Automatic stereoscopic warehouse for carton packaging and conveying

Abstract

The invention provides an automatic stereoscopic warehouse for carton packaging and conveying, and relates to the technical field of warehousing, the automatic stereoscopic warehouse comprises a warehouse body, laminates, a feeding driving mechanism, an adjustable feeding frame and a damp-proof mechanism, the warehouse body is provided with multiple sets of lifting driving mechanisms, and the multiple sets of lifting driving mechanisms control the multiple sets of laminates to ascend and descend in the warehouse body; a feeding driving mechanism is arranged below the lowest group of laminates, an adjustable feeding frame is arranged on the feeding driving mechanism, moisture-proof mechanisms are arranged below the interior of the warehouse body on the two sides of the feeding driving mechanism, the digital twin warehouse system is used for monitoring movement equipment of a physical warehouse in real time, and the health degree of the movement equipment is established through a machine learning algorithm for evaluation. And then controlling the dynamic switching use of the plurality of physical warehouses according to the evaluation result. According to the digital twin warehouse system, through the independent and adjustable layer plate lifting structure, the digital twin warehouse system can be directly in butt joint with output ends of production lines with different heights, and the digital twin warehouse system can upgrade fixed period maintenance to predictive maintenance based on the real state of equipment.

Description

Technical Field

[0001] This invention relates to the field of warehousing technology, and more particularly to an automated three-dimensional warehouse for conveying cardboard packaging. Background Technology

[0002] Automated storage and retrieval systems (AS / RS) are a new concept in logistics warehousing. Utilizing AS / RS equipment enables the rationalization of warehouse heights, automation of storage and retrieval, and simplification of operations.

[0003] Existing automated storage and retrieval systems (AS / RS) suffer from several shortcomings in adaptability and practicality when applied to cardboard packaging and warehousing scenarios: First, shelf heights are mostly fixed, unable to be flexibly adjusted according to the cardboard conveying needs of production lines with different heights. This necessitates manual assistance for transfer between the production line and the warehouse, resulting in low warehousing efficiency and the need for palletizing systems. Second, cardboard boxes are difficult to arrange in a standardized and orderly manner after entering the warehouse, relying on manual sorting, which is not only labor-intensive but also prone to storage disorder and wasted space. Third, the moisture-absorbing properties of cardboard boxes are not considered, and the warehouse lacks an effective humidity control mechanism. When the ambient humidity is high, cardboard boxes are prone to moisture absorption, deformation, and reduced strength, even affecting the quality of the contents. Fourth, the shelf spacing cannot be dynamically adjusted according to the stacking height of cardboard boxes, leading to unreasonable utilization of upper-level space and difficulty in adapting to the storage needs of cardboard boxes of different sizes, thus limiting the space utilization rate of the AS / RS. Fifth, existing AS / RS are prone to disruption of operation due to sudden failures of moving equipment within the warehouse, causing production stoppages. Therefore, this invention proposes an automated storage and retrieval system (AS / RS) for cardboard packaging and conveying to solve the above problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes an automated three-dimensional warehouse for conveying cardboard packaging. By creating movable slots on the inner side walls of the equipment columns within the warehouse structure and equipping these slots with hydraulic cylinders, sliders at the four corners of the shelves can slide along these slots. The hydraulic cylinders precisely control the lifting height of each shelf group. This independent and adjustable shelf lifting structure can directly connect to the output ends of production lines at different heights, eliminating the need for manual transfer of cardboard packaging and completely solving the problem of low efficiency in connecting the production line and the warehouse, significantly improving the continuity of warehousing.

[0005] To achieve the objectives of this invention, the invention is implemented through the following technical solutions: An automated three-dimensional warehouse for carton packaging conveying includes a physical warehouse and a digital twin warehouse system. The physical warehouse includes a warehouse body 1, shelves 2, a feeding drive mechanism, an adjustable feeding rack 3, and a moisture-proof mechanism. The warehouse body 1 contains multiple sets of shelves 2. Multiple lifting drive mechanisms are installed on the warehouse body 1, each controlling the lifting and lowering of the shelves 2 within the warehouse body 1. A feeding drive mechanism is located below the lowest set of shelves 2 and is assembled to the lower interior of the warehouse body 1. An adjustable feeding rack 3 is installed on the feeding drive mechanism. Each set of shelves 2 has a moving groove 4. Sinking grooves 5 are located on the shelves 2 on both sides of the moving groove 4. Multiple sets of feeding guide rollers 6 are rotatably installed inside the sinking grooves 5, with the tops of the feeding guide rollers 6 extending beyond the top of the sinking grooves 5. The moisture-proof mechanism is located on the lower interior of the warehouse body on both sides of the feeding drive mechanism. The digital twin warehouse system is used to monitor the movement of equipment in physical warehouses in real time, assess the health of the equipment through machine learning algorithms, and then control the dynamic switching of multiple physical warehouses based on the assessment results.

