The quality of prints depends to a large extent on the performance and accuracy of the equipment. Modern printing equipment is developing in the direction of high-speed, multi-color, multi-functional linkage and high degree of automation. Its mechanical structure is complex, with many parts and components, and it has strong linkage and high precision requirements. This puts forward the corresponding requirements for the maintenance and maintenance of the equipment, that is, the equipment must be carefully maintained, otherwise, it is difficult to guarantee safety, high quality and high output.
Must pay attention to the maintenance of the printing plate cylinder, the rubber cylinder and the impression cylinder. We know that, as the main body of the offset printing machine, once the cylinder is damaged, it will directly affect the printing quality of the product. Therefore, these main components are to be prevented from being scratched by hard objects and care must be taken to prevent foreign matter from passing through the impression cylinder.
Double-sheet control devices need to maintain more reliable sensitivity to prevent multiple sheets from damaging the surface of the blanket and its elasticity. Normally, the fastening state of all parts should be checked frequently to prevent screws, positioning pins, washers (pieces), bearings and other parts from being pulled off, pressed into the roller or bite the paper teeth; the printing pressure should be adjusted properly to avoid discomfort and damage caused by movement. gear. Roller shaft should maintain a good lubrication state, so as to avoid shaft head, bearing wear and reduce the accuracy of the machine, causing ghosting, imprinted hairs or demolition marks and other chain printing failures.
The paper-handling and positioning device is an important part to determine the precision of overprinting. It should always pay attention to observation and inspection, and do a good job of cleaning, eliminate ink or paper deposits in time, and ensure the accuracy of printing. The positioning pins and screws of the docking paper chain should be inspected frequently to prevent accidents caused by high-speed movements, vibrations and loose or broken.
Pay attention to the maintenance and maintenance of the water and ink roller. The water roller and the ink roller on the offset press adopt the rolling bearing as the shaft support to meet the high-speed operation of the machine. However, the bearing is easily splashed by the ink stain and the dampening solution to affect the normal lubrication, resulting in a biting phenomenon, which causes the bearing to be broken due to strong friction, and the ball is scattered, so that it is easy to crush the machine components. Therefore, the bearing on the roller should be coated with butter once a week to ensure that the bearing maintains good lubrication and prevent accidents.
Pay attention to the maintenance and maintenance of the feeder device, and to ensure that the normal degree of automation of the fed offset printing device depends on the paper feeding device. If the maintenance work is not in place, the components of the device are loose or damaged, which not only affects the quality of the paper feeding work, increases the loss of the paper, but also easily causes the important equipment accidents due to the loosened and peeled parts to move the impression cylinder with the movement of the paper. . Therefore, Feida parts should be regularly checked and lubricated. Found signs of damage to parts should be repaired in a timely manner to prevent potential equipment accidents.
The routine maintenance of offset printing equipment should be done. The machine should be maintained in normal operation. Before each shift, it must be properly lubricated. For each lubrication point that requires manual oiling, various lubricants should be filled according to the instructions, and each oil pump should be inspected. The working conditions, and whether there are any obstructions in the oil pipes, should be handled in a timely manner if abnormalities are found. In addition, the amount of oil in the storage tank should also be checked and timely supplemented to ensure effective lubrication. For new equipment at the commissioning stage, the printing speed should not be opened too fast. A new machine after a week or two of operation should be replaced with a new one. The lubricating oil will be replaced at a later date depending on the operation of the machine. In daily production, safety bars, double-sheet detection control devices, and micro-switches for automatic control of various parts should also be checked to make them more reliable and ensure safe production. In addition, for machines operating at high speeds, it is necessary to carefully observe whether the motions of the various parts are coordinated and to check whether the sound of machine movement is normal. If an abnormal phenomenon is found or the temperature of the shaft and other parts exceeds 60 degrees Celsius, it shall be shut down in time for inspection and treatment.
Machine operators should regularly maintain and maintain the equipment. Because offset printing equipment is fast and consumes a lot, regular maintenance is an important part of improving equipment accuracy. Regular maintenance is the weekly or monthly shutdown for maintenance and maintenance. The main focus is to inspect and lubricate the oil holes in some concealed parts. Do a good job of checking and cleaning the paper feed, paper feeding device, and paper feeding unit. To inspect the water and ink roller bearings, it is found that the damage should be replaced in time. For fasteners for paper bite teeth, chain teeth and roller teeth, there are connectors and pins for the delivery chain. Check for looseness. In addition, it is necessary to observe and inspect the fixtures of printing plates and rubber cylinders, and find problems in time to eliminate potential accidents.
Periodic inspections and maintenance of the equipment by the mechanics are carried out every six months or once a year. With the cooperation of the operators, the parts of the machine are disassembled for inspection and the concealed lubricating parts are cleaned. Change the oil, if the rolling bearing should be cleaned regularly and add new grease. If the wear degree reaches 0.1mm, replace the new one immediately. In the process of repairing all moving parts, attention should be paid to loosening, clearance, wear, obstruction, and cracks, etc. Problems should be discovered and eliminated in a timely manner to ensure that the machine achieves reliable accuracy and guarantees normal operation and printing quality. Through regular maintenance and maintenance, not only can the safety factor of the equipment be improved, but also the service life of the equipment can be improved.
