ELISA detection kit production with flaw visual inspection sorting device

Abstract

The application discloses an ELISA detection reagent kit production flaw visual detection sorting device, which comprises a visual detection assembly for reagent kit flaw detection and a sorting assembly for sorting finished products and flawed products, and the visual detection assembly is movably installed on one side of the sorting assembly and comprises a blanking driving assembly and an online detection assembly; the limitations of traditional visual detection can be broken through by the multi-spectrum camera, hidden flaws on the surface and inside of the ELISA detection reagent kit can be accurately identified by capturing signals of multiple specific spectral bands and using unique spectral fingerprints of substances, and the first industrial camera, the second industrial camera and the laser-induced imager work cooperatively to realize omnibearing detection of the top, bottom, side and inside of the reagent kit, a plurality of flaws such as enzyme-labeled plate microwell abnormality, reagent contamination, label deviation and shell scratch can be effectively identified, the pain point that hidden flaws cannot be identified by traditional detection is solved, and the detection accuracy is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of reagent kit testing technology, specifically to a visual inspection and sorting device for defects in the production of ELISA test kits. Background Technology

[0002] Enzyme-linked immunosorbent assay (ELISA) kits are core tools in clinical diagnostics, biological detection, veterinary drug residue detection, and pathogen detection. Their production quality directly determines the accuracy and reliability of test results, and even relates to the scientific validity of clinical diagnosis and the precision of drug residue detection. Therefore, defect detection and sorting during the kit production process are crucial for ensuring product qualification rates and mitigating usage risks. ELISA kits mainly consist of components such as enzyme-labeled plates, reagent vials, outer casings, and labels. Various defects can easily occur during production, including deformation, leaks, and contamination of the microwells in the enzyme-labeled plates; breakage and leakage of reagent vials; scratches and damage to the kit casing; misaligned labels; and misplaced or missing components. These defects not only lead to kit failure and affect the accuracy of test data, but may also result in penalties for companies, product recalls, and even medical or testing risks due to discrepancies between the product and approved specifications or inadequate quality control.

[0003] Currently, defect detection and sorting in the production process of ELISA test kits still largely rely on manual operation. Manual inspection requires operators to visually inspect the appearance and internal components of each kit one by one. This is not only labor-intensive and inefficient, making it unsuitable for large-scale automated production, but also suffers from low accuracy due to factors such as the operator's sense of responsibility, visual fatigue, and varying levels of expertise. It is prone to missed or false detections and makes it difficult to identify hidden defects such as microwell abnormalities in the enzyme-labeled plate or leakage inside the reagent bottle. This fails to meet the stringent quality control requirements of the Good Manufacturing Practices for Medical Devices. Summary of the Invention

[0004] The purpose of this invention is to provide a visual inspection and sorting device for defects in the production of ELISA test kits, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a visual inspection and sorting device for defects in ELISA test kit production, comprising a visual inspection component for detecting defects in the test kits, and a sorting component for sorting finished products and defective products. The visual inspection component is movably mounted on one side of the sorting component. The visual inspection component includes a material feeding drive component and an online inspection component. The material feeding drive component includes an inspection platform, a transparent glass plate is fixedly installed inside the inspection platform, an installation plate is fixedly installed on the top of the inspection platform, and an electric cylinder is fixedly installed on one side of the installation plate. The electric cylinder... A push plate is fixedly installed at the output end, and an anti-fall plate is fixedly installed on the top of the push plate. Two support plates are symmetrically fixedly installed on the top of the detection table. A feeding cylinder is fixedly installed on the top of the support plates. A placement frame is slidably installed inside the feeding cylinder. The online detection component includes a CNC box and two mounting brackets. A CNC display screen is fixedly installed on one side of the CNC box. A switch button is installed on one side of the CNC box. Detection boxes are fixedly installed inside both mounting brackets. A first industrial camera, a multispectral camera, a second industrial camera, and a laser-induced imager are fixedly installed on one side of each detection box.

[0006] Preferably, one end of each of the two mounting brackets is fixedly mounted on one side of the feed cylinder and the bottom of the inspection table, respectively. The two inspection boxes are located directly above and below the transparent glass, respectively. Both inspection boxes are connected to the CNC box via wires.

