A textile yarn tensile properties testing device

Abstract

The present invention provides a textile yarn tensile performance testing device, which belongs to the field of textile yarn performance testing, including a testing platform, a tensile testing machine is arranged on the upper end of the testing platform, a fixing unit for fixing the yarn is arranged above the testing platform, and an adjustment unit for adjusting the tensile state of the yarn is arranged on the upper end of the testing platform. In the present invention, when the upper clamping assembly is used as a tensile stress point, the yarn can be adjusted to different inclination angles for tensile testing through the adjustment unit, simulating the actual stress condition of the yarn in actual use, and increasing the diversity of detection. At the same time, when the clamping assemblies on the upper and lower sides are only used as clamping points, the adjustment assembly and the driving assembly can be used to detect different tensile points on both sides of the yarn, increase the tensile detection points, further simulate the situation that the yarn is subjected to tensile force at different positions in actual application, improve the comprehensiveness of the detection, and obtain more real and effective detection results.

Description

Technical Field

[0001] The invention relates to the field of performance testing of textile yarns, in particular to a device for testing the tensile performance of textile yarns. Background Art

[0002] Textile yarn is a continuous linear material made of fibers through a spinning process. It is the basic unit of various fabrics. In order to ensure that textile yarns meet uniform usage standards, they need to be tested for tensile properties. Tensile properties are a key indicator for measuring the strength and ductility of yarns under external forces. Generally, yarn samples are tested using a tensile testing machine to measure the maximum tensile force that the yarn can withstand before breaking, reflecting the toughness and elasticity of the yarn.

[0003] However, there are currently the following problems in the process of tensile performance testing of textile yarns: (1) The yarns are usually stretched horizontally or vertically, but the yarns in actual use may be in different tilt states and are subjected to multi-directional and multi-angle tensile forces. The test results obtained in a single direction are difficult to truly and effectively reflect the tensile performance of the textile yarns.

[0004] (2) The test results obtained by only stretching the two ends of the yarn are too simple. The lack of stretching test points will lead to certain errors or deviations in the test results. The accuracy and authenticity of the test results need to be improved.

[0005] Therefore, in order to solve the problems existing in the process of tensile property testing of textile yarns, the present invention provides a textile yarn tensile property testing device. Summary of the invention

[0006] The present invention provides a tensile property testing device for textile yarns, comprising a testing platform, a tensile testing machine is arranged at the upper end of the testing platform, a fixing unit for fixing the yarn is arranged above the testing platform, and an adjusting unit for adjusting the tensile state of the yarn is arranged at the upper end of the testing platform; an inverted shaped frame is installed at the upper end of the testing platform, the fixing unit and the adjusting unit are both located between left and right vertical sections of the inverted shaped frame, vertical guide rails are installed on the sides where the left and right vertical sections of the inverted shaped frame are close to each other, a testing end of the tensile testing machine is slidably installed between the vertical guide rails through an electric slider, the fixing unit comprises two groups of clamping assemblies distributed up and down, and the clamping assembly located at the upper part is arranged at the lower part of the testing end, and the clamping assembly comprises a fixing plate; The adjustment unit includes a semi-annular plate installed on the upper end of the detection platform, the semi-annular plate is provided with an arc-shaped through groove, the front end of the lower fixed plate is provided with an arc-shaped plate slidably connected to the arc-shaped through groove, and the rear end of the semi-annular plate is rotatably provided with a half-toothed ring fixedly connected to the lower end of the corresponding fixed plate; the adjustment unit also includes an adjustment component for adjusting the yarn stretching point, the adjustment component includes a support frame, the left and right ends of the lower fixed plate are provided with support frames, the upper end of the support frame is provided with a vertical plate slidably installed left and right, and the sides of the left and right vertical plates that are close to each other are provided with multiple groups of pressure rods distributed up and down, and a pressure block is provided at the end of the pressure rod away from the vertical plate, and a driving component for driving the vertical plate to slide left and right is provided between the upper ends of the rear sides of the left and right support frames.

