A testing device for the properties of high anti-aging hydrophilic fibers

Abstract

This invention discloses a testing device for the performance of high-anti-aging hydrophilic fibers, relating to the field of fiber fabric performance testing technology. The device includes a testing chamber with hinged doors on both sides of its lower surface. Pneumatic clamping assemblies for fixing strip-shaped fiber samples are installed on the left and right inner walls of the chamber. An ultraviolet lamp is installed on the top wall of the chamber, and a support frame is fixed on one inner wall, with a support beam extending along its length at the top of the support frame. This invention allows the sample to be simultaneously subjected to the interaction of three factors: ultraviolet radiation, temperature, and mechanical stress. This overcomes the limitations of traditional single-factor testing, enabling precise laboratory simulation of the complex multi-factor coupled aging conditions faced by high-anti-aging hydrophilic fiber materials in actual use environments, thus realistically reflecting the material's performance in real-world applications.

Description

Technical Field

[0001] This invention relates to the field of fiber fabric performance testing technology, specifically to a testing device for high anti-aging hydrophilic fiber performance. Background Technology

[0002] High-anti-aging hydrophilic fiber is an advanced fiber material that combines excellent environmental aging resistance with good hydrophilicity. Its anti-aging properties allow it to maintain stable performance even after long-term exposure to harsh environments such as ultraviolet radiation, oxidation, and high temperatures, while its hydrophilicity enhances the fiber's moisture absorption and wearing comfort. As a result, this type of fiber is widely used in outdoor sportswear, functional textiles, industrial filtration materials, and automotive and aerospace interiors, meeting the demand for high-performance textiles that combine durability and comfort. To ensure its performance meets actual usage requirements, high-anti-aging hydrophilic fiber needs to undergo systematic performance testing. The testing mainly includes anti-aging performance testing, which assesses the fiber's stability and durability under different environmental conditions by simulating ultraviolet radiation, thermal aging, and oxidation environments; hydrophilic performance testing, which measures indicators such as water absorption rate, contact angle, and moisture permeability to determine the fiber's moisture absorption and breathability; mechanical properties such as tensile strength, abrasion resistance, and elastic recovery are also tested to ensure the fiber's mechanical stability and comfort during use; and chemical performance testing evaluates the fiber's resistance to acidic, alkaline, and corrosive environments.

[0003] For example, the elasticity performance testing device for fiber fabrics disclosed in authorization announcement number CN118518496B includes a base and a fabric to be tested. A support plate is fixedly connected to the top of the base, and four connecting columns arranged in a rectangular array are also fixedly connected to the top of the base. A first scale line is provided on one side of the support plate. An auxiliary component is provided on the top of the base between the four connecting columns. This auxiliary component, in conjunction with a marking component, can mark two segments of the marking line. The distance between the two segments of the marking line can be determined by the first scale line. After pulling with weights and letting it stand for a period of time, the distance between the two segments of the marking line is measured again, and the elasticity performance can be calculated. However, the above technical solution, like existing technical solutions, mainly targets fibers. Physical simulation testing of the single tensile strength of fabrics is insufficient because the properties of high-anti-aging hydrophilic fiber materials are complex and diverse, involving multiple aspects such as anti-aging, hydrophilicity, mechanical strength, and chemical stability. Single-performance testing methods cannot fully reflect the multiple complex factors faced by fibers in actual application environments. That is, during use, high-anti-aging hydrophilic fibers are often simultaneously subjected to the interaction of multiple factors such as ultraviolet rays, humidity, temperature, and mechanical stress. Single-performance testing cannot simulate the comprehensive influence of these factors, leading to deviations between test results and actual performance. Furthermore, single-performance testing cannot reveal the interrelationships and synergistic effects between properties. For example, an improvement in hydrophilicity may affect the fiber's aging resistance, or changes in mechanical properties may accelerate the aging process under specific environments. Summary of the Invention

[0004] The purpose of this invention is to provide a testing device for high anti-aging hydrophilic fiber performance. The high anti-aging hydrophilic fiber sample to be tested is fixed by a pneumatic clamping assembly on the left and right inner walls of the testing chamber. The ultraviolet lamp and chain drive unit are activated by the PLC control panel. The chain drive unit transmits power to the lifting and friction composite fatigue testing assembly located on the left and right sides of the chamber. The assembly applies cyclic lifting and friction actions to the sample. The centrifugal driven speed-increasing blower assembly also receives power from the chain drive unit and blows hot air onto the sample. This allows the sample to be subjected to the interaction of three factors: ultraviolet light, temperature, and mechanical stress, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a testing device for the performance of high anti-aging hydrophilic fibers, comprising;

[0006] The testing chamber has doors hinged on both sides near the bottom of its surface. Pneumatic clamping assemblies for fixing strip-shaped fiber samples are installed on both the left and right inner walls of the testing chamber. Ultraviolet lamps are installed on the top wall of the testing chamber. A support frame is fixed on one inner wall of the testing chamber, and a support beam extending along its length is installed at the top of the support frame. Centrifugal driven speed-increasing blower assemblies are installed on both sides of the top of the support beam.

