Tray discharging device

The utility model provides a tray discharging device which comprises a base plate, the base plate is provided with a material preparing machine frame and a material ejecting machine frame, the two sides of the material preparing machine frame are provided with first brackets used for carrying the bottoms of the two sides of a tray, the material preparing machine frame is provided with a first material supporting air cylinder driving the first brackets to move away from the bottom of the tray, and the material ejecting machine frame is provided with a transverse moving linear sliding table module. A lifting linear sliding table module is installed on a sliding table of the transverse moving linear sliding table module, and a sliding table of the lifting linear sliding table module is provided with a material jacking frame which is located below the bracket and can jack up the tray. Therefore, the stacked trays can be automatically taken out one by one and transferred to a machining station, and manpower consum