Textile fabric ultraviolet resistance performance detection device

Abstract

The application provides a kind of textile fabric anti-ultraviolet performance detection device, related to cloth detection technical field, including unwinding mechanism, first cross mechanism, second cross mechanism and adjusting through mechanism.Unwinding mechanism is used to release and wind the cloth to be detected;First cross mechanism and second cross mechanism are used for cloth to pass horizontally.Adjusting through mechanism has switchable first and second states, which can make the cloth horizontally extend in the first state and form downward arc concave and upward arc convex in the second state.Linear ultraviolet sensor detection mechanism is used to detect the ultraviolet transmittance of horizontal state cloth;Arc ultraviolet sensor detection mechanism is used to detect the ultraviolet transmittance of arc part of cloth.The application can accurately detect the ultraviolet transmittance of cloth in different forms, suitable for quality evaluation of anti-ultraviolet functional textiles, and reduce the quality defects of textile fabric after leaving factory.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cloth detection, and particularly relates to a textile cloth anti-ultraviolet performance detection device. BACKGROUND

[0002] Anti-ultraviolet textile cloth is a special textile material with the function of blocking or reflecting ultraviolet rays, aiming to protect the skin from the harm of ultraviolet radiation. This kind of cloth realizes the anti-ultraviolet performance through various methods, including the use of high ultraviolet absorption or reflection ability of fiber materials (such as polyester fiber or nylon) and the addition of ultraviolet absorbers, reflectants and other chemical components in the fiber manufacturing process. In addition, the structural design of the fabric, such as increasing the tightness of the fabric, or enhancing the blocking effect of ultraviolet rays through special weaving process, can also significantly improve the anti-ultraviolet performance. Some anti-ultraviolet cloth also adopts post-processing technology, such as coating anti-ultraviolet coating or special dyeing and finishing treatment, to further enhance the protection ability. This kind of material is widely used in outdoor clothing, sunshades, tents and other fields, which can effectively reduce the harm of ultraviolet rays to human skin and prevent the aging of the textile itself due to ultraviolet radiation, with good practicality and durability. In order to improve the protection effect, the anti-ultraviolet performance of the anti-ultraviolet textile cloth needs to be detected before it is put into the market. During the detection, the textile cloth is generally moved flat, and then the anti-ultraviolet light detection is carried out on the textile cloth in flat shape.

[0003] Through long-term practice, the inventor found that after the anti-ultraviolet detection of the textile cloth, the quality defect of the textile cloth still occurs after it is put into the market. SUMMARY

[0004] In order to improve the quality defect problem of the textile cloth, the present application provides an anti-ultraviolet performance detection device for textile cloth.

[0005] The present application provides an anti-ultraviolet performance detection device for textile cloth, which adopts the following technical scheme:

[0006] The application discloses a kind of textile fabric anti-ultraviolet performance detection device, comprising: unwinding mechanism, the unwinding mechanism is horizontally spaced apart with two groups, and respectively for the textile fabric to be detected is released and is wound;First cross mechanism and second cross mechanism, horizontally spaced apart between the two groups of the unwinding mechanism, for the textile fabric to be detected is sequentially horizontally crossed;Adjusting cross mechanism is installed between the first cross mechanism and the second cross mechanism, the adjusting cross mechanism is for the textile fabric to be detected to cross, and the adjusting cross mechanism at least has switchable first state and second state, in the case where the adjusting cross mechanism is in first state, the textile fabric to be detected sequentially crossed the first cross mechanism, adjusting cross mechanism and second cross mechanism is in horizontal extension;In the case where the adjusting cross mechanism is in second state, the textile fabric to be detected sequentially crossed the first cross mechanism, adjusting cross mechanism and second cross mechanism form downward arc-shaped recessed cloth section and upward arc-shaped convex cloth section;Straight-line ultraviolet sensor detection mechanism and arc-line ultraviolet sensor detection mechanism, one group of the straight-line ultraviolet sensor detection mechanism is respectively provided on the first cross mechanism and the second cross mechanism, and the straight-line ultraviolet sensor detection mechanism is used to detect the ultraviolet transmittance of the textile fabric in horizontal straight-line state;The arc-line ultraviolet sensor detection mechanism is provided on the adjusting cross mechanism, and the arc-line ultraviolet sensor detection mechanism is used to detect the ultraviolet transmittance of the recessed part of the downward arc-shaped recessed cloth section and the convex part of the upward arc-shaped convex cloth section respectively.

[0007] Preferably, the first cross mechanism includes a first support and a first cross pipe, the first cross pipe is horizontally arranged above the first support, and the first cross pipe is used for the textile fabric horizontally crossed from the unwinding mechanism;The second cross mechanism includes a second support and a second cross pipe, the second cross pipe is horizontally arranged above the second support, and the second cross pipe is used for the textile fabric horizontally crossed from the unwinding mechanism;The first cross pipe and the second cross pipe are horizontally spaced apart and opposite.

[0008] Preferably, the straight-line ultraviolet sensor detection mechanism includes a first ultraviolet light source emitter and a first ultraviolet light source detection sensor, the first ultraviolet light source emitter is arranged at the upper end of the first cross pipe and the second cross pipe, and the emitting end of the first ultraviolet light source emitter is vertically downward toward the first cross pipe and the second cross pipe;The first ultraviolet light source detection sensor is arranged at the lower end of the first cross pipe and the second cross pipe, and the receiving end of the first ultraviolet light source detection sensor is vertically opposite to the emitting end of the first ultraviolet light source emitter, so that the ultraviolet light emitted by the first ultraviolet light source emitter is shot into the receiving end of the first ultraviolet light source detection sensor after crossing the textile fabric;

[0009] The receiving end of the first ultraviolet light source detection sensor has an area greater than that of the emitting end of the first ultraviolet light source detection sensor.

[0010] Preferably, the adjusting passing mechanism comprises a frame, an adjusting passing pipe, a driving assembly and a pushing assembly, the frame is arranged between the first support and the second support, the driving assembly is arranged on the frame, the adjusting passing pipe is arranged on the driving assembly and is used for passing the textile fabric, the driving assembly is used for driving the adjusting passing pipe to rotate, the pushing assembly is arranged on both ends of the adjusting passing pipe, the pushing assembly has switchable horizontal supporting state and arc-shaped supporting state, when the pushing assembly is switched to the arc-shaped supporting state, the pushing assembly pushes the textile fabric outside both ends of the adjusting passing pipe to an arc shape, so that the textile fabric outside both ends of the adjusting passing pipe forms a downward arc-shaped concave fabric section and an upward arc-shaped convex fabric section, when the adjusting passing mechanism is in the first state, the adjusting passing pipe is in a horizontal state and horizontally faces the first horizontal passing pipe and the second horizontal passing pipe under the action of the driving assembly, and the pushing assembly is automatically switched to the horizontal supporting state, when the adjusting passing mechanism is in the second state, the adjusting passing pipe is in an inclined state and is vertically distributed with the first horizontal passing pipe and the second horizontal passing pipe under the action of the driving assembly, and the pushing assembly is automatically switched to the arc-shaped supporting state.

[0011] Preferably, the driving assembly comprises a servo motor and a connecting rod, the connecting rod is arranged on both sides of the middle part of the adjusting passing pipe, the output shaft of the servo motor is coaxially connected with one of the connecting rods, and the connecting rod is perpendicular to the length direction of the adjusting passing pipe.

