A new yarn tensile strength testing device for textile materials

Abstract

This invention belongs to the field of textile technology, and specifically relates to a new yarn tensile strength testing device for textile materials. The device includes: a testing platform; and a clamping mechanism, comprising two sets of opposing clamping mechanisms for softly clamping different types of yarn. Each clamping mechanism includes a support block, with a support rod fixedly connected to the upper end of the support block. A mounting ring is fixedly connected to the upper end of the support rod, and multiple U-shaped frames arranged in a circumferential array are fixedly connected to the inner wall of the mounting ring. Clamping rings are fixedly connected between the multiple U-shaped frames. This invention, by setting up a clamping mechanism, can form an adaptively adjustable clamping ring through multiple circumferentially arrayed arc-shaped blocks connected to a rotating shaft. Combined with a soft clamping rod and an elastic airbag controlled by inflation and deflation, it can softly clamp different types of yarn, firmly fixing the yarn while avoiding hard damage, ensuring the integrity of the yarn during testing.

Description

Technical Field

[0001] This invention belongs to the field of textile technology, and in particular relates to a device for testing the tensile strength of new textile yarns. Background Technology

[0002] In the booming development of the textile industry, the research and application of new material yarns have continued to accelerate, becoming a key force driving industry innovation and upgrading. New types of yarns, such as high-performance fiber yarns, intelligent color-changing yarns, and functional antibacterial yarns, are constantly emerging. These new material yarns, with their unique performance advantages, are widely used in high-end textiles and apparel, medical protective equipment, aerospace, smart wearables, and many other fields.

[0003] With the increasing demands for textile material performance across various sectors, yarn quality and performance testing has become a core element in ensuring product quality. Tensile strength testing, as a crucial indicator of yarn quality, is receiving growing attention within the industry. However, traditional yarn tensile strength testing devices have numerous limitations and typically present the following technical problems during use:

[0004] 1. Limited tensile force provision method: Some traditional devices use simple mechanical stretching methods, which can provide limited tensile force. For some high-strength new material yarns, they cannot produce sufficient tensile deformation, so they cannot fully detect the performance of these yarns when subjected to large tensile forces, resulting in one-sided test results.

[0005] 2. Poor adaptability of clamping components: New material yarns of different thicknesses and materials have very different characteristics. However, traditional clamping components have a single specification. During the clamping process, they either cannot firmly fix the yarn, causing the yarn to slip off during testing and affecting the accuracy of the test; or the clamping force is too large, causing damage to soft or fragile yarns, which also makes the test results unreliable and difficult to adapt to a wide range of tests.

[0006] 3. Insufficient consideration of environmental factors: The performance of yarn is significantly affected by ambient temperature and humidity. However, most existing testing devices do not have different temperature and humidity gradient environments and can only be tested in normal environments. They cannot obtain tensile performance data of yarn under various environmental conditions, so the test results cannot truly reflect the performance of yarn in actual use scenarios, which is not conducive to a comprehensive evaluation of yarn quality. Summary of the Invention

[0007] The purpose of this invention is to address the problems mentioned in the background art by providing a new type of yarn tensile testing device for textiles that can softly clamp different types of yarn, thus firmly fixing the yarn while avoiding hard damage to it.

[0008] To achieve the above objectives, the present invention adopts the following technical solutions:

[0009] A new type of yarn tensile testing device for textiles includes:

[0010] Testing platform;

[0011] The clamping mechanism comprises two sets arranged opposite to each other for soft clamping of yarns of different types. Each clamping mechanism includes a support block, a support rod fixedly connected to the upper end of the support block, an mounting ring fixedly connected to the upper end of the support rod, and multiple U-shaped frames arranged in a circular array fixedly connected to the inner wall of the mounting ring. Clamping rings are fixedly connected between the multiple U-shaped frames. Each clamping ring includes multiple arc-shaped blocks arranged in a circular array and a rotating shaft rotatably connected between two adjacent arc-shaped blocks. A clamping flexible rod is fixedly connected to the rotating shaft. Two fixed rods are fixedly connected to the side wall of the clamping flexible rod away from the center of the detection platform. Two inclined plates are fixedly connected to the two fixed rods. An elastic airbag is fixedly connected between the two inclined plates. The end of the clamping flexible rod is fixedly connected to the outer wall of the elastic airbag. The support block is equipped with a pump unit for inflating and deflating the elastic airbag.

[0012] The testing mechanism is used to drive two sets of clamping mechanisms to move closer or further apart to detect the tension of the yarn.

