Automatic sample loading system for textile tensile test

Abstract

The present application relates to the technical field of textile testing, and specifically provides a textile tensile test automatic sample loading system, which comprises a sample grabbing device and a stock bin device for carrying textile samples to be grabbed, the sample grabbing device can grab the textile samples from the stock bin device, the sample grabbing device comprises a base, an electric steering seat, a frame, an upper clamping module and a lower clamping module, the middle part of the frame is connected with the electric steering seat, the electric steering seat is fixed on the base and can drive the frame to rotate within a range of 0°~90°, the upper clamping module and the lower clamping module are installed at both ends of the frame, the upper clamping module and the lower clamping module each comprise a grabbing clamping piece mechanism and an elastic auxiliary clamping piece matched with the grabbing clamping piece mechanism, the two ends of the textile sample are clamped by the grabbing clamping piece mechanisms of the upper clamping module and the lower clamping module, so that the textile sample is prevented from deviating during the clamping process, and the tightening degree of both sides of the textile sample is ensured to be consistent.

Description

Technical Field

[0001] This invention relates to the field of textile testing technology, and in particular to an automatic sample loading system for textile tensile testing. Background Technology

[0002] In existing technologies, tensile property testing of textiles requires loading each prepared fabric sample into the upper and lower clamps of a tensile testing machine one by one. After the test, the broken sample is removed, and then the next sample is installed. This manual clamping process is not only labor-intensive but also prone to human error, leading to improper sample clamping or operator injury. Secondly, because textile samples are soft and easily deformed, sample misalignment often occurs during clamping, resulting in uneven tension on both sides of the fabric. When the sample is under tension, this misalignment causes uneven stress, potentially causing premature tearing on one side and reducing the accuracy of the test results. Summary of the Invention

[0003] To address the problem that textile samples are soft and easily deformed, and that the samples often shift during clamping, resulting in inconsistent tightness on both sides of the fabric, this invention provides an automatic sample loading system for textile tensile testing.

[0004] The technical solution adopted by this invention to solve its technical problem is: an automatic sample loading system for textile tensile testing, including a sample gripping device and a hopper device for carrying textile samples to be gripped. The sample gripping device can grip textile samples from the hopper device. The sample gripping device includes a base, an electric steering seat, a frame, an upper clamping module and a lower clamping module. The electric steering seat is connected to the middle of the frame. The electric steering seat is fixed on the base and can drive the frame to rotate within the range of 0° to 90°. The upper clamping module and the lower clamping module are installed at both ends of the frame. Both the upper clamping module and the lower clamping module include a gripping clamping mechanism and an elastic auxiliary clamping piece that cooperates with the gripping clamping mechanism. The gripping clamping mechanism and the elastic auxiliary clamping piece are used to grip the textile sample.

[0005] Preferably, the upper clamping module and the lower clamping module further include a chassis, which is fixed to the end of the frame. Two symmetrically arranged rotating gears are rotatably mounted on the chassis, and a worm gear is disposed between the two rotating gears. The end of the worm gear is rotatably mounted on the chassis via a bearing seat. The two rotating gears mesh with the worm gear from both sides. A clamping drive motor is also fixed on the chassis. The output shaft of the clamping drive motor is coaxially fixed to the worm gear via a coupling. A main shaft and a secondary shaft are fixed at the axis positions of the two rotating gears, respectively. Connecting pieces are fixed on both the main shaft and the secondary shaft. The gripping clamping piece mechanism is detachably mounted on the main shaft via the connecting piece, and the elastic auxiliary clamping piece is fixed on the secondary shaft via another connecting piece.

[0006] Preferably, the gripping mechanism includes a needle plate, a needle assembly, a clamping plate, an adjusting slide, a screw seat, and an adjusting screw. The needle plate is detachably connected to the connecting piece. The needle assembly includes multiple needles fixed on the needle plate. The two sides of the adjusting slide are slidably connected to the two sides of the needle plate. The clamping plate is fixed on the adjusting slide and has through holes for avoiding the needle assembly. The screw seat is rotatably mounted in the middle of the needle plate and fixedly connected to one end of the adjusting screw. The adjusting screw passes through the middle of the adjusting slide and is threadedly connected to the adjusting slide. A locking screw is also threadedly connected to the side of the adjusting slide, and the end of the locking screw abuts against the needle plate.

