An automatic oil bag pressurization leak detection and sorting integrated device and detection and sorting method

Abstract

The application discloses an automatic oil bag pressurization leak detection and sorting integrated equipment and method. The equipment comprises five modules of conveying, heavy pressure leak detection, visual detection, oil prevention and recovery, and sorting and storage. The conveying module is provided with a main conveying belt, an oil bag blocking cross beam, a pressure applying conveying belt, and a sorting conveying belt which can move left and right. The heavy pressure leak detection module makes the pressure applying conveying belt output a downward load through a constant pressure control system, simulates a warehouse extrusion working condition, and excites oil bag leakage. The visual detection module adopts 1-2 groups of dynamic visual cameras to collect work station images and identify oil leakage. The oil prevention and recovery module is used for preventing oil leakage at the detection work station from splashing and recovering. The sorting conveying belt moves left and right according to visual signals, and sends the oil bags into a qualified product storage box and a waste product recovery box respectively. The equipment can complete oil bag pressure bearing leak detection and automatic sorting on line, replaces manual work, prevents oil pollution from spreading and polluting, recovers oil, and has high detection efficiency. The sorting does not cause material jamming and cross pollution, and is suitable for a wide range of fields.

Description

Technical Field

[0001] This invention relates to the technical field of automated sealing test equipment for soft oil packaging bags, and is particularly applicable to an integrated production line equipment for online heavy pressure leak detection, leak visual recognition and automatic sorting of composite film oil bags for lubricating oil, edible oil, lubricating grease, etc. after filling. Specifically, it relates to an automated oil bag pressure leak detection and sorting integrated equipment and detection and sorting method. Background Technology

[0002] After soft oil bags are filled and sealed, defects such as incomplete seals, pinholes, and micro-cracks are prone to occur at the sealing welds and corner sealing areas. During storage, stacking, and logistics transportation, external pressure can cause oil leakage and spraying. Therefore, a pressure leak detection process must be completed before the oil bags are finished. Existing oil bag leak detection lines have the following deficiencies: 1. The testing conditions do not match the actual storage and transportation conditions, resulting in a high rate of missed detections. Traditional leak detection methods often use air inflation and water immersion to detect leaks, which only simulate internal oil pressure. When oil bags are stacked in storage, they are subjected to external pressure, and defects that only leak under external pressure cannot be detected. As a result, a large number of defective products enter the market, leading to a large number of after-sales oil leakage complaints.

[0003] 2. Oil leaks are not properly sealed and protected, resulting in severe oil pollution and wasted oil. When the oil bag leaks under pressure, the oil splashes everywhere without an isolation cover, contaminating the conveyor belt, frame, and workshop floor. There is no centralized oil recovery structure, and the oil is directly discarded. At the same time, the oil stains on the ground can easily cause operators to slip and fall, posing a safety hazard.

[0004] 3. Relying on manual visual inspection results in low efficiency and a high rate of misjudgments. Long-term human observation easily leads to visual fatigue, making it difficult to identify minute oil mists and trace amounts of oil seepage; the speed of manual sorting cannot match that of high-speed filling production lines, requiring multiple workers to be on duty continuously, resulting in high labor costs, and the lack of standardized inspection criteria.

[0005] 4. The sorting mechanism is slow to move, which can easily cause cross-contamination. Existing sorting systems mostly use side-push cylinders and tilting unloading structures, which have long strokes and slow response. During high-speed conveying, bags are prone to jamming and oil bags may fall out of place. Qualified oil bags and leaked waste products share the conveying area, and oil leakage from waste products can cause secondary contamination of intact products.

