Initial threading for vacuum spinning

Details Initial threading for vacuum spinning Initial threading for vacuum spinning

1985-05-09

1986-12-30

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Threading up

57261, 57280, 57328, 57333, 57350, 226 7, 226 97, D01H 1502, D01H 528, B65H 5116

Patent

active

046319123

ABSTRACT:
An initial threading mechanism provides for simple but effective threading of the elongated hollow shaft of a vacuum spinning apparatus. Connected textile fibers are fed into the first end of the elongated hollow shaft, into the passageway which extends through the shaft from its first end to a second end. A vacuum tube is mounted for rotation about an axis parallel to and spaced from the axis of rotation of the hollow shaft. When a first open end of the vacuum tube is pivoted into an operative position adjacent the second end of the shaft, and in alignment with the shaft passageway, the vacuum tube connects up to a source of vacuum and draws a segment of the connected fibers completely through the passageway. The shaft includes perforations which normally are in operative communication with a vacuum source applied to the circumferential exterior of the shaft, however during rotation of the vacuum tube into its operative position an electrical switch is actuated causing a solenoid operated valve to cut off the application of vacuum to the circumferential exterior of the shaft. Once a segment of connected fibers has been drawn through the shaft passageway the vacuum tube is pivoted back to its original position, and the segment of fibers is connected to a take-up mechanism.

REFERENCES:
patent: 3445995 (1969-05-01), Bell et al.
patent: 3511041 (1970-05-01), Korikovsky et al.
patent: 3577721 (1971-05-01), Schmick et al.
patent: 3605396 (1971-09-01), Guignard et al.
patent: 4026095 (1977-05-01), Kobatake et al.
patent: 4047372 (1977-09-01), Horstmann et al.
patent: 4170101 (1979-10-01), Bock
patent: 4408442 (1983-10-01), Rohner
patent: 4507913 (1985-04-01), Morrison
patent: 4543776 (1985-10-01), Seiki et al.
patent: 4550560 (1985-11-01), Tanaka et al.

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