Invention Grant
US07644570B2 Method for operating an open-end spinning device 有权
操作开放式纺纱装置的方法

  • Patent Title: Method for operating an open-end spinning device
  • Patent Title (中): 操作开放式纺纱装置的方法
  • Application No.: US11988841
    Application Date: 2006-05-18
  • Publication No.: US07644570B2
    Publication Date: 2010-01-12
  • Inventor: Manfred Lassmann
  • Applicant: Manfred Lassmann
  • Applicant Address: DE Remscheid
  • Assignee: Oerlikon Textile GmbH & Co. KG
  • Current Assignee: Oerlikon Textile GmbH & Co. KG
  • Current Assignee Address: DE Remscheid
  • Agency: K&L Gates LLP
  • Priority: DE102005033562 20050719
  • International Application: PCT/EP2006/004711 WO 20060518
  • International Announcement: WO2007/009525 WO 20070125
  • Main IPC: D01H4/50
  • IPC: D01H4/50
Method for operating an open-end spinning device
Abstract:
The invention relates to a method for operating an open-end spinning device (1), comprising a spinning rotor (2) and an opening roller (12), which can be controlled so as to be driven individually independently of one another, wherein after an interruption in the spinning process takes place as a result of the detection of the absence of a thread, a piecing operation is initiated, comprising a piecing process, in which an upper thread passes through a fiber ring formed in the spinning rotor (2) and is connected to the latter, and a subsequent drawing-in accumulating process which serves to reduce a thin point in the thread following the piecer, wherein during the piercing operation, the opening roller (12) is temporarily driven at a piecing speed which is higher than the operating speed of the opening roller (12).
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