[0006] Further improvements are made in that: the moisture-proof mechanism is provided in multiple sets, the moisture-proof mechanism includes a dehumidifying fan 7, an air inlet pipe 8 and an air guide pipe 9, the suction end of the dehumidifying fan 7 is provided with an air inlet pipe 8, the output end of the dehumidifying fan 7 is provided with an air guide pipe 9, the sink trough 5 is provided with multiple air guide ports 10, and the multiple air guide ports 10 on the multiple sets of the shelf 2 are staggered with each other; A further improvement is made in that: the digital twin warehouse system includes a digital twin model, a multi-source data acquisition unit, a predictive maintenance algorithm module, and a dynamic scheduling optimization module. The digital twin model constructs a three-dimensional digital model that completely corresponds to the physical warehouse. The multi-source data acquisition unit sets monitoring elements on the moving equipment in the physical warehouse and collects the operating parameters of the moving equipment fed back by the monitoring elements in real time. The predictive maintenance algorithm module establishes a health assessment model of the moving equipment based on the collected operating data through machine learning algorithms. The dynamic scheduling optimization module is used to control the dynamic switching of multiple physical warehouses according to the assessment results of the health assessment model.

[0007] Further improvements include: the storage body 1 includes a storage base plate 101, equipment storage columns 102, and supporting storage columns 103. The storage base plate 101 is topped with equipment storage columns 102 and supporting storage columns 103. Multiple sets of equipment storage columns 102 and supporting storage columns 103 are arranged in a rectangular array. Movable grooves 104 are provided on the inner sidewalls of the equipment storage columns 102. The four corners of the multiple sets of shelves 2 are slidably connected to the movable grooves 104 on the corresponding positions of the equipment storage columns 102 via sliders 11. The lifting drive mechanism is a hydraulic cylinder 12, which is installed inside the movable groove 104. The output end of the hydraulic cylinder 12 is connected to the top of the slider 11. A further improvement is that: a baffle 18 is provided at the tail end of the storage body 1, the baffle 18 is installed with two equipment storage columns 102 located at the tail end of the storage body 1, and multiple sets of limiting beams 19 are provided between the equipment storage columns 102 and the supporting storage columns 103 and between adjacent supporting storage columns 103. The multiple sets of limiting beams 19, multiple sets of equipment storage columns 102 and multiple sets of supporting storage columns 103 on the same side are fixedly connected.

[0008] A further improvement is that the feeding drive mechanism includes an end assembly seat 13, a linear screw 14, a guide rod 15, and a movable seat 16. The top two ends of the bottom plate 101 are provided with end assembly seats 13, and a linear screw 14 is rotatably arranged between the two end assembly seats 13. The linear screw 14 is driven by a motor 17. A guide rod 15 is provided between the two end assembly seats 13 on both sides of the linear screw 14. The movable seat 16 is slidably connected to the two guide rods 15, and the movable seat 16 is threadedly connected to the linear screw 14.

[0009] A further improvement is that the adjustable feeding rack 3 includes an adjusting cylinder 301 and a feeding plate 302. Both the adjusting cylinder 301 and the feeding plate 302 are provided in two sets. Both sets of the adjusting cylinder 301 are located on the top of the movable seat 16. The bottom of the feeding plate 302 is provided with a slot 303. The output end of the adjusting cylinder 301 is connected to the bottom of the slot 303. The movable slot 4 is provided in two sets, and the positions of the two movable slots 4 are adapted to the two feeding plates 302.

[0010] A further improvement is that, when the multi-source data acquisition unit sets monitoring elements on the moving equipment in the physical warehouse and collects the operating parameters of the moving equipment fed back by the monitoring elements in real time, it includes setting a first pressure sensor on the hydraulic cylinder 12, setting a current sensor on the motor 17 that drives the linear screw 14, and setting a second pressure sensor on the regulating cylinder 301.

