Flyer drafting arrangement having a condensing zone
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United States of America Patent
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-
Apr 17, 2001
Grant Date -
N/A
app pub date -
Jan 21, 2000
filing date -
Jan 21, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Flyer drafting arrangements deliver drafted fiber strands, whose width is greater than their height. Because of this, a condensing zone is often arranged downstream of the flyer drafting arrangements, which bundles the respective fiber strand laterally. Up to now, such condensing zones comprised mechanical condensers, which produced very unsatisfactory results. It is therefore provided in the present invention that a pneumatic condensing device is arranged at the condensing zone arranged downstream of the flyer drafting rollers. This condensing device can comprise a suction slit extending essentially in transport direction of the fiber strand, which suction slit is covered by an air-permeable transporting surface which guides the fiber strand.
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