Working principle of automatic coater: The working principle of automatic coater used for screen printing and plate making is the same, but its functions vary according to different models and different manufacturers. The screen coater is equipped with a device that can clamp the screen frame on the vertical frame. The front and rear of the screen area is a horizontal coating mechanism, which is composed of the coating tank and the mechanical or pneumatic components that control the angle and pressure of the coating tank.
The two ends of the coating mechanism are installed on the vertical support arm of the coating machine, and the coating mechanism moves up and down through the transmission of belt, chain or cable to coat along the surface of the screen. The transmission mechanism is connected to the servo or variable frequency motor to make it operate smoothly and control the position of the coating mechanism.
Before coating, load the clean and tensioned screen from the front of the coating machine, and some models can also load the screen from the side face. Among the models designed for large-format screen frame, side mounting is more common. Because the screen frame is large and bulky, side mounting can reduce the lifting and moving amount. When the automatic screen coater and other automatic screen processing equipment (such as cleaning equipment, regeneration equipment, drying device and developer) are running online, it is more convenient to mount plates from the side face.