Analysis on the structure and application advantages of laser marking machine

Laser marking technology is one of the largest application areas of laser processing. Laser marking is a marking method that uses high-energy-density lasers to locally irradiate the workpiece to vaporize or change the color of the surface material, thereby leaving a permanent mark. Laser marking can produce a variety of characters, symbols and patterns, etc., and the size of the characters can range from millimeters to micrometers, which has special significance for the anti-counterfeiting of products.

Laser marking machine composition: mainly composed of four systems: optical system, circuit system, water system and control system. The optical path system is mainly composed of red light, total reflection, half reflection, module, Q, field lens, beam expander, scanning, etc. The circuit system is mainly composed of control circuit (control box), laser power supply, Q power supply, and scanning power supply. The control system is mainly composed of scanning galvanometer, computer, control software (board card) and so on. The waterway system is mainly composed of water tanks and water pipes, forming a circulating waterway.

Advantages of laser marking machine: good laser beam pattern, high electro-optical conversion efficiency, low power consumption, and maintenance-free; some photoelectric measurement manufacturers change the laser light source in the measurement equipment from the original He-Ne laser to a diode laser to obtain The best machine life (He-Ne laser life is generally 10^4HR, while diode laser life is 10^5HR, which is ten times the difference), which is especially suitable for long-term operation on site; it can be used as a switch in an instant, suitable for communication purposes .

And the laser marking machine stabilizes quickly when it is turned on, and it is very suitable to modulate its output with a circuit. For example, the pulse wave modulation method can be used to measure the distance (and the He-Ne laser marking machine must be turned on for 30 minutes before it stabilizes. , This point is inferior to laser marking machines); the use of the III/V group in the periodic table, such as gallium arsenide and other compounds can be made into diode lasers. When the current passes through the pn interface, it will be different due to the compound It emits various visible lasers and invisible lasers.

As long as the ratio of the combined elements is changed, the laser can change different energy intervals, different energy intervals, and provide different output wavelengths. Because of the infrared and red wavelengths, it is easy to cooperate with various sensors in communication and measurement. Very wide range of uses; simple and convenient operation, high precision marking quality; mechanical properties: compact structure, sturdiness, and small size.

YAG laser marking machine

YAG laser marking machine series models have the highest cost-effective high-end product-laser marking machine. In recent years, with the reduction of manufacturing costs, laser marking machines have been replaced by laser processing users and have become the first choice for laser processing users. The use of laser marking machines can greatly save power and consumables in later maintenance, and get better The laser marking effect can improve equipment reliability and greatly reduce maintenance.

YAG laser marking machine advantages:

1. Light saving: The life of the diode is up to 10,000 hours, and it can be up to three years without replacing consumables.

2. Power saving: The power consumption of the laser marking machine is only about 2KW, and the power consumption is low.

3. Better marking effect: The laser produced by the pump has better monochromaticity, better laser mode, smaller spot after laser focusing, more concentrated energy, and better marking effect.

4. Maintenance-free: The laser marking machine is almost maintenance-free, which greatly increases the stability and reliability of the equipment and reduces the workload of daily maintenance.