Large barrel top cover locking detection equipment

Abstract

The utility model discloses large barrel top cover locking detection equipment, which comprises a conveying mechanism for conveying a barrel cover, and a direct-view detection unit and an oblique-view detection unit which are arranged above the conveying mechanism through a bracket assembly, are used for respectively detecting defects of a locking top surface and a curled edge of the barrel cover, and are provided with a light source module for illumination. And a control host beside the conveying mechanism is responsible for controlling the conveying mechanism through a built-in data processing module and a storage module and is used for analyzing a detection image and identifying barrel cover locking defect information based on a deep learning algorithm, and the storage module is used for recording the image and an analysis result, so that defect tracing and production management are realized. The utility model aims to provide a complete and automatic large barrel top cover locking detection device which is formed by a plurality of functional modules including the conveying mechanism, the direct vision detection unit, the squint detection unit, the light source module, the support assembly, the data processing module and the control host. And comprehensive defect detection can be carried out on locking of the barrel cover from different angles.

Description

Technical Field

[0001] This utility model relates to the field of automated production line equipment for steel drums, and in particular to a large drum lid locking and inspection device. Background Technology

[0002] With the widespread use of steel drums (commonly known as large drums) in various industrial production and transportation processes, especially in high-demand fields such as chemicals, food, and pharmaceuticals, the usage of steel drums has continued to grow, and the requirements for their quality are becoming increasingly stringent. Steel drums not only serve as important packaging containers, playing a crucial role in logistics and storage, but also, when transporting special goods such as toxic, perishable, and hazardous chemicals, the sealing and locking quality of steel drums is a vital safety guarantee. Therefore, the quality requirements for steel drums have far exceeded the previous focus on simple physical strength, especially the locking quality of the drum lid (flange), which has become a crucial indicator of whether a steel drum is qualified.

[0003] With the diversification of the types of goods loaded inside steel drums and the increasingly stringent product quality standards, especially in the transportation and storage of food and chemicals, the quality of the drum lid's locking mechanism has become crucial. Different items place higher demands on the sealing performance, pressure resistance, and corrosion resistance of the drum lid's locking mechanism. If the locking mechanism is substandard, it can not only cause the lid to detach or loosen during transportation, affecting the safety of the contents, but also potentially lead to chemical leaks, environmental pollution, or even serious accidents such as fires. For special items such as chemicals and pharmaceuticals, substandard locking quality can cause the contents to deteriorate, become ineffective, or directly endanger human health. Therefore, ensuring the quality of steel drum locking mechanisms, especially the reliability of the drum lid's locking mechanism, has become a critical issue that all industries must pay attention to.

[0004] However, existing methods for checking the locking mechanism mostly rely on manual operation. While this method can determine the quality of the lid locking to some extent, it has significant limitations and shortcomings. First, manual inspection is relatively inefficient, and each operator has different judgment standards and levels of effort, which can easily lead to missed inspections or misjudgments. As production scales up, the workload of manual inspection becomes increasingly heavy, and operators are prone to fatigue and decreased concentration, thus affecting the accuracy of the inspection. Long hours of monotonous work can also cause operators to overlook details, resulting in some poorly locked steel drums entering the market and creating unnecessary quality risks.

[0005] This unstable manual inspection method not only affects production efficiency but may also lead to a large number of substandard products entering the market, seriously damaging brand reputation. Especially for products with high sealing requirements, such as chemicals, pharmaceuticals, and food, improper lid sealing can cause the internal contents to deteriorate, even posing a significant threat to the environment and human safety. For example, leaked toxic chemicals may cause fires, explosions, or environmental pollution, while leaks or spoilage of food and pharmaceuticals directly endanger consumers' health and lives. Therefore, traditional manual inspection methods can no longer meet the quality control requirements of modern industry for steel drum sealing, necessitating the introduction of more efficient and accurate inspection technologies to address these challenges. Utility Model Content

[0006] The purpose of this invention is to provide a barrel lid locking detection device that can identify and judge the barrel lid locking status in real time and accurately, effectively overcome the errors in manual operation, reduce labor intensity, and perform all-round and blind-angle detection of the barrel lid locking opening, thereby greatly improving the detection efficiency.

[0007] To achieve the above objectives, this utility model adopts the following solution: a large barrel lid locking detection device, comprising:

[0008] A conveying mechanism used to transport the bucket lids to be inspected;

[0009] A direct-view inspection unit is installed above the conveying mechanism to inspect the top surface defects of the large and small openings of the barrel lid.

[0010] The oblique inspection unit is located above the conveying mechanism and downstream of the direct inspection unit. It is used to detect the curling defects of the large and small openings of the bucket lid.

