The Scan Head type marking head mainly by the XY scanning mirror, the field mirror, the vibration mirror and the computer control marking software and so on compose. The corresponding optical components are selected according to the different wavelength of laser. The related options also include laser beam-expanding mirrors, lasers, etc. It works by injecting the laser beam into the two mirrors (the scanning mirror), using computer to control the reflection angle of the reflector, the two mirrors can be scanned along the X and Y axes respectively, so that the laser beam is deflected so that the laser focusing point with certain power density is moving according to the requirement of the marking material.
Thus leaving a permanent mark on the surface of the material, the focused spot can be round or rectangular. In the mirror scanning system, vector graphics and text can be used, this method uses the computer graphics software to the graphics processing mode, has the drawing efficiency, the graphic accuracy is good, does not have the distortion and so on the characteristic, greatly enhances the laser marking quality and the speed. At the same time, vibration mirror marking can also use the dot matrix marking method, the use of this method for online marking is very applicable, according to the different speed of the production line can be a scanning vibration mirror or two scanning vibration mirror, compared with the array marking above, you can mark more lattice information, for the marking of Chinese characters have a greater advantage. Because of the wide range of applications, the scanning-type marking of vibration mirrors vector marking and dot-matrix marking, marking range can be adjusted, and has a fast response speed, marking speed (hundreds of characters per second), marking high quality, light road sealing performance, strong environmental adaptability and other advantages have become mainstream products, It is considered to represent the development direction of laser marking in the future and has broad application prospect.
