A webbing visual inspection mechanism

Abstract

The application provides a kind of braid visual detection mechanism, comprising: rack, detection mechanism and width adjusting mechanism;Detection mechanism acquires the image information of braid;Width adjusting mechanism automatically adjusts the width of channel according to braid width, and width adjusting mechanism includes at least one set of adjusting assembly, each set of adjusting assembly includes: support rod, screw rod, drive motor and limit block;Drive motor is connected with screw rod, drives screw rod reciprocating motion;Limit block is sleeved on screw rod, and reciprocating movement is made along with screw rod;Limit block and fixed ring form the limit channel that limit braid position between movable limit block, and channel width is controlled by computer adjusting system.The application can automatically adjust the width of channel according to braid width through width adjusting mechanism, realize that braid is always located in the detection center position of detection mechanism when detecting, improve the precision and adaptability of detection, and guarantee detection quality and efficiency.

Description

Technical Field

[0001] This application relates to the field of visual inspection technology, and more specifically, to a visual inspection mechanism for webbing. Background Technology

[0002] During the manufacturing process of webbing, due to fluctuations in the process, various defects such as dimensional deviations, color differences, dirt, rough edges, and snags often appear on the surface of the webbing, which affect consumers' experience with the product. Therefore, subsequent testing is required to improve product quality.

[0003] Currently, enterprises generally use manual visual inspection, but manual methods are easily affected by subjective factors. Machine vision technology, through the collaboration of industrial cameras, lenses and light sources, can replace the human eye to complete related inspection work.

[0004] Chinese Patent CN221078506 U discloses a visual inspection mechanism installed on a ribbon weaving machine, relating to the field of visual inspection technology. It includes a ribbon weaving machine body, an industrial camera, and a visual inspection host. A mounting plate is provided above the ribbon weaving machine body, an industrial camera is mounted in the lower center of the mounting plate, and a visual inspection host is mounted above the mounting plate. An illumination lamp is provided on the inner side of the supporting side plate. An adjustment assembly is provided between the mounting base and the supporting side plate, and the adjustment assembly includes a movable cavity, a gear disk, a rack, a connecting block, a limiting block, a limiting groove, and a motor.

[0005] When using this patented product, it can only inspect one side of the webbing, and cannot cover multiple angles and defects. Furthermore, due to installation limitations, it can only inspect a single type of product, lacking versatility. Summary of the Invention

[0006] In view of one of the defects in the prior art, the purpose of this application is to provide a webbing visual inspection mechanism.

[0007] A first aspect of this application provides a webbing visual inspection mechanism, comprising: frame; A visual inspection mechanism, mounted on the frame, is used to collect image information of the webbing; A width adjustment mechanism, mounted on the frame, is used to automatically adjust the width of the channel according to the width of the webbing; The width adjustment mechanism includes at least one set of adjustment components, which are arranged at multiple positions on the frame along the running path of the webbing, so that the webbing is always centered in the field of view of the vision inspection mechanism throughout the entire operation. Each adjustment assembly includes: a support rod and an adjustment component; The support rod is positioned below the adjustment assembly, and the webbing is slidable on the support rod. The position of the webbing on the support rod is adjusted by the adjustment assembly.

[0008] Optionally, the adjustment assembly includes a lead screw, a drive motor, a limit block, and a fixed limit ring; The drive motor is connected to the lead screw and is used to drive the lead screw to rotate; The limiting block is sleeved on the lead screw, and when the lead screw rotates, it drives the limiting block to reciprocate on the lead screw; The fixed limiting ring is disposed at one end of the lead screw, forming a limiting channel with the limiting block to limit the position of the webbing and adjust the position of the webbing.

[0009] Optionally, the lead screw includes a first lead screw and a second lead screw; the drive motor includes a first drive motor and a second drive motor; the limiting block includes a first limiting block and a second limiting block; and the fixed limiting ring includes a first limiting ring and a second limiting ring. The first drive motor is connected to one end of the first lead screw, the first limiting ring is connected to the other end of the first lead screw, and the first limiting block is sleeved on the first lead screw between the first drive motor and the first limiting ring. The second drive motor is connected to one end of the second lead screw, the second limiting ring is connected to the other end of the second lead screw, and the second fiber sleeve is fitted on the second lead screw between the second drive motor and the second limiting ring; The first limiting ring is connected to the second limiting ring.

[0010] Optionally, the frame is provided with a first detection position, a second detection position, and a third detection position; The first detection position, the second detection position, and the third detection position are all equipped with the visual detection mechanism, which is used to acquire images of different positions of the webbing.