[0007] In one possible implementation, the clamping assembly also includes a mounting plate, a mounting plate is installed on the rear end of the side where the upper and lower fixed plates are close to each other, a winding column is installed on the front end of the mounting plate, arc-shaped clamping blocks that are slidably connected to the fixing plate are arranged on the left and right sides of the winding column, and mounting grooves are opened on the side where the upper and lower fixed plates are close to each other, an L-shaped push plate that is slidably connected to the mounting groove is installed on the end of the arc-shaped clamping block close to the fixed plate, a bidirectional electric push rod that is fixedly connected to the groove wall of the mounting groove is connected between the vertical sections of the left and right L-shaped push plates, a limiting ring is installed on the side where the left and right arc-shaped clamping blocks in each clamping assembly are close to each other, a rotating assembly for controlling the rotation of the semi-toothed ring is arranged at the upper end of the detection platform, the rotating assembly includes a rotating gear, and a rotating gear rotatably installed at the lower side of the semi-toothed ring is meshed, and the rear end of the rotating gear is connected to an output shaft of a motor installed at the upper end of the detection platform.

[0008] In one possible implementation, the pressure rods are all threaded telescopic rods, the pressure blocks are rotatably connected to the telescopic ends of the corresponding pressure rods, and guide plates that are in sliding contact with the pressure blocks are installed on the rear ends of the sides close to the left and right vertical plates. The guide plates are provided with open slots evenly arranged up and down, and the open slots on the left and right guide plates are cross-distributed up and down.

[0009] In one possible implementation, the end of the pressure rod away from the pressure block is provided with a square plate that is slidably connected to the corresponding vertical plate, and a rectangular through slot is opened on the vertical plate. The end of the square plate away from the pressure rod is installed with a bolt that slides up and down and passes through the rectangular through slot. After the bolt passes through the rectangular through slot, a nut is threadedly installed.

[0010] In one possible implementation, a front-to-back symmetrical rectangular plate is installed at one end of the square plate close to the pressure rod, a rotating shaft fixedly connected to the pressure rod is rotatably installed between the front and rear rectangular plates, and a rotating column is installed after the rotating shaft passes through the front rectangular plate.

[0011] In one possible implementation, the outer ring surface of the rotating column is provided with circumferentially evenly arranged sockets, and a positioning plate located above the rotating column is installed at the front end of the square plate located on the front side, and the positioning plate is plugged into the corresponding sockets through a pin.

[0012] In one possible implementation, a slide plate is installed at the lower end of the fixed section of the pressure rod, and a telescopic column located below the pressure rod is hinged at the lower end of the square plate away from the vertical plate, and a pin shaft is rotatably installed at the telescopic end of the telescopic column and is slidably connected to the slide plate left and right.

[0013] In one possible implementation, the drive assembly includes vertical plates installed on the upper ends of the left and right support frames that are separated from each other, a horizontal plate installed between the left and right vertical plates, a bidirectional lead screw rotatably installed between the upper ends of the left and right vertical plates, and two movable blocks arranged left and right and slidably connected to the horizontal plate are threadedly mounted on the bidirectional lead screw. The bidirectional lead screw rotates through the vertical plate on the right side and is connected to the output shaft of motor 2. Motor 2 is installed at the right end of the right vertical plate through a support.

[0014] In one possible implementation, a control board is installed in the middle of the rear end of the vertical board, and a square through hole symmetrically arranged at the rear end of the moving block is provided. A connecting frame is provided at the rear end of the control board for sliding forward and backward and is simultaneously plugged into and matched with the two square through holes on the corresponding moving block.

[0015] In one possible implementation, support rods are installed at the rear end of the mounting plate at the bottom and the rear ends of the vertical plates on the left and right sides. An arc frame located on the rear side of the semi-circular plate is installed at the upper end of the detection platform. The arc frame is provided with an arc guide groove that is slidably connected to the support rod, and the arc guide groove is concentric with the arc through groove.

[0016] Beneficial effects of the present invention: 1. In the case of using the upper clamping assembly as the tensile stress point, the present invention can adjust the yarn to different inclination angles for tensile testing through the adjustment unit, simulating the actual stress conditions of the yarn in actual use and increasing the diversity of testing. At the same time, when the clamping assemblies on the upper and lower sides are only used as clamping points, the adjustment assembly and the drive assembly can be used to detect different tensile points on both sides of the yarn, increase the tensile testing points, further simulate the situation of the yarn being subjected to tensile force at different positions in actual applications, reduce the deviation or error that may be caused by single-point testing, improve the comprehensiveness of the test, and obtain more real and effective test results, so that the performance of the yarn can be more accurately evaluated.

[0017] 2. The present invention can also utilize the adjustment component to apply pressure to the yarn in different directions and angles, further simulating the situation in which the yarn may be subjected to tension in different directions in actual use, thereby ensuring the authenticity of the test results. By performing tensile tests on the yarn under various conditions, more abundant test results can be obtained, thereby improving the accuracy and comparability of the test results.

