Cyclic friction-based fabric multi-performance index synchronous detection device and detection method

Abstract

The application provides a kind of based on cyclic friction fabric multi-performance index synchronous detection device and detection method, the device includes friction unit, first cloth guide unit, tension adjustment type static detection unit and hair and appearance detection unit;Friction unit is used to cyclically repeatedly rub fabric strip;Tension adjustment type static detection unit is located in the back of first cloth guide unit, for automatically adjusting the tension of fabric strip in the cycle process, and detecting friction static charge;Hair and appearance detection unit is used to realize the synchronous detection of multiple performance indexes of fabric strip.The application sets up a cyclic friction closed loop, and sets up a free-fall tension adjustment type static detection unit on the loop, ensures that the fabric strip always maintains constant tension during the cyclic friction process, improves the detection stability;When detecting the fabric strip, the fabric strip is pretreated with double-sided tape for protection, which further improves the detection stability and realizes rapid and accurate detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of textile testing technology, and particularly relates to a fabric multi-performance index synchronous detection device and method based on cyclic friction. BACKGROUND

[0002] 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 staple yarn. If the yarn hairiness is too much, the yarn will be greatly abraded when the yarn is woven into fabric, and the fabric surface will also have too much hairiness. Too much and long hairiness on the fabric surface is easy to entangle and form fiber balls, which causes the fabric to pilling and the smoothness to be poor. At the same time, too much hairiness on the fabric surface will cause uneven dyeing of the fabric. In addition, too much hairiness on the fabric surface is also easy to get dust and other impurities. In short, too much and long hairiness on the fabric surface will affect the visual and tactile qualities of the fabric. Of course, it is not better to have less hairiness on the fabric. A certain amount of hairiness on the fabric surface can increase the warmth and comfort. Therefore, in actual production and application, the hairiness on the fabric surface needs to be tested to determine whether it meets different use requirements.

[0003] At present, the main methods for testing the fabric surface hairiness are naked eye direct visual method, burning hair weighing method and fabric folded edge image acquisition and analysis method. The naked eye direct visual method is to fold the fabric and place it in a bright place, and observe the distribution of the hair on the convex edge against the light. The measurement result of this method is affected by the subjectivity of the tester, and the test result has poor reliability, especially for some samples with quite similar fabric surface hairiness, which is difficult to compare and distinguish. The burning hair weighing method is to burn the hairiness of the fabric, compare the weight of the fabric before and after burning, and obtain the weight ratio of the hairiness. This method is accurate and reliable, but the burning process has high energy consumption and complex process, and can only compare the weight of the hairiness, and the distribution of the hairiness such as morphology and uniformity cannot be detected and characterized. The fabric folded edge image acquisition and analysis method is to fold the fabric surface or sample, expose the hairiness part outward, place it on a background with large contrast, directly take pictures of the fabric to be evaluated using a digital imaging device, and then perform image processing to evaluate the number, length and other parameters of the fabric surface hairiness. This method can accurately express the fabric surface hairiness condition, but it has the technical problems of too many times of collection and analysis, and cannot continuously, quickly and simply objectively evaluate the fabric surface hairiness index.

[0004] The patent with the application number CN201810016702.7 discloses an online detection method for circularly rubbing the surface hair of fabric, which sets a closed loop, and sets four rubbing rollers in the closed loop, so that the cloth strip in the closed loop is continuously circulated, so that each part of the cloth strip is continuously rubbed, and the hair on both sides of the cloth strip after rubbing is projected onto the detection head of the yarn hair instrument by laser vertical irradiation, so that the hair length and the number of hair parameters of both sides of the cloth strip are obtained. Although this method can effectively combine the continuous circulation of the upper and lower surfaces of the fabric with the real-time online detection of the hair, it still has some defects: 1. The device cannot control the tension during the rubbing process, and the cloth strip may slowly lengthen during the continuous rubbing process, resulting in unstable friction force of the cloth strip, especially for elastic fabric, the device may not be able to circulate normally due to the creep of the fabric, thereby affecting the accuracy of the detection result; 2. The device can only obtain the dynamic hair and rubbing breaking performance of the fabric, and cannot simultaneously obtain the creep, real-time appearance and other performances of the fabric; 3. When the cloth strip is detected, the cloth strip is not protected, and the edge of the cloth strip is exposed outside, so that the cloth strip cannot be detected for hair and other performances.

