Visual detection device for preventing inner foxing from being damaged by pressing
By combining the material pushing, transporting, inspection, and sorting components of the vision inspection device with industrial cameras and image processing algorithms, the problems of low efficiency and high false detection rate in inner strip inspection have been solved, achieving efficient and accurate non-contact inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN COLLEGE
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-19
AI Technical Summary
The existing technology has low detection efficiency for inner strips. Manual inspection is easily affected by fatigue, resulting in high rates of missed detection and false detection. Furthermore, rubber materials are easily deformed during handling, making it difficult to observe micro-cracks that affect sealing performance.
The system employs a vision inspection device, including a feeding assembly, a transport assembly, an inspection assembly, and a sorting assembly. It utilizes an industrial camera to acquire images from multiple angles and combines them with image processing algorithms to automatically determine whether the inner strip is qualified or not. A robotic arm assists in flipping the strip, achieving non-contact inspection.
It improves detection efficiency and accuracy, reduces contact damage to materials, automates the determination of pass and fail, reduces the rate of missed detection and false detection, and achieves millisecond-level single-piece detection.
Smart Images

Figure CN224253570U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inner circumference strip inspection, and in particular to a visual inspection device for preventing pressure damage to inner circumference strips. Background Technology
[0002] In recent years, with the development and progress of machine vision technology, various industries have carried out targeted design and research and development to replace manual inspection, improve production efficiency, and reduce the rate of missed inspection and false inspection. Inner cladding strips are a common functional structural component in industrial products. They are usually installed on the inner edge or joint of the product and mainly play a role in sealing, supporting and buffering the product.
[0003] However, due to its main assembly inside the product and the special nature of its material, there are significant problems during installation. For example, visual inspection requires disassembling the product, which restricts normal production. Additionally, rubber materials are easily deformed under pressure during handling, and micro-cracks are difficult to observe, affecting their sealing performance. This is not conducive to actual use in the factory and also results in high maintenance costs.
[0004] Based on the above problems, those skilled in the art have conducted extensive research and experimentation, and have used visual inspection technology to detect pressure damage to the inner lining strip, and have manufactured a visual inspection device for preventing pressure damage to the inner lining strip. Utility Model Content
[0005] In order to overcome the problems of low detection efficiency, high missed detection rate and false detection rate caused by fatigue and experience in the current inspection of inner strips, manual inspection and contact inspection are used.
[0006] The technical solution of this utility model is as follows: a visual inspection device for preventing pressure damage to inner lining strips, including an outer box, and further including a pushing component, a material component, a transport component, a detection component and a sorting component installed sequentially on the outer box. An operating table is fixedly installed on the surface of the outer box. The pushing component, the transport component, the detection component, the sorting component and the operating table are electrically connected. An alarm light is fixedly installed on the side of the upper end of the outer box. Robotic arms are installed on both sides of the upper end of the outer box.
[0007] The inner circumference strips are stacked in the material assembly. The pushing assembly is used to push the material out of the material assembly. The material assembly includes a material platform fixedly installed on the outer box. A material support seat is fixedly installed on the inner side of the outer box located on the side of the material platform. A baffle strip is slidably installed on the surface of the material platform.
[0008] The transport component consists of multiple sets of transport belts, which transport materials along the direction of the outer casing. The detection component includes a detection box fixedly installed on the outer casing, and a detection module is fixedly installed on the top inside the detection box.
[0009] Preferably, the inner panels are stacked on the material assembly, and the material is pushed onto the transport assembly by the pushing assembly, which facilitates the transport of the inner panel material. The material is then visually inspected by the detection assembly, and the sorting assembly collects the unqualified material. The overall detection efficiency is higher, and the contact with the material is reduced to prevent damage.
[0010] Preferably, the pushing assembly includes a platform panel, which is fixedly installed on the right side of the inner side of the outer casing. An electric pushing device is fixedly installed on the upper surface of the platform panel, and a pushing plate is fixedly installed on the output end of the electric pushing device. The electric pushing device is used to drive the pushing plate to extend and retract. When the pushing plate moves, it can push the material out of the material support.
[0011] Preferably, two baffles are provided, and the spacing between the two baffles is adapted to the width of the inner circumference strip. When the material is pushed out, it passes through the two baffles and then enters the conveyor belt.