[0018] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical scheme, and the beneficial effects brought about by the technical features of these technical schemes, other technical problems that can be solved by a textile yarn tensile properties testing device provided by an embodiment of the present application, other technical features included in the technical scheme, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the fixing unit and the adjusting unit of the present invention.

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the adjustment unit and the driving assembly of the present invention.

[0023] Figure 4 It is a three-dimensional structural schematic diagram of the driving assembly and the rotating assembly of the present invention.

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the clamping assembly and the adjusting assembly of the present invention.

[0025] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of area A in the middle.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention.

[0027] In the figure: 1. test table; 11. vertical guide rail; 2. fixing unit; 21. fixing plate; 211. support rod; 212. arc frame; 213. arc guide groove; 23. winding column; 24. arc clamping block; 25. mounting groove; 26. L-shaped push plate; 27. two-way electric push rod; 28. limit ring; 3. adjustment unit; 31. semi-circular plate; 311. support frame; 312. vertical plate; 313. pressure rod; 314. pressure block; 315. guide plate; 316. opening slot ; 318, square plate; 319, rectangular through slot; 32, arc-shaped through slot; 321, rectangular plate; 322, rotating column; 323, jack; 324, positioning plate; 325, slide plate; 326, telescopic column; 33, arc-shaped plate; 331, vertical plate; 332, horizontal plate; 333, bidirectional lead screw; 334, moving block; 335, motor two; 336, control board; 337, square through hole; 338, connecting frame; 34, half gear ring; 35, rotating gear; 36, motor one. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0029] See also Figure 1 A textile yarn tensile performance testing device comprises a testing platform 1, a tensile testing machine is arranged on the upper end of the testing platform 1, a fixing unit 2 for fixing the yarn is arranged above the testing platform 1, and an adjusting unit 3 for adjusting the tensile state of the yarn is arranged on the upper end of the testing platform 1; the tensile testing machine is a prior art.

[0030] See also Figure 1 A profile frame is installed at the upper end of the detection table 1, and the fixing unit 2 and the adjustment unit 3 are both located between the left and right vertical sections of the profile frame. Vertical guide rails 11 are installed on the sides where the left and right vertical sections of the profile frame are close to each other, and the detection end of the tensile testing machine is slidably installed between the vertical guide rails 11 through an electric slider.

[0031] See also Figure 1 , Figure 2 , Figure 5 and Figure 6 The fixing unit 2 includes two groups of clamping components distributed up and down, and the clamping component located at the top is arranged at the lower part of the detection end. The clamping component includes a fixing plate 21. The rear end of the side where the upper and lower fixing plates 21 are close to each other is installed with a mounting plate, and the front end of the mounting plate is installed with a winding column 23. The left and right sides of the winding column 23 are provided with arc-shaped clamping blocks 24 that are slidably connected to the fixing plate 21 left and right. The side where the left and right arc-shaped clamping blocks 24 are close to each other is installed with a friction pad. The side where the upper and lower fixing plates 21 are close to each other is provided with a mounting groove 25. The end of the arc-shaped clamping block 24 close to the fixing plate 21 is installed with an L-shaped push plate 26 that is slidably connected to the mounting groove 25 left and right. A bidirectional electric push rod 27 that is fixedly connected to the groove wall of the mounting groove 25 is connected between the vertical sections of the left and right L-shaped push plates 26. A limiting ring 28 is installed on the side where the left and right arc-shaped clamping blocks 24 in each clamping assembly are close to each other.

[0032] During operation: first, a section of yarn of appropriate length needs to be cut from the textile yarn sample to be tested as a sample according to the test requirements, and then the distance between the upper and lower clamping assemblies can be adjusted according to the length of the yarn. During this process, the detection end of the tensile testing machine and the upper clamping assembly can be driven by an electric slider to move to a suitable height along the vertical guide rail 11, so that the distance between the upper and lower clamping assemblies is less than the length of the yarn, ensuring that the clamping assembly can smoothly clamp the yarn end.