[0011] Optionally, the visual inspection mechanism includes: A first camera, set at the first detection position, is used to acquire image information of the surface of the front side of the webbing; The second camera, located at the second detection position, is used to acquire image information of the surface and sides of the back of the webbing; A third camera, located at the third detection position, is used to acquire image information of the weave texture of the ribbon; The first light source assembly, the second light source assembly, and the third light source assembly are all mounted on the frame and correspond to the positions of the first camera, the second camera, and the third camera that capture the webbing, respectively, and are used to provide light sources for the first camera, the second camera, and the third camera, respectively. Each of the first, second, and third detection positions is equipped with an adjustable bracket, and the first, second, and third cameras are all mounted on the adjustable brackets and move on the brackets in a direction perpendicular to the plane of the webbing.

[0012] Optionally, the first light source assembly includes a first light source and a second light source, wherein the first light source and the second light source are arranged at a 60° angle. The second light source assembly includes a third light source, a fourth light source, and a fifth light source. The third light source and the fourth light source are disposed on opposite sides of the fifth light source, and the third light source and the fourth light source are arranged at a 60° angle. The fifth light source is a backlight source, fixed on the frame, and placed horizontally. The third light source assembly includes a sixth light source, which is arranged at a 60° angle to the horizontal direction. The second camera, together with the third and fourth light sources, acquires image information of the surface of the back of the webbing, while the second camera and the fifth light source acquire image information of the side of the webbing.

[0013] Optionally, the visual inspection mechanism further includes multiple light source mounting brackets fixed on the frame, which are used to install the first light source assembly, the second light source assembly, and the third light source assembly, respectively. The light source mounting bracket includes a first light source bracket, a second light source bracket, a third light source bracket, a fourth light source bracket, a fifth light source bracket, and a sixth light source bracket; The first light source, the second light source, the third light source, the fourth light source, the fifth light source, and the sixth light source are respectively disposed on the first light source bracket, the second light source bracket, the third light source bracket, the fourth light source bracket, the fifth light source bracket, and the sixth light source bracket; The first light source bracket, the second light source bracket, the third light source bracket, the fourth light source bracket, and the sixth light source bracket can all be adjusted within the range of 0-90°. The fifth light source is fixed on the frame by the fifth light source bracket.

[0014] Optionally, the adjustable bracket includes a first camera bracket, a second camera bracket, and a third camera bracket, which are respectively disposed at the first detection position, the second detection position, and the third detection position of the frame; The first camera, the second camera, and the third camera are all mounted on the first detection position, the second detection position, and the third detection position respectively via the first camera bracket, the second camera bracket, and the third camera bracket; The first camera bracket, the second camera bracket, and the third camera bracket are all equipped with movable supports, and the first camera, the second camera, and the third camera can slide through the movable supports.

[0015] Optionally, it also includes a transmission mechanism for pulling and tensioning the webbing, changing the direction of movement of the webbing, and providing different detection surfaces for the visual inspection mechanism; The transmission mechanism includes: a traction motor for providing power for the movement of the webbing and the required tension; The drive roller is fixed on the frame and connected to the traction motor, rotating with the traction motor; A passive roller, fixed on the frame and positioned close to the active roller, is used to clamp the webbing with the active roller, causing the webbing to move forward. Multiple reversing roller assemblies are mounted and fixed on the frame via mounting bases on the frame. They are used to support the webbing and change the running direction of the webbing, presenting the front, back and sides of the webbing to the vision inspection mechanism.

[0016] Optionally, it also includes a vision inspection system connected to the width adjustment structure and the vision inspection mechanism; The visual inspection system includes an industrial control host, a display, and an alarm light. The industrial control host controls multiple cameras in the visual inspection mechanism through an interface. The alarm light is used to issue an alarm reminder after identifying the defect information of the webbing; The display is used to show defect information of the webbing.

[0017] This application provides a webbing visual inspection mechanism that combines an inspection mechanism and a width adjustment mechanism. The inspection mechanism can collect webbing image information to detect the webbing, while the width adjustment mechanism can automatically adjust the channel width according to the width of the webbing and keep the webbing in the center of the field of view during inspection, thereby improving the accuracy and adaptability of the inspection and ensuring the quality and efficiency of the inspection.

