At present, spray coating equipment occupies a very important position in the production of wooden doors and other panel furniture, and even plays a key role. Most of these domestic furniture companies also use: spray painting methods, original equipment, irregular operations, lack of production process standards, independent innovation capabilities and independent intellectual property rights. At the same time, the spraying process is a technological process in production, and its quality and efficiency directly affect the quality and productivity of wooden doors and other products. Therefore, the optimization of the spraying process and equipment is of great significance to the performance of product quality.

For modern coating production lines, the temperature, humidity and air cleanliness requirements (<10 mg/m3 of air dust content) can usually be achieved; but in a relatively simple coating production line, it is difficult to ensure constant temperature, humidity and clean air, and the workpiece The coating device of the coating equipment is not satisfactory, making the film easy to produce pin (reduced) defects in the film, such as pinholes, orange peel, particles, etc., to avoid pinholes and film orange peel, the temperature of the di-painting room should be improved And humidity, so that the spray process requires indoor temperature and humidity; secondly, it should be suitable for adjusting the viscosity of the paint and the diluent that depends on temperature and humidity; for example, the temperature of the spray spray chamber needs to be 80% lower than 35℃, Humidity control.