[0033] The lower end of the yarn is first clamped and fixed by the clamping assembly below. During this process, the lower end of the yarn can be wound around the winding column 23 in a clockwise manner. In addition, the yarn can be wound multiple times according to the length of the yarn (only part of the yarn is shown in the figure). Then, the L-shaped push plates 26 on the left and right sides can be driven by the two-way electric push rod 27 to move synchronously toward each other along the mounting groove 25, and the arc-shaped clamping block 24 moves synchronously with the corresponding L-shaped push plate 26 in the direction of the winding column 23 until the arc-shaped clamping blocks 24 on the left and right sides clamp the yarn wound on the winding column 23 at the same time. The arc-shaped clamping block 24 can squeeze the yarn through the friction pad to increase the friction between the arc-shaped clamping block 24 and the yarn, ensuring that the yarn is stably and effectively clamped. At the same time, the limit rings 28 on the left and right sides move synchronously toward each other with the corresponding arc-shaped clamping blocks 24 until they conflict with each other. The annular space formed by the left and right limit rings 28 can further limit the yarn in the center, ensuring that the upper and lower ends of the yarn are in the same straight line direction in a centered state. After the lower end of the yarn is fixed, the upper end of the yarn is clamped and fixed by the upper clamping assembly in the same way.

[0034] Subsequently, the height and speed of the electric slider can be pre-set by the tensile testing machine to control the tensile force applied to the yarn. Then the electric slider drives the detection end of the tensile testing machine, the upper clamping assembly and the upper end of the yarn to move upward along the vertical guide rail 11. Under the action of the upper and lower clamping assemblies, the yarn is gradually in a straightened state, and as the upper clamping assembly continues to move upward, the yarn is subjected to two upper and lower tensile forces in the vertical direction until the yarn breaks, so as to obtain the tensile test results of the yarn in the vertical direction, and the test data is displayed on the tensile testing machine. In order to obtain more reliable test results and ensure the accuracy and comparability of the test results, multiple yarn samples can be tested repeatedly, and the test results obtained can be analyzed later to determine the quality of the yarn tensile performance.

[0035] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The adjustment unit 3 includes a semi-annular plate 31 installed on the upper end of the detection platform 1. The front end of the semi-annular plate 31 is engraved with scale lines evenly arranged in the circumferential direction. An arc-shaped through groove 32 is opened on the semi-annular plate 31. The front end of the fixed plate 21 located below is installed with an arc plate 33 slidably connected to the arc-shaped through groove 32. The rear end of the semi-annular plate 31 is rotatably installed with a semi-toothed ring 34 fixedly connected to the lower end of the corresponding fixed plate 21. The semi-toothed ring 34 is cocentric with the arc-shaped through groove 32. A rotating assembly for controlling the rotation of the semi-toothed ring 34 is provided on the upper end of the detection platform 1. The rotating assembly includes a rotating gear 35. The lower side of the semi-toothed ring 34 is meshed with a rotating gear 35 rotatably installed on the upper end of the detection platform 1. The rear end of the rotating gear 35 is connected to the output shaft of a motor 36 installed on the upper end of the detection platform 1.

[0036] During operation: after the yarn is in a straightened state, the upward movement of the upper clamping assembly can be paused, and then the rotating gear 35 can be driven to rotate by the motor 36. The rotating gear 35 drives the semi-toothed ring 34 to rotate synchronously along the semi-annular plate 31, and the arc plate 33 rotates synchronously along the arc groove 32 with the semi-toothed ring 34. The clamping assembly located below clamps the lower end of the yarn and rotates synchronously along the semi-annular plate 31 through the fixed plate 21. Since the upper clamping assembly remains stationary and the lower clamping assembly rotates to an inclined state, the yarn is in an inclined state at this time. At the same time, the clamping assembly located below and the lower end of the yarn can be rotated to a suitable angle with the help of the scale line engraved on the front end of the semi-annular plate 31, and the inclination angle of the yarn can be recorded, and the yarn can be tilted to the left or right. Then, the yarn can be tensile tested in the inclination direction in the same way as above. In addition, multiple identical yarn samples can be tensile tested with the same inclination angle or different inclination angles to simulate the actual state of the yarn in actual use to obtain more comprehensive test results.

[0037] See also Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 The adjustment unit 3 also includes an adjustment component for adjusting the yarn stretching point, the adjustment component includes a support frame 311, the left and right ends of the lower fixed plate 21 are installed with a support frame 311, the upper end of the support frame 311 is slidably installed with a vertical plate 312, and the side close to the left and right vertical plates 312 is provided with multiple groups of pressure rods 313 distributed up and down, the pressure rod 313 is a threaded telescopic rod, and the end of the pressure rod 313 away from the vertical plate 312 is provided with a stop block 314, the stop block 314 is rotatably connected to the telescopic end of the corresponding pressure rod 313, and a slot is provided in the middle of the end of the stop block 314 away from the pressure rod 313. A guide plate 315 that is in sliding contact with the stop block 314 is installed on the rear end of the side close to the right vertical plate 312, and open slots 316 that are evenly arranged up and down are opened on the guide plate 315, and the open slots 316 on the left and right guide plates 315 are cross-distributed up and down, and a square plate 318 that is slidably connected to the corresponding vertical plate 312 is provided at one end of the pressure rod 313 away from the stop block 314, and a rectangular through groove 319 is opened on the vertical plate 312. A bolt that slides up and down and passes through the rectangular through groove 319 is installed on the end of the square plate 318 away from the pressure rod 313, and a nut is threadedly installed after the bolt passes through the rectangular through groove 319.