[0011] The light source modules are respectively configured on the direct-view detection unit and the oblique-view detection unit to provide the lighting conditions required for detection;

[0012] A bracket assembly, located on one side of the conveying mechanism, is used to install and support the direct-view detection unit and the oblique-view detection unit respectively, and supports the position adjustment of the direct-view detection unit and the oblique-view detection unit to adapt to the detection requirements of different bucket lid specifications;

[0013] The control host is located on one side of the conveying mechanism and is used to control the operation and stop of the conveying mechanism. It has a built-in data processing module and a storage module.

[0014] The data processing module uses deep learning algorithms to analyze the image data collected by the direct-view and oblique-view detection units to identify defect information during the lid locking process; the storage module is used to save the images and analysis results generated during the detection process for defect traceability and production management.

[0015] The above solution comprises multiple functional modules, including a conveying mechanism, direct-view and oblique-view detection units, a light source module, a support assembly, a data processing module, and a control host, forming a complete and automated large barrel lid locking and inspection device. The conveying mechanism stably delivers the lids to be inspected to the inspection station. By configuring both direct-view and oblique-view detection units, the system can perform comprehensive defect inspection of the lids from different angles, ensuring that the inspection covers all locking parts of the lids. The light source module provides appropriate lighting conditions to ensure the stability of the inspection and the clarity of the images. The design of the support assembly can flexibly adapt to the inspection needs of lids of different sizes, and its position can be adjusted according to different lid sizes to ensure the accuracy of each inspection. The data processing module, combined with deep learning algorithms, can efficiently process the acquired images, identify and classify various defects on the lid locking openings in real time, further improving the intelligence and automation level of the equipment. The control host precisely controls the operation of the conveying mechanism to ensure the efficient operation of the inspection station, and saves the inspection results through a built-in storage module, facilitating subsequent defect traceability and production management.

[0016] As a preferred embodiment of this utility model, the direct-view detection unit includes:

[0017] The first direct-view camera is used to detect defects on the top surface of the lid when it is fully locked.

[0018] The second direct-view camera, located to one side of the first direct-view camera, is used to detect defects on the top surface of the small-mouth lock on the bucket lid.

[0019] As a preferred embodiment of this utility model, the strabismus detection unit includes:

[0020] The first oblique-view camera group is symmetrically arranged on the left and right sides of the conveying mechanism to detect the curling defects of the large-mouth locking of the barrel lid.

[0021] The second oblique-view camera group is symmetrically arranged on the left and right sides of the conveying mechanism downstream of the first oblique-view camera group, and is used to detect the curling defects of the small opening of the barrel lid.

[0022] In the two preferred solutions described above, the use of two direct-view cameras and two sets of symmetrical oblique-view cameras enables defect detection of the lid from different angles, particularly for defects on the top surface and rolled edges. This multi-angle detection scheme effectively avoids defects that might be missed due to a single detection angle, comprehensively improving the accuracy and reliability of the detection. The direct-view cameras primarily target defects on the top surface of the lid, while the oblique-view cameras can effectively detect defects on the rolled edges, ensuring that no defects are missed.

[0023] As a preferred embodiment of this utility model, the support assembly includes:

[0024] A direct-view locking inspection station bracket is fixed on the ground on one side of the conveying mechanism to support and fix the first direct-view camera and the second direct-view camera;

[0025] The oblique-view locking inspection station bracket is fixed on the ground on one side of the conveying mechanism of the direct-view locking inspection station bracket, and is used to support and fix the first oblique-view camera group and the second oblique-view camera group.

[0026] The light source modules are respectively installed on the direct-view lock fitting inspection station bracket and the oblique-view lock fitting inspection station bracket.

[0027] As a preferred embodiment of this utility model, the direct-view locking and inspection station support includes two parallel vertically fixed direct-view station uprights. Each of the two direct-view station uprights has a horizontally extending direct-view cantilever on its top, which extends to the top of the conveying mechanism. A direct-view camera frame is adjustablely mounted on each of the two direct-view cantilever arms. The first direct-view camera and the second direct-view camera are respectively fixed on their respective direct-view camera frames. The direct-view cantilever arms can slide up and down along the direct-view station uprights to adjust their height, and the direct-view camera frames can slide back and forth along their respective direct-view cantilever arms to adjust their horizontal position.

[0028] The oblique locking and inspection station support includes oblique station uprights that are vertically fixed to the ground in parallel. Oblique cantilever arms that extend horizontally to the top of the two oblique station uprights are respectively provided. Oblique camera frames are adjustablely installed on the two oblique cantilever arms. The first oblique camera group and the second oblique camera group are respectively fixed on the corresponding oblique camera frames. The oblique cantilever arms can slide up and down along the oblique station uprights to adjust their height. The oblique camera frames can slide back and forth along the oblique cantilever arms to adjust their horizontal position.

