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The digitalization process of domestic sheetfed offset printing machine has a long way to go
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Digital is the main direction of development of innovative sheetfed offset manufacturing technology. In recent years, imported brand sheetfed offset presses have continued to innovate in the application of digital technology, and domestic sheetfed offset presses are not far behind. This article will discuss with you the digitalization process of domestic sheetfed offset presses.
The digitization of sheetfed offset presses mainly includes two aspects. On the one hand, it is the digital transformation of the mechanical transmission system of the equipment, that is, the application of independent drive technology or numerical control technology. The independent drive technology has been mature, the high-precision encoder control synchronization error can be controlled within 0.03mm, the servo motor's rotation accuracy is one-tenth of a ton, and the servo drive can be controlled to one millionth of a rpm, so that the high precision is completely Can meet the requirements of print quality. On the other hand, the digitization of the adjustment, setting and manipulation of the printing process, and even the digitization of the printing fault diagnosis, that is, the above operation can be performed on the console.
Progress in digitalization of domestic sheetfed offset presses
In recent years, the digitalization of domestic sheetfed offset presses is mainly reflected in the following two aspects.
1. Digitalization of drive technology
The domestic sheetfed offset press only uses the independent drive technology for the ink system. The functions of the ink transfer roller, water transfer roller, ink color remote control, paper preset, etc. have been digitized. The application of independent drive technology in other systems is the direction of innovation. . There are already supporting enterprises in China to start manufacturing independent driven paper feeders, and a few companies are also manufacturing sheetfed offset presses that are separated from the paper feeders. The latest development is that several companies in China have begun to manufacture UV glazing and drying equipment.
The next step of the digital transformation of the domestic sheetfed offset printing machine is to first realize the digitization of the equipment setting, such as the functions of paper feeding, ink feeding, fountain solution supply and other main motion separation, and then solve the paper preset, ink color remote control, automatic sleeve. The servo control of the quasi-equal function, so that the information of the pre-press plate can be transmitted to the printing machine through the digital interface, thereby completing the automatic adjustment of the information. At present, the independent drive of the no-blank technology, printing cylinder and paper-feeding process is a major innovation of foreign sheetfed offset presses. We still have certain difficulties in entering, but we should believe that this is the direction of development. Boldly carry out independent innovation.
2. Information transfer digitization
Most domestic sheetfed offset press manufacturers have not set up a digital interface for information transfer. Prepress platemaking information needs to be manually adjusted and set on the press, which not only takes up a lot of auxiliary time, but also repeats adjustments and settings. The error of ink color reduction. At present, the domestic sheetfed offset press urgently needs to be configured with automatic paper adjustment functions, including paper feeder, delivery machine, gripper row, paper preset function of front side gauge and automatic adjustment of ink color reduction. Only with these features makes the digital interface meaningful. Of course, while completing the hardware design, the software design must be completed, that is, the RIP software is used to make the prepress and the printing compatible with each other, so that the prepress printing information can be quickly input into the printing machine, which can save repeated adjustment time and adjustment error.
The domestic sheetfed multi-color offset press has also achieved new results in the setting of digital functions, Jiangsu Chang