EP0251997B1 - Fachbildevorrichtung für Webmaschine - Google Patents

Fachbildevorrichtung für Webmaschine Download PDF

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Publication number
EP0251997B1
EP0251997B1 EP87810312A EP87810312A EP0251997B1 EP 0251997 B1 EP0251997 B1 EP 0251997B1 EP 87810312 A EP87810312 A EP 87810312A EP 87810312 A EP87810312 A EP 87810312A EP 0251997 B1 EP0251997 B1 EP 0251997B1
Authority
EP
European Patent Office
Prior art keywords
lever
bearing
levers
articulations
distance
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
EP87810312A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0251997A1 (de
Inventor
Hans Peter
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 EP0251997A1 publication Critical patent/EP0251997A1/de
Application granted granted Critical
Publication of EP0251997B1 publication Critical patent/EP0251997B1/de
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices

Definitions

  • the invention relates to a shedding device for a weaving machine with a number of cam disks attached to a shaft, of which pivotally arranged roller levers, connecting rods connected thereto and pivotally mounted deflection levers connected to them, with a central bearing and with one leg each on the input and output side of one Deflecting lever can be driven, with at least one leg being cranked from the bearing of the deflecting lever, and pivot points for transmitting motion are located at the ends of the legs.
  • two cam disks are usually provided for driving a roller lever, which ensures a completely positive drive of the organs for shedding in the weaving machine.
  • the space required for a pair of cam disks and a roller lever in the axial direction of the drive shaft for the cam disks is greater than the space required at the articulation points on the output of the bell crank in the direction of the articulation axes.
  • Relatively slender transmission elements for the movement to the shafts of the weaving machine are arranged in the articulation points.
  • the shaft division i.e. the distance from a central plane of one shaft to the central plane of the adjacent shaft is normally as large as the division of the articulation points on the output of the bellcranks.
  • the bell crank levers are designed cranked by shed art devices according to the prior art in the region of their legs between the bearing of the bell crank and the pivot point on the output.
  • the offset is all the more pronounced the further the deflection lever is located outside the center of a group of levers of a shedding device lying next to one another.
  • Such an arrangement is known for example from German Patent 24 41 353.
  • this object is achieved in that the cranking of the legs is carried out in such a way that the deflection levers in the package represent a fan in their view perpendicular to their axis, in which the division of the articulation points on the driven side is smaller than the distance from a center of the bearing to other and in which the distance is smaller than the division of the articulation points on the drive side, such that the connecting lines between the centers of the articulation points of a lever and the center point of the lever bearing form angles with the bearing axis which differ by a maximum of 8 ° . Ideally, these connecting lines form a straight line.
  • the design of the bellcranks according to the invention allows wear-free operation, particularly of these parts of the shedding device, with little need for lubricant.
  • the shaft 11a, the axis 6 of the roller levers 7 and the axis II of the bell crank 9 are mounted in the housing 1a of the shedding device I.
  • the shaft lia, on which a number of cams 2, 3 sit for the bell crank 9, is driven by the main drive of the weaving machine 30, not shown.
  • the rollers 4 and 5 of a single deflecting lever 9 run on the cam plate 2 or the complementary cam plate 3.
  • the rotation of the drive shaft lia causes the deflecting levers 7 lying in a row next to one another to be pivoted about the axis 6 according to the arrow at 6.
  • the movement is transmitted by push rods 8 to the deflection levers 9, on each of which a leg 12 or 13 extends from a lever eye 10 to the articulation points 14a on the drive side of the deflection lever 9 and 14b on the driven side.
  • a pivot rod 15 is articulated in the articulation point 14b and is rigidly connected to a rocker 17 via a coupling 16.
  • Their oscillating movement is transmitted to the lifting rod 24 in the circuit board 21 by means of a deflection lever 20 by means of the legs 19a and 19b.
  • the bellcranks 20 are mounted on an axis 18 within the weaving machine.
  • the shafts 22 are rigidly coupled to the lifting plates 21, in which strands 23 hang for forming the warp threads of the weaving machine 17.
  • the axis II for the bell crank 9 is shown in its entire length. It will be in the housing la supported. Thrust washers 26 and 27 are mounted between the housing la and the deflection levers 9a, 9b ... 9k. The axis II is supported by the intermediate bearing 25 in the housing la. Due to the position of the section II-II, the legs 12, 13 of the deflection levers are shown pivoted about the axis Ilb such that the axes of the articulation points 14a, 14b together with the bearing axis Ilb of the deflection levers 9 lie in the plane of the drawing.
  • the connecting lines between the centers M 2 and Ms of the articulation points 14a, 14b with the center M 1 of a lever eye 10 of the bell crank 9b form a straight line here.
  • the angles of the connecting lines c, d between the centers M 2 , M a of the articulation points 14a, 14b and the center points Mi of the lever eyes differ only slightly from 90 ° due to the selected geometry, which is why the legs of the bellcranks can be made relatively slim. Because of the small distance between the legs of the deflecting levers, it is expedient that their boundary surfaces form parts of cone shells in the axial direction, the generatrices of which each form boundary lines in the section of a lever leg 12 or 13 in section in FIG. 2 are visible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP87810312A 1986-07-04 1987-05-25 Fachbildevorrichtung für Webmaschine Expired EP0251997B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2721/86A CH670113A5 (ru) 1986-07-04 1986-07-04
CH2721/86 1986-07-04

