Textile fabric detection two-way stretching mechanism

Abstract

The invention belongs to the technical field of textile fabric detection, and particularly relates to a textile fabric detection two-way stretching mechanism which comprises a rack, a first driving motor is fixedly installed at the left end of the rack, a second driving motor is fixedly installed at the front end of the rack, first driving lead screws are rotationally installed on the upper side of the rack in the transverse direction and the longitudinal direction, and second driving lead screws are rotationally installed on the upper side of the rack. Guide rods are fixedly mounted on the upper side of the rack in the transverse direction and the longitudinal direction, two sets of sliding bases are mounted on the two sets of first driving lead screws, guide blocks are fixedly mounted on the lower sides of the four sets of sliding bases, and threaded sleeves are fixedly mounted on the lower sides of the four sets of sliding bases; when the textile fabric is clamped, a worker can rotate a sliding frame to enable the sliding frame to move on a second driving lead screw, the sliding frame moves to drive a guide column installed on the upper side to move, the guide column moves to enable four sets of expansion assemblies to expand or contract, and then the distances among the four sets of clamping assemblies are adjusted; the device is suitable for textile fabrics with different sizes.

Description

Technical Field

[0001] This invention belongs to the field of textile fabric testing technology, specifically a biaxial tensile testing mechanism for textile fabrics.

[0002] Background Techniques

[0003] After production, textile fabrics undergo various performance tests to assess their properties. Tensile performance testing is a common test item, typically involving bidirectional stretching of the fabric to examine the warp and weft threads.

[0004] In the textile industry, the quality and performance of fabrics are of paramount importance. To ensure the stability and durability of fabrics in various applications, biaxial tensile testing is an indispensable step. However, existing textile fabric tensile testing equipment suffers from unstable clamping, causing the fabric to detach during stretching, which makes it impossible to accurately measure the tensile strength of the fabric. Furthermore, existing textile fabric tensile testing equipment cannot perform fixed stretching according to the size of the fabric, thus affecting the accuracy and practicality of the test.

[0005] Therefore, the present invention provides a bidirectional tensile testing mechanism for textile fabrics. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a biaxial tensile testing mechanism for textile fabrics, comprising a frame, a first drive motor fixedly installed at the left end of the frame, a second drive motor fixedly installed at the front end of the frame, first drive screws rotatably installed on the upper side of the frame in both the horizontal and vertical directions, guide rods fixedly installed on the upper side of the frame in both the horizontal and vertical directions, two sets of slides installed on each of the two sets of first drive screws, guide blocks fixedly installed on the lower side of each of the four sets of slides, threaded sleeves fixedly installed on the lower side of each of the four sets of slides, the four sets of threaded sleeves being threadedly connected to the two sets of first drive screws, extension components provided on the upper side of each of the four sets of slides, the extension components on the four sets of slides being arranged opposite to each other, and clamping components provided on each of the four sets of extension components.

[0008] As a preferred technical solution of this application, multiple sets of adjustable support feet are fixedly installed on the lower side of the frame, and the lower sides of the multiple sets of adjustable support feet are in contact with the ground.

[0009] As a preferred technical solution of this application, the expansion assembly includes an expansion bracket, which is fixedly installed on the upper side of the slide. An expansion seat is fixedly installed on the upper end of the expansion bracket. Expansion guide frames are symmetrically installed on the left side of the expansion seat. A scissor-type expansion frame is installed between the two sets of expansion guide frames. A third drive motor is fixedly installed inside the expansion seat. A second drive screw is fixedly installed on the output shaft of the third drive motor. A slide is threaded onto the second drive screw. Guide posts are fixedly installed on both sides of the upper side of the slide. Guide grooves are provided on both sets of expansion guide frames. The two sets of guide posts are movably inserted into the two sets of guide grooves. Connecting rods are installed at the cross-connection points of the scissor-type expansion frames. The upper and lower ends of the multiple sets of connecting rods are slidably connected to the opposite side of the two sets of expansion guide frames.

[0010] As a preferred technical solution of this application, the two sets of expansion guide frames installed on the left side of the expansion base are arranged in a cross shape, and the front-to-back length of the two sets of expansion guide frames is greater than the front-to-back width of the scissor-type expansion frame.

