Control method for winding

Details Control method for winding Control method for winding

2005-04-05

2005-04-05

Rivera, William A. (Department: 3654)

Winding, tensioning, or guiding

Convolute winding of material

Simultaneous winding

C242S413900

Reexamination Certificate

active

06874723

ABSTRACT:
A winding apparatus, such as a slitter rewinder, designed to shorten a distance between an unwinding shaft and a winding shaft, thereby downsizing the apparatus and attaining a significant cost reduction. To that end, in unwinding a web from the unwinding shaft, either to wind it onto the winding shaft or to slit it in the elongate direction into plural narrow-width webs and separate them alternately vertically or longitudinally, followed by winding onto respective winding shafts, the unwinding shaft is driven at a preset web speed, the winding shaft is driven at a preset web tension, guide rollers for guiding the web are disposed between the unwinding and winding shafts to thereby leave the guide rollers to rotate freely by contact with the web without their direct driving.

REFERENCES:
patent: 3372320 (1968-03-01), Boyum et al.
patent: 3603521 (1971-09-01), Ormsby
patent: 3982710 (1976-09-01), Teumer
patent: 4166590 (1979-09-01), Dennhardt
patent: 5060881 (1991-10-01), Bogucki-Land
patent: 5178341 (1993-01-01), Ditto
patent: 5697573 (1997-12-01), Fukuchi et al.
patent: 5909855 (1999-06-01), Jorkama et al.
patent: 6158687 (2000-12-01), Widmer

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