Layered spraying-based coating process for automobile plastic exterior decoration

Abstract

The invention discloses a coating process for automobile plastic exterior decoration based on layered spraying, which comprises a coating system and is characterized in that the coating system comprises a pretreatment system, a conveying chain system, a spraying room system, a drying room system and a decoration detection system; the pretreatment system is used for washing, cleaning and shielding the automobile exterior trimming parts before spraying, the conveying chain system is used for fixedly feeding, discharging and conveying the automobile exterior trimming parts, and the spraying room system is used for spraying paint on the automobile exterior trimming parts. The drying room system is used for drying after water washing and cleaning in the pre-treatment system and drying paint spraying in the spraying room system, the modification detection system is used for detecting the spraying coverage rate and automatic supplementary spraying in the spraying room system, and the pre-treatment system comprises a water washing module, a scraping module and a shielding module. The shielding module comprises an upper shielding unit and a de-shielding unit, and the device has the advantage of automatically adjusting the temperature.

Description

technical field [0001] The invention relates to the technical field of automobile exterior decoration coating, in particular to a coating process for automobile plastic exterior decoration based on layered spraying. Background technique [0002] In recent years, the development of automotive exterior painting tends to be more environmentally friendly, non-toxic and safer. At present, the currently used bumper materials are mainly toughened modified polypropylene materials. Because they are non-polar polymer materials, they have poor adhesion to polar paints. After treatment, after obtaining a high polar surface, it can be further sprayed. This process has many links, is complicated, and takes a long time. It not only causes serious environmental pollution of the factory, but also makes the painting expensive. If the treatment is not fine, it will easily lead to a decrease in paint adhesion and unqualified product spraying. The existing coating process has poor practicabili...

AI Technical Summary

Problems solved by technology

There are many links, complex and time-consuming problems in this process, which not only causes serious environmental pollution of the factory, but also makes the painting expensive. If the treatment is not fine, it will easily lead to the decline of paint adhesion, and the product spraying is unqualified.

The existing coating process is poor in practicability

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