The molding of side holes was achieved by using angle pin and spring;
通过采用斜导柱、弹簧等实现了塑件侧孔成型;
The thesis presents a practical die structure with angle pin and gear shaft and rack for secondary combined inclined down loosing core of die casting hopper bodies.
The working principle of the die casting mould has been discussed, and the core pulling force, the core pulling distance and the diameter of the angle pin have been confirmed by calculation.