Membrane paper winding and unwinding mechanism of printing machine

The utility model belongs to the technical field of printing machines, and particularly relates to a film paper winding and unwinding mechanism of a printing machine, the printing machine is provided with a processing channel, an inlet and an outlet of the processing channel are respectively provided with an inclined operation table, the film paper winding and unwinding mechanism comprises a rack and a winding and unwinding roller set, and the rack is fixedly arranged above the printing machine. The winding and unwinding roller set comprises a winding roller and an unwinding roller which are rotationally connected to the rack, and a driving device used for driving the winding roller to rotate, and the winding and unwinding roller set is used for pulling film paper to move in a processing channel of the printing machine. According to the device, the whole operation can be completed by only one worker in the whole process through the film paper winding and unwinding mechanism, manpower is saved, the operation s