CN115389358B - Yarn multi-performance index synchronous detection device and method based on hairiness tester - Google Patents

Abstract

The invention provides a yarn multi-performance index synchronous detection device and a detection method based on a hairiness tester, wherein the device comprises a hairiness detection unit, a first yarn guiding unit, a tension adjusting unit and a friction unit; for cyclically rubbing the closed yarn of a preset length on the rubbing unit, collecting hairiness data in real time through a hairiness detection unit; the tension adjusting unit is a free falling type tension adjusting unit and is used for automatically adjusting the tension of the yarns in real time so as to ensure the friction and the transmission stability of the yarns. According to the invention, the circulating friction closed loop yarn loop is arranged, and the free falling type tension adjusting unit is arranged on the loop, so that the yarn always maintains certain tension in the friction creep process, and the friction stability is improved; meanwhile, data such as yarn hairiness change, wear-resistant times, yarn length change and the like are collected in real time until the yarn breaks, and further performances such as wear resistance, strength and creep deformation of the yarn are evaluated, so that synchronous and rapid detection of multiple performances of the yarn is realized.

Description

Yarn multi-performance index synchronous detection device and detection method based on hairiness tester

Technical Field

The present invention relates to the technical field of yarn performance detection devices, and in particular to a yarn multi-performance index synchronous detection device and a detection method based on a hairiness tester.

Background technique

Hairiness is one of the important indicators for measuring the quality of yarn and fabric. Yarn hairiness refers to the fiber head or fiber ring exposed on the surface of short fiber yarn. As one of the important indicators for evaluating yarn quality, hairiness not only affects the quality performance of yarn, but also has an adverse effect on the subsequent weaving processing efficiency and product performance. When the yarn is subjected to force, the hairiness lacks a gripping force point, so the hairiness does not help the yarn strength at all. In addition, if the yarn hairiness is too much, the yarn is more likely to wear and break in subsequent processing, affecting the processing efficiency. In the weaving process, yarns with too much hairiness are prone to entanglement, resulting in unclear openings, affecting weaving efficiency and quality.

Commonly used yarn hairiness evaluation indicators include the hairiness index of the hairiness root number distribution and the hairiness H value. The hairiness index describes the yarn hairiness by using the number of hairiness roots at different set lengths (it is defined as the cumulative number of hairiness roots extending on a single side exceeding a certain set length within a unit length, in units of roots/meter); the hairiness H value reflects the total amount of hairiness on the measured yarn per unit length (it is defined as the total length of the protruding fibers within the measured range of 1 cm). The hairiness evaluation index can be used to evaluate the yarn quality, processing and weaving performance.

However, there are two types of yarn hairiness: the hairiness that comes with the yarn after it is produced, and the other type is the regenerated hairiness of the yarn after multiple frictions. When the regenerated hairiness reaches a certain number and length, serious pilling will occur. The device provided by the prior art is single and can only be used to test the hairiness of the yarn, or to repeatedly rub a section of yarn through a wear resistance tester to test its wear resistance. Among them, the inherent hairiness is generally obtained by testing the total amount of hairiness on a certain length of yarn and then averaging it. For example, patent CN201420606153.6 discloses a yarn hairiness detection device, including a yarn transmission device, a yarn image acquisition device and a yarn image processing device. After the yarn is unwound from the bobbin, it passes through the field of view of a planar array camera with a magnifying lens at a constant tension on the yarn path formed by the yarn guide hook and the yarn guide wheel, and is finally output by a power roller driven by a drive motor. When the yarn passes through the image acquisition device, the area array camera is triggered synchronously with the stroboscopic background area light source, so that the background brightness of the collected yarn image meets the detection requirements, and the trigger frequency of the area array camera matches the current yarn guide speed, so that the yarn image is completely and non-redundantly collected. This method is a conventional non-closed cycle hairiness test method.

Patent CN201720561765.1 discloses a yarn wear detection device, which uses a mounting base and a counterweight to bind the two ends of the yarn, and the upper roller is connected to a computer, which records the number of rotations of the upper roller; two rollers are set to repeatedly rub the yarn, and the yarn breakage state is detected by the set counterweight. It can be seen that the existing technology has its own test methods and standards for testing yarn hairiness or wear resistance, and it is difficult to achieve comprehensive testing of multiple performance indicators of the yarn, so it is not practical.

