Patent ID: 6446479
Filing Date: 2002-09-10
Classification: B21F,B21J,B21K

Abstract:
A handling apparatus for forgiving machines, suitable for advancing wire (52), having any of a plurality of predetermined diameters, for the manufacture of fastners, the apparatus comprising:a.) a first cam (12), keyed on a first motor-driven rotary shaft (10); b.) a first angularly orientable lever (14), having a first branch (14â€³) provided at a free end thereof with a roller (16) cooperating with the first cam (12), and a second branch (14â€²), having a rectilinear portion (18); c.) a screw (20), guided by a support (22) and rotatable alternatively clockwise and counter-clockwise, the rectilinear portion (18) of the second branch of the first lever (14) being parallel to screw (20) when the roller (16) contacts the cam (12) when the cam (12) is at a maximum radius; d.) a sliding carriage (32), pivoted on a pin (34) and provided at a free end with a needle (40) that strikes the rectilinear portion (18) of the second branch of first lever (14); e.) a second angularly orientable lever (44), provided at one end thereof with a roller (42) which is in contact with a bar (36) movable by engagement with the first lever (14), the second lever (44) having an opposite end thereof which cooperates with a carriage (50) that is movable in a direction parallel to a direction of advance of the wire (52); f.) wire grasping means (56, 60), for grasping the wire (52); g.) a second cam (70), mounted alternatively on a second shaft and a rotary side shaft (72) of the forging machine, which cooperates with a needle (74) fixed to a lower end of a third lever (76), which is pivoted on a static support of the forging machine.