The invention discloses a method for producing
colored bumpers. The method includes the steps that A1, plastic part raw materials are selected; A2, an
injection molding machine is preheated; A3, the plastic part raw materials are fed into a
drying barrel to be dried in a concentrated mode; A4, the
injection molding machine is controlled to start injection molding; A5,
flame treatment is conducted on a grabbed plastic part product, so that flash and burrs on the surface of the product are removed, and a pouring gate is automatically
cut off; A6, the plastic part product is wiped and cleaned and fed into a high-temperature
cleaning room to be cleaned; A7, the plastic part product is cleaned; A8, the cleaned plastic part product is dried and fed into a
drying room to be dried, then
flame treatment is conducted on the plastic part product, and the plastic part product subjected to
flame treatment is fed into an
ionization dust removal chamber to be subjected to
ionization dust removal; and A9, a spraying
robot is used for conducting three paint spraying procedures on the plastic part product in a sealed spraying booth. According to the method, the production efficiency is high, the production safety is high, and the percent of pass of products is increased.