Method and device for manufacturing a twisted yarn

Details Method and device for manufacturing a twisted yarn Method and device for manufacturing a twisted yarn

1994-10-21

1996-03-19

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Open end spinning

57409, 57413, 57417, D01H 408, D01H 438, D01H 440

Patent

active

054994969

ABSTRACT:
In a method of manufacturing a twisted yarn a rotor is rotatably supported on a machine frame. A yarn guide channel extends radially within the rotor over at least a portion of its diameter. A centering eye for the twisted yarn is positioned on the extension of the rotor axis. A yarn guide tube is arranged so as to guide a yarn exiting from the yarn guide channel to the centering eye. A spinning device is rotatably supported on the rotor eccentrically relative to the rotor axis. A fiber strand is dissolved into dissolved fiber material and fed axially through the rotor and upwardly toward the spinning device where at least two spun fibers are produced. The spun fibers are downwardly guided toward the yarn guide channel so as to form a plied yarn. Along this path the spun fibers are subjected to a first twist to form a once twisted yarn by the rotation of the spinning device relative to the rotor. The once twisted yarn is guided into the yarn guide channel, then upwardly into the yarn guide tube and through the centering eye. Along this path the once twisted yarn it is subjected to a second twist to form a twice twisted yarn by the rotation of the rotor counter to the direction or rotation of the spinning device.

REFERENCES:
patent: 3605395 (1971-09-01), Morikawa et al.
patent: 3757507 (1973-09-01), Maxham
patent: 4527384 (1985-07-01), Stejskal et al.
patent: 4567723 (1986-02-01), Safar

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