How do laser engraving machines work?

How does a laser engraving machine work? As a beginner or operator, before you start using a laser engraving machine, you first need to understand the working principle of the laser engraving machine, and understand the operating steps and precautions of the laser engraving machine.

First of all, our country needs to be carried out to understand the working principle of the laser engraving machine

The principle of laser engraving machine refers to matrix engraving and vector cutting.

1. Lattice engraving

Dot matrix engraving a similar to high-resolution dot matrix printing. The laser head each time we swing left and right engraved a line composed of a series of dots, and then the laser head up and down by moving to learn at the same time is also engraved multiple lines, and ultimately did not form a full page of images or text. Scanned graphics, text and vectorized graphics users can choose to use these dots engraving.

2. Vector Cutting

Vector engraving is different from lattice engraving. Vector cuts the outline of the text. We usually use this way to cut materials such as wood, acrylic, paper, etc., and also to perform marking operations on the surface of various materials.

In addition, we need to understand these three concepts: laser engraving speed, laserpecker pro 2 intensity and spot size.

3. Laser engraving speed

Laser engraving speed refers to the speed at which the laser head moves, usually IPS (inches per second) meaning that high speed leads to high productivity. Speed is also used to control the depth of cut. For a given laser intensity, the slower the speed, the greater the depth of laser cutting or laser engraving. You can adjust the speed using the engraving panel, or you can adjust it using your computer's print driver. The adjustment is 1% in the range of 1% to 100% . The advanced motion control system of the laser engraving machine allows you to realize high speed engraving with ultra-fine engraving quality.

4. laserpecker laser engraver intensity

The intensity of laser engraving is the intensity of the laser light hitting the surface of the material. For a given engraving speed, the greater the intensity, the greater the depth of cut or engraving. Intensity can be adjusted with the engraver's panel or with the computer's operating software. The adjustment is 1% in the range of 1% to 100%. The higher the intensity, the lower the speed and the deeper the depth of cut.

5. Spot size

The laser beam spot size can be adjusted with lenses of different focal lengths. Small spot lenses are used for high resolution engraving. Large spot lenses are used for lower resolution engraving, but are the best choice for vector cutting.

Second, start China laser engraving machine before the inspection

Check whether the power supply is normal, whether the cooling water tank is equipped with deionized water, whether the circulating water pump and the inlet and outlet pipes are normal.

2. Check that the emergency stop button of the laser is not pressed, and that there is no debris on the top and inside of the machine.

3. Check that the lens is clean. If there is dirt, be sure to clean it before use.

Check the mechanical parts and make sure there is no debris on the table.

5. Check whether the electromagnetic air pump staff can be normal.

Third, the specific steps

1. Turn on the power switch of the machine tool and turn on the power switch of the machine control. After the system self-test, the machine tool Axis returns to the reference point.

2. Open the power supply of the control cabinet, turn on the circulating water pump, make sure there is water flowing out of the outlet.

Start the chiller and check the water temperature and pressure (normal water pressure is 5 bar). After the chiller is energized for three minutes, the compressor starts, the fan rotates, and refrigeration begins.

3. Start the enterprise air compressor and cold dryer. Wait for the chiller to drop to the target set a different temperature (set to 21 degrees), turn on the main power of a laser.

4. Insert the laser power key into the keyhole, turn the key clockwise to turn on the laser power, and then wait for the system to return to normal (about 30 seconds).

5. Apply high voltage when the word "High Voltage Ready" appears on the laser panel.

6. Confirm the material type, material thickness and material size before cutting. Lay the material to be engraved flat on the table.

7.Adjust the height of the laser head with a standard ruler, and adjust the edge of the sheet to be parallel to the X-axis and Y-axis of the machine to prevent the cutting head from working outside the range of the sheet.

8. Move the Z-axis to the cutting starting point, simulate the program to be executed, make sure that the enterprise will not lead to the appearance of the soft limit alarm, enter the Chinese editing work mode, adjust the power, speed, punching time data type and thickness according to different material structure.

9. After the above items are normal, you can switch to the execution state and cut the workpiece.

Four. After the work is completed, turn off the machine in the following order:.

1. After processing is completed, the bell rings, the hatch opens and the processed items are removed.

2.Turn off the laser by rotating the key counterclockwise, and turn off the circulating water pump after 1 minute.

3. Clean the processing surface residue in the working machine.

4. Turn off the control cabinet power.

Turn off the cold dryer, turn off the air compressor.

V. Precautions

1. Turn on and off in strict accordance with the order of operation.

2. Prohibit unqualified personnel to operate and maintain the machine tool.

3, in the process of machine tool work,laserpecker 1 prois strictly prohibited to enter the worktable to ensure the safety of man and machine; when the operator encounters a dangerous situation, he must concentrate on the spirit, as soon as possible, press the "emergency stop" button.

4, the adjustment of the machine tool optical path and follow the way of cutting head adjustment must be required to operate the correct time sequence can be carried out to ensure that the system man-machine information security.

Each boot must return to the reference point, check and clean the focusing lens, align the beam nozzle coaxial, open the cutting auxiliary gas, the pressure in the bottle should not be too large. Less than 1 Impa.