A device for detecting tensile properties of superfine fiber fabric

Abstract

The application discloses a superfine fiber fabric tensile property detection device and relates to the technical field of fabric detection equipment. The superfine fiber fabric tensile property detection device comprises a working platform, a tensile detection assembly is arranged on the top of the working platform, the tensile detection assembly comprises a guide rail plate arranged on the top of the working platform and a supporting shell mounted on the top of the guide rail plate. The superfine fiber fabric tensile property detection device is provided with a tensile detection assembly, a counterweight assembly and a falling detection assembly, the upper end of the fabric is fixed by a reel, a counterweight block provides constant gravity load, the static tensile detection of the fiber fabric is realized by adjusting the sliding of the shell along the guide rail plate, the conveying belt is driven by a driving motor to make the push plate push the adjusting shell to rise to a set height and then be released, the sudden impact load suffered by the fabric in actual use is simulated, the weight sensor records the tensile peak value in real time, the limitation that the traditional motor-driven screw linear tensile property detection cannot reflect the impact on the fabric is overcome, and the authenticity and accuracy of the superfine fiber fabric tensile property detection data are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of fabric testing equipment, and in particular relates to a device for testing the tensile properties of microfiber fabrics. Background Technology

[0002] Microfiber refers to high-fineness fibers with a fineness of less than 0.3 denier (dtex), commonly made of polyester and nylon composites. Its monofilaments are extremely fine, even finer than silk, resulting in a large surface area and giving the fabric excellent capillary action. For microfiber fabrics, tensile testing is particularly crucial to ensure sufficient strength for daily wiping or wearing needs, while moderate elongation ensures shape stability and prevents deformation due to stretching.

[0003] A Chinese patent application (or patent) with publication number CN219694759U discloses a fabric stretch testing machine. By placing the two ends of the fabric inside the slots and stretching grooves of two fabric positioning plates, and setting rubber protrusions inside the slots, the user only needs to rotate the threaded rod. When the threaded rod is rotated, the clamping plate will move horizontally and squeeze the fabric towards the rubber protrusions to position it. The rubber protrusions can increase the friction between the fabric and the fabric positioning plate, making it more stable when clamped. Furthermore, the fabric cross-passing through the stretching grooves and slots can increase its friction and prevent it from slipping during the stretching process.

[0004] However, the above-mentioned device still has the following problems during implementation: During the fabric inspection process, the two ends of the fabric are fixed by two sets of fabric positioning plates, and the two sets of positioning plates are pushed to move in opposite directions by screws to stretch the fabric. However, the process of the screws pushing the positioning plates to move is linear, and the stretching of the fabric gradually increases. It is difficult to simulate the impact on the elasticity of the fabric when it is subjected to impact in real-world conditions, and the inspection has limitations.

[0005] A Chinese patent application (or patent) with publication number CN223229357U discloses a fabric tensile performance testing device. By clamping one end of the fabric sample between an anti-slip roller and an arc-shaped clamping plate, and then starting a first motor, the anti-slip roller is rotated so that the fabric sample wraps around the anti-slip roller at least once. At this time, when the fabric sample is subjected to tensile testing, the arc-shaped clamping plate will be compressed, thereby more firmly clamping one end of the fabric sample between the anti-slip roller and the arc-shaped clamping plate. The greater the tensile force, the better the clamping effect on the fabric sample, thus effectively preventing the fabric sample from falling off during the test.

[0006] However, the above-mentioned device still has the following problems during implementation: During fabric testing, the screw driven by the motor pulls the clamp to stretch the fabric. The motor torque is often a set value, but the actual axial tension acting on the fabric is affected by multiple factors such as screw transmission efficiency, lead error, and clamp friction. This makes the experimental data unable to truly reflect the deformation characteristics and breaking strength of the fabric under constant load, thus affecting the accuracy of the test results.

[0007] To address this issue, we provide a device for testing the tensile properties of microfiber fabrics. Summary of the Invention

[0008] The purpose of this invention is to provide a device for testing the tensile properties of microfiber fabrics. Through the structural cooperation of the tensile testing component, the counterweight component, and the drop testing component, this invention solves the problem in the prior art where fabric testing equipment uses a motor-driven screw to pull the fabric with a clamp. The motor torque is often a set value, and the pulling process of the fabric is linear, which cannot truly reflect the impact on the fabric during actual use.

