A device and method for testing textile fabrics

Abstract

This invention discloses a device and method for testing textile fabrics, including two gantry frames. A primary tensioning device and a secondary tensioning device, symmetrically arranged, are installed between the two gantry frames. These devices are used to tension and level the textile fabric sample to be tested. Longitudinal beams for sliding in the X-axis direction are installed on the outer walls of the two gantry frames on opposite sides. This invention ensures the smooth movement of the longitudinal beams and sprocket-driven rotary humidification module along the length of the textile fabric sample, guaranteeing the continuity of the humidification and testing process. During humidification, it maintains a uniform distribution of moisture in all parts of the fabric. Furthermore, the intermittent point-contact moisture detection module detects moisture content by touching each point on the fabric sample, avoiding data omissions or errors caused by improper positioning or inaccurate human operation in traditional testing methods.

Description

Technical Field

[0001] This invention relates to the field of textile fabric performance testing technology, specifically to a device and method for testing textile fabrics. Background Technology

[0002] Fabric moisture content testing devices play a crucial role in the textile industry, primarily used to detect and evaluate the moisture content and absorbency of fabrics, helping to ensure fabric quality and functionality. Their applications extend beyond quality control during production to include in-depth analysis of fabric absorbency, comfort, and dyeing uniformity. By accurately determining moisture content, companies can effectively improve fabric performance, such as enhancing hygroscopicity and antibacterial properties, to meet diverse product requirements. Fabric moisture content testing devices typically consist of several parts, including a sample platform, humidification system, moisture measuring instrument, control and display system, and data processing system, ensuring the accuracy and stability of the testing process. Different moisture measurement methods, such as infrared, moisture, resistivity, and microwave technologies, rely on physical principles to accurately measure the moisture content in fabrics.

[0003] As disclosed in the patent announcement CN222232280U, a device for testing the water absorption performance of polyester fabric mainly includes: a testing chamber with three testing chambers; a fixing mechanism for fixing the polyester fabric to be tested, which includes: a testing plate for placing the polyester fabric; an adjusting handle for rotating the testing plate; and a testing mechanism for testing the water absorption of the polyester fabric, which includes a dripping funnel for storing the testing liquid. Through the coordinated use of the testing chambers, arc-shaped groove, drain pipe, dripping funnel, testing plate, adjusting groove, cylinder, spring, pull rod, and pressure plate, the device can test the water absorption of polyester fabric at different inclination angles. Existing fabric moisture content testing technologies and devices operate in a similar manner, namely, replenishing the textile fabric with moisture to reach the required moisture level for testing. The method involves determining the moisture content of fabrics under specific conditions using a testing device. However, in actual testing, large-format textile samples are often used, and humidification is applied at different locations on the samples. This point-to-point humidification method can lead to excessive localized humidity, resulting in excessive moisture accumulation in some areas while other areas remain dry. This localized humidification directly causes uneven moisture distribution across the fabric, affecting the accuracy of moisture content measurement. Furthermore, measuring moisture content requires staff to constantly move around the textile sample to obtain the moisture content at specific locations. Due to limitations in the instrument's structure, the moisture content in the central area of ​​the sample is difficult to obtain. In other words, this testing method is not only time-consuming and labor-intensive but also struggles to ensure comprehensive and uniform data collection, impacting the reliability of the overall test results for the textile fabric. Summary of the Invention

[0004] The purpose of this invention is to provide an apparatus and method for testing textile fabrics. A primary tensioning device and a secondary tensioning device flatten the textile fabric sample to be tested for water absorption performance. A dual-axis geared motor and a symmetrical geared travel module move a longitudinal beam, a sprocket-driven rotary humidification module, and an intermittent point-contact moisture detection module along the length of the textile fabric sample. During the positive X-axis movement, the sprocket-driven rotary humidification module performs large-scale uniform humidification above the textile fabric sample. After humidification, the driven rotary humidification module stops working. The dual-axis geared motor and the symmetrical geared travel module then move the longitudinal beam, sprocket-driven rotary humidification module, and intermittent point-contact moisture detection module along the X-axis. During this movement, the intermittent point-contact moisture detection module detects the moisture content of the textile fabric sample to evaluate its water absorption performance, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for detecting textile fabrics, comprising:

[0006] The system includes two gantry frames, with a primary tensioning device and a secondary tensioning device symmetrically arranged between them. These devices are used to tension and level the textile fabric sample to be tested. Longitudinal beams for sliding in the X-axis direction are installed on the outer walls of the two gantry frames on opposite sides. A symmetrical gear-driven module for driving the longitudinal beams to slide in the X-axis direction is installed on one outer wall of each longitudinal beam. A dual-axis reduction motor for driving the symmetrical gear-driven module is also installed on one outer wall of each longitudinal beam.

