Lifting conveying line for loading and unloading cartons

Abstract

The utility model relates to the technical field of container loading and unloading, in particular to a lifting conveying line for carton loading and unloading. The utility model provides a lifting conveying line for loading and unloading cartons. The lifting conveying line comprises a front end moving chassis, a tail end moving chassis, a lifting mechanism, a cargo receiving platform and a second conveyor. The lifting mechanism is installed on the front end moving chassis and used for driving the goods receiving platform to ascend and descend. One end of the second conveyor is hinged to the goods receiving platform, and the other end of the second conveyor is hinged to the tail end moving chassis. And when the lifting conveying line is in an unloading state, the second conveyor is used for conveying the cartons on the cargo receiving platform. By means of the lifting conveying line, it can be guaranteed that when cartons are grabbed in containers, the motion stroke of the cartons is reasonable, the conveying route of the cartons is optimized, and therefore the time cost is reduced, and the loading and unloading efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of container loading and unloading, in particular to a lifting conveyor line for loading and unloading cartons. Background Art

[0002] In the past, when loading and unloading cartons inside containers, cigarette boxes were usually moved to a telescopic chain conveyor at a fixed height for transfer by manual handling or conveying by automatic loading and unloading equipment. Specifically, when unloading cartons, people manually removed the cartons from high to low and placed them on the telescopic chain conveyor at a fixed height, or a robotic arm removed the cartons from high to low and placed them on the telescopic chain conveyor at a fixed height. When loading, people manually grabbed the cartons from the telescopic chain conveyor and stacked them from low to high, or a robotic arm grabbed the cartons from the telescopic chain conveyor and stacked them from low to high.

[0003] However, since the height of the telescopic chain conveyor is fixed and cannot be adjusted, whether manual loading and unloading or robotic arm loading and unloading is used, there will be a problem of long transportation routes when grabbing and moving boxes, which needs further optimization. Utility Model Content

[0004] (1) The problem to be solved by the present invention is that since the height of the telescopic chain conveyor is fixed and cannot be adjusted, whether manual loading and unloading or robotic arm loading and unloading is adopted, there will be a problem of a long transportation route when grabbing and moving boxes, which needs further optimization.

[0005] (2) Technical solution

[0006] A lifting conveyor line for loading and unloading cartons, comprising a front-end mobile chassis, a rear-end mobile chassis, a lifting mechanism, a cargo receiving platform, and a second conveyor; the lifting mechanism is mounted on the front-end mobile chassis and is used to drive the cargo receiving platform to rise and fall;

[0007] One end of the second conveyor is hinged to the cargo receiving platform, and the other end is hinged to the tail end movable chassis;

[0008] When the lifting conveyor line is in the unloading state, the second conveyor is used to transport the cartons on the receiving platform; when the lifting conveyor line is in the loading state, the second conveyor is used to transport the cartons to the receiving platform.

[0009] According to one embodiment of the present invention, the front-end mobile chassis and the rear-end mobile chassis are arranged in a first direction, the receiving platform includes a first conveyor, the first conveyor has a roller conveying mechanism and a turning conveying mechanism, the roller conveying mechanism and the turning conveying mechanism are arranged in a second direction, and the roller conveying mechanism is used to convey the carton in the second direction;

[0010] One end of the second conveyor is hinged to an end of the turning conveyor mechanism away from the roller conveyor mechanism; when the lifting conveyor line is in an unloading state, the turning conveyor mechanism is used to convey the cartons on the roller conveyor mechanism to the second conveyor; when the lifting conveyor line is in a loading state, the turning conveyor mechanism is used to convey the cartons on the second conveyor to the roller conveyor mechanism;

[0011] The first direction and the second direction are perpendicular to each other.

[0012] According to one embodiment of the present invention, the front-end mobile chassis includes a first mobile frame arranged along the second direction, and a plurality of universal wheels and at least one steering wheel are installed at the bottom of the first mobile frame.

[0013] According to one embodiment of the present invention, the bottom of the tail end mobile chassis has a plurality of universal wheels and at least one steering wheel.

[0014] According to one embodiment of the present invention, the lifting mechanism includes a scissor-fork lifter, the bottom end of the scissor-fork lifter is fixedly mounted on the first movable frame, and the top end of the scissor-fork lifter is mounted on the first conveyor.

[0015] According to one embodiment of the present invention, it further includes an electric control cabinet installed on the tail end mobile chassis, and the scissor fork lift is signal-connected to the electric control cabinet.

