The working principle and selection of hydraulic bending machine

The hydraulic bending machine has the advantages of low noise, stable operation and good seismic performance. So what is its working principle? How should we choose when purchasing a hydraulic bending machine?

The working principle of hydraulic bending machine:

1. First, turn on the power supply, turn on the switch on the control panel, and then start the oil pump, so that you can hear the rotation of the oil pump.

2. Stroke adjustment, you must pay attention to adjusting the stroke when using it, and you must test it before bending. When its upper die goes down to the bottom, there must be a gap of plate thickness. Otherwise, it will cause damage to the mold machine. The adjustment of the stroke is also electric quick adjustment.

3. For the selection of the bending notch, it is generally necessary to select a notch with a width of 8 times the thickness of the plate. For bending 4mm sheet, you need to choose a notch of about 32.

4. The rear gauge adjustment generally has electric quick adjustment and manual fine adjustment, the method is the same as that of the shearing machine.

Selection of hydraulic bending machine:

Whether variable is required: radial piston pump, axial piston pump, single-acting vane pump are variable pumps.

The working pressure of the bending machine: the plunger pump pressure is 31.5MPa; the vane pump pressure is 6.3MPa, which can reach 21MPa after high pressure; the gear pump pressure is 2.5MPa, which can reach 25MPa after high pressure.

Working environment: The gear pump has good anti-pollution ability.

Noise index: Low-noise pumps include internal gear pump, double-acting vane pump and screw pump. The instantaneous flow of double-acting vane pump and screw pump is uniform.

Efficiency: The total efficiency of the axial piston pump is high; the pump with the same structure, the pump with a large displacement has a high total efficiency.

The above is the introduction of the world press machine, I hope it will be helpful for everyone to understand the hydraulic bending machine.

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