Arrangement for open-end friction spinning

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

1986-09-09

1988-07-26

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57408, 57411, D01H 7892, D01H 7898, D01H 1135

Patent

active

047591765

ABSTRACT:
An open-end friction spinning arrangement is disclosed with two adjacently arranged rollers driven in the same rotational direction in forming a wedge-shaped year forming gap with their cover surfaces. It is provided that a suction device generates an air current directed into the wedge-shaped gap. This suction device creates differential suction forces at different zones of the wedge-shaped gap. The suction device includes different length suction slots in the respective friction rollers. An air inlet device having varying cross-sections along the length of the yarn forming gap is provided to optimize the effect of the slots and the air inlet opening in the forming yarn.

REFERENCES:
patent: 4483136 (1984-11-01), Stahlecker et al.
patent: 4522023 (1985-06-01), Stahlecker
patent: 4537021 (1985-08-01), Parker
patent: 4537022 (1985-08-01), Stahlecker
patent: 4571932 (1986-02-01), Stahlecker et al.

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