Feeding and sorting equipment and feeding and sorting method for stacked flat objects

Abstract

The invention relates to the technical field of logistics sorting, in particular to feeding and sorting equipment and a feeding and sorting method for stacked flat objects. A bag supply device of the stacking type flat object feeding and sorting equipment is located on one side of a feeding opening of an annular sowing wall. The bag supply device is configured to split the stacked flat objects, obtain logistics code information on the surfaces of the flat objects one by one by utilizing code scanning equipment, and convey the flat objects to a feeding opening of the annular seeding wall one by one. And an annular conveying channel is arranged in the annular seeding wall. And a storage rack is arranged on the outer side of the annular conveying channel. The conveying trolley is constructed to do circular motion in the annular conveying channel to pass through the feeding opening, receives the flat objects located at the feeding opening according to the logistics code information and delivers the flat objects to the storage units on the corresponding storage shelves. According to the feeding and sorting equipment for the stacked flat objects, the structure of existing feeding and sorting equipment is optimized, and the feeding and sorting speed is increased.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics sorting, and in particular to a feeding and sorting device and a feeding and sorting method for stacked flat objects. Background Art

[0002] In the field of logistics sorting, stacked flat objects refer to objects with a certain area but relatively small thickness, and multiple such objects can be stacked. In three-dimensional space, the thickness (or height) of such objects is much smaller than the length and width, and they usually present a flat shape. The thickness of such objects may be between a few millimeters and a few centimeters, while the length and width vary from tens of centimeters. For example, common express envelopes are usually loaded in the form of stacked pieces in logistics sorting.

[0003] At present, manual loading can be used in usage scenarios where the number of stacked flat objects is small. Workers pick up the stacked flat objects one by one and place them on the loading conveyor belt. When placing them, pay attention to the direction and position of the objects to ensure that they can smoothly enter the sorting process. For example, the side with the logo or barcode should be placed upwards for subsequent scanning and identification. In the usage scenario where the number of such objects is thousands of pieces, the existing technology usually places a large number of stacked flat objects in a silo with a certain inclination angle, and uses gravity to make the objects slide naturally in the silo to the conveyor belt, so as to realize one-by-one feeding to the sorting equipment.

[0004] However, the prior art loading and sorting equipment is limited by its own structural defects and is difficult to meet the demand for processing thousands of objects per hour, wherein the processing demand includes the loading rate and the sorting rate.

[0005] In order to meet the above requirements, existing loading equipment will integrate a robotic arm, cooperate with a visual recognition system, identify the position and posture of stacked flat objects, and then accurately grab the objects and place them on the loading conveyor belt. According to the preset program and algorithm, the grabbing path and action are automatically planned to improve the efficiency and accuracy of loading. Even so, it is still difficult to meet the loading requirements.

[0006] In addition, the sorting equipment currently compatible with the above-mentioned feeding equipment is usually a linear seeding wall, which feeds from one end, sorts along a straight line, and distributes the goods to the corresponding storage cells according to pre-set instructions (such as order information). In addition to the limit of the feeding rate of the robot arm itself, the upper limit of the sorting efficiency of the sorting equipment of the linear seeding wall also restricts the feeding rate of the robot arm, making it difficult to meet the feeding and sorting needs of stacked flat objects. Summary of the invention

[0007] In view of the above technical problems, in a first aspect, the present invention provides a feeding and sorting device for stacked flat objects, comprising a bag supply device and an annular seeding wall; The bag supply device is located at one side of the feeding port of the annular sowing wall, and is configured to split the stacked flat objects, obtain the logistics code information on the surface of the flat objects one by one by using a code scanning device, and transport the flat objects one by one to the feeding port of the annular sowing wall; An annular conveying channel is arranged in the annular sowing wall, a transport trolley is arranged in the annular conveying channel, and storage shelves are arranged outside the annular channel. The transport trolley is constructed to make circular motion in the annular conveying channel and pass through the loading port, receive flat objects at the loading port according to the logistics code information, and deliver the flat objects to the storage unit on the corresponding storage shelf.

