Textiles: spinning – twisting – and twining – Apparatus and processes – Doffing or donning
Patent
1988-09-01
1990-02-13
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Doffing or donning
57266, 57275, D01H 900, D01H 904, D01H 918
Patent
active
048995304
ABSTRACT:
A yarn spinning, twisting or doubling machine having bobbin doffing and donning apparatus for the spindles of the machine, the apparatus comprising bobbin conveying means extending along and above a row of spindles, a series of bobbin grippers spaced at the same pitch as the spindles, each gripper being mounted for vertical movement between its respective spindle and the conveyor, each gripper being designed to hold or grip a bobbin at a point beyond one end of a package wound on the bobbin so that the grippers can lift the wound bobbin from its spindle for engagement by means on the conveyor and then release the bobbin for subsequent removal, or grip an empty bobbin on the conveyor and move it to its respective spindle and control means operable to move the conveyor after it has received the full doffed bobbins and to bring empty bobbins into line with the spindles so that the grippers can place empty bobbins on the spindles.
This equipment enables the bobbins to be accurately positioned on the spindles and removed from the spindles without the problems which arise from the use of inflatable sleeves.
REFERENCES:
patent: 3686847 (1972-08-01), Vignon
patent: 3791123 (1974-02-01), Kawauchi
patent: 3841074 (1974-10-01), Wachendorf et al.
patent: 3935699 (1976-02-01), Iida et al.
patent: 4145868 (1979-03-01), Morita et al.
patent: 4561243 (1985-12-01), Gaudino
patent: 4571930 (1986-02-01), Chiari et al.
James Mackie & Sons Limited
Watkins Donald
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