| 摘要 |
A punch press system is provided to reduce contact impact and noise by reducing instantaneous relative velocity at which die faces or an upper die and blank holders come in contact each other. In a punch press system, a lower punch(1) having a lower sectional shape of an article panel is mounted to a bolster(3) of the lower part, and blank holders(7) are mounted to the bolster through cushion pins(5) to the outside of the lower punch. An upper die(11) having an upper sectional shape of the article panel is mounted to a slider(9) of the upper part on of the lower punch, to press a panel put between the lower punch and the upper die and to form the article panel. An advanced push unit is installed between the lower end of the outer edge of the upper die and the outside of the blank holders, to reduce the instantaneous relative velocity at which each die face(19,15) of the upper die and the blank holders is connected.
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