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Summary of basic knowledge of laser marking machine

August 02, 2022
Guangzhou Delan Laser Technology Co., Ltd.: professional manufacturing and production of laser Inkjet Printer, carbon dioxide Laser Marking Machine, semiconductor laser marking machine, Fiber Laser Marking Machine, laser Coding Machine, http://
Today we mainly talk about the basic common sense of laser marking machine;


1. Fault common sense;


1. The marking pattern of the laser marking machine is not clear
1.1 Solution: Check whether the thickness of the molded plate is uniform, whether the molding pressure is too small, whether the temperature is too low, and whether the machine accuracy is degraded. 1.2 Process control points: The thickness of the molded plate should be controlled at 0. Within O01mm, the hardness should be kept at 230-280N/mm. Since the hologram is molded by applying a certain pressure to the molding roller, the interference fringe is molded. If the hardness of the molded plate is insufficient, the internal stress may deform or damage the molded plate during the imprinting process.

2. The marking pattern of the laser marking machine is dull and dull
2.1. Solution: Check if the heating temperature is too low and if the molding pressure drops. 2.2. Process control points: The setting of the molding pressure should take into account the molding temperature, the type of holographic material or the condition of the softening point of the coating layer. If the pressure is too high, the molded plate is easily damaged or the holographic material is crushed; if the pressure is too low, the molded image is unclear and incomplete; for the circular pressing method, the initial pressure of the pressure roller on both sides is generally about 0.08 MPa; slow after the molding starts. Slowly increase the pressure of the pressure roller to 0 30 to 0.50 MPa. The molding speed can be adjusted comprehensively according to the quality of the imprinted machine.
3. The marking pattern of the laser marking machine is whitish
3.1. Solution: Check if the molding speed is too slow and the molding temperature is too high.


4. Identification film sticking of laser marking machine
4.1. Cause: The hot pressing temperature is higher than the degradation temperature, and the viscosity of the coating is increased to cause the sticking to cause the film to be wound on the holographic platen roller. 4.2. Solution: Reduce the hot pressing temperature.




Fives. The marking pattern of the laser marking machine is clear and a piece of blur
5.1. Cause: The temperature distribution of the hot press device is uneven or the molded plate is not flat.

Second, the major application of laser in the automotive industry


With the continuous improvement of China's industrialization level, the application of laser in the process of industrialization has played an important role. Among them, laser vision inspection system has been gradually applied in China. Due to the continuous improvement of China's automobile manufacturing level, FAW-Volkswagen Automotive Co., Ltd. At the beginning of each component, the system is used for dimensional control, and the problematic components are discovered, alarmed, and placed back in the repair area. This ensures that each level of the component is assembled from qualified subordinate components. In addition, laser vision inspection systems are widely used in welding production, such as door assembly, front end cutting and welding, and the formation of rear taillight positioning holes in the rear of the body.
In the traditional process, the lamp mounting hole is welded by a plurality of stamping parts, and the accumulated error is large and difficult to control, resulting in poor quality and dimensional instability of the rear tail lamp after installation. The laser vision inspection technology is used, and the punching is performed after the welding of the components is completed. By using the laser on-line measurement, the left and right profiles of the rear taillight are formed into a digital mode, and compared with the digital mode already stored in the controller, The best match size and adjust the robot to complete the punching process. The robot-controlled pickup and the laser on-line detection system are controlled by the bus to form a closed-loop system. The real-time dynamic measurement of the laser on-line inspection system in the assembly process of the door cover, the measured data and the standard in the processor are real-time. The comparison of digital and analog data gives the deviation between the measured value and the theoretical value, and adjusts the installation position of the picker in real time to achieve the optimal value of the design. At this time, the flatness and clearance of the door and the side wall will reach the maximum. Good value.


Third, the application of fiber laser marking in the IC card industry is unacceptable


The fiber laser marking machine uses a computer controlled laser to etch characters, patterns or barcodes on the surface of the card, and has the advantages of more beautiful marking, no consumables, and maintenance-free. Fiber laser marking is mainly used in mobile phone card marking in the telecommunications industry and IC card marking in urban public utilities. Its specific application areas cover public transportation, rental, rail transit (metro), water supply, heating, gas, garden landscape, A wide range of areas such as digital communities, road and bridge tolls, and parking lot management.


