Abstract: An automatic high speed packaging machine for wrapping packages in polymer film is disclosed wherein the film seal at the sides and ends of the packages is made at a high rate of speed as the packages travel through the machine. The packages travel continuously in a straight line through the machine. The packages are delivered at the input end of the machine by an in-feed conveyor into a film inverting head where the packages are surrounded by longitudinally half-folded polymer film. Thereafter, the packages are transported to a side sealing mechanism which forms a longitudinal seal in the film on the side opposite the fold. Finally, the packages are transported to a traveling end seal mechanism where a lateral seal is formed at each end of the package and the film web connecting succeeding packages is severed. The machine produces packages which have a sealed film wrap around the entire package.

Abstract: An automatic high speed packaging machine (10) for wrapping packages (P) in polymer film (32) is disclosed wherein the film seal at the sides and ends of the packages (P) is made at a high rate of speed as the packages (P) travel through the machine (10). The packages (P) travel continuously in a straight lien through the machine (10). The packages (P) are delivered at the input end of the machine (10) by an in-feed conveyor (20) into a film inverting head (40) where the packages (P) are surrounded by longitudinally half-folded polymer film (32). Thereafter, the packages (P) are transported to a side sealing mechanism (50) which forms a longitudinal seal in the film (32) on the side opposite the fold. Finally, the packages (P) are transported to a travelling end sealing mechanism (70) where a lateral seal is formed at each end of the package (P) and the film web (32) connecting succeeding packages (P) is severed.