Fiber opening, fiber feeding and yarn withdrawing unit for a spi

Details Fiber opening, fiber feeding and yarn withdrawing unit for a spi Fiber opening, fiber feeding and yarn withdrawing unit for a spi

1987-10-23

1988-09-13

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57411, 57413, D01H 7885, D01H 7892, D01H 1135

Patent

active

047699841

ABSTRACT:
A fiber opening, fiber feeding and yarn withdrawing unit for a spinning station of an open end rotor spinning machine, in which a projection of the fiber feed conduit extends into the rotor behind the fiber slide wall at a close spacing thereto and to an extent greater than the diametrical extent of the open end of the rotor. The components of the unit are mounted on a unit housing that pivots about an axis transverse to the axis of rotation of the rotor and spaced from the plane of the collection groove of the rotor to the side opposite the rotor open end and also spaced from a plane generally perpendicular to and at the rotor open end of the portion of the fiber slide wall adjacent the fiber feed conduit end, for pivoting of the projection into and out of the rotor without interference therewith. The fiber feed conduit opening in the projection wall is enlarged from the interior of the conduit in the direction of rotation of the rotor and the spacing between the projection and the fiber slide wall of the rotor increases along the enlarged conduit opening.

REFERENCES:
patent: 3457716 (1969-07-01), Storek et al.
patent: 3651632 (1972-03-01), Shepherd
patent: 3672144 (1972-06-01), Didek et al.
patent: 4245460 (1981-01-01), Staufert et al.
patent: 4471608 (1984-09-01), Kawabata et al.
patent: 4516396 (1985-05-01), Stahlecker et al.
patent: 4660374 (1987-04-01), Wassenhoven

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