Sports fabric elasticity detection device and detection method

Abstract

The invention discloses a sportswear fabric elasticity detection device and detection method, and relates to the technical field of fabric detection. The device comprises a main frame, a fixing frame, a plurality of first mounting frames, a plurality of adjusting cylinders, a group of side sliding frames, an amplitude frame, a plurality of second mounting frames, a buckling piece, a micro-motor and an amplitude output motor, the buckling piece is formed by combining a first buckling body and a second buckling body and is used for fixing a fabric sample, the micro-motor can drive the fabric sample to be pre-tensioned, and the amplitude output motor is used for outputting the amplitude of the fabric sample. The amplitude output motor can drive the amplitude frame to move periodically so as to stretch and shrink the fabric sample. According to the detection method, the fabric sample is fixed through the buckling piece and installed on the device, and periodic stretching and shrinking detection is carried out after pre-tensioning. The device can detect multiple groups of samples at the same time, and is high in detection efficiency, accurate in pre-tensioning control, high in automation degree and suitable for detecting the elasticity of the sportswear fabric, and the detection result fits the actual use scene, and the samples are convenient to disassemble and assemble.

Description

Technical Field

[0001] This invention relates to the field of fabric testing technology, and in particular to a device and method for testing the elasticity of sports fabrics. Background Technology

[0002] In the production and quality control of sports fabrics, elasticity directly affects wearing comfort, freedom of movement, and fabric durability, making it one of the core testing indicators. However, existing sports fabric elasticity testing technologies have many problems that urgently need to be addressed: Firstly, the testing efficiency is low, making it difficult to adapt to the needs of mass production. Traditional testing devices are mostly single-station designs, capable of testing only one fabric sample at a time. For large-scale production scenarios, the testing process is lengthy, severely slowing down the production schedule and failing to meet the needs of enterprises for efficient quality control.

[0003] Secondly, the detection accuracy is insufficient, and the results are not comparable. Existing devices rely heavily on manual adjustment or simple mechanical structures for sample pre-tensioning, lacking a precise tension feedback and control mechanism. This leads to differences in the initial tensile state of different samples, and even for the same batch of fabrics, the test results will show significant deviations, making it difficult to objectively reflect the true elastic performance of the fabric.

[0004] Third, the fabric samples are difficult to fix and the testing environment is not well-suited to the requirements. Traditional sample fixing methods often use clamps, which are cumbersome to install and remove and can easily damage the edges of the fabric. At the same time, the stretching methods are mostly static stretching in one direction, which fails to simulate the dynamic deformation state of the fabric during repeated stretching and contraction during movement. This results in the test results being out of touch with actual performance and cannot accurately assess the elasticity and durability of the fabric.

[0005] The aforementioned technical issues have limited the practicality and reliability of elasticity testing for sports fabrics, affecting the efficiency of production quality control. Overcoming these technical problems has become a challenge. Summary of the Invention

[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention provides a device for testing the elasticity of sports fabrics, including a main frame and a set of side slide frames. A fixing frame is positioned and installed on the main frame. Multiple first mounting frames are installed on one side of the fixing frame, and multiple adjusting cylinders, each independently aligned with a first mounting frame, are installed on the other side. An amplitude frame is slidably installed between the side slide frames, and multiple second mounting frames aligned with the first mounting frames are installed on the amplitude frame. A fastener is slidably installed in each of the first mounting frames, and a fastener is fixedly installed in each of the second mounting frames. A fabric sample is pre-installed between the fasteners of the aligned first and second mounting frames. The fasteners include a first fastener body and a second fastener body that are inserted and combined.

[0007] The interior of the adjusting cylinder is an adjusting cavity, within which a square column block is slidably mounted. One end of the square column block is connected to a connecting rod that can be movably inserted into the first mounting frame, and the other end of the square column block has a threaded hole. A micro motor is also fixedly mounted on the outside of the adjusting cylinder. The micro motor is equipped with a load torque sensing module, and its output end has an output screw screwed into the threaded hole. An amplitude output motor that drives the periodic movement of the amplitude frame is positioned and mounted on the outside of the amplitude frame.

