Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1993-04-13
1994-08-30
Crane, Daniel C.
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
7245302, B21D 504
Patent
active
053416660
ABSTRACT:
A device for moving blades of a press used for bending sheets, has blades supported and placed in motion by a bending 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 bending block with respect to the counter blades, there is provided a track along which the bending block rolls. There are also provided two connecting rods, the upper end of which is hinged to the lower part of the bending 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 a fluid dynamic cylinder. There may also be provided a second fluid-dynamic cylinder which forms with the first fluid-dynamic cylinder a structure having cylindrical symmetry.
REFERENCES:
patent: 4843862 (1989-07-01), Salvagnini
patent: 4901555 (1990-02-01), Shimoichi
patent: 4944176 (1990-07-01), Glorieux
Crane Daniel C.
Sapim Amada S.p.A.
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