[0029] The light source modules are respectively mounted on the direct-view camera mount and the oblique-view camera mount.

[0030] The bracket assembly design in the above scheme provides the system with extremely high flexibility, allowing adjustment of the relative positions of the direct-view and oblique-view cameras according to different sizes of bucket lids, ensuring optimal viewing angle and position for each inspection. Especially when dealing with bucket lids of different sizes and shapes, the adjustability of the bracket can avoid inspection errors caused by size differences, thereby ensuring the comprehensiveness and accuracy of the inspection.

[0031] As a preferred embodiment of this utility model, the light source module includes a direct-view light source hole and an oblique-view light source hole that pass through the direct-view camera frame and pass through the oblique-view camera frame respectively. A first annular light source coaxial with the direct-view light source hole is provided at the top of the direct-view camera frame. A reflector bowl is provided on the first annular light source. A clearance hole passes through the center of the top of the reflector bowl. The lenses of the first direct-view camera and the second direct-view camera are respectively installed in the corresponding clearance holes. A second annular light source coaxial with the oblique-view light source hole is provided at the bottom of the oblique-view camera frame. The first oblique-view camera group and the second oblique-view camera group are respectively symmetrically installed on the bottom of the oblique-view camera frame on the left and right sides of the second annular light source, and the lenses are obliquely downward.

[0032] The design of the central light source module in the above scheme ensures sufficient illumination for each detection area through the cooperation of the first and second ring light sources, and further optimizes the illumination uniformity of the direct-view detection unit through the design of the reflector bowl. This design can effectively eliminate interference from external light sources, provide stable lighting conditions, and ensure that the camera can accurately capture images of the bucket lid under different ambient lighting conditions.

[0033] As a further embodiment of this invention, a first light shield is provided on the top of the direct-view camera frame to cover the reflector bowl, and a second light shield is provided on the top of the oblique-view camera frame to cover the oblique-view camera frame. The first and second light shields further reduce the influence of stray light and shadows, ensuring the clarity and consistency of image acquisition, especially in production environments with complex lighting conditions, providing more reliable detection data. The light shields not only improve image quality but also protect the camera from environmental pollution, extending the equipment's lifespan and stability.

[0034] As a further embodiment of this utility model, vertical poles are respectively provided on the top surface of the direct-view camera bracket, and camera brackets that can slide up and down are provided on the poles. One end of the camera bracket extends to the center of the clearance hole. The first direct-view camera and the second direct-view camera are respectively installed at the end of the camera bracket, which further facilitates the adjustment of the height of the first direct-view camera.

[0035] As a further embodiment of this invention, sensing devices are respectively installed on the direct-view cantilever and the oblique-view cantilever to detect whether the conveying mechanism has correctly moved the bucket lid to the predetermined position. The detection data is then transmitted to the control host to control the conveying mechanism to stop or continue operation. This ensures that the first and second direct-view cameras can capture valid images of the top surface of the bucket lid with its large and small openings locked, and that the first and second oblique-view camera groups can capture valid images of the rolled edges of the bucket lid with its large and small openings locked. Automated bucket lid positioning via sensing devices significantly improves the reliability and accuracy of the equipment, avoiding the uncertainties caused by manual operation. Simultaneously, the linkage between the sensing devices and the control host can automatically control the stopping and continuing of the conveying mechanism based on the detection data, further improving the automation and intelligence of the system. Especially when the production line is operating at high efficiency, it ensures that each bucket lid undergoes precise inspection, thereby maximizing product quality.

[0036] As a further embodiment of this utility model, the control host also includes:

[0037] The alarm module is used to issue an alarm signal when a defect is detected. When a defect is detected, the alarm module can issue an alarm in a timely manner to notify the operator or manager to intervene or make corrections.

[0038] The display module is used to display the inspection results and defect images in real time, providing quality control personnel with visual data support and facilitating timely tracking and analysis of defect conditions.

[0039] In summary, the advantages of this invention compared to existing technologies are as follows: This invention achieves efficient and accurate automated inspection through multi-angle detection and deep learning technology. The equipment combines direct-view and oblique-view detection technologies to detect locking defects in the large and small openings of the lid. The direct-view camera mainly detects defects on the top surface, such as deformation, missing lids, and cracks, while the oblique-view camera focuses on the rolled edge, detecting problems such as uneven rolling, cracks, and deformation. Through the complementarity of direct-view and oblique-view cameras, all key parts of the lid are comprehensively covered, solving the problem that traditional inspection methods cannot handle blind spots related to rolled edges, ensuring the comprehensiveness and accuracy of the inspection.

