Spinning apparatus of rotor type open-end spinning unit and roto

Details Spinning apparatus of rotor type open-end spinning unit and roto Spinning apparatus of rotor type open-end spinning unit and roto

1992-07-28

1994-11-01

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57404, 57414, D01H 440, D01H 450

Patent

active

053598466

ABSTRACT:
Opened fibers are supplied into a rotor in high rotation, and a fiber bundle collected at a fiber-collecting section of the rotor is drawn as yarn from a yarn drawing passage provided on the open side of the rotor. A rotary assembly which is actively driven separately from the rotor is provided coaxially in the rotor. The rotary assembly has at least part thereof facing the vicinity of the fiber-collecting section and another part shaped to face a first end of the yarn drawing passage. The rotary assembly is provided with a yarn passage for guiding a fiber bundle to a position opposite the yarn drawing passage from the vicinity of the fiber-collecting section. A twist propagation preventing portion is provided in that end of the yarn passage that lies on the fiber-collecting section side. The rotation of the fiber bundle is suppressed by the twist propagation preventing portion, stopping the twisting. At the time the fiber bundle is twisted, tension is applied to the fibers so that the fibers are twisted while being stretched.

REFERENCES:
patent: 3336742 (1967-08-01), Stary et al.
patent: 3779620 (1973-12-01), Stahlecker
patent: 3908349 (1975-09-01), Urifu et al.
patent: 4044537 (1977-08-01), Negishi et al.
patent: 4471608 (1984-09-01), Kawabata et al.
patent: 4510745 (1985-04-01), Kawabata et al.
patent: 4593522 (1986-06-01), Ishizuka et al.
patent: 4625506 (1986-12-01), Beckers
patent: 4731987 (1988-03-01), Jaros et al.

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