A sewing fabric tension detection device

Abstract

The application relates to the technical field of fabric tension detection, and provides a sewing fabric tension detection device, which comprises a device rack, a tension detector is installed on the device rack, a control device body is installed on the tension detector, clamping seats, clamping assemblies and sample cutting assemblies are further included, two clamping seats are arranged, one clamping seat is fixedly installed on a moving end of the tension detector through a tension sensor, the other clamping seat is fixedly installed on a working base of the tension detector, the two clamping seats are on the same straight line, the clamping assemblies are installed on the two clamping seats, and the sample cutting assembly is installed on the device rack; through the above technical scheme, the technical problem that it is difficult to guarantee stable pressure when a template or a cutting tool is used to cut sewing fabric in the prior art is solved, so that the size of the cut sample is deviated, the detection results of each sample are obviously different, and the detection result is affected.

Description

Technical Field

[0001] The embodiments of the present invention relate to the field of fabric tension detection technology, specifically, to a sewing fabric tension detection device. Background Technology

[0002] Sewing fabrics refer to textile materials specifically designed for sewing machine processing. They must withstand the puncture of sewing needles and the friction of yarn without tearing, and must not easily deform or twist during sewing. Furthermore, they must be compatible with sewing threads. Common sewing fabrics include woven fabrics (denim, shirt fabric), knitted fabrics (T-shirt fabric, rib fabric), and specialty fabrics (waterproof coated fabric, elastic spandex fabric), typically possessing good sewing properties, stability, and compatibility.

[0003] Testing the tension of sewing fabric is a crucial step in ensuring sewing quality and the quality of finished garments. When testing the tension of sewing fabric, first use a cutting knife to cut several strips of fabric of the same size. Then, clamp the upper and lower ends of the strips to the working end of the testing device, set the stretching speed, and continue until the sewing fabric breaks. Record the breaking strength and elongation at this point. These parameters can be used to indirectly reflect the fabric's tensile strength.

[0004] In existing technologies, when testing sewing fabrics, tools such as cutters are needed to cut the fabric into samples of equal size. However, due to the limitations of these tools, ordinary cutters or templates cannot provide stable and constant pressure. When cutting some thicker, thinner, or elastic sewing fabrics, the size can easily deviate from the set value due to cutter slippage or fabric deformation. This not only affects the size of the sample but also the flatness of the sample edges. In other words, during the testing process, the strength value measured for samples with smaller dimensions may be artificially high, while samples with uneven edges are prone to premature breakage during testing. This results in significant differences in the test results between each sample, leading to deviations in the test results and affecting the judgment of fabric tension. Summary of the Invention

[0005] To overcome the above-mentioned defects, the present invention provides a sewing fabric tension detection device to solve the technical problem in the prior art that it is difficult to ensure stable pressure when cutting sewing fabrics using tools such as templates or cutters, which leads to deviations in the size of the cut samples and significant differences in the test results between each sample, thus affecting the test results.

[0006] The technical solution of the present invention is as follows: A sewing fabric tension detection device includes a frame, a tension detector mounted on the frame, a control device body mounted on the tension detector, and further includes: The clamping base has two clamping bases. One clamping base is fixedly installed on the moving end of the tension detector via a tension sensor, and the other clamping base is fixedly installed on the working base of the tension detector. The two clamping bases are on the same straight line. Clamping components are installed on both clamping seats for clamping the sewing fabric sample; A sample cutting assembly, which is mounted on the device frame, is used to cut several sewing fabric patterns of the same specifications from the same piece of sewing fabric.

[0007] Based on the aforementioned solution, the clamping assembly includes: The positioning frame is fixedly installed on both the front and rear sides of the two clamping seats, and the two positioning frames on each clamping seat are symmetrically arranged. Sliding grippers are slidably installed inside each of the positioning frames, and two sliding grippers are symmetrically arranged in each of the clamping seats. A spring is fixedly installed between each of the sliding grippers and the positioning frame; The limiting closure part is fixedly installed on both the left and right sides of each clamping seat. The two limiting closure parts on each clamping seat are symmetrically arranged to control the synchronous movement of the two sliding jaws in the corresponding clamping seat. The clamping part is installed at the end of each sliding jaw that contacts the sewing fabric sample, for clamping the sewing fabric sample.

