发明授权
US07065951B2 Yarn withdrawal nozzle for an open-end rotor spinning arrangement and method of making same
失效
用于开放式转子纺纱装置的纱线抽出嘴及其制造方法
- 专利标题: Yarn withdrawal nozzle for an open-end rotor spinning arrangement and method of making same
- 专利标题(中): 用于开放式转子纺纱装置的纱线抽出嘴及其制造方法
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申请号: US11077141申请日: 2005-03-11
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公开(公告)号: US07065951B2公开(公告)日: 2006-06-27
- 发明人: Guenter Baur
- 申请人: Guenter Baur
- 申请人地址: CH Winterthur
- 专利权人: Maschinenfabrik Rieter AG
- 当前专利权人: Maschinenfabrik Rieter AG
- 当前专利权人地址: CH Winterthur
- 代理机构: Crowell & Moring LLP
- 优先权: DE102004013828 20040315
- 主分类号: D01H4/10
- IPC分类号: D01H4/10
摘要:
A yarn withdrawal nozzle for an open-end rotor spinning arrangement is provided which includes a spiral-shaped surface in the yarn deflecting area which extends essentially over the entire yarn deflecting area and designed as a continuous spiral without interruptions. In addition thereto, the nozzle throat of the yarn withdrawal nozzle includes a further surface with structure downstream of the spiral-shaped surface, including rounded notches or curved humps. Both the spiral-shaped surface and the downstream structure are so designed that they are capable of transferring forces to the yarn without damaging same. The yarn withdrawal nozzle is moulded with a mould separation provided in an area downstream of the nozzle throat to facilitate assembly.
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