Based on the characteristics of plastic materials, the shape and size of the product, and the performance of the injection molding equipment, personalized gate design is carried out. Precisely determine the type of gate (such as pin point gate, side gate, etc.), size and position, optimize the flow path and filling pattern of the plastic melt, reduce molding defects (such as air traps, sink marks, etc.), and improve the molding quality and productivity of the product.