[0008] As a preferred technical solution of the detection device of the present invention: the fixed frame is provided with multiple guide sleeves, and the connecting rod moves through the guide sleeves.

[0009] As a preferred embodiment of the detection device of the present invention: a first mounting frame is provided with a first square groove for mounting a fastener, the first square groove including a first upper notch with an upward opening, one end of a connecting rod being movably inserted into the first square groove, and a first T-shaped groove being formed on the side end of the connecting rod inserted into the first square groove. A second mounting frame is provided with a second square groove for mounting a fastener, the second groove including a second upper notch with an upward opening, a positioning protrusion being fixedly provided in the second square groove, and the positioning protrusion having a second T-shaped groove. The first T-shaped groove and the second T-shaped groove are of the same size, the first fastener is provided with a connector, the connector of the first fastener is inserted into the position of the first T-shaped groove, and the connector in the second mounting frame is inserted into the position of the second T-shaped groove.

[0010] As a preferred embodiment of the detection device of the present invention: the mating surfaces of the first and second snap fasteners are magnetically attracted surfaces. The first snap fastener includes a snap fastening portion and a first clamping notch adjacent to the snap fastening portion. The second snap fastener includes a snap-fit ​​groove that mates with the snap fastening portion and a second clamping notch that aligns with the first clamping notch. The snap fastening portion is inserted into the snap-fit ​​groove, and the side end of the fabric sample is clamped at the positions of the first and second clamping notches.

[0011] As a preferred technical solution of the detection device of the present invention: the micro motor is a servo motor, and the outer sliding sleeve that contacts the inner wall of the adjustment cavity is provided on the ring side of the square column block.

[0012] As a preferred technical solution of the detection device of the present invention: a slide rail is provided on the side of the side slide facing the amplitude frame, and sliding parts are installed on both sides of the amplitude frame, and the sliding parts are slidably assembled at the position of the slide rail.

[0013] As a preferred technical solution of the detection device of the present invention: the output end of the amplitude output motor is connected to the deflection output box, the output shaft of the amplitude output motor is fixedly mounted with an eccentric wheel, and the deflection output box is elastically mounted with an amplitude connecting rod that abuts against the eccentric wheel. The amplitude connecting rod is fixedly connected to the middle position of the amplitude frame. The rod body of the amplitude connecting rod located inside the deflection output box is fitted with a spring, and a distance probe with its detection direction facing the eccentric wheel is provided inside the deflection output box. The detection path of the distance probe is collinear with the axis of the amplitude connecting rod.

[0014] This invention provides a method for testing the elasticity of sports fabrics, comprising the following: Step 1: Place both ends of the fabric sample between the first and second buckle bodies respectively, close the two buckle bodies, and complete the fabric sample fixing.

[0015] Step 2: Assemble the fastener at one end of the fabric sample onto the side of the connecting rod in the first mounting frame, and fix the fastener at the other end of the fabric sample into the second mounting frame.

[0016] Step 3: Repeat the above steps to complete the initial installation of fabric samples at all testing stations.

[0017] Step 4: Turn on the micro motor, which drives the square block to move along the inside of the adjusting cylinder through the output screw. The square block drives the connecting rod to move, gradually tensioning the fabric sample.

[0018] Step 5: The load torque information of the micro motor is monitored in real time through the load torque sensing module. When the load torque of the micro motor reaches the preset torque, the micro motor stops.

[0019] Step 6: Turn on the amplitude output motor to drive the amplitude frame to make periodic movements.

[0020] Step 7: The amplitude frame drives the second mounting frame to move synchronously, causing the fabric sample to undergo periodic stretching and shrinking.

[0021] Step 8: After the fabric sample has reached the preset number of stretching and shrinking cycles, turn off the amplitude output motor, remove the fabric sample, loosen the fasteners, and complete the testing process.

[0022] Compared with existing technologies, the beneficial effects of this invention are: The device of this invention has multiple independent testing stations, which can simultaneously complete the elasticity test of multiple sets of fabric samples without the need for individual testing, greatly shortening the time required for batch testing and adapting to the rapid testing needs of industrial production.