[0040] Furthermore, leveraging deep learning algorithms and machine vision technology, the system can accurately analyze and identify defects on the lids, automatically classify and quickly locate the defects, and achieve rapid detection, enabling timely rejection of defective products and ensuring the smooth operation of the production line. This high-precision and high-efficiency detection capability improves production efficiency and effectively ensures product quality. It is worth mentioning that this invention employs an adjustable support assembly, ensuring that the equipment can be flexibly adjusted during the production of lids of different specifications to meet diverse product needs, further enhancing the equipment's adaptability.

[0041] Furthermore, the data processing and storage modules within the control unit can save image data and analysis results from each inspection process. This provides detailed records for production management, making it easy to trace the source of defective products, and also helps in the localization and analysis of problems during production, thereby further improving product quality management. Moreover, the application of intelligent image processing algorithms and automated control systems reduces reliance on manual operation, lowers the risk of human error, simplifies operating procedures, and improves equipment usability. This invention replaces manual inspection with automated inspection, which not only significantly reduces the labor intensity of personnel but also reduces the risk of false positives and false negatives, and greatly improves the automation level and work efficiency of the production line.

[0042] Furthermore, this invention significantly reduces labor intensity and the risk of false positives and false negatives by replacing manual inspection with automated inspection, while greatly improving the automation level and work efficiency of the production line. The real-time inspection capability can be linked with the automatic sorting system on the automated production line, ensuring immediate feedback upon detecting defects, triggering alarms or rejecting defective products, thereby effectively reducing subsequent processing costs caused by product non-conformity.

[0043] In summary, this invention, by integrating advanced multi-angle detection technology, deep learning algorithms, and an intelligent control system, significantly improves the quality inspection accuracy during the lid-locking process. This not only increases production efficiency but also reduces labor costs and provides strong support for quality traceability and management. Its flexible design, intelligent algorithms, and efficient operating mode demonstrate outstanding economic and technological advantages, fully meeting the ever-increasing demands for quality control and automation in modern industrial production. Attached Figure Description

[0044] Figure 1 This is one of the three-dimensional views of this utility model.

[0045] Figure 2 This is a second perspective view of the present invention, and an enlarged view of a partial area in the figure.

[0046] Figure 3 This is the third perspective view of the present invention.

[0047] Figure 4 This is the fourth perspective view of the present invention.

[0048] Figure 5 for Figure 4 A magnified view of point A in the middle.

[0049] Figure 6 This is the fifth perspective view of the present invention.

[0050] Figure 7 for Figure 6 A magnified view of point B in the middle.

[0051] Figure 8 for Figure 6 A magnified view of point C in the middle.

[0052] Figure 9 This is a bottom view of the direct-view detection unit and the oblique-view detection unit mounted on the bracket assembly in this utility model.

[0053] Figure 10 The figures show cross-sectional views of the direct-view detection unit and the oblique-view detection unit mounted on the bracket assembly in this utility model, as well as enlarged views of a local area.

[0054] Explanation of reference numerals in the attached drawings: 1. Conveying mechanism; 2. Direct-view detection unit; 3. Oblique-view detection unit; 4. Light source module; 5. Support assembly; 6. Control host; 7. Sensing device; 10. Bucket lid; 21. First direct-view camera; 22. Second direct-view camera; 31. First oblique-view camera group; 32. Second oblique-view camera group; 41. Direct-view light source hole; 42. First ring light source; 43. Reflector bowl; 44. First light shield; 45. 46. ​​Oblique-view light source hole; 47. Second ring light source; 51. Second light shield; 52. Direct-view locking and inspection station bracket; 53. Direct-view station stand; 54. Direct-view cantilever; 55. Direct-view camera stand; 56. Oblique-view locking and inspection station bracket; 57. Oblique-view station stand; 58. Oblique-view cantilever; 61. Alarm module; 62. Display module; 431. Clearance hole; 541. Upright pole; 542. Camera bracket. Detailed Implementation