[0012] As a preferred option, two testing boxes are provided, each equipped with an indicator light, and a transparent enclosure is provided at the lower end of the inner side of the testing box.
[0013] Preferably, the detection module includes symmetrically arranged cameras used to acquire image information of the material.
[0014] Preferably, the robotic arm is installed between the two inspection boxes. The robotic arm is used to flip the material over, and the robotic arm is electrically connected to the operating table.
[0015] Preferably, two sorting components are provided on the sides of the two inspection boxes. The sorting components include two flip doors, which are symmetrically arranged. The two flip doors are rotatably connected to the inner wall of the outer box, and an electric telescopic module is provided between the flip door and the outer box. The electric telescopic module is used to drive the flip door to flip.
[0016] The beneficial effects of this utility model are:
[0017] 1. The inner circumference strip anti-pressure damage visual inspection device pushes the inner circumference strip onto the transport component through the pushing component to realize the automatic conveying of materials, and then passes through the inspection component for inspection in sequence. It uses visual inspection to detect physical damage such as indentations and deformation, and checks surface defects. According to preset standards, it determines whether the inner circumference strip is qualified, replacing manual labor, greatly improving inspection efficiency, and reducing contact with parts, thereby achieving the purpose of pressure damage detection.
[0018] 2. This inner circumference strip anti-damage visual inspection device replaces manual inspection with visual inspection. Automated visual inspection can achieve millisecond-level single-piece inspection, improving inspection efficiency and accuracy.
[0019] 3. The inner circumference strip anti-damage visual inspection device uses non-contact visual inspection technology and a high-resolution industrial camera to collect multi-angle images of the inner circumference strip components, avoiding secondary damage caused by traditional manual or contact inspection.
[0020] 4. The inner circumference strip anti-damage visual inspection device has automatic judgment and alarm. The system will automatically compare the matching degree of the inspection image on the production line with the standard image, determine whether it is qualified or unqualified, and link the production line control equipment to start and stop and alarm to ensure the product qualification rate.
[0021] 5. The inner circumference strip anti-pressure damage visual inspection device uses a robotic arm to flip the workpiece over, allowing for all-around inspection and avoiding blind spots that could affect inspection accuracy. Attached Figure Description
[0022] Figure 1 The diagram shown is a schematic representation of the overall structure of the visual inspection device for preventing pressure damage to the inner circumference strip of this utility model.
[0023] Figure 2 The diagram shown is a schematic representation of the material support base of the visual inspection device for preventing pressure damage to the inner circumference strip of this utility model.
[0024] Figure 3 The diagram shown is a side view of the visual inspection device for preventing pressure damage to the inner circumference strip of this utility model.
[0025] Figure 4 The diagram shown is a schematic representation of the flip-door structure of the visual inspection device for preventing pressure damage to the inner circumference strip of this utility model.
[0026] Figure 5 The diagram shown is a schematic of the inspection process of the visual inspection device for preventing pressure damage to the inner circumference strip of this utility model.
[0027] Explanation of reference numerals in the attached drawings: 1. Outer casing; 2. Operating table; 3. Alarm light; 4. Material platform; 5. Material support base; 51. Tabletop; 52. Electric pushing device; 53. Pushing plate; 6. Material stop bar; 7. Inspection box; 71. Transparent casing; 8. Camera; 9. Robotic arm; 10. Flip door. Detailed Implementation
[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0029] Please see Figures 1-5This utility model provides an embodiment: a visual inspection device for preventing inner lining strip damage, including an outer housing 1, and further including a pushing assembly, a material assembly, a transport assembly, a detection assembly, and a sorting assembly sequentially installed on the outer housing 1. An operating table 2 is fixedly installed on the surface of the outer housing 1. The pushing assembly, transport assembly, detection assembly, sorting assembly, and operating table 2 are electrically connected. An alarm light 3 is fixedly installed on the upper side of the outer housing 1, and robotic arms 9 are installed on both sides of the upper end of the outer housing 1. The inner lining strips are stacked in the material assembly. The pushing assembly is used to push the material out of the material assembly. The material assembly includes a material platform 4 fixedly installed on the outer housing 1. A material support 5 is fixedly installed on the inner side of the outer housing 1 on the side of the material platform 4. The material is slidably mounted with baffles 6; the transport component consists of multiple sets of transport belts (the transport belts are conventional automated transport structures, which generally have drive rollers and drive devices installed inside, which are existing technologies, and this application has not made any improvements, so they will not be described in detail). The transport component conveys the material along the direction of the outer box 1. The detection component includes a detection box 7 fixedly installed on the outer box 1. A detection module is fixedly installed on the top of the inner side of the detection box 7. The inner lining panels are stacked on the material component, and the material is pushed onto the transport component by the pushing component, which facilitates the transport of the material in the inner lining panels. The material is visually inspected by the detection component, and the sorting component collects the unqualified material. The overall detection efficiency is higher, and the contact with the material is reduced to prevent damage.
