Correct use of rubber roller

1. Install the bearing correctly First of all, clean both sides of the rubber roller, and then select bearings with specifications and models that meet the design requirements of the machine, and apply a layer of lubricating oil evenly on each mating surface, and then use the special sleeve for mounting the bearing to evenly force the bearing. Make it smoothly installed in place. Never apply force directly to the bearing surface to avoid damage to the bearing. ?2. Regulate the pressure of the rubber roller During the printing process, the water roller and the ink roller must continuously and evenly provide an appropriate amount of water and ink to the printing plate, so as to obtain printed products with consistent ink color. Therefore, proper pressure must be maintained between the rubber roller and the rubber roller, between the rubber roller and the printing plate, in order to achieve good ink transfer. In order to ensure the pressure between the water roller and the ink roller, the width of the ink roller must be used, which mainly includes the following points. (1) Add appropriate amount of yellow ink evenly on the clean rubber roller, and then run the machine to make the ink evenly distributed on the surface of the ink roller. (2) Jog the printing machine to check the width of the press bar. It is worth noting that before checking the width of the press bar, the printing machine should be static for about 20 seconds, and then the press can be re-started. Clear pressure bar. (3) Priority should be given to adjusting the pressure between the inking roller and the inking roller, and then adjusting the contact pressure between the inking roller and the printing plate, and then adjusting the pressure between the other inking rollers respectively. (4) Refer to the operating instructions of the printing machine, the width of the pressing bar between the ink rollers is generally 4mm. But for ink rollers with smaller diameter and better elasticity, the appropriate width of the pressing bar is 3mm; On the contrary, the width of the pressing bar should be 5mm. (5) The width of the pressure bar between the water rollers should be 5~6mm. The pressure of the water roller to the metering roller should generally be such that the water film layer at both ends of the water roller just has no obvious water droplets. (6) When the pressure of all the water rollers and ink rollers is adjusted, the adjusting screws should be fixed in time to prevent the printing press from running out of position after rotating. ?3 Remove the rubber roller correctly Every time when the rubber roller is disassembled, the employees should coordinate and unify the adjustment screw to loosen 2 turns. When reinstalling the rubber roller, only need to tighten 2 turns in the opposite direction. Even if there is an error, it can be fixed quickly. At the same time, check the quality of each bearing. If it feels swaying, blocking, etc., it must be replaced immediately.