A kind of express sorting line body, express sorting system and sorting method

Abstract

The present application relates to a kind of express sorting line body, express sorting system and sorting method.The express sorting line body includes line body and reset track mechanism and upper package track mechanism sequentially arranged on line body along the transport direction of line body;Reset track mechanism includes sequentially arranged outer guide rail and outer rail guide along the transport direction of line body;The downstream end of outer guide rail is inclined towards the inner side of line body and corresponds with the upstream end of outer rail guide;The downstream of outer guide rail can be rotated around the upstream connecting point of outer guide rail and is bent towards the inner side of line body to make outer guide rail present at least one arc;Outer guide rail includes at least two parallel and spaced apart partitions, and buffer pad is arranged between adjacent partitions.The beneficial effect is that the curved outer guide rail can guide the pusher to pass through the outer rail guide and accurately enter the inner limit position.Outer guide rail includes at least two partitions, and buffer pad is arranged between adjacent partitions to reduce vibration and noise, and avoid fracture failure at the connecting point.

Description

Technical Field

[0001] This invention relates to the field of express sorting technology, and in particular to an express sorting line, an express sorting system, and a sorting method. Background Technology

[0002] The express sorting system includes a production line and express sorting vehicles that operate along the production line. The express sorting vehicles sort express packages that are on different routes.

[0003] The express sorting vehicle includes a sorting platform for receiving and transporting express packages and a mechanism for driving the sorting platform to transport the packages. When the actuating element of the mechanism moves along the width of the line, sequentially positioned at the inner limit position, inner area position, centering position, outer area position, and outer limit position, it outputs driving torque to the sorting platform to drive the platform and transport the packages to the express sorting mechanism.

[0004] When the express sorting system is powered on and initialized, the actuating component is in the inner limit position.

[0005] After startup, the express sorting vehicle moves along the length of the transport line. The actuating component can move sequentially from the inner limit position and the inner area position to the center position. During this process, the actuating component drives the sorting platform to operate, and the sorting platform gradually moves the express to the middle of the sorting platform, so as to meet the travel requirements of the sorting platform to move the express to both sides in the subsequent sorting process, so as to achieve bidirectional sorting.

[0006] When the express sorting vehicle continues to move along the length of the transport line and does not participate in sorting and unpacking, the moving part is always in the center position; or, when the express sorting vehicle participates in sorting and unpacking, the moving part of the express sorting vehicle moves from the center position to the inner limit position or the outer limit position, and the sorting platform drives the express to move to both sides to achieve bidirectional sorting.

[0007] After the express sorting vehicle participates in sorting and unpacking, and the moving part of the express sorting vehicle is located at the outer limit position and continues to participate in unpacking, the moving part can move from the outer limit position to the inner limit position again.

[0008] To guide the actuating component from its outer limit position to its inner limit position, an outer guide rail and an outer rail guide are sequentially installed along the transport direction of the line. The outer guide rail is a plate inclined along the length of the line, with fixed points on the line near both ends. The end of the outer guide rail closest to the outer rail guide is inclined inward towards the line, forming a break zone between the outer guide rail and the outer rail guide, connecting to the center position. The side of the outer rail guide away from the outer guide rail connects to the inner limit position. The outer guide rail guides the actuating component past the outer rail guide to enter the inner limit position.

[0009] The express sorting system consists of multiple sorting carts operating simultaneously. Since the actuating components and outer guide rails are generally made of metal, which is relatively hard, the actuating components collide with the outer guide rails as they move along the sidewalls, generating significant noise. Furthermore, the outer guide rails must continuously withstand the impact forces applied by different actuating components. The fixed points of the outer guide rails near the outer guide components bear the impact force for a relatively long time, making them prone to breakage during use. During the collisions, the actuating components and even the internal mechanisms are easily damaged. Additionally, when the express delivery cart moves too slowly and lacks sufficient inertia, or when the friction between the actuating components and the outer guide rails is high, the actuating components can easily slip into the disconnect zone and enter the centering position, preventing proper package loading. Summary of the Invention

[0010] (a) Technical problems to be solved

[0011] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an express sorting line, an express sorting system, and a sorting method, which solves the technical problems of the prior art transportation system, such as the noise caused by the mutual collision of the actuating parts moving along the side wall of the outer guide rail when the express sorting vehicle finishes sorting and is repacked on the sorting platform; the technical problems of the outer guide rail continuously bearing the impact force applied by different actuating parts, and the relatively long time that the fixed point of the outer guide rail near the outer guide part bears the impact force, which is prone to breakage during use; and the technical problems of the actuating parts and even the mechanism being easily damaged during the mutual collision process; and the technical problems of the actuating parts of the express transport vehicle easily slipping into the disconnection zone and entering the centering position when the express transport vehicle moves too slowly and has insufficient inertia or when the friction between the actuating parts and the outer guide rail is too large, resulting in the inability to properly load packages.

[0012] (II) Technical Solution

[0013] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0014] In a first aspect, embodiments of the present invention provide an express sorting line, including a line and a reset track mechanism and an upper packing track mechanism arranged sequentially on the line along the transport direction of the line;

[0015] The reset track mechanism includes an outer guide track and an outer rail guide member arranged sequentially along the transport direction of the line; the downstream end of the outer guide track is inclined toward the inner side of the line and corresponds to the upstream end of the outer rail guide member; the upstream end of the outer guide track is fixedly connected to the line; the downstream end of the outer guide track can rotate around the upstream connection point of the outer guide track and bend toward the inner side of the line so that the outer guide track has at least one arc; the outer guide track includes at least two parallel spaced plates, and a buffer pad is provided between adjacent plates.

[0016] The upper track mechanism includes an inner limit track located inside the outer track guide;

[0017] The line is used to allow the actuating component of the express sorting vehicle to move along the length direction, and the actuating component can switch between the outer limit position, the outer area position, the centering position, the inner area position and the inner limit position, which are set sequentially from the outside to the inside in the width direction of the line.

[0018] The actuating element located at the outer limit position can be guided by the curved outer guide rail to pass over the outer rail guide and enter the inner limit position outside the inner limit rail.

[0019] According to the present invention, a connector is fixedly provided on the downstream side wall of the outer guide rail, and a vertically oriented through hole is opened on the connector. A vertical rotating shaft is inserted into the through hole, and the through hole and the vertical rotating shaft are clearance-fitted. The vertical rotating shaft is fixed on the line body.

[0020] According to the present invention, it further includes a bending adjustment component; the bending adjustment component includes a fixing plate and a push rod that passes through the fixing plate and is capable of horizontally moving relative to the fixing plate;

[0021] When the push rod moves horizontally relative to the fixed plate, the end of the push rod can abut against the downstream outer wall of the outer guide rail and push the outer guide rail to bend.