[0011] Further improvements are made in that the predictive maintenance algorithm module consists of a sequence degradation evaluation model based on LSTM-Attention and a remaining useful life prediction model based on deep survival analysis. The sequence degradation evaluation model based on LSTM-Attention is used to encode the real-time operating sequence of the monitored motion equipment in the physical warehouse and output a dynamic health index HI. The remaining useful life prediction model based on deep survival analysis is used to determine whether the monitored motion equipment in the physical warehouse is currently abnormal and to predict the time when the monitored motion equipment in the physical warehouse will fail, providing a time window for planned maintenance and dynamic scheduling.

[0012] A further improvement is that the operating parameters of the moving equipment in the physical warehouse collected in real time by the multi-source data acquisition unit, the health index HI output by the sequence degradation assessment model based on LSTM-Attention, and the results output by the remaining service life prediction model based on deep survival analysis are all automatically updated into the digital twin model.

[0013] The beneficial effects of this invention are as follows: By opening movable grooves on the inner sidewalls of the equipment column of the warehouse and assembling hydraulic cylinders in the movable grooves, the sliders at the four corners of the shelves can slide along the movable grooves, and the lifting height of each set of shelves is precisely controlled by the hydraulic cylinders. This independent and adjustable shelf lifting structure can directly connect with the output end of the production line at different heights, eliminating the need for manual transfer of cardboard packaging, completely solving the problem of low efficiency in the connection between the production line and the warehouse, and greatly improving the continuity of warehousing.

[0014] The automated storage and retrieval system of this invention is equipped with a feeding drive mechanism consisting of an end assembly seat, a linear screw, a guide rod, and a moving seat. Combined with an adjustable feeding rack containing a regulating cylinder and a feeding plate, when the linear screw is driven by a motor, the moving seat can move smoothly along the guide rod. The regulating cylinder can adjust the position of the feeding plate according to the shelf height, ensuring the feeding plate is precisely embedded in the moving groove of the shelf. Simultaneously, the feeding guide rollers in the upper and lower grooves of the shelf reduce friction between the cartons and the shelf, facilitating smooth carton transport. The entire process achieves automated movement and orderly arrangement of cartons from entry into the warehouse to the shelf, eliminating the need for manual handling. This reduces labor intensity, avoids wasted storage space, and makes the cartons on each shelf more neatly arranged, improving space utilization.

[0015] The automated storage and retrieval system of this invention features multiple moisture-proof mechanisms on both sides of the feeding drive mechanism. Each moisture-proof mechanism consists of a dehumidifier, an air inlet pipe, a guide pipe, and an air vent in the sink. The dehumidifier draws in humid air from the warehouse through the air inlet pipe and delivers dry airflow to each air vent through the guide pipe. Furthermore, the air vents on the multiple shelves are staggered to ensure that the dry airflow can evenly cover the sink area of ​​all shelves, avoiding excessively high local humidity. This solves the problem of ineffective humidity control in traditional warehouses, and can stably control the humidity in the warehouse within a suitable range for cardboard box storage, preventing cardboard boxes from becoming damp, deforming, and losing strength, while also protecting the items loaded inside the cardboard boxes from moisture.

[0016] The automated storage and retrieval system of this invention uses multiple independent hydraulic cylinders to drive the lifting and lowering of the shelves. The spacing between any two shelves can be flexibly adjusted according to the stacking height of the cartons. It can meet the storage needs of a small number of single-layer, high-stacked cartons, as well as the dense storage of multiple layers of low-stacked cartons, making full use of the high-level space of the warehouse. Multiple sets of limiting beams are set between the equipment warehouse columns and the supporting warehouse columns, as well as between adjacent supporting warehouse columns. The limiting beams on the same side are fixedly connected to the warehouse columns, which greatly enhances the overall structural stability of the warehouse and can withstand the weight load of multiple layers of cartons. It can prevent the warehouse from deforming due to storage pressure. The baffle at the rear end of the warehouse can prevent cartons from falling due to excessive distance during transportation, further ensuring the safety of the storage process. The digital twin warehouse system of this invention can upgrade fixed-cycle maintenance to predictive maintenance based on the actual status of equipment, significantly reducing maintenance costs and unexpected downtime, minimizing the impact of local equipment performance degradation, and ensuring the continuity and high availability of overall logistics operations. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the library structure of the present invention; Figure 3 This is an exploded view of the structure of the present invention; Figure 4 This is a schematic diagram of the air guide structure of the present invention.

