Particle size screening device

The utility model provides a particle size screening device, which relates to the technical field of particle size screening devices, and comprises a base, a motor is arranged on one side surface of the base, a fixing frame penetrates through the outer surface of the motor, the fixing frame is fixedly connected with the motor, and one end, far away from the motor, of the fixing frame is fixedly connected with the base. A shaking mechanism is arranged on the top of the base and comprises a sliding block, and the sliding block is arranged in a sliding groove formed in the base. According to the color master batch particle size screening device disclosed by the utility model, the shaking mechanism is arranged, so that the color master batch particles which are fed at one time can be shaken by the color master batch particle size screening device, the color master batch particles can be screened by the screening mechanism in a layered manner according to the particle sizes of the color master batch particles, and