[0022] According to the present invention, a horizontal threaded hole is provided on the fixing plate, and the push rod is a threaded rod that passes through and is threadedly connected to the horizontal threaded hole; or, a horizontal through hole is provided on the fixing plate, and a nut coaxial with the horizontal through hole is fixedly connected to the fixing plate, and the push rod is a threaded rod that passes through the nut and the horizontal through hole and is threadedly connected to the nut.

[0023] According to the present invention, the upper track mechanism further includes an inner guide track located outside the inner limit track and extending along the length direction of the line body, the upstream end of the inner guide track being rotatably connected to an inner rail guide member; the inner rail guide member is rotatably switchable between an inner rail change position and an inner rail compensation position.

[0024] When the inner rail guide is located at the inner rail change position, an inner rail break zone is formed between the downstream ends of the inner rail guide and the outer rail guide. The actuating member located at the inner limit position can be guided by the inner rail guide and enter the inner area position outside the inner guide rail through the inner rail break zone.

[0025] When the inner rail guide is located at the inner rail compensation position, the inner rail disconnection area between the inner rail guide and the downstream end of the outer rail guide is closed, and the actuating member located at the inner limit position continues to enter the inner limit position between the inner guide rail and the inner limit rail.

[0026] According to the present invention, it also includes a collection track mechanism and a sorting track mechanism;

[0027] The reset track mechanism, the packing track mechanism, the collection track mechanism, and the sorting track mechanism are sequentially arranged on the line along the transport direction of the line and form a closed loop;

[0028] The gathering track mechanism can guide the actuating member from the inner region position to the centering position, and can guide the actuating member from the inner limit position to continue into the inner limit position;

[0029] The sorting track mechanism can guide the actuating element from the centering position to the inner limit position or the outer limit position, and can guide the actuating element from the inner limit position to continue into the inner limit position.

[0030] According to the present invention, the upper rail mechanism further includes an outer centering rail extending along the length direction of the line body, the outer centering rail being located outside the outer rail guide;

[0031] The actuating element located at the centering position can continue to enter the centering position formed inside the outer centering track from the outer rail break zone formed by the downstream end of the outer guide track and the outer side of the upstream end of the outer rail guide.

[0032] Secondly, the present invention also provides an express sorting system, including the express sorting line and an express sorting vehicle capable of moving along the length of the line.

[0033] The express sorting vehicle includes a sorting platform and a mechanism; the actuating component is mounted on the mechanism, and the mechanism is connected to and drives the sorting platform to operate.

[0034] When the actuating element moves along the outer guide rail and passes the outer guide rail to enter the inner limit position, the mechanism can drive the sorting platform to one side to receive express packages.

[0035] The upper packing track mechanism can guide the actuating component to move to the centering position, so that the sorting platform can drive the express delivery to the center of the sorting platform.

[0036] According to the present invention, a package feeding station located on one side of the line body is also included, the package feeding station corresponding to the upstream end of the inner limit track, for conveying express packages to one side of the sorting platform when the actuating member is located at the inner limit position.

[0037] Thirdly, the present invention also provides a sorting method for the express sorting system described above, characterized by comprising the following steps:

[0038] S1: The downstream of the outer guide rail rotates around the upstream connection point of the outer guide rail and bends toward the inside of the line body;

[0039] S2: When the express sorting vehicle has participated in sorting and the actuating component is located at the outer limit position, the actuating component moves along the length direction of the line until it abuts the upstream side wall of the outer guide rail. Then, guided by the downstream side wall of the curved outer guide rail, it passes the outer rail guide component and enters the inner limit position outside the inner limit rail, so that the sorting platform of the express sorting vehicle can accept express packages again.

[0040] S3: The actuating element located at the inner limit position can be guided into the inner area position by the upper package track mechanism, and the actuating element drives the sorting platform to move the express delivery towards the center of the sorting platform;

[0041] S4: The actuating element located in the inner area can be guided by the collecting track mechanism to enter the centering position, and the actuating element drives the sorting platform to move the express delivery to the center of the sorting platform;

[0042] S5: The actuating element located at the center position can be guided by the sorting track mechanism to enter the inner limit position or the outer limit position. The actuating element drives the sorting platform to move the express delivery to both ends of the sorting platform to achieve bidirectional sorting.

[0043] S6: Repeat steps S2-S5.

[0044] (III) Beneficial Effects

[0045] The beneficial effects of this invention are as follows: The express sorting line provided by this invention includes an outer guide rail and an outer rail guide member arranged along the transport direction of the line. The curved outer guide rail increases the angle between the tangent of the downstream sidewall of the outer guide rail and the length direction of the line, guiding the agitator to pass over the outer rail guide member under inertia and accurately enter the inner limit position outside the inner limit rail, so that one side of the sorting platform of the express sorting vehicle can receive the express package. This avoids the situation where, when the agitator moves along the inner sidewall of the straight outer guide rail to the downstream of the outer guide rail, the express sorting vehicle's movement speed is too slow, resulting in insufficient inertia or excessive friction between the agitator and the outer guide rail, causing the agitator to slip into the disconnection zone and enter the centering position, preventing normal package loading.

[0046] Meanwhile, the outer guide rail is configured with at least two parallel, spaced-apart plates, and buffer pads are placed between adjacent plates. This allows the impact force between the actuating component and the outer guide rail to be absorbed by the deformation of the buffer pads when the component moves along the sidewall of the outer guide rail, achieving shock absorption and noise reduction. It also reduces the impact force between the component and the outer guide rail, preventing damage to both. Furthermore, it reduces the stress at the two connection points between the outer guide rail and the line body, preventing breakage at these points. It should be noted that in the multi-layered outer guide rail structure, after being impacted by the actuating component, the stress on each plate or buffer pad gradually decreases from the side closest to the actuating component to the side furthest away. The sidewall of the outer guide rail furthest from the actuating component experiences the least stress and deformation, thus minimizing the stress on the two connection points on that side and preventing breakage at these points.

[0047] Furthermore, the downstream end of the outer guide rail can rotate around its upstream connection point and bend inwards towards the line. This allows the downstream end of the outer guide rail to rotate after being impacted by the actuating element, reducing some of the impact force directly acting on the downstream connection point and preventing deformation and cracking at that point. The bent outer guide rail can also absorb some of the impact force when subjected to the actuating element, preventing excessive stress on the two connection points of the outer guide rail and thus reducing noise caused by contact with the actuating element.

[0048] In addition, since express sorting vehicles have various operating speeds and corresponding inertia, the outer guide rail is set with at least one arc. This allows for the provision of different arcs of the outer guide rail for express sorting vehicles with different operating speeds, so as to better guide express sorting vehicles with different inertia into the inner limit position. Attached Figure Description

[0049] Figure 1 This is a three-dimensional schematic diagram of the express sorting line of the present invention (only one express transport vehicle is shown);

[0050] Figure 2 for Figure 1 A partial schematic diagram;

[0051] Figure 3 for Figure 1 A 3D diagram of a parcel sorting vehicle in China;

[0052] Figure 4 This is a 3D schematic diagram of a courier transportation line, excluding courier sorting vehicles.