[0055] The following detailed description provides various embodiments or examples for implementing this utility model. Of course, these are merely embodiments or examples and are not intended to be limiting. Additionally, repeated reference numerals, such as repeated numbers and / or letters, may be used in different embodiments. These repetitions are for the purpose of simple and clear description of the invention and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0056] Furthermore, spatial terms may be used, such as "below," "lower," "from the inside out," "above," "upper," and similar terms. These relational terms are used to facilitate the description of the relationship between some elements or features in the drawings and other elements or features. These spatial relational terms include different orientations of the device in use or operation, as well as the orientations described in the drawings. The device may be rotated 90 degrees or otherwise to different orientations, and the spatially related adjectives used therein can be interpreted in the same way. Therefore, they should not be construed as limiting the invention. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0057] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: Figures 1 to 10The illustrated equipment for inspecting the locking of a large barrel lid includes a conveyor mechanism 1 for transporting the lid 10 to be inspected. In this embodiment, the conveyor mechanism 1 employs an existing belt conveyor with an electric drive system to ensure that the lid 10 moves smoothly and accurately to the designated inspection position during the inspection process. A support assembly 5 is provided on one side of the conveyor mechanism 1. A direct-view inspection unit 2 is provided above the conveyor mechanism 1 near the inlet position via the support assembly 5 for inspecting defects on the top surface of the lid 10 at both the large and small openings. The direct-view inspection unit 2 includes a first direct-view camera 21 and a second direct-view camera 22. The first direct-view camera 21 is used to inspect defects on the top surface of the lid 10 at the large opening (such as deformation, missing lid, cracks, etc.), while the second direct-view camera 22 is located to one side of the first direct-view camera 21 and is used to inspect defects on the top surface of the lid 10 at the small opening (such as deformation, missing lid, cracks, etc.). A slant-view detection unit 3 is installed above the conveyor mechanism 1, located downstream of the direct-view detection unit 2, via a bracket assembly 5. This slant-view detection unit 3 is used to detect curling defects in the large and small openings of the lid 10 during locking. The slant-view detection unit 3 includes a first slant-view camera group 31 and a second slant-view camera group 32. These two slant-view camera groups are symmetrically arranged on the left and right sides of the conveyor mechanism 1, respectively. That is, the first slant-view camera group 31 and the second slant-view camera group 32 each have two high-resolution industrial cameras. The two industrial cameras forming the first slant-view camera group 31 are respectively mounted on the left and right sides above the conveyor mechanism 1 to detect curling defects (such as deformation, cracking, etc.) in the large opening of the lid 10 during locking. The two industrial cameras forming the second slant-view camera group 32 are mounted on the left and right sides above the downstream of the conveyor mechanism 1 to detect curling defects (such as deformation, cracking, etc.) in the small opening of the lid 10 during locking. The lenses of the two industrial cameras in each of the first slant-view camera group 31 and the second slant-view camera group 32 are set at an angle downwards, facing opposite directions. The camera group's oblique viewing angle is adjustable, ensuring that the inspection covers all critical parts of the barrel lid. The support assembly 5 includes: a direct-view locking inspection station support 51 fixed to the ground on one side of the conveying mechanism 1 for supporting and fixing the first direct-view camera 21 and the second direct-view camera 22; and an oblique-view locking inspection station support 55 also fixed to the ground on one side of the conveying mechanism 1 for supporting and fixing the first oblique-view camera group 31 and the second oblique-view camera group 32.

[0058] It should be noted that the direct-view locking inspection station bracket 51 and the oblique-view locking inspection station bracket 55 can respectively support the position adjustment of the direct-view inspection unit 2 and the oblique-view inspection unit 3 they support, so as to adapt to the inspection requirements of different bucket lid specifications. Specifically: such as Figures 2 to 10As shown, the direct-view locking and inspection station support 51 includes two parallel, vertically fixed direct-view station uprights 52. Each of the two direct-view station uprights 52 has a horizontally extending direct-view cantilever 53 extending above the conveying mechanism 1. A direct-view camera mount 54 is adjustablely mounted on each of the two direct-view cantilever arms 53. The first direct-view camera 21 and the second direct-view camera 22 are respectively fixed on their corresponding direct-view camera mounts 54. Figures 3 to 7 As shown, the direct-view cantilever 53 can slide up and down along the direct-view workstation frame 52 to adjust its height, and the direct-view camera mount 54 can slide back and forth along the direct-view cantilever 53 to adjust its horizontal position. Figures 2 to 10 As shown, the oblique locking and inspection station support 55 includes oblique station uprights 56 that are vertically fixed to the ground in parallel. Oblique cantilever arms 57 that extend horizontally to the top of the two oblique station uprights 56 are respectively provided. Oblique camera frames 58 are adjustablely mounted on the two oblique cantilever arms 57. The first oblique camera group 31 and the second oblique camera group 32 are respectively fixed on the corresponding oblique camera frames 58. The oblique cantilever arm 57 can slide up and down along the oblique station upright 56 ​​to adjust its height. The oblique camera frame 58 can slide back and forth along the oblique cantilever arm 57 to adjust its horizontal position, ensuring that the camera can be accurately positioned according to the different specifications of the barrel lid 10.