[0011] As a preferred technical solution of this application, the clamping assembly includes multiple sets of rotating seats, which are movably mounted on the left end of the scissor extension frame. Each set of rotating seats has a clamping arm installed in the left end of each set of rotating seats. Each set of clamping arms has multiple sets of movable slots on the opposite end of each set of clamping arms. Each set of movable slots on the opposite end of each set of clamping arms has an extension rod installed in each set of movable slots. Each set of movable slots on the opposite end of each set of clamping arms has a slot. Each set of clamping arms has a fixing component installed in the slot on the left side of each set of clamping arms. Anti-rotation components are installed on the rotating seats on both the front and rear sides of the left end of the scissor extension frame.

[0012] As a preferred technical solution of this application, the fixing component includes a plug, the slot is movably inserted into the slot, the plug has a clamping cavity, an upper clamping block is movably installed in the upper side of the clamping cavity, two sets of adjusting screws are rotatably installed in the plug, the lower ends of the two sets of adjusting screws are threaded into the upper clamping block, and a lower clamping block is fixedly installed in the lower side of the clamping cavity. The upper clamping block and the lower clamping block are arranged opposite to each other.

[0013] As a preferred technical solution of this application, the lower side of the upper clamping block is provided with multiple sets of anti-slip teeth, and the upper side of the lower clamping block is provided with multiple sets of anti-slip grooves. The multiple sets of anti-slip teeth at the lower end of the upper clamping block are adapted to the inner walls of the multiple sets of anti-slip grooves on the upper side of the lower clamping block.

[0014] As a preferred technical solution of this application, the anti-rotation component includes two sets of ratchet wheels. The two sets of ratchet wheels are fixedly installed on clamping arms mounted in the rotating seats on both sides of the left end of the scissor extension frame. A knob is fixedly installed on the two sets of ratchet wheels. A fixing block is installed on the rotating seats on both sides of the left end of the scissor extension frame. A bearing seat is fixedly installed on the opposite side of the two sets of fixing blocks. A pawl is rotatably installed on the upper end of the two sets of bearing seats. A torsion spring is provided at the connection between the two sets of bearing seats and the two sets of pawls.

[0015] As a preferred technical solution of this application, the inner wall of the slot and the cross-section of the insert are both T-shaped, and the insert is adapted to the inner wall of the slot.

[0016] As a preferred technical solution of this application, the inner wall diameter of the multiple sets of clamping arms mounted on the multiple sets of rotating seats is larger than the outer wall diameter of the multiple sets of clamping arms.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The present invention discloses a bidirectional tensile testing mechanism for textile fabrics. When clamping the textile fabric, the operator can rotate the slide to move the slide on the second drive screw. The movement of the slide drives the guide column installed on the upper side to move. The movement of the guide column causes the four sets of expansion components to expand or contract, thereby adjusting the distance between the four sets of clamping components to accommodate textile fabrics of different sizes. This realizes the function of bidirectional tensile testing of textile fabrics of different sizes, thereby improving the accuracy and practicality of the test.

[0019] 2. The bidirectional stretching mechanism for textile fabric detection described in this invention uses a first drive motor and a second drive motor to drive two sets of first drive screws to rotate. The two sets of first drive screws drive four sets of slides to move. The movement of the four sets of slides drives four sets of extension components and four sets of clamping components installed at the upper end to move, thereby realizing the function of bidirectional stretching of textile fabric, preventing the fabric from falling off during stretching, and improving the accuracy of measurement.

[0020] 3. The bidirectional tensile testing mechanism for textile fabrics described in this invention uses multiple sets of inserts to hold the textile fabric at its edge. The upper clamping block, two sets of adjusting screws, and the lower clamping block within these inserts work together to fix the inserts to the edge of the textile fabric. The inserts are then inserted into slots on multiple clamping arms. Rotating these clamping arms winds up the textile fabric, and the ratchet, shaft seat, and pawl work together to stably clamp the fabric, preventing it from slipping off during the stretching process and further improving measurement accuracy. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a top view of the structure in this invention;

[0024] Figure 3 This is a top view of the frame structure in this invention;

[0025] Figure 4 This is a front view schematic diagram of the extended component in this invention;

[0026] Figure 5 This is a schematic diagram of the left-side structure of the extended component in this invention;

[0027] Figure 6 This is a front view structural diagram of the fixing component in this invention;

[0028] Figure 7 This is a schematic cross-sectional view of the left side of the fixing component in this invention;

[0029] Figure 8 This is a rear view cross-sectional schematic diagram of the clamping arm in this invention;

[0030] Figure 9 yes Figure 7 Enlarged view of a portion of point A in the middle;

[0031] Figure 10 yes Figure 8 Enlarged view of section B in the middle.