[0007] The support consists of two symmetrically fixed brackets on the outer wall of the longitudinal beam on one side of the symmetrical gear traveling module. A sprocket-driven rotary humidification module for humidifying textile fabric samples is installed between the two brackets. The sprocket-driven rotary humidification module and the symmetrical gear traveling module are connected by power. An intermittent point-contact moisture detection module is also installed on the side of the two brackets away from the sprocket-driven rotary humidification module. A belt drive structure for maintaining power connection is provided between the intermittent point-contact moisture detection module and the sprocket-driven rotary humidification module. A PLC control panel is installed on one side of the outer wall of one of the gantry frames. The output terminal of the PLC control panel is electrically connected to the input terminal of the dual-axis geared motor.

[0008] Preferably, the main tensioning device and the secondary tensioning device have the same structure. The main tensioning device includes a roller frame disposed between the two gantry frames, two symmetrical lower support rollers rotatably mounted on the top of the roller frame, and a pressure roller rotatably mounted on the top of the roller frame above the two lower support rollers. The outer wall of the pressure roller is provided with a rectangular groove extending towards the central axis of the pressure roller. The rectangular groove is used for the side of the textile fabric sample to be embedded.

[0009] Preferably, the pressing device further includes bearing seats slidably mounted on the left and right outer walls of the roller frame and a threaded shaft threadedly mounted on the top of the roller frame. The bottom end of the threaded shaft is rotatably connected to the top end of the bearing seat. A second geared motor for driving the pressure roller to rotate is mounted on one side outer wall of one of the bearing seats. The input end of the second geared motor is electrically connected to the output end of the PLC control panel.

[0010] Preferably, the symmetrical gear traveling module includes a longitudinal shaft rotatably mounted on the outer wall of one side of the longitudinal beam, helical gears fixed at both ends of the longitudinal shaft, and two helical racks fixed on the outer walls of opposite sides of the gantry frame. The helical racks and helical gears cooperate with each other. The extension direction of the central axis of the longitudinal shaft is parallel to the extension direction of the central axis of the lower support roller and the pressure roller. The output shaft of the dual-axis reduction motor is fixedly connected to the longitudinal shaft through a coupling.

[0011] Preferably, a guide rail is fixed on the outer wall of the gantry frame near the longitudinal beam, and end plates are fixed at both ends of the longitudinal beam. A slide table for sliding cooperation with the guide rail is fixed on the outer wall of the end plate away from the longitudinal beam. Two symmetrical rubber stops are installed on the outer wall of one side of the gantry frame to block the end plates.

[0012] Preferably, the sprocket-driven rotary humidification module includes a first drive shaft rotatably mounted on the outer wall of one side of one of the brackets, a liquid storage tube fixed at one end of the first drive shaft, and a rotary joint installed at the end of the liquid storage tube away from the first drive shaft. A sprocket drive structure is installed between the first drive shaft and the longitudinal shaft. The longitudinal shaft drives the first drive shaft and the liquid storage tube to rotate through the sprocket drive structure. A plurality of nozzles are installed on the outer wall of the liquid storage tube in a straight line with equal spacing.

[0013] Preferably, a straight groove-shaped hollow part is provided on one side of the outer wall of the gantry frame, which is used to allow the rotary joint to slide in the X-axis direction when connected to an external water pipe.

[0014] Preferably, the intermittent contact moisture detection module includes a second drive shaft rotatably mounted on one side of the outer wall of one of the brackets, a cam fixed at one end of the surface of the second drive shaft, and a rotating shaft rotatably mounted on the top of the bracket. The central axis of the rotating shaft is parallel to the central axis of the second drive shaft. A swing arm is fixed to one end of the rotating shaft. A roller for contacting the outer wall of the cam is rotatably mounted on the side of the swing arm near the second drive shaft. A tension spring is mounted on one side of the outer wall of the bracket. One end of the tension spring is fixedly connected to one side of the outer wall of the swing arm. An H-shaped hanger is fixed to the other end of the rotating shaft. At least two fabric moisture meters are mounted at the bottom end of the H-shaped hanger. The second drive shaft and the first drive shaft maintain power transmission through a pulley transmission structure.

[0015] Preferably, the H-shaped hanger consists of diagonal arms fixed at both ends of the rotating shaft surface and an I-beam bolted between the two diagonal arms, and the fabric moisture meter is installed on one outer wall of the I-beam.

[0016] The present invention also provides a method for detecting textile fabrics, using the apparatus for detecting textile fabrics as described above, comprising the following steps:

[0017] S101: Staff prepare the textile fabric sample to be tested, ensuring that the sample is clean and free of debris, and cut it to the specified size according to the test standard before testing. Then, staff check the functions of the device to ensure that all components, including the main tensioning device, secondary tensioning device, dual-shaft reduction motor, symmetrical gear walking module, sprocket driven rotary humidification module, and intermittent point contact moisture detection module, are in normal working condition. Subsequently, the main tensioning device and secondary tensioning device are used to flatten the textile fabric sample. The secondary tensioning device and main tensioning device provide a certain tension in the vertical direction to ensure that the fabric is flat on the horizontal surface.

