Printing machine maintenance is divided into daily maintenance, weekly maintenance, monthly maintenance, quarter maintenance, annual maintenance, etc., where daily maintenance is done every day, the purpose of maintenance is to extend the service life of the equipment, indirectly saving the company's use cost. At the same time, maintenance of some printing equipment can also play a role in avoiding production accidents. A device that is not regularly maintained can easily cause major production accidents due to damage to local parts.
Here are some of the key points of the press maintenance:
First, the pressure roller
The pressure roller of the printing press is not clean, and the printing pressure is not uniform during the production process. It is common for the pressure roller to have tape or dry ink so that the height of the pressure roller becomes high, resulting in an increase in printing pressure. Common to quality accidents is that the printing is blurred and the article or pattern is not clear. Therefore, the pressure roller must be clean.
Second, the plate cylinder
The plate cylinder is not clean, which will affect the printing plate pressure and printing pressure during the production process. Commonly used cases are tape and dry-solid ink, as well as unevenness on the pad. This production will directly increase the height of the printing plate, resulting in inconsistencies in the printing plate, causing printing blur, unclear dots, and ghosting.
Third, each shaft and screw
Bearings and screw rods are mainly slotted units and paper feed units. The screw rods are not cleaned and refueled frequently, and the bearings are easily damaged, which affects the life of the screw rods and bearings and the precision of production. For example, if the pressure line bearing is often not oiled, it will easily generate vibration. When the vibration becomes larger, the pressure line of the carton will be blasted or the pressure line will be unreal. The maintenance of the screw and bearing is the most important part.
Fourth, the ground rail
The cleaning of the ground rail is the most easily overlooked. If the rails of the printing press are not clean for a long time, it will affect the parallelism of the printing unit. The non-parallel ground track of the unit directly affects the printing accuracy, so the high-end printing press has very high requirements on the ground track. Therefore, the ground track must be cleaned up daily.
5. Surface of anilox roller and ink tube
The anilox roller is the heart of the printing press. If the anilox roller is not clean, it will cause printing whiteness and inconsistent color. Therefore, the anilox roller must be cleaned and maintained daily, instead of being clogged and then maintained. The maintenance of the anilox roller is daily maintenance. When the anilox roller is not used, the cleaning solution or the washing powder water should be used for circulation cleaning, so that it can be cleaned daily to ensure the printing quality.
Sixth, the machine surface and the ground are cleaned above
The biggest impact of equipment cleaning is the stoppage and printing whitening. Many factory equipment surfaces are very clean, but the equipment and the ground are full of dust. These dusts can enter the ink or printing plate at any time during the production process, resulting in printing downtime and printing whitening.
The 6 aspects of the daily maintenance of the printing press are only part of it. Secondly, different equipment maintenance methods are formulated according to different equipments. If the equipment is not well maintained, the time for the printing machine to stop will increase, the equipment maintenance time will be reduced, and the printing will be reduced. The efficiency will also increase and the quality of the product will be improved and stabilized.
