| 摘要 |
PURPOSE:To enhance the quality of a disc by providing a holding means for holding the disc such as an optical disk to a fixed die to leave and hold the disc molded in a cavity on the side of the fixed die by the opening of a movable die from the fixed die. CONSTITUTION:When the opening operation of a mold is started by the retracting operation of the movable plate of a clamping apparatus, the disc molded in a cavity is detached from a movable die 14, that is, a stamper 42 by the compressed air blown out of the air passage 46 on the side of the movable die 14 and sucked to a fixed die 12 by the sucking operation of air through the air passage 26 on the side of the fixed die 12. As a result, the stain or haze like transfer inferiority of stamper data is suppressed or reduced to a large extent. |
