A tensile elastic detection device and method based on blended fabric production

Abstract

The application discloses a kind of tensile elasticity detection device and detection method based on blended fabric production, it is related to blended fabric detection technical field, including winding mechanism and the detection machine box of setting in winding mechanism one side, the fabric in winding mechanism passes through detection machine box conveying, partition clamping mechanism is set in detection machine box;Partition clamping mechanism one side corresponds the partition detection mechanism of fabric conveying downstream, and is used to detect the elasticity performance of blended fabric.The application is by setting partition clamping mechanism, by multiple groups of lower clamping fixed base and upper clamping fixed base along the equal interval of fabric width, fabric is divided into multiple independent detection partition along width, realize the physical and mechanical complete isolation of each partition with the isolation gasket between adjacent clamping seat, realize the partition independent clamping and stress isolation of fabric full width, ensure that the mechanical property data of each partition is independently collected without cross interference, accurately capture the local performance change caused by fabric width direction microdefect.

Description

Technical Field

[0001] This invention relates to the field of blended fabric testing technology, and in particular to a tensile elasticity testing device and method based on blended fabric production. Background Technology

[0002] Blended fabrics are a core basic category in the textile industry, widely used in apparel, home textiles, industrial textiles, and many other downstream sectors. In the continuous weaving and dyeing processes of blended fabrics, real-time online testing of the fabric's tensile elasticity is necessary to intercept defective products, optimize production process parameters, and ensure the stability of finished batch quality. However, existing tensile elasticity testing devices still have the following shortcomings in use:

[0003] For example, Chinese Patent CN120063918A discloses a multi-station testing device for fabric elasticity testing, which includes an assembly frame. An upper support plate is fixedly installed on the top of the assembly frame. A square viewing window is opened at the center of the upper support plate. An intermittent pressure mechanism is provided at the bottom of the assembly frame. A release clamping mechanism is provided on the top of the upper support plate. The intermittent pressure mechanism includes two lower support plates. A wiring base is movably installed inside the square viewing window. A macro camera and two supplementary lighting plates are fixedly connected to the top of the wiring base. The release clamping mechanism includes two sets of load-bearing frames. A set of threaded rods is movably inserted inside each load-bearing frame. An outer support arm is fixedly sleeved at one end of each threaded rod. This mechanism, through the coordinated operation of system modules and mechanical components, solves many drawbacks of traditional equipment, effectively reduces the difficulty of equipment operation, improves fabric testing efficiency, and reduces labor costs.

[0004] During the weaving and dyeing processes of blended fabrics, millimeter-level micro-defects such as yarn knots, yarn breaks, fiber agglomerations, and dyeing stains are unavoidable. These micro-defects can cause a sharp drop in localized tensile strength and abnormal elastic recovery performance. Existing testing devices use a full-width clamping mechanism, which, during tensile testing, concentrates and disperses stress from the micro-defect across the entire clamping width. This causes the abnormal tensile elasticity at the micro-defect to be masked by the average performance of the entire width, making it impossible to accurately locate localized abnormal areas along the width. Furthermore, in this full-width clamping mode, the fabric at the micro-defect may break prematurely during stretching, making it impossible to test the elastic recovery performance of that area. Consequently, various micro-defects in the blended fabric production process cannot be fully and accurately identified, allowing a large amount of fabric with hidden performance defects to flow into subsequent processing stages, resulting in a significant decrease in the finished product qualification rate. Summary of the Invention

[0005] The purpose of this application is to provide a tensile elasticity testing device and method based on blended fabric production, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this application provides the following technical solution: a tensile elasticity testing device based on blended fabric production, comprising a winding mechanism and a testing housing disposed on one side of the winding mechanism, wherein the fabric in the winding mechanism is conveyed through the testing housing, and a partitioned clamping mechanism is disposed within the testing housing; a partitioned testing mechanism is disposed on one side of the partitioned clamping mechanism corresponding to the downstream of the fabric conveying, and is used to test the elasticity properties of the blended fabric; the partitioned clamping mechanism includes:

[0007] Multiple lower clamping and fixing seats are disposed below the fabric inside the detection machine housing, and the multiple lower clamping and fixing seats are arranged at equal intervals along the width of the fabric;

[0008] Multiple upper clamping and fixing seats are arranged above the fabric inside the inspection machine box, and the multiple upper clamping and fixing seats are arranged in a one-to-one correspondence with the lower clamping and fixing seats in the vertical direction;

[0009] Multiple first cylinders are installed in the testing machine housing, and the output end of the first cylinder is connected to the upper clamping fixed seat and used to drive the upper clamping fixed seat to rise and fall; and the fabric clamping width of each lower clamping fixed seat corresponds to an independent partition.

[0010] And multiple isolation pads, with adjacent lower clamping fixing seats and adjacent upper clamping fixing seats connected by isolation pads;

[0011] The partitioned detection mechanism includes a fixed-end detection mechanism, a synchronous drive mechanism, and a mobile-end detection mechanism; the fixed-end detection mechanism is located downstream of the fabric of the partitioned clamping mechanism, and the mobile-end detection mechanism is located within the synchronous drive mechanism; the synchronous drive mechanism is located downstream of the fabric of the fixed-end detection mechanism and is used to drive the mobile-end detection mechanism to move along the length of the fabric within the detection housing.