[0013] Preferably, the air pump unit includes an air pump fixedly connected to the upper end of the support block, and the air pump is connected to two air supply pipes, one of which connects the air pump to the outside, and the other connects the air pump to the elastic airbag.

[0014] Preferably, the detection mechanism includes a bidirectional first threaded rod rotatably connected inside the detection platform. The two sides of the first threaded rod are provided with threads in opposite directions. Two sliding grooves are opened at the upper end of the detection platform. The two threaded ends of the first threaded rod are respectively located in the two sliding grooves. A slider is threadedly connected to the two threaded ends of the first threaded rod. The slider is fixedly connected to a support block at a corresponding position. A first motor for driving the first threaded rod is fixedly connected to one end of the detection platform.

[0015] Preferably, a dustproof mechanism is provided above the testing platform to prevent dust from affecting the tensile strength testing of the yarn. The dustproof mechanism includes a fixed plate fixedly connected to the side wall of the testing platform. A second threaded rod is rotatably connected to the fixed plate. A lifting block is threadedly connected to the second threaded rod. A dust cover is fixedly connected to the side wall of the lifting block. A second motor for driving the second threaded rod is fixedly connected to the lower end of the fixed plate.

[0016] Preferably, a limiting rod is fixedly connected to the upper end of the fixed plate, and the limiting rod is slidably connected to the lifting block.

[0017] Preferably, a ventilation mechanism is provided between the two side walls of the dust cover to avoid the humidity of the working environment inside the dust cover affecting the test results during the tensile test. The ventilation mechanism includes ventilation ducts fixedly connected to the two side walls of the dust cover, one of the ventilation ducts is equipped with a fan, and the ventilation duct where the fan is located is equipped with a dust filter.

[0018] Preferably, a humidity sensor is fixedly connected to the inner wall of the dust cover, and a PLC controller is fixedly connected to the outer wall of the dust cover.

[0019] Preferably, the PLC controller adjusts the fan power based on the humidity data inside the dust cover fed back by the humidity sensor.

[0020] Compared with existing technologies, the advantages of this new textile yarn tensile strength testing device are:

[0021] 1. This invention, by setting up a clamping mechanism, can form an adaptively adjustable clamping ring by connecting multiple circumferentially arrayed arc-shaped blocks with a rotating shaft. Combined with a soft clamping rod and an elastic airbag controlled by inflation and deflation, it can softly clamp different types of yarn, which can firmly fix the yarn while avoiding hard damage to the yarn, ensuring the integrity of the yarn during the testing process, and providing a strong guarantee for obtaining accurate tensile test results. For example, when testing delicate and fragile new fiber yarns, the clamping force of the clamping rod can be adjusted by precisely controlling the inflation amount of the elastic airbag, ensuring that the yarn will not slip off, but will not be damaged by excessive clamping.

[0022] 2. By setting up a detection mechanism, this invention can utilize the cooperation of a bidirectional first threaded rod and a slider, driven by a first motor, to precisely control the relative movement of two sets of clamping mechanisms. This enables accurate adjustment and stable detection of yarn tension, meeting the requirements of different detection standards for tension magnitude and rate of change, thus improving the accuracy and reliability of detection. For example, when simulating the stress conditions of yarn in the actual weaving process, the moving speed and distance of the clamping mechanism can be precisely adjusted to simulate different tension change curves, providing an accurate basis for evaluating the performance of yarn in actual use.

[0023] 3. This invention, by setting up a dustproof mechanism, can drive a second threaded rod via a second motor to raise and lower the dustproof cover, effectively preventing dust from affecting the yarn tension test. At the same time, ventilation mechanisms are set on both sides of the dustproof cover. Combined with a humidity sensor and a PLC controller, the fan power can be adjusted in real time according to the humidity data inside the dustproof cover, avoiding humidity interference with the test results and creating stable and suitable environmental conditions for the test, further improving the reliability of the test results. For example, when the test is carried out in a high-humidity environment, if the humidity sensor detects that the humidity exceeds the standard, the PLC controller will immediately control the fan to increase the power, accelerate ventilation, reduce the humidity inside the dustproof cover, and ensure that the test is not affected by the humid environment. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another angle;

[0026] Figure 3 This is a partial structural schematic diagram of the clamping mechanism in this invention;

[0027] Figure 4 This is a partial structural diagram of the clamping mechanism in this invention from another angle;

[0028] Figure 5 This is a bottom view of the dust cover structure in this invention;

[0029] Figure 6 This is a partial structural diagram of the first threaded rod in this invention.

