Improved stripper plate retention system

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 45/00 (2006.01)

Patent

CA 2487877

A punch guide assembly is provided for removably carrying a stripper plate. The punch guide assembly comprises a punch guide and a stripper plate guide movable axially with respect to the punch guide. The stripper plate guide has a locked position wherein the stripper plate is secured to the punch guide assembly and an unlocked position wherein the stripper plate can be readily removed from the punch guide assembly. The stripper plate guide is resiliently biased axially toward its unlocked position yet is restrained against axial movement relative to the punch guide when in its locked position.

Selon cette invention, un ensemble guide de poinçon peut supporter de façon amovible une plaque d'éjection. Cet ensemble guide de poinçon comprend un guide de poinçon et un guide de plaque d'éjection mobile axialement par rapport au guide de poinçon. Le guide de plaque d'éjection possède une position verrouillée dans laquelle la plaque d'éjection est fixée à l'ensemble guide de poinçon et une position déverrouillée dans laquelle la plaque d'éjection peut être facilement retirée de l'ensemble guide de poinçon. Le guide de plaque d'éjection est sollicité souplement axialement en direction de sa position déverrouillée, tout en étant limité dans son mouvement axial par rapport au guide de poinçon lorsqu'il se trouve dans sa position verrouillée.

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