Thermal insulation aluminum coil coating is the core part of the production line. The main equipment includes roller coating machine and drying channel. Generally, the front or front and back coating process is adopted. According to the different direction of coating roller and transmission roller, it can be divided into forward coating and reverse coating processes.
Thermal insulation aluminum coil coating equipment roller coating machine is a kind of equipment that uses roller to coat coating on aluminum coil. Double roller machine and three roller machine are widely used. The double roller machine is mainly composed of paint tank, lifting roller, coating roller and transmission roller. During operation, the paint adjusted in advance is pumped into the paint tank by the working pump. The lifting roller is responsible for gluing the paint in the paint tank and transferring it to the coating roller. The coating roller applies the paint to the aluminum coil in the transmission, and the transmission roller is mainly responsible for the transmission of metal coil.
In the actual operation process, the relative rotation speed between the lifting roller, coating roller and transmission roller has a certain proportion. Compared with the two roll machine, the three roll machine has one more control roll. The control roll is used to adjust the amount of paint transferred from the lifting roll to the coating roll, which plays a certain role in accurately controlling the amount of paint. If the rotation speed ratio between the three rollers is unreasonable, the coated material will have surface problems such as horizontal stripes and vertical stripes. In general, the linear speed of the three rollers: reasonably controlling the rotation speed of the three rollers and the proportion between them is one of the key factors for coating a good appearance film. The three roller machine is mainly used in occasions with high surface requirements.
The post-treatment section in the post-treatment stage of thermal insulation aluminum coil coating is used to further process the produced aluminum coil and give it better protection and decoration effect. There are mainly film, printing, embossing and molding. Here's a simple explanation: film pasting is to press and paste the peelable polydilute hydrocarbon film on the top coat, and printing is to print various patterns and patterns on the metal roll coated with the top coat. Embossing is the hot embossed pattern on the surface of the paint film. Pressing is to press out a three-dimensional pattern through a steel roller with matching Yin and Yang patterns.