[0008] Preferably, the package supply device comprises a conveying component, a loading component and a loading conveying platform, a material distribution platform is arranged between the conveying component and the loading component, a code scanning station is arranged on one side of the material distribution platform, and the code scanning device is arranged in the code scanning station, and the code scanning station is located between the loading conveying platform and the material distribution platform; The conveying component is configured to arrange the plurality of stacked flat objects in a single row and convey each group of stacked flat objects to the material distribution platform one by one; The loading component is constructed to separate the stacked flat objects on the material distribution platform layer by layer, and use the grabbing mechanism to transfer the topmost flat objects on the stacked flat objects on the material distribution platform to the code scanning station one by one, and then transfer them to the loading conveyor platform.

[0009] Preferably, the material distribution platform, the code scanning station and the loading and conveying platform are arranged in a row.

[0010] Preferably, the feeding component includes a base and a grabbing mechanism, and the grabbing mechanism is installed above the material distribution platform through the base; The gripping mechanism comprises a suction cup assembly, a crank slider mechanism and a power component, wherein the suction cup assembly is connected to the output end of the power component through the crank slider mechanism; The suction cup assembly is provided with a first grabbing position and a second grabbing position. The suction cup assembly is constructed so that the first grabbing position grabs the flat object on the material distribution platform, and the second grabbing position grabs the flat object on the code scanning station, and is driven by a power component to transfer from one side of the material distribution platform to the side of the upper material conveying platform. The first grabbing position releases the sucked flat object on the code scanning station, and the second grabbing position releases the sucked flat object on the upper material conveying platform.

[0011] Preferably, the annular seeding wall further comprises a turntable mechanism, which is configured to drive the transport trolley to rotate in the annular conveying channel so that the transport trolley can perform circular motion through the loading port.

[0012] Preferably, the transport trolley includes a mounting frame, a material frame and a lifting assembly. The lifting assembly is arranged axially parallel to the rotating shaft of the turntable mechanism and is used to drive the material frame to reciprocate along the height direction of the storage shelf. The material frame is connected to the lifting assembly, and the lifting assembly is connected to the turntable mechanism through the mounting frame.

[0013] Preferably, the lifting assembly includes a stand and a synchronous belt unit, the stand is connected to the mounting frame, and the synchronous belt unit is mounted on the stand to drive the material frame to reciprocate along the height direction of the storage shelf.

[0014] Preferably, the annular seeding wall is provided with a plurality of feeding ports, and a bag supply device is correspondingly provided at each feeding port.

[0015] In a second aspect, the present invention further proposes a material loading and sorting method using the above-mentioned stacked flat object loading and sorting device, comprising the following steps: The stacked flat objects are first separated by a packing device so that each flat object can be processed individually; The barcode scanning device scans the surface of flat objects one by one to obtain their logistics code information; The flat objects with the obtained logistics code information are transported one by one to the feeding port of the annular sowing wall through the grabbing mechanism in the bag supply device; The transport trolley passing through the annular seeding wall moves in a circle in the annular conveying channel and passes through the loading port. According to the logistics code information, the flat objects located at the loading port are received and the flat objects are delivered to the storage unit on the corresponding storage shelf.

[0016] Preferably, the package supply device arranges the plurality of stacked flat objects in a single row using a conveying component, and conveys each group of stacked flat objects to the material distribution platform one by one; The stacked flat objects on the material distribution platform are then separated layer by layer through the loading component of the packaging device, and the topmost flat objects on the stacked flat objects on the material distribution platform are moved one by one to the code scanning station for parking and then transferred to the loading conveyor table connected to the loading port by using the grabbing mechanism.

