Punch selectable punch press

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 37/04 (2006.01)

Patent

CA 2157731

For a punch mechanism, a selector rail which by shifting can change the punch hole pattern by activating or deactivating select punches along the rail. In a preferred embodiment, the punch can be quickly changed from a three hole standard punch to a two hole standard punch by activating and deactivating two select punches. The selector rail locks to the selected punch for both driving and retraction of the punch by force of an electric motor and gear train.

Perforateur comprenant une traverse de sélection qui en se déplaçant peut changer la position du trou de perforation en activant ou en désactivant des perforations déterminées le long de la traverse. Dans un modèle préféré, le perforateur peut être changé rapidement de trois emporte-pièce à deux emporte-pièce en activant ou en désactivant deux perforations déterminées. La traverse de sélection bloque à la perforation prédéterminée pour l'entraînement et la rétraction de la perforation par un moteur électrique et un train d'engrenages.

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