Fifth, the function of the production management control system The control on the corrugating machine can be regarded as the function of the production management system, including automatic paper, on the side, gap adjustment, paste control, automatic paper, residual volume control, flyover control, synchronous walk Vehicles, single-control, control-rotary cutting machine, paper separator, cross cutting machine, paper stacker, etc. But for the most part, it can be divided into Wet End Control and Dry End Control. The control between the single-hole machine and the hot plate belongs to the wet-end control section, and after the hot-plate is released, it belongs to the cadre control section. In Europe and the United States, the production management control system separates the two parts, but in the domestic market, the two parts are combined and sold. Here, due to the space, it is impossible to introduce the entire control function one by one, and the common functions are explained and compared.
åŒæ¥ Synchronous walking: The so-called synchronization refers to controlling the speed of a single pit, which can be automatically followed by the main canvas vehicle speed. Its role is to prevent overbridges from tearing paper or stacking too much paper. A good control method should try to avoid too fast speed, because the speed change is too fast, prone to machine vibration, poor fit and other problems: At the same time, it will also produce an abnormal situation in which the speed of the vehicle oscillates up and down the main canvas speed.
â—‡ Automatic splicing: Automatic splicing is not only controlling the splicer to operate at an appropriate time. It also includes stacking, synchronizing, decelerating, tying, and maintaining synchronism until the splicing head enters the corrugating roller. The whole program. Divided by the timing of automatic splicing, it can be divided into End Or End and End Or Paper Roll.
湿 Wet paper change: When the wet part needs to change the paper material or replace the paper when changing the paper size.
纸 Paper roll change: When paper or core paper needs to be switched, the most common situation is that the paper roll is used up now and it needs to be changed to another paper roll.
Of course, paper roll change operations are more difficult than wet paper change because, in addition to automatically calculating the amount of paper used, mathematical calculus techniques are also used to calculate the paper thickness from the change in diameter, and then from the thickness and The diameter of the paper tube is used to calculate the current remaining length of the paper roll.
At present, except for several large manufacturers in Europe and the United States, there are only one or two companies in Asia that can accurately calculate the current remaining length of the paper roll and control the error within 3 meters.
â—‡ Bridge control: The control of the bridge not only avoids the problem of tearing the paper, but also affects the accuracy of the entire wet paper change and the automatic compensation of manual paper tearing. The reason is very simple. In the entire corrugating machine production line, except that the bridge paper is wavy and it is not easy to estimate, the distance from the base paper frame to the climbing belt and from the flyover guide to the cross cutting machine is almost constant. . What really counts is that how to calculate the actual amount of paper in the overpass and how to automatically compensate for the amount of bad paper torn on the overpass. At present, there are roughly the following calculation methods in the market:
â— The use of electric eye detection: This is a control method more than ten years ago. The method is to install two reflective infrared detectors on the flyover. Using the relationship between the vehicle speed and the ratio of the speed of the overpass belt, the amount of bridge overhang is calculated. For example, if the distance between the two electric eyes is 3 meters, and the ratio of the speed of the vehicle to the speed of the bridge belt is 6:1, the result of inference is that there is only 18 meters between the distance of one or two electric eyes. Of course, this technique is feasible for users who do not use paper changes, but it may seem strange to users who use high or low material changes. Why is it necessary to calculate some materials (about 3)? -5 meters), some errors can be as high as 20-30 meters? In fact, the reason is very simple, different paper materials, different thickness, of course, the shape of the waves in the flyover is also different in size, different levels so the error value will be much worse! At present, most of the domestic suppliers are using this method. The reason is that they are cheap and simple!
â— Use of inkjet technology: This is the most accurate computing technology currently used by large European and American manufacturers. For example, German BHS, US MARQULIP, and COPAR all use this kind of technology. The domestic Yuxi production and management system also uses this technology, which has higher costs but the highest accuracy. It uses the inkjet paper on the core paper, and then inducts the ink machine near the flyover guide. It automatically tracks and calculates from ink jet to ink detection, so the accuracy can be controlled within 1 meter.
â— Metal or ink paper sensor: commonly used in Japanese machines, like MITSUBISHI, ISOWA; The method is the same as ink-jet technology. The only difference is that the ink-jet is replaced with a metal sticker or a black sticker. The accuracy can also be within 1 meter. .
