Textiles: manufacturing – Warp preparing or handling – Machine replenishing
Patent
1992-05-11
1994-02-22
Crowder, Clifford D.
Textiles: manufacturing
Warp preparing or handling
Machine replenishing
D03J 114
Patent
active
052876055
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a device for manipulating healds or drop wires (designated below as harness members) in a warp-thread drawing-in machine from their separation from a stack via the drawing-in of the warp threads up to the transfer to supporting members provided for being arranged in a weaving machine.
BACKGROUND
Devices of this type known hitherto, as are used, for example, in the warp-thread drawing-in machine USTER DELTA of Zellweger Uster AG, comprise a multiplicity of various elements which in each case always perform only a limited partial function within the sequence. With regard to the manipulation of the drop wires, this means, for example, that these drop wires after their separation, are transported by first members to the drawing-in position, are gripped there by second members and turned for the orientation for the drawing-in of the warp threads and are then transported further by third members, the various members only being partly connected frictionally to the drop wires.
Apart from the fact that the plurality of various members makes the device more expensive, the interfaces in particular between the various members inside the device represent potential sources of error. This especially applies when there is a frictional connection between the members and the drop wires.
SUMMARY OF THE SUBJECT MATTER OF PRESENT INVENTION
An object of invention, then, is to provide a device of the type mentioned at the beginning in which the potential sources of error are minimised and the costs are kept as low as possible.
This object is achieved according to the invention by holding means for accepting the separated harness members and for positively transporting them to a drawing-in station and a transfer station, by positioning means arranged in the area of the drawing-in station, and by transfer means, arranged in the area of the transfer station, for transferring the harness members having a drawn-in warp thread to the supporting members.
The device, according to the invention therefore requires only a single type of manipulating means for manipulating the healds or drop wires from the point where they are separated from a stack up to the point where they are transferred to their supporting members. Due to the elimination of a multiplicity of potential sources of error and causes of trouble, the device is substantially less susceptible to trouble in operation. For integrating into the drawing-in process, the device requires merely two interfaces: one leading to the separating station and one at the transfer station leading to the supporting members. The susceptibility to trouble is also substantially reduced and in addition the possibility of a modular construction of the drawing-in machine presents itself.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention is described in greater detail below with reference to an exemplary embodiment and the drawings, in which:
FIG. 1 shows a perspective overall representation of a drawing-in machine according to the invention,
FIG. 2 shows a perspective representation of the drawing-in module of the drawing-in machine in FIG. 1,
FIG. 3 shows a plan view of a device according to the invention for manipulating healds in the direction of arrow 3 in FIG. 2,
FIG. 4 shows a view in the direction of arrow 4 in FIG. 3,
FIG. 5 shows a detail of FIG. 4 to an enlarged scale,
FIG. 6 shows a view in the direction of arrow 6 in FIG. 5,
FIG. 7 hows a plan view of a device according to the invention for manipulating drop wires; and
FIG. 8 shows a view in the direction of arrow 8 in FIG. 7.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
According to FIG. 1, the drawing-in machine consists of a mounting stand 1 and various subassemblies arranged in this mounting stand 1, each of which sub-assemblies represents a functional module. A warp-beam truck 2 with a warp beam 3 arranged thereon can be recognized in front of the mounting stand 1. In addition, the warp-beam truck 2 contains a so-called lifting device 4 for holding a frame 5, on whic
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Badertscher Markus
Eglseer Hermann
Crowder Clifford D.
Worrell Jr. Larry D.
Zellweger Uster AG
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