[0005] Therefore, it is necessary to design an improved fabric multi-performance index synchronous detection device and detection method based on circular friction to solve the above problems. SUMMARY

[0006] The purpose of the present application is to provide a fabric multi-performance index synchronous detection device and detection method based on circular friction, by setting a circular friction closed loop, and setting a free-fall tension adjusting type static detection unit on the loop, ensuring that the fabric strip always maintains a constant tension during the circular friction process, so that the friction force of the fabric strip tends to be stable; by setting a hair and appearance detection unit, real-time collection of hair data, appearance data, hair raising and creep data of the fabric strip is realized, and the multi-performance index synchronous detection of the fabric strip is realized; when the fabric strip is detected, the fabric strip is pretreated by double-sided tape, which can accurately detect the friction data of one side of the fabric strip and reduce the detection error.

[0007] In order to achieve the above-mentioned purposes, the application provides a fabric multi-performance index synchronous detection device based on cyclic friction, which comprises a friction unit, a first cloth guide unit, a tension-adjustable static electricity detection unit and a hair and appearance detection unit; the friction unit is used for cyclically and repeatedly rubbing a fabric strip; the tension-adjustable static electricity detection unit is a free-fall tension-adjustable static electricity detection unit, is located right behind the first cloth guide unit and is used for automatically and timely adjusting the tension of the fabric strip in the cyclic process; the hair and appearance detection unit is used for realizing the multi-performance index synchronous detection of the fabric strip and comprises a first transmission device used for providing transmission power for the fabric strip; the fabric strip needs to be pretreated before detection.

[0008] As a further improvement of the application, the tension-adjustable static electricity detection unit comprises a slide rail and a pulley arranged on the slide rail, the fabric strip introduced through the cloth guide unit passes below the pulley and enters the hair and appearance detection unit; the movement direction of the pulley and the movement direction of the fabric strip are perpendicular to each other.

[0009] As a further improvement of the application, the slide rail is provided with a displacement scale line, which is used for obtaining the dynamic creep data of the fabric strip.

[0010] As a further improvement of the application, the friction unit comprises a friction roller, a speed-adjusting switch and a second transmission device; the speed-adjusting switch is used for adjusting the rotating speed of the friction roller, and the second transmission device is used for providing power for the friction roller.

[0011] As a further improvement of the application, the hair and appearance detection unit further comprises an image acquisition device, a hair acquisition module, a displacement sensor, a data processing module and a cloth guide module; the cloth guide module and the first transmission device are respectively located before and after the hair acquisition module along the transmission direction of the fabric strip; the data processing module is used for converting the hair data collected by the hair acquisition module into the hair root number in the unit area of the fabric strip and classifying the hair root number according to the hair length.

[0012] As a further improvement of the application, the first cloth guide unit comprises a plurality of first cloth guide rollers and a fixing plate used for mounting the first cloth guide rollers; the plurality of first cloth guide rollers are arranged in a 2xN form on the fixing plate, N is the number of rows of the first cloth guide rollers, and 2 is the number of the first cloth guide rollers arranged in each row; the tension-adjustable static electricity detection unit is mounted on the fixing plate.

[0013] As a further improvement of the present application, the fabric multi-performance index synchronous detection device based on cyclic friction further comprises a second cloth guiding unit arranged between the tension-adjustable static electricity detection unit and the hairiness and appearance detection unit, the second cloth guiding unit is installed on the fixed plate and comprises two second cloth guiding rollers arranged vertically.

[0014] To achieve the above-mentioned application purposes, the present application provides a fabric multi-performance index synchronous detection method based on cyclic friction, which is detected by the fabric multi-performance index synchronous detection device based on cyclic friction described above and comprises the following steps:

[0015] S1. A preset length of the fabric strip subjected to protection pretreatment is sequentially threaded through the friction unit, the cloth guiding unit, the tension-adjustable static electricity detection unit and the hairiness and appearance detection unit to form a circulating transmission loop.

[0016] S2. The hairiness and appearance detection unit and the friction unit are started to drive the fabric strip at a uniform speed and acquire the hairiness length, quantity and appearance of the fabric strip in real time.

[0017] S3. All the data after detection are processed to obtain multiple sets of performance data of the fabric strip.

