1971-04-02 1974-06-25 Балашихинский филиал Подмосковье шерст ных детских тканей Устройство для розыска "раза" к ткацкомустанку
SU724611A1 (ru) * 1974-08-16 1980-03-30 Kaplun Emanuil A Механизм розыска "раза" к ткацкому станку
IT1025047B (it) * 1974-10-18 1978-08-10 Fimtessile Spa Fabbrica Italia Dispositivo per eseguire automatica mente in telai di tessitura la ricerca di trame rotte con eliminazione delle stesse a passo interamente aperto e la rifasatura con la macchina di armatura

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2357667A1 (fr) * 1976-07-08 1978-02-03 Amigues Lucien Perfectionnements aux dispositifs pour la recherche du pas associes aux ratieres et autres mecaniques de tissage

Also Published As

Publication number Publication date
US4463781A (en) 1984-08-07
JPS58104249A (ja) 1983-06-21
EP0083676A1 (de) 1983-07-20
SU1212329A3 (ru) 1986-02-15
DE3265479D1 (en) 1985-09-26
CS244122B2 (en) 1986-07-17
CS908682A2 (en) 1985-08-15

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