Flying shear

Details Flying shear Flying shear

B - Operations, Transporting

23

D

B23D 31/00 (2006.01) B23D 25/06 (2006.01) B23D 25/12 (2006.01) B26D 1/56 (2006.01)

Patent

CA 2366975

The invention relates to a flying shear comprising at least one drum which is equipped with a blade, whose peripheral speed can be synchronised with the feed rate of the rolling strip and comprising an anvil which is located opposite the drum and optionally a controllable adjusting device allocated to said drum. The flying shear is configured in such a way, that wear is minimised and that extended tolerances are allowed during the production thereof, without impairing the cutting performance. This is achieved when the blade drum (2) is in the working position, by the retention of a space (8) between the anvil drum (3) and the blade drum (2) which ensures that the rolling strip (4) severs at its weakest point, as a result of the longitudinal forces which are exerted on said rolling strip (4).

L'invention concerne une cisaille volante comportant au moins un tambour pourvu d'une lame, dont la vitesse de rotation peut être synchronisée avec la vitesse d'avance de la bande laminée, une enclume placée en vis-à-vis du tambour, et éventuellement un dispositif de positionnement commandé, associé audit tambour. Cette cisaille doit être conçue de façon que son usure soit minimisée et que, lors de sa production, des tolérances élargies soient garanties sans que les performances de coupe en souffrent. A cet effet, il est proposé que, lorsque le tambour à lame (2) est en position active, il reste un espace (8) entre le tambour enclume (3) et le tambour à lame (2), espace qui garantit une rupture de la bande laminée (4) au niveau du point d'affaiblissement, en raison des forces longitudinales qui s'exercent sur elle.

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