PCB laser engraving machine, also known as PCB laser marking machine, is an essential equipment in electronic products.laserpecker compact laser engraver It is used to print various codes, graphic markings, parameters, 2D codes and other graphic identifiers on circuit boards. Traditional screen printing has many drawbacks, in order to realize the quality control in the PCB production process, with the rapid development of electronic product manufacturing technology, the tracking of characters, barcodes, QR codes and other information etched on the PCB has become the industry's development trend. At the same time, portable electronic products are developing in the direction of miniaturization, high integration and portability. In addition, with the development of packaging technology, the liner and pitch are getting smaller and smaller, making printing alignment more and more difficult. Therefore, PCB laser engraving machine realizes precise marking of circuit boards with its precision and flexibility, overcomes the technical defects of screen printing which is easy to fall off and low processing precision, and will play an important role in PCB industry.
There are two main ways to process logos on PCBs: screen printing and laser marking.
The traditional screen printing process uses a manufactured graphic screen, whereby external pressure causes the character ink to pass through a portion of the screen's grid and leakage prints on the surface of the circuit board.laserpecker 11 The rest of the screen will be clogged and unable to pass ink. Only a blank will form on the surface of the circuit board. The missing ink will form words, symbols, patterns, etc. This processing method is relatively cheap and fast, but there are some disadvantages, such as rough marking effect, easy to fall off the logo, can not mark the small format PCB board, and the chemical raw materials have a certain degree of toxicity.
Laser marking is the use of high energy density laser local irradiation PCB, so that the surface material evaporation or discoloration, leaving a permanent mark. This non-contact process allows very clear 2D codes to be marked in a very small format to ensure high accuracy and quality. At the same time, laser marking does not wear out due to high and low temperatures, acid and alkali changes and external friction, and does not require the help of chemicals, with no negative impact on personnel safety or the environment.
In the application of PCB board laser marking and engraving, UV laser marking and CO2 laser marking are the most commonly used.UV laser marking and CO2 laser marking have become the preferred technology for PCB surface marking due to their low thermal shock and good processing effect.
PCB laser engraving machine has the following characteristics:
1. mainly used for marking and engraving PCB circuit board materials.
2. It can seamlessly connect with SMT assembly line and support online data transmission and information return of MES system.
3. adopts high performance imported CO2 fiber green UV laser, good marking quality, fast processing speed and high production capacity.
4. Adopt high precision CCD to realize automatic positioning, code reading and rating.
5. large processing width span, strong adaptability.
6. Selection of high-quality accessories, reliable quality, abnormal automatic alarm, pause operation.
7. Compatible with online and offline processing methods, built-in flip-flop function to realize double-sided marking.
In short, PCB laser engraving machine plays an important role in the PCB industry with its high precision and flexibility. It can realize the precise marking of circuit boards, overcoming the many defects of traditional screen printing. At the same time, laser marking technology also has the advantages of non-contact processing, high precision and high quality. In the application of PCB board laser marking and engraving, UV laser marking and CO2 laser marking are the most commonly used technologies. pcb laser engraving machine has a variety of features, including seamless connection to the SMT assembly line, high-performance lasers, high-precision CCD positioning, and adaptive processing width. Its application will further enhance the productivity and quality level of PCB industry.
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