[0007] The test chamber includes two pull-friction composite fatigue testing assemblies, one on each of the left and right inner walls. A pulley drive structure for power connection is installed between the output shaft of the pull-friction composite fatigue testing assembly and the input shaft of the centrifugal driven speed-increasing blower assembly. A chain drive unit for synchronously driving the two pull-friction composite fatigue testing assemblies is installed on the back of the test chamber. A PLC control panel is installed near the top of the test chamber surface. The output of the PLC control panel is electrically connected to the chain drive unit, the ultraviolet lamp, and the input of the centrifugal driven speed-increasing blower assembly.

[0008] Preferably, the pneumatic clamping assembly includes a support fixed on one inner wall of the testing box, a cylinder mounted on the top of the support, and an upper pressure plate fixed to the bottom of the cylinder piston rod. A lower support is fixed on the inner wall of the testing box below the upper pressure plate. The input end of the cylinder is electrically connected to the output end of the PLC control panel.

[0009] Preferably, each of the top corners of the upper pressure plate is fixed with an upwardly extending guide post, the top of which extends through to the outside of the support.

[0010] Preferably, the chain drive unit includes a chain cover fixed to the back of the test box, a geared motor installed at one end of the back of the chain cover, and a double sprocket transmission structure installed inside the chain cover. The drive shaft of the geared motor is used to drive one of the lifting friction composite fatigue testing assemblies to work, and the drive shaft of the geared motor drives the other lifting friction composite fatigue testing assembly to work through the double sprocket transmission structure.

[0011] Preferably, the lifting-friction composite fatigue testing assembly includes a bearing housing 1 and a bearing housing 2 fixed on the inner wall of one side of the testing chamber, and a longitudinal bevel gear shaft and a vertical bevel gear shaft rotatably mounted inside the bearing housing 1 and the bearing housing 2, respectively. The central axis of the longitudinal bevel gear shaft and the central axis of the vertical bevel gear shaft are perpendicular to each other on the side view projection plane, and the longitudinal bevel gear shaft and the vertical bevel gear shaft mesh with each other. One end of the longitudinal bevel gear shaft is fixedly connected to the drive shaft of the reduction motor. A connecting rod type reciprocating lifting structure is installed at the end of the longitudinal bevel gear shaft away from the reduction motor. A connecting rod type reciprocating friction structure is installed at the lower end of the vertical bevel gear shaft. One end of the surface of the vertical bevel gear shaft drives one of the centrifugal driven speed-increasing blower assemblies to work through a pulley transmission structure.

[0012] Preferably, the linkage reciprocating lifting structure includes a T-shaped seat fixed on one side of the inner wall of the testing box, two guide rods fixed at the top of the T-shaped seat, and a Z-shaped plate slidably mounted on one end of the surface of the two guide rods. A first connecting rod is hinged to the back of the Z-shaped plate. A first turntable is fixed to the end of the longitudinal bevel gear shaft away from the reduction motor. The upper ends of the first turntable and the first connecting rod are hinged to each other. Two longitudinal beam arms are integrally formed on one side of the surface of the Z-shaped plate, and a gap is provided between the two longitudinal beam arms.

[0013] Preferably, the linkage reciprocating friction structure includes a vertical shaft rotatably mounted on one side of the bottom end of the support frame, a lower rocker arm fixedly mounted on the bottom end of the vertical shaft, and a second turntable fixed to the lower end of the vertical bevel gear shaft. A second connecting rod is hinged at the edge of the bottom end of the second turntable. One end of the second connecting rod and one end of the lower rocker arm are hinged to each other. The top end of the vertical shaft extends through to the outside of the support frame and is fixed with a brush.

[0014] Preferably, a drive shaft is rotatably mounted on the bottom end of the support frame on the side of the vertical shaft away from the vertical center reference plane of the support frame, and the lower end of the drive shaft is connected to the vertical bevel gear shaft through a pulley transmission structure.

[0015] Preferably, the centrifugal driven speed-increasing blower assembly includes a forward-inclined centrifugal fan mounted on one side of the top of the support beam, an electric heating rod mounted on the outlet end of the forward-inclined centrifugal fan, and a driven double-layer gear shaft rotatably mounted on one side of the top of the support frame. The input end of the electric heating rod is electrically connected to the output end of the PLC control panel.

