| 摘要 |
A device for punching flat packaging elements or the like such as sheets of paper, cardboard or corrugated board, comprising punching blades, which project from a punching die while serving as a shaping or cutting element. The sheet placed on a supporting punching plate is assigned to the blade tips or cutting edges of the punching blades, and a layer made of a magnetic material is placed between the surface of the supporting punching plate and the sheet to be punched. The layer is made of an elastic magnetic material, optionally from a magnetized plastic. It can be provided in the form of a thin mat, which is made of magnetic material and which spans the contact surface for the sheets to be punched. |