[0018] As a further improvement of the present application, the protection pretreatment of the fabric strip specifically comprises the following steps: double-sided adhesive tapes are pasted on the middle part of the fabric strip in the width direction, the two sides of the fabric strip are folded to the middle part to make the double-sided adhesive tapes bond the two side edges of the fabric strip; then a layer of double-sided adhesive tapes is pasted on the upper layer of the bonding part of the fabric strip, and the backing paper of the double-sided adhesive tapes on the upper layer is reserved.

[0019] As a further improvement of the present application, the elasticity of the double-sided adhesive tapes matches the elasticity of the fabric strip; the width of the double-sided adhesive tapes is half of the width of the fabric strip.

[0020] The present application has the following beneficial effects:

[0021] (1) The application provides a fabric multi-performance index synchronous detection device based on circular friction, which is characterized in that a circular friction closed loop is arranged, a free-fall tension-adjusting electrostatic detection unit is arranged on the loop, the fabric strip always maintains a constant tension during the circular friction process, the friction force on the fabric strip tends to be stable, a hair and appearance detection unit is arranged, hair data, appearance data, fuzz and creep data of the fabric strip are collected in real time, the structure and appearance changes of the fabric strip after being rubbed in actual use are simulated and predicted through processing of the data, and the multi-performance index synchronous detection of the fabric strip is realized; and a speed regulating switch is arranged to adjust the rotating speed of the friction roller and the rotating direction of the friction roller, the friction force on the fabric strip is changed in real time according to actual conditions, and the application is more beneficial to practical application.

[0022] (2) When the fabric strip is detected, the fabric strip is pretreated by double-sided tape, the edges of the fabric strip are adhered to the inside of the double-sided tape, the fixed effect of the double-sided tape prevents the fabric strip edges from scattering or deforming to cause unstable detection results, the friction data of one side of the fabric strip can be accurately detected, and the detection error is reduced; meanwhile, the double-sided tape is used as a framework through the fixed effect of the double-sided tape, the double-sided tape provides certain shaping and supporting effects for the fabric strip, the application range of the device is wider, the obtained data is more accurate, and the device is especially suitable for knitted fabrics, woven fabrics and other fabric strips with edges prone to scattering or deforming, such as wool fabric, non-woven fabric and the like, so that the technical problems that the existing hair test technology and device cannot quickly and synchronously test multiple indexes of knitted fabrics and non-woven fabrics are solved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the application based on the circular friction of the fabric multi-performance index synchronous detection device.

[0024] Figure 2 It is Figure 1 It is a sectional structure schematic diagram of the tension-adjusting electrostatic detection unit.

[0025] Figure 3 It is a flowchart of the fabric strip pretreatment.

[0026] REFERENCE NUMERALS

[0027] 1-friction unit; 2-first cloth guide unit; 3-tension-adjustable electrostatic detection unit; 4-hairiness and appearance detection unit; 5-fabric strip; 6-second cloth guide unit; 7-double-sided adhesive tape; 11-friction roller; 12-speed regulating switch; 13-fifth cloth guide roller; 21-first cloth guide roller; 22-fixing plate; 31-sliding rail; 32-pulley; 41-image acquisition device; 42-hairiness acquisition module; 43-third cloth guide roller; 44-fourth cloth guide roller; 45-driving roller; 46-driven roller. DETAILED DESCRIPTION

[0028] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in detail below in conjunction with the drawings and specific embodiments.

[0029] Here, it also needs to be noted that, in order to avoid the present application being obscured by unnecessary details, only the structures and / or processing steps closely related to the scheme of the present application are shown in the drawings, and other details not closely related to the present application are omitted.

