Automatic feeding machine

The utility model relates to an automatic feeding machine which comprises a bottom plate and a stock bin, and the stock bin is located at the top end of a fixing frame on the bottom plate. The device further comprises a feeding air cylinder, a first-stage jacking plate, a second-stage jacking plate, a conveying belt, a screw sliding frame, a translation air cylinder and a discharging sliding block. A lifting frame is arranged at the bottom end of a piston rod of the feeding air cylinder, the first-stage jacking plate and the second-stage jacking plate are both located on the lifting frame, and the first-stage jacking plate corresponds to the bottom end of the stock bin in position. The conveying belt is horizontally arranged above the second-stage jacking plate, the screw sliding frame is connected with the tail end of the conveying belt, and a straight vibrator is arranged at the bottom end of the screw sliding frame; a blanking plate is arranged at the tail end of the screw sliding frame, the blanking slidi