[0007] Preferably, the needle group is centrally located and arranged in a narrow width, and the vertical projection of the needle group toward the needle plate falls entirely within the range of the needle plate. The multiple needles of the needle group are not vertically aligned in a row to avoid the linear weakening zone formed by vertical alignment.

[0008] Preferably, the hopper device includes a housing, a sample stacking plate, a support spring, and a spring compartment. The width of the housing is greater than the width of the needle plate. The top surface and two adjacent sides of the housing are open. The inner side of the housing forms a stacking cavity with a three-sided enclosure structure. The sample stacking plate is slidably installed in the stacking cavity. The spring compartment is fixed to the bottom of the housing. The support spring is fixed in the spring compartment and abuts against the bottom of the sample stacking plate. The sample stacking plate is used to place textile samples.

[0009] Preferably, an elastic baffle is fixed to the upper edge of the outer shell. The elastic baffle is bent toward the inside of the outer shell and is used to compress the textile sample located on the sample stacking plate.

[0010] Preferably, a lead screw slide module is also provided below the base, and the base is fixed on the slide of the lead screw slide module.

[0011] Preferably, the lower clamping module further includes a sliding arm, a lead screw seat, a lifting motor, and a lifting lead screw. One end of the sliding arm is slidably mounted on the frame, and the other end of the sliding arm is fixedly connected to the chassis. The lead screw seat is fixed on the frame, and the end of the lifting lead screw is rotatably mounted on the lead screw seat. The lifting lead screw passes through the sliding arm and is threadedly connected to the sliding arm through a lead screw nut. The lifting motor is fixed on the frame, and the output shaft of the lifting motor is coaxially fixedly connected to the lifting lead screw through a coupling.

[0012] Two sets of auxiliary elastic clamping mechanisms are also provided near the inner side of the frame in the upper clamping module and the lower clamping module. The auxiliary elastic clamping mechanism includes two elastic clamping plates arranged in a mirror symmetrical manner. The driving method of the two elastic clamping plates is the same as that of the upper clamping module and the lower clamping module.

[0013] The beneficial effect of the present invention is that it is provided with an upper clamping module and a lower clamping module. The gripping clamping mechanism of the upper clamping module and the lower clamping module clamps both ends of the textile sample, which prevents the textile sample from shifting during the clamping process and ensures that the tightness of both sides of the textile sample is consistent. Attached Figure Description

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the optimal embodiment of the automatic sample loading system for textile tensile testing according to the present invention; Figure 2 This is a schematic diagram of the gripping clamp mechanism of an automatic sample loading system for tensile testing of textiles according to the present invention; Figure 3 This is a schematic diagram of the structure of an elastic auxiliary clamp in an automatic sample loading system for textile tensile testing according to the present invention; Figure 4 This is a schematic diagram of the needle plate of an automatic sample loading system for tensile testing of textiles according to the present invention; Figure 5 This is a schematic diagram of the sample stacking plate of an automatic sample loading system for textile tensile testing according to the present invention.

[0016] Reference numerals: 1. Hopper device; 2. Base; 3. Electric steering seat; 4. Frame; 5. Upper clamping module; 6. Lower clamping module; 7. Gripping clamping mechanism; 8. Elastic auxiliary clamping piece; 9. Textile sample; 10. Chassis; 11. Rotating gear; 12. Worm gear; 13. Clamping drive motor; 14. Main shaft; 15. Secondary shaft; 16. Connecting piece; 17. Needle plate; 18. Needle assembly; 19. Clamping plate; 20. Adjusting slide; 21. Screw seat; 22. Adjusting screw; 23. Locking screw; 24. Outer shell; 25. Sample stacking plate; 26. Support spring; 27. Spring chamber; 28. Elastic baffle; 29. ​​Lead screw slide module; 30. Sliding arm; 31. Lead screw seat; 32. Lifting motor; 33. Lifting lead screw; 34. Elastic clamping plate. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 5 As shown, this invention provides an embodiment of an automatic sample loading system for textile tensile testing, including a sample gripping device and a hopper device 1 for carrying textile samples 9 to be gripped. The sample gripping device can grip textile samples 9 from the hopper device 1. The sample gripping device includes a base 2, an electric steering seat 3, a frame 4, an upper clamping module 5, and a lower clamping module 6. The electric steering seat 3 is connected to the middle of the frame 4. The electric steering seat 3 is fixed on the base 2 and can drive the frame 4 to rotate within the range of 0° to 90°. The upper clamping module 5 and the lower clamping module 6 are installed at both ends of the frame 4. Both the upper clamping module 5 and the lower clamping module 6 include a gripping clamping mechanism 7 and an elastic auxiliary clamping piece 8 that cooperates with the gripping clamping mechanism 7. The gripping clamping mechanism 7 and the elastic auxiliary clamping piece 8 are used to grip the textile sample 9.