[0007] Preferably, the inner cavity of the feeding cylinder is provided with a sliding groove four on both sides, a sliding groove three on one side, a sliding groove two on the other side, and a sliding groove one on one side of the sliding groove two. Sliding strips are fixedly installed on both sides of the placement frame, and the sliding strips are slidably installed inside the sliding groove four. Pull-out grooves are provided on both sides of the bottom of the placement frame, and baffles are slidably installed inside the pull-out grooves. A pull handle is fixedly installed at one end of the baffle, and the baffle is slidably installed inside the sliding grooves three and two. The pull handle is slidably installed inside the sliding groove one.

[0008] Preferably, anti-drop plates are fixedly installed on both sides of the top of the testing platform, and the two anti-drop plates are located on both sides of the transparent glass. The top of the anti-drop plate is on the same horizontal plane as the bottom of the feeding cylinder.

[0009] Preferably, the sorting component includes a finished product conveyor frame and a defective product conveyor frame. Two drive wheels are rotatably mounted on the inner side of both the finished product conveyor frame and the defective product conveyor frame. A finished product conveyor belt and a defective product conveyor belt are respectively sleeved on the outer side of the drive wheels. A sorting motor is fixedly mounted on one side of the finished product conveyor frame, and a rotating rod is fixedly mounted on the output end of the sorting motor. The rotating rod is fixedly connected to one of the drive wheels.

[0010] Preferably, anti-dent plates are fixedly installed on opposite sides of the finished product conveyor frame and the defective product conveyor frame, and the top of the anti-dent plates is in contact with the bottom of the finished product conveyor frame and the defective product conveyor belt.

[0011] Preferably, a motor frame is fixedly installed on the opposite side of the finished product conveyor frame and the defective product conveyor belt, a sorting screw is rotatably installed on the inner side of the motor frame, and a sorting motor is fixedly installed on one side of the motor frame. The output end of the sorting motor is fixedly connected to the sorting screw, and a limit slide rod is fixedly installed on the opposite side of the motor frame.

[0012] Preferably, a sorting slide is fixedly installed at the bottom of the testing station, and the sorting slide has a threaded hole and a sliding hole inside.

[0013] Preferably, the sorting slide is threaded to the outside of the sorting screw through a threaded hole, and the sorting slide is slidably installed on the outside of the limiting slide through a sliding hole.

[0014] Preferably, both the bottom of the finished product conveyor frame and the defective product conveyor belt are fixedly equipped with support legs.

[0015] Compared with existing technologies, the beneficial effects of this invention are as follows: By using a multispectral camera, the limitations of traditional visual inspection can be overcome. By capturing signals from multiple specific spectral bands and utilizing the unique spectral fingerprint of substances, hidden defects on the surface and inside of ELISA test kits can be accurately identified. Combined with the collaborative work of the first industrial camera, the second industrial camera, and the laser-induced imager, all-round detection of the top, bottom, sides, and inside of the test kit can be achieved. It can effectively identify various defects such as microwell abnormalities, reagent contamination, label misalignment, and shell scratches, solving the pain point that traditional detection cannot identify hidden defects. The detection accuracy is greatly improved. At the same time, the transparent glass combined with the upper and lower double detection box design further ensures that there are no blind spots in the detection, providing a reliable guarantee for the production quality of the test kit. Furthermore, the device automates the entire process of feeding, testing, and sorting, eliminating the need for manual testing and sorting of reagent kits one by one. Operators only need to handle feeding, parameter settings, and equipment monitoring, significantly reducing labor intensity and human error. Simultaneously, the feeding drive component enables batch feeding, and the sorting component, through the cooperation of the sorting motor, sorting screw, and sorting slide, can flexibly adjust the position of the testing stage to adapt to the sorting requirements of reagent kits of different specifications. The finished product conveyor belt and the defective product conveyor belt enable the simultaneous separation of qualified and defective products, greatly improving testing and sorting efficiency and meeting the needs of large-scale automated production of ELISA test kits. At the same time, the stable operation of the electric cylinder and sorting motor ensures the continuous operation capability of the device, further enhancing production continuity. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the three-dimensional appearance structure of the present invention.

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the visual inspection component of the present invention.

