越野安全帽的最大特点是曲率变化大,生产制造工艺复杂。传统的安全帽的曲线变化平缓,容易以CDM射出成型技术批量生产。但越野安全帽,或称新潮型安全帽,必须以设计复杂的三维CDM;和设计出适应大弧度变化的脱模机构相配合。模内的滑块必须由3个增加到5个,同时还要有相应的滑块自动脱模次序。 此复杂的模具设计应借助于CAD/ The most prominent feature of cross-country helmets is the curvature changes, manufacturing complex manufacturing process. The curve of the traditional helmets changes gently and is easy to mass-produce with CDM injection molding technology. However, cross-country helmets, or trendy helmets, must be designed with complex three-dimensional CDM; and designed to adapt to changes in the arc of the release mechanism to match. Mold in the slider must be increased from 3 to 5, but also have the appropriate automatic release order slider. This complex mold design should be based on CAD /