First, the import value of die-cutting machine is decreasing, while the export value is increasing. According to customs statistics, in 2002, 466,438+0 molding machines were imported, amounting to US$ 25.298+0 million. In 2003, 455 sets worth $26.028 million were imported; In 2004 1 ~ 3 quarters, only 2 13 sets were imported, and171510 million USD; It is estimated that the annual import trend is declining. In 2002, 765 sets were exported, amounting to USD 65,438+USD 0,086,65438+USD 0,000; In 2003, 65,438+0,066 sets were exported, amounting to US$ 6,543.8+389.3 million; In the third quarter of 2004, 958 sets were exported, amounting to 65,438+0,559.10,000 USD. It is estimated that the annual export will surpass last year.
Second, the varieties of die-cutting machines basically meet the production needs of domestic printing and packaging industry. It can manufacture domestic products such as trademark die-cutter, self-adhesive trademark die-cutter, rotary die-cutter and flat die-cutter (tiger die-cutter), and can manufacture die-cutting units on the linkage line, such as flexographic printing machines, gravure printing machines, self-adhesive printing machines, corrugated paper printing slotting machine and other equipment.
Thirdly, there are more than 20 enterprises that manufacture fully automatic and semi-automatic die-cutting machines. The main manufacturers are Shanghai Yahua, Beiren Group, Tangshan Yuyin, Tianjin Evergreen, Beijing Shengli Ye Wei, Hubei Jingshan, Henan Xinxiang, Shanghai Yao Ke, Shanghai Dinglong, Shanghai Xu Heng, Qingdao Guang Mei and other enterprises. There are many enterprises that produce trademark die-cutting machines, among which the main manufacturers are Xianyang Hefeng and Beijing Machangying. There are countless enterprises that produce flat die-cutting machine (tiger die-cutting machine).
Transverse analysis of automatic flattening die-cutting machine
Automatic flattening die cutting machine is the key equipment for post-press processing of printing and packaging products. It is not only an efficient, safe and high-quality molding equipment, but also an updated product of flat die-cutting and creasing machine (tiger die-cutting machine), which is favored by packaging and printing enterprises. The wide application and broad market prospect of this equipment have attracted many enterprises to enter the manufacturing ranks of automatic flat die-cutting machine, which has made China's automatic flat die-cutting machine form a complete product series and reached a higher level in technology.
The working principle of the automatic flattening die-cutting machine is that the paper feeder sends the paper to the front gauge and the side gauge through the paper feeding part, and then the paper is sent to the die-cutting mechanism by the tooth row for secondary positioning die-cutting. After die-cutting, the paper is sent to the waste discharging mechanism by the tooth row, and after the waste is discharged, it enters the paper delivery part to complete the die-cutting operation. The technical level of automatic flat die-cutting machine in China has been greatly improved, mainly in the following aspects: the die-cutting speed index of advanced enterprise equipment has reached N8000 sheets/hour, and the die-cutting accuracy has reached 0. 1 ~ 0.2 mm. Most automatic flat die-cutting machines produced by enterprises are generally equipped with waste removal devices. Some enterprises can manufacture holographic hot stamping die-cutting dual-purpose die-cutting machines, and some enterprises can also manufacture automatic flat die-cutting corrugated paper. Most of the basic parts of these equipment are steel wallboard, and the machining center is fully guaranteed for machining, precision and rigidity. The technical difficulties such as cam intermittent mechanism, chain guide rail, gripper teeth row of automatic die-cutting machine have our own 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 fact that the export of molding equipment is increasing year by year, and the import is greatly reduced in 2004 proves that the technical level of domestic automatic flat die-cutting machine is improving and the recognition of users is improving.
In order to ensure the product quality of this type of die-cutting machine, the National Standardization Technical Committee of Printing Machinery formulated relevant technical standards at the end of last century, including JB/T8 16 1998 flat die-cutting machine and JB/T9 15 1999 flat stamping machine, which are used to guide enterprise production and national quality supervision and spot check. Data communication between multiple programmable controllers of die cutting machine: LCD intelligent operation display screen, man-machine dialogue; Using optical fiber sensor to detect the cursor and locate it accurately; Digital servo; Surface tension control of holographic aluminum foil: precision manufacturing technology of hot stamping holographic machinery will continue to be used. In addition to die cutting, it is also required to be bronzed and automatically remove waste. Taking the CNC die-cutting machine of Kunlun Machinery Company as an example, the paper feeding, die-cutting/bronzing, up-and-down bonding/discharging, and finally the paper receiving/cutting are all completed automatically. Users do not require absolute high speed, but require stability and reliability. Die-cutting machine, as the main equipment for post-press packaging printed matter processing, has formed a family of equipment with different grades, complete categories and rich varieties of various printing and packaging products in China, which basically meets the domestic demand for equipment. The development trend of die-cutting machine has the following characteristics:
1. Rotary die cutting will be the best way to print and package products in large quantities. It has been applied to online printing and packaging equipment such as flexographic printing production line, form printing machine, corrugated paper printing slotting die cutting machine, rotary label printing machine and gravure printing die cutting production line. With the development of printing technology, especially the improvement of circular die-cutting cylinder processing technology, the application scope of circular die-cutting will be wider and the production efficiency of die-cutting will be further improved.
2. With the rapid development of printing and packaging industry, the scale of enterprises is expanding. The application market of automatic flattening die-cutting machine will continue to expand. In contrast, the sales market of semi-automatic flat die-cutting indentation machine will further decline. In addition to low productivity and high labor intensity of operators, poor safety and easy occurrence of industrial accidents are the main reasons for its decline. However, due to the great gap between the scale and level of China's printing and packaging industry, this kind of equipment will still have a certain market and will still play a role.
3. Traditional manufacturers of self-adhesive trademark printing machines. Production entered a difficult period, and the production and sales volume decreased year by year. The main reason is that the production and sales of high-tech products-high-efficiency rotary satellite trademark printing machine and flexographic printing machine have increased, and the production efficiency of printing and continuous rotary die-cutting is much higher than that of backward production equipment such as intermittent printing and intermittent flat die-cutting.
4. China imported a batch of large format sheet-fed printing machines, all sheets of paper. The force ratio 1620 represented by Gao Bao et al. The maximum paper feeding size is 1200mmX 1620mm, the printing speed reaches 120D0 sheets/hour, and it is equipped with polishing and far-infrared drying devices, and the maximum paper feeding size is 65430. There are also three printing machinery enterprises in China that have started to produce full sheet-fed printing machines. The maximum paper feeding size is 1020mmX 1420mm and 1020mmX 1440mm respectively, and the maximum printing speed is 5000 ~ 7000 sheets/hour. With the introduction of full paper and the expansion of the market, there will be a demand for die-cutting processing equipment for packaging printed matter. Numerical control die-cutting machines adapted to the specifications of all plates have been mass-produced in China, among which the die-cutting machine produced by Kunlun Machinery, for example, has a die-cutting speed of 12000 sheets/hour, ranking the advanced level in the world.