[0009] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.

[0010] This invention relates to a device for testing the tensile properties of microfiber fabrics, comprising a working platform, a tensile testing component mounted on the top of the working platform, the tensile testing component including a guide rail plate mounted on the top of the working platform, a support shell mounted on the top of the guide rail plate, a weight sensor mounted inside the support shell, a support base mounted on the top of the weight sensor, a groove formed on the top of the support base, and a roller disposed inside the groove, the tensile testing component detecting the tensile force on the microfiber fabric; a counterweight component is mounted on one side of the guide rail plate, the counterweight component including an adjusting shell mounted on one side of the guide rail plate, and a screw threaded through the top of the adjusting shell. The system includes a rod seat, a counterweight block fitted onto the surface of the screw seat, an electric push rod mounted on one side of the adjusting housing, and a clamping plate mounted on the output end of the electric push rod. Different counterweights are adjusted during the tensile testing of the fiber fabric using the counterweight assembly. A drop detection assembly is provided on one side of the guide rail plate. This assembly includes a drive housing on one side of the guide rail plate, a drive motor mounted on one side of the drive housing, a drive roller mounted on the output end of the drive motor, a conveyor belt fitted onto the surface of the drive roller, a push plate mounted on one side of the conveyor belt, and a first connecting plate and a second connecting plate mounted on one side of the adjusting housing. The drop detection assembly performs drop impact testing on the fiber fabric.

[0011] The present invention is further configured such that the fall detection assembly also includes a movable frame installed on one side of the drive housing, and a multi-stage hydraulic rod installed at the bottom of the movable frame.

[0012] The present invention is further configured such that the working platform includes a detection seat installed at the bottom of the guide rail plate, a detection platform installed at the top of the detection seat, and the bottom of the multi-stage hydraulic rod is fixedly connected to the detection platform.

[0013] The invention is further configured such that the surface of the roll is used to wrap and fix the fiber fabric to be tested, and the roll is adapted to the groove.

[0014] The present invention is further configured such that sliders are fixedly connected to both sides of the adjusting shell, and the sliders are slidably connected to the inner wall of the guide rail plate.

[0015] The present invention is further configured such that a sliding plate is slidably connected to the surface of the guide rail plate, and one side of the sliding plate is fixedly connected to the drive housing.

[0016] The present invention is further configured such that a nut is threaded onto the surface of the screw seat for fixing the screw seat to the top of the adjusting shell.

[0017] The invention is further configured such that a reinforcing pad is fixedly connected to one side of the clamping plate, and a reinforcing groove is provided inside the adjusting shell.

[0018] The present invention is further configured such that a buffer damper is fixedly connected to the top of the detection seat, and a buffer plate is fixedly connected to the top of the buffer damper.

[0019] The present invention is further configured such that a driven roller is provided inside the conveyor belt, and the surface of the driven roller is movably connected to the inner wall of the drive housing through a bearing.

[0020] The present invention has the following beneficial effects: By setting up a tensile testing component, a counterweight component, and a drop testing component, the present invention uses a roller to fix the upper end of the fabric, a counterweight to provide a constant gravity load, and an adjusting shell to slide along a guide plate to realize static tensile testing of the fiber fabric. At the same time, the drive motor drives the conveyor belt to push the push plate to push the adjusting shell to a set height and then release it, simulating the sudden impact load that the fabric is subjected to in actual use. The weight sensor records the peak tensile force in real time, overcoming the limitation of traditional motor-driven screw linear tensioning that cannot reflect the impact effect on the fabric, and improving the authenticity and accuracy of the tensile performance test data of microfiber fabric.

[0021] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a three-dimensional view of a device for testing the tensile properties of microfiber fabrics.

[0024] Figure 2 This is a rear view of a device for testing the tensile properties of microfiber fabrics.

