Application of the hottest visual inspection syste

2022-09-22
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Application of visual inspection system in the quality control of soft package production

release date: Source: China Packaging editor: litchi browsing times: 633 copyright and disclaimer

core tip: today's soft package printing market, competition is extremely fierce. This round of national defense and military reform is fierce. In addition to the fact that price is a factor considered by customers, customers also pay great attention to the quality of products. The quality, reliability, stability and production cost of products directly affect the competitiveness of enterprises in the market and the efficiency and survival of enterprises. As a person in charge of quality management, it is very difficult to ensure high quality delivery, especially for low-cost products. This article mainly shares some personal experiences to attract friends in the upholstery industry

[China Packaging News] in today's soft package printing market, competition is extremely fierce. In addition to the fact that price is a factor considered by customers, customers also pay great attention to the quality of products. The quality, reliability, stability and production cost of products directly affect the competitiveness of enterprises in the market and the efficiency and survival of enterprises. As a person in charge of quality management, it is very difficult to ensure high quality delivery, especially for low-cost products. This article mainly shares some personal experiences to attract friends in the upholstery industry

problem: manual detection of defects - low efficiency, high customer complaints

first, analyze the situation of our production workshop by Brinell hardness value (HB). At present, our printing speed is fast, which can reach about 200 meters/minute; The production quality is controlled by the static picture and the occasional observation of strobe light

no matter how advanced the printing equipment is, how high the operation level of workers is, how strict the control of raw materials is, how standardized the management is, the emergence of all kinds of defective products cannot be avoided

secondly, analyze the situation of our post-processing workshop:

the most troublesome thing for the post-processing workshop is the ex factory quality inspection. We try to reduce the speed as much as possible, but we can't detect accidental defects, and even some continuous small defects are missed. Moreover, the results of workers' testing are sometimes good or bad, and the standards are not unified. Workers always fail to satisfy us and complain about tired eyes and high labor intensity. However, our customers' requirements are getting higher and higher. Products that were highly recognized by customers two years ago are now frequently complained

breakthrough in quality control - visual inspection system how to improve the yield in the production process and how to improve our factory quality inspection process have become the bottleneck of our factory production. Nowadays, with the rapid development of equipment and technology, we found that Beijing Lingyun company has launched a printing visual inspection system, which can replace manual inspection with machines

in view of our current problems, Beijing Lingyun company has given two solutions:

install a detection system on the printing machine to control the quality of the label printing process, and give an audible and visual alarm after detecting defects

this plan focuses on controlling the defects in the printing process, finding the cause of the defects as soon as they are found, and rectifying the root cause of the problem. It can effectively reduce the occurrence of defective products

the visual inspection system is installed on the slitter, reinspector and other equipment. After detecting defects, it can uncover, repair, cut and receive materials, and detect the product quality before the label leaves the factory. This plan focuses on the control of factory quality to ensure that 100% of qualified products leave the factory

adhering to the principle of customer first, we believe that ensuring the ex factory quality of products is the top priority. The stronger the system is, the second set of solutions is selected. A Lingyun automatic detection system was introduced and installed on the rewinder of our Tianjin Branch for trial use. During the two-month trial process, we found that Lingyun visual inspection system not only greatly improves the inspection speed and reduces the labor cost, but also the inspection accuracy. At present, some electronic tensile testing machines in the market adopt sensors with small force values. Generally, S-type sensors are much higher than manual ones, and customers' satisfaction with our products has increased significantly. With the successful experience of Tianjin factory, our general factory in Zhuhai has also introduced Lingyun visual inspection system

rewinder equipped with Beijing Lingyun visual inspection system

the visual inspection system uses the world's advanced linear array high-speed imaging Ultra HD camera to take continuous photos, and then analyzes the photos with its self-developed inspection software to find out the defects, and feeds back the inspection results to the rewinder, so that the rewinder can stop the defects to the specified position, so as to eliminate the defects. Compared with manual work, the advantages are:

1, strict and unified standards, and different products can be tested differently. For example, the setting value of quality inspection and detection is set according to the following: A-level --- stricter; Level B --- General; Grade C --- relatively loose

class A: "knife line - (70% - 90%)" "ink dot - (70% - 90%)" "white dot - (50% - 70%)" "color deviation defect - (40% - 60%)"

b: "knife line - (60% - 80%)" "ink dot - (60% - 80%)" "white dot - (40% - 60%)" "color deviation defect - (30% - 50%)"

c level: "knife line - (50% - 70%)" "ink dot - (50% - 70%)" "white dot - (30% - 50%)" "color deviation defect - (20% - 40%)"

2, high color resolution, 100% full inspection, never tired

3, rich defect browsing and analysis functions; When the detection is completed, the defect data is saved in the detection system. Lingyun detection software has the following functions to process data:

print defects according to batches

Browse defects in list and view modes

output reports (defect details, defect distribution map)

long term detection statistics function

local sharing browsing defects

managers can browse defect data remotely, You can understand the production quality without going to the workshop. The technologist can find the most intensive location of defects through the long-term defect statistics function and defect distribution, so as to improve the production process and so on

visual inspection system, installed on the free rewinder, with the detection speed of 250 meters/minute, automatically stops in case of defects, which is efficient and fast. At present, all customers with high quality requirements have been replaced by visual inspection systems. Almost zero customer complaints were received

some wise domestic soft packaging enterprises have been at the forefront of the industry, taking the lead in introducing various automation equipment to replace traditional labor, reducing labor costs and improving production efficiency. Our country is a big printing country. I hope some of my experience can help friends in the industry

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