| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that two resin sheets are not welded precisely because the temperature of the welding parts of the resin sheets is lowered at the time of welding. SOLUTION: When the resin sheets S1 and S2 are welded by the peripheral edge parts of upper and lower molds 20 and 30 in the molding of a hollow resin container P, the resin sheets S1 and S2 are molded while heated by a heating plate 50 by allowing vacuum action or air pressure action to act on the upper and lower molds 20 and 30 and the heating plate 50. After molding, the heating plate 50 is moved to a work area W1 from a molding area W2 and the upper and lower molds 20 and 30 are driven up and down to weld the resin sheets S1 and S2 while keeping at a predetermined temperature. Since the welding of the resin sheets S1 and S2 is performed by an in-line molding machine, a process for molding the hollow resin container P is simplified. COPYRIGHT: (C)2005,JPO&NCIPI |
