Printing device for processing glass plates of aluminum alloy doors and windows

The invention relates to the technical field of printing equipment, and discloses a printing device for processing a glass plate of an aluminum alloy door and window, the printing device comprises a sliding rail, the two sides of the sliding rail are rotationally connected with transmission wheels, the two transmission wheels are in transmission connection through a belt, and the top and the bottom of one side of the sliding rail are fixedly connected with linear guide rails. An electromagnet is matched with a permanent magnet, a first clamping block, a guide plate and a second clamping block, a belt is clamped when the equipment is started, the belt is kept in a tightened state, the situation that the precision of a printing head is reduced due to overall abrasion of the belt is avoided, the printing quality of printing is guaranteed, and meanwhile after printing of each glass plate is completed, the printing efficiency is improved. The clamping of the belt is released, and the servo motor is matched with th