Arrangement for open-end friction spinning

Details Arrangement for open-end friction spinning Arrangement for open-end friction spinning

1986-06-09

1987-03-31

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57411, D01H 7898, D01H 7892

Patent

active

046532641

ABSTRACT:
An arrangement is provided for open-end friction spinning including a pair of adjacently arranged suction rollers rotatable in the same rotational direction. One roller rotates into the wedge-shaped gap formation zone and the other rotates out of the wedge-shaped gap. It is provided that the suction slot of the suction insert inside of the roller rotating into the wedge-shaped gap is longer than the suction slot of the suction insert of the roller rotating out of the wedge-shaped gap. The portion of the suction slot of the roller rotating into the yarn formation zone which extends beyond the slot of the roller rotating out of the yarn formation zone is displaced circumferentially from the wedge-shaped gap so as to provide for enhanced spinning conditions in the region of the yarn tip.

REFERENCES:
patent: 4107909 (1978-08-01), Fehrer et al.
patent: 4367623 (1983-01-01), Parker et al.
patent: 4557105 (1985-12-01), Brockmanns et al.
patent: 4571932 (1986-02-01), Stahlecker et al.
patent: 4586325 (1986-05-01), Wassenhoven

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