Crushing and screening device for feed production

The utility model discloses a crushing and screening device for feed production, and belongs to the technical field of feed production. Comprising a base, vertical plates are arranged on the two sides of the upper portion of the base correspondingly, a screening box is movably connected between the vertical plates, supporting columns are arranged at the tops of the vertical plates correspondingly, a box body is arranged at the tops of the supporting columns, and a first rotating rod and a second rotating rod are rotationally arranged in the box body correspondingly; and sliding strips are arranged on the two sides of the screening box correspondingly, the vertical plates are provided with sliding grooves matched with the sliding strips correspondingly, springs are arranged on one sides in the sliding grooves, rolling wheels are arranged on one sides of the screening box, mounting blocks are arranged on one sides of the vertical plates, first motors are mounted on one sides of the mounting blocks, and cams are