Patent ID: 7757458
Filing Date: 2010-07-20
Classification: B29C,B65B

Abstract:
1. A packaging machine for packaging products in a plastic film, the packaging machine comprising: at least one longitudinal cutting and welding bar actuated in an up-and-down movement by at least one first piston, supported by a first supporting structure of the packaging machine; at least one transverse cutting and welding bar, the transverse cutting and welding bar being independent from the longitudinal cutting and welding bar and actuated in an up-and-down movement by at least one second piston supported by a second supporting structure of the packaging machine; and controlling and managing means adapted to control and program an operation of at least the first piston and the second piston; where the controlling and managing means are adapted to keep the transverse cutting and welding bar unmoving and to actuate only the longitudinal cutting and welding bar; and where the transverse cutting and welding bar comprises a first cutting and welding portion having a “V”-shaped section and a second welding portion adapted to realize a small welded plate, the small welded plate not having cuts, on the plastic film next to an angle on the film between a transverse cut T