▎ 摘　　要

NOVELTY - The utility model relates to the graphene of film preparation device, specifically to a device for preparing the graphene film, comprising a base and an ultrasonic transducer, the top of the base is provided with a water storage tank, the left and right side of the base top part provided with a control groove, the bottom of the control groove is provided with a damping pad, the damping pad is provided with a motor, the output end of the motor is rotatably provided with a screw rod, the control groove is slidingly provided with an upright post, the bottom of the upright post is provided with a screw hole, a motor, a screw rod, an upright post, a transverse rod, hook is convenient to put the oscillating plate into the water storage tank, through the ultrasonic transducer, the mixed liquid in the oscillating plate can be defoaming, through the heating plate, the fluidity of the mixed solution can be increased, and the defoaming efficiency of the ultrasonic transducer can be further increased.