Automatic feeding device for injection molding machine

The automatic feeding device for the injection molding machine comprises a box body, the front side of the box body is movably connected with a box door through a hinge, the top of the left side of the front side of the box door is connected with a controller through bolts, and the two sides of the rear side of the box body are connected with crushing mechanisms through bolts; screening mechanisms are fixedly connected to the two sides of the top of an inner cavity of the box body, the top of the box body communicates with a feeding pipe, the left side of the feeding pipe communicates with a protective shell, the right side of the protective shell is connected with the left side of the box body through bolts, and the output end of a servo motor penetrates into an inner cavity of the protective shell and is fixedly connected with a rotating rod. Through cooperation of the spring, the damper, the filter screen, the vibration motor and the electric valve, the screening function is achieved, raw materials needing