| 摘要 |
PURPOSE: To provide a width bending machine in which two supporting bars are disposed under an upper mold with being distanced from each other and support the workpiece while they are being rotated around first and second shafts as much as a drooping amount of a workpiece during bending of the workpiece so as to laterally bend the workpiece and prevent formation of crack or distortion defects. CONSTITUTION: The width bending machine(10) is characterized in that an upper mold(30) vertically moved up and down by a driving unit(20) is formed in a sectorial shape, a first supporting bar(60) and a second supporting bar(70) are mounted by a first shaft(61) and a second shaft(71) on a lower mold(50) fixed to a workbench(40), and two of the supporting bars are disposed with being distanced from each other such that the supporting bars support the workpiece while the first and second supporting bars are being rotated around the first and second shafts as much as a drooping amount of the workpiece when bending a workpiece(90) put on the first and second supporting bars by lowering the upper mold, wherein the lower mold comprises a fixed member(51) on which a vertical part(52) and a horizontal part(53) are integrally formed, and a width adjusting member(55) mounted on the vertical part of the fixed member such that the width adjusting member and the fixed member face each other, and a plural shaft holes into which the first and second shafts are inserted with being oppositely directed to each other and a plural pin holes(59) into which stopper pins(65,75) are inserted with being oppositely directed to each other are formed on the vertical part of the fixed member and the width adjusting member respectively.
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