| 摘要 |
A metal mold device for blow molding, wherein a plurality of fluid circulati ng grooves (11) of flat shape in cross section disposed densely parallel with each other through partition walls (21) are formed between the rear surface of a metal mold for blow molding (2) and a backup material (4) disposed fittedl y onto the rear surface, an inlet (12) and an outlet (13) for fluid are formed in each of the fluid circulating grooves (11), heating fluid or cooling flui d flows from a fluid feeding manifold (14) into the fluid circulating grooves (11) through the inlets (12), flows along the fluid circulating grooves (11) , flows out of the outlets (13), flows into a fluid discharge manifold (15), a nd is discharged to the outside, whereby the metal mold (2) can be rapidly heat ed and cooled, nonuniformity of temperature can be eliminated, a cycle time can be shortened, and an energy consumption can also be reduced.
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