[0038] See also Figure 7 The square plate 318 is equipped with a front-to-rear symmetrical rectangular plate 321 at one end close to the pressure rod 313, and a rotating shaft fixedly connected to the pressure rod 313 is rotatably installed between the front and rear rectangular plates 321. A rotating column 322 is installed after the rotating shaft passes through the front rectangular plate 321. The outer ring surface of the rotating column 322 is provided with circumferentially evenly arranged sockets 323. A positioning plate 324 located above the rotating column 322 is installed at the front end of the square plate 318 located at the front side, and the positioning plate 324 is plugged into the corresponding sockets 323 through a latch, and a slide plate 325 is installed at the lower end of the fixed section of the pressure rod 313. The square plate 318 is hinged at the lower end of the side away from the vertical plate 312 with a telescopic column 326 located below the pressure rod 313, and the telescopic end of the telescopic column 326 is rotatably installed with a pin connected to the slide plate 325 for left and right sliding.

[0039] During operation: In addition to adjusting the inclination angle of the yarn, the yarn can also be stretched and tested at different points on the left and right sides (i.e. perpendicular to the length direction of the yarn) to simulate the tensile force that the yarn bears at different positions in actual applications. After the yarn is in a stretched state (vertically stretched or tilted stretched state), rotate the telescopic section of the pressure rod 313 corresponding to the desired detection point. At this time, the resistance block 314 can slide along the guide plate 315 accordingly to make the resistance block 314 at this point close to the yarn, while the remaining pressure rods 313 are in a retracted state and the corresponding resistance blocks 314 are in a position away from the yarn, so as to avoid the resistance blocks 314 at the desired detection points being disturbed by other yarns when pressing the yarn. When it is necessary to perform multi-point and unidirectional detection on the yarn from the side, the telescopic ends of the pressure rods 313 at the desired points on the same side above and below can be rotated to uniformly adjust the resistance blocks 314 at the desired points to a position close to the yarn. When it is necessary to When the yarn side is subjected to multi-point and bidirectional detection, the required points on the left and right sides are synchronously adjusted to the position close to the yarn. In addition, both single-point and multi-point detection can be carried out from the left and right sides of the yarn respectively. At the same time, the square plate 318 and the bolts can be slid up and down along the vertical plate 312 and the rectangular through groove 319, and the pressure rod 313 and the pressure block 314 move synchronously with the corresponding square plate 318 to change the position of the pressure block 314 in the up and down directions, thereby changing the point where the subsequent pressure block 314 is pressed in the length direction of the yarn. After the pressure rod 313 and the pressure block 314 move to the appropriate position, the square plate 318 can be fixed to the vertical plate 312 by the cooperation of the nut and the bolt.

[0040] When the yarn is subjected to unidirectional stretching test from the side, only the vertical plate 312, the pressure rod 313 and the resistance block 314 on the side where the stretching force is required to be applied move in the direction of the yarn. When the yarn is subjected to bidirectional synchronous stretching test from the side, the vertical plates 312, the pressure rod 313 and the resistance block 314 on both sides need to move in the direction of the yarn, and the resistance blocks 314 on the left and right sides need to be adjusted in advance to a state of staggered distribution up and down to avoid collision between the resistance blocks 314 on both sides and failure to stretch the yarn to break. In the subsequent process of the vertical plate 312 moving left and right along the support frame 311, the guide plate 315 moves synchronously therewith, and the guide plates 315 on the left and right sides can be plugged into and matched with each other through the open slots 316 staggered up and down, which can not only further guide the movement of the vertical plate 312 and improve the stability between the left and right vertical plates 312, but also improve the overall structural stability of the adjustment unit 3.

