| 摘要 |
PROBLEM TO BE SOLVED: To provide an unbending tool for a plate bending device capable of easily unbending a plate excessively bent.SOLUTION: A plate bending device includes an upper table, an upper die 5, a lower table, and a lower die 9, wherein a plate 11 is disposed between the upper die 5 and the lower die 9, and by moving the upper table relative to the lower table, the plate 11 is bent by the upper die 5 and the lower die 9. An unbending tool 1 for the plate bending device is used for the plate bending device and unbends a processed portion 15 of the plate 11 excessively bent. It includes an upper returning member 17 which is disposed at the upper die 5 and pressurizes an obtuse angle side of the processed portion 15 of the plate 11 by moving the upper table and a lower returning member 19 which is disposed at the lower die 9 so as to be positioned on an acute angle side of the processed portion 15 of the plate 11 and unbends the processed portion 15 by pressurizing the processed portion 15 by means of the upper returning member 17. |
