An ultraviolet shielding effect testing device for textile fabric detection and a testing method thereof

Abstract

This invention belongs to the field of textile fabric testing technology, and discloses a device and method for testing the ultraviolet (UV) blocking effect of textile fabrics. The device includes a testing instrument, a control panel, a moving platform, a reciprocating plate, and a feeding and flattening mechanism. The feeding and flattening mechanism consists of a feeding and flattening component, two sets of winding components, and a reciprocating adjustment component. The winding components use levers, springs, and locking pins to quickly clamp the fabric ends. The feeding and flattening component, driven by a speed-increasing transmission, rotates two flattening belts in opposite directions, unfolding the fabric along its width. The reciprocating adjustment component uses a bidirectional screw to drive a V-shaped scraper and a carding roller to move reciprocally, completing the longitudinal flattening of the fabric. The moving platform moves the reciprocating plate in multiple directions, enabling comprehensive testing by the testing instrument. The control panel can record abnormal points and control the servo motor to quickly re-inspect in both directions. The fabric can be flipped after being released at both ends to complete double-sided testing. This device has a compact structure, is easy to operate, and achieves intelligent and double-sided testing, effectively improving the accuracy of the testing.

Description

Technical Field

[0001] This invention relates to the field of textile fabric testing technology, specifically to a device and method for testing the ultraviolet (UV) blocking effect of textile fabrics. Background Technology

[0002] Ultraviolet (UV) blocking effect is a crucial indicator for evaluating the protective performance of textile fabrics, particularly applicable to sun-protective clothing, sun-shading fabrics, and outdoor protective equipment. As consumers increasingly demand higher levels of functionality and health protection in textiles, greater demands are being placed on the accuracy and efficiency of UV blocking effect testing. Currently, common UV blocking effect testing devices typically consist of a detector, a light source system, a sample stage, and a data processing module. By placing the fabric under the detector, the UV light source irradiates it, and the intensity of UV radiation transmitted through the fabric is received, thereby calculating the UV blocking rate.

[0003] In existing technologies, to ensure the accuracy and repeatability of test results, the fabric sample must be laid flat and fixed in the test area before testing. However, traditional testing devices have the following shortcomings in terms of fabric laying and fixing:

[0004] First, fabric is prone to wrinkles or uneven tension during clamping. Existing devices mostly use manual flattening or simple pressing methods, which makes it difficult to achieve bidirectional uniform flattening of the fabric in both the width and length directions. This is especially true when the fabric has a certain degree of elasticity or softness, where wrinkles become more prominent, directly affecting the accuracy of the detection optical path and the reliability of the detection results.

[0005] Secondly, the fabric clamping and flattening operations are cumbersome and inefficient. Most testing equipment requires manual and repeated adjustments to the fabric position, making the operation steps complex and hindering rapid sample changes and continuous testing, thus limiting the efficiency of batch testing.

[0006] Third, there is a lack of flexible detection mechanisms for both sides of the fabric and local abnormal areas. After completing the front inspection, the existing equipment often requires re-clamping the fabric to perform the back inspection, which is inconvenient. At the same time, if suspicious defects or abnormal areas are found during the inspection process, it is difficult to quickly backtrack for re-inspection, which affects the completeness and accuracy of the inspection.

[0007] Fourth, the power transmission and motion synchronization of the leveling mechanism are poor. Some existing devices use multiple power sources to drive the leveling mechanism separately, which is complex in structure and difficult to control. This can easily lead to asynchronous motion, resulting in uneven leveling effect, or even pulling or damaging the fabric.

[0008] To address the aforementioned issues, existing technologies have introduced some improvements, such as employing negative pressure adsorption platforms, roller-type flattening mechanisms, or unidirectional stretching devices. However, these still fall short of meeting the integrated requirements of bilateral fabric unfolding, longitudinal flattening, front and back inspection, and re-inspection of abnormal areas. Therefore, there is an urgent need to provide a compact, easy-to-operate, effective flattening, and comprehensive UV blocking effect testing device to improve the automation level and reliability of textile fabric testing results. Summary of the Invention

[0009] The purpose of this invention is to provide a UV blocking effect testing device and method for textile fabric testing, in order to solve the problems mentioned in the background art, such as easy wrinkling when the fabric is laid out, cumbersome operation, lack of flexible detection mechanism for the front and back sides and abnormal areas, and poor synchronization of the laying mechanism.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a UV blocking effect testing device for textile fabrics, comprising a detector with an inspection window in the middle; a control panel fixedly installed on the front side of the detector; a moving platform with its bottom fixedly installed in the middle of the detector, the middle of which is hollow and directly above the inspection window; a U-shaped plate with its bottom fixedly connected to the top of the moving platform, the moving platform driving the U-shaped plate to move in different directions; and a feeding and leveling mechanism comprising a feeding and leveling component, a winding component, and a reciprocating adjustment component. The feeding and leveling component is fixedly installed on the top of the U-shaped plate, two sets of winding components are provided for fixing the two ends of the fabric respectively, and the reciprocating adjustment component is located above the U-shaped plate and opposite to one of the winding components.

[0011] Preferably, the feeding and leveling assembly includes a first transmission box, a servo motor, a drive rod, a first driving gear, a first rotating shaft, a first stepped gear, a second rotating shaft, a first driven gear, a first bevel gear, a first fixed support, a third rotating shaft, a second bevel gear, a first transmission wheel, a fixed plate, a fourth rotating shaft, a leveling belt, and a guide plate; two first transmission boxes are provided, and the bottoms of the two first transmission boxes are fixedly connected to the top of the ribbed plate; the outer surface of the servo motor is fixedly mounted on the side of the first transmission box; the outer surfaces of both ends of the drive rod are rotatably connected to the inner surface of the first transmission box, and the ends of the drive rod are fixedly connected to the output end of the servo motor; the inner surfaces of the first driving gear are respectively fixedly sleeved with the outer surfaces of both ends of the drive rod, and are located inside the first transmission box; the outer surfaces of both ends of the first rotating shaft are rotatably connected to the inner surface of the first transmission box; the inner surface of the first stepped gear is fixedly sleeved with the outer surface of the middle part of the first rotating shaft, and the small tooth surface of the first stepped gear meshes with the outer edge of the first driving gear; the outer surfaces of both ends of the second rotating shaft are fixedly sleeved with the outer surface of the first transmission box. The inner surfaces are rotatably connected; the inner surface of the first driven gear is fixedly sleeved with the outer surface of the second rotating shaft, and the outer edge of the first driven gear meshes with the large tooth surface of the first stepped gear; the inner surface of the first tooth cone is fixedly sleeved with the outer surface of the second rotating shaft and is located outside the first transmission box; the outer surface of the first fixed support is fixedly connected with the side of the first transmission box; the outer surface of the middle part of the third rotating shaft is rotatably connected with the inner surface of the first fixed support; the inner surface of the second tooth cone is fixedly sleeved with the end of the third rotating shaft, and the outer edge of the second tooth cone meshes with the first tooth cone; the inner surface of the first transmission wheel is fixedly sleeved with the end of the third rotating shaft; the two sides of the fixed plate are fixedly connected with the side of the first transmission box; the outer surface of the fourth rotating shaft is rotatably connected with the inner surface of the fixed plate, and the inner surface of the other first transmission wheel is fixedly sleeved on the outer surface of the fourth rotating shaft; the flat belt is sleeved on the outer surface of the first transmission wheel, and the two flat belts are symmetrical; the outer surface of the guide plate is fixedly connected with the side of the first transmission box for supporting and guiding the fabric.

