A brief introduction to the laser engraving machine

The laser engraving machine is a tool-type laser cutting device that is very extensive along the way. The structure of a laser engraving machine mainly includes a laser and a gas jet on its output light path. One end of the gas shower is a window and the other end is a nozzle coaxial with the optical path of the laser. A gas pipe is connected to the side of the gas shower, in particular, the gas pipe is connected with an air or oxygen source, and the pressure of the air or oxygen source For 0.1 to 0.3 MPa, the inner wall of the spout is cylindrical, having a diameter of 1.2 to 3 mm and a length of 1 to 8 mm; the oxygen in the oxygen source accounts for 60% of the total volume, and the laser and gas There is a mirror on the optical path between the showerheads. It can improve the efficiency of engraving, make the surface of the sculptured area smooth and round, and quickly reduce the temperature of the non-metal material being carved, reduce the deformation and internal stress of the sculptured object; it can be widely used in various non-metal materials. The field of fine engraving.

Laser engraving machine work can be divided into the following ways of working.

Dot matrix engraving

Dot matrix carving resembles high-resolution dot matrix printing. The laser head oscillates left and right, each time it sculpts a line made up of a series of points, and then the laser head moves up and down simultaneously to sculpt a plurality of lines, finally forming a full-page image or text. Scanned graphics, text, and vectorized graphics can all use dot matrix engraving.

2. Vector cutting

Unlike dot sculpting, vector cutting is performed on the outer contour of the graphic. This mode is usually used for penetrating cutting on wood, acrylic, paper, and other materials, and marking operations can also be performed on a variety of materials.

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, usually expressed in IPS (inches per second), and high speeds bring high productivity. Velocity is also used to control the depth of cut. For a given laser intensity, the slower the speed, the greater the depth of cut or engraving. You can use the engraving machine panel to adjust the speed, you can also use the computer's print driver to adjust. Within the range of 1% to 100%, the adjustment rate is 1%.

2. Sculpture intensity

The engraving intensity refers to the intensity of the laser light incident on the surface of the material. For a particular engraving speed, the greater the intensity, the greater the depth of cut or engraving. You can use the engraving machine panel to adjust the intensity, you can also use the computer's print driver to adjust. Within the range of 1% to 100%, the adjustment rate is 1%. The greater the intensity, the greater the speed. The deeper the depth of the cut.

Spot size

The laser beam spot size can be adjusted using lenses of different focal lengths. Small spot lenses are used for high-resolution engraving. The large spot lens is used for lower resolution engraving, but it is the best choice for vector cutting. The standard configuration of the new device is a 2.0-inch lens. Its spot size is in the middle, suitable for various occasions.

Can use laser engraving machine for engraving materials, mainly wood products, organic glass, metal plates, glass, stone, crystal, Corian, paper, two-color plate, alumina, leather, resin, spray metal and so on.