Aluminum strip feed detection device

Abstract

The utility model discloses a kind of aluminium strip feed detection devices, including detection box assembly, visual detection piece, light source assembly and aluminium strip drive assembly.Detection box assembly is equipped with detection box feed inlet and discharge port, feed inlet and discharge port are equipped with inlet and outlet port light-blocking cleaning brush, for removing aluminium strip surface dust and blocking external light.Visual detection piece is two defect detection camera, respectively set in detection box body upper and lower ends, for synchronously shooting aluminium strip upper and lower surface image.Light source assembly includes in-tank fill light and reflector plate, reflector plate is connected through the universal shaft with damping, angle can be adjusted to optimize illumination uniformity.Aluminium strip drive assembly includes drive roller, passive roller and pressure spring, ensure that aluminium strip moves stably.The utility model solves the problem of external light source interference, dust influence detection precision and unstable driving, realizes the high-efficiency accurate aluminium strip surface defect detection.

Description

Technical Field

[0001] This utility model relates to the field of aluminum strip processing technology, and in particular to an aluminum strip feeding detection device. Background Technology

[0002] In the processing and production of aluminum strip, the inspection of its surface quality is a crucial step in ensuring product quality. Traditional methods for detecting surface defects in aluminum strip typically rely on manual visual inspection or simple mechanical inspection equipment. These methods are not only inefficient but also susceptible to human factors and external environmental influences, leading to inaccurate and unstable results. Furthermore, most existing automated inspection equipment lacks sophisticated light source control and light-shielding designs, making it vulnerable to interference from changes in external light sources during inspection, thus affecting the accuracy and consistency of image acquisition. Simultaneously, the aluminum strip may carry dust or other impurities during feeding, which can not only affect inspection results but also contaminate or damage the inspection equipment. Current technologies offer relatively simple designs for cleaning and light-shielding aluminum strips, which are insufficient to meet the demands of high-precision inspection. Additionally, the drive and traction systems of the aluminum strip require stable tension and precise movement speed during operation; however, the drive mechanisms in traditional equipment often suffer from complex structures, inconvenient adjustments, and unstable traction forces, further limiting the improvement of inspection efficiency and accuracy. Therefore, developing an aluminum strip feeding and inspection device that can achieve efficient cleaning, precise light source control, stable drive traction, and high-precision visual inspection has become a pressing technical challenge in the current aluminum strip processing field. Utility Model Content

[0003] This invention addresses the technical problems of existing aluminum strip surface defect detection devices, such as inaccurate detection images due to changes in external light sources, the impact of dust on the aluminum strip surface on detection results, and the instability of the drive system leading to uneven aluminum strip movement. It proposes a structurally optimized aluminum strip feeding and detection device. This device achieves efficient and accurate aluminum strip surface defect detection by incorporating a visual inspection component and a light source assembly within the detection housing, combined with the stable traction function of the aluminum strip drive assembly.

[0004] This utility model provides an aluminum strip feeding inspection device, including an inspection box assembly, a vision inspection component, a light source assembly, and an aluminum strip driving assembly. Wherein:

[0005] The inspection chamber assembly consists of an inspection chamber body, an inspection chamber inlet, and an inspection chamber outlet. The inspection chamber inlet and outlet penetrate both side walls of the inspection chamber body and are located at opposite positions within the inspection chamber body, used for the entry and exit of aluminum strip. Specifically, both the inspection chamber inlet and outlet are equipped with light-blocking cleaning brushes. These brushes remove dust adhering to the surface of the aluminum strip through contact friction, while simultaneously blocking external light from entering the inspection chamber body. Furthermore, visual inspection components and light source assemblies are respectively installed at the upper and lower ends of the inspection chamber body for simultaneous inspection of both the upper and lower surfaces of the aluminum strip.

[0006] Furthermore, the visual inspection component comprises two defect detection cameras, fixed to the top and bottom of the inspection chamber respectively, facing the upper and lower surfaces of the aluminum strip. The defect detection cameras capture image information of the aluminum strip surface through their built-in optical lenses and sensors, and transmit the acquired image data to an external computer for analysis and processing. Specifically, the installation position of the defect detection cameras is precisely calculated to ensure that their imaging range covers the entire width of the aluminum strip, thereby avoiding blind spots in the inspection.