[0012] Preferably, the pushing assembly includes a bent tube body, a skin, a threading ring, a torsion spring, a pull rope, and a winding reel. Placement slots are provided on both sides of the end opening of the adjusting tube. The placement slot near the first transverse tube is located above one end opening of the adjusting tube, and the placement slot near the second transverse tube is located below the other end opening of the adjusting tube. A portion of the bent tube body is located within the placement slot, and another portion extends from the placement slot to the distal end of the end opening of the adjusting tube. The bent tube body is composed of multiple axially hinged components. The system is composed of multiple support tubes; three sets of bent tubes are arranged in parallel, with the first set connected inside the placement groove, and the second and third sets located outside the placement groove. A skin is fitted around the three sets of bent tubes to form a surface that can be pressed and adhered to the textile fabric. A torsion spring is located at the hinge of two adjacent support tubes. When the torsion spring is in its natural state, it drives the two adjacent support tubes to be axially parallel, so that the bent tubes are in a straight line in their natural state. A threading ring is located on the inner wall of the support tube. When the bent tubes are in a straight line, multiple support tubes... The threading rings inside the tube are all axially aligned. In the three sets of bent tubes near the first transverse tube, the threading ring is located on the upper inner wall of the support tube in the third set of bent tubes. In the three sets of bent tubes near the second transverse tube, the threading ring is located on the lower inner wall of the support tube in the second set of bent tubes. Two sets of winding reels are coaxially arranged on a connecting rod, with the two sets of winding reels corresponding to the second and third sets of bent tubes, respectively. One end of the pull rope is wound around the winding reel, and the other end passes through multiple threading rings in sequence before connecting to the support tube furthest from the placement slot. The walls are connected, and during the process of the servo motor driving the adjusting tube to rotate to the tilted state, the two sets of winding wheels on one of the connecting rods rotate synchronously, driving one end of the pulling rope to gradually wind around, so that the third set of bent tubes near the first transverse tube gradually changes from a straight state to a downward arc-shaped concave state, and pushes the corresponding attached textile fabric segment downward arc-shaped concave, while at the same time, the second set of bent tubes near the second transverse tube gradually changes from a straight state to an upward arc-shaped convex state, and pushes the corresponding attached textile fabric segment upward arc-shaped convex.

[0013] Preferably, the arc-shaped ultraviolet sensor detection mechanism includes a left sensor detection component and a right sensor detection component, both of which are located between the frame and the adjusting tube. The left sensor detection component is used to detect the ultraviolet transmittance of the textile fabric at the downward arc-shaped concave area, and the right sensor detection component is used to detect the ultraviolet transmittance of the textile fabric at the upward arc-shaped convex area.

[0014] Preferably, the left-side sensor detection assembly includes a left-side ultraviolet light source emitter and a left-side ultraviolet light source detection sensor. A left-side L-shaped bracket is provided at the upper end of the opening of the adjusting tube near the first transverse tube. The left-side ultraviolet light source emitter is mounted on the left-side L-shaped bracket, and the left-side ultraviolet light source detection sensor is mounted on the frame and located below the left-side ultraviolet light source emitter. When the servo motor drives the adjusting tube to an inclined state, the emitting end of the left-side ultraviolet light source emitter rotates to a vertical position directly facing the receiving end of the left-side ultraviolet light source emitter. The end face shape of the receiving end of the left-side ultraviolet light source emitter is an arc-shaped depression adapted to the downward arc-shaped concave section of the textile fabric. The right-side sensor detection assembly includes a right-side ultraviolet light source emitter and a right-side ultraviolet light source detection sensor. The system includes a cylinder, an L-shaped bracket on the right side near the opening of the second transverse tube of the adjusting tube, a right-side ultraviolet light source emitter mounted on the right-side L-shaped bracket, a cylinder mounted on the frame with its piston rod extending vertically upwards, and a right-side ultraviolet light source detection sensor mounted on the piston rod of the cylinder and located below the right-side ultraviolet light source emitter. When the servo motor drives the adjusting tube to an inclined state, the emitting end of the right-side ultraviolet light source emitter rotates to a vertical position directly opposite the receiving end of the right-side ultraviolet light source emitter. The cylinder drives the receiving end of the right-side ultraviolet light source emitter to move upwards and closer to the emitting end of the right-side ultraviolet light source emitter. The end face shape of the receiving end of the right-side ultraviolet light source emitter is an arc-shaped protrusion adapted to the upward arc-shaped protrusion of the textile fabric.

[0015] Preferably, the frame is provided with a limiting block. When the servo motor drives the adjusting tube to rotate to an inclined state, the limiting block abuts against the outer wall of the adjusting tube to restrict the continued movement of the adjusting tube.

[0016] Preferably, the unwinding mechanism includes an unwinding frame, an unwinding wheel, and a rotating motor. The unwinding wheel is rotatably mounted on the unwinding frame, and the rotating motor is mounted on the unwinding frame. The output shaft of the rotating motor is coaxially connected to the unwinding wheel to drive the unwinding wheel to rotate.

[0017] The present invention has the following advantages and beneficial effects:

[0018] First, this invention is flexible in design and can detect the ultraviolet transmittance of textiles in different shapes. By adjusting the switchable state of the transmission mechanism, the textile to be tested can be in a horizontally extended state, or in a state forming a downward arc-shaped depression and an upward arc-shaped convexity. This design allows the device to simulate the actual performance of the fabric under different wearing conditions, especially when stretched or bent, as the ultraviolet transmittance of the fabric may change, thus more accurately assessing the fabric's UV resistance.

[0019] Secondly, the combination of the linear and curved ultraviolet (UV) sensor detection mechanisms enables the device to effectively detect UV transmittance under different fabric configurations. The linear UV sensor detection mechanism is mainly used to detect UV transmittance when the fabric is horizontal, while the curved UV sensor detection mechanism can detect UV transmittance in curved or bent sections of the fabric. This design meets the different requirements of textile fabrics in practical applications, and is particularly suitable for evaluating the functionality of UV-protective textiles, enabling comprehensive and accurate measurement of fabric UV transmittance.

[0020] Furthermore, the design of the unwinding and transverse mechanisms ensures smooth fabric transport throughout the entire inspection process, preventing wrinkles or shifts in the fabric during measurement, thereby improving inspection accuracy and reliability. The unwinding mechanism is configured with two sets at horizontal intervals, used for unwinding and rewinding the fabric to be inspected respectively, further simplifying the operation process.

[0021] Overall, the textile fabric UV resistance testing device of the present invention, by innovatively combining an adjustable fabric transmission method, precise UV detection technology, and stable mechanism design, effectively improves the accuracy and reliability of UV transmittance detection, and can provide a more comprehensive and scientific testing method for evaluating the UV resistance performance of textiles, thereby reducing quality defects in textile fabrics after they leave the factory. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural illustration of an embodiment of this application. Figure 1 ;

[0024] Figure 2 This is a structural illustration of an embodiment of this application. Figure 2 ;

[0025] Figure 3 This is a structural illustration of an embodiment of this application. Figure 3 ;

[0026] Figure 4 This is a schematic diagram illustrating the structure of the adjustment mechanism in a first state according to an embodiment of this application;

[0027] Figure 5This is a schematic diagram of the structure of the adjustment mechanism in its second state, as described in this application embodiment. Figure 1 ;

[0028] Figure 6 This is a schematic diagram of the structure of the adjustment mechanism in its second state, as described in this application embodiment. Figure 2 ;

[0029] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism in its second state, as described in this application embodiment. Figure 8 ;

[0030] Figure 9 This is a partial structural schematic diagram of an embodiment of the present application, illustrating the adjustment mechanism.