Patent CN201810015923.2 discloses an online detection method for the hairiness on the surface of a circulating friction yarn. The method sets up a closed-loop yarn loop and arranges a friction roller in the loop so that the yarn is repeatedly rubbed during the cyclic transmission process, and the hairiness condition is detected in real time through a hairiness collection device in the loop. Although this method can monitor yarn friction online in real time, it still has certain defects: 1. For cyclic friction, the tension yarn guide cannot be adjusted automatically in real time, which will seriously affect the friction stability and thus the accuracy of the test results. It may even gradually become unable to circulate due to the continuous decrease in yarn tension; 2. A brush wheel is set on the closed-loop yarn circuit, and a suction pipe is set at the hairiness monitoring part. Both of these settings will affect the natural state of the hairiness on the yarn, increasing the number of factors affecting the hairiness, which in turn affects the detection stability and accuracy; 3. Only the dynamic hairiness and friction fracture properties of the yarn can be obtained, and other properties such as yarn creep cannot be obtained at the same time; 4. The length of the yarn loop is not limited. From the perspective of its device layout, it is not suitable for closed-loop testing of longer yarns. When the yarn loop is too short, the randomness of the test is greater, and the accuracy of the test results is reduced accordingly.

In view of this, it is necessary to design an improved yarn multi-performance index synchronous detection device and detection method based on a hairiness tester to solve the above problems.

Summary of the invention

In order to overcome the shortcomings of the above-mentioned prior art, the purpose of the present invention is to provide a yarn multi-performance index synchronous detection device and detection method based on a feather tester, by setting a circulating friction closed-loop yarn loop and arranging a free-fall tension adjustment unit on the loop, so that the yarn always maintains a certain tension during the friction creep process, thereby improving the friction stability; at the same time, the yarn feather data is collected in real time until the yarn breaks, and the wear resistance, strength, yarn appearance and creep performance of the yarn can be evaluated through the dynamic feather data of the yarn throughout the whole process, thereby realizing rapid detection of functional yarn performance, and the practicality and convenience are significantly improved.

To achieve the above-mentioned purpose of the invention, the present invention provides a synchronous detection device for multiple performance indicators of yarn based on a hairiness tester, comprising a hairiness detection unit, a first yarn guide unit, a tension adjustment unit and a friction unit; the device is used to circulate a closed yarn of a preset length on the friction unit, and collect hairiness data in real time through the hairiness detection unit; the tension adjustment unit is a free-fall tension adjustment unit, which is used to automatically adjust the tension of the yarn in real time to ensure the stability of yarn friction and transmission.

As a further improvement of the present invention, the tension adjustment unit includes a slide rail and a tension rod disposed in the slide rail; the yarn passes through the lower side of the tension rod and then guides to the friction unit; the slide rail is perpendicular to the transmission direction of the yarn and is used to automatically adjust the tension of the yarn in real time by using the gravity of the tension rod. The slide rail is provided with a displacement scale line for obtaining the dynamic creep data of the yarn.

As a further improvement of the present invention, the hairiness detection unit includes a hairiness collection module, a displacement sensor, a data processing module, and yarn guide rollers respectively arranged on the front and rear yarn guide paths of the hairiness collection module. The data processing module is used to convert the hairiness data collected by the hairiness collection module into the number of hairiness roots per unit length of yarn, and classify the number of hairiness roots according to the hairiness length.

As a further improvement of the present invention, the friction unit includes a friction roller, a yarn guide roller and a transmission device for providing power to the friction roller and adjusting the rotation speed, so that the closed yarn is cyclically frictionally transmitted between the feather detection unit, the first yarn guide unit, the tension adjustment unit and the friction unit.

As a further improvement of the present invention, the tension adjustment unit is arranged between the first yarn guiding unit and the friction unit, and the first yarn guiding unit includes a first support rod and a plurality of third yarn guiding rollers arranged on the first support rod for adjusting the guiding of the yarn.

As a further improvement of the present invention, it also includes an image acquisition device for acquiring the yarn appearance image.

