Goods in-out device and unattended warehouse
By designing a combination of weighing components, conveyors, and connecting components, and combining them with automated forklifts and control terminals, the problem of low automation in the import and export of goods in unattended warehouses was solved, realizing the automated separation and merging of goods and empty boxes, and improving operational efficiency.
Patent Information
- Application Number
- CN202423274017.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing unmanned warehouses have a low level of automation at the import and export points, especially in the inability to automatically cycle in and out of cargo containers, resulting in low operational efficiency.
A cargo handling device is designed, comprising a weighing unit, a conveyor, and a connecting unit. The conveyor consists of a first, a second, and a third conveyor, and the connecting unit consists of a first and a second connecting unit. Combined with an automated forklift and a control terminal, the device enables the automated separation and merging of cargo and empty containers.
It has improved the automation level of the cargo loading and unloading device, realized the separate transportation of cargo and empty containers, simplified the operation process, and improved the operation efficiency.
Smart Images
Figure CN223619417U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of warehouses, and in particular relates to a goods entry and exit device and an unmanned warehouse. Background Technology
[0002] For unmanned warehouses, the import and export of goods are automated. Operators only need to input the goods to be retrieved on the control interface, and the automated forklifts in the unmanned warehouse will then automatically retrieve the goods and place them in the designated export location. When goods are put into the warehouse, the relevant information of the goods is input on the control interface, and the goods are placed in the designated import location. The automated forklifts in the unmanned warehouse will then pick up the goods and place them in the designated location within the warehouse. However, the automation level of the import and export of goods in existing unmanned warehouses is relatively low. For unmanned warehouses where goods are stored in boxes, it is not possible to achieve automatic circulation of boxes in and out. This means that operators must classify the boxes into specific locations each time they retrieve goods, and they also need to retrieve the boxes and pack the goods when they are put into the warehouse, resulting in relatively low efficiency. Utility Model Content
[0003] In order to solve the above-mentioned technical problems, one of the objectives of this utility model is to provide a cargo loading and unloading device with a simple structure and a high degree of automation.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows: A cargo loading and unloading device includes a weighing component, a conveyor, and a connecting component. The conveyor includes a first conveyor, a second conveyor, and a third conveyor. The connecting component includes a first connecting component and a second connecting component. The second conveyor is arranged in a left-right direction. The first and third conveyors are both arranged in a front-back direction and are spaced apart behind the second conveyor in a left-right direction. The discharge end of the first conveyor is connected to the inlet end of the second conveyor, and the discharge end of the second conveyor is connected to the inlet end of the third conveyor. The first connecting component is disposed at the junction of the first and second conveyors, and the second connecting component is disposed at the junction of the second and third conveyors. The weighing component is disposed on the second conveyor.
[0005] The beneficial effects of the above technical solution are as follows: When picking up goods, the automated forklift places the cargo box containing the goods at the feed end of the first conveyor, which then transports it from back to front. The first connector transfers the cargo box to the feed end of the second conveyor, which then moves it to the middle. At this point, the operator can pick up the goods, and the cargo box continues to be transported and connected to the third conveyor by the second connector. The third conveyor then transports the cargo box to the discharge end of the third conveyor, where the automated forklift can pick it up. When receiving goods, the automated forklift can retrieve an empty cargo box from the warehouse and transport it to the second conveyor via the first conveyor. The operator can then place the goods inside the cargo box, and the cargo box containing the goods can be transported backward via the third conveyor, where the automated forklift can pick it up and put it into the warehouse.
[0006] The conveyor in the above technical solution further includes a fourth conveyor and a fifth conveyor, and the connecting parts further include a third connecting part and a fourth connecting part. The fourth conveyor is arranged side by side in front of the second conveyor in the left-right direction. The fifth conveyor is arranged in the front-back direction on the side of the first conveyor away from the third conveyor, and its front end is the discharge end. The end of the fourth conveyor away from the third conveyor is its feed end. The discharge end of the fifth conveyor is connected to the feed end of the fourth conveyor, and the discharge end of the fourth conveyor is connected to the feed end of the second conveyor. The third connecting part is arranged at the connection point between the fifth conveyor and the fourth conveyor, and the fourth connecting part is arranged at the connection point between the fourth conveyor and the second conveyor.
