| 摘要 |
PURPOSE:To facilitate the maintenance of the mold concerned by a method wherein gate cutting is performed by the action of a gate cutting piston on an injection molder side and the ejections of a sprue and of a molded item are simultaneously performed by the action of a center ejector pin and the action of an ejector sleeve, which follows to that of the center ejector pin by the delay of the predetermined distance. CONSTITUTION:After the advancement of a center ejector pin 30 alone by the predetermine distance, the center ejector 30 and an ejector sleeve 27 are simultaneously advanced. Thus, a sprue accompanied by a gate part located by all means ahead a product or a disc so as to be ejected. When the retreats of a gate cutting piston 100 and of an ejector piston 101 start, the following retreates of a male side gate cutter 29 by the energizing forces of springs 35 and 35 and of the center ejector pin 30 and ejector sleeve 27 by the energizing forces of springs 34 and 34 start. A product unloader surely sucks the disc and holds the sprue and, after separating them from each other, takes them outside an injection molder. |
