Logistics transportation device based on bidirectional balance wheel structure and working method thereof

Abstract

The present invention relates to a logistics transportation device based on a bidirectional balance wheel structure and its working method, belonging to the technical field of logistics transportation equipment. It sets a stacking separation unit at the input end of the logistics package, and the discharge end of the stacking separation unit is connected to the feed end of the single-piece separation unit through a conveying belt; a guide centering unit is set at the discharge end of the single-piece separation unit, and the package is transported to the information collection and transmission unit after passing through the guide centering unit, and the information collection and transmission unit is connected to the host computer; the discharge end of the information collection and transmission unit is connected to the feed end of the transition unit, and the discharge end of the transition unit is arranged along the length direction of the transportation track at least one sorting balance wheel unit, grid openings are set on both sides of the sorting balance wheel unit, and slide rails are matched between the sorting balance wheel unit and the grid opening, and the outlet of the slide rail is facing the grid opening; a reflective photoelectric device is set at the feed end of the sorting balance wheel unit. The present invention efficiently transports packages into the corresponding grid opening, and a correction module is set on the sorting balance wheel to address the problem of package deviation.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics transportation equipment, and in particular to a logistics transportation device based on a bidirectional balance wheel structure and a working method thereof. Background Art

[0002] In the current logistics industry, the problem of one-way logistics transportation model is becoming increasingly prominent. This traditional transportation method often leads to low logistics efficiency because it only considers one-way flow from one location to another.

[0003] To address this issue, existing technologies attempt to achieve round-trip transport of goods by setting up two parallel transport lines. However, while this approach enables two-way transport, it also introduces new problems. First, two-way transport requires more space to accommodate two parallel transport lines, which is undoubtedly a waste of space in urban areas with limited land resources. Second, two-way transport requires more transport equipment and manpower, thereby increasing transportation costs.

[0004] Furthermore, in actual logistics operations, packages can easily become misaligned when passing through the balance wheel due to factors such as improper packaging or vibrations from machinery during transport. In these cases, packages can easily shift to either side of the balance wheel, causing delays and disruptions in the logistics process. However, currently available balance wheel devices only provide basic conveying functions and lack effective correction measures to address package misalignment. Summary of the Invention

[0005] In response to the shortcomings of the above-mentioned existing production technology, the applicant provides a logistics transportation device based on a bidirectional balance wheel structure and a working method thereof, so that packages can be transported to corresponding slots reasonably and efficiently, and the problem of package deviation during transportation can be solved.

[0006] The technical solution adopted by the present invention is as follows: a logistics transportation device based on a bidirectional balance wheel structure, a stacking separation unit is provided at the input end of the logistics package, the discharge end of the stacking separation unit is connected to the feed end of the single-piece separation unit through a conveyor belt; a guide centering unit is provided at the discharge end of the single-piece separation unit, and the package is transported into the information collection and transmission unit after passing through the guide centering unit, and the information collection and transmission unit is connected to the host computer; the discharge end of the information collection and transmission unit is connected to the feed end of the transition unit, and at least one sorting balance wheel unit is arranged at the discharge end of the transition unit along the length direction of the transportation track, and grid openings are provided on both sides of the sorting balance wheel unit, and a slide rail is matched between the sorting balance wheel unit and the grid opening, and the exit of the slide rail is inclined and facing the grid opening; a reflective photoelectric device is also provided at the feed end of the sorting balance wheel unit.

[0007] As a further improvement of the above technical solution:

[0008] Preferably, the structure of the stack separation unit is: it includes a first stack separation plate, a second stack separation plate and a third stack separation plate arranged in sequence along the transport direction; the first stack separation plate, the second stack separation plate and the third stack separation plate are all inclined from low to high along the package transport direction.

[0009] Preferably, the structure of the single-piece separation unit is: it includes a single-piece separator outer frame, a separation belt unit is arranged inside the single-piece separator outer frame along the package transportation direction, and a visual inspection camera is arranged on the top of the single-piece separator outer frame.

