Development and Classification of Pen Machining Machines

The ink jet printer is a non-contact inkjet marking system controlled by a single chip computer. It controls the internal gear pump or supplies the compressed gas from the outside of the machine to apply a certain pressure to the ink in the system, so that the ink is ejected through a tens of micrometer aperture nozzle. The crystal oscillation signal applied to the nozzle is used to split the continuous ink line to split into ink droplets with the same frequency, the same size, and a certain pitch. Then, the ink droplets are respectively charged when passing through the charging electrode, and the charged amount of the ink droplets is determined by the CPU. Control; After the detection electrode to detect the actual charge and phase of the ink drop is correct; Finally, the charged ink droplet deflection in the deflecting electrode to form the deflection field, ejected from the nozzle, respectively, hit the product surface in different locations, the formation of the required A variety of text, patterns and other logos. The ink droplets that have not been charged will enter the recovery tank and re-enter the ink circulation system inside the machine.

Printer History:

The inkjet printer is a high-tech product that integrates electromechanical integration by using charged ink particles, which are deflected by a high-voltage electric field, and on the surface of various objects. Products are widely used in the food industry, cosmetics industry, pharmaceutical industry, automotive and other parts processing industry, wire and cable industry, aluminum plastic pipe industry, tobacco and wine industry and other fields, the machine can be used to print production date, batch number, bar code As well as trademarks, anti-counterfeiting marks and Chinese characters, it is a powerful device for implementing the health law and promoting the modernization of packaging.

The theory of ink jet printers was invented in the late 1960s and it was not until the 1970s that it produced the world's first commercial printer. To date, only a few countries, including the United States, France, Britain, and Japan, have been able to produce such printers. Since 1992. The first domestic manufacturer of inkjet printers has ended the monopoly of foreign products.

● What is a small font jet printer

Jet printer is the use of offset ink offset method to offset the ink out of the normal cycle, the ink directly on the surface of the work, the use of logic to control the position of each droplet, usually only vertical changes in ink droplets, It is necessary to form the data we want to print by moving the work object. Since it is jetted ink, it does not need direct contact with the work surface, so the following advantages can be obtained:

1. Fast

Taking the production of soft drinks Coke as an example, it can reach more than 1,000 bottles per minute.

2. Data variability

Because it is computer control data, it can easily change data. Data content such as date and time, serial number, and lot number can be added to the data content.

3. The surface material of the application

The jet printer has a variety of different inks to choose from, whether it is paper, plastic, metal, glass, hard surface or soft and fragile surface can get a good printing effect.

●What is the big type jet printer

The principle of large fonts is quite similar to small fonts, except that the ink is ejected using each individual valve control switch.

If it is a 7-point nozzle, there are 7 independent valves to control the font size of the printing. It is generally applied to the outer box, outer package or large workpieces, such as rough water pipes or asbestos boards, heat insulation plates, etc. Workpieces. Its advantages are similar to those of small fonts, except that it works at a slower speed, averaging 60 meters per minute, depending on the width of the printed font.

● What is a laser printer

Jet printing and inkjet are very similar, but the ink is changed to CO2 laser light, the use of electric light to burn the surface of the work to form a font. The DGM uses a rotating electro-optical beam to create the desired pattern or data within the specified range.

Application of coding technology

Today, the application of marking technology is gradually deepening in every corner. In particular, the application scope of industrial applications has become wider and wider, and the complexity of applications has greatly increased, making logos an indispensable and important part of production in various industries. Plastic pipe, profile, aluminum (steel) plastic composite pipe and other plastic extrusion production is no exception. The reasons why plastic extrusion material manufacturers label their products are the following:

1) Facilitate product identification. By labeling products with special logos, brand names and logos, etc., products can stand out from the competition and increase brand awareness.

2) The need for product tracking records. The batch number, shift number or production date of the product is directly printed on the product, so that each product has good traceability, which greatly facilitates the quality management of the company and the regional management of the product.

3) Prevent counterfeiting. Manufacturers can often prevent and suppress counterfeiting through the identification of products. The application of new technologies allows those legitimate manufacturers to stay ahead of counterfeiters.

4) Increase the added value of the product. The identification of a trademark on a plastic pipe or the name of a manufacturer implies a promise that consumers generally consider to be a product of a company that has a better quality track and is responsible for the quality of the product.

The choice of inkjet printer

According to the difference between the operating principle of the printer, the machine can be divided into the following two categories:

1) The continuous ink jet printer is abbreviated as CIJ type.

Its working principle: the ink is continuously ejected from a single nozzle through the pressure, and after the crystal oscillates, it breaks to form the ink dot; the ink dot is scanned and formed on the surface of the moving object after charging and high voltage deflection.

2) dro on demand (DOD).

Its working principle: The nozzle is composed of a plurality of high-precision valves. When the word is sprayed, the corresponding valve of the font type is quickly opened and closed. The ink is ejected by a constant internal pressure to form characters or figures on the surface of the movement.

Printer classification

One: The continuous ink jet printer is referred to as the cij type.

The continuous ink jet system continuously ejects ink from a single nozzle through pressure, and breaks through the crystal to form ink dots; the dots are scanned and formed on the surface of the moving object after charging and high voltage deflection. Most of them are used in low packaging requirements and require a high packaging market. Most industrial inkjet systems use cij technology. With this technique, the stream of ink droplets is generated in a line and an image is generated by a deflection of one plate. Industrial cij systems can reach speeds of up to 1000 feet per minute, much faster than dod, but image quality is also lower than with dod technology. Cij For a large number of direct mail order operations, the numbering and labeling of food, beverage, pharmaceutical and beauty packaging and printing products is the best solution. It is also used for lottery ticketing and coding.

Second: on-demand ink jet printer (dro on demand) referred to as dod type.

The industrial on-demand ink supply system nozzle is composed of a plurality of high-precision valves. When the characters are sprayed, the corresponding valve of the font is quickly opened and closed. The ink is ejected by a constant internal pressure to form characters or graphics on the surface of the movement. A digital signal produces a drop of ink on paper rather than a stream of ink. The latest dod nozzles, the color formed on the paper with a more precise collection of dots, is more similar to traditional offset printing. Therefore, in the four-color high-precision printing where the quality is the most important factor, dod is the best choice, and it can produce near-photographic quality. Dod's printing speed is between 100 and 300 feet per minute. Dod uses include wide-format printing, colorful icons for packaging, shopping-point displays, fabrics, and large-format logos. However, in the industrial packaging industry, due to the limitation of printing speed, it cannot be applied to high-speed packaging lines. Many companies are developing high-speed dod printing equipment that can be used for packaging purposes, with nearly a dozen brands in Europe alone.

The continuous printing technique, approximately, corresponds to the pulse voltage applied to the charging electrode. The actual process is not so simple. We must synchronize the drop breakage with the charging of the charging pad, we must consider the mutual exclusion between the charged droplets, and even the aerodynamic problems of flying drops. Users of continuous inkjet coding machines do not feel these problems, but it is these problems that make designing continuous inkjet coding machines interesting. Because ink jets are continuous, continuous inkjet printers can use many types of inks, especially those that dries very quickly (within 1 second). Therefore, continuous inkjet coding technology is ideal for printing on non-permeable surfaces such as cans and plastics that need to be processed quickly after printing. In addition, more colorful pigment inks can also be used. Since continuous jet printing has a relatively high jetting speed, the jet printing distance of the continuous jet printing is usually far more than the jet printing distance (generally more than 10 mm), and the jet printing quality does not decrease. The placement of the nozzles allows for a great deal of choice.

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