| 摘要 |
A right and left synchronous system for a hydraulic press brake machine is provided to maximize reliability in use by effectively maintaining left and right synchronousness of a lower mold cavity lifted by a hydraulic cylinder. A right and left synchronous system for a hydraulic press brake machine includes a clutch operation valve(1), a first cylinder(S1) on a center of a right and left synchronous system for a hydraulic press brake machine, and a third cylinder(S3) on one side thereof are connected to a first supply line(L1). The first supply line and a second cylinder(S2) on the other side thereof are connected to a second supply line(L2). First and second check valves(10,20) are connected to the second supply line adjacent to the second and third cylinders and have manometers for checking a hydraulic supply amount to the second and third cylinders to implement left and right synchronousness of a lower mold cavity. Third and fourth supply lines(L3,L4) are formed between the first and second supply lines in parallel and connect the clutch operation valve and the second supply line. |