In addition, the quantitative control of the flyover is also a function that is only available in some advanced equipments. It can be kept at the same time like the "cruise by speed" of the advanced car, and a set quantity is kept on the flyover. At the same time, in the event of a single-pile machine picking up and the overbridge is insufficient, the laminating department will automatically reduce the speed to the speed at which the single-pile machine is to receive the paper. After the single-pile machine finishes the paper-feeding process, the laminating department automatically recovers. The speed before the speed drop.
â—‡ Change Order Control: This is the most important function on the cadre side; its action is not only to send orders to NC equipments and to initiate individual order exchange procedures at the appropriate timings, but also to separate front and rear orders and cross-cutting machine speeds in order to cooperate. The problem (cross cutting machines have different speed limits at different cut lengths), the officer control must be capable of automatically decelerating to an appropriate speed change, and after the autochanging process is completed, return to the speed before the change order or the cut length of the order. The maximum speed limit.
Others, such as automatic batter control, corrugating roller gap control, flyovers, etc., are interested in the functions and control technologies. We will introduce them to the operators one by one.
Six, technical capabilities and future expansion of a good set of corrugated machine production management system development is in fact the need for continuous innovation, enrichment, and long-term cooperation with the needs of customers to play the role of mechanical equipment, production management system suppliers Professionalism and technical ability must be taken seriously. To upgrade the industry, peripheral products must also have the ability to upgrade. It takes at least five years for a production management system to be used. The same question is whether suppliers of production management systems can provide you with at least 5 years of guarantees? What's more, at present, some suppliers are essentially just short traders who are short-selling!
Seven, maintenance and after-sales service and after-sales service is also a very important part; as previously stated, a production management system after buying it will take many years, it is a financial tool rather than consumables. Therefore, from another point of view, the best equipment is not bad, but it can not be bad because it will not give up considering the importance of maintenance and after-sales service. In fact, any better equipment will fail. At this time, how to obtain instant and rapid maintenance is a big test for the product. Is there a service station in the local area? How are maintenance technicians? Can also be used as a reference when you choose.
to sum up:
Compared to the cost of the entire corrugating machine, the ratio of production management systems is really very insignificant. But the right choice of a good production management system can help you save at least 3%-5% of the base paper, which can be said to be a small soldier. Maybe you want to ask, so many suppliers, each one said that he is good, who is better? Once again to provide you with a proposal, may wish to understand from the supplier's customer structure, after all, I believe that the actual will be more reliable than the trust of the salesman! (Finish)
åŒæ¥ Synchronous walking: The so-called synchronization refers to controlling the speed of a single pit, which can be automatically followed by the main canvas vehicle speed. Its role is to prevent overbridges from tearing paper or stacking too much paper. A good control method should try to avoid too fast speed, because the speed change is too fast, prone to machine vibration, poor fit and other problems: At the same time, it will also produce an abnormal situation in which the speed of the vehicle oscillates up and down the main canvas speed.
â—‡ Automatic splicing: Automatic splicing is not only controlling the splicer to operate at an appropriate time. It also includes stacking, synchronizing, decelerating, tying, and maintaining synchronism until the splicing head enters the corrugating roller. The whole program. Divided by the timing of automatic splicing, it can be divided into End Or End and End Or Paper Roll.
湿 Wet paper change: When the wet part needs to change the paper material or replace the paper when changing the paper size.
纸 Paper roll change: When paper or core paper needs to be switched, the most common situation is that the paper roll is used up now and it needs to be changed to another paper roll.
Of course, paper roll change operations are more difficult than wet paper change because, in addition to automatically calculating the amount of paper used, mathematical calculus techniques are also used to calculate the paper thickness from the change in diameter, and then from the thickness and The diameter of the paper tube is used to calculate the current remaining length of the paper roll.
At present, except for several large manufacturers in Europe and the United States, there are only one or two companies in Asia that can accurately calculate the current remaining length of the paper roll and control the error within 3 meters.