[0012] Preferably, the clamping surfaces of the lower clamping fixing seat and the upper clamping fixing seat are provided with matching first anti-slip grooves; when the lower clamping fixing seat and the upper clamping fixing seat cooperate to clamp the fabric, the static friction between them and the fabric is increased by the first anti-slip grooves.

[0013] Preferably, the fabric inlet and outlet of the testing chamber are both equipped with guide wheel sets, which are used to control the fabric to be conveyed in the horizontal direction.

[0014] Preferably, the fixed-end detection mechanism includes multiple first mounting seats, a first pressure sensor, a first lower fabric clamping block, a first upper fabric clamping block, a second cylinder, a first connecting block, and a first fisheye connector; the first mounting seat is fixed to one side of the lower clamping fixed seat, the first pressure sensor is mounted on the first mounting seat, the first lower fabric clamping block is disposed on one side of the lower clamping fixed seat, and the detection end of the first pressure sensor is connected to the first lower fabric clamping block; the second cylinder is installed inside the detection housing, the first upper fabric clamping block is connected to the output shaft of the second cylinder, and the first upper fabric clamping block is positioned directly above the first lower fabric clamping block; the first connecting block is disposed on the top of the first upper fabric clamping block, the first fisheye connector is coaxially connected to the output shaft of the second cylinder, and the first fisheye connector is connected to the first upper fabric clamping block through the first connecting block.

[0015] Preferably, the synchronous drive mechanism includes a mounting frame, a pair of linear modules, and a grating ruler; the pair of linear modules are mounted on the inner walls of both sides of the detection chassis, the mounting frame is fixed between the output ends of the pair of linear modules, and the grating ruler is mounted on the linear modules; the mobile end detection mechanism is disposed on the mounting frame.

[0016] Preferably, the mobile terminal detection mechanism includes multiple second mounting seats, a second pressure sensor, a second lower fabric clamping block, a second upper fabric clamping block, a third cylinder, a second connecting block, and a second fisheye connector. The multiple second mounting seats are all fixed to a mounting frame, and each second mounting seat is aligned with an independent partition. The second pressure sensor is mounted on a second mounting seat. The second lower fabric clamping block is disposed on the mounting frame, and the detection end of the second pressure sensor is connected to the second lower fabric clamping block. The third cylinder is installed inside the detection housing and is connected to the output shaft of the second upper fabric clamping block, with the second upper fabric clamping block positioned directly above the second lower fabric clamping block. The second connecting block is disposed on the top of the second upper fabric clamping block, and the second fisheye connector is coaxially connected to the output shaft of the third cylinder, with the second fisheye connector connected to the second upper fabric clamping block via the second connecting block.

[0017] Preferably, a laser displacement sensor is installed on the mounting bracket, and the detection end of the laser displacement sensor is positioned at the midpoint of the fabric detection area between the synchronous drive mechanism and the moving end detection mechanism.

[0018] Preferably, the bottom of both the first lower fabric clamping block and the second lower fabric clamping block are provided with sliding grooves, and two sets of positioning pulleys are fixed inside the detection housing; each set of positioning pulleys is respectively set in the bottom sliding groove of the first lower fabric clamping block and the second lower fabric clamping block, and is used to support the first lower fabric clamping block and the second lower fabric clamping block; the lower clamping fixing seat, the top clamping surfaces of the first lower fabric clamping block and the second lower fabric clamping block are all on the same plane.

[0019] Preferably, the inspection housing is equipped with a defect location mechanism; the defect location mechanism includes multiple line-scan industrial cameras and defect marking spray nozzles; each of the line-scan industrial cameras and defect marking spray nozzles corresponds to an independent partition, and both the line-scan industrial cameras and defect marking spray nozzles are installed inside the inspection housing. The line-scan industrial cameras are positioned downstream of the fabric on one side of the mobile inspection mechanism, and the defect marking spray nozzles are positioned downstream of the fabric on one side of the line-scan industrial cameras.

[0020] A method for testing tensile elasticity based on blended fabric production, employing the aforementioned tensile elasticity testing device for blended fabric production; specifically including the following steps:

[0021] Step 1, Width Section Positioning: As the fabric is wound up by the winding mechanism, when the fabric enters the detection area inside the detection machine, the upper clamping fixed seat is driven to descend by the first cylinder, so that the lower clamping fixed seat and the upper clamping fixed seat cooperate to clamp the fabric. At the same time, the isolation pads between the adjacent lower clamping fixed seats and the first cylinder achieve the section isolation positioning of the fabric in the width direction.

[0022] Step 2, Zoned Detection: After zoned isolation is completed, the fabric is clamped by the fixed-end detection mechanism and the mobile-end detection mechanism. Then, the mobile-end detection mechanism is driven by the synchronous drive mechanism to move away from the fixed-end detection mechanism to achieve fabric elasticity detection.