[0017] Compared with the prior art, the stacking flat object loading and sorting device and loading and sorting method provided by the present invention have the following outstanding substantial features and significant improvements: 1. The package supply device in the stacked flat object feeding and sorting equipment can automatically split the stacked flat objects, and use the code scanning device to obtain the logistics code information on the surface of the flat objects one by one. Compared with manual splitting and code scanning, it greatly improves work efficiency, reduces the errors that may be caused by manual operation, and improves the accuracy and speed of information acquisition. The transport trolley moves in a circle in the annular conveying channel. According to the obtained logistics code information, it can accurately deliver the flat objects to the storage unit on the corresponding storage shelf, which can effectively avoid the wrong delivery of objects and improve the accuracy of sorting, thereby improving the efficiency and quality of the overall logistics processing.

[0018] 2. The stacking flat object loading and sorting equipment adopts the design of a circular seeding wall, with a circular conveying channel inside and storage shelves on the outside. This layout has a compact structure. Compared with some traditional large-scale, decentralized sorting equipment, it can realize more storage and sorting functions in a limited space, effectively saving site space and improving space utilization. It is especially suitable for scenes with limited space but large sorting needs. From object splitting, code scanning to transportation and delivery, the whole process has achieved a high degree of automation, reducing manual intervention, which not only reduces labor costs, but also maintains stable work efficiency and accuracy during long-term work, reduces the error rate caused by factors such as manual fatigue, and improves the stability and continuity of production operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a loading and sorting device for stacked flat objects in an embodiment of the present invention.

[0020] Figure 2 yes Figure 1 A front view of a loading and sorting device for stacked flat objects.

[0021] Figure 3 yes Figure 2 Top view of the .

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the package supply device in an embodiment of the present invention.

[0023] Figure 5 yes Figure 4 Front view of the central packaging device.

[0024] Figure 6 It is a reference diagram of the usage status of the package feeding device in the embodiment of the present invention during the feeding process of stacked envelopes.

[0025] Figure 7 It is a schematic diagram of the assembly structure of the grabbing mechanism in an embodiment of the present invention.

[0026] Figure 8It is a schematic diagram of the three-dimensional structure of the transport trolley in an embodiment of the present invention.

[0027] Figure numerals: 1. package supply device; 2. annular seeding wall; 3. stacked envelope; 4. single envelope; 11. conveying component; 12. loading component; 13. loading conveying platform; 14. material distribution platform; 15. code scanning station; 21. turntable mechanism; 22. annular conveying channel; 23. transport trolley; 24. storage shelf; 25. loading port; 121. base; 122. suction cup assembly; 123. crank slider mechanism; 124. power component; 231. mounting frame; 232. material frame; 233. lifting assembly; 1221. first grabbing position; 1222. second grabbing position. DETAILED DESCRIPTION

[0028] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] The feeding and sorting equipment in the prior art is limited by its own structural defects and is unable to meet the demand for processing thousands of objects per hour. The existing feeding equipment will be integrated with a robotic arm, which cooperates with the visual recognition system to identify the position and posture of stacked flat objects, and then accurately grab the objects and place them on the feeding conveyor belt. According to the preset program and algorithm, it automatically plans the grabbing path and action to improve the feeding efficiency and accuracy. Even so, it is still difficult to meet the feeding needs. In addition to the limit of the feeding rate of the robotic arm itself, the upper limit of the sorting efficiency of the sorting equipment of the linear seeding wall also restricts the feeding rate of the robotic arm, making it difficult to meet the feeding and sorting needs of stacked flat objects. Figure 1-Figure 8 As shown, an embodiment of the present invention provides a loading and sorting device for stacked flat objects, aiming to optimize the structure of the existing loading and sorting device and improve the loading and sorting rate.

[0030] A loading and sorting device for stacked flat objects proposed in an embodiment of the present invention utilizes a packaging device to automatically split the stacked flat objects, and utilizes a code scanning device to obtain the logistics code information on the surface of the flat objects one by one. At the same time, the transport trolley makes a circular motion in the annular conveying channel, and can accurately deliver the flat objects to the storage units on the corresponding storage shelves according to the acquired logistics code information, which can effectively avoid the wrong delivery or misdelivery of objects, improve the accuracy of sorting, and realize more storage and sorting functions in a limited space, effectively saving site space and improving space utilization. It is particularly suitable for scenes with limited space but large sorting needs. From the splitting and scanning of objects to transportation and delivery, the entire process achieves a high degree of automation and reduces manual intervention, which not only reduces labor costs, but also maintains stable work efficiency and accuracy during long-term work, reduces the error rate caused by factors such as manual fatigue, and improves the stability and continuity of production operations.

