A conveying device for corrugated cardboard logistics

Abstract

The present invention is applicable to the technical field of corrugated cardboard transfer, and particularly relates to a conveying device for corrugated cardboard logistics, including a support base, and an electric roller conveyor is arranged on the surface of the support base. A robotic arm assembly is arranged on the surface of the support base, and a cardboard transfer box is arranged outside the robotic arm assembly. Through the ingenious combination design of the airbag and the inflatable raised blocks, the present invention effectively improves the grasping and transfer stability of stacked corrugated cardboard (especially in the unbundled state). The airbag is made of silicone or polyurethane material, has softness and elasticity, provides a soft support when contacting the side of the corrugated cardboard, and avoids damage to the cardboard caused by hard object clamping in the traditional mechanical grasping method. After the airbag is initially inflated to a predetermined width, it continues to be inflated to further expand the inflatable raised blocks. The inflatable raised blocks are made of rubber or rigid foam material, have appropriate hardness and elasticity, and can be inserted into the cardboard gaps to form a firm clamping.

Description

Technical Field

[0001] The present invention relates to the technical field of corrugated cardboard transportation, and specifically to a conveying device for corrugated cardboard logistics. Background Art

[0002] As a widely used packaging material, the efficient handling of corrugated cardboard in production and logistics transportation is crucial for the operation of the entire supply chain. During the logistics transportation process of corrugated cardboard, conveyor belts are often used to transport corrugated cardboard from one station to another. Especially during long-distance transportation, the efficiency of the conveyor belt is particularly important. However, at the end of the conveyor belt, the blanking and transportation operations of corrugated cardboard usually rely on robotic arms or robots to complete. Existing transportation robotic arms and robots transfer corrugated cardboard from the conveyor belt to a designated position by grasping or clamping methods to achieve automated stacking, sorting, and handling tasks. These robotic arms or robots mostly adopt rigid clamping structures, such as pliers-like clamps or mechanical fingers, and grasp corrugated cardboard through clamping force or suction cup adsorption force for transportation operations.

[0003] However, in the prior art, these transportation robotic arms and robots have some obvious technical defects during the blanking process. Especially for stacked corrugated cardboard (especially unbundled stacks), due to the gaps or uneven stacking between each cardboard, it is very difficult for the robotic arm to apply uniform clamping force to all cardboards simultaneously when grasping. If the clamping force is too large, the rigid clamping tool is likely to damage the edges and surfaces of the cardboard, resulting in damage to the packaging material; if the clamping force is too small, it is very difficult to firmly grasp the cardboard, resulting in the cardboard falling during transportation. Especially for unbundled corrugated cardboard stacks, this situation is particularly serious because unbundled cardboards are more likely to slide and misalign during the stacking process, further increasing the difficulty of grasping and transportation.

[0004] Therefore, in the prior art, when dealing with the transportation process of stacked corrugated cardboard (especially unbundled), there are two main problems: one is that the robotic arm or robot is likely to damage the integrity of the cardboard during the clamping process; the other is that due to uneven or insufficient clamping force, the cardboard is likely to fall during transportation. Summary of the Invention

[0005] The purpose of the embodiments of the present invention is to provide a conveying device for corrugated cardboard logistics, aiming to solve the technical problems mentioned in the background art.

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

[0007] A conveying device for corrugated cardboard logistics includes a support base, and an electric roller conveyor is arranged on the surface of the support base. A robotic arm assembly is arranged on the surface of the support base, and a cardboard transfer box is arranged outside the robotic arm assembly;

[0008] An intelligent camera is installed on the surface of the cardboard transfer box. Square holes are opened on both sides of the cardboard transfer box, and a sliding mounting block is slidably connected inside the square holes. Mounting holes are opened on the surface of the sliding mounting block, and a first electric push rod is installed inside the mounting holes. One end of the first electric push rod is connected to a mounting panel. Air bags are installed on the sides of the two mounting panels close to each other, and a number of inflatable bump blocks are arranged on the surface of the air bags;

[0009] An intelligent air pump is installed on the side of the cardboard transfer box, and one end of the intelligent air pump is connected to a three-way air pipe. Both ends of the three-way air pipe away from the intelligent air pump are connected to air delivery hoses;

[0010] Mounting seats are arranged at positions on both sides of the cardboard transfer box close to the square holes, and a second electric push rod is installed inside the mounting seats.

