Method and apparatus for starting up a friction spinning assembl

Details Method and apparatus for starting up a friction spinning assembl Method and apparatus for starting up a friction spinning assembl

1986-10-15

1987-12-08

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57401, D01H 1502

Patent

active

047110821

ABSTRACT:
The method for starting up a friction spinning assembly is used in a friction spinning assembly including: friction surfaces movable in opposite directions forming a spinning wedge, at least one of the friction surfaces being a perforated drum having a suction device with a suction nozzle acting on the spinning wedge by suctioning air through the wall of the at least one perforated drum; at least one suction device acting on the spinning wedge; and an automatic startup device performing a thread joining operation. The method for starting up the friction spinning assembly includes the steps of: inserting a thread for thread joining into the spinning wedge; suctioning air through the at least one perforated drum; and simultaneously feeding fibers to the spinning wedge with a fiber feeding device and moving the friction surfaces at a given normal operating speed, and drawing-off thread from the spinning wedge with a thread drawing-off device simultaneously or after a brief delay at the given normal spinning operation speed. A device is also provided for starting up the friction spinning assembly.

REFERENCES:
patent: 4132056 (1979-01-01), Husges et al.
patent: 4223517 (1980-09-01), Husges et al.
patent: 4541233 (1985-09-01), Raasch et al.
patent: 4541235 (1985-09-01), Raasch
patent: 4598539 (1986-07-01), Stahlecker et al.

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