[0016] Preferably, a speed-increasing gear pair is installed between the driven double-layer gear shaft and the input shaft of the forward-inclined centrifugal fan, and a driving gear is fixed at one end of the surface of the transmission shaft, with the driving gear and the driven double-layer gear shaft meshing with each other.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The high anti-aging hydrophilic fiber performance testing equipment is equipped with a testing chamber, a pneumatic clamping assembly, a chain drive unit, an ultraviolet lamp, a lifting friction composite fatigue testing assembly, and a centrifugal driven speed-increasing blower assembly, etc., which cooperate with each other. The high anti-aging hydrophilic fiber sample to be tested is fixed by the pneumatic clamping assembly on the left and right inner walls of the testing chamber. The ultraviolet lamp and the chain drive unit are turned on by the PLC control panel. The chain drive unit transmits the pressure to the lifting friction composite fatigue testing assembly on the left and right sides of the chamber. The power system applies cyclic lifting and friction actions to the sample through this assembly, while the centrifugal driven speed-increasing blower assembly also receives power from the chain drive unit and blows hot air onto the sample. This causes the sample to be simultaneously subjected to the interaction of three factors: ultraviolet radiation, temperature, and mechanical stress. This breaks through the limitations of traditional single-factor testing and enables precise laboratory simulation of the complex multi-factor coupled aging conditions faced by high anti-aging hydrophilic fiber materials in actual use environments. It truly reflects the performance of the material in actual use environments and provides solid technical support for material performance evaluation and improvement.

[0018] The high-anti-aging hydrophilic fiber sample is fixed by a pneumatic clamping assembly on the left and right inner walls of the testing chamber, ensuring the stability and repeatability of the sample's position during testing. The PLC control panel can precisely activate the ultraviolet lamps and chain drive unit according to testing needs, ensuring the consistency of the ultraviolet irradiation intensity and the rhythm of the mechanical movements of the lifting friction composite fatigue testing assembly and the centrifugal driven speed-increasing blower assembly, improving the repeatability and controllability of subsequent tests. During this process, the ultraviolet photon energy gradually induces the breakage and cross-linking of the material's polymer chains, causing them to become embrittled. Simultaneously, the continuous hot air load not only provides the activation energy required for thermal oxidative degradation, accelerating the movement and cleavage of molecular chains, but also continuously removes the air layer from the material surface, ensuring... Ultraviolet energy acts more fully on the fiber surface and simulates the temperature cycle brought about by the wind cooling effect. Meanwhile, mechanical lifting and friction are applied simultaneously to this material undergoing photochemical and thermochemical reactions. This mechanical stress directly acts on the molecular structure that has been initially weakened due to photothermal aging. Through physical force, it accelerates the initiation and propagation of microcracks, causes the surface modification layer or anti-aging additives to peel off, and even destroys the morphological structure of the fiber, exposing new, undegraded inner material that continues to be subjected to environmental stress. This forms a continuous positive feedback accelerated destruction cycle. The synergistic effect of light, heat, and mechanics mutually promotes and intensifies each other, thus more comprehensively reflecting the material's performance in complex environments.

[0019] Secondly, a single chain drive unit simultaneously powers both the lifting friction composite fatigue testing assembly and the centrifugal driven speed-increasing blower assembly. This single power source allocation design not only improves energy utilization efficiency but also fundamentally ensures the timing synchronization and intensity coordination between mechanical actions and wind power supply. This avoids problems such as control asynchrony and mutual interference that may arise from using multiple independent drive sources. The PLC control panel uniformly commands the ultraviolet lamps, chain drive unit, and temperature control, giving the entire multi-factor stress application process extremely high repeatability, programmability, and control precision. Operators can accurately set and reproduce various harsh test conditions, such as simulating mechanical fatigue under temperature difference cycling or ultraviolet exposure under different wind speed conditions. This allows for a systematic study of the coupling influence of various factors on material properties under different combinations and intensities, providing more experimental testing options and contributing to a deeper understanding of the performance mechanism of limiting materials. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0022] Figure 3 This is a three-dimensional structural diagram of the box door after it has been removed.

[0023] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the detection box of the present invention. Figure 1 .

[0024] Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure of the detection box of the present invention. Figure 2 .

[0025] Figure 6 This is a schematic diagram of the three-dimensional cross-sectional structure of the present invention. Figure 1 .

[0026] Figure 7 This is a schematic diagram of the three-dimensional cross-sectional structure of the present invention. Figure 2 .

