Cleaning arrangement for open-end friction spinning machines
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United States of America Patent
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Sep 23, 1986
Grant Date -
N/A
app pub date -
Oct 19, 1984
filing date -
Oct 28, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for the cleaning of a spinning unit of an open-end friction spinning machine is disclosed for spinning units of the type containing two rollers arranged next to one another, drivable in the same rotational direction and forming a wedge-shaped yarn forming gap. It is provided according to the invention that a device for carrying out the cleaning is applied to the area of the wedge-shaped gap and that, during the cleaning, the yarn and fiber holding forces directed to the wedge-shaped gap during the spinning operation are eliminated or at least reduced. Preferred disclosed embodiments reduce the yarn and fiber holding forces during cleaning by reducing or interrupting the suction forces and by stopping or reversing the rotation of at least one of the friction rollers.
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