Patent ID: 7644570
Filing Date: 2010-01-12
Classification: D01H

Abstract:
1. Method for operating an open end spinning device ( 1 ), comprising a spinning rotor ( 2 ) and an opening roller ( 12 ), which can be driven individually, controlled independently of one another, wherein after an interruption of the spinning process has taken place as a result of the detection of the absence of a thread, a piecing process is introduced, comprising a piecing up process, in which an upper thread passes through a fiber ring formed in the spinning rotor ( 2 ) and is connected thereto, as well as a subsequent drawing in accumulation, which is used to reduce a thin point in the thread following the piecing, characterized in that during the piecing process, the opening roller ( 12 ) is temporarily driven at a piecing speed, which is above the operating speed of the opening roller ( 12 ).