[0006] 5. Without a stratified oil collection and recovery structure, leaked oil cannot be reused. Dripping and splashing oil lacks tiered collection channels, resulting in scattered oil throughout the equipment that is difficult to clean, leading to significant raw material loss and increased production costs for the enterprise. Summary of the Invention

[0007] To address the shortcomings of existing technologies, such as distorted simulation of working conditions, oil spill and splash pollution, high misjudgment rate of manual inspection, sorting bottlenecks, and inability to recover oil, this invention provides an automated integrated equipment for pressurizing, leak-detecting, and sorting oil bags, along with a corresponding detection and sorting method. This invention simulates warehouse stacking conditions by applying a constant external pressure of 200kg using upper and lower conveyor belts. Combined with a sealed oil-proof shell, a multi-stage oil collection and recovery structure, dynamic visual automatic recognition, and a translational rapid sorting mechanism, it achieves fully automated processes including oil bag leveling and feeding, pressure-induced leakage detection, automatic visual oil detection, automatic sorting of qualified / waste products, and centralized recovery of leaked oil. This eliminates the need for manual supervision, reduces the leak detection rate, eliminates oil pollution in the workshop, and saves raw materials by recovering leaked grease.

[0008] To solve the above-mentioned technical problems, the technical solution of the present invention is: an automated oil bag pressurization, leak detection and sorting integrated equipment, including a conveying module, a heavy pressure leak detection module, a vision inspection module, an oil-proof recovery module, a sorting and storage module and a frame for installing each module; The conveying module includes a main conveyor belt, an oil bag blocking beam, a pressure conveyor belt, and a sorting conveyor belt; the oil bag blocking beam is installed above the feeding section of the main conveyor belt to flatten the oil bags falling from upstream; the pressure conveyor belt is installed above the main conveyor belt to form an oil bag squeezing and leak detection station with the main conveyor belt; the sorting conveyor belt can be horizontally moved left and right downstream of the pressure conveyor belt. The heavy-pressure leak detection module includes a constant pressure control system for the pressure conveyor belt, which controls the pressure conveyor belt to output a constant downward pressure load. The vision inspection module includes 1-2 sets of dynamic vision cameras. The lenses of the dynamic vision cameras are aimed at the extrusion leak detection station. The dynamic vision cameras are electrically connected to the industrial control vision recognition system to acquire station images, identify oil leaks, and output sorting control signals. The oil recovery module is used to prevent splashing of leaking oil at the detection station and to recover leaked oil. The sorting and storage module includes a qualified product storage box and a waste product recycling box; the qualified product storage box is located at the lower left of the sorting conveyor belt, and the waste product recycling box is located at the lower right of the sorting conveyor belt; when the dynamic vision camera detects oil bag leakage, the sorting conveyor belt moves to the right to make the oil bag fall into the waste product recycling box; when no oil leakage is detected, the sorting conveyor belt moves to the left and the oil bag falls into the qualified product storage box.

[0009] In the aforementioned automated oil bag pressurization, leak detection, and sorting integrated equipment, the oil-proof recovery module includes an oil-proof cover, a tabletop oil receiving tray, a return oil receiving tray, and a ground oil receiving tray; the oil-proof cover is a fully sealed enclosure of the extrusion and leak detection station; the tabletop oil receiving tray is laid on the main conveyor belt frame table, the return oil receiving tray is arranged at the bottom of the sorting conveyor belt, and the ground oil receiving tray is laid at the bottom of the entire machine frame; the tabletop oil receiving tray and the return oil receiving tray are both connected to the ground oil receiving tray for drainage.

[0010] In the aforementioned automated oil bag pressurization, leak detection, and sorting integrated equipment, the dynamic vision camera body can be optionally arranged outside the oil-proof cover, with only the lens extending into the oil-proof cover; the front end of the lens is provided with a detachable transparent oil-proof protective lens.

[0011] In the aforementioned automated oil bag pressurization leak detection and sorting integrated equipment, the number of dynamic vision cameras is one or two sets. The dynamic vision cameras identify oil leakage traces at the extrusion station through image color difference and oil mist feature algorithms.

[0012] In the aforementioned automated oil bag pressurization leak detection and sorting integrated equipment, the oil-proof cover is a transparent sealed shell that wraps around the compression leak detection station formed by the pressurized conveyor belt and the main conveyor belt, preventing leaked oil from splashing and spreading outwards.

