Winding – tensioning – or guiding – Convolute winding of material – With cutting – perforating – or notching
Patent
1994-08-26
1995-11-07
Darling, John P.
Winding, tensioning, or guiding
Convolute winding of material
With cutting, perforating, or notching
83305, 83677, B26D 162, B65H 1920
Patent
active
054641667
ABSTRACT:
A method and apparatus for automatic roll transfer allows a film web winding onto a completed roll on a continuous film winder to be severed, and an incoming edge of the film web to be transferred onto a new core. A cylindrical housing having an external surface with an aperture extending therethrough is rotatably supported along a longitudinal axis thereof. A knife is held in a retracted position within the housing, the knife movably supported by the housing so as to allow the knife to move along a direction orthogonal to the longitudinal axis from the retracted position through the aperture to a cutting position. The apparatus includes elements to rotate the housing, to position the rotating housing adjacent to the film web, and to subsequently release the knife, thereby causing the knife to move from the retracted position to the cutting position and sever the film web. The incoming edge of the film web is transferred onto the core by utilizing a static attraction between the core and the film web, the static attraction being produced by a static generator positioned adjacent to the core.
REFERENCES:
patent: 3369766 (1968-02-01), Herman
patent: 3794255 (1974-02-01), Harmon et al.
patent: 3910518 (1975-10-01), Yamaguchi et al.
patent: 3944151 (1976-03-01), Lee et al.
patent: 3997387 (1976-12-01), Yamaguchi et al.
patent: 4197154 (1980-04-01), Pfaff, Jr.
patent: 4339092 (1982-07-01), Benoy et al.
patent: 4415610 (1983-11-01), Choinski
patent: 4529141 (1985-07-01), McClenathan
patent: 4530265 (1985-07-01), Lee et al.
patent: 4678133 (1987-07-01), Suzuki
patent: 5190232 (1993-03-01), Brandon et al.
Hughbanks Richard A.
Kirkpatrick, III W. Mark
Darling John P.
E. I. Du Pont de Nemours and Company
Magee Thomas H.
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