[0019] Figure 4 This is a schematic diagram of the exploded structure of the visual inspection component of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the sorting component of the present invention.

[0021] Figure 6 This is a partial three-dimensional structural diagram of the sorting component of the present invention.

[0022] In the diagram: 1. Inspection table; 2. Feeding cylinder; 3. Mounting plate; 4. Anti-fall plate; 5. Pull handle; 6. Electric cylinder; 7. Push plate; 8. Support plate; 9. Anti-detachment plate; 10. Slide 1; 11. Slide 2; 12. Slide bar; 13. Placement frame; 14. Slide 3; 15. Inspection box; 16. Mounting frame; 17. Finished product transfer frame; 18. Finished product transfer belt; 19. Defective product transfer belt; 20. Drive motor; 21. Defective product transfer frame; 22. Support 23. Leg; 24. Rotating rod; 25. Limiting slide rod; 26. CNC box; 27. CNC display screen; 28. Switch button; 29. ​​Sorting motor; 30. Motor frame; 31. Sorting screw; 32. Transmission wheel; 33. Anti-dent plate; 34. Transparent glass; 35. Sorting slide; 36. First industrial camera; 37. Multispectral camera; 38. Second industrial camera; 39. Laser-induced imager; 40. Baffle; 41. Pull-out groove; 42. Slide four. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1-6This invention provides a technical solution: a visual inspection and sorting device for defects in ELISA test kit production, comprising a visual inspection component for detecting defects in the test kits, and a sorting component for sorting finished products and defective products. The visual inspection component is movably mounted on one side of the sorting component. The visual inspection component includes a material feeding drive component and an online inspection component. The material feeding drive component includes an inspection table 1, with a transparent glass 33 fixedly installed inside the inspection table 1. A mounting plate 3 is fixedly installed on the top of the inspection table 1, and an electric cylinder 6 is fixedly installed on one side of the mounting plate 3. The electric cylinder 6... A push plate 7 is fixedly installed at the output end, and an anti-fall plate 4 is fixedly installed on the top of the push plate 7. Two support plates 8 are symmetrically fixedly installed on the top of the inspection table 1. A feeding cylinder 2 is fixedly installed on the top of the support plate 8. A placement frame 13 is slidably installed inside the feeding cylinder 2. The online inspection component includes a CNC box 25 and two mounting brackets 16. A CNC display screen 26 is fixedly installed on one side of the CNC box 25. A switch button 27 is installed on one side of the CNC box 25. Inspection boxes 15 are fixedly installed inside the two mounting brackets 16. A first industrial camera 35 is fixedly installed on one side of each inspection box 15. A multispectral camera 36, ​​a second industrial camera 37, and a laser-induced imager 38 are mounted on two mounting brackets 16. One end of each bracket is fixed to one side of the unloading cylinder 2 and the bottom of the inspection table 1, respectively. Two inspection boxes 15 are located directly above and below the transparent glass 33, respectively. Both inspection boxes 15 are connected to the CNC box 25 via wires. Slide grooves 41 are provided on both sides of the inner cavity of the unloading cylinder 2. Slide groove 3 14 is provided on one side of the inner cavity of the unloading cylinder 2, and slide groove 2 11 is provided on the other side of the inner cavity of the unloading cylinder 2. Slide groove 10 is provided on one side of slide groove 2 11. The two mounting frames 13 are... Slide strips 12 are fixedly installed on both sides, and slide strips 12 are slidably installed on the inner side of slide groove 41. Pull-out grooves 40 are opened on both sides of the bottom of the placement frame 13, and baffles 39 are slidably installed inside the pull-out grooves 40. A pull handle 5 is fixedly installed on one end of the baffle 39. The baffle 39 is slidably installed on the inner side of slide groove 34 and slide groove 21. The pull handle 5 is slidably installed on the inner side of slide groove 10. Anti-detachment plates 9 are fixedly installed on both sides of the top of the detection table 1, and the two anti-detachment plates 9 are located on both sides of the transparent glass 33. The top of the anti-fall plate 4 is on the same horizontal plane as the bottom of the feed cylinder 2.

