| 摘要 |
PROBLEM TO BE SOLVED: To provide a mold for injection molding with an easy undercut treating mechanism. SOLUTION: In the mold used for a method for simultaneously injection molding and decorating comprising the first step of supplying a decorating sheet onto a movable mold of a pair of injection molds having a fixed mold A and the movable mold B and then fixing the sheet by a frame 23 at four sides of a periphery of a cavity of the mold, the second step of clamping both the molds and injecting resin, and the third step of moving part of the fixed mold laterally to the moving direction of the movable mold after the resin is solidified and then releasing a product from the fixed mold to be sequentially executed, a slide core 3 of part of the fixed mold sliding laterally by a hydraulic cylinder 4 for an undercut 2 has a structure that the sheet is fixed at lateral position by the frame for fixing the sheet at four sides at the time of clamping the molds. |
