The injection molding machine is the most used processing machine in the plastics processing industry. Not only a large number of products can be directly produced by the injection molding machine, but also the key equipment that constitutes the injection stretch blowing process. China has become the world's largest country in the production of plastic machine parts. The reasons for promoting the development of China's injection molding machine equipment manufacturing industry are: first, joint ventures and technical cooperation with internationally renowned companies; second, Chinese companies have gradually adapted to the international market for mechanical parts The purchase method has mastered the purchase channel. At the same time, the production of injection molding machines in my country also shows strong regional characteristics. Ningbo in Zhejiang and Dongguan in Guangdong have become important injection molding machine production bases in my country and even the world.