What Are The Causes Of Abnormal Damage To The Rubber Roller?

In the normal use process, the rubber roller often suffers from damage of the roller body or the rubber surface, accumulation of ink or ink slag impurities, heat expansion, iron core husking, wear and aging, surface scratching, etc., and these damages are great causes. All are caused by abnormal use. To avoid such abnormal damage, you need to find the root cause of the problem.

The first one: The simplest and most direct is that the roller or rubber surface of the rubber roller is damaged. This is mostly because the handling and disassembly process is not handled gently. In order to avoid damage to the rubber gel, it should be handled gently during installation and disassembly.

The second type: the shaft head of the rubber roller and the bearing are not tightly matched, and the poor performance of the bearing will accelerate the friction and extrusion between the rubber rollers, causing the roller body to be covered with numbness, and the water cannot be accurately transferred and the ink is transferred. It is therefore necessary to ensure that the shaft head and the bearing are tightly fitted to maintain good bearing performance and reduce friction and crushing.

The third type: the ink on the rubber roller, ink residue and other impurities pile up too much, increase the friction, so that the rubber roller premature aging, will shorten its service life, so it needs regular cleaning. If the cleaning solution is improperly selected during cleaning, the surface will be deteriorated, and cracks and slag will occur. Therefore, it should be cleaned with a suitable cleaning solution. Do not use aggressive cleaning solutions such as gasoline, reducing agent, strong acid or alkali. Cleaning.

   The fourth type: the temperature of the production workshop should not be too high, otherwise the rubber roller will be difficult to dissipate in time during the operation. The temperature will accumulate in the rubber, which will cause the temperature to rise, which will not only accelerate the aging of the rubber, but also cause the rubber to heat up and expand once the rubber If the heat expands, it will cause the rubber core to be unshelled, so that the pressure between the rubber rollers is too large, and the extrusion deformation cannot be separated, which eventually causes it to be scrapped. Therefore, the temperature should be properly controlled during use.

    When the rubber roller is used in the printing industry, the ink should be cleaned in time. If it is not cleaned in time, the pressure between the rubber rollers will be increased in disguise, which will accelerate its wear and aging.

    Many multi-color printing presses have fewer color numbers of a certain printing product, causing the rubber rollers of other color groups to be unable to replenish the ink for a long time and rotate empty, causing damage in the dry friction state; if there is no ink on both ends of the ink fountain Putting the ink on will also cause it to be damaged due to long-term dry friction. Therefore, the key to solving this problem is to put the ink on both ends of the ink fountain to ensure that it does not rotate. If the plate is not pulled into the splint, the plate holder will be in a broken state. Generally, the surface of the plate will be scratched when it is close to the plate cylinder, causing it to be scrapped.