Apparatus and method for effecting yarn piecing on an open-end r

Details Apparatus and method for effecting yarn piecing on an open-end r Apparatus and method for effecting yarn piecing on an open-end r

1995-05-01

1997-06-24

Stryjewski, William

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57406, 57407, 57408, 57409, 57411, D01H 1326, D01H 400

Patent

active

056408382

ABSTRACT:
In preparation of the piecing process in an open-end rotor spinning device, negative pressure is first applied in a housing containing the spinning rotor, and the rotor cover is brought from its operating position into a fiber evacuation position in which it is lifted off from the housing. Fiber feeding is then switched on. The fiber stream produced thereby, together with the air stream which conveys the fibers is deflected and is evacuated by means of the negative pressure prevailing in the housing over the open rotor edge from the interior of the rotor and from the housing, until the rotor cover is brought back into its operating position to convey fibers to the fiber collection groove. To carry out this process, a controllable opening device which is connected to the control device controlling the piecing process, and by means of which the rotor cover can be brought into a fiber evacuation position and into an operating position, and a seal ensuring tightness between the two parts of the fiber feeding channel in both positions of the rotor cover are assigned to the rotor cover.

REFERENCES:
patent: 3662532 (1972-05-01), Stahlecker
patent: 4022011 (1977-05-01), Hirai
patent: 4112659 (1978-09-01), Stahlecker et al.
patent: 4222225 (1980-09-01), Stahlecker et al.
patent: 4384451 (1983-05-01), Elias et al.
patent: 4497166 (1985-02-01), Artzt et al.
patent: 4676059 (1987-06-01), Artzt et al.
patent: 4757678 (1988-07-01), Stahlecker
patent: 4825631 (1989-05-01), Raasch
patent: 5471829 (1995-12-01), Billner

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