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the pull-friction composite fatigue test assembly according to Embodiment 2 of the present invention. Figure 1 .

[0028] Figure 9 This is a schematic diagram of the three-dimensional structure of the pull-friction composite fatigue test assembly according to Embodiment 2 of the present invention. Figure 2 .

[0029] Figure 10This is a three-dimensional structural diagram of the connecting rod reciprocating friction structure according to Embodiment 2 of the present invention.

[0030] Figure 11 This is a three-dimensional structural diagram of the centrifugal driven speed-increasing blower assembly and support beam assembly in the assembly state of Embodiment 3 of the present invention.

[0031] Figure 12 This is a schematic diagram of the three-dimensional structure of the centrifugal driven speed-increasing blower assembly in Embodiment 3 of the present invention. Figure 1 .

[0032] Figure 13 This is a schematic diagram of the three-dimensional structure of the centrifugal driven speed-increasing blower assembly in Embodiment 3 of the present invention. Figure 2 .

[0033] In the diagram: 1. Testing box; 2. Chain drive unit; 201. Chain cover; 202. Double sprocket transmission structure; 203. Gear motor; 3. Box door; 4. PLC control panel; 5. Ultraviolet lamp; 6. Pneumatic clamping assembly; 601. Support; 602. Cylinder; 603. Upper pressure plate; 604. Guide column; 605. Lower support platform; 7. Support frame; 8. Support beam; 9. Centrifugal driven speed-increasing blower assembly; 901. Forward-curved centrifugal fan; 902. Electric heating rod; 903. Driven double-layer gear shaft; 904. Driving gear; 905. Speed-increasing gear pair; 10. Lifting friction composite fatigue test assembly Components: 1001, Bearing Housing 1; 1002, Bearing Housing 2; 1003, Longitudinal Bevel Gear Shaft; 1004, Vertical Bevel Gear Shaft; 1005, Linkage Reciprocating Lifting Structure; 10051, T-shaped Seat; 10052, Guide Rod; 10053, Z-shaped Plate; 10054, Longitudinal Beam Arm; 10055, First Turntable; 10056, First Connecting Rod; 1006, Linkage Reciprocating Friction Structure; 10061, Vertical Shaft; 10062, Brush; 10063, Lower Rocker Arm; 10064, Second Connecting Rod; 10065, Second Turntable; 1007, Drive Shaft; 1008, Pulley Drive Structure. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] Example 1, by Figures 1 to 7The present invention provides a high anti-aging hydrophilic fiber performance testing device, comprising a testing chamber 1, with doors 3 hinged on both sides of the lower part of the surface of the testing chamber 1, pneumatic clamping assemblies 6 for fixing strip fiber samples installed on the left and right inner walls of the testing chamber 1, ultraviolet lamps 5 installed on the top wall of the testing chamber 1, a support frame 7 fixed on one inner wall of the testing chamber 1, and a support beam 8 extending along its length direction installed at the top of the support frame 7, with centrifugal driven speed-increasing blower assemblies 9 installed on both sides of the top of the support beam 8;

[0036] A lifting friction composite fatigue testing assembly 10 is provided. Two lifting friction composite fatigue testing assemblies 10 are respectively installed on the left and right inner walls of the testing box 1. A belt drive structure 1008 for power connection is installed between the output shaft of the lifting friction composite fatigue testing assembly 10 and the input shaft of the centrifugal driven speed-increasing blower assembly 9. A chain drive unit 2 for driving the two lifting friction composite fatigue testing assemblies 10 to work synchronously is installed on the back of the testing box 1. A PLC control panel 4 is installed at the upper position on the surface of the testing box 1. The output end of the PLC control panel 4 is electrically connected to the chain drive unit 2, the ultraviolet lamp 5, and the input end of the centrifugal driven speed-increasing blower assembly 9.

[0037] The sealed structure of the test chamber 1 effectively isolates external environmental interference, ensuring that factors such as ultraviolet radiation, temperature and mechanical stress can be accurately simulated and evenly distributed inside the chamber. By adjusting the speed of the chain drive unit 2, the irradiation intensity of the ultraviolet lamp 5, the operating frequency of the lifting friction composite fatigue test assembly 10, and the wind speed and temperature parameters of the centrifugal driven speed-increasing blower assembly 9 through the PLC control panel 4, different environmental conditions and stress levels can be simulated to meet diverse testing needs.

