With the control of the single-chip microcomputer, this controller can typeset while the engraving machine works, but can not turn off the computer, which is actually equivalent to saving 7 computers, and reducing the waste caused by the computer's misoperation. Causes With the rapid development of optoelectronic technology, the application range of laser engraving technology is more and more extensive, and the engraving precision requirements are getting higher and higher. The four most fundamental elements that affect laser engraving are: engraving speed, laser power, engraving accuracy, and materials. In order to achieve a certain engraving effect on a specific material, it is required to absorb a certain amount of laser energy, which should be regarded as the laser energy absorbed by the material = laser power / engraving speed. Simply speaking, to increase the laser energy absorbed by the material, the laser power should be increased or the engraving speed should be reduced. As for the final method, it is necessary to look at the material and the final engraving effect. In general, users will avoid high and low speeds, because that will reduce production efficiency. In fact, not only the engraving speed, but also the engraving precision, has a great influence on the engraving efficiency. With the development of food culture, from simple cooking tools, gradually evolved into both use and artistic value of household articles.The classification and function of Kitchen Knives are more and more detailed, from the era of a Kitchen Knife fighting the world, developed into today's special combination of knives.We can provide customers all over the world with the best quality knives block set,also we can customize different knives block set according to the living habits of different countries. Kitchen Knife Block,Pp Handle Knife Block,Kitchen 6Pcs Knife Block Set,6Pcs Knife Block Set HONG TAO KITCHEN INDUSTRY CO.,LTD , https://www.htkitchenware.com
Introduction Laser engraving is based on CNC technology, which is the processing medium. The physical degeneration of the processed material under the laser irradiation and the vaporization instantaneously achieves the purpose of processing. Laser processing features: no contact with the surface of the material, not affected by mechanical motion, the surface will not be deformed, generally do not need to be fixed. It is not affected by the elasticity and flexibility of the material, and is convenient for soft materials. The processing precision is high, the speed is fast, and the application field is wide.
Laser engraving is divided into laser cutting, laser engraving, laser marking, glass (crystal) engraving and other common methods.
Laser engraving process is realized by laser engraving machine, laser marking machine, laser cutting machine and other equipment.
Laser engraving is widely used in advertising processing, gift processing, packaging engraving, leather processing, fabric proofing, seal engraving, product marking, seal engraving and many other industries.
Common materials for laser engraving: 1, non-metallic material processing (co2 laser): plexiglass, wood, leather, cloth, plastic, printing rubber plate, two-color plate, glass, synthetic crystal, horn, cardboard, MDF, marble, jade 2. Metal materials processing (YAG laser) common metal materials.
The principle of engraving uses laser engraving and cutting. The process is very simple, just like printing on paper using a computer and printer. You can use a variety of graphics processing software, such as CorelDraw, in Win98/Win2000/WinXP environment. Scanned graphics, vectorized graphics and various CAD files can be easily "printed" into the engraving machine. The only difference is that the printing applies toner to the paper, while laser engraving shoots the laser onto almost all materials such as wood, acrylic, plastic, metal, and stone.
Dot matrix engraving dot matrix engraving resembles high definition dot matrix printing. The laser head oscillates left and right, each time engraving a line consisting of a series of points, and then the laser head simultaneously moves up and down to engrave a plurality of lines, and finally constitutes a full-page image or text. The scanned graphics, text and vectorized graphics can all be carved using dot matrix.
Vector cutting is different from dot matrix engraving, and vector cutting is performed on the outer contour of the graphic. We usually use this mode to cut through wood, acrylic, paper and other materials, as well as marking on a variety of materials.
Engraving speed Engraving speed refers to the speed at which the laser head moves, usually expressed in IPS (inches per second), which results in high productivity. Speed ​​is also used to control the depth of the cut. For a particular laser intensity, the slower the speed, the greater the depth of the cut or engraving. You can adjust the speed with the engraver panel or with your computer's print driver. In the range of 1% to 100%, the adjustment range is 1%. The advanced motion control system of the Hummer makes you get super-fine engraving quality when you are carving at high speed.
Engraving intensity Engraving intensity refers to the intensity of the laser that strikes the surface of the material. For a particular engraving speed, the greater the intensity, the greater the depth of the cut or engraving. You can adjust the intensity with the engraving machine panel or with your computer's print driver. In the range of 1% to 100%, the adjustment range is 1%. The greater the intensity, the greater the speed. The depth of the cut is also deeper. The spot size of the laser beam can be adjusted with lenses of different focal lengths. Small spot lenses are used for high resolution engraving. Large spot lenses are used for lower resolution engraving, but for vector cutting, it is the best choice. The standard configuration for the new device is a 2.0 inch lens. Its spot size is in the middle and is suitable for all kinds of occasions.
