Printing device used for plastic packaging bag production

The invention discloses a printing device used for plastic packaging bag production. The printing device comprises a bottom plate and a set of side plates symmetrically arranged on one side of the topend of the bottom plate, a box body is arranged in the middle of the top end of the bottom plate, a protection plate is fixedly arranged on the side, facing the side plates, of the top end of the boxbody, and a bin is formed in the box body. A feeding port and a discharging port are formed in the middles of the top ends of the two sides of the box body correspondingly, a positioning device cooperating with the discharging port is fixedly arranged at the top end of the side, facing the side plates, of the box body, and a set of rectangular grooves allowing a protective net to be fixedly installed is symmetrically formed in the sides, facing the side plates, of the two sides of the box body. According to the printing device used for plastic packaging bag production, printed raw materials can be dried, the situation