An ultraviolet light inspection aid

By integrating ultraviolet light inspection auxiliary equipment, ultraviolet light and a high-sensitivity camera are used to identify fabric defects, solving the problems of low detection efficiency and poor accuracy in existing technologies, and achieving efficient and accurate fabric defect detection.

CN224682075UActive Publication Date: 2026-08-25WUJIANG PIAOYI TEXTILE CO LTD
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Patent Information

Application Number
CN202521761466.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-19
Publication Date
2026-08-25
Estimated Expiration
2035-08-19

AI Technical Summary

Technical Problem

In the current technology for fabric defect detection, manual inspection is inefficient and has a high false detection rate. Automatic inspection systems based on visible light have limited ability to identify non-obvious defects, making it difficult to meet the needs of large-scale continuous production.

Method used

Design an auxiliary device for ultraviolet light inspection, which integrates a light panel and a recording device for ultraviolet light inspection. By irradiating the fabric with ultraviolet light and combining it with a high-sensitivity camera for image acquisition and analysis, the device can identify features such as fluorescent whitening agents, contaminants, or repair marks in the fabric. This avoids light obstruction and reflection interference, thereby improving the clarity of image acquisition and the accuracy of detection.

Benefits of technology

It significantly improves the accuracy and reliability of fabric quality control, effectively identifying minute defects and illegal additives that are difficult to detect with the naked eye, and solves the problems of low efficiency and poor accuracy in traditional testing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model embodiment provides a kind of ultraviolet light inspection auxiliary equipment, it is related to cloth inspection technical field, including inspection rack, the upper end of inspection rack is provided with inspection box, the inside one side of inspection box is provided with lamp plate, lamp plate is placed in the one side of inspection box, recording device is installed in the other side of inspection box, recording device and lamp plate are respectively opposite and set in the two sides of the cloth to be inspected, by integrating lamp plate with ultraviolet light inspection function on the inspection rack, the cloth to be inspected can continuously pass through the notch in the middle of inspection box, ultraviolet light irradiation and flaw identification can be completed in the cloth running process, recording device is opposite and arranged with lamp plate in the inside of inspection box, cloth is located between the two, facing layout ensures that ultraviolet light is evenly irradiated from one side Cloth, and the recording device on the other side can clearly capture the features such as flaw, pollution or uneven distribution of whitening agent on the surface of cloth due to fluorescence reaction.
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Description

Technical Field

[0001] This utility model relates to the field of fabric inspection technology, and in particular to an auxiliary device for ultraviolet light inspection. Background Technology

[0002] In the modern textile industry, fabric quality control is a crucial link in ensuring product quality and market competitiveness. During production, transportation, and storage, fabrics are highly susceptible to damage from oil stains, dirt, fiber damage, seam marks, and illegal additives (such as excessive use or adulteration of fluorescent whitening agents). These defects are often difficult to detect with the naked eye under normal visible light, but can seriously affect the safety, aesthetics, and compliance of the product.

[0003] Currently, fabric defect detection mainly relies on manual visual inspection or offline image acquisition systems based on visible light. Manual inspection is inefficient, highly susceptible to operator experience, fatigue, and ambient lighting, resulting in high rates of missed and false detections, making it difficult to meet the demands of large-scale continuous production. While traditional visible light-based automated inspection systems have improved efficiency to some extent, their ability to identify inconspicuous defects (such as trace amounts of oil stains, uneven distribution of fluorescent whitening agents, and chemical contamination) remains limited, leaving blind spots in detection. Utility Model Content

[0004] The purpose of this invention is to provide an ultraviolet light inspection auxiliary device that can avoid the problem of limited ability to identify non-obvious defects.

