| 摘要 |
PURPOSE:To reduce man power and improve the working speed, by providing a working table, on which steel plates are placed one by one, hydraulic cylinder, etc., and facilitating to lift up steel plates following to the bending work. CONSTITUTION:A steel plate which is carried one by one onto a working table 16 installed on a lifting lever 13 is pressed and bent by a top die on a bottom die B at the time of working. At this time, the working table 16 is lifted in the direction shown by an arrow 13' around a supporting shaft 14 by the working force of a hydraulic cylinder 15 for following. Then an eccentric distance D is corrected between the V-groove line of the bottom die B and the supporting shaft 14 by a link mechanism 17 for correcting operation of the eccentric distance D. Then the working table 16 is instantaneously lifted up following to the upward movement of one side of the steel plate at the time of bending. Therefore, no attendant for the lifting up of the working table 16 is required and the working speed is improved. |
