How to maintain the Adast offset press alcohol dampening system
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Alcohol dampening has become mainstream, so the maintenance of the alcohol dampening system is very important. How to properly use and actively maintain high-performance printing equipment and increase productivity is a problem that modern printing companies must pay attention to.
1 Cleaning of the water supply unit
The Adasite alcohol dampening system is different from the traditional dampening structure. The traditional plate-type water roller has a certain adsorption effect on the paper wool, dusting and ink during the printing process, and can adsorb these impurities to the water velvet. Set on. The water-repellent version of the water-repellent version of the water-repellent plate conveys the majority of the paper, powder and powdered rubber sticking to the water roller into the water bucket, and then returns to the water tank through the return pipe. In the middle, the wetting property of the dampening solution in the water tank is lowered, and in severe cases, the dampening solution becomes turbid, which causes the water pipe to block and affect the normal water supply of the water tank. Therefore, it is necessary to clean the water tank and the water tray regularly. Pay attention to the following points: (1) Clean the surface dust of each instrument in the control cabinet; (2) Check the filter screen of the upper and lower water pipes, and clean the water level detectors in the four unit water pans to ensure the smooth flow of water; (3) Check the filter in the water tank. If it is dirty or cleaned or replaced in time, check the water quality in the water tank and replace it if necessary. Clean the sediment in the water tank, clean the oil on the ball float; (4) Clean the dust on the air filter net of the refrigeration equipment; (5) Keep the water roller and the water transfer roller clean, so that it has a good transmission Water-based.
2 Motor and gear maintenance
The water roller motor is the power source of the water roller and has a long working time, so it is very important for the maintenance of the water roller motor. The water roller motor drives the load directly with the pressure of the water bucket roller and the water transfer roller. If it is overloaded, it will cause the body to become hot. In severe cases, the motor may be burned out. Therefore, when balancing the pressure between the water rollers, Make it as light as possible to reduce the load on the water roller motor. The gears should be regularly lubricated with grease to reduce wear and effectively protect the smoothness of the gear transmission. The bearings at both ends of the bridge roller should also be filled with grease regularly.
3 Normative operations
For printers who are new to the Adastist alcohol dampening system, it is necessary to have a detailed understanding of the various switch buttons and operational precautions. If it is not strictly regulated, major failures may occur. For example, there is a rotary button on the non-color group of the machine, which is used to control the test (Test) and automatic (AUT) status of each color group. During the printing process, if the knob is found in the Test position, it cannot be directly To switch to the AUT state, the machine must be stopped before switching the knob. This is because the water path is not activated during the test, the water roller is dry, there is no lubrication and the speed difference is large. At this time, the combined pressure of the waterway system is operated, and the frictional force at the moment of contact between the water roller and the metering roller is too large, which may cause the water roller to be broken. Therefore, the operator of the printing equipment must understand the specific meaning of each button and carry out the normative operation, in order to ensure the good use of the equipment.