[0008] Based on the aforementioned solution, the limiting closure part includes: Clamping blocks are slidably installed on the left and right sides inside each clamping seat. Two clamping blocks on each clamping seat are symmetrically arranged, and each clamping block is provided with a V-shaped groove. Each of the sliding grippers has inclined surfaces on both sides, and the inclined surfaces of the sliding grippers slide in contact with one side of the V-groove. Limiting slide bars, with several limiting slide bars fixedly installed at equal intervals on each of the V-grooves; Each sliding gripper has several sliding grooves evenly spaced on its inclined surfaces on both sides, and these sliding grooves are slidably connected to several limiting slide bars. The first driving element is symmetrically and fixedly installed on each of the clamping seats, and the output end of the first driving element is fixedly connected to the clamping block.

[0009] Based on the aforementioned scheme, the clamping part includes a clamping plate, and each of the sliding jaws is fixedly mounted with the clamping plate. The protruding end of each clamping plate is provided with an arc, and each clamping plate has several strip grooves at equal intervals on the side that contacts the sewing fabric sample.

[0010] Based on the aforementioned scheme, the sample cutting assembly includes: A cutting frame, which is fixedly mounted on the device frame; A material feeding frame is fixedly installed on the cutting frame. A cover frame is provided on the material feeding frame. The cover frame is slidably engaged with the cutting frame. The material feeding frame and the cover frame are adapted to each other. The feeding frame and the covering frame are provided with a number of equally spaced through slots. The number of through slots on the feeding frame and the number of through slots on the covering frame correspond to and connect with each other. The feeding frame is provided with a feeding area and a transition area located on both sides of the feeding area. The transition area is higher than the feeding area. The second driving component is fixedly installed on the cutting machine frame, and the output end of the second driving component is fixedly connected to the cover material frame. A cutting section, installed inside the cutting machine frame, is used to cut sewing fabric samples.

[0011] Based on the aforementioned solution, the cutting section includes: A sliding frame is slidably installed inside the cutting machine frame. A plurality of cutting blades are installed on the sliding frame. The plurality of cutting blades correspond one-to-one with a plurality of through slots on the material feeding machine frame. The cutting blades are located inside the through slots and are in the transition zone. A driving component is installed inside the cutting frame to drive the sliding frame to move within the cutting frame.

[0012] The beneficial effects of the embodiments of the present invention are as follows: 1. In this invention, the design of the through groove positioning and the height difference of the transition zone makes it easy to cut the cutting knife into the fabric when cutting and sewing fabric, avoiding dimensional deviations caused by the deformation of elastic fabric, and at the same time, multiple samples can be cut out, which makes it easier to obtain stable test values.

[0013] 2. In this invention, during the testing of the tension of the sample, the sliding gripper is subjected to a tensile force. Through the cooperation of the limiting slide and the slide groove, the stability of the sliding gripper when subjected to a tensile force perpendicular to the direction of movement is improved under the action of the clamping block, preventing the sliding gripper from shifting or shaking due to the force, thereby improving the accuracy of the test.

[0014] 3. In this invention, the clamping assembly, the arc design of the extended end of the clamping plate, and the strip groove avoid stress concentration at the clamping position, ensuring uniform force on the sample during testing. This overcomes the problems of traditional manual clamping, such as difficulty in controlling clamping force and stress concentration affecting test results, thus improving the accuracy of test results. Furthermore, the sample cutting assembly provides stable and uniform pressure compared to traditional cutters, effectively avoiding dimensional deviations and uneven edges caused by cutter slippage and fabric deformation. This makes the test results of different samples in the same group more comparable, significantly improving the accuracy and reliability of the test data. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of the present invention and these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the clamping component in this invention; Figure 3 This is a cross-sectional view of the cooperation between the limiting closure part and the clamping part in this invention. Figure 4 This is a cross-sectional view of the limiting closure portion in this invention; Figure 5 This is a cross-sectional view of the sample cutting assembly in this invention. Figure 6 This is a cross-sectional view of the cutting section in this invention.

