The utility model discloses an automatic quantitative
powder raw material filling device for filling firework inner barrels, which comprises a rack, a turntable device, a stock bin, a quantitative plate device, a
punching needle device and a turntable positioning device, the turntable device, the stock bin and the
punching needle device are arranged on the rack, the turntable device is provided with a plurality of mounting stations of the quantitative plate device, and the turntable positioning device is arranged on the mounting stations of the quantitative plate device. The quantitative plate device comprises a quantitative plate, a valve plate, a quantitative bottom plate and a quantitative plate opening and closing device, a plurality of quantitative holes are formed in the quantitative plate, through holes are correspondingly formed in the valve plate, the quantitative plate opening and closing device controls alignment or
dislocation of the through holes and the quantitative holes, and raw materials are punched out of the quantitative plate through the
punching needle device. Raw materials are supplemented while filling is achieved through the
rotating disc structure, a plurality of
firecracker cakes can be filled at the same time, the whole structure is simple and easy to maintain, and the device is simple in structure, safe, reliable, rapid, efficient and capable of reducing the cost.