Screening device for limestone production

The screening device for limestone production comprises a machine body, two fixing plates are fixedly installed on the machine body, one end of a screen frame is rotatably installed on the sides, close to each other, of the two fixing plates, the other end of the screen frame is installed on the machine body through two elastic assemblies, and a screen mesh is arranged in the screen frame. A vibrating motor is fixedly installed on the bottom side of the screen frame, a sliding groove is formed in the machine body, a sliding block is movably installed in the sliding groove, a feeding assembly is arranged on one side of the sliding block, one end of a threaded rod is rotatably installed on the inner wall of one side of the sliding groove, and the other end of the threaded rod penetrates through the sliding block in a threaded mode, extends out of the machine body and is fixedly provided with a second gear. The limestone is poured to different positions of the top of the screen, the problem that the limestone is