[0030] Please see Figure 1 and Figure 2 In this embodiment, the pushing assembly includes a platform 51, which is fixedly installed on the right side of the inner side of the outer casing 1. An electric pushing device 52 (the electric pushing device 52 is an electric push rod structure) is fixedly installed on the upper surface of the platform 51. A pushing plate 53 is fixedly installed at the output end of the electric pushing device 52. The electric pushing device 52 is used to drive the pushing plate 53 to extend and retract. When the pushing plate 53 moves, it can push the material out of the material support 5. There are two baffles 6. The distance between the two baffles 6 is adapted to the width of the inner circumference strip. When the material is pushed out, it enters the conveyor belt after passing through the two baffles 6. The electric pushing device 52 drives the pushing plate 53 to extend and retract. When it extends, the pushing plate 53 contacts the bottom inner circumference plate material and pushes it out of the material support, which is convenient for feeding. The pushed inner circumference plate material is on the conveyor belt, which is convenient for transporting the material. The two baffles 6 form a positioning, so that the inner circumference plate is in a uniform position each time it is fed, which is convenient for subsequent inspection.
[0031] Please see Figure 1 and Figure 3In this embodiment, two inspection boxes 7 are provided, each equipped with an indicator light (used to indicate the inspection status). A display screen is installed on the surface of the outer box 1 corresponding to the position of the inspection box 7. The display screen can display and record the inspection information in real time. A transparent box 71 is provided at the lower end of the inner side of the inspection box 7. The inspection module includes symmetrically arranged cameras 8 (the cameras 8 are industrial-grade cameras, which can also be replaced with laser scanners). The cameras 8 are used to collect image information of the materials. A robotic arm 9 is installed between the two inspection boxes 7. The robotic arm 9 is used to flip the materials. The robotic arm 9 is electrically connected to the operating table 2. The two inspection boxes 7 respectively inspect both sides of the inner panel material. After the first inspection box 7 is inspected, the two robotic arms 9 flip the material while it is being conveyed by the conveyor belt. The second inspection box 7 inspects the reverse side. The flipping operation can achieve synchronous movement, so that the inner panel can be put back onto the conveyor belt from the sorting component and transported into the second inspection box 7.
[0032] Camera 8 is an industrial camera capable of capturing high-definition images of the inner circumference strip from multiple angles. Through image processing algorithms (where the image processing algorithm is a conventional technical solution, such as the computer vision-based automotive sealing strip quality inspection method disclosed in patent number CN115115629A), the acquired color image is converted to grayscale. Based on the color, brightness, and texture features of the inner circumference strip and background in the image, the color three-dimensional channel is converted into a one-dimensional grayscale image, making the target and background clearly distinguishable. Then, the image is filtered to eliminate various noise interferences and improve detection accuracy (the image processing method is existing technology and will not be described in detail in this application). The filtered image is then binarized and edge detected to extract key points, lines, curves, and other features of the inner circumference strip edge. To improve edge positioning accuracy, a sub-pixel edge positioning algorithm is used to obtain the edge features of the inner circumference strip and perform edge fitting with a standard qualified workpiece. The fitting degree is detected, and the workpiece is matched with the standard qualified workpiece's characteristics. Workpieces with a qualified matching degree are considered to meet quality requirements, have no pressure loss, and satisfy production needs.
[0033] Please see Figure 1 and Figure 4 In this embodiment, two sorting components are located on the sides of the two detection boxes 7. The sorting components include two flip doors 10, which are symmetrically arranged. The two flip doors 10 are rotatably connected to the inner wall of the outer box 1, and an electric telescopic module is provided between the flip door 10 and the outer box 1. The electric telescopic module is used to drive the flip door 10 to flip. When a defective product is detected, the corresponding flip door 10 is opened under the action of the electric telescopic module, so that the inner panel falls down when it passes by, thereby realizing collection.