[0023] In summary, the technical effects and advantages of this invention are as follows:

[0024] 1. This invention, by setting up a partitioned clamping mechanism, divides the fabric into multiple independent detection zones along its width by using multiple sets of lower and upper clamping fixing seats arranged at equal intervals. The isolation pads between adjacent clamping seats achieve complete physical and mechanical isolation between each zone, enabling independent clamping and force isolation across the entire fabric width. This ensures independent acquisition of mechanical performance data for each zone without cross-interference, accurately capturing local performance changes caused by micro-defects in the fabric width direction, and precisely locating areas of abnormal tensile elasticity in blended fabrics, thus guaranteeing the authenticity and positioning accuracy of the test data.

[0025] 2. This invention establishes a zoned detection mechanism. A fixed-end detection mechanism and a mobile-end detection mechanism clamp the upstream and downstream ends of the fabric in each zone. A synchronous drive mechanism drives the mobile-end detection mechanism to perform constant-speed linear motion, achieving synchronous stretching of the fabric. A first pressure sensor and a second pressure sensor simultaneously collect bidirectional tensile data from each zone to form a closed-loop verification. A laser displacement sensor directly collects the actual deformation of the fabric throughout the stretching and rebound process, enabling synchronous detection of the tensile elasticity performance of each zone across the entire width. This ensures that the detection conditions for all zones are completely consistent, improving the accuracy of tensile and deformation data collection. It accurately characterizes the core performance indicators of blended fabrics, such as tensile strength and elastic recovery rate, and enables precise identification of hidden performance defects within the fabric.

[0026] 3. This invention, by setting up a defect location mechanism, uses a linear array industrial camera corresponding to each independent zone to collect high-definition images of the fabric surface in real time, and simultaneously matches the mechanical property test data of the corresponding zone. After completing the classification of fabric defect types, a visual mark is sprayed on the abnormal position by the defect mark spraying terminal of the corresponding zone, realizing the comprehensive identification and accurate location of visible defects on the surface and hidden defects in mechanical properties of blended fabrics. This significantly improves the identification coverage of fabric defects, realizes the visual marking of defect areas, facilitates the rapid sorting of non-conforming products in subsequent processes, and improves the finished product qualification rate and operating efficiency of the production line. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall second-angle three-dimensional structure of the present invention;

[0030] Figure 3 This is a partially cross-sectional, enlarged three-dimensional structural diagram of the detection chassis of the present invention;

[0031] Figure 4 This is a three-dimensional enlarged schematic diagram of the internal structure of the testing chassis of this invention;

[0032] Figure 5 This is an enlarged side view sectional diagram of the internal structure of the test chassis of the present invention;

[0033] Figure 6 This is a three-dimensional enlarged schematic diagram of part of the structure of the partition clamping mechanism and the partition detection mechanism of the present invention;

[0034] Figure 7 This is a three-dimensional enlarged schematic diagram of a portion of the partition detection mechanism of the present invention;

[0035] Figure 8 This is a partially cross-sectional, three-dimensional enlarged schematic diagram of a portion of the structure of this invention;

[0036] Figure 9 This is a three-dimensional enlarged structural schematic diagram of the synchronous drive mechanism of the present invention;

[0037] Figure 10 This is a flowchart of the method of the present invention.

[0038] In the diagram: 1. Winding mechanism; 2. Detection housing; 3. Guide wheel assembly; 4. Partition clamping mechanism; 41. Lower clamping fixing seat; 42. Upper clamping fixing seat; 43. First cylinder; 44. Isolation pad; 45. First anti-slip tooth groove; 5. Partition detection mechanism; 51. Fixed end detection mechanism; 511. First mounting seat; 512. First pressure sensor; 513. First lower fabric clamping block; 514. First upper fabric clamping block; 515. Second cylinder; 516. First connecting block; 517. First fisheye connector. 52. Synchronous drive mechanism; 521. Linear module; 522. Mounting bracket; 523. Grating ruler; 53. Mobile end detection mechanism; 531. Second mounting base; 532. Second pressure sensor; 533. Second lower fabric clamping block; 534. Second upper fabric clamping block; 535. Third cylinder; 536. Second connecting block; 537. Second fisheye connector; 538. Laser displacement sensor; 539. Positioning pulley; 6. Defect positioning mechanism; 61. Linear array industrial camera; 62. Defect marking spray nozzle. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1: Please refer to Figures 1-6The tensile elasticity testing device based on blended fabric production, as shown, includes a winding mechanism 1 and a testing housing 2 disposed on one side of the winding mechanism 1. The fabric in the winding mechanism 1 is conveyed through the testing housing 2. Guide wheel sets 3 are provided at both the fabric inlet and outlet ends of the testing housing 2 to control the fabric conveying in the horizontal direction. A partitioned clamping mechanism 4 is provided inside the testing housing 2. A partitioned testing mechanism 5 is provided on one side of the partitioned clamping mechanism 4 corresponding to the downstream of the fabric conveying, and is used to test the elasticity performance of the blended fabric. The partitioned clamping mechanism 4 includes: multiple lower clamping fixing seats 41, upper clamping fixing seats 42, a first cylinder 43, and isolation pads 44. The lower clamping fixing seats 41 are disposed below the fabric inside the testing housing 2, and the multiple lower clamping fixing seats 41 are arranged at equal intervals along the width of the fabric. The upper clamping fixing seats 42 are disposed above the fabric inside the testing housing 2, and the multiple upper clamping fixing seats 42 are vertically corresponding to the lower clamping fixing seats 41. The first cylinder 43 is installed in the testing housing 2. The output end of the first cylinder 43 is connected to the upper clamping fixed seat 42 and is used to drive the upper clamping fixed seat 42 to rise and fall; the fabric clamping width of each lower clamping fixed seat 41 corresponds to an independent partition; adjacent lower clamping fixed seats 41 and adjacent upper clamping fixed seats 42 are connected by isolation pads 44; the clamping surfaces of the lower clamping fixed seats 41 and the upper clamping fixed seats 42 are provided with matching first anti-slip grooves 45; when the lower clamping fixed seat 41 and the upper clamping fixed seat 42 cooperate to clamp the fabric, the static friction between the lower clamping fixed seat 41 and the upper clamping fixed seat 42 is increased by the first anti-slip grooves 45; the partition detection mechanism 5 includes a fixed end detection mechanism 51, a synchronous drive mechanism 52 and a moving end detection mechanism 53; the fixed end detection mechanism 51 is located downstream of the fabric of the partition clamping mechanism 4, and the moving end detection mechanism 53 is located on the synchronous drive mechanism 52; the synchronous drive mechanism 52 is located downstream of the fabric of the fixed end detection mechanism 51 and is used to drive the moving end detection mechanism 53 to move along the fabric length direction inside the detection housing 2.