[0016] According to an embodiment of the present invention, the front-end mobile chassis further includes a second mobile frame connected to the first mobile frame, the first mobile frame and the second mobile frame are perpendicular to each other, and a plurality of universal wheels are installed at the bottom of the second mobile frame.

[0017] According to one embodiment of the present invention, the first conveyor includes a mounting frame, the roller conveying mechanism includes a plurality of rollers, the plurality of rollers are arranged along the second direction and mounted in the mounting frame, and the rollers extend along the first direction.

[0018] According to one embodiment of the present invention, the turning conveying mechanism includes a plurality of one-to-one corresponding first rollers and second rollers, and the first rollers and the corresponding second rollers are perpendicular to each other; the plurality of first rollers are arranged along the second direction, and their lengths gradually decrease, and the plurality of second rollers are arranged along the first direction, and their lengths gradually increase.

[0019] According to one embodiment of the present invention, the second conveyor is a belt conveyor.

[0020] Beneficial effects of the utility model:

[0021] When using this lifting conveyor line to unload cartons from a container, the height of the receiving platform can be adjusted by the lifting mechanism, so that the receiving platform can always maintain a reasonable distance from the height of the cartons to be unloaded, so that workers or robotic arms can quickly place the cartons to be unloaded on the receiving platform. This greatly shortens the time it takes for workers to move the cartons to the receiving platform, reduces the workers' labor burden, and improves unloading efficiency. It can also shorten the unloading stroke of the robotic arm. When the robotic arm places the cartons to be unloaded on the receiving platform, the amplitude of its movement is greatly reduced, thus also improving unloading efficiency. When using this lifting conveyor line to load a container, the receiving platform rises to the height of one carton for each layer stacked by the worker or robotic arm. The receiving platform always maintains a reasonable distance from the stacking position, which reduces the workers' labor burden, shortens the loading stroke of the robotic arm, and improves the loading efficiency of the workers or robotic arm.

[0022] Therefore, whether manual loading and unloading or loading and unloading with a robotic arm is used, this lifting conveyor line can ensure that the movement of the cartons in the container is reasonable, optimize the transportation route of the cartons, thereby reducing time costs and improving loading and unloading efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A first state diagram of the lifting conveyor line provided by an embodiment of the present utility model;

[0025] Figure 2 A second state diagram of the lifting conveyor line provided by an embodiment of the present utility model;

[0026] Figure 3A schematic diagram of the lifting conveyor line provided by an embodiment of the present utility model when loading cargo in a container;

[0027] Figure 4 A structural diagram of a first conveyor provided in an embodiment of the present utility model;

[0028] Figure 5 This is a diagram showing the connection relationship between the first roller body, the fixing seat and the second roller body provided in an embodiment of the present utility model.

[0029] Icons: 1. First mobile frame; 101. Universal wheel; 102. Steering wheel; 2. Second mobile frame; 3. Scissor lift; 4. First conveyor; 5. Roller conveying mechanism; 501. Roller; 6. Turning conveying mechanism; 601. First roller body; 602. Second roller body; 603. Fixed seat; 7. Second conveyor; 8. Tail end mobile chassis; 9. Electric control cabinet; 10. Container; 11. Robotic arm; 12. Carton. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figure 1-Figure 5 As shown, one embodiment of the present invention provides a lifting conveyor line for loading and unloading cartons 12, comprising a front-end mobile chassis, a rear-end mobile chassis 8, a lifting mechanism, a receiving platform and a second conveyor 7; the lifting mechanism is mounted on the front-end mobile chassis, and is used to drive the receiving platform to rise and fall;

[0032] One end of the second conveyor 7 is hinged to the receiving platform, and the other end is hinged to the tail-end mobile chassis 8; when the lifting conveyor line is in the unloading state, the second conveyor 7 is used to convey the cartons 12 on the receiving platform; when the lifting conveyor line is in the loading state, the second conveyor 7 is used to convey the cartons 12 to the receiving platform.

[0033] It should be noted that in the past, manual or robotic arms 11 were used in conjunction with a fixed-height telescopic chain conveyor to unload or load cartons into the container 10. When unloading cartons 12, one end of the telescopic chain conveyor was directed toward the door of the container 10. Then, manual unloading or robotic arm 11 was used to remove cartons 12 from the door of the container 10 in descending order and place them on the fixed-height telescopic chain conveyor. The telescopic chain conveyor was then extended to move toward the interior of the container 10, and unloading was performed again until all cartons 12 were unloaded. When loading, manual or robotic arms 11 grabbed cartons 12 on the telescopic chain conveyor and stacked them in descending order.

