| 摘要 |
<p>When punching holes and objects (12), respectively, in non-metallic sheet-like material, a hitherto unknown quality and working speed can be achieved by letting a cutting tool (10, 13) from either the top side and/or the under side of the material (1) press in to a point leaving a non-cut ring of a thickness of eg. 0.01 mm. The material (12) can then be removed from the surrounding material (1) either by means of a generally known pressing-out tool or for instance by means of the compressed air inlet while the cutting tool (10, 13) is in the skin (1) or after its removal. For operating the cutting edges (10, 13) these may be mounted on a top and a bottom linear motor (4, 2 and 14, 15) which may furthermore control the pressing-out means (11). This will permit a fully automatic control of the tools.</p> |
