公开(公告)号：US5492658A

公开(公告)日：1996-02-20

申请号：US356207

申请日：1994-12-19

申请人： Masakazu Ohno ,  Yukio Yoshizawa ,  Shoji Miyajima ,  Sumio Sato ,  Toshio Inage ,  Motohiro Kobayashi

发明人： Masakazu Ohno ,  Yukio Yoshizawa ,  Shoji Miyajima ,  Sumio Sato ,  Toshio Inage ,  Motohiro Kobayashi

IPC分类号： B29C45/38 ,  B29C45/40 ,  B29C45/76

CPC分类号： B29C45/40 ,  B29C45/38 ,  B29C45/7626 ,  B29C2045/764 ,  Y10S425/051

摘要： The present intention intends to operate an ejector which carries out gate cut and product ejection in an injection molding machine, at optimal speeds, respectively. According to the present invention, a control unit for controlling hydraulic or electric drive means for operating one or more than one ejector pin comprises operation speed setting means for gate cut and another operation speed setting means for product ejection. Such a structure enables to carry out gate cut by operating an ejector unit controlled by an ejector unit operation speed setting means for a gate cut and, subsequently, to carry out a product ejection from metallic molds by operating the ejector unit controlled by another ejector unit operation speed setting means for product ejection. The ejector unit is set at a comparatively high operation speed for gate cut so that no gate trace will remain, and at a comparatively low operation speed for product ejection so that no cracks will be generated in the product.

摘要翻译： 目的在于以最佳速度分别在注射成型机中进行浇口切割和产品喷射的喷射器。 根据本发明，用于控制用于操作一个或多个顶针的液压或电驱动装置的控制单元包括用于闸板切割的操作速度设定装置和用于产品喷射的另一操作速度设定装置。 这种结构能够通过操作由喷射器单元操作的喷射器单元进行闸板切割，喷射器单元操作速度设定装置用于浇口切割，并且随后通过操作由另一个喷射器单元控制的喷射器单元从金属模具执行产品喷射 用于产品喷射的操作速度设定装置。 喷射器单元被设置为相对较高的操作速度以进行栅极切割，使得不会留下栅极迹线，并且以相对低的操作速度进行产品喷射，使得产品中不会产生裂纹。