[0020] A lead screw slide module 29 is also provided below the base 2. The base 2 is fixed on the slide of the lead screw slide module 29. The lead screw slide module 29 can drive the frame 4 to move as a whole and adjust the position of the frame 4.

[0021] The upper clamping module 5 and the lower clamping module 6 also include a chassis 10, which is fixed to the end of the frame 4. Two symmetrically arranged rotating gears 11 are rotatably mounted on the chassis 10, and a worm gear 12 is arranged between the two rotating gears 11. The end of the worm gear 12 is rotatably mounted on the chassis 10 through a bearing seat. The two rotating gears 11 mesh with the worm gear 12 from both sides. A clamping drive motor 13 is also fixed on the chassis 10. The output shaft of the clamping drive motor 13 is coaxially fixed to the worm gear 12 through a coupling. A main shaft 14 and a secondary shaft 15 are fixed at the axis positions of the two rotating gears 11, respectively. A connecting piece 16 is fixed on both the main shaft 14 and the secondary shaft 15. The gripping clamping mechanism 7 is detachably mounted on the main shaft 14 through the connecting piece 16. An elastic auxiliary clamping piece 8 is fixed on the secondary shaft 15 through another connecting piece 16.

[0022] The gripping mechanism 7 includes a needle plate 17, needle assembly 18, clamping plate 19, adjusting slide 20, screw seat 21, and adjusting screw 22. The needle plate 17 is detachably connected to the connecting piece 16 to allow for the replacement of the needle plate 17 with different needle assembly 18 arrangements, meeting the clamping requirements of various textile samples 9. The needle assembly 18 includes multiple needles fixed on the needle plate 17. The two sides of the adjusting slide 20 are slidably connected to the two sides of the needle plate 17. The clamping plate 19 is fixed on the adjusting slide 20 and has through holes for avoiding the needle assembly 18. The screw seat 21 is rotatably installed in the middle of the needle plate 17 and fixedly connected to one end of the adjusting screw 22. The adjusting screw 22 passes through the middle of the adjusting slide 20 and is threadedly connected to the adjusting slide 20. A locking screw 23 is also threadedly connected to the side of the adjusting slide 20, and the end of the locking screw 23 abuts against the needle plate 17.

[0023] By rotating the adjusting screw 22, the adjusting slide 20 can be moved, thereby adjusting the distance between the clamping plate 19 and the needle plate 17. When the clamping plate 19 is close to the needle plate 17, the needle assembly 18 protrudes more from the clamping plate 19. When the clamping plate 19 is far from the needle plate 17, the needle assembly 18 protrudes less from the clamping plate 19. This achieves the adjustment of the protruding length of the needle assembly 18. After the adjustment is completed, the adjusting slide 20 is locked by the locking screw 23 to prevent the clamping plate 19 from shifting. When clamping the textile sample 9, the needle assembly 18 first pierces the textile sample 9, and then the clamping plate 19, together with the elastic auxiliary clamping piece 8, presses the textile sample 9 to improve the clamping stability.

[0024] The needle group 18 is centrally located and narrowly positioned, and the vertical projection of the needle group 18 toward the needle plate 17 falls entirely within the range of the needle plate 17. The multiple needles of the needle group 18 are not vertically aligned in a row to avoid the linear weakening zone formed by vertical alignment.

[0025] To accommodate the clamping needs of different textile samples 9, the needle array 18 is divided into two types of arrays to suit the clamping requirements of textiles with different weights. Both arrays are centrally located and narrowly arranged. The outer contour of the needle array 18 is limited to the clamping range of the tensile testing machine, without intruding into the effective test section between the upper and lower clamps. The needle points are not vertically aligned to avoid the linear weakening zone formed by vertical alignment. The array is generally in the shape of a narrow line, with the longitudinal arrangement height controlled at 5-10 mm and the total transverse width at 40-45 mm. The outermost needle point is reserved at least 2.5 mm from the side of the sample to achieve stable clamping of thin fabrics with minimal needle penetration area and reduce fiber damage.

