Injection molds can be classified based on different molding characteristics and processes. According to the molding characteristics, injection molds can be divided into two types: thermosetting plastic molds and thermoplastic plastic molds. According to the molding process, injection molds can be divided into transfer molds, blow molds, casting molds, hot forming molds, hot pressing molds (compression molds), and injection molds. Among them, injection molds can be divided into two types based on the different pouring systems: cold runner molds and hot runner molds.

Injection mold is a tool used for producing plastic products, whose main function is to give plastic products a complete structure and precise dimensions. Injection molding is a commonly used processing method for mass production of complex shaped parts. The specific process is to inject the melted plastic into the mold cavity of the mold under high pressure from the injection molding machine, and after cooling and solidification, obtain the required formed product.