Automatic glue adding mechanism of glue dispenser

The invention discloses an automatic glue adding mechanism of a glue dispenser, the automatic glue adding mechanism comprises a controller, a mounting seat and a glue pushing mechanism arranged on the mounting seat, the glue pushing mechanism comprises a bottom plate, a clamping assembly, a heating assembly and a glue pushing assembly; the glue pushing assembly comprises a sliding rail arranged on the bottom plate, a sliding block in sliding connection with the sliding rail, a servo motor for driving the sliding block to move in the length direction of the sliding rail and a push rod arranged at the front end of the sliding block, and the servo motor is connected with the controller; the clamping assembly comprises an upper clamping block and a lower clamping block, the lower clamping block is fixed to the front end of the bottom plate, the upper clamping block and the lower clamping block are connected in an opening and closing mode, and opposite notches are formed in the lower end of the upper clamping bloc