[0012] Preferably, one set of the winding assembly is installed on the outer surface of the middle part of the drive rod, and the other set of the winding assembly is installed on the outer surface of the middle part of the driven rod; the winding assembly includes a fixed roller, an arc-shaped clamping plate, a sliding groove, a spring, a locking pin, and a lever; the inner surface of the fixed roller is fixedly sleeved with the outer surface of the middle part of the drive rod or driven rod; the outer surface of the arc-shaped clamping plate is hinged with the inner surface of the fixed roller; the fixed roller has a sliding groove inside; the end of the spring is fixedly connected to the inner surface of the fixed roller; the end of the locking pin is fixedly connected to the outer surface of the other end of the spring, and the outer surface of the locking pin is slidably connected to the inner surface of the fixed roller; the outer surface of the lever is fixedly connected to the side of the locking pin, and the outer surface of the lever is slidably connected to the inner surface of the sliding groove.

[0013] Preferably, the reciprocating adjustment assembly includes a second transmission box, a driven rod, a second driven gear, a second transmission wheel, a synchronous belt, a fifth rotating shaft, a third driven gear, a third transmission box, a third toothed bevel, a second fixed support, a double-acting lead screw, a fourth toothed bevel, a moving table, a V-shaped scraper, and a combing roller; two second transmission boxes are provided, and the bottoms of the two second transmission boxes are fixedly connected to the top of the spiral plate; the outer surfaces of both ends of the driven rod are rotatably connected to the inner surfaces of the second transmission box; the inner surfaces of the second driven gears are respectively fixedly sleeved with the outer surfaces of both ends of the driven rod; two second transmission wheels are provided, one of which has its inner surface fixedly sleeved with the end of the drive rod, and the other has its inner surface fixedly sleeved with the end of the driven rod; the synchronous belt is sleeved on the outer surface of the second transmission wheel; the outer surface of the fifth rotating shaft is rotatably connected to the inner surface of the second transmission box; the third driven gear, the third transmission box, the third toothed bevel, the second fixed support, the double-acting lead screw, the fourth toothed bevel, the moving table, the V-shaped scraper, and the combing roller; two second transmission boxes are provided, and the bottoms of the two second transmission boxes are fixedly connected to the top of the spiral plate; the outer surfaces of the driven rods are rotatably sleeved with the outer surfaces of the second transmission wheels; the outer surfaces of the second driven gears are rotatably connected to the outer surfaces of the second transmission wheels; the outer surfaces of the fifth rotating shaft are rotatably connected to the inner surfaces of the second transmission box; the third driven gear, the third transmission box, the third toothed bevel, the fifth rotating shaft ... The inner surface of the gear is fixedly sleeved with the end of the fifth rotating shaft; the outer surface of the third transmission box is fixedly connected to the side of the second transmission box, and the outer surface of the fifth rotating shaft is rotatably connected to the inner surface of the third transmission box; the inner surface of the third tooth cone is fixedly sleeved with the end of the fifth rotating shaft; the bottom of the second fixed support is fixedly connected to the top of the U-shaped plate, and the two second fixed supports are located below the guide plate; the outer surfaces of both ends of the bidirectional lead screw are rotatably connected to the inner surfaces of the second fixed support and the third transmission box, respectively; the inner surface of the fourth tooth cone is fixedly sleeved with the outer surface of the bidirectional lead screw, and the outer edge of the fourth tooth cone meshes with the third tooth cone; the inner surfaces of both ends of the moving table are threadedly connected to the outer surfaces of the bidirectional lead screw, respectively; the bottom of the V-shaped scraper is fixedly connected to the middle of the moving table; two combing rollers are provided, and the outer surfaces of both ends of the two combing rollers are rotatably connected to the inner surface of the top of the moving table, respectively.

[0014] Preferably, the number of teeth on the large tooth surface of the first stepped gear is greater than the number of teeth on the first driven gear, forming a speed-increasing transmission structure.

[0015] Preferably, the flat-lay strips are symmetrically arranged, and the two flat-lay strips rotate in opposite directions, for spreading the fabric bidirectionally along the width direction.

[0016] Preferably, the bidirectional lead screw has two sections of threads with opposite directions of rotation, and the moving table is an integral component with its two ends respectively engaged with the two sections of threads, and performs reciprocating linear motion under the drive of the bidirectional lead screw.

[0017] Preferably, the tip of the V-shaped scraper faces the fabric feeding direction, and the combing rollers are symmetrically arranged on both sides of the V-shaped scraper.

[0018] Preferably, the control panel is electrically connected to the detector, the moving platform, and the servo motor respectively, and is used to adjust the movement direction of the moving platform and the speed of the servo motor in real time, and to record the location of abnormal areas that occur during the detection process.

[0019] A device for testing the ultraviolet (UV) blocking effect of textile fabrics, and the specific operating steps of the testing method are as follows:

[0020] Step 1: Fix one end of the fabric. The operator moves the lever along the sliding groove to compress the spring, opening the arc-shaped clamp on the fixed roller. The end of the fabric to be tested is placed into the clamping surface of the fixed roller, and then the arc-shaped clamp is closed, allowing the locking pin to engage inside the fixed roller, thus fixing one end of the fabric. Step 2: Tension the fabric. Start the servo motor, driving the drive rod to rotate, causing the roll assembly to wind the fabric to the appropriate tension. Then, turn off the servo motor. Step 3: Fix and flatten the other end of the fabric. Pass the other end of the fabric through the gap between the flattening belt and the guide plate, and then through the gap between the carding roller and the V-shaped scraper. Place this end into the roll assembly coaxial with the driven rod, repeating the clamping action of Step 1 to fix both ends of the fabric. Start the servo motor again, driving the rod to rotate. Power is transmitted synchronously through two paths, simultaneously winding the fabric evenly along its width direction through the rapid rotation of the flattening belt. Step 1: Unfolding and spreading the fabric longitudinally using the reciprocating movement of the V-shaped scraper and carding rollers; Step 4: Inspection and re-inspection. After the fabric is spread out, the moving platform drives the return plate to move in multiple directions, allowing the detector to perform a comprehensive, multi-angle UV blocking effect inspection on the fabric; If any suspicious defects or areas with abnormal blocking effects are found during the inspection, the control panel immediately records the location of the area and instructs the servo motor to reverse, causing the fabric to retreat to the abnormal area. The detector then re-inspects and confirms the area. After the re-inspection is completed, the servo motor rotates forward again to continue the subsequent inspection; Step 5: Reverse inspection and winding. After the front side of the fabric is inspected, the operator releases both ends of the fabric from the roll assembly, flips the fabric so that the reverse side is facing up, and repeats steps 1 to 4 for clamping, spreading, and inspection to complete the double-sided inspection; After the entire inspection process is completed, the fabric is wound forward or backward to complete the operation.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. In this invention, a fabric roll assembly is provided, including a fixed roller, an arc-shaped clamping plate, a spring, a locking pin, and a lever. The operator can move the lever along the sliding groove to compress the spring and open the arc-shaped clamping plate, enabling rapid insertion of the fabric end. Releasing the lever causes the spring to return to its original position, engaging the locking pin into the fixed roller to complete the clamping and fixing. This structure enables rapid clamping and releasing of both ends of the fabric, is easy to operate, and provides reliable clamping, effectively improving loading and unloading efficiency. Furthermore, both ends of the fabric can be fixed using the same fabric roll assembly, facilitating subsequent flipping for reverse side inspection without requiring equipment replacement or re-clamping, demonstrating strong adaptability.

[0023] 2. In this invention, by setting up a feeding and flattening assembly, including two symmetrically arranged flattening belts, a speed-increasing transmission structure formed by a first stepped gear and a first driven gear, and a reversing transmission between a first toothed bevel and a second toothed bevel, the two flattening belts achieve high rotational speeds and rotate in opposite directions under the drive of a servo motor. After the fabric passes through the gap between the flattening belt and the guide plate, the two flattening belts rotate rapidly, synchronously and evenly spreading the fabric to both sides along its width direction, effectively eliminating wrinkles in the width direction of the fabric, ensuring that the fabric remains flat within the detection area, and providing a reliable guarantee for improving the accuracy of ultraviolet blocking effect detection.

