Yarn exchange and doffing device for use with a two-for-one twis

Details Yarn exchange and doffing device for use with a two-for-one twis Yarn exchange and doffing device for use with a two-for-one twis

1992-01-28

1993-06-29

Hail, III, Joseph J.

Textiles: spinning, twisting, and twining

Apparatus and processes

Threading up

57 5849, 57281, D01H 918

Patent

active

052223515

ABSTRACT:
The present invention provides an arrangement wherein a carriage is provided so that the carriage may travel along units of a two-for-one twister disposed, the carriage comprising a yarn exchanging mechanism for exchanging an empty yarn package supported on a spindle of each unit with a yarn package, a yarn end fining mechanism for drawing a yarn end from the yarn package, a threading mechanism for inserting the yarn end into an axial hole of the yarn package by an air flow, a doffing mechanism for removing a winding package for full bundles supported on a cradle arm of each unit and supplying a paper tube to the cradle arm, and a yarn engaging mechanism for engaging the yarn end of the yarn package with the paper tube when the cradle arm supports the paper tube.

REFERENCES:
patent: 4127983 (1978-12-01), Munker
patent: 4841720 (1989-06-01), Kawasaki et al.
patent: 4848077 (1989-07-01), Kawarabashi et al.
patent: 4899531 (1990-02-01), Mack
patent: 4928476 (1990-05-01), Otoshima et al.
patent: 4979360 (1990-12-01), Kallmann et al.

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