The present invention relates to an automatic control machine for automatically spraying drugs onto crops while electric transfer is carried on the upper guide rail in a plastic house. More specifically, the automatic control device applies a ball valve instead of a solenoid valve to supply the medicine to the solenoid. It provides the medicine supply device of the automatic control device that can be turned on and off automatically like a valve. The drug supply device of the automatic control device proposed in the present invention includes a motor, a speed reducer, a ball valve, a rotor with protrusions, at least two limit switches, and mounting brackets, and the motor is mounted on the drive unit of the speed reducer. After exposing one end of the drive shaft of the reducer driven by the drive shaft, and mounting the mounting bracket for mounting the ball valve on one surface and a plurality of limit switches on the outer peripheral surface of the rotor in the reducer exposed the drive shaft, After connecting the rotor having the projection to the drive shaft and the shaft for opening and closing the ball valve integrally fixed, the limit switch is mounted so that the contact terminal is in contact with the rotation radius of the projection of the rotor, but one ball ball is opened The ball valves are connected to each other in a closed position and connected so that the motor is stopped when the limit switch is operated. And the waste device； The ball valve opening and closing device is characterized in that installed in the middle of the drug supply hose of the automatic control device.본 고안은 비닐하우스 내 상부의 안내레일을 타고 전동이송하면서 작물에 약제를 자동으로 살포하는 자동방제기에 관한 것으로, 더 구체적으로는 상기 자동방제기에 솔레노이드밸브 대신 볼 밸브를 적용하여 약제의 공급을 솔레노이드밸브처럼 자동으로 ON/OFF 할 수 있도록 한 자동방제기의 약제공급장치를 제공한다.본 고안에서 제안하는 자동방제기의 약제공급장치는, 모터, 감속기, 볼 밸브, 돌기를 가진 회전자, 최소 두 개의 리미트스위치, 장착브라켓을 구비하여서, 상기 모터를 감속기의 구동부에 장치하고, 상기 모터에 의해 구동되는 감속기의 구동축 일단을 노출되도록 한 다음, 상기 구동축이 노출된 감속기에 일면에 볼 밸브를 장착 및 다수의 리미트스위치를 회전자의 외주면에 장착할 수 있는 장
