Stock bin

The utility model belongs to the technical field of storage bins, and particularly relates to a bin which comprises a bin body with a cavity inside, the upper end and the lower end of the bin body areprovided with a first feeding port and a first discharging port respectively, the first feeding port and the first discharging port are communicated with the cavity, and an opening and closing door used for opening/closing the first discharging port is arranged at the first discharging port. A sliding rail is arranged at the position, close to the first feeding port, of the inner side wall of thebin body, the sliding rail is arranged in the circumferential direction of the first feeding port, a movement machine moving along the sliding rail is arranged on the sliding rail, and a hinge used for stirring raw materials in the bin body is hung on the movement machine. In the using process of the stock bin, a worker can control the exercise machine; the moving machine drives the hinge to movein the bin body, and in th