Arrangement for condensing a drafted fiber strand
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United States of America Patent
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-
Feb 13, 2001
Grant Date -
N/A
app pub date -
Jul 29, 1999
filing date -
Aug 17, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A condensing zone for condensing a drafted twist-free fiber strand is arranged downstream of a drafting arrangement of a ring spinning machine. The condensing zone includes a stationary sliding surface having a suction slit extending essentially in a fiber strand transport direction. A perforated transport belt transports the fiber strand over the suction slit of the sliding surface. The transport belt wraps around a bottom roller of a front roller pair of the drafting arrangement and is driven by the bottom roller. The transport belt drives in turn a nipping roller, which limits the condensing zone on its exit side with a nipping point serving as a twist block. The nipping roller presses the fiber strand and the transport belt against the sliding surface of the condensing zone.
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