Arrangement for inserting and removing of half-loom beams in a w

Details Arrangement for inserting and removing of half-loom beams in a w Arrangement for inserting and removing of half-loom beams in a w

1995-12-21

1997-08-05

Falik, Andy

Textiles: weaving

Miscellaneous

Loom cleaning

D03J 100

Patent

active

056532679

DESCRIPTION:

BRIEF SUMMARY
FIELD OF THE INVENTION

The invention relates to an arrangement for inserting and removing half-loom beams into or out of a loom-beam bearing on a weaving machine, including a loom-beam lifting and transporting carriage having at least two bearing arms, wherein the half-loom beams have at their one axial end a fixed plate and a disk projecting on the outside of the fixed plate and rigidly connected to same, and the loom-beam bearing has a bearing shell to receive in pairs the disks of two half-loom beams, which disks face one another, and the bearing shell can be closed off by a, preferably swingable, bearing lid and is accessible radially laterally and/or from above through an edge opening for the half-loom beams provided on the bearing arms.


BACKGROUND OF THE INVENTION

In a conventional device of this type (DE-C-3317607), a loom-beam lifting and transporting carriage has a center bearing arm having bearing members placeable against the adjacent fixed plates of the half-loom beams, and a bearing hook gripping under the rings. The bearing hook can be fixed with respect to the bearing shell of the weaving machine receiving the disk, and is arranged movably perpendicularly with respect to the longitudinal length of the lifting and transporting carriage on the center bearing arm. The bearing hook is fixed by a nose arranged on its underside the nose being received by a recess of the extended bearing shell of the weaving machine during lowering of the bearing hook, which lowering is done by pivoting the center bearing arm. Thus the loom-beam lifting and transporting carriage is positioned during insertion, first, to the fixation position of the center bearing arm outside of the bearing shell. From there, the half-loom beams are moved, by a spindle drive on the center bearing arm with the help of the bearing members, out of the bearing hook until they fall beyond the bearing hook, edge into the bearing shell. Because of the high loom-beam mass, considerable mechanical stress is hereby applied to the loom beam and the loom-beam bearing. The removal of the half-loom beams out of the weaving machine is possible with the conventional device, possibly with the help of crowbars, with which the half-loom beams are first placed onto the bearing hooks beyond their edges. Because of the little space available in the area of the center bearing between the two half-loom beams, a removal in pairs of the half-loom beams with a continuous thread chain is, however, not possible. The warp threads must be cut off in this case and the loom beams must be removed individually, for example with the help of a dump-type carriage.


SUMMARY OF THE INVENTION

Starting out from this it is the object of the invention to develop a device of the above-identified type which makes it possible to insert and again remove half-loom beams both individually and also in pairs if necessary, with continuous warp threads, simply and smoothly into and from the loom-beam bearing of a weaving machine.
The basic thought of the solution of the invention is to grip under the half-loom beams near their disk in such a manner that they can be placed collision-free directly into the bearing shell and can be removed collision-free therefrom. In order to make this possible, the invention suggests that a bearing surface, coaxial with respect to the disk, be arranged in an area between the disk and the fixed plate of the half-loom beams, which area projects axially over the bearing shell when the half-loom beams are inserted, and that at least one of the bearing arms has a bearing claw, supported on the front side past the bearing shell from below on the front surface. As an alternative, it is suggested that the bearing arm has a bearing depression reaching into the vicinity of the bearing shell and extending around at least one of the disks partially in a circumferential direction, and at least one bearing claw is axially offset with respect to the bearing depression and can be moved or pivoted past the adjacent disk from above against the bearing surface while

REFERENCES:
patent: 4910837 (1990-03-01), Fujimoto et al.
patent: 5102283 (1992-04-01), Contzen

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