The method for synchronously detecting multiple performance indicators of yarn based on a hairiness tester adopts the device for synchronously detecting multiple performance indicators of yarn based on a hairiness tester, and comprises the following steps:

S1. The closed yarn of a preset length sequentially passes through the hairiness detection unit, the first yarn guide unit, the tension adjustment unit and the friction unit to form a circulating transmission loop;

S2. Start the hairiness detection unit and the transmission device to make the yarn uniformly transmitted and obtain the length and number of hairiness on the yarn in real time until the yarn breaks;

S3. Processing all data after the breakage to obtain multiple groups of performance data of the yarn.

As a further improvement of the present invention, the preset length of the closed yarn is 10 meters.

As a further improvement of the present invention, the multiple sets of performance data of the yarn include yarn cyclic wear resistance data, pilling data, dynamic creep data, friction yarn weight loss data, friction yarn dryness appearance data, and predicted yarn weaving performance.

The beneficial effects of the present invention are:

1. The invention provides a synchronous detection device and method for multiple performance indicators of yarn based on a hairiness tester. A circulating friction closed-loop yarn loop is set, and a free-fall tension adjustment unit is set on the loop, so that the yarn always maintains a certain tension during the friction creep process, thereby improving the friction stability; at the same time, data such as yarn hairiness change, yarn defect change, length change, wear times, etc. are collected in real time until the yarn breaks, so as to comprehensively evaluate the wear resistance, strength, yarn appearance, creep and other properties of yarns with different materials, structures, thicknesses and functions, thereby realizing rapid detection of multiple functional yarn properties, and significantly improving practicality and convenience.

2. By adopting a free-fall tension adjustment unit and setting a displacement scale on the slide rail, the elongation of the yarn length is calculated through the displacement value of the tension rod, and then the dynamic creep performance data of the yarn is obtained. It is convenient to compare and fit multiple sets of dynamic data, so as to conduct a comprehensive performance evaluation and prediction of the yarn. Compared with the single test method and device in the prior art, the present invention provides a new device and detection idea for the comprehensive performance evaluation of the yarn, and is expected to obtain a new yarn performance evaluation standard, thereby improving the efficiency and accuracy of yarn performance detection.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a device for synchronously detecting multiple performance indicators of yarn based on a hairiness tester according to the present invention.

FIG. 2 is a schematic structural diagram of the tension adjustment unit in FIG. 1 .

Figure 3 is a curve showing the relationship between the number of yarn hairiness and the number of cycles.

Figure 4 is a curve showing the relationship between the pilling quantity of different yarns and the number of cycles.

Figure 5 is a physical picture of the appearance of 18tex yarn at different cycle numbers.

Figure 6 is a physical picture of the appearance of 24tex yarn at different cycle numbers.

Reference numerals

10-hairiness detection unit; 11-hairiness collection module; 12-first yarn guide roller; 13-second yarn guide roller; 14-first roller; 15-second roller; 16-image acquisition device; 20-first yarn guide unit; 21-first support rod; 22-third yarn guide roller; 30-tension adjustment unit; 31-slide rail; 32-tension rod; 40-friction unit; 41-second support rod; 42-friction roller; 43-fourth yarn guide roller; 50-yarn.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below in conjunction with specific embodiments.

It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and/or processing steps closely related to the scheme of the present invention are shown in the specific embodiments, while other details that are not closely related to the present invention are omitted.

In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

Please refer to Figures 1 and 2. The present invention provides a yarn multi-performance index synchronous detection device and detection method based on a hairiness tester, including a hairiness detection unit 10, a first yarn guide unit 20, a tension adjustment unit 30 and a friction unit 40; used to circulate and rub a closed yarn 50 of a preset length on the friction unit 40, and collect hairiness data in real time through the hairiness detection unit 10. Wherein. The tension adjustment unit 30 is a free-fall tension adjustment unit 30. During the friction process, the length of the yarn 50 will slowly increase due to creep. Through this tension adjustment unit 30, the tension of the yarn 50 can be automatically adjusted in real time, so that the yarn 50 is always transmitted to the friction unit with a constant tension to ensure the stability of the yarn friction and transmission, thereby improving the stability and accuracy of the detection. A transmission device is provided on the entire yarn loop for the yarn 50 to be circulated and transmitted at a uniform speed on the loop. The detection device of the present invention can perform dynamic hairiness detection on the yarn 50, and can predict many properties of the yarn through dynamic hairiness data. For example, a yarn cycle produces a set of total hairiness data corresponding to the length. By comparing the hairiness data of each cycle, the friction and hairiness of the yarn can be obtained, and then the processing and weaving performance of the yarn can be predicted.