[0017] In the diagram: 1. Device frame; 2. Tension detector; 3. Control device body; 4. Clamping seat; 5. Tension sensor; 6. Positioning frame; 7. Sliding gripper; 8. Spring; 9. Clamping block; 10. V-groove; 11. First driving component; 12. Limiting slide bar; 13. Slide groove; 14. Clamping plate; 15. Cutting frame; 16. Material feeding frame; 17. Covering frame; 18. Second driving component; 19. Through groove; 20. Sliding frame; 21. Cutting blade; 22. Driving component. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it.

[0019] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0020] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0023] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] like Figures 1 to 6The diagram illustrates a sewing fabric tension testing device according to an embodiment of the present invention. The device includes a frame 1, a tension detector 2 mounted on the frame 1, a control device body 3 mounted on the tension detector 2, and two clamping seats 4. One clamping seat 4 is fixedly mounted on the moving end of the tension detector 2 via a tension sensor 5, and the other clamping seat 4 is fixedly mounted on the working base of the tension detector 2. The two clamping seats 4 are on the same straight line, and each clamping seat 4 is equipped with a clamping assembly for clamping the sewing fabric sample. The clamping assembly includes a positioning frame 6 and a sliding frame 6. The clamping base 4 includes a gripper 7, a spring 8, a limiting closure part, and a clamping part. Positioning frames 6 are fixedly installed on both the front and rear sides of the two clamping bases 4. The two positioning frames 6 on each clamping base 4 are symmetrically arranged. A sliding gripper 7 is slidably installed inside each positioning frame 6. The two sliding grippers 7 in each clamping base 4 are symmetrically arranged. A spring 8 is fixedly installed between each sliding gripper 7 and the positioning frame 6. Limiting closure parts are fixedly installed on both the left and right sides of each clamping base 4. The two limiting closure parts on each clamping base 4 are symmetrically arranged to control the synchronous movement of the two sliding grippers 7 in the corresponding clamping base 4. A clamping part is installed at the end of each sliding gripper 7 that contacts the sewing fabric sample for clamping the sewing fabric sample.

[0025] Specifically, when testing the tension of a sewing fabric, the sewing fabric is first placed inside the sample cutting assembly. Several sewing fabric samples of the same size are cut from a single piece of fabric (hereinafter referred to as samples). Then, one of the samples is moved into the position of the tension tester 2, and both ends of the sample are placed between the two clamping seats 4. Then, the limiting closing part in the clamping groove is activated, thereby simultaneously pushing the two sliding jaws 7 to move within the positioning frame 6 until the sliding jaws 7 move the clamping part to contact the sample and fix the sample. Then, the limiting closing part is closed and locked. At this time, the sample surface is flat and without wrinkles, and the test can begin. The tension tester 2 is turned on by the control device body 3. The movement of the moving end of the tension tester 2 causes the sample to be subjected to tension, and the tension speed is set. During the test, the tension sensor 5 is equipped with a signal transmitter, and the control device body 3 is equipped with a matching signal transmitter. After the tension sensor 5 detects the corresponding data, it sends the data to the signal receiver via the signal transmitter. At this time, the control device body 3 can analyze the tension on the sample using this data, perform real-time detection of this data, and convert the tension data into electrical signals. These electrical signals are processed and converted into digital or analog signals, and recorded for subsequent analysis. By analyzing the tension data, the tension that the sewing fabric can withstand is determined until the sample breaks. Then, the limiting closure is released, and the spring 8 is pulled, sending the sliding gripper 7 into the positioning frame 6, thereby releasing the sample. After the broken sample is removed, the next sample is clamped, and the above operation steps are repeated to test multiple samples. By using the data on the breaking strength and deformation rate of multiple samples cut from the same sewing fabric, the tension of the sewing fabric is indirectly reflected. Thus, by using the tension data of the sewing fabric, the processing quality can be optimized, sewing efficiency can be improved, and the quality of the stitches during sewing can be enhanced.