[0007] Furthermore, the light source assembly includes internal supplementary lights and reflectors. The internal supplementary lights consist of multiple LED light source modules, evenly distributed on the upper and lower side walls inside the detection chamber, forming a stable lighting environment. The number of reflectors matches the number of internal supplementary lights, and they are respectively located at the top and bottom of the detection chamber, connected to the chamber via damped universal joints. The universal joint design allows the reflectors to adjust their angle according to actual needs, thereby reflecting the light emitted by the internal supplementary lights onto the detection area of ​​the aluminum strip surface, ensuring consistent light intensity on the aluminum strip surface. Specifically, the reflector surface is made of a high-reflectivity material to improve light utilization and reduce energy loss.

[0008] Furthermore, the aluminum belt drive assembly includes an aluminum belt drive drive roller, a drive roller drive motor, an aluminum belt drive passive roller, a passive roller support, a passive roller slide rail, and a passive roller pressure spring. The aluminum belt drive drive roller is fixed to the outer wall of the detection chamber via the support, near the discharge port of the detection chamber. The drive roller drive motor is mounted on the side wall of the detection chamber and connected to the aluminum belt drive drive roller via a transmission mechanism, used to drive the aluminum belt drive drive roller to rotate. The aluminum belt drive passive roller is connected to the passive roller slide rail via the passive roller support, and the passive roller slide rail is fixed to the side wall of the detection chamber, allowing the passive roller support to move linearly along the slide rail. One end of the passive roller pressure spring is fixed to the side wall of the detection chamber, and the other end is connected to the passive roller support. The spring's elastic force pushes the passive roller support to move along the slide rail, thereby ensuring that the aluminum belt drive passive roller is tightly fitted against the aluminum belt drive drive roller. Specifically, the contact point between the aluminum belt drive drive roller and the aluminum belt drive passive roller is located at the outlet of the inspection box to ensure that the aluminum belt is subjected to uniform traction force during the inspection process.

[0009] Furthermore, the working principle of this utility model is as follows:

[0010] S1: The aluminum strip enters the testing chamber through the feed inlet. When it passes through the light-blocking cleaning brush at the feed inlet and outlet, the dust attached to its surface is removed. At the same time, the light-blocking cleaning brush at the feed inlet and outlet blocks external light from entering the testing chamber, thus avoiding interference from external light sources.

[0011] S2: After the drive motor of the transmission roller shaft starts, it drives the aluminum belt drive roller shaft to rotate, and the aluminum belt moves forward under the action of the drive roller shaft. The passive roller shaft of the aluminum belt drive is in close contact with the aluminum belt drive roller shaft through the elastic force of the passive roller shaft pressure spring, thereby applying uniform pressure to the aluminum belt and ensuring that the aluminum belt remains stable during movement.

[0012] S3: During the movement of the aluminum strip, two defect detection cameras inside the inspection chamber capture images of the top and bottom surfaces of the strip, respectively, and transmit the image data to an external computer for analysis and processing. The chamber's supplementary lighting and reflectors work together to provide uniform illumination to the aluminum strip surface, preventing inaccurate image acquisition due to changes in external light sources.

[0013] The beneficial effects of this utility model are:

[0014] By installing supplementary lighting and reflectors inside the testing chamber, consistent light intensity within the testing area is achieved, effectively addressing the impact of external light source variations on the testing results. In particular, the reflectors are connected via a damped universal joint, allowing for flexible angle adjustment to meet specific needs, further enhancing the uniformity and stability of the illumination.

[0015] The design of the light-blocking cleaning brushes at the inlet and outlet not only effectively removes dust from the surface of the aluminum strip, but also reduces the interference of external light on the detection process through its light-blocking function, thereby improving the detection accuracy.

[0016] The aluminum belt drive assembly, through the cooperation of the aluminum belt drive drive roller and the aluminum belt drive passive roller, combined with the elastic force of the passive roller pressure spring, ensures that the aluminum belt is subjected to uniform force and runs smoothly during movement, avoiding detection errors caused by instability of the drive system.

[0017] The overall structure is compact and reasonable, and the layout of each component is scientific, making it easy to install and maintain, and suitable for a variety of aluminum strip inspection scenarios.