[0018] Other technical effects resulting from the additional features will be further illustrated in the corresponding embodiments. Attached Figure Description

[0019] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram illustrating the structure of a webbing visual inspection mechanism according to an exemplary embodiment; Figure 2 This is a front view of a webbing vision inspection mechanism according to an exemplary embodiment; Figure 3 This is a side view of a webbing visual inspection mechanism according to an exemplary embodiment; In the diagram: 1. Visual inspection mechanism; 111. First camera; 112. Second camera; 113. Third camera; 12. First light source assembly; 13. Second light source assembly; 14. Third light source assembly; 121. First light source; 122. Second light source; 123. Third light source; 124. Fourth light source; 125. Fifth light source; 126. Sixth light source; 2. Transmission mechanism; 211. Traction motor; 220. Multiple reversing roller assembly; 221. First roller; 222. Second roller; 223. Third roller; 224. Fourth roller; 225. Active roller; 226. Passive roller; 3. Width adjustment mechanism; 31. Support rod; 32. Adjustment component; 310. Drive motor; 320. Lead screw; 330. Limiting block; 340. Fixed limiting ring; 311. First drive motor; 321. 331. First lead screw; 341. First limit block; 312. First limit ring; 322. Second drive motor; 333. Second lead screw; 342. Second limit block; 342. Second limit ring; 4. Vision inspection system; 401. Industrial control host; 402. Alarm light; 403. Display; 5. Adjustable bracket; 511. First camera bracket; 512. Second camera bracket; 513. Third camera bracket; 520. Light source mounting bracket; 521. First light source bracket; 522. Second light source bracket; 523. Fifth light source bracket; 524. Fourth light source bracket; 525. Third light source bracket; 526. Sixth light source bracket; 531. First roller bracket; 532. Second roller bracket; 100. Frame; 101. First detection position; 102. Second detection position; 103. Third detection position. Detailed Implementation

[0020] The present application will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present application, but do not limit the present application in any way. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all fall within the protection scope of the present application. Parts not described in detail in the following embodiments can be implemented using existing technology.

[0021] In the description of the embodiments of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0023] In the description of the embodiments in this application, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such processes, methods, products, or devices.

[0025] In existing technologies, webbing inspection mechanisms can only inspect one side of the webbing, failing to cover multiple angles and defects. Furthermore, due to installation limitations, they can only inspect a specific type of product, lacking versatility. To address these issues, this application provides a webbing visual inspection mechanism to resolve these problems.

[0026] Reference Figure 1 As shown in one embodiment of this application, a webbing visual inspection mechanism includes: a frame 100, a visual inspection mechanism 1, and a width adjustment mechanism 3.

[0027] The visual inspection mechanism 1 is mounted on the frame 100 and is used to collect image information of the webbing; the width adjustment mechanism 3 is mounted on the frame 100 and is used to automatically adjust the width of the channel according to the width of the webbing.

[0028] The width adjustment mechanism 3 includes at least one set of adjustment components 32, which are arranged at multiple positions along the running path of the webbing on the frame 100, so that the webbing is always centered in the field of vision of the vision inspection mechanism 1 throughout the entire operation. Each set of adjustment components 32 includes a support rod 31 and an adjustment component 32. The support rod 31 is located below the adjustment component 32, and the webbing can slide on the support rod 31. The position of the webbing on the support rod 31 is adjusted by adjusting the adjustment component 32.

[0029] Specifically, when the webbing visual inspection mechanism 1 is working, it is set on the frame 100 to collect image information of the passing webbing. At the same time, the width adjustment mechanism 3 includes at least one set of adjustment components 32. The adjustment components 32 are arranged at multiple positions along the running path of the webbing on the frame 100. During the running process, the webbing is placed on the support rod 31 and can slide. The adjustment components 32 automatically adjust the channel width according to the actual width of the webbing, thereby adjusting the position of the webbing on the support rod 31 to ensure that the webbing is always in the center of the field of vision of the visual inspection mechanism 1 throughout the entire running process.

[0030] In the above embodiments of this application, by setting up a visual inspection mechanism 1 to collect image information of the webbing and combining it with a width adjustment mechanism 3, the channel width can be automatically adjusted according to the width of the webbing, so that the webbing is always in the center of the field of view of the visual inspection mechanism 1. This ensures that the visual inspection mechanism 1 can acquire the webbing image completely and clearly, avoids inaccurate detection due to webbing position deviation, improves the accuracy and reliability of detection, and guarantees the quality of webbing detection.

[0031] It should be noted that the width adjustment mechanism 3 can be adjusted manually or automatically during adjustment. For example, in one specific implementation, the vision inspection mechanism 1 is fixed at the position of the frame 100, and the width of the webbing is manually input to drive the adjustment component 32 to achieve automatic adjustment of the webbing channel. In another specific implementation, the width of the webbing can be detected in real time by a width detection sensor, and the width of the webbing channel can be adjusted by driving the adjustment component 32 through a width-displacement lookup table pre-stored in the industrial control host 401, so that the webbing is always in the center of the field of view of the vision inspection mechanism 1 throughout the entire operation.

[0032] In some specific embodiments of this application, the adjustment component 32 includes a lead screw 320, a drive motor 310, a limit block 330, and a fixed limit ring 340.

