A double-decked stack conveying system for containers

Abstract

This application relates to a double-layer stacking and conveying system for cargo boxes, belonging to the technical field of logistics warehousing and conveying. It includes a transport conveyor, with at least two sets of conveyors; a swing wheel sorter mounted on the transport conveyor for adjusting the transport posture of the cargo boxes; and a stacking assembly, including a stacking conveyor located at the end of the transport conveyor, a fixed baffle fixedly installed at the discharge end of the stacking conveyor, two sets of first grippers symmetrically arranged on both sides of the stacking conveyor along the conveying direction, the first grippers being used to grip the cargo boxes, a drive unit connected to the first grippers for driving the first grippers, and a gripping assembly mounted on a robotic arm for gripping the cargo boxes. This application has the effect of improving stacking efficiency and stacking anti-tipping ability.

Description

Technical Field

[0001] This application relates to the technical field of logistics warehousing and transportation, and in particular to a double-layer stacking and transportation system for cargo boxes. Background Technology

[0002] Existing solutions for palletizing and conveying lightweight containers using robotic arms are mainly divided into two categories: single-layer conveyor stacking and simple double-layer conveyor stacking. Single-layer conveyor stacking solutions have limited container storage capacity per unit area, low space utilization, and difficulty in matching the supply cycle with high-speed palletizing operations, resulting in a bottleneck in stacking efficiency.

[0003] Existing simple double-layer lightweight cargo box conveying solutions generally adopt a vertically aligned stacking method for the upper and lower layers of cargo boxes. The centers of gravity of the cargo boxes between layers are collinear. Affected by the impact of the conveyor belt starting and stopping, the impact force of the robotic arm placement, and equipment vibration, the upper layer of cargo boxes is prone to horizontal slippage. The stack has weak anti-tipping ability and a high risk of stacking breakage during the transfer process. Moreover, the equipment is mostly a fixed rigid structure, which cannot adjust the misalignment according to the cargo box parameters to optimize the center of gravity distribution. The stacking stability cannot meet the requirements of high-speed automated operation. Summary of the Invention

[0004] To improve stacking efficiency and anti-tipping ability, this application provides a double-layer stacking and conveying system for cargo containers.

[0005] This application provides a double-layer stacking and conveying system for cargo containers, which adopts the following technical solution: A double-layer stacking and conveying system for cargo containers includes: A transport conveyor, wherein at least two sets of the transport conveyor are provided; A swing wheel sorting machine is installed on the transport conveyor and is used to adjust the transport posture of the cargo box. Stacking assembly, including: A stacking conveyor, wherein the stacking conveyor is disposed at the end of the transport conveyor; A fixed baffle is fixedly installed at the discharge end of the stacker conveyor; The first clamping component is provided in two sets. The two sets of the first clamping components are symmetrically arranged on both sides of the stacker conveyor along the conveying direction of the stacker conveyor. The first clamping component is used to clamp the cargo box. A driving component, which is connected to the first gripper and is used to drive the first gripper; A robotic arm equipped with a gripping component for gripping cargo boxes.

[0006] Optionally, each set of the first gripper includes: Mounting plate, which is connected to the driving component; A first sliding plate is slidably mounted on the mounting plate; The first abutment rod, wherein multiple abutment rods are provided and evenly fixedly installed on the first sliding plate.

[0007] Optionally, the driving element includes: A hydraulic cylinder, the output end of which is fixedly connected to the mounting plate; The positioning plate has a first guide groove, a second guide groove, a third guide groove and a fourth guide groove. One end of the first guide groove is connected to one end of the second guide groove, the other end of the second guide groove is connected to one end of the third guide groove, the other end of the third guide groove is connected to one end of the fourth guide groove, and the other end of the fourth guide groove is connected to the first guide groove. The first sliding plate can slide within the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove. When the first sliding plate slides from one end of the first guide groove to the second guide groove, the first sliding plate and the first abutting rod can approach the stacker conveyor. When the first sliding plate slides from one end of the second guide groove to the third guide groove, the first sliding plate approaches the cargo box and causes the first abutting rod to abut against the cargo box. When the first sliding plate slides from one end of the third guide groove to the fourth guide groove, the first sliding plate and the first abutting rod will clamp and lift the cargo box. When the first sliding plate slides from one end of the fourth guide groove to the first guide groove, the first sliding plate and the first abutting rod move away from the cargo box.