[0053] Figure 5 for Figure 4 A partial schematic diagram;

[0054] Figure 6 for Figure 5 A partial schematic diagram;

[0055] Figure 7 for Figure 4 A partial top-view diagram;

[0056] Figure 8 A three-dimensional schematic diagram of the external guide rail;

[0057] Figure 9 This is a three-dimensional schematic diagram of the express sorting line (showing multiple express transport vehicles) of the express sorting system of the present invention;

[0058] Figure 10 This is a schematic diagram showing the position of the toggle switch;

[0059] Figure 11 A top view of a courier sorting line;

[0060] Figure 12 A top view of a courier sorting line;

[0061] Figure 13 A top view of a courier sorting line;

[0062] Figure 14 This is a schematic diagram of the sorting track mechanism;

[0063] Figure 15 This is a schematic diagram of the sorting track mechanism;

[0064] Figure 16 This is a schematic diagram of the track reset mechanism;

[0065] Figure 17 for Figure 11 A magnified view of a portion of point X1 in the middle;

[0066] Figure 18 for Figure 11 A magnified view of the area at point X2 in the middle;

[0067] Figure 19for Figure 12 A magnified view of the area at point X4 in the middle;

[0068] Figure 20 for Figure 13 A magnified view of a portion of point X7 in the middle;

[0069] Figure 21 for Figure 12 and Figure 13 Enlarged view of parts X5 and X8 in the middle;

[0070] Figure 22 for Figure 12 and Figure 13 Enlarged view of parts X6 and X9.

[0071] [Explanation of Labels in the Attached Images]

[0072] 1: Line body;

[0073] 2: Express sorting vehicle; 21: Sorting platform; 22: Mechanism; 221: Actuating component; 23: Frame;

[0074] 3: Sorting track mechanism; 31: Sorting track unit; 311: Main track; 312: Sorting track; 313: Main track guide; P: Main track disconnection zone; F: Main track compensation position; G: Main track change position; H: Main track channel;

[0075] 4: Reset track mechanism; 41: Outer guide track; 4111: Divider plate; 4112: Buffer pad; 4113: Adjusting component; 41131: Fixing plate; 41132: Push rod; 4114: Vertical rotating shaft; 4115: Connecting component; 41151: Through hole; 4116: Connecting plate; 42: Outer track guide component; I: Outer track disconnection area;

[0076] 5: Upper rail mechanism; 51: Upper rail unit; 511: Inner guide rail; 512: Inner rail guide; 513: Inner limit rail; J: Inner rail break zone; K: Inner rail change position; L: Inner rail compensation position; N: First channel; 514: Outer centering rail;

[0077] 6: Gathering track mechanism; 61: External connecting track; 62: Internal connecting track; O: Gathering channel.

[0078] A: Inner limit position; B: Inner region position; C: Centering position; D: Outer region position; E: Outer limit position. Detailed Implementation

[0079] To better explain and facilitate understanding of the present invention, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Figure 1The direction indicated by the middle arrow is the direction in which the express sorting cart 2 moves along the conveyor belt 1. Along the direction of movement of the express sorting cart 2, the end of each component in the sorting track mechanism 3, reset track mechanism 4, packing track mechanism 5, and collecting track mechanism 6 that receives the actuating element 221 of the express sorting cart 2 is defined as upstream, and the end that detaches from the actuating element 221 is defined as downstream. Each component is correspondingly divided into upstream and downstream sections. For example, the express sorting cart 2 moves from upstream to downstream along the outer guide track 41.

[0080] See Figure 1-22 The present invention provides an express sorting system, which includes an express sorting line, an express sorting cart 2, a package feeding station and an express sorting mechanism.

[0081] The express sorting cart 2 can move along the length of the express sorting line. The package feeding station is used to load packages onto the express sorting cart 2, which can drive the express packages to move along the length of the express sorting line and deliver the packages to the express sorting mechanism at the corresponding route slot.

[0082] Furthermore, the express sorting line includes line 1 and a reset track mechanism 4 and a packing track mechanism 5 arranged sequentially on line 1 along the transport direction of line 1.

[0083] The reset track mechanism 4 includes an outer guide track 41 and an outer rail guide 42 arranged sequentially along the transport direction of the line 1. The downstream end of the outer guide track 41 is inclined towards the inside of the line 1 and corresponds to the upstream end of the outer rail guide 42. The upstream end of the outer guide track 41 is fixedly connected to the line 1. The downstream end of the outer guide track 41 can rotate around the upstream connection point of the outer guide track 41 and bend towards the inside of the line 1 so that the outer guide track 41 has at least one arc. The outer guide track 41 includes at least two parallel spaced plates 4111, and a buffer pad 4112 is provided between adjacent plates 4111.

[0084] The upper track mechanism 5 includes an inner limit track 513 located inside the outer track guide 42.

[0085] Line 1 is used to allow the actuating component 221 of the express sorting vehicle 2 to move along its length. The actuating component 221 can switch between the outer limit position E, the outer area position D, the centering position C, the inner area position B, and the inner limit position A, which are arranged sequentially from the outside to the inside in the width direction of line 1. When the actuating component 221 moves along the width direction of line 1, it enables the sorting platform 21 of the express sorting vehicle 2 to operate, receive express packages, and move the express packages.

[0086] The actuating element 221, located at the outer limit position E and the outer region position D, can be guided by the curved outer guide rail 41 to cross the outer rail guide 42 and enter the inner limit position A outside the inner limit rail 513.

[0087] In use, the curved outer guide rail 41 increases the angle between the tangent of the downstream sidewall of the outer guide rail 41 and the length direction of the line 1, guiding the actuating component 221 to pass over the outer guide rail 42 under inertia and accurately enter the inner limit position A outside the inner limit rail 513, so that one side of the sorting platform 21 of the express sorting vehicle 2 can receive the express. This avoids the situation where, when the actuating component 221 moves along the inner sidewall of the straight outer guide rail 41 to the downstream of the outer guide rail 41, the express sorting vehicle 2 moves too slowly, resulting in insufficient inertia or excessive friction between the actuating component 221 and the outer guide rail 41, causing the actuating component 221 to slip into the disconnection area and enter the centering position C, making it impossible to properly load the package.