[0059] To provide the necessary illumination for detection, light source modules 4 are respectively installed on the direct-view camera frame 54 and the oblique-view camera frame 58 to provide appropriate lighting conditions and ensure that the detection process is not interfered with by external light sources. The light source module 4 includes a direct-view light source hole 41 passing through the direct-view camera frame 54 and an oblique-view light source hole 45 passing through the oblique-view camera frame 58. A first annular light source 42, coaxial with the direct-view light source hole 41, is provided at the top of the direct-view camera frame 54. A reflector bowl 43 is provided over the first annular light source 42 to optimize the uniformity of illumination. A clearance hole 431 passes through the center of the top of the reflector bowl 43. The lenses of the first direct-view camera 21 and the second direct-view camera 22 are respectively installed in the corresponding clearance holes 431 to ensure that each detection area receives sufficient illumination and to avoid image blurring or distortion due to uneven illumination. A second annular light source 46, coaxial with the oblique light source hole 45, is provided at the bottom of the oblique camera mount 58. The first oblique camera group 31 and the second oblique camera group 32 are symmetrically mounted on the bottom of the oblique camera mount 58 on the left and right sides of the second annular light source 46 via two sets of optical axes, thus ensuring that each detection area receives sufficient illumination. Specifically, as shown in Figure 2 to... Figure 10As shown, in this embodiment, the two industrial cameras in each oblique camera group are fixed by cross-shaped fixing clips, which allows for convenient adjustment when the oblique cameras need to be adjusted. Vertical supports 541 are vertically mounted on the top surface of the direct-view camera frame 54, and camera brackets 542 that can slide up and down are mounted on the supports 541. One end of the camera bracket 542 extends to the center of the clearance hole 431, and the first direct-view camera 21 and the second direct-view camera 22 are respectively mounted at the ends of the camera bracket 542. Figure 1 and Figure 3 As shown, to reduce interference from external light sources, a first light shield 44 is provided on the top of the direct-view camera mount 54 to cover the reflector bowl 43, and a second light shield 47 is provided on the top of the oblique-view camera mount 58 to cover the oblique-view camera mount 58. The first light shield 44 is used to block light interference from the top of the reflector bowl 43 and prevent the light scattered from the top of the reflector bowl 43 from interfering with other external equipment. The second light shield 47 is used to prevent the two oblique-view camera groups from being affected by side light sources.

[0060] like Figures 2 to 10 As shown, to ensure the stable and accurate alignment of the bucket lid 10 at the inspection station and avoid displacement during the inspection process, sensing devices 7 are respectively provided on the direct-view cantilever 53 and the oblique-view cantilever 57. These devices are used to detect whether the conveying mechanism 1 has correctly moved the bucket lid 10 to the predetermined position, ensuring that the direct-view inspection unit 2 and the oblique-view inspection unit 3 can capture valid images. The sensing devices 7 can use photoelectric sensors, ultrasonic sensors, or touch sensors, etc., to automatically adjust the operating state of the conveying mechanism 1 by monitoring the position of the bucket lid 10 in real time, ensuring accurate alignment for each inspection. This ensures that the first direct-view camera 21 and the second direct-view camera 22 can capture valid images of the top surface of the bucket lid 10 with its large and small openings locked, and that the first oblique-view camera group 31 and the second oblique-view camera group 32 can capture valid images of the rolled edges of the bucket lid 10 with its large and small openings locked. In this embodiment, a photoelectric sensor is used as an example.

[0061] In addition, such as Figure 1 and Figure 3As shown, a control host 6 is provided on one side of the conveying mechanism 1. The control host 6 is responsible for controlling the operation and stop of the conveying mechanism 1. The control host 6 has a built-in data processing module and a storage module. The data processing module uses deep learning algorithms (such as convolutional neural networks, Siamese neural networks, triplet loss networks, and other image analysis and comparison algorithms) to analyze the image data collected by the direct-view detection unit 2 and the oblique-view detection unit 3, enabling efficient identification of various defects during the locking process of the lid 10, including but not limited to top surface defects and rolled edge defects. This data processing module can automatically adjust the detection parameters according to the different sizes and shapes of the lid 10, ensuring efficient and accurate defect identification. The data processing module works in conjunction with the storage module to save detection images and analysis results in real time, providing support for subsequent defect traceability and production management. Furthermore, the control host 6 can receive feedback signals from the sensing device 7, monitor the position of the lid 10 in real time, and control whether the conveying mechanism 1 continues to operate. The control host 6 also includes an alarm module 61 and a display module 62. When a defect is detected, the alarm module 61 can promptly issue an alarm signal to notify the operator or manager for intervention or correction. Display module 62 displays the detection results and defect images in real time, providing quality control personnel with visualized data support.