[0018] The components include: 1. Warehouse body; 101. Warehouse bottom plate; 102. Equipment warehouse column; 103. Supporting warehouse column; 104. Movable trough; 2. Shelf; 3. Adjustable feeding rack; 301. Adjusting cylinder; 302. Feeding plate; 303. Hole slot; 4. Moving trough; 5. Sinking trough; 6. Feeding guide roller; 7. Dehumidifying fan; 8. Air inlet pipe; 9. Air guide pipe; 10. Air outlet; 11. Sliding block; 12. Hydraulic cylinder; 13. End assembly seat; 14. Linear lead screw; 15. Guide rod; 16. Moving seat; 17. Motor; 18. Baffle; 19. Limiting beam. Detailed Implementation

[0019] To enhance understanding of the present invention, the present invention will be further described in detail below with reference to embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0020] according to Figure 1-4 As shown, this embodiment proposes an automated three-dimensional warehouse for cardboard packaging conveying, including a physical warehouse and a digital twin warehouse system. The physical warehouse includes a warehouse body 1, shelves 2, a feeding drive mechanism, an adjustable feeding rack 3, and a moisture-proof mechanism. The warehouse body 1 has multiple sets of shelves 2 inside, and multiple sets of lifting drive mechanisms are installed on the warehouse body 1. These lifting drive mechanisms control the lifting and lowering of multiple sets of shelves 2 within the warehouse body 1. A feeding drive mechanism is located below the lowest set of shelves 2, and this feeding drive mechanism is assembled to the lower part of the warehouse body 1. The feeding drive mechanism is equipped with an adjustable feeding rack 3. The multiple sets of shelves 2... Each shelf 2 is equipped with a moving trough 4, and a sinking trough 5 is provided on both sides of the moving trough 4. Multiple sets of feeding guide rollers 6 are rotatably mounted inside the sinking trough 5, with the tops of the multiple sets of feeding guide rollers 6 extending beyond the top of the sinking trough 5. The moisture-proof mechanism is located inside the lower part of the warehouse body 1 on both sides of the material driving mechanism. The moisture-proof mechanism has multiple sets, including a dehumidifying fan 7, an air inlet pipe 8, and an air guide pipe 9. The dehumidifying fan 7 has an air inlet pipe 8 at its suction end and an air guide pipe 9 at its output end. Multiple air guide ports 10 are provided inside the sinking trough 5, and the multiple air guide ports 10 on the multiple sets of shelves 2 are staggered. The digital twin warehouse system is used to monitor the movement equipment in the physical warehouse in real time, assess the health of the movement equipment using machine learning algorithms, and then control the dynamic switching of multiple physical warehouses based on the assessment results.

[0021] This invention utilizes a movable groove 104 on the inner wall of the equipment column 102 of the storage unit 1. A hydraulic cylinder 12 is installed in the movable groove, and sliders 11 are set at the four corners of the shelf. The sliders 11 can slide along the movable groove 104. The output end of the hydraulic cylinder 12 is connected to the top of the slider 11. The hydraulic cylinder 12 precisely controls the lifting height of each set of shelf 2, realizing independent and adjustable shelf lifting control. When the carton packaging is arranged sequentially on multiple sets of shelf 2, the height of the top set of shelf 2 can be adjusted to align with the output end of the carton packaging production line, allowing the carton packaging output from the carton packaging production line to directly enter the top set of shelf 2. Then, the adjustable feeding rack 3 is driven by the feeding drive mechanism to continuously move the carton packaging backward. After the carton packaging on one set of shelf 2 is arranged and stored, the upper shelf 2 is raised, and the next set of shelf 2 is raised to align with the output end of the carton packaging production line. The above operation is repeated until the carton packaging on the bottom set of shelf 2 is arranged and stored. Multiple moisture-proof mechanisms are set on both sides of the feeding drive mechanism. Each moisture-proof mechanism consists of a dehumidifier 7, an air inlet pipe 8, an air duct 9, and an air vent 10 in the sink 5. The dehumidifier 7 draws in humid air from the warehouse through the air inlet pipe 8 and delivers dry airflow to each air vent 10 through the air duct 9. The air vents 10 on the multiple shelves 2 are staggered to ensure that the dry airflow can evenly cover the sink 5 area of ​​all shelves 2. This can stably control the humidity in the warehouse within a suitable range for cardboard box storage, prevent the cardboard boxes from getting damp and deforming, reduce their strength, and protect the items loaded inside the cardboard boxes from moisture.