To sum up, the correct maintenance and maintenance of offset printing equipment in strict accordance with the equipment specifications and requirements is an important way to improve the precision and service life of the machine and ensure the safety production and printing quality. It is worthy of attention and attention. (Kang Qilai)
Must pay attention to the maintenance of the printing plate cylinder, the rubber cylinder and the impression cylinder. We know that, as the main body of the offset printing machine, once the cylinder is damaged, it will directly affect the printing quality of the product. Therefore, these main components are to be prevented from being scratched by hard objects and care must be taken to prevent foreign matter from passing through the impression cylinder.
Double-sheet control devices need to maintain more reliable sensitivity to prevent multiple sheets from damaging the surface of the blanket and its elasticity. Normally, the fastening state of all parts should be checked frequently to prevent screws, positioning pins, washers (pieces), bearings and other parts from being pulled off, pressed into the roller or bite the paper teeth; the printing pressure should be adjusted properly to avoid discomfort and damage caused by movement. gear. Roller shaft should maintain a good lubrication state, so as to avoid shaft head, bearing wear and reduce the accuracy of the machine, causing ghosting, imprinted hairs or demolition marks and other chain printing failures.
The paper-handling and positioning device is an important part to determine the precision of overprinting. It should always pay attention to observation and inspection, and do a good job of cleaning, eliminate ink or paper deposits in time, and ensure the accuracy of printing. The positioning pins and screws of the docking paper chain should be inspected frequently to prevent accidents caused by high-speed movements, vibrations and loose or broken.
Pay attention to the maintenance and maintenance of the water and ink roller. The water roller and the ink roller on the offset press adopt the rolling bearing as the shaft support to meet the high-speed operation of the machine. However, the bearing is easily splashed by the ink stain and the dampening solution to affect the normal lubrication, resulting in a biting phenomenon, which causes the bearing to be broken due to strong friction, and the ball is scattered, so that it is easy to crush the machine components. Therefore, the bearing on the roller should be coated with butter once a week to ensure that the bearing maintains good lubrication and prevent accidents.
Pay attention to the maintenance and maintenance of the feeder device, and to ensure that the normal degree of automation of the fed offset printing device depends on the paper feeding device. If the maintenance work is not in place, the components of the device are loose or damaged, which not only affects the quality of the paper feeding work, increases the loss of the paper, but also easily causes the important equipment accidents due to the loosened and peeled parts to move the impression cylinder with the movement of the paper. . Therefore, Feida parts should be regularly checked and lubricated. Found signs of damage to parts should be repaired in a timely manner to prevent potential equipment accidents.
The routine maintenance of offset printing equipment should be done. The machine should be maintained in normal operation. Before each shift, it must be properly lubricated. For each lubrication point that requires manual oiling, various lubricants should be filled according to the instructions, and each oil pump should be inspected. The working conditions, and whether there are any obstructions in the oil pipes, should be handled in a timely manner if abnormalities are found. In addition, the amount of oil in the storage tank should also be checked and timely supplemented to ensure effective lubrication. For new equipment at the commissioning stage, the printing speed should not be opened too fast. A new machine after a week or two of operation should be replaced with a new one. The lubricating oil will be replaced at a later date depending on the operation of the machine. In daily production, safety bars, double-sheet detection control devices, and micro-switches for automatic control of various parts should also be checked to make them more reliable and ensure safe production. In addition, for machines operating at high speeds, it is necessary to carefully observe whether the motions of the various parts are coordinated and to check whether the sound of machine movement is normal. If an abnormal phenomenon is found or the temperature of the shaft and other parts exceeds 60 degrees Celsius, it shall be shut down in time for inspection and treatment.
Machine operators should regularly maintain and maintain the equipment. Because offset printing equipment is fast and consumes a lot, regular maintenance is an important part of improving equipment accuracy. Regular maintenance is the weekly or monthly shutdown for maintenance and maintenance. The main focus is to inspect and lubricate the oil holes in some concealed parts. Do a good job of checking and cleaning the paper feed, paper feeding device, and paper feeding unit. To inspect the water and ink roller bearings, it is found that the damage should be replaced in time. For fasteners for paper bite teeth, chain teeth and roller teeth, there are connectors and pins for the delivery chain. Check for looseness. In addition, it is necessary to observe and inspect the fixtures of printing plates and rubber cylinders, and find problems in time to eliminate potential accidents.
Periodic inspections and maintenance of the equipment by the mechanics are carried out every six months or once a year. With the cooperation of the operators, the parts of the machine are disassembled for inspection and the concealed lubricating parts are cleaned. Change the oil, if the rolling bearing should be cleaned regularly and add new grease. If the wear degree reaches 0.1mm, replace the new one immediately. In the process of repairing all moving parts, attention should be paid to loosening, clearance, wear, obstruction, and cracks, etc. Problems should be discovered and eliminated in a timely manner to ensure that the machine achieves reliable accuracy and guarantees normal operation and printing quality. Through regular maintenance and maintenance, not only can the safety factor of the equipment be improved, but also the service life of the equipment can be improved.
To sum up, the correct maintenance and maintenance of offset printing equipment in strict accordance with the equipment specifications and requirements is an important way to improve the precision and service life of the machine and ensure the safety production and printing quality. It is worthy of attention and attention. (Kang Qilai)
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