Method for the control of a weft yarn feeding device in a yarn processing system, and yarn processing system
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United States of America Patent
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Dec 20, 2005
Grant Date -
Aug 7, 2003
app pub date -
Apr 9, 2001
filing date -
Apr 7, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A yarn processing system includes a weft yarn feeding device with a control unit and a power loom which consumes weft yarn. In operation, a run-signal is generated by the power loom that initializes the start-up of the weaving operation. A start-signal that is derived from the run-signal is transmitted to the feeding device. The start-signal is generated externally of the feeding device. The drive motor of the feeding device is driven at a predetermined speed, after receiving the external start-signal in order to prevent an undesired reduction of the size of a yarn store by the initial consumption demand of the start-up of the weaving operation of the power loom. A signal transmitting connection is provided in the yarn processing system between the power loom and a control unit of the feeding device for transmitting the start-signal. On start-up of the power loom, the drive motor of the feeding device is operated at a predetermined speed by the control device independent from the size of the yarn store in the feeding device.
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