Vibrating screen for plastic extruder

The utility model relates to the technical field of screening equipment, in particular to a vibrating screen for a plastic extruder, which comprises a base, a vibrating motor is fixedly mounted in the middle of the upper end of the base, the output end of the vibrating motor is fixedly connected with a vibrating box, and the left wall and the right wall of the vibrating box are both fixedly connected with two fixing plates. A screening assembly is jointly arranged at the upper ends of the two transverse fixing plates, a collecting frame is slidably connected to the lower wall of the vibrating box, a box door is movably connected to the front end of the vibrating box, an observation window is arranged in the middle of the front end of the box door, a feeding port is fixedly connected to the middle of the upper end of the vibrating box, and an electric push rod is fixedly connected to the middle of the front end of the feeding port. The telescopic end of the electric push rod is fixedly connected with a cover p