Zero force roll release for high speed press feed units

Details Zero force roll release for high speed press feed units Zero force roll release for high speed press feed units

B - Operations, Transporting

30

B

B30B 15/30 (2006.01) B21D 43/09 (2006.01) B65H 20/04 (2006.01)

Patent

CA 2220309

The invention includes an apparatus for intermittently feeding a workpiece to a press, the device including a feed roll with a pinch roll opposite the feed roll, so that a workpiece may pass between the rolls. A servo screw, pinch roll actuator is connected to the pinch roll so that during apparatus operation, changes in pinch roll pressure may be developed between the pinch roll and the workpiece without causing loss of contact between the pinch roll and the workpiece. A new belt drive system and method of pinch roll control is also disclosed.

L'invention a trait à un appareil acheminant par étapes des pièces à ouvrer vers une presse. L'appareil est constitué d'un rouleau d'alimentation à l'opposé duquel se trouve un rouleau pinceur afin qu'une pièce à ouvrer puisse passer entre ces rouleaux. Un servomoteur à vis est relié au rouleau pinceur et permet de régler la pression qu'exerce ce dernier sur la pièce à ouvrer, sans entraîner de perte de contact entre ces deux éléments. L'invention a également trait à un nouveau système à courroie d'entraînement et à une nouvelle méthode de contrôle du rouleau pinceur.

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