[0030] In the picture:

[0031] 1. Detection platform; 2. Clamping mechanism; 21. Support block; 22. Support rod; 23. Mounting ring; 24. U-shaped frame; 25. Clamping ring; 251. Arc block; 252. Rotating shaft; 26. Clamping flexible rod; 27. Fixing rod; 28. Inclined plate; 29. ​​Elastic airbag; 3. Detection mechanism; 31. First threaded rod; 32. Slide groove; 33. Slider; 34. First motor; 4. Air pump; 41. Air supply pipeline; 5. Dustproof mechanism; 51. Fixing plate; 52. Second threaded rod; 53. Lifting block; 54. Dust cover; 55. Second motor; 6. Limiting rod; 7. Ventilation mechanism; 71. Ventilation duct; 72. Fan; 8. Humidity sensor; 9. PLC controller. Detailed Implementation

[0032] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0033] Example: Refer to Figures 1 to 6A new type of yarn tensile testing device for textiles, comprising:

[0034] Testing platform 1, as the basic support structure of the entire device, provides a platform for the installation and operation of other components, ensuring that each mechanism can work stably during the testing process;

[0035] The clamping mechanism 2 comprises two sets arranged opposite to each other for soft clamping of yarns of different grades. Each clamping mechanism 2 includes a support block 21, with a support rod 22 fixedly connected to the upper end of the support block 21. A mounting ring 23 is fixedly connected to the upper end of the support rod 22. Multiple U-shaped frames 24 arranged in a circular array are fixedly connected to the inner wall of the mounting ring 23. Clamping rings 25 are fixedly connected between the multiple U-shaped frames 24. Each clamping ring 25 includes multiple arc-shaped blocks 251 arranged in a circular array and a rotating shaft 252 rotatably connected between adjacent arc-shaped blocks 251. This structural design allows the clamping rings 25 to adaptively adjust to a certain extent according to the thickness and shape of the yarn, improving the versatility and stability of the clamping. The rotating shaft 252 is fixedly connected to a clamping flexible rod 26. The clamping flexible rod 26 is made of a soft material, which can avoid causing hard damage to the yarn when clamping it, ensuring the integrity of the yarn during the testing process, and thus ensuring the accuracy of the test results. Two fixed rods 27 are fixedly connected to the side wall of the clamping flexible rod 26 away from the center of the testing platform 1. Two inclined plates 28 are fixedly connected to the two fixed rods 27, forming a specific space between the two inclined plates 28 for installing an elastic airbag 29. An elastic airbag 29 is fixedly connected between the two inclined plates 28. The end of the clamping flexible rod 26 is fixedly connected to the outer wall of the elastic airbag 29. The support block 21 is equipped with an air pump unit for inflating and deflating the elastic airbag 29.

[0036] When the elastic airbag 29 is inflated, its volume expands, pushing one end of the clamping rod 26 outward, thereby causing the other end of the clamping rod 26 to move inward, thus clamping and fixing the yarn. When the elastic airbag 29 is deflated, the elastic element inside the elastic airbag 29 returns it to its initial state, thereby flexibly adjusting the clamping force according to the characteristics of the yarn. For example, for softer yarns, the inflation amount of the elastic airbag 29 can be appropriately reduced to avoid excessive clamping force damaging the yarn; for harder, less deformable yarns, the inflation amount can be increased to ensure a firm clamping.

[0037] Specifically, the air pump unit includes an air pump 4 fixedly connected to the upper end of the support block 21. The air pump 4 has two air supply pipes 41 connected to it; one pipe connects the air pump 4 to the outside environment, and the other connects the air pump 4 to the elastic airbag 29. The air pump 4 is a high-precision, stable model, capable of precisely controlling the inflation and deflation speed and volume, ensuring accurate adjustment of the clamping force.

[0038] The detection mechanism 3 is used to drive two sets of clamping mechanisms 2 to move closer or further apart to detect the tension of the yarn. The detection mechanism 3 includes a bidirectional first threaded rod 31 rotatably connected inside the detection platform 1. The two sides of the first threaded rod 31 are provided with threads in opposite directions. When the first threaded rod 31 rotates, the components at the threads on both sides will move in opposite directions. The upper end of the detection platform 1 has two sliding grooves 32, which provide a moving track for the slider 33, ensuring that the slider 33 can only move horizontally in a predetermined direction, thereby ensuring that the movement of the clamping mechanism 2 is stable and accurate. The threads on both sides of the first threaded rod 31 are respectively located in the sliding grooves 32 on both sides. The slider 33 is threadedly connected to the threads on both sides of the first threaded rod 31. The slider 33 is fixedly connected to the support block 21 at the corresponding position. One end of the detection platform 1 is fixedly connected to a first motor 34 for driving the first threaded rod 31.

