Fiber feed arrangement for open-end friction spinning

Details Fiber feed arrangement for open-end friction spinning Fiber feed arrangement for open-end friction spinning

1984-06-11

1986-02-18

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57408, 57409, 57411, D01H 7882, D01H 7892

Patent

active

045704341

ABSTRACT:
A method and apparatus for open-end friction spinning is disclosed having two adjacently arranged friction rollers, driven in the same rotational direction and forming a wedge-shaped gap therebetween. A suction device effective in the area of the gap as well as a fiber feed channel leading to the gap and a yarn withdrawal device for drawing off the produced yarn in the direction of the gap are also provided. It is further provided that the mouth of the fiber channel extending at a tangential angle to the gap is widened in the area of the gap in that the channel wall facing the same is formed with a rounded curve. By these measures the fiber deposition in the gap is improved by modifying the fiber transport air stream path to deposit the fibers in a straightened and parallel manner in the gap.

REFERENCES:
patent: 4165600 (1979-08-01), Schippers et al.
patent: 4202163 (1980-05-01), Turk et al.
patent: 4241574 (1980-12-01), Turk et al.

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