Express sorting system

Abstract

The embodiment of the invention relates to the technical field of logistics, and discloses an express sorting system which comprises a main loop line, a plurality of main line transport trolleys, a plurality of main line sorting devices, a plurality of main line sorting devices and a plurality of main line sorting devices, each branch loop line is arranged close to the main loop line and is provided with a branch line bordering section close to the main loop line; the main loop line is provided with a plurality of main line bordering sections corresponding to branch line bordering sections of the branch loop lines; at least one branch line transportation trolley is arranged on the branch loop line; and the main line transportation trolley is also used for transferring the express parcels to the branch line transportation trolley of the branch loop line at the main line bordering section for transportation. In this way, the sorting efficiency of the express parcels is improved.

Description

Technical Field

[0001] The present application relates to the field of logistics technology, and in particular to an express sorting system. Background Art

[0002] During the delivery process, express parcels need to be transferred in the transit yard. The transit yard generally has an express parcel sorting system. The loop line of the express parcel sorting system is equipped with a transport trolley and a storage box near the loop line. The trolley of the express parcel sorting system picks up express parcels at the entry port on the loop line and transports the express parcels to the storage box according to the delivery location of the express parcels, so as to sort the express parcels with the same delivery location together and realize the sorting and sorting of the express parcels.

[0003] In the express parcel sorting system, parcels need to be distributed to various terminals, sorting and transporting carts are arranged along a single loop, and terminal storage boxes are evenly distributed on the loop of the single loop. When there are a large number of terminals, the length of the logistics line is as long as hundreds of meters, and there is a problem of low sorting efficiency caused by the long logistics line.

[0004] Therefore, how to improve the sorting efficiency of the express sorting system has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the above problems, an embodiment of the present application provides an express sorting system to improve the sorting efficiency of express parcels.

[0006] According to one aspect of an embodiment of the present application, an express sorting system is provided, which includes: a main loop line, on which a plurality of main line transport carts are arranged, and the main line transport carts are used to transport express parcels; a plurality of branch loop lines, each of which is arranged close to the main loop line and has a branch line bordering section close to the main loop line; the branch line bordering sections on the main loop line corresponding to the plurality of branch loop lines have a plurality of main line bordering sections; there is at least one branch line transport cart on the branch loop line; the main line transport cart is also used to transfer the express parcels to the branch line transport cart of the branch loop line for transportation at the main line bordering section.

[0007] Preferably, the branch loop line is arranged to fit the outer ring of the main loop line; a transmission assembly is provided on the main line transport cart, and the transmission assembly is used to form a first transmission direction parallel to the ring diameter of the main loop line and pointing from the inner ring of the main loop line to the outer ring of the main loop line in the main line bordering section; the express parcels on the main line transport cart are used to move along the first transmission direction of the transmission assembly to the branch loop line cart under the transmission of the transmission assembly.

[0008] Preferably, the express sorting system also includes a plurality of main line storage boxes, which are distributed around the inner circle of the main loop line; an opening is provided on the top surface of the main line storage box, the horizontal height of the opening is lower than the horizontal height of the transmission assembly, and the distance between the opening and the transmission assembly on the horizontal plane is less than a first preset distance; the transmission assembly is also used to form a second transmission direction opposite to the transmission direction; the express parcels on the main line transport cart are used to move along the second transmission direction of the transmission assembly under the transmission of the transmission assembly, and fall through the opening into the main line storage box.

[0009] Preferably, the transmission assembly includes matching conveyor belts and conveyor members, the conveyor belt is used to form a first transmission direction under the forward drive of the transmission member, and is also used to form a second transmission direction under the reverse drive of the transmission member; or, the transmission assembly includes multiple matching conveyor belts and conveyor members, part of the conveyor belts is used to form the first transmission direction under the drive of the transmission member corresponding to the conveyor belt, and another part of the conveyor belts is used to form the second transmission direction under the drive of the transmission member corresponding to the conveyor belt.

[0010] Preferably, a transmission assembly is provided on the branch line transport trolley, and the transmission assembly of the branch line transport trolley is used to form a transmission direction consistent with the first transmission direction in the branch line bordering section.

