| 摘要 |
PROBLEM TO BE SOLVED: To provide an air pressure molding die that can produce a solid size enlargement article in which a surface appearance is excellent even in low draft.SOLUTION: An air pressure molding die includes: an upper die 10 that has a compression air introduction hole 12; a lower die 20 that has a mold core 22; and a fixing frame 30 that fixes a film or a sheet 32, and is fitted by the upper die 10 and the lower die 20, and the air pressure molding die is characterized by including a motion mechanism 28 in which the mold core 22 advances to a position that is 1 to 5 mm higher than a required height 26 before molding, and pushes up the film or the sheet 32, and the mold core 22 regresses to the required height 26 at a molding time by a pressure of a compression air introduced from the compression air introduction hole 12. |