[0032] In the diagram: 1. Frame; 2. Adjustable support foot; 3. First drive motor; 4. Second drive motor; 5. First drive screw; 6. Guide rod; 7. Slide; 8. Guide block; 9. Screw sleeve; 10. Extension bracket; 11. Extension seat; 12. Extension guide frame; 13. Scissor-type extension frame; 14. Third drive motor; 15. Second drive screw; 16. Slide; 17. Guide post; 18. Guide groove; 19. Connecting rod; 20. Rotary seat; 21. Clamping arm; 22. Movable groove; 23. Extension rod; 24. Return spring; 25. Slot; 26. Insert block; 27. Clamping cavity; 28. Upper clamping block; 29. ​​Adjusting screw; 30. Lower clamping block; 31. Anti-slip tooth; 32. Anti-slip groove; 33. Ratchet; 34. Knob; 35. Fixing block; 36. Shaft seat; 37. Pawl. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 10As shown in the embodiment of the present invention, a biaxial tensile testing mechanism for textile fabrics includes a frame 1. A first drive motor 3 is fixedly installed at the left end of the frame 1, and a second drive motor 4 is fixedly installed at the front end of the frame 1. A first drive screw 5 is rotatably installed on the upper side of the frame 1 in both the horizontal and vertical directions. A guide rod 6 is fixedly installed on the upper side of the frame 1 in both the horizontal and vertical directions. Two sets of slides 7 are installed on each of the two sets of first drive screws 5. Guide blocks 8 are fixedly installed on the lower side of each of the four sets of slides 7. Screw sleeves 9 are fixedly installed on the lower side of each of the four sets of slides 7. The four sets of screw sleeves 9 are threadedly connected to the two sets of first drive screws 5. An extension component is provided on the upper side of each of the four sets of slides 7. The extension components on the four sets of slides 7 are arranged opposite to each other. Clamping components are provided on each of the four sets of extension components.

[0035] The output shafts of the first drive motor 3 and the second drive motor 4 drive two sets of first drive screws 5 to rotate. As the two sets of first drive screws 5 rotate, they drive four sets of slide blocks 7 to move in opposite directions, thereby driving the extension assembly and clamping assembly to move. The extension assembly and clamping assembly then perform bidirectional stretching on the textile fabric. During the stretching process, due to the design of the extension assembly, the distance between the clamping assemblies can be flexibly adjusted to adapt to textile fabrics of different sizes. This not only improves the flexibility of the test, but also ensures the stability and accuracy of the stretching process.

[0036] like Figures 1 to 2 As shown, multiple sets of adjustable support feet 2 are fixedly installed on the lower side of the frame 1, and the lower side of the multiple sets of adjustable support feet 2 is in contact with the ground.

[0037] The installation of multiple adjustable support feet 2 improves the stability of the frame 1 in contact with the ground, making it less prone to shaking or tipping during the stretching process, thus further ensuring the accuracy and safety of the test. At the same time, the installation of multiple adjustable support feet 2 also facilitates the fixing and installation of the frame 1, improving the ease of use.

[0038] like Figures 4 to 5 As shown, the expansion assembly includes an expansion bracket 10, which is fixedly installed on the upper side of the slide 7. An expansion seat 11 is fixedly installed on the upper end of the expansion bracket 10. An expansion guide frame 12 is symmetrically installed on the left side of the expansion seat 11. A scissor-type expansion frame 13 is installed between the two sets of expansion guide frames 12. A third drive motor 14 is fixedly installed inside the expansion seat 11. A second drive screw 15 is fixedly installed on the output shaft of the third drive motor 14. A slide 16 is threaded onto the second drive screw 15. Guide posts 17 are fixedly installed on both sides of the upper side of the slide 16. Guide grooves 18 are opened on both sets of expansion guide frames 12. The two sets of guide posts 17 are movably inserted into the two sets of guide grooves 18. Connecting rods 19 are installed at the cross-connection points of the scissor-type expansion frames 13. The upper and lower ends of the multiple sets of connecting rods 19 are slidably connected to the opposite side of the two sets of expansion guide frames 12.