[0033] The drive motor 310 is connected to the lead screw 320 and is used to drive the lead screw 320 to rotate. The limit block 330 is sleeved on the lead screw 320. When the lead screw 320 rotates, the limit block 330 is driven to reciprocate on the lead screw 320. The fixed limit ring 340 is set at one end of the lead screw 320 and forms a limit channel with the limit block 330 to limit the position of the webbing and adjust the position of the webbing.

[0034] Specifically, during the operation of the width adjustment mechanism 3, the drive motor 310 drives the connected lead screw 320 to rotate. The limiting block 330 is sleeved on the lead screw 320. As the lead screw 320 rotates, the limiting block 330 reciprocates along the length of the lead screw 320. The lead screw 320 is also equipped with a fixing ring. A limiting channel is formed between the limiting block 330 and the fixed limiting ring 340. As the limiting block 330 moves, the width of the channel changes, thereby automatically adjusting the channel width according to the actual width of the webbing to ensure that the webbing is always in the center of the field of view during inspection.

[0035] It should be noted that during operation, the webbing smoothly passes over the support rod 31 without passing through the lead screw 320. Although it does not pass through the lead screw 320, a flow channel with higher sides is formed between the limiting block 330 and the fixed limiting ring 340 on the lead screw 320. The webbing slides through the flow channel and then passes over the support rod 31, thereby limiting the lateral displacement of the webbing. Additionally, for example, in one specific implementation, the lead screw 310 and the limiting block 330 are threadedly connected. When the lead screw 310 rotates, the limiting block 330 can move on the lead screw 310, thereby adjusting the width of the channel.

[0036] In the above embodiments of this application, the drive motor 310 is connected to the lead screw 320. While driving the lead screw 320 to rotate, the lead screw 320 drives the limiting block 330 sleeved on the lead screw 320 to move back and forth. The fixed limiting ring 340 set at one end of the lead screw 320 and the limiting block 330 form a limiting channel, which can flexibly adjust the position of the webbing according to the actual situation of the webbing, so that the webbing can be quickly and accurately limited to a suitable position, ensuring that the webbing is always within the optimal detection range of the visual inspection mechanism 1, improving the accuracy and stability of visual inspection, providing a reliable guarantee for the quality inspection of the webbing, and avoiding detection errors caused by the positional deviation of the webbing during the inspection process.

[0037] Among them, by setting width adjustment components 3 at multiple positions on the frame 100, the lateral position of the webbing is continuously constrained to prevent it from shifting during the conveying process, thereby ensuring that it is always located in the center of the field of view of the vision inspection mechanism 1.

[0038] In some specific embodiments of this application, the lead screw 320 includes a first lead screw 321 and a second lead screw 322; the drive motor 310 includes a first drive motor 311 and a second drive motor 312; the limiting block 330 includes a first limiting block 331 and a second limiting block 332; and the fixed limiting ring 340 includes a first limiting ring 341 and a second limiting ring 342.

[0039] The first drive motor 311 is connected to one end of the first lead screw 321, and the first limiting ring 341 is connected to the other end of the first lead screw 321. The first limiting block 331 is sleeved on the first lead screw 321 and located between the first drive motor 311 and the first limiting ring 341. The second drive motor 312 is connected to one end of the second lead screw 322, and the second limiting ring 342 is connected to the other end of the second lead screw 322. The second limiting block 332 is sleeved on the second lead screw 322 and located between the second drive motor 312 and the second limiting ring 342. The first limiting ring 341 is connected to the second limiting ring 342.

[0040] The embodiments described above in this application construct an independent and coordinated width adjustment mechanism 3 by setting a first lead screw 321, a second lead screw 322, a first drive motor 311, a second drive motor 312, a first limiting block 331, a second limiting block 332, and a first limiting ring 341 and a second limiting ring 342 on a set of width adjustment components 32. This mechanism can simultaneously adjust the position and guide the transmission of multiple webbings independently, which not only improves the detection efficiency and enables parallel detection of multiple webbings, but also ensures that each webbing is accurately positioned in the optimal field of view of the visual inspection mechanism 1, greatly improving the accuracy and stability of the detection and meeting the production needs of large-scale, high-efficiency webbing inspection.

[0041] In some specific embodiments of this application, the rack 100 is provided with a first detection position 101, a second detection position 102 and a third detection position 103.

[0042] Visual inspection mechanisms 1 are provided on the first detection position 101, the second detection position 102 and the third detection position 103, which are used to acquire images of different positions of the webbing.

