Device for direct insertion of yarn in automatic winder
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United States of America Patent
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Jun 29, 2004
Grant Date -
Apr 1, 2004
app pub date -
Sep 30, 2002
filing date -
Sep 30, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An insertion mechanism brings an insert yarn into association with a base yarn in an automatic winder. The insertion mechanism comprises an insertion guide for delivering the insert yarn to a predetermined location on the winder, and a tensioning device for maintaining tension on the insert yarn. In another aspect, an automatic winder is configured or modified for direct insertion. In contrast to conventional creel frame insertion, the direct insertion technique of the invention avoids the need for a separate step of back-winding, and allows the automatic doffing feature on the winder to be enabled.
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