[0039] The output shaft of the third drive motor 14 drives the second drive screw 15 to rotate. Since the slide 16 is threaded onto the second drive screw 15, the rotation of the second drive screw 15 will drive the slide 16 to move. The movement of the slide 16 will cause the two sets of guide posts 17 to slide in the guide groove 18, thereby pushing or pulling the scissor-type extension frame 13 to expand or contract to adapt to textile fabrics of different widths, improving the adaptability and flexibility of the device. At the same time, the setting of multiple sets of connecting rods 19 not only enhances the stability of the cross connection of the scissor-type extension frame 13, but also ensures the smoothness and fluidity of the scissor-type extension frame 13 during the expansion or contraction process, further improving the accuracy and efficiency of the tensile test.

[0040] like Figures 4 to 5 As shown, the two sets of extension guide frames 12 installed on the left side of the extension base 11 are both arranged in a cross shape, and the front and rear lengths of the two sets of extension guide frames 12 are greater than the front and rear widths of the scissor-type extension frame 13.

[0041] The cross-shaped design of the two sets of extension guide frames 12 ensures that the scissor extension frame 13 maintains a stable structure during expansion or contraction. At the same time, the front-to-back length of the two sets of extension guide frames 12 is greater than the front-to-back width of the scissor extension frame 13, which not only increases the support area of ​​the extension components and improves the overall stability, but also ensures that the textile fabric is evenly stressed during the stretching process, avoiding test errors caused by uneven stress, and further improving the accuracy and reliability of the tensile test.

[0042] like Figures 6 to 10 As shown, the clamping assembly includes multiple sets of rotating bases 20, which are movably mounted on the left end of the scissor extension frame 13. Each set of rotating bases 20 has a clamping arm 21 installed in its left end. Each set of clamping arms 21 has multiple sets of movable slots 22 at their opposite ends. Each set of movable slots 22 at their opposite ends has an extension rod 23 installed in each of the multiple sets of movable slots 22 at their opposite ends. Each set of movable slots 22 at their opposite ends has a return spring 24 installed in each of the multiple sets of clamping arms 21. Each set of clamping arms 21 has a slot 25 on its left side. Each set of clamping arms 21 has a fixing component installed in its slot 25 on its left side. Anti-rotation components are installed on the rotating bases 20 on both the front and rear sides of the left end of the scissor extension frame 13.

[0043] By rotating multiple sets of rotating seats 20, operators can flexibly adjust the angle of the rotating seats 20 according to the size and shape of the textile fabric to adapt to textile fabrics of different shapes and sizes, thus improving the adaptability and practicality of the device. At the same time, the extension rods 23 and return springs 24 installed in the multiple movable slots 22 opened at the opposite ends of the multiple sets of clamping arms 21 further enhance the stability of the interconnection of the multiple sets of clamping arms 21. In addition, the setting of the fixing component ensures the edge clamping and fixing of the textile fabric, and the setting of the anti-rotation component effectively prevents the rotation of the multiple sets of rotating seats 20 of the multiple sets of clamping arms 21 during the stretching process, ensuring the stability and reliability of the clamping components, thereby further improving the accuracy and safety of the tensile test.

[0044] like Figures 6 to 10 As shown, the fixing component includes a plug 26, a slot 25 is movably inserted into the slot 25, a clamping cavity 27 is provided in the plug 26, an upper clamping block 28 is movably installed in the upper side of the clamping cavity 27, two sets of adjusting screws 29 are rotatably installed in the plug 26, the lower ends of the two sets of adjusting screws 29 are threaded into the upper clamping block 28, and a lower clamping block 30 is fixedly installed in the lower side of the clamping cavity 27. The upper clamping block 28 and the lower clamping block 30 are arranged opposite to each other.

[0045] Two sets of adjusting screws 29 are threaded into the upper clamping block 28, which not only enhances the connection stability between the upper clamping block 28 and the insert block 26, but also allows the operator to adjust the position of the upper clamping block 28 by rotating the adjusting screws 29, thereby achieving tight clamping of the edge of the textile fabric. When the upper clamping block 28 moves down to be opposite the lower clamping block 30, the two act together on the edge of the textile fabric, achieving stable clamping of the textile fabric and preventing it from falling off during the stretching process. This further improves the accuracy and safety of the stretching test. In addition, the movable insertion design of the insert block 26 and the slot 25 allows the fixing component to be flexibly installed on the clamping component, which is convenient for the operator to adjust and replace according to actual needs, improving the practicality and convenience of the device.