[0025] Figure 3 This is a schematic diagram of the tensile testing component in a device for testing the tensile properties of microfiber fabrics.

[0026] Figure 4 This is a cross-sectional view of the support shell in a device for testing the tensile properties of microfiber fabrics.

[0027] Figure 5 This is a schematic diagram showing the connection between the guide rail plate and the adjustment shell in a device for testing the tensile properties of microfiber fabrics.

[0028] Figure 6 This is a schematic diagram of the internal structure of the adjusting shell in a device for testing the tensile properties of microfiber fabrics.

[0029] Figure 7 This is a schematic diagram of the drop detection component in a device for testing the tensile properties of microfiber fabrics.

[0030] Figure 8 This is a schematic diagram of the internal structure of the drive housing in a device for testing the tensile properties of microfiber fabrics.

[0031] Figure 9 This is a schematic diagram of the movement of the adjusting shell by the push plate in a device for testing the tensile properties of microfiber fabrics.

[0032] Figure 10 This is a schematic diagram of the stretching of chemical fiber fabric in a microfiber fabric tensile performance testing device.

[0033] In the attached diagram: 1. Working platform; 2. Tensile testing assembly; 201. Guide rail plate; 202. Support shell; 203. Weight sensor; 204. Support base; 205. Groove; 206. Roller; 3. Counterweight assembly; 301. Adjustment shell; 302. Screw seat; 303. Counterweight block; 304. Electric push rod; 305. Clamping plate; 4. Fall detection assembly; 401. Drive shell; 402. Drive motor; 403. Drive roller; 404. Conveyor belt; 405. Push plate; 406. First connecting plate; 407. Second connecting plate; 408. Moving frame; 409. Multi-stage hydraulic rod; 5. Testing seat; 6. Testing table; 7. Slider; 8. Slide plate; 9. Nut; 10. Reinforcing pad; 11. Reinforcing groove; 12. Buffer damper; 13. Buffer plate; 14. Driven roller. Detailed Implementation

[0034] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Example 1: Please refer to Figures 1-10 This invention relates to a device for testing the tensile properties of microfiber fabrics, comprising a working platform 1, a tensile testing component 2 mounted on the top of the working platform 1, the tensile testing component 2 including a guide rail plate 201 mounted on the top of the working platform 1, a support shell 202 mounted on the top of the guide rail plate 201, a weight sensor 203 mounted inside the support shell 202, a support base 204 mounted on the top of the weight sensor 203, a groove 205 formed on the top of the support base 204, and a roller 206 mounted inside the groove 205. The tensile testing component 2 detects the tensile force on the microfiber fabric. A counterweight component 3 is mounted on one side of the guide rail plate 201, the counterweight component 3 including an adjusting shell 301 mounted on one side of the guide rail plate 201, a screw seat 302 penetrating the top of the adjusting shell 301, and a sleeve on the... The counterweight 303 on the surface of the screw seat 302, the electric push rod 304 installed on one side of the adjusting shell 301, and the clamping plate 305 installed on the output end of the electric push rod 304, allow for adjustment of different counterweights during the tensile testing of the fiber fabric through the counterweight assembly 3. A drop detection assembly 4 is provided on one side of the guide rail plate 201. The drop detection assembly 4 includes a drive shell 401 on one side of the guide rail plate 201, a drive motor 402 installed on one side of the drive shell 401, a drive roller 403 installed on the output end of the drive motor 402, a conveyor belt 404 sleeved on the surface of the drive roller 403, a push plate 405 installed on one side of the conveyor belt 404, and a first connecting plate 406 and a second connecting plate 407 installed on one side of the adjusting shell 301. The drop detection assembly 4 is used to perform drop impact testing on the fiber fabric.