[0024] 3. In this invention, a reciprocating adjustment assembly is provided, including a bidirectional lead screw, a moving table, a V-shaped scraper, and a carding roller. The bidirectional lead screw has two sections of threads with opposite directions of rotation. The two ends of the moving table are respectively engaged with the two sections of threads, and under the drive of the bidirectional lead screw, it makes reciprocating linear motion, driving the V-shaped scraper and carding roller to move repeatedly on the fabric surface. The tip of the V-shaped scraper faces the fabric feeding direction, and in conjunction with the rolling carding of the carding roller, it can flatten the fabric longitudinally, effectively eliminating wrinkles in the length direction. At the same time, the drive rod and the driven rod are connected by a synchronous belt, so that the reciprocating adjustment assembly and the feeding and flattening assembly share the same power source, ensuring that the unfolding in the width direction and the flattening in the longitudinal direction are coordinated and synchronized, avoiding fabric pulling or damage caused by asynchrony. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present invention;

[0026] Figure 2 This is a schematic diagram of the feeding and leveling mechanism of the present invention;

[0027] Figure 3 This is a schematic diagram of the feeding and leveling assembly structure of the present invention;

[0028] Figure 4 This is a partial structural diagram of the feeding and leveling assembly of the present invention;

[0029] Figure 5 This is a schematic diagram of the roll assembly structure of the present invention;

[0030] Figure 6 This is a partially enlarged structural diagram of the roll assembly of the present invention;

[0031] Figure 7 This is a schematic diagram of the reciprocating adjustment component structure of the present invention;

[0032] Figure 8 This is a partial structural diagram of the reciprocating adjustment component of the present invention;

[0033] Figure 9This is an overall detection flowchart of the window span detection and control system of the present invention;

[0034] Figure 10 This is a flowchart of the abnormal window region coordinate return verification process of the present invention.

[0035] In the diagram: 1. Detector; 2. Inspection window; 3. Control panel; 4. Moving platform; 5. Reciprocating plate; 6. Feeding and leveling mechanism; 60. Feeding and leveling assembly; 61. Roll assembly; 62. Reciprocating adjustment assembly; 601. First transmission box; 602. Servo motor; 603. Drive rod; 604. First driving gear; 605. First rotating shaft; 606. First stepped gear; 607. Second rotating shaft; 608. First driven gear; 609. First bevel gear; 6010. First fixed support; 6011. Third rotating shaft; 6012. Second bevel gear; 6013. First transmission wheel; 6014. Fixed plate; 6015. 6016. Fourth rotating shaft; 6017. Flat belt; 6018. Guide plate; 610. Fixed roller; 611. Arc-shaped clamp; 612. Sliding groove; 613. Spring; 614. Locking pin; 615. Lever; 620. Second transmission box; 621. Driven rod; 622. Second driven gear; 623. Second transmission wheel; 624. Synchronous belt; 625. Fifth rotating shaft; 626. Third driven gear; 627. Third transmission box; 628. Third bevel gear; 629. Second fixed support; 6210. Double-acting lead screw; 6211. Fourth bevel gear; 6212. Moving table; 6213. V-shaped scraper; 6214. Combing roller. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Reference Figure 1-8As shown: A UV blocking effect testing device for textile fabrics includes a detector 1 with an inspection window 2 in the middle; a control panel 3 fixedly installed on the front side of the detector 1; a moving platform 4 with its bottom fixedly installed in the middle of the detector 1, the middle of which is hollow and directly above the inspection window 2; a U-shaped plate 5 with its bottom fixedly connected to the top of the moving platform 4, allowing the moving platform 4 to move the U-shaped plate 5 in different directions; and a feeding and leveling mechanism 6. The material laying mechanism 6 includes a feeding and laying component 60, a winding component 61, and a reciprocating adjustment component 62. The feeding and laying component 60 is fixedly installed on the top of the spiral plate 5. Two sets of winding components 61 are provided, which are used to fix the two ends of the fabric respectively. The reciprocating adjustment component 62 is located above the spiral plate 5 and opposite to one of the winding components 61. The spiral plate 5 is moved in multiple directions by the moving platform 4, so that the detector 1 can perform comprehensive and multi-angle ultraviolet blocking effect detection on the fabric. The feeding and laying mechanism 6 realizes the integrated operation of fabric clamping and laying, with a compact structure and high functional integration.

[0038] See Figures 2-4The feeding and leveling assembly 60 includes a first transmission box 601, a servo motor 602, a drive rod 603, a first driving gear 604, a first rotating shaft 605, a first stepped gear 606, a second rotating shaft 607, a first driven gear 608, a first bevel gear 609, a first fixed support 6010, a third rotating shaft 6011, a second bevel gear 6012, a first transmission wheel 6013, a fixed plate 6014, a fourth rotating shaft 6015, a leveling belt 6016, and a guide plate 6017. Two first transmission boxes 601 are provided, and the bottoms of the two first transmission boxes 601 are fixedly connected to the top of the spiral plate 5. The outer surface of the servo motor 602 is fixedly mounted on the first transmission box. The side of 601; the outer surfaces of both ends of the drive rod 603 are rotatably connected to the inner surface of the first transmission box 601, and the ends of the drive rod 603 are fixedly connected to the output end of the servo motor 602; the inner surface of the first active gear 604 is fixedly sleeved with the outer surfaces of both ends of the drive rod 603, and is located inside the first transmission box 601; the outer surfaces of both ends of the first rotating shaft 605 are rotatably connected to the inner surface of the first transmission box 601; the inner surface of the first stepped gear 606 is fixedly sleeved with the outer surface of the middle part of the first rotating shaft 605, and the small tooth surface of the first stepped gear 606 meshes with the outer edge of the first active gear 604; the outer surfaces of both ends of the second rotating shaft 607 are connected to the first The inner surface of the transmission housing 601 is rotatably connected; the inner surface of the first driven gear 608 is fixedly sleeved with the outer surface of the second rotating shaft 607, and the outer edge of the first driven gear 608 meshes with the large tooth surface of the first stepped gear 606; the inner surface of the first tooth cone 609 is fixedly sleeved with the outer surface of the second rotating shaft 607 and is located on the outside of the first transmission housing 601; the outer surface of the first fixed support 6010 is fixedly connected with the side of the first transmission housing 601; the outer surface of the middle part of the third rotating shaft 6011 is rotatably connected with the inner surface of the first fixed support 6010; the inner surface of the second tooth cone 6012 is fixedly sleeved with the end of the third rotating shaft 6011, and the second tooth cone... The outer edge of 6012 meshes with the first toothed cone 609; the inner surface of the first transmission wheel 6013 is fixedly sleeved with the end of the third rotating shaft 6011; the two sides of the fixing plate 6014 are fixedly connected to the side of the first transmission box 601; the outer surface of the fourth rotating shaft 6015 is rotatably connected to the inner surface of the fixing plate 6014, and the inner surface of the other first transmission wheel 6013 is fixedly sleeved on the outer surface of the fourth rotating shaft 6015; the flat belt 6016 is sleeved on the outer surface of the first transmission wheel 6013, and the two flat belts 6016 are symmetrical; the outer surface of the guide plate 6017 is fixedly connected to the side of the first transmission box 601, and is used for supporting and guiding the fabric.The speed-increasing transmission between the first stepped gear 606 and the first driven gear 608 enables the flat-lay belt 6016 to achieve a high rotational speed. The two flat-lay belts 6016 are symmetrically arranged and rotate in opposite directions, which allows the fabric to be evenly spread along its width, effectively eliminating wrinkles in the width direction and ensuring the fabric's flatness.

