EP0812937B1 - Litzenkontrollvorrichtung für Webmaschinen - Google Patents

Litzenkontrollvorrichtung für Webmaschinen Download PDF

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Publication number
EP0812937B1
EP0812937B1 EP97109313A EP97109313A EP0812937B1 EP 0812937 B1 EP0812937 B1 EP 0812937B1 EP 97109313 A EP97109313 A EP 97109313A EP 97109313 A EP97109313 A EP 97109313A EP 0812937 B1 EP0812937 B1 EP 0812937B1
Authority
EP
European Patent Office
Prior art keywords
frames
disk
shaft
spindles
frame
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
EP97109313A
Other languages
English (en)
French (fr)
Other versions
EP0812937A1 (de
Inventor
Gian Luigi Cremonesi
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.)
FIMTEXTILE SpA
Original Assignee
FIMTEXTILE SpA
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Filing date
Publication date
Application filed by FIMTEXTILE SpA filed Critical FIMTEXTILE SpA
Publication of EP0812937A1 publication Critical patent/EP0812937A1/de
Application granted granted Critical
Publication of EP0812937B1 publication Critical patent/EP0812937B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D03C5/02—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices operated by rotating cams

Definitions

  • the present invention refers to a device to control the heald frames of looms in cloth weaving (that is, when the loom is weaving a simple weft and warp cloth).
  • the present invention proposes to solve this problem by controlling the heald frames of looms in cloth weaving with a fully original device.
  • Said device comprises a shaft, caused to rotate by the loom, which controls at least two driving members consisting of two disks - one for each member - fixed to said shaft and inclined by equal and opposed angles, and of two corresponding frames, mounted on spindles perpendicular to the shaft and each cooperating with the periphery of its own disk so as to be oscillated thereby, said spindles supporting cross arms onto which there are mounted pairs of connecting rods, each controlling a heald frame.
  • Said frames can be C-shaped, or ring shaped, while said arms supported by the spindles are of different length, according to the strokes having to be imparted on the heald frames which each of them controls through the respective pair of connecting rods.
  • the device of the present invention to control the heald frames Q of a loom comprises a shaft 1, caused to rotate by the loom, and at least a pair of members OA, associated to said shaft 1, to drive said frames Q by way of connecting rods B.
  • the shaft 1 carries a disk 2, fixed thereto with an inclination forming an angle ⁇ .
  • the angle of inclination of the disk 2 in the first member OA is equal but opposed to that of the disk 2 in the second member OA (see fig. 1).
  • a frame 3 which, in the embodiments shown, is ring shaped.
  • the frame 3 is mounted rotating on opposed spindles 4 and 5, the spindle 5 extending to support a plurality of cross arms 6.
  • the frame 3 is slidably engaged with the corresponding disk 2.
  • Said engagement can be obtained, either through pairs of pins 7 engaging, in the manner of a fork, the periphery of the disk 2 with the interposition of rolling bearings 8 (embodiment of fig. 2), or by means of an intermediate ring 9, rotatably mounted along the periphery of the disk 2 with the interposition of a rolling bearing 10, and of a pair of opposed pins 11 emerging from said ring 9 and mounted revolving into seats of the frame 3, with the interposition of ball bearings 12 (embodiment of figs. 3 and 4).
  • Each driving member OA is positioned inside a case 13, comprising seats with needle bearings 14 into which rotate the spindles 4 and 5 of the frame 3.
  • the case 13 also supports the shaft 1 which rotates on bearings 15.
  • a pair of connecting rods B is mounted on each of the cross arms 6 (figs. 1 and 4) of the driving members OA of the aforedescribed device, each of said rods B controlling a heald frame Q; said arms 6 are of different length, according to the strokes having to be imparted on the heald frames Q which each of them controls through the respective pair of connecting rods B.
  • the rotation of the shaft 1 and of the disks 2 fixed thereto and inclined by equal and opposed angles in the two driving members OA determines - due to the continuous change of position in space of the disks 2, between two extreme positions, for example those shown in full lines and in dashed lines in fig. 3 - a constantly oscillating movement of the frames 3 of said driving members about the spindles 4, 5.
  • the cross arms 6, supported by the spindles 5, are thus in turn caused to perform a rapid oscillating movement, which leads, through the connecting rods B, to a corresponding up and down motion of the frames Q. More precisely, one of the connecting rods B of each pair causes the lifting of a frame and the simultaneous lowering of the frame adjacent thereto, and vice versa, in a rapid sequence, as required for cloth weaving in a loom.
  • the device according to the invention realizes a compact and efficient mechanism, with minimum inertias, a few simple articulations and limited frictions, which ensures an extremely precise control, with a reduced maintenance, and a low noise even at the highest speeds. It is hence apt to solve in a fully satisfactory way the problems being faced.
  • the driving members OA - with the disks fixed to the shaft of the device and inclined by equal and opposed angles - could be more than two (or could even be just one), depending on the size in width of the heald frames to be controlled.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Woven Fabrics (AREA)

