| 摘要 |
PROBLEM TO BE SOLVED: To secure a mold hardness by pattern-squeezing a position less prone to be filled with molding sand in a molding of a pattern exchange system. SOLUTION: The pattern body engaged so as to be freely ascended/descended with a pattern hole opened on the surface of a pattern plate fixed to a carrier plate, is energized to the descending position with an elastic member. A molding flask is laid on the carrier plate, and the charged molding sand is preliminarily squeezed into the molding flask and the pattern hole by relatively approaching a squeeze-head to a squeeze table. Successively, a pushing part arranged at the pattern body and exposed on the lower surface of the carrier plate, is pushed up and the molding sand is squeezed toward the pattern by pushing the pattern body to the ascending position against the resiliency of the elastic member. COPYRIGHT: (C)2004,JPO&NCIPI
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