[0041] It should be noted that, under the traction of the winding mechanism 1, the blended fabric enters from the fabric inlet end of the inspection box 2. After the guide wheel group 3 at the inlet end adjusts the conveying posture, it passes through the partition clamping mechanism 4 and the partition inspection mechanism 5 in sequence along the horizontal direction, and finally exits from the inspection box 2 through the guide wheel group 3 at the outlet end, returning to the winding mechanism 1 to complete the winding. When the fabric section to be inspected reaches the inspection station, the winding mechanism 1 stops traction, the fabric remains stationary, and the multiple first cylinders 43 in the partition clamping mechanism 4 synchronously drive the corresponding upper clamping fixing seat 42 to move downward, cooperating with the aligned lower clamping fixing seat 41 to divide the fabric into multiple independent partitions along the width direction. The isolation pad 44 between 41 and the adjacent upper clamping fixing seat 42 achieves physical and mechanical isolation between adjacent zones. The first anti-slip tooth groove 45 of the clamping surface of the lower clamping fixing seat 41 and the upper clamping fixing seat 42 meshes with each other, increasing the static friction between them and the fabric, and preventing the fabric from slipping during subsequent testing. After the zone clamping mechanism 4 completes the zone clamping of the fabric, the fixed end detection mechanism 51 and the moving end detection mechanism 53 in the zone detection mechanism 5 synchronously clamp the upstream and downstream ends of the corresponding zone fabric. The synchronous drive mechanism 52 drives the moving end detection mechanism 53 to make uniform linear motion along the fabric running direction, and synchronously applies tensile force to each zone fabric to complete the synchronous detection of tensile elasticity of each independent zone across the entire width.

[0042] By using multiple lower clamping fixtures 41 and upper clamping fixtures 42 arranged at equal intervals along the fabric width, independent clamping of the entire fabric width is achieved. With the help of the isolation pads 44 between adjacent clamping fixtures, stress concentration at micro-defects is completely avoided and dispersed across the entire fabric width, preventing local tensile elasticity abnormalities from being masked by the overall average performance. The meshing design of the first anti-slip groove 45 can significantly improve the static friction between the clamping surface and the fabric, avoiding data distortion caused by fabric slippage during stretching. Through the cooperation of the fixed end detection mechanism 51 and the moving end detection mechanism 53, synchronous tensile testing of each section of the entire fabric width is achieved. While ensuring testing efficiency, it ensures that the testing conditions of each section are completely consistent, eliminating systematic errors caused by differences in testing conditions.

[0043] See Figures 5-7The fixed-end detection mechanism 51 includes multiple first mounting bases 511, a first pressure sensor 512, a first lower fabric clamping block 513, a first upper fabric clamping block 514, a second cylinder 515, a first connecting block 516, and a first fisheye connector 517. It is understood that the first pressure sensor 512 is existing technology and will not be described in detail. The first mounting base 511 is fixed to one side of the lower clamping fixed base 41, the first pressure sensor 512 is mounted on the first mounting base 511, and the first lower fabric clamping block 513 is disposed on one side of the lower clamping fixed base 41. A pressure sensor 512 is connected to the detection end of a first lower fabric clamping block 513; a second cylinder 515 is installed inside the detection housing 2; a first upper fabric clamping block 514 is connected to the output shaft of the second cylinder 515, and the first upper fabric clamping block 514 is positioned directly above the first lower fabric clamping block 513; a first connecting block 516 is positioned on the top of the first upper fabric clamping block 514; a first fisheye connector 517 is coaxially connected to the output shaft of the second cylinder 515, and the first fisheye connector 517 is connected to the first upper fabric clamping block 514 through the first connecting block 516.