[0023] In this invention, the pre-tensioning stage uses a servo motor in conjunction with a load torque sensing module to precisely control the initial tension of the sample, ensuring that the initial state of the samples at all testing stations is uniform, avoiding testing deviations caused by differences in initial tension, improving the comparability of results, and at the same time, periodic stretching simulates the actual deformation of the fabric in use, making the test results more consistent with real application scenarios.

[0024] In this invention, the fastener adopts a magnetic and snap-on combination structure, which makes the fabric sample assembly and disassembly quick and efficient without the need for a complicated fixing process. The device is highly automated, and the pre-tensioning and periodic stretching are all driven by a motor, reducing manual intervention and lowering the difficulty of operation. Attached Figure Description

[0025] Figure 1This is a top view cross-sectional structural diagram of the device of the present invention.

[0026] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0027] Figure 3 for Figure 2 A magnified structural diagram of part C in the middle.

[0028] Figure 4 This is a schematic diagram of the structure of the column block and connecting rod in this invention.

[0029] Figure 5 for Figure 1 A magnified structural diagram of section B in the middle.

[0030] Figure 6 This is a schematic diagram showing the disassembly structure of the second mounting frame and the fastener in this invention.

[0031] Figure 7 This is a schematic diagram of the structure of the first snap-fit ​​body in this invention.

[0032] Figure 8 This is a schematic diagram of the structure of the second snap-fit ​​body in this invention.

[0033] Figure 9 This is a schematic diagram of the structure of the first mounting frame in this invention.

[0034] Figure 10 This is a schematic diagram of the structure of the second mounting frame in this invention.

[0035] Figure 11 This is a schematic diagram of the amplitude output motor and related components in this invention.

[0036] Wherein: 1-Main frame; 2-Fixing frame; 201-Guide sleeve; 3-First mounting frame; 301-First square groove; 302-First upper notch; 4-Snap fastener; 401-First snap fastener body; 4011-Plug-in connector; 4012-Snap fastener part; 4013-First clamping notch; 402-Second snap fastener body; 4021-Snap-in groove; 4022-Second clamping notch; 5-Adjusting cylinder; 501-Adjusting cavity; 6-Square column block; 601-Threaded hole; 602-Outer sleeve; 7-Connecting rod. 701-First T-slot; 8-Micro motor; 801-Output screw; 9-Side slide; 901-Slide rail; 10-Amplitude frame; 11-Sliding component; 12-Second mounting frame; 1201-Second square slot; 1202-Positioning protrusion; 1203-Second T-slot; 1204-Second upper notch; 13-Amplitude output motor; 1301-Deflection output box; 1302-Eccentric wheel; 1303-Spring; 1304-Distance probe; 1305-Amplitude connecting rod; 14-Fabric sample. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0038] Example 1: This invention designs a device for detecting the elasticity of sports fabrics, with the following specific structural configuration: (a) Foundation support and installation components Combination Figure 1 , Figure 5 , Figure 6 , Figure 9 , Figure 10 The main frame 1 provides a stable mounting reference for components such as the fixed frame 2 and the side sliding frame 9, ensuring the structural stability of the entire device during the testing process. The fixed frame 2 is positioned and installed on the main frame 1, and is equipped with multiple guide sleeves 201 for guiding and limiting the movement of the connecting rod 7. Multiple first mounting frames 3 are installed on one side of the fixed frame 2, and multiple adjusting cylinders 5 are installed on the other side. The first mounting frames 3 and adjusting cylinders 5 are independently aligned to form multiple independent testing stations. The first mounting frames 3 are installed on one side of the fixed frame 2. The first mounting frames 3 are provided with a first square groove 301 for installing the fastener 4. The first square groove 301 includes a first upper notch 302 with an upward opening, which facilitates the quick insertion of the fastener 4.

[0039] Combination Figure 1 , Figure 5 The side slides 9 are arranged in pairs. A slide rail 901 is provided on the side of the side slide facing the amplitude frame 10. The slide rail 901 provides a guide track for the sliding of the amplitude frame 10, ensuring the smoothness of its movement. The amplitude frame 10 is slidably installed between a set of side slides 9. Sliding elements 11 are installed on both ends, and the sliding elements 11 are slidably fitted at the positions of the slide rails 901. The sliding elements 11 and the slide rails 901 of the side slides 9 slide in a sliding engagement, reducing the friction during the movement of the amplitude frame 10 and ensuring that the amplitude frame 10 slides smoothly back and forth along the slide rails 901. Multiple second mounting frames 12 are installed on the amplitude frame 10, aligned with the first mounting frame 3. The periodic reciprocating motion of the amplitude frame 10 drives the second mounting frames 12 to move synchronously, realizing the stretching and shrinking of the fabric sample 14.

