发明名称 |
YARN TENSION CONTROL DEVICE |
摘要 |
<p>A yarn tension control device controls tension in a running yarn. The tension control device includes a housing having a yarn guiding inlet for receiving running yarn at an unwinding tension from a yarn supply source, and a yarn guiding outlet for guiding running yarn exiting the housing at a delivery tension. First and second opposing yarn engaging surfaces are disposed between the inlet and the outlet, and are adapted to frictionally engage opposite sides of the running yarn along a path of yarn travel through the housing. The first and second yarn engaging surfaces define a respective plurality of sequentially spaced friction rolls. A biasing assembly resiliently urges the first and second yarn engaging surfaces together. The opposing friction rolls cooperate to form a number of sequentially spaced nip points adapted to adjust yarn delivery tension in response to stress variations in running yarn entering the housing.</p> |
申请公布号 |
WO2009073072(A1) |
申请公布日期 |
2009.06.11 |
申请号 |
WO2008US12431 |
申请日期 |
2008.11.03 |
申请人 |
AMERICAN LINC, LLC;HOOVER, DONALD, LYNN |
发明人 |
HOOVER, DONALD, LYNN |
分类号 |
B65H59/22 |
主分类号 |
B65H59/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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