The copying machine is a device that uses a vacuum adsorption method to close the film by exposing the positive image or negative image on the negative film to the photosensitive material film.
The photosensitive sheet obtained by a plate-making camera or electronic color separation machine is processed by manual development and development by a developing machine to become a negative film with an original image. In addition, sulfuric acid paper and a film obtained from a computer system such as Founder and Apple have two In one form, one is a continuous tone chart and a positive chart, and the other is a halftone chart with positive and negative dots. According to the different requirements of the printing platemaking process, it is often necessary to use a copy machine to complete. Such as continuous adjustment of the positive map (negative) reverse copy into negative (positive), continuous tone adjustment can be linked to the net copy of the net positive map, the production of 1:1 color separation, multiple copies of offset printing. In general, the purpose of copying is to achieve the reverse of the Yin and Yang diagrams on the one hand, and on the other hand to make appropriate corrections to the tone level or the dot shape and size of the original negative film, and to use the light and exposure of the copying machine. Time to process the halftone dot and continuous tone on the film of Yin and Yang in order to achieve the fine level to meet the ideal requirements of printing plate making. At the same time, it is also able to convert multiple small patterns into large format. Negative film.
The quality of a duplicator product depends on two factors: The first is whether the vacuum pumping system of the duplicator can make the film and the photosensitive material film close to each other without leaving any gap; secondly, the whole layout of the printing medium is exposed. The illuminance at the periphery of the perimeter is even.
The duplicator used in our factory's roller shutter rolling structure is produced by Shanghai Printing Equipment Manufacturing Factory. The model is KB1000 split duplicator. This duplicator adopts rolling pad rolling structure with rubber pad, so it is not necessary to open the frame and operate it. Bring convenience, the copy of the original and the need to expose the film with a roller roller roller compaction device, and then close the vacuum suction, to achieve close contact, so the film will not be dislocated, ensuring the quality of the copy image. In the actual work of this machine, it often happens that the relevant electrical equipment, transmission system, contact limit and other components of the rubber roller blind curtain structure device are easy to go wrong.
The automatic operation procedure of the copying machine with rubber roller shutter rolling structure is: put the positive and negative pictures that need to be copied on the glass plate of the copy machine, press the blanket and automatic operation button, and cover the blanket at this time. The motor drives the relay to pull in. The blanket covers the drive motor (synchronized low-speed motor specification 110 TDY). The work transfer power is started. The rubber belt reel structure device and the film pressure roller device are all driven to cover the spread of the blanket. The contact eye position on the copy machine moves along with the blanket pad shutter structure device, and the contact limit at this time will hit the contact of the limit switch of the receiving blanket, the circuit is connected to the vacuum pump, and the suction starts timing. After the film and the film are closed, the exposure time relay works and counts down to zero according to the set number. After the exposure time is over, the rubber cloth button is started, the vacuum pump stops working, the rubber returns to its original position, and the copy ends.
The copying machine covers the blanket and the receiving blanket during the copying process. Frequently, the covering blanket and the receiving blanket are driven by a low-speed synchronous drive motor, and the chain-type mechanical transmission power is used to fix the chain. A contact limit device was used to control the distance between the cover and the blanket travel area. The limit switches that covered the blanket limit switch and the rubber blanket were installed at both ends of the copying machine. The copying machine was used for a few years and was the easiest. The faulty component is in the work program area covering and receiving the blanket. The copying machine has been used for a long time. When there is always a bad time, the copying machine uses a low-speed synchronous drive motor. However, the transmission power is the chain transmission method. Chain transmission is a medium-distance transmission, can only transmit about 85% of the energy, in the process of energy transfer is consumed, (in the power transmission gear and worm gear transmission of power energy consumption is lowest) after the use of the chain is easy to lengthen the deformation, due to The disadvantages of the chain drive make the contact limit device installed on the chain not hit the contact of the limit switch that covers and receives the blanket. For example, if the chain conveys faults when covering the blanket roller blind, the limit device on the chain will not be able to hit the limit switch contact of the receiving blanket. At this time, the copying machine will not automatically perform vacuum suction. The following work program will stop.