[0018] In summary, this invention solves the problems of low detection accuracy, poor cleaning effect, and unstable drive in the prior art by optimizing the design of the detection box assembly, vision inspection component, light source assembly, and aluminum strip drive assembly, providing an efficient and reliable solution for aluminum strip surface defect detection. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] The attached figures are labeled as follows:

[0021] 1. Inspection chamber; 2. Inspection chamber inlet; 3. Inspection chamber outlet; 4. Internal supplementary light; 5. Defect detection camera; 6. Reflector; 7. Inlet / outlet light-blocking cleaning brush; 8. Aluminum belt drive roller; 9. Drive roller motor; 10. Aluminum belt drive passive roller; 11. Passive roller bracket; 12. Passive roller slide rail; 13. Passive roller pressure spring; 14. Aluminum belt. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0023] like Figure 1 As shown in the accompanying drawings, the specific implementation of the aluminum strip feeding inspection device of this utility model will be described in detail. The aluminum strip feeding inspection device in this embodiment includes an inspection housing assembly, a vision inspection component, a light source assembly, and an aluminum strip driving assembly. These components work together to achieve efficient and accurate detection of surface defects in the aluminum strip.

[0024] The testing chamber assembly consists of a testing chamber 1, a testing chamber inlet 2, and a testing chamber outlet 3. The testing chamber inlet 2 and the testing chamber outlet 3 penetrate the two side walls of the testing chamber 1 and are located in opposite positions, used for the entry and exit of the aluminum strip 14. Light-blocking cleaning brushes 7 are installed at both the testing chamber inlet 2 and the testing chamber outlet 3. These brushes remove dust adhering to the surface of the aluminum strip 14 through contact friction, while simultaneously blocking external light from entering the testing chamber 1, thus avoiding interference from external light sources.

[0025] The inspection chamber 1 is equipped with visual inspection components and a light source assembly at its top and bottom ends, respectively, for simultaneous inspection of both the top and bottom surfaces of the aluminum strip 14. The visual inspection components consist of two defect detection cameras 5, fixed to the top and bottom of the inspection chamber 1, respectively, facing the top and bottom surfaces of the aluminum strip 14. The defect detection cameras 5 capture image information of the aluminum strip 14 surface through their built-in optical lenses and sensors, and transmit the acquired image data to an external computer for analysis and processing. The installation position of the defect detection cameras 5 is precisely calculated to ensure that their shooting range covers the entire width of the aluminum strip 14, thereby avoiding blind spots.

[0026] The light source assembly includes internal supplementary lights 4 and reflectors 6. The internal supplementary lights 4 consist of multiple LED light source modules evenly distributed on the upper and lower side walls inside the detection chamber 1, forming a stable lighting environment. The number of reflectors 6 matches the number of internal supplementary lights 4, and they are respectively located at the top and bottom of the detection chamber 1, connected to the detection chamber 1 via damped universal joints. The universal joint design allows the reflectors 6 to adjust their angle according to actual needs, thereby reflecting the light emitted by the internal supplementary lights 4 onto the detection area of ​​the aluminum strip 14 surface, ensuring consistent light intensity on the aluminum strip 14 surface. The surface of the reflectors 6 is made of a high-reflectivity material to improve light utilization and reduce energy loss.

[0027] The aluminum belt drive assembly includes an aluminum belt drive drive roller 8, a drive roller motor 9, an aluminum belt drive passive roller 10, a passive roller support 11, a passive roller slide rail 12, and a passive roller pressure spring 13. The aluminum belt drive drive roller 8 is fixed to the outer wall of the detection chamber 1 by the support and positioned near the discharge port 3 of the detection chamber. The drive roller motor 9 is mounted on the side wall of the detection chamber 1 and connected to the aluminum belt drive drive roller 8 via a transmission mechanism, used to drive the aluminum belt drive drive roller 8 to rotate. The aluminum belt drive passive roller 10 is connected to the passive roller slide rail 12 via the passive roller support 11. The passive roller slide rail 12 is fixed to the side wall of the detection chamber 1, allowing the passive roller support 11 to move linearly along the slide rail. One end of the passive roller pressure spring 13 is fixed to the side wall of the detection chamber 1, and the other end is connected to the passive roller bracket 11. The spring's elastic force pushes the passive roller bracket 11 to move along the slide rail, thereby causing the aluminum belt drive passive roller 10 to fit tightly against the aluminum belt drive drive roller 8. The contact point between the aluminum belt drive drive roller 8 and the aluminum belt drive passive roller 10 is located at the discharge port 3 of the detection chamber to ensure that the aluminum belt 14 receives uniform traction during the detection process.

