Particle screening device for plastic processing

The utility model relates to the technical field of plastic production and processing, in particular to a particle screening device for plastic processing, which comprises a shell, a screening net is inserted into one side of the shell, a supporting plate is fixedly connected in the shell, a servo motor is fixedly mounted at the top of the supporting plate, a cam is fixedly connected to the output end of the servo motor, and a motor is fixedly connected to the cam. The interior of the shell is fixedly connected with a connecting shaft, and one end of the connecting shaft is rotationally connected with a connecting rod. Compared with the prior art, the plastic particle screening device has the advantages that by arranging the knocking hammer, when plastic particles are clamped in the meshes of the screening net, the servo motor is started, the connecting rod drives the knocking hammer to knock the bottom of the screening net, and the plastic particles clamped in the meshes of the screening net come out of the