[0039] See Figures 5-6 One set of the winding assembly 61 is mounted on the outer surface of the middle part of the drive rod 603, and the other set of the winding assembly 61 is mounted on the outer surface of the middle part of the driven rod 621; the winding assembly 61 includes a fixed roller 610, an arc-shaped clamping plate 611, a sliding groove 612, a spring 613, a locking pin 614, and a lever 615; the inner surface of the fixed roller 610 is fixedly sleeved with the outer surface of the middle part of the drive rod 603 or the driven rod 621; the outer surface of the arc-shaped clamping plate 611 is hinged with the inner surface of the fixed roller 610; the sliding groove 612 is opened inside the fixed roller 610; the spring 613... The end of spring 613 is fixedly connected to the inner surface of the fixed roller 610; the end of spring 614 is fixedly connected to the outer surface of the other end of spring 613, and the outer surface of spring 614 is slidably connected to the inner surface of fixed roller 610; the outer surface of lever 615 is fixedly connected to the side of spring 614, and the outer surface of lever 615 is slidably connected to the inner surface of sliding groove 612; through the cooperation of lever 615, spring 613 and spring 614, the fabric end can be quickly clamped and released, which is easy to operate, reliable to clamp, and facilitates the fixing of both ends of the fabric and quick reversal during subsequent reverse inspection.

[0040] See Figures 7-8The reciprocating adjustment assembly 62 includes a second transmission box 620, a driven rod 621, a second driven gear 622, a second transmission wheel 623, a synchronous belt 624, a fifth rotating shaft 625, a third driven gear 626, a third transmission box 627, a third toothed bevel 628, a second fixed support 629, a bidirectional lead screw 6210, a fourth toothed bevel 6211, a moving table 6212, a V-shaped scraper 6213, and a combing roller 6214; two second transmission boxes 620 are provided, and the bottoms of the two second transmission boxes 620 are fixedly connected to the top of the spiral plate 5; the outer surfaces of both ends of the driven rod 621 are rotatably connected to the inner surfaces of the second transmission box 620; the second driven gear... The inner surfaces of wheel 622 are fixedly sleeved with the outer surfaces of both ends of driven rod 621; two second transmission wheels 623 are provided, one of which has its inner surface fixedly sleeved with the end of drive rod 603, and the other has its inner surface fixedly sleeved with the end of driven rod 621; the synchronous belt 624 is sleeved on the outer surface of the second transmission wheels 623; the outer surface of the fifth rotating shaft 625 is rotatably connected to the inner surface of the second transmission box 620; the inner surface of the third driven gear 626 is fixedly sleeved with the end of the fifth rotating shaft 625; the outer surface of the third transmission box 627 is fixedly connected to the side of the second transmission box 620. The outer surface of the fifth rotating shaft 625 is rotatably connected to the inner surface of the third transmission box 627; the inner surface of the third toothed cone 628 is fixedly sleeved with the end of the fifth rotating shaft 625; the bottom of the second fixed support 629 is fixedly connected to the top of the spiral plate 5, and the two second fixed supports 629 are located below the guide plate 6017; the outer surfaces of both ends of the bidirectional lead screw 6210 are rotatably connected to the second fixed support 629 and the inner surface of the third transmission box 627 respectively; the inner surface of the fourth toothed cone 6211 is fixedly sleeved with the outer surface of the bidirectional lead screw 6210, and the outer edge of the fourth toothed cone 6211 meshes with the third toothed cone 628; the moving table 621 2. The inner surfaces at both ends are threadedly connected to the outer surface of the bidirectional lead screw 6210; the bottom of the V-shaped scraper 6213 is fixedly connected to the middle of the moving table 6212; two carding rollers 6214 are provided, and the outer surfaces at both ends of the two carding rollers 6214 are rotatably connected to the inner surface of the top of the moving table 6212; the synchronous transmission of the flattening power and the reciprocating adjustment power is realized through the synchronous belt 624, ensuring that the unfolding in the width direction and the longitudinal flattening action are coordinated and consistent; the bidirectional lead screw 6210 drives the moving table 6212 to make reciprocating linear motion, driving the V-shaped scraper 6213 and the carding roller 6214 to move repeatedly on the fabric surface, effectively eliminating longitudinal wrinkles and avoiding fabric pulling or damage.

[0041] See Figures 3-4The number of teeth on the large tooth surface of the first stepped gear 606 is greater than the number of teeth on the first driven gear 608, forming a speed-increasing transmission structure; this allows the flat belt 6016 to obtain a higher rotational speed than the drive rod 603, ensuring that the fabric obtains sufficient unfolding force in the width direction and improving the flattening effect.

[0042] See Figure 4 The flat-laying strips 6016 are symmetrically arranged, and the two flat-laying strips 6016 rotate in opposite directions, which are used to spread the fabric in both directions along the width direction; to realize the simultaneous flattening of the fabric on both sides, effectively eliminate wrinkles in the width direction, and ensure that the fabric remains flat in the detection area.

[0043] See Figures 7-8 The bidirectional lead screw 6210 has two sections of threads with opposite directions of rotation. The moving table 6212 is an integral component, with its two ends respectively engaging with the two sections of threads. It performs reciprocating linear motion under the drive of the bidirectional lead screw 6210. The reciprocating drive of the bidirectional lead screw 6210 is realized through a single moving table 6212. The structure is simple and the movement is stable, ensuring that the V-shaped scraper 6213 and the carding roller 6214 move evenly on the fabric surface and improving the longitudinal flattening effect.

[0044] See Figure 8 The tip of the V-shaped scraper 6213 faces the feeding direction of the fabric, and the combing rollers 6214 are symmetrically arranged on both sides of the V-shaped scraper 6213. With the tip of the V-shaped scraper 6213 facing the feeding direction, the fabric can be effectively guided to spread out to both sides. The combing rollers are symmetrically arranged and roll and comb the fabric during the reciprocating movement to further eliminate wrinkles and improve the flattening quality.

[0045] See Figures 1-4 The control panel 3 is electrically connected to the detector 1, the moving platform 4 and the servo motor 602 respectively. It is used to adjust the movement direction of the moving platform 4 and the speed of the servo motor 602 in real time, and record the location of abnormal areas that occur during the detection process. It realizes intelligent control of the detection process, can adjust the motion parameters in real time according to the detection requirements, and automatically record the location of abnormal areas, which is convenient for subsequent re-inspection and improves the accuracy and reliability of the detection.

[0046] refer to Figures 9-10The detector 1 is equipped with a window span detection and control system, which is electrically connected to the detector 1, control panel 3, moving platform 4, and servo motor 602. The system uses the window area corresponding to the inspection window 2 as the sole detection reference area. The folding plate 5, driven by the moving platform 4, is positioned above the inspection window 2. After the feeding and flattening mechanism 6 clamps both ends of the fabric, unfolds it in the width direction, and flattens it in the length direction, the fabric forms a span detection state above the inspection window 2, under tension and away from the edge of the inspection window 2. The window span detection and control system only collects detection data, calculates the window area position coordinates, controls the retraction verification, and organizes double-sided continuous inspection in this span detection state. This binds the system control logic to the cooperative state of the inspection window 2, folding plate 5, roll assembly 61, flattening belt 6016, V-shaped scraper 6213, and carding roller 6214.

[0047] The window span detection and control system is located inside the housing of the detector 1 and includes: a window state determination module, a window tension reference module, a window trajectory detection module, an anomaly return verification module, and a double-sided mirror continuation inspection module. These modules are sequentially connected. The window state determination module first confirms whether the fabric has formed a detectable span. The window tension reference module establishes a reference tension distribution within the window under this state. The window trajectory detection module drives the moving platform 4 to perform window scanning under the constraint of the reference tension distribution. The anomaly return verification module performs point-to-point retraction verification of the abnormal area based on the scanning results. After the fabric is flipped, the double-sided mirror continuation inspection module calls the window coordinate relationship formed by the front detection to continue performing the reverse detection.