Engravable materials wood, plexiglass, metal sheet, glass, stone, crystal, Corian, paper, two-color board, alumina, leather, resin, spray metal.
Advantages of laser processing 1. Wide range: Carbon dioxide laser can engrave and cut almost any non-metallic material. And the price is low!
2, safe and reliable: the use of non-contact processing, will not cause mechanical extrusion or mechanical stress on the material. No “knife marksâ€, no damage to the surface of the workpiece; no deformation of the material;
3, accurate and meticulous: processing accuracy can reach 0.02mm;
4, saving environmental protection: beam and spot diameter is small, generally less than 0.5mm; cutting processing saves materials, safety and health;
5, the effect is consistent: to ensure that the same batch of processing results are exactly the same.
6, high-speed and fast: can immediately engrave and cut according to the computer output pattern.
7, low cost: not limited by the amount of processing, for small batch processing services, laser processing is cheaper.
The processing material laser can process almost any material, but it is limited by the power of the laser transmitter. At present, the materials that can be processed by the “Rabao†laser engraving and cutting machine are mainly non-metallic materials.
Including: plexiglass, plastic, two-color board, glass, bamboo, foam, cloth, leather, rubber sheet, stone, artificial stone PVC board, two-color board, ...
Application field Advertising decoration industry plexiglass engraving (cutting) Medal, plaque laser production two-color plate laser engraving (cutting) Other non-metallic plate engraving (cutting)
Printing and packaging industry rubber version laser engraving printing roller laser engraving paper products laser cutting leather garment industry leather and surface pattern engraving clothing cloth pattern cutting model production industry model plate cutting craft gift industry bamboo slip laser engraving wood book laser engraving mahogany laser engraving two-color plate laser engraving Box-shaped handicraft engraving ceramic laser engraving processing technical parameters engraving area: 30*40, 40*60, 60*90, 60*130, 90*140 125*1850 CM, etc.;
Engraving speed: 0~~72m/min; stepless speed regulation;
Minimum forming text: Chinese character 2×2mm Letter 1×1mm Resolution: 0.025mm Positioning accuracy: Other industry applications have been successfully applied: computer embroidery company, plexiglass products company, model company; diamond sand cutting;
Application examples of craft gifts: wood-board painting---with various wood plates as materials, with the famous paintings of domestic and foreign masters as the theme, with delicate and exquisite carving as the expression form, the works are simple and elegant, and the taste is elegant, which is the best for modern home decoration. select.
Carved wooden book----With high-quality natural wood as the raw material, after cutting, molding and polishing, engraving the text, pattern and other content on it, it is a novel and unique book, you can read it in your leisure time. Careful reading, can also be used as a decorative ornament in the residence, highlighting the unique aesthetic taste of the host family. Bamboo slips-----the Zhou Dynasty, which began in the eleventh century BC, is the oldest book in China. The series of finely crafted bamboo slips provided by Reid Laser Machining Center use the finest bamboo materials. After dozens of fine processing procedures, the classic ancient books, poetry dictionary, aphorisms and famous posters are carved on bamboo slips. The products are exquisite and elegant. It has profound intentions and intentions, and has a high appreciation value of culture and art. It fills the market gap of cultural gifts and cultural collections. It is the best choice for people from all walks of life to collect and give gifts.
Engraving materials and technology
1, wood
A, logs (raw wood)
Wood is by far the most commonly used laser processing material and is easy to engrave and cut. Light-colored wood like birch, cherry or maple can be well vaporized by lasers, so it is more suitable for engraving. Each type of wood has its own characteristics, some of which are dense, such as hardwood, which requires greater laser power for engraving or cutting. We recommend that you first study the engraving characteristics before carving wood that is not familiar.
B, plywood
Sometimes customers may ask you to engrave on plywood. In fact, this is not much different from carving on wood. Just a little attention, the depth of engraving should not be too deep. The glued reverse edge after cutting will also be black like wood. The key is to see if the plywood is made of wood.
C, wood cutting
The depth of laser engraving machine cutting wood is generally not deep, within 5mm, because the laser power is small, such as slow speed cutting will cause wood burning. For specific operations, try using large-size lenses and repeating them.
