In the stage of injection mold design, it is necessary to determine the injection molding machine, production capacity requirements, injection mold service life requirements, injection molding raw material shrinkage design, injection molding mold structure and other details; For plastic parts with high appearance requirements, 3D simulation mold flow analysis needs to be carried out in advance to better meet potential defects in injection mold production and conduct evaluation and prediction;

Before the completion of the injection mold manufacturing and the first mold trial, it is also confirmed whether the injection mold protection device is complete, such as whether there is a forced withdrawal mechanism, a limit switch mechanism for the ejector pin plate, etc., to ensure that the injection mold can protect it from damage under abnormal conditions. In addition, every time the mold is tested, it is necessary to bring all the assembled parts as much as possible, so that when problems arise, the modification plan can be analyzed and judged more quickly, reducing complexity to simplicity.