[0044] It should be noted that after the partition clamping mechanism 4 completes the partition clamping of the fabric, the second cylinder 515 in the fixed end detection mechanism 51 drives the first upper fabric clamping block 514 to move downward, cooperating with the first lower fabric clamping block 513 that is aligned, to clamp the upstream end of the corresponding partition fabric. The output shaft of the second cylinder 515 is connected to the first connecting block 516 through the first fisheye connector 517, which can only transmit the clamping force in the vertical direction and cannot transmit the axial force in the fabric stretching direction. The axial tension generated during the fabric stretching process will be completely transmitted to the detection end of the first pressure sensor 512 through the first lower fabric clamping block 513, so that the first pressure sensor 512 generates a deformation signal proportional to the magnitude of the tension, realizing the real-time acquisition of tension data during the stretching process of the corresponding partition fabric.

[0045] By setting the first fisheye connector 517, the axial force transmission path between the second cylinder 515 and the first upper fabric clamping block 514 is completely cut off, ensuring that the tension generated by the fabric stretching is completely transmitted to the first pressure sensor 512 through the first lower fabric clamping block 513, avoiding the distortion of detection data caused by tension bypass; each independent zone is equipped with an independent first pressure sensor 512, realizing the independent acquisition of tension data in each zone, with no data cross-interference between adjacent zones, and can accurately capture the small tension fluctuations caused by micro-defects.

[0046] See Figures 6-7 and Figure 9The synchronous drive mechanism 52 includes a mounting bracket 522, a pair of linear modules 521, and a grating ruler 523. It is understood that the linear modules 521 and the grating ruler 523 are existing technologies and will not be described in detail. The pair of linear modules 521 are installed on the inner walls of both sides of the detection housing 2, the mounting bracket 522 is fixed between the output ends of the pair of linear modules 521, and the grating ruler 523 is installed on the linear modules 521. The mobile end detection mechanism 53 is set on the mounting bracket 522.

[0047] It should be noted that after the fixed-end detection mechanism 51 completes the clamping and fixing of the upstream end of the fabric, a pair of linear modules 521 in the synchronous drive mechanism 52 start synchronously, driving the mounting frame 522 to make uniform linear motion along the fabric running direction, which in turn drives the moving-end detection mechanism 53 installed on the mounting frame 522 to move synchronously, realizing constant speed stretching of the fabric. The grating ruler 523 installed on the linear module 521 collects the actual displacement data of the mounting frame 522 in real time and feeds the displacement data back to the control system in real time, forming a closed-loop control of the entire stroke of the stretching displacement, ensuring that the control accuracy of the stretching rate and stretching displacement always meets the requirements of the detection standard. It is understood that the control system is existing technology and will not be described in detail.

[0048] A pair of synchronously operating linear modules 521 drive the mounting frame 522, ensuring that the mounting frame 522 moves without swaying or tipping during movement, and that the tensile displacement of each section across the entire width is completely consistent, thus eliminating systematic errors caused by differences in testing conditions from a mechanical structure perspective. The full-stroke closed-loop control of the grating ruler 523 can correct the transmission error and thermal deformation error of the linear module 521 in real time, ensuring that the control accuracy of the tensile displacement meets the testing standard requirements, and significantly improving the testing accuracy of fabric elongation and elastic recovery rate. The mounting frame 522 provides a unified high-rigidity mounting reference for the mobile testing mechanism 53, ensuring the motion synchronization of all mobile testing units and further improving the comparability of testing data from each section.

[0049] See Figures 6-9The mobile terminal testing mechanism 53 includes multiple second mounting bases 531, a second pressure sensor 532, a second lower fabric clamping block 533, a second upper fabric clamping block 534, a third cylinder 535, a second connecting block 536, and a second fisheye connector 537. The multiple second mounting bases 531 are all fixed to the mounting frame 522, and each second mounting base 531 is aligned with an independent partition. The second pressure sensor 532 is mounted on the second mounting base 531. The second lower fabric clamping block 533 is disposed on the mounting frame 522, and the detection end of the second pressure sensor 532 is connected to the second lower fabric clamping block 533. The third cylinder 535 is installed inside the testing housing 2, and the third cylinder 535 is connected to the second upper fabric clamping block. The output shaft of 534 is connected, and the second upper fabric clamping block 534 is positioned above the second lower fabric clamping block 533; the second connecting block 536 is positioned on the top of the second upper fabric clamping block 534, and the second fisheye connector 537 is coaxially connected to the output shaft of the third cylinder 535, and the second fisheye connector 537 is connected to the second upper fabric clamping block 534 through the second connecting block 536; a laser displacement sensor 538 is installed on the mounting bracket 522, and the detection end of the laser displacement sensor 538 is positioned in the middle of the fabric detection part between the synchronous drive mechanism 52 and the moving end detection mechanism 53; it is understood that the second pressure sensor 532 and the laser displacement sensor 538 are existing technologies and will not be described in detail.

