Unwinding apparatus for paper or board web rolls

Details Unwinding apparatus for paper or board web rolls Unwinding apparatus for paper or board web rolls

1988-07-18

1989-11-21

Levy, Stuart S.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 586, 242 583, 156502, B65H 1918, B65H 1920

Patent

active

048816957

ABSTRACT:
An intermittently operating unwinding apparatus has a separating device with which a web-end is formed on the lifting-out of an empty spool from the guide ways of an unwind unit. A holding device holds the web-end in a plane which extends parallel to the guide ways, on which a new winding roll located in waiting position rests with its roll axle. The machine has a splicing unit with a cross member arranged parallel to the guide ways to which the beginning of the web of the new parent roll can be joined. During transport of the new parent roll out of the waiting position into its unwinding position the splicing unit is moved by dogs engaging at the roll axle against the holding device and the web-beginning joined to the web-end.

REFERENCES:
patent: 3841944 (1974-10-01), Harris
patent: 3858819 (1975-01-01), Butler, Jr.
patent: 4564413 (1986-01-01), Murakami
patent: 4668328 (1987-05-01), Kyytsonen

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