[0008] Optionally, at the point where the first guide groove and the second guide groove communicate, the depth of the second guide groove is greater than the depth of the first guide groove; At the junction of the second guide groove and the third guide groove, the depth of the third guide groove is greater than the depth of the second guide groove; At the junction of the third guide groove and the fourth guide groove, the depth of the fourth guide groove is greater than the depth of the third guide groove; At the point where the fourth guide groove communicates with the first guide groove, the depth of the first guide groove is greater than the depth of the fourth guide groove. A first slider is slidably mounted on the first sliding plate. The first slider can slide within the first guide groove, the second guide groove, the third guide groove, and the fourth guide groove. A first spring is fixedly connected to the first slider, and the end of the first spring away from the first slider is fixedly connected to the first sliding plate.

[0009] Optionally, the stacking assembly further includes a second gripper, the second gripper comprising: A second sliding plate is slidably mounted on the mounting plate; The second abutment rod, wherein multiple second abutment rods are provided and evenly fixedly installed on the second sliding plate.

[0010] Optionally, the positioning plate is provided with a fifth guide groove, one end of which is connected to the end of the first guide groove near the second guide groove, and the other end of which is connected to the end of the second guide groove away from the first guide groove. The second sliding plate can slide within the first guide groove, the second guide groove, and the fifth guide groove. When the second sliding plate slides from one end of the first guide groove to the second guide groove, the second sliding plate and the second abutment rod can approach the stacker conveyor. When the second sliding plate slides from one end of the second guide groove to the fifth guide groove, the second sliding plate approaches the cargo box and causes the second abutting rod to abut against the cargo box. When the second sliding plate slides from one end of the fifth guide groove to the first guide groove, the second sliding plate and the second abutment rod move away from the cargo box.

[0011] Optionally, at the point where the second guide groove and the fifth guide groove communicate, the depth of the fifth guide groove is greater than the depth of the second guide groove; At the point where the fifth guide groove communicates with the first guide groove, the depth of the first guide groove is greater than the depth of the fifth guide groove. A second slider is slidably mounted on the second sliding plate. The second slider can slide within the first guide groove, the second guide groove, and the fifth guide groove. A second spring is fixedly connected to the second slider, and the end of the second spring away from the second slider is fixedly connected to the second sliding plate.

[0012] Optionally, the stacking assembly further includes a rubber sleeve; The rubber sleeve is fitted and threaded onto the end of the first abutment rod away from the first sliding plate and the end of the second abutment rod away from the second sliding plate.

[0013] Optionally, the grasping component includes: Two first hydraulic rods are provided, and the fixed ends of the two first hydraulic rods are symmetrically fixedly installed on the robotic arm; The fork levers are provided in multiples, and the multiple fork levers are evenly and fixedly installed on the output end of the first hydraulic rod.

[0014] Optionally, the grasping component further includes: The second hydraulic rod is provided in two parts, and the fixed ends of the two second hydraulic rods are symmetrically fixed on the robotic arm. The axial direction of the first hydraulic rod is perpendicular to the axial direction of the second hydraulic rod. A clamping plate is fixedly installed on the output end of the second hydraulic rod.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. When the double-layer stacking conveyor system is running, the conveyor transports the boxes to the discharge end. When the boxes pass through the swing wheel sorter, the sorter adjusts the transport posture to ensure that the boxes are continuously transported in a preset uniform posture. Then the boxes enter the stacking assembly, which completes the layered stacking to form a double-layer stack, effectively improving the space utilization of the equipment and adapting to the high-speed palletizing supply cycle. Finally, the robotic arm grabs the stack through the gripping assembly and transfers it for stacking, thus improving the overall efficiency of box conveying and palletizing operations. 2. Two sets of first gripping components arranged symmetrically along the conveying direction of the stacking conveyor operate synchronously. The first sliding plate drives the first abutting rod to move towards each other through the driving component, and applies clamping force to the cargo box from both sides of the stacking conveyor, so that adjacent cargo boxes on the same layer are tightly abutted to each other, increasing the contact friction between the cargo boxes, thereby improving the anti-overturning ability and stacking stability of the entire stack of cargo boxes. 3. Two sets of first gripping components arranged symmetrically along the conveying direction of the stacking conveyor operate synchronously. The first sliding plate drives the first abutment rod to move towards each other through the driving component, and applies clamping force to the cargo box from both sides of the stacking conveyor, so that adjacent cargo boxes on the same layer are tightly abutted to each other, increasing the contact friction between the cargo boxes, thereby improving the anti-overturning ability and stacking stability of the entire stack of cargo boxes. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of this application; Figure 2 This is a structural diagram used to illustrate stacking components; Figure 3 This is a structural schematic diagram used to illustrate the first clamping component; Figure 4 This is a structural diagram used to display the positioning plate; Figure 5 This is a structural diagram used to illustrate the crawling component.

