We stated previously that the ejector grid must provide adequate support for the mould plate. 我们前面已经说明顶料系统必须对模板提供足够的支撑。
During the mould opening sequence the sprue puller is effectively withdrawn with respect to the adjacent plate, causing the feed system to be sheared from the sprue puller. 在模具打开的过程中，主流道拉料杆相对于邻近的模板等效抽出，引起浇注系统在主流道拉料杆上被切断。
