In recent years, textile testing equipment has achieved rapid development in the detection mechanism, mechanical and electrical integration and computer microelectronics. More and more large-capacity, intelligent, multi-functional automatic textile testing equipment has begun in textiles. Product testing applications. The development and use of this new electromechanical integration equipment not only expands the methods and methods of modern textile inspection technology, but also enables a qualitative leap in the online and offline inspection capabilities of textile products.
Increased automated testing
From the perspective of the development of textile testing technology at home and abroad, in recent years, the trend of new vibrating instruments replacing individual fiber length measuring and weighing instruments has become increasingly obvious. For example, foreign high-end technology research and development departments have successively developed a variety of equipment based on vibration method to measure the fineness of fibers, which has the advantages of not requiring manual operation and adjustment, and the ability to automatically complete the fiber density test with a single key operation. Since the fiber density measurement process is no longer mainly based on manual judgment, the accuracy of the measurement results is greatly improved. Production practice shows that using a vibratory fiber tester, two individuals can complete 190 samples within one hour.
The automation of modern textile inspection technology is continuously increasing, which is mainly reflected in the wide application of high-tech and other aspects. For example, with the continuous update of network computer technology, developed countries have introduced a new type of computer control system that can be used in textile product density detection equipment. It not only effectively solves the sample time, but also avoids the error of the sample itself. Especially in the single fiber strength test, using the new equipment not only can achieve many functions including collection, processing and data display, but also can effectively control the elongation at break of the sample.
At present, the domestic technology for fiber conditioning control through computer software is mainly reflected in the use of computer backbone network and photometric detection methods for identification. More and more technical personnel gradually realize that using a computer network center to measure products is not only reliable and fast, but also can accurately distinguish textile products with very similar chemical compositions, and can also identify fiber blending components in yarns.
Digital Sensing Technology
Digital image processing technology is now widely used in textile inspection technology. For example, optical fiber direct analysis equipment is one of them. It uses high-end digital image processing technology to measure wool fibers to ensure the accuracy of the diameter and average diameter of the wool fibers. According to tests, it can reach a speed of 10,000 per minute. Moreover, the use of optical fiber analysis equipment can also directly test the degree of curling of fibrous materials such as medulla and chemical fibers.
In modern textile inspection technology, laser technology has also been fully applied. For example, laser scanners used by the Australian textile industry represent the application of laser technology in textile technology. Its detection speed is not lower than the speed of the optical fiber direct analysis equipment, and its control technology is completely using laser scanning and computer. It is controlled by a computer and uses the fiber diameter to detect the fiber in a short time. It can accurately determine the CV value and average diameter of the product. The test instrument can also plot the fiber number distribution.
In addition, sensor technology in modern textile inspection technology is also constantly upgraded. For example, in the textile testing equipment, the application of capacitive sensing audio and photoelectric sensing technology continues to develop. Representative German Zwig company, its production of textile testing equipment contains audio equipment, vibration frequency is generally between 3Hz ~ 5Hz. This method of making full use of the change in the acoustic frequency of fibers to measure textile products not only truly reflects the density and uniformity of the measured slivers and coarse yarns, but also the entire measurement results are not affected and disturbed by the surrounding environment.
Detection technology presents three trends
Driven by the development of digital sensing and automated inspection technology, three new trends have emerged in modern textile testing technology, namely the development of analog quality inspection and evaluation, high speed and high efficiency, and multi-functionalization. trend.
First, modern automatic detection technology has developed toward the direction of analog quality detection and evaluation. With the trend of intelligence and automation of spinning testing equipment becoming clear, manual operations have had a smaller impact on product testing results. Therefore, today's textile companies can use test results to reliably process textile products and product quality. The simulation forecast. In this way, not only the quality problems that may occur with the sample product can be effectively avoided, but also production time and production costs can be saved.
Second, high-speed, high-efficiency has always been the goal of textile inspection technology. After years of hard work, many domestic and foreign technicians have made progress in this area. For example, the high-performance tensile tester developed by the Zeerweg-Uster company can reach a test speed of 400 meters per minute and can be completed in an hour. Thousands of product tensile tests. It can not only provide the validity and accuracy of product testing, but also improve the speed of detection and ensure the efficiency of the inspection process.
However, these technological advancements have not completely achieved the goal of the user companies to pursue the high-speed, high-efficiency endless pursuit. In this sense, high speed and efficiency will continue to be a major trend in the development of testing equipment for a long time to come.
Third, it will be more obvious that testing equipment will develop in the direction of multi-attribute and multi-functionality. Traditional textile product testing only assesses the single attribute of the product. This detection method not only consumes time and manpower, but the detection results are easily affected by human factors. The modern textile inspection technology not only eliminates the influence of manual operation on the test results, but also can detect multiple attributes such as product density, length, and elongation at break, reflecting the trend toward multi-functional development.
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