Method and apparatus for carrying out doffing and donning operat

Details Method and apparatus for carrying out doffing and donning operat Method and apparatus for carrying out doffing and donning operat

1974-11-21

1977-02-08

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

57 34R, 242 355A, B65H 6704

Patent

active

040068641

ABSTRACT:
An improved method and apparatus for carrying out the doffing and donning operation of a spinning machine such as an open-end spinning machine. A suction nozzle is carried along the lengthwise direction of the spinning machine at a position before and above the take-up mechanisms of the spinning machine at the time of carrying out the doffing and donning operation. The suction nozzle is capable of holding a leading end portion of a yarn delivered from each spinning unit and this leading end portion of the yarn is caught by a fresh bobbin before the bobbin is mounted on a cradle of the take-up mechanism from outside the spinning machine and, then, the bobbin is mounted on the cradle and the take-up operation is commenced. The suction nozzle is capable of being stopped at any position along the passage thereof by manual operation.

REFERENCES:
patent: 3018503 (1962-01-01), Hijiya et al.
patent: 3791126 (1974-02-01), Kose et al.
patent: 3801030 (1974-04-01), Kobatake et al.
patent: 3820730 (1974-06-01), Endo et al.
patent: 3842580 (1974-10-01), Franzen

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