E, coloring
After wood carving, there will generally be a feeling of being burned. Matching the color of the wood has an original artistic beauty. The depth of the color depends mainly on the laser power and the engraving speed. But some woods are usually softer in texture, and you can't change their color anyway (eg birch). Sometimes customers may ask you to color the finished product, using acrylic paint.
2, density paste panel
A, ordinary density veneer
This type of MDF is the kind of wood pallet we often use for signage liners. The material is a high-density board with a thin wood grain on the surface. The laser can be engraved on this sharp material factory, but the engraved pattern is uneven in color and black, and is usually colored. Usually you can use the 0.5mm two-color plate for the better design by learning the appropriate design.
B, laser special density veneer
Some MDFs are specially designed for laser engraving. The engraved patterns are uniform in color, and they are not colored and have good effects.
C, cleaning
After engraving, use a damp cloth to clean the surface of the MDF.
D, coloring
Acrylic paints or alkyd paints can be used. When engraving, the color of the graphic can be set to 60% gray, so that the bottom surface of the engraving has some pitting to improve the adhesion of the color.
3, acrylic (a kind of plexiglass)
A, acrylic
Acrylic is the most commonly used engraving material after wood. It is easy to cut and engrave. It has various shapes and sizes and is relatively low cost. There are two production processes for plexiglass: casting and calendering. Laser engraving is mainly produced by casting. Because it has a very white frosting effect after laser engraving, it is in sharp contrast with the original transparent texture. The plexiglass is still transparent after laser engraving, and there is not enough contrast. When buying a face-to-face job, you should emphasize to the dealer that you want high purity, otherwise the material that you buy back may melt when you engrave or cut it.
B, carving
In general, the plexiglass is back-engraved, that is, it is engraved from the front and viewed from the back, which makes the finished product more three-dimensional. Please mirror the graphics in the back carving, and the carving speed is faster and the power is lower. If the power is too high when engraving, there will be uneven stripes on the bottom surface. If you want to dig deeper, try to sculpt several times. In the case of back carving, the coloring should be carved deeper and then polished with a flame polisher to fill the color. If not polished, the color seen from the front will not be uniform.
C, cutting
Plexiglass is relatively easy to cut. If the customer's requirements are not high, it can be delivered after cutting, without the need for flame polishing. Otherwise, a blowing device should be used during cutting to improve the quality of the incision. When cutting plexiglass over 8mm, replace the large size lens. (Note: The operator should not leave when cutting plexiglass, there may be flame when cutting.)
D, cleaning
Acrylic pigments can be used, and other pigments can damage the finish of the plexiglass.
4, two-color board
A, two-color board
The two-color board is a kind of engineering plastic specially designed for engraving composed of two or more layers of colors. The specification is generally 600X1200mm, and there are also a small number of brand specifications of 600X900mm. The American ROWMARK is recognized as the best producer with stable quality and complete varieties. The engraved two-color plate is usually used for various indication signs and badges... It has the characteristics of uniform color, clear pattern and durability. In the two-color board, it can be divided into two categories of mechanical and laser, and some of the mechanical boards can also be used for laser engraving. The characteristics of the laser engraving plate are that the surface color layer is thin (<0.1mm), and the whole board is also thinner than the mechanical board (the laser board is generally 1.3 mm & 0.8 mm, and the mechanical board is generally 1.5 mm). When purchasing a two-color board, if you are not sure whether it can be used in a laser machine, you can consult the dealer first or take a small piece and try it out. Our experience is that if the surface of the board is very thin, you can generally Laser engraving, if the surface is thicker, try two engravings.
B, carving
If you are using a laser plate, the engraving effect will be very good, with obvious contrast and sharp edges. When using a mechanical plate with a thin surface, the engraving effect is not much different from that of the laser plate. If you look closely, the edge may not be as clear as the laser plate. Users generally do not use a mechanical plate with a thick surface. Otherwise, the laser power should be adjusted to a smaller value. The engraving can be repeated to remove the bottom surface. The final effect may not be too good. Engraved grayscale images can be designed on two-color plates with high contrast, such as black and white plates. After a large number of engravings, the two-color plate itself may be somewhat deformed, and it can be heated by hand and leveled by hand.