[0031] like Figure 1 Combination Figure 2 As shown, a stacked flat object loading and sorting device comprises a bag supply device 1 and an annular sowing wall 2. The bag supply device 1 is located on one side of a loading port 25 of the annular sowing wall 2. The bag supply device 1 is configured to separate the stacked flat objects, obtain logistics code information on the surface of the flat objects one by one using a code scanning device, and transport the flat objects one by one to the loading port 25 of the annular sowing wall 2.

[0032] like Figure 2 Combination Figure 3 As shown, an annular conveying channel 22 is provided in the annular sowing wall 2. A transport trolley 23 is provided in the annular conveying channel 22. A storage shelf 24 is provided outside the annular channel. The transport trolley 23 is configured to make a circular motion in the annular conveying channel 22 and pass through the loading port 25, receive the flat objects at the loading port 25 according to the logistics code information, and deliver the flat objects to the storage unit on the corresponding storage shelf 24.

[0033] like Figure 4 As shown, the package supply device 1 includes a conveying component 11, a loading component 12 and a loading conveying platform 13. A material distribution platform 14 is arranged between the conveying component 11 and the loading component 12. A code scanning station 15 is arranged on one side of the material distribution platform 14. The code scanning device is arranged in the code scanning station 15. The code scanning station 15 is located between the loading conveying platform 13 and the material distribution platform 14.

[0034] The conveying component 11 is configured to arrange multiple groups of stacked flat objects in a single row and convey each group of stacked flat objects one by one to the material distribution platform 14. The conveying component 11 arranges multiple groups of stacked flat objects in a single row and conveys them to the material distribution platform 14. This orderly conveying method avoids chaotic accumulation of materials, provides a good foundation for subsequent separation and processing, makes the entire loading process smoother, and greatly improves the efficiency of material processing.

[0035] like Figure 4 Combination Figure 5 As shown, the loading component 12 is configured to separate the stacked flat objects on the material distribution platform 14 layer by layer, and use the grabbing mechanism to transfer the topmost flat objects on the stacked flat objects on the material distribution platform 14 to the code scanning station 15 for parking and then transfer them to the loading conveying platform 13. In this way, the loading component 12 can accurately separate and transfer the stacked flat objects, effectively avoid damage to the flat objects caused by improper operation, ensure the integrity of the materials, and also ensure the smooth progress of code scanning and subsequent conveying links.

[0036] The code scanning station 15 is arranged between the material distribution platform 14 and the material feeding conveyor platform 13, so that the flat objects can be scanned during the transfer process, avoiding extra handling and waiting time, and improving the efficiency of code scanning. Moreover, since a single flat object is transferred for code scanning each time, the interference during code scanning is reduced, the accuracy of code scanning is greatly improved, and it is helpful for subsequent accurate sorting according to the logistics code information.

[0037] The feeding component 12 adopts a phased and modular design, so that the package supply device 1 can adapt to the feeding and sorting requirements of stacked flat objects of different sizes, weights and materials. By adjusting the parameters of the conveying component 11, the gripping mechanism and other parts, new materials can be quickly adapted, which reduces the modification cost of the equipment and improves the versatility and adaptability of the equipment.

[0038] At the same time, each component is relatively independent yet works in coordination, and the structural layout is clear. When equipment fails, it is convenient for technicians to quickly locate the problem component, perform repairs and replacements, reducing equipment downtime and improving the maintainability and overall operational stability of the equipment.

[0039] like Figure 6 As shown, the material distribution platform 14, the code scanning station 15 and the loading conveyor platform 13 are arranged in a row. The layout arranged in a row makes the flow path of flat objects clear and direct. The objects separated from the material distribution platform 14 are directly transferred to the adjacent code scanning station 15, and after the code scanning is completed, they can be quickly transferred to the loading conveyor platform 13, reducing the circuitous transportation of materials inside the equipment.

