Introduction
EVA (ethylene-vinyl acetate copolymer) resin coating machine plays a vital role in modern industrial production, and is widely used in shoe materials, packaging, construction and other fields. This article will deeply discuss the technical principle of EVA resin coater, coater type, operation method, etc., in order to better understand this key industrial equipment.
Technical principle
1. EVA resin overview
EVA resin is a thermoplastic with excellent properties such as elasticity, cold resistance, chemical resistance and processability. Through the coating machine, EVA resin can be evenly coated on the substrate, giving the substrate specific properties.
2. Coater type
2.1 Roller coater
Roller coater is one of the common types of EVA resin coater. The basic principle is that EVA resin is evenly coated on the surface of the substrate through the rotation of the roller. The coater has simple structure, convenient operation and is suitable for large area coating.
2.2 Spraying coater
A spray-on coater uses high-pressure gas to spray EVA resin onto the substrate to create a uniform coating. This method is suitable for the occasion of higher coating quality requirements, to achieve more detailed coating.
2.3 Scraper coater
The scraper coater uniformly coats EVA resin on the substrate through the scraper, which is suitable for the substrate with high coating thickness or special shape.
3. Operation method
3.1 Preparations
Before operating the EVA coating machine, a series of preparatory work needs to be carried out, including checking the parts of the coating machine, adjusting parameters, preparing EVA resin and substrate.
3.2 Adjusting Parameters
According to the type of coating machine, adjust the coating speed, temperature, coating thickness and other parameters. These adjustments are directly related to the coating effect and product quality, and need to be set by experienced operators.
3.3 Start the coating machine
Start the coating machine, ensure the normal operation of each system, check the status of the coating head, roll, scraper and other parts. Select start mode and gradually increase the coating speed.
3.4 Monitoring the coating process
During the coating process, the coating effect is continuously monitored, and the parameters of the coating machine are adjusted by observing the coating head and coating thickness to ensure uniform and stable coating.
3.5 Shutdown and cleaning
After the coating work is completed, stop the machine and clean it in time. Cleaning involves coating the head, removing residual EVA resin, and keeping the coater clean in preparation for the next production.
Advantages and application areas
Step 1: Advantages
1.1 Efficient production
EVA resin coating machine has high coating speed and high production efficiency to meet the needs of mass production.
1.2 Apply evenly
Regardless of the type of coating machine, technical principles and operating methods ensure uniform coating of EVA resin to ensure product quality.
1.3 Diversified Applications
EVA resin coating machine is suitable for a variety of substrates, such as paper, cloth, plastic, etc., can adjust parameters according to demand, to achieve a variety of applications.
2. Application field
2.1 Shoe material manufacturing
It is widely used in the manufacture of shoe materials, making soles, insoles, etc., to improve the elasticity and wear resistance of footwear products.
2.2 Packaging Industry
EVA resin coating machine is used for coating packaging materials to improve the durability and appearance quality of packaging materials.
2.3 Construction field
In the field of construction, it is used to produce waterproof materials, such as waterproof coils, to improve the waterproof performance of building materials.
Conclusion
As a key industrial equipment, EVA resin coating machine is widely used in shoe materials, packaging, construction and other fields. Different types of coating machines have certain technical principles and operating methods, but they can achieve uniform coating of EVA resin on the substrate. In the future, EVA resin coater will continue to play its advantages of efficient and uniform coating, providing reliable solutions for industrial production.