[0040] Combination Figure 6 , Figure 10The second mounting frame 12 is provided with a second square groove 1201 for mounting the fastener 4. The second square groove 1201 includes a second upper notch 1204 with the opening facing upward. A positioning protrusion 1202 is fixedly provided in the second square groove 1201. The positioning protrusion 1202 is provided with a second T-shaped groove 1203, which is used to cooperate with the plug 4011 of the fastener 4.

[0041] (ii) Fabric fixing components Combination Figure 2 , Figure 6 , Figure 7 , Figure 8 The fastener 4 is used to clamp and fix the fabric sample 14. It includes a first fastener body 401 and a second fastener body 402 with a plug-in assembly. The mating surfaces of the two fasteners are magnetically attracted to each other to ensure a firm clamping. The first fastener body 401 is provided with a plug 4011, a fastening part 4012, and a first clamping notch 4013. The second fastener body 402 is provided with a snap-fit ​​groove 4021 and a second clamping notch 4022. The plug 4011 is used to engage with the first T-slot 701 or the second T-slot 1203. The snap-fit ​​part 4012 is used to engage with the snap-fit ​​groove 4021 of the second fastener body 402. The first clamping notch 4013 and the second clamping notch 4022 of the second fastener body 402 are aligned to form a complete clamping space for clamping the side of the fabric sample 14.

[0042] (iii) Pretensioning adjustment components Combination Figure 1 , Figure 3 , Figure 4 The adjusting cylinder 5 is installed on the other side of the fixed frame 2, and its interior is an adjusting cavity 501, providing space for the sliding of the square column block 6. A micro motor 8 is fixedly installed on the outside of the adjusting cylinder 5, providing power support for pre-tension adjustment. The square column block 6 is slidably installed inside the adjusting cavity 501, and an outer sliding sleeve 602 is provided around the square column block 6 to contact the inner wall of the adjusting cavity 501, reducing friction during sliding. One end of the square column block 6 is connected to the connecting rod 7, and the other end has a threaded hole 601 for screwing into the output screw 801 of the micro motor 8.

[0043] Combination Figure 1 , Figure 3 , Figure 4One end of the connecting rod 7 is connected to the square block 6, and the other end of the connecting rod 7 is movably inserted into the first square groove 301 of the first mounting frame 3. The connecting rod 7 movably passes through the guide sleeve 201 of the fixing frame 2. A first T-shaped groove 701 is opened on the side end of the connecting rod 7 inserted into the first square groove 301 for insertion and engagement with the plug 4011 of the first buckle body 401, thereby tensioning the fabric sample 14. The micro motor 8 is a servo motor with higher control precision and is equipped with a load torque sensing module for real-time monitoring of changes in the motor's load torque. The output end of the micro motor 8 is provided with an output screw 801, which is screwed into the threaded hole 601 of the square block 6, and drives the square block 6 to move axially by rotation.

[0044] (iv) Periodic stretching drive components Combination Figure 1 , Figure 11 An amplitude output motor 13 provides power for the periodic movement of the amplitude frame 10. The output end of the amplitude output motor 13 is connected to the deflection output box 1301, and an eccentric wheel 1302 is fixedly mounted on the output shaft of the amplitude output motor 13. An amplitude connecting rod 1305 is elastically installed inside the deflection output box 1301. The amplitude connecting rod 1305 abuts against the eccentric wheel 1302. A spring 1303 is sleeved on the rod body of the amplitude connecting rod 1305 inside the deflection output box 1301. When the eccentric wheel 1302 rotates, it periodically pushes the amplitude connecting rod 1305 to perform reciprocating linear motion. A distance probe 1304 is installed inside the deflection output box 1301. The detection direction is towards the eccentric wheel 1302, and the detection path is collinear with the axis of the amplitude connecting rod 1305. It is used to monitor the distance to the eccentric wheel 1302 in real time and indirectly provide feedback on the movement stroke and frequency of the amplitude connecting rod 1305.