[0026] The array suitable for samples with a strength ≤200 g / m² is a vertically unequal-spaced linear narrow array. The array consists of at least two rows of transversely arranged vertical needles, linearly arranged along the transverse direction with unequally spaced needle points. The spacing between these points ranges from 4 to 8 mm. The central region, occupying 50% to 70% of the total array width, has a needle spacing of 6 to 8 mm, while the edge regions have a spacing of 4 to 5 mm. The needle point spacing is slightly smaller in the central region and slightly larger on the sides to achieve balanced clamping force. The needle diameter is 0.5 mm to 0.8 mm, and the needle penetration depth is set to 50% to 90% of the sample thickness.

[0027] The array for samples with a strength greater than 200 g / m² is a staggered, partially interlaced three-dimensional array. The array consists of at least two rows of transversely arranged needles, including several vertical needles and several inclined needles. The needles are arranged in a completely staggered manner, with the gap between the front row units directly aligned with the needle insertion position of the rear row units. This ensures that any needle point in the front row and the needle point in the rear row are completely staggered on the projection along the length of the sample, without forming any continuous longitudinal straight line arrangement.

[0028] In each row of needles, vertical and inclined needles are arranged alternately in the transverse direction. The inclined needles are set at an angle of 15°≤α≤45° with the normal direction of the sample surface. The inclined needles are divided into forward inclined groups and reverse inclined groups. The inclination direction of the two groups of needles is symmetrical about the sample normal, forming an "eight"-shaped opposing cross structure, and they are arranged alternately in the transverse direction within the same row. Vertical and inclined needles are locally staggered in a limited narrow area, forming a spatial three-dimensional interlocking structure. The ratio of vertical to inclined units is 1:1 to 2:1. The needle diameter is 0.8mm to 1.2mm, and the exposed length of the needle body is set to 70% to 90% of the sample thickness. For samples >500g / m², the needle diameter is 1.0mm to 1.5mm, and the exposed length of the needle is set to 90% to 110% of the sample thickness. The ratio of vertical to inclined needles is 1:1 to 1.2:1.

[0029] The hopper device 1 includes a housing 24, a sample stacking plate 25, a support spring 26, and a spring chamber 27. The width of the housing 24 is greater than the width of the needle plate 17. The top surface and two adjacent sides of the housing 24 are open. The inner side of the housing 24 forms a stacking cavity with a three-sided enclosure structure. The sample stacking plate 25 is slidably installed in the stacking cavity. The spring chamber 27 is fixed to the bottom of the housing 24. The support spring 26 is fixed inside the spring chamber 27 and abuts against the bottom of the sample stacking plate 25. The sample stacking plate 25 is used to place textile samples 9. An elastic baffle 28 is also fixed to the upper edge of the housing 24. The elastic baffle 28 is bent toward the inner side of the housing 24 and is used to compress the textile samples 9 located on the sample stacking plate 25.

[0030] When the top textile sample 9 is pulled out by the needle assembly 18 and the clamping plate 19, it will detach from the elastic baffle 28. At this time, the elastic baffle 28 will fall naturally and the support spring 26 will push the sample stacking plate 25 to move upward, so that the elastic baffle 28 presses the surface of the next textile sample 9. Therefore, the next textile sample 9 cannot be pulled out by the top sample through friction, thus ensuring that the gripping clamping mechanism 7 can only grip one textile sample 9 at a time.

[0031] The lower clamping module 6 also includes a sliding arm 30, a lead screw seat 31, a lifting motor 32, and a lifting lead screw 33. One end of the sliding arm 30 is slidably mounted on the frame 4, and the other end of the sliding arm 30 is fixedly connected to the chassis 10. The lead screw seat 31 is fixed on the frame 4, and the end of the lifting lead screw 33 is rotatably mounted on the lead screw seat 31. The lifting lead screw 33 passes through the sliding arm 30 and is threadedly connected to the sliding arm 30 through a lead screw nut. The lifting motor 32 is fixed on the frame 4, and the output shaft of the lifting motor 32 is coaxially fixedly connected to the lifting lead screw 33 through a coupling. The lifting motor 32 drives the lifting lead screw 33 to rotate, and the rotation of the lifting lead screw 33 drives the sliding arm 30 to move up and down, thereby adjusting the position of the sliding arm 30.

[0032] Two sets of auxiliary elastic clamping mechanisms are also provided on the inner side of the upper clamping module 5 and the lower clamping module 6 near the frame 4. The auxiliary elastic clamping mechanisms include two mirror-symmetrically arranged elastic clamping plates 34. The driving method of the two elastic clamping plates 34 is the same as that of the upper clamping module 5 and the lower clamping module 6.