[0011] Preferably, the horizontal height of the transmission assembly of the branch line transport trolley is lower than the horizontal height of the transmission assembly of the main line transport trolley, and the distance between the transmission assembly of the branch line transport trolley and the transmission assembly of the main line transport trolley in the horizontal plane is less than a second preset distance.

[0012] Preferably, the express sorting system also includes a plurality of branch line storage boxes, and a plurality of branch line storage boxes are arranged around the inner circle of each branch line near the branch line; the transmission component of the branch line transport trolley is used to form a transmission direction parallel to the ring diameter of the branch line and pointing from the outer circle of the branch line to the inner circle of the branch line when approaching the branch line storage box; and / or, the express sorting system also includes a plurality of branch line storage boxes, and a plurality of branch line storage boxes are arranged around the outer circle of the branch line near each branch line; the transmission component of the branch line transport trolley is used to form a transmission direction parallel to the ring diameter of the branch line and pointing from the inner circle of the branch line to the outer circle of the branch line when approaching the branch line storage box.

[0013] Preferably, the express sorting system also includes a control center, which is used to generate control signals; a main loop line and a branch loop line, both of which are formed with guide rails, the guide rails include a first supporting member and a second supporting member that match each other, and a side of the first supporting member that is away from the second supporting member is provided with a plurality of conductive grooves along the length direction of the first supporting member, and the conductive grooves are used to transmit control signals; a slider is provided at the bottom of the main line transport trolley and the branch line transport trolley, and the slider is clamped between the first supporting member and the second supporting member to form a sliding connection between the main line transport trolley or the branch line transport trolley and the guide rail; a conductive wheel embedded in the conductive groove is also provided at the bottom of the main line transport trolley and the branch line transport trolley, and the conductive wheel forms a sliding connection and an electrical connection with the conductive groove to receive the control signal on the conductive groove.

[0014] Preferably, a rack is formed on a side of the second guide member facing away from the first guide member along the length direction of the second guide member, and a gear matching with the rack is also provided at the bottom of the main line transport trolley and the branch line transport trolley.

[0015] Preferably, the slider includes a first roller and a bearing, one end of the bearing is fixed to the main line transport trolley or the branch line transport trolley, and the other end of the bearing is rotatably connected to the first roller; the first guide member and the second guide member are provided with limit strips on one side facing the main line transport trolley or the branch line transport trolley, and a gap is formed between the limit strips arranged opposite to each other on the first guide member and the second guide member; the bearing passes through the gap, and the first roller is slidably connected to a side of the first guide member close to the second guide member, and is also slidably connected to a side of the second guide member close to the first guide member; the annular surfaces of the main loop line and the branch loop line both have a certain width, and a plurality of second rollers are also provided at the bottom of the main line transport trolley and the branch line transport trolley, and the second rollers are used to roll on the annular surface.

[0016] The embodiment of the present application provides multiple main line transport carts on the main loop line, so that express parcels can be sorted by the main line transport carts; the single loop line is divided into a main loop line and multiple branch loop lines, each of which is arranged close to the main loop line and has a branch line bordering section close to the main loop line, so that the branch line bordering section on the branch loop line is used as the feed port of the branch loop line, and then the main line transport cart located at the main line bordering section and the branch line transport cart located at the branch line bordering section can be used to realize the handover of the express parcels from the main loop line to the branch loop line, so that the express parcels can be sorted in parallel between the main loop line and the multiple branch loop lines, thereby improving the sorting efficiency of the express parcels.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0019] Figure 1 A three-dimensional diagram of an express sorting system provided in an embodiment of the present application is shown;

[0020] Figure 2 A top view of the express sorting system provided in an embodiment of the present application is shown;

[0021] Figure 3 A stereogram of the main loop provided by an embodiment of the present application is shown;

[0022] Figure 4 A stereogram of a branch loop provided by an embodiment of the present application is shown;

[0023] Figure 5 The embodiment of the present application provides Figure 2 A bird's-eye view of the junction of the middle main loop and the branch loop;