[0045] Combination Figure 1 , Figure 11 A roller structure is embedded at one end of the amplitude connecting rod 1305 that abuts against the eccentric wheel 1302, and the roller structure contacts the eccentric wheel 1302. The other end of the amplitude connecting rod 1305 is fixedly connected to the middle position of the amplitude frame 10, converting the rotation of the eccentric wheel 1302 into the reciprocating linear motion of the amplitude frame 10. A spring 1303 is sleeved on the rod of the amplitude connecting rod 1305 located inside the deflection output box 1301, providing elastic support for the reset of the amplitude connecting rod 1305.

[0046] Example 2: The method for testing the elasticity of sports fabrics designed in this invention is as follows: (a) Sample pretreatment According to the testing requirements, the sports fabric to be tested is cut into fabric samples 14 of uniform specifications (preset length and width) to ensure that the fabric samples 14 are free from damage and wrinkles and have smooth edges, so as to avoid the test results being affected by the irregular shape of the samples.

[0047] (ii) Assembly of fasteners and fabric samples Take out the matching first buckle body 401 and second buckle body 402, and first align the two buckle bodies so that the buckling part 4012 of the first buckle body 401 corresponds to the snap-fit ​​groove 4021 of the second buckle body 402.

[0048] Place one side of the fabric sample 14 flat into the first clamping notch 4013 and the second clamping notch 4022 to form a complete clamping space. Forcefully close the first buckle body 401 and the second buckle body 402 so that the buckle part 4012 is fully inserted into the snap-fit ​​groove 4021. Through the adsorption force of the magnetic surface and the cooperation of the buckle structure, the side of the fabric sample 14 is firmly clamped, preventing the sample from slipping during the testing process.

[0049] Following the same steps, assemble another set of fasteners 4 on the other side of the fabric sample 14, ensuring that the two sets of fasteners 4 are installed symmetrically on the fabric sample 14 and that the clamping force is uniform.

[0050] (iii) Fabric samples are installed into the testing device For each testing station, align the connector 4011 on the buckle 4 at one end of the fabric sample 14 with the first T-groove 701 of the connecting rod 7, and insert it downward from the first upper notch 302 of the first mounting frame 3 so that the connector 4011 is fully engaged in the first T-groove 701, thus completing the fixation of one end of the fabric sample 14.

[0051] Simultaneously align the connector 4011 on the buckle 4 at the other end of the fabric sample 14 with the second T-groove 1203 of the second mounting frame 12 (the second T-groove 1203 is located on the positioning protrusion 1202 in the second square groove 1201), and insert it downward from the second upper notch 1204 of the second mounting frame 12, so that the connector 4011 is securely locked in the second T-groove 1203, thereby fixing the other end of the fabric sample 14.

[0052] Repeat the above operation to complete the initial installation of fabric samples 14 at all testing stations, ensuring that the installation direction of each fabric sample 14 is consistent and that it is in a natural relaxed state without initial stretching or wrinkles.

[0053] (iv) Sample pre-tensioning adjustment The system issues a command to start all micro motors 8. The micro motors 8 drive the output screw 801 to rotate. Since the output screw 801 is screwed to the threaded hole 601 of the square column block 6, and the square column block 6 slides with the inner wall of the adjustment cavity 501 of the adjustment cylinder 5 through the outer sliding sleeve 602, the rotation of the screw will drive the square column block 6 to move axially along the adjustment cavity 501.

[0054] The square block 6 drives the connecting rod 7 to move synchronously. The connecting rod 7 maintains stable movement under the action of the guide sleeve 201 of the fixed frame 2, and then gradually tensions one end of the fabric sample 14 by pulling the buckle 4.

[0055] The load torque sensing module of the micro motor 8 monitors the change of the motor's load torque in real time. When the load torque reaches the preset reference torque, the system controls the micro motor 8 to stop running. At this time, the fabric sample 14 reaches the preset initial tension state, ensuring that the initial tension of the samples at all testing stations is consistent.

