1. Factors related to print: paper, ink, water and pressure; From this, it can be seen that the relevant factors affecting the neatness of printing and unwinding are: paper feeder system, positioning system, water supply and ink supply system, imprinting system, paper transfer system, paper delivery system, and printing speed. Problems often arise from abnormal changes in related factors and changes in the relationship between them. Here we take a closer look at the results of the different combinations of the relevant factors that influence the orderliness of the prints and their abnormal changes: 1 Printing speed Printing speed is too high, it will produce flying paper phenomenon; speed is too low, then the print is not in place in the delivery system. Both of these will result in uneven publication. 2 Paper Feeding System The paper feeding system is unstable in the following two ways: too fast and too slow. If the paper is fed too fast, the large area of ​​the tusks may be torn; the paper feeding is too slow. When the dies are not detected, the functional elements of the paper transfer system cannot reach the paper. Paper delivery system. The two will inevitably produce a mishap. 3 positioning system positioning system consists of two parts: First, the former specified position, one is the side of the specified position. Before and after adjustment of the position of the front gauge will cause the transfer system to change the number of teeth. The front rule moves forward, and the occlusal caries are many; there is less displacement, and there are fewer blemishes. Too much gingival crepe paper tends to tear the mouth of prints; too few blister creases can easily cause paper to fall off. It can be seen that the changes in the position of the front and rear front and back must be within their normal range of change. The influence of the side-gauge on the neatness of the printed matter is mainly reflected in its time fit with the oscillator, its own lifting height and the pressure of the compression spring in the positioning process. The height of the lateral plane lift is less than 45°, which will cause the extension of the specified time on the side and the fall time to advance, shortening the time for the paper to reach the front gauge. In this way, it is highly probable that the paper will begin to be positioned on the side when it is too late to reach the front gauge. Since the positioned paper does not completely reach the front gauge, the paper transfer system will surely cause the paper drop phenomenon to occur. Lateral pressure springs have large pressure, and the rebound force after positioning is also increased accordingly, and uneven paper feeding will occur. Uneven paper feeding results in two results: one is paper drop, and the other is tearing of the print. After the positioning of the side profile is completed, the oscillating teeth of the oscillating device should have just been picked up. If the cavities are not picked up at this time, the paper in the free state is liable to produce a situation where the paper is not fed due to the rebound force, resulting in paper drop. On the contrary, there was a tearing of the mouth of the printed matter. In addition, due to the wear of the rolling ball, improper adjustment of the ball, or lack of tension of the tension spring, the wiggler may cause unstable creping, which may not only result in inaccurate front and rear printing rules, but also cause a paper-off phenomenon. 4-Press Printing System and Water Supply System The paper passes through the imprinting system, and the imprinted paper is electrostatically charged at the moment of imprinting and separating. The greater the imprinting force, the greater the static electricity. Printed materials will cause mutual exclusion of the two prints before and after the delivery system. At this time, the prints appear to be floating, and this will inevitably lead to the misplaced prints. The normal water supply of the water supply system can effectively solve the problem of electrified printed matter, which lays a solid foundation for neatly receiving the paper. 5 Normal Water Supply System of Water Supply System and Ink Supply System Although the static electricity supply problem can be solved effectively, the change of water supply quantity is often affected by the change of ink supply. Ink is large water, small ink is small. From this we can see that in order to effectively solve the static electricity problem of printed materials, the normal balance of ink and wash must be taken as the prerequisite. 6 Paper Transfer System The paper feed system has too small gusset angles and can't reach the paper, resulting in paper drop. The horizontal spacing between the two pads is too large at the instant of paper transfer. Too small will cause tearing. If the front functional unit has been refilled and the functional unit has not picked up, then a paper drop occurs. If the former is faster and the latter is slower, tearing occurs. In addition, the same function unit of the paper transport system, with no pressure between the cavities and the tooth pads, will inevitably fall out of the paper. If the pressure is too high, the cavities will produce rotten paper. 7 Paper-receiving system The paper-feeding system front and rear, left-right, and right-aligned paper pieces should be consistent with the paper specifications in order to ensure that the paper is received neatly. In addition, the rear suction wheel should ensure the stability of the printed matter in the suction state. If the print is not smooth, the subsequent chain hits the tip of the print to create a chaos. If the teeth of the chain are opened before the teeth are opened, the print will not be in place; if the teeth are opened late, a flying paper phenomenon will occur. In summary, the abnormal changes in the paper feeding system and the positioning system will cause the transfer system to reduce the number of dents; the abnormal changes in the imprinting system and the water supply and ink supply systems will cause the printed materials to be repelled due to charging; the transfer system The abnormal changes between the functional units ultimately manifest themselves as a change in the number of gummed papers; the abnormal changes in the function units of the delivery system show that the printed matter cannot be returned in order and the paper collection is not uniform. In the actual printing, the common performances of the printed matter are as follows: the paper is missing, there is a break in the mouth of the printed matter, and the print is repelled. The printed sheet is ejected by the subsequent chain. Manual Green Screen,Portable Green Screen,Tripod Green Screen,Green Screen Set Dongguan Aoxing Audio Visual Equipment CO.,Ltd , https://www.aoxing-whiteboard.com
2. Whether the printed matter can reach the delivery system is directly related to the printing speed, the paper transport system and the paper transfer system;
3. Whether the printed matter can arrive at the delivery system and the paper delivery system, the positioning system, the transfer system, the imprinting system, and the water supply system are directly related to whether they are in the optimal control state;
4. Whether the functional units of the paper delivery system are in the best condition are directly related to the functional units of the paper delivery system.
Analyze the relevant factors that affect the neatness of printed materials