[0062] The working principle of this utility model is as follows:

[0063] The bucket lid is first positioned manually or mechanically, such as by a robotic arm, to ensure the accurate placement of the locking opening. Then, it is conveyed by conveyor 1 to the area below the direct-view detection unit 2. Upon reaching the sensing device 7 located within the direct-view detection unit 2, the sensor is triggered, receiving a signal. The photoelectric trigger sensor has a trigger accuracy of 0.5mm, ensuring that each time it is triggered, the locking opening is precisely in the center of the field of view of the first and second direct-view cameras 21 and 22. Both first ring light sources 42 illuminate simultaneously, and the first and second direct-view cameras 21 and 22 simultaneously capture images, which are then sent to the control host 6. After software calculation and comparison, a judgment result is obtained. Qualified bucket lids proceed with normal production, while unqualified lids are detected by the control alarm module 61, requiring manual confirmation and removal of the defective product.

[0064] Next, after the direct-view detection unit 2 determines that the bucket lid is qualified, the control host 6 controls the conveyor mechanism 1 to continue conveying it downstream to the station of the oblique-view detection unit 3. Upon contact with the sensing device 7 at the location of the oblique-view detection unit 3, the sensor is triggered and receives a signal. The photoelectric trigger sensor has a trigger accuracy of 0.5mm, ensuring that each time it is triggered, the first oblique-view camera group 31 and the second oblique-view camera group 32 capture images precisely at the center of the locking opening's field of view, and the two second ring light sources 46 illuminate simultaneously. The first oblique-view camera group 31 and the second oblique-view camera group 32 simultaneously take pictures and send them to the control host 6. After software calculation and comparison, a judgment result is obtained. If the bucket lid is qualified, production proceeds normally; if it is unqualified, the control alarm module 61 issues an alarm signal, requiring manual confirmation and removal of the defective product.

[0065] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the locking mechanism of a large barrel lid, characterized in that, The application relates to a barrel cap locking detection device. The device comprises: a conveying mechanism (1) for conveying barrel caps (10) to be detected; a direct-viewing detection unit (2) arranged above the conveying mechanism (1) and used for detecting top surface defects of large-mouth and small-mouth locking of the barrel caps (10); an oblique-viewing detection unit (3) arranged above the conveying mechanism (1) and located at a downstream position of the direct-viewing detection unit (2) and used for detecting edge curling defects of large-mouth and small-mouth locking of the barrel caps (10); a light source module (4) arranged on the direct-viewing detection unit (2) and the oblique-viewing detection unit (3) respectively to provide light conditions required for detection; a support assembly (5) arranged on one side of the conveying mechanism (1) and used for mounting and supporting the direct-viewing detection unit (2) and the oblique-viewing detection unit (3) respectively and supporting position adjustment of the direct-viewing detection unit (2) and the oblique-viewing detection unit (3) to adapt to detection requirements of different barrel cap specifications; a control host (6) arranged on one side of the conveying mechanism (1) and used for controlling running and stopping of the conveying mechanism (1), wherein a data processing module and a storage module are arranged in the control host (6); the data processing module adopts a deep learning algorithm to analyze image data collected by the direct-viewing detection unit (2) and the oblique-viewing detection unit (3) to identify defect information in the locking process of the barrel caps (10); 2. A large tub top cover lock installation inspection apparatus according to claim 1, characterized by the storage module is used for saving images and analysis results generated in the detection process to facilitate defect tracing and production management. The direct-viewing detection unit (2) comprises: a first direct-viewing camera (21) used for detecting top surface defects of large-mouth locking of the barrel caps (10); 3. A large tub top cover lock installation inspection apparatus according to claim 2, characterized by a second direct-viewing camera (22) arranged on one side of the first direct-viewing camera (21) and used for detecting top surface defects of small-mouth locking of the barrel caps (10). The oblique-viewing detection unit (3) comprises: a first oblique-viewing camera group (31) symmetrically arranged on left and right sides of the conveying mechanism (1) and used for detecting edge curling defects of large-mouth locking of the barrel caps (10); 4. A large tub top cover lock installation inspection apparatus according to claim 3, characterized by a second oblique-viewing camera group (32) symmetrically arranged on left and right sides of the conveying mechanism (1) downstream of the first oblique-viewing camera group (31) and used for detecting edge curling defects of small-mouth locking of the barrel caps (10). The support assembly (5) comprises: a direct-viewing locking detection workbench support (51) fixed on the ground on one side of the conveying mechanism (1) and used for carrying and fixing the first direct-viewing camera (21) and the second direct-viewing camera (22); an oblique-viewing locking detection workbench support (55) fixed on the ground on one side of the conveying mechanism (1) on one side of the direct-viewing locking detection workbench support (51) and used for carrying and fixing the first oblique-viewing camera group (31) and the second oblique-viewing camera group (32); the light source module (4) is arranged on the direct-viewing locking detection workbench support (51) and the oblique-viewing locking detection workbench support (55) respectively.

