Patent ID: 8079201
Filing Date: 2011-12-20
Classification: B65B

Abstract:
1. A wrapping machine for wrapping a product with a plastic film comprising, a supporting frame with which a ring arrangement is associated that rotates around a wrapping axis of said film around said product and supports a carriage arranged for supporting a reel of said film and for supporting a first roller and a second roller cooperating for unwinding and stretching said film, a first motor fixed to said supporting frame and coupled with said first roller, a second motor fixed to said supporting frame and coupled with said second roller, a driving arrangement for coupling said first motor and said second motor with said first roller and with said second roller, respectively, said driving arrangement comprising a flexible driving arrangement, wherein said flexible driving arrangement comprises a first driving belt and a second driving belt rotated by said first motor and by said second motor, respectively, and acting on a first driven belt and on a second driven belt arranged for rotating said first roller and said second roller, respectively, said wrapping machine further comprising a motion transferring arrangement supporting and connecting said first driving belt and said first driven belt, and said second driving belt and said second driven belt, said motion transferring arrangement being arranged for transferring motion from said first driving belt to said first driven belt and from said second driving belt to said second driven belt, said motion transferring arrangement comprising a further ring arrangement that is rotatable around said wrapping axis.