In our work, we must always adjust the tightness of the chain and try to tighten some of them. In addition, the contacts of the limit switch on both ends of the cover and the cover of the blanket shutter (in the same shape as the stroke switch contact) are appropriate or not. Due to the use of many months and months, frequent contact impact limiter will crash the contact of the limit switch of the roller blind and cover. If the position of the limit switch contacts at both ends is low, the contact limit is not reached. In this case, the copying machine cannot work normally, and often has problems such as non-stoppage, no vacuum suction, and crash of equipment. In our work, we always observe and close the contact of the limit switch of the blanket shutter, lift it up and raise the position of the contact. There is a telescopic spring moving up and down under the contact of the limit switch. It can be adjusted for use. At the same time, we must always check whether the parts with fixed contact limit on the chain have been deformed by collision, and whether the two screws that tighten the contact limit are loose and must be tightened if loose. But also regularly add butter to the chain to keep the chain lubricated.
All in all, the most difficult parts of the film copying machine of the roller shutter rolling structure of the rubber pad are: 1 whether the limit switch contacts of the rolling shutter of the rubber pad are knocked down; 2 whether the contact limit on the chain is fastened , was impacted and deformed; 3 whether the chain is not tight, power transmission problems. In the course of work, failures encountered in this area must be comprehensively analyzed to find out the cause of the mechanical failure and to solve the problem.
Like other devices, the copy machine must be properly maintained in daily work in order to remain in good working condition for a long time. The oil and gas system should be inspected regularly. The vacuum pump should be inspected once a month. Vacuum oil should be regularly added. The oil level should always be aligned with the oil level. If you replace the new oil once a year, the inhaled rubber pipeline must also be torn down. Remove and keep the suction hose free from dust and debris. Glass table surface must be absolutely clean, no dust, hair, ink, dirt, wipe with a soft brush first clean, then with medical absorbent cotton, gauze and anhydrous alcohol wipe clean, the machine's point light source, reflective glass also Always stay spotless.
Exposure light source (halogen tungsten lamp 24V, 150W) is replaced at regular intervals. The light source is used for a long period of time. The luminous intensity and brightness difference are not easy to control the exposure time.
The photosensitive sheet obtained by a plate-making camera or electronic color separation machine is processed by manual development and development by a developing machine to become a negative film with an original image. In addition, sulfuric acid paper and a film obtained from a computer system such as Founder and Apple have two In one form, one is a continuous tone chart and a positive chart, and the other is a halftone chart with positive and negative dots. According to the different requirements of the printing platemaking process, it is often necessary to use a copy machine to complete. Such as continuous adjustment of the positive map (negative) reverse copy into negative (positive), continuous tone adjustment can be linked to the net copy of the net positive map, the production of 1:1 color separation, multiple copies of offset printing. In general, the purpose of copying is to achieve the reverse of the Yin and Yang diagrams on the one hand, and on the other hand to make appropriate corrections to the tone level or the dot shape and size of the original negative film, and to use the light and exposure of the copying machine. Time to process the halftone dot and continuous tone on the film of Yin and Yang in order to achieve the fine level to meet the ideal requirements of printing plate making. At the same time, it is also able to convert multiple small patterns into large format. Negative film.
The quality of a duplicator product depends on two factors: The first is whether the vacuum pumping system of the duplicator can make the film and the photosensitive material film close to each other without leaving any gap; secondly, the whole layout of the printing medium is exposed. The illuminance at the periphery of the perimeter is even.
The duplicator used in our factory's roller shutter rolling structure is produced by Shanghai Printing Equipment Manufacturing Factory. The model is KB1000 split duplicator. This duplicator adopts rolling pad rolling structure with rubber pad, so it is not necessary to open the frame and operate it. Bring convenience, the copy of the original and the need to expose the film with a roller roller roller compaction device, and then close the vacuum suction, to achieve close contact, so the film will not be dislocated, ensuring the quality of the copy image. In the actual work of this machine, it often happens that the relevant electrical equipment, transmission system, contact limit and other components of the rubber roller blind curtain structure device are easy to go wrong.
