Laser engraving machine failures and solutions

In the process of using the laser engraving machine, it is inevitable that some failures will occur. In order not to affect the production and processing efficiency, we can understand the common failures and their solutions.

Problem one: the laser does not emit light

Solution:

1. Press the test button on the control panel to check the status of the ammeter:.

A. No current: check whether the laser power supply is on, whether the high-voltage line is loose or open circuit, whether the signal line is loose;

B. With current: check whether the lens enterprise is broken, whether the optical path has a serious offset.

2.Check the water circulation.

A. no water: check whether the water pump is damaged;

B.Water: check whether the water inlet and outlet are connected with reverse or whether the water pipe is broken.

3,self-test, send bad data: check whether the computer settings are correct;

4, check to carry out the magnetic switch cover, the front door and wiring method whether there is loose or off.

Problem 2: Engraving with different or no depth

Solution:1. Increase the laser power or reduce the focal length as follows.

a. Check and clean the light outlet of the laser tube; check and clean the lens. If the lens is damaged, it should be replaced in time.

b. Check whether the optical path is correct and whether the laser beam is transmitted as follows.

Is the laser technology partially can be blocked? When the laser passes through the hole-shaped object, is it able to pass through a center? If the enterprise does not pass through the center, it is easy to lead to cause diffraction effects and reduce the laser power and quality.

At this time you need to increase the working current, but not more than the maximum working current of the laser tube, otherwise the laser power is reduced, 1.2 m tube: 20mA, 1.6 m tube: 22ma;.

C. The laser tube may be aging and need to be replaced with a new one;

Use a high power laser tube.

Solution: 2. Reduce focus size.

A. Check the quality of the spot carried out by the laser light incident on one of the focusing lenses. The image quality of the laser spot incident on the target focusing lens is getting better and better, and the focus spot size after focusing has less influence;

B.Checking whether the laser perforation is normal.

C. Check whether the degree of the laser tube corresponds to the distance between the support points, and adjust the support points if necessary;

D.Check whether the laser beam incident on the focusing lens is always perpendicular to the center;

3, check whether the water circulation system is smooth; check whether the water temperature is higher than 30 ℃, if it is higher than 30 ℃, you need to replace the circulating water;

4, check whether multiple laser heads or focusing lenses are loose.

Problem 3:Auto reset while working, stop engraving, leakage of engraving, messy coating in the middle.

Solution:

1. Check the grounding of the machine, measure whether the grounding wire meets the standard (grounding resistance should not be greater than 5 ohms), and whether the wires to be transformed meet the relevant standards;

2.Check whether the connecting wires are loose or the control panel buttons have poor contact;.

3. Whether there is strong electromagnetic interference at the location of the machine;

4. Check whether there is any error in the graphic design of the original data, such as graphics for cross, not closed, missing strokes, etc. Correct the errors in the graphics, and then test through the output system;

5. If the other graphics output without problems, the graphics have problems, the need to re-export or re-create the graphics;.

6. check the laser tube or laser power supply for sparks or disconnect the laser power supply for testing;

Seven. Problem still exists, motherboard replacement, computer test. Focus: wiring, control board, wiring, interference, graphics problems, high voltage ignition, laser power supply, control board card

Problem 4: engraving deformation

Solution teaching method:

 1. If the laser head pulley to carry out wear and tear problem is serious, resulting in the laser head loose, please replace a pulley;

2, if we left and right to carry out both sides of the Y-axis belt tension as well as different. Adjust the screws at the back of the Y-axis to an identical tension;

3.If the drive pulley on the left side of the x-axis is worn out, replace the drive pulley;.

4. if the x-axis motor is faulty, replace the motor;

5. if the fastening screws for the x-axis motor and pulley are loose, tighten the screws.

Problem 5:The light spot does not converge and the mirror barrel is hot.

Solution teaching method: 

1. Make sure the water temperature in the China laser through the tube is below 30 degrees;

2.Adjust the optical path to ensure that the optical path is correct, focusing on the depth of processing to be considered;.

