Textiles: weaving – Miscellaneous – Loom cleaning
Patent
1998-08-06
2000-05-02
Falik, Andy
Textiles: weaving
Miscellaneous
Loom cleaning
28208, 414560, D03J 100
Patent
active
060560223
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention concerns a device for changing the harness of a loom having at least two bearing columns arranged on a chassis, with jibs vertically displaceable and preferably horizontally extendable from the bearing columns, and having a device for transfer of harness frames arranged on the jibs, which transfer device comprises two spaced apart boundary plates connected to each other via at least one cross-member, fitted with guide rails for the harness frames and with at least two bearers provided spaced apart from each other on a transverse support connected to the boundary plates and which are pivotable with respect to the transverse support for receiving and transferring the harness frames.
2. Description of the Related Art
During the changing of the harness the chassis is directed to a particular position with respect to the loom and subsequently the transfer or, as the case may be, reception is initiated by lowering of the transfer device. The harness frames are form-fittingly guided within the loom in plastic guideways. This means, that also on the side of the transfer device a high geometric precision must be maintained, in order that the harness frames can be easily introduced into the guideways of the loom. To this there is added that weavers frequently utilize looms with varying loom breadths, for which until now varying article change devices had to be employed for loading.
Beginning therewith the present invention is concerned of a task of improving the change device for harnesses of the type described in the introductory portion in such a manner, that a easy article change is possible also with different loom breadths.
SUMMARY OF THE INVENTION
The inventive solution is based on the concept of making the distance between the boundary plates adjustable, so that with one and the same article change vehicle looms with varying loom breadths can be loaded. The adjustment of the separation of the boundary plates can herein either occur by hand or by motor.
A preferred embodiment of the invention contemplates that the cross-member and the transverse support are assembled from respectively at least two simultaneously telescopable telescopic parts, wherein the telescopic parts of the cross-member and transverse support are operably connected by at least one threaded drive with each other, which are simultaneously driveable.
In the case of the motorized separation adjustment means it has been found to be advantageous, when the telescopic parts of the cross-member and transverse support or their threaded drives are driven by a step motor or servo-motor controlled via a common control device.
In order to achieve an even raising and lowering of the harness frame in the guideways of the boundary plates, there is for this purpose a synchronism driver provided between the boundary plates and the transverse support, which may include a synchronization shaft extending through the transverse support, which is adjustable in its length together with the transverse support, and is preferably telescopic.
BRIEF DESCRIPTION OF THE DRAWINGS
In the following the invention will be described in greater detail by reference to the embodiment represented in schematic manner in the figures. There are shown
FIG. 1 a front view of an extendible article change device for looms;
FIG. 2 a side view of the article change device according to FIG. 1 viewed in the direction of arrow A.
DETAILED DESCRIPTION OF THE INVENTION
The mobile article change device shown in the figures is designed for the transference of a warp beam and a loom harness on a loom. The article change device includes a chassis 10 with a device 12 for transferring a warp beam 14, two bearing columns 16 mounted on the chassis 10, two jibs 18 which together with the bearing columns 16 are moveable up and down along distance A and which are extendible via the linkage or articulated joint 20, a transverse support 22 which is connected to the jibs 18 via the linkages 24 and a device 26 for transferring the--
REFERENCES:
patent: 4373854 (1983-02-01), Schultheis
patent: 4573856 (1986-03-01), Meyer et al.
patent: 5394596 (1995-03-01), Lindenmuller et al.
patent: 5450880 (1995-09-01), Briner
patent: 5657794 (1997-08-01), Briner et al.
patent: 5775380 (1998-07-01), Roelstraete et al.
Falik Andy
Genkinger Hebe- und Fordertechnik GmbH
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