What Is Laser Engraving?

The laser engraving machine can improve the efficiency of engraving, make the surface of the engraved place smooth and round, quickly reduce the temperature of the non-metallic material being engraved, reduce the deformation and internal stress of the engraved object; it can be divided into CO2 Metal laser engraving machine and optical fiber metal engraving machine. Co2 non-metal laser engraving machines generally use glass laser tubes in China, and some high-end laser engraving machines use co2 metal radio frequency tubes.

Laser engraving machine , as its name implies, is both

Laser engraving machines can be roughly divided into: non-metal laser engraving machines and metal laser engraving machines.

Non-metal engraving machine can be divided into: CO2 glass tube laser engraving machine and metal radio frequency tube laser engraving machine.

Metal engraving machines can be divided into: metal optical fiber marking machine and metal optical fiber laser engraving machine.

1. The fulcrum of the laser tube installation should be reasonable. The fulcrum should be 1/4 of the total length of the laser tube. Otherwise, the spot mode of the laser tube will be deteriorated. The light spot will become several points for a period of time. Constantly change the tube, and read "Precautions for Using Laser Tubes" carefully.

2. The cooling system should be grounded, and the water tank and water circuit should be cleaned frequently. The temperature control point of the refrigeration temperature control water tank should be reasonable, otherwise the laser tube will be easily damaged and the dew condensation power will be reduced. Keep changing tubes.

3. Water protection should be checked and cleaned frequently. Cooling water often cannot be washed away. The water protection float switch is not reset or the water protection float switch is not reset. The short circuit method cannot be used to solve the urgent problem. The cooling water quality is good, the aluminum oxide in the water nozzle is too serious, and the dirt in the water pump, water pipe and water protection should be cleaned regularly after using for a period of time, otherwise the laser tube bursts or the cold water head falls off.

4. The air suction device should be regularly checked and cleaned, and the fan duct should be cleaned up. Otherwise, a lot of smoke and dust cannot be discharged, which will seriously and quickly pollute the lens and laser tube, making the mechanical and electronic parts easy to oxidize and cause poor contact.

5. Focusing lens and reflector inspection, the lens frame will become hot after work, the lens surface will become discolored and rusty; peeling and cracking are the objects to be replaced, especially many customers use air pumps and air compressors. Water quickly accumulates on the surface, so you must check the cleanliness and quality of the optical system of the lens (laser tube light exit) on time.

6. The working environment of the machine should not be too harsh. If the ambient temperature is higher than 30 degrees and lower than 18 degrees, there will be too much dust and serious air pollution, so that the machine is seriously damaged and the failure rate is constantly rising. It is easy to make electrical parts in humid environments Something went wrong. Therefore, customers are reminded to improve the working environment and maintain the machine frequently.

7. The power grid power needs to be matched. The power distribution and contact points of all parts of the entire equipment should be good (fan, water cooler,

1. When using the automatic focal length, pay attention to the fact that the auto-focusing rod must be fastened, otherwise the work surface will hit the laser.

2. When the laser engraving machine is working, it is forbidden to open the cover.

3. Turn on the smoke exhaust and blowing equipment during processing.

4. When processing wood and paper, you must pay attention to the processing speed to avoid fire.

5. Initially, the user performs red light positioning when performing irregular processing.

6. When processing thin wood boards and volatile materials, adjust the variable width water product by less than 1mm.

7. When cutting, use the workpiece rack more than 2 cm away from the workbench.

8. Cleaning of reflection lens and focal length lens: pinch the reflection lens with two fingers. Hold the lens cleaning paper in your other hand to clean the lens.

9. Generally, when engraving a vector file, the resolution should be higher. When engraving a point file, the resolution should be lower. ^[2]

Dot matrix engraving Dot matrix engraving resembles high-resolution dot matrix printing.

The advantage of laser processing is that various patterns can be quickly carved and hollowed out on the surface of various shoe upper materials. Since laser processing is a non-contact processing method, it will not cause any external deformation of the shoe upper. It has many advantages such as high engraving accuracy, hollow without burrs, and can process any shape.

However, it is also because of the high-density energy characteristics of the laser. Therefore, when laser cutting or laser cutting upper materials, especially light-colored materials (such as white beige), or special materials (such as mirror materials), On the surface or inside, it is easy to burn or yellow.

In order to prevent this phenomenon, during the production and processing, it is necessary to perform certain protection treatment on the surface of the shoe upper. The usual methods are:

First, stick the protective film, it must be flat, close, no bubbles.

2. Wet some shoe uppers. This method is applicable to some materials.

Third, the laser processing parameters are adjusted by adopting the method of multiple times and small firepower.

These three points are adopted in order to prevent the high temperature generated when laser processing cuts or laser hollows the upper, and burns the upper or inner surface of the upper, which is a necessary protection measure. Experience is gained in practice, and users are welcome to subdivide valuable laser processing experience! ^[1]