[0026] The above, such as Figures 2 to 4 As shown, the limiting closure part includes clamping blocks 9 and first driving members 11. Clamping blocks 9 are slidably installed on both the left and right sides inside each clamping seat 4. Two clamping blocks 9 on each clamping seat 4 are symmetrically arranged. Each clamping block 9 has a V-shaped groove. Both sides of each sliding jaw 7 are set as inclined surfaces. The inclined surfaces of the sliding jaw 7 slide and engage with one side of the V-shaped groove. Two first driving members 11 are symmetrically and fixedly installed on each clamping seat 4. The first driving members 11 are preferably electric cylinders. The output end of the first driving member 11 is fixedly connected to the clamping block 9. It also includes limiting slide bars 12 and sliding grooves 13. Several limiting slide bars 12 are fixedly installed at equal intervals on each V-shaped groove. Several sliding grooves 13 are slidably connected to several limiting slide bars 12 on the inclined surfaces on both sides of each sliding jaw 7.

[0027] Specifically, when clamping the sample, one end of the sample is first placed between the two sliding jaws 7. Then, the two first driving components 11 are activated simultaneously, driving the two clamping blocks 9 to move until the V-groove of the clamping block 9, in conjunction with the inclined surface of the sliding jaw 7, pushes the two sliding jaws 7 to move, thereby clamping the sample. During the tension test of the sample, the sliding jaw 7 is subjected to tension. Through the cooperation of the limiting slide bar 12 and the slide groove 13, the stability of the sliding jaw 7 under the action of the clamping block 9 is improved, thereby improving the accuracy of the test. After the test, when it is necessary to remove the broken sample, the first driving component 11 is retracted, causing the clamping block 9 to move. Under the action of the spring 8, the sliding jaw 7 can be moved back to its original position, and then the broken sample can be removed.

[0028] The above, such as Figure 3 As shown, the clamping part includes a clamping plate 14. Each sliding jaw 7 is fixedly mounted with a clamping plate 14. The extended end of each clamping plate 14 is provided with an arc. Each clamping plate 14 has several strip grooves at equal intervals on the side that contacts the sewing fabric sample.

[0029] Specifically, the sample is clamped by the clamping plate 14, which is in close contact with the end of the sample. The clamping plate 14 is made of a material with a certain degree of flexibility. Furthermore, the curvature of the extended end of the clamping plate 14 can prevent stress concentration at the clamping position of the sample when it is clamped, thereby making the test more accurate.

[0030] like Figure 5 , Figure 6As shown, the sample cutting assembly is mounted on the device frame 1 and is used to cut several sewing fabric patterns of the same specifications from the same piece of sewing fabric. The sample cutting assembly includes a cutting frame 15, a feeding frame 16, a second drive unit 18, and a cutting section. The cutting frame 15 is fixedly mounted on the device frame 1, and the feeding frame 16 is fixedly mounted on the cutting frame 15. A covering frame 17 is provided on the feeding frame 16. The covering frame 17 is slidably engaged with the cutting frame 15. The feeding frame 16 and the covering frame 17 are adapted to each other. The 7 is also provided with several equally spaced through slots 19. The several through slots 19 on the feeding frame 16 correspond one-to-one with the several through slots 19 on the covering frame 17 and are connected. The feeding frame 16 is provided with a feeding area and a transition area located on both sides of the feeding area. The transition area is higher than the feeding area. The second drive unit 18 is fixedly installed on the cutting frame 15. The second drive unit 18 is preferably in the form of an electric cylinder. The output end of the second drive unit 18 is fixedly connected to the covering frame 17. The cutting part is installed inside the cutting frame 15 and is used to cut the sewing fabric sample.

[0031] Specifically, when cutting the sample, the sewing fabric (set to a rectangular shape) is placed in the placement area on the placement frame 16, and then the second drive unit 18 is activated. The second drive unit 18 pushes the cover frame 17 to move until the cover frame 17 moves above the placement frame 16 and the cover frame 17 and the placement frame 16 form a whole, thereby fixing the sewing fabric. At this time, the cutting part is activated. Through the setting of the cutting part, the sewing fabric is cut into several samples along several through slots 19. After the cutting is completed, the cover frame 17 is retracted and the cut samples can be taken out.

