| 摘要 |
PURPOSE:To facilitate replacing of molds and make possible the insertion of cores during operation by turning a molding flask not within a longitudinal plane but within a horizontal plane at the time of sending out a sand mold to pouring process. CONSTITUTION:After sand is filled in a hopper 1, a butterfly valve 7 is closed. Next, the hopper 1 is lowered until a blow hole 9 communicates with a window hole 21, then molding sand is blown between front mold 12 and a rear mold 20. On finishing of the supplying of the molding sand, a sliding flask 2 is slided to bring the front mold 12 closer to the rear mold 20. At this same instant, a cylinder device 18 is operated to press the rear mold 20 to the front mold 12, whereby the sand mold shown by the dotted lines in the figure is made. When the sand mold is completed, the front mold 12 and the molding flask 3 are parted, thence the molding flask 3 is turned horizontally to the position where it aligns to the pouring process. Finally it is possible to inset a core at the time of separating the sand mold and turning the molding flask to the orignal positions. |
