Apparatus for removing dross ridges from a metal workpiece

B - Operations – Transporting – 23 – D

Patent

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Details

B23D 1/26 (2006.01) B22D 11/126 (2006.01) B23D 1/22 (2006.01) B23D 79/02 (2006.01) B23K 7/06 (2006.01)

Patent

CA 2248519

An apparatus for removing the dross ridges which are formed on the lower surface of a metal workpiece during torch cutting of the workpiece. The apparatus includes a support beam having generally flat upper and lower surfaces, and a cutting edge extending longitudinally along each of its four corners. The beam is positioned to extend across and below the workpiece path of travel, and the beam is rotatable between a neutral position wherein one of the upper and lower surfaces is just below the pass line of the workpiece, and opposite tilted positions in which one of the cutting edges engages and removes a dross ridge on the lower surface of the workpiece. Each of the cutting edges comprises a plurality of separately pivotable cutting blades, so that the cutting edge formed by the blades is able to closely conform to a non-linear surface contour of the workpiece.

Dispositif servant à éliminer les scories qui se forment sur la surface inférieure d'une pièce de métal à travailler pendant le découpage au chalumeau de cette pièce. Le dispositif comprend un bras support présentant des surfaces supérieure et inférieure généralement planes, et un bord tranchant s'avançant longitudinalement le long de chacun de ses quatre coins. Le bras support est positionné transversalement par rapport à la direction de déplacement de la pièce à travailler et sous celle-ci, et peut pivoter entre une position neutre où l'une des surfaces supérieure et inférieure se trouve directement sous la ligne de passage de la pièce à travailler, à des positions inclinées opposées dans lesquelles l'un des bords tranchants attaque et enlève les scories accumulées sur la surface inférieure de la pièce à travailler. Chacun des bords tranchants comprend plusieurs lames tranchantes tournant individuellement, de sorte qu'ils peuvent suivre de près un contour de surface non linéaire sur une pièce à travailler.

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