[0024] Figure 6 The embodiment of the present application provides Figure 2 A three-dimensional view of the junction of the central main loop and the branch loop;

[0025] Figure 7 A three-dimensional diagram of a main line transport trolley provided in an embodiment of the present application is shown;

[0026] Figure 8 A three-dimensional diagram of a portion of a guide rail provided in an embodiment of the present application is shown;

[0027] Figure 9a A stereogram of a branch loop provided by an embodiment of the present application is shown;

[0028] Figure 9b The embodiment of the present application provides Figure 9a A magnified view of the transport trolley section of the middle branch line;

[0029] Fig.10a A three-dimensional diagram of a branch loop provided by an embodiment of the present application from another angle is shown;

[0030] Fig.10b The embodiment of the present application provides Fig.10a A magnified view of the transport trolley section of the middle branch line;

[0031] Fig.11 A top view of a single loop line provided in an embodiment of the present application is shown.

[0032] The reference numerals in the specific implementation manner are as follows:

[0033] 1. Express sorting system;

[0034] 10. Main loop line; 11. Main line transport trolley; 12. Main line bordering section; 13. Transmission component a; 131. Conveyor belt a; 14. Main line storage box; 141. Opening a;

[0035] 20. branch line; 21. branch line transport trolley; 22. branch line bordering section; 23. transmission component b; 231. conveyor belt b; 24. branch line storage box; 241. opening b;

[0036] 30. Guide rail; 31. First guide member; 311. Conductive slot; 32. Second guide member; 321. Rack;

[0037] 41. Conductive wheel; 42. Gear; 43. Slider; 431. Bearing; 432. First roller; 44. Second roller; 45. Feed port. DETAILED DESCRIPTION

[0038] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0040] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0041] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0042] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0043] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0044] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0045] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0046] The present application embodiment provides a courier sorting system, such as Figure 1-2 As shown, the express sorting system 1 includes: a main loop line 10, on which are arranged a plurality of main line transport carts 11, the main line transport carts 11 being used to transport express parcels; a plurality of branch loop lines 20, each of which is arranged close to the main loop line 10 and has a branch line bordering section 22 close to the main loop line 10; the main loop line 10 has a plurality of main line bordering sections 12 corresponding to the branch line bordering sections 22 of the plurality of branch loop lines 20; there is at least one branch line transport cart 21 on the branch loop line 20; the main line transport cart 11 is also used to transfer the express parcels to the branch line transport cart 21 of the branch loop line 20 for transportation at the main line bordering section 12.

[0047] Preferably, the branch line 20 is arranged to fit the outer ring of the main line 10. Figure 1 and Figure 2As shown, the outer side of the main loop line 10 is adjacent to a plurality of branch loop lines 20 , forming a total of 9 sets of loop lines.

[0048] A main line storage box 14 is arranged inside the main loop line 10, and branch line storage boxes 24 are arranged inside and outside the branch loop line 20; four material inlets 45 are evenly arranged on the loop line of the main loop line 10 to improve material feeding efficiency.

[0049] Figure 2 The solid arrows on the main loop line 10 are used to indicate the running tracks formed by the multiple main line transport vehicles 11 on the main loop line 10. Figure 2 The solid arrows on the middle branch loop line 20 are used to indicate the running tracks formed by the multiple branch line transport vehicles 21 on the branch loop line 20 .

[0050] The mainline transport trolley 11 receives express parcels when passing through the entry port 45. In actual use, the express sorting system 1 provided in the embodiment of the present application can have a receiving capacity of up to 10,800 pieces / hour for express parcels.

[0051] Each entry port 45 is equipped with a code scanning device. After the express parcel is scanned at the entry port 45 , it is transported by the main line transport trolley 11 , and the express sorting system 1 records the identification information of the main line transport trolley 11 .

[0052] like Figure 3 The outline size of the main loop line 10 shown is 28.7mx 6.9m, and a total of 64 main line storage boxes 14 can be arranged. The circumference of the main loop line 10 is 66.4m, and there are 40 transport vehicle groups, each with 3 main line transport vehicles 11.