[0031] Figure 10 This is a partial cross-sectional view of an embodiment of this application, used to illustrate the bent pipe body;

[0032] Figure 9 yes Figure 11 Enlarged view of part A in the image;

[0033] Figures 1-11 This is a schematic diagram illustrating the hosting connection in an embodiment of this application;

[0034] The diagram is marked as follows:

[0035] 1. Unwinding mechanism; 11. Unwinding frame; 12. Unwinding roller; 13. Rotary motor; 2. First transverse passing mechanism; 21. First support; 22. First transverse passing tube; 3. Second transverse passing mechanism; 31. Second support; 32. Second transverse passing tube; 4. Adjusting passing mechanism; 41. Frame; 411. Limit block; 42. Adjusting passing tube; 421. Left L-shaped support; 422. Right L-shaped support; 43. Drive assembly; 431. Servo motor; 432. Connecting rod; 44. Pushing assembly; 441. Bending tube body; 4411. Support; 442. Cover 443. Threading ring; 444. Torsion spring; 445. Pull rope; 446. Winding reel; 5. Linear ultraviolet sensor detection mechanism; 51. First ultraviolet light source emitter; 52. First ultraviolet light source detection sensor; 6. Arc ultraviolet sensor detection mechanism; 61. Left side sensor detection assembly; 611. Left side ultraviolet light source emitter; 612. Left side ultraviolet light source detection sensor; 62. Right side sensor detection assembly; 621. Right side ultraviolet light source emitter; 622. Right side ultraviolet light source detection sensor; 623. Cylinder. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0037] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0038] In the textile industry, UV-resistant fabrics, as special textile materials with the function of blocking or reflecting ultraviolet rays, are widely used in outdoor clothing, awnings, tents, and other fields to protect human skin from harmful ultraviolet radiation. Achieving UV resistance relies on various technical means, including using fiber materials with high UV absorption or reflection capabilities (such as polyester fibers and nylon), and adding UV absorbers and reflectors during fiber manufacturing. Furthermore, the fabric's structural design is also a crucial factor in achieving UV resistance, such as increasing the fabric's density or employing special weaving techniques to enhance UV blocking capabilities. Some UV-resistant fabrics also undergo post-treatment techniques, such as applying UV-protective coatings or special dyeing and finishing processes, to further enhance the protective effect. The combination of these technologies not only effectively reduces the damage of ultraviolet rays to human skin but also prevents textiles from aging under prolonged UV exposure, ensuring the durability and practicality of the material during use. However, with the development and application of these technologies, the quality control of textile fabrics is particularly critical, especially during the factory inspection process.

[0039] To ensure that the UV protection performance of textile fabrics meets predetermined standards, UV performance testing is typically required. During testing, the fabric is usually laid flat and exposed to UV radiation to measure its transmittance, UV blocking rate, and other indicators. This method, performed in a flat state, is relatively simple, assessing UV protection effectiveness by measuring the fabric's transmittance, and meets most industry standards. However, with technological advancements and changing needs, problems have gradually emerged. Through long-term practice, the inventors have discovered that although textile fabrics achieve the expected protective effect when tested in a flat state, in practical applications, especially after processing into clothing or other protective equipment, the fabric often undergoes bending, folding, and other deformation processes. Since the UV transmittance of the fabric may change under bending conditions, some fabrics that perform well in a flat state may experience a significant decrease in UV protection under bending conditions. This problem has not been effectively solved in existing testing methods, creating certain quality risks. For example, although the UV transmittance of some UV-resistant fabrics may meet standards in a flat state, the transmittance may be substandard after bending, thus affecting the UV protection performance of the final product. This problem is particularly prominent in products such as protective clothing and tents that require bending and folding. When bent, the fabric's UV protection performance is insufficient, which may expose workers wearing these protective suits to UV radiation, posing potential health risks.

[0040] Currently, most existing technologies only test the UV resistance of fabrics in a flat state, lacking a comprehensive assessment of the UV resistance performance of fabrics in a bent state. For example, Chinese patent application CN202411443296.4 discloses a device for testing the UV resistance of textile fabrics. This device can only test fabrics in a flat state and cannot effectively test the UV transmittance of fabrics in a bent state. This technological deficiency leads to insufficient assessment of the UV resistance performance of fabrics under actual use, thus failing to comprehensively and accurately reflect the actual protective capability of the fabric. Especially when producing products such as protective clothing and tents that require fabrics to be used in a bent state, traditional testing methods fail to effectively predict whether the fabric can continue to provide sufficient UV protection after bending.

[0041] Therefore, the main drawback of existing technologies is that they only consider the UV protection performance of fabrics in a straight state, neglecting their performance when bent, leading to insufficient assessment of potential UV radiation risks in actual use. To address this issue, a new testing method or device is needed to accurately test the UV resistance of fabrics when bent, ensuring that the corresponding UV protection standards are still met even when the fabric is deformed. This technological advancement will not only improve the quality control of UV-resistant textiles but also ensure the safety and reliability of protective clothing, awnings, and other products in practical applications, thus providing the textile industry with more precise testing technology and enhancing product market competitiveness.

[0042] Based on this, this application provides a device for testing the UV resistance of textile fabrics.

[0043] Please refer to Figures 1-3 The device includes an unwinding mechanism 1, a first transverse passing mechanism 2, a second transverse passing mechanism 3, an adjusting passing mechanism 4, a linear ultraviolet sensor detection mechanism 5, and an arc ultraviolet sensor detection mechanism 6. The unwinding mechanism 1 is provided in two sets at horizontal intervals, and is used to release and rewind the textile fabric to be tested, respectively. The first transverse passing mechanism 2 and the second transverse passing mechanism 3 are arranged at horizontal intervals between the two sets of unwinding mechanisms 1, and are used for the textile fabric to be tested to pass through horizontally in sequence.

[0044] Meanwhile, the adjusting through-pass mechanism 4 is installed at intervals between the first transverse passing mechanism 2 and the second transverse passing mechanism 3. The adjusting through-pass mechanism 4 is used for the textile fabric to be tested to pass through, and the adjusting through-pass mechanism 4 has at least a switchable first state and a second state. When the adjusting through-pass mechanism 4 is in the first state, the textile fabric to be tested that passes through the first transverse passing mechanism 2, the adjusting through-pass mechanism 4 and the second transverse passing mechanism 3 in sequence is in a horizontally extended state. When the adjusting through-pass mechanism 4 is in the second state, the textile fabric to be tested that passes through the first transverse passing mechanism 2, the adjusting through-pass mechanism 4 and the second transverse passing mechanism 3 in sequence forms a downwardly arc-shaped concave fabric segment and an upwardly arc-shaped convex fabric segment.

[0045] Furthermore, a set of linear ultraviolet sensor detection mechanisms 5 are respectively provided on the first transverse mechanism 2 and the second transverse mechanism 3. The linear ultraviolet sensor detection mechanism 5 is used to detect the ultraviolet transmittance of the textile fabric in a horizontal straight state. The arc ultraviolet sensor detection mechanism 6 is provided on the adjusting through mechanism 4. The arc ultraviolet sensor detection mechanism 6 is used to detect the ultraviolet transmittance of the concave part of the downward arc-shaped concave fabric segment and the convex part of the upward arc-shaped convex fabric segment.

[0046] Based on this, by setting up the unwinding mechanism 1 and the first and second transverse mechanisms 3, the textile fabric to be inspected can be horizontally transported and controlled within the device, thereby ensuring stable inspection of the fabric under different conditions. The horizontal spacing of the unwinding mechanism 1 keeps the fabric flat and controllable during the unwinding and rewinding processes, avoiding wrinkles or deformation of the fabric and ensuring the accuracy of subsequent inspection processes.