C, cutting
Under normal circumstances, users will ask you to cut the two-color board. If you are using a laser board, you can cut it after engraving. Pay attention to the speed is not too slow, do not cut through once, it is divided into three or four times, so that the edge of the cut material is flat and there is no trace of melting. The power should be just right when engraving, and should not be too large to avoid the appearance of melting marks. If you use a mechanical plate, you can only cut it to 50% depth, then use your hand to break it and sand the edges. If the user has a mechanical machine, it can be cut off on the mechanical machine and then moved to the laser machine for engraving.
D, cleaning
After engraving, use a damp cloth or alcohol to clean the surface. However, it should be noted that if the laser power is set too high during engraving, it may cause a layer of dust that is difficult to wipe off on the surface of the two-color board.
E, coloring
If the user requirements are not high, you can use the dots to represent the different colors in the logo. If you want to paint the painting area to be deeper, you can use acrylic paint or alkyd enamel. Other paints may damage the surface finish of the two-color board.
5, glass
A, glass
The laser can be engraved on the surface of the glass, but the depth of engraving is not deep and cannot be cut. Under normal circumstances, the laser can form a frosting or breaking effect on the surface of the glass. Usually the user wants to get the effect of frosting instead of breaking. The key depends on the texture of the work and the hardness.
B, carving
Glass engraving is usually difficult to control. Follow the steps below to make a smoother matte finish: apply a little wash on the area to be carved, and cut a piece of newspaper or napkin that is slightly larger than the area to be engraved. Dip the paper completely, squeeze out the excess water, and place the wet paper in the area to be engraved without pleating. Place the glass in the engraving machine, engrave while the paper is still wet, then remove the glass, remove the remaining paper, and clean the glass surface. If necessary, gently polish the glass surface with a 3M scotchBrite. Under normal circumstances, the laser power setting should be smaller, the accuracy is set at 300dpi, and the engraving speed is faster. Try to use large-size lenses for engraving.
Note: When laser engraving a lead-containing crystal, it should be doubled. The lead-containing crystal has a different expansion coefficient than ordinary crystal, which can cause crystal cracks or breakage during engraving. Smaller settings can avoid this problem, but you should always be on the verge of breaking.
C, laser engraving combined with sandblasting
The laser engraving machine can replace the cutting plotter and directly cut the sandblasting film on the glass. This process eliminates the transfer process of the film, saves time and improves the quality of the finished product.
D, cleaning
After engraving, use a damp cloth to clean the surface.
E, coloring
It can be colored with acrylic paint.
6, lacquered copper plate
A, painted copper plate
Usually, copper cannot be laser engraved. However, there is now a material with a special paint film attached to its surface. The laser can completely vaporize the paint film on the surface and then expose the underlying copper plate. Usually, the manufacturer will polish or specialize the copper plate before painting to ensure that the exposed area after engraving has sufficient finish and can be stored for a long time. If the copper surface is not treated, it is necessary to make a protective film after engraving to avoid oxidation over time and surface staining.
B, carving
Generally, low power and high speed can be used, and the accuracy is set at 500 dpi or more.
C, cleaning
After engraving, use a damp cloth or alcohol to clean the surface.
D, coloring
If the user requirements are not high, the dots can be used to represent the different colors in the logo. Acrylic pigments may be used for non-painting, and other paints may damage the surface finish of the copper sheet.
Application of laser engraving on carton packaging The carton packaging industry is a mature industry in the coastal areas, especially in the Pearl River Delta region. It is the closest to the most advanced international production technology. The carton packaging industry is above the scale and started in the Pearl River Delta. In the early years of the decade, it was 10-20 years later than the mainland. The carton packaging industry in the Pearl River Delta region matured in the mid-1990s. After 15 years of rapid development, Hong Kong businessmen, Taiwanese businessmen and local entrepreneurs have boldly introduced foreign corrugated board production lines and carton production lines, through the introduction and absorption of digestion until they fully master foreign advanced production. technology. The production of corrugated boxes in the Pearl River Delta has made tremendous contributions to the production and processing technology of the entire carton in China. The Yangtze River Delta region started earlier and really developed later than the Pearl River Delta. Due to the experience of the successful development of the Pearl River Delta, it has taken a lot of detours. At present, the total production volume of the corrugated carton packaging industry in the Pearl River Delta and the Yangtze River Delta accounts for more than 60% of the national carton packaging, and the production technology is also relatively leading.