[0010] Preferably, the separation belt unit includes a plurality of small separation belt conveyors, which are arranged vertically and horizontally and evenly distributed; the visual detection camera detects the position of the parcels conveyed to the separation belt unit, and controls the separation belt unit to open according to the detected parcel position information, so that the separation belt unit outputs the delivered parcels at a fixed interval and in a single row toward the discharge end.

[0011] Preferably, the structure of the guide centering unit is: comprising a guide rail arranged along the transport direction, the guide rail is driven by a guide motor, and a plurality of guide rollers are arranged in the running direction of the guide rail; the plurality of guide rollers are distributed in a bilaterally symmetrical "V" shape.

[0012] Preferably, the structure of the information acquisition and transmission unit is as follows: it includes a camera mounting frame arranged around the track along the transportation direction, and information acquisition cameras are matched and arranged on the camera mounting frame in the front, back, left, right, top and bottom surfaces of the package running direction; the information acquisition camera photographs and collects the package information, calculates and obtains the grid information and uploads it to the host computer.

[0013] Preferably, the structure of the transition unit is: it includes an input end transition curved rail connected to the discharge end of the information acquisition and transmission unit, the discharge end of the input end transition curved rail is connected to the feed end of the transition flat rail, the discharge end of the transition flat rail is connected to the feed end of the output end transition curved rail, and the discharge end of the output end transition curved rail is transported to the sorting balance wheel unit through the track.

[0014] Preferably, the structure of the sorting balance wheel unit is as follows: it includes a balance wheel frame, a base support leg is installed at the bottom of the balance wheel frame, and a conveying component is arranged on the top of the balance wheel frame; the structure of the conveying component is as follows: it includes a transport module for changing the direction of conveying packages, and a correction module is arranged on both sides of the transport module.

[0015] Preferably, the structure of the transport module is as follows: it includes a driver and a servo motor, the driver is electrically connected to the electric roller, the top output end of the servo motor is connected to the steering rod, the rod body of the steering rod is fixedly connected to the steering mounting seat, the electric roller is assembled on the top of the steering mounting seat, and when the servo motor rotates, the steering mounting seat is driven to steer through the steering rod so that the electric roller on the top of the steering mounting seat is steered, and the driver is energized to rotate the electric roller; the structure of the correction module is as follows: it includes a correction base fixedly mounted on the top of the pendulum wheel frame, a mounting groove is provided on the top of the correction base, a universal ball is assembled inside the mounting groove, when the logistics package deviates to one side during transportation, the side of the package is against the top of the universal ball, and the top height of the universal ball is set higher than the arc top height of the electric roller; the driver is a bidirectional driver, and the driver is electrically connected to the PLC controller.

[0016] A working method of a logistics transportation device based on a bidirectional balance wheel structure comprises the following steps:

[0017] Step 1: The stacked packages are fed into the stack separation unit from the input end and sequentially pass through the inclined surfaces of the first stack separation plate, the second stack separation plate, and the third stack separation plate to be separated;

[0018] Step 2: After the packages emerge from the stacking separation unit, they are conveyed by a conveyor belt into the single-piece separation unit. The visual inspection camera in the single-piece separation unit detects the position of the packages conveyed onto the separation belt unit and controls the separation belt unit based on the detected package position information. The separation belt unit then discharges the input packages in a single file at a fixed interval toward the discharge end.

[0019] Step 3: Packages are transported out of the single-piece separation unit in a single file at a fixed interval and enter the centering guide unit. When passing through the guide rollers arranged symmetrically on both sides of the centering guide unit, the packages are guided out in the center according to the "V" symmetrical arrangement of the guide rollers on both sides.

[0020] Step 4: After passing through the centering unit, the package is guided to the center and then directed to the information collection and transmission unit. The information collection and transmission unit uses the information collection camera to collect the barcode information of the package and uploads it to the host computer. The host computer calculates the corresponding slot position of the package.

