The injection machine pushed the knockout plate, and then the knockout plate drove the threaded rod, resulting in the rotation of the threaded core and the auto_demoulding of the plastic part.

模具的特点在于利用注塑机顶出动作，由推板驱动螺杆，经齿轮传动使螺纹型芯旋转，塑件自动脱出。