| 摘要 |
PURPOSE:To make a hole simultaneously with injection molding, mold also a part having no hole by injection molding and make the apparent quality of the part excellent at molding it. CONSTITUTION:An injection mold 1 comprises a fixed mold 2 and a moving mold 3 which forms a cavity C together with the fixed mold 2. The moving mold 3 is equipped with a moving core 4 which comes up and dog singly in the cavity C and can approach and separate from the fixed mold 2, and a main body butting section 3a for stopping the moving core 4 at a predetermined clearance S to the fixed mold 2. |