[0056] (v) Periodic tensile testing When the amplitude output motor 13 is started, the motor output shaft drives the eccentric wheel 1302 inside the deflection output box 1301 to rotate. Since the eccentric wheel 1302 abuts against the amplitude connecting rod 1305, and the amplitude connecting rod 1305 is elastically installed in the deflection output box 1301 by the spring 1303, the rotation of the eccentric wheel 1302 will periodically push the amplitude connecting rod 1305 to perform reciprocating linear motion.

[0057] The amplitude connecting rod 1305 is fixedly connected to the middle position of the amplitude frame 10, thereby driving the amplitude frame 10 to slide periodically back and forth along the slide rail 901 of the side slide frame 9 (the sliding parts 11 on both sides of the amplitude frame 10 cooperate with the slide rail 901 to ensure smooth movement).

[0058] The reciprocating motion of the amplitude frame 10 drives all the second mounting frames 12 to move synchronously, and the fabric sample 14 is pulled by the fastener 4 to perform periodic stretching and contraction, simulating the deformation state of the sports fabric in actual use.

[0059] During the testing process, the distance probe 1304 inside the deflection output box 1301 (whose detection path is collinear with the axis of the amplitude link 1305) monitors the distance to the eccentric wheel 1302 in real time, indirectly providing feedback on the motion stroke and frequency of the amplitude link 1305, ensuring that the periodicity of the stretching and contraction meets the testing requirements.

[0060] (vi) Termination of detection and device reset When the number of cyclic stretching and shrinking cycles of fabric sample 14 reaches the preset value, the system controls the amplitude output motor 13 to decelerate until it stops operating.

[0061] The standard for stopping the amplitude output motor 13 is as follows: the distance probe 1304 detects that the distance to the eccentric wheel 1302 has reached the minimum value. At this time, the eccentric wheel 1302 returns to the initial position, and the amplitude connecting rod 1305 drives the amplitude frame 10 back to the initial state under the reset action of the spring 1303. The deflection output box 1301 completes the reset.

[0062] Turn off all drive components, loosen the engagement between the buckle 4 and the T-slots (first T-slot 701, second T-slot 1203), remove the fabric sample 14, and complete the entire testing process.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for detecting the elasticity of sports fabrics, characterized in that: Includes a main frame (1) and a set of side slides (9). A fixed frame (2) is positioned and installed on the main frame (1). Multiple first mounting frames (3) are installed on one side of the fixed frame (2) and multiple adjusting cylinders (5) are installed on the other side, each of which is independently aligned with the first mounting frame (3). An amplitude frame (10) is slidably installed between the set of side slides (9). Multiple second mounting frames (12) aligned with the first mounting frame (3) are installed on the amplitude frame (10). A fastener (4) is slidably installed in the first mounting frame (3), and a fastener (4) is fixedly installed in the second mounting frame (12). A fabric sample (14) is pre-installed between the fasteners (4) of the first mounting frame (3) and the second mounting frame (12) with their positions aligned. The fastener (4) includes a first fastener body (401) and a second fastener body (402) that are connected by a plug-in assembly. The inside of the regulating cylinder (5) is an regulating cavity (501), and a square column block (6) is slidably installed in the regulating cavity (501). One end of the square column block (6) is connected to a connecting rod (7) that is movably inserted into the first mounting frame (3), and the other end of the square column block (6) is provided with a threaded hole (601). The outside of the regulating cylinder (5) is also fixedly installed with a micro motor (8). The micro motor (8) is equipped with a load torque sensing module. The output end of the micro motor (8) is provided with an output screw (801) screwed into the threaded hole (601). An amplitude output motor (13) that drives the amplitude frame (10) to move periodically is positioned and installed on the outside of the amplitude frame (10).

2. The sports fabric elasticity testing device according to claim 1, characterized in that: The fixed frame (2) is provided with multiple guide sleeves (201), and the connecting rod (7) moves through the guide sleeves (201).