Publications (2)

Publication Number Publication Date
EP0251997A1 EP0251997A1 (de) 1988-01-07
EP0251997B1 true EP0251997B1 (de) 1989-09-27

Family

ID=4240116

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87810312A Expired EP0251997B1 (de) 1986-07-04 1987-05-25 Fachbildevorrichtung für Webmaschine

Country Status (7)

Country Link
US (1) US4817676A (ru)
EP (1) EP0251997B1 (ru)
JP (1) JPS6321947A (ru)
BR (1) BR8703383A (ru)
CH (1) CH670113A5 (ru)
DE (1) DE3760625D1 (ru)
SU (1) SU1595346A3 (ru)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1001921A3 (nl) * 1988-12-27 1990-04-10 Picanol Nv Inrichting voor het aandrijven van weefkaders bij weefmachines.
FR2679264B1 (fr) * 1991-07-15 1993-12-03 Staubli Ets Mecanisme de tirage a leviers oscillants interpose entre une mecanique d'armure et les cadres de lisses d'un metier a tisser.
IT1255829B (it) * 1992-09-24 1995-11-17 Giobbe Srl Leva di trasmissione del moto, particolarmente per macchine tessili, avente circuito di lubrificazione interno con alimentazione centralizzata.
IT1270680B (it) * 1994-10-27 1997-05-07 Somet Soc Mec Tessile Dispositivo di guida rapido degli attaccalicci in un telaio di tessitura
GB2437229A (en) * 2005-04-07 2007-10-17 Tennant Co Hard and soft floor surface cleaner
US7389751B2 (en) * 2006-03-17 2008-06-24 Ford Global Technology, Llc Control for knock suppression fluid separator in a motor vehicle
CN103352289A (zh) * 2013-08-01 2013-10-16 上海淳瑞织造机械科技有限公司 一种用于喷气织机的连杆防护装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US889971A (en) * 1907-06-08 1908-06-09 Levi E Salisbury Harness-motion device for looms.
FR1015605A (fr) * 1948-12-22 1952-10-16 Dispositif pour supporter et actionner les cadres des lices, dans les métiers pour tissage
CH581213A5 (ru) * 1974-07-29 1976-10-29 Sulzer Ag
JPS5717097A (en) * 1980-07-03 1982-01-28 Fuji Electric Co Ltd Selective instructing device

Also Published As

Publication number Publication date
SU1595346A3 (ru) 1990-09-23
EP0251997A1 (de) 1988-01-07
US4817676A (en) 1989-04-04
JPS6321947A (ja) 1988-01-29
CH670113A5 (ru) 1989-05-12
JPH0357216B2 (ru) 1991-08-30
DE3760625D1 (en) 1989-11-02
BR8703383A (pt) 1988-03-22

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