[0050] It should be noted that while the mounting frame 522 moves, the third cylinder 535 in the mobile end detection mechanism 53 drives the second upper fabric clamping block 534 to move downward, cooperating with the aligned second lower fabric clamping block 533 to clamp the downstream end of the corresponding section of fabric. The output shaft of the third cylinder 535 is connected to the second connecting block 536 through the second fisheye connector 537, which can only transmit clamping force in the vertical direction and cannot transmit axial tension. During the stretching process, the tension of the fabric will act on the detection end of the second pressure sensor 532 at the same time, forming a bidirectional tension verification with the first pressure sensor 512. During the initial stretching test, the detection end of the laser displacement sensor 538 installed on the mounting frame 522 is directly opposite the middle position of the fabric detection part between the fixed end detection mechanism 51 and the mobile end detection mechanism 53, and collects the actual deformation data of the fabric during the entire stretching and rebound process in real time.

[0051] By setting the second fisheye connector 537, it is ensured that the tensile force of the moving end is completely transmitted to the second pressure sensor 532 through the second lower fabric clamping block 533, forming a two-way closed-loop verification with the first pressure sensor 512. This can accurately identify abnormal states such as fabric slippage, sensor zero-point drift, and clamping off-center loading, significantly reducing the error of the detection data. Each independent zone is equipped with an independent second pressure sensor 532, which works in conjunction with the first pressure sensor 512 to achieve bidirectional synchronous acquisition of tensile data in a single zone, further improving the accuracy of capturing tensile anomalies caused by micro-defects. The laser displacement sensor 538 directly collects the actual deformation of the fabric itself, greatly improving the accuracy of fabric elasticity performance testing and accurately identifying hidden performance defects that are not visible to the naked eye.

[0052] See Figure 8 The bottom of the first lower fabric clamping block 513 and the second lower fabric clamping block 533 are both provided with sliding grooves. Two sets of positioning pulleys 539 are fixed inside the detection housing 2. Each set of positioning pulleys 539 is respectively set in the bottom sliding groove of the first lower fabric clamping block 513 and the second lower fabric clamping block 533, and is used to support the first lower fabric clamping block 513 and the second lower fabric clamping block 533. The lower clamping fixing seat 41, the top clamping surfaces of the first lower fabric clamping block 513 and the second lower fabric clamping block 533 are all on the same plane.

[0053] It should be noted that the sliding grooves at the bottom of the first lower fabric clamping block 513 and the second lower fabric clamping block 533 cooperate with the positioning pulleys 539 fixedly installed inside the detection housing 2. The positioning pulleys 539 are embedded in the corresponding sliding grooves, providing vertical support and horizontal guidance for the first lower fabric clamping block 513 and the second lower fabric clamping block 533. At the same time, it ensures that the top clamping surfaces of the lower clamping fixing seat 41, the first lower fabric clamping block 513 and the second lower fabric clamping block 533 are always on the same plane, avoiding bending and twisting of the fabric during clamping and stretching, and ensuring that the tensile force is always transmitted along the fabric axis.

[0054] The positioning pulley 539, in conjunction with the slide groove, provides stable radial support for the first lower fabric clamping block 513 and the second lower fabric clamping block 533, preventing the clamping blocks from swaying or overturning during fabric stretching. This ensures that the forces on the first pressure sensor 512 and the second pressure sensor 532 are always coaxial along the axial direction, further improving the force measurement accuracy. The support of the positioning pulley 539 also ensures that all clamping surfaces of the lower clamping fixing seat 41, the first lower fabric clamping block 513, and the second lower fabric clamping block 533 are always on the same plane, avoiding lateral force caused by fabric bending and twisting, and eliminating the problems of distorted detection data and premature fabric tearing caused by off-center loading.

[0055] Example 2: The technical solution of this example differs from that of Example 1 in that: (See below) Figures 1-4 The inspection housing 2 is equipped with a defect positioning mechanism 6. The defect positioning mechanism 6 includes multiple line scan industrial cameras 61 and defect marking spray nozzles 62. It is understood that the line scan industrial cameras 61 and defect marking spray nozzles 62 are existing technologies and will not be described in detail. Each line scan industrial camera 61 and defect marking spray nozzle 62 corresponds to an independent partition. The line scan industrial cameras 61 and defect marking spray nozzles 62 are installed in the inspection housing 2. The line scan industrial cameras 61 are positioned downstream of the fabric on one side of the mobile inspection mechanism 53, and the defect marking spray nozzles 62 are positioned downstream of the fabric on one side of the line scan industrial cameras 61.

