| 摘要 |
PURPOSE:To provide the manufacturing method for a transparent resin molded product in which the beautiful finishing of cut of face at a gate is achieved, the necessity of after-processing of said face is eliminated, the working process after cooling a resin material is saved and the structure of the mold is simplified. CONSTITUTION:A slide core 7 sildable toward a cavity 4 or a gate 8 to open or close an opening 9 communicating with the gate 8 through the cavity 4 is provided on a cavity main body 3 of the gate 8 section, and a transparent resin material 10 is injected from the gate 8 into the cavity 4 in the state of opening the opening 9 by the slide core 7. When the injection is almost completed, the slide core 7 is slid to close the opening 9, and a molten resin material 10 at the opening 9 passing from the gate 8 through the cavity 4 is pushed into the cavity 4 or the gate 8. |