[0043] In the above embodiments of this application, by setting multiple detection positions on the frame 100, and each detection position is equipped with a vision inspection mechanism 1, comprehensive image acquisition can be performed from different positions of the webbing. Detailed information of the webbing in multiple dimensions and areas can be obtained, avoiding detection blind spots caused by a single detection position, improving the completeness and accuracy of the detection, and helping to detect various quality problems of the webbing in a timely manner.

[0044] In some specific embodiments of this application, the visual inspection mechanism 1 includes: a first camera 111, a second camera 112, a third camera 113, a first light source assembly 12, a second light source assembly 13, and a third light source assembly 14.

[0045] The first camera 111 is set at the first detection position 101 and is used to acquire image information of the surface of the front side of the webbing; the second camera 112 is set at the second detection position 102 and is used to acquire image information of the surface and sides of the back side of the webbing; the third camera 113 is set at the third detection position 103 and is used to acquire image information of the weaving texture of the webbing; the first light source assembly 12, the second light source assembly 13 and the third light source assembly 14 are all set on the frame 100 and correspond to the positions of the first camera 111, the second camera 112 and the third camera 113 acquiring the webbing, respectively, and are used to provide light sources for the first camera 111, the second camera 112 and the third camera 113.

[0046] Among them, the first detection position 101, the second detection position 102 and the third detection position 103 are all equipped with adjustable brackets 5, and the first camera 111, the second camera 112 and the third camera 113 are all mounted on the adjustable brackets 5 and move on the adjustable brackets 5 in a direction perpendicular to the plane of the webbing.

[0047] Specifically, during the visual inspection of the webbing, the first detection position 101, the second detection position 102, and the third detection position 103 are set on the frame 100. The first camera 111 is positioned on the adjustable bracket 5 in a direction perpendicular to the plane of the webbing, and then acquires the surface image information of the front of the webbing through the light source provided by the corresponding first light source component 12. In the second detection position 102, the second camera 112 is positioned by the adjustable bracket 5 and acquires the surface and side image information of the back of the webbing under the illumination of the second light source component 13. In the third detection position 103, the third camera 113 is positioned by the adjustable bracket 5 and acquires the weaving texture image information of the webbing under the illumination of the third light source component 14.

[0048] The embodiments described above, through the collaborative work of cameras at different detection positions, can comprehensively and accurately acquire image information from multiple aspects of the webbing, including the front, back, sides, and weaving texture, thus avoiding any omissions in the detection. The adjustable bracket 5 allows the camera to move along a direction perpendicular to the webbing plane, flexibly adjusting the shooting angle and distance to adapt to the detection needs of webbing of different specifications, ensuring the quality and clarity of the acquired images, and effectively improving the accuracy and comprehensiveness of visual inspection of the webbing.

[0049] In some specific embodiments of this application, the first light source assembly 12 includes a first light source 121 and a second light source 122, with the first light source 121 and the second light source 122 arranged at a 60° angle; the second light source assembly 13 includes a third light source 123, a fourth light source 124 and a fifth light source 125, with the third light source 123 and the fourth light source 124 arranged at a 60° angle between them, and the fifth light source 125 being a backlight source, fixed on the frame 100 and placed horizontally; the third light source assembly 14 includes a sixth light source 126, with the sixth light source 126 arranged at a 60° angle to the horizontal direction.

[0050] The second camera 112, together with the third light source 123 and the fourth light source 124, acquires image information of the surface of the back of the webbing, while the second camera 112 and the fifth light source 125 acquire image information of the side of the webbing.

[0051] In the above embodiments of this application, by arranging the first light source 121 and the second light source 122 in the first light source assembly 12 at a 60° angle, the front of the webbing is illuminated at a suitable angle, reducing reflection interference and enabling the first camera 111 to acquire a clear front image; the third and fourth light sources in the second light source assembly 13 cooperate with the fifth backlight source, and the 60° angle arrangement between the third light source 123 and the fourth light source 124 can clearly capture the surface image of the back of the webbing, while the fifth backlight source can highlight the side contour of the webbing, allowing the second camera 112 to accurately acquire side information; the sixth light source 126 of the third light source assembly 14 is at a 60° angle to the horizontal direction, which can provide ideal illumination for the third camera 113 to acquire the webbing weave texture. Through the combination and arrangement of multiple angles and types of light sources, the lighting conditions of the visual inspection mechanism 1 are optimized in all aspects, ensuring that each camera can acquire high-quality images.

[0052] In some specific embodiments of this application, the visual inspection mechanism 1 also includes multiple light source mounting brackets 520, which are fixed on the frame 100 and are used to install the first light source assembly 12, the second light source assembly 13 and the third light source assembly 14, respectively.

