Automatic film breaking mechanism of online machine

The utility model relates to the technical field of on-line machine automatic film breaking structures, in particular to an on-line machine automatic film breaking mechanism which comprises a steel base, a swing part is arranged at the top end of the steel base, a lifting part is arranged at the top end of the swing part, the lifting part comprises a vertical shaft, a swing arm is arranged on the outer side of the vertical shaft in a sleeved mode, and the swing arm is connected with the steel base. A heating piece is arranged on the front face of the swing arm and comprises a fixing base installed on the front face of the swing arm through a bolt, a hydraulic rod is movably connected to the front face of the fixing base, and the tail end of the hydraulic rod is movably connected to the surface of the push rod. The utility model is supported by the steel base, the swing arm connecting structure is connected by the aluminum profile, the weight of the whole swing arm is reduced, the film breaking part adopts a r