The invention discloses an automatic batching device, which comprises a rack and a controller, wherein a leakage hopper is arranged above the rack, a stirrer is arranged in the leakage hopper, a quantitative batching
barrel is arranged below the leakage hopper, and a grain fullness sensor is arranged in the quantitative batching
barrel; a blocking plate is arranged between the lower end of the material leaking hopper and the quantitative batching
barrel, an air cylinder is arranged on one side of the blocking plate, and the end of the blocking plate is fixedly connected with a telescopic rod of the air cylinder; a funnel-shaped bottom plate is arranged at the lower end of the quantitative batching cylinder in a blocking manner, a
discharge port is formed in the bottom plate and connected with a
discharge pipe, an automatic valve is arranged at the position, close to the
discharge port, of the discharge
pipe, and a photoelectric switch is arranged at the discharge port; a
servo motor isarranged below the quantitative batching barrel, an output shaft of the
servo motor is fixedly connected with a lead screw, the lead screw extends upwards to the upper end of the quantitative batching barrel, the lead screw is in threaded connection with a sliding block, and the discharging
pipe penetrates through the sliding block and is fixedly connected with the sliding block. The device can automatically and quantitatively prepare materials and is high in production efficiency.