Once a part has been molded, now it must be removed from the mold piece. Ideally, that happens without damage to the part.
注射成型专家使用多种技术来驱出零件。一种方法是将零件的墙壁与分隔线倾斜；这被称为起草。
起草很重要，因为在大多数情况下，您不希望任何零件表面与模具上的抽签线完全90度。否则，您可能会损坏零件，例如阻力标记，这使得很难从模具中取出零件。
How much angle (draft) you design for the walls often depends on the application. A general rule is to have at least one degree for every inch of mold depth.
Here are several design options to consider:
- 模具应设计为打开，以使零件停留在B侧。对于模具的A侧，添加更多草稿，以确保该零件停留在模具的B侧。
–If the part has a lot of texture, more draft is needed. More draft angle ensures the part releases on ejection without drag as it moves off the molding surface.
–Parts that feature small or deep ribs can be challenging to eject without damage to those features. Consider adding more draft.
–Consider adding draft in general. If the amount of draft does not affect either the function or the aesthetics of a part, it could benefit ejection.
- 不要忘记小功能。例如，孔可能会导致零件粘住，因此可能需要其他草稿。
Filed Under:Make Parts Fast
