Increase The Application Of Digital Sensing Technology In Automatic Testing Of Textile Testing Equipment

In recent years, spin Testing equipment has made great progress in testing mechanism, electromechanical integration and computer microelectronics. More and more high-capacity, intelligent and multi-functional full-automatic textile testing equipment has begun to be applied in the field of textile product testing. The research, development and use of this new mechatronics equipment not only expand the ways and means of modern textile detection technology, but also make a qualitative leap in the online and offline detection capabilities of textile products.

　 Increased automation testing

Judging from the development of textile testing technology at home and abroad, in recent years, the trend of replacing single fiber length measuring and weighing instruments with new vibration instruments is gradually obvious. For example, foreign high-end technology R&D departments have successively developed a variety of equipment for measuring fiber fineness based on vibration method, which has the advantages of not requiring manual operation and adjustment, and can automatically complete fiber linear density testing with single key operation. Since the fiber density measurement process no longer mainly depends on manual judgment, the accuracy of the measurement results is greatly improved. The production practice shows that two people can complete the test of 190 samples in one hour by using the vibrating fiber test instrument.

The automation of modern textile detection technology is constantly increasing, which is mainly reflected in the extensive application of high-tech and other aspects. For example, with the continuous updating 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 and elongation test, the use of new equipment can not only achieve many functions including collection, processing and data display, but also effectively control the elongation at break of samples.

At present, the technology of fiber regulation and control through computer software in China is mainly reflected in the use of computer central network and photometric detection for identification. More and more technicians have come to realize that using the computer network center to measure products is not only reliable, fast, and can accurately distinguish fiber products with very similar chemical components, but also can identify the fiber blend components in the yarn.

　 Application of digital sensing technology

Now, digital image processing technology has been widely used in textile detection technology. For example, optical fiber direct analysis equipment is one of them. It uses high-end digital image processing technology to measure wool fiber, ensuring the accuracy of wool fiber diameter and average diameter. According to the test, its speed can reach 10000 pieces per minute. Moreover, the crimp degree of fiber raw materials such as medullary hair and chemical fiber can be directly tested by using optical fiber analysis equipment.

In modern textile inspection technology, laser technology has also been fully applied. For example, the laser scanner used in Australia's textile industry is a representative of the application of laser technology in textile technology. Its detection speed is not lower than that of the optical fiber direct analysis equipment, but its control technology is completely laser scanning and computer. It can complete fiber detection in a short time by using the fiber diameter under computer control, and can accurately measure the CV value and the average diameter of the product. The testing instrument can also draw the fiber number distribution diagram.

In addition, the sensing technology in modern textile detection technology is also constantly upgrading. For example, in textile testing equipment, the application of audio frequency and photoelectric sensing technology of capacitive sensing is constantly developing. The representative company is Zweig of Germany, whose textile testing equipment includes audio equipment, and the vibration frequency is generally between 3Hz and 5Hz. This method, which makes full use of the changes of fiber audio frequency to measure textile products, not only truly reflects the density and evenness of the measured sliver and roving yarn, but also the whole measurement result will not be affected and interfered by the surrounding environment.

　 Detection technology presents three trends

Driven by the development of digital sensing and automatic detection technology, three new trends have emerged in modern textile detection technology, namely, the trend towards analog quality detection and evaluation, high speed and efficiency, and multi-function.

First, modern automatic detection technology is developing towards analog quality detection and evaluation. With the development trend of intelligence and automation of spinning inspection equipment becoming clear, the influence of manual operation on product inspection results has become less and less. Therefore, today's textile enterprises can use the test results to make reliable simulation predictions on the processing process and product quality of textile products. In this way, we can not only effectively avoid the possible quality problems of sample products, but also save production time and cost.

Second, high speed and efficiency have always been the goal of textile detection technology. After years of efforts, many technicians at home and abroad have made progress in this regard. For example, the high-performance tensile tester developed by Zerweg Ulster can test at a speed of 400m/min and can complete 30000 product tensile tests per hour. It can not only provide the effectiveness and accuracy of product testing, but also improve the testing speed and ensure the efficiency of the testing process.

However, these technological advances have not fully achieved the user enterprises' endless pursuit of high-speed and efficient. In this sense, high speed and high efficiency will still be a major trend in the development of detection equipment for a long time in the future.

Third, the development of detection equipment towards multi attribute and multi-function will be more obvious. The traditional textile product testing only evaluates the single attribute of the product. This detection method not only consumes time and manpower, but also the detection results are vulnerable to human factors. The modern textile detection technology not only eliminates the influence of manual operation on the detection results, but also can detect multiple attributes such as product density, length and fracture elongation, reflecting the trend towards multi-function.