[0047] Secondly, the design of the adjusting through-feed mechanism 4 has significant technical advantages. This mechanism can switch between a first state and a second state, allowing the fabric to be tested in both states. In the first state, the textile fabric to be tested is in a horizontally extended position. In this state, the ultraviolet transmittance of the fabric is measured by the linear ultraviolet sensor detection mechanism 5. This measurement provides the ultraviolet protection effect of the fabric in a straight state, offering manufacturers accurate test data to evaluate the fabric's UV resistance. Simultaneously, when the adjusting through-feed mechanism 4 switches to the second state, the fabric's shape changes, forming downward-curved concave and upward-curved convex sections. This simulates the bending and folding states that the fabric may experience during actual use, especially in the practical applications of protective clothing and sunshade materials, where the fabric often needs to be used in a bent state. At this time, the curved ultraviolet sensor detection mechanism 6 comes into play, detecting the ultraviolet transmittance of the downward-curved concave and upward-curved convex sections respectively. The technical advantage of this design is that it can accurately reflect the ultraviolet resistance performance of the fabric in a bent state, ensuring that the final product provides sufficient ultraviolet protection in actual use and avoiding potential ultraviolet damage due to incomplete testing.

[0048] Furthermore, by incorporating a linear ultraviolet sensor detection mechanism 5 and a curved ultraviolet sensor detection mechanism 6, this device can accurately detect the ultraviolet transmittance of fabrics in different configurations. The linear ultraviolet sensor detection mechanism 5 effectively detects the ultraviolet blocking performance of the fabric in a straight state, providing standardized measurement results for fabric quality control. The curved ultraviolet sensor detection mechanism 6, by detecting the transmittance of the fabric in a bent state, overcomes the limitation of existing technologies that cannot measure the performance of fabrics after bending. This allows for a comprehensive evaluation of the ultraviolet protection capability of fabrics in various application scenarios, thereby improving product quality and reliability.

[0049] The technical advantages of this invention are also reflected in the optimization of the production process. Traditional UV resistance testing is limited to the flat state of the fabric and cannot predict changes in UV transmittance caused by bending, folding, or other changes in the fabric's condition during actual use. This device, however, provides a more comprehensive and accurate performance assessment by testing the UV transmittance of the fabric in both flat and bent states, offering stronger data support for fabric quality control. This not only improves the accuracy of the test results but also increases the efficiency of the testing process, saving manufacturers time and costs in the fabric testing stage.

[0050] Furthermore, the device of this invention is simple in design and easy to operate, enabling the detection of ultraviolet transmittance of fabrics without requiring extensive fabric treatment. The device's structure can be adjusted according to actual needs to adapt to the testing requirements of different types, thicknesses, and textures of textile fabrics. This flexibility not only enhances the applicability of the equipment but also improves its versatility, meeting the testing requirements of a wide variety of textile fabric products.

[0051] In summary, the UV resistance testing device for textile fabrics of this invention, through its innovative structural design, enables comprehensive testing of the UV transmittance of fabrics under different conditions. This overcomes the shortcomings of existing technologies, providing a more accurate and comprehensive performance evaluation, and ensuring the safety and reliability of UV-resistant textile fabrics in practical use. Furthermore, the device offers high ease of operation and applicability, providing manufacturers with an efficient and precise testing tool, improving product quality control, and ensuring that the final product provides effective UV protection in practical applications, thereby reducing quality defects in textile fabrics after they leave the factory.

[0052] In some embodiments, such as Figures 1-3 As shown, the first transverse mechanism 2 includes a first support 21 and a first transverse tube 22. The first transverse tube 22 is horizontally arranged above the first support 21 and is used for the textile fabric released from the unwinding mechanism 1 to pass horizontally through. The second transverse mechanism 3 includes a second support 31 and a second transverse tube 32. The second transverse tube 32 is horizontally arranged above the second support 31 and is used for the textile fabric released from the unwinding mechanism 1 to pass horizontally through.

[0053] For example, the first transverse tube 22 and the second transverse tube 32 are horizontally spaced and directly opposite each other.

[0054] This configuration ensures that the textile fabric to be tested can be smoothly released from the unwinding mechanism 1 and transported through the intervals of the first transverse tube 22 and the second transverse tube 32 without deviation or entanglement. This arrangement allows the fabric to remain straight during testing, avoiding wrinkles or uneven stretching during transport, thus ensuring fabric shape stability and improving the accuracy of UV transmittance testing. Simultaneously, this configuration enables the device to efficiently handle textile fabrics of different specifications and sizes, providing better adaptability and flexibility. Furthermore, the opposing arrangement of the first transverse tube 22 and the second transverse tube 32 ensures uniform stretching of the fabric in the horizontal direction, effectively preventing deviations or deformations during transmission, further ensuring accurate measurement of the fabric's UV resistance.

[0055] In some implementations, combined with Figures 3-7 The linear ultraviolet sensor detection mechanism 5 includes a first ultraviolet light source emitter 51 and a first ultraviolet light source detection sensor 52. The first ultraviolet light source emitter 51 is located at the upper end of the first transverse tube 22 and the second transverse tube 32, and the emitting end of the first ultraviolet light source emitter 51 is vertically downward and faces into the first transverse tube 22 and the second transverse tube 32. For example, the first ultraviolet light source detection sensor 52 is located at the lower end of the first transverse tube 22 and the second transverse tube 32, and the receiving end of the first ultraviolet light source detection sensor 52 is vertically aligned with the emitting end of the first ultraviolet light source emitter 51, so that the ultraviolet light emitted by the first ultraviolet light source emitter 51 enters the receiving end of the first ultraviolet light source detection sensor 52 after passing through the textile fabric. For example, the area of ​​the receiving end of the first ultraviolet light source detection sensor 52 is larger than the area of ​​the emitting end of the first ultraviolet light source detection sensor 52.

[0056] For example, openings are provided on the upper pipe walls of the first transverse pipe 22 and the second transverse pipe 32 for the emitting end of the first ultraviolet light source emitter 51 to extend into, and the exterior of the first ultraviolet light source emitter 51 is sealed to the edge of the opening to minimize the leakage of ultraviolet light emitted by the first ultraviolet light source emitter 51.

[0057] This configuration allows ultraviolet light to be uniformly irradiated onto the textile fabric being tested in a vertical direction. This structure ensures that the ultraviolet light penetrates the surface of the fabric in a straight line as it passes through, and avoids deviations of the ultraviolet light source at other angles, thereby improving the accuracy of the testing process.

[0058] Meanwhile, the first ultraviolet light source detection sensor 52 is positioned at the lower end of the first transverse tube 22 and the second transverse tube 32, with its receiving end vertically aligned with the emitting end of the ultraviolet light source emitter. This ensures that the ultraviolet light emitted by the ultraviolet light source emitter can directly penetrate the textile fabric and enter the receiving end of the light source detection sensor. This alignment significantly reduces optical path deviation and measurement errors, making the detection of ultraviolet light after it passes through the fabric more accurate. In particular, the area of ​​the receiving end of the first ultraviolet light source detection sensor 52 is larger than the area of ​​its emitting end. This design ensures that the sensor can effectively capture ultraviolet light passing through the textile fabric, improving not only the sensitivity of the received signal but also the stability of ultraviolet transmittance detection. The larger area of ​​the receiving end effectively avoids measurement inaccuracies caused by ultraviolet light scattering or errors in the light source emission angle, ensuring the reliability and consistency of the measurement.

[0059] Overall, the linear ultraviolet sensor detection mechanism 5 optimizes the ultraviolet emission and reception system, making the detection process more accurate and efficient. The vertical downward emission of the transmitter and the precise alignment of the sensor ensure the consistency of the optical path between the ultraviolet light and the textile fabric, avoiding detection deviations caused by angular errors. Simultaneously, the increased receiver area improves the sensitivity and fault tolerance of the sensor, enabling the detection system to operate stably on different textile fabrics of varying thicknesses and textures, further enhancing the adaptability and practicality of the entire detection device. Therefore, the linear ultraviolet sensor detection mechanism 5 effectively improves the detection accuracy, stability, and reliability of the device, providing more scientific and accurate data support for evaluating the ultraviolet resistance of textile fabrics.