Smart card (Smart Card or IC Card), also known as smart card, smart card, integrated circuit card and IC card, refers to a portable card plastic with embedded or embedded integrated circuit chips. It is formed by embedding an integrated circuit chip with a microprocessor and a large-capacity memory on a plastic substrate, and its shape is very similar to that of the ordinary one. Smart cards have emerged with the development of semiconductor technology and the increasing demands of society for information security and storage capacity. Today, smart cards have become a new star in the information society. Common smart cards include telephone IC cards, identity IC cards, and some transportation tickets and memory cards.


China's IC card industry is developing at an alarming rate. Especially in the past two years, China's annual card issuance exceeds 100 million. The application of IC cards covers telecommunications, social security, banking, taxation, public transportation, highway cards, and fuel cards. And many other industries. With the expansion of the scale of IC card applications, the packaging, printing and labeling business of cards has developed into industrial production. With the development of the IC card industry and the improvement of the requirements for card making, the printing method of the card has gradually shifted from ink printing and thermal transfer to laser printing. 1. Fiber laser marking PK other card making technology
Laser marking is replacing traditional card-making technology with more and more applications due to its unmatched advantages such as permanent marking and no consumables. In addition, due to the rapid development of laser technology and the market demand for laser products with high output power, small size and low maintenance, the laser module integrated in the card issuing machine has been pumped from the lamp pumping machine and diode pump. The standard machine gradually developed into a fiber laser marking machine.


The fiber laser marking machine is integrated on a small card issuing machine. For example, a 10W fiber laser marking machine integrated on the PT3080 can mark up to 750 cards per hour. The fiber-optic marking machine integrated in the MPR series of large-scale card issuing machines can mark 4000~6000 cards per hour.

Fiber laser marking can mark a wide range of materials, including PVC, PC, high temperature plastics, Teslin, ABS, PET, PET-G, PET-F and other materials. The application of smart cards has covered many fields of today's social economy. According to the survey of international professional organizations, there are currently billions of smart cards being used internationally, and the application of smart cards in large and medium-sized cities in China is also becoming more and more popular. In some places, the local government even built the city card or citizen card project as a kind of "people's heart project" to build it. It also played a very good effect in real life and played an active role in promoting the overall harmonious society. Promotion. Therefore, with the development of the smart card industry, the application of laser technology will become more and more extensive.


The construction of a harmonious society has played a positive role in promoting. Therefore, with the development of the smart card industry, the application of laser technology will become more and more extensive.



Fourth, laser inkjet printer is used in alcohol anti-counterfeiting and anti-smashing goods industry


In order to prevent counterfeiting and regional sales management in the same industry, manufacturers will use their high-tech anti-counterfeiting means to identify their products. The laser printer logo has been widely used in the wine industry for its unique non-smudged anti-counterfeiting property. It is used in many industries and serves thousands of customers. The working principle of the laser printer is to collect the laser at a very high energy density on the surface of the object being marked, to vaporize the surface material in a very short time, and to accurately control the effective displacement of the laser beam, precisely Burn out delicate patterns or text. The laser markings are clear and permanent and cannot be wiped and altered. At the same time, the non-scratchability of the laser marking also makes it have a certain anti-counterfeiting effect. Many companies have begun to use laser marking to carry out anti-counterfeiting and have achieved good results. True and false identification--thousand commodity identification methods


In addition to anti-counterfeiting and environmental health issues, cross-regional smuggling is also a headache for many wine companies. Since the ink of the ink jet printer is relatively easy to wipe off, some dealers often modify the monopoly area or area code identified by the wine outer box, which not only harms the interests of the dealer but also the interests of the brewing enterprise. . The non-scratchability of laser markings is the best choice for marking area codes.