[0028] The working principle of the aluminum strip feeding detection device in this embodiment is as follows:

[0029] S1: The aluminum strip 14 enters the detection chamber 1 from the inlet 2 of the detection chamber. When it passes the light-blocking cleaning brush 7 at the inlet and outlet, the dust attached to its surface is removed. At the same time, the light-blocking cleaning brush 7 at the inlet and outlet blocks external light from entering the detection chamber 1 to avoid interference from external light sources.

[0030] S2: After the drive motor 9 starts, it drives the aluminum belt drive drive roller 8 to rotate, and the aluminum belt 14 moves forward under the action of the drive roller. The aluminum belt drive passive roller 10 is pressed tightly against the aluminum belt drive drive roller 8 by the elastic force of the passive roller pressure spring 13, thereby applying uniform pressure to the aluminum belt 14 and ensuring that the aluminum belt 14 remains stable during movement.

[0031] S3: During the movement of the aluminum strip 14, two defect detection cameras 5 inside the inspection box 1 capture images of the upper and lower surfaces of the aluminum strip 14, respectively, and transmit the image data to an external computer for analysis and processing. The supplementary lighting 4 and reflector 6 inside the box work together to provide uniform lighting conditions for the surface of the aluminum strip 14, avoiding inaccurate image acquisition due to changes in external light sources.

[0032] In practical applications, when aluminum strip 14 needs to undergo surface defect detection, one end of aluminum strip 14 is first inserted into the detection chamber 1 through the feed port 2. After being cleaned and shielded from light by the light-blocking cleaning brushes 7 at the feed port, aluminum strip 14 enters the internal space of the detection chamber 1. At this time, the upper and lower sides of aluminum strip 14 are respectively facing two defect detection cameras 5. The supplementary lights 4 and reflectors 6 inside the chamber have been pre-adjusted to ensure that the light can evenly illuminate the detection area of ​​aluminum strip 14. The operator starts the drive motor 9 of the transmission roller shaft. The motor drives the aluminum strip drive roller shaft 8 to rotate through the transmission mechanism. The rotation of the aluminum strip drive roller shaft 8 drives the aluminum strip 14 to move forward. During the movement of aluminum strip 14, the aluminum strip drive passive roller shaft 10 is always kept in close contact with the aluminum strip drive roller shaft 8 by the elastic force of the passive roller shaft pressure spring 13, thereby applying uniform pressure to aluminum strip 14 and ensuring that aluminum strip 14 does not deviate or slip during the movement.

[0033] As the aluminum strip 14 continues to move, two defect detection cameras 5 acquire real-time images of the top and bottom surfaces of the aluminum strip 14. The optical lenses of the defect detection cameras 5 capture detailed information about the surface of the aluminum strip 14 and convert the image data into digital signals through built-in sensors, which are then transmitted to an external computer. After receiving the image data, the computer uses a preset image processing algorithm to analyze and identify defects on the surface of the aluminum strip 14, such as cracks, scratches, and dents, which can be accurately located and classified. In this process, the role of the supplementary light 4 and the reflector 6 inside the chamber is particularly important. The light emitted by the supplementary light 4 is evenly distributed on the detection area of ​​the aluminum strip 14 through the reflection of the reflector 6. Even if the external ambient light changes, it will not affect the lighting conditions inside the detection chamber 1, thus ensuring the stability and accuracy of image acquisition.

[0034] Furthermore, the design of the inlet / outlet light-blocking cleaning brush 7 further enhances the detection effect. Made of flexible material, the inlet / outlet light-blocking cleaning brush 7 effectively removes dust particles from the aluminum strip 14 surface without damaging it. Simultaneously, the inlet / outlet light-blocking cleaning brush 7 also serves to shield against light, preventing external light from entering the detection chamber 1 from the inlet 2 and outlet 3, thus avoiding interference with the stable lighting environment created by the supplementary lights 4 and reflectors 6 inside the chamber. This design not only improves detection accuracy but also extends the lifespan of the device and reduces maintenance costs.

[0035] After the aluminum strip 14 completes inspection, it exits from the discharge port 3 of the inspection box and continues into subsequent processing steps. The entire inspection process is highly automated, requiring no manual intervention and greatly improving production efficiency. The cooperative design of the aluminum strip drive roller 8 and the aluminum strip drive passive roller 10 ensures that the aluminum strip 14 experiences uniform force and runs smoothly during movement, enabling it to adaptably complete inspection tasks even with aluminum strips of different thicknesses or materials. The elastic force of the passive roller pressure spring 13 can be adjusted according to the specific conditions of the aluminum strip 14 to meet the needs of different application scenarios.

