| 摘要 |
PROBLEM TO BE SOLVED: To cool matter to be cooled by directly jetting cooling air to matter to be cooled. SOLUTION: When a molded item is removed by opening a mold 6 (matter to be cooled), an air jetting nozzle 11 is projected from the withdrawal position to the position between a stationary mold 7 and movable mold 8 by the operation apparatus (not shown). After that, an open and close valve 15 being closed until now opens for a predetermined period of time. As a result, cooling air is jetted from air jetting ports 12 toward the mold 6.
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