1. According to the type of printing, it is divided into convex printing machines, flat printing printed machines, concave printing machines, and hole version printing machines.
2. According to the size of the printing area, it is divided into miniature eight -open printing machines, small four -opening printing machines, open printing machines, full printing machines, and dual -full printing machines.
3. According to the form of printing paper, it is divided into single paper printing machine and roll paper printing machine.
4. Printing the color printing machine, multi -color (two -color, four -color, five -color, six -color, eight -colored) printing machine according to the printing color.
5. It is divided into single -sided printing and double -sided printing machine according to the printing surface.
In various printing machines, although there are many classification methods, the form of pressure is summarized as three types: Platen Machine, Flat-Bed Tylinder Press, Rotary Letterpress Machine.
1. Pinglin flat printing machine
The flat -pressure flat printing machine is a printing machine with a printing mechanism and the installation agency. When printing, the printing version is fully contacting the printing mechanism at the same time. For a long time, the product is bright and full of images, but it requires strong pressure, so this type of printing mechanism is not suitable for large printing machines.
The flat -pressure flat printing machine is limited to slightly surface printing, generally less than four open, the machine volume is small, the printing speed is slow, and the production efficiency is not high. Products, etc. Such machines include: disc printer, square box printing machine, and book prototypes.
Second, round pressure flat printing machine
The round -voltage flat printing machine is a printing machine with a plane -shaped printing mechanism with a plane -shaped printing mechanism. When the printing is pressed, the platform moves under the printing mechanism, and the printing mechanism drives the printed rotation in a fixed position to achieve printing. During printing, the printing cylinder and printing plane are not face -to -face contact, but line contacts, so the total printing pressure is small, the printing surface can be larger, the printing speed is faster than the flat pressure flat printing machine, which is relatively improved, which is relatively improved, which is relatively improved, which is relatively improved. The printing efficiency of the machine, but due to the reciprocating motion, the printing speed is still limited. Now this type of printing is commonly used in convex printing. This type of printing machine has a convex version of the convex version of the transit printing machine, a second -time convex convex printing machine, a stop convex printed machine, a flat -version prototype, and a carved concave printing machine.
Third, round pressure and round printing machine
Both the printing mechanism and the loading mechanism are a round -shaped printing machine. The roller of the printing mechanism is called the printed roller, and the drum of the loading mechanism is called the printing version of the roller. When the printing, the printed roller and the printing roller are constantly peripheral movement. Instead, the direction is rotated and printed printed.
This printing machine uses the line contact of the two drums for pressure printing. Not only is the structure simple, but also the exercise is relatively stable. It avoids the inertial impact generated by the reciprocating movement, which can improve the printing speed. Double or multi -color printing is an efficient printing machine. These printing machines include: rotation machines, flat versions, concave printing machines, and flexible version of printing machines of printing newspapers and books.