[0025] The working principle of the above technical solution is as follows: The ELISA test kits to be tested are neatly placed in batches into the placement frame 13 inside the feeding cylinder 2. The placement frame 13 is slidably engaged with the sliding groove 41 inside the feeding cylinder 2 via the sliding strips 12 on both sides, ensuring the stability of the placement frame 13 during vertical movement or stationary placement, preventing the kits from tipping over due to shaking. At this time, the baffle 39 is slidably installed at the bottom of the placement frame 13 via the pull groove 40, with both ends of the baffle 39 embedded in the sliding groove 11 and sliding groove 14 respectively. The pull handle 5 is slidably engaged inside the sliding groove 10. The baffle 39 provides stable support for the kits inside the placement frame 13, effectively preventing the kits from falling prematurely before the preparation work is completed, ensuring an orderly and controllable feeding process. The operator holds the pull handle 5 to move the baffle 39. 9. The reagent kit is completely pulled out from the bottom of the placement frame 13, releasing the support for the reagent kit. Under its own gravity, the ELISA test kit in the placement frame 13 falls smoothly to one side of the transparent glass 33 on the top of the test stage 1. At this time, the anti-drop plate 9 acts as a limit and protection for the falling reagent kit, preventing the reagent kit from sliding off the sides of the transparent glass 33. The anti-drop plate 4 is flush with the bottom of the feeding cylinder 2. Its core function is to prevent the next reagent kit that has not yet fallen in the placement frame 13 from falling prematurely, and to prevent multiple reagent kits from falling at the same time, causing accumulation and displacement. It ensures that the reagent kits fall one by one in an orderly manner to the preset initial position, preparing for the subsequent electric cylinder push. After the dropping is completed, the CNC box 25 automatically sends a command to start the electric cylinder 6. The output end of the electric cylinder 6 slowly extends, driving the push plate 7 to move smoothly. The pusher plate 7 pushes the reagent kit on the transparent glass 33 from its initial position toward the detection center at the top of the transparent glass 33. During the pushing process, the anti-drop plate 4 continues to function, blocking the next reagent kit to be dropped into the placement frame 13, preventing it from falling prematurely before the current reagent kit has been pushed and detected, avoiding collisions and accumulation between two reagent kits, and ensuring that the pusher plate 7 is not disturbed when pushing the current reagent kit. The pusher plate 7 moves at a constant speed to avoid the reagent kit tipping over or shifting its position due to excessive pushing speed, until the reagent kit is accurately pushed to the detection center at the top of the transparent glass 33. The operator presses the switch button 27 on one side of the CNC box 25 to start the online detection component, and accurately sets the detection parameters, including detection accuracy and defect rate, through the CNC display screen 26. After determining the threshold and detection time, the detection boxes 15 on the two mounting brackets 16 begin preheating. Once preheating is complete, the first industrial camera 35, multispectral camera 36, ​​second industrial camera 37, and laser-induced imager 38 initiate self-tests to ensure normal operation of all detection components and smooth signal transmission. The two detection boxes 15 are positioned directly above and below the transparent glass 33, forming a top-to-bottom beam detection pattern, preparing for subsequent all-around, blind-spot-free detection. In the detection box 15 above the transparent glass 33, the first industrial camera 35 captures a high-speed image of the top of the reagent kit, accurately capturing surface defects such as scratches on the outer shell, misaligned labels, and inadequate sealing. The multispectral camera 36 utilizes its core principle of "spectral separation-signal conversion-information fusion."By capturing signals from multiple specific spectral bands and utilizing the unique "spectral fingerprint" of substances, the system accurately identifies minute surface defects and hidden internal defects of the reagent kit, such as reagent contamination, microplate well deformation, and leaks. It can effectively identify microscopic defects that traditional cameras cannot capture. The laser-induced imager 38 emits a specific wavelength laser that penetrates the reagent kit's outer shell, assisting in the detection of internal reagent bottle leaks and misplacement. In the detection chamber 15 below the transparent glass 33, a second industrial camera 37, in conjunction with the laser-induced imager 38, clearly captures defects at the bottom of the reagent kit. All detection data is transmitted in real-time to the CNC box 25 via wires. The CNC box 25's built-in processing module performs data denoising, feature extraction, and defect determination, generating detection results. After detection, the CNC box 25 converts the defect determination results into control signals, which are transmitted to the electric cylinder 6 to activate it. The electric cylinder 6 performs a secondary action, extending its output end again to move the pusher plate 7 in the designated direction. The pusher plate 7 smoothly pushes the reagent kit that has completed testing on top of the transparent glass 33. The pushing direction is precisely controlled by the CNC box 25 based on the test results—if it is a qualified product, the pusher plate 7 pushes it towards the finished product transfer frame 17; if it is a defective product, the pusher plate 7 pushes it towards the defective product transfer frame 21. During the pushing process, the anti-drop plate 4 continues to block the next reagent kit in the placement frame 13, preventing it from falling prematurely onto the testing table 1 and avoiding collisions with the currently pushed reagent kit, ensuring the orderly progress of the testing and sorting process. The pusher plate 7 maintains a uniform speed, ensuring the reagent kit moves smoothly to the preset sorting position. After pushing is complete, the electric cylinder 6 resets, awaiting the next pushing command. At this time, the anti-drop plate 4 releases its obstruction of the next reagent kit, facilitating its orderly drop.

