The Use Of Hot Melt Adhesive Coating Machine

With the increasing demand for coated products on the market, the requirements for the control of the coating tension of hot melt adhesive coating machines are getting higher and higher. The working efficiency of the hot melt adhesive coating machine also plays a very important part. These directly affect the profit of the commodity.

Working principle of hot melt adhesive machine:
In the industry, the hot melt adhesive can be melted and heated, and the coating can be quickly solidified after cooling. It adheres to the substrate. Therefore, the hot melt adhesive machine should have the most basic function of hot melt adhesive. Melt and coat the substrate. In this way, we can define the hot melt adhesive machine as: it can melt the hot melt adhesive in the solid state, and send the melted liquid into the coating by the pressurizing device. The cloth device implements coating on the substrate. It integrates temperature heating control, pressure function, liquid conveying and extrusion coating functions into one mechanical and electrical equipment.

How to control coating tension:
The coating tension control method of the hot melt adhesive coating machine: 1. The tension control at all levels is completed by the inverter, and the tension control is realized by the tension sensor. The system is simple and stable. Use PLC or synchronous controller to control the speed of the drive roller inverter, and at the same time as the line speed signal of other inverters. 2. S350 closed-loop tension control (sensing vector control) easily achieves constant tension during acceleration and deceleration, saves space for installing tension rollers, reduces mechanical costs, and at the same time, high-precision control ensures a highly uniform coating effect. 3. The double-station winding and unwinding has a pre-drive function, which can meet the needs of high-speed non-stop automatic roll change and improve production efficiency. At the same time, accurate rewinding control can avoid dish-style unhealthy rewinding and make the rewinding effect better.


Purpose of hot melt adhesive machine:
Hot melt adhesive machine is mainly used for automatic application equipment for hot melt adhesive spraying, scraping, rolling, coating and injection. Widely used in household products (disposables such as diapers, sanitary napkins, mousetraps, cockroach houses, etc.), automotive industry (interior sealing, car light manufacturing, windshield assembly, air filter, non-woven composite, shoe industry , Printing, electronic product assembly, garment manufacturing, self-adhesive packaging, packaging industry (carton packaging, cigarette case packaging, Tetra Pak beverage packaging), coating compounding industry (label paper, label double-sided tape, medical breathable tape), book binding And other industries.