[0030] In addition, it also needs to be noted that the terms "comprise", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0031] Please refer to Figures 1 to 2 As shown in the drawings, the present application provides a fabric multi-performance index synchronous detection device based on cyclic friction, comprising a friction unit 1, a first cloth guide unit 2, a tension-adjustable electrostatic detection unit 3 and a hairiness and appearance detection unit 4; the friction unit 1 is used for cyclically and repeatedly rubbing the fabric strip 5; the tension-adjustable electrostatic detection unit 3 is a free-fall tension-adjustable electrostatic detection unit 3, located directly behind the first cloth guide unit 2, used for real-time regulation and control of the tension of the fabric strip 5 in the cyclic process and detection of friction electrostatic charge, to ensure that the fabric strip 5 is always under constant tension during the entire detection process; the hairiness and appearance detection unit 4 comprises a first transmission device for providing transmission power for the fabric strip 5. Specifically, the fabric strip 5 of a preset length, which has been pre-protected and pre-processed in a closed loop, enters the cloth guide unit 2 after being rubbed by the friction unit 1, the cloth guide unit 2 guides the fabric strip 5 into the tension-adjustable electrostatic detection unit 3, the tension-adjustable electrostatic detection unit 3 transmits the fabric strip 5 into the hairiness and appearance detection unit 4 with constant tension through its own gravity, realizing synchronous detection of the multi-performance index of the fabric strip 5; after the detection is completed, the fabric strip 5 again enters the friction unit 1 from the hairiness and appearance detection unit 4, and enters the next cycle.

[0032] For the fabric strips 5 such as knitted fabric, woven fabric, etc. with edges easily scattered or deformed, such as wool fabric, non-woven fabric, etc., when such fabric strips 5 are detected, the detection results will be affected due to the scattered or deformed edges, and even the termination of the cycle process, thus the fabric strips 5 need to be pre-processed for protection. As shown in Figure 3 The protection pre-processing specifically includes: first, the fabric strips 5 are unfolded and spread, and double-sided adhesive tape 7 is pasted on the middle of the fabric strips 5 along the width direction; then, the two side edges of the fabric strips 5 are folded to the middle, so that the double-sided adhesive tape 7 bonds the two sides of the fabric strips 5; finally, another layer of double-sided adhesive tape 7 is pasted on the upper layer of the bonded part of the fabric strips 5 (the liner paper outside the layer of double-sided adhesive tape 7 is reserved), obtaining the fabric strips 5 with a single structure with one side being the fabric strips 5 and the other side being the protective layer of the double-sided adhesive tape 7, and the fabric side of the fabric strips 5 with a single structure is tightly rubbed against the rubbing unit 1. By such operation, not only the edges of the fabric strips 5 are bonded by the double-sided adhesive tape 7 to prevent the edges from being scattered or deformed, but also the double-sided adhesive tape 7 serves as a framework to provide certain support to the fabric strips 5. For the fabric strips 5 with elasticity, the elastic double-sided adhesive tape 7 with elasticity matching the elasticity of the fabric strips 5 can be provided to reinforce the elastic fabric strips 5. In addition, the width of the double-sided adhesive tape 7 is preferably half of the width of the fabric strips 5.

[0033] As shown in Figure 1 The rubbing unit 1 includes a rubbing roller 11, a speed regulating switch 12 and a second transmission device (not shown in the figure). The second transmission device is used to provide power for the rubbing roller 11 to continuously rotate to repeatedly rub the fabric strips 5. The speed regulating switch 12 is used to adjust the rotating speed of the rubbing roller 11, and the friction force on the fabric strips 5 is different with different rotating speeds; with the increase of the rotating speed, the friction force on the fabric strips 5 is continuously increased, and in the actual test process, the rotating speed of the rubbing roller 11 can be freely adjusted to adjust the friction force on the fabric strips 5.

[0034] In the embodiment, the rubbing unit 1 further includes a fifth fabric guide roller 13 arranged at the inlet end of the rubbing roller 11, and the fabric strips 5 output from the hairiness and appearance detection unit 4 are guided into the rubbing roller 11 by the fifth fabric guide roller 13, and the fabric side of the fabric strips 5 is tightly rubbed against the rubbing roller 11.

[0035] The first fabric guide unit 2 includes a plurality of first fabric guide rollers 21 and a fixed plate 22 for mounting the first fabric guide rollers 21. As shown in Figure 1As shown, several first guide rollers 21 are arranged in a 2×N configuration on the fixed plate 22, where N represents the number of rows of first guide rollers 21 and 2 represents the number of first guide rollers 21 in each row. This arrangement reduces the horizontal path length, allowing longer fabric strips 5 to circulate continuously in a relatively compact space, saving space for the detection device, and making the measured results more representative. Specifically, after the fabric strip 5 is guided out from the friction roller 11, it passes through the two first guide rollers 21 in each row from bottom to top, and then enters the tension-adjustable electrostatic detection unit 3.