[0026] In another implementation scheme, such as Figures 1-6As shown, the sorting assembly includes a finished product conveyor frame 17 and a defective product conveyor frame 21. Two drive wheels 31 are rotatably mounted on the inner sides of both the finished product conveyor frame 17 and the defective product conveyor frame 21. A finished product conveyor belt 18 and a defective product conveyor belt 19 are respectively fitted onto the outer sides of the drive wheels 31. A sorting motor 28 is fixedly mounted on one side of the finished product conveyor frame 17, and a rotating rod 23 is fixedly mounted on the output end of the sorting motor 28. The rotating rod 23 is fixedly connected to one of the drive wheels 31. Anti-dent plates 32 are fixedly mounted on opposite sides of the finished product conveyor frame 17 and the defective product conveyor frame 21, with the top of the anti-dent plate 32 contacting the bottom of the finished product conveyor frame 17 and the defective product conveyor belt 19. A motor frame 29 is fixedly installed on the opposite side of the defective product conveyor belt 19. A sorting screw 30 is rotatably installed on the inner side of the motor frame 29, and a sorting motor 28 is fixedly installed on one side of the motor frame 29. The output end of the sorting motor 28 is fixedly connected to the sorting screw 30. A limit slide rod 24 is fixedly installed on the opposite side of the motor frame 29. A sorting slide block 34 is fixedly installed on the bottom of the inspection table 1. The sorting slide block 34 has a threaded hole and a sliding hole inside. The sorting slide block 34 is threaded to the outside of the sorting screw 30 through the threaded hole. The sorting slide block 34 is slidably installed on the outside of the limit slide rod 24 through the sliding hole. Support legs 22 are fixedly installed on the bottom of both the finished product conveyor frame 17 and the defective product conveyor belt 19.

[0027] Before the electric cylinder 6 pushes the product a second time, the sorting components have already started. The two sorting motors 28 work synchronously. One sorting motor 28 drives the transmission wheel 31 in the finished product transfer frame 17 to rotate at a constant speed through the rotating rod 23. The transmission wheel 31 drives the finished product transfer belt 18 to run stably, and the running speed matches the pushing speed of the electric cylinder. The other sorting motor 28 drives the sorting screw 30 in the motor frame 29 to rotate slowly. The sorting slide 34 is threaded with the sorting screw 30 through the internal threaded hole and slides smoothly along the limit slide 24, thereby driving the overall fine adjustment movement of the detection table 1. This precisely adjusts the relative position of the detection table 1 with the finished product transfer belt 18 and the defective product transfer belt 19, ensuring that the reagent kit can be accurately pushed onto the transfer belt. The anti-dent plate 32 is tightly attached to the finished product transfer belt 18 and the defective product transfer belt 19. The bottom of the 9-inch plate effectively prevents the conveyor belt from denting due to stress during operation, ensuring transmission stability. The electric cylinder pushes the qualified reagent kits onto the finished product conveyor belt 18. The finished product conveyor belt 18 runs at a constant speed, smoothly transporting the qualified reagent kits to the designated collection area for subsequent packaging and warehousing. If the reagent kit is defective, the pusher plate 7 pushes it onto the defective product conveyor belt 19. The defective product conveyor belt 19 transports the defective reagent kit to another designated collection area, facilitating subsequent centralized processing and analysis of the defect causes by the operators. The support leg 22 provides stable support for the entire sorting component, preventing shaking during operation and affecting sorting accuracy. After a single detection and sorting process is completed, the device automatically resets and can repeat all the above steps to achieve batch continuous detection and sorting of ELISA test kits.