3. require customers to regularly clean the lens to ensure that the lens is not contaminated; reasonable choice of focusing lens to ensure a good beam;

4. Observe whether the position of the laser tube holder is reasonable, adjust the position of the holder;.

5. Replace the laser tube. (Focus: water temperature, lens, laser tube position, optical path, laser tube).

Problem six: reset abnormal

Solution teaching method: 

1. Check through the sensor technology whether there is dust, poor contact society or damage. If so, promptly wipe off the dust or replace a sensor;

2. check whether the soft data cable has poor contact or damage. If damaged, trim the cable to remove or replace the cable;.

3. Check for safety and reliability between the working ground wires or if there is damage to the high voltage wires, re-ground the wires or replace the high voltage wires;

4.Check for poor motor wire contact.

Problem 7:Clean the back of the hook, do not close.

(Solve the teaching method:

 1. Whether the edited file can be correct, if there is an error to re-edit);

2. whether the selected target is beyond the layout, if beyond the layout, need to re-select;.

3. Check whether the software parameter settings are correct;

4Check whether the computer system is defective or malfunctioning, direct reinstallation of the operating system and software;.

5. Check whether the elastic belt is consistent before and after, check whether the back end of the elastic belt is too loose. If it is too loose, the belt needs to be tightened;

6. Check whether the belt or synchronous wheel slips or jumps teeth. If it does not appear for this development, please strengthen the enterprise synchronous wheel or synchronous belt;

7, check whether the beam is parallel, if not, adjust the belt on both sides.

Question 8:Computer-related faults

1. The computer can not output

Check whether the software parameter settings are normal, if not normal need to restart ;

2. Laser engraving machine first positioning, and then start output;

3. In advance to check whether the work machine learning is not reset; if not reset please correct;

4.Check whether the output serial port is consistent with the software serial port settings, if not, re-edit;.

5. check whether the grounding is reliable, static electricity will interfere with the data line, if laserpecker pro 2 is not reliable, need to be grounded again;

6. replace the serial port output test.

7. Reinstall the software and reset the test.

8. Format the computer system disk, reinstall a software system for analysis and testing.

The motherboard serial port is damaged and needs to be repaired or replaced.

2. Software can not calculate the path

a. Check to set the path of the calculation method is correct;

b. Check whether the graphic file format is correct, and then correct it again if it is not correct;

C. Uninstall the software, reinstall and set up.

3. When the font gradually decreases, re-install the technical operation management system;

Four. When the laser path can not be calculated, due to the amount of data is too large, please wait a moment or increase the computer memory.

Problem 9:Continuous lighting, intermittent lighting, unstable or uncontrolled current.

Solution: 

1. In the parameter setting, check whether the laser type is correct or not is the main reason for the failure of continuous illumination

2. Pull the signal wire between the laser power supply and the control panel to see if there is any loose or unreliable connection;

3. Pull out the signal cable on the power supply, press the laser system power button to analyze whether the power supply for failure problems or China's motherboard failure;

4.The explosion sound is normal, indicating that the power supply is not faulty, the explosion sound is not normal, indicating that the power supply has a problem;

5. when the power supply is normal, connect the signal line, use a multimeter to measure the switch control pins on the terminal. When there is no light source, if the normal voltage is higher than 4 volts and lower than 3 volts, the board output is abnormal; laserpecker 1 pro pin voltage should be less than 2 volts, higher than 2.5 volts output is abnormal.

6. Check if the water circulation is normal, if the flow is sometimes not working, and if there is any problem with the water protection. Focus: parameters, signal lines, laser power supply, control board, waterproof.

Problem 10: Laser engraving machine "advanced settings" in the parameter settings are invalid.

Solution:

1. The correct choice of advanced technical parameters to use the steps are: first remove the Laser_cn and sysCfg "read-only" attribute, and then you can configure the parameters according to the specific actual situation of the national machine.

2. After configuring the parameters,laserpecker laser engraver add the "Read-only" attribute of Laser and sysCfg. Do not modify the parameters of this option.

Laser engraving machine faults Laser engraving machine solutions

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