[0005] This utility model provides an auxiliary device for ultraviolet light inspection, comprising:

[0006] An inspection frame, wherein an inspection box is provided at the upper end of the inspection frame, and the two sides of the inspection box are bolted to one side of the inspection frame;

[0007] An inspection box is provided with a light panel on one side of its interior. The light panel is placed on one side of the inspection box, and a recording device is installed on the other side of the inspection box. The recording device and the light panel are respectively arranged opposite each other on both sides of the fabric to be inspected.

[0008] Preferably, the upper end of the inspection box is provided with an insertion slot, and a filter plate is movably installed inside the insertion slot.

[0009] Preferably, the filter plate is arranged in a T-shape and is movably inserted into the insertion slot.

[0010] Preferably, the lower end of the inspection frame is provided with a clamping part, and the lower end of the inspection box is provided with a light-transmitting part, which is located on one side of the fabric being transported from bottom to top.

[0011] Preferably, the clamping part includes a transverse bar fixedly installed inside the inspection frame and a connecting frame transversely installed at the positions of the two sets of transverse bars. The inner side of the connecting frame is provided with a clamping plate, and the cloth roll is placed in the middle of the two sets of clamping plates.

[0012] Preferably, a rotating wheel is provided on the inner side of the clamping plate, and the rotating wheel is rotatably mounted on the outside of the inner circular tube via a bearing.

[0013] Preferably, a cleaning section is provided at the lower end of the light-transmitting part, the cleaning section including a brush plate that conforms to the conveyed fabric for transmission, the brush plate being rotatably mounted on the upper end of the support rods provided on both sides.

[0014] Preferably, the outer side of the brush plate is provided with a rotating bolt, which is threaded inside the frame of the brush plate and is installed through the frame and fitted to the support rod.

[0015] Preferably, the two ends of the support rod are installed on the inner side of the support plates on both sides, and the upper end of the support plate is provided with an adjustment slot. The fastening bolts provided at the end of the support plate pass through the adjustment slot and are connected and fixed to the support rod.

[0016] Preferably, the inspection frame is provided with a rotating part in the middle, the rotating part including two sets of misaligned shafts for rotation, the misaligned shafts being installed on the inner side of the rotating plates at both ends.

[0017] This utility model provides an auxiliary device for ultraviolet (UV) inspection. By integrating a lamp panel with UV inspection functionality onto an inspection frame, the fabric to be inspected can continuously pass through a slot in the middle of the inspection chamber. UV irradiation and defect identification are completed during the fabric's movement. Inside the inspection chamber, the lamp panel and recording device are arranged opposite each other, with the fabric positioned between them. This opposing arrangement ensures that UV light evenly illuminates the fabric from one side, while the recording device on the other side can clearly capture features on the fabric surface such as defects, contamination, or uneven distribution of whitening agents caused by fluorescence reactions. This avoids light obstruction and reflection interference, improving the clarity of image acquisition and detection accuracy. For accuracy, the inspection box is detachably installed on one side of the inspection frame with bolts. The structure is stable and easy to maintain, replace or upgrade later. The light panel and recording equipment are fixed inside the inspection box. The overall modular design is conducive to standardized production and rapid on-site deployment. It uses ultraviolet light to excite the fluorescent properties of substances such as fluorescent whitening agents, contaminants or repair marks in the fabric. Combined with the recording equipment for image acquisition and analysis, it can effectively identify tiny defects, oil stains, splicing marks or illegal additives that are difficult to detect with the naked eye. It significantly improves the accuracy and reliability of fabric quality control and effectively solves the problems of low efficiency and poor accuracy of traditional manual visual inspection or offline inspection. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 This is a schematic diagram of the overall planar structure of an embodiment of the present utility model.

[0021] Figure 3 This is a schematic diagram of the inspection box structure according to an embodiment of the present utility model.

[0022] Figure 4 This is a schematic diagram of the cross-sectional structure of the inspection box according to an embodiment of the present utility model.

[0023] Figure 5 This is a schematic diagram of the clamping part structure according to an embodiment of the present utility model.

[0024] Figure 6 This is a schematic diagram of the cleaning section structure according to an embodiment of the present invention.

