| 摘要 |
PURPOSE:To improve precision by forcibly adhering a stamper to a mirror face to which the stamper is to be adhered fundamentally and preventing so- called doubling which causes pit slippage when the stamper peeled off once engages again upon lowering of mold clamping force. CONSTITUTION:On a moving side mold 6, a moving side mirror face 28 is attached and an outer periphery is fixed by a bolt 29. At a cylinder member 30 embedded in the moving side mold 6, a cut pin 34 having a sprue ejector pin 32 is provided movably back and force. On the cylinder member 30, an air supply passage 38 is formed and an annular air discharge opening 40 communicating with the air supply passage 38 is formed. When mold clamping force lowers, a stamper S is forcibly adhered to the moving side mold 6, to which it adheres fundamentally, by air suction from the air discharge opening 40 and is peeled off from the moving side mirror face 28 by air supply from the air discharge opening 40 in a mold opening state. |