[0028] Working principle: The ELISA test kits to be tested are neatly placed in batches into the placement frame 13 inside the feeding cylinder 2. The placement frame 13 is slidably engaged with the sliding groove 41 inside the feeding cylinder 2 via the sliding strips 12 on both sides, ensuring that the placement frame 13 remains stable when moving up and down or standing still, preventing the test kits from tipping over due to shaking. At this time, the baffle 39 is slidably installed at the bottom of the placement frame 13 through the pull groove 40, and the two ends of the baffle 39 are respectively embedded in the sliding groove 11 and the sliding groove 14. The pull handle 5 is slidably engaged inside the sliding groove 10. The baffle 39 provides stable support for the test kits in the placement frame 13, effectively preventing the test kits from falling prematurely before the preparation work is completed, ensuring that the feeding process is orderly and controllable. The operator holds the pull handle 5 and pulls the baffle 39 from the bottom of the placement frame 13. Completely withdrawn and freed from support, the ELISA test kits in placement frame 13 fall smoothly to one side of the transparent glass 33 at the top of the testing stage 1 under their own gravity. At this time, the anti-drop plate 9 acts as a limiting and protective measure for the falling kits, preventing them from sliding off the sides of the transparent glass 33. The anti-drop plate 4 remains flush with the bottom of the feeding cylinder 2. Its core function is to prevent the next kit in placement frame 13 from slipping off prematurely, avoiding the accumulation and displacement caused by multiple kits falling simultaneously, and ensuring that the kits fall one by one in an orderly manner to the preset initial position, preparing for the subsequent electric cylinder push. After the dropping is completed, the CNC box 25 automatically sends a command to start the electric cylinder 6. The output end of the electric cylinder 6 slowly extends, driving the push plate 7 to move smoothly. The push plate 7 pushes the transparent glass. The reagent kit in the initial position 33 moves towards the detection center at the top of the transparent glass 33. During the pushing process, the anti-drop plate 4 continuously functions to block the next reagent kit to be placed in the placement frame 13, preventing it from falling prematurely before the current reagent kit has completed the pushing and detection process, thus avoiding collisions and accumulation between the two reagent kits. At the same time, it ensures that the pusher plate 7 is not disturbed when pushing the current reagent kit. The pusher plate 7 moves at a constant speed to avoid the reagent kit tipping over or shifting its position due to excessive pushing speed, until the reagent kit is accurately pushed to the detection center at the top of the transparent glass 33. The operator presses the switch button 27 on one side of the CNC box 25 to start the online detection component and accurately sets the detection parameters through the CNC display screen 26, including detection accuracy, defect judgment threshold, detection time, etc. The detection box 15 on the mounting bracket 16 begins preheating. After preheating, the first industrial camera 35, multispectral camera 36, ​​second industrial camera 37, and laser-induced imager 38 initiate self-tests to ensure that each detection component is working properly and that signal transmission is smooth. The two detection boxes 15 are positioned directly above and below the transparent glass 33, forming a top-to-bottom beam detection pattern, preparing for subsequent all-around, blind-spot-free detection. In the detection box 15 above the transparent glass 33, the first industrial camera 35 captures a high-speed image of the top of the reagent kit, accurately capturing top appearance defects such as scratches on the outer shell, misaligned labels, and poor sealing. The multispectral camera 36 utilizes its core principle of "spectral separation-signal conversion-information fusion" to capture signals from multiple specific spectral bands.Leveraging the unique "spectral fingerprint" of materials, this technology accurately identifies minute surface defects and hidden internal flaws in the reagent kit, such as reagent contamination, microplate well deformation, and leaks. It effectively identifies microscopic defects that traditional cameras cannot capture. A laser-induced imager 38 emits a specific wavelength laser that penetrates the kit's outer shell, assisting in the detection of internal reagent bottle leaks and misplacement. In the detection chamber 15 beneath the transparent glass 33, a second industrial camera 37, in conjunction with the laser-induced imager 38, clearly captures defects at the bottom of the reagent kit. All detection data is transmitted in real-time to the CNC box 25 via wires. The CNC box 25's built-in processing module performs data denoising, feature extraction, and defect determination, generating detection results. After detection, the CNC box 25 converts the defect determination results into control signals. The reagent kit