The working principle of the automatic spray gun: the paint is placed in the tank, the trigger is pulled, the compressed air enters the spray gun, and the air passes through the air cap nozzle to form a partial vacuum. The paint is sucked to the opened nozzle, forming a misty jet. The fan-shaped mist jet is formed under the pinching of the air pressure of the side nozzle.
The main components of the automatic spray gun function:
① Air cap: The compressed air is introduced into the paint flow to atomize the paint liquid to form a mist;
② The center hole of the nozzle: form a vacuum to suck out the paint liquid;
③ The upper side hole of the nozzle: control the shape of the mist connection with the help of air pressure;
④ Auxiliary hole on the nozzle gun: to promote the atomization of paint liquid. B. Large and many holes: the atomization ability is strong. C. If the holes are small and the number of holes is small, the sprayed air is less, and the atomization ability is poor, which is convenient for the spraying of small workpieces into a low-speed jet.
⑤ Dancing control button: the fog shape is circular when the control button is clicked; the fog shape is circular when the control button is turned on;
⑥ Needle valve: Control the flow of liquid paint spraying, and control and control through the operation of the trigger during spraying. There is a screw cap at the tail of the needle valve, which is used to adjust the expansion and contraction of the needle valve. The most basic operation of spray gun adjustment here control;
⑦ Ejector pin real material sleeve: plays a sealing role;
⑧ Fluid control button: When the trigger is pulled, it controls the liquid flow. When it is fully closed, no liquid will flow out even if the trigger is pulled. When it is fully open, the liquid flow is the largest at this time. This is to adjust the automatic One of the most important originals of the gun;
⑨ Trigger: The trigger is used to control the flow of air and paint. When the trigger is pulled, the air is opened first, and then the thimble can be driven to open the flow control valve to spray the paint.