[0088] Meanwhile, the outer guide rail 41 is configured to include at least two parallel spaced plates 4111, and a buffer pad 4112 is provided between adjacent plates 4111. When the actuating member 221 moves along the side wall of the outer guide rail 41, the impact force between the two can be absorbed by the deformation of the buffer pad 4112, thereby achieving the effect of shock absorption and noise reduction. It can also reduce the impact force between the two, avoid damage to the actuating member 221 and the outer guide rail 41, and correspondingly reduce the force at the two connection points between the outer guide rail 41 and the line body 1, thus avoiding breakage and failure at the connection points. It should be noted that, after being impacted by the actuating element 221, the force on each layer of the outer guide rail 41, from the side closest to the actuating element 221 to the side furthest away from the actuating element 221, gradually decreases. The side wall of the outer guide rail 41 furthest from the actuating element 221 experiences the least force and the least deformation, which can reduce the force on the two connection points on the outer guide rail 41 located on this side, thus preventing breakage and damage at this point.

[0089] Furthermore, the downstream end of the outer guide rail 41, which can rotate around its upstream connection point and bend inward toward the line body 1, allows the downstream end of the outer guide rail 41 to rotate after being impacted by the actuating element 221. This reduces some of the impact force directly acting on the downstream connection point of the outer guide rail 41, preventing deformation and cracking at the downstream connection point. The bent outer guide rail 41 can also absorb some of the impact force when subjected to the impact of the actuating element 221, preventing the two connection points of the outer guide rail 41 from being damaged or failing due to excessive force, and also reducing noise caused by contact with the actuating element 221.

[0090] In addition, since the express sorting vehicle 2 has multiple operating speeds and corresponding inertia, and the outer guide rail 41 is set in at least one arc, it can provide different arcs of the outer guide rail 41 according to the express sorting vehicle 2 with different operating speeds, so as to better guide the express sorting vehicle 2 with different inertia to enter the inner limit position A.

[0091] It should be noted that the outer guide rail 41 is elastic and can be bent. Preferably, the outer guide rail 41 is made of highly elastic steel.

[0092] Preferably, the outer guide rail 41 includes three plates 4111 to avoid the outer guide rail 41 being too thick and occupying too much space.

[0093] Preferably, the partition plate 4111 is bonded to the buffer pad 4112.

[0094] Preferably, the cushioning pad 4112 is a polyurethane elastic rubber cushioning pad or a metal rubber cushioning pad.

[0095] It should be noted that the two connection points of the outer guide rail 41 are not located at both ends. Their function is that when the toggle member 221 located at the outer extreme position E abuts against the upstream and downstream ends of the outer guide rail 41, the upstream and downstream ends can undergo a certain bending deformation after being impacted, so as to achieve a buffering effect and avoid excessive force and breakage caused by the inability to deform when the two ends are directly fixed on the line body 1.

[0096] Furthermore, the upstream sidewall of the outer guide rail 41 is fixedly connected to the connecting plate 4116, and screws are inserted into the connecting plate 4116 to thread it onto the line body 1; or, the upstream of the outer guide rail 41 is welded to the line body 1.

[0097] Furthermore, a connector 4115 is fixedly installed on the downstream side wall of the outer guide rail 41. A vertically oriented through hole 41151 is opened on the connector 4115. A vertical rotating shaft 4114 is inserted into the through hole 41151, and the through hole 41151 and the vertical rotating shaft 4114 are in clearance fit. The vertical rotating shaft 4114 is fixed on the line body 1.

[0098] With the clearance fit between the through hole 41151 and the vertical rotating shaft 4114, the downstream of the outer guide rail 41 is allowed to rotate and move relative to the vertical rotating shaft 4114, so that the downstream of the outer guide rail 41 can rotate around the upstream connection point of the outer guide rail 41 and bend toward the inside of the line body 1.

[0099] It should be noted that the curvature of the outer guide rail 41 is relatively small, which is sufficient to guide the actuating component 221 to pass over the outer guide rail 42 and enter the inner limit position A under the action of inertia.

[0100] Specifically, the vertical shaft 4114 is inserted into a pin seat, and a screw is inserted into the pin seat for threaded connection to the line body 1; alternatively, the vertical shaft 4114 is inserted into a pin seat, and the pin seat is welded to the line body 1; or, the vertical shaft 4114 is a screw that can be inserted into and threadedly connected to the line body 1. Preferably, the vertical shaft 4114 is detachably connected to the line body 1 for easy loading and unloading.

[0101] Furthermore, the track-changing mechanism also includes a bending member 4113 that abuts against and is capable of bending the downstream sidewall of the outer guide rail 41.

[0102] Specifically, the bending member 4113 includes a fixed plate 41131 and a push rod 41132 that passes through the fixed plate 41131 and can move horizontally relative to the fixed plate 41131.

[0103] When the push rod 41133 moves horizontally relative to the fixed plate 41131, the end of the push rod 41132 can abut against the downstream outer wall of the outer guide rail 41 and push the outer guide rail 41 to bend.

[0104] More specifically, the fixing plate 41131 is provided with a horizontal threaded hole, and the push rod 41132 is a threaded rod that passes through and is threadedly connected to the horizontal threaded hole; or, the fixing plate 41131 is provided with a horizontal through hole, the fixing plate 41131 is fixedly connected to a nut that is coaxial with the horizontal through hole, and the push rod 41132 is a threaded rod that passes through the nut and the horizontal through hole and is threadedly connected to the nut.

[0105] When the push rod 41132 is rotated, the push rod 41132 can move horizontally relative to the fixed plate 41131 to abut against and push the downstream side wall of the outer guide rail 41 to bend and deform. The horizontal displacement of the push rod 41132 relative to the fixed plate 41131 can be adjusted to facilitate the adjustment of the curvature of the outer guide rail 41.

[0106] Specifically, the push rod 41132 is a bolt.

[0107] Furthermore, the express sorting line includes a reset track mechanism 4, a packing track mechanism 5, a collection track mechanism 6, and a sorting track mechanism 3, which are sequentially arranged on the line 1 to form a closed loop along the transport direction of the line 1.

[0108] The reset track mechanism 4 is used to guide the actuating component 221 of the express sorting cart 2 that has participated in sorting and needs to be repackaged from the outer limit position E to the inner limit position A so that the express can be received and repackaged by one side of the sorting platform 21; or, it is used to guide the actuating component 221 of the express sorting cart 2 that has not participated in sorting and does not need to be repackaged to maintain the original centering position C and continue to move along the length direction of the line 1; or, it is used to guide the actuating component 221 of the express sorting cart 2 that has not participated in sorting and does not carry express and needs to be repackaged to move to the inner limit position A. The repacking track mechanism 5 is used to guide the actuating component 221 of the express sorting cart 2 that needs to be repackaged to move from the inner limit position A to the inner area position B so as to drive the sorting platform 21 to move the express towards the center of the sorting platform 21; or, it is used to guide the actuating component 221 of the express sorting cart 2 that does not need to be repackaged to maintain the inner limit position A and continue to move along the length direction of the line 1. The converging track mechanism 6 guides the actuating component 221 of the parcel sorting cart 2 to move from the inner area position B to the centering position C, thereby driving the sorting platform 21 to move the parcels to the center, facilitating subsequent bidirectional sorting; or, it guides the actuating component 221, which is not involved in parcel sorting, to continue moving from the inner limit position A. The sorting track mechanism 3 guides the actuating component 221, which is in the centering position C, to move to the inner limit position A or the outer limit position E, thereby driving the sorting platform 21 to move to one side and convey parcels for sorting; or, it guides the actuating component 221, which is not involved in parcel sorting, to continue moving from the inner limit position A.