Specifically, as shown in FIG. 2 , the tension adjustment unit 30 includes a slide rail 31 and a tension rod 32 disposed in the slide rail 31; the yarn 50 passes through the lower side of the tension rod 32 and then guides to the friction unit 40; the slide rail 31 is perpendicular to the transmission direction of the yarn 50 at this location, and is used to automatically adjust the tension of the yarn 50 in real time by using the gravity of the tension rod 32. The weight of the tension rod 32 is in the range of 2-20 grams, which should not be too large, resulting in excessive tension, affecting friction and transmission, nor too small, making it difficult to achieve stable downward pressure tension adjustment. In particular, a displacement scale is provided on the slide rail 31, and the length elongation of the yarn 50 is calculated by the displacement value of the tension rod 32, thereby obtaining the dynamic creep performance data of the yarn; the tension rod 32 can also be designed as a rod-shaped weight.

The hairiness detection unit 10 includes a hairiness collection module 11, a displacement sensor (not shown in the figure), a data processing module (not shown in the figure), and guide rollers respectively arranged on the front and rear guide paths of the hairiness collection module 11, such as the first guide roller 12, the second guide roller 13, the first roller 14, and the second roller 15 in FIG1 . The yarn 15 is fed into the entrance of the hairiness collection module 11 through the first guide roller 12 and the second guide roller 13, and then exported from the exit through the first roller 14 and the second roller 15 to the first guide unit 20. The data processing module is used to convert the hairiness data collected by the hairiness collection module into the number of hairiness roots per unit length of the yarn, and classify the number of hairiness roots according to the length of the hairiness, for example, giving data of 1, 3, 5, and 10 mm hairiness respectively. Each loop circulates a set of hairiness data, and finally obtains other performance data such as wear resistance and creep of the yarn 50 through curve fitting. Through the detection device of the present invention, multiple sets of data can be matched one by one, so as to comprehensively evaluate the performance of the yarn. For example, the hairiness data and creep data under different cycle numbers can be compared to determine the comprehensive effect of friction on yarn hairiness and creep. Different yarns may have similar hairiness data but large differences in creep, or large differences in hairiness but similar creep. Through the comprehensive evaluation of multiple sets of data, a more comprehensive and reasonable evaluation and prediction of yarn performance can be made.

The tension adjustment unit 30 is arranged between the first yarn guide unit 20 and the friction unit 40. The first yarn guide unit 20 includes a first support rod 21 and a plurality of third yarn guide rollers 22 arranged on the first support rod 21, which are used to adjust the guide of the yarn 50. After the yarn 50 is led out from the first roller 14 and the second roller 15, it is transmitted to the friction unit 40 through the third yarn guide roller 22 and the tension rod 32 below the first support rod 21. The yarn 50 led out from the friction unit is then transmitted to the third yarn guide roller 22 above the first support rod 21, and then fed into the first yarn guide roller 12 of the hairiness detection unit 10, so as to realize the closed loop transmission of the yarn. On the one hand, the first yarn guide unit 20 can guide the transmission of the yarn, and on the other hand, it is to deal with the situation that when the yarn circulation loop is too long, the yarn is affected by its own gravity, and the transmission is easily blocked when the creep is large. By arranging the first yarn guide unit 20 on the transmission path in front of the tension adjustment unit 30, the yarn path of the tension adjustment section is reduced, thereby improving the sensitivity and accuracy of the free fall tension adjustment. The distance between the tension adjustment unit 30 and the first yarn guiding unit 20 and the friction unit 40 is 10-50 cm, preferably 15-30 cm, and the total length of the yarn loop is 10 m.