[0039] The first motor 34 serves as the power source for the detection mechanism 3. By driving the first threaded rod 31 to rotate, it indirectly enables the two sets of clamping mechanisms 2 to move closer or further apart, thereby applying tension to the yarn for detection.

[0040] A dustproof mechanism 5 is also provided above the testing platform 1 to prevent dust from affecting the yarn tensile strength test. The dustproof mechanism 5 includes a fixing plate 51 fixedly connected to the side wall of the testing platform 1. The fixing plate 51 provides a mounting base for other components of the dustproof mechanism, ensuring that the entire dustproof mechanism can be stably installed above the testing platform 1. A second threaded rod 52 is rotatably connected to the fixing plate 51. The second threaded rod 52 rotates under the drive of a motor, realizing the up-and-down movement of the lifting block 53. The lifting block 53 is threadedly connected to the second threaded rod 52. The lifting block 53 rises and falls vertically as the second threaded rod 52 rotates, thereby driving the dust cover 54 to move up and down. The dust cover 54 is fixedly connected to the side wall of the lifting block 53. The dust cover 54 can cover the yarn and clamping mechanism during the testing process, preventing external dust from entering and avoiding interference with the yarn tensile strength test results. The lower end of the fixed plate 51 is fixedly connected to a second motor 55 for driving the second threaded rod 52. The second motor 55 serves as the power source for the dustproof mechanism 5, driving the second threaded rod 52 to rotate, thereby realizing the lifting and lowering operation of the dustproof cover 54.

[0041] Specifically, a limiting rod 6 is fixedly connected to the upper end of the fixed plate 51. The limiting rod 6 is slidably connected to the lifting block 53. The function of the limiting rod 6 is to restrict the movement trajectory of the lifting block 53, prevent the lifting block 53 from rotating or deviating during the lifting process, ensure that the dust cover 54 can move up and down smoothly, and improve the stability and reliability of the dustproof mechanism.

[0042] A ventilation mechanism 7 is provided between the two side walls of the dust cover 54 to prevent the humidity of the working environment inside the dust cover 54 from affecting the test results during tensile testing. The ventilation mechanism 7 includes ventilation ducts 71 fixedly connected to the two side walls of the dust cover 54. One of the ventilation ducts 71 is equipped with a fan 72, which serves as a ventilation power source, causing air to flow within the ventilation duct 71 to achieve rapid air renewal inside the dust cover 54. A dust filter is provided on the ventilation duct 71 where the fan 72 is located. The dust filter can prevent external dust from entering the dust cover 54 through the ventilation duct 71, thus maintaining a clean environment inside the dust cover 54 while ensuring ventilation effectiveness.

[0043] Specifically, a humidity sensor 8 is fixedly connected to the inner wall of the dust cover 54, and a PLC controller 9 is fixedly connected to the outer wall of the dust cover 54.

[0044] Specifically, the PLC controller 9 adjusts the power of the fan 72 based on the humidity data inside the dust cover 54 fed back by the humidity sensor 8. When the humidity sensor 8 detects that the humidity inside the dust cover 54 is too high, the PLC controller 9 controls the fan 72 to increase its power and speed up the ventilation, so that the humid air inside the dust cover 54 can be discharged more quickly and the humidity can be reduced. When the humidity sensor 8 detects that the humidity inside the dust cover 54 is too low, the PLC controller 9 controls the fan 72 to reduce its power and reduce the ventilation volume, so as to maintain a suitable humidity environment inside the dust cover 54 and ensure that the yarn tensile strength test results are not affected by humidity factors.

