Method of and apparatus for spinning and piecing yarn

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

1995-09-01

1997-10-07

Stryjewski, William

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57279, 57328, 57333, 57350, D01H 1100, D01H 1304

Patent

active

056735472

ABSTRACT:
A spinning apparatus having a spinning section for forming yarn by applying a rotating air current of predetermined air pressure to a supplied fiber bundle and twisting the yarn while opening an end of the fiber bundle, and having a piecing section for reverse threading a spun yarn end into that spinning section. The spinning apparatus has a high pressure application member for applying high pressure air at a pressure higher than the aforementioned predetermined air pressure to such fiber bundle during the predetermined time after the spun yarn end is reverse threaded into the spinning section. The high pressure application member includes a first air circuit for supplying the aforementioned predetermined air pressure, a second air circuit that supplies air at a pressure higher than the aforementioned predetermined air pressure and a change-over member between the first and second air circuits.

REFERENCES:
patent: 4845936 (1989-07-01), Artzt et al.
patent: 5146740 (1992-09-01), Mori
patent: 5159806 (1992-11-01), Mori et al.
patent: 5193335 (1993-03-01), Mori
patent: 5211001 (1993-05-01), Mori
patent: 5263310 (1993-11-01), Mori
patent: 5419110 (1995-05-01), Mikami et al.
patent: 5511373 (1996-04-01), Banba

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