Stepping motor arrangement for driving a silver feed roller in a rotor spinning machine
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United States of America Patent
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Apr 23, 1996
Grant Date -
N/A
app pub date -
Mar 21, 1994
filing date -
Mar 26, 1993
priority date (Note) -
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Abstract
A rotor spinning machine has a plurality of simultaneously operated spinning stations each with a spinning rotor, an opening roller, a feed roller for delivering sliver to the opening roller, and a stepping motor connect directly to the feed roller for driving thereof. An actuating arrangement is provided for selectively actuating each stepping motor in a normal increment mode during spinning operation and in a microincrement mode during yarn piecing operations.
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