Introduction of hot melt adhesive coating machine
The hot melt glue coating machine can melt the solid hot melt glue, and transport the melted glue to the glue coating device to coat the substrate through the pressurizing device. An electromechanical device integrating precise temperature control function, fluid pressure conveying function and extrusion coating function. It also has the function of automatic control and automatic tracking of the production line speed.
Host: It has the functions of heating and insulating, melting the glue, outputting the glue, controlling the pressure of the glue, and primary filtration. The temperature of the host should be controlled at 5-10 degrees higher than the melting point of the glue. Make it have a certain fluidity. Make the pressure The control is more accurate.
Throat: It has the function of heating and heat preservation, guiding the glue liquid, and outputting the liquid hot melt glue from the host to the gun base module. The temperature can be kept slightly higher than the melting point of the glue liquid.
Gun base: It is equipped with heating and heat preservation, secondary filtration. It transports the glue to the gun body. It also has the function of heating the compressed air as needed. The temperature can be appropriately increased according to the glue spraying effect. Make the glue fluid better.
Gun body: It has the function of opening and closing the glue. Various nozzles and scraping nozzles are matched according to the needs. To meet the needs of users. There are spiral spray guns, coating scrapers, fiber spray guns, Z-shaped spray guns, point guns, etc. Wait.
Automatic compensation control system: With output signal control solenoid valve, the compressed air controlled by the solenoid valve drives the work of the gun body to control the opening and closing of the glue. And output 0-10V DC voltage to control the inverter to drive the motor to rotate. The output voltage is proportional to the speed of the production line being tested. Glue position, glue break length and tracking voltage can be adjusted online. Devices that detect the speed of the production line include proximity switches, rotary encoders, etc.
Hot melt adhesives are collectively referred to in the industry. In fact, there are many types of hot melt adhesives, including EVA, PA, PES, PUR, pressure sensitive adhesives and so on.