An in-mold vacuum spraying device

Abstract

The invention discloses an in-mold vacuum spraying device. The device comprises a moving mold and a first fixed mold which are matched for use; a fixed mold plate is arranged on one side, far away from the moving mold, of the first fixed mold; a second fixed mold is further arranged on the plane, close to the moving mold, of the fixed mold plate; a rotating shaft is arranged on one side surface, far away from the moving mold, of the fixed mold plate; a cavity is formed in the second fixed mold and communicates with an automatic paint spraying device; paint spraying holes are formed in the cavity wall on one side, close to the moving mold, of the cavity; the second fixed mold is provided with an automatic drying device connecting hole and a paint separating system connecting hole; the automatic drying device connecting hole communicates with an automatic drying device through a pipeline; the paint separating system connecting hole communicates with a paint separating system through a pipeline; and the other end of the paint separating system is connected with a vacuum pump. With the spraying device, pollution to the environment and damage to health of operators are effectively reduced, the problem that repeated transfer is required in the spraying and curing process of an injection-molded piece is solved, and the quality stability of sprayed paint on the surface of the injection-molded piece is guaranteed.

Description

technical field [0001] The invention relates to the technical field of vacuum spraying, in particular to an in-mold vacuum spraying device. Background technique [0002] The surface spraying technology of injection molded parts is widely used in the surface decoration process of industrial products such as automobiles and motorcycles. [0003] The traditional spraying process of injection molded parts is as follows: the plastic is first heated and melted in the heating cylinder of the injection molding machine, and then driven by the screw or plunger of the injection molding machine, it enters the mold cavity through the nozzle of the injection molding machine and the gating system of the mold. After cooling and hardening, it comes off. Molding to get injection molded parts, and then the injection molded parts are painted and dried to get the desired color product. The surface spraying and paint curing of injection molded parts are directly operated by workers in two open s...

AI Technical Summary

Problems solved by technology

The surface spraying and paint curing of injection molded parts are directly operated by workers in two open spaces. The surface quality of injection molded parts sprayed is unstable, and a large amount of exhaust gas and waste paint are generated during the process of painting decoration and paint curing. Environmental pollution, but also endanger the health of workers

At the same time, the painting of traditional injection molded parts has to go through multiple transfers, and it is easy to scratch the surface of injection molded parts during the transfer process

[0004] In summary, how to solve the problems of polluting the environment during the spraying and curing process of the surface of injection molded parts, endangering the health of operators, unstable sprayed surface quality and easy bruises during the transfer of injection molded parts have become urgent problems for those skilled in the art. technical issues

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