What is the Printing Press?

Machines for printing text and images. Modern printing presses generally consist of mechanisms such as plate loading, ink coating, embossing, and paper feeding (including folding). Its working principle is: first make the text and images to be printed into a printing plate, install it on a printing machine, and then apply ink to the printing plate where there are text and images by a human or a printer, and then directly or indirectly convert Printed on paper or other substrates (such as textiles, sheet metal, plastic, leather, wood, glass, and ceramics) to reproduce the same printed matter as the printing plate. The invention and development of the printing press played an important role in the spread of human civilization and culture.

Printing press

Machines for printing text and images. Modern printing presses are generally made up of

1.Classify by printing form

Divided into letterpress, lithographic, gravure, and stencil printing machines; mounting plates and embossing structures are divided into flat-bed flat, round flat-bed and round flat-bed presses

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1. Ensure that the lead plane is responsible for supervising the safety of machine equipment and crew operators.

2. Before work, the operator must dress the work clothes, work cap, and work shoes neatly, fasten the placket and cuffs, and the bag is not loaded with debris, and does not wear watches and various accessories.

3. Before starting the machine, add the required lubricating oil (grease) to each oiling point, lubrication point and oil tank of the machine.

4. Without approval, non-air crew members are not allowed to start and operate the machine. Assistants and apprentices should work under the guidance of the lead plane.

5. Before starting the machine, you should check whether there are debris in various parts of the fuselage. You must first give a signal (press the safety bell), echo back and forth, and ensure that the surrounding area of the machine is safe before you start the machine.

6. Before the machine runs, check the points for a few weeks, and then check the points for a few weeks, so that there is no debris between the rollers to damage the blanket, printing plate, etc.

7. During the operation of the machine, it is strictly forbidden to touch the moving working surface by hand, do not allow the machine to be repaired or wiped, do not cross the rotating part, and keep the machine's protective device intact.

8. The crew should strictly abide by the post according to the division of labor, pay attention to the operation of each part of the machine at all times, and immediately stop processing when any problems are found.

9. The work site should be kept tidy and unobstructed, and the ground. There should be no sundries around the workbench and the machine, and the maintenance tools and spare parts should be placed in the prescribed position.

10. During work, no one is allowed to laugh, make noise, or make loud noises around the machine. Please keep children close to the machine.

11. At the end of the work, clean the machine, protect the printing plate, scrub the blanket, impression roller and roller pillow, turn off the power, and fill in the work log.

12. Regular maintenance and repair of the machine, and filling in the maintenance and repair record data can extend the useful life of the machine, improve production quality and safe production.

13. Non-staff are prohibited to operate.

Various problems often occur during the use of printing presses, often causing damage to parts and frequent electrical failures. Some people say that the machine is too old. Although the old machine is an objective reason, does the new machine fail? Some printers have more new machines than old ones. Objectively speaking, the use and failure rate of the machine include the following factors: the manufacturing quality of the machine, installation and debugging, maintenance, reasonable operation, and most importantly, the quality of maintenance. The quality of the machine exists objectively when it leaves the factory. Whether it is a new machine or an old machine, installation and commissioning are the first key.

Generally, new machines are installed and debugged when they leave the factory. After quality inspection, they are shipped in split packaging. It's not just a question of level and proper installation, it's also a question of inspection and correction. The old machine should be more so. As for maintenance and use, I won't say much, just want to talk about the quality of maintenance:

Repair is not a simple disassembly, not only to find the cause of the failure, but also to find other problems associated with it.

The printing press has a strict time cooperation relationship, as well as assembly tolerances and adjustment values. Dismantling and overadjusting hurriedly are the main reasons for the accelerated wear of the machine and the failure again.

Purchasing and processing quality of spare parts. It is not necessary to use original spare parts for all parts and electrical components. Original parts have high costs and long procurement cycles. Unless special or critical spare parts, most other parts and electrical components can be replaced As long as you understand the part processing technology and component characteristics.

In addition to the natural damage to the machine, circuit faults are mainly hidden faults derived from careless removal or installation, or no machine or human factor causing the circuit failure.

Water tank fluid troubleshooting

The printing press is

1. Development status

According to statistics from the European Federation of Printing and Paper Processing Machinery Manufacturers Association (EUMAPRINT), due to the global economic downturn, the sales of printing machinery and equipment in seven countries, including Germany, France, the United States, Italy, and Switzerland, fell in 2002 compared to 2001. It was 13.08%. From the analysis of the economic prosperity index, only 11 countries including Europe, America, China, Russia, and Japan are on the rise, and the rest are falling. Among them, Germany's sales in 2002 were about 6.8 billion US dollars, which was higher than 2001. The annual sales decreased by 12%; the sales in the United States were approximately 2.27 billion US dollars, a decrease of 16% compared with 2001; the sales in the United Kingdom in 2002 decreased by 24% compared with 2001, which was approximately 1.064 billion US dollars; and the Italian sales were decreased by 8% That's about $ 763 million.

In 2001, the top five countries in terms of annual output value of printing machinery and equipment were: Germany's 7.73 billion US dollars, Japan 3.918 billion US dollars, the United States 2.702 billion US dollars, the United Kingdom 1.4 billion US dollars, and Italy 829 million US dollars. The top five countries for printing machinery and equipment exports in 2001 were: Germany 6.325 billion US dollars, Japan 1.578 billion US dollars, US 1.246 billion US dollars, Italy 1.06 billion US dollars, and UK 940 million US dollars. The top 6 imports of printing machinery and equipment in 2001 were: US $ 2.2 billion, China: US $ 1.3 billion, Germany: US $ 1.228 billion, Italy: US $ 922 million, UK: US $ 920 million, and Japan: US $ 798 million. In 2002, the Chinese printing machinery market flourished, and the sales of printing machinery and equipment increased by 13.8%, which has become a battleground for printing and equipment manufacturers in the world.