The friction unit 40 includes a friction roller 42, a yarn guide roller (such as the fourth yarn guide roller 43 in FIG. 1 ), and a transmission device (shown in the figure) for providing power to the friction roller 42 and adjusting the rotation speed, so that the closed yarn 50 is cyclically friction-transmitted between the hairiness detection unit 10, the first yarn guide unit 20, the tension adjustment unit 30 and the friction unit 40. The friction roller 42 and the fourth yarn guide roller 43 are arranged on the second support rod 41, and the yarn 50 after friction is transmitted upward, and then guided to the third yarn guide roller 22 above the first support rod 21. Through multiple groups of vertically upward yarn guide rollers, it is convenient to deal with the transmission stability of longer yarns, reduce the path length in the horizontal direction, and save the occupied space of the detection device.

In particular, the yarn loop of the present invention further includes an image acquisition device 16 for acquiring an image of the yarn appearance. The image acquisition device 16 is preferably arranged on the transmission path in front of the hairiness detection unit, such as a high-speed photography device.

The present invention also provides a method for synchronously detecting multiple performance indicators of yarn based on a hairiness tester, and a device for synchronously detecting multiple performance indicators of yarn based on a hairiness tester is used, comprising the following steps:

S1. The closed yarn of a preset length sequentially passes through the hairiness detection unit, the first yarn guide unit, the tension adjustment unit and the friction unit to form a circulating transmission loop;

S2. Start the hairiness detection unit and the transmission device to make the yarn uniformly transmitted and obtain the length and number of hairiness on the yarn in real time until the yarn breaks;

S3. Process all data after the breakage to obtain multiple groups of performance data of the yarn.

The preset length of the closed yarn is 10 meters. The transmission speed of the yarn is 5-100 meters per minute. According to the national test standard for yarn hairiness, the preferred yarn transmission speed is 30 meters per minute. The friction force of the friction unit is determined by the roughness of the yarn surface, the roughness of the sandpaper wrapped around the friction unit 40, and the weight of the tension rod 32 that automatically adjusts the tension. The greater the roughness of the sandpaper wrapped around the friction unit 40, the greater the friction force, and the heavier the weight of the tension rod 32, the greater the friction force.

The multiple groups of performance data of the yarn include real-time hairiness data of the yarn, yarn cyclic wear resistance data, pilling data, dynamic creep data, friction yarn weight loss data, friction yarn line appearance data, and predicted yarn weaving performance. Among them, the number of cycles when the yarn breaks can be used to characterize the yarn cyclic wear resistance; the number of pilling can be obtained through the hairiness detection unit or the image acquisition device 16; the dynamic creep performance during the friction process can be obtained through the real-time displacement data of the tension rod 32, and the length after the break is compared with the initial length to obtain the total creep length at the final break. The friction yarn weight loss data is obtained by comparing the weight after the break with the initial weight. The friction yarn line appearance data is obtained through the image acquisition device 16. The yarn weaving performance is comprehensively predicted by the performance data obtained above. For example, the yarn will be subjected to a certain repeated friction force during the weaving process. By setting the friction force of the present invention to be equivalent to the friction force of the actual weaving process, and then testing its dynamic hairiness and creep data changes, the weaving process is simulated and predicted. The invention compares the dynamic hairiness and abrasion resistance test results of sized and unsized yarns to predict the influence of sizing technology on the comprehensive weaving performance of the yarns.

Example

Cotton roving was used to spin yarns with yarn numbers of 18, 24, 36 and 48 tex respectively, and a cyclic friction test was performed on the above 10 m closed yarn using the yarn multi-performance index synchronous detection device based on the hairiness tester of the present invention, to dynamically monitor the change in the number of hairiness during yarn friction, dynamically monitor the change in yarn morphology during yarn friction, dynamically monitor the pilling after yarn friction, dynamically monitor the creep during yarn friction, the weight loss before and after yarn friction, the number of yarn friction cycles and predict seven indicators of yarn weaving performance.

As shown in Figure 3, it is obvious that the larger the yarn diameter, the more cycles when it breaks, that is, the better the wear resistance. The cycles when the yarns of 18, 24, 36, and 48 tex break are 74, 136, 190, and 240 times, respectively, and the number of hairiness gradually increases. Among them, when the number of cycles of the 36 tex yarn is greater than 150 times, the number of hairiness increases linearly from 4000 to 8000. It can be seen that when the diameter of the cotton yarn increases, the strength increases, but the number of hairiness increases accordingly, and friction is also more likely to produce hairiness.