[0060] In some implementations, combined with Figures 5-8 The adjusting threading mechanism 4 includes a frame 41, an adjusting threading tube 42, a drive assembly 43, and a pushing assembly 44. The frame 41 is located between the first support 21 and the second support 31. The drive assembly 43 is located on the frame 41. The adjusting threading tube 42 is located on the drive assembly 43 and is used for feeding textile fabric through.

[0061] For example, the drive component 43 is used to drive the adjustment tube 42 to rotate, and the push component 44 is provided at both ends of the adjustment tube 42. The push component 44 has a switchable horizontal support state and an arc support state. When the push component 44 is switched to the arc support state, the push component 44 pushes the part of the textile fabric located on the outer side of both ends of the adjustment tube 42 to an arc shape, so that the part of the textile fabric located on the outer side of both ends of the adjustment tube 42 forms a downward arc-shaped concave fabric segment and an upward arc-shaped convex fabric segment.

[0062] For example, when the adjusting through mechanism 4 is in the first state, the adjusting through tube 42 is in a horizontal state under the action of the driving component 43 and is directly opposite the first transverse through tube 22 and the second transverse through tube 32, and the pushing component 44 automatically switches to the horizontal support state; when the adjusting through mechanism 4 is in the second state, the adjusting through tube 42 is in an inclined state under the action of the driving component 43 and is vertically offset from the first transverse through tube 22 and the second transverse through tube 32, and the pushing component 44 automatically switches to the arc support state.

[0063] Based on this, the adjusting tube 42, driven by the drive component 43, can flexibly adjust its state, thereby changing the shape of the textile fabric passing through it. Specifically, when the adjusting passing mechanism 4 is in the first state, the adjusting tube 42 is in a horizontal state, directly opposite the first transverse tube 22 and the second transverse tube 32, and the pushing component 44 automatically switches to a horizontal supporting state. In this state, the textile fabric to be tested is in a straight shape, suitable for measuring linear ultraviolet transmittance. This design ensures that the fabric can pass smoothly through the sensor area during routine testing, thus ensuring the accuracy of the ultraviolet transmittance measurement results.

[0064] When the adjusting through-tube 4 switches to the second state, the adjusting through-tube 42 is tilted under the action of the driving component 43, vertically offset from the first through-tube 22 and the second through-tube 32, and the pushing component 44 automatically switches to the arc-shaped support state. In this state, the pushing component 44 pushes the fabric located on the outer sides of both ends of the adjusting through-tube 42 into an arc shape, forming a downward arc-shaped concave fabric segment and an upward arc-shaped convex fabric segment. This design simulates the bending state that the fabric may undergo in actual use, especially during the manufacturing process of protective clothing, where the fabric may bend or wrinkle due to wearing. Therefore, this design can comprehensively evaluate the UV resistance performance of the fabric under different conditions, ensuring its UV protection effect in actual use.

[0065] This switching function allows the adjustment mechanism 4 to accurately detect UV transmittance for fabrics in different states, avoiding the limitations of traditional technologies that only test fabrics in a flat state. The application of this technology further improves the accuracy, comprehensiveness, and practical applicability of UV protection performance testing, ensuring the UV protection effect of finished products such as protective clothing in actual use. This effectively improves the quality testing level of textile fabrics and provides reliable technical support for product quality assurance in related fields.

[0066] In some implementations, combined with Figures 5-11The drive assembly 43 includes a servo motor 431 and connecting rods 432. Connecting rods 432 are located on both sides of the middle of the adjusting tube 42, and the two connecting rods 432 are axially aligned. One connecting rod 432 is coaxially connected to the output shaft of the servo motor 431, and the connecting rod 432 is perpendicular to the length direction of the adjusting tube 42. For example, the adjusting tube 42 is rectangular, and the connecting rod 432 is parallel to the centerline of the adjusting tube 42. This allows the servo motor 431 to precisely control the rotation of the adjusting tube 42, enabling free switching between horizontal and inclined states, thereby indirectly achieving precise adjustment of the textile fabric's shape. Through this coaxial connection and vertical arrangement, the connecting rods 432 can effectively transmit the driving force of the servo motor 431, ensuring stable movement of the adjusting tube 42 and avoiding deviations or uneven rotation caused by unstable connections.

[0067] Meanwhile, the application of the servo motor 431 ensures the high-precision adjustment capability of the drive component 43, enabling real-time adjustment of the angle and position of the adjusting tube 42 according to testing needs, thereby achieving accurate testing of the fabric under different conditions. Furthermore, the design of the connecting rod 432 being perpendicular to the length direction of the adjusting tube 42 makes motion transmission more stable and efficient, effectively preventing torque deviations or motion resistance that may occur during connection, further improving the stability and reliability of the system. Through these optimized designs, the present invention can achieve precise control over changes in fabric shape, thereby improving the accuracy of ultraviolet transmittance detection and its adaptability to practical applications.

[0068] In some implementations, combined with Figures 5-7 The push-pull assembly 44 includes a bent tube body 441, a skin 442, a threading ring 443, a torsion spring 444, a pull rope 445, and a winding wheel 446. Placement slots are provided on both sides of the end opening of the adjusting tube 42. The placement slot near the first transverse tube 22 is located above one end opening of the adjusting tube 42, and the placement slot near the second transverse tube 32 is located below the other end opening of the adjusting tube 42.

[0069] For example, in combination Figures 7-9 One part of the bent tube body 441 is located in the placement groove, and the other part extends from the placement groove to the far end of the end opening of the adjusting tube 42. The bent tube body 441 is composed of multiple axially hinged support tubes 4411.

[0070] For example, in combination Figures 9-11 Three sets of bent tubes 441 are arranged in parallel. The first set is connected to the placement groove, and the second and third sets of bent tubes 441 are located outside the placement groove. The skin 442 is fitted around the three sets of bent tubes 441 to form a bonding surface that can be squeezed and bonded to the textile fabric.

[0071] For example, in combination Figures 10-11 A torsion spring 444 is located at the hinge of two adjacent tubes 4411. When in its natural state, the torsion spring 444 drives the two adjacent tubes 4411 to be axially parallel, so that the bent tube 441 is in a straight state in its natural state. Furthermore, the hinge of the two adjacent tubes 4411 is located at the middle of the axial direction of the tubes 4411, and there is a rotation gap between the two adjacent tubes 4411. The rotation gap is located on both radial sides of the hinge, and along the radial direction of the tubes 4411, the opening width of the rotation gap gradually increases from the side closer to the hinge to the side farther away from the hinge, so that the two adjacent tubes 4411 can achieve relative bending and rotation.

[0072] For example, in combination Figure 8 The threading ring 443 is located on the inner wall of the support tube 4411. When the bent tube 441 is in a straight state, the threading rings 443 in the multiple support tubes 4411 are axially aligned. In the three sets of bent tubes 441 near the first transverse tube 22, the threading ring 443 is located on the upper inner wall of the support tube 4411 in the third set of bent tubes 441. In the three sets of bent tubes 441 near the second transverse tube 32, the threading ring 443 is located on the lower inner wall of the support tube 4411 in the second set of bent tubes 441. This allows the pulling ropes 445 located at both ends of the adjusting tube 42 to drive the bent tubes 441 without interfering with each other during the bending process.

[0073] For example, refer to Figure 9 , Figure 3 Two sets of winding wheels 446 are coaxially arranged on a connecting rod 432. The two sets of winding wheels 446 correspond to the second and third sets of bent tubes 441, respectively. One end of the pull rope 445 is wound around the winding wheel 446, and the other end passes through multiple threading rings 443 in sequence and is connected to the inner wall of the support tube 4411 furthest from the placement slot. During the process of the servo motor 431 driving the adjusting tube 42 to rotate to the inclined state, the two sets of winding wheels 446 on a connecting rod 432 rotate synchronously, driving one end of the pull rope 445 to gradually wind, so that the third set of bent tubes 441 near the first transverse tube 22 gradually changes from a straight state to a downward arc-shaped concave state, and pushes the corresponding fabric segment of the textile to be arc-shaped concave downward. At the same time, the second set of bent tubes 441 near the second transverse tube 32 gradually changes from a straight state to an upward arc-shaped convex state, and pushes the corresponding fabric segment of the textile to be arc-shaped convex upward.