5. A large tub top cover lock installation inspection apparatus according to claim 4, characterized by The straight-view locking detection station support (51) comprises straight-view station vertical supports (52) fixed on the ground in parallel and vertically, straight-view suspending arms (53) horizontally extending above the conveying mechanism (1) are respectively arranged at the top of the two straight-view station vertical supports (52), straight-view camera racks (54) are adjustably mounted on the two straight-view suspending arms (53) respectively, the first straight-view camera (21) and the second straight-view camera (22) are fixed on the corresponding straight-view camera racks (54) respectively, the straight-view suspending arms (53) can slide up and down along the straight-view station vertical supports (52) to adjust the height, and the straight-view camera racks (54) can slide back and forth along the straight-view suspending arms (53) to adjust the horizontal position. The oblique-view locking detection station support (55) comprises oblique-view station vertical supports (56) fixed on the ground in parallel and vertically, oblique-view suspending arms (57) horizontally extending above the conveying mechanism (1) are respectively arranged at the top of the two oblique-view station vertical supports (56), oblique-view camera racks (58) are adjustably mounted on the two oblique-view suspending arms (57) respectively, the first oblique-view camera group (31) and the second oblique-view camera group (32) are fixed on the corresponding oblique-view camera racks (58) respectively, the oblique-view suspending arms (57) can slide up and down along the oblique-view station vertical supports (56) to adjust the height, and the oblique-view camera racks (58) can slide back and forth along the oblique-view suspending arms (57) to adjust the horizontal position. The light source modules (4) are arranged on the straight-view camera racks (54) and the oblique-view camera racks (58) respectively.

6. A large tub top cover lock installation inspection apparatus according to claim 5, wherein The light source modules (4) comprise straight-view light source holes (41) penetrating through the straight-view camera racks (54) respectively and oblique-view light source holes (45) penetrating through the oblique-view camera racks (58) respectively, first annular light sources (42) coaxial with the straight-view light source holes (41) are arranged at the top of the straight-view camera racks (54), light-reflecting bowls (43) are arranged on the first annular light sources (42), the top center of the light-reflecting bowls (43) penetrates through accommodation holes (431), the lenses of the first straight-view camera (21) and the second straight-view camera (22) are respectively arranged in the corresponding accommodation holes (431), second annular light sources (46) coaxial with the oblique-view light source holes (45) are arranged at the bottom of the oblique-view camera racks (58), the first oblique-view camera group (31) and the second oblique-view camera group (32) are respectively and symmetrically arranged at the bottom of the oblique-view camera racks (58) on the left and right sides of the second annular light sources (46), and the lenses are arranged obliquely downward.

7. A large tub top cover lock installation inspection apparatus according to claim 6, characterized by First light-shielding covers (44) capable of covering the light-reflecting bowls (43) are respectively arranged at the top of the straight-view camera racks (54), and second light-shielding covers (47) capable of covering the oblique-view camera racks (58) are respectively arranged at the top of the oblique-view camera racks (58).

8. A bulk top cover lock detection apparatus according to claim 6, wherein Vertical rods (541) are respectively arranged on the top surface of the direct-view camera frame (54), and a camera support (542) capable of sliding up and down is arranged on the vertical rod (541), one end of the camera support (542) extends to the center of the accommodation hole (431), and the first direct-view camera (21) and the second direct-view camera (22) are respectively arranged at the end of the camera support (542).

9. A large tub top cover lock installation inspection apparatus according to claim 5, characterized by The inductive device (7) is arranged on the direct-view cantilever (53) and the oblique-view cantilever (57) respectively, which is used for detecting whether the conveying mechanism (1) correctly moves the bucket cover (10) to the predetermined position, and transmitting the detection data to the control host (6) to control the conveying mechanism (1) to perform the operation of stopping or continuing to run, thereby ensuring that the first direct-view camera (21) and the second direct-view camera (22) can shoot effective large-mouth and small-mouth locking top surface images of the bucket cover (10), and ensuring that the first oblique-view camera group (31) and the second oblique-view camera group (32) can shoot effective large-mouth and small-mouth locking edge-rolling images of the bucket cover (10).

10. A bulk container top lock detection apparatus according to any one of claims 1 to 9, wherein The control host (6) further comprises: an alarm module (61) for issuing an alarm signal when a defect is detected; a display module (62) for displaying the detection result and the defect image in real time.

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