What is the main reason why the hydraulic press brake is not pressing?

Hydraulic press brake molds are usually used to process sheet metal forming tools, and have always played an important role in the development of molds, at that time, it is undeniable that hydraulic press brake molds often have some problems that hinder the production development of molds. Hydraulic press brake mold common fault types and emergency solutions.

1. Whether the solenoid coil of the mold relief valve of the proportional hydraulic bending machine is electrified, and whether the voltage of the proportional solenoid coil meets the requirements, if the above reasons, please check the relevant electrical reasons;

2. Check whether the cartridge valve is stuck or whether the main valve core is stuck, and the damping hole is blocked, if it is the above reasons, please disassemble the hydraulic bending machine mold relief valve and clean it and reinstall it;

3. Three-phase power supply phase modulation, resulting in motor reversal;

4. Check whether the oil level of the mold tank of the hydraulic bending machine is too low, the liquid filling port is not flooded, and the liquid filling of the upper cavity of the oil cylinder is caused by the empty filling of the liquid when fast forward. For the above reasons, the oil tank can be added to the liquid filling port more than 5mm above the filling port, so that the filling hole is completely flooded;

5. Check whether the fast forward speed is too fast, causing insufficient liquid filling. For the above reasons, the rapid traverse speed can be reduced by modifying the parameters of the hydraulic press brake mold system;

6. Check whether the mold fluid valve of the hydraulic filling bending machine is fully opened, if it is because of oil pollution, the valve core of the filling valve is not flexible and there is a stagnation phenomenon, resulting in insufficient liquid filling. It is necessary to clean the mold filling valve of the hydraulic press brake and reinstall it to make the valve core flexible and free.

This problem must be on the mold connection plate, is the slope of the inclined block of the mold connection plate is large, and the overall left movement is under high pressure, which can explain a problem, find a way to replace the mold connection board.

Ball head wear generally does not lead to deviation Because there is a side guide rail The ball head will not be so easy to wear I don't know what kind of mold you have on the mold See if the working surface of the relevant fit is completely in contact Check it with a feeler gauge It is estimated that there is an intermittent contact between the upper die and the slider In the state of stress that leads to deviation, you see if the screw fastening the upper die has flowers! (The upper mold is fixed on the slider, it should not deviate) contact number, I have information.

It should be that one of the copper ball joints on both sides is worn!

You're saying that the angles are different. If it's not much, put some paper in the lower die! If there is a lot of difference in power, (I don't know what to call it when you control the depth.)

Disassemble with the inner six, which is the highest on the right, light it in the back of the close, remember to turn to the left, (the direction is the person looking at the left side of the press brake).I hope you'll know it! Don't you have a master?

It's just the little things.

Check the system pressure, such as abnormal system pressure:1. The pressure relief valve is not adjusted well, resulting in low system pressure.

2. The oil pump is damaged, resulting in low system pressure.

If the system pressure is normal, it should be checked.

1. Check whether there is oil stringing in the oil cylinder.

2. Check whether the solenoid valve is working normally and whether there is any blockage.

The hydraulic press brake comprises a bracket, a workbench and a clamping plate, the workbench is placed on a support, the workbench is made up of a base and a pressing plate, the base is connected with the clamping plate by a hinge, and the base is composed of a seat shell, a coil and a cover plate.

The coil is placed in a recess of the housing shell, which is topped with a cover plate. When used, the coil is energized by the wire, and the gravitational force is generated on the pressing plate after the power is applied, so as to realize the clamping of the thin plate between the pressing plate and the base. Due to the use of electromagnetic clamping, the pressure plate can be made into a variety of workpiece requirements, and workpieces with side walls can be processed.

1. Whether the solenoid coil of the proportional relief valve is electrified, and whether the voltage of the proportional solenoid coil meets the requirements, if the above reasons, please check the relevant electrical reasons.

2. Check whether the cartridge valve of the bending machine is stuck or whether the main valve core is stuck, and the damping hole is blocked, if it is the above reason, please disassemble the relief valve and clean it and reinstall it.

Settle. Check whether the "two-position four-way" reversing valve that controls the liquid filling control oil circuit is working normally, if so, it causes the liquid filling valve to be not closed, so that the upper cavity is connected with the liquid filling port of the oil tank, and the pressure cannot be established. The reason why the valve is not working properly is that it is not energized or it is stuck.

No matter what hydraulic equipment, there are only a few reasons why there is no pressure:1The pump doesn't work, and I can't put pressure on it; 2.Where there is a leak, there is a leak; 3.The pressure of the relief valve is lowered, and the oil is discharged before the desired pressure is reached;

If there is no pressure at all, whether the power supply is on or not, whether the output and input switch is damaged. Is there a problem with the pressure gauge.

The press brake is not up or down, and there is no pressure.

Dear, hello, something is delayed, please Haihan. The lack of pressure in the hydraulic press brake is a problem of the hydraulic mechanism, and there are generally the following defects: 1

The pump doesn't work, and I can't put pressure on it; 2.Where there is a leak, there is a leak; 3.The pressure of the relief valve is lowered, and the oil is discharged before the desired pressure is reached;

Hello dear 1Inconsistent angle: Possible causes include unbalanced tool molds, poor tool molds, insufficient pressure, improper machine adjustment, etc.

2.Indentation: Possible causes include unbalanced die form, poor die form, insufficient pressure, unstable bottom support, etc.

3.Breakage: Possible causes include inappropriate materials, excessive bending angles, poor die form, insufficient pressure, etc.

4.Slippage: Possible causes include poor die form, unsuitable material, poor friction, insufficient pressure, etc.

5.Discounts: Possible causes include excessive bending angles, unsuitable materials, poor die molds, etc.

6.Flanging: Possible causes include unbalanced die form, poor die form, insufficient pressure, excessive bending angle, etc.

7.Burrs: Possible causes include poor die form, unsuitable material, insufficient pressure, excessive bending angle, etc.

8.Inaccurate bending angle: possible reasons include improper machine adjustment, poor tool mold, excessive bending angle, etc.

9.Noisy machine: Possible causes include damage to machine parts, improper adjustment of the machine, etc.

10.High vibration of the machine: Possible causes include damage to machine parts, improper adjustment of the machine, etc.

Hello dear, it's an honor to serve you. The guide gap between the slider and the guide rail is too large, and it makes an abnormal sound. This type of failure is due to the increase in the gap due to the long service life of the guide rail.

It is necessary to check the degree of wear of the guide rail pressing plate, and determine whether to replace the guide rail pressing plate according to the degree of wear and readjust it to meet the required clearance. Fault 2: Failure of the rear transmission material.

The failure of the rear transmission material is due to the disengagement of the key strip of the transmission shaft from the timing pulley or the slippage of the timing belt. Such faults require the reassembly of the key strips and timing belts, and the inspection of the electrical parts. Fault three:

The deviation of the parallelism between the linear guide rail of the rear gauge beam and the center line of the mold is too large. Such failures require the "X" axis timing belt to be loosened, readjusted to within parallelism tolerances, and re-attached to the timing belt. Fault four:

The connection between the oil cylinder and the slider is loose, which causes the bending angle to be inaccurate or the machine cannot find the reference point. This type of failure requires a re-inspection of the tension slide and cylinder connection nut.