[0109] Furthermore, when the express sorting vehicle 2 is normally involved in the sorting operation, the sorting method of the express sorting system includes the following steps:

[0110] S1: The downstream of the outer guide rail 41 rotates around the upstream connection point of the outer guide rail 41 and bends toward the inside of the line body 1.

[0111] S2: When the express sorting vehicle 2 has participated in sorting and the actuating component 221 is located at the outer limit position E, the actuating component 221 moves along the length direction of the line body 1. After abutting the upstream side wall of the outer guide rail 41, it is guided by the curved downstream side wall of the outer guide rail 41 to cross the outer rail guide component 42 and enter the inner limit position A outside the inner limit rail 513, so that the sorting platform 21 of the express sorting vehicle 2 can accept the express again.

[0112] S3: The actuating element 221 located at the inner limit position A can be guided into the inner area position B by the upper package track mechanism 5. The actuating element 221 drives the sorting platform 21 to move the express delivery closer to the center of the sorting platform 21.

[0113] S4: The actuating element 221 located in the inner area B can be guided by the gathering track mechanism 6 to enter the centering position C, and the actuating element 221 drives the sorting platform 21 to move the express delivery to the center of the sorting platform 21.

[0114] S5: The actuating element 221 located at the center position C can be guided by the sorting track mechanism 3 to enter the inner limit position A or the outer limit position E. The actuating element 221 drives the sorting platform 21 to move the express delivery to both ends of the sorting platform 21 to achieve bidirectional sorting.

[0115] S6: Repeat steps S2-S5.

[0116] Furthermore, the reset track mechanism 4 enables the actuating element 221 to switch to the inner limit position A, that is, enables the actuating element 221 and the mechanism 22 to move to one side of the express sorting vehicle 2. At this time, when the mechanism 22 is performing the loading operation, the actuating element 221 and the mechanism 22 can move to the inner area position B, thereby enabling the sorting platform 21 to drive the express from one side of the sorting platform 21 to the middle of the sorting platform 21, so as to ensure that the position of the express is always close to the middle position of the sorting platform 21, thereby ensuring that the express sorting vehicle 2 can achieve bidirectional sorting when performing express sorting operations.

[0117] Specifically, there is an outer rail disconnection zone I between the downstream end of the outer guide rail 41 and the upstream end of the outer rail guide 42 in the reset track mechanism 4.

[0118] The inner guide rail 511 in the upper rail unit 51 near the outer rail device is supported by the outer guide rail 41.

[0119] When the express sorting vehicle 2 is running to the reset track mechanism 4:

[0120] When the express sorting vehicle 2 participates in the sorting and the actuating component 221 of the mechanism 22 is at the outer limit position E, the actuating component 221 will be moved by the curved outer guide rail 41 to pass the outer guide rail 42 and enter the inner limit position A, ensuring that the express sorting vehicle 2 has sufficient adjustment stroke when running to the packing track mechanism 5 to ensure that the express after packing is in the middle position of the sorting platform 21.

[0121] When the express sorting cart 2, which has participated in sorting, is in the inner limit position A of the mechanism 22, the mechanism 22 continues to enter the inner limit position A outside the inner limit track 513, and the sorting platform 21 of the express sorting cart is loaded with packages again.

[0122] The actuating component 221 of the mechanism 22 of the express sorting cart 2 that is not involved in sorting will pass directly through the outer rail disconnection area I and remain in the center position C. This working condition corresponds to the working condition where the sorting platform 21 of the express sorting cart has no packing or sorting requirements.

[0123] Therefore, the reset track mechanism 4 can flexibly match the actual needs of the packing track mechanism 5 and the sorting track mechanism 3, greatly improving the flexibility of the express sorting track system and also improving the express sorting efficiency.

[0124] Specifically, the lower end of the outer rail guide 42 includes a first rail and a second rail arranged in a herringbone pattern. The first rail extends along the length of the line 1, and its upstream end is connected to the downstream end of the outer guide rail 41. The downstream end of the second rail is inclined inward toward the width direction of the line 1.

[0125] The first rail restricts the position of the actuating element 221 along the width direction of the line body 1 by passing through the outer rail disconnection zone I, thereby improving the stability of the actuating element 221 of the mechanism 22 of the express sorting vehicle 2 as it runs along the length direction of the line body 1. The second rail guides the actuating element 221 across the outer rail guide 42 to enter the inner limit position outside the inner limit rail 513.

[0126] Furthermore, the upper packing track mechanism 5 can receive the actuating member 221 of the reset track mechanism 4 and guide the actuating member 221 from the inner limit position A to the inner region position B to realize the upper packing, and can also guide the actuating member 221 from the inner limit position A to continue into the inner limit position A.

[0127] The upper track mechanism 5 includes an upper track unit 51, which includes an inner guide track 511 and an inner limit track 513. The inner guide track 511 and the inner limit track 513 are arranged sequentially from the outside to the inside along the width direction of the line body 1 and both extend along the length direction of the line body 1.

[0128] The inner guide rail 511 is located outside the inner limit rail 513 and extends along the length of the line body 1. The upstream end of the inner guide rail 511 is rotatably connected to the inner rail guide member 512. The inner rail guide member 512 can rotate and switch between the inner rail changing position K and the inner rail compensation position L.

[0129] When the inner rail guide 512 is located at the inner rail change position K, an inner rail break zone J is formed between the inner rail guide 512 and the downstream end of the outer rail guide 42. The actuating member 221 located at the inner limit position A can be guided by the inner rail guide 512 and enter the inner area position B outside the inner guide rail 511 through the inner rail break zone J.

[0130] When the inner rail guide 512 is located at the inner rail compensation position L, the inner rail disconnection zone J between the inner rail guide 512 and the downstream end of the outer rail guide 42 is closed, and the actuating member 221 located at the inner limit position A continues to enter the inner limit position A between the inner guide rail 511 and the inner limit rail 513.

[0131] Specifically, the inner guide rail 511 has an inner rail break zone J, and the inner rail guide member 512 is located in the inner rail break zone J.