[0053] The light source mounting bracket 520 includes a first light source bracket 521, a second light source bracket 522, a third light source bracket 525, a fourth light source bracket 524, a fifth light source bracket 523, and a sixth light source bracket 526.

[0054] The first light source 121, the second light source 122, the third light source 123, the fourth light source 124, the fifth light source 125, and the sixth light source 126 are respectively set in the first light source bracket 521, the second light source bracket 522, the third light source bracket 525, the fourth light source bracket 524, the fifth light source bracket 523, and the sixth light source bracket 526.

[0055] Among them, the first light source bracket 521, the second light source bracket 522, the third light source bracket 525, the fourth light source bracket 524 and the sixth light source bracket 526 can all be adjusted within the range of 0-90°; the fifth light source 125 is fixed on the frame 100 through the fifth light source bracket 523.

[0056] In the embodiments described above, multiple light source mounting brackets 520 are fixed on the frame 100. The first light source 121, second light source 122, third light source 123, fourth light source 124, fifth light source 125, and sixth light source 126 are respectively mounted on the first light source bracket 521, second light source bracket 522, third light source bracket 525, fourth light source bracket 524, fifth light source bracket 523, and sixth light source bracket 526. The first to fourth and sixth light source brackets 526 have an adjustment range of 0-90°, allowing for flexible angle adjustment to adapt to different detection scenarios and needs. The fifth light source 125 is directly fixed to the frame 100 via the fifth light source bracket 523. This makes the light source installation more flexible and diverse, allowing for flexible adjustment of the illumination angle based on the material, color, thickness, and detection area of ​​the webbing. This provides optimal lighting conditions for the camera, effectively reducing interference factors such as shadows and reflections, improving the quality and clarity of image acquisition, and thus enhancing the accuracy and reliability of webbing visual inspection.

[0057] In some specific embodiments of this application, the adjustable bracket 5 includes a first camera bracket 511, a second camera bracket 512 and a third camera bracket 513, which are respectively set at the first detection position 101, the second detection position 102 and the third detection position 103 of the frame 100.

[0058] The first camera 111, the second camera 112, and the third camera 113 are all mounted on the first detection position 101, the second detection position 102, and the third detection position 103 respectively via the first camera bracket 511, the second camera bracket 512, and the third camera bracket 513.

[0059] The first camera bracket 511, the second camera bracket 512, and the third camera bracket 513 are all equipped with movable brackets, and the first camera 111, the second camera 112, and the third camera 113 can slide through the movable brackets.

[0060] It should be noted that the distances of the first camera 111, the second camera 112, and the third camera 113 from the webbing can be adjusted within 250-400mm depending on the width of the webbing.

[0061] In the above embodiments of this application, the adjustable bracket 5 includes a first camera bracket 511, a second camera bracket 512, and a third camera bracket 513 respectively disposed on the first detection position 101, the second detection position 102, and the third detection position 103 of the frame 100. The first camera 111, the second camera 112, and the third camera 113 are installed on the corresponding detection positions by means of the three camera brackets, and each camera bracket is equipped with a movable bracket. The first camera 111, the second camera 112, and the third camera 113 can slide through the movable bracket, which can flexibly adjust the position of the camera on the detection position, so as to accurately position the camera according to the actual detection needs, thereby better adapting to different detection scenarios and improving the accuracy and flexibility of detection.

[0062] In this application, the width adjustment mechanism 3 includes multiple sets of adjustment components 32, which are installed at different positions on the frame 100 and arranged in multiple directions along the webbing running path, so that the webbing is located at the center of the field of view of the vision inspection mechanism 1 throughout the entire operation; wherein, the channel width W satisfies the formula: W = nominal width of webbing + 0.5~1mm.

[0063] In some specific embodiments of this application, the detection mechanism also includes a transmission mechanism 2, which is used to pull and tension the webbing, change the direction of movement of the webbing, and provide different detection surfaces for the visual inspection mechanism 1; The transmission mechanism 2 includes: a traction motor 211 for providing power and tension for the movement of the webbing; an active roller 225 fixed on the frame 100 and connected to the traction motor 211, rotating with the traction motor 211; a passive roller 226 fixed on the frame 100 and positioned close to the active roller 225 for clamping the webbing with the active roller 225 to move the webbing forward; and multiple reversing roller assemblies 220 fixed on the frame 100 via mounting bases for supporting the webbing and changing its direction of travel, presenting the front, back, and sides of the webbing to the vision inspection mechanism 1.

[0064] In practice, the traction motor 211 is started to drive the reducer. The key pin installed on the reducer drives the drive roller 225 to roll. The drive roller 225 clamps the webbing with the driven roller 226 and is pulled forward. The reversing roller assembly a is installed on the fixed mounting base, which includes a first roller bracket 532 and a second roller bracket 531, containing a first roller 221 and a second roller 222; a third roller 223 and a fourth roller 224, which can change the direction of movement of the webbing, thereby providing different detection surfaces and detection areas for visual inspection.