[0018] S102: After the fabric is flattened, the staff starts the symmetrical gear walking module and the dual-axis reduction motor through the PLC control panel. This causes the longitudinal beam and sprocket driven rotary humidification module and the intermittent point contact moisture detection module to move smoothly along the length of the textile fabric sample, that is, in the positive X-axis direction. During the movement, the sprocket driven rotary humidification module receives the rotational power from the dual-axis reduction motor. The sprocket driven rotary humidification module performs large-area uniform wetting on the fabric to avoid local accumulation of moisture.

[0019] S103: After the symmetrical gear walking module, dual-axis reduction motor, sprocket-driven rotary humidification module, and intermittent point-contact moisture detection module move to the end position of the gantry, humidification is completed. The operator shuts off the water supply to the sprocket-driven rotary humidification module. Then, the symmetrical gear walking module, dual-axis reduction motor drive the longitudinal beam, sprocket-driven rotary humidification module, and intermittent point-contact moisture detection module to move in the opposite direction of the X-axis. During the driving movement, the intermittent point-contact moisture detection module detects the textile fabric in an intermittent manner, touching different positions on the fabric each time and recording the moisture content data at that position until the entire fabric area has been detected.

[0020] S104: After the intermittent contact moisture detection module completes data collection, staff can view the data analysis results in real time through the intermittent contact moisture detection module. The detection results will determine whether the water absorption performance of the textile fabric meets the preset standard based on the moisture content of the sample, and provide guidance for the subsequent processing of the fabric.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: This device and method for detecting textile fabrics utilizes a structure comprising a primary tensioning device, a secondary tensioning device, a longitudinal beam, a sprocket-driven rotary humidification module, and an intermittent point-contact moisture detection module, among other mutually cooperating components. The primary and secondary tensioning devices allow the textile fabric sample to be tested to be flattened. This flattening process ensures that moisture penetrates the fabric more evenly to each part, guaranteeing the accuracy of subsequent testing. Moisture is evenly distributed throughout the fabric, whether at the edges or in the central area, resulting in more representative moisture content data. Furthermore, the dual-axis reduction motor and symmetrical gear travel module enable stable movement of the equipment, providing precise mechanical support. This travel module ensures that the longitudinal beam and sprocket-driven rotary humidification module move smoothly along the length of the textile fabric sample, guaranteeing the continuity of the humidification and detection processes. The smooth movement avoids uneven moisture distribution caused by vibration or error, improving the stability and reliability of the device. During humidification, unlike traditional fixed-point humidification methods, the sprocket-driven rotary humidification module ensures uniform moisture distribution across the fabric through rotation and vertical movement. This avoids situations where some areas are excessively moist while others are insufficiently moist. This not only improves the accuracy of fabric absorbency testing but also reduces errors caused by uneven moisture distribution, making the final test results more reliable. Furthermore, the intermittent point-contact moisture detection module detects moisture content by touching each point on the fabric sample, avoiding data omissions or errors caused by improper positioning or inaccurate human operation in traditional testing methods. This effectively reduces reliance on human intervention, thereby lowering the risk of human error and enabling a more accurate and reliable assessment of the absorbency of textile fabrics. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0024] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 3 ;

[0026] Figure 5 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the fastening device according to Embodiment 2 of the present invention;

[0028] Figure 7 This is a three-dimensional cross-sectional structural diagram of the clamping device according to Embodiment 2 of the present invention;

[0029] Figure 8 For the present invention Figure 6 Enlarged structural diagram at point A in the middle;

[0030] Figure 9 This is a three-dimensional structural diagram of the sprocket-driven rotary humidification module according to Embodiment 3 of the present invention;

[0031] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point B;

[0032] Figure 11 This is a schematic diagram of the main structure of the intermittent touch-type moisture detection module according to Embodiment 3 of the present invention;

[0033] Figure 12 This is a three-dimensional structural diagram of the intermittent point-contact moisture detection module according to Embodiment 3 of the present invention.

[0034] In the diagram: 1. Gantry frame; 101. Straight groove hollow section; 102. Guide rail; 103. Slide table; 104. Rubber stop column; 2. Longitudinal beam; 201. End plate; 3. Main tensioning device; 301. Roller frame; 302. Lower support roller; 303. Bearing seat; 304. Threaded shaft; 305. Pressure roller; 306. Rectangular groove; 307. Second geared motor; 4. Secondary tensioning device; 5. Symmetrical gear travel module; 501. Longitudinal shaft; 502. Helical rack; 503. Helical gear; 6. Dual-shaft reduction 7. High-speed motor; 8. Bracket; 9. Sprocket-driven rotary humidification module; 10. First drive shaft; 11. Sprocket drive structure; 12. Liquid storage tube; 13. Nozzle; 14. Rotary joint; 15. Intermittent contact moisture detection module; 16. Rotary shaft; 17. Second drive shaft; 18. Return swing arm; 19. Roller; 10. Protruding plate; 11. H-type hanger; 12. Fabric moisture meter; 13. Tension spring; 14. Belt drive structure; 15. PLC control panel. Detailed Implementation

[0035] 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.

