Mastering the Operation of Ultraviolet Laser Marking Machines--网站标题(英文)

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Mar 18,2025

Mastering the Operation of Ultraviolet Laser Marking Machines

In the landscape of modern manufacturing, the ultraviolet laser marking machine has emerged as an indispensable tool in product marking and anti - counterfeiting traceability processes. Its high - precision, non - contact processing capabilities, and excellent adaptability to various materials make it stand out. Proper operation of this equipment not only ensures high - quality marking but also extends its service life. Here is a detailed guide on its usage steps and key points.

Equipment Setup

Installation: Place the ultraviolet laser marking equipment on a stable, dry workbench, away from strong electromagnetic interference sources. Ensure there is sufficient space around the device to facilitate operator debugging and maintenance. A well - positioned machine can operate more stably and reduce potential errors during the marking process.

Power Connection: According to the equipment manual, correctly connect the power cable of the marking machine and ensure proper grounding. Good grounding is crucial for the stable operation of the equipment and the safety of the operator. Any negligence in power connection may lead to equipment malfunctions or even pose a safety hazard.

Optical Path Calibration: After the first use or when the equipment has been moved, optical path calibration is necessary. Professional technicians need to use special calibration tools to delicately adjust the output path of the laser. This ensures that the laser can accurately focus on the marking position, resulting in clear and precise marking effects. Precise optical path calibration is the foundation for achieving high - quality marking.

Parameter Settings

Wavelength Selection: Ultraviolet laser marking machines typically emit laser light of a specific wavelength. Different materials have different absorption characteristics for various wavelengths. Before marking, it is essential to select the appropriate wavelength according to the type of material to be processed. For example, for plastic materials, a 355nm ultraviolet laser often produces clear and durable marks. Choosing the right wavelength can significantly improve the marking quality and efficiency.

Power Adjustment: The laser power directly affects the marking depth and speed. If the power is too high, it may cause excessive ablation or damage to the material; if the power is too low, the marking effect may not be obvious. Operators need to adjust the power parameters on the equipment operation interface based on the thickness, hardness of the material, and marking requirements. In general, for thinner and easily processed materials, the power can be appropriately reduced; for thicker or harder materials, the power needs to be increased.

Frequency Setting: The laser frequency determines the number of pulses emitted per unit time, which is related to the marking speed and line quality. A higher frequency is suitable for fast marking scenarios with high requirements for line fineness, while a lower frequency helps to achieve a deeper marking depth. In actual operation, the optimal frequency needs to be determined through experiments to balance marking speed and quality.

Marking Speed Setting: The marking speed should be coordinated with parameters such as power and frequency. Excessively fast marking speed may make the mark blurred, while too slow a speed will affect production efficiency. Based on material characteristics and expected marking effects, reasonably set the marking speed in the equipment software, usually adjusted in units of mm/s.

Operation Process

Create Marking File: Use professional marking software such as CorelDRAW or AutoCAD, combined with the device - supporting plugins, to design the required marking patterns, text, or barcodes. During the design process, pay attention to factors such as graphic resolution, line thickness, and font selection to ensure that the final marking effect meets the requirements. After completion, save the file in a format supported by the equipment, such as PLT or DXF.

Import File and Position: Import the created marking file into the control system of the ultraviolet laser marking equipment. Through the device's operation panel or software interface, adjust the marking position to ensure that the mark is accurately located in the target area of the product. Some devices support real - time preview functions, allowing operators to view the marking effect before formal marking and make timely adjustments to the position and parameters.

Start Marking: After confirming that all parameter settings are correct and the marking position is accurate, press the start button of the device to begin the marking operation. During the marking process, operators need to closely observe the marking effect. If any abnormalities are found in the mark, immediately pause the device and check the parameter settings or equipment operating status.

Quality Inspection and Adjustment: After marking, conduct a quality inspection on the product, checking the clarity, depth, integrity of the mark, and whether there are any deviations. If the marking effect is not satisfactory, adjust the relevant parameters according to the specific situation, such as power, speed, frequency, etc., and then conduct another marking test until a satisfactory result is achieved.

Equipment Maintenance

Clean Optical Components: Regularly use special optical cleaning tools, such as dust - free cloths and alcohol, to clean the focusing lenses, mirrors, and other optical components of the laser marking equipment. This prevents dust, oil, and other impurities from affecting laser transmission and marking effects. When cleaning, be careful to operate gently to avoid scratching the optical surface.

Check Cooling System: Ultraviolet laser marking machines are usually equipped with a cooling system to ensure that the laser generator operates at a normal temperature. Regularly check the water level and quality of the cooling water tank, and add or replace the coolant in a timely manner. At the same time, check whether there are any leaks or blockages in the cooling pipes to ensure the normal operation of the cooling system. A well - maintained cooling system is crucial for the stable operation of the laser generator.

Maintain Mechanical Components: Regularly lubricate the mechanical transmission components of the equipment, such as guide rails and screw rods, to reduce wear and ensure smooth movement of the equipment. Check whether the connections of various components are loose and tighten them in a timely manner to prevent mechanical failures from affecting marking accuracy.

Proper use and maintenance of ultraviolet laser marking equipment are the keys to achieving efficient and high - quality marking operations. Operators need to be familiar with the functions and parameters of the equipment, strictly follow the operation process, and do a good job in daily maintenance to fully utilize the performance of the equipment and extend its service life.