Cleaning arrangement for open-end friction spinning machines

Details Cleaning arrangement for open-end friction spinning machines Cleaning arrangement for open-end friction spinning machines

1984-10-19

1986-09-23

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Clearing

57401, D01H 7885, D01H 1135

Patent

active

046127623

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.

REFERENCES:
patent: 3524312 (1970-08-01), Landwehrkamp et al.
patent: 3597911 (1971-08-01), Schiltknecht
patent: 4380892 (1983-04-01), Parker et al.
patent: 4514972 (1985-05-01), Stahlecker
patent: 4514973 (1985-05-01), Stahlecker

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