[0040] According to some preferred embodiments of the present invention, the loading component 12 includes a base 121 and a grabbing mechanism. The grabbing mechanism is installed above the material distribution platform 14 through the base 121.

[0041] like Figure 7 As shown, the gripping mechanism includes a suction cup assembly 122, a crank slider mechanism 123 and a power component 124. The suction cup assembly 122 is connected to the output end of the power component 124 through the crank slider mechanism 123.

[0042] The suction cup assembly 122 is provided with a first grabbing position 1221 and a second grabbing position 1222. The suction cup assembly 122 is configured such that the first grabbing position 1221 grabs a flat object on the material distribution platform 14, and the second grabbing position 1222 grabs a flat object on the code scanning station 15, and is driven by the power component 124 to transfer from one side of the material distribution platform 14 to the side of the upper material conveying platform 13, and the first grabbing position 1221 releases the sucked flat object on the code scanning station 15, and the second grabbing position 1222 releases the sucked flat object on the upper material conveying platform 13.

[0043] The suction cup assembly 122 is provided with a first grabbing position 1221 and a second grabbing position 1222, and can perform grabbing actions on the material distribution platform 14 and the code scanning station 15 at the same time, thereby realizing parallel processing of materials and greatly shortening the time for transferring a single flat object from the material distribution platform 14 to the loading and conveying platform 13. Compared with the mechanism with a single grabbing position, the overall loading efficiency is significantly improved.

[0044] The crank slider mechanism 123 is connected to the power component 124, so that the suction cup assembly 122 can be driven by the power component 124 to accurately transfer between the material distribution platform 14, the code scanning station 15 and the loading and conveying platform 13, integrating multiple actions of grabbing, transferring and releasing materials into a coherent movement process, reducing the movement links and time loss of the equipment, and optimizing the material transfer process.

[0045] Among them, the crank slider mechanism 123 can convert the circular motion of the power component 124 into smooth linear motion, ensuring the stability of the suction cup assembly 122 when grasping and transferring flat objects, reducing the risk of material falling due to shaking or displacement, and improving the reliability of operation. It is especially suitable for material transfer scenarios with high requirements for position accuracy.

[0046] In this way, the integrated gripping mechanism design reduces other complex mechanical structures or additional drive devices required to achieve material transfer, reducing the manufacturing and maintenance costs of the equipment. At the same time, since the equipment failure points are reduced, the maintenance cost and downtime of the equipment are further reduced, and the cost performance of the equipment is improved.

[0047] In addition, by adjusting the output parameters of the power component 124 and the size and structure of the crank slider mechanism 123, it can easily adapt to the grasping and transferring requirements of flat objects of different sizes, weights and shapes, thereby improving the versatility of the equipment for a variety of materials and reducing the cost of replacing equipment due to material changes.

[0048] like Figure 3 As shown, the annular seed wall 2 further includes a turntable mechanism 21. The turntable mechanism 21 is configured to drive the transport trolley 23 to rotate in the annular conveying channel 22, so that the transport trolley 23 can move in a circular motion through the loading port 25.

[0049] like Figure 8 As shown, the transport trolley 23 includes a mounting frame 231, a material frame 232 and a lifting assembly 233. The lifting assembly 233 is arranged parallel to the axial direction of the rotating shaft of the turntable mechanism 21, and is used to drive the material frame 232 to reciprocate along the height direction of the storage shelf 24. The material frame 232 is connected to the lifting assembly 233, and the lifting assembly 233 is connected to the turntable mechanism 21 through the mounting frame 231.

