| 摘要 |
PURPOSE:To mold a container having good stability and being completely closed, by constituting a male mold and a female mold where a molding parts for a leg piece are being prepared in a projection-recess shapes, compressing a synthetic resin material heated and softened in the female mold and separating the male mold quickly from the female mold to cool and harden the material. CONSTITUTION:A sheet-like synthetic resin material A is placed on an edge face molding part 7 of a female mold 5 and then heated to soften into a molten state. A male mold 1 is lowered from the upper part and the edge face molding part 3 is contacted with the edge face molding part 7 of the female mold 5. Thereafter, air is sucked from a sucking hole 9 for a molding material to compress it under vacuum. The synthetic resin A is compressed between both molds 1 and 5 and a molded container B is pressed in a softened state. At this time, the synthetic resin A in mold parts 4 and 8 of both mold 1 and 5 for molding a leg piece with a rim bottom is molded in a recess shape. Then, the male mold 1 is quickly pulled up, instantaneously cooled and taken out the female mold 5 to mold a molded container. |