[0038] The pneumatic clamping assembly 6 includes a support 601 fixed on one side of the inner wall of the test box 1, a cylinder 602 mounted on the top of the support 601, and an upper pressure plate 603 fixed to the bottom of the piston rod of the cylinder 602. A lower support 605 is fixed on the inner wall of the test box 1 below the upper pressure plate 603. The input end of the cylinder 602 is electrically connected to the output end of the PLC control panel 4. An upwardly extending guide post 604 is fixed at the corner of the top of the upper pressure plate 603. The top of the guide post 604 extends through to the outside of the support 601. The two ends of the hydrophilic fiber sample are placed on the lower support 605 on the left and right inner walls of the test box 1. The operator starts the cylinder 602 through the PLC control panel 4 to start the operation. The cylinder 602 drives the upper pressure plate 603 to move down until the upper pressure plate 603 presses the hydrophilic fiber sample on the lower support 605. During this process, the guide post 604 is used to guide the upper pressure plate 603 to slide and move in the Z-axis.

[0039] Pneumatic clamping ensures that the sample is fixed in position during the test, avoiding test data errors caused by sample movement or loosening. In addition, the fast response characteristics of pneumatic clamping also improve the sample loading and unloading efficiency of the chain drive unit 2, which is suitable for high-throughput testing needs.

[0040] The chain drive unit 2 includes a chain cover 201 fixed to the back of the test box 1, a geared motor 203 mounted on one end of the back of the chain cover 201, and a double sprocket transmission structure 202 installed inside the chain cover 201. The drive shaft of the geared motor 203 is used to drive one of the lifting friction composite fatigue testing assemblies 10 to work. The drive shaft of the geared motor 203 drives the other lifting friction composite fatigue testing assembly 10 to work through the double sprocket transmission structure 202. The geared motor 203 works according to the instructions of the PLC control panel 4 according to the set direction, speed, angle, and response time. Then, the drive shaft of the geared motor 203 directly drives one of the lifting friction composite fatigue testing assemblies 10 to start moving. The other lifting friction composite fatigue testing assembly 10 also moves synchronously under the drive of the double sprocket transmission structure 202. Compared with other transmission methods, sprocket and chain transmission has higher wear resistance and reliability, can withstand long-term continuous operation, and ensures the stability of the testing process.

[0041] Example 2, based on Example 1, is... Figure 8 , Figure 9 and Figure 10 The pull-friction composite fatigue testing assembly 10 includes a bearing housing 1001 and a bearing housing 1002 fixed to the inner wall of one side of the test chamber 1, and a longitudinal bevel gear shaft 1003 and a vertical bevel gear shaft 1004 rotatably mounted inside the bearing housing 1001 and the bearing housing 1002, respectively. The central axis of the longitudinal bevel gear shaft 1003 and the central axis of the vertical bevel gear shaft 1004 are perpendicular to each other on the side view projection plane, and the longitudinal bevel gear shaft 1003 and the vertical bevel gear shaft 1004 are respectively rotatably mounted inside the bearing housing 1001 and the bearing housing 1002. The wheel and axle 1004 mesh with each other. One end of the longitudinal bevel gear shaft 1003 is fixedly connected to the drive shaft of the geared motor 203. The end of the longitudinal bevel gear shaft 1003 away from the geared motor 203 is equipped with a connecting rod type reciprocating lifting structure 1005. The lower end of the vertical bevel gear shaft 1004 is equipped with a connecting rod type reciprocating friction structure 1006. One end of the surface of the vertical bevel gear shaft 1004 drives one of the centrifugal driven speed-increasing blower assemblies 9 to work through the pulley transmission structure 1008.

[0042] Taking the lifting friction composite fatigue test assembly 10 near the geared motor 203 as an example, the longitudinal bevel gear shaft 1003 in the lifting friction composite fatigue test assembly 10 is directly driven by the drive shaft of the geared motor 203. The longitudinal bevel gear shaft 1003 will force the hydrophilic fiber sample in the clamping state to be subjected to cyclic lifting through the linkage reciprocating lifting structure 1005, simulating the structural fatigue caused by repeated stretching of the material. At the same time, the longitudinal bevel gear shaft 1003 drives the vertical bevel gear shaft 1004 to rotate. The lower end of the vertical bevel gear shaft 1004 is subjected to friction treatment on the lower surface of the hydrophilic fiber sample through the linkage reciprocating friction structure 1006, simulating the wear caused by contact with other object surfaces. In this way, the composite mechanical action is used to more realistically simulate the comprehensive mechanical burden borne by the limiting material during wearing, washing and use, which greatly accelerates the aging and failure process of the material and reveals the synergistic destructive effect that cannot be caused by a single mechanical action.

