Abstract: A wrapping machine has a film dispensing unit (1), which includes first supporting elements (2) and first deflecting elements (51 . . . 510) for a first wrapping film (4) and second supporting elements (6) and a second deflecting element (9) for a second wrapping film (8). The second deflecting element (9) is movable between a first position (I) and a second position (II) by an actuator (10). In the first position (I), the end of the second wrapping film (8) is in contact with the first wrapping film (4) to cause the wrapping films to adhere to each other during the wrapping process. In the second position (II), the second deflecting element (9) is at a distance from the first wrapping film (4) so that the second wrapping film (9) is clear of contact with and adhesion to the first wrapping film (4).
Abstract: A unit (3) for sterilizing strip packaging material (2) with preapplied opening devices (5) on a packaging machine (1) for packaging pourable food products, the unit (3) having a bath (8) for containing a sterilizing agent in which the material (2) is fed continuously, and an aseptic chamber (15) having an input (12) connected to an output of the bath (8); the aseptic chamber (15) houses two drying rollers (20) cooperating with opposite faces of the material (2) and having respective recesses (20a) at a longitudinal portion (2a) of the material (2) fitted with the opening devices (5), and two nozzles (27) for directing sterile air onto the longitudinal portion (2a) of the material (2).