Warp knitting machine with piezoelectrically controlled bending

Details Warp knitting machine with piezoelectrically controlled bending Warp knitting machine with piezoelectrically controlled bending

1995-11-07

1996-09-10

Calvert, John J.

Textiles: knitting

United needle machines

Straight

66204, D04B 2726, D04B 2732

Patent

active

055534708

ABSTRACT:
In a warp knitting machine at least one guide bar (8,9) carries piezoelectric bending transducers (14,15) to which are attached guides (11,12). A control arrangement (16) comprises a computer (17,19,20) and a potential generator, which provide the control potential via control lines (25) to the bending transducers. The potential source provided to a guide bar (8,9) comprises a plurality of serial to parallel converters (23) whose data and command inputs (22) are connected via a common data and command bus (21) with the computer and whose outputs (26) are connected with the bending transducers via the control lines (25). The serial to parallel converters (23) take up the data sequentially and upon occurrence of the switching command transmit them simultaneously in the form of control potentials. In this way rapidly running and/or large warp knitting machines can be provided with a operative piezoelectric jacquard control.

REFERENCES:
patent: 3729954 (1973-05-01), Ducol
patent: 3825900 (1974-07-01), Anderson
patent: 5390512 (1995-02-01), Mista
patent: 5491988 (1996-02-01), Hohne et al.

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