Film smoothing device of printing machine

The utility model discloses a printing machine film smoothing device, and relates to the technical field of printing machines. Comprising a base and a controller, the two sides of the top end of the base are in rolling connection with a first smoothing roller and a second smoothing roller through connecting bases respectively, a tensioning mechanism is arranged between the first smoothing roller and the second smoothing roller and comprises a supporting roller, an adjusting assembly is arranged at the bottom of the supporting roller, and lifting of the supporting roller is adjusted through the adjusting assembly. Preferably, the adjusting assembly comprises a first fixing shaft, a bottom plate, a top hinge plate, a bottom hinge plate and a side fixing plate. The tensioning mechanism is arranged between the two smoothing rollers, upward movement of the supporting rollers can be achieved by starting the bidirectional electric telescopic rods, so that a film is jacked upwards, the tightening degree of the film i