[0036] Example 1, by Figures 1 to 5 The present invention includes a gantry frame 1, and two gantry frames 1 are provided. A primary tensioning device 3 and a secondary tensioning device 4 are installed between the two gantry frames 1 in a symmetrical structure. The primary tensioning device 3 and the secondary tensioning device 4 are used to tension and flatten the textile fabric sample to be tested. A longitudinal beam 2 for sliding in the X-axis direction is installed on the outer wall of the two gantry frames 1 on opposite sides. A symmetrical gear traveling module 5 for driving the longitudinal beam 2 to slide in the X-axis direction is provided on one side of the outer wall of the longitudinal beam 2. A dual-axis reduction motor 6 for driving the symmetrical gear traveling module 5 is installed on one side of the outer wall of the longitudinal beam 2.

[0037] The brackets 7 are symmetrically fixed on the outer wall of the longitudinal beam 2 on one side of the symmetrical gear walking module 5. A sprocket-driven rotary humidification module 8 for humidifying textile fabric samples is set between the two brackets 7. The sprocket-driven rotary humidification module 8 and the symmetrical gear walking module 5 are connected by power. An intermittent point contact moisture detection module 9 is also set on the side of the two brackets away from the sprocket-driven rotary humidification module 8. A belt drive structure 10 for maintaining power connection is set between the intermittent point contact moisture detection module 9 and the sprocket-driven rotary humidification module 8. A PLC control panel 11 is installed on one side of the outer wall of one of the gantry frames 1. The output terminal of the PLC control panel 11 is electrically connected to the input terminal of the dual-axis geared motor 6.

[0038] This embodiment of a textile fabric testing method, using the aforementioned textile fabric testing apparatus, includes the following steps:

[0039] S101: The staff prepares the textile sample to be tested, ensuring that the sample is clean and free of debris, and cuts it to the specified size according to the test standard before testing. Then, the staff checks the functions of the device to ensure that all components, including the main tensioning device 3, the secondary tensioning device 4, the dual-shaft reduction motor 6, the symmetrical gear walking module 5, the sprocket driven rotary humidification module 8, and the intermittent point contact moisture detection module 9, are in normal working condition. Then, the main tensioning device 3 and the secondary tensioning device 4 are used to flatten the textile sample. The secondary tensioning device 4 and the main tensioning device 3 make the sample have a certain tension in the vertical direction, ensuring that the fabric is flat on the horizontal surface.

[0040] S102: After the fabric is flattened, the staff starts the symmetrical gear walking module 5 and the dual-axis reduction motor 6 through the PLC control panel 11, so that the longitudinal beam 2, the sprocket driven rotary humidification module 8, and the intermittent point contact moisture detection module 9 move smoothly along the length of the textile fabric sample, that is, in the positive X-axis direction. During the movement, the sprocket driven rotary humidification module 8 receives the rotational power from the dual-axis reduction motor 6. The sprocket driven rotary humidification module 8 performs large-area uniform wetting on the fabric to avoid local accumulation of moisture.

[0041] S103: When the symmetrical gear walking module 5, dual-axis reduction motor 6, sprocket driven rotary humidification module 8, and intermittent point contact moisture detection module 9 move to the end position of the gantry 1, humidification is completed. The staff turns off the water supply to the sprocket driven rotary humidification module 8. Then, the symmetrical gear walking module 5 and dual-axis reduction motor 6 drive the longitudinal beam 2, sprocket driven rotary humidification module 8, and intermittent point contact moisture detection module 9 to move in the opposite direction of the X-axis. During the driving movement, the intermittent point contact moisture detection module 9 detects the textile fabric in an intermittent manner, touching different positions on the fabric each time and recording the moisture content data at that position until the entire fabric area is detected.

[0042] S104: After the intermittent point-contact moisture detection module 9 completes data acquisition, the staff can view the data analysis results in real time through the intermittent point-contact moisture detection module 9. The detection results will determine whether the water absorption performance of the textile fabric meets the preset standard based on the moisture content of the sample, and provide guidance for the subsequent processing of the fabric.

[0043] Example 2, based on Example 1, is... Figure 6 , Figure 7 and Figure 8 It is given that the main tensioning device 3 and the auxiliary tensioning device 4 have the same structure. The main tensioning device 3 includes a roller frame 301 set between two gantry frames 1, two symmetrical lower support rollers 302 rotatably mounted on the top of the roller frame 301, and a pressure roller 305 rotatably mounted on the top of the roller frame 301 above the two lower support rollers 302. The outer wall of the pressure roller 305 is provided with a rectangular groove 306 extending towards the central axis of the pressure roller 305. The rectangular groove 306 is used for the side of the textile fabric sample to be embedded.

