公开(公告)号：US5238392A

公开(公告)日：1993-08-24

申请号：US852897

申请日：1992-03-18

申请人： Toshihiro Hosokawa ,  Kiyoshi Nakahara ,  Ryuichi Ishitsubo ,  Toshiyuki Okuda

发明人： Toshihiro Hosokawa ,  Kiyoshi Nakahara ,  Ryuichi Ishitsubo ,  Toshiyuki Okuda

IPC分类号： B29C45/27 ,  B29C45/28

CPC分类号： B29C45/2725 ,  B29C45/2806

摘要： A pressure molding apparatus for supplying molten resin to a mold includes a gate unit having an aperture therein for passage of molten resin into a mold cavity of the mold, a gate pipe connected for communication with the gate unit, and a gate pin which is axially movable within the gate pipe. The gate pin has a gate pin end at one end and a tip at another end thereof, the tip being engageable with the aperture for controlling flow of molten resin through the gate unit. The apparatus also includes a manifold pipe for supplying molten resin to the gate pipe, a connection arrangement for connecting the gate pipe to the manifold pipe. The connection arrangement includes a receiving portion for receiving molten resin from the manifold pipe, the gate pin passing completely through the receiving portion and the gate pin end extending beyond the connection arrangement. A limit switch arrangement is provided for detecting movement of the gate pin end to a predetermined position, the limit switch arrangement producing a signal indicative of whether the gate pin end is at the predetermined position. A molten-resin supply pipeline is also provided which includes a base pipe for supplying the molten resin to the interior of the manifold pipe, and the base pipe is connected to the manifold pipe by a pillar pipe.

摘要翻译： 用于将熔融树脂供给到模具的压力成型装置包括：门单元，其具有用于使熔融树脂通入模具的模腔中的孔，连接到门单元的浇口管，以及轴向 可在门管内移动。 闸销在一端具有闸销端，在其另一端具有尖端，所述尖端可与所述孔接合，以控制熔融树脂通过所述门单元的流动。 该设备还包括用于将熔融树脂供应到浇口管的歧管，用于将闸管连接到歧管管的连接装置。 连接装置包括用于从歧管管接收熔融树脂的接收部分，栅极引脚完全穿过接收部分，并且栅极销端延伸超过连接装置。 提供限位开关装置，用于检测门极端部到预定位置的移动，限位开关装置产生一个指示门极端是否处于预定位置的信号。 还提供了一种熔融树脂供应管道，其包括用于将熔融树脂供应到歧管管内部的基管，并且基管通过支柱管连接到歧管管。