[0053] like Figure 4 There are 8 sets of branch line loops 20 shown, with an outline size of 14.5m x 3.9m. Each set is equipped with 72 branch line storage boxes 24, with a loop line circumference of 33.2m. There are 8 transport vehicle groups, each with 2 branch line transport vehicles 21.

[0054] Among them, the branch loop line 20 can be arranged on the outside of the main loop line 10, and can also be arranged on the inside of the main loop line 10, that is, the branch line bordering section 22 of the branch loop line 20 can also fit the inner circle of the main loop line 10; the branch loop line 20 and the main loop line 10 can be separated, so that for factories with non-square or irregular layouts, the branch loop lines 20 of the express sorting system 1 can be flexibly arranged to meet the needs of actual use.

[0055] The express sorting system 1 provided in the embodiment of the present application uses a tree-like branching structure to design multiple loop lines. The main loop line 10 and the branch loop line 20 are preferably set to nine sets of loop lines operating in parallel, which can greatly improve the express parcel sorting efficiency.

[0056] See also Figure 3The express sorting system 1 also includes a plurality of main line storage boxes 14, which are distributed around the inner circle of the main loop line 10; an opening a141 is provided on the top surface of the main line storage box 14, and the horizontal height of the opening a141 is lower than the horizontal height of the transmission component a13, and the distance between the opening a141 and the transmission component a13 on the horizontal plane is less than the first preset distance.

[0057] See also Figure 4 The express sorting system 1 also includes a plurality of branch line storage boxes 24, and a plurality of branch line storage boxes 24 are arranged around the inner circle of each branch line 20 near the branch line 20; further, a plurality of branch line storage boxes 24 are also arranged around the outer circle of the branch line 20 near each branch line 20; similarly, an opening b241 is provided on the top surface of the branch line storage box 24, and the horizontal height of the opening b241 is lower than the horizontal height of the transmission component b23, and the distance between the opening b241 and the transmission component b23 on the horizontal plane is also less than the first preset distance, for example, 10 cm.

[0058] like Figure 7 As shown, the transmission component a13 on the main line transport trolley 11 includes a transmission member and a conveyor belt a131. As shown in FIG9 , the transmission component b23 on the branch line transport trolley 21 includes a transmission member and a conveyor belt b231. That is, the trolleys on the main line transport trolley 11 and the branch line transport trolley 21 can be arranged with matching motors and belts. The express parcel is placed on the belt, and when the belt is running, the express parcel is put into the storage box to complete the sorting. Among them, the belt is driven by a motor to realize forward and reverse transmission. Specifically, the motor can be a bidirectional drive motor to realize the forward and reverse transmission of the express parcel on the trolley, or the trolley can be provided with multiple matching unidirectional rotating motors and belts, and different motors are arranged in forward and reverse directions to realize the forward and reverse transmission of the express parcel on the trolley.

[0059] Specifically, see Figure 2 and Figure 5 The transmission component a13 is used to form a first transmission direction parallel to the ring diameter of the main loop line 10 and pointing from the inner circle of the main loop line 10 to the outer circle of the main loop line 10 at the main line bordering section 12; the express parcels on the main line transport cart 11 are used to move along the first transmission direction of the transmission component a13 to the branch line transport cart 21 under the transmission of the transmission component a13; the transmission component a13 is also used to form a second transmission direction parallel to the ring diameter of the main loop line 10 and pointing from the outer circle of the main loop line 10 to the inner circle of the main loop line 10 at the non-main line bordering section 12 on the main loop line 10; the express parcels on the main line transport cart 11 are used to move along the second transmission direction of the transmission component a13 to the main line storage box 14 under the transmission of the transmission component a13.

