Fin folding machine for corrugating sheet material

B - Operations – Transporting – 21 – D

Patent

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Details

B21D 13/02 (2006.01)

Patent

CA 2202262

A fin folding machine (10) including a pair of opposed clamping tools (32, 34) disposed on opposite sides of a thin sheet material (12). The clamping tools (32, 34) are movable transverse to and into engagement with the material (12) to clamp the material (12). A pair of opposed forming tools (36, 38) are disposed on opposite sides of the material (12) to fold the material (12) in one direction by one of the forming tools (36, 38) and in the opposite direction by the other of the forming tools (36, 38). Gas charged accumulators apply a force to continuously urge one of the clamping (32, 34) and forming tools (36, 38) into engagement with the material (12). Camming devices (102, 104, 106, 108) move one of the clamping (32, 34) and forming tools (36, 38) away from engagement with the material (12) to a clearance position, preventing respective clamping (32, 34) or forming tools (36, 38) from exceeding a predetermined material engagement stop position regardless of the operating speed of the fin folding machine (10).

Machine à plier des ailettes (10) comprenant une paire d'outils de serrage (32, 34) opposés disposés de deux côtés opposés d'une tôle mince (12). Les outils de serrage (32, 34) sont déplaçables transversalement par rapport à la tôle (12), avec laquelle ils viennent en contact pour la serrer. Une paire d'outils à former (36, 38) opposés sont disposés de deux côtés opposés de la tôle (12), qui est pliée dans un sens par l'un des outils à former (36, 38) et dans l'autre sens par l'autre (36, 38). Des accumulateurs à gaz appliquent une force de manière à maintenir constamment un des outils de serrage (32, 34) et dans l'un des outils à former (36, 38) contre la tôle (12). Des dispositifs à cames (102, 104, 106, 108) retirent l'un des outils de serrage (32, 34) et l'un des outils à former (36, 38) de la tôle (12) pour les mettre en position de dégagement, de manière à empêcher que ces outils ne dépassent une position d'arrêt prédéterminée, indépendamment de la vitesse de fonctionnement de la machine à plier des ailettes (10).

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