发明授权
- 专利标题: Clearing a weft yarn break in a loom
- 专利标题(中): 在一个LOOM中清除一条羊毛裤
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申请号: US702267申请日: 1991-05-17
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公开(公告)号: US5158120A公开(公告)日: 1992-10-27
- 发明人: Josef Kaufmann , Eric Mader
- 申请人: Josef Kaufmann , Eric Mader
- 申请人地址: CHX Winterthur
- 专利权人: Sulzer Brothers Limited
- 当前专利权人: Sulzer Brothers Limited
- 当前专利权人地址: CHX Winterthur
- 优先权: CHX01721/90 19900521
- 主分类号: D03D47/28
- IPC分类号: D03D47/28 ; D03D47/24 ; D03D47/34 ; D03D51/00 ; D03D51/08
摘要:
A pivotally mounted yarn guiding member is disposed between a weft yarn injector and a shed of warp yarns to effect drawing in of a fresh weft yarn as well as extraction of a broken weft yarn from the loom. The yarn guiding member is pivotable into a bottom position after receiving a fresh yarn end to deflect the yarn about a centering vane so that a shears may cut the yarn to form a fresh yarn tip for subsequent picking. The yarn guiding member is pivotable between a central position and a top position after receiving a loop of a broken weft yarn so as to extract the broken end of the yarn from within the shed or from the point upstream of the injector nozzle. An extraction duct is also provided on the exit side of the shed to extract the broken piece of the weft yarn via a reciprocating motion and suction. A hooked needle is also provided to effect formation of a loop of yarn for extraction by the yarn guiding member when a brake occurs upstream of the injector nozzle.
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