| 摘要 |
PURPOSE: A bending device of a progressive mold is provided to obtain accurate bent shape of a material by holding the material with a wider support area. CONSTITUTION: A bending device of a progressive mold comprises lower and upper die holders(50,70) with lower and upper die retainers(55,74), a drive punch(80), a movable cam(65), a movable die(60), and a shape punch(90). The upper die holder ascends and descends relative to the lower die holder. The drive punch is driven along with the upper die holder. The movable cam interlocks with the drive punch to move across the direction of the drive punch. The movable die interlocks with the movable cam to selectively protrude above the lower die retainer. The shape punch is driven along with the upper die holder. When the movable die protrudes out of the retainer, the shape punch strikes the movable die to shape a material.
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