发明申请
US20130167968A1 WEFT-BRAKING DEVICE FOR YARN FEEDERS PROVIDED WITH A STATIONARY DRUM
有权
用固定式鼓提供的纱线喂料器的制动装置
- 专利标题: WEFT-BRAKING DEVICE FOR YARN FEEDERS PROVIDED WITH A STATIONARY DRUM
- 专利标题(中): 用固定式鼓提供的纱线喂料器的制动装置
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申请号: US13724622申请日: 2012-12-21
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公开(公告)号: US20130167968A1公开(公告)日: 2013-07-04
- 发明人: Giorgio BERTOCCHI , Giovanni PEDRINI , Pietro ZENONI
- 申请人: L.G.L. Electronics S.P.A.
- 申请人地址: IT GANDINO
- 专利权人: L.G.L. ELECTRONICS S.P.A.
- 当前专利权人: L.G.L. ELECTRONICS S.P.A.
- 当前专利权人地址: IT GANDINO
- 优先权: ITTO2011A001217 20111228
- 主分类号: D03D47/34
- IPC分类号: D03D47/34
摘要:
The weft-braking device comprises a first annular plate coaxially supported in front of the delivery end of a stationary drum of a yarn feeder, and a second annular plate which is coaxially biased against the first annular plate by driving elements. The yarn is adapted to run between the annular plates in order to receive a braking action by friction. The driving elements comprise at least one piezoelectric actuator, which is deformable in response to a voltage applied thereto and has a movable operative end which is operatively connected to the second annular plate and a stationary operative end which is anchored to a stationary support.