Weighing feed hopper for hydraulic scrap steel metal packing machine

The invention discloses a weighing feed hopper for a hydraulic scrap steel metal packing machine; the weighing feed hopper comprises a hydraulic scrap steel metal packing machine body, a rotating shaft groove, a rotating shaft, a first connecting rod and a weighing feed hopper body, a limiting block is connected with the weighing feed hopper body through a locking device, and the rotating groove is connected with the limiting block through a rotating device. And a third connecting rod groove is connected with the bearing plate through a lifting device. A limiting rod groove, a limiting rod, a first spring, a first spring groove, a metal ball, a metal ball groove and a second connecting rod are arranged, a limiting block is moved, the limiting rod is moved out of the limiting rod groove, then the limiting block is pushed, the metal ball is inserted into a rotating groove, then the limiting block is rotated, and the limiting block move on the inner wall of the weighing feed hopper body; and therefore, the purpo