[0043] The linkage-type reciprocating lifting structure 1005 includes a T-shaped seat 10051 fixed to the inner wall of one side of the detection box 1, two guide rods 10052 fixed to the top of the T-shaped seat 10051, and a Z-shaped plate 10053 slidably mounted on one end of the surface of the two guide rods 10052. A first connecting rod 10056 is hinged to the back of the Z-shaped plate 10053. A first turntable 10055 is fixed to the end of the longitudinal bevel gear shaft 1003 away from the reduction motor 203. The first turntable 10055 and the first connecting rod 10056 are connected together. The upper ends of 56 are hinged to each other. Two longitudinal beam arms 10054 are integrally formed on one side of the surface of the Z-shaped plate 10053. A gap is provided between the two longitudinal beam arms 10054. The first turntable 10055 rotates under the drive of the longitudinal bevel gear shaft 1003. Then, the first turntable 10055 drives the Z-shaped plate 10053 and the longitudinal beam arms 10054 to perform reciprocating lifting and lowering actions through the first connecting rod 10056. At this time, the hydrophilic fiber sample located between the two longitudinal beam arms 10054 is subjected to reciprocating lifting action.

[0044] The linkage-type reciprocating friction structure 1006 includes a vertical shaft 10061 rotatably mounted on one side of the bottom end of the support frame 7, a lower rocker arm 10063 fixedly mounted on the bottom end of the vertical shaft 10061, and a second turntable 10065 fixed to the lower end of the vertical bevel gear shaft 1004. A second connecting rod 10064 is hinged to the edge of the bottom end of the second turntable 10065. One end of the second connecting rod 10064 and one end of the lower rocker arm 10063 are hinged to each other. The top end of the vertical shaft 10061... A brush 10062 is fixed to the outside of the support frame 7. The lower end of the vertical bevel gear shaft 1004 drives the second turntable 10065 to rotate. Then, the rotation of the second turntable 10065 is transformed into the reciprocating swing motion of the lower rocker arm 10063 by the second connecting rod 10064. That is, the lower rocker arm 10063 drives the vertical shaft 10061 to rotate back and forth, so that the brush 10062 swings back and forth around the central axis of the vertical shaft 10061 to achieve the friction action.

[0045] Example 3, based on Example 2, by Figure 11 , Figure 12 and Figure 13 As shown, a drive shaft 1007 is rotatably mounted on the bottom end of the support 7 on the side of the vertical shaft 10061 away from the vertical center reference plane of the support 7. The lower end of the drive shaft 1007 is connected to the vertical bevel gear shaft 1004 through the pulley drive structure 1008. When the vertical bevel gear shaft 1004 rotates, it transmits rotational power to the centrifugal driven speed-increasing blower assembly 9 through the drive shaft 1007 and the pulley drive structure 1008.

[0046] The centrifugal driven speed-increasing blower assembly 9 includes a forward-inclined centrifugal fan 901 mounted on one side of the top of the support beam 8, an electric heating rod 902 mounted on the outlet end of the forward-inclined centrifugal fan 901, and a driven double-layer gear shaft 903 rotatably mounted on one side of the top of the support frame 7. The input end of the electric heating rod 902 is electrically connected to the output end of the PLC control panel 4. A speed-increasing gear pair 905 is installed between the driven double-layer gear shaft 903 and the input shaft of the forward-inclined centrifugal fan 901. One end of the surface of the transmission shaft 1007 is fixed with a driving gear 904, and the driving gear 904 and the driven double-layer gear shaft 903 mesh with each other.

[0047] When the centrifugal driven speed-increasing blower assembly 9 is working, the operator turns on the electric heating rod 902 through the PLC control panel 4, which raises the temperature at the outlet of the forward-inclined centrifugal fan 901. At this time, the drive shaft 1007 drives the driven double-layer gear shaft 903 to rotate through the drive gear 904. The driven double-layer gear shaft 903 and the input shaft of the forward-inclined centrifugal fan 901 are powered by the speed-increasing gear pair 905. That is, the forward-inclined centrifugal fan 901 works and continuously outputs air. The centrifugal design can effectively improve the wind speed and air volume, ensure the uniform distribution of hot air on the surface of the sample, and promote the stability and consistency of the temperature environment.

