This invention discloses a two-color
sequential injection molding integration process and apparatus for automotive interior curved surface parts, relating to the field of injection molding technology. The two-color
sequential injection molding integration process for automotive interior curved surface parts mainly includes the following steps: Step 1: Start the injection molding equipment, close the upper and lower molds, inject the base material melt into the cavity formed by the mold closing, and perform critical cooling after
mold filling and pressure holding; Step 2: Separate the upper and lower molds. This invention eliminates the need for
machining vacuum adsorption holes and connecting channels inside the mold core, and also eliminates the need for reserving installation interfaces for external vacuum pipelines, reducing the space occupied inside the mold core. Simultaneously, through the cooperation of drive and positioning components, the workpiece can be restricted and fixed to prevent it from falling off. Furthermore, the quality of the workpiece can be inspected to prevent situations where workpiece quality problems occur but secondary injection molding is continued, reducing
scrap and avoiding resource waste.