[0041] At the same time, pressure forces in different directions can be applied to the yarn from the side to further simulate the tension that the yarn may be subjected to in different directions in actual use. In this process, the pin can be pulled out of the socket 323 and the rotating column 322 can be rotated. The rotating column 322 drives the pressure rod 313 to rotate synchronously around the rotating axis and the rotating point between the front and rear rectangular plates 321 through the rotating shaft. The pressure rod 313 drives the resistance block 314 to rotate synchronously to achieve the tilt adjustment of the resistance block 314. The direction of the resistance force applied by the resistance block 314 on the yarn changes synchronously. After the pressure rod 313 and the resistance block 314 are rotated to the appropriate position, the pressure rod 313 and the socket 323 can be used to cooperate with each other to adjust the yarn. The rotating column 322 is fixed to the lower end of the positioning plate 324 to limit the rotating column 322 circumferentially. In addition, during the rotation of the pressure rod 313, the corresponding telescopic column 326 is synchronously telescoped and rotated around the hinge point between it and the square plate 318, and the telescopic end of the telescopic column 326 can slide left and right along the slide plate 325 through the pin shaft to adapt to the rotation of the pressure rod 313. The rotation of the pressure rod 313 can be supported by the cooperation between the telescopic column 326 and the slide plate 325. A stable triangular structure is formed between the pressure rod 313, the telescopic column 326 and the square plate 318, which is conducive to the subsequent stable pressure of the yarn by the pressure rod 313 and the resistance block 314.

[0042] In the process of changing the inclination angle of the yarn, the fixed plate 21 in the lower clamping assembly can drive the corresponding vertical plate 312, the pressure rod 313 and the pressure block 314 to rotate synchronously through the support frame 311 on its left and right sides, so that the adjustment assembly and the yarn maintain a synchronous inclination state, ensuring that the yarn is always located between the pressure blocks 314 on both sides. The tensile test at different points can be used in conjunction with the tensile test at different inclination angles. Regardless of whether it is changing the inclination state of the yarn, the stretching point, or the direction of the pressure applied to the yarn, it is necessary to perform multiple comparative tensile tests on multiple yarns to ensure the authenticity of the test results. At the same time, it is necessary to record the inclination angle of the yarn, the position of the stretching point, and the angle of the pressure applied to the yarn for subsequent analysis of the test results. Tensile testing of the yarn under multiple states can obtain richer test results, which is conducive to improving the accuracy and comparability of the test results, thereby enabling a more comprehensive evaluation of the performance of the yarn.

[0043] See also Figure 2 , Figure 3 , Figure 4 and Figure 5The cam 332 is provided between the upper ends of the left and right support frames 311 and the lower ends of the left and right support frames 311. A driving assembly for driving the vertical plate 312 to slide left and right is provided between the upper ends of the rear sides of the support frames 311 on the left and right sides. The driving assembly includes a vertical plate 331 installed on the upper ends of the sides away from the left and right support frames 311, a horizontal plate 332 is installed between the left and right vertical plates 331, and a bidirectional lead screw 333 is rotatably installed between the upper ends of the left and right vertical plates 331. The threaded sleeve on the bidirectional lead screw 333 has two movable blocks 334 arranged left and right and both slidably connected to the horizontal plate 332 left and right. The bidirectional lead screw 333 rotates through the vertical plate 331 on the right side and is connected to the output shaft of the second motor 335. The second motor 335 is installed at the right end of the right vertical plate 331 through a support. A control board 336 is installed in the middle of the rear end of the vertical plate 312. The rear end of the movable block 334 is provided with a square through hole 337 symmetrical up and down. The rear end of the control board 336 is provided with a connecting frame 338 that is simultaneously plugged and matched with the two square through holes 337 on the corresponding movable block 334 for sliding forward and backward.

[0044] During operation: when it is necessary to perform a tensile test on the yarn from one side, after completing the adjustment of the positions of the corresponding pressure rod 313 and the pressure block 314, the connecting frame 338 can be inserted into the square through hole 337 of the corresponding moving block 334 from the rear end of the vertical plate 312 on the side to be moved, and finally inserted into the control board 336, so as to fix the moving block 334 to the rear end of the control board 336, while the moving block 334 and the control board 336 on the other side do not need to be connected to each other through the connecting frame 338, and the two are in a non-interference state. Then, the bidirectional lead screw 333 can be driven to rotate by the motor 2 335. While the bidirectional lead screw 333 rotates, it drives the moving blocks 334 on the left and right sides to move synchronously toward each other along the cross plate 332. At this time, the vertical plate 312 on the side to be moved can be controlled The cooperation between the control plate 336 and the connecting frame 338 is synchronously moved along the upper end of the support frame 311 with the corresponding moving block 334, and the pressure rod 313 and the pressure block 314 are synchronously moved in the direction of the yarn with the vertical plate 312, and the pressure block 314 gradually approaches and presses the yarn. The pressure block 314 cooperates with the yarn through the slot to prevent the yarn from sliding when the pressure block 314 presses the yarn and affecting the smooth progress of the detection. The pressure is continuously applied to the yarn in a naturally stretched state by the pressure block 314, and the yarn gradually breaks. In this process, the vertical plate 312, the pressure rod 313 and the pressure block 314 on the other side are all in a stationary state and away from the yarn, so as to ensure that the pressure block 314 and the pressure rod 313 on the side that needs to be moved can smoothly and effectively stretch the yarn.