[0017] Explanation of reference numerals in the attached figures: 1. Conveyor system; 2. Swing wheel sorting machine; 3. Stacking assembly; 31. Stacking conveyor; 311. Fixed baffle; 32. First gripper; 321. Mounting plate; 322. First sliding plate; 323. First abutment rod; 324. First slider; 325. First spring; 33. Driving component; 331. Hydraulic cylinder; 332. Positioning plate; 3321. First guide groove; 3322. Second guide groove; 3323. Third guide groove; 3324. Fourth guide groove; 3325. Fifth guide groove; 34. Second gripper; 341. Second sliding plate; 342. Second abutment rod; 343. Second slider; 344. Second spring; 35. Rubber sleeve; 4. Robotic arm; 5. Gripping assembly; 51. First hydraulic rod; 52. Fork rod; 53. Second hydraulic rod; 54. Clamping plate. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0019] This application discloses a double-layer stacking and conveying system for cargo containers.

[0020] A double-layer stacking and conveying system for cargo boxes includes a transport conveyor 1, a swing wheel sorter 2, a stacking assembly 3, and a robotic arm 4. The transport conveyor 1 is provided with at least two sets. The swing wheel sorter 2 is mounted on the transport conveyor 1 and is used to adjust the transport posture of the cargo boxes. The stacking assembly 3 is located at the end of the transport conveyor 1 and is used to stack the cargo boxes. The robotic arm 4 is equipped with a gripping assembly 5, which is used to grip the cargo boxes.

[0021] When the double-layer stacking conveyor system is running, the conveyor 1 transports the boxes to the discharge end. When the boxes pass through the swing wheel sorter 2, the swing wheel sorter 2 adjusts the transport posture so that the boxes are continuously transported in a preset uniform posture. Then the boxes enter the stacking component 3, which completes the layered stacking to form a double-layer stack, effectively improving the space utilization of the equipment and adapting to the high-speed palletizing supply cycle. Finally, the robotic arm 4 grabs the stack through the gripping component 5 and transfers it for stacking, thus improving the overall efficiency of box transport and palletizing operations.

[0022] Furthermore, the first row of containers in the first layer is arranged horizontally, while the second and subsequent rows are arranged vertically; the last row of containers in the second layer is arranged horizontally, while the remaining rows are arranged vertically. The arrangement of containers in the first and second layers is centrally symmetrical in space, which can increase the contact friction between containers in the layers, improve the anti-tipping ability of the double-layer stack, and enhance the overall stability of the stack.

[0023] Furthermore, the stacking assembly 3 includes a stacking conveyor 31, a fixed baffle 311, a first clamping component 32, and a driving component 33. The stacking conveyor 31 is located at the end of the transport conveyor 1 and is a roller conveyor with gaps between adjacent rollers. The fixed baffle 311 is fixedly installed at the discharge end of the stacking conveyor 31.

[0024] Two sets of first gripper 32 are provided. The two sets of first gripper 32 are symmetrically arranged on both sides of the stacker conveyor 31 along the conveying direction of the stacker conveyor 31. The first gripper 32 is used to grip the cargo box. The driving component 33 is connected to the first gripper 32 and is used to drive the first gripper 32.

[0025] The boxes are transported to the stacking conveyor 31 via the transport conveyor 1 and the swing wheel sorter 2. The boxes are limited by the fixed baffle 311 in the conveying direction of the stacking conveyor 31 to ensure that one end of the box is flush. After the first layer of boxes is in place, the first gripper 32 is driven by the drive unit 33 to work. The first gripper 32 clamps and lifts the first layer of boxes so that the second layer of boxes can fall below the first layer of boxes. After the second layer of boxes is in place, the first layer of boxes is stacked on the second layer of boxes to form a double stack. Then the robotic arm 4 is started, and the gripping component 5 grabs the stack and transfers it, improving the space utilization of the double stacking conveyor system and matching the high-speed palletizing supply cycle, thereby improving the efficiency of box conveying and palletizing.

[0026] Furthermore, each set of first clamping components 32 includes a mounting plate 321, a first sliding plate 322, and a first abutting rod 323. The mounting plate 321 is connected to the driving component 33, the first sliding plate 322 is slidably mounted on the mounting plate 321, and multiple first abutting rods 323 are evenly fixedly mounted on the first sliding plate 322.

[0027] Two sets of first gripping components 32, symmetrically arranged along the conveying direction of the stacking conveyor 31, move synchronously. The first sliding plate 322 drives the first abutting rod 323 to move towards each other through the driving component 33, applying clamping force to the cargo box from both sides of the stacking conveyor 31, so that adjacent cargo boxes on the same layer are tightly abutted against each other, increasing the contact friction between the cargo boxes, thereby improving the anti-overturning ability and stacking stability of the entire stack of cargo boxes.

[0028] Furthermore, the driving component 33 includes a hydraulic cylinder 331 and a positioning plate 332. The hydraulic cylinder 331 is vertically oriented, and its output end is fixedly connected to the mounting plate 321. The positioning plate 332 has a first guide groove 3321, a second guide groove 3322, a third guide groove 3323, and a fourth guide groove 3324. One end of the first guide groove 3321 is connected to one end of the second guide groove 3322, the other end of the second guide groove 3322 is connected to one end of the third guide groove 3323, the other end of the third guide groove 3323 is connected to one end of the fourth guide groove 3324, and the other end of the fourth guide groove 3324 is connected to the first guide groove 3321.

[0029] The first sliding plate 322 can slide within the first guide groove 3321, the second guide groove 3322, the third guide groove 3323 and the fourth guide groove 3324. When the first sliding plate 322 slides from one end of the first guide groove 3321 to the second guide groove 3322, the first sliding plate 322 and the first abutting rod 323 can approach the stacker conveyor 31. The first guide groove 3321 is a straight groove and is vertically arranged. When the first sliding plate 322 slides from one end of the second guide groove 3322 to the third guide groove 3323, the first sliding plate 322 approaches the cargo box and the first abutting rod 323 abuts against the cargo box. The second guide groove 3322 is a straight groove and is inclined. The horizontal height of the end of the second guide groove 3322 away from the first guide groove 3321 is higher than that of the other end. When the first sliding plate 322 slides from one end of the third guide groove 3323 to the fourth guide groove 3324, the first sliding plate 322 and the first abutting rod 323 clamp and lift the cargo box. The third guide groove 3323 is a straight groove and is set vertically. When the first sliding plate 322 slides from one end of the fourth guide groove 3324 to the first guide groove 3321, the first sliding plate 322 and the first abutting rod 323 move away from the cargo box, and the fourth guide groove 3324 is arc-shaped.

[0030] Furthermore, a first slider 324 is slidably mounted on the first sliding plate 322. The first slider 324 can slide within the first guide groove 3321, the second guide groove 3322, the third guide groove 3323, and the fourth guide groove 3324. A first spring 325 is fixedly connected to the first slider 324, and the end of the first spring 325 away from the first slider 324 is fixedly connected to the first sliding plate 322.

[0031] At the junction of the first guide groove 3321 and the second guide groove 3322, the depth of the second guide groove 3322 is greater than the depth of the first guide groove 3321 to form a stepped height difference, ensuring that the first slider 324 can enter the second guide groove 3322 from the first guide groove 3321 and preventing the first slider 324 from moving in the opposite direction.

[0032] At the junction of the second guide groove 3322 and the third guide groove 3323, the depth of the third guide groove 3323 is greater than the depth of the second guide groove 3322 to form a stepped height difference, ensuring that the first slider 324 can enter the third guide groove 3323 from the second guide groove 3322 and preventing the first slider 324 from moving in the opposite direction.

[0033] At the junction of the third guide groove 3323 and the fourth guide groove 3324, the depth of the fourth guide groove 3324 is greater than the depth of the third guide groove 3323 to form a stepped height difference, ensuring that the first slider 324 can enter the fourth guide groove 3324 from the third guide groove 3323 and preventing the first slider 324 from moving in the opposite direction.

[0034] At the junction of the fourth guide groove 3324 and the first guide groove 3321, the depth of the first guide groove 3321 is greater than the depth of the fourth guide groove 3324 to form a stepped height difference, ensuring that the first slider 324 can enter the first guide groove 3321 from the fourth guide groove 3324 and preventing the first slider 324 from moving in the opposite direction.

[0035] In the initial state, the first abutting rod 323 is at a horizontal height lower than the conveying surface of the stacker conveyor 31. After all the first layer of boxes are in place, the movable end of the hydraulic cylinder 331 extends and drives the mounting plate 321 to move vertically upward. The movement of the mounting plate 321 then drives the first sliding plate 322 to move synchronously. The first slider 324 moves from the first guide groove 3321 to the second guide groove 3322. At the same time, the first abutting rod 323 passes through the roller gap of the stacker conveyor 31 and moves above the conveying surface of the stacker conveyor 31.

[0036] Subsequently, as the movable end of the hydraulic cylinder 331 continues to extend, the first slider 324 enters the second guide groove 3322 and slides from the second guide groove 3322 to the third guide groove 3323. During this period, the first sliding plate 322 and the first abutting rod 323 approach the cargo box and abut against the cargo box, so that adjacent cargo boxes on the same layer abut against each other tightly.

[0037] Then, the movable end of the hydraulic cylinder 331 continues to extend, and the first slider 324 enters the third guide groove 3323 and slides from the third guide groove 3323 to the fourth guide groove 3324. During this period, the first sliding plate 322 and the first abutting rod 323 lift the first layer of cargo boxes so that the second layer of cargo boxes can fall below the first layer of cargo boxes to form a double-layer stack.

[0038] After the second layer of cargo boxes is in place, the movable end of the hydraulic cylinder 331 shortens, the first slider 324 enters the fourth guide groove 3324 and slides from the fourth guide groove 3324 to the first guide groove 3321, the first sliding plate 322 and the first abutting rod 323 move away from the cargo boxes, so that the first layer of cargo boxes is stacked on the second layer of cargo boxes to form a double stack, thus completing the stacking operation.

[0039] Furthermore, the stacking assembly 3 also includes a second clamping member 34, which includes a second sliding plate 341 and a second abutting rod 342. The second sliding plate 341 is slidably mounted on the mounting plate 321 and located below the first sliding plate 322, and multiple second abutting rods 342 are provided and evenly fixedly mounted on the second sliding plate 341.

[0040] Two sets of second gripping components 34, symmetrically arranged along the conveying direction of the stacking conveyor 31, move synchronously. The second sliding plate 341 drives the second abutment rod 342 to move towards each other through the driving component 33, applying clamping force to the cargo box from both sides of the stacking conveyor 31. This makes the adjacent cargo boxes of the second layer closely abut against each other and adapt to the cargo boxes of the first layer, increasing the contact friction between the cargo boxes, thereby improving the anti-overturning ability and stacking stability of the entire stack of cargo boxes.

[0041] Furthermore, a fifth guide groove 3325 is provided on the positioning plate 332. One end of the fifth guide groove 3325 is connected to the end of the first guide groove 3321 that is close to the second guide groove 3322, and the other end of the fifth guide groove 3325 is connected to the end of the second guide groove 3322 that is away from the first guide groove 3321. The fifth guide groove 3325 is arc-shaped.

[0042] The second sliding plate 341 can slide within the first guide groove 3321, the second guide groove 3322 and the fifth guide groove 3325. When the second sliding plate 341 slides from one end of the first guide groove 3321 to the second guide groove 3322, the second sliding plate 341 and the second abutting rod 342 can approach the stacker conveyor 31. When the second sliding plate 341 slides from one end of the second guide groove 3322 to the fifth guide groove 3325, the second sliding plate 341 approaches the cargo box and causes the second abutting rod 342 to abut against the cargo box. When the second sliding plate 341 slides from one end of the fifth guide groove 3325 to the first guide groove 3321, the second sliding plate 341 and the second abutting rod 342 move away from the cargo box.

[0043] Furthermore, a second slider 343 is slidably mounted on the second sliding plate 341. The second slider 343 can slide within the first guide groove 3321, the second guide groove 3322, and the fifth guide groove 3325. The width of the second slider 343 is greater than the width of the third guide groove 3323. A second spring 344 is fixedly connected to the second slider 343. The end of the second spring 344 away from the second slider 343 is fixedly connected to the second sliding plate 341.

[0044] At the junction of the second guide groove 3322 and the fifth guide groove 3325, the depth of the fifth guide groove 3325 is greater than the depth of the second guide groove 3322 to form a stepped height difference, and the width of the fifth guide groove 3325 is greater than the width of the third guide groove 3323 and matches the width of the second slider 343, ensuring that the second slider 343 can enter the fifth guide groove 3325 from the second guide groove 3322, avoiding the second slider 343 from moving in the opposite direction and avoiding the second slider 343 from entering the third guide groove 3323.

[0045] At the junction of the fifth guide groove 3325 and the first guide groove 3321, the depth of the first guide groove 3321 is greater than the depth of the fifth guide groove 3325 to form a stepped height difference, ensuring that the second slider 343 can enter the first guide groove 3321 from the fifth guide groove 3325 and preventing the second slider 343 from moving in the opposite direction.

[0046] When the first slider 324 enters the third guide groove 3323 and the first sliding plate 322 and the first abutting rod 323 lift the first layer of boxes, the second slider 343 slides from the first guide groove 3321 to the second guide groove 3322. The second abutting rod 342 passes through the roller gap of the stacking conveyor 31 and moves above the conveying surface of the stacking conveyor 31. Then the second slider 343 enters the second guide groove 3322. After the second layer of boxes falls below the first layer of boxes, the movable end of the hydraulic cylinder 331 continues to extend. The second slider 343 moves in the second guide groove 3322 towards the fifth guide groove 3325. The second abutting rod 342 approaches the box and abuts against the box, so that the adjacent boxes of the second layer abut against each other tightly, increasing the contact friction between the adjacent boxes of the second layer, thereby improving the anti-tipping ability and stacking stability of the entire stack of boxes.

[0047] After the second layer of cargo boxes is in place, the movable end of the hydraulic cylinder 331 shortens, the second slider 343 enters the fifth guide groove 3325 and slides from the fifth guide groove 3325 to the first guide groove 3321, the second sliding plate 341 and the second abutting rod 342 move away from the cargo box, and the first layer of cargo boxes are stacked on the second layer of cargo boxes to form a double stack, completing the stacking operation.

[0048] Furthermore, the stacking assembly 3 also includes a rubber sleeve 35, which is fitted and threadedly connected to the end of the first abutment rod 323 away from the first sliding plate 322 and the end of the second abutment rod 342 away from the second sliding plate 341. By screwing the rubber sleeve 35, the distance between the rubber sleeve 35 and the first sliding plate 322 and the second sliding plate 341 can be adjusted, thereby adjusting the length of the first abutment rod 323 and the second abutment rod 342 to fill the gaps caused by the staggered arrangement of the cargo boxes, ensuring that each abutment position is in full contact with the cargo box, and improving the stability of the first clamping member 32 and the second clamping member 34 in clamping the cargo box.

[0049] Furthermore, the gripping component 5 includes a first hydraulic rod 51 and forks 52. Two first hydraulic rods 51 are provided, with their fixed ends symmetrically fixedly mounted on the robotic arm 4. Multiple forks 52 are provided, evenly and fixedly mounted on the output ends of the first hydraulic rods 51. The forks 52 can pass through the gaps between the rollers of the stacker conveyor 31. With the robotic arm 4 and the first hydraulic rods 51 working together, the forks 52, after passing through the gaps between the rollers of the stacker conveyor 31, lift the bottom of the cargo box, allowing the cargo box to be stably supported on the forks 52, thus realizing the cargo box handling operation and improving the stability of the cargo box during the handling process.

[0050] Furthermore, the gripping assembly 5 also includes a second hydraulic rod 53 and a clamping plate 54. Two second hydraulic rods 53 are provided, and their fixed ends are symmetrically fixedly mounted on the robotic arm 4. The axial direction of the first hydraulic rod 51 is perpendicular to the axial direction of the second hydraulic rod 53. The clamping plate 54 is fixedly mounted on the output end of the second hydraulic rod 53. During cargo handling operations, while the fork 52 supports the cargo from the bottom, the second hydraulic rods 53 drive the clamping plates 54 on both sides to feed towards each other, clamping and fixing the cargo from both ends. Through the coordinated limiting of bottom lifting and side clamping, the stability of the cargo during handling is effectively improved.

[0051] The implementation principle of a double-layer stacking and conveying system for cargo boxes according to an embodiment of this application is as follows: When the double-layer stacking and conveying system for cargo boxes is running, the conveyor 1 transports the cargo boxes to the discharge end. When the cargo boxes pass through the swing wheel sorter 2, the swing wheel sorter 2 adjusts the transport posture so that the cargo boxes are continuously transported in a preset uniform posture. Subsequently, the cargo boxes enter the stacking assembly 3, and the cargo boxes are limited by the fixed baffle 311 in the conveying direction of the stacking conveyor 31 to ensure that one end of the cargo box is flush. After all the cargo boxes in the first layer have been placed, The first gripper 32 is driven by the drive unit 33 to clamp and lift the first layer of boxes, so that the second layer of boxes can fall below the first layer of boxes. After the second layer of boxes is in place, the first layer of boxes is stacked on the second layer of boxes to form a double stack. Then the robotic arm 4 is started, and the gripping component 5 grabs the stack and transfers it, which improves the space utilization of the double stacking and conveying system, makes it match the supply cycle of high-speed palletizing, and improves the efficiency of box conveying and palletizing.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A double-layer stacking and conveying system for cargo containers, characterized in that, include: The transport conveyor (1) is provided in at least two sets; A swing wheel sorting machine (2) is installed on the transport conveyor (1) and is used to adjust the transport posture of the cargo box; The stacking assembly (3) includes: A stacking conveyor (31) is disposed at the end of the transport conveyor (1); A fixed baffle (311) is fixedly installed at the discharge end of the stacker conveyor (31); The first clamping component (32) is provided in two sets. The two sets of the first clamping components (32) are symmetrically arranged on both sides of the stacker conveyor (31) along the conveying direction of the stacker conveyor (31). The first clamping component (32) is used to clamp the cargo box. A driving member (33) is connected to the first gripper (32) and the driving member (33) is used to drive the first gripper (32). A robotic arm (4) is equipped with a gripping component (5) for gripping a cargo box.

2. The double-layer stacking and conveying system for cargo containers according to claim 1, characterized in that, Each of the first gripper (32) in each group includes: Mounting plate (321), which is connected to the drive unit (33); A first sliding plate (322) is slidably mounted on the mounting plate (321); The first abutting rod (323) is provided in multiple and evenly fixedly installed on the first sliding plate (322).

3. A double-layer stacking and conveying system for cargo containers according to claim 2, characterized in that, The drive unit (33) includes: A hydraulic cylinder (331) is fixedly connected to the mounting plate (321) at its output end. A positioning plate (332) is provided with a first guide groove (3321), a second guide groove (3322), a third guide groove (3323), and a fourth guide groove (3324). One end of the first guide groove (3321) is connected to one end of the second guide groove (3322), the other end of the second guide groove (3322) is connected to one end of the third guide groove (3323), the other end of the third guide groove (3323) is connected to one end of the fourth guide groove (3324), and the other end of the fourth guide groove (3324) is connected to the first guide groove (3321). The first sliding plate (322) can slide within the first guide groove (3321), the second guide groove (3322), the third guide groove (3323), and the fourth guide groove (3324). When the first sliding plate (322) slides from one end of the first guide groove (3321) to the second guide groove (3322), the first sliding plate (322) and the first abutting rod (323) can approach the stacker conveyor (31). When the first sliding plate (322) slides from one end of the second guide groove (3322) to the third guide groove (3323), the first sliding plate (322) approaches the cargo box and causes the first abutting rod (323) to abut against the cargo box; When the first sliding plate (322) slides from one end of the third guide groove (3323) to the fourth guide groove (3324), the first sliding plate (322) and the first abutting rod (323) clamp and lift the cargo box; When the first sliding plate (322) slides from one end of the fourth guide groove (3324) to the first guide groove (3321), the first sliding plate (322) and the first abutting rod (323) move away from the cargo box.

