The Application of Curtain Coating Machine in Wooden Door Coating

Curtain Coating Machines are advanced equipment that can quickly apply paint to the surface of products in the form of uniform curtains. They are widely used in coating wood products, such as wooden doors, cabinets, MDF furniture, wood veneers, melamine paper boards, etc. Today, we will explore the application of a curtain coating machine in the wooden door coating.

Wooden doors come in different materials, product categories, and application scenarios, and which type of wooden door subdivision product is most suitable for using curtain coating machines? The answer is molded doors and doors for unified procurement by building developers. The reasons are as follows:

1. Their common feature is that the product structure is relatively simple, and the door leaf shape is simple and flat, without thick edges or decorative carvings.
2. They generally have a large output in actual production and high coating efficiency requirements.
3. Their coating effect requirements are less than those for home decoration doors.

Advantages of Curtain Coating Machine in Wooden Door Coating:

1. The coating speed is fast and efficient. In the production of molded doors and doors for unified procurement by building developers, three or five-centimeter thick MDF boards are usually shaped first and then assembled into doors after primer coating. Following this, polishing and topcoating are performed. Therefore, based on the principle of the curtain coating machine, the paint is hung in a straight line to form a paint curtain. The door panels can be quickly coated with primer through this curtain in a few seconds. Since assembly occurs, there is no need to differentiate between the front and back of the door leaf during curtain coating, eliminating the need to flip doors. With a properly adjusted curtain coating machine, the coating surface is smooth and full, with minimal paint remaining in the shape grooves. The product has no sagging paint on the edges and can be directly dried. If combined with loading, dust removal, conveying, unloading, and other equipment, more efficient and labor-saving automation can be achieved.
2. The paint utilization rate reaches as high as 99%. The curtain coating machine uses a liquid paint circulation method. Any paint that does not coat the surface of the board flows back and is recycled and reused through processes like filtration and defoaming. While the coating is relatively thick, it significantly reduces paint costs compared to spray painting. After professional installation and debugging, the paint film thickness can achieve an exact and controllable level.
3. Easy operation and maintenance. The working principle of the curtain coating machine is very simple, but the quality of the coating knife head is crucial. Only the knife head that has undergone high-precision processing and mechanical adjustment can have a precise and stable coating effect. At the same time, the strength and durability of the knife head are also the key to the machine’s coating effect and service life. Therefore, it is only necessary to clean the knife head part with a cleaning solution daily and regularly sand the knife head with sandpaper to ensure that it is smooth and uniform, without other complicated maintenance work. Moreover, only a few wearing parts should be prepared for high-quality coating machines.

Complete solution for wooden door coating: Door Finishing