[0065] The drive motor 310, connected to the lead screw 320 via a coupling, drives the movable limit switch to move. The channel width W formed by the limit block 330 and the fixed limit ring 340 satisfies the formula: W = nominal width of the webbing + (0.5~1mm). When webbing deviation is detected, the industrial control host 401 outputs a pulse signal (frequency 10kHz) to drive the motor 310 for fine-tuning, with each adjustment amount... When changing models, the industrial control host 401 calculates the pulse value based on the set webbing width and drives the motor 310 to move continuously, automatically forming the channel width.

[0066] In some specific embodiments of this application, the inspection mechanism also includes a vision inspection system 4, which is connected to the width adjustment structure and the vision inspection mechanism 1; the vision inspection system 4 includes an industrial control host 401, a display 403 and an alarm light 402.

[0067] The industrial control host 401 controls multiple cameras in the vision inspection mechanism 1 through an interface; the alarm light 402 is used to provide an alarm reminder after identifying the defect information of the webbing; the display 403 is used to display the defect information of the webbing.

[0068] The industrial control host 401 synchronously triggers three cameras via the GigE interface and executes a preset image processing algorithm to detect defects in the webbing. This image processing algorithm can be implemented using existing technology and is not an improvement of this application. For example: the first camera 111 acquires an image of the front of the webbing and uses a target detection algorithm to detect the color and texture of the front surface; the second camera 112 and the front light source acquire an image of the back of the webbing and use a target detection algorithm to detect the color and texture of the back surface; the second camera 112 and the back light source acquire images of the side of the webbing and use the Canny edge detection algorithm to detect anomalies such as fuzz on the side edges; the third camera 113 acquires an image of the surface texture of the webbing. The tilted light source is more effective at detecting surface protrusion defects, therefore it is used to detect anomalies such as fuzz and pilling on the webbing surface. After detection, a three-color alarm is triggered upon detection of a defect, and defect information is displayed on the monitor 403, prompting manual rework.

[0069] It should be noted that the following structure is added for the high elasticity webbing: a fiber Bragg grating tension sensor is added to the transmission mechanism 2 to monitor the tension of the webbing, and the tension value is fed back to the industrial control computer in real time. The industrial control computer then regulates the speed of the traction motor 211 to achieve overall tension and ensure stable detection.

[0070] It should be noted that the following structure is added for the high elasticity webbing: a fiber Bragg grating tension sensor is added to the transmission mechanism 2 to monitor the tension of the webbing, and the tension value is fed back to the industrial control computer in real time. The industrial control computer then regulates the speed of the traction motor to achieve overall tension and ensure stable detection.

[0071] The foregoing has described some specific embodiments of this application. It should be understood that this application is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the substantive content of this application. The above-described preferred features can be used in any combination without conflict.

Claims

1. A visual inspection mechanism for webbing, characterized in that, include: frame; A visual inspection mechanism, mounted on the frame, is used to collect image information of the webbing; A width adjustment mechanism, mounted on the frame, is used to automatically adjust the width of the channel according to the width of the webbing; The width adjustment mechanism includes at least one set of adjustment components, which are arranged at multiple positions on the frame along the running path of the webbing, so that the webbing is always centered in the field of view of the vision inspection mechanism throughout the entire operation. Each adjustment assembly includes: a support rod and an adjustment component; The support rod is positioned below the adjustment assembly, and the webbing is slidable on the support rod. The position of the webbing on the support rod is adjusted by the adjustment assembly.

2. The webbing visual inspection mechanism according to claim 1, characterized in that, The adjustment assembly includes a lead screw, a drive motor, a limit block, and a fixed limit ring; The drive motor is connected to the lead screw and is used to drive the lead screw to rotate; The limiting block is sleeved on the lead screw, and when the lead screw rotates, it drives the limiting block to reciprocate on the lead screw; The fixed limiting ring is disposed at one end of the lead screw, forming a limiting channel with the limiting block to limit the position of the webbing and adjust the position of the webbing.

3. The webbing visual inspection mechanism according to claim 2, characterized in that, The lead screw includes a first lead screw and a second lead screw; the drive motor includes a first drive motor and a second drive motor; the limiting block includes a first limiting block and a second limiting block; the fixed limiting ring includes a first limiting ring and a second limiting ring. The first drive motor is connected to one end of the first lead screw, the first limiting ring is connected to the other end of the first lead screw, and the first limiting block is sleeved on the first lead screw between the first drive motor and the first limiting ring. The second drive motor is connected to one end of the second lead screw, the second limiting ring is connected to the other end of the second lead screw, and the second limiting block is sleeved on the second lead screw between the second drive motor and the second limiting ring; The first limiting ring is connected to the second limiting ring.