[0022] The storage body 1 includes a storage base plate 101, equipment storage columns 102, and support storage columns 103. The storage base plate 101 is provided with equipment storage columns 102 and support storage columns 103 on its top. Multiple sets of equipment storage columns 102 and support storage columns 103 are arranged in a rectangular array. The inner sidewall of the equipment storage column 102 is provided with a movable groove 104. The four corners of the multiple sets of shelves 2 are slidably connected to the movable grooves 104 on the corresponding positions of the equipment storage columns 102 through sliders 11. The lifting drive mechanism is a hydraulic cylinder 12, which is installed inside the movable groove 104. The output end of the hydraulic cylinder 12 is connected to the top of the slider 11. The tail end of the storage body 1 is provided with a baffle 18, which is installed with two equipment storage columns 102 located at the tail end of the storage body 1. Multiple sets of limiting beams 19 are provided between the equipment storage columns 102 and the supporting storage columns 103, as well as between adjacent supporting storage columns 103. The multiple sets of limiting beams 19, multiple sets of equipment storage columns 102, and multiple sets of supporting storage columns 103 on the same side are fixedly connected. In this invention, four sets of hydraulic cylinders 12 driving the same shelf 2 are controlled by the same controller to achieve synchronous operation. The storage body 1 of this invention is composed of a storage base plate 101, equipment storage columns 102, and supporting storage columns 103. The top of the storage base plate 101 is provided with multiple sets of equipment storage columns 102 and supporting storage columns 103 in a rectangular array, providing a basic support structure for the entire warehouse. Multiple sets of independent hydraulic cylinders 12 drive the shelf 2 to rise and fall, and the spacing between any two shelves 2 can be flexibly adjusted according to the stacking height of the cartons to meet different storage needs and make full use of the upper space of the warehouse.

[0023] The feeding drive mechanism includes an end assembly seat 13, a linear screw 14, a guide rod 15, and a movable seat 16. The top of the bottom plate 101 has end assembly seats 13 at both ends. A linear screw 14 is rotatably mounted between the two end assembly seats 13. The linear screw 14 is driven by a motor 17. A guide rod 15 is located between the two end assembly seats 13 on both sides of the linear screw 14. The movable seat 16 is slidably connected to the two guide rods 15 and threadedly connected to the linear screw 14. The adjustable feeding rack 3 includes an adjusting cylinder 301 and a feeding plate 302. Both the adjusting cylinder 301 and the feeding plate 302 have two sets. Both sets of adjusting cylinders 301 are located on the top of the movable seat 16. The bottom of the feeding plate 302 has a slot 303. The output end of the adjusting cylinder 301 is connected to the bottom of the slot 303. Two sets of movable slots 4 are provided, and their positions are adapted to the two feeding plates 302. The feeding drive mechanism consists of an end mounting seat 13, a linear screw 14, a guide rod 15, and a movable seat 16. The motor 17 drives the linear screw 14 to rotate. The movable seat 16 is threadedly connected to the linear screw 14 and slidably connected to the guide rod 15, allowing the movable seat 16 to move smoothly along the guide rod 15. The adjustable feeding frame 3 includes an adjusting cylinder 301 and a feeding plate 302. The adjusting cylinder 301 is located on the top of the movable seat 16. The bottom of the feeding plate 302 has a groove 303. The output end of the adjusting cylinder 301 is connected to the bottom of the groove 303. The adjusting cylinder 301 can adjust the top position of the feeding plate 302 according to the height of the shelf 2, so that the movement is not interfered with. The feeding plate 302 pushes the carton packaging to move on the feeding guide roller 6 by moving in the moving groove 4. The setting of the feeding guide roller 6 can reduce the friction between the carton and the shelf 2 and assist the smooth conveying of the carton.