[0036] like Figure 1 and Figure 2 As shown, the tension-adjustable electrostatic detection unit 3 is mounted on the fixed plate 22 and located directly behind the first fabric guiding unit 2. It includes a slide rail 31 and a pulley 32 mounted on the slide rail 31. The fabric strip 5 guided by the first fabric guiding unit 2 passes under the pulley 32 and enters the fuzz and appearance detection unit 4. The movement direction of the pulley 32 is perpendicular to the movement direction of the fabric strip 5. The weight of the pulley 32 in the tension-adjustable electrostatic detection unit 3 is correspondingly set according to the width and thickness of the fabric strip 5; the wider and thicker the fabric strip 5, the heavier the pulley 32. A certain distance exists between the tension-adjustable electrostatic detection unit 3 and the first fabric guiding unit 2 to ensure that the transmission of the fabric strip 5 is not affected.

[0037] In some embodiments, the slide rail 31 is provided with displacement scale lines for acquiring dynamic creep data of the fabric strip 5. Specifically, during cyclic friction, the fabric strip 5 will slowly increase in length due to creep (especially for elastic fabric strips). At this time, the pulley 32 automatically adjusts the tension of the fabric strip 5 in real time by relying on its own gravity, so that the fabric strip 5 is always transmitted to the fuzz and appearance detection unit 4 with a constant tension, thereby ensuring the stability of friction and transmission of the fabric strip 5 and improving the stability and accuracy of detection. The weight of the pulley 32 is in the range of 2-20 grams, and should not be too large or too small: if the weight of the pulley 32 is too large, it will lead to excessive tension, unexpected deformation, elongation and wrinkling of the fabric strip 5, thereby affecting the friction uniformity of the fabric strip 5 surface and the accurate projection measurement of fuzz; if the weight is too small, it will not be able to weaken the large fluctuations in the tension of the fabric strip 5 caused by friction, thus making it difficult to achieve stable downward tension adjustment.

[0038] Specifically, a fabric that generates static electricity after rubbing with the fabric strip 5 is placed in the guide groove of the first guide roller 21. The fabric is wrapped around the surface of the guide groove of the first guide roller 21 so that the friction surface of the tested fabric strip 5 acquires static charge after repeated friction. Preferably, an electrostatic meter is connected to the pulley 32 to measure the change in surface charge of the fabric strip 5 after repeated friction (i.e., detect the triboelectric static charge) online, so as to reflect the triboelectric power generation capability between different fabric materials.

[0039] The fabric multi-performance index synchronous detection device based on cyclic friction also includes a second fabric guide unit 6 disposed between the tension-adjustable electrostatic detection unit 3 and the fuzz and appearance detection unit 4. The second fabric guide unit 6 is mounted on the fixed plate 22. The second fabric guide unit 6 includes two vertically arranged second fabric guide rollers. The fabric strip 5 is guided from the tension-adjustable electrostatic detection unit 3 onto the upper second fabric guide roller, and then guided out from the lower second fabric guide roller and into the fuzz and appearance detection unit 4.

[0040] The feather and appearance inspection unit 4 includes an image acquisition device 41, a feather acquisition module 42, a displacement sensor (not shown in the figure), a data processing module (not shown in the figure), a first transmission device, and a guide cloth module; the displacement sensor is used to record the displacement scale changes on the slide rail 31 in real time. Figure 1 As shown, the first transmission device includes a driving roller 45 and a driven roller 46, with the driving roller 45 providing a power source for the transmission of the fabric strip 5; the guide module includes a third guide roller 43 and a fourth guide roller 44. Specifically, the fabric strip 5 is guided into the fuzz and appearance detection unit 4 via the second guide unit 6, and first passes through the image acquisition device 41 to obtain an image of the appearance of the fabric strip 5. The image acquisition device 41 can be a high-speed photography device. Next, the fabric strip 5 is fed into the fuzz collection module 42 via the third guide roller 43 and the fourth guide roller 44. The fuzz collection module 42 collects the fuzz data of the fabric strip 5. The data processing module converts the collected fuzz data into the number of fuzz fibers per unit area of ​​the fabric strip 5, and classifies the number of fuzz fibers according to their length, for example, providing data for 1, 3, 5, and 10 mm fuzz fibers. At the same time, the displacement sensor collects the displacement scale on the slide rail 31 to calculate the dynamic creep elongation of the fabric strip 5. Each loop generates a set of fuzz data, and finally, through curve fitting, other performance data such as wear resistance and creep of the fabric strip 5 are obtained. Finally, the fabric strip 5 is led out from the outlet of the fuzz collection module 42 through the active roller 45 and the driven roller 46 to the friction unit 4, and enters the next loop.

