| 摘要 |
PURPOSE: Hollow molded product manufacturing device and method are provided, which guarantee high cooling efficiency about the hollow of the molding and keep quality of product. CONSTITUTION: A hollow molded product manufacturing device(1) comprises a die unit(30) and a hollow cooling unit(50). The die unit has one or more cores(32). The core forms the hollow(12) of the molding by extruding and molding the raw material(14) of the molding. The hollow cooling unit is installed in the core of the die unit. The hollow cooling unit cools the hollow of the molding using cooling fluid. |
