Patent ID: 6918227

Claim:
A device for end closing tubular wrappings ( 2 ) of products ( 3 ), the device comprising: a scissor-type parting device ( 8 ), in turn comprising two arms ( 23 ) movable with respect to each other between a closed rest position and an open stretch position; first actuating means ( 10 , 12 ) for imparting to said parting device ( 8 ) an insertion stroke and an opposite extraction stroke in a first given direction ( 11 ) with respect to an end portion ( 6 ) of the tubular wrapping ( 2 ) projecting from a corresponding end ( 7 ) of the relative product ( 3 ); second actuating means ( 30 ) for moving said arms ( 23 ) from said closed position to said open position, to deform said end portion ( 6 ) into a duckbill shape and define, on the deformed end portion ( 6 ), two facing, substantially flat walls ( 41 ) and for enabling said arms ( 23 ) to exert substantially constant pressure on said end portion ( 6 ) of the tubular wrapping ( 2 ) throughout the extraction stroke; two folding-sealing members ( 38 ) movable in opposite senses in a second direction ( 39 ) crosswise to said first direction ( 11 ) to seal said walls ( 41 ) to each other; and locking means ( 31 ) for keeping said arms ( 23 ) in the closed rest position during the insertion stroke; wherein said second actuating means ( 30 ) are elastic actuating means.