[0041] In summary, the detection device of this invention can correlate multiple sets of data one-to-one, thereby enabling a comprehensive evaluation of the performance of the fabric strip 5. For example, by comparing the fuzz data and creep elongation data of the fabric strip 5 at different cycle counts, the combined effect of friction on the fuzz and creep of the fabric strip 5 can be determined. Through the comprehensive evaluation of multiple sets of data, a more comprehensive and reasonable evaluation and prediction of the performance of the fabric strip 5 can be made.

[0042] This invention also provides a method for simultaneous detection of multiple performance indicators of fabrics based on cyclic friction, using the aforementioned device for simultaneous detection of multiple performance indicators of fabrics based on cyclic friction, and includes the following steps:

[0043] S1. A fabric strip 5 of a preset length is subjected to a protective pretreatment, obtaining a single-sided fabric strip 5 with one side being the fabric strip 5 and the other side being a double-sided adhesive tape 7 protective layer, and then the fabric strip 5 is sequentially threaded through the friction unit 1, the fabric guiding unit 2, the tension-adjustable static electricity detection unit 3 and the hairiness and appearance detection unit 4, forming a circulating transmission loop.

[0044] S2. The hairiness and appearance detection unit 4 and the second transmission device are started, and the fabric strip 5 starts to be driven at a constant speed while being continuously rubbed by the friction roller 11, and the hairiness and appearance detection unit 4 obtains performance parameters such as hairiness length, number, number of pilling and balling, weight loss and creep of the fabric strip 5 in real time.

[0045] S3. All the data after detection are processed, obtaining multiple sets of performance data of the fabric strip 5.

[0046] The preset length of the closed loop fabric strip 5 is 10 meters. The driving speed of the fabric strip 5 is 5-100 meters / minute, preferably 30 meters / minute. The friction force of the friction unit 1 is determined by the surface roughness of the fabric strip 5, the roughness of the sandpaper wrapped outside the friction unit 1 and the weight of the pulley 32, wherein the greater the roughness of the sandpaper wrapped outside the friction unit 1, the greater the friction force, and the heavier the weight of the pulley 32, the greater the friction force.

[0047] Specifically, the multiple sets of performance data of the fabric strip 5 include real-time hairiness data, cycle abrasion data, pilling and balling data, dynamic creep data, friction weight loss data, friction appearance pilling and balling data and friction electrostatic charge data of the fabric strip 5. The real-time hairiness data is obtained by the hairiness collection module 42; the cycle abrasion data and the pilling and balling data are obtained by the hairiness collection module 42 or the image collection device 41; the dynamic creep data is obtained by the real-time displacement data of the pulley 32; the friction weight loss data is obtained by comparing the weight after friction with the initial weight; the friction appearance pilling and balling data is obtained by the image collection device 41; and the friction electrostatic charge data is obtained by the electrostatic meter outside the pulley 32. For example, the fabric strip 5 will be subjected to a certain repeated friction force in the later use process, and by equating the friction force of the present application with the friction force in the actual use process of the fabric strip 5, the dynamic hairiness and creep data changes are tested, and the performance of the fabric strip 5 is simulated and predicted.

[0048] In summary, the application provides a fabric multi-performance index synchronous detection device and method based on circulating friction, which sets a circulating friction closed loop and sets a free-fall tension-adjusting electrostatic detection unit on the loop, ensures that the fabric strip always maintains constant tension during the circulating friction process, and makes the friction force on the fabric strip tend to be stable; by setting a hair and appearance detection unit, real-time collection of hair data, appearance data, fuzz and creep data of the fabric strip is realized, and through processing of each data, the structural appearance change of the fabric strip after being rubbed in actual use is simulated and predicted, and the multi-performance index synchronous detection of the fabric strip is realized; when the fabric strip is detected, the fabric strip is pretreated by double-sided tape, the edges of the fabric strip are adhered inside the double-sided tape, through the fixing effect of the double-sided tape, the unstable detection result caused by the falling or deformation of the edges of the fabric strip is prevented, the friction data of one side of the fabric strip can be accurately detected, the detection error is reduced, the application range of the device is wider, the obtained data is more accurate, and the device is especially suitable for knitted fabrics, woven fabrics and other fabric strips with edges prone to falling or deformation, such as wool fabric, non-woven fabric and the like.