The problem of counterfeit liquor and the problem of stocking between the regions is a headache for the merchants. It costs money, manpower to purchase consumables and inkjet machines that need special maintenance. However, because the inkjet logo used on the outer box is easily wiped, the goods are sold. The problem is repeated. In response to this situation, Beijing Xingze Laser Technology Co., Ltd. has made a cost-effective identification solution based on the feedback from many consumers, so that the manufacturer has stabilized the market while maintaining the interests of the distributor. Because laser printers have become a necessity in the pharmaceutical and food industries to replace inkjets. The laser jet printer has the characteristics of clean, pollution-free, daily maintenance-free, no consumables, extremely strong marking, easy operation, etc., which can solve the common problems encountered by enterprises in these two industries.




Fifth, look to the future Laser inkjet printer is most favored by the packaging industry


The laser jet printer jets a permanent mark that cannot be wiped off. It is instantly vaporized by the laser directly on the surface of the object. It can be visually distinguished without any aids and is easy for consumers to recognize. And no consumables, maintenance is more convenient. The laser printer has broken through the normative and unitary nature of traditional ink coding technology, creating a new way of spraying, highlighting the characteristics of the product and the differences of the brand, and enhancing the competitiveness of the product in the increasingly fierce market. At the same time, it provides a powerful tool for shortening the product upgrade cycle and flexible production.


With the continuous development of electronic technology, laser and computer technology are organically combined, and users can realize laser ejection output by programming on a computer. It can also eject a clear mark on several materials or on irregular surfaces, with the unique effect of “one dozen double mark” or “riding mark”, which is not easy to imitate. The special function of laser coding is used to effectively prevent the circulation of counterfeit and counterfeit products and cross-regional sales and goods; print the number, barcode, and land information on the product packaging and carton packaging, and connect to the database system. Flow tracking and tracking of distributors' cross-regional sales are beneficial to protect the legitimate interests of manufacturers. The laser can form a very thin beam with a minimum line width of 0.1 mm on the surface of the material, creating a wide space for precision machining and anti-counterfeiting. Not only can you spray complex text, graphics, images, light-transparent buttons, trademark design, barcodes, QR codes, product serial numbers, autographs, etc. Any graphics and text displayed on the screen can be sprayed at the specified time. The surface of the material. Laser coding can also improve the appearance of the product and the brand name effect, and enhance the market competitiveness of the product.


Six, laser marking machine PK inkjet printer who laughs to the end


With the continuous development of science and technology, in the laser marking machine industry, from the early inkjet printer to the current laser marking machine, the users have their own advantages. If the laser marking machine PK inkjet printer who laughs to the end, the answer is that the laser marking machine has become a trend to replace the inkjet printer.


The laser marking machine is marked with a permanent mark that cannot be wiped off. It is instantly vaporized directly on the surface of the object by laser. It can be visually distinguished without any aids and is easy for consumers to recognize. And no consumables, maintenance is more convenient. The laser marking machine breaks through the normative and unitary nature of traditional ink coding technology, creating a brand new coding method, highlighting the product characteristics and brand differences, and enhancing the competition of products in the increasingly fierce market. Capabilities, while providing a powerful tool for shortening product upgrade cycles and flexible production. The laser marking machine can be used to play random code or anti-counterfeiting code. It can also make a separate code for each bottle or every small bottle cap. It can be directly identified, fast and easy, and can also spray price, promotion and other information. Printed on the wine box, it can effectively control the sales price of the wine and prevent market fluctuations.


The ink jet printer is a non-contact inkjet marking system controlled by a single chip microcomputer. It applies a certain pressure to the ink in the system by controlling the internal gear pump or supplying compressed gas from outside the machine to cause the ink to be ejected through a nozzle of several tens of micrometers. And the crystal oscillating signal applied above the nozzle splits the continuous ink line into ink droplets of the same frequency, equal size and a certain spacing. Then, the ink droplets are respectively charged when passing through the charging electrode, and the amount of electricity charged by the central processing unit CPU Controlling; detecting the actual charge and phase of the ink droplets through the detection electrode; finally, the charged ink droplets are deflected in the deflection electric field formed by the deflection electrode, and are ejected from the nozzles, respectively, at different positions on the surface of the product to form the required Various characters, patterns and other logos. Instead of being charged, the ink droplets are driven into the recovery tank and re-entered into the ink circulation system inside the machine. Ink printers can only use dot matrix, limited by the number of print lines (up to four rows of dots), it is difficult to print more complex patterns and multiple letters on a small product surface or The number, even if it can be printed, the effect is difficult to distinguish clearly.