[0007] The beneficial effect of the above technical solution is that, when picking up goods, the boxes filled with goods are transported to the second conveyor via the first conveyor, while when receiving goods, the empty boxes are transported to the second conveyor via the fifth and fourth conveyors. This allows the transport paths of the empty boxes sent out of the warehouse to be separated from those of the boxes filled with goods.
[0008] The conveyor described in the above technical solution is a roller conveyor.
[0009] The advantages of the above technical solution are that it has a simple structure and good load-bearing capacity.
[0010] In the above technical solution, the first connecting member and the second connecting member are respectively installed at both ends of the second conveyor.
[0011] The beneficial effect of the above technical solution is that the turning points of the conveying paths of the first conveyor, the second conveyor and the third conveyor can be connected by the first connecting piece and the second connecting piece respectively, which makes the transport of the cargo box at the turning points smoother.
[0012] In the above technical solution, the third and fourth connecting components are respectively disposed at both ends of the fourth conveyor.
[0013] The beneficial effect of the above technical solution is that the turning points of the conveying paths of the fifth, fourth and second conveyors can be connected by the third and fourth connecting parts respectively, which makes the transport of the cargo box at the turning points smoother.
[0014] The weighing component described in the above technical solution includes a first lifting platform, a weighing platform, and multiple brackets. The first lifting platform is located below the middle of the second conveyor, and the weighing platform is located on the lifting end of the first lifting platform. The multiple brackets are arranged on the weighing platform along the front-to-back direction and are spaced apart on the weighing platform along the left-to-right direction. Each bracket is located between any two adjacent rollers of the second conveyor. The first lifting platform is used to drive the weighing platform to move the multiple brackets upward to lift the object on the second conveyor for weighing, or to drive the weighing platform to move the multiple brackets downward to the bottom of the conveying channel of the second conveyor.
[0015] The beneficial effect of the above technical solution is that, when the goods are loaded into the cargo box by the operator, the first lifting platform rises and lifts the cargo box to detach it from the second conveyor, so that the weight of the goods can be known.
[0016] The connecting component in the above technical solution includes a second lifting platform and a belt conveyor. The second lifting platform is located below the corresponding end of the conveyor, and the belt conveyor is located at the lifting end of the second lifting platform. The belt conveyor has multiple conveyor belts arranged in the front-to-back direction and spaced apart in the left-to-right direction. Each conveyor belt is located between any two adjacent rollers of the corresponding conveyor. The second lifting platform is used to drive the belt conveyor to move upward until the upper ends of the multiple conveyor belts are above the conveying channel of the corresponding conveyor, or to drive the belt conveyor to move downward until the upper ends of the multiple conveyor belts are below the conveying channel of the corresponding conveyor.
[0017] The advantages of the above technical solution are: its structure is simple. Since the location of the connecting part is the turning point of the conveyor channel, when the cargo box arrives, the second lifting platform can lift the belt conveyor to receive the cargo box until the cargo box has completely entered the feeding end of the next level conveyor. At this time, the second lifting platform and the belt conveyor can be lowered and reset.
[0018] The belt conveyor described in the above technical solution further includes a base, a drive motor, two rotating shafts, and multiple pulleys. The base is horizontally mounted on the lifting end of the second lifting platform. The two rotating shafts are horizontally arranged in the left-right direction and spaced apart in the front-back direction above the base. Both ends of each rotating shaft are mounted on the base through bearing seats. Multiple pulleys spaced apart in the left-right direction are coaxially fixedly mounted on each rotating shaft. The multiple pulleys at the upper ends of the two rotating shafts correspond one-to-one with each other, and the corresponding two pulleys are aligned front-back and together support one conveyor belt. The drive motor is mounted on the base, and its drive end is connected to any one of the rotating shafts.
[0019] The advantages of the above technical solution are: its structure is simple, which allows multiple conveyor belts to rotate synchronously and in the same direction to connect the cargo boxes.
[0020] The above technical solution also includes a control terminal suspended above the second conveyor, and a barcode scanning probe is provided on the front or rear side of the second conveyor at the position corresponding to the weighing component. The barcode scanning probe, the weighing component, multiple conveyors and multiple connecting components are all electrically connected to the control terminal.
[0021] The beneficial effects of the above technical solution are as follows: when operators pick up or put in goods, they only need to operate the control terminal in front of the second conveyor. A QR code can be set on the side of the cargo box, and when picking up or putting in goods, the scanning probe can scan the code of the cargo box to update the information of the goods inside the cargo box.
[0022] The second objective of this utility model is to provide an unmanned warehouse with a simple structure and a high degree of intelligence.
[0023] To achieve the above objectives, the technical solution of this utility model is as follows: an unmanned warehouse, including the goods entry and exit device as described above.
[0024] The advantages of the above technical solution are: it has a high degree of intelligence, and it is convenient to load and unload goods, while eliminating the need for manual management of the cargo boxes. Attached Figure Description
[0025] Figure 1 This is an elevation view of the cargo loading / unloading device described in Embodiment 1 of this utility model;
[0026] Figure 2 This is an elevation view of the weighing component described in Embodiment 1 of this utility model;
[0027] Figure 3 This is an elevation view of the connector described in Embodiment 1 of this utility model;
[0028] Figure 4This is a top view of the belt conveyor described in Embodiment 1 of this utility model;
[0029] Figure 5 This is a schematic diagram of the transport path of the goods in / out device described in Embodiment 1 of this utility model;
[0030] Figure 6 This is an elevation view of the cargo loading / unloading device described in Embodiment 2 of this utility model;
[0031] Figure 7 This is a schematic diagram of the transport path of the goods in / out device described in Embodiment 1 of this utility model.
[0032] In the diagram: 1. Weighing component; 11. First lifting platform; 12. Weighing platform; 13. Bracket; 2. Conveyor; 2a. First conveyor; 2b. Second conveyor; 2c. Third conveyor; 2d. Fourth conveyor; 2e. Fifth conveyor; 3. Connecting component; 3a. First connecting component; 3b. Second connecting component; 3c. Third connecting component; 3d. Fourth connecting component; 31. Second lifting platform; 32. Belt conveyor; 321. Conveyor belt; 322. Base; 323. Drive motor; 324. Rotating shaft; 325. Pulley; 326. Bearing seat; 4. Control terminal; 5. Barcode scanner. Detailed Implementation
[0033] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will be more clearly described in light of the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0034] Example 1
[0035] like Figures 1-5As shown, this embodiment provides a cargo loading / unloading device, including a weighing component 1, a conveyor 2, and a connecting component 3. The conveyor 2 includes a first conveyor 2a, a second conveyor 2b, and a third conveyor 2c. The connecting component 3 includes a first connecting component 3a and a second connecting component 3b. The second conveyor 2b is arranged in a left-right direction. The first conveyor 2a and the third conveyor 2c are both arranged in a front-back direction and are spaced apart behind the second conveyor 2b in a left-right direction. The discharge end of the first conveyor 2a is connected to the inlet end of the second conveyor 2b, and the discharge end of the second conveyor 2b is connected to the inlet end of the third conveyor 2c. The first connecting component 3a is disposed at the junction of the first conveyor 2a and the second conveyor 2b, and the second connecting component 3b is disposed at the junction of the second conveyor 2b and the third conveyor 2c. At the docking point, the weighing component 1 is installed on the second conveyor 2b. This allows the automated forklift to place the cargo box containing the goods at the feed end of the first conveyor during retrieval. The first conveyor transports the cargo box from back to front, and the first connecting component transfers it to the feed end of the second conveyor. The second conveyor then moves the cargo box to its center, where the operator can retrieve the goods. The cargo box continues to be transported and connected to the third conveyor via the second connecting component. The third conveyor then transports the cargo box to its discharge end, where the automated forklift can retrieve it. Conversely, during receiving, the automated forklift can retrieve an empty cargo box from the warehouse and transport it from the first conveyor to the second conveyor. The operator can then place the goods inside the cargo box. The cargo box containing the goods is then transported backward via the third conveyor, and the automated forklift retrieves it for storage.
[0036] The conveyor 2 described in the above technical solution is a roller conveyor, which has a simple structure and good load-bearing capacity.
[0037] like Figure 1 and Figure 5 As shown, in the above technical solution, the first connecting member 3a and the second connecting member 3b are respectively set at both ends of the second conveyor 2b, so that the turning points of the conveying paths of the first conveyor, the second conveyor and the third conveyor can be connected by the first connecting member and the second connecting member respectively, thus making the conveying of the cargo box at the turning points smoother.
[0038] like Figure 2As shown, the weighing component 1 in the above technical solution includes a first lifting platform 11, a weighing platform 12, and multiple brackets 13. The first lifting platform 11 is located below the middle of the second conveyor 2b, and the weighing platform 12 is located on the lifting end of the first lifting platform 11. The multiple brackets 13 are arranged on the weighing platform 12 in the front-to-back direction and are distributed at intervals in the left-to-right direction on the weighing platform 12. Each bracket 13 is located between any two adjacent rollers of the second conveyor 2b. The first lifting platform 11 is used to drive the weighing platform 12 to move the multiple brackets 13 upward to lift the objects on the second conveyor 2b for weighing, or to drive the weighing platform 12 to move the multiple brackets 13 downward to the bottom of the conveying channel of the second conveyor 2b. In this way, when loading goods, after the operator puts the goods into the cargo box, the first lifting platform rises and lifts the cargo box to detach it from the second conveyor, thus determining the weight of the goods.
[0039] like Figure 3 As shown, the connecting component 3 in the above technical solution includes a second lifting platform 31 and a belt conveyor 32. The second lifting platform 31 is located below the corresponding end of the conveyor 2, and the belt conveyor 32 is located at the lifting end of the second lifting platform 31. The belt conveyor 32 has multiple conveyor belts 321 arranged in the front-to-back direction and spaced apart in the left-to-right direction, and each conveyor belt 321 is located between any two adjacent rollers of the corresponding conveyor 2. The second lifting platform 31 is used to drive the belt conveyor 32 to move upward. The upper ends of the multiple conveyor belts 321 are positioned above the corresponding conveyor channel of the conveyor 2, or the belt conveyor 32 is driven downwards until the upper ends of the multiple conveyor belts 321 are positioned below the corresponding conveyor channel of the conveyor 2. The structure is simple. Since the location of the connecting part is the turning point of the conveyor channel, when the cargo box arrives, the second lifting platform can lift the belt conveyor to receive the delivered cargo box until the cargo box completely enters the feed end of the next level conveyor. At this time, the second lifting platform can lower the belt conveyor to reset.
[0040] like Figure 4As shown, the belt conveyor 32 in the above technical solution also includes a base 322, a drive motor 323, two rotating shafts 324, and multiple pulleys 325. The base 322 is horizontally arranged on the lifting end of the second lifting platform 31. The two rotating shafts 324 are horizontally arranged in the left-right direction and spaced apart in the front-back direction above the base 322. Both ends of each rotating shaft 324 are mounted on the base 322 through bearing seats 326. Multiple pulleys 325 spaced apart in the left-right direction are coaxially fixedly mounted on each rotating shaft 324, and the multiple pulleys 325 at the upper end of the two rotating shafts 324 correspond one-to-one with each other. The corresponding two pulleys 325 are aligned front and back and together support a conveyor belt 321. The drive motor 323 is mounted on the base 322, and its drive end is connected to any one of the rotating shafts 324. Its structure is simple, so that multiple conveyor belts can rotate synchronously and in the same direction to connect the cargo boxes.
[0041] like Figure 1 As shown, the above technical solution also includes a control terminal 4 suspended above the second conveyor 2b, and a barcode scanning probe 5 is provided on the front or rear side of the second conveyor 2b at the position corresponding to the weighing component 1. The barcode scanning probe 5, the weighing component 1, the multiple conveyors 2 and the multiple connecting components 3 are all electrically connected to the control terminal 4. This allows the operator to operate the control terminal only in front of the second conveyor when picking up or loading goods. A QR code can be set on the side of the cargo box, and the barcode scanning probe can scan the cargo box to update the information of the goods inside the cargo box when picking up or loading goods.
[0042] In this embodiment, the operating station is located in front of the second conveyor at the position corresponding to the weighing component, while the barcode scanning probe is located at the upper rear end of the second conveyor at the position corresponding to the weighing component.
[0043] The control terminal is a touch screen industrial computer. In this embodiment, the weighing device only rises to weigh the cargo boxes containing goods when goods are being put into the warehouse.
[0044] In this embodiment, the cargo box is a trough-shaped plastic box (a square box with an open top, all of the same size).
[0045] In this embodiment, a QR code is provided on the rear side of the cargo box.
[0046] In this embodiment, during the picking process, the first and second conveyors deliver the cargo box above the weighing device and pause, allowing the operator to remove the goods from the cargo box. Then, the cargo box continues to be transported to the third conveyor.
[0047] In this embodiment, when goods are received, the fifth, fourth, and second conveyors first send the empty cargo boxes to the top of the weighing device and pause, so that the operator can load the goods into the cargo boxes. Then the cargo boxes continue to be conveyed to the third conveyor.
[0048] In this embodiment, the control terminal is connected to the host computer of the unattended warehouse.
[0049] Example 2
[0050] Same as Example 1, except that, as Figure 6 and Figure 7 As shown, the conveyor 2 further includes a fourth conveyor 2d and a fifth conveyor 2e, and the connecting member 3 further includes a third connecting member 3c and a fourth connecting member 3d. The fourth conveyor 2d is arranged side by side in front of the second conveyor 2b in a left-right direction. The fifth conveyor 2e is arranged in a front-back direction on the side of the first conveyor 2a away from the third conveyor 2c, and its front end is the discharge end. The end of the fourth conveyor 2d away from the third conveyor 2c is its feed end. The discharge end of the fifth conveyor 2e is connected to the feed end of the fourth conveyor 2d. The discharge end of the fourth conveyor 2d is connected to the feed end of the second conveyor 2b. The third connector 3c is located at the connection point between the fifth conveyor 2e and the fourth conveyor 2d. The fourth connector 3d is located at the connection point between the fourth conveyor 2d and the second conveyor 2b. This allows the cargo boxes filled with goods to be transported from the first conveyor to the second conveyor when picking up goods, while empty cargo boxes are transported from the fifth conveyor to the second conveyor when receiving goods. This separates the transport paths of empty cargo boxes and cargo boxes filled with goods from those sent out of the warehouse.
[0051] In the above technical solution, the third connecting member 3c and the fourth connecting member 3d are respectively set at both ends of the fourth conveyor 2d, so that the turning points of the conveying paths of the fifth conveyor, the fourth conveyor and the second conveyor can be connected by the third connecting member and the fourth connecting member respectively, which makes the conveying of the cargo box at the turning points smoother.
[0052] in, Figure 5 and Figure 7 The dashed arrows indicate the direction of cargo reversal at the corresponding connecting points.
[0053] In this embodiment, the second and fourth conveyors have similar structures, with connecting parts at the lower ends of both ends. The only difference is that the length of the fourth conveyor is less than that of the second conveyor.
[0054] Example 3
[0055] This embodiment provides an unmanned warehouse, including a goods entry and exit device as described in Embodiment 1 or Embodiment 2. It has a high degree of intelligence and is convenient for both loading and unloading goods. At the same time, no human management of the cargo boxes is required. The rear ends of the first conveyor, the third conveyor and the fifth conveyor all extend into the warehouse.
[0056] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A cargo loading / unloading device, characterized in that, The system includes a weighing component (1), a conveyor (2), and a connecting component (3). The conveyor (2) includes a first conveyor (2a), a second conveyor (2b), and a third conveyor (2c). The connecting component (3) includes a first connecting component (3a) and a second connecting component (3b). The second conveyor (2b) is arranged in the left-right direction. The first conveyor (2a) and the third conveyor (2c) are both arranged in the front-back direction and are spaced apart in the left-right direction behind the second conveyor (2b). The discharge end of a conveyor (2a) is connected to the feed end of a second conveyor (2b), the discharge end of the second conveyor (2b) is connected to the feed end of a third conveyor (2c), the first connecting member (3a) is disposed at the junction of the first conveyor (2a) and the second conveyor (2b), the second connecting member (3b) is disposed at the junction of the second conveyor (2b) and the third conveyor (2c), and the weighing member (1) is disposed on the second conveyor (2b).
