Printing was invented in China. Since the ninth century printed books appeared in China, printing has spread from China all over the world. The invention and development of the printing press played an important role in the spread of human civilization and culture. So what are the classification of printing machinery and equipment?
There are many types of printing equipment, which can be classified according to the following five aspects:
According to the layout type, 1. can be divided into: letterpress printing machine, lithographic printing machine, gravure printing machine, hole plate printing machine;
2. according to the size of the printing paper is divided into: lithographic paper or sheet-fed printing machine, web printing machine;
3. according to the number of printing colors are divided into: monochrome printing machine, two-color printing machine, multi-color printing machine;
According to the printing format, the 4. is divided into: eight-open printing machine, four-open printing machine, split printing machine, full-sheet printing machine, super full-sheet printing machine, etc;
5., although there are many classification methods of printing presses, the core part of the printing press is the printing mechanism of the printing device. Therefore, according to the way of applying pressure, the printing press can be divided into three types: flat, round, round, etc.
Modern printing presses are usually composed of several structures: plate loading, ink, embossing and paper feeding. When it works, the printed words and images are first made into a printing plate, installed on a printing press, and then manually or using a printing press to apply ink to the printing plate where there are words and images, and then directly or indirectly transfer the ink to paper or On other substrates, the same printed products are copied.