How to solve the problem of strong and weak power of laser marking machine? The power of my laser ma

Solution. First, the printed handwriting is blurred, and the marking speed is too fast.

Solution: Marking too fast and slowing down. The laser spot changes, re-adjust, so that the spot is the brightest and roundest, if it is OK, that is, notify the manufacturer.

Second, the standard value of the switching power supply voltage of the laser decreases, which can be measured by using a multimeter, and the voltage of the laser power supply 30V decreases, which is obviously insufficient.

Solution: Replace the new switching power supply, and after normal operation, please increase the laser power, 100% light, and then test whether the laser power supply voltage is normal, please keep it for 5 minutes, if the voltage is kept at 30V within 5 minutes, it proves that the switching power supply can be used normally, if not, please replace the power supply with a larger power.

3. Through the dimming paper, the laser does not enter the galvanometer, and the laser optical system is not a problem.

Solution: Adjust the direction of the laser and tighten it. The beam expander should also be clear: the light enters from the center of the beam expander, and then adjusts to the center of the beam expander to produce light.

Fourth, the marking lines are thick, the marking is weak, and there may be a problem: the surface of the workpiece is no longer focused on the plane.

Solution: Adjust the surface of the workpiece to the focal point, and pay attention to it in the future operation, change the marking material, and remember to adjust the focal plane.

Fifth, the position of the center of the optical path non-galvanometer into the light hole, this problem is more complicated, generally the old-fashioned machine has the above problem, the solution:

1. How small the deviation is, the requirements can be adjusted through the light outlet of the beam expander (the laser at the light inlet must be in the center of the beam expander, and the normal deviation cannot exceed 1mm).

2. If the deviation exceeds 1mm, just to move and re-fix the laser, it may be necessary to disassemble the laser and then process a set of appropriate holes to calibrate the position of the laser. On this issue, we should not blindly adjust the optical path through the beam expander adjustment, once the deviation is too large, the laser power and the laser spot shaping effect will be greatly reduced, so that the laser marking effect has a great impact, which is mainly reflected in:

a. The output power of the laser decreases, so that the laser power is increased to process, which greatly shortens the life of the laser.

b. The laser cannot completely enter the field mirror, and the laser intensity is uneven within the effective marking range.

c. The laser enters a certain angle of the galvanometer, and the computer software sets the center to deviate from the physical center of the galvanometer light output, and the marking will have obvious unadjustable distortion.

d. The light spot is seriously deformed, and the beam expansion effect of the light spot cannot be played.

Sixth, the marking software has changed the version, and the mode of laser light is not selected.

Solution: Re-select the correct light mode.

7. The light and insinuation of the marking software of the laser marking machine have been modified.

The faster the speed, the greater the power and the faster the frequency, they are proportional to each other, and vice versa, the frequency is smaller, the power is smaller, and the corresponding speed is smaller.

It is not easy to say about electronic products, the number of pulses per unit time is called the marking frequency of the fiber laser marking machine. This is easy to understand. If the marking frequency is large, the laser spots will be dense, and if the marking frequency is small, the laser spots will be loose.

Although it may not be visible to the naked eye, if we put the marked area under an electron microscope and zoom in, we can see that what appears to the eye as a continuous straight line is actually composed of many points. The higher the marking frequency, the denser the laser dots will be, and the marked place will look smoother. It is difficult to define whether you understand or not.

The abnormal reason why the laser marking machine cannot mark the light.

Something went wrong: the marking did not show light.

Cause: The software laser type is set incorrectly.

The optical path is wrong. The laser power supply is not energized or damaged.

The control signal cable is broken or the plug is loose or the control card is broken.

The laser is bad. Workaround:

The laser type is set to CO2

Adjust the optical path. There is AC 220V no DC 96V or 115V output laser power supply is bad, no AC 220V input check line, AC contactor is not engaged, intermediate relay is not engaged, and whether the water tank is operating normally.

Re-weld the breakpoint, re-insert the joint and tighten the fixing screw, replace the control card with the fault of the control signal signal, and replace the laser.

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