[0060] Furthermore, a transmission assembly is provided on the branch line transport trolley 21, and the transmission assembly of the branch line transport trolley 21 is used to form a transmission direction consistent with the first transmission direction in the branch line bordering section 22. The transmission assembly b23 of the branch line transport trolley 21 is used to form a transmission direction parallel to the ring diameter of the branch line 20 and pointing from the outer circle of the branch line 20 to the inner circle of the branch line 20 when approaching the branch line storage box 24; it can also be that the express sorting system 1 also includes a plurality of branch line storage boxes 24, and a plurality of branch line storage boxes 24 are arranged around the outer circle of the branch line 20 near each branch line 20; the transmission assembly of the branch line transport trolley 21 is used to form a transmission direction parallel to the ring diameter of the branch line 20 and pointing from the inner circle of the branch line 20 to the outer circle of the branch line 20 when approaching the branch line storage box 24, so as to realize the transportation of express parcels to the branch line storage boxes 24 arranged on both sides of the branch line 20.

[0061] Figure 2 The dotted arrow in the figure is used to indicate the first transmission direction formed by the main line transport trolley 11 at the current position. Figure 5 The dotted arrow on the middle main loop line 10 is used to indicate the second transmission direction formed by the main line transport vehicle 11 at the current position. Figure 5 The solid arrow on the middle main loop line 10 is used to indicate the first transmission direction formed by the main line transport vehicle 11 at the current position. Figure 5 The solid arrow in the branch line junction section is used to indicate the transport direction parallel to the first transport direction formed by the branch line transport vehicle 21 when the branch line is in junction; Figure 5 A pair of opposite solid arrows and dotted arrows adjacent to each other are used to indicate the transmission direction that the branch transport vehicle 21 can form when transferring the express parcel to the branch storage box 24.

[0062] Each set of branch loop lines 20 is partially connected to a part of the main loop line 10, and the formed branch line connecting section 22 is used as the "feed port" of the branch loop line 20. Due to the design of the trolley (main line transport trolley 11 or branch line transport trolley 21) and the guide rails on the main loop line 10 or the branch loop line 20, the express sorting system 1 can accurately control the running speed and position of the trolley. At the junction, the express sorting system 1 can control the branch line transport trolley 21 to align with the main line transport trolley 11 and run at the same speed. The two vehicles drive the belts at the same time, and the express parcels are transferred from the main loop line 10 to the trolley on the branch loop line 20. The relay is completed during the operation, and the express parcels are then transported to the corresponding storage boxes by the trolley on the branch loop line 20. For details, please refer to Figure 6 At the junction, the belts of the main line transport trolley 11 and the branch line transport trolley 21 are parallel in transmission direction and have the same transmission speed, so that the express parcel can be transported along Figure 6 Move in the direction of the dotted line.

[0063] Preferably, if Figure 6As shown, the horizontal height of the transmission component b23 of the branch line transport trolley 21 is lower than the horizontal height of the transmission component a13 of the main line transport trolley 11, and the distance between the transmission component b23 of the branch line transport trolley 21 and the transmission component a13 of the main line transport trolley 11 in the horizontal plane is less than a second preset distance, for example, 6 cm, to prevent the express parcel from falling and being damaged.

[0064] At the junction, in addition to belt transmission to realize the transfer of express parcels, the transfer of express parcels can also be realized by means of mechanical arms, side flip plates, springs, etc. The express parcel can slide from the side flip plates of the main line transport trolley 11 to the branch line transport trolley 21. The main line transport trolley 11 can also be provided with springs and blocking blocks, and the blocking blocks are quickly released, and the express parcel is bounced onto the branch line transport trolley 21 by the springs.

[0065] It should be noted that the first transmission direction and the second transmission direction in the embodiment of the present application are directions relative to the inner circle and outer circle of the loop at the current position of the car. Therefore, during the movement of the car, its first transmission direction and second transmission direction will change in the world system coordinates.