[0013] In the aforementioned automated oil bag pressurization, leak detection, and sorting integrated equipment, both the table oil receiving tray and the return oil receiving tray are equipped with guide slopes, so that all dripping oil flows along the slopes to the ground oil receiving tray for centralized collection and reuse.

[0014] In the aforementioned automated oil bag pressurization, leak detection, and sorting integrated equipment, the main conveyor belt in the conveying module is connected to the frame via a shaft frame, and the pressure conveyor belt is axially movable between the shaft frame and the frame. The constant pressure control system is installed on the frame and driven by the shaft frame connected to the pressure conveyor belt to provide pressure. The sorting conveyor belt is also rotatably connected via a shaft frame and is fixedly connected to the frame via its own shaft frame. The main conveyor belt, pressure conveyor belt, and sorting conveyor belt are all driven by motor power.

[0015] In the aforementioned automated oil bag pressurization, leak detection, and sorting integrated equipment, the sorting conveyor belt is an integral horizontal switching unloading channel with no side pushing or overturning unloading structure, ensuring smooth oil bag conveying and unloading without jamming or overturning.

[0016] In the aforementioned automated oil bag pressurization, leak detection, and sorting integrated equipment, the main conveyor belt and the pressurizing conveyor belt are respectively equipped with support plates to maintain support and pressure. The pressurizing conveyor belt can provide a constant pressure of 200kg to uniformly squeeze the oil bag.

[0017] An automated oil bag pressurization and leak detection sorting method, based on the aforementioned integrated equipment, includes the following steps: S1. Feeding and leveling: The filled oil bags fall from the upstream equipment to the main conveyor belt. The oil bag blocking beam limits and flattens the oil bags, and the oil bags are conveyed forward in a single layer. S2, heavy pressure triggers leakage: the main conveyor belt transports the oil bag to the clamping station below the pressure conveyor belt. The pressure conveyor belt outputs a constant pressure of 200kg downwards to evenly squeeze the oil bag. If there is a defect in the seal, the oil bag will leak or spray oil outwards under pressure. S3. Dynamic visual oil leakage recognition: The dynamic visual camera acquires images of the extrusion station in real time, and the visual recognition system identifies oil mist and flowing oil traces in the image; unidentified oil traces are judged as qualified products and a left-shift sorting signal is output; oil leakage traces are identified as unqualified products and a right-shift sorting signal is output. S4. Automatic lateral sorting and unloading: When a leftward signal is received, the sorting conveyor belt moves to the left and the oil bag falls into the qualified product storage box; when a rightward signal is received, the sorting conveyor belt moves to the right and the oil bag falls into the waste recycling box for isolation. S5. Graded recovery of leaked oil: Splashed oil at the extrusion station is blocked by the oil-proof cover, and dripping oil flows through the oil collection tray on the table and the return oil collection tray to the ground oil collection tray for centralized filtration and recovery; Steps S1 to S5 are executed in a cycle to achieve continuous oil bag leak detection and sorting on the production line.

[0018] In the aforementioned automated oil bag pressurization leak detection and sorting method, the dynamic vision camera outputs a sorting displacement control signal within 0.2 seconds after completing the oil leak identification, and the sorting conveyor belt quickly completes the translation switch.

[0019] The beneficial effects of this invention are: 1. Innovative Working Condition Simulation: Utilizing upper and lower conveyor belts to apply a constant external pressure of 200kg, this system accurately simulates the real stress conditions of stacked oil bags during storage. It can detect sealing defects that only leak under external pressure, solving the industry pain point of high miss rates in traditional internal pressure leak detection. Highly accurate detection with an extremely low miss rate: Simulating real-world storage and transportation external pressure conditions, it can detect external pressure leaks that traditional leak detection equipment cannot identify; automatic visual recognition eliminates human fatigue errors, significantly reducing the outflow of leaking and defective products after sales.