In the mid-to-late 1990s, with the successful development of laser engraving technology, corrugated carton packaging plates gradually applied laser engraving technology. In fact, corrugated carton packaging is divided into two categories, one is sales packaging, and the other is transportation packaging. Sales packaging generally belongs to the inner packaging, and should be met with consumers during the sales process, such as toothpaste, soap, cigarettes (one pack and one pack). Transport packaging generally belongs to the outer packaging, such as: the whole box of toothpaste, soap, cigarette packaging, basically do not meet with consumption during the sales process, its main role is to facilitate storage and transportation. In addition, air conditioners, color TVs, refrigerators, and rice cookers are both transport packaging and sales packaging. The printing requirements are around 60 lines, transportation packaging is generally around 40 lines, and sales packaging above 80 lines is color offset printing. According to the statistics of relevant departments, more than 90% of China's cardboard boxes belong to transportation packaging, and most of them are produced by carton printing equipment.
The laser engraving machine is a high-tech product in the world today, and its product integration of light, machine and electricity is very high. Laser engraving has an efficient, fast, precise and clear automatic engraving function. The output power of a laser engraving machine is only 900W. It has been proved that laser power addition is energy-saving processing and environmental protection processing. Laser automatic engraving and plate making, can achieve 40-60 line printing effect, hand-made plate is below 40 lines. Laser engraving and plate making completely replace hand-engraved plate making. Due to the low cost of laser engraving and plate making, only one quarter of the cost of the resin plate is used. Currently, the carton industry generally uses laser engraving and resin plates as the corrugated carton packaging printing plate. There are many Yueming laser processing equipment on the market, and the resin version generally uses BASF and TDR plates.
The advantages of laser engraving and plate making are compared with hand engraving and plate making.
Laser engraving and plate making is completely imitating and optimizing the manual plate making design. After laser engraving and plate making is introduced to the market, in the past ten years, the engraving has a slope of 0.3MM through software upgrade, and the light decay at the corner of the engraving is automatically compensated. Improve the speed of automatic engraving. Basically, the hand-engraving plate is eliminated. In addition, laser engraving and plate making completely eliminates errors in engraving, engraving errors are inevitable in manual engraving, the manuscript is good, and a mistake is made in hand engraving. The whole piece is scrapped. If it is found to be in time, the whole batch of cartons will be scrapped. Laser engraving is the use of software to automatically engrave the original input without engraving errors. In fact, more than 20,000 hand-carved plate-making practitioners in the Pearl River Delta have basically disappeared and all changed.
Laser engraving and plate comparison with resin plate
The laser investment in plate making has a low investment. The 2 meter photosensitive flexible drying machine has a set of equipment of not less than 400,000 yuan, and a laser engraving machine is about 40,000 yuan. Resin plate production cost is high, the average price of resin plate in the Pearl River Delta region is 1.25 yuan / in2, laser engraving plate making 0.32 yuan / in2, although the mass production of resin plate can reduce the production cost to 0.90 yuan / in2, but not any enterprise can do it. Even if it can be done, the cost is still much higher than laser plate making.
Laser engraving and plate making low energy consumption, no pollution, resin plate processing is highly polluted, although the plate-making liquid recovery device is better than nothing, but the plate-making liquid recovery rate is impossible 100%, pollution is inevitable.
The laser engraving size can be unlimited, the production site only needs more than ten square meters, and the resin plate printing machine can not be less than 40 square meters. The production smell is pungent, the production site must be separated separately, and the processing size Limited by model. 2m photosensitive flexible printing machine, only to produce resin version within 2 meters. 5, laser engraving plate making with 0.3MM slope, durability performance is basically close to the resin version, only the resin printing below the seventh word is clearly better than the laser engraving version.
Practical application in the corrugated box packaging industry
At present, in the Pearl River Delta, the economically developed areas of the Yangtze River Delta, the photosensitive resin version, the laser engraving version is popular, the resin version is high in flexibility, and the printing is clear in the carton industry, which accounts for 30% of the market in transport packaging, while laser engraving Plate making fully accepts the original hand-engraved plate making 70% of the market. 90% of corrugated boxes belong to transportation packaging, and the printing requirements are generally around 40 lines, while the carton printing machinery can only reach 80 lines or less, and more than 80 lines generally use color offset printing. The laser engraving version can be used for electrical packaging between transportation packaging and sales packaging. Due to the habits of some manufacturers, most of them are now using resin plates.
