Machine and method for the formation of coreless logs of web mat

Details Machine and method for the formation of coreless logs of web mat Machine and method for the formation of coreless logs of web mat

1993-07-13

1997-06-17

Jillions, John M.

Winding, tensioning, or guiding

Convolute winding of material

With particular drive

2425422, B65H 1820, B65H 1926

Patent

active

056390467

ABSTRACT:
There is disclosed a rewinding machine for the production of logs (R) of web material (N) without central winding core. It comprises a first winder roller (11) around which the web material is driven and a second winder roller (13) defining, with the first winder roller, a nip (14) through which the web material passes. A member (21) is also provided which is movable relative to the first winder roller (11) and which is cyclically moved toward the surface of said first winder roller with the web (N) between the member (21) and the roller (11) in order to pinch and thus brake the web material between said member (21) and the first winder roller (11), thereby tearing the web and causing the free edge generated by the interruption of the web material to start winding up on itself.

REFERENCES:
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patent: 3850381 (1974-11-01), Moore
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patent: 5402960 (1995-04-01), Oliver et al.
European Search Report and Annex to European Search Report, May 25, 1994.
D. Satas "Web processing and converting technology and equipment", 1984, Van Nostrand Reinhold Co., N.Y. pp. 385,386,394-396.

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