[0021] Step 5: The package is transmitted from the information collection and transmission unit, and after passing through the transition unit, it enters the sorting balance wheel unit along the track transportation direction. At the entrance end of the sorting balance wheel unit, the package triggers the reflective photoelectric, and the sorting balance wheel unit is prompted to enter the package;

[0022] Step 6: The sorting wheel unit receives the corresponding slot position of the package obtained by the upper computer in step 4. When the package is in place, the servo motor of the sorting wheel unit starts to drive the steering rod. At this time, the steering mounting base fixedly connected to the steering rod drives the electric roller on its top to turn to the corresponding slot, and the package enters the slot through the slide rail on one side of the slot.

[0023] The beneficial effects of the present invention are as follows:

[0024] The device of the present invention has a reasonable structure and an efficient overall transportation process. It sequentially separates stacked items, separates individual items, guides and centers the items, collects information, determines the slot information, and turns the sorting wheel. Finally, the parcel is delivered to the corresponding slot. The parcel transportation process is efficient, and no manual intervention is required in the whole process to organize the parcels. The degree of automation is high.

[0025] The present invention also has the following advantages:

[0026] (1) The present invention sets a correction module on both sides of the transport module of the sorting balance wheel. The top height of the universal ball in the correction module is higher than the arc top height of the electric roller in the transport module. When the transport direction of the package is deviated due to problems such as irregular packaging or machine vibration during transportation, one side of the package will be against the top of the universal ball. Since the top height of the universal ball is higher than the arc top height of the electric roller in the transport module, the center of gravity of the package will be slightly biased toward the transport module. At this time, the package will be driven back to the transport direction by the rotation of the universal ball;

[0027] (2) The driver of the sorting balance wheel of the present invention is a bidirectional driver and is electrically connected to the PLC. The PLC sends an electrical signal to the driver to realize the forward or reverse rotation of the driver. When individual packages transported to the end of the line fail to be sorted during transportation, reverse sorting can be adopted, which reduces the time of manual sorting. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 It is a schematic structural diagram of the stack separation unit of the present invention.

[0030] Figure 3 It is a schematic diagram of the structure of a single-piece separation unit of the present invention.

[0031] Figure 4 This is a schematic diagram of the guiding centering unit structure of the present invention.

[0032] Figure 5 It is a structural diagram of the information acquisition and transmission unit of the present invention.

[0033] Figure 6 It is a schematic structural diagram of the transition unit of the present invention.

[0034] Figure 7 Schematic diagram of the external structure of the sorting balance wheel unit of the present invention.

[0035] Figure 8 for Figure 7 Top view of .

[0036] Figure 9 Schematic diagram of the internal structure of the sorting balance wheel unit of the present invention.

[0037] Figure 10 It is a schematic diagram of the steering coordination structure of the sorting balance wheel unit of the present invention.

[0038] Figure 11 It is a structural schematic diagram of the deviation-correcting universal ball assembly of the present invention.

[0039] Figure 12 Schematic diagram of the workflow of the present invention.

[0040] Among them: 1. Stack separation unit; 2. Conveyor belt; 3. Single piece separation unit; 4. Guide centering unit; 5. Information collection and transmission unit; 6. Transition unit; 7. Sorting wheel unit; 8. Grid; 9. Slide rail; 10. Reflective photoelectric unit;

[0041] 11. First stack separation plate; 12. Second stack separation plate; 13. Third stack separation plate;

[0042] 31. Single-piece separator outer frame; 32. Separation belt unit; 33. Visual inspection camera;

[0043] 41. Guide rail; 42. Guide roller; 43. Guide motor;

[0044] 51. Camera mounting frame; 52. Information collection camera;

[0045] 61. Input end transition curved rail; 62. Transition flat rail; 63. Output end transition curved rail;

[0046] 71. Balance wheel frame; 72. Base support legs; 73. Transport assembly;

[0047] 731, transport module; 732, deviation correction module;

[0048] 7311, driver; 7312, servo motor; 7313, electric roller; 7314, steering rod; 7315, steering mounting seat;

[0049] 7321, correction base; 7322, mounting slot; 7323, universal ball. DETAILED DESCRIPTION