[0033] The main steps for sample testing are as follows: Step 1, the sliding arm 30 of the lower clamping module 6 is adjusted to the standby position by the lifting motor 32, and then the frame 4 is rotated 90° by the electric steering seat 3, so that the gripping clamping mechanism 7 of the upper clamping module 5 reaches the hopper device 1. The needle group 18 on the needle plate 17 extends out of the clamping plate 19 and pierces the end of the textile sample 9. After the gripping is completed, the electric steering seat 3 drives the frame 4 to rotate back to reset. At this time, the textile sample 9 is in a suspended state. The other end of the textile sample 9 is clamped by moving the lower clamping module 6. After the clamping is completed, the position of the lower clamping module 6 is adjusted to apply a certain tension to the textile sample 9 so that the textile sample 9 remains straight. Finally, the elastic clamping plate 34 of the auxiliary elastic clamping mechanism clamps the textile sample 9 again, pressing the textile sample 9 to form a double clamping, which improves the overall clamping reliability.

[0034] Step two: The frame 4 is moved to the tensile testing area by the screw slide module 29. The textile sample 9 is fed into the clamping port of the clamp from the side gap of the clamp of the tensile testing machine. At this time, the gripping clamping mechanism 7 of the upper clamping module 5 is located above the upper clamp, and the gripping clamping mechanism 7 of the lower clamping module 6 is located below the lower clamp. The tensile testing machine clamps the textile sample 9 by closing the clamps on both sides, and the clamping operation is completed. The tensile testing machine and the test fixture are not shown in the figure. That is, the clamping areas of the gripping clamping mechanism 7 of the upper clamping module 5, the gripping clamping mechanism 7 of the lower clamping module 6, and the elastic clamping plates 34 of the two auxiliary elastic clamping mechanisms are all located outside the clamping area of ​​the tensile testing machine fixture, so that the textile sample 9 can be smoothly fed into the clamp of the tensile testing machine for clamping.

[0035] If there is an obstacle on the upper side of the tensile testing machine clamp that prevents the gripping clamp mechanism 7 from moving into place, release the gripping clamp mechanism 7 and clamp the textile sample 9 only through the auxiliary elastic clamp mechanism located on the lower side of the clamp; if there is an obstacle on the lower side of the tensile testing machine clamp that prevents the gripping clamp mechanism 7 from moving into place, release the auxiliary elastic clamp mechanism located on the lower side of the clamp and clamp the textile sample 9 only through the gripping clamp mechanism 7 located on the upper side of the clamp. Through the above operations, it can be ensured that the textile sample 9 can be smoothly fed into the clamp of the tensile testing machine.

[0036] Step 3: Start the tensile testing machine to perform a tensile test. When the tensile testing machine is completed, the textile sample 9 breaks. The clamps of the tensile testing machine open, and then the screw slide module 29 drives the frame 4 away from the tensile testing area. After moving the broken sample to the waste port, the gripping clips of the upper clamping module 5 and the lower clamping module 6 are opened to allow the broken sample to fall into the waste port for recycling, and then the next test cycle can be carried out.

[0037] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. An automated sample loading system for tensile testing of textiles, characterized in that: The device includes a sample gripping device and a hopper device (1) for holding a textile sample (9) to be gripped. The sample gripping device is capable of gripping the textile sample (9) from the hopper device (1). The sample gripping device includes a base (2), an electric steering seat (3), a frame (4), an upper clamping module (5), and a lower clamping module (6). The electric steering seat (3) is connected to the middle of the frame (4). The electric steering seat (3) is fixed on the base (2) and can drive the frame (4) to rotate within the range of 0° to 90°. The upper clamping module (5) and the lower clamping module (6) are installed at both ends of the frame (4). The upper clamping module (5) and the lower clamping module (6) each include a gripping clamping mechanism (7) and an elastic auxiliary clamping piece (8) that cooperates with the gripping clamping mechanism (7). The gripping clamping mechanism (7) and the elastic auxiliary clamping piece (8) are used to grip the textile sample (9).