[0024] The digital twin warehouse system includes a digital twin model, a multi-source data acquisition unit, a predictive maintenance algorithm module, and a dynamic scheduling optimization module. The digital twin model constructs a three-dimensional digital model that completely corresponds to the physical warehouse. The multi-source data acquisition unit sets monitoring elements on the moving equipment in the physical warehouse and collects the operating parameters of the moving equipment in real time. The predictive maintenance algorithm module establishes a health assessment model of the moving equipment based on the collected operating data and through machine learning algorithms. The dynamic scheduling optimization module is used to control the dynamic switching of multiple physical warehouses according to the assessment results of the health assessment model.

[0025] Through the multi-source data acquisition units (first pressure sensor, second pressure sensor, current sensor, etc.), the digital twin warehouse system collects operating status parameters of key moving equipment (hydraulic cylinder 12, motor 17, regulating cylinder 301) in the physical warehouse at high frequency. This data includes not only basic signals such as position and speed, but more importantly, process parameters reflecting the internal health status of the equipment, such as the pressure fluctuation timing of the hydraulic cylinder, the three-phase current timing and harmonics of the motor, and the action response pressure curve of the regulating cylinder.

[0026] The LSTM network in the LSTM-Attention-based sequence degradation assessment model excels at capturing long-term dependencies and can memorize the operating sequence patterns of the equipment under normal conditions. The Attention mechanism automatically focuses on the periods in the sequence where abnormal or degraded features are most obvious (such as the abnormal current spike at the moment of motor 17 startup, and the pressure decay during the pressure holding period of hydraulic cylinder 12 and regulating cylinder 301). The LSTM-Attention-based sequence degradation assessment model outputs a quantitative health index (HI) by comparing the difference between the real-time sequence and historical healthy sequences. The change in HI expresses the lifespan of the moving equipment. The dynamic decline of HI from 100% (new) to 0% (faulty) intuitively represents the degradation process of the equipment.

[0027] The remaining useful life prediction model based on deep survival analysis predicts the probability distribution of failures within a certain period of time by taking multi-dimensional features such as HI trend, cumulative equipment working time, and workload as inputs. It provides the probability of failure time windows. Through the processing of the above model, a fundamental shift from "post-event maintenance" to "pre-event prediction" of automated warehouses has been achieved. It provides accurate time windows for planned maintenance and avoids the production-fatal downtime caused by sudden failures of automated warehouses.

[0028] The multi-source data acquisition unit, by setting monitoring elements on the moving equipment in the physical warehouse and collecting the operating parameters of the moving equipment fed back by the monitoring elements in real time, includes setting a first pressure sensor on the hydraulic cylinder 12, a current sensor on the motor 17 driving the linear screw 14, and a second pressure sensor on the regulating cylinder 301. The predictive maintenance algorithm module consists of an LSTM-Attention-based sequence degradation assessment model and a deep survival analysis-based remaining service life prediction model. The LSTM-Attention-based sequence degradation assessment model encodes the real-time operating sequence of the monitored moving equipment in the physical warehouse and outputs a dynamic health index HI. The deep survival analysis-based remaining service life prediction model determines whether the monitored moving equipment in the physical warehouse is currently abnormal and predicts the time of failure of the monitored moving equipment, providing a time window for planned maintenance and dynamic scheduling. The operating parameters of the moving equipment in the physical warehouse collected in real time by the multi-source data acquisition unit, the health index HI output by the LSTM-Attention-based sequence degradation assessment model, and the results output by the deep survival analysis-based remaining service life prediction model are all automatically updated to the digital twin model.