[0045] When it is necessary to perform stretching tests on the yarn from both sides at the same time, the fixation between the control plate 336 on the other side and the moving block 334 can be completed through the connecting frame 338 in the same way as mentioned above. At this time, the resistance blocks 314 on both sides of the yarn can move toward each other synchronously and press the yarn. Then, the yarn can be stretched towards each other in the same way as mentioned above, and subsequently, the yarns in different states can be stretched in the same way.

[0046] See also Figure 2 , Figure 3 and Figure 4 The rear end of the mounting plate at the bottom and the rear ends of the vertical plates 331 on the left and right sides are both equipped with support rods 211. The upper end of the testing platform 1 is equipped with an arc frame 212 located on the rear side of the semi-circular plate 31. The arc frame 212 is provided with an arc guide groove 213 that is slidably connected to the support rod 211. The arc guide groove 213 is cocentric with the arc through groove 32.

[0047] During operation: When the adjustment component rotates with the clamping component below, the driving component rotates synchronously with it through the vertical plate 331. At this time, the support rod 211 at the rear end of the lower mounting plate and the rear ends of the left and right vertical plates 331 can slide synchronously along the arc guide groove 213. The cooperation between the support rod 211 and the arc guide groove 213 can be used to provide three-point support and guidance for the rotation of the adjustment component, the clamping component below and the driving component, thereby improving the relative stability among the adjustment component, the clamping component below and the driving component, and ensuring that the yarn can stably and effectively complete the tensile test.

[0048] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A textile yarn tensile property testing device, comprising a testing platform (1), wherein a tensile testing machine is arranged on the upper end of the testing platform (1), characterized in that: A fixing unit (2) for fixing the yarn is arranged above the detection platform (1), and an adjustment unit (3) for adjusting the stretching state of the yarn is arranged at the upper end of the detection platform (1); The upper end of the detection platform (1) is equipped with an inverted profile frame, the fixing unit (2) and the adjusting unit (3) are both located between the left and right vertical sections of the inverted profile frame, the sides of the left and right vertical sections of the inverted profile frame close to each other are both equipped with vertical guide rails (11), the detection end of the tensile testing machine is slidably installed between the vertical guide rails (11) through an electric slider, the fixing unit (2) includes two groups of clamping assemblies distributed up and down, and the clamping assembly located at the upper part is arranged at the lower part of the detection end, and the clamping assembly includes a fixing plate (21); The adjustment unit (3) comprises a semi-annular plate (31) mounted on the upper end of the detection platform (1), an arc-shaped through groove (32) is provided on the semi-annular plate (31), an arc-shaped plate (33) slidably connected to the arc-shaped through groove (32) is mounted on the front end of the lower fixed plate (21), and a semi-toothed ring (34) fixedly connected to the lower end of the corresponding fixed plate (21) is rotatably mounted on the rear end of the semi-annular plate (31); The adjustment unit (3) further comprises an adjustment component for adjusting the yarn stretching point, the adjustment component comprising a support frame (311), the left and right ends of the lower fixed plate (21) are both mounted with support frames (311), a vertical plate (312) is slidably mounted on the upper end of the support frame (311), a plurality of groups of pressure rods (313) distributed vertically are arranged on the sides of the left and right vertical plates (312) close to each other, a pressure block (314) is arranged on the end of the pressure rod (313) away from the vertical plate (312), and a driving component for driving the vertical plate (312) to slide horizontally is arranged between the upper ends of the rear sides of the left and right support frames (311).