The automatic operation procedure of the copying machine with rubber roller shutter rolling structure is: put the positive and negative pictures that need to be copied on the glass plate of the copy machine, press the blanket and automatic operation button, and cover the blanket at this time. The motor drives the relay to pull in. The blanket covers the drive motor (synchronized low-speed motor specification 110 TDY). The work transfer power is started. The rubber belt reel structure device and the film pressure roller device are all driven to cover the spread of the blanket. The contact eye position on the copy machine moves along with the blanket pad shutter structure device, and the contact limit at this time will hit the contact of the limit switch of the receiving blanket, the circuit is connected to the vacuum pump, and the suction starts timing. After the film and the film are closed, the exposure time relay works and counts down to zero according to the set number. After the exposure time is over, the rubber cloth button is started, the vacuum pump stops working, the rubber returns to its original position, and the copy ends.
The copying machine covers the blanket and the receiving blanket during the copying process. Frequently, the covering blanket and the receiving blanket are driven by a low-speed synchronous drive motor, and the chain-type mechanical transmission power is used to fix the chain. A contact limit device was used to control the distance between the cover and the blanket travel area. The limit switches that covered the blanket limit switch and the rubber blanket were installed at both ends of the copying machine. The copying machine was used for a few years and was the easiest. The faulty component is in the work program area covering and receiving the blanket. The copying machine has been used for a long time. When there is always a bad time, the copying machine uses a low-speed synchronous drive motor. However, the transmission power is the chain transmission method. Chain transmission is a medium-distance transmission, can only transmit about 85% of the energy, in the process of energy transfer is consumed, (in the power transmission gear and worm gear transmission of power energy consumption is lowest) after the use of the chain is easy to lengthen the deformation, due to The disadvantages of the chain drive make the contact limit device installed on the chain not hit the contact of the limit switch that covers and receives the blanket. For example, if the chain conveys faults when covering the blanket roller blind, the limit device on the chain will not be able to hit the limit switch contact of the receiving blanket. At this time, the copying machine will not automatically perform vacuum suction. The following work program will stop.
In our work, we must always adjust the tightness of the chain and try to tighten some of them. In addition, the contacts of the limit switch on both ends of the cover and the cover of the blanket shutter (in the same shape as the stroke switch contact) are appropriate or not. Due to the use of many months and months, frequent contact impact limiter will crash the contact of the limit switch of the roller blind and cover. If the position of the limit switch contacts at both ends is low, the contact limit is not reached. In this case, the copying machine cannot work normally, and often has problems such as non-stoppage, no vacuum suction, and crash of equipment. In our work, we always observe and close the contact of the limit switch of the blanket shutter, lift it up and raise the position of the contact. There is a telescopic spring moving up and down under the contact of the limit switch. It can be adjusted for use. At the same time, we must always check whether the parts with fixed contact limit on the chain have been deformed by collision, and whether the two screws that tighten the contact limit are loose and must be tightened if loose. But also regularly add butter to the chain to keep the chain lubricated.
All in all, the most difficult parts of the film copying machine of the roller shutter rolling structure of the rubber pad are: 1 whether the limit switch contacts of the rolling shutter of the rubber pad are knocked down; 2 whether the contact limit on the chain is fastened , was impacted and deformed; 3 whether the chain is not tight, power transmission problems. In the course of work, failures encountered in this area must be comprehensively analyzed to find out the cause of the mechanical failure and to solve the problem.
Like other devices, the copy machine must be properly maintained in daily work in order to remain in good working condition for a long time. The oil and gas system should be inspected regularly. The vacuum pump should be inspected once a month. Vacuum oil should be regularly added. The oil level should always be aligned with the oil level. If you replace the new oil once a year, the inhaled rubber pipeline must also be torn down. Remove and keep the suction hose free from dust and debris. Glass table surface must be absolutely clean, no dust, hair, ink, dirt, wipe with a soft brush first clean, then with medical absorbent cotton, gauze and anhydrous alcohol wipe clean, the machine's point light source, reflective glass also Always stay spotless.
Exposure light source (halogen tungsten lamp 24V, 150W) is replaced at regular intervals. The light source is used for a long period of time. The luminous intensity and brightness difference are not easy to control the exposure time.
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