[0029] This invention creates a movable groove 104 on the inner side wall of the equipment column 102 of the warehouse body 1, and assembles a hydraulic cylinder 12 in the movable groove 104, so that the sliders 11 at the four corners of the shelf 2 can slide along the movable groove 104, and the lifting height of each set of shelves 2 is precisely controlled by the hydraulic cylinder 12. This independent and adjustable shelf lifting structure can directly connect with the output end of the production line at different heights, eliminating the need for manual transfer of cardboard packaging, completely solving the problem of low efficiency in the connection between the production line and the warehouse, and greatly improving the continuity of warehousing. The automated storage and retrieval system of the present invention is equipped with a feeding drive mechanism consisting of an end assembly seat 13, a linear screw 14, a guide rod 15, and a movable seat 16. It is equipped with an adjustable feeding rack 3 containing an adjusting cylinder 301 and a feeding plate 302. When the linear screw 14 is driven to rotate by the motor 17, the movable seat 16 can move smoothly along the guide rod 15. The adjusting cylinder 301 can adjust the position of the feeding plate 302 according to the height of the shelf 2, so that the feeding plate 302 is accurately embedded in the moving groove 4 of the shelf 2. At the same time, the feeding guide rollers 6 in the upper and lower grooves 5 of the shelf 2 can reduce the friction between the carton and the shelf 2 and assist the smooth transportation of the carton. The whole process realizes the automated movement and orderly arrangement of the carton from the warehouse to the shelf 2 without manual sorting. This reduces labor intensity, avoids waste of storage space, makes the cartons on each shelf 2 more neatly arranged, and improves the space utilization rate. The automated three-dimensional warehouse of the present invention has multiple sets of moisture-proof mechanisms on both sides of the feeding drive mechanism. Each set of moisture-proof mechanisms consists of a dehumidifier 7, an air inlet pipe 8, an air guide pipe 9, and an air guide port 10 in the sink 5. The dehumidifier 7 draws in humid air from the warehouse through the air inlet pipe 8 and delivers dry airflow to each air guide port 10 through the air guide pipe 9. The automated storage and retrieval system of the present invention uses multiple independent hydraulic cylinders 12 to drive the shelves 2 to rise and fall. The spacing between any two shelves 2 can be flexibly adjusted according to the stacking height of the cartons. This can meet the storage needs of a small number of single-layer, high-stacked cartons, as well as the dense storage of multiple layers of low-stacked cartons, making full use of the high-level space of the warehouse. Multiple sets of limiting beams 19 are set between the equipment warehouse column 102 and the supporting warehouse column 103, and between adjacent supporting warehouse columns 103. The limiting beams 19 on the same side are fixedly connected to the warehouse column, which greatly enhances the overall structural stability of the warehouse 1. It can withstand the weight load of multiple layers of cartons and prevent the warehouse 1 from deforming due to storage pressure. The baffle 18 at the rear end of the warehouse 1 can prevent cartons from falling due to overtravel during transportation, further ensuring the safety of the storage process.

[0030] The digital twin warehouse system of this invention can upgrade fixed-cycle maintenance to predictive maintenance based on the actual status of equipment, significantly reducing maintenance costs and unexpected downtime, minimizing the impact of local equipment performance degradation, and ensuring the continuity and high availability of overall logistics operations.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated three-dimensional warehouse for cardboard box packaging and conveying, comprising a physical warehouse and a digital twin warehouse system, characterized in that: The physical warehouse includes a warehouse body (1), shelves (2), a feeding drive mechanism, an adjustable feeding rack (3), and a moisture-proof mechanism. The warehouse body (1) is equipped with multiple sets of shelves (2) and multiple sets of lifting drive mechanisms. The multiple sets of lifting drive mechanisms control the multiple sets of shelves (2) to rise and fall inside the warehouse body (1). The feeding drive mechanism is located below the bottom set of shelves (2). The feeding drive mechanism is assembled with the lower part of the warehouse body (1). The feeding drive mechanism is equipped with an adjustable feeding rack (3). Each set of shelves (2) is equipped with a moving groove (4). The shelves (2) on both sides of the moving groove (4) are equipped with a sinking groove (5). Multiple sets of feeding guide rollers (6) are rotatably arranged inside the sinking groove (5). The top of each set of feeding guide rollers (6) extends out of the top of the sinking groove (5). The moisture-proof mechanism is located inside the warehouse body (1) on both sides of the feeding drive mechanism. The digital twin warehouse system is used to monitor the movement of equipment in physical warehouses in real time, assess the health of the equipment through machine learning algorithms, and then control the dynamic switching of multiple physical warehouses based on the assessment results.

2. The automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 1, characterized in that: The moisture-proof mechanism is provided in multiple sets. The moisture-proof mechanism includes a dehumidifying fan (7), an air inlet pipe (8), and an air guide pipe (9). The dehumidifying fan (7) has an air inlet pipe (8) at its suction end and an air guide pipe (9) at its output end. The sink trough (5) is provided with multiple air guide ports (10). The multiple air guide ports (10) on the multiple sets of the shelf (2) are staggered with each other.

