Sliver resolving apparatus for open-end spinning machines

Details Sliver resolving apparatus for open-end spinning machines Sliver resolving apparatus for open-end spinning machines

1975-10-10

1977-05-24

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Unitary multiple twist devices

19 82, 57 5895, D01H 112

Patent

active

040246990

ABSTRACT:
A pressure member cooperates with a supply roller to feed sliver to a sliver resolving roller enclosed by a housing. The pressure member has a sliding surface shaped complementally with and overlapping a sliding surface on the resolving roller housing surrounding the sliver infeed opening in the housing. The sliding surfaces cooperate to seal the resolving roller housing against gaps and maintain a smooth-walled roller chamber in any adjusted position of the pressure member.
The interior wall of the housing chamber enclosing the resolving roller may have a thin liner bonded to it. The liner is of material capable of being formed to fit a non-cylindrical wall and of providing a precisely smooth wear-resistant surface. The liner has sliver infeed, fiber discharge and, optionally, dirt discharge openings through it aligned with corresponding openings in the housing wall; but the liner openings are smaller than the housing openings and, therefore, extend beyond and shield the edges of the housing openings. The resolving roller periphery and the liner cooperate to form the fiber passage between the sliver infeed opening and the fiber discharge opening. A circumferential portion of the liner immediately preceding the fiber discharge opening in the direction of fiber travel is eccentrically spaced from the roller periphery to form a widened section in the fiber passage.

REFERENCES:
patent: 2420367 (1947-05-01), Geer et al.
patent: 3762144 (1973-10-01), Didek et al.
patent: 3785138 (1974-01-01), Rajnoha et al.
patent: 3797218 (1974-03-01), Landwehrkamp et al.
patent: 3800521 (1974-04-01), Doudlebsky et al.
patent: 3828539 (1974-08-01), Croasdale et al.
patent: 3834145 (1974-09-01), Ellingham et al.
patent: 3839855 (1974-10-01), Stalder

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