2. The cargo loading / unloading device according to claim 1, characterized in that, The conveyor (2) further includes a fourth conveyor (2d) and a fifth conveyor (2e), and the connecting member (3) further includes a third connecting member (3c) and a fourth connecting member (3d). The fourth conveyor (2d) is arranged side by side in front of the second conveyor (2b) in the left-right direction, and the fifth conveyor (2e) is arranged in the front-back direction on the side of the first conveyor (2a) away from the third conveyor (2c), with its front end being the discharge end. The fourth conveyor (2d) is located away from the third conveyor (2c). One end of the third conveyor (2c) is its feed end. The discharge end of the fifth conveyor (2e) is connected to the feed end of the fourth conveyor (2d). The discharge end of the fourth conveyor (2d) is connected to the feed end of the second conveyor (2b). The third connector (3c) is located at the connection point between the fifth conveyor (2e) and the fourth conveyor (2d). The fourth connector (3d) is located at the connection point between the fourth conveyor (2d) and the second conveyor (2b).
3. The cargo loading / unloading device according to claim 2, characterized in that, The conveyor (2) is a roller conveyor.
4. The cargo loading / unloading device according to claim 3, characterized in that, The first connector (3a) and the second connector (3b) are respectively disposed at both ends of the second conveyor (2b).
5. The cargo loading / unloading device according to claim 3, characterized in that, The third connector (3c) and the fourth connector (3d) are respectively disposed at both ends of the fourth conveyor (2d).
6. The cargo loading / unloading device according to claim 3, characterized in that, The weighing device (1) includes a first lifting platform (11), a weighing platform (12), and multiple brackets (13). The first lifting platform (11) is located below the middle of the second conveyor (2b). The weighing platform (12) is located on the lifting end of the first lifting platform (11). The multiple brackets (13) are arranged on the weighing platform (12) along the front-back direction and are spaced apart on the weighing platform (12) along the left-right direction. Each bracket (13) is located between any two adjacent rollers of the second conveyor (2b). The first lifting platform (11) is used to drive the weighing platform (12) to move the multiple brackets (13) upward to lift the object on the second conveyor (2b) for weighing, or to drive the weighing platform (12) to move the multiple brackets (13) downward to the bottom of the conveying channel of the second conveyor (2b).
7. The cargo loading / unloading device according to claim 4 or 5, characterized in that, The connecting component (3) includes a second lifting platform (31) and a belt conveyor (32). The second lifting platform (31) is located below the corresponding end of the conveyor (2). The belt conveyor (32) is located at the lifting end of the second lifting platform (31). The belt conveyor (32) has multiple conveyor belts (321) arranged in the front-back direction and spaced apart in the left-right direction. Each conveyor belt (321) is located between any two adjacent rollers of the corresponding conveyor (2). The second lifting platform (31) is used to drive the belt conveyor (32) to move upward until the upper end of the multiple conveyor belts (321) is above the conveying channel of the corresponding conveyor (2), or to drive the belt conveyor (32) to move downward until the upper end of the multiple conveyor belts (321) is below the conveying channel of the corresponding conveyor (2).
8. The cargo loading / unloading device according to claim 7, characterized in that, The belt conveyor (32) also includes a base (322), a drive motor (323), two rotating shafts (324), and multiple pulleys (325). The base (322) is horizontally arranged on the lifting end of the second lifting platform (31). The two rotating shafts (324) are both horizontally arranged in the left-right direction and spaced apart above the base (322) in the front-back direction. Both ends of each rotating shaft (324) are mounted on the base (322) through bearing seats (326). On each of the rotating shafts (324), a plurality of pulleys (325) are coaxially fixedly mounted and spaced apart in the left and right direction. The pulleys (325) at the upper ends of the two rotating shafts (324) correspond one to one with each other, and the corresponding two pulleys (325) are aligned front to back and together support a conveyor belt (321). The drive motor (323) is mounted on the base (322), and its drive end is connected to any one of the rotating shafts (324) for transmission.
9. The cargo loading / unloading device according to claim 7, characterized in that, It also includes a control terminal (4) suspended above the second conveyor (2b), and a barcode scanning probe (5) is provided on the front or rear side of the second conveyor (2b) at the position corresponding to the weighing component (1). The barcode scanning probe (5), the weighing component (1), the multiple conveyors (2) and the multiple connectors (3) are all electrically connected to the control terminal (4).
10. An unmanned warehouse, characterized in that, Includes the cargo loading / unloading device as described in any one of claims 1-9.