[0048] The window state determination module is located inside the detector 1. It is used to determine whether the fabric is in a suspended state above the inspection window 2 after the feeding and flattening mechanism 6 has completed clamping and flattening the fabric. The window state determination module obtains the relative distance between the lower surface of the fabric and the edge of the inspection window 2 through the window edge distance acquisition unit, receives the reciprocating positioning information of the moving stage 6212 in the reciprocating adjustment component 62 through the flattening trajectory positioning unit, and determines whether the two sets of winding components 61 located on the drive rod 603 and the driven rod 621 have entered the synchronous winding state through the winding synchronization confirmation unit. First, the winding synchronization confirmation unit confirms that the two ends of the fixed roller 610 have entered the common clamping state. Then, the flattening trajectory positioning unit confirms that the V-shaped scraper 6213 and the combing roller 6214 have completed at least one complete reciprocating flattening stroke. Subsequently, the window edge distance acquisition unit collects the fabric spacing in the corresponding areas on the four sides of the inspection window 2 to obtain the suspended state determination result, and sends the result to the window tension reference module.

[0049] The window edge spacing acquisition unit is installed inside the detector 1 and arranged around the inspection window 2. Preferably, four sets of through-beam displacement detectors are used, corresponding to the front edge, rear edge, left edge, and right edge of the inspection window 2, respectively, to acquire the spacing value from the lower surface of the fabric to the reference surface of the edge of the inspection window 2. The window edge spacing acquisition unit samples during the stable phase after the servo motor 602 stops accelerating, and continuously acquires at least 3 samples, taking the average value as the corresponding edge spacing.

[0050] The leveling trajectory positioning unit is electrically connected to the reciprocating adjustment assembly 62. Preferably, it confirms that the V-shaped scraper 6213 and the carding roller 6214 have covered the projected width of the inspection window 2 by reading the number of revolutions of the driving bidirectional lead screw 6210, the stroke end position of the moving stage 6212, and the rotation state of the fifth rotating shaft 625. The leveling trajectory positioning unit only outputs a leveling completion signal after the moving stage 6212 has completed the full movement from one end position to the other end position and back to the original end position.

[0051] The winding synchronization confirmation unit is connected to the rotation status acquisition points of the servo motor 602, drive rod 603, and driven rod 621, and is used to determine whether the two sets of winding assemblies 61 maintain synchronous winding after the fabric is clamped. Preferably, the winding synchronization confirmation unit makes the determination based on the angular displacement difference between the drive rod 603 and the driven rod 621. When the angular displacement difference does not exceed the preset synchronization tolerance, a synchronous winding signal is output.

[0052] After receiving the synchronous winding signal and the flattening completion signal, the controller of the window region state determination module reads the spacing values ​​on all four sides and determines whether the fabric has formed a suspension detection state based on whether the spacing on all four sides is within the preset suspension range. If the spacing on all four sides meets the requirements, it sends a modeling permission command to the window region tension reference module; if any side does not meet the requirements, it controls the detector 1 to remain in a waiting state, and at the same time prompts the control panel 3 to re-flatten or re-tension.

[0053] The window tension reference module is installed inside the detector 1. After the window state determination module confirms the suspension detection state, it establishes a tension reference distribution for the window area corresponding to the inspection window 2. The window tension reference module reads the angular displacement changes of the drive rod 603 and driven rod 621 during the tensioning stage through the holding angular displacement acquisition unit, reads the deflection of the fabric above the inspection window 2 through the window deflection acquisition unit, and maps the holding angular displacement and window deflection into a reference tension distribution within the window area through the reference tension mapping unit. First, the holding angular displacement acquisition unit obtains the holding changes at both ends, and then the window deflection acquisition unit obtains the deflection values ​​at the center and side positions of the inspection window 2. The reference tension mapping unit forms a tension reference matrix that corresponds only to the area of ​​the inspection window 2, and sends this tension reference matrix to the window trajectory detection module as the control basis for the scanning speed and verification dwell time of the moving platform 4.

[0054] The window tension reference module employs the following analysis method: In this device, the fabric is not laid flat on the solid sample stage, but is clamped by the fabric winding assembly 61 on the drive rod 603 side and the fabric winding assembly 61 on the driven rod 621 side, spanning the inspection window 2 to form a suspended detection state. Therefore, the tension within the window area cannot be directly applied using the empirical parameters of a typical flat plate detection device. Instead, it is necessary to convert the changes in the winding at both ends and the window deflection together into the reference tension of the corresponding area of ​​the inspection window 2. The reference tension mapping unit discretizes the window area into several window sampling points, calculates the tension reference value for each window sampling point, and uses it for subsequent trajectory detection.

[0055] Let the coiling angular displacement on the drive rod 603 side be θ. d The winding angular displacement on the driven rod 621 side is θ. f The equivalent radius of the fixed roller 610 is r. c The deflection at the center of window 2 is δ. c The normalized distance ρ between the i-th window sampling point and the center of inspection window 2 is i The equivalent tensile length caused by the coiling at both ends is:

[0056]

[0057] The reference tension value for the window area is expressed by the following formula:

[0058]

[0059] Among them, T i K represents the reference tension value of the i-th window sampling point, k1 is the winding elongation mapping coefficient, and k2 is the deflection correction coefficient.

[0060] The holding angular displacement acquisition units are respectively set at the rotation detection positions of the drive rod 603 and the driven rod 621, and are used to acquire the cumulative angular displacement of the winding assemblies 61 at both ends during the tension establishment stage. The holding angular displacement acquisition units can use incremental encoders or absolute encoders. The acquired angular displacement data is sent to the reference tension mapping unit after the servo motor 602 stops accelerating and stabilizes.

[0061] The window deflection acquisition unit is located inside the detector 1, facing downwards towards the inspection window 2, and is used to measure the deflection change of the fabric in the corresponding window area of ​​the inspection window 2. The window deflection acquisition unit has at least a central measuring point and two side measuring points on the left and right sides. The central measuring point outputs δ. c Side measuring points are used to correct whether the local deflection changes in the window area exceed the allowable range.

[0062] The reference tension mapping unit is built into the control board of the detector 1 and is used to map tension according to θ. d θ f rc δ c and ρ of each window sampling point i Generate the tension reference matrix. The reference tension mapping unit divides the projection area of ​​inspection window 2 into several equal-area panes, and takes the center of each pane as a window domain sampling point. T is calculated sequentially for each window domain sampling point. i After the calculation is completed, if T of any window sampling point... i If the tension falls below the preset lower limit, a re-tensioning command is output; if all conditions are met, the tension reference matrix is ​​sent to the window trajectory detection module.

[0063] The window trajectory detection module is installed inside the detector 1. After the tension reference matrix is ​​output by the window tension reference module, it controls the moving platform 4 to drive the guide plate 5 to perform scanning detection according to the window area corresponding to the inspection window 2. The window trajectory detection module discretizes the projection area of ​​the inspection window 2 into continuous detection coordinates through the window coordinate generation unit. The platform step scheduling unit sets the step distance and dwell time of the moving platform 4 according to the tension reference matrix. The ultraviolet sampling linkage unit triggers the detector 1 to complete ultraviolet transmission sampling at each detection coordinate. First, the window coordinate generation unit generates a scanning path covering the inspection window 2. Then, the platform step scheduling unit controls the moving platform 4 to move point by point. The ultraviolet sampling linkage unit completes sampling at each detection coordinate to obtain the occlusion detection data corresponding to the window area of ​​the inspection window 2. The abnormal points are sent to the abnormal return verification module.

[0064] The window trajectory detection module uses the opening range of inspection window 2 as a reference window. When the folding plate 5 moves under the drive of the moving platform 4, different local areas on the fabric align with inspection window 2 in sequence. The detector 1 only measures the local fabric area that currently overlaps with inspection window 2. Therefore, each detection point can be defined as a window coordinate.

