| 摘要 |
The invention relates to a hole punching device for producing holes in punched cards. The aim of the invention is to provide a fast and reliable hole punching device that has a simple mechanical design while reducing the risk of multiple holes. The inventive hole punching device comprises a plurality of punching dies for providing a punched card with holes that are arranged in at least one row. The hole punching device is provided with a swivel plate that is disposed in the longitudinal direction of the row and that can be swiveled between a punch position and a non-punch position, every swivel plate carrying a punch die. |
