PS sheet production feeding device with screening function

The utility model relates to the field of PS sheet production, in particular to a PS sheet production feeding device with a screening function, which comprises a box body with an inclined bottom surface, a screening plate is transversely matched with the inner wall of the box body in a sliding manner, through screening holes are uniformly formed in the upper end surface of the screening plate, and a vibration power mechanism is arranged on the lower end surface of the screening plate. A conical disperser is arranged above the screening plate, the disperser is fixedly connected with the inner side wall of the box body through a transversely-arranged connecting rod, through dispersing holes are evenly formed in the upper surface of the disperser, a discharging port is formed in the lower portion of the side wall of one side of the box body, and an obliquely-arranged discharging groove body is fixedly installed on the outer side wall of the discharging port; the material particle screening device can accelerate