[0065] Let the ultraviolet transmittance at the j-th detection point be I. j If the reference UV intensity under the empty window condition is I0, then the local occlusion rate of the j-th detection point is:

[0066]

[0067] To ensure a consistent assessment of the degree of abnormality, let the reference tension value corresponding to this detection point be T. j The mean baseline tension for the entire window area is Then the occlusion anomaly index of the j-th detection point is defined as:

[0068]

[0069] in, This represents the average local occlusion rate of normal points within the current scanning batch, where α and β are the occlusion deviation weight and tension deviation weight, respectively.

[0070] The window coordinate generation unit pre-reads the length, width, and installation coordinates relative to the moving platform 4 of the inspection window 2, and establishes a two-dimensional window coordinate system with the center of the inspection window 2 as the origin. The window coordinate generation unit divides the fabric area on the rectangular plate 5 into multi-row, multi-column detection units according to the window size of the inspection window 2, and generates a unique window coordinate number for each detection unit.

[0071] The platform stepping scheduling unit is electrically connected to the mobile platform 4 and is used to adjust the scanning strategy according to the tension reference matrix. When the tension reference value of a window sampling point in a certain row or column decreases, the platform stepping scheduling unit will reduce the stepping speed of that row or column and increase the dwell time; when the tension reference value increases, the platform stepping scheduling unit moves at the standard speed. This ensures that the motion control of the mobile platform 4 is consistent with the overhang state above the inspection window 2.

[0072] The ultraviolet sampling linkage unit is connected to the optical sampling part of the detector 1. After the moving platform 4 reaches the target window coordinates and stabilizes, it triggers the detector 1 to collect I. j The ultraviolet sampling linkage unit then calculates the local occlusion rate P based on the reference ultraviolet intensity I0. j Then, based on the tension reference value T corresponding to the window region coordinates... j Calculate the occlusion anomaly index Q j When Q j When the preset verification threshold is exceeded, the ultraviolet sampling linkage unit marks the detection point as an abnormal window coordinate and sends it to the abnormal feedback verification module; when Q j If the verification threshold is not exceeded, the detection point will be recorded in the normal detection record.

[0073] The anomaly return verification module is installed inside the detector 1. After the window region trajectory detection module marks the abnormal window region coordinates, it controls the servo motor 602 and the moving platform 4 to perform a backtracking verification of the abnormal window region coordinates. The anomaly return verification module saves the abnormal window region coordinates output by the window region trajectory detection module through the anomaly coordinate cache unit. The rollback compensation unit determines the rollback amount based on the rollback direction of the drive rod 603 and the rollback angular displacement when the abnormal point is formed. The verification trigger unit controls the servo motor 602 to reverse and triggers the detector 1 to resample the abnormal window region coordinates after the rollback is completed. First, the abnormal coordinate cache unit locks the abnormal window region coordinates. Then, the rollback compensation unit calculates the rollback distance in the fabric length direction. At the same time, the moving platform 4 realigns the abnormal window region coordinates. Then, the verification trigger unit performs a retest to obtain the verification result of the abnormal window region coordinates and writes the verification result back to the original detection record.

[0074] The abnormal return verification module utilizes the reversible characteristics of the drive rod 603 to bring the fabric part back to the corresponding position of the inspection window 2, and then the moving platform 4 completes the lateral coordinate alignment. Therefore, it must rely on the fabric winding assembly 61, servo motor 602, inspection window 2 and moving platform 4 in this device to achieve this.

[0075] The abnormal coordinate cache unit is located in the internal memory of the detector 1 and is used to record the abnormal window coordinate number, the sampling time of the abnormal point, and the corresponding P. j Q j T j And the angular displacement state of drive lever 603 at that time. The abnormal coordinate cache unit is indexed according to the window coordinate number so that it can be quickly retrieved during the review.

[0076] The rollback compensation unit is connected to the angular displacement acquisition points of the servo motor 602 and the drive rod 603, and is used to convert the length direction position when the abnormal window coordinates are generated into the rollback amount. Preferably, the rollback compensation unit calculates the length to be reversed based on the roll-up angular displacement when the abnormal point is formed and the equivalent radius of the fixed roller 610, and then corrects the rollback amount based on the synchronous roll-up state of the driven rod 621, so as to avoid insufficient local rollback of the fabric or exceeding the target point.

[0077] After obtaining the rollback amount, the verification trigger unit first controls the servo motor 602 to reverse, so that the fabric area corresponding to the abnormal point returns to above the inspection window 2; secondly, it controls the moving platform 4 to move the herringbone plate 5 to the horizontal position corresponding to the abnormal window coordinates; finally, it triggers the detector 1 to perform no less than two retests. The verification trigger unit takes the average value of the retest results and recalculates the occlusion abnormality index. If the occlusion abnormality index after retesting still exceeds the verification threshold, the window coordinates are output as a confirmed abnormal area; if it is lower than the verification threshold, the original abnormal mark is rewritten as a fluctuating area.

[0078] The double-sided mirror inspection module is installed inside the inspection instrument 1. After the front inspection is completed and the operator flips the fabric, it establishes a mirror inspection path for the reverse side based on the window coordinate relationship formed by the front inspection. The double-sided mirror inspection module records the end definitions of the drive rod 603 side and the driven rod 621 side at the end of the front inspection through the flipping reference registration unit, converts the front window coordinates to the reverse window coordinates through the mirror coordinate conversion unit, and controls the moving platform 4 to continue inspection according to the mirror coordinate sequence through the inspection path scheduling unit. First, the flipping reference registration unit records the fabric direction and the winding end relationship at the end of the front inspection, and then the mirror coordinate conversion unit generates the corresponding coordinates for the reverse inspection. The inspection path scheduling unit drives the moving platform 4 to run according to the mirror path, so that the inspection areas of the reverse inspection and the front inspection correspond one-to-one.

[0079] When the front-side inspection is completed, the flipping reference registration unit records the driving rod 603 side as the front reference end and the driven rod 621 side as the rear reference end, and simultaneously records the window coordinate number of the last inspection point in the coordinate system of inspection window 2. When the operator flips the fabric and re-clamps it, the flipping reference registration unit reads the new front and rear end correspondence to establish the basis for mirror conversion.

[0080] The mirror coordinate transformation unit transforms the coordinates of the front window region according to the central symmetry relationship of inspection window 2. If the window region coordinates of a certain detection point on the front are (x... j ,y j If the coordinates of the mirrored window region after flipping are (x...), then the coordinates of the mirrored window region after flipping are (x...). j ,-y j ) or (-x j ,y j The specific selection method is determined by the flipping direction recorded by the flipping reference registration unit and must be consistent within the same inspection batch. The mirror coordinate transformation unit transforms the coordinates of all inspected window regions to generate a reverse side continuation inspection coordinate sequence.

[0081] The follow-up inspection path scheduling unit is connected to the mobile platform 4 and the detector 1, and is used to control the mobile platform 4 to perform inspection according to the reverse side follow-up inspection coordinate sequence. If there is a confirmed abnormal area on the front side, the follow-up inspection path scheduling unit prioritizes scheduling the corresponding mirrored window coordinates for reverse side verification, and then performs a regular reverse side scan; if there is no confirmed abnormal area on the front side, the reverse side inspection is completed according to the regular path after mirroring. After the inspection is completed, the follow-up inspection path scheduling unit associates and stores the corresponding window coordinates of the front and back sides to form a double-sided inspection record.

[0082] The overhang detection state determination result output by the window state determination module serves as the activation condition for the window tension reference module. The tension reference matrix output by the window tension reference module serves as the trajectory control basis for the window trajectory detection module. The abnormal window coordinates output by the window trajectory detection module are entered into the abnormal return verification module for fixed-point verification. The confirmed abnormal area record generated by the abnormal return verification module serves as the basis for the double-sided mirror continuation inspection module to prioritize retesting after flipping. Each module unfolds continuously around the specific state of "the fabric forming an overhang detection state above the inspection window 2," forming a complete control link within the detector 1.