number is transmitted to the electric cylinder 6, which then performs a secondary action. The output end of the electric cylinder 6 extends again, driving the pusher plate 7 to move in the designated direction. The pusher plate 7 smoothly pushes the reagent kit that has completed testing on top of the transparent glass 33. The pushing direction is precisely controlled by the CNC box 25 according to the test results—if it is a qualified product, the pusher plate 7 pushes it towards the finished product transfer frame 17; if it is a defective product, the pusher plate 7 pushes it towards the defective product transfer frame 21. During the pushing process, the anti-drop plate 4 continues to block the next reagent kit in the placement frame 13 to prevent it from falling onto the testing table 1 prematurely and colliding with the currently pushed reagent kit, ensuring the orderly progress of the testing and sorting process. The pusher plate 7 maintains a constant speed to ensure the reagent kit moves smoothly to the preset sorting position. After the pushing is completed, the electric cylinder 6 resets, waiting for the next... Upon receiving a push command, the anti-drop plate 4 releases its obstruction of the next reagent kit, facilitating its orderly drop. Before the electric cylinder's second push, the sorting components have already started, with the two sets of sorting motors 28 working synchronously. One set of sorting motors 28 drives the transmission wheel 31 inside the finished product transfer frame 17 to rotate at a constant speed via the rotating rod 23. The transmission wheel 31 drives the finished product transfer belt 18 to run stably, with its running speed matching the electric cylinder's push speed. The other set of sorting motors 28 drives the sorting screw 30 inside the motor frame 29 to rotate slowly. The sorting slide 34 engages with the sorting screw 30 through its internal threaded hole and slides smoothly along the limiting slide 24, thereby causing the overall fine-tuning movement of the detection table 1 to precisely adjust the relative positions of the detection table 1 with the finished product transfer belt 18 and the defective product transfer belt 19. The system ensures that reagent kits are accurately pushed onto the conveyor belts. Anti-dent plates 32 are tightly fitted to the bottom of the finished product conveyor belt 18 and the defective product conveyor belt 19, effectively preventing dents due to stress during operation and ensuring transmission stability. A secondary push by the electric cylinder precisely pushes qualified reagent kits onto the finished product conveyor belt 18. The finished product conveyor belt 18 operates at a uniform speed, smoothly transporting qualified reagent kits to the designated collection area for subsequent packaging and warehousing. For defective products, push plates 7 precisely push them onto the defective product conveyor belt 19, which transports the defective reagent kits to another designated collection area for subsequent centralized processing and analysis of the defect causes. Support legs 22 provide stable support for the entire sorting assembly, preventing shaking during operation and affecting sorting accuracy.After a single sorting and testing cycle is completed, the device automatically resets and can repeat all the above steps to achieve batch continuous sorting and testing of ELISA test kits.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A visual inspection and sorting device for defects in ELISA test kit production, comprising a visual inspection component for detecting defects in the test kits, and a sorting component for sorting finished products and defective products, wherein the visual inspection component is movably mounted on one side of the sorting component, characterized in that: The visual inspection component includes a material feeding drive component and an online inspection component. The material feeding drive component includes an inspection table (1). A transparent glass (33) is fixedly installed inside the inspection table (1). An installation plate (3) is fixedly installed on the top of the inspection table (1). An electric cylinder (6) is fixedly installed on one side of the installation plate (3). A push plate (7) is fixedly installed at the output end of the electric cylinder (6). An anti-fall plate (4) is fixedly installed on the top of the push plate (7). Two support plates (8) are symmetrically fixedly installed on the top of the inspection table (1). A support plate (8) is fixedly installed on the top of the support plate (8). The feeding cylinder (2) has a placement frame (13) slidably installed inside it. The online detection component includes a CNC box (25) and two mounting brackets (16). A CNC display screen (26) is fixedly installed on one side of the CNC box (25). A switch button (27) is installed on one side of the CNC box (25). A detection box (15) is fixedly installed inside each of the two mounting brackets (16). A first industrial camera (35), a multispectral camera (36), a second industrial camera (37), and a laser-induced imager (38) are fixedly installed on one side of each detection box (15).

