Stackable tote storage system and handling system

Abstract

The present disclosure relates to the technical field of intelligent warehouses. Provided are a stackable tote storage system and a handling system. The stackable tote storage system comprises tote storage areas, a tote pick-and-place device, tote temporary storage areas, a lifting device and a bottom transfer device, wherein a plurality of tote storage areas are provided spaced apart from each other and are configured to vertically stack and store totes; the tote temporary storage areas are arranged above the tote storage areas and are configured to temporarily store totes to be dispatched that are sorted by the tote pick-and-place device, or, are configured to temporarily store totes to be warehoused; a top conveying device is further provided above the tote storage areas, and configured to convey the totes to be dispatched in the tote temporary storage areas to the lifting device; and the lifting device is located on one side of the tote storage areas and configured to convey said totes to the bottom transfer device. The temporarily-stored totes of the stackable tote storage system are located at the tops of the stacked totes without occupying extra space, and the temporary storage capability of the totes is large; and procedures are handled step-by-step, wherein each procedure is handled by a corresponding device, such that the efficiency is higher.

Description

A stacking material box storage system and handling system

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This disclosure claims priority to Chinese patent application number 2024205602266, filed with the Chinese Patent Office on March 21, 2024, entitled “A stacked material box storage system and handling system,” the entire contents of which are incorporated by reference into this disclosure. Technical Field

[0003] The present disclosure relates to the technical field of intelligent warehouses, and in particular to a stacking material box storage system and a handling system. Background Art

[0004] Traditional warehousing systems usually use shelves to store containers, which affects the storage capacity of containers. In order to overcome the above problems, there are solutions to improve shelves in the related art. For example, CN218369802U discloses a warehousing system and a bracket. The bracket of the system has storage positions and temporary storage positions arranged vertically at intervals. The storage position is located above the temporary storage position, and the storage position is configured to store multiple containers stacked vertically; the first handling device is configured to drive the upper-level container pick-up and placement mechanism to move other containers stacked on the target container, and drive the lower-level container pick-up and placement mechanism to take out the target container and place it on the temporary storage position, and drive the upper-level container pick-up and placement mechanism again to put the other containers back. The second handling device is configured to travel below the temporary storage position and transport the target container on the temporary storage position to the workbench.

[0005] Although the above scheme increases the storage capacity to a certain extent by improving the shelf structure, it adopts the method of taking out from above and storing from below. The temporary storage position is located below the storage position, and the number of temporary storage positions is relatively limited. Moreover, the second handling equipment travels below the temporary storage position, and the target container of a single handling is limited by the space size of the temporary storage position. After the second handling equipment takes the target container below the temporary storage position, it shares the same aisle with the first handling equipment, which is prone to interference and leads to low efficiency.

[0006] Utility Model Content

[0007] In response to the shortcomings of related technologies, the purposes of the present disclosure include, for example, providing a stacked material box storage system and a handling system, in which the cache material box is located at the top of the stacked material box, does not occupy additional space, and has a large material box cache capacity; the processes are processed step by step, and each process is handled by the corresponding device, which is more efficient.

[0008] To achieve the above objectives, the embodiments of the present disclosure may be implemented as follows:

[0009] In a first aspect, an embodiment of the present disclosure provides a stacked container storage system, comprising a container storage area, a container retrieval device, a container buffer area, a lifting device, and a bottom transfer device;

[0010] The material box storage area is provided with a plurality of intervals, which are configured to vertically stack and store material boxes;

[0011] The material box buffer area is arranged above the material box storage area, and is configured to temporarily store the material boxes to be shipped out picked by the material box picking and placing device, or to temporarily store the material boxes to be shipped in;

[0012] A top conveying device is further provided above the material box storage area, and the top conveying device is configured to convey the material boxes to be shipped cached in the material box buffer area to the lifting device;

[0013] The lifting device is located at one side of the material box storage area and is configured to transport the material boxes to be shipped out to the bottom transfer device.

[0014] Optionally, the material box buffer area includes a bracket, and the top of the bracket is configured to cache stacked material boxes; the top conveying device is movable on the top of the bracket.

[0015] Optionally, one end of the bracket close to the lifting device is connected through a connecting channel, and the top conveying device can move on the bracket and the top of the connecting channel.

[0016] Optionally, the top conveying device includes a first mobile chassis, and a picking mechanism is installed on the top of the first mobile chassis.

[0017] Optionally, the lifting device includes a first cargo platform and a lifting drive mechanism connected to the first cargo platform; the first cargo platform is configured to dock with a top conveying device and / or a bottom transfer device.

[0018] Optionally, the first cargo platform includes a support frame and a plurality of transmission rollers, the support frame is connected to the lifting drive mechanism, and the plurality of transmission rollers are installed on the support frame.

[0019] Optionally, the lifting drive mechanism is a chain transmission mechanism or a belt transmission mechanism.

[0020] Optionally, the bottom transfer device includes a second mobile chassis, and a second cargo platform is installed on the top of the second mobile chassis.

[0021] Optionally, the material box picking and placing device includes a support frame and a third mobile chassis installed at the bottom of the support frame; the support frame is installed with several forks, and at least one side of the support frame is provided with multiple support plates, and the support plates are configured to store single-layer or multi-layer material boxes.

[0022] Optionally, the material box picking and placing device further includes a rotating mechanism and a lifting mechanism, the rotating mechanism is arranged on the third mobile chassis, and the rotating mechanism is connected to the lifting mechanism.

[0023] Optionally, the rotating mechanism includes a rotating seat and a rotating motor, the rotating seat is in transmission connection with the third movable chassis, and the rotating motor is connected to the transmission seat.

[0024] Optionally, the lifting mechanism is a chain transmission mechanism or a belt transmission mechanism.

[0025] Optionally, the material box to be stored can be transported by the bottom transfer device to the lifting device, and then transferred by the lifting device to the top conveying device, so that the top conveying device can transport the material box to be stored to the material box buffer area for temporary storage.

[0026] On the second aspect, an embodiment of the present disclosure also provides a stacked material box handling system, including the material box top caching system, and also including a picking and out-of-warehouse device and a material picking device. The picking and out-of-warehouse device is configured to dock with the bottom transfer device and transport the material boxes to be out of the warehouse on the bottom transfer device to the material picking device.

[0027] Optionally, the picking and dispatching device includes a material box unpacking mechanism and a first conveying mechanism which are arranged in sequence, and the material box unpacking mechanism has the function of unstacking the stacked material boxes to be dispatched.

[0028] Optionally, it also includes an automatic material box storage device, which is configured to dock with the bottom transfer device and has the function of transferring the material boxes to be stored from the material picking device to the bottom transfer device.

[0029] Optionally, the automatic material box warehousing device includes a material box stacking mechanism and a second conveying mechanism arranged in sequence, and the material box stacking mechanism has a material box stacking function.

[0030] The beneficial effects of the present disclosure include:

[0031] (1) The present invention sets up a material box buffer area above the material box storage area, that is, the cache material box is located on the top of the stacked material boxes and does not occupy additional space; the material boxes can be stacked directly on the ground, which can improve the material box storage density; through the cooperation of the material box picking and placing device, the top conveying device, the lifting device and the bottom transfer device, the transfer of material boxes to be stored and the material boxes to be shipped out can be realized, and the processes are processed step by step, and each process is processed by the corresponding device, which is more efficient; at the same time, the material boxes are temporarily stored in the upper part and lowered by the lifting device, which is not limited by the cache space.

[0032] (2) The present disclosure can also set up connecting channels between the material box buffer areas, so that the top conveying device can shuttle between the outbound buffer position and the inbound buffer position on the top of each stack through the connecting channel, and can transport the material boxes to be outbound to the lifting device; it can also lift the lifting device to the top of the material boxes to be inbound and transport them to the inbound buffer position, making the temporary storage method of the material boxes more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which constitute a part of the present disclosure, are used to provide a further understanding of the present disclosure. The exemplary embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation to the present disclosure.

[0034] FIG1 is a schematic diagram of the layout of various devices according to one or more embodiments of the present disclosure;

[0035] FIG2 is a second schematic diagram of the layout of various devices according to one or more embodiments of the present disclosure;

[0036] FIG3 is a schematic structural diagram of a container picking and placing device with a single fork according to one or more embodiments of the present disclosure;

[0037] FIG4 is a schematic structural diagram of a container picking and placing device with dual forks according to one or more embodiments of the present disclosure;

[0038] FIG5 is a schematic structural diagram of a top conveying device according to one or more embodiments of the present disclosure;

[0039] FIG6 is a schematic structural diagram of a lifting device according to one or more embodiments of the present disclosure;

[0040] FIG7 is a schematic structural diagram of a bottom transfer device according to one or more embodiments of the present disclosure;

[0041] FIG8 is a schematic diagram of the docking of the lifting device and the bottom transfer device according to one or more embodiments of the present disclosure;

[0042] FIG9 is a schematic diagram of the bottom transfer device and the picking and outgoing device docking according to one or more embodiments of the present disclosure;

[0043] FIG10 is a schematic structural diagram of an automatic material box storage device according to one or more embodiments of the present disclosure.

[0044] Among them, 100, material box storage area, 200, material box picking and placing device, 300, picking and unloading device, 400, material box automatic warehousing device, 500, material picking device, 600, warehouse management module, 700, material box buffer area, 800, top conveying device, 900, lifting device, 1000, bottom transfer device;

[0045] 101. Material box, 102. Bracket, 103. Connecting channel; 201. Support frame, 202. Third mobile chassis, 203. Fork, 204. Support plate, 205. Lifting mechanism; 301. Material box unpacking mechanism, 302. First conveying mechanism; 401. Material box stacking mechanism, 402. Second conveying mechanism; 801. First mobile chassis, 802. Picking mechanism; 901. First loading platform, 902. Lifting drive mechanism; 1001. Second mobile chassis, 1002. Second loading platform. DETAILED DESCRIPTION

[0046] This embodiment provides a stacked material box storage system, as shown in Figure 1, including a material box storage area 100, a material box picking and placing device 200, a material box buffer area 700, a top conveying device 800, a lifting device 900 and a bottom transfer device 1000. The material box buffer area 700 is arranged above the material box storage area 100, which can save ground space compared to other temporary storage methods.

[0047] Specifically, a plurality of material box storage areas 100 are arranged at intervals, each material box storage area 100 is configured to store material boxes 101. The number of material box storage areas 100 is determined according to the stacking capacity of material boxes 101. Material boxes 101 are material boxes that store single or multiple specifications of materials.

[0048] Figure 1 shows two material box storage areas 100. The material box picking and placing device 200 picks the material boxes to be shipped out from one of the material box storage areas 100 and temporarily stores them in the material box buffer area 700; the other material box storage area 100 is configured to stack the material boxes to be shipped in after being shipped out and picked.

[0049] In this embodiment, the material boxes are stacked directly on the ground, and the stacking height of the material boxes depends on the number of material boxes.

[0050] A support 102 is provided above the bin storage area 100, and a bin buffer area 700 is formed above the support 102. Specifically, the space above the support 102 is configured to stack bins that have been sorted and are waiting to be shipped out, or to stack bins that are waiting to be shipped in. By providing the support 102, the bin storage area 100 and the bin buffer area 700 only occupy longitudinal space, saving floor space during the bin picking process.

[0051] As shown in Figure 1, the bin picking and placing device 200 is mobile and can move to the side of the bin storage area 100, pick out bins to be shipped, and lift them to the bin buffer area 700. Considering the efficiency of picking bins to be shipped, the bin picking and placing device 200 itself can also be equipped with a buffer position to meet the needs of different order volumes.

[0052] The bin retrieval device 200 uses a fork to retrieve the bins, and therefore includes forks 203. Similarly, to meet varying order volume requirements, the bin retrieval device 200 can be equipped with either a single set of forks 203 or multiple sets of forks 203. Figure 3 illustrates a bin retrieval device 200 equipped with a single set of forks 203. The bin retrieval device 200 also includes a support frame 201, with the forks 203 mounted inside the support frame 201. Because retrieval and placement of the bins requires a gripping action, the forks 203 are arranged in pairs, i.e., a set of forks 203 includes two opposing fork arms.

[0053] A buffering position is provided on at least one side of the support frame 201. A fork 203 places the retrieved bins to be shipped into the buffering position or the bin buffer area 700. Therefore, the fork 203 is capable of both lifting and rotating movements. In this embodiment, the bin retrieval and placement device further includes a third mobile chassis 202, a rotating mechanism, and a lifting mechanism 205. The third mobile chassis 202 is mounted on the bottom of the support frame 201, the fork 203 is mounted on the third mobile chassis 202, and the rotating mechanism is provided on the third mobile chassis 202. The rotating mechanism is connected to the lifting mechanism 205, thereby meeting the lifting and rotating requirements of the fork 203.

[0054] It should be noted that the rotating mechanism and the lifting mechanism 205 are both implemented using existing technologies. For example, the lifting mechanism 205 uses a chain transmission mechanism, a belt transmission mechanism or other mechanisms driven by a motor; the rotating mechanism includes a rotating seat rotatably connected to the third mobile chassis 202, and the rotating seat is connected to a rotating motor, etc.

[0055] This embodiment uses the example of buffering locations on both sides of support frame 201 as an example for detailed description. As shown in Figure 3, the buffering locations are formed by support plates 204 spaced apart along the height of support frame 201. Adjacent support plates 204 are spaced apart, and this spacing can be equal or unequal. The space above the upper surface of support plates 204 constitutes the buffering location. The buffering location can accommodate a single layer of bins or multiple layers of bins. The buffering locations on both sides of support frame 201 can accommodate the same or different numbers of bins, thereby forming various types of bin buffering configurations.

[0056] FIG4 shows a container picking and placing device 200 with two sets of forks 203 . The difference between the device and a single set of forks 203 is that the upper forks 203 may have only a lifting function or both a lifting and rotating function.

[0057] In this embodiment, the bins to be shipped, which are picked by the bin retrieval device 200, are stacked in multiple rows and columns on the upper side of the support 102. To facilitate the transfer of the bins to be shipped, the support 102 is also provided with a top conveyor device 800, a lifting device 900 that cooperates with the top conveyor device 800, and a bottom transfer device 1000. As shown in Figure 1, the lifting device 900 is located on one side of the bin storage area 100 and the bin buffer area 700, and the bottom transfer device 1000 is located on the ground.

[0058] The top conveyor 800 has the function of gripping the bins waiting to be shipped from the bin buffer area 700 and automatically transporting them to the lifting device 900. It also has the function of gripping the bins waiting to be shipped that have been retrieved by the lifting device 900 and automatically transporting them to the bin buffer area 700. As shown in Figure 5, the top conveyor 800 includes a first mobile chassis 801 and a pickup mechanism 802. The pickup mechanism 802 is mounted above the first mobile chassis 801. The first mobile chassis 801 enables the top conveyor 800 to move between the stacked bins waiting to be shipped. The pickup mechanism 802 uses a fork 203 to perform the gripping function.

[0059] As shown in Figures 6 and 8, the lifting device 900 has the function of transporting the unloaded material boxes conveyed by the top conveying device 800 to the bottom transfer device 1000; it also has the function of transporting the incoming material boxes conveyed by the bottom transfer device 1000 to the top conveying device 800. The lifting device 900 includes a first cargo platform 901 and a lifting drive mechanism 902. The first cargo platform 901 is connected to the lifting drive mechanism 902. Under the action of the lifting drive mechanism 902, it can dock with the top conveying device 800 and the bottom transfer device 1000 to achieve the position transfer of the material boxes.

[0060] The lifting drive mechanism 902 is implemented using existing technology, such as a motor-driven chain drive mechanism or belt drive mechanism. In this embodiment, the first loading platform 901 includes a support frame connected to the lifting drive mechanism 902, and a plurality of transmission rollers mounted on the support frame. The rotation of the transmission rollers realizes the transfer of the material box.

[0061] The bottom transfer device 1000 receives bins waiting for removal from the lifting device 900 and transports them to the sorting and removal device 300. It also receives bins waiting for entry from the automatic bin entry device 400 and transports them to the lifting device 900. As shown in Figure 7, the bottom transfer device 1000 includes a second mobile chassis 1001 and a second cargo platform 1002 mounted on top of the second mobile chassis 1001. The second cargo platform 1002 also has multiple drive rollers to meet the requirements of bin transfer.

[0062] In this embodiment, the first mobile chassis 801, the second mobile chassis 1001 and the third mobile chassis 202 can be implemented by an AGV; of course, in other embodiments, each mobile chassis can also adopt other moving mechanisms.

[0063] In this embodiment, a material box buffer area 700 is set above the material box storage area 100, that is, the cache material box is located at the top of the stacked material boxes, does not occupy additional space, and the material box buffer capacity is large; through the cooperation of the material box picking and placing device 200, the top conveying device 800, the lifting device 900 and the bottom transfer device 1000, the transfer of material boxes to be stored and the material boxes to be shipped out are realized, the processes are processed step by step, and each process is processed by the corresponding device, which is more efficient.

[0064] This embodiment also provides another stacked container storage system, as shown in FIG2 . This system differs from the aforementioned stacked container storage system in that the end of the support 102 near the lifting device 900 is connected via a connecting channel 103, the top conveying device 800 is movable on top of the support 102 and the connecting channel 103, and the lifting device 900 is disposed on one side of the connecting channel 103. It should be noted that the remaining structures of the two systems are identical and will not be further described here.

[0065] The top conveying device 800 of this embodiment can shuttle between the outbound cache position and the inbound cache position on the top of each stack through the connecting channel 103, and can transport the material boxes to be outbound to the lifting device 900; it can also lift the lifting device 900 to the top of the material boxes to be inbound and transport them to the inbound cache position.

[0066] Depending on the size and processing capacity of the material box stack, one or more top conveying devices 800 can be set.

[0067] This embodiment provides a stacked material box handling system, including the above-mentioned material box top caching system, and also includes a picking and out-of-warehouse device 300, a material picking device 500, a warehouse management module 600 and a material box automatic warehousing device 400, and the material picking device 500 is arranged between the picking and out-of-warehouse device 300 and the material box automatic warehousing device 400.

[0068] As shown in Figure 9, the picking and dispatching device 300 includes a bin unpacking mechanism 301 and a first conveying mechanism 302. The bin unpacking mechanism 301 is implemented using existing technology and automatically retrieves bins to be dispatched from the bottom transfer device 1000 and automatically destackers stacked bins. The first conveying mechanism 302, which utilizes an existing conveyor structure, conveys single-layer bins to be dispatched to the material picking device 500.

[0069] The material picking device 500 can automatically or manually pick materials from the material boxes to be shipped out and transfer the material boxes; the material picking device 500 is implemented through the existing conveyor line frame and will not be described in detail here.

[0070] The automatic material box storage device 400 can realize the function of automatically transferring single or multiple material boxes to the bottom transfer device 1000, as shown in Figure 10, including a material box stacking mechanism 401 and a second conveying mechanism 402, and the second conveying mechanism 402 is arranged in sequence from one side of the material picking device 500 to the other side; the material box stacking mechanism 401 is realized by adopting existing technology, and it automatically docks with the bottom transfer device 1000, and has a material box stacking function; the second conveying mechanism 402 has the function of transporting the stacked material boxes to be stored from the material picking device 500 to the bottom transfer device 1000.

[0071] The warehouse management device 600 has functions such as receiving orders, analyzing orders, issuing picking tasks, and managing material box storage locations. It is implemented through a computer system and is existing technology, so it will not be described here.

[0072] According to the above description, the workflow of the stacking container handling system provided in this embodiment is as follows:

[0073] 1. Material box outbound process:

[0074] A. The material box picking and placing device 200 enters the material box stacking storage device 100, takes out the material box to be shipped out from the corresponding position according to the instructions issued by the warehouse management module 600, and stacks and caches it on the material box picking and placing device 200.

[0075] B. The material box picking and placing device 200 runs to the material box buffer area 700, places the material boxes to be shipped out on the material box buffer area 700, and automatically plans the unloading position and the number of stacking layers according to the number of material boxes and the idle buffer positions in the material box buffer area 700.

[0076] C. The top conveying device 800 automatically runs to the corresponding cache position of the material box to be shipped in the material box buffer area 700. The fork of the picking mechanism of the top conveying device 800 clamps the single or stacked material box to be shipped and then retracts the fork, automatically transporting the single or stacked material box to be shipped to the docking position at the lifting device 900.

[0077] In the case where a connecting channel 103 is provided between the material box storage areas 100, as shown in Figure 2, the top conveying device 800 can shuttle between the outbound cache position and the inbound cache position above each stack position through the connecting channel 103, and can transport the material box to be shipped out to the lifting device 900; it can also lift the lifting device 900 to the top of the material box to be shipped in and transport it to the inbound cache position.

[0078] D. After the lifting device 900 receives the unloaded material box conveyed by the top conveying device 800, the first loading platform 901 begins to descend, lowering the material box to the docking position of the bottom transfer device 1000. The lifting device 900 then conveys the material box to the bottom transfer device 1000. The bottom transfer device 1000 conveys the unloaded material box to the position of the picking and unloading device 300.

[0079] E. The picking and outbound device 300 automatically docks with the bottom transfer device 1000, and disassembles the single or stacked material boxes to be shipped from the bottom transfer device 1000, and the stacked material boxes into single material boxes, and finally transports them to the material picking device 500 through the first conveying mechanism 302; if the material box to be shipped is a single material box, it is directly transported to the material picking device 500.

[0080] F. The material picking device 500 picks out the required items according to the order prompt information and puts them into the order material box, which is then shipped out of the warehouse via the conveyor line. After sorting, the material box is transported to the automatic material box warehousing device 400 via the conveyor line and waits for storage.

[0081] 2. Process of returning outbound material boxes to the warehouse:

[0082] A. The material box stacking mechanism 401 in the automatic material box storage device 400 stacks single material boxes into stacked material boxes; the stacked material boxes are lifted to the corresponding height position through conveying and lifting.

[0083] B. The automatic container loading device 400 automatically docks with the bottom transfer device 1000. The bottom transfer device 1000 receives individual or stacked containers waiting for loading. The bottom transfer device 1000 transports the containers to the lifting device 900. The lifting device 900 automatically docks with the bottom transfer device 1000, and the transmission rollers on the bottom transfer device 1000 transport the containers to the first loading platform 901 on the lifting device 900.

[0084] C. The lifting device 900 lifts the incoming bin to the top of the support frame, where it docks with the top conveyor device 800. Following instructions from the warehouse management module 600, the top conveyor device 800 docks with the lifting device 900. The forks of the picking mechanism 802 extend to grab the incoming bin and then retract, moving the bin onto the top conveyor device 800. The top conveyor device 800 then moves to the bin buffer area 700 and temporarily stores the single or stacked incoming bins in the buffer area 700.

[0085] During this process, the warehouse management module 600 will autonomously plan the optimal buffer location and control the top conveyor device 800 to reach the corresponding location. At this point, the incoming container has arrived at the buffer location in the container buffer area 700 and is now waiting for the container pick-and-place device 200 to transport the incoming container to its final destination.

[0086] D. The material box picking and placing device 200, according to the instructions of the warehouse management module 600, clamps the material box to be stored in the material box buffer area 700, and places the material box on the support plate 204 of the material box picking and placing device 200 through lifting, rotating and other actions. After the material box picking and placing device 200 carries the material box to be stored to the target storage position of the material box stacking storage device 100, it takes the material box out of the vehicle body and restacks it to the corresponding position of the material box stacking storage device 100; the system can optimize the storage position of the material box at any time according to order requirements.

[0087] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. Industrial Applicability

[0088] In summary, the present disclosure provides a stacking material box storage system and handling system, which can improve the material box storage density without taking up additional space; and the process is processed step by step, which can improve work efficiency.

Claims

1. A stacking material box storage system, characterized in that: include: Container storage area, container loading and unloading device, top conveying device, container buffer area, lifting device and bottom transfer device; The material box storage area is provided with a plurality of intervals, which are configured to vertically stack and store material boxes; The material box buffer area is arranged above the material box storage area, and is configured to temporarily store the material boxes to be shipped out picked by the material box picking and placing device, or to temporarily store the material boxes to be shipped in; A top conveying device is further provided above the material box storage area, and the top conveying device is configured to convey the material boxes to be shipped cached in the material box buffer area to the lifting device; The lifting device is located at one side of the material box storage area and is configured to transport the material boxes to be shipped out to the bottom transfer device.

2. A stacking type material box storage system according to claim 1, characterized in that: The material box buffer area includes a bracket, and the top of the bracket is configured to cache stacked material boxes; the top conveying device is movable on the top of the bracket.

3. A stacking type material box storage system according to claim 2, characterized in that: The bracket is connected to the lifting device at one end thereof through a connecting channel, and the top conveying device can move on the bracket and the top of the connecting channel.

4. A stacking type material box storage system according to any one of claims 1 to 3, characterized in that: The top conveying device includes a first mobile chassis, and a picking mechanism is installed on the top of the first mobile chassis.

5. A stacking type material box storage system according to any one of claims 1 to 4, characterized in that: The lifting device includes a first cargo platform and a lifting drive mechanism connected to the first cargo platform; the first cargo platform is configured to dock with a top conveying device and / or a bottom transfer device.

6. A stacked container storage system according to claim 5, characterized in that: The first cargo platform includes a support frame and a plurality of transmission rollers. The support frame is connected to the lifting drive mechanism, and the plurality of transmission rollers are installed on the support frame.

7. A stacked material box storage system according to claim 5 or 6, characterized in that: The lifting drive mechanism is a chain transmission mechanism or a belt transmission mechanism.

8. A stacked material box storage system according to any one of claims 1 to 7, characterized in that: The bottom transfer device includes a second mobile chassis, and a second cargo platform is installed on the top of the second mobile chassis.

9. A stacked material box storage system according to any one of claims 1 to 8, characterized in that: The material box picking and placing device includes a support frame and a third mobile chassis installed at the bottom of the support frame; the support frame is equipped with several forks, and at least one side of the support frame is provided with multiple support plates, and the support plates are configured to store single-layer or multi-layer material boxes.

10. The stacking type material box storage system according to claim 9, characterized in that: The material box picking and placing device also includes a rotating mechanism and a lifting mechanism. The rotating mechanism is arranged on the third mobile chassis, and the rotating mechanism is connected to the lifting mechanism.

11. The stacked container storage system according to claim 10, characterized in that: The rotating mechanism includes a rotating seat and a rotating motor. The rotating seat is in transmission connection with the third movable chassis, and the rotating motor is connected with the transmission seat.

12. A stacked container storage system according to claim 10 or 11, characterized in that: The lifting mechanism is a chain transmission mechanism or a belt transmission mechanism.

13. A stacked container storage system according to any one of claims 1 to 12, characterized in that: The material box to be stored can be transported by the bottom transfer device to the lifting device, and then transferred by the lifting device to the top conveying device, so that the top conveying device can transport the material box to be stored to the material box buffer area for temporary storage.

14. A stacking material box handling system, characterized in that: It includes a material box top caching system as described in any one of claims 1-13, and also includes an outbound conveying device and a material picking device. The outbound conveying device is configured to dock with a bottom transfer device and transport the material box to be shipped on the bottom transfer device to the material picking device.

15. The stacking type material box handling system according to claim 14, characterized in that: The outbound conveying device includes a material box unpacking mechanism and a first conveying mechanism which are sequentially arranged. The material box unpacking mechanism has the function of unstacking the stacked material boxes to be outbound.

16. A stacking type material box handling system according to claim 14 or 15, characterized in that: It also includes an automatic material box storage device, which is configured to dock with the bottom transfer device and has the function of transferring the material boxes to be stored from the material picking device to the bottom transfer device.

17. The stacking type container handling system according to claim 16, characterized in that: The automatic material box storage device includes a material box stacking mechanism and a second conveying mechanism that are arranged in sequence, and the material box stacking mechanism has a material box stacking function.

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