Method and device for winding cross-wound bobbins

Details Method and device for winding cross-wound bobbins Method and device for winding cross-wound bobbins

1989-02-23

1991-01-29

Petrakes, John

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 18CS, 242 18DD, 242 356R, 242 45, B65H 5442, B65H 5938

Patent

active

049880489

ABSTRACT:
Method and apparatus includes determining the actual outer diameter of a bobbin or empty casing in the axial region thereof upon which a thread is being taken up. The drive velocity of the bobbin or empty casing is then changed relative to operating velocity as a function of the determined actual outer diameter of the bobbin or empty casing. Such adjustment corrects the circumferential velocity of the bobbin or empty casing in the take-up region of the thread for correspondence with the thread supply velocity. Otherwise, the circumferential velocity in such take-up region would deviate from the thread supply velocity on account of the conicity of the bobbin or empty casing.

REFERENCES:
patent: 3938306 (1976-02-01), Bous
patent: 4089480 (1978-05-01), Kamp
patent: 4105166 (1978-08-01), Mackie
patent: 4501116 (1985-02-01), Schuller et al.
patent: 4789107 (1988-12-01), Hauser et al.

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