发明名称 |
Device for feeding yarn in textile machines |
摘要 |
The device for feeding yarn in a textile machine comprises a set of feed driving rollers rotating at a speed exceeding the maximum yarn processing speed in the machine, a first yarn brake downstream of the driving rollers, a first swing support upstream of the rollers, a second yarn brake and a second swing support. Each swing support includes a movable member exerting by its weight a tension against the yarn which causes the latter to engage frictionally the driving rollers. The frictional force exceeds the force of the first yarn brake and advances the yarn about a length which is sufficient to cause the moving member of the first swing support to abut against a fixed stop member so that the tension is released from the yarn and the holding friction changes to a sliding friction which is lower than the braking force of the first brake and thus stops the decoiling of the yarn.
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申请公布号 |
US4220274(A) |
申请公布日期 |
1980.09.02 |
申请号 |
US19790044332 |
申请日期 |
1979.05.31 |
申请人 |
TEXTIMA VEB WIRKMASCHINENBAU |
发明人 |
SCHNEIDER, MANFRED;SCHUBERT, FRANK |
分类号 |
D04B15/38;B65H59/10;B65H59/36;D04B15/48;D04B27/10;(IPC1-7):B65H51/30 |
主分类号 |
D04B15/38 |
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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