Some old printers listened to the sound of the machine and knew that there was no problem with the machine. If there were problems, where did the problem lie? In fact, this is not a difficult task. So how can we achieve "sound and illness" in the operation of the printing press?
1. Learn to listen to sounds and remember normal sound characteristics
Taking the J2108 Offset Press as an example, in the normal production process, various sounds sing together, the main motor, air path, tooth decay, take-up chain, and the ink roller oscillating parts, oscillating parts, and even the oil circuit in the wallboard. Wait, these parts will make a sound. In such a complex voice, it is certain that there will be a certain degree of difficulty at the outset, but it can be gradually familiarized with in daily operations.
The first step: rough listening from local or single parts
For example, when the “running†is pressed, the main motor runs and sounds. After a certain delay, the main body is dragged to run. At this time, more sounds are emitted, and it is possible to listen to the corresponding parts. For example: ears close to the wall to listen to the sound of the moving parts in the reversal; open the "ink open" button, you can hear the swinging sound of the swinging parts; fall down - version - water roller or - version - ink roller It can hear the deep sound when the rubber roller jumps to the printing-printing-roller working surface; near the feeding tooth, you can hear the sound of delivery tooth and drum tooth, open and close the sound; open the paper feeding open. †button, you can hear the sound of Feida running; open the air pump, you can hear the gas road sound.
Step Two: Listen
This step of training is based on the familiarity with the mechanical components and their movement laws. The movements of the various components of the offset press have a strict time relationship. Therefore, it is necessary to listen according to the sound rhythm that each component plays when it moves. In the course of daily work, if the machine is operating normally, you can listen carefully to the ear, grasp a relatively easy-to-distinguish sound, and then listen to the sound of other parts based on the time of each part's movement.
For example, in the process of paper feeding, the sound of air blowing and inhaling and the sound of mechanical movement are intertwined. We can use the “click†sound of the paper suction nozzle overturning and the cylinder block as a symbolic sound during the whole operation process, and then the sound of the paper blowing under the pressure of the paper blowing nozzle is slight along with the paper. The dithering sound is followed by the sound of loose paper blowing from the mouthpiece. These sounds are periodically and rhythmically emitted. Another example is the delivery of teeth and roller cavities, the previous material used in the pad surface is nylon, are now steel, so the "click" sound is relatively large, especially when it is closed When picking up paper, this sound feature is more pronounced. Under normal circumstances, the sound of these two kinds of tooth decay is very neat, and the sound of the drum tooth decays, because the force of the roller tooth is larger than the tooth size of the delivery tooth. Listening to these sounds frequently and remembering the rhythm of the sound that these parts emit when they work properly will be of great help in determining if the machine is working properly.
2. Use sound characteristics to determine machine failure
When we become familiar with various sound characteristics, we can use it to help production and judge to solve some practical problems.
Example 1: Judging the Printing Pressure
If the printing pressure is normal (pressure of 0.15 mm between printing plate and plate roller and blanket cylinder, 0.2 mm between blanket cylinder and impression cylinder), the impact between the three rollers is slight during the printing process Deep. Once the printing pressure increases, such as the increase in the thickness of the rubber liner, will produce a "click" sound, then we must re-measure the thickness of the liner and even the size of the center distance, to ensure the accuracy of the pressure. The squeak-edition-rubber and print-edition-pressure are too large and similar sounds can be generated. This can be judged by checking the width of the ink bars.
Example 2: Judging the failure of paper feeding
In the production process, the sound produced by the paper feeder is very rhythm. With this rhythm, if the ear is heard, it can be judged whether the paper feeding condition is normal or not. If the suction nozzle does not absorb the paper, the leather ring breaks and the air leakage, the pressure of the paper blowing nozzle and the back suction nozzle fight will destroy the normal rhythm and cause abnormal sound. This is often a precursor to paper feeding failure. At this time, you must check and lose quickly. Paper machine work situation, to eliminate the fault in the bud, to ensure the smooth progress of paper.
Example 3: Judging a tooth decay
The closing sound of the feeding tooth and the drum cavities is very neat. When the machine is turned on, the machine speed is slow, and it is easy to hear the closed sound of “squeakingâ€. Although the sound is not loud, it is crisp, if the sound becomes blurred, It is advisable to check the working conditions of the large springs at both ends and whether the needle bearings are deficient in oil.
Example 4: Judging the oil circuit failure
If there is a shortage of oil or a blocked oil line, the sound inside the wallboard will increase, mainly due to the increased friction on the friction surfaces of the components. In winter, the temperature of the workshop is low, and the consistency of the lubricating oil becomes larger. When the machine starts to run, it will make a “click†noise. If the workshop has air conditioning, the temperature of the air conditioner can be increased. If this condition is not available, the number can be changed. Number of lower mechanical lubricants.
In short, as long as the operators are meticulously aware of the production process, especially the multi-color machines have more mechanical parts and sounds are more complicated, but as long as they are seriously summed up, they will surely hear the experience, find the rules, and do Sound diagnosis failure. The above personal experience will hopefully help everyone.
1. Learn to listen to sounds and remember normal sound characteristics
Taking the J2108 Offset Press as an example, in the normal production process, various sounds sing together, the main motor, air path, tooth decay, take-up chain, and the ink roller oscillating parts, oscillating parts, and even the oil circuit in the wallboard. Wait, these parts will make a sound. In such a complex voice, it is certain that there will be a certain degree of difficulty at the outset, but it can be gradually familiarized with in daily operations.