[0044] The tensioning device 3 also includes bearing seats 303 slidably mounted on the left and right outer walls of the roller frame 301, and a threaded shaft 304 threadedly mounted on the top of the roller frame 301. The bottom end of the threaded shaft 304 is rotatably connected to the top end of the bearing seat 303. A second reduction motor 307 for driving the pressure roller 305 to rotate is mounted on one side of the outer wall of one of the bearing seats 303. The input end of the second reduction motor 307 is electrically connected to the output end of the PLC control panel 11. When the operator tensions and straightens the cut textile fabric sample, the operator... The operator inserts the end edge of the textile fabric sample into the rectangular groove 306 of the pressure roller 305, and uses the second reduction motor 307 to drive the pressure roller 305 to rotate, so that the textile fabric sample is wound up by the pressure roller 305. It can be wound up three to five times. Then, the threaded shaft 304 is manually rotated, and the threaded shaft 304 drives the bearing seat 303, the pressure roller 305 and the second reduction motor 307 to move down until the pressure roller 305 comes into contact with the two lower support rollers 302. At this time, the textile fabric sample is pressed and stabilized by the pressure roller 305 and the lower support rollers 302.

[0045] The other side of the fabric is also rolled up and pressed by the secondary tensioning device 4 in the same way until the fabric is tensioned and flattened. The primary tensioning device 3 and the secondary tensioning device 4 keep the fabric flat by providing uniform tension and avoid uneven distribution of moisture. In addition, the tensioning device also effectively prevents the fabric from moving due to device vibration or external interference during the testing process. Through precise tensioning, the fabric is kept in a stable state, which is convenient for subsequent testing operations.

[0046] The symmetrical gear traveling module 5 includes a longitudinal shaft 501 rotatably mounted on one side of the outer wall of the longitudinal beam 2, helical gears 503 fixed at both ends of the longitudinal shaft 501, and helical racks 502 fixed on the opposite outer walls of the two gantry frames 1. The helical racks 502 and helical gears 503 cooperate with each other. The extension direction of the central axis of the longitudinal shaft 501 is parallel to the extension direction of the central axis of the lower support roller 302 and the pressure roller 305. The output shaft of the dual-axis reduction motor 6 is fixedly connected to the longitudinal shaft 501 through a coupling. When the symmetrical gear traveling module 5 is working, the dual-axis reduction motor 6 drives the longitudinal shaft 501 to advance. As the longitudinal shaft 501 rotates, since the helical gears 503 at both ends of the longitudinal shaft 501 mesh with the helical rack 502 on the outer wall of the gantry frame 1, the dual-shaft reduction motor 6 will drive the longitudinal beam 2, end plate 201, sprocket-driven rotary humidification module 8, and intermittent point-contact moisture detection module 9 to move in the gantry frame 1 and the length extension direction of the fabric through the helical gears 503 and helical rack 502. This allows the sprocket-driven rotary humidification module 8 and intermittent point-contact moisture detection module 9 to operate and function above the fabric, ensuring that they can evenly cover the entire fabric area.

[0047] The gantry frame 1 provides stable support throughout the entire device, serving as the foundation for other components. It supports various functional modules and ensures that they do not shift or shake during operation, maintaining the stability of the device. A guide rail 102 is fixed on the outer wall of the gantry frame 1 near the longitudinal beam 2. End plates 201 are fixed at both ends of the longitudinal beam 2. A slide table 103 for sliding engagement with the guide rail 102 is fixed on the outer wall of the end plate 201 away from the longitudinal beam 2. Two symmetrical rubber stops 104 are installed on one outer wall of the gantry frame 1. The rubber stops 104 are used to block the end plates 201. During the process of the longitudinal beam 2 and the end plates 201 being driven by the symmetrical gear travel module 5, the end plates 201 slide with the guide rail 102 through the slide table 103, while the rubber stops 104 are used to prevent the end plates 201 and the longitudinal beam 2 from coming off between the two gantry frames 1, thereby increasing the operational stability of the device.

[0048] Example 3, based on Example 2, by Figure 9 , Figure 10 , Figure 11 and Figure 12 The sprocket-driven rotary humidification module 8 includes a first drive shaft 801 rotatably mounted on the outer wall of one side of one of the brackets 7, a liquid storage tube 803 fixed at one end of the first drive shaft 801, and a rotary joint 805 installed at the end of the liquid storage tube 803 away from the first drive shaft 801. A sprocket drive structure 802 is installed between the first drive shaft 801 and the longitudinal shaft 501. The longitudinal shaft 501 drives the first drive shaft 801 and the liquid storage tube 803 to rotate through the sprocket drive structure 802. Several nozzles 804 are installed on the outer wall of the liquid storage tube 803 in a straight line with equal spacing.