[0036] Specifically: the guide plate 201 is used to guide and limit the vertical movement of sliding components such as the adjusting shell 301 and the sliding plate 8; the weight sensor 203 is used to detect and record the tensile force borne by the fiber fabric during static stretching and dynamic drop; the weight sensor 203 can be selected as a piezoelectric or strain gauge sensor, with a natural frequency of over 10kHz. Combined with a high-speed data acquisition card (sampling rate ≥1kHz), it can capture the impact peak of the fiber fabric, improving detection accuracy; the support base 204 transmits the impact force from the roller 206 to the weight sensor 203; the groove 205 radially limits the roller 206 to prevent it from rolling or sliding laterally during the stress process. To ensure the tension is always vertically downward, the roller 206 is used to wind and fix the upper end of the fiber fabric. The counterweight assembly 3 simulates different constant gravity loads on the fabric during actual use by stacking different numbers of counterweight blocks 303 on top of the adjusting shell 301, enabling rapid switching of load levels. The screw seat 302 provides guide rods for the counterweight blocks 303 to maintain the horizontal stability of each counterweight block 303 during movement. The counterweight blocks 303 apply a constant downward pull to the lower end of the fabric using their own weight. By changing the number and combination of counterweight blocks 303, the magnitude of the tensile load can be precisely adjusted. The electric push rod 304 provides linear driving force, driving the clamping plate 305 to quickly press or release the fabric, achieving automation. The drive housing 401 provides a rigid mounting frame for the drive motor 402, drive roller 403, and conveyor belt 404, and is connected to the guide rail plate 201 via the slide plate 8, allowing for height adjustment. The drive motor 402 rotates forward and backward under controller commands, providing power for the clockwise or counterclockwise movement of the conveyor belt 404, and can precisely control the moving speed and stopping position of the push plate 405. The conveyor belt 404 carries the push plate 405 and moves it along a fixed path, ensuring that the push plate 405 contacts the first connecting plate 406 and the second connecting plate 407 sequentially. As the push plate 405 moves with the conveyor belt 404 to different positions, it contacts either the second connecting plate 407 or the first connecting plate 406, thereby... The adjusting shell 301 is pushed up or down to complete the pre-lifting or active stretching action. The first connecting plate 406 is fixed on one side of the adjusting shell 301. When the conveyor belt 404 rotates counterclockwise, it receives the pushing force of the push plate 405 and pushes the adjusting shell 301 downward to perform active constant speed stretching of the fabric. The second connecting plate 407 is also fixed on the other side of the adjusting shell 301. When the conveyor belt 404 rotates clockwise, it receives the pushing force of the push plate 405 and pushes the adjusting shell 301 upward to lift the lower end of the fabric to the predetermined drop height. The drop detection component 4 realizes the simulation of the entire process of the fabric from static release to free fall. The peak tension at the moment of impact is recorded by the weight sensor 203 to evaluate the impact resistance performance of the fabric.

[0037] Example 2: Please refer to Figures 1-10Based on embodiment 1, the fall detection assembly 4 further includes a movable frame 408 installed on one side of the drive housing 401, a multi-stage hydraulic rod 409 installed at the bottom of the movable frame 408, a detection seat 5 installed at the bottom of the guide rail plate 201, and a detection platform 6 installed at the top of the detection seat 5. The bottom of the multi-stage hydraulic rod 409 is fixedly connected to the detection platform 6. The surface of the roller 206 is used to wind and fix the fiber fabric to be detected. The roller 206 is adapted to the groove 205. Slider 7 is fixedly connected to both sides of the adjusting housing 301. The slider 7 is slidably connected to the inner wall of the guide rail plate 201.

[0038] Specifically: The movable frame 408 serves as the connector between the drive housing 401 and the multi-stage hydraulic rod 409, transmitting the lifting motion of the hydraulic rod to the entire drop detection assembly 4, changing the initial pushing height of the push plate 405. The multi-stage hydraulic rod 409 provides a large height adjustment range through a multi-stage telescopic structure, enabling the drop detection assembly 4 to adapt to the detection requirements of fabrics of different lengths, while changing the drop distance to simulate impacts of different intensities. The slider 7 is symmetrically fixed on both sides of the adjusting housing 301 and embedded in the grooves on the inner wall of the guide rail plate 201, achieving low-friction, high-precision linear guidance and preventing the adjusting housing 301 from swaying during movement.