[0048] In this embodiment, the pre-prepared high-anti-aging hydrophilic fiber sample is first taken out from a constant temperature and humidity standard environment, and its initial state is recorded and evaluated, including measuring its original breaking strength, breaking elongation, and key hydrophilic performance indicators, thereby establishing a benchmark for performance degradation comparison. The operator opens the chamber door 3 and operates the PLC control panel 4 to start the pneumatic clamping assembly 6, so that the two pneumatic clamping assemblies 6 installed on the left and right inner walls of the chamber are in an open state. The ends of the strip or sheet-like fiber sample are placed flat in the left and right pneumatic clamping assemblies 6, ensuring that the sample is uniformly tightened and without twisting in the initial state. After clamping, the operator closes and locks the chamber door 3 to ensure the test environment is sealed, preventing ultraviolet leakage and ensuring the stability of the internal environmental conditions. The operator interacts with the PLC control panel 4, manually inputting the parameter formula for this test. This formula defines the core conditions of the entire test cycle, including the irradiation intensity of the ultraviolet lamp 5, the operating speed and mode of the chain drive unit 2, and centrifugation. The hot air temperature of the centrifugal driven speed-increasing blower assembly 9 and the duration of the entire composite test are determined. The running speed of the chain drive unit 2 is directly proportional to the wind speed of the centrifugal driven speed-increasing blower assembly 9 and the operating frequency of the lifting friction composite fatigue test assembly 10. After confirming that all parameters are correct, the staff starts the equipment. The PLC control panel 4 activates the ultraviolet lamp tube 5 and the chain drive unit 2 simultaneously according to the preset instructions. The chain drive unit 2, as the power source, transmits power to the lifting friction composite fatigue test assembly 10 at the left and right positions in the chamber, driving the actuator of the lifting friction composite fatigue test assembly 10 to apply a cyclic lifting and friction action to the fiber sample in the middle. On the other hand, the chain drive unit 2 simultaneously drives the centrifugal driven speed-increasing blower assembly 9 to work, continuously blowing the temperature-controlled hot air it generates onto the surface of the sample that is receiving ultraviolet irradiation and mechanical action. At this point, the sample begins to continuously endure the interactive composite stress test composed of ultraviolet aging, thermo-oxidative aging and mechanical fatigue, so as to realistically reproduce the complex use environment.

[0049] After the preset test cycle ends, the ultraviolet lamp 5 is turned off, the hot air stops blowing, and the mechanical movement stops. After a period of time, the staff can wait for the temperature inside the chamber to drop naturally to a safe range before opening the chamber door 3, releasing the clamping restrictions of the pneumatic clamping assembly 6 on the sample, and removing the fiber sample that has undergone rigorous testing. The sample may have shown visible color changes, surface cracks, or powdering. The staff will send these aged samples, along with the reserved original samples, to various analytical instruments for comprehensive performance termination comparison tests.

[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-aging-resistant hydrophilic fiber performance detection device, characterized in that, include; The test box (1) has doors (3) installed on both sides of the test box (1) at the lower position via hinges. The test box (1) has pneumatic clamping assemblies (6) for fixing strip fiber samples installed on both the left and right inner walls. The test box (1) has ultraviolet lamp tubes (5) installed on the top wall. The test box (1) has a support frame (7) fixed on one side of the inner wall. The support frame (7) has a support beam (8) extending along its length direction installed at the top of the support frame (7). The support beam (8) has centrifugal driven speed-increasing blower assemblies (9) installed on both sides of the top of the support beam (8). A pull-up friction composite fatigue test assembly (10) is provided. Two pull-up friction composite fatigue test assemblies (10) are respectively installed on the left and right inner walls of the test box (1). A belt drive structure (1008) for power connection is installed between the output shaft of the pull-up friction composite fatigue test assembly (10) and the input shaft of the centrifugal driven speed-increasing blower assembly (9). A chain drive unit (2) for driving the two pull-up friction composite fatigue test assemblies (10) to work synchronously is installed on the back of the test box (1). A PLC control panel (4) is installed at the upper position on the surface of the test box (1). The output end of the PLC control panel (4) is electrically connected to the chain drive unit (2), the ultraviolet lamp (5), and the input end of the centrifugal driven speed-increasing blower assembly (9). The pull-friction composite fatigue testing assembly (10) includes a bearing housing 1 (1001) and a bearing housing 2 (1002) fixed on the inner wall of one side of the test box (1), and a longitudinal bevel gear shaft (1003) and a vertical bevel gear shaft (1004) rotatably mounted inside the bearing housing 1 (1001) and the bearing housing 2 (1002), respectively. The central axis of the longitudinal bevel gear shaft (1003) and the central axis of the vertical bevel gear shaft (1004) are perpendicular to each other on the side projection plane, and the longitudinal bevel gear shaft (1003) and the vertical bevel gear shaft (1004) are respectively rotatably mounted inside the bearing housing 1 (1001) and the bearing housing 2 (1002). 004) meshing, one end of the longitudinal bevel gear shaft (1003) is fixedly connected to the drive shaft of the geared motor (203), the end of the longitudinal bevel gear shaft (1003) away from the geared motor (203) is equipped with a connecting rod type reciprocating lifting structure (1005), the lower end of the vertical bevel gear shaft (1004) is equipped with a connecting rod type reciprocating friction structure (1006), one end of the surface of the vertical bevel gear shaft (1004) drives one of the centrifugal driven speed-increasing blower assemblies (9) to work through the pulley transmission structure (1008).