[0132] The inner rail guide 512 can switch between the inner rail changing position K and the inner rail compensation position L; the actuating member 221 can run along the length direction of the line body 1; when the inner rail guide 512 is in the inner rail changing position K, the actuating member 221 in the inner limit position A can be guided by the inner rail guide 512 to the inner rail disconnection area J, and enter the inner area position B through the inner rail disconnection area J; when the inner rail guide 512 is in the inner rail compensation position L, the actuating member 221 in the inner limit position A can maintain the inner limit position A.

[0133] When the express sorting cart 2 moves from the reset track mechanism 4 to the upper packaging track mechanism 5, the actuating element 221 is at the inner limit position A or the centering position C. The working principle of the upper packaging track mechanism 5 is as follows:

[0134] When the express sorting vehicle 2 has a need to load packages and the actuating component 221 passes the outer rail guide component 42, the inner rail guide component 512, which is at the inner limit position A, can switch to the inner rail change position K. After the actuating component 221 enters the inner limit position A outside the inner limit track 513, the actuating component 221, which runs along the inner guide track 511, will be guided by the inner rail guide component 512 and enter the inner area position B from the inner limit position A. This process corresponds to the loading process, that is, the express will move from one side of the sorting platform 21 to the middle of the sorting platform 21.

[0135] When the express sorting vehicle 2 has no need to load packages and the actuating component 221 passes the outer rail guide 42, that is, when there is no need to load packages at the corresponding loading device, the inner rail guide 512 will switch to the inner rail compensation position L. After the actuating component 221 enters the inner limit position A outside the inner limit track 513, the actuating component 221 will remain in the inner limit position A.

[0136] Specifically, line 1 is a loop, and the loading and sorting positions of the express sorting vehicle 2 can be set as straight segments of the loop to facilitate loading and sorting operations.

[0137] In this embodiment, the inner guide rail 511 extends along the length direction of the line body 1; multiple upper guide rail units 51 are arranged sequentially along the length direction of the line body 1.

[0138] In this embodiment, multiple packing track units 51 are arranged consecutively, so that the sorting track 312 system has multiple adjacent packing slots. Each packing slot corresponds to a packing platform, and each packing platform can deliver express packages to the sorting platform 21. The corresponding packing platform only operates when the express sorting vehicle 2 has a packing demand. When the express sorting vehicle 2 runs to the packing track unit 51 corresponding to the packing platform, the inner rail guide 512 in the packing track unit 51 will switch to the inner rail changing position K, so that after the express package is output to the sorting platform 21, it will move closer to the center of the sorting platform 21.

[0139] When there is no need to load a package at the corresponding slot of the express sorting platform 21, the inner rail guide 512 in the loading track unit 51 corresponding to the loading platform in that slot will switch to the inner rail compensation position L, so that the actuating part 221 and the mechanism 22 are kept in the inner limit position A. Only when there is a need to load a package in the express sorting vehicle 2 will the corresponding inner rail guide 512 in the corresponding loading track unit 51 be controlled to switch to the inner rail change position K.

[0140] As can be seen, by adopting the technical solution in this invention, each express sorting vehicle 2 can independently load packages without affecting each other, which greatly improves the loading efficiency.

[0141] Specifically, the upper track unit 51 also includes an outer centering track 514 extending along the length of the line body 1. The outer centering track 514 is located outside the outer track guide 42.

[0142] When the express sorting vehicle 2 has no need to load packages and the actuating component 221 is in the centering position C, the actuating component 221 can continue to enter the centering position C formed inside the outer centering track 514 from the outer rail disconnection area I formed by the downstream end of the outer guide track 41 and the outer side of the upstream end of the outer rail guide component 42.

[0143] Simultaneously, when the inner rail guide 512 is in the inner rail changing position K, the inner rail guide 512 guides the actuating member 221 into the inner region position B. Since the actuating member 221 will still have inertia, the outer centering rail 514 can block the actuating member 221 from running due to inertia, so as to avoid it running to the outer region position D. The outer centering rail 514 and the inner guide rail 511 form a first channel N. The position of the first channel N along the width direction of the line body 1 corresponds to the inner region position B and the centering position C of the actuating member 221. The actuating member 221 in the first channel N has two situations: one is the actuating member 221 guided to the inner region position B through the centering rail unit, and the other is the actuating member 221 that maintains the centering position C.

[0144] Furthermore, the converging track mechanism 6 is used to receive the actuating element 221 of the upper package track mechanism 5. The converging track mechanism 6 can guide the actuating element 221 from the inner area position B to the centering position C so that the express delivery on the sorting platform 21 is in the middle of the sorting platform 21 as the sorting platform 21 runs, and can guide the actuating element 221 from the inner limit position A to continue into the inner limit position A.

[0145] The collecting track mechanism 6 includes an outer connecting track 61 and an inner connecting track 62. A collecting channel O is formed between the outer connecting track 61 and the inner connecting track 62. The collecting channel O extends along the length direction of the line body 1. One end of the collecting channel O is connected to the first end of the first channel N, and the other end of the collecting channel O is connected to the second end of the sorting track mechanism 3.

[0146] In this embodiment, the converging channel O formed between the outer connecting track 61 and the inner connecting track 62 can restrict the position of the actuating member 221 along the width direction of the line body 1. As the express sorting vehicle 2 runs, the actuating member 221, which is located in the inner area position B, will be moved to the center position C, thereby ensuring the normal operation of the express sorting work.

[0147] In this embodiment, the opening of the collection channel O gradually decreases from the first end of the collection channel O to the second end of the collection channel O.

[0148] In this embodiment, the converging channel O is configured as a trumpet shape, and both the outer connecting rail 61 and the inner connecting rail 62 are arc-shaped. When the toggle member 221 runs along the length direction of the line body 1, the toggle member 221 will gradually move from the inner region position B to the centering position C. The whole process is gentle and almost no collision noise is generated, which helps to improve the quietness of the process and also improves the service life of the toggle member 221, the outer connecting rail 61 and the inner connecting rail 62.

[0149] Furthermore, the sorting track mechanism 3 can receive the actuating component 221 of the collecting track mechanism 6, and can enable the actuating component 221 of the express sorting cart 2 to be sorted to move from the centering position C to the inner limit position A or the outer limit position E to drive the sorting platform 21 to move the express to one side of the sorting platform 21 and transmit it to the express sorting mechanism, thereby realizing the express sorting process, and enabling the actuating component 221 of the express sorting cart 2 that does not need to be sorted to remain in the inner limit position A.

[0150] Specifically, the sorting track mechanism 3 includes multiple sorting track units 31 arranged along the length of the line body 1. The sorting track units 31 are configured as two symmetrical units along the length of the line body 1 to achieve bidirectional sorting of express delivery.

[0151] The sorting track unit 31 includes a main track 311, a sorting track 312, and a main track guide 313. The main track 311 has a main track break area P, and the main track guide 313 is located in the main track break area P.