[0049] The above examples are only used to illustrate the technical solutions of the application and not to limit the application, although the application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the application.

Claims

1. A device for simultaneously detecting multiple performance indicators of a fabric based on cyclic rubbing, characterized in that, The device comprises a friction unit, a first cloth guiding unit, a tension-adjustable static electricity detecting unit and a hair and appearance detecting unit; the friction unit is used for repeatedly rubbing the fabric strip; the tension-adjustable static electricity detecting unit is a free-fall tension-adjustable static electricity detecting unit, which is located right behind the first cloth guiding unit and is used for automatically adjusting the tension of the fabric strip in the circulation process; The hair and appearance detecting unit is used for realizing the synchronous detection of multiple performance indexes of the fabric strip, and comprises a first transmission device used for providing transmission power for the fabric strip; the fabric strip needs to be pretreated before detection; The tension-adjustable static electricity detecting unit comprises a sliding rail and a pulley arranged on the sliding rail; the fabric strip guided by the first cloth guiding unit passes below the pulley and enters the hair and appearance detecting unit; the moving direction of the pulley is perpendicular to the moving direction of the fabric strip; The first cloth guiding unit comprises a plurality of first cloth guiding rollers and a fixing plate used for mounting the first cloth guiding rollers; the first cloth guiding rollers are arranged on the fixing plate in a 2×N form, wherein N is the number of rows of the first cloth guiding rollers, and 2 is the number of the first cloth guiding rollers arranged in each row; the tension-adjustable static electricity detecting unit is mounted on the fixing plate; The device further comprises a second cloth guiding unit arranged between the tension-adjustable static electricity detecting unit and the hair and appearance detecting unit; the second cloth guiding unit is mounted on the fixing plate and comprises two vertically arranged second cloth guiding rollers; The hair and appearance detecting unit further comprises an image acquisition device, a hair acquisition module, a displacement sensor, a data processing module and a cloth guiding module; the cloth guiding module and the first transmission device are located before and after the hair acquisition module along the transmission direction of the fabric strip; the data processing module is used for converting the hair data collected by the hair acquisition module into the number of hairs per unit area of the fabric strip and classifying the number of hairs according to the length of the hairs.

2. The cyclic friction-based fabric multi-property index simultaneous detection device according to claim 1, characterized in that, The sliding rail is provided with a displacement scale line, which is used for obtaining the dynamic creep data of the fabric strip.

3. The cyclic friction based multi-performance index synchronous detection device for fabric according to claim 1, characterized in that, The friction unit comprises a friction roller, a speed regulating switch and a second transmission device; the speed regulating switch is used for adjusting the rotating speed of the friction roller; and the second transmission device is used for providing power for the friction roller.

4. A method for simultaneously detecting multiple performance indicators of a fabric based on cyclic rubbing, characterized in that, The device is used for detecting the fabric strip, and the detection comprises the following steps: S1. The fabric strip of a preset length is sequentially guided through the friction unit, the first cloth guiding unit, the tension-adjustable static electricity detecting unit and the hair and appearance detecting unit to form a circulating transmission loop; S2. The hair and appearance detecting unit and the friction unit are started to drive the fabric strip at a constant speed and to obtain the length, number and appearance of the hairs on the fabric strip in real time; S3. All the data after detection are processed to obtain multiple groups of performance data of the fabric strip.

5. The method according to claim 4, wherein, The protective pretreatment of the fabric strip is specifically as follows: a double-sided adhesive tape is pasted on the middle part of the fabric strip in the width direction, the two sides of the fabric strip are folded towards the middle part, so that the double-sided adhesive tape bonds the two side edges of the fabric strip; then a layer of double-sided adhesive tape is pasted on the upper layer of the bonded part of the fabric strip, and the backing paper of the double-sided adhesive tape on the upper layer is reserved.

6. The method according to claim 5, wherein, The elasticity of the double-sided adhesive tape matches the elasticity of the fabric strip; the width of the double-sided adhesive tape is half of the width of the fabric strip.

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