Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1987-09-08
1989-01-17
Levy, Stuart S.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 56A, 242 56R, B65H 1928, B65H 1926
Patent
active
047983515
ABSTRACT:
The apparatus for winding a foil sheet, especially a plastic foil sheet, on a roll core is used in a step in the winding of a foil sheet into a foil sheet roll with a foil sheet winding machine. The apparatus comprises a contacting roll, a roll core receptacle and a cross cutter. A roll core put in the roll core receptacle is placed on the contacting roll and is drivable by it with the intervening foil sheet running to the downstream foil sheet roll. The foil sheet is cuttable with the help of the cross cutter between the roll core and the downstream foil sheet roll. Further the leading end piece of the next following foil sheet formed by cutting is receivable by the roll core. Above the roll core received in the roll core receptacle a foil sheet press device is mounted which is placeable on the roll core by a pivot motion and has a press element travelling with it during pivoting. The press element, advantageously a press belt, embraces the roll core on the side of the roll core facing away from contacting roll and forms an engaging wedge space with the roll core. An air blower tube is located between the engaging wedge space and the cross cutter under the next uncut foil sheet. The blower air streams from this blower tube are directed in the engaging wedge space and/or substantially parallel to the engaging direction of the engaging wedge space to assist in engaging the next following foil sheet on the roll core.
REFERENCES:
patent: 2676764 (1954-04-01), Aulen
patent: 3328989 (1967-07-01), Stephan
patent: 3883084 (1975-05-01), Yamaguchi et al.
patent: 4339092 (1982-07-01), Benoy et al.
Achterwinter Norbert
Halter Hartmut
Zimmermann Paul H.
Dubno Herbert
duBois Steven M.
Levy Stuart S.
Reifenhauser GmbH & Co. Maschinenfabrik
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