[0039] Example 3: Please refer to Figures 1-10 Based on Embodiments 1 and 2, a sliding plate 8 is slidably connected to the surface of the guide rail plate 201. One side of the sliding plate 8 is fixedly connected to the drive housing 401. A nut 9 is threadedly connected to the surface of the screw seat 302 to fix the screw seat 302 to the top of the adjusting housing 301. A reinforcing pad 10 is fixedly connected to one side of the clamping plate 305. A reinforcing groove 11 is opened inside the adjusting housing 301. A buffer damper 12 is fixedly connected to the top of the detection seat 5. A buffer plate 13 is fixedly connected to the top of the buffer damper 12. A driven roller 14 is provided inside the conveyor belt 404. The surface of the driven roller 14 is movably connected to the inner wall of the drive housing 401 through a bearing.

[0040] Specifically: the slide plate 8 is fixedly connected to the drive housing 401 and slides along the outer surface of the guide rail 201, allowing the fall detection component 4 to be adjusted in height independently of the adjustment housing 301 without interference. The reinforcing pad 10 is made of a high-friction coefficient material and is bonded to the surface of the clamping plate 305, increasing the clamping friction while protecting the fabric surface from being pinched. The reinforcing groove 11 is opened on the inner wall of the adjustment housing 301 at a position opposite to the reinforcing pad 10, forming a multi-directional embedding and clamping effect with the reinforcing pad 10, further improving the fabric's anti-slip ability. The buffer damper 12 is adjusted... When the housing 301 falls to the bottom, it absorbs the remaining kinetic energy and converts the impact energy into internal energy to dissipate, protecting the structure of the device from repeated impact damage. The buffer plate 13 is installed on top of the buffer damper 12 to increase the contact area with the bottom of the regulating housing 301, so that the impact force is evenly distributed and local stress concentration is avoided, which may cause deformation of the regulating housing 301. The driven roller 14 rotates freely inside the conveyor belt 404, and together with the drive roller 403, it tensions the conveyor belt 404 and provides additional support points to ensure the stability and synchronization accuracy of the conveyor belt 404 during long-distance movement.

[0041] The working principle of this invention is as follows: the operator winds and fixes the fiber fabric to be tested onto the surface of the roller 206, and then moves the roller 206 into the groove 205 at the top of the two sets of support seats 204, as shown. Figure 1 As shown, the fiber fabric is then laid down and aligned with the adjustment shell 301.

[0042] Then, the drive motor 402 is started by the external controller. The drive motor 402, together with the drive roller 403, drives the conveyor belt 404 to rotate. The conveyor belt 404 drives the push plate 405 to rotate clockwise. When the push plate 405 contacts the second connecting plate 407, it pushes the adjusting shell 301 to move upward. When the adjusting shell 301 moves upward, the fiber fabric will be inserted into the adjusting shell 301. Then, the electric push rod 304 is started. The electric push rod 304 drives the clamping plate 305 to move and clamp and fix the bottom end of the fabric.

[0043] Then, continue controlling the drive motor 402, which drives the conveyor belt 404 and push plate 405 to rotate clockwise. The push plate 405 pushes the adjusting shell 301 and the fiber fabric upwards, as... Figure 9As shown, while the adjusting shell 301 moves upward, it drives the screw seat 302 and the counterweight 303 to move upward. When the push plate 405 rotates to the top of the drive shell 401, it will disengage from the push of the second connecting plate 407. At this time, the adjusting shell 301 loses its thrust and, under the action of the counterweight 303, it causes the adjusting shell 301 to fall downward. While the adjusting shell 301 moves downward, it stretches the fiber fabric. When the fiber fabric moves downward, it drives the roller 206 to move. The roller 206 transmits the impact force to the support seat 204. The impact force value is detected by the weight sensor 203 to determine the tension of the fiber fabric. By performing a drop impact test on the fiber fabric, the impact effect of the fabric during actual use is simulated, thereby improving the accuracy of the fiber fabric test data.

[0044] After the fiber fabric drop detection is completed, the control drive motor 402 drives the conveyor belt 404 to rotate counterclockwise. The conveyor belt 404 drives the push plate 405 to rotate. When the push plate 405 contacts the first connecting plate 406, it can push the adjusting shell 301 to move downward. When the adjusting shell 301 moves downward, it works with the clamping plate 305 to stretch the fiber fabric. Figure 10 As shown, the direct tensile force on the fiber fabric is fed back through the weight sensor 203, further improving the accuracy of the fiber fabric detection data.

