Heating disc structure

The invention provides a heating plate structure which comprises a base provided with a vent hole; the base plate is arranged on the base, the base plate is provided with an air receiving hole communicated with the vent hole, the surface, away from the base, of the base plate is provided with an air flow channel, and the air flow channel is communicated with the air receiving hole; the driver is provided with a rotating part and a telescopic part, the rotating part is rotatably arranged on the chassis, and the rotating part can drive the telescopic part to rotate; the top tray covers the bottom tray to form an air cavity, and the top tray is provided with a plurality of exhaust holes corresponding to the airflow channel; and the shielding rod is arranged in the air cavity and connected with the telescopic part, and the shielding rod can shield part of the exhaust hole. The temperature of the surface of the heating disc can be adjusted, so that the temperature of the surface of the heating disc is uniform, and