[0083] In practice, the operator first uses the lever 615, arc-shaped clamp 611, locking pin 614 and spring 613 to clamp the ends of the fabric on the two sets of roll assemblies 61. The servo motor 602 drives the drive rod 603 to tension the fabric. The flattening belt 6016 in the feeding and flattening assembly 60 works with the guide plate 6017 to unfold the fabric in the width direction. The bidirectional lead screw 6210, moving table 6212, V-shaped scraper 6213 and combing roller 6214 in the reciprocating adjustment assembly 62 complete the flattening in the length direction. Subsequently, the window region state determination module determines whether the fabric has formed a suspended detection state above inspection window 2. If so, the window region tension reference module establishes a tension reference matrix for the window region. The window region trajectory detection module controls the moving platform 4 to drive the guide plate 5 to perform window region scanning based on the tension reference matrix, and collects ultraviolet transmission data point by point through the detector 1. When abnormal window region coordinates occur, the abnormal return verification module controls the servo motor 602 to reverse and coordinates the moving platform 4 to return to the corresponding position to complete the fixed-point retest. After the front detection is completed, the operator flips the fabric, and the double-sided mirror continuation inspection module generates a reverse continuation inspection path based on the window region coordinate relationship established by the front detection to continue the reverse detection. This forms a window region suspended detection control system implemented inside the detector 1 and that can only operate in the suspended detection state of inspection window 2.

[0084] A device for testing the ultraviolet (UV) blocking effect of textile fabrics, and the specific operating steps of the testing method are as follows:

[0085] Step 1: Fix one end of the fabric. The operator moves the lever 615 along the sliding groove 612, compressing the spring 613. At this time, the locking pin 614 retracts, opening the arc-shaped clamping plate 611 on the fixed roller 610. After placing one end of the fabric to be tested into the clamping surface of the fixed roller 610, the lever 615 is released. The spring 613 returns to its original position, pushing the locking pin 614 out, closing the arc-shaped clamping plate 611, and causing the locking pin 614 to engage inside the fixed roller 610, thus completing the fixing of one end of the fabric.

[0086] Step 2: Fabric tensioning. Start the servo motor 602, which drives the drive rod 603 to rotate. The drive rod 603 drives the fabric winding assembly 61 installed in the middle to rotate, and then turns off the servo motor 602 after the fabric is wound up to the appropriate tension.

[0087] Step 3: Fix and flatten the other end of the fabric. Pass the other end of the fabric through the gap between the flattening belt 6016 and the guide plate 6017, and the gap between the carding roller 6214 and the V-shaped scraper 6213 in sequence. Then put the end into the roll assembly 61 coaxial with the driven rod 621 and repeat the clamping action of Step 1 to fix both ends of the fabric. The servo motor 602 is restarted, and the drive rod 603 rotates. Power is transmitted synchronously through two paths: In the first path, the drive rod 603 drives the first bevel gear 609 and the second bevel gear 6012 to reverse direction through the speed-increasing transmission of the first driving gear 604, the first stepped gear 606, and the first driven gear 608, causing the flattening belt 6016 to rotate rapidly. The two flattening belts 6016 rotate in opposite directions, spreading the fabric evenly along the width direction. In the second path, the drive rod 603 drives the driven rod 621 to rotate through the second transmission wheel 623 and the synchronous belt 624. The driven rod 621 drives the bidirectional lead screw 6210 to rotate through the reversing transmission of the second driven gear 622, the third driven gear 626, the third bevel gear 628, and the fourth bevel gear 6211. The bidirectional lead screw 6210 drives the moving table 6212 to perform reciprocating linear motion, causing the V-shaped scraper 6213 and the carding roller 6214 to move back and forth on the fabric surface, spreading the fabric longitudinally.

[0088] Step Four: Inspection and Re-inspection. After the fabric is laid flat, the moving platform 4 drives the guide plate 5 to move in multiple directions, allowing the detector 1 to perform a comprehensive, multi-angle inspection of the fabric's UV blocking effect. During the inspection, the control panel 3 adjusts the speed of the servo motor 602 and the movement direction of the moving platform 4 in real time to ensure accurate and efficient inspection. If a suspicious defect or an area with abnormal blocking effect is found, the control panel 3 immediately records the location of the area and instructs the servo motor 602 to reverse, causing the fabric to return to the abnormal area. The detector 1 then re-inspects and confirms the area. After the re-inspection is completed, the servo motor 602 rotates forward again to continue subsequent inspections.

[0089] Step 5: Reverse side inspection and winding. After the front side of the fabric has been inspected, the operator releases both ends of the fabric from the winding assembly 61, flips the fabric so that the reverse side is facing up, and repeats steps one through four for clamping, flattening, and inspection to complete the double-sided inspection. After the entire inspection process is completed, the fabric is wound forward or backward to complete the operation.

[0090] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for testing the ultraviolet (UV) blocking effect of textile fabrics, characterized in that: The device includes a detector (1) with an inspection window (2) in the middle; a control panel (3) fixedly installed on the front side of the detector (1); a moving platform (4) with its bottom fixedly installed in the middle of the detector (1), and the middle of the moving platform (4) being hollow and facing the top of the inspection window (2); and a U-shaped plate (5) with its bottom fixedly connected to the top of the moving platform (4). (4) Drive the retractable plate (5) to move in different directions; also includes a feeding and flattening mechanism (6), which includes a feeding and flattening component (60), a roll component (61) and a reciprocating adjustment component (62). The feeding and flattening component (60) is fixedly installed on the top of the retractable plate (5). The roll component (61) is provided in two sets, which are used to fix the two ends of the fabric respectively. The reciprocating adjustment component (62) is located above the retractable plate (5) and opposite to one of the roll components (61).

2. The ultraviolet blocking effect testing device for textile fabrics according to claim 1, characterized in that: The detector (1) is equipped with a window span detection control system. The window span detection control system is used to detect and control the fabric above the inspection window (2) after the fabric is fixed by two sets of roll assemblies (61) and laid flat by the feeding and flattening assembly (60) and the reciprocating adjustment assembly (62). The window span detection control system is electrically connected to the control panel (3), the moving platform (4) and the servo motor (602) respectively to control the detection of the fabric above the inspection window (2), the re-inspection of abnormal areas and the flipping and continued inspection.

3. The ultraviolet blocking effect testing device for textile fabrics according to claim 2, characterized in that: The window span detection control system includes a window state determination module. The window state determination module is used to determine whether the fabric is in a span detection state above the inspection window (2) after the two sets of roll assembly (61) have completed the fixing of the two ends of the fabric, in combination with the unfolding state of the feeding and flattening assembly (60) and the flattening state of the reciprocating adjustment assembly (62). The window state determination module only controls the detector (1) to enter the detection state when it determines that the fabric is above the inspection window (2) and in a span detection state.

4. The ultraviolet blocking effect testing device for textile fabrics according to claim 3, characterized in that: The window state determination module includes a window edge spacing acquisition unit, a flattening trajectory positioning unit, and a roll-up synchronization confirmation unit. The window edge spacing acquisition unit is located inside the detector (1) and corresponds to the edge area of ​​the inspection window (2), and is used to acquire the spacing information between the fabric and the edge of the inspection window (2). The flattening trajectory positioning unit is used to acquire the reciprocating stroke positioning information of the moving stage (6212) in the reciprocating adjustment component (62). The roll-up synchronization confirmation unit is used to acquire the roll-up synchronization information of the drive rod (603) and the driven rod (621). The window state determination module outputs the suspension detection state determination result based on the acquisition results of the window edge spacing acquisition unit, the flattening trajectory positioning unit, and the roll-up synchronization confirmation unit.