Claims (8)

  1. Vorrichtung zum Steuern der Schäfte von Webmaschinen bei dem Weben von Tüchern, mit einer Welle (1), die von der Webmaschine zur Drehung veranlaßt wird, wobei die Welle (1) wenigstens zwei Antriebselemente (OA) steuert, die aus zwei Scheiben (29) - eine für jedes Element (OA) -, die auf der Welle (1) befestigt sind und um gleiche und gegenüberliegende Winkel geneigt sind, und zwei entsprechende Rahmen (3), die auf den Spindeln (4, 5) senkrecht zu der Welle (1) montiert sind und jeweils mit dem umfang der eigenen Scheibe (2) zusammenwirkt, um mit dieser zu schwingen, besteht, wobei die Spindeln (5) Querarme (6) tragen, auf denen Paare von Verbindungsstangen (B) montiert sind, die jeweils einen Schaft (Q) steuern.
  2. Vorrichtung nach Anspruch, wobei die Rahmen (3) ringförmig sind.
  3. Vorrichtung nach Anspruch 1, wobei die Rahmen (3) C-förmig sind.
  4. Vorrichtung nach den Ansprüchen 1 bis 3, wobei die Arme (6), die von den Spindeln (5) getragen werden, von unterschiedlicher Länge sind, entsprechend den Hüben, die auf die Schäfte (Q) aufzubringen sind, wobei jeder von diesen über das jeweilige Paar von Verbindungsstangen (B) wirkt.
  5. Vorrichtung nach einem der Ansprüche 1 bis 4, wobei jeder der Rahmen (3) mit der entsprechenden Scheibe (2) über Paare von Stiften (7) zusammenwirkt, die nach Art und weise einer Gabel die Peripherie der Scheibe unter Zwischenschaltung von Kugellagern (8) ergreift.
  6. Vorrichtung nach einem der Ansprüche 1 bis 4, wobei jeder der Rahmen (3) mit der entsprechenden Scheibe (2) über einen Zwischenring (9) zusammenwirkt, der auf dem Umfang der Scheibe rollt, wobei Stifte (11) der Scheibe drehbar in Sitzen des Rahmens (3) montiert sind.
  7. Vorrichtung nach Anspruch 6, wobei ein Kugellager (10) zwischen der Scheibe (2) und dem Zwischenring (9) montiert ist und Kugellager (12) zwischen den Stiften (11) und den Sitzen des Rahmens (3) angeordnet sind.
  8. Vorrichtung nach einem der Ansprüche 1 bis 7, wobei jedes Antriebselement (OA) im Inneren eines Gehäuses (13) positioniert ist, wobei die Spindeln (4, 5) des Rahmens (3) in Sitzen des Gehäuses (13) drehbar montiert sind.
EP97109313A 1996-06-13 1997-06-09 Litzenkontrollvorrichtung für Webmaschinen Expired - Lifetime EP0812937B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96MI001207A IT1284010B1 (it) 1996-06-13 1996-06-13 Dispositivo di comando dei quadri dei licci di telai di tessitura nel movimento in tela
ITMI961207 1996-06-13

Publications (2)

Publication Number Publication Date
EP0812937A1 EP0812937A1 (de) 1997-12-17
EP0812937B1 true EP0812937B1 (de) 2000-09-13

Family

ID=11374421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97109313A Expired - Lifetime EP0812937B1 (de) 1996-06-13 1997-06-09 Litzenkontrollvorrichtung für Webmaschinen

Country Status (4)

Country Link
EP (1) EP0812937B1 (de)
JP (1) JPH1053932A (de)
DE (1) DE69703064T2 (de)
IT (1) IT1284010B1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH188290A (de) * 1936-04-09 1936-12-31 Rueti Ag Maschf Vorrichtung zur Bewegung von Webschäften mit pendelnder Aufhängung.
CS179196B1 (en) * 1975-08-25 1977-10-31 Josef Resch Shedding mechanisms for weaving machines

Also Published As

Publication number Publication date
JPH1053932A (ja) 1998-02-24
IT1284010B1 (it) 1998-05-08
ITMI961207A1 (it) 1997-12-13
EP0812937A1 (de) 1997-12-17
ITMI961207A0 (de) 1996-06-13
DE69703064D1 (de) 2000-10-19
DE69703064T2 (de) 2001-05-03

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