[0049] A straight groove type hollow part 101 is provided on one side of the outer wall of the gantry frame 1. The straight groove type hollow part 101 is used to allow the rotary joint 805 to slide in the X-axis direction when it is connected to the external water pipe. The operator connects the external water supply hose to the rotary joint 805. The rotary joint 805 allows the liquid storage pipe 803 to maintain a passage with the external water supply end when it is driven to rotate.

[0050] The longitudinal axis 501 drives the liquid storage tube 803 to rotate through the sprocket transmission structure 802. Then, the nozzle 804 revolves around the central axis of the liquid storage tube 803. Compared with the traditional fixed-point humidification method, the sprocket driven rotary humidification module 8 can provide a more uniform moisture distribution by rotating, avoiding excessive accumulation of moisture in a certain position, ensuring that all areas of the fabric are evenly moistened, and improving the accuracy of the test.

[0051] The intermittent contact moisture detection module 9 includes a second drive shaft 902 rotatably mounted on one side of the outer wall of one of the brackets 7, a cam 905 fixed to one end of the surface of the second drive shaft 902, and a rotating shaft 901 rotatably mounted on the top of the bracket 7. The central axis of the rotating shaft 901 is parallel to the central axis of the second drive shaft 902. A swing arm 903 is fixed to one end of the rotating shaft 901. A roller 904 for contacting the outer wall of the swing arm 903 near the second drive shaft 902 is rotatably mounted on the outer wall of the swing arm 903. A tension spring 908 is mounted on one side of the outer wall of the bracket 7. One end of the tension spring 908 is connected to the swing arm. One side of the outer wall of 903 is fixedly connected, and the other end of the rotating shaft 901 is fixed with an H-type hanger 906. At least two fabric moisture meters 907 are installed at the bottom of the H-type hanger 906. The H-type hanger 906 consists of inclined arms fixed at both ends of the surface of the rotating shaft 901 and an I-beam bolted between the two inclined arms. The fabric moisture meters 907 are installed on one side of the outer wall of the I-beam. During the working stage of the intermittent point contact moisture detection module 9, the first drive shaft 801 and the second drive shaft 902 are kept in power engagement through the pulley drive structure 10, and the second drive shaft 902 drives the cam 905 to rotate.

[0052] The second drive shaft 902 and the first drive shaft 801 maintain power transmission through the pulley transmission structure 10. The cam 905 continuously contacts the roller 904. When the protrusion of the cam 905 contacts the roller 904, the cam 905 will force the roller 904 and the swing arm 903 to swing about the pivot shaft 901 as the central axis and drive the pivot shaft 901 to rotate. When the protrusion of the cam 905 separates from the roller 904, the tension of the tension spring 908 will cause the swing arm 903 and the pivot shaft 901 to return to their original positions. In this process, the pivot shaft 901 reciprocates to drive the H-shaped hanger 906 to swing. When the pivot shaft 901 drives the H-shaped hanger 906 to swing downward, the fabric moisture meter 907 will contact the fabric to detect the fabric moisture content. The point-contact method is used for point-by-point detection, which effectively avoids human error or deviations that may occur in other traditional methods. At the same time, through multi-point detection, the staff can have a comprehensive understanding of the moisture distribution of the fabric.

[0053] In this embodiment, the operator first prepares the textile sample to be tested, ensuring it is clean and free of impurities. Before testing, the sample must be cut to the specified size according to the testing standards. Then, the operator checks the functions of the device, ensuring that all components, including the main tensioning device 3, secondary tensioning device 4, dual-axis reduction motor 6, symmetrical gear travel module 5, sprocket-driven rotary humidification module 8, and intermittent point-contact moisture detection module 9, are in normal working condition. The PLC control panel 11 is then configured to ensure that all components start normally and execute correctly during the testing process. After the device is prepared, the operator uses the main tensioning device 3 and secondary tensioning device 4 to flatten the textile sample. 4. The tensioning device 3 applies tension to the sample in the vertical direction, ensuring the fabric is flat on the horizontal plane and preventing wrinkles or unevenness during moisture detection. After the fabric is flattened, the operator starts the symmetrical gear-driven module 5 and the dual-axis reduction motor 6 via the PLC control panel 11. This causes the longitudinal beam 2, the sprocket-driven rotary humidification module 8, and the intermittent point-contact moisture detection module 9 to move smoothly along the length of the textile sample, i.e., in the positive X-axis direction. During this process, the dual-axis reduction motor 6 and the symmetrical gear-driven module 5 control the speed and direction of movement to ensure stability throughout the humidification process and avoid vibration or errors caused by movement. The uneven moisture distribution caused by the humidification module is precisely adjusted by the staff via the PLC control panel 11 to ensure that the humidification module stays at the required position for a sufficient time to provide uniform humidification to the sample. The sprocket-driven rotary humidification module 8 receives rotational power from the dual-axis geared motor 6. Unlike traditional single-point humidification, this module's design allows for large-scale uniform humidification of the fabric, avoiding localized moisture accumulation. Once the symmetrical gear-driven module 5, dual-axis geared motor 6, sprocket-driven rotary humidification module 8, and intermittent point-contact moisture detection module 9 have moved to the end position of the gantry 1, humidification is complete, and the staff shuts off the water supply to the sprocket-driven rotary humidification module 8. Subsequently, the longitudinal beam 2, the sprocket-driven rotary humidification module 8, and the intermittent point-contact moisture detection module 9 are driven to move in the opposite direction of the X-axis through the symmetrical gear walking module 5, the dual-axis reduction motor 6, and the symmetrical gear walking module 5, the sprocket-driven rotary humidification module 8, and the pulley transmission structure 10, so that the intermittent point-contact moisture detection module 9 obtains working power. That is, during the process of being driven to move, the intermittent point-contact moisture detection module 9 performs detection on the textile fabric in an intermittent manner, touching different positions on the fabric each time and recording the moisture content data at that position until the entire fabric area is detected.After the intermittent contact moisture detection module 9 completes data acquisition, staff can view the data analysis results in real time through the module. The results, based on the sample's moisture content, determine whether the textile fabric's absorbency meets preset standards and provide guidance for subsequent fabric processing. After testing, staff turn off the equipment, reset all components, and clean the testing area and equipment to ensure it is in a clean state for future use.