[0025] Figure 7 This is an embodiment of the present utility model. Figure 1 Enlarged structural diagram at point A in the middle.

[0026] Figure descriptions: 100, Inspection frame; 110, Clamping part; 111, Horizontal bar; 112, Connecting frame; 113, Clamping plate; 114, Rotating wheel; 120, Rotating part; 121, Misalignment shaft; 122, Rotating plate; 200, Inspection box; 210, Light plate; 220, Filter plate; 230, Insertion slot; 240, Recording device; 300, Light-transmitting part; 400, Cleaning part; 410, Brush plate; 420, Support rod; 430, Support plate. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of an ultraviolet light inspection auxiliary device.

[0029] like Figures 1-7 As shown, this utility model embodiment provides an ultraviolet light inspection auxiliary device, including an inspection frame 100 for inspecting fabric defects. An inspection box 200 for performing ultraviolet light inspection on the inspection frame 100 is provided at the upper end of the inspection frame 100. The two sides of the inspection box 200 are bolted to one side of the inspection frame 100.

[0030] An ultraviolet light source emitting lamp plate 210 is provided on one side of the inspection box 200. The lamp plate 210 is placed on one side of the inspection box 200. The fabric to be inspected passes through the slot opened in the middle of the inspection box 200. A recording device 240 for taking pictures of the fabric passing through on one side is installed on the other side of the inspection box 200. The recording device 240 and the lamp plate 210 are respectively arranged opposite to each other on both sides of the fabric to be inspected.

[0031] By integrating the UV inspection light panel 210 onto the inspection frame 100, the fabric to be inspected can continuously pass through the slot in the middle of the inspection box 200. UV irradiation and defect identification can be completed during the fabric's movement. Inside the inspection box 200, the light panel 210 and the recording device 240 are arranged opposite each other, with the fabric positioned between them. This opposing arrangement ensures that UV light evenly illuminates the fabric from one side, while the recording device 240 on the other side can clearly capture features such as defects, contamination, or uneven distribution of whitening agents on the fabric surface caused by fluorescence reactions. This avoids light obstruction and reflection interference, improving the clarity of image acquisition and the accuracy of detection. The inspection box 200... The light panel 210 and the recording device 240 are detachably bolted to one side of the inspection frame 100. The structure is stable and easy to maintain, replace or upgrade. Both the light panel 210 and the recording device 240 are fixed inside the inspection box 200. The overall modular design is conducive to standardized production and rapid on-site deployment. By using ultraviolet light to excite the fluorescent properties of substances such as fluorescent whitening agents, contaminants or repair marks in the fabric, combined with image acquisition and analysis by the recording device 240, it can effectively identify minute defects, oil stains, splicing marks or illegal additives that are difficult to detect with the naked eye. This significantly improves the accuracy and reliability of fabric quality control and effectively solves the problems of low efficiency and poor accuracy of traditional manual visual inspection or offline inspection.

[0032] Among them, the lamp panel 210 is a lamp that can emit ultraviolet light, especially those lamps that can work in the UV-A band (long-wave ultraviolet light, with a wavelength range of about 320-400 nanometers), such as UV-A LED lamps and fluorescent ultraviolet lamps.

[0033] Among them, the recording device 240 is a high-sensitivity ultraviolet camera. The high-sensitivity ultraviolet camera captures images, and the software performs post-processing, such as enhancing contrast and removing noise, thereby improving image quality and facilitating the analysis device to capture fabric defects.

[0034] The upper end of the inspection box 200 is provided with an insertion slot 230. Inside the insertion slot 230, a filter plate 220 is movably installed to assist the recording device 240 in improving the inspection effect. The filter plate 220 is placed between the recording device 240 and the fabric to be inspected. When using the ultraviolet light of the lamp plate 210 to identify the fabric, selecting a suitable filter plate 220 can significantly improve the observation effect, filter the light entering the camera, and only allow fluorescence signals of specific wavelengths to pass through, thereby improving image contrast and detection accuracy.

