PROBLEM TO BE SOLVED: To reduce a number of filling steps for filling powder in a mortar hole 4 in a production method of a cored molding.SOLUTION: A production method of a cored molding comprises: a filling step for filling powder in a mortar hole 4 by a filling device a core supply step for, after the filling step, supplying cores in the mortar hole 4 by a core supply mechanism a core pressing step in which, a lower end face of a core pressing member enters in the powder in the mortar hole 4 and presses the cores against the mortar hole a core covering step for, after the core pressing step, pulling the lower end face of the core pressing member from the powder in the mortar hole, in which the cores are covered with the powder in the mortar hole and a compression molding step for, after the core covering step, compressing and molding the powder filled in the mortar hole, with the cores, by upper and lower pestles 5, 6.SELECTED DRAWING: Figure 14COPYRIGHT: (C)2016,JPO&INPIT【課題】有核成形品の製造方法において、臼孔4内に粉体を充填する充填工程を少なくすること。【解決手段】充填装置により臼孔4内に粉体を充填する充填工程と、充填工程の後、核供給機構により核を臼孔4内に供給する核供給工程と、核押し込み部材の下端面が臼孔4の粉体内に入り込み核を前記臼孔内に押し込む核押し込み工程と、核押し込み工程の後、核押し込み部材の下端面を臼孔の粉体内から引き抜き、核が臼孔内の粉体で覆われる核覆い工程と、核覆い工程後、臼孔内に充填された粉体を核と共に上杵5及び下杵6により圧縮成形する圧縮成形工程とからなる粉体圧縮成形機における有核成形品の製造方法を提供する。【選択図】図14
