| 摘要 |
PROBLEM TO BE SOLVED: To prevent the contact of the cavity surface of an upper mold with that of a lower mold when the upper mold is opened. SOLUTION: A moving base 70 is raised by driving a cylinder to raise an upper mold 90 and a piston rod 84 is extended by driving a cylinder 80 to revolve the upper mold 90 to open the same. Since the upper mold 90 is opened after raised, the contact of the cavity surface of the upper mold 90 with the cavity surface (protruding part) of a lower mold 50 is prevented. |
