The structure and working process of injection mould for side groove plastic parts were introduced with two parts as examples,and the key problem of forcibly demoulding was analyzed.

• 通过实例介绍两种带有侧凹(或侧凸)的塑料制品强制脱模的注射模典型结构及其工作原理,并分析了强制脱模应注意的事项。