5. The ultraviolet blocking effect testing device for textile fabrics according to claim 2, characterized in that: The window span detection and control system includes a window tension reference module. After the window state determination module outputs the span detection state determination result, the window tension reference module combines the holding state of the drive rod (603) and the driven rod (621) and the deflection state of the fabric above the inspection window (2) to establish tension reference information for the corresponding inspection window (2) area, and sends the tension reference information to the window trajectory detection module to control the moving platform (4) to drive the guide plate (5) to perform detection motion.

6. The ultraviolet blocking effect testing device for textile fabrics according to claim 5, characterized in that: The window area suspension detection and control system includes a window area trajectory detection module. The window area trajectory detection module is used to generate a window area detection trajectory with the window area of ​​the inspection window (2) as the detection reference area, and control the moving platform (4) to drive the folding plate (5) to move step by step according to the tension reference information output by the window area tension reference module. When the folding plate (5) drives different areas of the fabric to correspond with the inspection window (2), the detector (1) is controlled to perform point-by-point detection on the fabric and record the location of abnormal areas.

7. The ultraviolet blocking effect testing device for textile fabrics according to claim 6, characterized in that: The window domain trajectory detection module includes a window domain coordinate generation unit, a platform stepping scheduling unit, and an ultraviolet sampling linkage unit. The window domain coordinate generation unit is used to establish window domain coordinates based on the relative position of the inspection window (2) and the moving platform (4). The platform stepping scheduling unit is used to control the moving platform (4) to move step by step based on the window domain coordinates. The ultraviolet sampling linkage unit is used to trigger the detector (1) to perform ultraviolet shading effect detection after the moving platform (4) reaches the corresponding window domain coordinates, and send the corresponding abnormal area position in the detection result to the abnormal return verification module.

8. The ultraviolet blocking effect testing device for textile fabrics according to claim 1, characterized in that: The reciprocating adjustment assembly (62) includes a second transmission box (620), a driven rod (621), a second driven gear (622), a second transmission wheel (623), a synchronous belt (624), a fifth rotating shaft (625), a third driven gear (626), a third transmission box (627), a third toothed bevel (628), a second fixed support (629), a double-acting lead screw (6210), a fourth toothed bevel (6211), a moving table (6212), a V-shaped scraper (6213), and a combing roller (6214); two second transmission boxes (620) are provided, and the bottoms of the two second transmission boxes (620) are fixedly connected to the top of the spiral plate (5); The outer surfaces of both ends of the driven rod (621) are rotatably connected to the inner surface of the second transmission box (620); the inner surface of the second driven gear (622) is fixedly sleeved with the outer surfaces of both ends of the driven rod (621); two second transmission wheels (623) are provided, one of which has its inner surface fixedly sleeved with the end of the drive rod (603), and the other has its inner surface fixedly sleeved with the end of the driven rod (621); the synchronous belt (624) is sleeved on the outer surface of the second transmission wheel (623); the outer surface of the fifth rotating shaft (625) rotates with the inner surface of the second transmission box (620). Connection; the inner surface of the third driven gear (626) is fixedly sleeved with the end of the fifth rotating shaft (625); the outer surface of the third transmission box (627) is fixedly connected with the side of the second transmission box (620), and the outer surface of the fifth rotating shaft (625) is rotatably connected with the inner surface of the third transmission box (627); the inner surface of the third tooth bevel (628) is fixedly sleeved with the end of the fifth rotating shaft (625); the bottom of the second fixed support (629) is fixedly connected with the top of the spiral plate (5), and the two second fixed supports (629) are located below the guide plate (6017); the outer surfaces of both ends of the bidirectional lead screw (6210) are respectively connected with the side of the second transmission box (620) and the side of the second transmission box (620), and the side of the fifth rotating shaft (625) is rotatably connected with the inner surface of the third transmission box (627); the inner surface of the third tooth bevel (628) is fixedly sleeved with the end of the fifth rotating shaft (625); the outer surface of the second fixed support (629) is fixedly connected with the top of the spiral plate (5), and the two second fixed supports (629) are located below the guide plate (6017); the outer surfaces of both ends of the bidirectional lead screw (6210) are respectively connected with the side of the second transmission box (620) and the side of the fifth rotating shaft (625); the side of the third transmission box (627) is fixedly sleeved with the side of the second transmission box (620), and the side of the fifth rotating shaft (625) is rotatably sleeved with the inner surface of the third transmission box (627); the side of the third transmission box (627) is fixedly sleeved with the side of the second rotating shaft (620), and the side of the fifth rotating shaft (625) is rotatably sleeved with the inner surface of the third transmission box ( The inner surfaces of the second fixed support (629) and the third transmission box (627) are rotatably connected; the inner surface of the fourth toothed cone (6211) is fixedly sleeved with the outer surface of the bidirectional lead screw (6210), and the outer edge of the fourth toothed cone (6211) meshes with the third toothed cone (628); the inner surfaces of both ends of the moving table (6212) are threadedly connected to the outer surface of the bidirectional lead screw (6210); the bottom of the V-shaped scraper (6213) is fixedly connected to the middle of the moving table (6212); two combing rollers (6214) are provided, and the outer surfaces of both ends of the two combing rollers (6214) are rotatably connected to the inner surface of the top of the moving table (6212).

9. The ultraviolet blocking effect testing device for textile fabrics according to claim 8, characterized in that: The flat strips (6016) are symmetrically arranged, and the two flat strips (6016) rotate in opposite directions, which is used to spread the fabric in both directions along the width direction.

10. A test method for testing the ultraviolet blocking effect of textile fabrics using the testing apparatus according to any one of claims 1 to 9, characterized in that, The process includes the following steps: Step 1: Fix one end of the fabric. The operator moves the lever (615) along the sliding groove (612) to compress the spring (613), opening the arc-shaped clamp (611) on the fixed roller (610). After placing one end of the fabric to be tested into the clamping surface of the fixed roller (610), the arc-shaped clamp (611) is closed, causing the locking pin (614) to engage inside the fixed roller (610), thus completing the fixing of one end of the fabric. Step 2: Tension the fabric. Start the servo motor (602) to drive the drive rod (603) to rotate, thereby driving the roll assembly. After the fabric is wound up to the appropriate tension, the servo motor (602) is turned off; Step 3: Fix and flatten the other end of the fabric, pass the other end of the fabric through the gap between the flattening belt (6016) and the guide plate (6017) and the gap between the combing roller (6214) and the V-shaped scraper (6213) in sequence, and then put the end into the winding assembly (61) coaxial with the driven rod (621), repeat the clamping action of step one, so that both ends of the fabric are fixed; start the servo motor (602) again, drive the rod (603) to rotate, and move Force is transmitted synchronously through two paths: the fabric is spread evenly along the width direction by the rapid rotation of the spreading belt (6016), and the fabric is laid flat longitudinally by the reciprocating movement of the V-shaped scraper (6213) and the combing roller (6214); Step 4: Inspection and re-inspection. After the fabric is laid flat, the moving platform (4) drives the return plate (5) to move in multiple directions, so that the detector (1) can perform a comprehensive and multi-angle UV blocking effect inspection on the fabric; If any suspicious defects or abnormal blocking effect areas are found during the inspection process, the control panel (3) immediately records the area. The servo motor (602) is reversed to move the fabric back to the abnormal area. The detector (1) re-inspects and confirms the area. After the re-inspection is completed, the servo motor (602) rotates forward again to continue the subsequent inspection. Step 5: Reverse inspection and winding. After the front inspection of the fabric is completed, the operator releases both ends of the fabric from the winding assembly (61), flips the fabric so that the reverse side is facing up, and clamps, flattens and inspects it again according to steps one to four to complete the double-sided inspection. After the entire inspection process is completed, the fabric is wound forward or wound in the reverse direction to complete the operation.

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