[0011] Further, the end of the air delivery hose away from the three-way air pipe is communicated with the inside of the air bag.

[0012] Further, the air bag is made of silica gel material or polyurethane material, the inflatable bump blocks are made of rubber material or rigid foam material, and the inside of the inflatable bump blocks is communicated with the inside of the air bag.

[0013] Further, a guiding chute is opened inside the square hole, a guiding slider is installed on the surface of the sliding mounting block, and the sliding mounting block is slidably connected inside the square hole through the cooperation of the guiding slider and the guiding chute. One end of the second electric push rod is connected to the surface of the sliding mounting block.

[0014] Further, the robotic arm assembly includes:

[0015] A rotating base is rotatably connected to the surface of the support base, and a rotating arm is connected to one end of the rotating base. A support panel is connected to the end of the rotating arm away from the rotating base, and an electric lifting rod is installed on the surface of the support panel. The cardboard transfer box is fixedly connected to one end of the electric lifting rod;

[0016] A passive gear is sleeved outside the rotating base, a driving motor is installed on the surface of the support base, and a driving gear is installed at the output end of the driving motor. The outside of the driving gear is meshed with the outside of the passive gear.

[0017] Further, a bearing seat is installed on the surface of the support base, and the rotating base is rotatably connected to the surface of the support base through the bearing seat.

[0018] Further, a number of support legs are arranged at the bottom of the electric roller conveyor, and a control panel is installed on the side of the electric roller conveyor.

[0019] A conveying device for corrugated cardboard logistics provided by the present invention has the following beneficial effects:

[0020] Through the ingenious combination design of the airbag and the inflatable convex block, the grasping and transfer stability of stacked corrugated cardboard (especially in the unbundled state) is effectively improved. The airbag is made of silica gel or polyurethane material, with softness and elasticity, providing a soft support when contacting the side of the corrugated cardboard, avoiding damage to the cardboard caused by hard object clamping in the traditional mechanical grasping method. After the airbag is initially inflated to a predetermined width, it continues to be inflated to make the inflatable convex block further expand. The inflatable convex block is made of rubber or rigid foam material, with appropriate hardness and elasticity, and can be inserted into the cardboard gap to form a firm clamping.

[0021] The ingenious design of the inflatable convex block lies in that it can adapt to the gap between corrugated cardboard during the expansion process. By inserting into these gaps, the grasping stability is improved. Compared with relying only on the planar friction force of the airbag, the inflatable convex block penetrates into the cardboard gap to achieve the clamping effect of "point-to-plane" or "line-to-plane". During the grasping and handling process, the friction force and the clamping force are combined, effectively reducing the risk of corrugated cardboard falling, preventing the unbundled cardboard from slipping, and enhancing the overall grasping effect. Description of the Drawings

[0022] Figure 1 It is a schematic structural diagram of a conveying device for corrugated cardboard logistics.

[0023] Figure 2 It is a three-dimensional structural diagram of a cardboard transfer box in a conveying device for corrugated cardboard logistics and various components carried on the cardboard transfer box.

[0024] Figure 3 It is a top view structural diagram of a cardboard transfer box in a conveying device for corrugated cardboard logistics and various components carried on the cardboard transfer box.

[0025] Figure 4 It is a schematic structural diagram of a sliding mounting block, a mounting panel, an airbag, and a second electric push rod in a conveying device for corrugated cardboard logistics.

[0026] Figure 5 It is a schematic structural diagram of a mounting panel, an airbag, and an inflatable convex block in a conveying device for corrugated cardboard logistics.