[0046] like Figures 6 to 10 As shown, the lower side of the upper clamping block 28 is provided with multiple sets of anti-slip teeth 31, and the upper side of the lower clamping block 30 is provided with multiple sets of anti-slip grooves 32. The multiple sets of anti-slip teeth 31 at the lower end of the upper clamping block 28 are adapted to the inner wall of the multiple sets of anti-slip grooves 32 on the upper side of the lower clamping block 30.

[0047] The matching design of multiple sets of anti-slip teeth 31 and multiple sets of anti-slip grooves 32 further enhances the clamping force and stability between the upper clamping block 28 and the lower clamping block 30, so that the textile fabric can be subjected to uniform clamping force during the stretching process, avoiding test errors caused by unstable clamping. At the same time, the design of multiple sets of anti-slip teeth 31 and multiple sets of anti-slip grooves 32 also improves the adaptability of the fixing components to textile fabrics of different thicknesses, enabling the device to be widely used in testing various types of textile fabrics, further expanding the application range and practicality of the device.

[0048] like Figures 4 to 6 As shown, the anti-rotation component includes two sets of ratchet wheels 33. The two sets of ratchet wheels 33 are fixedly installed on the clamping arms 21 installed in the rotating seats 20 on the front and rear sides of the left end of the scissor extension frame 13. A knob 34 is fixedly installed on the two sets of ratchet wheels 33. A fixing block 35 is installed on the rotating seats 20 on the front and rear sides of the left end of the scissor extension frame 13. A bearing seat 36 is fixedly installed on the opposite side of the two sets of fixing blocks 35. A pawl 37 is rotatably installed on the upper end of the two sets of bearing seats 36. A torsion spring is provided at the connection between the two sets of bearing seats 36 and the two sets of pawls 37.

[0049] When it is necessary to clamp the textile fabric, the operator can manually rotate the knob 34. The knob 34 drives the ratchet 33 to rotate. Due to the cooperation between the pawl 37 and the ratchet 33, the ratchet 33 can be locked in one direction during rotation, thereby achieving stable fixation of the clamping arm 21 and preventing the clamping arm 21 from rotating during the stretching process. This ensures the stability and reliability of the clamping assembly. At the same time, the torsion spring allows the pawl 37 to automatically reset when no external force is applied, facilitating the operator to make the next adjustment and operation. In addition, through the cooperation of multiple sets of ratchet 33 and pawl 37, the entire anti-rotation assembly has stronger stability and load-bearing capacity, which can adapt to the testing needs of textile fabrics with a larger area, further improving the practicality and application range of the device.

[0050] like Figures 8 to 10 As shown, the inner wall of the slot 25 and the cross-section of the insert 26 are both T-shaped, and the insert 26 is adapted to the inner wall of the slot 25.

[0051] The T-shaped design not only enhances the connection stability between the insert 26 and the slot 25, but also makes the fixing components easier to install and remove, reducing the likelihood of loosening or falling off, thus further improving the reliability and durability of the device. Simultaneously, the T-shaped design increases the contact area between the fixing and clamping components, resulting in a more secure fixation. Even under high-intensity tensile testing, it maintains a stable clamping effect, ensuring the accuracy and safety of the test.

[0052] like Figures 6 to 7As shown, the inner diameter of the multi-set rotary table 20 where the multi-set clamping arms 21 are mounted is larger than the outer diameter of the multi-set clamping arms 21.

[0053] To ensure smooth winding of the textile fabric and sufficient space for unwinding operations after winding, the design and function of the rotating clamping arms 21 allow for easy winding of the fabric while securing it in place. This prevents slippage or deformation of the fabric during winding, facilitating convenient winding and unwinding operations, thus improving work efficiency and fabric utilization. It not only ensures the stability and safety of the textile fabric during winding but also provides convenience for operators, making the entire winding process smoother and more efficient.

