A printing machine is a machine for printing words and images. Modern printing machines are composed of plate loading, inking, stamping and paper feeding (including folding). In order to meet people's demand for high-grade color printed matter, multi-color double-sided printing with 8 colors or even 10 colors and additional online post-press processing function have become the development trend of various sheet-fed offset presses (including small offset presses, DI direct plate-making machines and large offset presses).
The working principle of the printing machine is mainly to transmit power through the transmission mechanism, so that the ink scraper squeezes the ink and the screen printing plate in motion, and the screen printing plate and the substrate form an impression line. Because the screen has tension N 1 and N2, a force F2 is generated on the squeegee, so that the screen printing plate does not contact the substrate except the nip, and leaks from the moving nip to the substrate through the mesh.
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The requirements for the use of printing machines stipulate that:
1. Before operation, the operator must wear uniform, working cap and work shoes, fasten the skirt and cuffs, keep sundries that are easy to fall out in his pockets, and do not wear watches and various decorations.
2, the workplace should be kept clean and flat, the ground, workbench, machine around without sundry, maintenance tools, spare parts should be placed in the designated location. When working, no one is allowed to laugh, play or make loud noises around the machine, and please let children get close to the machine in a hurry.
3. After the work, clean the machine, protect the printing plate, scrub the blanket, impression cylinder and roller pillow, turn off the power and fill in the work log.
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