[0066] To achieve independent control of the trolley, refer to Figure 7 to Figure 10b The design of the trolley and the guide rail is as follows:

[0067] Preferably, the express sorting system 1 further includes a control center, which is used to generate a control signal; a main loop line 10 and a branch loop line 20, both of which are formed with a guide rail 30, the guide rail 30 includes a first guide member 31 and a second guide member 32 that match each other, and a first guide member 31 is provided with a plurality of conductive grooves 311 along the length direction of the first guide member 31 on a side away from the second guide member 32, and the conductive grooves 311 are used to transmit control signals; a slider 43 is provided at the bottom of the main line transport trolley 11 and the branch line transport trolley 21, and the slider 43 is clamped It is connected between the first supporting member 31 and the second supporting member 32, and is used to form a sliding connection between the main line transport trolley 11 or the branch line transport trolley 21 and the guide rail 30; the bottom of the main line transport trolley 11 and the branch line transport trolley 21 is also provided with a conductive wheel 41 embedded in the conductive groove 311, and the conductive wheel 41 forms a sliding connection and an electrical connection with the conductive groove 311, and is used to receive the control signal on the conductive groove 311, so as to realize the individual control of each trolley through the cooperation of the conductive groove 311 and the conductive wheel 41, and at the same time, the conductive groove 311 can also provide power for the trolley.

[0068] The express sorting system 1 divides the entire sorting line into a main loop line 10 and eight branch loop lines 20. The nine loops form a system. When a single car fails, it only needs to move the failed car away without causing the entire line to stop.

[0069] Preferably, a rack 321 is formed on a side of the second guide member 32 facing away from the first guide member 31 along the length direction of the second guide member 32, and a gear 42 matching the rack 321 is also provided at the bottom of the main line transport trolley 11 and the branch line transport trolley 21 to achieve fine control of the speed and position of the trolley movement.

[0070] Preferably, the slider 43 includes a first roller 432 and a bearing 431, one end of the bearing 431 is fixed to the main line transport trolley 11 or the branch line transport trolley 21, and the other end of the bearing 431 is rotatably connected to the first roller 432; the first guide member 31 and the second guide member 32 are provided with limit strips facing the main line transport trolley 11 or the branch line transport trolley 21, and a gap is formed on the limit strips arranged opposite to each other on the first guide member 31 and the second guide member 32; the bearing 431 passes through the gap, and the first roller 432 The wheel 432 is slidably connected to a side of the first guide member 31 close to the second guide member 32, and is also slidably connected to a side of the second guide member 32 close to the first guide member 31; the ring surfaces of the main loop line 10 and the branch loop line 20 both have a certain width, and a plurality of second rollers 44 are also provided at the bottom of the main line transport trolley 11 and the branch line transport trolley 21. The second rollers 44 are used to roll on the ring surfaces to limit the trolley through the limit strips, and the stability of the loop line supporting the trolley is improved by the second rollers 44.

[0071] In order to provide a more detailed description of the express sorting system 1 in the embodiment of the present application, the embodiment of the present application also provides a top view of a single loop line used in traditional logistics sorting. Specifically, refer to Fig.11 , all the carts on the traditional logistics sorting line run on a single track, Fig.11 The solid arrow in the middle is used to indicate the running tracks of multiple trolleys. The trolleys are connected in series through mechanical connections. The trolleys are densely distributed and arranged (like the links of a chain). They cannot be controlled individually. The number of trolleys is large and the cost is high. In the embodiment of the present application, each trolley is controlled individually, and the servo motor of the trolley drives the gear 42 to move.

[0072] Furthermore, express parcels can be divided into high-frequency and general categories according to logistics conditions, and parcels with high frequency of delivery destinations are high-frequency parcels. Each delivery destination corresponds to a storage box, and the express sorting system 1 records the locations of all storage boxes.

[0073] The main line storage box 14 is used as a high-frequency parcel storage box, which is arranged inside the main loop line 10 and transported to the corresponding storage box position by the main line transport trolley 11 for direct sorting. The main loop line is only 66.4M long, with 120 transport trolleys, and the dense arrangement allows high-frequency parcels to be sorted very quickly.

[0074] The branch line storage box 24 is used as a general parcel storage box, which is arranged on each branch line 20. The cart on the main line 10 transports the express parcel to the corresponding branch line 20, ferries to the branch line 20, and then is transported to the corresponding storage box by the cart on the branch line 20 to complete sorting.

[0075] Each branch line has 16 transport vehicles, totaling 128 vehicles, so the overall transport capacity of branch line 20 is higher than that of main line 10. In addition, high-frequency packages have been sorted on main line 10, so the transport capacity of branch line 20 is relatively redundant, and congestion of main line 10 will not occur.

