Patent ID: 8621832

Claim:
A device for producing cuboid-shaped hard packs ( 10 ) for cigarettes having an outer wrapping of shrinkable film ( 17 ), the packs ( 10 ) having a large-area front side ( 11 ) and a corresponding rear side ( 12 ), wherein heat is supplied in the region of the front side ( 11 ) and the rear side ( 12 ) following a sealing station ( 20 ) for the thermal sealing of folding tabs of the film ( 17 ) in the region of a shrinking unit, wherein: a) the shrinking unit is configured as a continuously rotating shrinking revolver ( 19 ) having receptacles ( 21 ) spaced apart from each other along the circumference, for one pack ( 10 ) each; b) each receptacle ( 21 ) has at least two heating plates ( 22 , 23 ) which, during the conveyance of the packs ( 10 ) by the shrinking revolver ( 19 ), bear against large-area, mutually opposing pack surfaces, namely against front side ( 11 ) and rear side ( 12 ); c) the heating plates ( 22 , 23 ) are movable relative to the packs ( 10 ) and, at least in the region of a receiving station ( 34 ) for the packs ( 10 ) and in the region of a delivery station ( 36 ), the heating plates ( 22 , 23 ) are raised from the packs ( 10 ); and d) each pack ( 10 ) is fixed in the respective receptacle ( 21 ) of the shrinking revolver ( 19 ) by movable holding jaws ( 28 , 29 ) which bear against exposed, mutually opposing pack faces ( 15 , 16 ) not covered by the heating plates ( 22 , 23 ) and which are movable independently of the heating plates ( 22 , 23 ).