发明名称 |
Rotary cutting dies with vacuum assist to cut and clear waste |
摘要 |
A die-cutting roll is constructed to cut holes in traveling web materials, and for clearing and discharging the fragments, in a highly effective manner. A multiplicity of air vent ports communicate with the channel through which the scrap moves to an internal axial passage of the roll, and supplement the effect of vacuum applied to one end thereof. Desirably, a disuniting effect is produced upon compacted formations strands of the removed material, by creating turbulence within the passage and/or by mechanical impact thereupon.
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申请公布号 |
US4599926(A) |
申请公布日期 |
1986.07.15 |
申请号 |
US19840631193 |
申请日期 |
1984.07.16 |
申请人 |
PRESTON ENGRAVERS, INC. |
发明人 |
CARLSON, JR., LEROY H.;KESTEN, MARTIN |
分类号 |
B26D7/18;(IPC1-7):B26D7/18 |
主分类号 |
B26D7/18 |
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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