China Hengjiu Jinye Intelligent Technology Co., Ltd. specializes in surface treatment equipment and painting equipment. This planar coating line is highly suitable for the coating of products in the hardware, plastic, and electronics industries.

The planar coating line for plastic shells is a professional production line used for coating the surfaces of plastic shells. It can significantly enhance the aesthetics and durability of plastic shells and is widely applied in industries such as 3C products, household appliances, and toys. Its main components and workflow are as follows:

Conveying Section

It consists of devices such as chains and conveyor belts, which orderly transport plastic shells to each process. The conveying speed can be adjusted according to actual production needs, ensuring the stable movement of shells during the coating process, the uniformity and continuity of coating, and achieving efficient production.

Pretreatment Area

Plastic shells undergo pretreatment such as cleaning and degreasing here. Through methods like chemical solution cleaning or high - pressure spraying, impurities such as oil stains, dust, and mold release agents on the shell surface are removed, the surface roughness is increased, and the adhesion of the subsequent coating is improved, laying a foundation for high - quality coating results.

Painting Booth

This is the core area, equipped with painting equipment such as automatic spray guns inside. According to the shape of the shell and coating requirements, the spray guns, under the control of an automated program, evenly spray the prepared paint onto the flat surface of the plastic shell. The painting booth has good air - tightness and is equipped with ventilation and paint mist treatment devices, which not only prevent paint mist from overflowing and polluting the environment but also ensure the health and safety of operators.

Leveling Area

The painted shells stay here briefly, allowing the paint layer to level naturally under the action of gravity and surface tension. This reduces defects such as orange peel and sagging on the paint surface, making the coating smoother and improving the appearance quality.

Drying and Curing Area

Drying methods such as hot - air circulation and infrared radiation are used to prompt the rapid curing of the paint layer. The temperature and time are precisely controlled to ensure that the paint undergoes a full cross - linking reaction, forming a strong and wear - resistant coating and enhancing the protective performance and service life of the plastic shell.

Quality Inspection Area

A comprehensive inspection is carried out on the coated plastic shells, including checking for appearance defects, measuring the coating thickness, and testing the adhesion. Unqualified products are selected for rework according to quality standards to ensure that the products leaving the factory meet high - quality requirements.