[0050] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0051] like Figures 1 to 12 As shown, the logistics transportation device based on the bidirectional balance wheel structure of this embodiment is provided with a stacking separation unit 1 at the input end of the logistics package, and the discharge end of the stacking separation unit 1 is connected with the feed end of the single-piece separation unit 3 through the conveying belt 2; a guide centering unit 4 is provided at the discharge end of the single-piece separation unit 3, and the package is transported into the information collection and transmission unit 5 after passing through the guide centering unit 4, and the information collection and transmission unit 5 is connected to the host computer; the discharge end of the information collection and transmission unit 5 is connected with the feed end of the transition unit 6, and at least one sorting balance wheel unit 7 is arranged at the discharge end of the transition unit 6 along the length direction of the transportation track, and grid openings 8 are provided on both sides of the sorting balance wheel unit 7, and a slide rail 9 is matched between the sorting balance wheel unit 7 and the grid opening 8, and the exit of the slide rail 9 is inclined and faces the grid opening 8; a reflective photoelectric 10 is also provided at the feed end of the sorting balance wheel unit 7.

[0052] In this embodiment, the structure of the stack separation unit 1 is: it includes a first stack separation plate 11, a second stack separation plate 12 and a third stack separation plate 13 arranged in sequence along the transport direction; the first stack separation plate 11, the second stack separation plate 12 and the third stack separation plate 13 are all tilted from low to high along the package transport direction.

[0053] In this embodiment, the structure of the single-piece separation unit 3 is: it includes a single-piece separator outer frame 31, a separation belt unit 32 is arranged inside the single-piece separator outer frame 31 along the package transportation direction, and a visual inspection camera 33 is arranged on the top of the single-piece separator outer frame 31.

[0054] In this embodiment, the separation belt unit 32 includes a plurality of small separation belt machines, which are arranged vertically and horizontally and evenly distributed; the visual inspection camera 33 detects the position of the parcels conveyed to the separation belt unit 32, and controls the separation belt unit 32 to open according to the detected parcel position information, so that the separation belt unit 32 outputs the delivered parcels at a fixed interval and in a single row toward the discharge end.

[0055] In this embodiment, the structure of the guide centering unit 4 is: it includes a guide rail 41 arranged along the transportation direction, the guide rail 41 is driven by a guide motor 43, and multiple guide rollers 42 are arranged in the running direction of the guide rail 41; the multiple guide rollers 42 are distributed in a left-right symmetrical "V" shape.

[0056] In this embodiment, the structure of the information acquisition and transmission unit 5 is as follows: it includes a camera mounting frame 51 arranged around the track along the transportation direction, and information acquisition cameras 52 are matched and arranged on the camera mounting frame 51 at the front, back, left, right, top and bottom surfaces in the direction of package movement; the information acquisition camera 52 captures and collects the package information, calculates and obtains the grid information, and uploads it to the host computer.

[0057] In this embodiment, the structure of the transition unit 6 is: it includes an input end transition curved rail 61 connected to the discharge end of the information acquisition and transmission unit 5, the discharge end of the input end transition curved rail 61 is connected to the feed end of the transition flat rail 62, the discharge end of the transition flat rail 62 is connected to the feed end of the output end transition curved rail 63, and the discharge end of the output end transition curved rail 63 is transported to the sorting balance wheel unit 7 through the track.

[0058] In this embodiment, the structure of the sorting balance wheel unit 7 is as follows: it includes a balance wheel frame 71, a base support leg 72 is installed at the bottom of the balance wheel frame 71, and a conveying assembly 73 is arranged on the top of the balance wheel frame 71; the structure of the conveying assembly 73 is as follows: it includes a conveying module 731 for changing the direction of conveying the package, and a correction module 732 is arranged on both sides of the conveying module 731.

