With the wide application of bending machines in construction machinery products, in order to satisfy their product quality and production requirements, their quality standards have gradually improved. In the cold state, the machine can use the equipped general mold (or special mold) to bend the sheet metal into various workpieces with a few cross-sectional shapes required. The rationality of the bending process directly affects the product forming scale and appearance. After the process of controlling and preventing bending defects, the corresponding useful process methods are adopted to improve the quality of the workpiece.

The general hydraulic bending machine adopts all-steel welded structure, vibration aging treatment eliminates internal stress, and has good stability. Moreover, the integrated hydraulic system, transmission on the slider, large-scale speed adjustment, stable and reliable work, the slider stroke adjustment organization and the overall composition of the oil cylinder, improve sealing.

The following points should be paid attention to in the operation of hydraulic bending machine:

1. In this process, the descent will be halted actively after the shortcomings of pressurization, and the pressure will slow down during the process of a large increase in pressure, and it cannot fall or rise.

2. Actively stop the pressure; adding is normal, not a rapid drop, but the normal pressure of the product.

3, as high and low voltage products. Sometimes it is half normal, and sometimes it is half abnormal. But when the relationship is normal, the two parties are not normal. Normal and abnormal between the two sides of the strait.

Share some emergency solutions for hydraulic bending machine failures:

1. Whether the solenoid coil of the mold overflow valve of the share hydraulic bending machine is energized, and whether the voltage of the share solenoid coil meets the requirements. If it is the above reason, please check the relevant electrical reasons.

2. Check whether the cartridge valve is stuck or the main spool is stuck, and the damping orifice is blocked. If it is for the above reasons, please disassemble the hydraulic bending machine mold overflow valve and clean it, and then reinstall it.

3. Three-phase power supply is adjusted in phase, causing the motor to rotate.

4. Check whether the oil level of the oil tank of the hydraulic bending machine mold is too low, the filling port is not flooded, and the upper cavity of the cylinder is filled with liquid during fast forwarding, causing a lack of filling. For the above reasons, it is possible to add oil from the tank to more than 5mm above the filling port so that the filling hole is flooded.

5. Check whether the fast forward speed is too fast, causing lack of fluid filling. For the above reasons, the fast forward speed can be reduced by modifying the parameters of the hydraulic bending machine mold system.

6. ​​Check whether the hydraulic valve of the hydraulic press brake is opened. If it is due to oil contamination, the valve core of the filling valve is not sensitive and jammed, causing lack of filling. Need to clean the hydraulic pressure brake mold filling valve to install from the beginning to make the valve core sensitive and free.