[0035] The filter plate 220 is arranged in a T-shape and is movably inserted into the insertion slot 230. Both ends are fixed with screws, which facilitates the disassembly and replacement of the filter plate 220.

[0036] The lower end of the inspection frame 100 is provided with a clamping part 110 for fixing the fabric roll. The positioning roller inside the clamping part 110 supports the fabric for transmission. The lower end of the inspection box 200 is provided with a light-transmitting part 300 for the operator to observe defects with the naked eye. The light-transmitting part 300 is located on one side of the fabric being transmitted from bottom to top. By being illuminated through the light-transmitting part 300, obvious defects in the fabric can be observed and detected with the naked eye, ensuring the inspection effect.

[0037] The clamping part 110 includes a transverse bar 111 fixedly installed inside the inspection frame 100 and a connecting frame 112 transversely installed at the positions of the two sets of transverse bars 111. The connecting frame 112 is fixed by fastening bolts at both ends. The inner side of the connecting frame 112 is provided with a clamping plate 113 for clamping and supporting the fabric roll. The fabric roll is placed in the middle of the two sets of clamping plates 113. When it is necessary to fix the fabric roll, the connecting frame 112 at both ends is moved to fix the fabric roll. Then, it is positioned by fastening bolts at both ends, which facilitates fixing fabric rolls of different lengths and makes adjustment convenient.

[0038] The inner side of the clamping plate 113 is provided with a rotating wheel 114 for supporting the fabric roll. The rotating wheel 114 is rotatably mounted on the outside of the inner round tube by bearings and is connected to it in a sleeve, so that the rotating wheel 114 can rotate during fabric conveying, which facilitates feeding.

[0039] The lower end of the light-transmitting section 300 is provided with a cleaning section 400 for brushing and cleaning the fabric. The cleaning section 400 includes a brush plate 410 for conveying the fabric. The brush plate 410 is rotatably mounted on the upper end of the support rods 420 provided on both sides. There are two sets of brush plates 410, which are respectively provided on both sides of the fabric. Before entering the inspection box 200 and the light-transmitting section 300, the fabric is brushed and cleaned by the brush plates 410 on both sides to remove the fibers adhering to the upper end and ensure the accuracy of subsequent inspection.

[0040] The outer side of the brush plate 410 is provided with rotating bolts for fixing the brush plate 410, and the bolts are threaded inside the frame of the brush plate 410, passing through the frame and fitting snugly with the support rod 420, so as to facilitate the adjustment of the fixing position and direction of the brush plate 410 according to the fabric.

[0041] The two ends of the support rod 420 are installed on the inner side of the support plates 430 on both sides. The upper end of the support plate 430 is provided with an adjustment slot. The fastening bolts provided at the end of the support plate 430 pass through the adjustment slot and are connected and fixed to the support rod 420, so that the relative position of the brush plates 410 on both sides can be adjusted for easy use.

[0042] The inspection frame 100 has a rotating part 120 in the middle for adjusting the tension of the fabric to be inspected. The rotating part 120 includes two sets of misaligned shafts 121 for rotation. The misaligned shafts 121 are installed on the inner side of the rotating plates 122 at both ends. The ends of the rotating plates 122 are connected to the output end of the stepper motor through connecting shafts. The fabric to be inspected is placed by passing through the two sets of misaligned shafts 121 in an alternating manner. The rotation angle of the misaligned shafts 121 can be adjusted by adjusting the stepper motor, thereby adjusting the misalignment angle during fabric transmission. The alternating path of the fabric transmission is changed, thereby adjusting the tension of the transmission.