High-quality laser marking machine can also print various unchangeable graphics, texts, numbers and other information on high-speed and clear packaging in various materials (such as wine bottles, bottle caps, etc.); print on products or packaging Special marks (graphics, text, coding), or special features of laser marking, to effectively prevent the flow of counterfeit and counterfeit products and cross-regional sales, dumping goods; print number, barcode, send to land, etc. on product packaging and carton packaging Information, at the same time connected to the database system, can also achieve flow tracking and dealer tracking across the region, which is beneficial to protect the legitimate interests of manufacturers. From the comparison of the two, we can see that the laser marking machine has become a trend to replace the inkjet printer.



Eight, the eight advantages of laser marking machine to conquer you for the use of laser marking machine


Why use a laser marking machine? Can I use other marking machines? This problem is certainly ok, but the laser marking machine is used in a wide range and has considerable advantages in many industries. Laser marking machine technology has been used more and more in the printing field in recent years. Laser marking machines can be applied to a variety of materials including plastics and rubber, metal, silicon wafers. Compared with traditional mechanical engraving, chemical etching, screen printing, and ink printing, laser marking has low cost, high flexibility, and can be controlled by a computer system. The strong permanentness of the mark generated by the laser on the surface of the workpiece is Its outstanding features. At present, in the marking printing industry, laser marking machines have occupied more than 90% of the market. Laser marking machines have such a large share because it has the following eight advantages:
1. Permanent: If the mark does not fade due to environmental concerns (touch, acid and reducing gases, high temperatures, low temperatures, etc.). 2. Anti-counterfeiting: Marks engraved with laser marking technology are not easy to imitate and change, and have a strong anti-counterfeiting degree to a certain extent. 3. Non-contact: Laser marking is processed by non-mechanical "light knife". It can print marks on any regular or irregular surface, and the workpiece will not generate internal stress after marking, ensuring the original precision of the workpiece. No corrosion on the working surface, no "knife" wear, no toxicity, no pollution. 4. Wide applicability: It can process a variety of metal and non-metal materials (aluminum, copper, iron, wood products, etc.) with laser processing. 5. The engraving precision is high; the engraving of the laser marking machine has fine patterns, and the minimum line width can reach 0.04mm. The mark is clear, long lasting and beautiful. Laser marking can meet the need to print large amounts of data on very small plastic parts. For example, two-dimensional bar codes that require more precision and higher definition can be printed, which is more competitive in the market than embossing or jet marking. 6. The running cost is low; the marking speed is fast and the marking is formed once, the energy consumption is small, and the running cost is low. Although laser marking machines have a larger investment in equipment than conventional marking equipment, the use of laser marking machines is much lower in terms of operating costs. For example: 1 plastic sealing triode marking: marking machine working speed is 10 / sec, if the equipment depreciation is calculated in 5 years, the marking cost is 0.00048 yuan / month. If you use a pad printer, its combined operating cost is about 0.002 yuan / piece, or even higher. 2 bearing surface marking: If the bearing is divided into three equal parts, a total of 18 4th words, using galvanometer marking machine, the service life of the xenon lamp is 700 hours, the overall cost of marking each bearing It is 0.00915 yuan. The cost of electrocorrosion lettering is about 0.015 yuan/piece. Calculated with an annual output of 4 million sets of bearings, only one item can be marked, and the cost can be reduced by at least 6.5 yuan in one year. 7. High processing efficiency; the laser beam under computer control can move at high speed (speed up to 5 ~ 7 m / s), marking process can be completed in a few seconds. 8. The development speed is fast; due to the combination of laser technology and computer technology, the user can realize the laser print output by programming on the computer, and can change the print design at any time.