[0059] In this embodiment, the structure of the transport module 731 is as follows: it includes a driver 7311 and a servo motor 7312, the driver 7311 is electrically connected to the electric roller 7313, the top output end of the servo motor 7312 is connected to the steering rod 7314, the rod body of the steering rod 7314 is fixedly connected to the steering mounting seat 7315, the electric roller 7313 is assembled on the top of the steering mounting seat 7315, and when the servo motor 7312 rotates, the steering mounting seat 7315 is driven to turn through the steering rod 7314 so that the steering mounting seat The electric roller 7313 on the top of 7315 turns, and the driver 7311 is energized to rotate the electric roller 7313; the structure of the correction module 732 is as follows: it includes a correction base 7321 fixedly installed on the top of the pendulum wheel frame 71, a mounting groove 7322 is provided on the top of the correction base 7321, and a universal ball 7323 is assembled inside the mounting groove 7322. When the logistics package deviates to one side during transportation, the side of the package is against the top of the universal ball 7323, and the height of the top of the universal ball 7323 is set higher than the arc top height of the electric roller 7313.

[0060] like Figure 12 As shown, the working method of the logistics transportation device based on the bidirectional balance wheel structure of this embodiment includes the following steps:

[0061] Step 1: The stacked packages are fed into the stack separation unit 1 from the input end and sequentially pass through the inclined surfaces of the first stack separation plate 11, the second stack separation plate 12, and the third stack separation plate 13 to be separated from the stack;

[0062] Step 2: After the packages emerge from the stacking separation unit 1, they are conveyed by the conveyor belt 2 to the single-piece separation unit 3. The visual inspection camera 33 in the single-piece separation unit 3 detects the position of the packages conveyed to the separation belt unit 32 and controls the separation belt unit 32 to start according to the detected package position information. The separation belt unit 32 then discharges the input packages in a single file at a fixed interval toward the discharge end.

[0063] Step 3: The packages are transported from the single-piece separation unit 3 in a single file at a fixed interval and enter the guiding and centering unit 4. When passing the guide rollers 42 arranged symmetrically on both sides of the guiding and centering unit 4, the packages are guided out in the center due to the "V" symmetrical arrangement of the guide rollers 42 on both sides;

[0064] Step 4: After passing through the guiding and centering unit 4, the package is guided to the center and enters the information collection and transmission unit 5. The information collection and transmission unit 5 collects the barcode information of the package through the information collection camera 52 and uploads it to the host computer. The host computer calculates the corresponding compartment 8 position of the package;

[0065] Step 5: The package is transmitted from the information collection and transmission unit 5, and after passing through the transition unit 6, it enters the sorting balance wheel unit 7 along the track transportation direction. At the entrance end of the sorting balance wheel unit 7, the package triggers the reflective photoelectric 10, and the sorting balance wheel unit 7 is notified that the package has entered;

[0066] Step 6: The sorting wheel unit 7 receives the position of the compartment 8 corresponding to the package obtained by the upper computer in step 4. When the package is in place, the servo motor 7312 of the sorting wheel unit 7 starts to drive the steering rod 7314. At this time, the steering mounting base 7315 fixedly connected to the steering rod 7314 drives the electric roller 7313 on its top to turn to the corresponding compartment 8, and the package enters the compartment 8 through the slide rail 9 on one side of the compartment 8.

[0067] In this embodiment, in step six, when the parcel enters the sorting balance wheel unit 7, the parcel may deviate to the side of the sorting balance wheel unit 7 due to problems such as irregular parcel packaging or machine vibration. At this time, one side of the parcel will contact the top of the universal ball 7323 in the sorting balance wheel unit 7. Since the top height of the universal ball 7323 is higher than the arc top height of the electric roller 7313, the center of gravity of the parcel will be slightly biased toward the direction of the transport module 731. At this time, the rotation of the electric roller 7313 and the rotation of the universal ball 7323 will bring the parcel back to the transport direction of the transport module 731 for continued transportation.

[0068] The device of the present invention has a reasonable structure and a high efficiency in the overall transportation process. It goes through the processes of stacked piece separation, single piece separation, guide centering, information collection, grid information determination, and sorting balance wheel steering in sequence, and finally the package is sent to the corresponding grid 8 through the slide rail 9. The entire process does not require manual participation in the dispersion and arrangement of the packages, has a high degree of automation, and greatly saves manpower and material resources.