[0050] For example, the lifting assembly 233 includes a stand and a synchronous belt unit, the stand is connected to the mounting frame 231, and the synchronous belt unit is installed on the stand, and is used to drive the material frame 232 to reciprocate along the height direction of the storage shelf 24. In this way, the synchronous belt unit has the characteristics of high transmission accuracy. When driving the material frame 232 to reciprocate along the height direction of the storage shelf 24, the position of the material frame 232 can be accurately controlled so that it can accurately reach the height matching each storage unit. This accuracy is crucial to ensure that the goods are accurately sorted and placed in the designated storage unit, greatly reducing the sorting errors caused by inaccurate positioning of the material frame 232, and improving the sorting accuracy and operation quality of the entire annular sowing wall 2. For example, when handling some small or precision goods that require high placement accuracy, the synchronous belt unit can ensure that the material frame 232 can accurately stop at the appropriate height every time to avoid collision or misplacement of the goods.

[0051] In addition, the synchronous belt drive runs smoothly, and can effectively reduce vibration and impact in the process of driving the material frame 232 to rise or fall. This is of great significance for protecting the integrity of the goods, especially for some fragile goods or goods that are sensitive to transportation conditions. The smooth movement can prevent the goods from being damaged due to violent shaking in the material frame 232. At the same time, the smooth operation is also conducive to extending the service life of the equipment, reducing the wear and fatigue damage caused by vibration and impact to the lifting component 233 itself and the mounting frame 231, material frame 232 and other components connected thereto, reducing the maintenance cost and failure rate of the equipment, and ensuring that the annular seeding wall 2 can operate stably and reliably for a long time.

[0052] In addition, the structural design of the vertical frame connected to the mounting frame 231 makes the overall structure of the lifting assembly 233 relatively compact. In the limited space of the annular seeding wall 2, this compact structure can be better laid out and installed, reducing the occupation of the surrounding space, which is conducive to the optimization of the spatial configuration of the entire device. Compared with some lifting devices with loose structures and large volumes, it can enable the annular seeding wall 2 to achieve a smaller footprint or more reasonable space utilization while maintaining efficient sorting functions, which is particularly critical for logistics warehousing environments with tight warehouse space resources, and can improve the space utilization rate and storage capacity of the warehouse.

[0053] According to some preferred embodiments of the present invention, the annular seeding wall 2 is provided with a plurality of loading ports 25, and a bag supply device 1 is correspondingly provided at each loading port 25. The plurality of loading ports 25 and the corresponding bag supply devices 1 can simultaneously split, scan and convey a plurality of groups of stacked flat objects, greatly increasing the number of materials entering the annular seeding wall 2 for sorting per unit time, effectively improving the processing capacity of the entire loading and sorting equipment, and meeting the high-efficiency requirements of large-scale production and logistics distribution.

[0054] Each loading port 25 and the bag supply device 1 work relatively independently. When a bag supply device 1 has a temporary failure or needs maintenance, other bag supply devices 1 can still operate normally without affecting the operation of the entire equipment, reducing the downtime of the equipment due to local failures and improving the overall utilization of the equipment.

[0055] Moreover, different packaging supply devices 1 can process flat objects of different types and specifications according to actual needs, or perform independent operations for different order tasks, making the entire system more flexible in dealing with diverse sorting tasks and able to quickly adapt to market changes and customers' personalized needs.

[0056] When used, a stacking flat object loading and sorting device proposed in an embodiment of the present invention includes the following steps: The stacked flat objects are first separated by the package supply device 1 so that each flat object can be processed individually.

[0057] The barcode scanning device scans the surface of flat objects one by one to obtain their logistics code information.

[0058] The flat objects with acquired logistics code information are transported one by one to the loading port 25 of the annular sowing wall 2 through the grabbing mechanism in the package supply device 1 .

[0059] The transport trolley 23 of the annular seed wall 2 makes a circular motion in the annular conveying channel 22 and passes through the loading port 25. According to the logistics code information, the flat objects located at the loading port 25 are received and delivered to the storage unit on the corresponding storage shelf 24.

