Raw material anti-blocking device

The raw material anti-blocking device comprises a stock bin and a belt weigher which are vertically arranged at an interval, a square-cone-shaped anti-blocking transition bin, a material flow stabilizing assembly and an integrated shut-off valve are sequentially installed at an opening in the lower portion of the stock bin from top to bottom, and a discharging space exists between the bottom end of the integrated shut-off valve and the surface of the belt weigher; the material flow stabilizing assembly comprises a connecting sleeve, an unblocking piece and a driving part, and the connecting sleeve is connected with a lower opening of the anti-blocking transition bin and a valve port of the integrated shut-off valve; according to the raw material anti-blocking device, the blocking piece capable of penetrating through the valve port of the integrated shut-off valve is provided, and when the valve port of the integrated shut-off valve is blocked by materials, the unblocking piece penetrates through the valve por