2. Calculation and construction method of foundation If the geology of the production workshop is soft, the printing machine should dig deeper, that is, dig 23 meters deep from the ground, fill in the pebbles and sand, fill in the above After pouring on the concrete and smoothing the surface, it can be done. The foundation of the printer base has a sufficient bearing strength of about 3t/m. The area of ​​the foundation can be slightly larger than the area of ​​the bottom of the printer.
When calculating the pressure of the printing machine on the ground, the total weight of the machine should be divided by the bottom area of ​​the machine. The calculated value is only the static pressure of the printing press to the foundation. Since the foundation will also generate shock vibration when the machine is running, the calculated data should be increased by about 20% to determine the pressure of the foundation.
3, the installation of the machine on the machine seat should pay attention to matters should be completely dry after printing the foundation can be moved to the machine base for installation and commissioning. Installation and commissioning is a meticulous task. Before and after, left and right, vertical and horizontal parts of the machine, it is necessary to adjust the balance with the level meter repeatedly to make the whole machine in a horizontal state. The padding used at the bottom of the machine must use iron plates with good compressive strength so that the base can be as tight and uniform as possible, without leaving a large-area, “floating†condition to prevent deformation under pressure. After the machine is calibrated horizontally, it is necessary to apply a good base screw, and each time the screw is subjected to a uniform force. If the force is uneven, the level of the machine is easily damaged. After the installation of the machine after a few weeks or months of operation, should be re-checking the level of its state, or the current deflection should be relatively flat in time to prevent the machine from skewing and lead to component wear and reduce the accuracy of the equipment.
Third, the printing machine should pay attention to the trial operation issues 1, the preparatory work to do a good job before the trial operation of the machine is an important work, before this detailed and serious inspection and cleaning of the machine: Printing machine Whether the parts of each part are intact, screws, nuts, pins are good; whether the gear box, oil hole and other parts of the ink meet the requirements of the manual; after manually turning the machine for a few turns, see whether there is any jamming in each part Phenomenon; whether the on-board safety interlocking device and the micro-motion range switch are reliable and sensitive; whether the gas system is normal or not. In addition, the debris around the machine must also be fully cleaned and finally powered on.
2. Working essentials during test operation When the machine has been manually operated for several weeks, after confirming that there is no abnormal condition, the machine can be operated for several weeks with low-speed jogging, and observe whether the movement of each component is normal or not. Blocking phenomenon and abnormal sound, then you can run the test at low speed. In the meantime, attention should be paid to the abnormality of the sound and lubrication conditions; whether there is excessive temperature rise in the rotating shaft parts; whether the dynamic braking is sensitive and reliable; and whether there is any abnormality in the shift from the lost motion to the combined pressure operation. After several hours of continuous test run from low-speed operation to high-speed pressure-compression operation, the moving parts of the machine are run in, eliminating some burrs on the parts and reducing the resistance of the machine during operation. During the test run, check the working status of the paper feeding components. Check whether the feeding time of the paper feeding device, the rules, the paper handing teeth, and the roller teether are accurate. Check if the suction and air blowing on the air pump and its printing machine are appropriate. Whether double-sheet or air-sheet control is sensitive, if there is something abnormal, it should be adjusted and handled in time.
3. Conduct printing test to master the work performance and characteristics of the printer. The trial printing work is an important part of exploring the work quality and production efficiency of the printer, as well as the attention that should be paid to the operation. The paper used in the trial printing is preferably stencil or coated paper. The paper requires good flatness and uniform thickness. The cutting specifications should be consistent. The edges of the paper should be straight and square, so that the printing can be accurate when the printing quality occurs. Judgment is a paper issue or a device issue. When testing, the packing material and thickness should be strictly in accordance with the specifications of the equipment, the printing pressure should be uniform, and the thickness of the ink layer should be appropriate. The printing plate structure used for the trial printing is preferably an anilox or five-character text version. It is printed on the same ink, the same ink layer (appropriately thinner) and printing speed, and printed twice in succession (normal printing speed). Layout registration conditions to assess the transfer of various parts of the printer and whether the lining is appropriate; the rules are stable and accurate. After trial printing, it is confirmed that the machine can be installed and adjusted without problems before it can be mass-produced.