[0056] It should be noted that during the fabric stretching and rebound testing process, the linear industrial camera 61 in the defect location mechanism 6 acquires high-definition images of the fabric surface in real time for the corresponding independent zone. Each linear industrial camera 61 corresponds to an independent zone, accurately capturing visible micro-defects on the fabric surface such as yarn knots, broken yarns, fiber agglomerations, and dyeing stains. The control system links and matches the image data acquired by the linear industrial camera 61 with the mechanical property data acquired by the first pressure sensor 512, the second pressure sensor 532, and the laser displacement sensor 538 of the corresponding zone to distinguish between visible defects and latent defects that only manifest as abnormal tensile elasticity. When a fabric defect area is detected, the defect marking spray nozzle 62 of the corresponding zone sprays a washable mark on the fabric defect location, achieving precise positioning and visual marking of the defect location.

[0057] By using a linear array industrial camera 61 and a defect marking spray nozzle 62, which correspond one-to-one with the independent partitions, accurate identification and visual marking of defect locations are achieved. The deviation between the marking position and the defect position can be controlled within the minimum partition width, significantly improving defect positioning accuracy. Through the linkage and matching of mechanical performance data collected by the first pressure sensor 512, the second pressure sensor 532, and the laser displacement sensor 538 with the visual image data collected by the linear array industrial camera 61, both visible defects and invisible hidden performance defects on the fabric surface can be identified simultaneously, greatly improving the coverage of defect identification and preventing hidden defective fabric from flowing into subsequent processing steps. The independent partition design of the defect marking spray nozzle 62 triggers the spraying action only in abnormal partitions, without affecting the subsequent use of normal fabrics. At the same time, it facilitates the rapid sorting of defective products in subsequent processes, improving the operating efficiency of the production line and the finished product qualification rate.

[0058] See Figures 1-10 A method for testing tensile elasticity based on blended fabric production, employing the aforementioned tensile elasticity testing device based on blended fabric production; specifically including the following steps:

[0059] Step 1, Width Section Positioning: As the fabric is wound up by the winding mechanism 1, when the fabric enters the detection area inside the detection machine box 2, the upper clamping fixed seat 42 is driven down by the first cylinder 43, so that the lower clamping fixed seat 41 and the upper clamping fixed seat 42 cooperate to clamp the fabric. At the same time, the isolation pad 44 between the adjacent lower clamping fixed seat 41 and the first cylinder 43 achieves the section isolation positioning of the fabric in the width direction.

[0060] Step 2, Zoned Detection: After zoned isolation is completed, the fabric is clamped by the fixed end detection mechanism 51 and the mobile end detection mechanism 53, and then the mobile end detection mechanism 53 is driven by the synchronous drive mechanism 52 to move away from the fixed end detection mechanism 51 to realize the fabric elasticity detection.

[0061] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tensile elasticity testing device based on blended fabric production, comprising a winding mechanism (1) and a testing housing (2) disposed on one side of the winding mechanism (1), wherein the fabric in the winding mechanism (1) is conveyed through the testing housing (2), characterized in that: The testing chassis (2) is equipped with a partition clamping mechanism (4) and a partition testing mechanism (5); the partition clamping mechanism (4) includes: Multiple lower clamping fixing seats (41) are set below the fabric inside the detection box (2), and the multiple lower clamping fixing seats (41) are arranged at equal intervals along the width of the fabric; Multiple upper clamping and fixing seats (42) are set above the fabric inside the inspection box (2) and aligned with the lower clamping and fixing seats (41); Multiple first cylinders (43) are installed in the testing machine housing (2), and the output end of the first cylinder (43) is connected to the upper clamping fixing seat (42); the fabric clamping width of each lower clamping fixing seat (41) forms an independent partition; And multiple isolation pads (44), and adjacent lower clamping fixing seats (41) and adjacent upper clamping fixing seats (42) are connected by isolation pads (44); The partition detection mechanism (5) includes a fixed end detection mechanism (51), a synchronous drive mechanism (52), and a mobile end detection mechanism (53); the fixed end detection mechanism (51) is located downstream of the fabric of the partition clamping mechanism (4), and the mobile end detection mechanism (53) is located on the synchronous drive mechanism (52); the synchronous drive mechanism (52) is located downstream of the fabric of the fixed end detection mechanism (51).

2. The tensile elasticity testing device based on blended fabric production according to claim 1, characterized in that: The clamping surfaces of the lower clamping fixing seat (41) and the upper clamping fixing seat (42) are provided with matching first anti-slip grooves (45); when the lower clamping fixing seat (41) and the upper clamping fixing seat (42) cooperate to clamp the fabric, the static friction between the fabric and the fabric is increased by the first anti-slip grooves (45).

3. The tensile elasticity testing device based on blended fabric production according to claim 1, characterized in that: The fabric inlet and outlet of the testing housing (2) are both equipped with guide wheel sets (3), which are used to control the fabric to be conveyed in the horizontal direction.

