Method of and apparatus for spinning yarn

Details Method of and apparatus for spinning yarn Method of and apparatus for spinning yarn

1987-09-15

1989-07-11

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Covering or wrapping

57 6, 57224, 57328, D01H 528, D02G 116

Patent

active

048459321

ABSTRACT:
An air spinning method and apparatus for spinning a yarn. The apparatus includes a pipe with a fiber bundle passageway, air jet nozzles for applying whirling air currents near the inlet of the pipe, and a rotating body including air discharge passages and revolving around the pipe. In the method, the fiber bundle is passed through the pipe's fiber bundle passageway. Rear ends of some fibers are separated from the fiber bundle by air currents jetted from the nozzles so as to be rotated together with air currents by the rotating body after drawn into the discharge passage. Fibers lying in the central portion of the fiber bundle, pass through the pipe's fiber bundle passageway without being influenced by the air currents jetted from the nozzles. Fibers lying on the peripheral portion of the fiber bundle, however, are subjected to such air currents so that ends of some such fibers are separated from the fiber bundle, drawn into the air discharge passageway, whirled by the rotating body, and wound around other fibers of the fiber bundle. The spun yarn thus formed includes core fibers in substantially the same form and relationship to each other as in the fiber bundle, and winding fibers spirally wound around the core fibers along the length of the core fibers. The winding fibers are of uniform frequency and angle along the length of the core fibers.

REFERENCES:
patent: 3822543 (1974-07-01), Edagawa et al.
patent: 3978648 (1976-09-01), Yamagata et al.
patent: 4112658 (1978-09-01), Morihashi
patent: 4114358 (1978-09-01), Tsuchida et al.
patent: 4183202 (1980-01-01), Morihashi
patent: 4497167 (1985-02-01), Nakahara
patent: 4713931 (1987-12-01), Morrison et al.

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