When calculating the pressure of the printing machine on the ground, the total weight of the machine should be divided by the bottom area of ​​the machine. The calculated value is only the static pressure of the printing press to the foundation. Since the foundation will also generate shock vibration when the machine is running, the calculated data should be increased by about 20% to determine the pressure of the foundation.
3, the installation of the machine on the machine seat should pay attention to matters should be completely dry after printing the foundation can be moved to the machine base for installation and commissioning. Installation and commissioning is a meticulous task. Before and after, left and right, vertical and horizontal parts of the machine, it is necessary to adjust the balance with the level meter repeatedly to make the whole machine in a horizontal state. The padding used at the bottom of the machine must use iron plates with good compressive strength so that the base can be as tight and uniform as possible, without leaving a large-area, “floating†condition to prevent deformation under pressure. After the machine is calibrated horizontally, it is necessary to apply a good base screw, and each time the screw is subjected to a uniform force. If the force is uneven, the level of the machine is easily damaged. After the installation of the machine after a few weeks or months of operation, should be re-checking the level of its state, or the current deflection should be relatively flat in time to prevent the machine from skewing and lead to component wear and reduce the accuracy of the equipment.
Third, the printing machine should pay attention to the trial operation issues 1, the preparatory work to do a good job before the trial operation of the machine is an important work, before this detailed and serious inspection and cleaning of the machine: Printing machine Whether the parts of each part are intact, screws, nuts, pins are good; whether the gear box, oil hole and other parts of the ink meet the requirements of the manual; after manually turning the machine for a few turns, see whether there is any jamming in each part Phenomenon; whether the on-board safety interlocking device and the micro-motion range switch are reliable and sensitive; whether the gas system is normal or not. In addition, the debris around the machine must also be fully cleaned and finally powered on.
2. Working essentials during test operation When the machine has been manually operated for several weeks, after confirming that there is no abnormal condition, the machine can be operated for several weeks with low-speed jogging, and observe whether the movement of each component is normal or not. Blocking phenomenon and abnormal sound, then you can run the test at low speed. In the meantime, attention should be paid to the abnormality of the sound and lubrication conditions; whether there is excessive temperature rise in the rotating shaft parts; whether the dynamic braking is sensitive and reliable; and whether there is any abnormality in the shift from the lost motion to the combined pressure operation. After several hours of continuous test run from low-speed operation to high-speed pressure-compression operation, the moving parts of the machine are run in, eliminating some burrs on the parts and reducing the resistance of the machine during operation. During the test run, check the working status of the paper feeding components. Check whether the feeding time of the paper feeding device, the rules, the paper handing teeth, and the roller teether are accurate. Check if the suction and air blowing on the air pump and its printing machine are appropriate. Whether double-sheet or air-sheet control is sensitive, if there is something abnormal, it should be adjusted and handled in time.
3. Conduct printing test to master the work performance and characteristics of the printer. The trial printing work is an important part of exploring the work quality and production efficiency of the printer, as well as the attention that should be paid to the operation. The paper used in the trial printing is preferably stencil or coated paper. The paper requires good flatness and uniform thickness. The cutting specifications should be consistent. The edges of the paper should be straight and square, so that the printing can be accurate when the printing quality occurs. Judgment is a paper issue or a device issue. When testing, the packing material and thickness should be strictly in accordance with the specifications of the equipment, the printing pressure should be uniform, and the thickness of the ink layer should be appropriate. The printing plate structure used for the trial printing is preferably an anilox or five-character text version. It is printed on the same ink, the same ink layer (appropriately thinner) and printing speed, and printed twice in succession (normal printing speed). Layout registration conditions to assess the transfer of various parts of the printer and whether the lining is appropriate; the rules are stable and accurate. After trial printing, it is confirmed that the machine can be installed and adjusted without problems before it can be mass-produced.
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