[0076] There are 40 transport vehicle groups on the main loop 10, with 3 vehicles per group, a total of 120 vehicles; there are 8 transport vehicle groups on each branch loop 20, with 2 vehicles per group, a total of 16 vehicles. The transport vehicles are transported along their respective loops. The main loop 10 and 8 sets of branch loops 20 form 9 sets of internal circulation routes, working in coordination, thereby greatly improving the sorting efficiency.

[0077] like Fig.11 The traditional single-loop sorting line shown is calculated based on 640 storage boxes, with a total length of 384 meters, an average delivery distance of 192 meters per package (384 meters / 2), and 922 sets of carts. Each package is transported on the single loop line, and the longest delivery distance of the package can reach 384 meters. In addition, because there is only a single loop line, each package is circulated indiscriminately, resulting in low transmission efficiency.

[0078] In the embodiment of the present application, the total length of the whole sorting line is 332m, the total number of storage boxes is 640, and a tree-like branching structure is used. The main loop line 10 and eight sets of branch loop lines 20 operate in parallel, and the parcel delivery distance is greatly shortened. The average delivery distance of each parcel is 48.1m (64 / 640*66.4 / 2+72*8 / 640*(66.4+33.2) / 2), and there are 248 sets of carts (40*3+8*8*2). The longest parcel delivery distance is only 99.6m (66.4+33.2).

[0079] Compared with the traditional single-loop sorting line, the express sorting system 1 provided in the embodiment of the present application reduces the average delivery distance of each package by 75%, the line length by 14%, and the number of carts by 68%, thereby greatly improving the sorting efficiency. At the same time, the number of carts is greatly reduced, which not only saves equipment investment costs, but also greatly reduces operating energy consumption and saves site space.

[0080] The embodiment of the present application provides a plurality of main line transport carts 11 on the main loop line 10, so that express parcels can be sorted by the main line transport carts 11; the single loop line is divided into a main loop line 10 and a plurality of branch loop lines 20, each of the branch loop lines 20 is arranged close to the main loop line 10, and has a branch line bordering section 22 close to the main loop line 10, so that the branch line bordering section 22 on the branch loop line 20 is used as the feed port of the branch loop line 20, and then the express parcels can be handed over from the main loop line 10 to the branch loop line 20 by the main line transport cart 11 located at the main line bordering section 12 and the branch line transport cart 21 located at the branch line bordering section 22, so that the express parcels can be sorted in parallel between the main loop line 10 and the plurality of branch loop lines 20, thereby improving the sorting efficiency of the express parcels.

[0081] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A courier sorting system, characterized in that: The express sorting system comprises: The main loop line is provided with a plurality of main line transport trolleys for transporting express parcels; A plurality of branch lines, each of which is arranged close to the main line and has a branch line bordering section close to the main line; The branch line bordering sections on the main loop corresponding to the plurality of branch loops have a plurality of main line bordering sections; There is at least one branch line transport trolley on the branch loop line; The main line transport vehicle is also used to transfer the express parcels to the branch line transport vehicle of the branch loop line for transportation at the main line bordering section.

2. The express sorting system according to claim 1, characterized in that: The branch loop is arranged to fit the outer circle of the main loop; The main line transport trolley is provided with a transmission assembly, and the transmission assembly is used to form a first transmission direction parallel to the ring diameter of the main loop line and pointing from the inner ring of the main loop line to the outer ring of the main loop line at the main line bordering section; The express parcels on the main line transport trolley are used to move to the branch line trolley along the first transmission direction of the transmission assembly under the transmission of the transmission assembly.

3. The express sorting system according to claim 2, characterized in that: The express sorting system further comprises a plurality of main line storage boxes, wherein the plurality of main line storage boxes are distributed around the inner circle of the main loop line; An opening is provided on the top surface of the main line storage box, the horizontal height of the opening is lower than the horizontal height of the transmission assembly, and the distance between the opening and the transmission assembly on the horizontal plane is less than a first preset distance; The transmission assembly is also used to form a second transmission direction opposite to the transmission direction; The express parcels on the main line transport trolley are used to move along the second transmission direction of the transmission assembly under the transmission of the transmission assembly, and pass through the opening and fall into the main line storage box.

