| 摘要 |
A device for moving blades of a press used for bending sheets, has blades supported and placed in motion by a cutter block which is movable in the vertical direction with respect to two counter blades with the sheet to be bent being placed between the two counter blades. For the purpose of imparting motion to the cutter block with respect to the counter blades, there is provided a track along which the cutter block rolls. There are also provided two connecting rods, the upper end of which is hinged to the lower part of the cutter block. The two rods are pivoted in the lower part to an arm (7) which is placed substantially radially and which is integral with a cylinder (8). Cylinder (8) is integral with a second arm (9) which is connected with another cylinder. There may also be provided a third cylinder which forms with the second cylinder a structure having cylindrical symmetry. <IMAGE> |
