Among the many varieties of post-press equipment, the technology and industrialization of my country's die-cutting machine products have reached a high level, and its main signs are reflected in the following aspects:
1. It is the import value of die-cutting machines that has declined, while the export value has continued to increase. According to customs statistics: 461 units of molding equipment were imported in 2002, worth US$25.291 million; 455 units were imported in 2003, worth US$26.028 million; in the first to third quarter of 2004, only 213 units were imported, worth US$17.151 million; the annual import trend is expected to be at decline. In 2002, 765 units were exported, worth US$10.861 million; in 2003, 1,066 units were exported, worth US$13.893 million; in the first to third quarter of 2004, 958 units were exported, worth US$15.591 million. It is expected that the annual export will exceed last year's.
Second, the varieties of die-cutting machines basically meet the production needs of the domestic printing and packaging industry. In China, we can already manufacture trademark die-cutting machines including fully automatic flat die-cutting machines, self-adhesive trademark die-cutting machines, round die-cutting machines, round die-cutting machines, and flat die-cutting and creasing machines. (Tiger Mouth Die-cutting Machine) and other products can already manufacture die-cutting units on the linkage line, such as: die-cutting units for flexographic printing machines, gravure printing machines, self-adhesive printing machines, corrugated paper printing and slotting machines and other equipment.
Third, there are more than 20 companies manufacturing fully automatic and semi-automatic die-cutting machines. Among them, the main manufacturers include Shanghai Yahua, Beiren Group, Tangshan Yuyin, Tianjin Evergreen, Beijing Shengli Weiye, Hubei Beijingshan, Henan Xinxiang, Shanghai Yaoke, Shanghai Dinglong, Shanghai Xuheng, Qingdao Micron and other enterprises. There are many companies producing trademark die-cutting machines, among which the main manufacturers include Xianyang Hefeng, Beijing Machangying and other companies. There are countless companies that produce flat die cutting and creasing machines (tiger mouth die cutting machines).
Level analysis of fully automatic flat die-cutting machines
Fully automatic flat die-cutting machines are key equipment for post-press processing of printing and packaging products. They are not only efficient and safe , high-quality molding equipment, at the same time, at the same time. It is also an updated product of the flat die cutting and creasing machine (Tiger Mouth Die Cutting Machine) and is favored by packaging and printing companies. The wide application and broad market prospects of this equipment have attracted many companies to enter the manufacturing ranks of fully automatic flat die cutting machines. Our country's fully automatic flat die-cutting machines have formed a complete series of product varieties and have reached a high level in technology.
The working principle of the fully automatic flat die-cutting machine is that the paper feeder feeds the paper into the front and side rules through the paper feeding component, and then the paper is sent to the die-cutting mechanism by the tooth row for secondary cutting. Die cutting is performed at the first positioning. After die cutting, it is sent to the waste removal mechanism by the tooth row. After removal, it enters the paper delivery department to complete the die cutting operation. The technical level of my country's fully automatic flat die-cutting machines has been greatly improved, which is mainly reflected in the fact that the die-cutting speed index of advanced enterprise equipment has reached N8000 sheets/hour. The die-cutting accuracy has reached ±0.1~0.2mm. The fully automatic flat die-cutting machines produced by most companies generally have waste removal devices. Some companies can manufacture die-cutting machines that can be used for both holographic hot stamping and die-cutting. Some companies can manufacture fully automatic flat die cutting machines and semi-automatic flat die cutting machines for die cutting corrugated paper. Most of the basic parts of these equipment are made of steel structure wall panels and processed by machining centers. Accuracy and rigidity are fully guaranteed. The technical difficulties of the fully automatic flat die-cutting machine, such as the cam intermittent mechanism, chain guide rail, and gripper row, all have my country's independent patented technology and intellectual property rights. Touch screen technology, variable frequency speed regulation technology and programmable controller technology are widely used in the equipment, which greatly improves the stability and reliability of the equipment. The export of molding equipment has increased year by year. The fact that imports dropped sharply in 2004 has proved that the technical level of domestic fully automatic flat die-cutting machines is improving and users' recognition is increasing.
In order to ensure the product quality of this type of die-cutting machine, the National Printing Machinery Standardization Technical Committee has formulated relevant technical standards at the end of the last century, including JB/T8161998 flat die-cutting machine and JB/T9151999 flat die-cutting machine. Two standards for flattening and hot stamping machines are used to guide enterprise production and national supervision and inspection of quality.
Data communication between multiple programmable controllers of the die-cutting machine; LCD intelligent operation display, human-machine dialogue; use of optical fiber sensors to detect cursors and precise positioning; digital servo; holographic aluminum foil surface tension control; hot stamping holographic machinery Precision manufacturing technology will continue to be used. In addition to die cutting, hot stamping and automatic scrapping are also required. Take the CNC die-cutting machine of Kunlun Machinery Company as an example. From paper feeding, die-cutting/hot stamping, to upper and lower lamination/waste discharge, and finally paper collection/sheet cutting, everything is completed automatically. Users do not require absolute high speed. But it requires stability and reliability. As the main equipment for post-press packaging and printed matter processing, die-cutting machines have formed a family of equipment in my country of different grades, with a complete range of categories and rich varieties for a variety of printing and packaging products, basically meeting the domestic demand for equipment. The development trend of die-cutting machines has the following characteristics:
1. Circle-on-circle die-cutting will be the best die-cutting method for mass printing and packaging products. It has been used in flexographic printing production lines, form printing machines, corrugated printing slotting and die-cutting machines, rotary self-adhesive trademark printing machines, gravure printing die-cutting production lines and other in-line printing and packaging equipment. With the development of printing technology, especially the improvement of the processing technology level of circular die-cutting rollers, the application range of circular die-cutting will be more extensive, and the production efficiency of die-cutting will be further improved.
2． With the rapid development of the printing and packaging industry, the scale of enterprises continues to expand. The application market of fully automatic flat die cutting machines will continue to expand. In contrast, the sales market of semi-automatic flat die-cutting and creasing machines will further decline. In addition to low productivity and high labor intensity for operators, poor safety and prone to work-related accidents are the main reasons for its decline. reason. However, due to the large gap in the scale and level of my country's printing and packaging industry, this equipment will still have a certain market and will still play a role.
3. Traditional self-adhesive trademark printing machine manufacturing enterprise. Production has entered a difficult period, with production and sales declining year by year. The main reason is that the production and sales of high-tech products - efficient rotary satellite trademark printing presses and flexographic printing presses have increased. The production efficiency of printing and on-line circular press and circular die-cutting is much higher than that of intermittent printing and intermittent flat press. Die-cutting backward production equipment.
4. my country has imported many full-sheet large-format sheet-fed printing presses. The Rapida 1620 machine represented by KBA and others has a maximum paper feed size of 1200mm and far-infrared drying devices, and developed ultra-full sheet-fed printing machines with maximum paper feed sizes of 1300mmX1850mm and 1020mmX2050mm. Three printing machinery companies in our country have also begun to produce full-sheet sheet-fed printing machines. The maximum paper feed sizes have reached: 1020mm The introduction of full-sheet paper and the expansion of the market will also create demand for die-cutting processing equipment for packaging printed matter. CNC die-cutting machines that can adapt to full-sheet specifications have been mass-produced in my country. Take the die-cutting machine produced by Kunlun Machinery as an example. The die-cutting speed of this machine reaches 12,000 sheets/hour, ranking among the world's advanced levels.