3. An automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 1, characterized in that: The digital twin warehouse system includes a digital twin model, a multi-source data acquisition unit, a predictive maintenance algorithm module, and a dynamic scheduling optimization module. The digital twin model constructs a three-dimensional digital model that completely corresponds to the physical warehouse. The multi-source data acquisition unit sets monitoring elements on the moving equipment in the physical warehouse and collects the operating parameters of the moving equipment in real time. The predictive maintenance algorithm module establishes a health assessment model of the moving equipment based on the collected operating data and through machine learning algorithms. The dynamic scheduling optimization module is used to control the dynamic switching of multiple physical warehouses according to the assessment results of the health assessment model.

4. An automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 3, characterized in that: The storage body (1) includes a storage base plate (101), equipment storage columns (102) and support storage columns (103). The storage base plate (101) is provided with equipment storage columns (102) and support storage columns (103) on the top. The equipment storage columns (102) are arranged in a rectangular array in multiple groups, and the support storage columns (103) are arranged in a rectangular array in multiple groups. The inner sidewall of the equipment storage column (102) is provided with a movable groove (104). The four corners of the multiple sets of shelves (2) are slidably connected to the movable groove (104) on the corresponding equipment storage column (102) through sliders (11). The lifting drive mechanism is a hydraulic cylinder (12). The hydraulic cylinder (12) is installed inside the movable groove (104), and the output end of the hydraulic cylinder (12) is connected to the top of the slider (11).

5. An automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 4, characterized in that: The tail end of the storage body (1) is provided with a baffle (18), which is installed with two equipment storage columns (102) located at the tail end of the storage body (1). Multiple sets of limiting beams (19) are provided between the equipment storage columns (102) and the supporting storage columns (103) and between adjacent supporting storage columns (103). Multiple sets of limiting beams (19), multiple sets of equipment storage columns (102) and multiple sets of supporting storage columns (103) on the same side are fixedly connected.

6. An automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 5, characterized in that: The feeding drive mechanism includes an end assembly seat (13), a linear screw (14), a guide rod (15), and a movable seat (16). The top two ends of the bottom plate (101) are provided with end assembly seats (13), and a linear screw (14) is rotatably provided between the two end assembly seats (13). The linear screw (14) is driven by a motor (17). A guide rod (15) is provided between the two end assembly seats (13) on both sides of the linear screw (14). The movable seat (16) is slidably connected to the two guide rods (15), and the movable seat (16) is threadedly connected to the linear screw (14).

7. An automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 6, characterized in that: The adjustable feeding rack (3) includes an adjusting cylinder (301) and a feeding plate (302). The adjusting cylinder (301) and the feeding plate (302) are provided in two sets. The two sets of adjusting cylinders (301) are both located on the top of the movable seat (16). The bottom of the feeding plate (302) is provided with a slot (303). The output end of the adjusting cylinder (301) is connected to the bottom of the slot (303). The movable slot (4) is provided in two sets. The two sets of movable slots (4) are adapted to the positions of the two feeding plates (302).

8. An automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 7, characterized in that: The multi-source data acquisition unit, by setting monitoring elements on the moving equipment in the physical warehouse and collecting the operating parameters of the moving equipment fed back by the monitoring elements in real time, includes setting a first pressure sensor on the hydraulic cylinder (12), setting a current sensor on the motor (17) that drives the linear screw (14), and setting a second pressure sensor on the regulating cylinder (301).

9. An automated three-dimensional warehouse for cardboard box packaging and conveying according to claim 8, characterized in that: The predictive maintenance algorithm module consists of an LSTM-Attention-based sequence degradation assessment model and a deep survival analysis-based remaining useful life prediction model. The LSTM-Attention-based sequence degradation assessment model is used to encode the real-time operating sequence of the monitored motion equipment in the physical warehouse and output a dynamic health index HI. The deep survival analysis-based remaining useful life prediction model is used to determine whether the monitored motion equipment in the physical warehouse is currently abnormal and to predict the time when the monitored motion equipment in the physical warehouse will fail, providing a time window for planned maintenance and dynamic scheduling.

10. An automated three-dimensional warehouse for carton packaging and conveying according to claim 9, characterized in that: The operating parameters of the moving equipment in the physical warehouse collected in real time by the multi-source data acquisition unit, the health index HI output by the sequence degradation assessment model based on LSTM-Attention, and the results output by the remaining lifespan prediction model based on deep survival analysis are all automatically updated into the digital twin model.

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