[0043] The working principle of an ultraviolet (UV) light inspection auxiliary device is as follows: A lamp panel 210 with UV inspection function is integrated into the inspection frame 100. The fabric to be inspected can continuously pass through the slot in the middle of the inspection box 200. UV irradiation and defect identification are completed during the fabric's movement. Inside the inspection box 200, the lamp panel 210 and the recording device 240 are arranged opposite each other, with the fabric positioned between them. This opposing arrangement ensures that UV light evenly illuminates the fabric from one side, while the recording device 240 on the other side can clearly capture features on the fabric surface such as defects, contamination, or uneven distribution of whitening agents caused by fluorescence reactions. This avoids light obstruction and reflection interference, improving the clarity of image acquisition and the accuracy of detection. The inspection box 200 is detachably installed on one side of the inspection frame 100 by bolts. The structure is stable and easy to maintain, replace or upgrade later. The light panel 210 and the recording device 240 are both fixed inside the inspection box 200. The overall modular design is conducive to standardized production and rapid on-site deployment. By using ultraviolet light to excite the fluorescent properties of substances such as fluorescent whitening agents, contaminants or repair marks in the fabric, combined with image acquisition and analysis by the recording device 240, it can effectively identify minute defects, oil stains, splicing marks or illegal additives that are difficult to detect with the naked eye. It significantly improves the depth and reliability of fabric quality control and effectively solves the problems of low efficiency and poor accuracy of traditional manual visual inspection or offline inspection.

[0044] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. An auxiliary device for ultraviolet light inspection, characterized in that, include: An inspection frame is provided with an inspection box at the upper end of the inspection frame, and the two sides of the inspection box are bolted to one side of the inspection frame; An inspection box is provided with a light panel on one side of its interior. The light panel is placed on one side of the inspection box, and a recording device is installed on the other side of the inspection box. The recording device and the light panel are respectively arranged opposite each other on both sides of the fabric to be inspected.

2. The ultraviolet light inspection auxiliary device according to claim 1, characterized in that, The upper end of the inspection box is provided with an insertion slot, and a filter plate is movably installed inside the insertion slot.

3. The ultraviolet light inspection auxiliary device according to claim 2, characterized in that, The filter plates are arranged in a T-shape and are movably inserted into the insertion slot.

4. The ultraviolet light inspection auxiliary device according to claim 3, characterized in that, The lower end of the inspection frame is provided with a clamping part, and the lower end of the inspection box is provided with a light-transmitting part, which is located on one side of the fabric being transported from bottom to top.

5. The ultraviolet light inspection auxiliary device according to claim 4, characterized in that, The clamping part includes a transverse bar fixedly installed inside the inspection frame and a connecting frame transversely installed at the positions of the two sets of transverse bars. The inner side of the connecting frame is provided with a clamping plate, and the cloth roll is placed in the middle of the two sets of clamping plates.

6. The ultraviolet light inspection auxiliary device according to claim 5, characterized in that, The clamping plate has a rotating wheel on its inner side, which is rotatably mounted on the outside of the inner circular tube via a bearing.

7. The ultraviolet light inspection auxiliary device according to claim 6, characterized in that, A cleaning section is provided at the lower end of the light-transmitting part. The cleaning section includes a brush plate that adheres to the conveyed fabric for transmission. The brush plate is rotatably mounted on the upper end of the support rods provided on both sides.

8. The ultraviolet light inspection auxiliary device according to claim 7, characterized in that, The outer side of the brush plate is provided with rotating bolts, which are threaded inside the frame of the brush plate and are installed through the frame and in close contact with the support rod.

9. The ultraviolet light inspection auxiliary device according to claim 8, characterized in that, The two ends of the support rod are installed on the inner side of the support plates on both sides. The upper end of the support plate is provided with an adjustment slot, and the fastening bolts provided at the end of the support plate pass through the adjustment slot and are connected and fixed to the support rod.

10. The ultraviolet light inspection auxiliary device according to claim 9, characterized in that, The inspection frame is provided with a rotating part in the middle, and the rotating part includes two sets of misaligned shafts for rotation, which are installed on the inner side of the rotating plates at both ends.