The structure and application of the coating machine:
Since the circuit board has very high environmental requirements, a protective layer should be covered on its surface to improve the service life. The coating machine is a machine used to automatically apply glue to the circuit board. A special glue is pre-pointed on the position of the patch on the PCB board to fix and protect the patch components. The coating machine is composed of nozzles, coating molds, barrels, curing devices and other components.
Basic working principle:
Compressed gas is injected into the glue bottle (syringe), and the glue is poured into the feed pipe connected to the cylinder chamber. When the piston is on the upstroke, the piston chamber is filled with glue. When the piston pushes down the glue dripping needle, Glue is pressed out from the needle tip. The amount of glue dripped out is determined by the interval of the piston’s downstroke, which can be adjusted manually or controlled by computer software.
Post time: Jul-03-2023