[0034] However, when unloading by hand, cartons 12 on the upper and lower levels need to be constantly placed on the fixed-height telescopic chain conveyor. When loading by hand, cartons 12 on the fixed-height telescopic chain conveyor need to be constantly stacked in ascending order. This results in high labor intensity for workers, long loading and unloading times, and low loading and unloading efficiency. When unloading by a robotic arm 11, the robotic arm 11 has a large travel range, which also results in long loading and unloading times and low loading and unloading efficiency.

[0035] In this embodiment, when using this lifting conveyor line for unloading, first the front-end mobile chassis and the rear-end mobile chassis 8 work together to move the lifting conveyor line to the working area near the door of the container 10, and then the lifting mechanism is used to drive the receiving platform to move up to the bottom plane position of the top row of cartons 12 in the container 10. As the height of the receiving platform increases, the height of the second conveyor 7 near the receiving platform gradually increases. At this time, the top row of cartons 12 near the door of the container 10 can be placed on the receiving platform by the robotic arm 11 or by manual dragging, and then the second conveyor 7 transports the cartons 12 on the receiving platform to subsequent equipment (such as a mobile assembly line, etc.). After the top row of cartons 12 near the door is unloaded, the lifting mechanism drives the receiving platform to descend the height of one layer of cartons 12 to the bottom height of the next layer of cartons 12, and then the robotic arm 11 or manual dragging is used to place the cartons 12 on the receiving platform again. The above process is then repeated until the lifting mechanism reaches the lowest position, and finally the bottom layer of cartons 12 near the container door is placed on the receiving platform. After all the cartons 12 near the container door are transported away, the front mobile chassis and the rear mobile chassis 8 work together to move the lifting conveyor line toward the interior of the container 10 until it advances to the next unloading surface to continue unloading.

[0036] When using this lifting conveyor line for loading, first the front-end mobile chassis and the rear-end mobile chassis 8 work together to move the lifting conveyor line to the deepest part close to the container 10. At this time, the receiving platform is at the lowest position. Then the worker moves the carton 12 to the second conveyor 7. The second conveyor 7 transports the carton 12 to the receiving platform. Then, the carton 12 on the receiving platform is removed by the robotic arm 11 or by manual stacking and stacked in two layers in the deepest area of the container 10. Then, the lifting mechanism drives the receiving platform to rise to the height of one carton 12 and continues to stack. The receiving platform rises with the stacking height of the cartons 12 until the highest layer of cartons 12 in the deepest area of the container 10 is full. Then the lifting conveyor line retreats one by one to stack the remaining space to complete the loading of the container 10.

[0037] It can be seen that when the cartons 12 in the container 10 are unloaded using this lifting conveyor line, since the height of the receiving platform can be adjusted by the lifting mechanism, the receiving platform can always maintain a reasonable distance from the height of the cartons 12 to be unloaded, so that workers or the robotic arm 11 can quickly place the cartons 12 to be unloaded on the receiving platform. This greatly shortens the time it takes for workers to move the cartons 12 to the receiving platform, reduces the workers' labor burden, and improves unloading efficiency. It also shortens the unloading stroke of the robotic arm 11. When the robotic arm 11 places the cartons 12 to be unloaded on the receiving platform, the movement range is greatly reduced, thereby also improving unloading efficiency.

[0038] When using this lifting conveyor line to load cargo into the container 10, the worker or the robotic arm 11 stacks one layer, and the receiving platform rises to the height of one carton 12. The receiving platform always maintains a reasonable distance from the stacking position, which can reduce the labor burden of the workers, shorten the loading stroke of the robotic arm 11, and improve the loading efficiency of the workers or the robotic arm 11.

[0039] Therefore, whether manual loading and unloading is adopted or loading and unloading is carried out using a robotic arm 11, this lifting conveyor line can ensure that when grabbing the carton 12 in the container 10, the movement stroke of the carton 12 is reasonable, and the transportation route of the carton 12 is reasonably optimized, thereby reducing time costs and improving loading and unloading efficiency.

[0040] As a preferred embodiment, the front end mobile chassis and the rear end mobile chassis 8 are arranged along the first direction, the receiving platform includes a first conveyor 4, the first conveyor 4 has a roller conveying mechanism 5 and a turning conveying mechanism 6, the roller conveying mechanism 5 and the turning conveying mechanism 6 are arranged along the second direction, and the roller conveying mechanism 5 is used to convey the carton 12 along the second direction. Among them, the first direction is Figure 2 The left and right directions in the second direction are Figure 2Furthermore, the left end of the second conveyor 7 is hinged to the end of the turning conveying mechanism 6 away from the roller conveying mechanism 5, and the right end of the second conveyor 7 is hinged to the top of the tail end moving chassis 8.

[0041] Roller conveying mechanism 5 is used to Figure 2 The carton 12 is transported in the front-to-back direction of the lifting conveyor line, and the function of the turning conveyor mechanism 6 is to change the transport direction of the carton 12. For example, when the lifting conveyor line is in the unloading state, the carton 12 on the roller conveyor mechanism 5 enters the turning conveyor mechanism 6, and the turning conveyor mechanism 6 changes the moving direction of the carton 12 so that the carton 12 changes from front-to-back movement to left-to-right movement, and is thus transported to the second conveyor 7. When the lifting conveyor line is in the loading state, the carton 12 that moves left and right on the second conveyor 7 changes its moving direction to front-to-back movement after passing through the turning conveyor mechanism 6, and thus enters the roller conveyor mechanism 5.

[0042] It should be noted that the length of the first conveyor 4 and the length of the front movable chassis need to be smaller than the width of the container 10 so that the first conveyor 4 and the front movable chassis can enter the container 10 .

[0043] Preferably, the first mobile frame 1 and the second mobile frame 2 are connected to the front mobile chassis, and the first mobile frame 1 and the second mobile frame 2 are perpendicular to each other, forming an "L"-shaped structure. The first mobile frame 1 is equipped with universal wheels 101 at the four corners of the bottom, and a steering wheel 102 is installed at the bottom of the front and rear ends of the first mobile frame 1, and each universal wheel 101 is equipped with a brake. The second mobile frame 2 is equipped with a universal wheel 101 and a steering wheel 102 at the bottom, and each universal wheel 101 is equipped with a brake.

[0044] Furthermore, a steering wheel 102 is installed at the left end of the bottom of the tail end mobile chassis 8, and two universal wheels 101 are installed at the right end, and each universal wheel 101 is installed with a brake.

[0045] It should be noted that the steering wheel 102 is widely used in automated logistics equipment, for example, in an automated guided vehicle (AGV). The steering wheel steering technology enables the AGV to move flexibly in various complex environments. The steering wheel 102 in this application provides driving force and steering, allowing the lifting conveyor line to move and flexibly turn.

[0046] The lifting mechanism can be any one of a motor ball screw module lifting mechanism, a cylinder + chain sprocket lifting mechanism, a scissor lift mechanism, a hydraulic lift mechanism, and a rack and pinion lift mechanism, without specific limitation, as long as it can drive the first conveyor 4 to move up and down. As a preference, this embodiment uses a scissor lift mechanism 3, the bottom end of which is mounted on the first movable frame 1, and the top end of which is mounted on the bottom of the first conveyor 4.

[0047] In this embodiment, if Figure 4 As shown, the first conveyor 4 includes a mounting frame, and the roller conveying mechanism 5 includes a plurality of rollers 501, a plurality of sprockets, a chain and a first motor, wherein the plurality of rollers 501 are arranged along the length of the mounting frame and mounted on the mounting frame, a sprocket is mounted on the same end of each roller 501, and the plurality of sprockets are connected by chain transmission, and the output end of the first motor is connected to the end of one of the rollers 501.

[0048] Furthermore, the turning conveying mechanism 6 includes a plurality of first rollers 601, second rollers 602 and fixed seats 603 corresponding to each other, and the first rollers 601 and the corresponding second rollers 602 are perpendicular to each other. Figure 4 As shown, a plurality of first roller bodies 601 are evenly arranged along the length direction of the mounting frame, and the same end of the first roller bodies 601 are rotatably connected to the inner wall of the mounting frame. Figure 4 The length of the first roller body 601 gradually decreases from the left end to the right end of the mounting frame.

[0049] The plurality of second roller bodies 602 are arranged in sequence along the width direction of the mounting frame, and the same end of the second roller body 602 is rotatably connected to the right end baffle of the mounting frame. Figure 4 The length of the second roller 602 gradually increases from the rear end to the front end of the mounting frame. A horizontal plate is provided in the mounting frame, and a fixing seat 603 is fixedly installed on the horizontal plate. The fixing seat 603 is located between the first roller 601 and the corresponding second roller 602. Specifically, it includes a first plate and a second plate that are perpendicular to each other. The cross section of the fixing seat 603 is L-shaped. One end of the first roller 601 is rotatably connected to the first plate, and one end of the second roller 602 corresponding to the first roller 601 is rotatably connected to the second plate, forming a structure as shown in FIG. Figure 5 The status shown.

[0050] Furthermore, the turning conveyor mechanism 6 also includes a second chain, a second sprocket, and a second motor. A first sprocket is mounted on the end of each first roller 601 away from the fixed base 603, and a second sprocket is mounted on the end of each second roller 602 away from the fixed base 603. The first sprocket on the drum 501 and the first sprocket of the first roller 601 are connected via a first chain transmission, and the second sprockets on the plurality of second rollers 602 are connected via a second chain transmission. The output end of the second motor is connected to one of the second rollers 602.

[0051] It should be noted that the turning conveying mechanism 6 can be replaced by other conveying mechanisms that can change the conveying direction of objects. It should be noted that in the conveying field, there are various types of conveying mechanisms that can change the conveying direction of objects, and no specific restrictions are made here.

[0052] Optionally, the second conveyor 7 can be in the form of roller conveyor, belt conveyor or chain conveyor, preferably a belt conveyor.

[0053] In this embodiment, if Figure 1 and Figure 2 As shown, an electric control cabinet 9 is installed on the tail end mobile chassis 8, and the scissor fork lift 3, the drive motors in each steering wheel 102, the first motor and the second motor are respectively connected to the electric control cabinet 9 for signal connection.

[0054] In this embodiment, in the initial state, the scissor lift 3 is in an unstarted state, at which time the first conveyor 4 is in the lowest position, reaching the state as shown in FIG. Figure 2 The status shown.

[0055] When using this lifting conveyor line for unloading, the electric control cabinet 9 first drives the steering wheel 102 in the front mobile chassis and the rear mobile chassis 8 to move the lifting conveyor line to the working area near the door of the container 10. At this time, the length direction of the first conveyor 4 and the width direction of the container 10 are consistent. Then the electric control cabinet 9 controls the scissor fork lift 3 to drive the first conveyor 4 to move up to the bottom plane position of the top row of cartons 12 of the container 10. Then, the top row of cartons 12 near the door of the container 10 can be placed on the roller conveyor mechanism 5 of the first conveyor 4 by the robotic arm 11 or by manual dragging. The cartons 12 move with the roller conveyor mechanism 5 and enter the turning conveyor mechanism 6, and then enter the second conveyor 7 through the turning conveyor mechanism 6, and finally are transported to the subsequent equipment along the second conveyor 7. After the top layer of cartons 12 near the door are unloaded, the electrical control cabinet 9 controls the scissor lift 3 to drive the first conveyor 4 to descend one layer of cartons 12 to the bottom surface height of the next layer of cartons 12, and then uses the robotic arm 11 or manually drags the cartons 12 on the first conveyor 4 again. The above process is then repeated until the first conveyor 4 reaches the lowest position, and finally the bottom layer of cartons 12 near the door are lifted up and placed on the first conveyor 4. After all the cartons 12 near the door are transported away, the electrical control cabinet 9 drives the steering wheels 102 in the front mobile chassis and the rear mobile chassis 8 to move the lifting conveyor line toward the inside of the container 10 until it advances to the next unloading position to continue unloading.

[0056] When using this lifting conveyor line for loading, first the electric control cabinet 9 drives the steering wheel 102 in the front mobile chassis and the rear mobile chassis 8 to move the lifting conveyor line to the deepest point close to the container 10, that is, to achieve the following Figure 3As shown in the state, the first conveyor 4 is at its lowest position. The worker then moves the carton 12 onto the second conveyor 7, which transports the carton 12 toward the depth of the container 10. The carton 12 then enters the turning conveyor mechanism 6, which changes the direction of movement of the carton 12, allowing the carton 12 to be transported to the roller conveyor mechanism 5. The carton 12 on the roller conveyor mechanism 5 is then removed by the robotic arm 11 or manually stacked and stacked in two layers in the deepest area of the container 10. The electrical control cabinet 9 then controls the scissor lift 3 to drive the first conveyor 4 to rise to the height of one carton 12. The worker or robotic arm 11 continues to stack, and the above steps are repeated until the top layer of cartons 12 is full. After the cartons 12 in the deepest area of the container 10 are stacked, the lifting and conveying lines are gradually retreated to stack the remaining space, completing the loading of the container 10.

[0057] Therefore, whether loading and unloading is done manually or using the robotic arm 11, this lifting conveyor line can ensure that the cartons 12 move within the container 10 within a reasonable range, thereby reducing time costs and improving loading and unloading efficiency. Furthermore, it can improve the adaptability of the loading and unloading system to the internal dimensions of the container 10 and the stacking positions of the cartons 12 when handling the stacking surface of the cartons 12.

[0058] In the description of this utility model, it should be noted that the terms "upper" and "lower" and other terms indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A lifting conveyor line for loading and unloading cartons, characterized in that: It comprises a front-end mobile chassis, a rear-end mobile chassis (8), a lifting mechanism, a cargo receiving platform and a second conveyor (7); the lifting mechanism is installed on the front-end mobile chassis and is used to drive the cargo receiving platform to rise and fall; One end of the second conveyor (7) is hinged to the cargo receiving platform, and the other end is hinged to the tail end movable chassis (8); When the lifting conveyor line is in the unloading state, the second conveyor (7) is used to transport the cartons on the receiving platform; when the lifting conveyor line is in the loading state, the second conveyor (7) is used to transport the cartons to the receiving platform.

2. The lifting conveyor line for loading and unloading cartons according to claim 1 is characterized in that: The front-end movable chassis and the rear-end movable chassis (8) are arranged in a first direction, the receiving platform comprises a first conveyor (4), the first conveyor (4) comprises a roller conveying mechanism (5) and a turning conveying mechanism (6), the roller conveying mechanism (5) and the turning conveying mechanism (6) are arranged in a second direction, and the roller conveying mechanism (5) is used to convey cartons in the second direction; One end of the second conveyor (7) is hinged to an end of the turning conveying mechanism (6) away from the roller conveying mechanism (5); when the lifting conveyor line is in an unloading state, the turning conveying mechanism (6) is used to convey the cartons on the roller conveying mechanism (5) to the second conveyor (7); when the lifting conveyor line is in a loading state, the turning conveying mechanism (6) is used to convey the cartons on the second conveyor (7) to the roller conveying mechanism (5); The first direction and the second direction are perpendicular to each other.

3. The lifting conveyor line for loading and unloading cartons according to claim 2 is characterized in that: The front-end mobile chassis comprises a first mobile frame (1) arranged along the second direction, and a plurality of universal wheels (101) and at least one steering wheel (102) are installed at the bottom of the first mobile frame (1).

4. The lifting conveyor line for loading and unloading cartons according to claim 1, characterized in that: The bottom of the tail end movable chassis (8) is provided with a plurality of universal wheels (101) and at least one steering wheel (102).

5. The lifting conveyor line for loading and unloading cartons according to claim 3 is characterized in that: The lifting mechanism comprises a scissor-fork lift (3), the bottom end of the scissor-fork lift (3) is fixedly mounted on the first movable frame (1), and the top end of the scissor-fork lift (3) is mounted on the first conveyor (4).

6. The lifting conveyor line for loading and unloading cartons according to claim 5, characterized in that: It also includes an electric control cabinet (9) installed on the tail end mobile chassis (8), and the scissor fork lift (3) and the electric control cabinet (9) are signal-connected.

7. The lifting conveyor line for loading and unloading cartons according to claim 3 is characterized in that: The front-end mobile chassis further comprises a second mobile frame (2) connected to the first mobile frame (1), the first mobile frame (1) and the second mobile frame (2) are perpendicular to each other, and a plurality of universal wheels (101) are installed at the bottom of the second mobile frame (2).

8. The lifting conveyor line for loading and unloading cartons according to claim 2, characterized in that: The first conveyor (4) includes a mounting frame, and the roller conveying mechanism (5) includes a plurality of rollers (501). The plurality of rollers (501) are arranged in a second direction and mounted in the mounting frame, and the rollers (501) extend in the first direction.

9. The lifting conveyor line for loading and unloading cartons according to claim 8, characterized in that: The turning conveying mechanism (6) comprises a plurality of one-to-one corresponding first rollers (601) and second rollers (602), wherein the first rollers (601) and the corresponding second rollers (602) are perpendicular to each other; the plurality of first rollers (601) are arranged along the second direction, and their lengths gradually decrease; the plurality of second rollers (602) are arranged along the first direction, and their lengths gradually increase.

10. The lifting conveyor line for loading and unloading cartons according to claim 1, characterized in that: The second conveyor (7) is a belt conveyor.

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