The first step: rough listening from local or single parts
For example, when the “running†is pressed, the main motor runs and sounds. After a certain delay, the main body is dragged to run. At this time, more sounds are emitted, and it is possible to listen to the corresponding parts. For example: ears close to the wall to listen to the sound of the moving parts in the reversal; open the "ink open" button, you can hear the swinging sound of the swinging parts; fall down - version - water roller or - version - ink roller It can hear the deep sound when the rubber roller jumps to the printing-printing-roller working surface; near the feeding tooth, you can hear the sound of delivery tooth and drum tooth, open and close the sound; open the paper feeding open. †button, you can hear the sound of Feida running; open the air pump, you can hear the gas road sound.
Step Two: Listen
This step of training is based on the familiarity with the mechanical components and their movement laws. The movements of the various components of the offset press have a strict time relationship. Therefore, it is necessary to listen according to the sound rhythm that each component plays when it moves. In the course of daily work, if the machine is operating normally, you can listen carefully to the ear, grasp a relatively easy-to-distinguish sound, and then listen to the sound of other parts based on the time of each part's movement.
For example, in the process of paper feeding, the sound of air blowing and inhaling and the sound of mechanical movement are intertwined. We can use the “click†sound of the paper suction nozzle overturning and the cylinder block as a symbolic sound during the whole operation process, and then the sound of the paper blowing under the pressure of the paper blowing nozzle is slight along with the paper. The dithering sound is followed by the sound of loose paper blowing from the mouthpiece. These sounds are periodically and rhythmically emitted. Another example is the delivery of teeth and roller cavities, the previous material used in the pad surface is nylon, are now steel, so the "click" sound is relatively large, especially when it is closed When picking up paper, this sound feature is more pronounced. Under normal circumstances, the sound of these two kinds of tooth decay is very neat, and the sound of the drum tooth decays, because the force of the roller tooth is larger than the tooth size of the delivery tooth. Listening to these sounds frequently and remembering the rhythm of the sound that these parts emit when they work properly will be of great help in determining if the machine is working properly.
2. Use sound characteristics to determine machine failure
When we become familiar with various sound characteristics, we can use it to help production and judge to solve some practical problems.
Example 1: Judging the Printing Pressure
If the printing pressure is normal (pressure of 0.15 mm between printing plate and plate roller and blanket cylinder, 0.2 mm between blanket cylinder and impression cylinder), the impact between the three rollers is slight during the printing process Deep. Once the printing pressure increases, such as the increase in the thickness of the rubber liner, will produce a "click" sound, then we must re-measure the thickness of the liner and even the size of the center distance, to ensure the accuracy of the pressure. The squeak-edition-rubber and print-edition-pressure are too large and similar sounds can be generated. This can be judged by checking the width of the ink bars.
Example 2: Judging the failure of paper feeding
In the production process, the sound produced by the paper feeder is very rhythm. With this rhythm, if the ear is heard, it can be judged whether the paper feeding condition is normal or not. If the suction nozzle does not absorb the paper, the leather ring breaks and the air leakage, the pressure of the paper blowing nozzle and the back suction nozzle fight will destroy the normal rhythm and cause abnormal sound. This is often a precursor to paper feeding failure. At this time, you must check and lose quickly. Paper machine work situation, to eliminate the fault in the bud, to ensure the smooth progress of paper.
Example 3: Judging a tooth decay
The closing sound of the feeding tooth and the drum cavities is very neat. When the machine is turned on, the machine speed is slow, and it is easy to hear the closed sound of “squeakingâ€. Although the sound is not loud, it is crisp, if the sound becomes blurred, It is advisable to check the working conditions of the large springs at both ends and whether the needle bearings are deficient in oil.
Example 4: Judging the oil circuit failure
If there is a shortage of oil or a blocked oil line, the sound inside the wallboard will increase, mainly due to the increased friction on the friction surfaces of the components. In winter, the temperature of the workshop is low, and the consistency of the lubricating oil becomes larger. When the machine starts to run, it will make a “click†noise. If the workshop has air conditioning, the temperature of the air conditioner can be increased. If this condition is not available, the number can be changed. Number of lower mechanical lubricants.
In short, as long as the operators are meticulously aware of the production process, especially the multi-color machines have more mechanical parts and sounds are more complicated, but as long as they are seriously summed up, they will surely hear the experience, find the rules, and do Sound diagnosis failure. The above personal experience will hopefully help everyone.
Ganas Selection Pro Strength Training Series Gym Equipment combines all the functional performance elements demanded from a strength line, with a focus on higher intensity and thoughtful design detail to appeal to a wide range of exercisers. The design of this series Gym Machine is 95% similar to the original of Italy. It pays much attention to empowerment balancing effect, comfortable touch points, and easy-to-use adjustments. With greater and preciser motion track, this G-60 Strength Training Series sport equipment are more humanized with a easy-start system and hydraulic system which can be push more than 200 thousand times, providing a perfect user experience and helps exercisers of all abilities benefit from the value of workout. This series exercise machines are equipped with 3 layers American Dupond Coating which prevents rusting,oxidation and wet. To complement your gym facility, every machine is durable, streamlined and intuitive.The result is an exceptional fit and feel for large fitness clubs and gym projects.
Selection Pro Series Strength Machine
Italy Design Gym Equipment, Gym Strength Machine, Club Gym Equipment, Gym Equipment, New Workout Equipment, Exercise Machine, Workout Equipment
Guangzhou Kangyi Sporting Goods Co., Ltd. , http://www.ganasgym.com