[0069] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. Any modifications may be made within the scope of protection of the present invention.

Claims

1. A logistics transport device based on a bidirectional balance wheel structure, characterized by: A stack separation unit (1) is provided at the input end of the logistics package, and the discharge end of the stack separation unit (1) is connected to the feed end of the single piece separation unit (3) via a conveying belt (2); A guide centering unit (4) is provided at the discharge end of the single-piece separation unit (3); the package passes through the guide centering unit (4) and is transported to the information collection and transmission unit (5); the information collection and transmission unit (5) is connected to a host computer; The discharge end of the information collection and transmission unit (5) is connected to the feed end of the transition unit (6); at least one sorting pendulum unit (7) is arranged at the discharge end of the transition unit (6) along the length direction of the transport track; grid openings (8) are provided on both sides of the sorting pendulum unit (7); a slide rail (9) is matched between the sorting pendulum unit (7) and the grid opening (8); the slide rail (9) is tilted and the exit of the slide rail (9) faces the grid opening (8); A reflective photoelectric device (10) is provided at the feeding end of the sorting balance wheel unit (7); The structure of the sorting balance wheel unit (7) is as follows: it includes a balance wheel frame (71), a base support leg (72) is installed at the bottom of the balance wheel frame (71), and a conveying assembly (73) is arranged on the top of the balance wheel frame (71); the structure of the conveying assembly (73) is as follows: it includes a conveying module (731) for changing the direction of conveying packages, and a correction module (732) is arranged on both sides of the conveying module (731); The structure of the transport module (731) is as follows: it includes a driver (7311) and a servo motor (7312), the driver (7311) is electrically connected to an electric roller (7313), the top output end of the servo motor (7312) is connected to a steering rod (7314), the rod body of the steering rod (7314) is fixedly connected to a steering mounting seat (7315), and the electric roller (7313) is assembled on the top of the steering mounting seat (7315); The structure of the correction module (732) is as follows: it includes a correction base (7321) fixedly mounted on the top of the pendulum frame (71), a mounting groove (7322) is provided on the top of the correction base (7321), and a universal ball (7323) is assembled inside the mounting groove (7322). When the logistics package deviates to one side during transportation, the side of the package abuts against the top of the universal ball (7323), and the height of the top of the universal ball (7323) is set higher than the arc top height of the electric roller (7313).

2. The logistics transport device based on the bidirectional balance wheel structure according to claim 1, characterized in that: The stack separation unit (1) has a structure comprising a first stack separation plate (11), a second stack separation plate (12), and a third stack separation plate (13) arranged in sequence along the transport direction; The first stack separation plate (11), the second stack separation plate (12) and the third stack separation plate (13) are all arranged tilted from low to high along the package transport direction.

3. The logistics transport device based on the bidirectional balance wheel structure according to claim 1, characterized in that: The structure of the single-piece separator unit (3) is as follows: it includes a single-piece separator outer frame (31), a separation belt unit (32) is arranged inside the single-piece separator outer frame (31) along the package transportation direction, and a visual detection camera (33) is arranged on the top of the single-piece separator outer frame (31).

4. The logistics transport device based on the bidirectional balance wheel structure according to claim 3, characterized in that: The separation belt machine group (32) includes a plurality of small separation belt machines, which are arranged vertically and horizontally and are evenly distributed; The visual inspection camera (33) detects the position of the parcels conveyed to the separation belt unit (32), and controls the separation belt unit (32) to start according to the detected parcel position information, so that the separation belt unit (32) outputs the delivered parcels in a fixed spacing and in a single row toward the discharge end.

5. The logistics transport device based on the bidirectional balance wheel structure according to claim 1, characterized in that: The structure of the guide centering unit (4) is as follows: it comprises a guide rail (41) arranged along the transport direction, the guide rail (41) is driven by a guide motor (43), and a plurality of guide rollers (42) are arranged in the running direction of the guide rail (41); The plurality of guide rollers (42) are distributed in a bilaterally symmetrical "V" shape.