2. The automatic sample loading system for textile tensile testing as described in claim 1, characterized in that: The upper clamping module (5) and the lower clamping module (6) also include a chassis (10). The chassis (10) is fixed to the end of the frame (4). Two symmetrically arranged rotating gears (11) are rotatably mounted on the chassis (10). A worm gear (12) is arranged between the two rotating gears (11). The end of the worm gear (12) is rotatably mounted on the chassis (10) through a bearing seat. The two rotating gears (11) mesh with the worm gear (12) from both sides of the worm gear (12). A clamping drive is also fixed on the chassis (10). The output shaft of the clamping drive motor (13) is coaxially fixedly connected to the worm gear (12) via a coupling. The two rotating gears (11) are respectively fixed with a main shaft (14) and a secondary shaft (15) at their axial center positions. Both the main shaft (14) and the secondary shaft (15) are fixed with connecting pieces (16). The gripping clamping mechanism (7) is detachably mounted on the main shaft (14) via the connecting piece (16). The elastic auxiliary clamping piece (8) is fixed on the secondary shaft (15) via another connecting piece (16).

3. The automatic sample loading system for textile tensile testing as described in claim 2, characterized in that: The gripping clamping mechanism (7) includes a needle plate (17), a needle assembly (18), a clamping plate (19), an adjusting slide (20), a screw seat (21), and an adjusting screw (22). The needle plate (17) is detachably connected to the connecting piece (16). The needle assembly (18) includes multiple needles fixed on the needle plate (17). The two sides of the adjusting slide (20) are slidably connected to the two sides of the needle plate (17). The clamping plate (19) is fixed on the adjusting slide (20). The clamping plate (19) has a through hole for avoiding the needle assembly (18). The screw seat (21) is rotatably installed in the middle of the needle plate (17) and fixedly connected to one end of the adjusting screw (22). The adjusting screw (22) passes through the middle of the adjusting slide (20) and is threadedly connected to the adjusting slide (20). The side of the adjusting slide (20) is also threadedly connected to a locking screw (23). The end of the locking screw (23) abuts against the needle plate (17).

4. The automatic sample loading system for textile tensile testing as described in claim 3, characterized in that: The needle group (18) is centrally located and narrowly arranged, and the vertical projection of the needle group (18) toward the needle plate (17) falls entirely within the range of the needle plate (17). The multiple needles of the needle group (18) are not vertically aligned to avoid the linear weakening zone formed by vertical alignment.

5. The automatic sample loading system for textile tensile testing as described in claim 3, characterized in that: The hopper device (1) includes a housing (24), a sample stacking plate (25), a support spring (26), and a spring chamber (27). The width of the housing (24) is greater than the width of the needle plate (17). The top surface and two adjacent sides of the housing (24) are open. The inner side of the housing (24) forms a stacking cavity with a three-sided enclosure structure. The sample stacking plate (25) is slidably installed in the stacking cavity. The spring chamber (27) is fixed to the bottom of the housing (24). The support spring (26) is fixed in the spring chamber (27) and abuts against the bottom of the sample stacking plate (25). The sample stacking plate (25) is used to place textile samples (9).

6. The automatic sample loading system for textile tensile testing as described in claim 5, characterized in that: An elastic baffle (28) is also fixed to the upper edge of the outer shell (24). The elastic baffle (28) is bent toward the inside of the outer shell (24) and is used to squeeze the textile sample (9) located on the sample stack plate (25).

7. The automatic sample loading system for textile tensile testing as described in claim 1, characterized in that: Below the base (2) is a lead screw slide module (29), and the base (2) is fixed on the slide of the lead screw slide module (29).

8. The automatic sample loading system for textile tensile testing as described in claim 2, characterized in that: The lower clamping module (6) also includes a sliding arm (30), a lead screw seat (31), a lifting motor (32), and a lifting lead screw (33). One end of the sliding arm (30) is slidably mounted on the frame (4), and the other end of the sliding arm (30) is fixedly connected to the chassis (10). The lead screw seat (31) is fixed on the frame (4), and the end of the lifting lead screw (33) is rotatably mounted on the lead screw seat (31). The lifting lead screw (33) passes through the sliding arm (30) and is threadedly connected to the sliding arm (30) through a lead screw nut. The lifting motor (32) is fixed on the frame (4), and the output shaft of the lifting motor (32) is coaxially fixedly connected to the lifting lead screw (33) through a coupling.

9. The automatic sample loading system for tensile testing of textiles as described in claim 2, characterized in that: Two sets of auxiliary elastic clamping mechanisms are also provided on the inner side of the frame (4) near the upper clamping module (5) and the lower clamping module (6). The auxiliary elastic clamping mechanism includes two elastic clamping plates (34) arranged in a mirror symmetrical manner. The driving method of the two elastic clamping plates (34) is the same as that of the upper clamping module (5) and the lower clamping module (6).

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