The installation of the printing plate should be in accordance with the specifications of the plate cylinder, and the appropriate lining paper can be printed to print the loyalty to the original. However, how to correctly and quickly correct the rules of the printing plate is a necessary technology for an entry technician. Today, thanks to the benefits of printing technology, after the successful development of the cross-rule punching device, a set of printing plates used to be adjusted by a skilled printing technician, it also took more than ten or twenty minutes to complete, but now it is greatly given Shortened, the principle of its invention is to integrate the proofreading technology that was previously regarded as the master's entry, that is, the proofreading work of the four-color cross-gauge line of the printing plate is moved from the narrow space of the printing plate to the outside. To a platform puncher, as long as the printing plate after punching is installed on the printing machine, the printing machine remote control positioning device can be used to make a slight adjustment to complete the calibration. It is very simple, but the calibration technology is also labor-saving. After the successful development of the chemical equipment, some traditional skills are gradually being ignored by the new generation of printing technicians. Here I will mention the proofreading technology again. Although it is somewhat contrary to the printing technology, the principle of plate design and proofreading technology are intriguing. Think past printers In addition to the sharp color discrimination ability, it must also have clever hands and feet, but the clever hands and feet can be known by the speed of its school edition, then this technology will naturally become the master ’s eating skills, and become a must-be for the general apprentices to practice before getting started. Important subjects. Let us discuss the principles of this one-version technology one by one!
First of all, we need to understand the number of threads of the screw on the plate clamp (screw), that is, the pitch. Usually, if the wrench is 17 or 19 as the calibration tool, the screws are mostly 0.75m / m, 1.0m / m, 1.25m / The pitch of m or 1.5m / m, but the design of the printing cylinder of the printing machine manufacturing company is different. The printing master does not randomly turn the proofing screw when making the plate correction. The master adjusts only according to his feelings but how to handle Yes, the key is that after you have finished reading this report, you are an introductory master (I did n’t want to learn before, and the master school ’s version time is afraid to be taken away and still take a rag to cover up) Example 17 Wrench For a screw of 0.75m / m, the screw rotates one revolution (one rev), which results in a displacement of 0.75m / m, and one angle rotation (one take) is 0.125m / m; then two revolutions (two rev) = At 12 angles (12 take), the printing plate is displaced by 1.5m / m. Understand this design principle, pay attention to the parallel principle of the printing plate (pull the bite and three take ) As long as you know the basics of the four operations, the correction of each set of plate layouts is calculated by the brain quickly and accurately, then the proofreading technology is no longer After rags his secrets.
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