Constant feeder

The utility model discloses a constant feeder. The constant feeder comprises an air cannon and a feeding mechanism. A feeding port of the air cannon is formed in an air cannon box body. The upper portion of the air cannon box body is provided with a rotating shaft, the circumferential circle of the rotating shaft is provided with a blade installing sleeve, and blades are installed in the blade installing sleeve. One end of an air cannon shaft is connected with one end of an air cannon speed reducer, and the other end of the air cannon speed reducer is connected with an air cannon motor. The feeding mechanism is installed on the lower portion of the air cannon box body. A feeding motor of the feeding mechanism is installed at one end of a feeding speed reducer, the other end of the feeding speed reducer is connected with one end of the rotating shaft, the two ends of the rotating shaft are installed in a feeding machine shell, a spiral reamer is installed on the rotating shaft, the feeding machine shell is installed in the air cannon box body, and the lower portion of the feeding machine shell is provided with a discharging port. The constant feeder is reasonably and ingeniously designed in the air cannon, and the problems that a split structure is complex in operation and large in occupied space, lime is prone to caking in the conveying process, and transporting cannot be achieved are solved.