| 摘要 |
PURPOSE:To freely change a bending direction as necessary by use of one bender, by selectively operating 2 bending work parts, in a both right and left bending type bender. CONSTITUTION:Bending work of a rod-like material (a) is preformed by use of a working part M. Subsequently, it is shifted to the next bending, and in case when the bending direction is changed to the right from the left, and vice versa, a holding frame body 7 is rotated by 180 deg. by operating a rotation driving machine. In case of this inversion, since the rod-like material (a) gets in the way of rotation of the holding frame body, it is made to get free to the outside of its rotating locus once by driving machines 9A, 9B, and after that, it is reversed, is returned to its original position again by the driving machines 9A, 9B, and is set to a bending mold 3 being different from that of the previous time. In this way, the rod-like material is bend-worked in order, linearly feeding it by a feed machanism. |
