Calender: Analyze and predict the development prospects of domestic printing presses

        1. Four-color offset printing machine has gradually become the darling of the market

　　 The domestic offset presses exhibited in previous exhibitions were mainly single and two-color, and the four-color offset press market has always been controlled by foreign manufacturers. Almost all of the offset press exhibitors at the All Print Fair launched four-color offset presses, ranging from eight-color four-color to four-color four-color, two-sided four-color and full-sheet four-color, and some manufacturers also introduced five-color presses. The display ratio of traditional single and two-color offset printing presses has greatly reduced the expectations of users for four-color printers, and it is far higher than the expectations for single and two-color offset presses. According to the manufacturer's report, almost every manufacturer's orders for four-color machines are scheduled to be three months later, and some have even been scheduled to the end of the year. The popularity of the four-color machine is related to the market cultivation over the years. In the past few decades, my country's printing press market is dominated by single and two-color machines. Many printing companies have purchased single and two-color machines at the beginning. After years of accumulation, they have already had a certain amount of capital and just reached the strength of buying domestic four-color machines. This is also the main reason why the domestic four-color machine market is optimistic.

　　 2. The performance of the machine has been steadily improved

　　 The stop-and-go era that all domestic printing presses can perform on-site printing performances is over. Accurate overprinting is no longer a major problem at the specified speed. The overprinting error of the samples displayed on site can be controlled within 0.05mm, and the speed of the machine can reach more than 10,000 revolutions per hour. The quality of field printing and flat screen printing has also been significantly improved. The noise of the machine is obviously reduced and basically can meet the requirements of the standard. It is especially commendable that the speed of the roll paper printing machine launched by Beiren reaches 75,000 sheets per hour, which has reached the advanced level of similar foreign products.

　　 3. The machine structure design is getting closer to the international level

　　 Many domestic manufacturers' equipment exhibited at the All-In-Print Exhibition have fully absorbed foreign advanced technology in addition to their own accumulated technology in structural design. At the same time, the addition of many independent innovation technologies has significantly improved the level of machine structure design. Down-swing front gauge, paper transfer mechanism double-diameter imprinting and transfer roller, pneumatic control (clutch pressure, ink circuit interlocking mechanism, etc.) pneumatic cardboard conveying, conjugate cam drive mechanism built-in spring gripper mechanism alcohol moisturizing, Automatic or semi-automatic plate loading mechanism has basically become the mainstream structure of modern printing presses.

　　 Fourth, the degree of automation is gradually improving

The degree of automation of domestic printing presses has been greatly improved. Take the offset press produced by Yingkou Guanhua as an example. Its eight-open four-color offset press is equipped with a CPC ink supply device, which can directly control the ink volume of each color group through the console. Offset press manufacturers use this mechanism. Its newly produced eight-open four-color offset press is also equipped with a fully enclosed ink volume adjustment device. The gap size of each ink fountain can be automatically adjusted by scanning the signal bar on the sample sheet by the scanning head. LCD touch screen control, etc. have been promoted and used on printing equipment. Automatic plate loading and electric perforation has gradually become the standard configuration of printing presses, and its level is close to the advanced level of similar foreign products.