Metal deforming – By relatively movable offset tool-faces – With tool motion in fixed path
Patent
1989-12-29
1992-03-03
Jones, David
Metal deforming
By relatively movable offset tool-faces
With tool motion in fixed path
72407, 7245303, 72443, B21D 502
Patent
active
050921517
ABSTRACT:
The press is of the type including a pair of tool-holders mounted in a frame and carrying cooperating tools (die and punch). At least one of the tool-holders is motor-driven and is movable towards the other tool-holder. According to the invention, the press includes first drive means arranged to make one of the tool-holders travel a fairly long distance towards the other tool and second drive means, distinct from the first, for making this same tool-holder or the other tool-holder perform a subsequent, fairly-short working stroke to bend the sheet metal and to effect any coining of the bend. Preferably both of the tool-holders are movable, the second drive means being arranged to make the respective tool-holder complete a fairly short bending stroke, and the press includes third drive means, distinct from the first and second, arranged to make the same tool-holder and the other tool-holder complete a virtual stroke for coining the bend.
REFERENCES:
patent: 3143007 (1964-08-01), Thompson
patent: 3707866 (1973-01-01), Braver
patent: 3841140 (1974-10-01), Hryc
patent: 4559807 (1985-12-01), Gango et al.
patent: 4646555 (1987-03-01), Postupack
patent: 4838069 (1989-06-01), Walker et al.
patent: 4924693 (1990-05-01), College et al.
Dreis & Krump Manufacturing Co., "Select-a-Speed", Oct. 29, 1964, Iron Age, p. 104.
U.K. Search Report dated 3/15/90.
Catti Alberto A.
Sartorio Franco
Vergano Stefano
Amada Company Limited
Jones David
LandOfFree
Sheet workpiece bending machine does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sheet workpiece bending machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sheet workpiece bending machine will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-264190