â—‡ Bridge control: The control of the bridge not only avoids the problem of tearing the paper, but also affects the accuracy of the entire wet paper change and the automatic compensation of manual paper tearing. The reason is very simple. In the entire corrugating machine production line, except that the bridge paper is wavy and it is not easy to estimate, the distance from the base paper frame to the climbing belt and from the flyover guide to the cross cutting machine is almost constant. . What really counts is that how to calculate the actual amount of paper in the overpass and how to automatically compensate for the amount of bad paper torn on the overpass. At present, there are roughly the following calculation methods in the market:
â— The use of electric eye detection: This is a control method more than ten years ago. The method is to install two reflective infrared detectors on the flyover. Using the relationship between the vehicle speed and the ratio of the speed of the overpass belt, the amount of bridge overhang is calculated. For example, if the distance between the two electric eyes is 3 meters, and the ratio of the speed of the vehicle to the speed of the bridge belt is 6:1, the result of inference is that there is only 18 meters between the distance of one or two electric eyes. Of course, this technique is feasible for users who do not use paper changes, but it may seem strange to users who use high or low material changes. Why is it necessary to calculate some materials (about 3)? -5 meters), some errors can be as high as 20-30 meters? In fact, the reason is very simple, different paper materials, different thickness, of course, the shape of the waves in the flyover is also different in size, different levels so the error value will be much worse! At present, most of the domestic suppliers are using this method. The reason is that they are cheap and simple!
â— Use of inkjet technology: This is the most accurate computing technology currently used by large European and American manufacturers. For example, German BHS, US MARQULIP, and COPAR all use this kind of technology. The domestic Yuxi production and management system also uses this technology, which has higher costs but the highest accuracy. It uses the inkjet paper on the core paper, and then inducts the ink machine near the flyover guide. It automatically tracks and calculates from ink jet to ink detection, so the accuracy can be controlled within 1 meter.
â— Metal or ink paper sensor: commonly used in Japanese machines, like MITSUBISHI, ISOWA; The method is the same as ink-jet technology. The only difference is that the ink-jet is replaced with a metal sticker or a black sticker. The accuracy can also be within 1 meter. .
In addition, the quantitative control of the flyover is also a function that is only available in some advanced equipments. It can be kept at the same time like the "cruise by speed" of the advanced car, and a set quantity is kept on the flyover. At the same time, in the event of a single-pile machine picking up and the overbridge is insufficient, the laminating department will automatically reduce the speed to the speed at which the single-pile machine is to receive the paper. After the single-pile machine finishes the paper-feeding process, the laminating department automatically recovers. The speed before the speed drop.
â—‡ Change Order Control: This is the most important function on the cadre side; its action is not only to send orders to NC equipments and to initiate individual order exchange procedures at the appropriate timings, but also to separate front and rear orders and cross-cutting machine speeds in order to cooperate. The problem (cross cutting machines have different speed limits at different cut lengths), the officer control must be capable of automatically decelerating to an appropriate speed change, and after the autochanging process is completed, return to the speed before the change order or the cut length of the order. The maximum speed limit.
Others, such as automatic batter control, corrugating roller gap control, flyovers, etc., are interested in the functions and control technologies. We will introduce them to the operators one by one.
Six, technical capabilities and future expansion of a good set of corrugated machine production management system development is in fact the need for continuous innovation, enrichment, and long-term cooperation with the needs of customers to play the role of mechanical equipment, production management system suppliers Professionalism and technical ability must be taken seriously. To upgrade the industry, peripheral products must also have the ability to upgrade. It takes at least five years for a production management system to be used. The same question is whether suppliers of production management systems can provide you with at least 5 years of guarantees? What's more, at present, some suppliers are essentially just short traders who are short-selling!
Seven, maintenance and after-sales service and after-sales service is also a very important part; as previously stated, a production management system after buying it will take many years, it is a financial tool rather than consumables. Therefore, from another point of view, the best equipment is not bad, but it can not be bad because it will not give up considering the importance of maintenance and after-sales service. In fact, any better equipment will fail. At this time, how to obtain instant and rapid maintenance is a big test for the product. Is there a service station in the local area? How are maintenance technicians? Can also be used as a reference when you choose.
to sum up:
Compared to the cost of the entire corrugating machine, the ratio of production management systems is really very insignificant. But the right choice of a good production management system can help you save at least 3%-5% of the base paper, which can be said to be a small soldier. Maybe you want to ask, so many suppliers, each one said that he is good, who is better? Once again to provide you with a proposal, may wish to understand from the supplier's customer structure, after all, I believe that the actual will be more reliable than the trust of the salesman! (Finish)
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