Laser engraving machine use precautions and troubleshooting

A laser engraving machine is an advanced device that utilizes a laser to engrave materials that need to be engraved. It is different from mechanical engraving machines and other traditional manual engraving methods, which use mechanical means, such as diamond and other extremely hard materials to engrave other things.

Laser engraving machine can improve the efficiency of engraving, make the surface of the engraved place smooth and rounded, and quickly reduce the temperature of the non-metallic material to be engraved, reduce the deformation and internal stress of the engraved object. According to the different laser light source, laser engraving machine can be divided into CO2 non-metal laser engraving machine and fiber metal engraving machine. In China, CO2 non-metallic laser engraving machines generally use more glass laser tubes, while high-end laser engraving machines use CO2 metal RF tubes. Then, what matters need to be noted when using laser engraving machines?

1. The laser tube installation pivot point should be reasonable, and the pivot point should be 1/4 of the total length of the laser tube. Otherwise, it will cause the laser tube spot pattern to deteriorate, some work for a period of time spot will become a few points, resulting in a decline in laser power can not meet the requirements, the need to constantly replace the tube. Therefore, when using the laser tube to carefully read the "Notes on the use of laser tubes".

2. The cooling system should be grounded and the water tank and water circuit should be cleaned frequently. The temperature control point of the cooling temperature control water tank should be set reasonably, otherwise it will lead to easy breakage and condensation of the laser tube power loss, cold water head off, shorten the life or even unable to work, and need to constantly replace the tube.

3. water protection should be frequently checked and cleaned, the cooling water can not wash away the water protection float switch or water protection float switch does not reset. Can not be used to shorten the method to solve the urgent need.handheld laser marking machine Cooling water quality should be good, the water nozzle aluminum oxide is serious, use a period of time to regularly clean the water pump and water pipes, water protection in the dirt. Otherwise, it will lead to laser tube burst or cold water head off.

4. The suction device should be regularly checked and cleaned to keep the fan duct clean. Otherwise, a lot of smoke and dust can not be discharged, which will seriously and quickly contaminate the lens and laser tube, so that the various mechanical and electronic components are easy to oxidize resulting in poor contact.

5. Focusing mirror and reflector should be checked regularly. After working for a period of time, the frame will heat up, the lens surface discoloration and rust; decoloration and cracking are the objects that need to be replaced. In particular, many customers use large air pumps and air compressors, so that the focusing lens will soon accumulate water, so it is necessary to check the lens on time (laser tube outlet) light path system clean and good quality.

6. The working environment of the machine can not be too harsh. If the ambient temperature is higher than 30 degrees Celsius or lower than 18 degrees Celsius, too much dust or air pollution is serious, the machine will be seriously damaged, the failure rate is rising; humid environment of the electrical accessories are also prone to problems. Therefore, we would like to remind customers to improve the working environment and carry out regular maintenance on the machine.

7. The power of the power grid should be matched. The power distribution and contact points of each part of the whole equipment should be good (fan, water cooler, laser, laser power supply, computer should be independent power supply). 

8. The working current of the laser tube should be reasonable,little pecker laser engraver and it should not be in the working state of 90-100 light intensity for a long time; it is necessary to reasonably apply the laser and save the laser energy; the optical path system should be cleaned and correct, otherwise it will lead to premature aging and rupture of the laser tube. Therefore, when the laser machine is working, the light intensity should be adjusted at about 50-60%, and then the working speed should be adjusted according to the material, so as to ensure the best working condition of the laser tube.

9. The base plate and the processed material should be flat, otherwise it will cause inconsistency in the focal length and some places will not be cut through. This will increase the light intensity, but also accelerate the aging of the laser tube.

10. Laser power supply cooling should be smooth, otherwise once the working current is adjusted to more than 50%, the temperature will rise sharply, increasing the failure rate of the laser power supply. Some machines can remove the side door, so that the heat emitted by the power supply is directly emitted.

When using a laser engraving machine, some problems may occur. What are the most common problems? How can they be solved?

1. Inconsistent engraving depth: This may be caused by loose or faulty control cards, faulty stepper motors, faulty drives or current breakdown inconsistent with software settings, faulty z-axis motor wires, loose spindle motor fixtures, interference from inverters or incorrect data setups, static interference, computer viruses, or system problems. The solution is to check the corresponding parts and repair or replace them.

2. Glitch: It may be caused by control card failure, frequency converter interference, file path error, static electricity interference, software setting problem, drive failure or current subdivision setting error, data line failure, computer virus or system problem. The solution is to check the corresponding parts and repair or replacement.

3. engraving machine wash bottom is not flat: may be the spindle and the table is not perpendicular, need to be corrected; knife with problems; control card problems or signal interference and other reasons. The solution is to carry out the corresponding correction and maintenance.

4. engraving machine can not be normal back to the mechanical origin: may be set back to the origin of the machine in the opposite direction, control card failure or loose, limit switches or data line failure, drive failure, stepping motor line failure and other reasons. The solution is to check the corresponding components and repair or replacement.

5. open the software prompts "open the card failed, please check the card": may be the card's driver is not installed or the card needs to be replaced by a PCI slot; the two data connection cables need to be reinstalled and check whether there is a broken pin phenomenon; the card itself has a problem with the need to be replaced and other reasons. The solution is to check and repair the corresponding parts or replace the card.

6. Open the software prompts three-axis alarm initialization error four: may be the computer and the machine's two data lines are not connected; control box in the adapter board fuse blown need to be replaced and other reasons. The solution is to check and repair the corresponding parts or replace the fuse.