The coating machine is mainly used for the surface coating process production of film, paper and so on. The rolled base material is coated with a layer of adhesive, paint or ink with specific functions, and then dried before winding. It adopts multi-function coating head, which can realize various forms of surface coating. The winding and unwinding of the coating machine are equipped with full-speed automatic film receiving mechanism, and PLC program tension closed-loop automatic control.

These are the main types of coating machines

1. Brush type

The brush coating machine is a relatively old coating equipment, which was used in the 1850s to produce coated wall wallpaper with porcelain clay coating. There are three different types of brush applicator: round brush applicator, blanket roller applicator and blanket cover applicator.

2. Air knife

The appearance of air knife coater in the 1930s marked the birth of modern paper coating industry. The air knife coater has overcome the shortcomings of the brush coater and has been rapidly promoted, resulting in a sharp increase in the output of coated paper.

3. Scraper type

In the 1950s, a scraper coater appeared. Since then, the technology of scraper coater has developed rapidly. According to the different feeding equipment, scraper type and scraper installation position, the scraper coating head is also divided into many types, such as hard blade scraper coating machine, drag blade scraper coating machine, soft blade scraper coating machine, fountain type feeding scraper coating machine, short dwell scraper coating machine, Bill scraper coating machine, scraper roller coating machine, etc.

4. Roller type

Roller coating is to apply coating to the coating surface with the coating roller, and the coating machine is mainly used for internal coating. The coating amount can be adjusted by measuring the pressure between the rollers. The pressure increases and the coating amount decreases.

5. Spray coating

Spray coating technology is a non-contact coating method. Controlled high-pressure spray technology is used to coat paper or paperboard on one or both sides.

6. Curtain coating

The multi-layer curtain coater can endow the ink-jet printing paper with a three-layer structure after only one coating operation, and can obtain a uniform coating on the uneven paper surface.

7. Slit coating

The slit coating head comprises a coating liquid storage tank; The pump is used to press the coating liquid in the coating liquid storage tank to the nozzle through the supply pipeline; The control part is used to control the operation of the pump and nozzle, and the pressure detection part is used to detect the pipeline pressure. When the pressure reaches the predetermined pressure condition, the nozzle discharges the coating liquid.