[0032] The above, such as Figure 6 As shown, the cutting section includes a sliding frame 20 and a driving component 22. The sliding frame 20 is slidably installed inside the cutting machine frame 15. Several cutting blades 21 are installed on the sliding frame 20. The several cutting blades 21 correspond one-to-one with several through slots 19 on the material feeding frame 16. The cutting blades 21 are located inside the through slots 19 and are in the transition zone. The driving component 22 is installed inside the cutting machine frame 15 to drive the sliding frame 20 to move within the cutting machine frame 15.

[0033] The drive component 22 consists of a motor, an adjusting screw, and an adjusting nut. Specifically, when cutting the sewing fabric, the drive component 22 can be activated, that is, the motor is started to drive the adjusting screw to rotate, the adjusting screw drives the adjusting nut to move, and the adjusting nut is fixedly connected to the sliding frame 20, thereby driving the sliding frame 20 to move. The movement of the sliding frame 20 can drive the cutting blade 21 to move, thereby cutting the sewing fabric with the cutting blade 21.

[0034] The working principle or usage process of this application is as follows: When testing the tension of a sewing fabric, the sewing fabric is first placed in the placement area on the placement frame 16. Then, the second drive unit 18 is activated, which pushes the cover frame 17 to move until the cover frame 17 moves above the placement frame 16 and the cover frame 17 and the placement frame 16 form a whole, thus fixing the sewing fabric. At this time, the drive component 22 is activated, that is, the motor is started to drive the adjusting screw to rotate. The adjusting screw drives the adjusting nut to move. The adjusting nut is fixedly connected to the sliding frame 20, thereby driving the sliding frame 20 to move. The movement of the sliding frame 20 can drive the cutting blade 21 to move, thereby cutting the sewing fabric with the cutting blade 21. The sewing fabric is cut into several samples along several through grooves 19. After the cutting is completed, the cover frame 17 is retracted and the cut samples are taken out.

[0035] During testing, one of the samples is moved into position 2 of the tension tester, and both ends of the sample are placed between the two clamping seats 4. When clamping the sample, one end of the sample is first placed between the two sliding jaws 7, and then the two first driving components 11 are activated simultaneously. The two first driving components 11 simultaneously drive the two clamping blocks 9 to move until the V-groove of the clamping block 9, in cooperation with the inclined surface of the sliding jaw 7, simultaneously pushes the two sliding jaws 7 to move within the positioning frame 6 until the clamping plate 14 is in close contact with the sample, thereby clamping the sample. At this time, the first driving component 11 can be closed and locked, and the test of the sample can begin.

[0036] During testing, the tension detector 2 is activated via the control device 3. The movement of the moving end of the tension detector 2 applies tension to the sample, and the stretching speed is set. During the testing process, the tension sensor 5, equipped with a signal transmitter, and the control device 3, equipped with a matching signal receiver, transmits the data detected by the tension sensor 5 to the signal receiver via the signal transmitter. The control device 3 can then analyze the tension on the sample using this data, perform real-time monitoring, and convert the tension data into electrical signals. These electrical signals are processed and converted into digital or analog signals, which are then recorded for subsequent analysis. By analyzing the tension data, the tension that the sewing fabric can withstand is determined until the sample breaks. During the tension test, the sliding gripper 7 is subjected to tension. Through the cooperation of the limiting slide bar 12 and the slide groove 13, and under the action of the clamping block 9, the stability of the sliding gripper 7 when subjected to tension perpendicular to the direction of movement is improved, thereby increasing the accuracy of the test.