[0020] 2. Innovative Integrated Structure of Enclosed Oil Protection + Multi-stage Oil Recovery: The integrated oil-proof enclosure completely isolates the extrusion station, preventing oil splashing; the three-tiered oil collection trays on the worktable, return oil, and floor guide and converge the leaked oil, centrally collecting and reusing it, eliminating oil pollution and raw material waste in the workshop, and avoiding the safety hazards of slippery floors. Clean workshop, saving production raw materials: The fully enclosed oil-proof enclosure prevents oil diffusion, and the multi-stage oil collection trays centrally collect leaked grease. The oil can be filtered and reused, reducing raw material loss and eliminating the safety hazards of oil pollution in the workshop.

[0021] 3. Automated visual recognition replaces manual inspection: Workstations are equipped with dynamic vision cameras to identify trace amounts of oil mist and oil stains in real time. The judgment criteria are standardized, and the recognition speed matches high-speed production lines, eliminating the need for continuous manual observation, reducing labor costs, and eliminating missed or incorrect judgments caused by human visual fatigue. Highly automated, saving labor costs: Visual recognition + electric translation sorting ensures unattended operation throughout the entire process. High-speed production lines do not require multiple workers for inspection and sorting, significantly reducing labor expenses in the long term.

[0022] 4. Innovative Horizontal Conveyor Sorting Mechanism: The sorting conveyor belt moves horizontally left and right to switch the feeding channel. Compared with side-pushing and tipping sorting mechanisms, it is simpler to operate, has a faster response speed, and eliminates bag jamming and oil bag tipping. Qualified products and waste products are stored separately in separate bins, completely avoiding cross-contamination of intact oil bags by leaked oil. Stable sorting with no cross-contamination: The horizontal conveyor belt sorting action is gentle and does not jam; qualified and waste products are stored separately, and leaked oil will not contaminate intact oil bags, improving the appearance quality of the finished products.

[0023] 5. Integrated design throughout the entire process: The entire process, from feeding and leveling to heavy-pressure leak detection, visual recognition, automatic sorting, and oil recovery, is integrated into a single unit. It has a small overall footprint and can be directly connected to existing filling lines. The modular structure facilitates installation, maintenance, and production line modification. High versatility and adaptability: Compatible with 1L to 5L soft oil bag filling lines. The modular structure allows for easy retrofitting of existing production lines and simplifies maintenance. Attached Figure Description

[0024] Figure 1 This is a perspective view of the present invention (excluding the oil-proof cover); Figure 2 This is a perspective view of the present invention (including an oil-proof cover). Detailed Implementation

[0025] The invention will be further described with reference to the accompanying drawings.

[0026] Please see Figure 1 , Figure 2 This invention provides an automated oil bag pressurization, leak detection and sorting integrated equipment. The whole machine includes a conveying module, a heavy pressure leak detection module, a vision inspection module, an oil-proof recovery module, a sorting and storage module and a frame 1 for installing each module. Conveying module: includes main conveyor belt 2, oil bag blocking beam 3, pressure conveyor belt 4, and sorting conveyor belt 5; oil bag blocking beam 3 is installed above the feeding section of main conveyor belt 2 to flatten the oil bags falling from upstream; pressure conveyor belt 4 is set above main conveyor belt 2 to form an oil bag squeezing and leak detection station with main conveyor belt 2; sorting conveyor belt 5 can be arranged horizontally and left and right downstream of pressure conveyor belt 4 to receive oil bags after squeezing and detection.

[0027] The main conveyor belt 2 is connected to the frame 1 via a shaft bracket. The pressure conveyor belt 4 is axially connected to the frame 1 via a shaft bracket, and the sorting conveyor belt 5 is also rotatably connected via a shaft bracket and fixedly connected to the frame 1 via its own shaft bracket. The main conveyor belt 2, pressure conveyor belt 4, and sorting conveyor belt 5 are all driven by electric motors. The rotatable connection of the main conveyor belt 2, pressure conveyor belt 4, and sorting conveyor belt 5 is a common technique in the mechanical field and will not be elaborated further here. Support plates are respectively installed inside the main conveyor belt 2 and pressure conveyor belt 4 to maintain support and withstand pressure between them.

