Open end rotor spinning machine

Details Open end rotor spinning machine Open end rotor spinning machine

2008-05-27

2008-05-27

Hurley, Shaun R. (Department: 3765)

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

Reexamination Certificate

active

07377094

ABSTRACT:
An open end rotor spinning machine with plural workstations each having a yarn spinning device, a yarn take-off mechanism loaded by a reversibly driven single drive and a winding device for producing a cross-wound bobbin. The spinning device has a spinning rotor, a fiber band opening roller and a single motor-driven fiber band feed cylinder. Each workstation (2) has a mechanism (10) for cutting to length a yarn (30) retrieved from the bobbin (22), a yarn storage mechanism (37) and a drive mechanism (7) for lifting the bobbin (22) from its drive roller (23). During the piecing process, a manually activatable control mechanism (9) activates the drive (19) of the yarn take-off mechanism (18), the drive (15) of the fiber band draw-in cylinder (14) and the drive mechanism (7) to lift the bobbin (22) according to a predetermined piecing program.

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German Search Report.

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