Competition and prediction
In the application of electrical food packaging between transport packaging and sales packaging, the use of laser engraving is more important than environmental reasons. In the practice of carton packaging and printing, the air cushion or the elastic sponge pad printing is used for printing, and high resolution can be obtained, and the printing effect can be improved by 10-20 lines. At present, many carton packaging companies try this method to achieve better results. A more robust approach is to use a resin version for some smaller text patterns and a laser engraving plate for text patterns above the seventh character. Example: Zhuhai Doumen Chiba Paper Co., Ltd. adopts this method in the production of Gree air-conditioner export packaging carton, except for the letter pattern below the 7th word using resin plate, and the rest are all laser engraved. Therefore, the plate making cost is reduced under the condition of ensuring quality. If all the photosensitive resin plates are used, a set of printing plates is no less than two or three thousand yuan, and laser engraving and plate making is the main one, and the photosensitive resin plate is supplemented. A set of printing plates is only more than 500 yuan, and the enterprise should do everything possible to reduce the production cost. The focus on the environment is more valuable.
Diversified competition in plate making technology
Competition not only provides more choices for the carton packaging industry, but also greatly reduces costs and improves economic efficiency for the carton packaging industry. Prior to the advent of laser engraving, the average price of photosensitive resin was 5 yuan / in2. At that time, almost every industrial area in the Pearl River Delta had photosensitive resin production and processing points, and there was a long tendency. After the laser engraving plate was introduced to the market, the price of the photosensitive resin plate fell sharply, and the production scale fell to 1.25 yuan/in2 today. The benefits of platemaking competition for the carton packaging industry are obvious. In summary, in the future, corrugated carton packaging enterprises will continue to compete in printing plate technology, and the laser engraving plate making and photosensitive resin version will continue to compete, and will be more exciting. According to the prediction of corrugated packaging carton industry experts. In the future, on the printing and packaging carton plates, the photosensitive resin will be completely withdrawn, and the printing and sales of the packaging products will be printed. The photosensitive resin version still has the slightest advantage. About 60% of the photosensitive resin plate is used for laser engraving. The resin version of the unified rivers and lakes situation, no doubt has become history.
At present, the printing plate packaging industry printing plate, in general, laser engraving plate-making accounted for 75% of the market share, and there is a continuation of the trend, although the photosensitive resin has a high stability, high-definition printing effect, but the cost problem is constraining its development Bottlenecks, even if costs can be reduced, environmental issues are the most critical issues that constrain their development. Therefore, economic and environmentally friendly laser engraving and plate making is the future development direction of the printing industry in the carton packaging industry.
Development status of laser engraving equipment There are various kinds of laser equipment on the market, which are summarized as follows: [1] laser marking, laser welding, laser cutting, laser engraving, laser drilling, laser demonstration, laser platesetter, laser Beauty, laser medical, laser coding, laser heat treatment, etc. They are the crystallization products of laser technology and software control technology, bringing vitality to modern industrial civilization.
At present, with the development and promotion of laser engraving equipment in application technology and technology, the manufacturing and sales of laser plane marking and engraving equipment have shown a good upward trend. Companies engaged in the development, manufacture and sale of laser equipment in the country, as well as companies that represent foreign laser equipment, are rapidly increasing. Competition is also becoming increasingly fierce.
However, all laser equipment in the domestic market is stuck in the laser plane engraving stage, and no company or research unit can come up with a laser three-dimensional engraving system. Some fine three-dimensional mold carvings still rely on computer carvings or hand carvings. However, both machine carving and hand carving have great weaknesses and limitations, which restrict the development of some fine crafts. There are several laser research institutions in China that are researching laser three-dimensional engraving machines.
In the field of fine carving, the best traditional mechanical carving equipment in China is Beijing Jingdiao, which has won huge market and success in solving fine carving molds. However, due to the inherent limitations of mechanical knife carving, there are still many high-end carvings that cannot be realized. In some areas, it has to be hand-carved or repaired with the help of superb craftsmanship. In terms of laser engraving molds, there are Guilin Xingchen lasers, which are mainly sold to the mold manufacturing industry by using high-power laser marking machines. The current sales situation is good. However, because its engraving technology can only engrave plane text and patterns, there is still a distance from the laser three-dimensional engraving, so it is still not able to show its talents in this field.