[0054] 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.

[0055] 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 device for testing textile fabrics, characterized in that, include: A gantry frame (1) is provided in two. A main tensioning device (3) and a secondary tensioning device (4) are installed between the two gantry frames (1) in a symmetrical structure. The main tensioning device (3) and the secondary tensioning device (4) are used to tension and flatten the textile fabric sample to be tested. A longitudinal beam (2) for sliding in the X-axis direction is installed on the outer wall of the opposite side of the two gantry frames (1). A symmetrical gear traveling module (5) for driving the longitudinal beam (2) to slide in the X-axis direction is provided on one side of the outer wall of the longitudinal beam (2). A dual-axis reduction motor (6) for driving the symmetrical gear traveling module (5) is installed on one side of the outer wall of the longitudinal beam (2). The brackets (7) are symmetrically fixed on the outer wall of the longitudinal beam (2) on one side of the symmetrical gear walking module (5). A sprocket-driven rotary humidification module (8) for humidifying textile fabric samples is provided between the two brackets (7). The sprocket-driven rotary humidification module (8) and the symmetrical gear walking module (5) are connected by power. An intermittent point contact moisture detection module (9) is also provided on the side of the two brackets (7) away from the sprocket-driven rotary humidification module (8). A belt drive structure (10) for maintaining power connection is provided between the intermittent point contact moisture detection module (9) and the sprocket-driven rotary humidification module (8). A PLC control panel (11) is installed on one side of the outer wall of one of the gantry frames (1). The output end of the PLC control panel (11) is electrically connected to the input end of the dual-axis reduction motor (6). The main tensioning device (3) and the secondary tensioning device (4) have the same structure. The main tensioning device (3) includes a roller frame (301) set between the two gantry frames (1), two symmetrical lower support rollers (302) rotatably installed on the top of the roller frame (301), and a pressure roller (305) rotatably installed on the top of the roller frame (301) above the two lower support rollers (302). The outer wall of the pressure roller (305) is provided with a rectangular groove (306) extending towards the central axis of the pressure roller (305). The rectangular groove (306) is used for the side of the textile fabric sample to be embedded. The symmetrical gear walking module (5) includes a longitudinal shaft (501) rotatably mounted on the outer wall of one side of the longitudinal beam (2), helical gears (503) fixed at both ends of the longitudinal shaft (501), and helical racks (502) fixed on the outer walls of the opposite sides of the two gantry frames (1). The helical racks (502) and helical gears (503) cooperate with each other. The extension direction of the central axis of the longitudinal shaft (501) is parallel to the extension direction of the central axis of the lower support roller (302) and the pressure roller (305). The output shaft of the dual-axis reduction motor (6) is fixedly connected to the longitudinal shaft (501) through a coupling. The sprocket-driven rotary humidification module (8) includes a first drive shaft (801) rotatably mounted on the outer wall of one of the brackets (7), a liquid storage tube (803) fixed at one end of the first drive shaft (801), and a rotary joint (805) mounted on the end of the liquid storage tube (803) away from the first drive shaft (801). A sprocket drive structure (802) is installed between the first drive shaft (801) and the longitudinal shaft (501). The longitudinal shaft (501) drives the first drive shaft (801) and the liquid storage tube (803) to rotate through the sprocket drive structure (802). A plurality of nozzles (804) are installed on the outer wall of the liquid storage tube (803) in a straight line with equal spacing.

2. The device for testing textile fabrics according to claim 1, characterized in that: The tightening device (3) further includes bearing seats (303) slidably mounted on the left and right outer walls of the roller frame (301) and a threaded shaft (304) threadedly mounted on the top of the roller frame (301). The bottom end of the threaded shaft (304) is rotatably connected to the top end of the bearing seat (303). A second geared motor (307) for driving the pressure roller (305) to rotate is mounted on one side outer wall of one of the bearing seats (303). The input end of the second geared motor (307) is electrically connected to the output end of the PLC control panel (11).