[0054] Working principle: In use, the operator places multiple sets of insert blocks 26 onto the edge of the textile fabric. By rotating two sets of adjusting screws 29, the upper clamping block 28 moves downward, and multiple sets of anti-slip teeth 31 at the lower end of the upper clamping block 28 are tightly inserted into multiple sets of anti-slip grooves 32 on the upper side of the lower clamping block 30, thereby clamping and fixing the edge of the textile fabric. At this time, the matching design of multiple sets of anti-slip teeth 31 and multiple sets of anti-slip grooves 32 ensures that the textile fabric receives a uniform clamping force during stretching. Then, the multiple sets of insert blocks 26 are inserted into... The multiple clamping arms 21 are fitted into slots 25, and then, through the movable insertion design of multiple insert blocks 26 and multiple slots 25, the fixing components can be flexibly installed on the multiple clamping arms 21. Then, by twisting the ratchet 33 and knob 34 on both sides of the multiple clamping arms 21, the ratchet 33 rotates, which moves the pawl 37. The multiple clamping arms 21 then roll up and fix the textile fabric. The pawl 37, under the action of the torsion spring, locks onto the ratchet 33, thus completing the fixing of the multiple clamping arms 21. During the stretching process, the operator... By operating the output shafts of the first drive motor 3 and the second drive motor 4, the two sets of first drive screws 5 are driven to rotate, thereby driving the four sets of slides 7 to move in opposite directions. This, in turn, drives the four sets of slides 7, the four sets of extension brackets 10, the four sets of extension seats 11, and the four sets of scissor-type extension frames 13 to move. The movement of the four sets of scissor-type extension frames 13 drives the movement of multiple sets of rotating seats 20 and multiple sets of clamping arms 21, thereby performing bidirectional stretching of the textile fabric. When fixing textile fabrics of different sizes, the third drive motor 1 inside the four sets of extension seats 11... 4 drives the second drive screw 15 to rotate, thereby driving the slide 16 to move. The movement of the slide 16 causes the two sets of guide posts 17 to slide in the guide grooves 18 on the two sets of extension guide frames 12, pushing or pulling the two ends of the scissor extension frame 13 to expand or contract, and then driving the multiple sets of rotating seats 20 to expand. The expansion of the multiple sets of rotating seats 20 causes the multiple sets of clamping arms 21 to slide and unfold. The multiple sets of extension rods 23 between the multiple sets of clamping arms 21 slide in the multiple sets of movable grooves 22 to ensure that the multiple sets of clamping arms 21 are connected after unfolding.

[0055] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0056] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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 limiting the scope of protection of this invention.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A biaxial tensile testing mechanism for textile fabrics, comprising a frame (1), characterized in that: A first drive motor (3) is fixedly installed at the left end of the frame (1), and a second drive motor (4) is fixedly installed at the front end of the frame (1). A first drive screw (5) is rotatably installed on the upper side of the frame (1) in both the horizontal and vertical directions. A guide rod (6) is fixedly installed on the upper side of the frame (1) in both the horizontal and vertical directions. Two sets of slides (7) are installed on each of the two sets of first drive screws (5). A guide block (8) is fixedly installed on the lower side of each of the four sets of slides (7). A screw sleeve (9) is fixedly installed on the lower side of each of the four sets of slides (7). The four sets of screw sleeves (9) are threaded onto the two sets of first drive screws (5). An extension component is provided on the upper side of each of the four sets of slides (7). The extension components on the four sets of slides (7) are arranged opposite to each other. A clamping component is provided on each of the four sets of extension components.

2. The biaxial tensile testing mechanism for textile fabrics according to claim 1, characterized in that: The frame (1) has multiple sets of adjustable support feet (2) fixedly installed on its lower side, and the lower side of the multiple sets of adjustable support feet (2) is in contact with the ground.

3. The biaxial tensile testing mechanism for textile fabrics according to claim 1, characterized in that: The expansion assembly includes an expansion bracket (10), which is fixedly mounted on the upper side of the slide (7). An expansion seat (11) is fixedly mounted on the upper end of the expansion bracket (10). Expansion guide frames (12) are symmetrically mounted on the left side of the expansion seat (11). A scissor-type expansion frame (13) is installed between the two sets of expansion guide frames (12). A third drive motor (14) is fixedly mounted inside the expansion seat (11). A second drive wire is fixedly mounted on the output shaft of the third drive motor (14). The second drive screw (15) is threadedly connected to a slide (16). Guide posts (17) are fixedly installed on both sides of the upper side of the slide (16). Guide grooves (18) are opened on both sets of extended guide frames (12). The two sets of guide posts (17) are movably inserted into the two sets of guide grooves (18). Connecting rods (19) are installed at the cross connection of the scissor-type extended frames (13). The upper and lower ends of the multiple sets of connecting rods (19) are slidably connected to the opposite side of the two sets of extended guide frames (12).