[0074] Based on this, the push-pull assembly 44 achieves effective control over the shape of the textile fabric through the design of the bent tube body 441. The bent tube body 441 is composed of multiple axially hinged support tubes 4411, arranged in three parallel groups. The first group is connected inside the placement groove, while the second and third groups are located outside the placement groove. The skin 442 covers the periphery of the three groups of bent tube bodies 441, forming a bonding surface that can be squeezed and adhered to the textile fabric. This design ensures that the fabric can contact the bent tube body 441 evenly and precisely during bending, forming a bending shape that conforms to actual usage conditions. The greatest advantage of this structure is that it can adapt to the dynamic changes of the textile fabric. Whether bending into a downward arc-shaped concave shape or an upward arc-shaped convex shape, it can precisely control the shape of the fabric, providing reliable data for subsequent ultraviolet transmittance testing.

[0075] Secondly, the torsion spring 444 ensures that the bent tube 441 remains straight in its natural state. During adjustment, the state of the bent tube 441 changes, driven by the servo motor 431. The torsion spring 444 plays a crucial role at the hinge of adjacent support tubes 4411. It not only ensures that the bent tube 441 automatically returns to a straight state when not in operation, but also provides a smooth, resistance-free transition during operation, avoiding jamming caused by friction or excessive force, thereby effectively improving the stability and service life of the device.

[0076] The design of the threading rings 443 increases the precision of the system. Each tube 4411 contains multiple threading rings 443, and when the bent tube 441 is in a straight position, the threading rings 443 are axially aligned, ensuring that the pull rope 445 can move along the predetermined path and preventing slippage or uneven force between the fabric and the equipment. The rational arrangement of the threading rings 443 allows the pull rope 445 to effectively drive the fabric's shape changes and precisely control the fabric's bending state.

[0077] The design of the winding reels 446 is also a major highlight of this invention. Two sets of winding reels 446 are coaxially mounted on a connecting rod 432, corresponding to the second and third sets of bending tubes 441, respectively. The synchronous rotation of the winding reels 446 enables one end of the pull rope 445 to gradually wind around, driving the bending tube 441 to change its shape, thereby controlling the bending state of the textile fabric. Under the action of the servo motor 431, the two sets of winding reels 446 on the connecting rod 432 work together to gradually change the bending tube 441 from a straight state to a downward or upward bend, ensuring that the shape of the textile fabric during the testing process conforms to the actual usage conditions. Through this precise control, the bending state of the fabric is closely related to the detection results of ultraviolet transmittance, thereby improving the reliability of the detection.

[0078] Overall, by integrating a series of innovative designs, including a bending tube 441, a torsion spring 444, a pull rope 445, and a winding wheel 446, into the push-pull assembly 44, precise control of the textile fabric under different conditions is ensured. This allows the testing device to adjust the fabric's shape according to actual needs, guaranteeing testing accuracy while avoiding errors caused by unstable fabric conditions. This technology overcomes the limitation of existing testing devices that can only test straight fabrics, making the test results more consistent with actual usage and offering broader application prospects. It is particularly suitable for testing the UV resistance of outdoor protective clothing, sunshade fabrics, and other products where bending shape needs to be considered. Furthermore, this design is simple in structure and easy to operate, improving production efficiency and service life while maintaining high precision, thus providing an important supplement and improvement to existing technologies.

[0079] It is worth noting that the principle by which the pull rope 445 drives the bent tube 441 to rotate in a predetermined direction after passing through multiple threading loops 443 is as follows: When the winding wheel 446 pulls the pull rope 445 on one side, the pull rope 445 applies a tension force to the fixed point connected to the support tube 4411, which generates a torque on the support tube 4411. Due to the torsional force of the torsion spring 444, this unbalanced torque forces the support tube 4411 to bend in the direction of the tension force. At this time, the torsion spring 444 provides a certain support force for the support tube 4411, preventing excessive displacement or instability during the bending process. In summary, the core principle of bending the bent tube 441 by rotating the winding wheel 446 and pulling the pull rope 445 on one side lies in the cumulative effect of unilateral torque imbalance and bending angle. By rationally designing the layout of the pull rope 445 and the structure of the support tube 4411, it is possible to make the bent tube 441 bend along a preset route.

[0080] In some implementations, reference is made to Figure 5 , Figure 6 and Figure 6 The arc-shaped ultraviolet sensor detection mechanism 6 includes a left sensor detection component 61 and a right sensor detection component 62. Both the left sensor detection component 61 and the right sensor detection component 62 are located between the frame 41 and the adjusting tube 42.

[0081] The left sensor detection component 61 is used to detect the ultraviolet transmittance of the textile fabric at the downward arc-shaped depression, and the right sensor detection component 62 is used to detect the ultraviolet transmittance of the textile fabric at the upward arc-shaped convex part.

[0082] For example, the left sensor detection assembly 61 includes a left ultraviolet light source emitter 611 and a left ultraviolet light source detection sensor 612. The upper end of the adjusting tube 42 near the opening of the first transverse tube 22 is provided with a left L-shaped bracket 421. The left ultraviolet light source emitter 611 is located on the left L-shaped bracket 421, and the left ultraviolet light source detection sensor 612 is located on the frame 41 and below the left ultraviolet light source emitter 611. When the servo motor 431 drives the adjusting tube 42 to rotate to the tilted state, the emitting end of the left ultraviolet light source emitter 611 rotates to the vertical position facing the receiving end of the left ultraviolet light source emitter 611. The end face shape of the receiving end of the left ultraviolet light source emitter 611 is an arc-shaped depression that matches the downward arc-shaped concave section of the textile fabric.

[0083] For example, the right-side sensor detection assembly 62 includes a right-side ultraviolet light source emitter 621, a right-side ultraviolet light source detection sensor 622, and a cylinder 623. A right-side L-shaped bracket 422 is provided at the upper end of the opening near the second transverse tube 32 of the adjusting tube 42. The right-side ultraviolet light source emitter 621 is mounted on the right-side L-shaped bracket 422. The cylinder 623 is mounted on the frame 41, and the piston rod of the cylinder 623 extends vertically upwards. The right-side ultraviolet light source detection sensor 622 is mounted on the piston rod of the cylinder 623 and is located below the right-side ultraviolet light source emitter 621.

[0084] When the servo motor 431 drives the adjusting tube 42 to rotate to the tilted state, the emitting end of the right ultraviolet light source emitter 621 rotates to be vertically facing the receiving end of the right ultraviolet light source emitter 621. The cylinder 623 drives the receiving end of the right ultraviolet light source emitter 621 to move upward and close to the emitting end of the right ultraviolet light source emitter 621. The end face shape of the receiving end of the right ultraviolet light source emitter 621 is an arc protrusion that matches the upward arc protrusion of the fabric.

[0085] This configuration, with the left-side sensor detection component 61 and the right-side sensor detection component 62, corresponds to the UV transmittance detection requirements of the fabric under different bending shapes. The left-side sensor detection component 61 is used to detect the UV transmittance when the fabric is in a downwardly curved concave shape, while the right-side sensor detection component 62 is used to detect the UV transmittance when the fabric is in an upwardly curved convex shape. This design allows the detection device to flexibly adjust the detection position and direction according to the different bending shapes of the fabric, thereby achieving accurate measurement of UV transmittance under different fabric shapes and avoiding measurement errors caused by changes in fabric shape.