3. The device for testing textile fabrics according to claim 1, characterized in that: A guide rail (102) is fixed on the outer wall of the gantry frame (1) near the longitudinal beam (2). Both ends of the longitudinal beam (2) are fixed with end plates (201). A slide table (103) for sliding cooperation with the guide rail (102) is fixed on the outer wall of the end plate (201) away from the longitudinal beam (2). Two symmetrical rubber stops (104) are installed on the outer wall of the gantry frame (1). The rubber stops (104) are used to block the end plate (201).

4. The device for testing textile fabrics according to claim 1, characterized in that: A straight groove-shaped hollow part (101) is provided on one side of the outer wall of the gantry frame (1). The straight groove-shaped hollow part (101) is used to allow the rotary joint (805) to slide in the X-axis direction when it is connected to the external water pipe.

5. The device for testing textile fabrics according to claim 1, characterized in that: The intermittent contact moisture detection module (9) includes a second drive shaft (902) rotatably mounted on the outer wall of one of the brackets (7), a cam (905) fixed at one end of the surface of the second drive shaft (902), and a rotating shaft (901) rotatably mounted on the top of the bracket (7). The central axis of the rotating shaft (901) is parallel to the central axis of the second drive shaft (902). A swing arm (903) is fixed at one end of the rotating shaft (901). A swing arm (903) is rotatably mounted on the outer wall of the swing arm (903) near the second drive shaft (902). Rollers (904) are used to contact the outer wall of the cam (905). A tension spring (908) is installed on one side of the outer wall of the bracket (7). One end of the tension spring (908) is fixedly connected to one side of the outer wall of the swing arm (903). An H-shaped hanger (906) is fixed to the other end of the rotating shaft (901). At least two fabric moisture meters (907) are installed at the bottom of the H-shaped hanger (906). The second drive shaft (902) and the first drive shaft (801) maintain power transmission through a pulley transmission structure (10).

6. The device for testing textile fabrics according to claim 5, characterized in that: The H-type hanger (906) consists of inclined arms fixed at both ends of the surface of the rotating shaft (901) and an I-beam bolted between the two inclined arms. The fabric moisture meter (907) is installed on one side of the outer wall of the I-beam.

7. A method for testing textile fabrics, comprising the apparatus for testing textile fabrics as described in any one of claims 1-6, characterized in that: Includes the following steps: S101: The staff prepares the textile fabric sample to be tested, ensuring that the sample is clean and free of debris, and cuts it to the specified size according to the test standard before testing. Then, the staff checks the functions of the device to ensure that all components, including the main tensioning device (3), the secondary tensioning device (4), the dual-shaft reduction motor (6), the symmetrical gear walking module (5), the sprocket driven rotary humidification module (8), and the intermittent point contact moisture detection module (9), are in normal working condition. Then, the main tensioning device (3) and the secondary tensioning device (4) are used to flatten the textile fabric sample. The secondary tensioning device (4) and the main tensioning device (3) make the sample have a certain tension in the vertical direction, ensuring that the fabric is flat on the horizontal surface. S102: After the fabric is flattened, the staff starts the symmetrical gear walking module (5) and the dual-axis reduction motor (6) through the PLC control panel (11) to make the longitudinal beam (2), the sprocket driven rotary humidification module (8), and the intermittent point contact moisture detection module (9) move smoothly along the length direction of the textile fabric sample, that is, in the positive direction of the X-axis. During the movement, the sprocket driven rotary humidification module (8) receives the rotational power from the dual-axis reduction motor (6). The sprocket driven rotary humidification module (8) performs large-scale uniform wetting on the fabric to avoid local accumulation of moisture. S103: When the symmetrical gear walking module (5), dual-axis reduction motor (6), sprocket driven rotary humidification module (8), and intermittent point contact moisture detection module (9) move to the end position of the gantry (1), the humidification is completed. The staff turns off the water supply to the sprocket driven rotary humidification module (8). Then, the longitudinal beam (2), sprocket driven rotary humidification module (8), and intermittent point contact moisture detection module (9) are driven to move in the opposite direction of the X-axis by the symmetrical gear walking module (5), dual-axis reduction motor (6), and drive. During the driving movement, the intermittent point contact moisture detection module (9) is detected on the textile fabric in an intermittent manner. Each time, it touches a different position on the fabric and records the moisture content data at that position until the entire fabric area is detected. S104: After the intermittent point-contact moisture detection module (9) completes data acquisition, the staff can view the data analysis results in real time through the intermittent point-contact moisture detection module (9). The detection results will determine whether the water absorption performance of the textile fabric meets the preset standard based on the moisture content of the sample, and provide guidance for the subsequent processing of the fabric.

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