[0028] Heavy pressure leak detection module: includes a constant pressure control system for the pressure conveyor belt 4. The constant pressure control system is an existing mechanism, directly installed on the frame 1 (corresponding to the position above the pressure conveyor belt 4). The constant pressure control system is driven by the shaft frame of the installed pressure conveyor belt 4 to provide pressure, which is used to control the pressure conveyor belt 4 to stably output and provide a constant pressure of 200kg to uniformly squeeze the oil bag. Of course, the pressure set by the constant pressure control system can also be adjusted as needed.

[0029] Visual inspection module: includes 1 to 2 sets of dynamic vision cameras 6. The number of dynamic vision cameras 6 is 1 or 2. The dynamic vision cameras 6 identify oil leakage traces at the extrusion station through image color difference and oil mist feature algorithms. The lens of the dynamic vision camera 6 is aimed at the extrusion leak detection station. The dynamic vision camera 6 is electrically connected to the industrial control vision recognition system to acquire station images and identify oil leaks, and output left and right translation control signals to the sorting conveyor belt.

[0030] Oil-proof recovery module: includes an oil-proof cover 9, a tabletop oil receiving tray 10, a return oil receiving tray 11, and a ground oil receiving tray 12; the oil-proof cover 9 completely seals and covers the extrusion and leak detection station, preventing leaked oil from splashing and spreading outward; a dynamic vision camera 6 is suspended inside the oil-proof cover 9, with its lens vertically aligned with the extrusion station formed by the pressure conveyor belt and the main conveyor belt; the tabletop oil receiving tray 10 is laid on the tabletop of the main conveyor belt 2 frame 1 to receive oil dripping from the station; the return oil receiving tray 11 is arranged at the bottom of the sorting conveyor belt 5 to collect leaked grease from the sorting area; the ground oil receiving tray 12 is laid at the bottom of the machine frame 1, and the tabletop oil receiving tray 10 and the return oil receiving tray 11 are both connected to the ground oil receiving tray 12 for unified recovery of all leaked oil.

[0031] The sorting and storage module includes a qualified product storage box 7 and a waste product recycling box 8. The qualified product storage box 7 is located on the lower left of the sorting conveyor belt 5, and the waste product recycling box 8 is located on the lower right of the sorting conveyor belt 5. When the dynamic vision camera 6 detects oil leakage and the vision system determines that the product is unqualified, the discharge end of the sorting conveyor belt 5 moves to the right to make the oil bag fall into the waste product recycling box 8. When the dynamic vision camera 6 does not detect oil leakage, the vision system determines that the oil bag is qualified, the discharge end of the sorting conveyor belt 5 moves to the left, and the oil bag falls into the qualified product storage box 7.

[0032] Furthermore, the dynamic vision camera 6 can be positioned outside the oil-proof cover 9. A vertical mounting hole is provided at the top of the oil-proof cover, through which the camera lens extends downwards into the cover. The entire camera body is placed outside the oil-proof cover. A detachable transparent oil-proof protective lens (using existing lens technology) is provided at the front of the lens. This lens isolates splashed oil, preventing direct oil adhesion to the camera lens. The protective lens can be quickly removed, wiped, and replaced, ensuring image clarity. Even after 72 hours of continuous production, only a small amount of oil mist adheres to the lens, and a single wipe per day is sufficient to maintain high-definition imaging without complete lens obstruction or identification failure. Alternatively, an inclined oil-blocking guide plate can be installed inside the oil-proof cover, directly opposite the area below the lens at the extrusion station. The sprayed oil is diverted laterally by the guide plate, significantly reducing the amount of oil splashing upwards onto the lens's protective lens, thus reducing the probability of oil contamination at the source. Oil dripping from the guide plate falls directly into the oil collection tray on the table for recycling. Since a single wipe per day is sufficient to maintain high-definition imaging, the oil-blocking guide plate is not shown in the attached drawings.

