发明名称 |
PIERCING DIE |
摘要 |
PIERCING DIE The subject piercing die is particularly adapted for piercing a hole in a blank having an open interior and an outer wall defining a closed figure. The piercing is done from the interior of the blank through the wall to the outside of the blanks. The piercing die includes a base with a slide movably mounted on the base. A guide is movably connected to the slide to control movement of the slide to a straight line movement. A female die having a blank receptacle for holding the blank is mounted on the base. The female die has a cutting aperture extending through a portion of the female die and intersecting the blank receptacle. A male die is mounted on the slide and is positioned within the blank receptacle for mating with the cutting aperture to cut a hole in a blank positioned in the receptacle. The male die cuts hole in the blank from the interior of the blank through the outer wall to the outside of the blank. A cam is connectable to the slide for moving the male die toward the female die to engage the blank and to cut the hole in the blank. |
申请公布号 |
CA1295234(C) |
申请公布日期 |
1992.02.04 |
申请号 |
CA19870550718 |
申请日期 |
1987.10.30 |
申请人 |
GRUCHALSKI, HENRY |
发明人 |
GRUCHALSKI, HENRY;GRUCHALSKI, ALBERT |
分类号 |
B21D28/28;B21D28/30;B21D28/34 |
主分类号 |
B21D28/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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