The working principle of the multi-layer laminating machine is to heat and melt a variety of materials through an extruder, then extrude them into films through a die, and then through cooling, compounding and other processes, the multi-layer films are compounded together.
Specifically, a multi-layer laminating machine usually consists of multiple extruders, each extruder extrudes different materials, and these materials merge at the extruder head to form a multi-layer film. Then, these films are cooled and solidified by cooling rollers, and then passed through laminating rollers to laminate the multi-layer films together. During the composite process, various additives, adhesives, etc. can also be added to improve the performance of the composite film.
The working principle of multi-layer laminating machines involves knowledge in many fields such as material science, mechanical engineering, automation control, etc. Different types of multi-layer laminating machines may have some differences, but generally they all follow the above basic principles.