[0036] The aluminum strip feeding inspection device in this embodiment is suitable for various aluminum strip inspection scenarios, such as online inspection on aluminum strip production lines, quality sampling inspection of finished aluminum strips, and comprehensive inspection before aluminum strip storage. Whether in continuous high-speed production lines or small-batch, multi-variety customized production, this device demonstrates excellent performance. Its compact and rational structural design, scientific component layout, and efficient inspection capabilities make it an indispensable key piece of equipment in the aluminum strip processing field.

[0037] In summary, this embodiment solves the problems of low detection accuracy, poor cleaning effect and unstable drive in the prior art by optimizing the design of the detection box assembly, vision inspection component, light source assembly and aluminum strip drive assembly, and provides an efficient and reliable solution for aluminum strip surface defect detection.

[0038] The technical solution of this utility model is not limited to the specific embodiments described above. All technical modifications made according to the technical solution of this utility model fall within the protection scope of this utility model.

Claims

1. An aluminum strip feeding detection device, characterized in that: The device includes a detection housing assembly, a vision inspection component, a light source assembly, and an aluminum strip drive assembly. The vision inspection component and the light source assembly are disposed inside the detection housing assembly. The aluminum strip (14) passes through the detection housing assembly and passes through the vision inspection component and the light source assembly. The aluminum strip drive assembly is disposed outside the detection housing assembly and pulls the aluminum strip (14).

2. The aluminum strip feeding detection device according to claim 1, characterized in that: The detection box assembly includes a detection box (1), a detection box inlet (2), and a detection box outlet (3). The detection box inlet (2) and the detection box outlet (3) are respectively located on both sides of the detection box (1). The detection box inlet (2) and the detection box outlet (3) penetrate the detection box (1). The visual detection component and the light source assembly are provided at the upper and lower ends of the detection box (1). The aluminum strip drive assembly is located on the outside of the detection box (1) and at the position of the detection box outlet (3). The aluminum strip (14) enters through the detection box inlet (2) and exits through the detection box outlet (3).

3. The aluminum strip feeding detection device according to claim 2, characterized in that: Both the inlet (2) and outlet (3) of the testing box are equipped with light-blocking cleaning brushes (7), and the aluminum strip (14) is fed and discharged through the light-blocking cleaning brushes (7).

4. The aluminum strip feeding detection device according to claim 2, characterized in that: The visual inspection component is a defect inspection camera (5). There are two defect inspection cameras (5). The two defect inspection cameras (5) are respectively located at the top and bottom of the inspection box (1) and are respectively facing the top and bottom surfaces of the aluminum strip (14).

5. The aluminum strip feeding detection device according to claim 2, characterized in that: The light source assembly includes an in-box supplementary light (4) and a reflector (6). There are multiple in-box supplementary lights (4), which are evenly distributed on the upper and lower side walls of the detection box (1). There are multiple reflectors (6), which are respectively located at the top and bottom of the detection box (1).

6. The aluminum strip feeding detection device according to claim 5, characterized in that: The reflector (6) and the detection box (1) are rotatably connected by a damped universal joint.

7. The aluminum strip feeding detection device according to claim 2, characterized in that: The aluminum belt drive assembly includes an aluminum belt drive drive roller (8), a drive roller motor (9), an aluminum belt drive passive roller (10), a passive roller bracket (11), a passive roller slide rail (12), and a passive roller pressure spring (13). The aluminum belt drive drive roller (8) is mounted on the outer wall of the detection box (1) via the bracket and is located near the discharge port (3) of the detection box. The drive roller motor (9) is fixed to the side wall of the detection box (1). The drive roller motor (9) drives the aluminum belt drive drive roller (8) to rotate. The aluminum belt drive passive roller (10) and the passive roller... The passive roller bracket (11) is connected to the side wall of the detection box (1) through the passive roller slide rail (12). The aluminum belt driven passive roller (10) is close to the aluminum belt driven drive roller (8). The aluminum belt (14) is located between the aluminum belt driven drive roller (8) and the aluminum belt driven passive roller (10). The close contact between the aluminum belt driven drive roller (8) and the aluminum belt driven passive roller (10) is located at the outlet (3) of the detection box. The two sections of the passive roller pressure spring (13) are located between the detection box (1) and the passive roller slide rail (12).

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