In the construction planning of new industrialization road, the mold industry will develop in the direction of large scale, precision, complexity, long life and standardization in the future. For the design of precision injection mold, although the progress is very fast, there are still many problems to be improved and should be paid attention to.

According to experts, in precision injection molding, mold is one of the keys to obtain precision plastic products that meet the quality requirements. The mold for precision injection molding should meet the requirements of product size, precision and shape. This requires that the appropriate die size tolerance should be adopted first to prevent molding shrinkage error; At the same time, the injection molding deformation and demoulding deformation should be prevented, so as to improve the accuracy of the mold and maintain the accuracy of the mold.