4. The tensile elasticity testing device based on blended fabric production according to claim 1, characterized in that: The fixed-end detection mechanism (51) includes multiple first mounting bases (511), a first pressure sensor (512), a first lower fabric clamping block (513), a first upper fabric clamping block (514), a second cylinder (515), a first connecting block (516), and a first fisheye connector (517). The first mounting base (511) is fixed to one side of the lower clamping fixed base (41), the first pressure sensor (512) is mounted on the first mounting base (511), the first lower fabric clamping block (513) is disposed on one side of the lower clamping fixed base (41), and the detection end of the first pressure sensor (512) is connected to the first upper fabric clamping block (514). A lower fabric clamping block (513) is connected; a second cylinder (515) is installed inside the testing machine housing (2); the first upper fabric clamping block (514) is connected to the output shaft of the second cylinder (515), and the first upper fabric clamping block (514) is positioned above the first lower fabric clamping block (513); the first connecting block (516) is positioned on the top of the first upper fabric clamping block (514); the first fisheye connector (517) is coaxially connected to the output shaft of the second cylinder (515), and the first fisheye connector (517) is connected to the first upper fabric clamping block (514) through the first connecting block (516).

5. The tensile elasticity testing device based on blended fabric production according to claim 4, characterized in that: The synchronous drive mechanism (52) includes a mounting bracket (522), a pair of linear modules (521), and a grating ruler (523); the pair of linear modules (521) are mounted on the inner walls of both sides of the detection housing (2), the mounting bracket (522) is fixed between the output ends of the pair of linear modules (521), and the grating ruler (523) is mounted on the linear modules (521); the mobile end detection mechanism (53) is disposed on the mounting bracket (522).

6. The tensile elasticity testing device based on blended fabric production according to claim 5, characterized in that: The mobile terminal detection mechanism (53) includes multiple second mounting bases (531), a second pressure sensor (532), a second lower fabric clamping block (533), a second upper fabric clamping block (534), a third cylinder (535), a second connecting block (536), and a second fisheye connector (537); the multiple second mounting bases (531) are all fixed on the mounting frame (522), and each second mounting base (531) is aligned with an independent partition. The second pressure sensor (532) is mounted on the second mounting base (531), and the second lower fabric clamping block (533) is disposed on the mounting frame (522). The detection end of (532) is connected to the second lower fabric clamping block (533). The third cylinder (535) is installed in the detection housing (2). The third cylinder (535) is connected to the output shaft of the second upper fabric clamping block (534). The second upper fabric clamping block (534) is positioned above the second lower fabric clamping block (533). The second connecting block (536) is positioned on the top of the second upper fabric clamping block (534). The second fisheye connector (537) is coaxially connected to the output shaft of the third cylinder (535). The second fisheye connector (537) is connected to the second upper fabric clamping block (534) through the second connecting block (536).

7. The tensile elasticity testing device based on blended fabric production according to claim 6, characterized in that: A laser displacement sensor (538) is installed on the mounting bracket (522), and the detection end of the laser displacement sensor (538) is directly opposite the middle position of the fabric detection part between the synchronous drive mechanism (52) and the moving end detection mechanism (53).

8. The tensile elasticity testing device based on blended fabric production according to claim 6, characterized in that: The bottom of the first lower fabric clamping block (513) and the second lower fabric clamping block (533) are both provided with sliding grooves. Two sets of positioning pulleys (539) are fixed inside the detection housing (2). Each set of positioning pulleys (539) is respectively set in the bottom sliding groove of the first lower fabric clamping block (513) and the second lower fabric clamping block (533), and is used to support the first lower fabric clamping block (513) and the second lower fabric clamping block (533). The top clamping surfaces of the lower clamping fixing seat (41), the first lower fabric clamping block (513) and the second lower fabric clamping block (533) are all on the same plane.

9. The tensile elasticity testing device based on blended fabric production according to claim 1, characterized in that: The inspection housing (2) is equipped with a defect positioning mechanism (6); the defect positioning mechanism (6) includes multiple line array industrial cameras (61) and defect marking spray nozzles (62); each line array industrial camera (61) and defect marking spray nozzle (62) corresponds to an independent partition. The line array industrial camera (61) and defect marking spray nozzle (62) are installed in the inspection housing (2). The line array industrial camera (61) is positioned downstream of the fabric on the side facing the mobile end inspection mechanism (53), and the defect marking spray nozzle (62) is positioned downstream of the fabric on the side facing the line array industrial camera (61).

10. A method for testing tensile elasticity based on blended fabric production, characterized in that: The tensile elasticity testing device based on blended fabric production as described in any one of claims 1-9 is adopted; specifically, it includes the following steps: Step 1, Width Section Positioning: As the fabric is wound up by the winding mechanism (1), when the fabric enters the detection area inside the detection machine box (2), the upper clamping fixed seat (42) is driven down by the first cylinder (43), so that the lower clamping fixed seat (41) and the upper clamping fixed seat (42) cooperate to clamp the fabric. At the same time, the isolation pad (44) between the adjacent lower clamping fixed seat (41) and the first cylinder (43) realizes the section isolation positioning of the fabric in the width direction. Step 2, Zoned Detection: After the zoned isolation is completed, the fabric is clamped by the fixed end detection mechanism (51) and the mobile end detection mechanism (53), and then the mobile end detection mechanism (53) is driven by the synchronous drive mechanism (52) to move away from the fixed end detection mechanism (51) to realize the fabric elasticity detection.

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