Table 1 Test results of yarn dynamic creep length and weight loss

Yarn number (tex) Dynamic creep length(cm) Weight loss (g) 18 12.0 0.0257 twenty four 31.5 0.0361 36 82.0 0.1164 48 147.5 0.1213

It can be seen from Table 1 that the creep elongation and mass loss at yarn breakage increase with the increase of yarn fineness.

In summary, the yarn multi-performance index synchronous detection device and detection method based on the hairiness tester provided by the present invention, by setting a circular friction closed-loop yarn loop and setting a free-fall tension adjustment unit on the loop, the yarn always maintains a certain tension during the friction creep process, thereby improving the friction stability; at the same time, the yarn hairiness change, yarn defects, wear resistance times, yarn length change and other data are collected in real time until the yarn breaks, and then the wear resistance, strength, creep and other properties of yarns of different materials, structures, thicknesses and functions are evaluated and measured, thereby realizing the rapid detection of multiple performance indicators of functional yarns, and the practicality and convenience are significantly improved. The present invention provides a new device and detection idea for the comprehensive performance evaluation of yarns, and is expected to obtain a new yarn performance evaluation standard, thereby improving the detection efficiency and accuracy of yarn performance.

The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims (5)

1. The yarn multi-performance index synchronous detection device based on the hairiness tester is characterized by comprising a hairiness detection unit, a first yarn guiding unit, a tension adjusting unit and a friction unit; the closed yarn with preset length is circularly rubbed on the friction unit, and hairiness data are collected in real time through the hairiness detection unit; the tension adjusting unit is a free falling type tension adjusting unit and is used for automatically adjusting the tension of the yarns in real time so as to ensure the friction and the transmission stability of the yarns; the tension adjusting unit comprises a sliding rail and a tension rod arranged in the sliding rail; the yarn passes the lower side of the tension rod and is redirected to the friction unit; the sliding rail is perpendicular to the transmission direction of the yarns and is used for automatically adjusting the tension of the yarns in real time by utilizing the gravity of the tension rod; the hairiness detection unit comprises a hairiness acquisition module, a displacement sensor, a data processing module and yarn guide rollers respectively arranged on yarn guide paths before and after the hairiness acquisition module, wherein the data processing module is used for converting hairiness data acquired by the hairiness acquisition module into hairiness numbers on a unit length of yarn and classifying the hairiness numbers according to the hairiness lengths; the friction unit comprises a friction roller, a yarn guide roller and a transmission device for providing power for the friction roller and adjusting the rotating speed, so that the closed yarn is circularly in friction transmission among the hairiness detection unit, the first yarn guide unit, the tension adjusting unit and the friction unit; the tension adjusting unit is arranged between the first yarn guiding unit and the friction unit, and the first yarn guiding unit comprises a first supporting rod and a plurality of third yarn guiding rollers arranged on the first supporting rod and used for adjusting the guiding of yarns.

2. The yarn multi-performance index synchronous detection device based on the hairiness tester according to claim 1, wherein displacement scale marks are arranged on the sliding rail and are used for acquiring dynamic creep data of yarns.

3. The yarn multi-performance index synchronous detection device based on the hairiness tester according to claim 1, further comprising an image acquisition device for acquiring a yarn evenness appearance image of the yarn.

4. A yarn multi-performance index synchronous detection method based on a hairiness tester, characterized in that the yarn multi-performance index synchronous detection device based on the hairiness tester according to any one of claims 1 to 3 is adopted, comprising the following steps:

S1, sequentially passing closed yarns with preset lengths through a hairiness detection unit, a first yarn guiding unit, a tension adjusting unit and a friction unit to form a circulating transmission loop;

s2, starting the hairiness detection unit and the transmission device to enable the yarn to be transmitted at a constant speed, and acquiring the hairiness length and the hairiness quantity on the yarn in real time until the yarn is broken;

S3, processing all the broken data to obtain multiple groups of performance data of the yarn.

5. The method for synchronously detecting the yarn multi-performance indexes based on the hairiness tester according to claim 4, wherein the plurality of groups of performance data of the yarn comprise yarn circulation wear-resistant data, fuzzing and pilling data, dynamic creep data, friction yarn weight loss data, friction yarn evenness appearance data and pre-judging yarn weaving performance.