Title:
MULTISTAGE PRESS DEVICE AND METHOD FOR MANUFACTURING INTERMEDIATE MOLD INCLUDED THEREIN
Document Type and Number:
WIPO Patent Application WO/2013/030957
Kind Code:
A1
Abstract:
Provided are a small multistage press device in which height is controlled and a method for manufacturing an intermediate mold included therein. The present invention is a manufacturing step (S1) for an intermediate mold (30) constituted of a single member and in which molding surfaces are formed on each of an upper surface and a lower surface. The manufacturing step (S1) comprises: a reinforcing step (S11) of reinforcing an evaporative pattern (40) which has the same shape as the intermediate mold (30) with a reinforcing member (50) that supports the portions of the evaporative pattern (40) on which surfaces corresponding to the two molding surfaces of the intermediate mold (30) are formed; a placement step (S12) in which the evaporative pattern (40) is placed within a casting frame (60) such that the surfaces corresponding to the two molding surfaces of the intermediate mold (30) are positioned along a perpendicular direction; a first sand filling step (S13) in which casting sand (70) is injected into the casting frame (60); a second sand filling step (S14) in which casting sand (70) is injected into the casting frame (60) after the casting frame (60) is reversed up-and-down and the reinforcing member (50) is removed from the evaporative pattern (40); and a pouring step (S15) in which the evaporative pattern (40) is replaced by a melt. A multistage press device (1) is provided with at least one intermediate mold (30).
Inventors:
MATSUMURA TAKUYA (JP)
HASEGAWA KOJI (JP)
YAMAMOTO HIROKI (JP)
MARUYAMA TOSHINORI (JP)
HOSHINO TAKAHIRO (JP)
HASEGAWA KOJI (JP)
YAMAMOTO HIROKI (JP)
MARUYAMA TOSHINORI (JP)
HOSHINO TAKAHIRO (JP)
Application Number:
PCT/JP2011/069631
Publication Date:
March 07, 2013
Filing Date:
August 30, 2011
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
MATSUMURA TAKUYA (JP)
HASEGAWA KOJI (JP)
YAMAMOTO HIROKI (JP)
MARUYAMA TOSHINORI (JP)
HOSHINO TAKAHIRO (JP)
MATSUMURA TAKUYA (JP)
HASEGAWA KOJI (JP)
YAMAMOTO HIROKI (JP)
MARUYAMA TOSHINORI (JP)
HOSHINO TAKAHIRO (JP)
International Classes:
B30B15/02
Foreign References:
| JPH10199360A | 1998-07-31 | |||
| JPH09122821A | 1997-05-13 |
Attorney, Agent or Firm:
YANO Juichiro (JP)
Juichiro Yano (JP)
Juichiro Yano (JP)
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Claims: