Unloading device and unloading method for logistics

Abstract

The unloading device for logistics comprises a conveying assembly, a container positioning assembly is arranged at one end of the conveying assembly, the container positioning assembly comprises a positioning plate, a sensor, a sliding block, a sliding groove, a guide shaft, a rear positioning plate connecting rod and a rear positioning plate, the sliding groove is formed in one end of the conveying assembly, and the sensor is arranged at the other end of the conveying assembly. A sliding groove is formed in the lower side of the positioning plate, the symmetrical sliding blocks are arranged in the sliding groove, a guide shaft is arranged in the sliding groove, the conveying assembly is fixed to the two ends of the guide shaft, the guide shaft penetrates through the sliding blocks, and the upper end of each sliding block is fixedly connected with the middle of the lower side of the positioning plate. The invention relates to the technical field of logistics unloading, in particular to an unloading device and an unloading method for logistics, and aims at solving the problems that in the prior art, unloading is conducted by means of the gravity of goods, it cannot be ensured that the goods are stably conveyed downwards in the middle position during unloading, and it cannot be ensured that the stability of the goods is kept in the conveying process.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics unloading, and in particular to a logistics unloading device and an unloading method. Background Art

[0002] In the logistics industry, unloading is a labor-intensive and time-consuming process. Traditional unloading methods usually rely on manual handling, which is not only inefficient but also puts a great burden on the workers' bodies. With the development of automation technology, the demand for automated unloading devices is growing.

[0003] However, existing unloading devices often lack the function of accurate cargo box positioning, which causes the cargo box to easily shift or slide during the unloading process, increasing the risk of cargo damage and the complexity of the operation. After searching, a logistics unloading system and unloading method with publication number CN115973805A were found, including a rotating support structure; two directional pulleys installed on the top of the vertical plate, and two steel wire ropes embedded in the structure of the rotating support structure, each of which is embedded with a steel wire rope that bypasses the directional pulley and swings vertically to the tail of the vertical plate, and the longitudinal swinging ends of the two steel wire ropes are embedded in the upper end surface of a rectangular movable plate.

[0004] The above-mentioned logistics unloading system and unloading method utilize the gravity of the goods themselves so that the goods can be transported downward along the middle placement plate, and when unloading the goods located in the middle placement plate, the speed at which the goods slide downward under the action of their own gravity can be controlled. The device relies on the gravity of the goods themselves to unload the goods, but cannot ensure that the goods are stably in the middle position for downward transmission during unloading. It is necessary to manually ensure that the goods are placed in the middle each time the goods are placed, which is more troublesome and cannot ensure the stability of the goods during transmission. In addition, the height of the above-mentioned device cannot be adjusted. Therefore, it is necessary to develop a device that can accurately position the cargo box and automatically unload the goods. Summary of the invention

[0005] The main purpose of the present invention is to provide a logistics unloading device and unloading method to solve the problem that the prior art relies on the gravity of the goods themselves to unload but cannot ensure that the goods are stably placed in the middle position for downward transmission during unloading, and requires manual work to ensure that the goods are placed in the middle each time, and cannot ensure the stability of the goods during transportation.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The unloading device for logistics comprises a conveying assembly, one end of the conveying assembly is provided with a cargo box positioning assembly, and the cargo box positioning assembly comprises a positioning plate, a sensor, a slider, a slide groove, a guide shaft, a rear positioning plate connecting rod, and a rear positioning plate, the slide groove is opened at one end of the conveying assembly, the slide groove is provided with a symmetrical slider, the slide groove is provided with a guide shaft, the two ends of the guide shaft are fixed with the conveying assembly, the guide shaft passes through the slider, the upper end of each slider is respectively fixedly connected to the middle part of the lower side of the positioning plate, and the opposite side of the positioning plate is respectively provided with a sensor, the rear end of each positioning plate is respectively rotatably connected to one end of the rear positioning plate connecting rod, the other end of each rear positioning plate connecting rod is respectively rotatably connected to one end of the upper side of the rear positioning plate, and the lower end of each rear positioning plate is respectively rotatably connected to the transmission assembly;

[0008] It also includes a controller, which communicates data with a sensor. The sensor is a pressure sensor, which is used to monitor the position of the cargo box. The sensor is subjected to pressure only after it contacts the cargo box, so that the sensor contacts the cargo box when following the movement of the positioning plate. When the pressure values ​​felt by the sensors on both sides are the same or are within the set threshold, it means that the position of the cargo box on the conveying component is appropriate, and the controller can control the operation of the conveying component.

[0009] As a further definition of the present technical solution, the transmission assembly includes a first motor, a transmission roller, a support frame, a connecting rod and a connecting rod support rod, the two sides of the support frame are respectively rotatably connected to the central axes of several evenly arranged transmission rollers, the transmission rollers are arranged in the support frame, one end of the central axis of each transmission roller is respectively fixedly connected to one end of the connecting rod, the other ends of all the connecting rods are rotatably connected to the connecting rod support rod, one side of the other end of the support frame is fixedly connected to the first motor, the output shaft of the first motor is fixedly connected to the corresponding end of the central axis of the transmission roller, the slide groove is provided on the lower side of one end of the support frame, the support frame fixes the guide shaft, and the upper parts of the two sides of the support frame are respectively rotatably connected to the end of the lower side of the rear positioning plate;

[0010] As a further limitation of the present technical solution, the cross-sections at both ends of the transmission roller are larger than the central cross-section, and the cross-sections at both ends of the transmission roller are the same in size.

[0011] As a further limitation of the present technical solution, the slider is connected to a drive assembly, and the drive assembly includes a rotating wheel, a boss, a driving rod, a motor bracket and a second motor. The second motor is fixed to the lower side of the support frame through the motor bracket, and the output shaft of the second motor is fixedly connected to the center of the rotating wheel. The bosses are symmetrically fixed at the lower edge position of the rotating wheel, and each of the bosses is respectively rotatably connected to one end of the driving rod, and the other end of each driving rod is respectively rotatably connected to the lower side of the corresponding slider.

[0012] As a further limitation of the present technical solution, the support frame is connected to the support seat through an angle adjustment assembly, the angle adjustment assembly includes a connecting block, a first hydraulic cylinder, a slot and a connecting frame, the other end of the support frame is rotatably connected to the support seat on both sides, the connecting block is fixed on the lower side of the support frame near the other end, the connecting block is rotatably connected to the movable end of the first hydraulic cylinder, the fixed end of the first hydraulic cylinder is rotatably connected to the connecting frame, the connecting frame is fixed on the lower side of the support seat, the support seat is provided with the slot, the slot is used for the first hydraulic cylinder to pass through, so as to avoid interference between the first hydraulic cylinder and the support frame.

[0013] As a further limitation of the present technical solution, the lower side of the support seat is connected to a lifting assembly, and the lifting assembly is connected to a base. The lifting assembly includes a swing rod, a first reinforcing rod, a limit block, a guide rod, a second reinforcing rod and a second hydraulic cylinder. The guide rods are two and symmetrically arranged, and the two ends of each guide rod are rotatably connected to one end of both sides of the two swing rods, wherein the other ends of the two swing rods are rotatably connected to the lower side of the support seat, and the other ends of the other two swing rods are rotatably connected to the base, the upper swing rod, the support seat and the guide rod form a parallelogram structure, and the lower swing rod, the guide rod and the base form a parallelogram structure, and each guide rod is divided into The cam is connected to the support frame by the two opposite sides of the two limit blocks, and the two sides of the upper end of the two limit blocks are rotatably connected to the support frame, and the rotation connection axis of the first reinforcement rod and the support frame is the same as the rotation connection axis of the swing rod and the support frame, and the other side of each limit block is rotatably connected to the upper ends of the two sides of the second reinforcement rod, and the other end of the second reinforcement rod is rotatably connected to the corresponding two sides of the lower part of the swing rod, and the upper center of one swing rod is rotatably connected to the movable end of the second hydraulic cylinder, and the fixed end of the second hydraulic cylinder is rotatably connected to the base.

[0014] As a further limitation of the present technical solution, the controller is electrically connected to the first motor, the second motor, the first hydraulic cylinder and the second hydraulic cylinder.

[0015] A method for unloading a logistics unloading device, comprising the following steps:

[0016] Step 1: Adjust the overall height through the lifting assembly;

[0017] Step 2: According to the height of the cargo compartment of the truck, adjust the inlet end of the transmission component to connect to the cargo compartment through the angle adjustment component;

[0018] Step 3: The controller controls the driving component to drive the two positioning plates of the cargo box positioning component to separate to a distance greater than the cargo box. A unloader places the cargo box on the transmission roller of the conveying component. The cargo box is blocked by the rear positioning plate. The two positioning plates of the cargo box positioning component are moved closer to each other through the driving component until the two positioning plates are against both sides of the cargo box. During this process, the cargo box will move under the push of the positioning plate on the closer side. The sensor monitors the pressure it feels in real time. When both sides of the cargo box are against the two positioning plates and the pressure values ​​felt by the two sensors are the same or are within the set threshold, it means that the position of the cargo box on the conveying component is appropriate. At this time, the cargo box is at the center of one end of the conveying component. The controller controls the driving component to move the slider in the opposite direction, driving the positioning plates away from each other while driving the two rear positioning plates to swing in the opposite direction and no longer against the rear side of the cargo box. When the distance between the positioning plates is greater than the cargo box distance and the two rear positioning plates do not block the cargo box, the driving component stops working and controls the conveying component to work. Under the action of the transmission roller and gravity, the cargo box moves down to the cargo box baffle.

[0019] Step 4: Another staff member takes the box away.

[0020] The present invention has the following beneficial effects:

[0021] The second motor can drive the rotating wheel to rotate, the rotating wheel can drive the convex column to rotate, the convex column drives the driving rod to move, the driving rod can drive the slider to move, the slider moves along the guide shaft in the slide slot to drive the positioning plate to move, the positioning plate rotates to connect the rear positioning plate connecting rod, the rear positioning plate connecting rod rotates to connect the rear positioning plate, the rear positioning plate rotates to connect the transmission component, when the positioning plate moves, the rear positioning plate connecting rod follows the movement, and then drives the rear positioning plate rotatably connected to it to swing, realizes the blocking and release of the cargo box by the rear positioning plate, and the coordinated use of the positioning plate and the sensor realizes the automatic centering positioning of the cargo box, reduces the workload of manual adjustment of the cargo box position, improves the unloading efficiency, and the sensor monitors the cargo box position in real time. When the pressure values ​​felt by the sensors on both sides are the same, the controller confirms that the cargo box position is appropriate, thereby ensuring the stability and safety of the cargo box during the transmission process;

[0022] The first motor of the transmission assembly can drive the transmission roller to rotate, the transmission roller drives the connecting rod to rotate, the connecting rod drives the connecting rod support rod to circulate, and then drives other connecting rods to rotate, so that the transmission roller fixed to the connecting rod rotates, and the rotation of the transmission roller can drive the cargo box to move. The cross-sections at both ends of the transmission roller are larger than the central cross-section, which can play a stabilizing role when the cargo box moves, and prevent the cargo box from deviating greatly when sliding down;

[0023] Through the lifting components and angle adjustment components, the device can adapt to truck cargo compartments of different heights and angles, and has good adaptability and flexibility. The automated unloading process reduces dependence on manual labor, reduces labor intensity, and at the same time reduces the risk of cargo damage caused by improper manual operation. It can operate continuously, significantly improves the unloading speed, shortens the unloading time, and improves logistics efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The structure of a logistics unloading device and unloading method of the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 The structure of a logistics unloading device and unloading method of the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 A logistics unloading device and unloading method of the present invention Figure 2 A partial enlarged view of the middle A;

[0027] Figure 4 The structure of a logistics unloading device and unloading method of the present invention is shown in FIG. Figure 3 ;

[0028] Figure 5 A logistics unloading device and unloading method of the present invention Figure 4 A partial enlarged view of point B in the middle;

[0029] Figure 6 The structure of a logistics unloading device and unloading method of the present invention is shown in FIG. Figure 4 ;

[0030] Explanation of reference numerals: 1. Conveying assembly, 11. First motor, 12. Conveying roller, 13. Support frame, 14. Connecting rod, 15. Connecting rod support rod, 2. Angle adjustment assembly, 21. Connecting block, 22. First hydraulic cylinder, 23. Slot, 24. Connecting frame, 3. Lifting assembly, 31. Swinging rod, 32. First reinforcing rod, 33. Limiting block, 34. Guide rod, 35. Second reinforcing rod, 3. Second hydraulic cylinder, 4. Driving assembly, 41. Rotating wheel, 42. Boss, 43. Driving rod, 44. Motor bracket, 45. Second motor, 5. Cargo box positioning assembly, 51. Positioning plate, 52. Sensor, 53. Slider, 54. Slide, 55. Guide shaft, 56. Rear positioning plate connecting rod, 57. Rear positioning plate, 6. Cargo box baffle, 7. Support seat, 8. Base. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] like Figure 1-Figure 6 As shown, this embodiment provides an embodiment of a logistics unloading device. In this embodiment, a logistics unloading device includes a conveying component 1, and a cargo box positioning component 5 is arranged at one end of the conveying component 1. The cargo box positioning component 5 includes a positioning plate 51, a sensor 52, a slider 53, a slide 54, a guide shaft 55, a rear positioning plate connecting rod 56, and a rear positioning plate 57. The slide 54 is opened at one end of the conveying component 1, and symmetrical sliders 53 are arranged in the slide 54. The guide shaft 55 is arranged in the slide 54. The conveying component 1 is fixed at both ends of the guide shaft 55, and the guide shaft 55 passes through the slider 53. The upper end of each slider 53 is respectively fixedly connected to the middle part of the lower side of the positioning plate 51, and the opposite side of the positioning plate 51 is respectively provided with a sensor 52. The rear end of each positioning plate 51 is respectively rotatably connected to one end of the rear positioning plate connecting rod 56, and the other end of each rear positioning plate connecting rod 56 is respectively rotatably connected to the upper end of the rear positioning plate 57, and the lower end of each rear positioning plate 57 is respectively rotatably connected to the conveying component 1;

[0033] The slider 53 is connected to the driving assembly 4;

[0034] It also includes a controller, and the controller and sensor 52 perform data communication. Sensor 52 is a pressure sensor, which is used to monitor the position of the cargo box. The characteristic that the sensor 52 starts to be subjected to pressure only after it contacts the cargo box is realized, so that the sensor 52 contacts the cargo box when following the movement of the positioning plate 51. When the pressure values ​​felt by the sensors 52 on both sides are the same or are within the set threshold, it means that the position of the cargo box on the conveying component 1 is appropriate, and the controller can control the conveying component 1 to work.

[0035] In this embodiment, the cargo box can be centered by the cargo box positioning assembly 5, the driving assembly 4 controls the movement of the slider 53, the slider 53 moves along the guide shaft 55 in the slide groove 54, and can drive the positioning plate 51 to move, the positioning plate 51 is rotatably connected to the rear positioning plate connecting rod 56, the rear positioning plate connecting rod 56 is rotatably connected to the rear positioning plate 57, the rear positioning plate 57 is rotatably connected to the transmission assembly 1, when the positioning plate 51 moves, the rear positioning plate connecting rod 56 follows the movement, and then drives the rear positioning plate 57 connected to it to swing, when the cargo box positioning assembly 5 is used for positioning, first control the driving assembly 4 to make the distance between the positioning plates 51 larger than the cargo box, the cargo box is placed at one end of the transmission assembly 1, the rear side of the cargo box is against the rear positioning plate 57, the cargo box is located between the positioning plates 51, and the driving assembly 4 is controlled to make the positioning plates 51 approach each other until the two positioning plates 51 both press against the two sides of the cargo box. During this process, the cargo box will move under the push of the positioning plate 51 on the closer side, and the sensor 52 monitors the pressure it feels in real time. When both sides of the cargo box are pressed against by the two positioning plates 51 and the pressure values ​​felt by the two sensors 52 are the same or are within the set threshold value, it means that the position of the cargo box on the conveying component 1 is appropriate. At this time, the cargo box is at the center of one end of the conveying component 1, and the controller controls the driving component 4 to move the slider 53 in the opposite direction, driving the positioning plates 51 away from each other while driving the two rear positioning plates 57 to swing in the opposite direction and no longer press against the rear side of the cargo box. When the distance between the positioning plates 51 is greater than the cargo box distance and the two rear positioning plates 57 do not block the cargo box, the driving component 4 stops working and the cargo box can move on the conveying component 1.

[0036] The transmission assembly 1 includes a first motor 11, a transmission roller 12, a support frame 13, a connecting rod 14 and a connecting rod support rod 15. The two sides of the support frame 13 are rotatably connected to the central axes of several uniformly arranged transmission rollers 12. The transmission rollers 12 are arranged in the support frame 13. One end of the central axis of each transmission roller 12 is fixedly connected to one end of the connecting rod 14, and the other ends of all the connecting rods 14 are rotatably connected to the connecting rod support rod 15. One side of the other end of the support frame 13 is fixedly connected to the first motor 11, and the output shaft of the first motor 11 is fixedly connected to the end of the central axis of the corresponding transmission roller 12. A slide groove 54 is arranged on the lower side of one end of the support frame 13, and the guide shaft 55 is fixed to the support frame 13. The upper parts of the two sides of the support frame 13 are rotatably connected to the lower end of the rear positioning plate 57.

[0037] The cross sections at both ends of the transmission roller 12 are larger than the central cross section, and the cross sections at both ends of the transmission roller 12 are the same in size.

[0038] In this embodiment, the first motor 11 can drive the transmission roller 12 to rotate, the transmission roller 12 drives the connecting rod 14 to rotate, the connecting rod 14 drives the connecting rod support rod 15 to circulate, and then drives other connecting rods 14 to rotate, so that the transmission roller 12 fixed to the connecting rod 14 rotates, and the rotation of the transmission roller 12 can drive the cargo box to move;

[0039] The cross-sections at both ends of the transmission roller 12 are larger than the central cross-section, which can play a stabilizing role when the cargo box moves and prevent the cargo box from deviating significantly when sliding downward.

[0040] The driving assembly 4 includes a rotating wheel 41, a boss 42, a driving rod 43, a motor bracket 44 and a second motor 45. The second motor 45 is fixed to the lower side of the support frame 13 through the motor bracket 44. The output shaft of the second motor 45 is fixedly connected to the center of the rotating wheel 41. The lower edge of the rotating wheel 41 is fixed with symmetrical bosses 42. Each boss 42 is rotatably connected to one end of the driving rod 43, and the other end of each driving rod 43 is rotatably connected to the lower side of the corresponding slider 53.

[0041] In this embodiment, the second motor 45 can drive the rotating wheel 41 to rotate, the rotating wheel 41 can drive the boss 42 to rotate, the boss 42 drives the driving rod 43 to move, and the driving rod 43 can drive the slider 53 to move.

[0042] The support frame 13 is connected to the support seat 7 through the angle adjustment component 2. The angle adjustment component 2 includes a connecting block 21, a first hydraulic cylinder 22, a slot 23 and a connecting frame 24. The other end of the support frame 13 is rotatably connected to the support seat 7 on both sides. The connecting block 21 is fixed on the lower side of the support frame 13 near the other end. The connecting block 21 is rotatably connected to the movable end of the first hydraulic cylinder 22. The fixed end of the first hydraulic cylinder 22 is rotatably connected to the connecting frame 24. The connecting frame 24 is fixed to the lower side of the support seat 7. A slot 23 is provided on the support seat 7. The slot 23 is used for the first hydraulic cylinder 22 to pass through to avoid interference between the first hydraulic cylinder 22 and the support frame 13.

[0043] In this embodiment, the setting of the angle adjustment component 2 can adjust the overall angle of the transmission component 1. Since the movable end of the first hydraulic cylinder 22 is rotatably connected to the connecting frame 24, the fixed end of the first hydraulic cylinder 22 is rotatably connected to the connecting frame 24. The movable rod of the first hydraulic cylinder 22 can drive the connecting block 21 to move through the extension and retraction of the movable rod of the first hydraulic cylinder 22, and the connecting block 21 drives the support frame 13 to swing. The first hydraulic cylinder 22 will also swing when the support frame 13 swings, thereby realizing the angle adjustment of the support frame 13, and the angle between the support frame 13 and the ground can be adjusted according to the height of the cargo compartment of the truck.

[0044] The lower side of the support seat 7 is connected to the lifting assembly 3, and the lifting assembly 3 is connected to the base 8. The lifting assembly 3 includes a swing rod 31, a first reinforcing rod 32, a limit block 33, a guide rod 34, a second reinforcing rod 35 and a second hydraulic cylinder 36. The guide rods 34 are two and symmetrically arranged. The two ends of each guide rod 34 are respectively rotatably connected to one end of the two sides of the two swing rods 31, wherein the other ends of the two swing rods 31 are respectively rotatably connected to the lower side of the support seat 7, and the other ends of the other two swing rods 31 are respectively rotatably connected to the base 8. The upper swing rod 31, the support seat 7 and the guide rod 34 form a parallelogram structure, and the lower swing rod 31, the guide rod 34 and the base 8 form a parallelogram structure. Each guide rod 34 is respectively penetrated Through the limit block 33, each limit block 33 can slide along the corresponding guide rod 34, and the opposite sides of the two limit blocks 33 are respectively rotatably connected to the two sides of the lower end of the first reinforcement rod 32, and the two sides of the upper end of the first reinforcement rod 32 are respectively rotatably connected to the support seat 7. The rotation connection axis of the first reinforcement rod 32 and the support seat 7 is the same as the rotation connection axis of the swing rod 31 and the support seat 7. The other side of each limit block 33 is respectively rotatably connected to the upper ends of the two sides of the second reinforcement rod 35, and the other end of the second reinforcement rod 35 is respectively rotatably connected to the two sides of the lower part of the corresponding swing rod 31. The upper center of a swing rod 31 is rotatably connected to the movable end of the second hydraulic cylinder 36, and the fixed end of the second hydraulic cylinder 36 is rotatably connected to the base 8.

[0045] In this embodiment, the telescopic movable end of the second hydraulic cylinder 36 can drive the swing rod 31 to swing, the swing rod 31 drives the guide rod 34 to move and the second reinforcing rod 35 to swing, the guide rod 34 drives the remaining swing rods 31 to swing, the second reinforcing rod 35 drives the limit block 33 to move along the guide rod, and the limit block 33 drives the first reinforcing rod 32 to swing. Under the joint action of the swing rod 31, the first reinforcing rod 32 and the second reinforcing rod 35, the lifting and lowering of the support seat 7 is realized, and then the lifting and lowering of the conveying component 1 and the cargo box positioning component 5 are realized.

[0046] The controller is electrically connected to the first motor 11 , the second motor 45 , the first hydraulic cylinder 22 , and the second hydraulic cylinder 36 .

[0047] Further, the support frame 13 is rotatably connected to the upper side of one end of the support seat 7, and a cargo box baffle 6 is fixed.

[0048] When in use, first adjust the overall height through the lifting component 3, and adjust the entrance end of the transmission component 1 to the cargo compartment according to the height of the cargo compartment of the truck through the angle adjustment component. The controller controls the driving component 4 to drive the two positioning plates 51 of the cargo box positioning component 5 to separate to a distance greater than the cargo box. A unloader puts the cargo box on the transmission roller 12 of the conveying component 1, and the cargo box is blocked by the rear positioning plate 57. The two positioning plates 51 of the cargo box positioning component 5 are moved closer to each other through the driving component 4 until the two positioning plates 51 are against both sides of the cargo box. During this process, the cargo box will move under the push of the positioning plate 51 on the closer side, and the sensor 52 monitors the pressure felt in real time. When both sides of the cargo box are pressed by the two positioning plates 51 and the two When the pressure values ​​sensed by the sensors 52 are the same or are all within the set thresholds, it means that the position of the cargo box on the conveying component 1 is appropriate. At this time, the cargo box is at the center of one end of the conveying component 1. The controller controls the driving component 4 to make the slider 53 move in the opposite direction, driving the positioning plates 51 away from each other while driving the two rear positioning plates 57 to swing in the opposite direction and no longer against the rear side of the cargo box. When the distance between the positioning plates 51 is greater than the cargo box distance and the two rear positioning plates 57 do not block the cargo box, the driving component 4 stops working and controls the conveying component 1 to work. Under the action of the transmission roller 12 and gravity, the cargo box moves down to the cargo box baffle 6, and another staff member can take the cargo box away. The above process is repeated until all cargo boxes are unloaded.

[0049] The present invention also discloses a method for unloading a logistics unloading device, comprising the following steps:

[0050] Step 1: Adjust the overall height through the lifting component 3;

[0051] Step 2: According to the height of the cargo compartment of the truck, adjust the inlet end of the transmission component 1 to connect to the cargo compartment through the angle adjustment component;

[0052] Step 3: The controller controls the driving component 4 to drive the two positioning plates 51 of the cargo box positioning component 5 to separate to a distance greater than the cargo box. A loader places the cargo box on the transmission roller 12 of the conveying component 1. The cargo box is blocked by the rear positioning plate 57. The two positioning plates 51 of the cargo box positioning component 5 are moved closer to each other through the driving component 4 until the two positioning plates 51 are against both sides of the cargo box. During this process, the cargo box will move under the push of the positioning plate 51 on the side closer to the cargo box. The sensor 52 monitors the pressure felt in real time. When both sides of the cargo box are pressed by the two positioning plates 51 and the two sensors 52 sense When the pressure values ​​are the same or within the set threshold, it means that the position of the cargo box on the conveying assembly 1 is appropriate. At this time, the cargo box is at the center of one end of the conveying assembly 1. The controller controls the driving assembly 4 to make the slider 53 move in the opposite direction, driving the positioning plates 51 away from each other while driving the two rear positioning plates 57 to swing in the opposite direction and no longer press against the rear side of the cargo box. When the distance ratio between the positioning plates 51 is greater than the cargo box distance and the two rear positioning plates 57 do not block the cargo box, the driving assembly 4 stops working and controls the conveying assembly 1 to work. Under the action of the transmission roller 12 and gravity, the cargo box moves down to the cargo box baffle 6;

[0053] Step 4: Another staff member takes the box away;

[0054] The above process is repeated until all containers are unloaded.

[0055] The specific implementation methods of the invention are described in detail above, but they are only examples, and the invention is not limited to the specific implementation methods described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the invention, and therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the invention should be included in the scope of the invention.

Claims

1. A logistics unloading device, characterized in that: The invention comprises a conveying component (1), one end of which is provided with a cargo box positioning component (5), the cargo box positioning component (5) comprising a positioning plate (51), a sensor (52), a slider (53), a slide groove (54), a guide shaft (55), a rear positioning plate connecting rod (56), and a rear positioning plate (57), the slide groove (54) being opened at one end of the conveying component (1), the slide groove (54) being provided with symmetrical sliders (53), the slide groove (54) being provided with a guide shaft (55), and the two ends of the guide shaft (55) fixing the conveying component (1) 1), the guide shaft (55) passes through the slider (53), the upper end of each slider (53) is respectively fixedly connected to the middle part of the lower side of the positioning plate (51), and the opposite side of the positioning plate (51) is respectively provided with a sensor (52), the rear end of each positioning plate (51) is respectively rotatably connected to one end of the rear positioning plate connecting rod (56), the other end of each rear positioning plate connecting rod (56) is respectively rotatably connected to the upper end of the rear positioning plate (57), and the lower end of each rear positioning plate (57) is respectively rotatably connected to the transmission component (1); The device also includes a controller, wherein the controller and the sensor (52) perform data communication, and the sensor (52) is a pressure sensor, which is used to monitor the position of the cargo box. The characteristic that the sensor (52) starts to be subjected to pressure only after contacting the cargo box is realized, so that the sensor (52) contacts the cargo box when following the movement of the positioning plate (51). When the pressure values ​​felt by the sensors (52) on both sides are the same or are within the set threshold, it means that the position of the cargo box on the conveying component (1) is appropriate, and the controller can control the operation of the conveying component (1).

2. The unloading device for logistics according to claim 1, characterized in that: The transmission assembly (1) comprises a first motor (11), a transmission roller (12), a support frame (13), a connecting rod (14) and a connecting rod support rod (15); the two sides of the support frame (13) are rotatably connected to the central axes of a plurality of evenly arranged transmission rollers (12); the transmission rollers (12) are arranged in the support frame (13); one end of the central axis of each transmission roller (12) is fixedly connected to one end of the connecting rod (14); the other ends of all the connecting rods (14) are rotatably connected to the connecting rod support rod (15); one side of the other end of the support frame (13) is fixedly connected to the first motor (11); the output shaft of the first motor (11) is fixedly connected to the corresponding end of the central axis of the transmission roller (12); the slide groove (54) is arranged on the lower side of one end of the support frame (13); the guide shaft (55) is fixed on the support frame (13); the upper parts of the two sides of the support frame (13) are rotatably connected to the lower end of the rear positioning plate (57).

3. The unloading device for logistics according to claim 2, characterized in that: The cross sections at both ends of the transmission roller (12) are larger than the central cross section, and the cross sections at both ends of the transmission roller (12) are the same in size.

4. The unloading device for logistics according to claim 2, characterized in that: The slider (53) is connected to a driving assembly (4), and the driving assembly (4) comprises a rotating wheel (41), a boss (42), a driving rod (43), a motor bracket (44) and a second motor (45). The lower side of the support frame (13) is fixed with the second motor (45) through the motor bracket (44), and the output shaft of the second motor (45) is fixedly connected to the center of the rotating wheel (41). The lower edge of the rotating wheel (41) is fixedly provided with symmetrical bosses (42), and each boss (42) is respectively rotatably connected to one end of the driving rod (43), and the other end of each driving rod (43) is respectively rotatably connected to the lower side of the corresponding slider (53).

5. The unloading device for logistics according to claim 4, characterized in that: The support frame (13) is connected to the support seat (7) through an angle adjustment component (2), the angle adjustment component (2) comprising a connection block (21), a first hydraulic cylinder (22), a slot (23) and a connection frame (24), the other end of the support frame (13) is rotatably connected to the support seat (7) at both sides, the lower side of the support frame (13) is fixed with the connection block (21) near the other end, the connection block (21) is rotatably connected to the movable end of the first hydraulic cylinder (22), the fixed end of the first hydraulic cylinder (22) is rotatably connected to the connection frame (24), the connection frame (24) is fixed to the lower side of the support seat (7), the support seat (7) is provided with the slot (23), the slot (23) is used for the first hydraulic cylinder (22) to pass through, so as to avoid interference between the first hydraulic cylinder (22) and the support frame (13).

6. The unloading device for logistics according to claim 5, characterized in that: The lower side of the support seat (7) is connected to a lifting assembly (3), and the lifting assembly (3) is connected to a base (8). The lifting assembly (3) comprises a swing rod (31), a first reinforcing rod (32), a limit block (33), a guide rod (34), a second reinforcing rod (35) and a second hydraulic cylinder (36). The guide rods (34) are two and symmetrically arranged. The two ends of each guide rod (34) are respectively rotatably connected to one end of the two sides of the two swing rods (31), wherein the other ends of the two swing rods (31) are respectively rotatably connected to the lower side of the support seat (7), and the other ends of the other two swing rods (31) are respectively rotatably connected to the base (8). The swing rod (31), the support seat (7) and the guide rod (34) on the upper side form a parallelogram structure, and the swing rod (31), the guide rod (34) and the base (8) on the lower side form a parallelogram structure. ) pass through the limit blocks (33) respectively, each of the limit blocks (33) can slide along the corresponding guide rod (34), the opposite sides of the two limit blocks (33) are respectively rotatably connected to the two sides of the lower end of the first reinforcing rod (32), the two sides of the upper end of the first reinforcing rod (32) are respectively rotatably connected to the support seat (7), the rotation connection axis of the first reinforcing rod (32) and the support seat (7) is the same as the rotation connection axis of the swing rod (31) and the support seat (7), the other side of each limit block (33) is respectively rotatably connected to the two sides of the upper end of the second reinforcing rod (35), the other end of the second reinforcing rod (35) is respectively rotatably connected to the two sides of the lower part of the corresponding swing rod (31), the upper center of one of the swing rods (31) is rotatably connected to the movable end of the second hydraulic cylinder (36), and the fixed end of the second hydraulic cylinder (36) is rotatably connected to the base (8).

7. The unloading device for logistics according to claim 6, characterized in that: The controller is electrically connected to the first motor (11), the second motor (45), the first hydraulic cylinder (22) and the second hydraulic cylinder (36).

8. The unloading method of the unloading device for logistics according to claim 7, comprising the following steps: Step 1: Adjust the overall height through the lifting component (3); Step 2: According to the height of the cargo compartment of the truck, the inlet end of the transmission component (1) is adjusted to be connected to the cargo compartment through the angle adjustment component; Step 3: The controller controls the driving component (4) to drive the two positioning plates (51) of the cargo box positioning component (5) to separate to a distance greater than the cargo box. A loader places the cargo box on the transmission roller (12) of the conveying component (1). The cargo box is blocked by the rear positioning plate (57). The driving component (4) is used to move the two positioning plates (51) of the cargo box positioning component (5) closer to each other until both positioning plates (51) are against both sides of the cargo box. During this process, the cargo box moves under the push of the positioning plate (51) on the side that is closer. The sensor (52) monitors the pressure it feels in real time. When both sides of the cargo box are against the two positioning plates (51) and the two sensors (5 2) When the pressure values ​​felt are the same or are both within the set threshold, it means that the position of the cargo box on the conveying component (1) is appropriate. At this time, the cargo box is at the center of one end of the conveying component (1). The controller controls the driving component (4) to make the slider (53) move in the opposite direction, driving the positioning plates (51) away from each other and driving the two rear positioning plates 57 to swing in the opposite direction and no longer press against the rear side of the cargo box. When the distance ratio between the positioning plates (51) is greater than the cargo box distance and the two rear positioning plates (57) do not block the cargo box, the driving component (4) stops working and controls the conveying component (1) to work. Under the action of the transmission roller (12) and gravity, the cargo box moves down to the cargo box baffle (6); Step 4: Another staff member takes the box away.

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