[0060] Among them, the packaging device 1 uses a conveying component 11 to arrange multiple groups of stacked flat objects in a single row, and conveys each group of stacked flat objects to the material distribution platform 14 one by one; then the stacked flat objects located on the material distribution platform 14 are separated layer by layer by the loading component 12 of the packaging device 1, and the topmost flat objects of the stacked flat objects on the material distribution platform 14 are transferred one by one by the grabbing mechanism to the code scanning station 15 for parking and then transferred to the loading conveying platform 13 used to connect to the loading port 25.

[0061] For example, when a stacked flat object feeding and sorting device proposed in an embodiment of the present invention processes stacked envelopes 3, neatly stacked envelopes are placed on the conveying component 11. After the conveying component 11 is started, the stacked envelopes are arranged in a single row at a certain interval by using its internal transmission structure, such as a belt or a roller, and are sequentially and smoothly conveyed to the material distribution platform 14. This process ensures that each group of envelopes can enter the next processing stage in an orderly manner, avoiding difficulties in subsequent operations due to chaotic accumulation of envelopes.

[0062] When the stacked envelopes reach the distributing platform 14, the grabbing mechanism of the loading component 12 starts to work. The first grabbing position 1221 of the suction cup assembly 122 uses the negative pressure adsorption principle to accurately adsorb the single envelope 4 on the top layer of the distributing platform 14. Since the envelope is light and thin, the suction force of the suction cup is precisely adjusted, which can not only firmly grasp the envelope, but also will not cause damage to the envelope. Driven by the power component 124, the adsorbed envelope is transferred from the distributing platform 14 to the code scanning station 15 through the crank slider mechanism 123. When arriving at the code scanning station 15, the first grabbing position 1221 releases the envelope, and then the second grabbing position 1222 quickly adsorbs the envelope on the station, continues to move to the upper feeding conveying platform 13, and finally places the envelope on the loading conveying platform 13. The distributing platform 14, the code scanning station 15 and the loading conveying platform 13 are arranged in a row in sequence, which greatly shortens the transfer path of the envelope and improves the transfer efficiency.

[0063] When the envelope is placed at the code scanning station 15, the code scanning device starts working immediately. Since the logistics code on the surface of the envelope may be affected by printing quality, stains and other factors, the code scanning device uses high-precision image recognition technology and intelligent error correction algorithm to quickly and accurately obtain the logistics code information, ensuring the accuracy of the subsequent sorting process.

[0064] The loading conveyor 13 conveys the envelopes with the logistics code information to the loading port 25 of the annular sowing wall 2. Since the annular sowing wall 2 is provided with multiple loading ports 25, and each has a corresponding package supply device 1, multiple package supply devices 1 can process envelopes of different batches at the same time, which greatly improves the efficiency of envelopes entering the annular sowing wall 2 and meets the needs of large-scale letter sorting.

[0065] The transport trolley 23 in the annular sowing wall 2 moves in a circle in the annular conveying channel 22. When passing through the loading port 25, the transport trolley 23 uses a mechanical arm or other grasping device to accurately receive the envelope at the loading port 25 according to the previously acquired logistics code information. The transport trolley 23 delivers the envelope to the storage unit of the corresponding storage shelf 24 according to the preset route, completing the entire loading and sorting process. The design of the storage unit fully considers the size and stacking method of the envelope to ensure that the envelope can be stored safely and neatly.

[0066] The present invention is not limited to the specific technical solutions described in the above embodiments. In addition to the above embodiments, the present invention may also have other implementation modes. For those skilled in the art, any technical solutions formed by any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stacking and sorting device for flat objects, characterized in that: It includes a bag supply device and a circular sowing wall; The bag supply device is located at one side of the feeding port of the annular sowing wall, and is configured to split the stacked flat objects, obtain the logistics code information on the surface of the flat objects one by one by using a code scanning device, and transport the flat objects one by one to the feeding port of the annular sowing wall; An annular conveying channel is arranged in the annular sowing wall, a transport trolley is arranged in the annular conveying channel, and storage shelves are arranged outside the annular channel. The transport trolley is constructed to make circular motion in the annular conveying channel and pass through the loading port, receive flat objects at the loading port according to the logistics code information, and deliver the flat objects to the storage unit on the corresponding storage shelf.