The laser three-dimensional engraving system (English name: 3D laser engraving system) is another new member of the laser equipment family. It is another important symbol of the progress of laser technology and a tool for the mold manufacturing industry. Laser three-dimensional engraving mold refers to the high-energy laser beam engraving the 2D or 3D shape you need on the mold material or on the copper electrode. At the same time, it is essentially different from the current crystal engraving machine. The three-dimensional concept of the crystal engraving machine is a three-dimensional image of a certain density of point clouds, and can only be applied to crystal crafts. The laser three-dimensional engraving machine is a three-dimensional solid space engraving realized by precise CAD software technology, so it can be applied not only in the field of general product finishing, but also in the field of mold manufacturing.
In foreign countries, equipment manufacturers have developed corresponding laser three-dimensional engraving systems and applications, and have already extended their sales reach into China. There are several merchants who represent this type of equipment, but there is no prototype, and the price is more than 1 million yuan. For example, FOBA.G-SERIES developed by VIRTEK in Canada is currently mainly used in the mold engraving industry.
The choice of the five element size of the laser engraving machine
The customer should select the model of the engraving machine and its power according to the needs of the business and the funding situation. Generally, the small-format engraving machine has 600mm×600mm and 600mm×900mm, and the feeding width is 700mm. The engraving two-color board is the most basic application of the small-format engraving machine, and the acceptance is very good. The price of the smaller engraving machine is similar to that of the engraving machine, but it is more troublesome and unnecessary waste when engraving the two-color board. The large-format engraving machine has 1200mm×1200mm, 200mm×1500mm, 1500mm×2400mm, 2400mm×3000mm. The engraving machine of the above models has a width of more than 1350mm. The size of plexiglass and PVC board on the market is now 1300mm× 2400mm, so these models are suitable for customers who require large-format engraving machines.
Spindle motor
The spindle motor is an important component of the computer engraving machine, and its performance has a crucial influence on the performance of the computer engraving machine. Machining spindles are generally divided into two categories: precision machining spindles and high power cutting spindles.
1. The fine machining spindle is characterized by low noise, high speed and height, and is suitable for processing particularly fine workpieces such as stamps, nameplates, badges and so on. Such motors are usually high-speed variable frequency motors with low power, typically below 250W. The disadvantage is that the ability to cut thick materials is poor and does not cut off thicker materials.
2, high-power cutting spindle, mainly used for cutting, high-power engraving, characterized by high power, strong cutting ability, especially suitable for cutting the universe, three-dimensional characters, of course, you can also make badges, nameplates, seals and so on. Such high-power spindles can be generally classified into brushless high-speed AC motors and brushed AC motors according to the characteristics of the motor. The main differences are:
A. The speed of the brushless variable frequency motor is high, the shifting range is 70060000 rpm, and the maximum speed of the brush AC motor is not more than 24000 rpm:
B. The brushless variable frequency motor has high rotation precision, low wear and low noise, and the noise is much lower than that of the brushed AC motor;
C. The brushless inverter motor has good blocking characteristics. Because there is a special current limiting circuit on the inverter, the short-time blocking will not burn the motor, and the brushed AC will smoke quickly when it is overloaded or blocked. Burnt and not repairable;
D. The brushless frequency conversion motor adopts the frequency conversion control technology to adjust the speed. It is a professional grade product with long service life. The manufacturer provides one year free replacement. In the future, the motor can be maintained by replacing the high speed bearing, and the brushed AC motor uses the electricity. The life of the motor or motor carbon brush has to be replaced in about 300 hours, so the carbon brush AC motor is usually not guaranteed for one day.
Control method and speed selection
Control methods can now be divided into three types:
A. All the calculation work is completed by computer control. When the engraving machine is working, the computer is in working state, and other typesetting work cannot be performed. This may cause the computer to malfunction and cause waste.
B. Using the control of the single-chip microcomputer, this controller can perform typesetting while the engraving machine works, but can not turn off the computer, which is actually equivalent to saving 7 computers, and reducing the waste caused by the computer's misoperation.
C, using the USB port to transfer data, the system has a memory capacity of more than 32M. As long as you save the file, you can completely disconnect from the computer, turn off the computer, or perform other typesetting. This method greatly improves the working efficiency of the engraving machine.
guide
The large-format engraving machine must use a widened imported square guide rail, and its load capacity and precision retention ability are more than 30 times that of the circular guide rail, which ensures the high quality and high speed of the engraving machine.
Precision
The small-format machine engraves 4mm Chinese characters, or the large-format engraving machine engraves 1.5mm small characters, which must be seen very clearly under the magnifying glass.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn