Warehousing system for supply chain management

Abstract

The invention discloses a warehousing system for supply chain management in the technical field of warehousing systems, which comprises a limiting frame, a track frame is fixedly connected in the limiting frame, a transport vehicle is slidably arranged on the limiting frame, a supporting platform is arranged at the top of the transport vehicle, the warehousing system further comprises a transport platform, and the transport platform comprises a speed changing assembly fixed on the inner side of the limiting frame. The track frame which is closed in the vertical direction is adopted, the occupied area is smaller, and reasonable utilization of the warehouse area is better facilitated; the concentric wheel assembly on the transport vehicle is engaged with the high-speed part and the low-speed part of the speed changing assembly in a switching mode, the transport vehicle slides at a low speed to guarantee stable transportation during cargo transportation, the transport vehicle rapidly slides and resets along the rail frame during no-load, and the cargo transportation efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of warehousing systems, and particularly to a warehousing system for supply chain management. Background Art

[0002] The warehousing management system is a specific form of warehousing management informatization, that is, the centralized warehousing of objects. With the gradual development of intelligent transport vehicles, warehousing management generally realizes the stacking warehousing of objects by transporting objects with transport vehicles. By using intelligent transport vehicles to transport objects, labor costs can be effectively reduced, and work efficiency can also be significantly improved.

[0003] In the existing warehousing systems, the intelligent transport vehicles used set tracks, so that the transport vehicles move along specific tracks from point A to point B for the transportation management of objects. The types of tracks include straight tracks and closed tracks. The transport vehicles on the straight tracks move back and forth for loading, unloading and transporting objects. The disadvantage is that multiple transport vehicles cannot run on a single track at the same time. While the transport vehicles on the closed tracks can move continuously back and forth and multiple transport vehicles can run at the same time, but the closed planar tracks cover a large area. In order to avoid safety accidents, the driving speed of the transport vehicles is relatively slow during the transportation process. Even when the transport vehicle unloads goods at point B and returns to point A to reload goods, the speed cannot be too fast to avoid collisions. In this way, when a complete transportation route is completed, that is, the transport vehicle goes from A to B and then returns to A, the speed of the transport vehicle always remains unchanged. How to effectively increase the no-load moving speed of the transport vehicle in a safe state.

[0004] Based on this, the present invention designs a warehousing system for supply chain management to solve the problem of improving the speed of the no-load transport vehicle during the return journey and thus improving the transport efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a warehousing system for supply chain management to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A warehousing system for supply chain management, including a limit frame, an inner fixed connection of the limit frame is provided with a track frame, a transport vehicle is slidably arranged on the limit frame, a support platform is arranged on the top of the transport vehicle, and further includes, A speed-changing assembly, located inside the limit frame, includes an external rack, the external rack is fixed at the bottom outside the track frame, and the inner top end of the track frame is fixedly connected with an internal rack; It further includes a concentric wheel assembly which is arranged on the transport vehicle for docking with the speed-changing assembly. The concentric wheel assembly includes an outer docking wheel rotatably arranged on the transport vehicle for docking with the outer rack, an inner docking wheel fixedly connected to the inner side of the outer docking wheel for docking with the inner rack, and a rotating shaft rotatably connected to the outer docking wheel for sliding docking with the inner side of the limit frame. When the support platform is fully loaded with goods, the concentric wheel assembly on the transport vehicle docks with the low-speed part of the speed-changing assembly for slow transportation. When the goods on the support platform are transferred, the transport vehicle rotates to the bottom of the track frame and docks with the high-speed part of the speed-changing assembly through the concentric wheel assembly for rapid movement, so that the transport vehicle can quickly reset along the track frame under the no-load state.

[0007] As a further solution of the present invention, a fixed seat is fixedly connected to the top end of the transport vehicle, a positioning plate is slidably connected to the top end of the fixed seat, a second spring for resetting the positioning plate is arranged inside the fixed seat, and a card slot for docking with the positioning plate is opened at the bottom of the support platform.

[0008] As a further solution of the present invention, a base is arranged at the bottom of the limit frame, a fixed frame with the top end fixedly connected to the limit frame is fixedly connected to the base, a conveyor belt is rotatably connected to the inner part of the top end of the base, connection grooves are respectively opened on both sides of the top end of the base, a plurality of first connecting shafts arranged at equal intervals are fixedly connected to the inside of the connection grooves, a buffer plate is slidably connected to the common top ends of the plurality of first connecting shafts, a first spring for resetting the buffer plate is sleeved on the first connecting shaft, and the top end of the buffer plate passes through the limit frame and is arranged inside the limit frame.

[0009] As a further solution of the present invention, a limit plate is slidably connected to the front end of the support platform, a notch corresponding to the card slot is opened on one side of the limit plate, a third connecting shaft with the bottom end slidably connected to the support platform is fixedly connected to one end of the limit plate, and a third spring for its resetting is sleeved on the third connecting shaft.

[0010] As a further solution of the present invention, the buffer plate is a conical plate with the rear side of the top end protruding upward, and an anti-slip sleeve for contacting the surface of the buffer plate to increase the friction force is sleeved on the outside of the rotating shaft.

[0011] As a further solution of the present invention, baffles for limiting the position of the support platform are respectively fixed on both sides of the top end of the base of the conveyor belt, and rollers for rolling contact with the outer wall of the support platform are rotatably connected to the inside of the baffles.

[0012] As a further solution of the present invention, two support platforms are provided. One support platform is docked at the top end of the transport vehicle, and the other support platform slides on the conveyor belt along with the conveyor belt.

[0013] Compared with the prior art, the beneficial effects of the present invention are: The present invention adopts a track frame closed in a vertical direction, which occupies a smaller area and is more conducive to the rational use of the warehouse area. When the transport vehicle reciprocates along the track frame to transport goods, the concentric wheel assembly on the transport vehicle is switched and meshed with the high and low speed parts of the speed change assembly. When transporting goods, the transport vehicle slides at a low speed to ensure smooth transportation. When empty, the transport vehicle quickly slides and resets along the track frame, effectively improving the efficiency of transporting goods. Due to the use of a vertical track frame, the transport vehicle does not need to worry about the safety problem of collision when moving at a high speed on the track frame. A support platform that can be detached from the transport vehicle is used. When transporting goods, the support platform can be stably placed on the upper end of the transport vehicle to support the goods for transportation. When the transport vehicle returns empty-load, the support platform is detached from the transport vehicle, which can further increase the empty-load moving speed of the transport vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the base structure; Figure 3 Schematic diagram of the internal structure of the limit frame; Figure 4 for Figure 3 The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of the local structure of the limit frame (the limit frame is partially hidden); Figure 6 It is a schematic diagram of the transport vehicle structure; Figure 7 Schematic diagram of the transport vehicle docking with the inner rack and the outer rack Figure 8 This is a schematic diagram of the supporting platform structure; Figure 9 It is a schematic diagram of the docking structure between the support platform and the transport vehicle; Figure 10 for Figure 9 Schematic diagram of the docking status.

[0015] In the attached drawings: 1. base; 2. fixing frame; 3. limiting frame; 4. supporting platform; 5. transport vehicle; 6. baffle; 7. conveyor belt; 8. connecting groove; 9. buffer plate; 10. first spring; 11. first connecting shaft; 12. outer docking wheel; 13. inner docking wheel; 14. outer rack; 15. rotating shaft; 16. inner rack; 17. alignment plate; 18. fixing seat; 19. second spring; 20. limiting plate; 21. notch; 22. third spring; 23. third connecting shaft; 24. slot; 25. track frame. DETAILED DESCRIPTION

[0016] See also Figures 1 - 10, the present invention provides a technical solution: a warehousing system for supply chain management, including a limit frame 3, inside the limit frame 3 is fixedly connected with a track frame 25, a transport vehicle 5 is slidably arranged on the limit frame 3, a support platform 4 is arranged on the top of the transport vehicle 5, and further includes, A speed-changing component, located inside the limit frame 3, includes an external rack 14, the external rack 14 is fixed at the bottom outside of the track frame 25, and the inner top end of the track frame 25 is fixedly connected with an internal rack 16; It further includes a concentric wheel component, which is arranged on the transport vehicle 5 for docking with the speed-changing component, including an external docking wheel 12 rotatably arranged on the transport vehicle 5 for docking with the external rack 14, an internal docking wheel 13 fixedly connected to the inside of the external docking wheel 12 for docking with the internal rack 16, and a rotating shaft 15 rotatably connected to the external docking wheel 12 for sliding docking with the inside of the limit frame 3; When the support platform 4 is full of goods, the concentric wheel component on the transport vehicle 5 is docked with the low-speed part of the speed-changing component for slow transportation, so that the transport vehicle 5 moves at a low speed when transporting goods above the support platform 4, ensuring the stability of the goods during transportation on the support platform 4. When the goods on the support platform 4 are transferred, the transport vehicle 5 rotates to the bottom of the track frame 25, and is quickly moved through the docking of the concentric wheel component with the high-speed part of the speed-changing component, so that the transport vehicle 5 can quickly reset along the track frame 25 in the unloaded state. The vertically closed track frame 25 is adopted, which occupies less area and is more conducive to the rational use of the warehouse area. When the transport vehicle 5 reciprocally transports goods along the track frame 25, the transport vehicle 5 slides at a low speed to ensure smooth transportation when transporting goods, and quickly slides and resets along the track frame 25 when unloaded, effectively improving the efficiency of transporting goods. Since the vertically arranged track frame 25 is adopted, there is no need to worry about safety problems of collision when the transport vehicle 5 moves at a high speed on the track frame 25; See Figure 5 , when the transport vehicle 5 slides above the track frame 25, that is, when the support platform 4 is loaded with goods for transportation at this time, the internal docking wheel 13 will engage with the internal rack 16. At this time, the rotation of the internal docking wheel 13 causes the transport vehicle 5 to slide horizontally along the track frame 25 ( Figure 7 the transport vehicle 5 shown at the top end of the track frame 25 in Figure 7The transport vehicle 5 shown at the bottom end of the middle track frame 25. At this time, the rotation direction of the outer docking wheel 12 is the same as that of the inner docking wheel 13. Due to the restriction of the rotating shaft 15 inside the limit frame 3, the outer docking wheel 12 rotates to engage with the outer rack 14. At this time, the transport vehicle 5 will slide reversely along the track frame 25 to drive the transport vehicle 5 to reset. Since the diameter of the outer docking wheel 12 is larger than that of the inner docking wheel 13 and the rotation speeds of the outer docking wheel 12 and the inner docking wheel 13 are the same, the sliding speed of the outer docking wheel 12 along the outer rack 14 is faster than the sliding speed of the inner docking wheel 13 along the inner rack 16, thereby realizing the rapid reset of the transport vehicle 5.

[0017] As a further solution of the present invention, a fixed seat 18 is fixedly connected to the top end of the transport vehicle 5. A positioning plate 17 is slidably connected to the top end of the fixed seat 18. A second spring 19 for resetting the positioning plate 17 is arranged inside the fixed seat 18. A card slot 24 for docking with the positioning plate 17 is opened at the bottom of the support platform 4. A base 1 is arranged at the bottom of the limit frame 3. A fixed frame 2 with the top end fixedly connected to the limit frame 3 is fixedly connected to the base 1. A conveyor belt 7 is rotatably connected to the inside of the top end of the base 1. Connecting grooves 8 are respectively opened on both sides of the top end of the base 1. A plurality of first connecting shafts 11 arranged at equal intervals are fixedly connected to the inside of the connecting grooves 8. A buffer plate 9 is slidably connected to the common top ends of the plurality of first connecting shafts 11. A first spring 10 for resetting the buffer plate 9 is sleeved on the first connecting shafts 11. The top end of the buffer plate 9 passes through the limit frame 3 and is arranged inside the limit frame 3. There are two support platforms 4 in total. One support platform 4 is docked at the top end of the transport vehicle 5, and the other support platform 4 slides on the conveyor belt 7 along with the conveyor belt 7. See Figure 1 、 Figure 2 、 Figures 6 - 8, when the transport vehicle 5 drives the support platform 4 to transport the goods carried on the support platform 4 to one end of the track frame 25 and completes unloading, the transport vehicle 5 rotates along the limit frame 3 to the bottom of the track frame 25. At this time, the limit plate 20 on the support platform 4 will first rotate to the position where it contacts the conveyor belt 7, and as the transport vehicle 5 gradually rotates, the bottom surface of the support platform 4 will gradually come into full contact with the conveyor belt 7. The limit plate 20 will compress the third spring 22 until the bottom surface of the limit plate 20 slides to the position where it is on the same horizontal plane as the bottom surface of the support platform 4. At this time, the notch 21 on the limit plate 20 will coincide with the card slot 24. Since the transport vehicle 5 has started to move at high speed at this time, and the transport speed of the conveyor belt 7 is less than the moving speed of the transport vehicle 5 at this time, and the overall weight of the support platform 4 is also supported by the conveyor belt 7, thus relieving the extrusion on the transport vehicle 5, making the conveyor belt 7 at the top of the support platform 4 gradually disengage from the card slot 24 until the support platform 4 is completely separated from the transport vehicle 5. The purpose of this is to separate the support platform 4 from the transport vehicle 5 in the no-load state, reduce the mass of the transport vehicle 5 in the no-load state, and further increase the no-load moving speed of the transport vehicle 5; When the transport vehicle 5 moves to the other end of the conveyor belt 7, it will dock with another support platform 4 that has already been placed on the conveyor belt 7. When the alignment plate 17 completely enters the inside of the card slot 24 and the transport vehicle 5 starts to rotate upward along the limit frame 3, the alignment plate 17 will drive the support platform 4 to rotate together. When the transport vehicle 5 rotates above the track frame 25, the support platform 4 is reinstalled above the transport vehicle 5, and then the goods are placed on the support platform 4 and transported again through the transport vehicle 5. At this time, it is a complete transport process of one transport vehicle 5; See Figure 9 , after the goods are placed above the support platform 4, under the combined action of the weight of the goods and the support platform 4, the support platform 4 slides along the direction of V1 to the position where it contacts and supports the top of the transport vehicle 5. At the same time, the two-sided alignment plates 17 slide along the direction of V2 to both sides of the fixed seat 18 under the pressure of the support platform 4. Thus, as the mass of the goods placed on the support platform 4 continuously increases, the alignment plates 17 continuously slide to the position where they contact the inner walls on both sides of the card slot 24. The purpose of this is to fill the inside of the card slot 24 by the sliding of the alignment plates 17, so that the support platform 4 and the transport vehicle 5 can be firmly docked, further increasing the stability during transportation. And before docking, the cavity size of the card slot 24 is larger than the overall size of the alignment plate 17 and the fixed seat 18. Compared with the situation where the overall size of the alignment plate 17 is the same as the cavity size of the card slot 24, it can effectively ensure the docking effect and avoid the problem that the alignment plate 17 cannot be docked with the card slot 24 due to position deviation. And after the support platform 4 bears the goods, the extended alignment plates 17 can also stably dock the support platform 4 and the transport vehicle 5.

[0018] As a further solution of the present invention, a limiting plate 20 is slidably connected to the front end of the support platform 4. A notch 21 corresponding to the card slot 24 is provided on one side of the limiting plate 20. One end of the limiting plate 20 is fixedly connected to a third connecting shaft 23 whose bottom is slidably connected to the support platform 4. A third spring 22 for its reset is sleeved on the third connecting shaft 23. The buffer plate 9 is a conical plate with the rear side of the top protruding upward. An anti-slip sleeve for contacting the surface of the buffer plate 9 to increase the friction force is sleeved outside the rotating shaft 15; See Figure 3 , Figure 4 , when the transport vehicle 5 is reset at the bottom of the track frame 25, it moves at a high speed. If the speed of the transport vehicle 5 is too fast when it docks with the support platform 4, it is easy to have a docking deviation, resulting in a problem that the alignment plate 17 impacts the support platform 4. When the transport vehicle 5 slides along the bottom of the track frame 25 to the position where the rotating shaft 15 contacts the buffer plate 9, the transport vehicle 5 continues to slide, causing the rotating shaft 15 to squeeze the buffer plate 9 to slide downward, so that the first spring 10 is gradually compressed. And as the transport vehicle 5 gradually slides, the displacement of the buffer plate 9 increases. The buffer is carried out on the transport vehicle 5 through the gradually increasing reset elastic force of the first spring 10, so that the speed of the transport vehicle 5 is effectively reduced when it gradually docks with the support platform 4. Until after the support platform 4 is docked with the transport vehicle 5, the rotating shaft 15 disengages from the contact with the surface of the buffer plate 9 and continues to move at a high speed, while the buffer plate 9 automatically resets under the reset elastic force of the first spring 10.

[0019] As a further solution of the present invention, baffles 6 for restricting the position of the support platform 4 are respectively fixed to the top ends of the bases 1 on both sides of the conveyor belt 7. A roller for rolling contact with the outer wall of the support platform 4 is rotatably connected inside the baffle 6; See Figure 2 , when the support platform 4 slides on the conveyor belt 7, the position of the support platform 4 is restricted by the baffles 6 on both sides, avoiding the deviation of the direction of the support platform 4 during transportation. At the same time, the rolling friction between the roller and the support platform 4 is small, so that the support platform 4 can slide along the conveyor belt 7 without being frictionally stopped by the baffle 6.

[0020] Working principle: When the inner docking wheel 13 slides to the other end of the track frame 25, the goods on the support platform 4 are unloaded. The inner docking wheel 13 continues to rotate. When the rotating shaft 15 rotates along the inner wall of the limit frame 3 so that the transport vehicle 5 is transported to the bottom of the track frame 25, at this time, the outer docking wheel 12 concentric with the inner docking wheel 13 will engage with the outer rack 14, and the inner docking wheel 13 disengages from the engagement with the inner rack 16. At this time, the rotation direction of the outer docking wheel 12 is the same as that of the inner docking wheel 13. Due to the restriction of the rotating shaft 15 inside the limit frame 3, the outer docking wheel 12 rotates to engage with the outer rack 14. At this time, the transport vehicle 5 will slide reversely along the track frame 25 to drive the transport vehicle 5 to reset. Since the diameter of the outer docking wheel 12 is larger than that of the inner docking wheel 13 and the rotation speeds of the outer docking wheel 12 and the inner docking wheel 13 are the same, the sliding speed of the outer docking wheel 12 along the outer rack 14 is faster than the sliding speed of the inner docking wheel 13 along the inner rack 16. When the transport vehicle 5 slides above the track frame 25, that is, when the support platform 4 is loading and transporting goods at this time, the inner docking wheel 13 will engage with the inner rack 16. At this time, the rotation of the inner docking wheel 13 causes the transport vehicle 5 to slide horizontally along the track frame 25. When the transport vehicle 5 drives the support platform 4 to transport the goods carried on the support platform 4 to one end of the track frame 25 and completes the unloading, the transport vehicle 5 rotates along the limit frame 3 to the bottom of the track frame 25. At this time, the limit plate 20 on the support platform 4 will first rotate to the position in contact with the conveyor belt 7, and as the transport vehicle 5 gradually rotates, the bottom surface of the support platform 4 gradually comes into full contact with the conveyor belt 7. The limit plate 20 will compress the third spring 22 until the bottom surface of the limit plate 20 slides to the position where it is on the same horizontal plane as the bottom surface of the support platform 4. At this time, the notch 21 on the limit plate 20 will coincide with the card slot 24. Since the transport vehicle 5 has started to move at a high speed at this time, and the transport speed of the conveyor belt 7 is less than the moving speed of the transport vehicle 5 at this time, and the overall weight of the support platform 4 is also supported by the conveyor belt 7 to relieve the extrusion on the transport vehicle 5, the conveyor belt 7 at the top of the support platform 4 gradually disengages from the card slot 24 until the support platform 4 is completely separated from the transport vehicle 5. Since the transport vehicle 5 moves at a high speed when resetting at the bottom of the track frame 25, if the speed is too fast when the transport vehicle 5 is docked with the support platform 4, it is easy to have a docking deviation resulting in a problem that the alignment plate 17 collides with the support platform 4. When the transport vehicle 5 slides along the bottom of the track frame 25 to the position where the rotating shaft 15 contacts the buffer plate 9, the transport vehicle 5 continues to slide so that the rotating shaft 15 squeezes the buffer plate 9 to slide downward, causing the first spring 10 to be gradually compressed. And as the transport vehicle 5 gradually slides, the displacement of the buffer plate 9 increases. The reset elastic force of the first spring 10 gradually increases to buffer the transport vehicle 5, so that the speed of the transport vehicle 5 is effectively reduced when it is gradually docked with the support platform 4. Until after the support platform 4 is docked with the transport vehicle 5, the rotating shaft 15 disengages from the surface of the buffer plate 9 and continues to move at a high speed. After the goods are placed above the support platform 4, under the combined action of the weights of the goods and the support platform 4, the alignment plate 17 compresses the second spring 19 and slides towards both sides of the fixed seat 18. Thus, as the mass of the goods placed on the support platform 4 continuously increases, the alignment plate 17 continuously slides to a position where it contacts the inner walls on both sides of the card slot 24. The purpose of doing this is to fill the inside of the card slot 24 by the sliding of the alignment plate 17, so that the support platform 4 and the transport vehicle 5 can be firmly docked.

Claims

1. A warehousing system for supply chain management, comprising a limit frame (3), wherein an orbital frame (25) is fixedly connected inside the limit frame (3), a transport vehicle (5) is slidably arranged on the limit frame (3), and a support platform (4) is arranged on the top of the transport vehicle (5), characterized in that: It further includes a speed-changing component located inside the limit frame (3), including an external rack (14). The external rack (14) is fixed to the outer bottom of the track frame (25), and an internal rack (16) is fixedly connected to the inner top of the track frame (25); It further includes a concentric wheel component arranged on the transport vehicle (5) for docking with the speed-changing component, including an external docking wheel (12) rotatably arranged on the transport vehicle (5) for docking with the external rack (14). An internal docking wheel (13) for docking with the internal rack (16) is fixedly connected to the inner side of the external docking wheel (12). A rotating shaft (15) for sliding docking with the inner side of the limit frame (3) is rotatably connected to the external docking wheel (12); When transporting goods through the support platform (4), the concentric wheel component on the transport vehicle (5) docks with the speed-changing component for low-speed transportation. When the goods on the support platform (4) are transferred, the concentric wheel component docks with the speed-changing component for rapid movement.

2. The warehousing system for supply chain management according to claim 1, characterized in that: A fixed seat (18) is fixedly connected to the top of the transport vehicle (5). A positioning plate (17) is slidably connected to the top of the fixed seat (18). A second spring (19) for resetting the positioning plate (17) is arranged inside the fixed seat (18). A card slot (24) for docking with the positioning plate (17) is formed at the bottom of the support platform (4).

3. A warehousing system for supply chain management according to claim 1, characterized in that: A base (1) is arranged at the bottom of the limit frame (3). A fixed frame (2) with its top fixedly connected to the limit frame (3) is fixedly connected to the base (1). A conveyor belt (7) is rotatably connected to the inner top of the base (1). Connecting grooves (8) are respectively formed on both sides of the top of the base (1). A plurality of first connecting shafts (11) evenly distributed at equal intervals are fixedly connected inside the connecting grooves (8). A buffer plate (9) is slidably connected to the tops of the plurality of first connecting shafts (11). A first spring (10) for resetting the buffer plate (9) is sleeved on the first connecting shafts (11). The top of the buffer plate (9) passes through the limit frame (3) and is arranged inside the limit frame (3).

4. The warehousing system for supply chain management according to claim 2, characterized in that: A limit plate (20) is slidably connected to the front end of the support platform (4). A notch (21) corresponding to the card slot (24) is formed on one side of the limit plate (20). A third connecting shaft (23) with its bottom slidably connected to the support platform (4) is fixedly connected to one end of the limit plate (20). A third spring (22) for its resetting is sleeved on the third connecting shaft (23).

5. A warehousing system for supply chain management according to claim 3, characterized in that: The buffer plate (9) is a conical plate with the rear side of the top protruding upward. An anti-slip sleeve for increasing the friction by contacting the surface of the buffer plate (9) is sleeved on the outside of the rotating shaft (15).

6. The warehousing system for supply chain management according to claim 3, characterized in that: Baffles (6) for restricting the position of the support platform (4) are respectively fixed to the tops of both sides of the conveyor belt (7) on the base (1). Rollers for rolling contact with the outer wall of the support platform (4) are rotatably connected inside the baffles (6).

7. A warehousing system for supply chain management according to claim 3, characterized in that: Two support platforms (4) are provided in total. One support platform (4) is docked on the top of the transport vehicle (5), and the other support platform (4) slides on the conveyor belt (7) along with the conveyor belt (7).

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