Five common faults of laser marking machine and their solutions

Five common faults and solutions of laser marking machine

When using the laser marking machine, if there is an abnormality, if the problem cannot be solved in time, it will directly affect the workshop output. The maintenance of the laser marking machine is more troublesome, but its principle is relatively simple. There are many problems that can be solved by themselves without the need for professional and technical personnel to maintain. The following is the common laser marking machine. 5 troubleshooting methods.

equipment

1. What should I do if the laser marking machine can't print the characters?

If the F2 can't be marked, there may be a machine failure.

1. The software laser type is set incorrectly;

2. The light path is wrong;

3. The laser power supply is not energized or damaged;

4. The control signal line is broken or the plug is loose or the control card is broken;

5. The laser is broken.

Solution: If you can play with F2, you can press F3, then click on the port, you will see the math behind the start marking, adjust it, 0-15 can be tried one by one, the machines of different brands seem to be different

2. What to do with the focus shift of the laser marking machine

Because each focusing mirror corresponds to the range of the depth of focus, and using the defocus method will easily lead to a large-scale marking pattern, the edge is at the critical point of the depth of focus or beyond the range of the depth of focus, so it is very easy The effect is uneven. Therefore, the method of off-focus marking is to consider the problem of laser energy.

Fiber Laser Marking Machine

3. The logo pattern of the laser marking machine is partially unclear

1. Solution: Check whether the thickness of the molded plate is uniform, whether the molding pressure is too small, whether the temperature is too low, and whether the machine accuracy is reduced.

2. Key points of process control: The thickness error of the die plate should be controlled at 0. Within O01mm, the hardness should be kept at 230-280N/mm. Because the hologram is molded to form interference fringes by applying a certain pressure to the molding roller, if the hardness of the molding plate is not enough, the internal stress will deform or damage the molding plate during the embossing process.

4. The light output of the laser marking machine is weak

1. If the focal length is not adjusted properly, readjust the focal length.

2. The CW method of the marking software is not selected, the light will be very weak, and the CW method is selected.

3. The cavity, total reflection mirror, half reflection mirror and beam expander are not adjusted properly, and readjust.

4. The laser does not hit the center of the galvanometer, or the lens of the galvanometer is scratched. Readjust the optical path, or replace the galvanometer.

5. The mirrors of all-reflective or semi-reflective mirrors, focusing mirrors, galvanometer mirrors, and Q-switch mirrors are dirty or scratched. Wipe clean or swap.

6. The Q switch is not adjusted properly. The normal condition is to emit light when marking. When not marking, the Q switch should lock the laser. The current of the laser power supply can be adjusted to a larger value, and the frequency doubling film can be placed in front of the half mirror to see if there is any light leakage. If light leaks, the light will be very weak, readjust the Q switch.

5. The laser marking machine cannot emit light

1. The board is damaged, replace the board.

2. The Q switch is broken, replace the Q switch.

3. The Q driver is bad, replace the Q driver.

4. The laser power supply is broken, replace the laser power supply.

5. The optical path is not adjusted properly, re-adjust the optical path.

6. The computer operating system or the computer is blocked, reinstall the system or replace the computer.

7. The signal connection between the board and the driver is open, replace or re-solder it.