[0152] One end of the sorting track 312 is the first end adjacent to the main track break zone P, and the other end of the sorting track 312 is the second end extending away from the corresponding main track 311 along the width direction of the line body 1. The second end of the sorting track extends obliquely along the running direction of the express sorting vehicle 2 on the line body 1.

[0153] The main rail guide 313 can switch between the main rail compensation position F and the main rail changing position G;

[0154] When the main rail guide 313 maintains the main rail compensation position F, the actuating member 221, which is in the centering position C, can maintain its movement along the extension direction of the main rail 311 and maintain the centering position C.

[0155] When the main rail guide 313 maintains the main rail changing position G, the agitator 221 in the centering position C can be guided by the main rail guide 313 to the sorting track 312, so that the sorting track 312 will guide the agitator 221 from the centering position C to the inner limit position A or the outer limit position E.

[0156] A main rail channel H is formed between the two main rails 311 in the two sorting rail units 31. The position of the main rail channel H along the width direction of the line body 1 corresponds to the centering position C of the actuating member 221, and the main rail channel H extends to the reset rail mechanism 4.

[0157] Furthermore, a retaining track is provided between the sorting track mechanism 3 and the reset track mechanism 4. The retaining track includes a first retaining track and a second retaining track. The first retaining track forms a first retaining channel that connects to the main track channel 311 at one end and to the centering position C at the other end. The second retaining track forms a second retaining channel that connects to the inner limit position A of the sorting track mechanism 3 at one end and to the inner limit position A of the centering track device at the other end. The first retaining channel and the second retaining channel are used to further limit the position of the actuating lever 2 and prevent the actuating lever 2 from sliding when it runs along the line body 1 through the position between the sorting track mechanism 3 and the reset track mechanism 4.

[0158] Specifically, one end of the main rail guide 313 and the inner rail guide 512 can be hinged to the line body 1, and both are set as levers. They are controlled to swing by a cylinder on the line body 1, that is, the main rail guide 313 and the inner rail guide 512 can swing to the corresponding compensation position and track change position.

[0159] The cylinder is controlled by a control device, which can identify the code of each express sorting vehicle 2 and make individual adjustments to each vehicle.

[0160] Specifically, the control device can be set as a PLC.

[0161] Furthermore, the sorting closed loop is configured as multiple nested loops.

[0162] Multiple sorting loops also correspond to multiple continuous express sorting lines, which can enable multiple express sorting lines to operate together to improve express sorting efficiency.

[0163] The sorting closed loop also includes a sorting track mechanism 3, a reset track mechanism 4 and a collection track mechanism 6 arranged sequentially on the line 1, with the packing track mechanism 5 located between the reset track mechanism 4 and the collection track mechanism 6.

[0164] By setting up the various track devices in the above order, it is possible to ensure the continuity of express sorting and loading operations while maintaining the closed-loop sorting process.

[0165] Furthermore, the express sorting vehicle 2 includes a sorting platform 21 and a mechanism 22. An actuating element 221 is disposed on the mechanism 22, which is connected to and drives the sorting platform 21 to operate. The sorting platform 21 is used to receive and transport express packages to the sorting track.

[0166] When the parcel sorting cart 2 finishes sorting and loads packages onto the sorting platform 21 again, the actuating component 221 moves along the outer guide rail 41 and passes the outer guide rail 42 to enter the inner limit position A. At this point, the mechanism 22 can drive the sorting platform 21 to one side to receive the parcels. Subsequently, the actuating component 221 switches sequentially between the inner limit position A, the inner area position B, and the centering position C along the width direction of the line 1 to drive the sorting platform 21 to move the parcels. This allows the sorting platform 21 to gradually move the parcels to the center, so that in subsequent sorting processes, the sorting platform 21 can move the parcels to both sides and transfer them to the parcel sorting mechanisms located on both sides of the line 1, achieving bidirectional sorting.

[0167] Specifically, the express sorting vehicle 2 also includes a frame 23. The sorting platform 21 and the mechanism 22 are both mounted on the frame 23.

[0168] Optionally, the mechanism 22 includes a sliding member and a transmission member. The sliding member is slidably connected to the frame 23 of the express sorting vehicle 2 along the width direction of the line body 1. The transmission member is located on the frame 23, and the actuating member 221 is connected to the sliding member. The sliding member is used to bear the load along the width direction of the frame 23 to drive the transmission member to run, and then the transmission member drives the sorting platform 21 to operate.

[0169] The transmission component includes a first transmission assembly, which is drivenly connected to the sorting platform 21. The first transmission assembly includes a first chain and two first sprockets that cooperate with each other. Both first sprockets are rotatably connected to the frame 23. A sliding member is connected to the first chain, and one of the first sprockets is drivenly connected to the torque input end of the sorting platform 21.

[0170] The transmission component also includes a second transmission component that establishes a linkage between the first transmission component and the sorting platform 21. The second transmission component includes a cooperating second chain and two second sprockets. One second sprocket is connected to the first sprocket, and the other second sprocket is connected to the torque input end of the sorting platform 21.

[0171] Preferably, there are multiple express sorting vehicles 2 connected end to end.

[0172] Furthermore, there are multiple sorting track mechanisms 3, reset track mechanisms 4, packing track mechanisms 5, and collection track mechanisms 6, which are spaced apart along the width of the line 1.

[0173] The express sorting vehicle 2 includes multiple sorting platforms 21 and multiple mechanisms 22. The actuating components 221 of the multiple mechanisms 22 are guided by corresponding sorting track mechanisms 3, reset track mechanisms 4, packing track mechanisms 5 and collection track mechanisms 6, respectively.

[0174] Furthermore, the express delivery system also includes parcel supply stations and express sorting facilities.

[0175] The package feeding station is located on one side of the line body 1 and corresponds to the upstream end of the inner limit track 513. It is used to deliver express packages to one side of the sorting platform 21 when the actuating element 221 is in the inner limit position A.

[0176] The express sorting mechanism is located on one or both sides of the line 1 and corresponds to the sorting track mechanism 3. When the express sorting cart 2 moves to the sorting track mechanism 3, the sorting track mechanism 3 can guide the actuating component 221 located at the centering position C to move to the inner limit position A or the outer limit position E, so that the mechanism 22 drives the sorting platform 21 to move the express to one side of the sorting platform 21 and transmit it to the corresponding express sorting mechanism, thereby realizing bidirectional sorting.

[0177] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A parcel sorting line, characterized in that, It includes a line body (1) and a reset track mechanism (4) and an upper packing track mechanism (5) arranged sequentially on the line body (1) along the transport direction of the line body (1). The reset track mechanism (4) includes an outer guide track (41) and an outer rail guide (42) arranged sequentially along the transport direction of the line (1); the downstream end of the outer guide track (41) is inclined toward the inner side of the line (1) and corresponds to the upstream end of the outer rail guide (42); the upstream end of the outer guide track (41) is fixedly connected to the line (1); the downstream end of the outer guide track (41) can rotate around the upstream connection point of the outer guide track (41) and bend toward the inner side of the line (1) so that the outer guide track (41) has at least one arc; the outer guide track (41) includes at least two parallel spaced plates (4111), and a buffer pad (4112) is provided between adjacent plates (4111). The upper track mechanism (5) includes an inner limit track (513) located inside the outer track guide (42). The line (1) is used for the moving part (221) of the express sorting vehicle (2) to move along the length direction, and the moving part (221) can switch between the outer limit position (E), the outer area position (D), the centering position (C), the inner area position (B) and the inner limit position (A) arranged sequentially from the outside to the inside in the width direction of the line (1); The actuating element (221) located at the outer limit position (E) can be guided by the curved outer guide rail (41) to pass over the outer rail guide (42) and enter the inner limit position (A) outside the inner limit rail (513). The upper track mechanism (5) also includes an inner guide track (511) located outside the inner limit track (513) and extending along the length direction of the line (1). The upstream end of the inner guide track (511) is rotatably connected to an inner rail guide (512). The inner rail guide (512) can rotate and switch between the inner rail changing position (K) and the inner rail compensation position (L). When the inner rail guide (512) is located at the inner rail change position (K), an inner rail break zone (J) is formed between the inner rail guide (512) and the downstream end of the outer rail guide (42). The actuating member (221) located at the inner limit position (A) can be guided by the inner rail guide (512) and enter the inner area position (B) outside the inner guide rail (511) through the inner rail break zone (J). When the inner rail guide (512) is located at the inner rail compensation position (L), the inner rail disconnection zone (J) between the inner rail guide (512) and the downstream end of the outer rail guide (42) is closed, and the actuating member (221) located at the inner limit position (A) continues to enter the inner limit position (A) between the inner guide rail (511) and the inner limit rail (513).

2. The express sorting line as described in claim 1, characterized in that, A connector (4115) is fixedly installed on the downstream side wall of the outer guide rail (41). A vertically oriented through hole (41151) is opened on the connector (4115). A vertical rotating shaft (4114) is inserted into the through hole (41151). The through hole (41151) and the vertical rotating shaft (4114) are in clearance fit. The vertical rotating shaft (4114) is fixed on the line body (1).

3. The express sorting line as described in claim 1, characterized in that, It also includes a bending adjustment component (4113); the bending adjustment component (4113) includes a fixed plate (41131) and a push rod (41132) that passes through the fixed plate (41131) and is capable of moving horizontally relative to the fixed plate (41131). When the push rod (41132) moves horizontally relative to the fixed plate (41131), the end of the push rod (41132) can abut against the downstream outer wall of the outer guide rail (41) and push the outer guide rail (41) to bend.

4. The express sorting line as described in claim 3, characterized in that, The fixing plate (41131) is provided with a horizontal threaded hole, and the push rod (41132) is a threaded rod that passes through and is threadedly connected to the horizontal threaded hole; or, the fixing plate (41131) is provided with a horizontal through hole, and the fixing plate (41131) is fixedly connected to a nut that is coaxial with the horizontal through hole, and the push rod (41132) is a threaded rod that passes through the nut and the horizontal through hole and is threadedly connected to the nut.

5. The express sorting line as described in claim 1, characterized in that, It also includes a collection track mechanism (6) and a sorting track mechanism (3); The reset track mechanism (4), the packing track mechanism (5), the collection track mechanism (6) and the sorting track mechanism (3) are arranged sequentially on the line (1) along the transport direction of the line (1) and form a closed loop; The gathering track mechanism (6) can guide the actuating member (221) from the inner region position (B) to the centering position (C), and can guide the actuating member (221) from the inner limit position (A) to continue into the inner limit position (A). The sorting track mechanism (3) can guide the actuating member (221) from the centering position (C) to the inner limit position (A) or the outer limit position (E), and can guide the actuating member (221) from the inner limit position (A) to continue into the inner limit position (A).

6. The express sorting line as described in claim 5, characterized in that, The upper track mechanism (5) also includes an outer centering track (514) extending along the length direction of the line (1), the outer centering track (514) being located outside the outer track guide (42); The actuating member (221) located at the centering position (C) can continue to enter the centering position (C) formed inside the outer centering track (514) from the outer rail break zone (I) formed by the downstream end of the outer guide track (41) and the outer side of the upstream end of the outer rail guide member (42).

7. An express sorting system, comprising an express sorting line as described in any one of claims 1-6, and an express sorting vehicle (2) capable of moving along the length of the line (1). The express sorting vehicle (2) includes a sorting platform (21) and a mechanism (22); the actuating element (221) is disposed on the mechanism (22), and the mechanism (22) is connected to and drives the sorting platform (21) to operate; When the actuating element (221) moves along the outer guide rail (41) and passes the outer guide rail (42) to enter the inner limit position (A), the mechanism (22) can drive the sorting platform (21) to one side to receive express delivery. The upper packing track mechanism (5) can guide the actuating component to move to the centering position (C), so that the sorting platform (21) can drive the express delivery to the center of the sorting platform (21).

8. The express sorting system as described in claim 7, characterized in that, It also includes a package feeding station located on one side of the line (1), which corresponds to the upstream end of the inner limit track (513) and is used to deliver express packages to one side of the sorting platform (21) when the actuating member (221) is in the inner limit position (A).

9. A sorting method for an express sorting system as described in claim 7 or 8, characterized in that, Includes the following steps: S1: The downstream of the outer guide rail (41) rotates around the upstream connection point of the outer guide rail (41) and bends toward the inside of the line (1); S2: When the express sorting vehicle (2) has participated in sorting and the actuating component (221) is located at the outer limit position (E), the actuating component (221) moves along the length direction of the line (1) until it abuts the upstream side wall of the outer guide rail (41), and is guided by the curved downstream side wall of the outer guide rail (41) to cross the outer rail guide component (42) and enter the inner limit position (A) outside the inner limit rail (513), so that the sorting platform (21) of the express sorting vehicle (2) can accept express again; S3: The actuating element (221) located at the inner limit position (A) can be guided into the inner area position (B) by the upper package track mechanism (5), and the actuating element (221) drives the sorting platform (21) to move the express delivery closer to the center of the sorting platform (21); S4: The actuating element (221) located in the inner region (B) can be guided by the gathering track mechanism (6) to enter the centering position (C), and the actuating element (221) drives the sorting platform (21) to move the express delivery to the center of the sorting platform (21); S5: The actuating element (221) located at the center position (C) can be guided by the sorting track mechanism (3) to enter the inner limit position (A) or the outer limit position (E). The actuating element (221) drives the sorting platform (21) to move the express delivery to both ends of the sorting platform (21) to achieve bidirectional sorting. S6: Repeat steps S2-S5.

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