2. The stacking and sorting device for flat objects according to claim 1, characterized in that: The package supply device includes a conveying component, a loading component and a loading conveying platform, a material distribution platform is arranged between the conveying component and the loading component, a code scanning station is arranged on one side of the material distribution platform, the code scanning device is arranged in the code scanning station, and the code scanning station is located between the loading conveying platform and the material distribution platform; The conveying component is configured to arrange a plurality of groups of stacked flat objects in a single row and convey each group of stacked flat objects to the material distribution platform one by one; The loading component is configured to separate the stacked flat objects on the material distribution platform layer by layer, and use a grabbing mechanism to transfer the topmost flat objects on the stacked flat objects on the material distribution platform to the code scanning station one by one, and then transfer them to the loading conveyor platform.

3. The stacking and sorting device for flat objects according to claim 2, characterized in that: The material distribution platform, the code scanning station and the material loading and conveying platform are arranged in a row in sequence.

4. The stacking and sorting device for flat objects according to claim 3, characterized in that: The feeding component comprises a base and a grabbing mechanism, and the grabbing mechanism is installed above the material distribution platform through the base; The grabbing mechanism comprises a suction cup assembly, a crank slider mechanism and a power component, wherein the suction cup assembly is connected to the output end of the power component through the crank slider mechanism; The suction cup assembly is provided with a first grabbing position and a second grabbing position. The suction cup assembly is constructed so that the first grabbing position grabs the flat object on the material distribution platform, and the second grabbing position grabs the flat object on the code scanning station, and is driven by a power component to transfer from one side of the material distribution platform to the side of the upper material conveying platform. The first grabbing position releases the sucked flat object on the code scanning station, and the second grabbing position releases the sucked flat object on the upper material conveying platform.

5. The stacking and sorting device for flat objects according to any one of claims 1 to 4, characterized in that: The annular seed wall also includes a turntable mechanism, which is configured to drive the transport trolley to rotate in the annular conveying channel so that the transport trolley can move in a circular motion through the loading port.

6. The stacking and sorting device for flat objects according to claim 5, characterized in that: The transport trolley includes a mounting frame, a material frame and a lifting assembly. The lifting assembly is arranged axially parallel to the rotating shaft of the turntable mechanism and is used to drive the material frame to reciprocate along the height direction of the storage shelf. The material frame is connected to the lifting assembly, and the lifting assembly is connected to the turntable mechanism through the mounting frame.

7. The stacking and sorting device for flat objects according to claim 6, characterized in that: The lifting assembly includes a stand and a synchronous belt unit. The stand is connected to the mounting frame. The synchronous belt unit is mounted on the stand and is used to drive the material frame to reciprocate along the height direction of the storage shelf.

8. The stacking and sorting device for flat objects according to claim 1, characterized in that: The annular seeding wall is provided with a plurality of feeding ports, and a bag supply device is correspondingly provided at each feeding port.

9. The method for loading and sorting stacked flat objects according to claim 1, characterized in that: include: The stacked flat objects are first separated by a packing device so that each flat object can be processed individually; The barcode scanning device scans the surface of flat objects one by one to obtain their logistics code information; The flat objects with the obtained logistics code information are transported one by one to the feeding port of the annular sowing wall through the grabbing mechanism in the bag supply device; The transport trolley passing through the annular seeding wall moves in a circle in the annular conveying channel and passes through the loading port. According to the logistics code information, the flat objects located at the loading port are received and the flat objects are delivered to the storage unit on the corresponding storage shelf.

10. The stacked flat object loading and sorting device according to claim 9, characterized in that: The package supply device arranges multiple groups of stacked flat objects in a single row by using a conveying component, and conveys each group of stacked flat objects to the material distribution platform one by one; The stacked flat objects on the material distribution platform are then separated layer by layer through the loading component of the packaging device, and the topmost flat objects on the stacked flat objects on the material distribution platform are moved one by one to the code scanning station for parking and then transferred to the loading conveyor table connected to the loading port by using the grabbing mechanism.

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