Large box set type transparent film packaging machine

The utility model discloses a large box type transparent film packaging machine which comprises a servo bag pushing assembly, a film feeding assembly, a machine head film cutting assembly, a bag pressing assembly, a main machine frame assembly, a rail forming assembly, an easy-to-tear line assembly, a film cylinder assembly, an up-down shaping assembly, a conveying assembly, an upper housing assembly and a lower housing assembly. The film feeding assembly is arranged above the servo bag pushing assembly, the machine head film cutting assembly is arranged below the film feeding assembly, the bag pressing assembly is arranged on the right side of the machine head film cutting assembly, the main machine frame assembly is arranged in the lower housing assembly, the rail forming assembly is arranged on the main machine frame assembly, and the easy-to-tear line assembly is arranged on the upper left portion of the rail forming assembly. The film cylinder assembly is arranged on the upper right portion of the rail f