[0033] Furthermore, the oil-proof cover 9 is a transparent sealed shell that wraps around the pressure conveyor belt 4 and the main conveyor belt 2 to form a squeeze leak detection station, preventing leaked oil from splashing and spreading outwards, and also facilitating manual observation.

[0034] Furthermore, to better facilitate the collection of leaked oil, both the platform oil receiving tray 10 and the return oil receiving tray 11 are equipped with guide slopes, so that all dripping oil flows along the slopes to the ground oil receiving tray 12 for centralized collection and reuse.

[0035] Furthermore, the sorting conveyor belt 5 is an integral translational switching unloading channel, which is fixed to the frame through its own installed shafts. It is designed with a non-side-push and non-tumbling unloading structure, so that the oil bag conveying and unloading is smooth without jamming or side tipping.

[0036] An automated oil bag pressurization and leak detection sorting method, implemented based on the aforementioned integrated equipment, includes the following steps: S1. Feeding and leveling: The filled oil bags fall from the upstream equipment to the main conveyor belt 2. The oil bag blocking beam 3 limits and flattens the oil bags, and the oil bags are conveyed forward in a single layer. S2, heavy pressure triggers leakage: the main conveyor belt 2 transports the oil bag to the clamping station below the pressure conveyor belt 4. The pressure conveyor belt 4 outputs a constant pressure of 200kg downwards to uniformly squeeze the oil bag. If there are defects in the seal (e.g., pinholes, false seals, cracks, etc.), the oil bag will leak or spray oil outwards under pressure. S3, Dynamic Visual Oil Leakage Detection: The dynamic visual camera 6 acquires images of the extrusion station in real time, and the visual recognition system identifies oil mist and flowing oil traces in the image; unidentified oil traces are judged as qualified products and a left-shift sorting signal is output; leaking oil traces are identified as unqualified products and a right-shift sorting signal is output. S4. Automatic lateral sorting and unloading: When a leftward signal is received, the sorting conveyor belt 5 moves to the left and the oil bag falls into the qualified product storage box 7; when a rightward signal is received, the sorting conveyor belt 5 moves to the right and the oil bag falls into the waste recycling box for isolation. S5. Graded recovery of leaked oil: The splashed oil at the extrusion station is blocked by the oil-proof cover 9, and the dripping oil flows through the oil receiving tray 10 on the table and the return oil receiving tray 11 to the ground oil receiving tray 12 for centralized filtration and recovery; the steps S1 to S5 are repeated to realize continuous oil bag leak detection and sorting on the production line.

[0037] Furthermore, after the dynamic vision camera 6 completes the oil leak detection, it outputs a sorting displacement control signal within 0.2 seconds, and the sorting conveyor belt 5 quickly completes the translational switching. To facilitate understanding, the following specific embodiments are provided for further explanation: Example 1: High-speed filling line equipment for 1L lubricating oil composite oil bags

[0038] The equipment is compatible with a 120 bags / minute filling production line. The pressure conveyor belt is set to a constant pressure of 200kg. Two sets of dynamic vision cameras are installed inside the oil-proof enclosure, with a frame rate of 30 frames / second. Oil bags are fed from the filling machine onto the main conveyor belt. The oil bag blocking beam automatically flattens stacked and tilted oil bags. The oil bags enter the clamping area of ​​the upper and lower conveyor belts, where 200kg of pressure evenly squeezes the bag body, causing lubricating oil to spray out from any micro-seam defects in the seal. The dynamic vision cameras capture minute amounts of oil mist in real time, completing oil leakage detection and outputting a sorting signal within 0.2 seconds. A non-compliant signal triggers the sorting conveyor belt to move to the right, and the leaking oil bag falls into the waste recycling bin. If there is no leakage, the sorting conveyor belt remains on the left, and the oil bag falls into the qualified product storage bin. Leaking lubricating oil is sealed by the transparent acrylic oil-proof enclosure. Dripping grease flows through the table oil collection tray and return oil collection tray to the bottom ground oil collection tray, where it is filtered and reused. The equipment can operate continuously for 72 hours. It operates stably for hours without bag jamming or oil spillage, with a missed detection rate of less than 0.05%, replacing 3 manual inspection and sorting workers, and achieving an overall oil recovery rate of over 98%. Example 2: Adaptation solution for small and medium-sized production lines using 5L edible oil soft bags

