Rotary punch

B - Operations – Transporting – 26 – D

Patent

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Details

B26D 1/56 (2006.01)

Patent

CA 2651310

A rotary punch includes an upper die plate, a lower die plate, and a support frame having a drive assembly that moves the upper die plate horizontally and vertically along a generally circular pathway. The lower die plate is connected to the support frame for movement in a linear horizontal direction only. The upper die plate is vertically slidably connected to the lower die plate by way of one or more vertical rods attached to the upper die plate that extend down through bushings provided in the lower die plate. In operation, the lower die plate horizontally follows the upper die plate as the latter is moved along its circular pathway. Concurrently, the upper plate moves towards and away from the lower plate. This maintains a substantially constant alignment between the die plates for carrying out a periodic machining operation on a moving web of material passing there between.

L'invention porte sur un poinçon rotatif comprenant une matrice supérieure, une matrice inférieure et un bâti muni d'un système d'entraînement qui déplace la matrice supérieure horizontalement et verticalement sur une trajectoire sensiblement circulaire, tandis que la matrice inférieure liée au bâti ne peut se déplacer que linéairement et horizontalement. En outre la matrice supérieure coulisse verticalement par rapport à la matrice inférieure le long d'une ou plusieurs tiges verticales fixées à la matrice supérieure et s'étendant vers le bas à travers des douilles solidaires de la matrice inférieure. En marche, la matrice inférieure suit horizontalement la matrice supérieure dans son mouvement circulaire tandis que simultanément la matrice supérieure se rapproche ou s'éloigne de la matrice inférieure. Cela maintient un alignement sensiblement constant entre les matrices permettant d' effectuer une opération d'usinage périodique sur une bande mobile se déplaçant entre elles.

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