2. The defect visual inspection and sorting device for ELISA test kit production according to claim 1, characterized in that: One end of each of the two mounting brackets (16) is fixedly installed on one side of the feed cylinder (2) and the bottom of the inspection table (1). The two inspection boxes (15) are located directly above and directly below the transparent glass (33). Both inspection boxes (15) are connected to the CNC box (25) by wires.

3. The defect visual inspection and sorting device for ELISA test kit production according to claim 2, characterized in that: The inner cavity of the feeding cylinder (2) is provided with a sliding groove four (41) on both sides, a sliding groove three (14) on one side of the inner cavity of the feeding cylinder (2), a sliding groove two (11) on the other side of the inner cavity of the feeding cylinder (2), a sliding groove one (10) on one side of the sliding groove two (11), a sliding strip (12) is fixedly installed on both sides of the placement frame (13), and the sliding strip (12) is slidably installed on the inner side of the sliding groove four (41), a pull groove (40) is provided on both sides of the bottom of the placement frame (13), and a baffle (39) is slidably installed inside the pull groove (40), a pull handle (5) is fixedly installed on one end of the baffle (39), the baffle (39) is slidably installed on the inner side of the sliding groove three (14) and the sliding groove two (11), and the pull handle (5) is slidably installed on the inner side of the sliding groove one (10).

4. The defect visual inspection and sorting device for ELISA test kit production according to claim 3, characterized in that: The top of the testing platform (1) is fixedly installed with anti-detachment plates (9) on both sides, and the two anti-detachment plates (9) are located on both sides of the transparent glass (33). The top of the anti-fall plate (4) is on the same horizontal plane as the bottom of the feed cylinder (2).

5. The defect visual inspection and sorting device for the production of ELISA test kits according to claim 4, characterized in that: The sorting assembly includes a finished product conveyor frame (17) and a defective product conveyor frame (21). Two drive wheels (31) are rotatably installed on the inner side of both the finished product conveyor frame (17) and the defective product conveyor frame (21). A finished product conveyor belt (18) and a defective product conveyor belt (19) are respectively sleeved on the outer side of the drive wheels (31). A sorting motor (28) is fixedly installed on one side of the finished product conveyor frame (17), and a rotating rod (23) is fixedly installed at the output end of the sorting motor (28). The rotating rod (23) is fixedly connected to one of the drive wheels (31).

6. The defect visual inspection and sorting device for the production of ELISA test kits according to claim 5, characterized in that: Anti-dent plates (32) are fixedly installed on opposite sides of the finished product conveyor frame (17) and the defective product conveyor frame (21), and the top of the anti-dent plate (32) is in contact with the bottom of the finished product conveyor frame (17) and the defective product conveyor belt (19).

7. The defect visual inspection and sorting device for the production of ELISA test kits according to claim 6, characterized in that: A motor frame (29) is fixedly installed on the opposite side of the finished product conveyor frame (17) and the defective product conveyor belt (19). A sorting screw (30) is rotatably installed on the inner side of the motor frame (29), and a sorting motor (28) is fixedly installed on one side of the motor frame (29). The output end of the sorting motor (28) is fixedly connected to the sorting screw (30), and a limit slide rod (24) is fixedly installed on the opposite side of the motor frame (29).

8. The defect visual inspection and sorting device for the production of ELISA test kits according to claim 7, characterized in that: The bottom of the testing platform (1) is fixedly installed with a sorting slide (34), and the interior of the sorting slide (34) is provided with threaded holes and sliding holes.

9. A defect visual inspection and sorting device for the production of ELISA test kits according to claim 8, characterized in that: The sorting slide (34) is threadedly connected to the outside of the sorting screw (30) through a threaded hole, and the sorting slide (34) is slidably installed on the outside of the limiting slide (24) through a sliding hole.

10. A defect visual inspection and sorting device for the production of ELISA test kits according to claim 9, characterized in that: The bottom of both the finished product conveyor frame (17) and the defective product conveyor belt (19) is fixedly equipped with support legs (22).

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