[0086] Secondly, in the specific implementation of the left-side sensor detection component 61, the left-side ultraviolet light source emitter 611, mounted on the left-side L-shaped bracket 421, emits ultraviolet light that accurately irradiates the downward-curving concave portion of the fabric. The left-side ultraviolet light source detection sensor 612 is located below the ultraviolet light source emitter. When the adjusting tube 42 is rotated to the tilted state, the emitting end of the ultraviolet light source emitter is vertically aligned with the receiving end of the ultraviolet light source detection sensor. At this time, the end face shape of the receiving end is designed as an arc-shaped concave portion that matches the downward curvature of the fabric, thereby ensuring accurate irradiation and detection of ultraviolet light and improving the detection accuracy of ultraviolet transmittance.

[0087] Regarding the right-side sensor detection assembly 62, the right-side ultraviolet light source emitter 621 is fixed by the right-side L-shaped bracket 422. The cylinder 623, by adjusting the lifting and lowering of the piston rod, achieves precise alignment between the ultraviolet light source emitter and the detection sensor. When the servo motor 431 drives the adjusting tube 42 to an inclined state, the emitting end of the right-side ultraviolet light source emitter 621 is vertically aligned with the receiving end of the ultraviolet light source detection sensor. The cylinder 623 then drives the receiving end of the detection sensor upwards, closer to the ultraviolet emitting end. At this time, the end face shape of the receiving end is designed as an arc-shaped protrusion adapted to the upward curvature of the textile fabric, thereby ensuring that the ultraviolet emitter and the receiving end can effectively detect ultraviolet transmittance when the fabric is in an upward arc-shaped protrusion state.

[0088] In summary, this invention, through innovative design of the sensor detection components, solves the problem of insufficient accuracy in detecting ultraviolet transmittance of textile fabrics under bending deformation conditions in existing technologies. The precise layout of the left and right sensor detection components 62, as well as the adaptable design of the ultraviolet light source and receiving sensor, ensures accurate and comprehensive measurement of ultraviolet transmittance under different bending conditions. This not only improves the performance and reliability of the ultraviolet resistance testing device but also broadens its applicability in practical applications, especially in the testing of outdoor, sunshade, and sun-protective textile products, demonstrating significant technical advantages.

[0089] In some implementations, reference is made to Figures 1-3 The frame 41 is equipped with a limiting block 411. When the servo motor 431 drives the adjusting tube 42 to rotate to the tilted state, the limiting block 411 abuts against the outer wall of the adjusting tube 42 to restrict the continued movement of the adjusting tube 42. For example, a limiting block 411 is staggered on the upper and lower sides of the adjusting tube 42 on the frame 41. When the adjusting tube 42 rotates to the tilted state, the upper and lower tube walls of the adjusting tube 42 are respectively limited by a limiting block 411, thereby effectively restricting the rotation of the adjusting tube 42.

[0090] In some implementations, reference is made to ​The unwinding mechanism 1 includes an unwinding frame 11, an unwinding wheel 12, and a rotary motor 13. The unwinding wheel 12 is rotatably mounted on the unwinding frame 11, and the rotary motor 13 is mounted on the unwinding frame 11. The output shaft of the rotary motor 13 is coaxially connected to the unwinding wheel 12 to drive the unwinding wheel 12 to rotate. Starting the rotary motor 13 will cause the unwinding wheel 12 to rotate, thus enabling one unwinding wheel 12 to release the textile fabric while the other unwinding wheel 12 simultaneously winds the textile fabric. It is worth noting that during the process of adjusting the through-feeding mechanism 4 from the first state to the second state, the rotary motor 13 is turned off in advance, allowing the two unwinding wheels 12 to be in a free-spinning state without the rotary motor 13. At this time, when the textile fabric changes from a straight state to a partially bent state, a certain tension is generated on the part of the textile fabric wound on the unwinding wheel 12. At this time, the part of the textile fabric on the free-spinning unwinding wheel 12 can be pulled out to adapt to the change in shape of the textile fabric.

[0091] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for testing the UV resistance of textile fabrics, characterized in that, include: The unwinding mechanism (1) is provided in two sets at horizontal intervals, and is used to unwind and rewind the textile fabric to be tested, respectively. The first transverse mechanism (2) and the second transverse mechanism (3) are horizontally spaced between the two sets of unwinding mechanisms (1) for the textile fabric to be tested to pass through horizontally in sequence. An adjusting passage mechanism (4) is installed at intervals between the first transverse passage mechanism (2) and the second transverse passage mechanism (3). The adjusting passage mechanism (4) is used for the textile fabric to be tested to pass through, and the adjusting passage mechanism (4) has at least a switchable first state and a second state. When the adjusting passage mechanism (4) is in the first state, the textile fabric to be tested that passes through the first transverse passage mechanism (2), the adjusting passage mechanism (4) and the second transverse passage mechanism (3) in sequence is in a horizontally extended state. When the adjusting passage mechanism (4) is in the second state, the textile fabric to be tested that passes through the first transverse passage mechanism (2), the adjusting passage mechanism (4) and the second transverse passage mechanism (3) in sequence forms a downwardly arc-shaped concave fabric segment and an upwardly arc-shaped convex fabric segment. A linear ultraviolet sensor detection mechanism (5) and an arc ultraviolet sensor detection mechanism (6) are respectively provided on the first transverse mechanism (2) and the second transverse mechanism (3). The linear ultraviolet sensor detection mechanism (5) is used to detect the ultraviolet transmittance of textile fabric in a horizontal straight state. The arc ultraviolet sensor detection mechanism (6) is provided on the adjustment and passing mechanism (4). The arc ultraviolet sensor detection mechanism (6) is used to detect the ultraviolet transmittance of the concave part of the downward arc-shaped concave fabric segment and the convex part of the upward arc-shaped convex fabric segment.

2. The device for testing the UV resistance of textile fabrics according to claim 1, characterized in that, The first transverse mechanism (2) includes a first support (21) and a first transverse tube (22). The first transverse tube (22) is horizontally disposed above the first support (21) and is used for the textile fabric released from the unwinding mechanism (1) to pass horizontally through. The second transverse mechanism (3) includes a second support (31) and a second transverse tube (32). The second transverse tube (32) is horizontally disposed above the second support (31) and is used for the textile fabric released from the unwinding mechanism (1) to pass horizontally through. The first transverse tube (22) and the second transverse tube (32) are horizontally spaced and directly opposite each other.

3. The device for testing the UV resistance of textile fabrics according to claim 2, characterized in that, The linear ultraviolet sensor detection mechanism (5) includes a first ultraviolet light source emitter (51) and a first ultraviolet light source detection sensor (52). The first ultraviolet light source emitter (51) is located at the upper end of the first transverse tube (22) and the second transverse tube (32), and the emitting end of the first ultraviolet light source emitter (51) is vertically downward toward the inside of the first transverse tube (22) and the second transverse tube (32). The first ultraviolet light source detection sensor (52) is located at the lower end of the first transverse tube (22) and the second transverse tube (32), and the receiving end of the first ultraviolet light source detection sensor (52) is vertically aligned with the emitting end of the first ultraviolet light source emitter (51), so that the ultraviolet light emitted by the first ultraviolet light source emitter (51) enters the receiving end of the first ultraviolet light source detection sensor (52) after passing through the textile fabric. The area of ​​the receiving end of the first ultraviolet light source detection sensor (52) is larger than the area of ​​the emitting end of the first ultraviolet light source detection sensor (52).

