A brief introduction to laser engraving machine

2022-10-15
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Brief introduction of laser engraving machine

laser engraving machine is a tool type laser cutting equipment that is widely used along the way. The structure of the laser engraving machine mainly includes the laser and the gas nozzle on its output optical path. Here, one end of the gas nozzle is a window, and the other end is a nozzle coaxial with the laser optical path. The side of the gas nozzle is connected with a gas pipe, especially the gas pipe is connected with an air or oxygen source. The pressure of the air or oxygen source is 0.1 ~ 0.3MPa, and the inner wall of the nozzle is cylindrical, with a diameter of 1.2 ~ 3mm and a length of 1 ~ 8mm; The oxygen in the oxygen source accounts for 60% of its total volume, and a reflector is arranged on the optical path between the laser and the gas nozzle. It can improve the efficiency of carving, make the surface of the carved place smooth and round, quickly reduce the temperature of the carved non-metallic material, and reduce the deformation and internal stress of the carved object; It can be widely used in the field of fine carving of various non-metallic materials

the work of laser engraving machine can be divided into the following working modes

1. Dot matrix engraving

dot matrix engraving is very similar to high-definition dot matrix printing. The laser head swings left and right, carving out a line composed of a series of points each time, and then the laser head moves up and down at the same time to carve out multiple lines, finally forming a full page image or text. Scanned graphics, text and vectorized graphics and texts can be engraved with dot matrix

2. Vector cutting

is different from dot matrix carving. Vector cutting is carried out on the outer contour of graphics and text. This mode is usually used for penetration cutting on wood, acrylic particles, paper and other materials, and it can also be used on the surface of a variety of materials, "he said

The main technical parameters of the laser engraving machine include:

1 Engraving speed

engraving speed refers to the speed at which the laser head moves. It is usually expressed in IPS (inch/second). High 9. In experiments, speed brings high production efficiency. Speed is also used to control the depth of cutting. For a specific laser intensity, the slower the speed, the greater the depth of cutting or engraving. You can use the engraving machine panel to adjust the speed, or you can use the print driver of the computer to adjust. In the range of 1% to 100%, the adjustment range is 1%

2. Engraving intensity

engraving intensity refers to the intensity of the laser hitting the surface of the material. For a specific engraving speed, the greater the intensity, the greater the depth of cutting or engraving. You can use the engraving machine panel to adjust the intensity, or you can use the computer's print driver to adjust. In the range of 1% to 100%, the adjustment range is 1%. The greater the intensity, the greater the speed. The deeper the cutting depth is

3. Spot size

the spot size of the laser beam can be adjusted by using lenses with different focal lengths, except that it is difficult to effectively buy through the recycling channel. The lens with small light spot is used for high-resolution engraving. The lens with large light spot is used for engraving with low resolution, but it is the best choice for vector cutting. The standard configuration of the new equipment is a 2.0-inch lens. Its spot size is in the middle, which is suitable for various occasions

materials that can be engraved by laser engraving machine mainly include wood products, plexiglass, metal 1. Plates, glass, stone, crystal, Corian, paper, two-color plates, alumina, leather, resin, plastic sprayed metal, etc. must be repaired in time

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