4. The webbing visual inspection mechanism according to claim 1, characterized in that, The frame is equipped with a first detection position, a second detection position, and a third detection position; The first detection position, the second detection position, and the third detection position are all equipped with the visual detection mechanism, which is used to acquire images of different positions of the webbing.

5. The webbing visual inspection mechanism according to claim 4, characterized in that, The visual inspection mechanism includes: A first camera, set at the first detection position, is used to acquire image information of the surface of the front side of the webbing; The second camera, located at the second detection position, is used to acquire image information of the surface and sides of the back of the webbing; A third camera, located at the third detection position, is used to acquire image information of the weave texture of the ribbon; The first light source assembly, the second light source assembly, and the third light source assembly are all mounted on the frame and correspond to the positions of the first camera, the second camera, and the third camera that capture the webbing, respectively, and are used to provide light sources for the first camera, the second camera, and the third camera, respectively. Each of the first, second, and third detection positions is equipped with an adjustable bracket, and the first, second, and third cameras are all mounted on the adjustable brackets and move along the adjustable brackets in a direction perpendicular to the plane of the webbing.

6. The webbing visual inspection mechanism according to claim 5, characterized in that, The first light source assembly includes a first light source and a second light source, wherein the first light source and the second light source are arranged at a 60° angle. The second light source assembly includes a third light source, a fourth light source, and a fifth light source. The third light source and the fourth light source are disposed on opposite sides of the fifth light source, and the third light source and the fourth light source are arranged at a 60° angle. The fifth light source is a backlight source, fixed on the frame, and placed horizontally. The third light source assembly includes a sixth light source, which is arranged at a 60° angle to the horizontal direction. The second camera, together with the third and fourth light sources, acquires image information of the surface of the back of the webbing, while the second camera and the fifth light source acquire image information of the side of the webbing.

7. The webbing visual inspection mechanism according to claim 6, characterized in that, The visual inspection mechanism also includes multiple light source mounting brackets, which are fixed on the frame and are used to install the first light source assembly, the second light source assembly and the third light source assembly, respectively. The light source mounting bracket includes a first light source bracket, a second light source bracket, a third light source bracket, a fourth light source bracket, a fifth light source bracket, and a sixth light source bracket; The first light source, the second light source, the third light source, the fourth light source, the fifth light source, and the sixth light source are respectively disposed on the first light source bracket, the second light source bracket, the third light source bracket, the fourth light source bracket, the fifth light source bracket, and the sixth light source bracket; The first light source bracket, the second light source bracket, the third light source bracket, the fourth light source bracket, and the sixth light source bracket can all be adjusted within the range of 0-90°. The fifth light source is fixed on the frame by the fifth light source bracket.

8. The webbing visual inspection mechanism according to claim 5, characterized in that, The adjustable bracket includes a first camera bracket, a second camera bracket, and a third camera bracket, which are respectively disposed at the first detection position, the second detection position, and the third detection position on the frame; The first camera, the second camera, and the third camera are all mounted on the first detection position, the second detection position, and the third detection position respectively via the first camera bracket, the second camera bracket, and the third camera bracket; The first camera bracket, the second camera bracket, and the third camera bracket are all equipped with movable supports, and the first camera, the second camera, and the third camera can slide through the movable supports.

9. A webbing visual inspection mechanism according to claim 1, characterized in that, It also includes a transmission mechanism for pulling and tensioning the webbing, changing the direction of movement of the webbing, and providing different detection surfaces for the visual inspection mechanism; The transmission mechanism includes: a traction motor for providing power for the movement of the webbing and the required tension; The drive roller is fixed on the frame and connected to the traction motor, rotating with the traction motor; A passive roller, fixed on the frame and positioned close to the active roller, is used to clamp the webbing with the active roller, causing the webbing to move forward. Multiple reversing roller assemblies are mounted and fixed on the frame via mounting bases on the frame. They are used to support the webbing and change the running direction of the webbing, presenting the front, back and sides of the webbing to the vision inspection mechanism.

10. A webbing visual inspection mechanism according to claim 1, characterized in that, It also includes a vision inspection system, which is connected to the width adjustment structure and the vision inspection mechanism; The visual inspection system includes an industrial control host, a display, and an alarm light. The industrial control host controls multiple cameras in the visual inspection mechanism through an interface. The alarm light is used to issue an alarm reminder after identifying the defect information of the webbing; The display is used to show defect information of the webbing.

Images