Method and apparatus for forming multi-layer coils from substant

Details Method and apparatus for forming multi-layer coils from substant Method and apparatus for forming multi-layer coils from substant

1986-10-23

1988-12-27

Jillions, John M.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

B65H 7500

Patent

active

047935669

ABSTRACT:
Before winding-up the printed products arriving in imbricated product formation, the thickness of the imbricated product formation travelling toward a winding mandrel, respectively toward a product coil or package forming thereupon, is regulated to a prescribed value. This is effected by spreading or compacting the printed products within the imbricated product formation. For this purpose a first conveyor device is driven at higher or lower speed than a second preceding conveyor device. The imbricated product formation of prescribed thickness is wound-up upon the winding mandrel together with a winding strap maintained under tension which always lies upon the outer side of the coil layer being formed. By regulating the thickness of the imbricated product formation to be wound-up so as to have a prescribed value which remains essentially constant throughout the winding-up procedure, it is possible to form product coils of essentially constant diameter with a prescribed constant length of winding strap independently of the thickness of the arriving printed products.

REFERENCES:
patent: 2925167 (1960-02-01), Lindberg
patent: 3671035 (1972-06-01), Reist
patent: 3749330 (1973-07-01), Gazzola
patent: 3842719 (1974-10-01), Fernandez-Rana et al.

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