Nine, laser marking machine use precautions, how much do you know


Guangzhou Delan Laser Technology Co., Ltd. warmly reminds everyone: What do you know about the use of laser marking machine? Do you have a deep understanding of daily work and maintenance? Have you used a laser marking machine? Do you know the principle of the laser marking machine? Waiting for these 100,000 reasons, the following is a small summary of Delan Laser Technology, I hope to help you understand the laser marking machine.

1. Precautions and daily maintenance:
1) When the light pen is working, it cannot touch or collide with the movable beam of the scanning table; 2) The laser and optical lens are fragile, should be handled with care and avoid vibration; 3) When the machine fails, stop working immediately. Professional staff to deal with; 4) It is strictly forbidden to start the laser power supply under the condition of abnormal water or water circulation; 5) Pay attention to the order of the switch machine, and the current must be adjusted to about 5A when shutting down; 6) Note that the marking machine should not exceed the working surface; 7) Pay attention to keep the indoor and machine surfaces clean and tidy; 8) Pay attention to keep the inner circulating water clean, clean the water tank regularly and replace it with deionized water or pure water;

2. Environmental requirements:
1) Temperature: 5 to 40? 2) Relative humidity: 30~80% (no condensation); 3) Ventilation equipment, no strong vibration, no heating around; 4) Clean and dust free.

3. Machine maintenance:
1) The cooling water must be pure, non-sticky, often replaced, preferably using distilled water; 2) keep the workbench and work surface clean; 3) keep the scanning table rail clean, regularly use a soft brush to remove dust; 4) when scanning the workbench When the sliding rod runs unevenly, apply some lubricating oil on the axle; 5) The mirror and the transmitting mirror should be wiped regularly with cotton fiber and alcohol; 6) The cover of the power supply part should be locked to prevent metal objects from falling off. Into the circuit and damage.

This machine is a laser high-tech product. The scanning workbench used is a precision instrument. Pay attention to keeping the working environment sanitary. Before starting the laser, check whether the water cooling system is normal to ensure the safety of the laser. After the laser is started, do not approach the optical path. . If the circuit fails or a laser power failure occurs, ask a professional to repair it. If it is found that the laser attenuation cannot be used, the xenon lamp needs to be replaced; the YAG xenon lamp is generally available for three months, and it is found that the aging or the explosion is replaced by a professional.


4. Troubleshooting common faults


1. The scanning workbench does not move, and it is checked sequentially:
1) The power supply is connected; 2) The transmission line is connected.

2. The xenon lamp can trigger but not output laser, and check:
1) Whether the power supply is connected properly; 2) Whether the power switch is pressed; 3) Whether the current is adjusted too small; 4) Whether the resonant cavity should be adjusted; 5) Whether the optical path system is damaged.

3. There is a laser output, but even if the current is adjusted to a large value, it is still very shallow, check:
6) Adjust the focal length is accurate; 7) Whether the pump works normally; 8) Whether the water pump outlet and the inlet pipe are leaking; 9) Whether the optical path system is offset; 10) Whether the surface of the mirror or the transmission mirror is dirty.


4. The xenon lamp cannot be triggered, check:
1) Whether the xenon lamp electrode is reversed; 2) Whether the xenon lamp electrode is black, try replacing the new lamp; 3) Whether the laser power supply is normal.


5. The laser scribe line is not straight, check:
1) Whether the optical pen head screw is loose; 2) Whether the guide rail belt is tight or not.


The above part is summarized and arranged by Guangzhou Delan Laser Technology Co., Ltd. If you have any questions about laser marking, please contact Delan Laser, we will provide superior service.



Guangzhou Delan Laser Technology Co., Ltd.: professional manufacturing and production of laser inkjet printer, carbon dioxide laser marking machine, semiconductor laser marking machine, fiber laser marking machine, laser coding machine, contact Zhao Sheng, 020-66230280 UV Laser Marking Machine, Shantou laser marking machine, Guangzhou laser marking machine, Guangzhou CO2 Laser Marking Machine, Guangdong semiconductor laser, sand laser marking machine, metal cutting machine, non-metal cutting machine, more laser industry information, please pay attention to Guangzhou de Lan laser - laser industry experts around you Source: http://Reprint please indicate the source, thank you
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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