[0034] During operation, the device is powered by an external power source. The inner panel materials are stacked on the material support 5. The pusher plate 53 contacts the bottom inner panel material and pushes it off the material support, pushing the single inner panel onto the conveyor belt. The conveyor belt then sends the material into the first inspection box 7. The camera 8 collects image information of the inner panel for detection and analysis. Qualified products enter the first sorting component and are transported to the subsequent conveyor belt by the robotic arm 9, while being flipped over simultaneously, thus entering the second inspection box 7. The camera 8 collects image information of the reverse side for detection. Finally, qualified products are sent to the second sorting component and can be retrieved by personnel or the unloading device. When unqualified products enter the sorting component, the flip door 10 is opened by the electric telescopic module to collect the unqualified products.
[0035] Through the above steps, the inner panel is stacked on the material assembly, and the material is pushed onto the transport assembly by the pushing assembly, which facilitates the transportation of the inner panel material. The material is then visually inspected by the detection assembly, and the sorting assembly collects the unqualified material. The overall detection efficiency is higher, and the contact with the material is reduced to prevent damage. This solves the problems of low detection efficiency, high missed detection rate and false detection rate caused by fatigue and experience when inspecting inner panel strips.
Claims
1. A visual inspection device for preventing pressure damage to inner lining strips, comprising an outer housing (1), characterized in that: It also includes a pushing assembly, a material assembly, a transport assembly, a detection assembly and a sorting assembly installed sequentially on the outer box (1). An operating table (2) is fixedly installed on the surface of the outer box (1). The pushing assembly, the transport assembly, the detection assembly, the sorting assembly and the operating table (2) are electrically connected. An alarm light (3) is fixedly installed on the side of the upper end of the outer box (1). Robotic arms (9) are installed on both sides of the upper end of the outer box (1). The inner circumference strips are stacked in the material assembly. The pushing assembly is used to push the material out of the material assembly. The material assembly includes a material platform (4) fixedly installed on the outer box (1). A material support seat (5) is fixedly installed on the inner side of the outer box (1) on the side of the material platform (4). A baffle strip (6) is slidably installed on the surface of the material platform (4). The transport component consists of multiple sets of transport belts, which transport materials along the direction of the outer casing (1). The detection component includes a detection box (7) fixedly installed on the outer casing (1), and a detection module is fixedly installed on the top of the inner side of the detection box (7).
2. The visual inspection device for preventing pressure damage to inner circumference strips according to claim 1, characterized in that: The material pushing assembly includes a table panel (51), which is fixedly installed on the right side of the inner side of the outer casing (1). An electric pushing device (52) is fixedly installed on the upper surface of the table panel (51). A pushing plate (53) is fixedly installed at the output end of the electric pushing device (52). The electric pushing device (52) is used to drive the pushing plate (53) to extend and retract. When the pushing plate (53) moves, the material can be pushed out from the material support (5).
3. The visual inspection device for preventing pressure damage to inner lining strips according to claim 1, characterized in that: There are two baffles (6), and the spacing between the two baffles (6) is adapted to the width of the inner circumference strip. When the material is pushed out, it passes through the two baffles (6) and then enters the conveyor belt.
4. The visual inspection device for preventing pressure damage to inner circumference strips according to claim 1, characterized in that: There are two test boxes (7), each equipped with an indicator light. A transparent box (71) is installed at the lower inside of the test box (7).
5. The visual inspection device for preventing pressure damage to inner circumference strips according to claim 1, characterized in that: The detection module includes symmetrically arranged cameras (8), which are used to collect image information of the material.
6. The visual inspection device for preventing pressure damage to inner circumference strips according to claim 1, characterized in that: The robotic arm (9) is installed between two detection boxes (7). The robotic arm (9) is used to flip the material. The robotic arm (9) and the operating table (2) are electrically connected.
7. The visual inspection device for preventing pressure damage to inner circumference strips according to claim 1, characterized in that: Two sorting components are located on the sides of the two inspection boxes (7). The sorting components include two flip doors (10). Two flip doors (10) are symmetrically arranged. The two flip doors (10) are rotatably connected to the inner wall of the outer box (1). An electric telescopic module is provided between the flip door (10) and the outer box (1). The electric telescopic module is used to drive the flip door (10) to flip.