3. The sports fabric elasticity testing device according to claim 1, characterized in that: The first mounting frame (3) is provided with a first square groove (301) for mounting the buckle (4). The first square groove (301) includes a first upper notch (302) with the opening facing upward. One end of the connecting rod (7) is movably inserted into the first square groove (301). A first T-shaped groove (701) is opened on the side end of the connecting rod (7) inserted into the first square groove (301). The second mounting frame (12) is provided with a second square groove (1201) for mounting the buckle (4). The second square groove (1201) includes a second upper side notch (1204) with the opening facing upward. A positioning protrusion (1202) is fixedly provided in the second square groove (1201). The positioning protrusion (1202) is provided with a second T-shaped groove (1203). The first T-slot (701) and the second T-slot (1203) are the same size. The first buckle body (401) is provided with a connector (4011). The connector (4011) of the first buckle body (401) is inserted into the first T-slot (701). The connector (4011) in the second mounting frame (12) is inserted into the second T-slot (1203).

4. The sports fabric elasticity testing device according to claim 1, characterized in that: The mating surfaces of the first snap fastener (401) and the second snap fastener (402) are magnetically attracted surfaces that attract each other. The first latching body (401) includes a latching part (4012) and a first clamping notch (4013) adjacent to the latching part (4012). The second latching body (402) includes a latching groove (4021) that mates with the latching part (4012) and a second clamping notch (4022) that aligns with and mates with the first clamping notch (4013). The buckle (4012) is inserted into the snap-fit ​​groove (4021), and the side end of the fabric sample (14) is clamped at the first clamping notch (4013) and the second clamping notch (4022).

5. The sports fabric elasticity testing device according to claim 1, characterized in that: The micro motor (8) is a servo motor, and the square column block (6) is provided with an outer sliding sleeve (602) that contacts the inner wall of the adjustment cavity (501) on the ring side.

6. The sports fabric elasticity testing device according to claim 1, characterized in that: The side slide (9) is provided with a slide rail (901) on the side facing the amplitude frame (10), and sliding parts (11) are installed on both sides of the amplitude frame (10). The sliding parts (11) are slidably assembled at the position of the slide rail (901).

7. The sports fabric elasticity testing device according to claim 1, characterized in that: The output end of the amplitude output motor (13) is connected to the deflection output box (1301). The output shaft of the amplitude output motor (13) is fixedly mounted with an eccentric wheel (1302). The deflection output box (1301) is elastically mounted with an amplitude connecting rod (1305) that abuts against the eccentric wheel (1302). The amplitude connecting rod (1305) is fixedly connected to the middle position of the amplitude frame (10). The amplitude link (1305) is fitted with a spring (1303) inside the deflection output box (1301). The deflection output box (1301) is equipped with a distance probe (1304) with the detection direction facing the eccentric wheel (1302). The detection path of the distance probe (1304) is collinear with the axis of the amplitude link (1305).

8. A method for testing the elasticity of sports fabrics, characterized in that, A sports fabric elasticity testing device according to any one of claims 1 to 7, comprising the following: Step 1: Place both ends of the fabric sample (14) between the first buckle body (401) and the second buckle body (402) respectively, close the two buckle bodies, and complete the fixing of the fabric sample (14); Step 2: Assemble the buckle (4) at one end of the fabric sample (14) onto the side of the connecting rod (7) in the first mounting frame (3), and fix the buckle (4) at the other end of the fabric sample (14) into the second mounting frame (12). Step 3: Repeat the above steps to complete the initial installation of fabric samples (14) at all testing stations; Step 4: Turn on the micro motor (8), and drive the square block (6) to move along the inside of the adjusting cylinder (5) through the output screw (801). The square block (6) drives the connecting rod (7) to move, and gradually tensions the fabric sample (14). Step 5: The load torque information of the micro motor (8) is monitored in real time through the load torque sensing module. When the load torque of the micro motor (8) reaches the preset torque, the micro motor (8) stops. Step 6: Turn on the amplitude output motor (13) to drive the amplitude frame (10) to make periodic movements; Step 7: The amplitude frame (10) drives the second mounting frame (12) to move synchronously, causing the fabric sample (14) to undergo periodic stretching and shrinking; Step 8: After the fabric sample (14) reaches the preset number of stretching and shrinking cycles, turn off the amplitude output motor (13), remove the fabric sample (14), loosen the fastener (4), and complete the testing process.

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