Common Fault Analysis of Laser Marking Machine
The laser marking machine when problems arise, if you can not solve the problem will affect the delivery time of the goods, although the laser 303 marking machine maintenance is more troublesome, but its principle is relatively simple, there are many problems can be solved without the need for professional maintenance technicians, five kinds of fault is below laser marking machine is common.
The marking pattern of the high powered laser pointer marking machine is not clear. The solution is to check whether the thickness of the mould plate is uniform, whether the molding pressure is too small, whether the temperature is too low, and whether the machine accuracy is decreased or not. The key points of process control: the thickness error of mould plate should be controlled within 0.O01mm, and the hardness should be kept at 230 - 280N / mm. Because the hologram is made by pressing a certain amount of pressure on the molding roller, interference fringes are formed. If the hardness of the molding plate is not enough, the internal stress will deform or damage the mold plate in the process of coining.
Laser marking machine marking pattern solution: check the dim and dark, the heating temperature is too low, the compression pressure drops. The main points of process control: the setting of molding pressure should consider the molding temperature, the type of holographic material or the softening point of the coating layer and the mould plate. The pressure is too high, easy to damage or molded version of holographic material crushing; low pressure molding, the image is not clear and complete; for rotary way, on both sides of the initial pressure of the pressure roller is about 0.08MPa; start slowly after the pressure roller pressing uniform pressure increase to 030 ~ 0.50MPa. The molding speed can be adjusted according to the quality of the stamp and the machine performance.
The marking pattern of the laser marking machine is white. The solution is to check whether the molding speed is too slow and the molding temperature is too high. The marking film sticking of green laser light marking machine causes the reason that the hot pressing temperature is higher than the degradation temperature, and the increase of the viscosity of the coating will cause the sticky plate to make the film wound on the holographic impression roll. Solution: reduce the hot pressing temperature. The marking pattern of the laser marking machine is clear and blurry, and the reason is that the temperature distribution of the hot press device is uneven or the mould plate is not smooth.
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