Robot for a double twister

Details Robot for a double twister Robot for a double twister

1992-03-27

1993-02-09

Matecki, Katherine

Textiles: spinning, twisting, and twining

Apparatus and processes

Doffing or donning

57 5852, 57261, 57264, 57268, 57281, D01H 910, D01H 786

Patent

active

051844532

ABSTRACT:
An automatic doffing method for a double twister and a double twister movable along each unit of the double twister which is provided with a yarn supply package changing mechanism for replacing an empty feed package supported on a spindle of each unit with a feed package. A pick finding mechanism for drawing a yarn end from the feed package, a threading mechanism for inserting a yarn end into an axial hole of the feed package by way of an air flow, a doffing mechanism for removing a full winding package supported on the cradle arm of each unit and supplying a take-up tube to the cradle arm, and a yarn hanging mechanism for hanging a yarn end of the feed package on an empty take-up tube when the cradle arm supports the take-up tube.

REFERENCES:
patent: 4127983 (1978-12-01), Monker
patent: 4232509 (1980-11-01), Ronner et al.
patent: 4236374 (1980-12-01), Marbacher
patent: 4559773 (1985-12-01), Stahlecker
patent: 4671054 (1987-06-01), Grundmann et al.
patent: 4848076 (1989-07-01), Ueda et al.
patent: 4848077 (1989-07-01), Kawarabasni et al.
patent: 4928475 (1990-05-01), Matsui et al.
patent: 4928476 (1990-05-01), Otoshima et al.

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