2. A textile yarn tensile properties testing device according to claim 1, characterized in that: The clamping assembly also includes a mounting plate, a mounting plate is mounted on the rear end of the side where the upper and lower fixing plates (21) are close to each other, a winding column (23) is mounted on the front end of the mounting plate, and arc-shaped clamping blocks (24) are arranged on the left and right sides of the winding column (23) and are connected to the fixing plate (21) for left and right sliding. A mounting groove (25) is provided on the side where the upper and lower fixing plates (21) are close to each other, and an L-shaped push plate (26) is mounted on the end of the arc-shaped clamping block (24) close to the fixing plate (21) and is connected to the mounting groove (25) for left and right sliding. The vertical sections of the left and right L-shaped push plates (26) are A bidirectional electric push rod (27) fixedly connected to the groove wall of the installation groove (25) is connected therebetween. A limit ring (28) is installed on the adjacent side of the left and right arc-shaped clamping blocks (24) in each clamping assembly. A rotating assembly for controlling the rotation of the semi-toothed ring (34) is arranged at the upper end of the detection platform (1). The rotating assembly includes a rotating gear (35). The lower side of the semi-toothed ring (34) is meshed with a rotating gear (35) rotatably installed at the upper end of the detection platform (1). The rear end of the rotating gear (35) is connected to the output shaft of a motor 1 (36) installed at the upper end of the detection platform (1).

3. A textile yarn tensile properties testing device according to claim 1, characterized in that: The pressure rods (313) are all threaded telescopic rods, the pressure blocks (314) are rotatably connected to the telescopic ends of the corresponding pressure rods (313), and the rear ends of the adjacent sides of the left and right vertical plates (312) are both equipped with guide plates (315) that are in sliding contact with the pressure blocks (314), and the guide plates (315) are provided with opening slots (316) that are evenly arranged up and down, and the opening slots (316) on the left and right guide plates (315) are cross-distributed up and down.

4. A textile yarn tensile properties testing device according to claim 1, characterized in that: The end of the pressure rod (313) away from the pressure block (314) is provided with a square plate (318) connected to the corresponding vertical plate (312) for sliding up and down. The vertical plate (312) is provided with a rectangular through slot (319). The end of the square plate (318) away from the pressure rod (313) is installed with a bolt that slides up and down and passes through the rectangular through slot (319). After the bolt passes through the rectangular through slot (319), a nut is threadedly installed.

5. A textile yarn tensile properties testing device according to claim 4, characterized in that: A front-to-rear symmetrical rectangular plate (321) is installed at one end of the square plate (318) close to the pressing rod (313); a rotating shaft fixedly connected to the pressing rod (313) is rotatably installed between the front and rear rectangular plates (321); a rotating column (322) is installed after the rotating shaft passes through the front rectangular plate (321).

6. A textile yarn tensile properties testing device according to claim 5, characterized in that: The outer ring surface of the rotating column (322) is provided with circumferentially evenly arranged insertion holes (323), and the front end of the square plate (318) located on the front side is installed with a positioning plate (324) located above the rotating column (322), and the positioning plate (324) is plugged into and matched with the corresponding insertion holes (323) through a latch.

7. A textile yarn tensile properties testing device according to claim 4, characterized in that: A slide plate (325) is installed at the lower end of the fixed section of the pressure rod (313), and a telescopic column (326) located below the pressure rod (313) is hingedly connected to the lower end of the square plate (318) away from the vertical plate (312), and a pin shaft that is rotatably connected to the slide plate (325) for left-right sliding is installed at the telescopic end of the telescopic column (326).

8. A textile yarn tensile properties testing device according to claim 2, characterized in that: The driving assembly comprises a vertical plate (331) installed at the upper end of a side away from the left and right support frames (311), a horizontal plate (332) installed between the left and right vertical plates (331), a bidirectional lead screw (333) rotatably installed between the upper ends of the left and right vertical plates (331), two moving blocks (334) arranged left and right and slidably connected to the horizontal plate (332) are threadedly sleeved on the bidirectional lead screw (333), the bidirectional lead screw (333) rotates through the vertical plate (331) on the right side and is connected to the output shaft of the second motor (335), and the second motor (335) is installed at the right end of the right vertical plate (331) through a support.

9. A textile yarn tensile properties testing device according to claim 8, characterized in that: A control board (336) is installed in the middle of the rear end of the vertical board (312), and a square through hole (337) symmetrically arranged in the rear end of the moving block (334) is provided. A connecting frame (338) is provided at the rear end of the control board (336) for sliding forward and backward and is simultaneously plugged into and matched with two square through holes (337) on the corresponding moving block (334).

10. A textile yarn tensile properties testing device according to claim 8, characterized in that: Support rods (211) are installed at the rear end of the mounting plate located at the bottom and the rear ends of the vertical plates (331) on the left and right sides. An arc frame (212) located at the rear side of the semi-circular plate (31) is installed at the upper end of the detection platform (1). An arc guide groove (213) slidably connected to the support rod (211) is provided on the arc frame (212). The arc guide groove (213) is cocentric with the arc through groove (32).

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