[0039] The pressure conveyor belt maintains a constant pressure of 200kg, and the oil-proof cover adopts a transparent and visible structure, requiring only one set of dynamic vision cameras to reduce equipment costs; the sorting conveyor belt has a shortened translational stroke and a signal response time of 0.1s; each oil receiving tray is equipped with a guide ramp for centralized recycling, refining, and reuse of edible oil; qualified and waste product storage boxes are physically separated to prevent waste oil from contaminating intact oil bags, making it suitable for low-cost retrofitting of existing filling lines in small and medium-sized edible oil processing plants.

[0040] The foregoing has provided a detailed description of a chip removal device for an internal support fixture of a CNC lathe provided by an embodiment of the present invention. Specific examples have been used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only for the purpose of helping to understand the technical solution disclosed in the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. An automated integrated equipment for pressurizing, leak-detecting, and sorting oil bags, characterized in that: It includes a conveying module, a heavy-duty leak detection module, a vision inspection module, an oil-proof recovery module, a sorting and storage module, and a frame for installing each module (1). The conveying module includes a main conveyor belt (2), an oil bag blocking beam (3), a pressure conveyor belt (4), and a sorting conveyor belt (5); the oil bag blocking beam (3) is installed above the feeding section of the main conveyor belt (2) to flatten the oil bags falling from upstream; the pressure conveyor belt (4) is installed above the main conveyor belt (2) to form an oil bag squeezing and leak detection station with the main conveyor belt (2); the sorting conveyor belt (5) can be horizontally moved left and right downstream of the pressure conveyor belt (4); The heavy-pressure leak detection module includes a constant pressure control system for the pressure conveyor belt (4), which is used to control the pressure conveyor belt (4) to output a constant downward pressure load stably; the vision detection module includes 1 to 2 sets of dynamic vision cameras (6), the lenses of the dynamic vision cameras (6) are aimed at the extrusion leak detection station, the dynamic vision cameras (6) are electrically connected to the industrial control vision recognition system, which is used to collect station images and identify oil leaks, and output sorting control signals; the oil recovery module is used to prevent the splashing of leaking oil at the detection station and to recover the leaking oil. The sorting and storage module includes a qualified product storage box (7) and a waste recycling box (8); the qualified product storage box (7) is located on the lower left of the sorting conveyor belt (5), and the waste recycling box (8) is located on the lower right of the sorting conveyor belt (5); when the dynamic vision camera (6) detects oil leakage, the sorting conveyor belt (5) moves to the right so that the oil bag falls into the waste recycling box (8); when no oil leakage is detected, the sorting conveyor belt (5) moves to the left so that the oil bag falls into the qualified product storage box (7).

2. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 1, characterized in that: The oil-proof recovery module includes an oil-proof cover (9), a tabletop oil receiving tray (10), a return oil receiving tray (11), and a ground oil receiving tray (12). The oil-proof cover (9) is a sealed enclosure for the extrusion and leak detection station, and the dynamic vision camera (6) is suspended inside the oil-proof cover (9). The tabletop oil receiving tray (10) is laid on the tabletop of the main conveyor belt (2) frame (1), the return oil receiving tray (11) is arranged at the bottom of the sorting conveyor belt (5), and the ground oil receiving tray (12) is laid at the bottom of the whole machine frame (1). The tabletop oil receiving tray (10) and the return oil receiving tray (11) are both connected to the ground oil receiving tray (12).

3. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 2, characterized in that: The body of the dynamic vision camera (6) can be arranged outside the oil-proof cover (9), with only the lens extending into the oil-proof cover (9); the front end of the lens is provided with a detachable transparent oil-proof protective lens.

4. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 3, characterized in that: The number of dynamic vision cameras (6) is 1 or 2. The dynamic vision cameras (6) identify the oil leakage traces at the extrusion station through image color difference and oil mist feature algorithms.

5. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 1, characterized in that: The oil-proof cover (9) is a transparent sealed shell that wraps around the pressure conveyor belt (4) and the main conveyor belt (2) to form a squeeze leak detection station, preventing leaked oil from splashing and spreading outward.

6. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 1, characterized in that: Both the tabletop oil receiving tray (10) and the return oil receiving tray (11) are equipped with guide slopes. All dripping oil flows along the slopes to the ground oil receiving tray (12) for centralized collection and reuse.

7. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 1, characterized in that: In the conveying module, the main conveyor belt (2) is connected to the frame (1) through a shaft frame, and the pressure conveyor belt (4) is axially movable between the shaft frame and the frame (1). The constant pressure control system is installed on the frame (1) and connected to the shaft frame (15) of the pressure conveyor belt (4) to provide pressure. The sorting conveyor belt (5) is also rotatably connected through a shaft frame and is fixedly connected to the frame (1) through its own shaft frame. The main conveyor belt (2), the pressure conveyor belt (4), and the sorting conveyor belt (5) are driven by the power of a motor.

8. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 7, characterized in that: The sorting conveyor belt (5) is an integral horizontal switching unloading channel with no side pushing or overturning unloading structure. The oil bag conveying unloading is stable without jamming or overturning.

9. The automated oil bag pressurization, leak detection, and sorting integrated equipment according to claim 8, characterized in that: The main conveyor belt (2) and the pressure conveyor belt (4) are respectively provided with support plates to maintain the support and pressure. The pressure conveyor belt (4) can provide a constant pressure of 200kg to uniformly squeeze the oil bag.

10. An automated oil bag pressure leak detection and sorting method based on the equipment described in any one of claims 1 to 9, characterized in that: It includes the following steps: S1, Feeding and Leveling: The filled oil bag falls from the upstream equipment to the main conveyor belt (2), the oil bag blocking beam (3) limits and flattens the oil bag, and the oil bag is conveyed forward in a single layer; S2, heavy pressure triggers leakage: the main conveyor belt (2) transports the oil bag to the clamping station below the pressure conveyor belt (4), and the pressure conveyor belt (4) outputs a constant pressure of 200kg downwards to uniformly squeeze the oil bag. If there is a defect in the seal, the oil bag will leak oil and spray oil outwards under pressure. S3, Dynamic visual oil leakage identification: The dynamic visual camera (6) collects images of the extrusion station in real time, and the visual recognition system identifies oil mist and flowing oil traces in the image; if no oil traces are identified, the product is deemed qualified and a left-shift sorting signal is output; if oil leakage is identified, the product is deemed unqualified and a right-shift sorting signal is output. S4. Automatic sorting and unloading by translation: When the left shift signal is received, the sorting conveyor belt (5) shifts to the left and the oil bag falls into the qualified product storage box (7); when the right shift signal is received, the sorting conveyor belt (5) shifts to the right and the oil bag falls into the waste recycling box (8) for isolation. S5. Graded recovery of leaked oil: The splashed oil at the extrusion station is blocked by the oil shield (9), and the dripping oil flows through the oil receiving tray (10) on the table and the return oil receiving tray (11) to the ground oil receiving tray (12) for centralized filtration and recovery; Steps S1 to S5 are executed in a cycle to realize continuous oil bag leak detection and sorting on the production line.

11. The automated oil bag pressurization and leak detection sorting method according to claim 10, characterized in that: After the dynamic vision camera (6) completes the oil leak identification, it outputs the sorting displacement control signal within 0.2s, and the sorting conveyor belt (5) quickly completes the translation switch.

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