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2. 发明公开

EP1741538A1 Injection unit of injection molding machine 有权
标题翻译： Einspritzeinheitfüreine Spritzgiessmaschine
公开(公告)号：EP1741538A1
公开(公告)日：2007-01-10
申请号：EP06253273.4
申请日：2006-06-23
申请人： FANUC LTD
发明人： Nishimura, Koichi , Shima, Koji , Naito, Yasuo FANUC
IPC分类号： B29C45/50
CPC分类号： B29C45/5008 , B29C2045/5032
摘要： The invention provides an injection molding machine injection unit that eliminates adverse effects on the load cell (3) of belt tension due to belt drive. A load cell (3) that detects resin pressure is mounted on a pusher plate (1) and a rotation-transmitting member (4), on which an injection screw (17) is fixedly mounted, is axially supported by an inner annular part (3b) of the load cell. The shaft (7) of a pulley (9) is axially supported on the pusher plate (1) and coupled by splines to the rotation-transmitting member (4). A screw rotation motor (12) is mounted on motor mounts (2a) of a housing (2) mounted on the rear surface of the pusher plate (1). Tension on a belt run between the pulley (9) and a pulley (11) mounted on the motor output shaft concentrates a force at the base of the motor mounts (2a). However, the housing (2) is separate from the pusher plate (1) and fixedly mounted on the pusher plate (1) at a location other than that occupied by the base of the motor mounts (2a). Therefore, the belt tension does not adversely affect the load cell (3), thus enabling high-accuracy resin pressure detection.
摘要翻译：本发明提供了一种注射成型机注射单元，其消除了由于皮带驱动引起的皮带张力的测力传感器（3）的不利影响。检测树脂压力的称重传感器（3）安装在推动板（1）和固定安装有注射螺杆（17）的旋转传递部件（4）上，其内部环形部分 3b）的称重传感器。滑轮（9）的轴（7）轴向支撑在推板（1）上，并通过花键连接到旋转传递构件（4）。螺钉旋转马达（12）安装在安装在推动板（1）的后表面上的壳体（2）的马达安装座（2a）上。在滑轮（9）与安装在马达输出轴上的皮带轮（11）之间的皮带上的张力集中在马达座（2a）底部的力。然而，壳体（2）与推动板（1）分离并且固定地安装在推动板（1）上，而不是由马达座（2a）的基座占据的位置。因此，带张力不会对称重传感器（3）产生不利影响，从而能够进行高精度的树脂压力检测。

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