4. A double-layer stacking and conveying system for cargo containers according to claim 3, characterized in that, At the junction of the first guide groove (3321) and the second guide groove (3322), the depth of the second guide groove (3322) is greater than the depth of the first guide groove (3321); At the point where the second guide groove (3322) and the third guide groove (3323) communicate, the depth of the third guide groove (3323) is greater than the depth of the second guide groove (3322); At the junction of the third guide groove (3323) and the fourth guide groove (3324), the depth of the fourth guide groove (3324) is greater than the depth of the third guide groove (3323); At the point where the fourth guide groove (3324) communicates with the first guide groove (3321), the depth of the first guide groove (3321) is greater than the depth of the fourth guide groove (3324); A first slider (324) is slidably mounted on the first sliding plate (322). The first slider (324) can slide within the first guide groove (3321), the second guide groove (3322), the third guide groove (3323), and the fourth guide groove (3324). A first spring (325) is fixedly connected to the first slider (324). One end of the first spring (325) away from the first slider (324) is fixedly connected to the first sliding plate (322).

5. A double-layer stacking and conveying system for cargo containers according to claim 3, characterized in that, The stacking assembly (3) further includes a second gripper (34), the second gripper (34) comprising: The second sliding plate (341) is slidably mounted on the mounting plate (321); The second abutment rod (342) is provided in multiple and evenly fixedly installed on the second sliding plate (341).

6. A double-layer stacking and conveying system for cargo containers according to claim 5, characterized in that, The positioning plate (332) is provided with a fifth guide groove (3325). One end of the fifth guide groove (3325) is connected to the end of the first guide groove (3321) that is close to the second guide groove (3322), and the other end of the fifth guide groove (3325) is connected to the end of the second guide groove (3322) that is away from the first guide groove (3321). The second sliding plate (341) can slide within the first guide groove (3321), the second guide groove (3322), and the fifth guide groove (3325). When the second sliding plate (341) slides from one end of the first guide groove (3321) to the second guide groove (3322), the second sliding plate (341) and the second abutment rod (342) can approach the stacker conveyor (31). When the second sliding plate (341) slides from one end of the second guide groove (3322) to the fifth guide groove (3325), the second sliding plate (341) approaches the cargo box and causes the second abutment rod (342) to abut against the cargo box; When the second sliding plate (341) slides from one end of the fifth guide groove (3325) to the first guide groove (3321), the second sliding plate (341) and the second abutment rod (342) move away from the cargo box.

7. A double-layer stacking and conveying system for cargo containers according to claim 6, characterized in that, At the point where the second guide groove (3322) and the fifth guide groove (3325) communicate, the depth of the fifth guide groove (3325) is greater than the depth of the second guide groove (3322); At the point where the fifth guide groove (3325) communicates with the first guide groove (3321), the depth of the first guide groove (3321) is greater than the depth of the fifth guide groove (3325); A second slider (343) is slidably mounted on the second sliding plate (341). The second slider (343) can slide within the first guide groove (3321), the second guide groove (3322), and the fifth guide groove (3325). A second spring (344) is fixedly connected to the second slider (343). One end of the second spring (344) away from the second slider (343) is fixedly connected to the second sliding plate (341).

8. A double-layer stacking and conveying system for cargo containers according to claim 5, characterized in that, The stacking assembly (3) also includes a rubber sleeve (35); The rubber sleeve (35) is fitted and threaded onto the end of the first abutment rod (323) away from the first sliding plate (322) and the end of the second abutment rod (342) away from the second sliding plate (341).

9. A double-layer stacking and conveying system for cargo containers according to claim 1, characterized in that, The crawling component (5) includes: Two first hydraulic rods (51) are provided, and the fixed ends of the two first hydraulic rods (51) are symmetrically fixed on the robotic arm (4). Multiple forks (52) are provided, and the multiple forks (52) are evenly and fixedly installed on the output end of the first hydraulic rod (51).

10. A double-layer stacking and conveying system for cargo containers according to claim 9, characterized in that, The crawling component (5) also includes: The second hydraulic rod (53) is provided in two, and the fixed ends of the two second hydraulic rods (53) are symmetrically fixed on the robotic arm (4). The axial direction of the first hydraulic rod (51) is perpendicular to the axial direction of the second hydraulic rod (53). A clamp (54) is fixedly installed on the output end of the second hydraulic rod (53).

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