6. The logistics transport device based on the bidirectional balance wheel structure according to claim 1, characterized in that: The structure of the information acquisition and transmission unit (5) is as follows: it includes a camera mounting frame (51) arranged around a track along a transport direction, and information acquisition cameras (52) are matched and arranged on the camera mounting frame (51) at the front, rear, left, right, top and bottom surfaces of the package running direction; The information collection camera (52) captures the package information, calculates the grid information and uploads it to the host computer.

7. The logistics transport device based on the bidirectional balance wheel structure according to claim 1, characterized in that: The structure of the transition unit (6) is as follows: it includes an input end transition curved rail (61) connected to the discharge end of the information acquisition and transmission unit (5), the discharge end of the input end transition curved rail (61) is connected to the feed end of the transition flat rail (62), the discharge end of the transition flat rail (62) is connected to the feed end of the output end transition curved rail (63), and the discharge end of the output end transition curved rail (63) is transported to the sorting balance wheel unit (7) through the track.

8. The logistics transport device based on the bidirectional balance wheel structure according to claim 1, characterized in that: When the servo motor (7312) rotates, it drives the steering mounting seat (7315) to steer via the steering rod (7314), thereby steering the electric roller (7313) on the top of the steering mounting seat (7315), and the driver (7311) is energized to rotate the electric roller (7313); The driver (7311) is a bidirectional driver, and the driver (7311) is electrically connected to the PLC controller.

9. A method for operating a logistics transport device based on a bidirectional balance wheel structure, characterized in that: The following steps are involved: Step 1: The stacked packages are fed into the stack separation unit (1) from the input end, and sequentially pass through the inclined surfaces of the first stack separation plate (11), the second stack separation plate (12), and the third stack separation plate (13), and the stacked packages are separated; Step 2: After the packages come out of the stacking separation unit (1), they are conveyed to the single-piece separation unit (3) via the conveying belt (2). The visual inspection camera (33) in the single-piece separation unit (3) detects the position of the packages conveyed to the separation belt unit (32), and controls the separation belt unit (32) to start according to the detected package position information. The separation belt unit (32) outputs the input packages in a fixed spacing and in a single row toward the discharge end. Step 3: The packages are transported out of the single-piece separation unit (3) in a fixed spacing and in a single row and then enter the guiding centering unit (4). When the packages pass through the guide rollers (42) arranged symmetrically on both sides of the guiding centering unit (4), the packages are guided out in the center according to the "V"-shaped symmetrical arrangement of the guide rollers (42); Step 4: The package is guided to the centering unit (4) and then directed to the information collection and transmission unit (5). The information collection and transmission unit (5) collects the barcode information of the package through the information collection camera (52) and uploads it to the host computer. The host computer calculates the corresponding grid (8) position of the package. Step 5: The package is transmitted from the information collection and transmission unit (5), and enters the sorting balance wheel unit (7) along the track transportation direction after passing through the transition unit (6). At the entry end of the sorting balance wheel unit (7), the package triggers the reflective photoelectric (10), and the sorting balance wheel unit (7) is prompted to enter the package; Step 6: The sorting wheel unit (7) receives the position of the grid opening (8) corresponding to the package obtained by the upper computer in step 4. When the package is in place, the servo motor (7312) of the sorting wheel unit (7) starts to drive the steering rod (7314). At this time, the steering mounting seat (7315) fixedly connected to the steering rod (7314) drives the electric roller (7313) on its top to turn to the corresponding grid opening (8), and the package enters the grid opening (8) through the slide rail (9) on one side of the grid opening (8); When a parcel enters the sorting balance wheel unit (7), the parcel may deviate to the side of the sorting balance wheel unit (7) due to irregular packaging of the parcel or vibration of the machine. At this time, one side of the parcel will contact the top of the universal ball (7323) in the sorting balance wheel unit (7). Since the top height of the universal ball (7323) is higher than the arc top height of the electric roller (7313), the center of gravity of the parcel will deviate to the direction of the transport module (731). At this time, the rotation of the electric roller (7313) and the rotation of the universal ball (7323) will bring the parcel back to the transport direction of the transport module (731) for further transportation.

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