[0037] After the test, when it is necessary to remove the broken sample, the first drive component 11 is retracted, causing the clamping block 9 to move. Under the action of the spring 8, the sliding jaw 7 can be moved back to its original position. Then, the broken sample is removed. After removing the broken sample, the next sample is clamped. The above operation steps are repeated to test multiple samples. By using the data on the breaking strength and deformation rate of multiple samples cut from the same sewing fabric, the tension of the sewing fabric is indirectly reflected. Thus, by using the tension data of the sewing fabric, the processing quality can be optimized, the sewing efficiency can be improved, and the quality of the stitches during sewing can be enhanced.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A sewing fabric tension detection device, comprising a device frame (1), a tension detector (2) mounted on the device frame (1), and a control device body (3) mounted on the tension detector (2), characterized in that, Also includes: Clamping seat (4), two clamping seats (4) are provided. One clamping seat (4) is fixedly installed on the moving end of the tension detector (2) through a tension sensor (5), and the other clamping seat (4) is fixedly installed on the working base of the tension detector (2). The two clamping seats (4) are on the same straight line. Clamping components are installed on both clamping seats (4) for clamping the sewing fabric sample; The sample cutting assembly is installed on the device frame (1) and is used to cut out several sewing fabric patterns of the same specifications from the same piece of sewing fabric. The sample cutting assembly includes: A cutting frame (15) is fixedly mounted on the device frame (1); A material placement frame (16) is fixedly installed on the cutting frame (15). A cover frame (17) is provided on the material placement frame (16). The cover frame (17) is slidably engaged with the cutting frame (15). The material placement frame (16) and the cover frame (17) are adapted to each other. The second driving component (18) is fixedly installed on the cutting frame (15), and the output end of the second driving component (18) is fixedly connected to the cover frame (17); A cutting section, which is installed inside the cutting frame (15), is used to cut sewing fabric samples; The feeding frame (16) and the covering frame (17) are also provided with a number of equally spaced through slots (19). The number of through slots (19) on the feeding frame (16) corresponds to and connects with the number of through slots (19) on the covering frame (17). The feeding frame (16) is provided with a feeding area and a transition area located on both sides of the feeding area. The transition area is higher than the feeding area. The cutting portion includes: A sliding frame (20) is slidably installed inside the cutting machine frame (15). A plurality of cutting blades (21) are installed on the sliding frame (20). The plurality of cutting blades (21) correspond one-to-one with a plurality of through slots (19) on the material placement frame (16). The cutting blades (21) are located inside the through slots (19) and are located in the transition zone.

2. The sewing fabric tension detection device according to claim 1, characterized in that, The clamping assembly includes: Positioning frame (6), the positioning frame (6) is fixedly installed on both the front and rear sides of the two clamping seats (4), and the two positioning frames (6) on each clamping seat (4) are arranged symmetrically; Sliding gripper (7), each of the positioning frames (6) has a sliding gripper (7) slidably installed inside, and the two sliding grippers (7) in each clamping seat (4) are symmetrically arranged; Spring (8), each of the sliding grippers (7) and the positioning frame (6) is fixedly installed with the spring (8); The limiting closure part is fixedly installed on the left and right sides of each clamping seat (4). The two limiting closure parts on each clamping seat (4) are symmetrically arranged to control the synchronous movement of the two sliding jaws (7) in the corresponding clamping seat (4). The clamping part is installed at the end of each sliding jaw (7) that contacts the sewing fabric sample, for clamping the sewing fabric sample.

3. The sewing fabric tension detection device according to claim 2, characterized in that, The limiting closure portion includes: Clamping blocks (9), each clamping seat (4) has clamping blocks (9) slidably installed on both the left and right sides inside, and the two clamping blocks (9) on each clamping seat (4) are symmetrically arranged, and each clamping block (9) has a V-shaped groove (10). Each of the sliding jaws (7) has inclined surfaces on both sides, and the inclined surfaces of the sliding jaws (7) slide in cooperation with one side of the V-groove (10); Two first driving elements (11) are symmetrically and fixedly installed on each of the clamping seats (4), and the output end of the first driving element (11) is fixedly connected to the clamping block (9).

4. The sewing fabric tension detection device according to claim 3, characterized in that, Also includes: Limiting slides (12), a plurality of limiting slides (12) are fixedly installed at equal intervals on each of the V-grooves (10); The sliding groove (13) is provided at equal intervals on the inclined surfaces on both sides of each sliding gripper (7), and the sliding groove (13) is slidably connected to the limiting slide bar (12).

5. A sewing fabric tension detection device according to claim 4, characterized in that, The clamping part includes a clamping plate (14), and each of the sliding jaws (7) is fixedly mounted with the clamping plate (14). The extended end of each clamping plate (14) is provided with an arc. Each clamping plate (14) has several strip grooves at equal distances on the side that contacts the sewing fabric sample.

6. The sewing fabric tension detection device according to claim 5, characterized in that, The cutting section also includes: The driving component (22) is installed inside the cutting frame (15) to drive the sliding frame (20) to move within the cutting frame (15).

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