2. The high-aging-resistant hydrophilic fiber performance detection equipment according to claim 1, characterized in that: The pneumatic clamping assembly (6) includes a support (601) fixed on the inner wall of one side of the test box (1), a cylinder (602) installed on the top of the support (601), and an upper pressure plate (603) fixed to the bottom of the piston rod of the cylinder (602). A lower support (605) is fixed on the inner wall of the test box (1) below the upper pressure plate (603). The input end of the cylinder (602) is electrically connected to the output end of the PLC control panel (4).

3. The high-aging-resistant hydrophilic fiber performance detection equipment according to claim 2, characterized in that: The upper pressure plate (603) has an upwardly extending guide post (604) fixed at the corner of its top edge, and the top of the guide post (604) extends through to the outside of the support (601).

4. The testing equipment for high anti-aging hydrophilic fiber properties according to claim 1, characterized in that: The chain drive unit (2) includes a chain cover (201) fixed on the back of the test box (1), a geared motor (203) installed at one end of the back of the chain cover (201), and a double sprocket transmission structure (202) installed inside the chain cover (201). The drive shaft of the geared motor (203) is used to drive one of the lifting friction composite fatigue test assemblies (10) to work. The drive shaft of the geared motor (203) drives the other lifting friction composite fatigue test assembly (10) to work through the double sprocket transmission structure (202).

5. The testing equipment for high anti-aging hydrophilic fiber properties according to claim 1, characterized in that: The linkage reciprocating lifting structure (1005) includes a T-shaped seat (10051) fixed on the inner wall of one side of the detection box (1), two guide rods (10052) fixed at the top of the T-shaped seat (10051), and a Z-shaped plate (10053) slidably mounted on one end of the surface of the two guide rods (10052). A first connecting rod (10056) is hinged to the back of the Z-shaped plate (10053). A first turntable (10055) is fixed to the end of the longitudinal bevel gear shaft (1003) away from the geared motor (203). The upper ends of the first turntable (10055) and the first connecting rod (10056) are hinged to each other. Two longitudinal beam arms (10054) are integrally formed on one side of the surface of the Z-shaped plate (10053). A gap is provided between the two longitudinal beam arms (10054).

6. The testing equipment for high anti-aging hydrophilic fiber properties according to claim 1, characterized in that: The linkage reciprocating friction structure (1006) includes a vertical shaft (10061) rotatably mounted on one side of the bottom end of the support frame (7), a lower rocker arm (10063) fixedly mounted on the bottom end of the vertical shaft (10061), and a second turntable (10065) fixed to the lower end of the vertical bevel gear shaft (1004). A second connecting rod (10064) is hinged at the edge of the bottom end of the second turntable (10065). One end of the second connecting rod (10064) and one end of the lower rocker arm (10063) are hinged to each other. The top end of the vertical shaft (10061) extends through to the outside of the support frame (7) and is fixed with a brush (10062).

7. The testing equipment for high anti-aging hydrophilic fiber properties according to claim 6, characterized in that: The vertical shaft (10061) is located on the side of the support frame (7) away from the vertical center reference plane. The bottom end of the support frame (7) is rotatably mounted with a drive shaft (1007). The lower end of the drive shaft (1007) is connected to the vertical bevel gear shaft (1004) through a pulley drive structure (1008).

8. The testing equipment for high anti-aging hydrophilic fiber properties according to claim 7, characterized in that: The centrifugal driven speed-increasing blower assembly (9) includes a forward-inclined centrifugal fan (901) installed on one side of the top of the support beam (8), an electric heating rod (902) installed on the outlet end of the forward-inclined centrifugal fan (901), and a driven double-layer gear shaft (903) rotatably installed on one side of the top of the support frame (7). The input end of the electric heating rod (902) is electrically connected to the output end of the PLC control panel (4).

9. The testing equipment for high anti-aging hydrophilic fiber properties according to claim 8, characterized in that: A speed-increasing gear pair (905) is installed between the driven double-layer gear shaft (903) and the input shaft of the forward-inclined centrifugal fan (901). A driving gear (904) is fixed at one end of the surface of the transmission shaft (1007). The driving gear (904) and the driven double-layer gear shaft (903) mesh with each other.

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