4. The biaxial tensile testing mechanism for textile fabrics according to claim 3, characterized in that: The two sets of extension guide frames (12) installed on the left side of the extension base (11) are arranged in a cross shape, and the front and rear lengths of the two sets of extension guide frames (12) are greater than the front and rear widths of the scissor-type extension frame (13).

5. The biaxial tensile testing mechanism for textile fabrics according to claim 1, characterized in that: The clamping assembly includes multiple sets of rotating bases (20), which are movably mounted on the left end of the scissor extension frame (13). Each set of rotating bases (20) has a clamping arm (21) installed in the left end of each set of rotating bases (20). Each set of clamping arms (21) has multiple sets of movable slots (22) opened in the opposite end of each set of clamping arms (21). Each set of movable slots (22) opened in the opposite end of each set of clamping arms (21) has an extension rod (23) installed in each set of movable slots (22) opened in the opposite end of each set of clamping arms (21). Each set of movable slots (22) opened in the opposite end of each set of clamping arms (21) has a return spring (24) installed in each set of movable slots (22). Each set of clamping arms (21) has a slot (25) opened on the left side of each set of clamping arms (21). Each set of clamping arms (21) has a fixing component installed in the slot (25) on the left side of each set of clamping arms (21). Anti-rotation components are installed on the rotating bases (20) on both the front and rear sides of the left end of the scissor extension frame (13).

6. The biaxial tensile testing mechanism for textile fabrics according to claim 5, characterized in that: The fixing component includes a plug (26), the slot (25) is movably inserted into the slot (25), the plug (26) has a clamping cavity (27), an upper clamping block (28) is movably installed in the upper side of the clamping cavity (27), two sets of adjusting screws (29) are rotatably installed in the plug (26), the lower ends of the two sets of adjusting screws (29) are threaded into the upper clamping block (28), a lower clamping block (30) is fixedly installed in the lower side of the clamping cavity (27), and the upper clamping block (28) and the lower clamping block (30) are arranged opposite to each other.

7. The biaxial tensile testing mechanism for textile fabrics according to claim 6, characterized in that: The lower side of the upper clamping block (28) is provided with multiple sets of anti-slip teeth (31), and the upper side of the lower clamping block (30) is provided with multiple sets of anti-slip grooves (32). The multiple sets of anti-slip teeth (31) at the lower end of the upper clamping block (28) are adapted to the inner wall of the multiple sets of anti-slip grooves (32) on the upper side of the lower clamping block (30).

8. The biaxial tensile testing mechanism for textile fabrics according to claim 7, characterized in that: The anti-rotation component includes two sets of ratchet wheels (33). The two sets of ratchet wheels (33) are fixedly installed on the clamping arms (21) installed in the rotating seats (20) on the front and rear sides of the left end of the scissor extension frame (13). A knob (34) is fixedly installed on the two sets of ratchet wheels (33). A fixing block (35) is installed on the rotating seats (20) on the front and rear sides of the left end of the scissor extension frame (13). A bearing seat (36) is fixedly installed on the opposite side of the two sets of fixing blocks (35). A pawl (37) is rotatably installed on the upper end of the two sets of bearing seats (36). A torsion spring is provided at the connection between the two sets of bearing seats (36) and the two sets of pawls (37).

9. A biaxial tensile testing mechanism for textile fabrics according to claim 6, characterized in that: The inner wall of the slot (25) and the cross-section of the insert (26) are both T-shaped, and the insert (26) is adapted to the inner wall of the slot (25).

10. A biaxial tensile testing mechanism for textile fabrics according to claim 5, characterized in that: The inner wall diameter of the multiple sets of rotating bases (20) where multiple sets of clamping arms (21) are installed is greater than the outer wall diameter of the multiple sets of clamping arms (21).

Images