[0045] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A device for testing the tensile properties of microfiber fabrics, comprising a working platform (1), characterized in that: The work platform (1) is provided with a tensile testing component (2) on top. The tensile testing component (2) includes a guide rail plate (201) on top of the work platform (1), a support shell (202) on top of the guide rail plate (201), a weight sensor (203) inside the support shell (202), a support seat (204) on top of the weight sensor (203), a groove (205) on top of the support seat (204), and a roller (206) inside the groove (205). The tensile force on the fiber fabric is detected by the tensile testing component (2). A counterweight assembly (3) is provided on one side of the guide rail plate (201). The counterweight assembly (3) includes an adjustment shell (301) provided on one side of the guide rail plate (201), a screw seat (302) that passes through the top of the adjustment shell (301), a counterweight block (303) sleeved on the surface of the screw seat (302), an electric push rod (304) installed on one side of the adjustment shell (301), and a clamping plate (305) installed on the output end of the electric push rod (304). Different counterweights can be adjusted by the counterweight assembly (3) during the tensile testing of the fiber fabric. A drop detection assembly (4) is provided on one side of the guide rail plate (201). The drop detection assembly (4) includes a drive housing (401) provided on one side of the guide rail plate (201), a drive motor (402) installed on one side of the drive housing (401), a drive roller (403) installed at the output end of the drive motor (402), a conveyor belt (404) sleeved on the surface of the drive roller (403), a push plate (405) installed on one side of the conveyor belt (404), and a first connecting plate (406) and a second connecting plate (407) installed on one side of the adjusting housing (301). The drop detection assembly (4) is used to detect the impact of the fiber fabric during a drop.

2. The device for testing the tensile properties of microfiber fabrics according to claim 1, characterized in that: The fall detection assembly (4) also includes a movable frame (408) installed on one side of the drive housing (401) and a multi-stage hydraulic rod (409) installed at the bottom of the movable frame (408).

3. The device for testing the tensile properties of microfiber fabrics according to claim 2, characterized in that: The working platform (1) includes a detection seat (5) installed at the bottom of the guide rail plate (201) and a detection table (6) installed at the top of the detection seat (5). The bottom of the multi-stage hydraulic rod (409) is fixedly connected to the detection table (6).

4. The device for testing the tensile properties of microfiber fabrics according to claim 1, characterized in that: The surface of the spool (206) is used to wrap and fix the fiber fabric to be tested, and the spool (206) is adapted to the groove (205).

5. The device for testing the tensile properties of microfiber fabrics according to claim 1, characterized in that: The adjusting shell (301) is fixedly connected to two sides of a slider (7), and the slider (7) is slidably connected to the inner wall of the guide rail plate (201).

6. The device for testing the tensile properties of microfiber fabrics according to claim 1, characterized in that: The guide rail plate (201) has a sliding plate (8) slidably connected to its surface, and one side of the sliding plate (8) is fixedly connected to the drive housing (401).

7. The device for testing the tensile properties of microfiber fabrics according to claim 1, characterized in that: The screw seat (302) is threaded with a nut (9) for fixing the screw seat (302) to the top of the adjusting shell (301).

8. The device for testing the tensile properties of microfiber fabrics according to claim 1, characterized in that: A reinforcing pad (10) is fixedly connected to one side of the clamping plate (305), and a reinforcing groove (11) is provided inside the adjusting shell (301).

9. The device for testing the tensile properties of microfiber fabrics according to claim 3, characterized in that: A buffer damper (12) is fixedly connected to the top of the detection seat (5), and a buffer plate (13) is fixedly connected to the top of the buffer damper (12).

10. The device for testing the tensile properties of microfiber fabrics according to claim 1, characterized in that: The conveyor belt (404) is equipped with a driven roller (14), and the surface of the driven roller (14) is movably connected to the inner wall of the drive housing (401) through a bearing.

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