4. The express sorting system according to claim 3, characterized in that: The transmission assembly includes a matching conveyor belt and a conveyor member, wherein the conveyor belt is used to form the first transmission direction under the positive drive of the transmission member, and is also used to form the second transmission direction under the reverse drive of the transmission member; Alternatively, the transmission assembly includes a plurality of matching conveyor belts and conveying members, part of the conveyor belts being used to form the first transmission direction driven by the transmission members corresponding to the conveyor belts, and another part of the conveyor belts being used to form the second transmission direction driven by the transmission members corresponding to the conveyor belts.

5. The express sorting system according to claim 2, characterized in that: The transmission assembly is provided on the branch line transport trolley, and the transmission assembly of the branch line transport trolley is used to form a transmission direction consistent with the first transmission direction in the branch line bordering section.

6. The express sorting system according to claim 5, characterized in that: The horizontal height of the transmission assembly of the branch line transport trolley is lower than the horizontal height of the transmission assembly of the main line transport trolley, and the distance between the transmission assembly of the branch line transport trolley and the transmission assembly of the main line transport trolley in the horizontal plane is less than a second preset distance.

7. The express sorting system according to claim 5, characterized in that: The express sorting system further comprises a plurality of branch line storage boxes, wherein a plurality of branch line storage boxes are arranged around the inner circle of the branch line near each branch line; the transmission assembly of the branch line transport trolley is used to form a transmission direction parallel to the ring diameter of the branch line and pointing from the outer circle of the branch line to the inner circle of the branch line when approaching the branch line storage box; and / or, The express sorting system also includes a plurality of branch line storage boxes, and a plurality of branch line storage boxes are arranged around the outer circle of the branch line near each branch line; the transmission assembly of the branch line transport trolley is used to form a transmission direction parallel to the ring diameter of the branch line and pointing from the inner circle of the branch line to the outer circle of the branch line when approaching the branch line storage box.

8. The express sorting system according to claim 1, characterized in that: The express sorting system further includes a control center, which is used to generate a control signal; The main loop line and the branch loop line are both formed with guide rails, the guide rails include a first guide member and a second guide member that match each other, a side of the first guide member that is away from the second guide member is provided with a plurality of conductive grooves along the length direction of the first guide member, the conductive grooves are used to transmit the control signal; The bottom of the main line transport trolley and the branch line transport trolley are both provided with a slider, and the slider is clamped between the first bearing guide and the second bearing guide to form a sliding connection between the main line transport trolley or the branch line transport trolley and the guide rail; The bottom of the main line transport trolley and the branch line transport trolley is also provided with a conductive wheel embedded in the conductive slot, and the conductive wheel forms a sliding connection and an electrical connection with the conductive slot for receiving a control signal on the conductive slot.

9. The express sorting system according to claim 8, characterized in that: A rack is formed on one side of the second guide member that faces away from the first guide member along the length direction of the second guide member, and a gear matched with the rack is also provided at the bottom of the main line transport trolley and the branch line transport trolley.

10. The express sorting system according to claim 8, characterized in that: The slider includes a first roller and a bearing, one end of the bearing is fixed to the main line transport trolley or the branch line transport trolley, and the other end of the bearing is rotatably connected to the first roller; The first guide member and the second guide member are provided with limiting strips on one side facing the main line transport trolley or the branch line transport trolley, and a gap is formed between the limiting strips provided on the first guide member and the second guide member; The bearing passes through the gap, the first roller is slidably connected to a side of the first guide member close to the second guide member, and is also slidably connected to a side of the second guide member close to the first guide member; The ring surfaces of the main loop line and the branch loop line both have a certain width, and a plurality of second rollers are provided at the bottom of the main line transport trolley and the branch line transport trolley, and the second rollers are used for rolling on the ring surfaces.

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