New Technology Maintenance Newspaper Printing (2)

2. Shaftless transmission technology
The shaftless transmission technology uses a motor to directly drive the print cylinder, and the power transmission between the units is no longer dependent on a long drive shaft. The shaftless transmission technology adopts advanced "Electronic shaft transmission technology", which facilitates the computer console control and remote control of the printing press. It can improve the equipment accuracy, reduce equipment wear, energy consumption and noise, make the equipment manufacturing, installation, maintenance and more For the sake of simplicity, it reduces the mechanical failure of the equipment and can realize the modernized control scheme of “decentralized control and centralized management”. Non-shaft transmission technology Each printing cylinder and printing unit are controlled and driven by independent motors. The reaction is sensitive and easy to operate, and each printing unit can be conveniently clutched and prepared for printing, shortening the preparation time and auxiliary preparation time. The waste report rate is only 1/20 to 1/10 of that of a conventional shaft printer; the printing speed is fast and the printing quality is stable. The use of a non-shaft driven paper feed device ensures that the web tension is stable, the paper strip is stable, and the color overprinting is more accurate before entering the printing unit. In recent years, newspapers imported from the domestic newspaper industry and commercial web machines have almost all adopted shaftless transmission technology.

3. Double width, single diameter seamless or narrow seam blanket cylinder technology
Single Diameter Rollers When producing several stacks of newspapers at the same time, the total number of pages, the color version, and the order of each newspaper can be changed. In this way, the double-page roller's page-storing device can be omitted, giving the machine greater processing flexibility and adapting to the ever-increasing newspaper layout and the random arrangement of color advertisements. Using seamless or narrow seam blanket roller technology, it can overcome the vibration generated by the printing plate and blanket roller during high-speed operation, ensure stable operation of the machine, reduce noise, increase printing speed, save paper, and reduce costs. In addition, the problem of deformation of the drum is also solved, and the printing quality is improved, which is also a development trend.

4. Application of Single Fluid Technology (Waterless Offset Technology)

Waterless offset printing technology simplifies the ink path, there is no problem of ink and water balance, solves the problem of water deformation of paper, and can stabilize and improve the quality of printed matter. The application of a waterless plate enables the application of a single fluid technology. During printing, water and ink are mixed at high speed to form a mixed ink. The inkless ink inking device is evenly transferred to the printing plate, and the excess mixed ink is sent back to the circulation system for reuse. This technology can not only increase production efficiency, but also reduce scrap rate.

5. Further improvement of automation of printing equipment
The degree of automation of the web offset press is further improved, the mechanical structure is simpler, and the original mechanical structure and function will be replaced by more advanced electronic devices such as electronic cams and electronic gearboxes. The automatic degree of the existing automatic overprinting system, automatic paper threading system, cutting and registering system, ink tracking system, etc. will be further improved.

Improve post-press equipment to help newspaper industry development
Postpress auxiliary devices such as inserters, stackers, automatic strapping machines, keel conveyor lines, and postal equipment will be further improved.

1. Interception equipment
Due to the rapid development of the newspaper industry and the demand of the market, newspapers have more and more pages, some dozens of editions, and even hundreds of editions. And printed by a number of printing lines or successively printed. In order to solve the problem of difficulty in distribution, the high-speed "insert (page)" equipment has appeared in conjunction with the accumulation, transmission, and distribution after printing, such as the roller interleaving equipment of Federer of White Group, Sweden. The Thorsted A855 high-energy inserter produced by Schur is flexible and can meet a variety of reporting requirements.

2. Keel conveyor line
The function of the newspaper keel is to transfer the newly printed newspaper from the printing press to the post office in a reliable, concise, fast and soft manner. This requires a perfect combination of parts between the keel system and the newspaper delivery room. The newspaper keel system should have the requirements of short start-up time, easy operation, large print volume, and small consumption. The improvement of keel conveyor system in domestic newspaper printing factories is imminent.

3. Intelligent email system
The increase in the printing volume of newspapers has caused newspaper companies to face issues of distribution. The newspaper's smart postal system can be said to be the best solution to this problem. The newspaper intelligent postal system refers to newspapers that come out of the printing press and under the control of the computer, according to the size of newspaper delivery in the delivery area (even to a certain newspaper outlet), automatic counting, automatic stacking, and automatic binding of newspapers, and according to newspaper type Depending on the number and the issuing area, a bar code label printed on the paper is affixed to the bundle, and after being identified by the barcode scanner, it is directly conveyed by the conveyor belt to the pre-installed loading port. The entire production process of the newspaper smart postal system is basically fully automatic. It is only necessary to prepare the data statistics before production and send it to the next few levels of online control computers through the workstation computer, such as point accumulation control computers and barcodes on newspaper production lines. The label printing control computer and the control computer of the loading port can operate synchronously with the printing press to realize the stream printing work such as newspaper printing and loading.

However, few domestic newspaper companies have installed mail systems, and they are still incomplete. The installation of the postal service system requires a lot of investment, and it requires venues, transportation and export, etc. It also requires absolute modernization and data management.

The automatic mailing system put into use by the Yangcheng Evening News Printing Center on October 1, 2002, is connected to the press outlets of five printing presses, and introduces a package stacking and distribution control system to enable continuous stacking of standard and non-standard stacks. Packing operations, automatic distribution of postal routes based on pre-determined distribution routes, double the distribution speed by hand. The entire system requires only three or four operations and monitoring personnel, completely changing the situation of traditional manual distribution of newspapers.

The application of new technologies and the development of newspapers, the development of new technologies and the application of newspapers are an interactive process. With advanced and efficient technical means, the newspaper product quality and service level can be greatly improved. The change in the newspaper industry's work and business model puts forward higher requirements for the development of technology, and also provides the demand and market for the development of new technologies. This is a virtuous circle and the only way for the development of China's newspaper industry.

Source: Coinprint