Drying device for printing machine

The utility model belongs to the technical field of printing machines, and particularly relates to a drying device for a printing machine, which comprises a base, a support frame and a drying component, the top of the base is fixedly connected with a pair of supporting plates. The supporting frame is fixedly connected to the top of the supporting plate, and a sliding groove is formed in the top of the supporting frame. The drying assembly is arranged on the supporting frame. The drying assembly comprises a first motor, a lead screw, a sliding block and a drying mechanism. The first motor is fixedly connected to the side wall of the supporting frame. The lead screw is fixedly connected to the output end of the first motor. The sliding block is arranged on the outer side wall of the lead screw in a sleeving mode and connected with the lead screw through a ball screw nut pair, and the sliding block is in sliding fit with the inner side wall of the sliding groove. The drying mechanism is arranged at the bottom of