4. The device for testing the UV resistance of textile fabrics according to claim 2, characterized in that, The adjusting threading mechanism (4) includes a frame (41), an adjusting threading tube (42), a drive assembly (43), and a pushing assembly (44). The frame (41) is located between the first support (21) and the second support (31). The drive assembly (43) is located on the frame (41). The adjusting threading tube (42) is located on the drive assembly (43) and is used for the textile fabric to pass through. The driving component (43) is used to drive the adjusting tube (42) to rotate. The pushing component (44) is provided at both ends of the adjusting tube (42). The pushing component (44) has a switchable horizontal support state and an arc support state. When the pushing component (44) is switched to the arc support state, the pushing component (44) pushes the part of the textile fabric located on the outer side of both ends of the adjusting tube (42) to an arc shape, so that the part of the textile fabric located on the outer side of both ends of the adjusting tube (42) forms a downward arc concave section and an upward arc convex section. When the adjusting through mechanism (4) is in the first state, the adjusting through tube (42) is in a horizontal state under the action of the driving component (43) and is horizontally aligned with the first through tube (22) and the second through tube (32), and the pushing component (44) automatically switches to the horizontal support state. When the adjusting through mechanism (4) is in the second state, the adjusting through tube (42) is in an inclined state under the action of the driving component (43) and is vertically misaligned with the first through tube (22) and the second through tube (32), and the pushing component (44) automatically switches to the arc-shaped supporting state.

5. The device for testing the UV resistance of textile fabrics according to claim 4, characterized in that, The drive assembly (43) includes a servo motor (431) and a connecting rod (432). The connecting rod (432) is provided on both sides of the middle part of the adjustment tube (42), and the two connecting rods (432) are axially aligned. One of the connecting rods (432) is coaxially connected to the output shaft of the servo motor (431), and the connecting rod (432) is perpendicular to the length direction of the adjustment tube (42).

6. The device for testing the UV resistance of textile fabrics according to claim 5, characterized in that, The push-pull assembly (44) includes a bent tube body (441), a skin (442), a threading ring (443), a torsion spring (444), a pull rope (445), and a winding wheel (446). Placement slots are provided on both sides of the end opening of the adjusting tube (42). The placement slot near the first transverse tube (22) is located above one end opening of the adjusting tube (42), and the placement slot near the second transverse tube (32) is located below the other end opening of the adjusting tube (42). One part of the bent tube (441) is located in the placement groove, and the other part extends from the placement groove to the far end of the end opening of the adjusting tube (42). The bent tube (441) is composed of a plurality of axially hinged support tubes (4411). The bent tube body (441) is arranged in three parallel groups. The first group is connected to the placement groove, and the second and third groups of the bent tube body (441) are located outside the placement groove. The skin (442) is sleeved on the outside of the three groups of bent tube bodies (441) to form a bonding surface that can be squeezed and bonded to the textile fabric. The torsion spring (444) is located at the hinge of two adjacent tubes (4411). When the torsion spring (444) is in its natural state, it drives the two adjacent tubes (4411) to be axially parallel, so that the bent tube (441) is in a straight state in its natural state. The threading ring (443) is disposed on the inner wall of the support tube (4411). When the bent tube (441) is in a straight state, the threading rings (443) in the multiple support tubes (4411) are axially aligned. In the three sets of bent tubes (441) near the first transverse tube (22), the threading ring (443) is disposed on the upper inner wall of the support tube (4411) in the third set of bent tubes (441). In the three sets of bent tubes (441) near the second transverse tube (32), the threading ring (443) is disposed on the lower inner wall of the support tube (4411) in the second set of bent tubes (441). Two sets of the winding reels (446) are coaxially arranged on a connecting rod (432). The two sets of winding reels (446) correspond to the second and third sets of bent tubes (441), respectively. One end of the pull rope (445) is wound around the winding reels (446), and the other end passes through multiple threading loops (443) in sequence and is connected to the inner wall of the support tube (4411) furthest from the placement slot. As the servo motor (431) drives the adjusting tube (42) to rotate to an inclined state, two sets of winding wheels (446) on one of the connecting rods (432) rotate synchronously, causing one end of the pulling rope (445) to gradually wind around, so that the third set of bent tubes (441) near the first transverse tube (22) gradually changes from a straight state to a downward arc-shaped concave state, and pushes the corresponding fabric segment of the textile to be arc-shaped concave downward. At the same time, the second set of bent tubes (441) near the second transverse tube (32) gradually changes from a straight state to an upward arc-shaped convex state, and pushes the corresponding fabric segment of the textile to be arc-shaped convex upward.

7. The device for testing the UV resistance of textile fabrics according to claim 6, characterized in that, The arc-shaped ultraviolet sensor detection mechanism (6) includes a left sensor detection component (61) and a right sensor detection component (62). Both the left sensor detection component (61) and the right sensor detection component (62) are located between the frame (41) and the adjusting tube (42). The left sensor detection component (61) is used to detect the ultraviolet transmittance of the textile fabric at the downward arc-shaped depression, and the right sensor detection component (62) is used to detect the ultraviolet transmittance of the textile fabric at the upward arc-shaped convex part.

8. The device for testing the UV resistance of textile fabrics according to claim 7, characterized in that, The left-side sensor detection assembly (61) includes a left-side ultraviolet light source emitter (611) and a left-side ultraviolet light source detection sensor (612). The upper end of the opening of the adjusting tube (42) near the first transverse tube (22) is provided with a left-side L-shaped bracket (421). The left-side ultraviolet light source emitter (611) is located on the left-side L-shaped bracket (421). The left-side ultraviolet light source detection sensor (612) is located on the frame (41) and below the left-side ultraviolet light source emitter (611). When the servo motor (431) drives the adjusting tube (42) to rotate to an inclined state, the emitting end of the left-side ultraviolet light source emitter (611) rotates to the vertical position facing the receiving end of the left-side ultraviolet light source emitter (611). The end face shape of the receiving end of the left-side ultraviolet light source emitter (611) is an arc-shaped depression that matches the downward arc-shaped concave section of the textile fabric. The right-side sensor detection assembly (62) includes a right-side ultraviolet light source emitter (621), a right-side ultraviolet light source detection sensor (622), and a cylinder (623). The upper end of the adjusting tube (42) near the opening of the second transverse tube (32) is provided with a right-side L-shaped bracket (422). The right-side ultraviolet light source emitter (621) is mounted on the right-side L-shaped bracket (422). The cylinder (623) is mounted on the frame (41), and its piston rod extends vertically upwards. The right-side ultraviolet light source detection sensor (622) is mounted on the piston rod of the cylinder (623) and is located below the right-side ultraviolet light source emitter (621). When the servo motor (431) drives the adjusting tube (42) to rotate to the tilted state, the emitting end of the right ultraviolet light source emitter (621) rotates to be vertically facing the receiving end of the right ultraviolet light source emitter (621). The cylinder (623) drives the receiving end of the right ultraviolet light source emitter (621) to move upward and close to the emitting end of the right ultraviolet light source emitter (621). The end face shape of the receiving end of the right ultraviolet light source emitter (621) is an arc protrusion that matches the upward arc protrusion of the fabric.

9. The device for testing the UV resistance of textile fabrics according to claim 8, characterized in that, The frame (41) is provided with a limiting block (411). When the servo motor (431) drives the adjusting tube (42) to rotate to an inclined state, the limiting block (411) abuts against the outer wall of the adjusting tube (42) to restrict the continued movement of the adjusting tube (42).

10. A device for testing the UV resistance of textile fabrics according to any one of claims 1-9, characterized in that, The unwinding mechanism (1) includes an unwinding frame (11), an unwinding wheel (12), and a rotating motor (13). The unwinding wheel (12) is rotatably mounted on the unwinding frame (11), and the rotating motor (13) is mounted on the unwinding frame (11). The output shaft of the rotating motor (13) is coaxially connected to the unwinding wheel (12) to drive the unwinding wheel (12) to rotate.

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