What are the main points of laser engraving machine failure?

Laser engraving machine has the advantages of high engraving accuracy, fast engraving speed, low thermal effect, no pollution, no noise, etc. It has been widely used in automotive, shipbuilding, aerospace, electronics and other industries. The quality of laser engraving is closely related to the relative position of the laser focus and the workpiece. Ensuring the relative position of the laser focus and the engraving object is one of the important guarantees for the laser engraving machine quality of the wheel hub. But there may be some failures, let us check about the solution of the failure.

The following knowledge points are listed below:

The laser engraving machine does not emit light

Engraving different depths or even no depth

Engraved font deformation

Reset abnormal

Laser engraving missing

Sweep hook misplaced

Computer does not output

Parameters invalid

Edge scans engraving misaligned

1. The laser engraving machine does not emit light

Press the control panel test button to check the ammeter status:

No current: Check whether the laser power of the laser engraving machine is on, whether the high-voltage line is loose, and whether the signal line is loose.

There is current: check whether the lens of the laser engraving machine is damaged and whether the optical path is severely shifted.

Check whether the water circulation system of the laser engraving machine is normal:

 No water: Check the pump for damage or no power.

Water: Check whether the water inlet or outlet is inverted or the water pipe is broken.

Can self-test, sending data is not bright: check if the computer settings are correct.

Check whether the cover and front door of the magnetic switch are loose, and whether the wire ends are coming off.

2. Engraving different depths or even no depth

(1) Check whether the water circulation system of the laser engraving machine is unblocked. (Water pipe is bent or broken)

(2) Check whether the focal length is normal. (Adjust)

(3) Check whether the optical path is normal. (Adjustment)

(4) Check if the material on the paper is too thick and if there is too much water. (Adjust)

(5) Check that the beams are parallel. (Both sides of the adjustment belt)

(6) Check if the lens is damaged. (Change)

(7)  Check the lens or laser tube of the laser engraving machine for contamination. (Re-clean required)

(8) Check if the water temperature is higher than 30 ° C. (Replace circulating water)

(9) Check if the laser head or focusing lens is loose. (Dating)

(10)  The laser current intensity reaches 8mA.

(11) Laser tube aging.

3. Engraved font deformation

If the laser head pulley of the laser engraving machine is severely worn, causing the laser head to become loose, replace the pulley. If the tension on the left and right y-axis belts are different. Adjust the screws behind the y-axis to the same tension. If the driven wheel of the laser engraving machine on the left side of the x-axis is worn, replace the driven wheel. If the x-axis motor is faulty, replace the motor. If the x-axis motor and pulley fastening screws are loose, tighten the screws

4. Reset abnormal

Check the sensor for dust, poor contact, or damage. (Wipe the dust or replace the sensor) Check the flexible data cable for poor contact or damage. (Trim the data cable, remove or replace the data cable) Check whether the ground cable is in reliable contact or whether the high-voltage line is damaged. (Reconnect or replace the high-voltage line) Poor contact of the motor wire

5. Laser engraving missing

The initialization of the laser engraving machine is incorrect. (Modify the data again) The operation sequence is reversed. (Re-output) or Electrostatic interference

6. Sweep hook misplaced

(1) The edited file is correct. (Revised)

(2) Whether the selected target exceeds the layout. (Reselect)

(3) Check whether the software parameter settings of the laser engraving machine are correct. (Reset)

(4) There is a problem with the computer system. (Reinstall the operating system and software)

(5) Check if the elastic band is the same before and after or the back end of the elastic band is too loose. (Tighten the belt)

(6) Check if the belt or timing wheel is slipping or jumping. (Enlarge the timing wheel or belt)

(7) Check whether the beam is parallel

7. Computer does not output

Reset the computer and test.

So, after check about the main failures of the laser marking machines, do you know how to operate one? Wanna know more about Automatic Laser Cutting Machine, CNC Wood Working Machine? click here.