[0045] The functional principle of this invention can be explained through the following operational methods:

[0046] Before conducting the yarn tensile strength test, the inflation volume of the elastic airbag 29 is adjusted by the air pump unit according to the yarn's model and characteristics. This adjusts the clamping rod 26 of the clamping mechanism 2 to a suitable clamping force, allowing the yarn to be placed between the two sets of clamping mechanisms 2 and clamped and fixed. The second motor 55 of the dustproof mechanism 5 is activated, causing the dust cover 54 to descend and cover the yarn and clamping mechanisms 2, preventing dust from entering. Next, the first motor 34 of the detection mechanism 3 is activated, driving the first threaded rod 31 to rotate, causing the two sets of clamping mechanisms 2 to move away from each other, applying tensile strength to the yarn for testing. During the testing process, the humidity sensor 8 monitors the humidity inside the dust cover 54 in real time. If the humidity is abnormal, the PLC controller 9 adjusts the power of the fan 72 based on the humidity data, regulating the humidity inside the dust cover 54 through the ventilation mechanism 7 to ensure a stable testing environment and obtain accurate yarn tensile strength test results.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for detecting the tensile strength of new textile material yarns, characterized in that, include: Detection platform (1); The clamping mechanism (2) has two sets arranged opposite to each other, used for soft clamping of yarns of different types. The clamping mechanism (2) includes a support block (21), the upper end of which is fixedly connected to a support rod (22), the upper end of which is fixedly connected to an mounting ring (23), the inner wall of which is fixedly connected to multiple U-shaped frames (24) arranged in a circular array, and clamping rings (25) are fixedly connected between the multiple U-shaped frames (24). The clamping rings (25) include multiple arc-shaped blocks (251) arranged in a circular array and a rotating link. A rotating shaft (252) is connected between two adjacent arc-shaped blocks (251). A clamping flexible rod (26) is fixedly connected to the rotating shaft (252). Two fixing rods (27) are fixedly connected to the side wall of the clamping flexible rod (26) away from the center of the detection platform (1). Two inclined plates (28) are fixedly connected to the two fixed rods (27). An elastic airbag (29) is fixedly connected between the two inclined plates (28). The end of the clamping flexible rod (26) is fixedly connected to the outer wall of the elastic airbag (29). A pump unit for inflating and deflating the elastic airbag (29) is provided on the support block (21). The detection mechanism (3) is used to drive the two sets of clamping mechanisms (2) to move closer or further apart to achieve the detection of the tension of the yarn; The pump unit includes an air pump (4) fixedly connected to the upper end of the support block (21). The air pump (4) is connected to two air supply pipes (41). One of the air supply pipes (41) connects the air pump (4) to the outside, and the other air supply pipe (41) connects the air pump (4) to the elastic airbag (29). The detection mechanism (3) includes a bidirectional first threaded rod (31) rotatably connected inside the detection platform (1). The two sides of the first threaded rod (31) are provided with threads in opposite directions. The upper end of the detection platform (1) has two sliding grooves (32). The threads on both sides of the first threaded rod (31) are respectively located in the sliding grooves (32) on both sides. The threads on both sides of the first threaded rod (31) are threaded with sliders (33). The sliders (33) are fixedly connected to the support blocks (21) at the corresponding positions. One end of the detection platform (1) is fixedly connected to a first motor (34) for driving the first threaded rod (31).

2. The textile new material yarn tensile strength testing device according to claim 1, characterized in that, The detection platform (1) is also provided with a dustproof mechanism (5) to prevent dust from affecting the tensile strength detection of yarn. The dustproof mechanism (5) includes a fixed plate (51) fixedly connected to the side wall of the detection platform (1). A second threaded rod (52) is rotatably connected to the fixed plate (51). A lifting block (53) is threadedly connected to the second threaded rod (52). A dust cover (54) is fixedly connected to the side wall of the lifting block (53). A second motor (55) for driving the second threaded rod (52) is fixedly connected to the lower end of the fixed plate (51).

3. The tensile strength testing device for new textile material yarns according to claim 2, characterized in that, The upper end of the fixed plate (51) is fixedly connected to a limiting rod (6), and the limiting rod (6) is slidably connected to the lifting block (53).

4. The tensile strength testing device for new textile material yarns according to claim 2, characterized in that, A ventilation mechanism (7) is provided between the two side walls of the dust cover (54) to prevent the humidity of the working environment inside the dust cover (54) from affecting the test results during the tensile test. The ventilation mechanism (7) includes ventilation ducts (71) fixedly connected to the two side walls of the dust cover (54). A fan (72) is provided in one of the ventilation ducts (71), and a dust filter is provided on the ventilation duct (71) where the fan (72) is located.

5. The tensile strength testing device for new textile material yarns according to claim 4, characterized in that, A humidity sensor (8) is fixedly connected to the inner wall of the dust cover (54), and a PLC controller (9) is fixedly connected to the outer wall of the dust cover (54).

6. The tensile strength testing device for new textile material yarns according to claim 5, characterized in that, The PLC controller (9) adjusts the power of the fan (72) based on the humidity data inside the dust cover (54) fed back by the humidity sensor (8).

Images