Method and apparatus for producing coreless roll assemblies of s

Details Method and apparatus for producing coreless roll assemblies of s Method and apparatus for producing coreless roll assemblies of s

1976-06-29

1977-07-12

McCarthy, Edward J.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 81, B65H 7500

Patent

active

040349284

ABSTRACT:
A method and apparatus for rolling discrete successive sheets of material into a coreless roll assembly comprising means for folding successive sheets of material and guiding and advancing the sheets to a winding station which comprises an axially translatable spindle having ports in its circumferential surface coupled to an air supply. Cooperating with the spindle are translatable belt guide means which substantially circumscribe the spindle so as to guide and aid the advancement of the folded sheets around the spindle, and timing means actuated after a predetermined number of sheets are wound onto the spindle for forcing air out through the ports in the spindle to provide an air bearing layer thereat. The spindle is then axially retracted from the bore of the roll thereby discharging the roll assembly.

REFERENCES:
patent: 2270043 (1942-01-01), Fourness
patent: 2599942 (1952-06-01), Roen
patent: 3174700 (1965-03-01), Lemaire
patent: 3802639 (1974-04-01), Dowd
patent: 3844502 (1974-10-01), Toy
patent: 3918698 (1975-11-01), Coast
patent: 3957220 (1976-05-01), Beck

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