Laser marking machine common problems and solutions

Laser marking machine is to use laser beam to make permanent marks on the surface of various materials. The effect of marking is to expose the deep material through the evaporation of the surface material, and burn some of the material through the light energy, showing the pattern and text to be etched.

There will be some problems after the laser marking machine is used for a period of time, for example, the working power of the laser marking machine decreases. How to solve these problems? The following introduces common laser marking machine fault solutions.

 1. After the laser marking machine is used for a period of time, the reason why the laser output power of the laser decreases:

① Whether the laser resonator changes: Fine-tune the resonator lens to make the output spot the best;

② Whether the output diaphragm;

③ The acousto-optic crystal is offset or the output energy of the acousto-optic power supply is low: adjust the position of the acousto-optic crystal;

④ Whether the temperature difference between the water temperature setting of the cooling water tank and the ambient temperature exceeds 5°C;

⑤ Whether the service life of the krypton lamp has expired;

⑥ The laser entering the galvanometer is off-center: adjust the laser;

2. The laser output power of the laser marking machine is normal, but the laser beam cannot play the role of marking:

① Whether the adjustment of the optical path system is accurate;

② Whether the sound and light switch can play a switching role;

③ The D/A card controls whether the sound and light output signal reaches 5V.

3. Part of the logo pattern is not clear

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.

4. The logo pattern is dim

Solution: Check whether the heating temperature is too low and whether the molding pressure drops.

5. The machine is not running (no cooling or water pump is not working)

The computer control system is the control and command center of the entire laser marking machine, and it is also the carrier of software installation. Check whether the power cord is connected to the power plug; check whether the power switch is turned on; check whether the decorative panel power is turned on.

6. No cooling or insufficient cooling

Check whether the voltage is too low or too high; check whether there is blockage in the ventilation; check the ambient temperature (too high ambient temperature will cause the refrigeration compressor to stop for a short time); check whether there is too much heat transferred to the antifreeze coolant, because this will exceed the cooling capacity of the refrigeration system.

Laser marking machine breaks through the standardization and unification of traditional ink coding technology, creates a new marking method, highlights product characteristics and brand differences, and enhances the competitiveness of products in the increasingly fierce market competition. At the same time, it provides a powerful tool for shortening the product upgrade cycle and flexible production. Laser marking is a permanent marking that cannot be erased. It is directly vaporized on the surface of the object by laser. It can be distinguished with the naked eye without any auxiliary tools, which is convenient for consumers to identify.