[0027] In the figure: 1. Support base; 2. Driving motor; 3. Driving gear; 4. Rotating arm; 5. Rotating base; 6. Driven gear; 7. Mounting panel; 8. Electric lifting rod; 9. Support panel; 10. Corrugated cardboard transfer box; 11. Electric roller conveyor; 12. Control panel; 13. Support leg; 14. Sliding mounting block; 15. First electric push rod; 16. Second electric push rod; 17. Mounting seat; 18. Airbag; 19. Inflatable raised block; 20. Square hole; 21. Intelligent air pump; 22. Three-way gas pipeline; 23. Gas transmission hose; 24. Mounting hole; 25. Intelligent camera. Detailed implementation manners

[0028] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0029] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0030] As Figures 1 - 5 shown, a conveying device for corrugated cardboard logistics provided by an embodiment of the present invention includes a support base 1. A plurality of support legs 13 are provided at the bottom of the electric roller conveyor 11, and a control panel 12 is installed on the side of the electric roller conveyor 11. The electric roller conveyor 11 is a device that drives materials to move along a conveying path through electric rollers, and is suitable for the stable, efficient conveying and sorting of packaging materials such as corrugated cardboard.

[0031] The surface of the support base 1 is provided with an electric roller conveyor 11, the surface of the support base 1 is provided with a robotic arm assembly, and a corrugated cardboard transfer box 10 is arranged outside the robotic arm assembly. As a mature existing technology, the robotic arm is widely used in the field of automated blanking, especially in material handling and sorting operations that require high precision and high efficiency. Its flexible multi-joint design and programmable control system enable it to adapt to various complex working environments and task requirements, such as picking up corrugated cardboard from a conveyor. The use of the robotic arm not only improves production efficiency but also reduces errors and labor intensity in manual operations, and has become an indispensable important device in industrial automation.

[0032] The surface of the cardboard transfer box 10 is equipped with an intelligent camera 25. The intelligent camera can identify the specifications, quantity, and stacking status of the corrugated cardboard conveyed on the conveyor, and accurately judge the position and angle of each corrugated cardboard through image analysis. According to the recognition results, the camera can also guide the downstream robotic arm or automatic device to perform precise grasping, handling, and sorting operations, ensuring the orderly stacking of the corrugated cardboard in the transfer box, optimizing the transfer efficiency and reducing damage. In this application, the main function of the intelligent camera is to identify the width of the corrugated cardboard in the stacked state.

[0033] The surface of the sliding mounting block 14 is provided with mounting holes 24, and a first electric push rod 15 is installed inside the mounting holes 24. One end of the first electric push rod 15 is connected to a mounting panel 7. Air bags 18 are installed on the sides of the two mounting panels 7 close to each other, and a number of inflatable raised blocks 19 are provided on the surface of the air bags 18.

[0034] The air bag 18 is made of silicone material or polyurethane material. Among them, the silicone material has excellent softness, elasticity, and high and low temperature resistance, and can provide good deformation and buffering effects when inflated; the polyurethane material is famous for its high wear resistance, tear resistance, and long service life, and is suitable for maintaining stable performance in multiple inflation and deflation operations. The inflatable raised blocks 19 are made of rubber material or rigid foam material. Among them, the rubber material has good elasticity and anti-slip performance, and can provide a firm grasping force when contacting the corrugated cardboard; the rigid foam material is light and has a certain rigidity, and can maintain its shape after inflation, which helps to more accurately fit into the gaps between the corrugated cardboard. The inside of the inflatable raised block 19 is connected to the inside of the air bag 18 to ensure that the raised block 19 can expand synchronously when the air bag 18 is inflated, increasing the stability and reliability of the grasping.

[0035] This material setting can ensure that after the air bag 18 is fully inflated, the inflatable raised block 19 is inflated: the air bag 18 made of silicone or polyurethane material expands first, closely fitting with the corrugated cardboard with a soft and elastic surface, playing a role in protection and buffering; subsequently, the inflatable raised block 19 (made of rubber or rigid foam material) connected to the air bag 18 inside starts to inflate under a specific pressure. Due to the elasticity of the rubber and the rigidity of the rigid foam material, this staged inflation design enables the raised block 19 to better insert into the gaps between the corrugated cardboard, achieving a more stable grasping and handling effect, while avoiding damage to the cardboard.

[0036] An intelligent air pump 21 is installed on the side of the cardboard transfer box 10. The intelligent air pump 21 has a deflation function. One end of the intelligent air pump 21 is connected to a three-way air pipe 22. Both ends of the three-way air pipe 22 far from the intelligent air pump 21 are connected to air hoses 23, and one end of the air hose 23 far from the three-way air pipe 22 is connected to the inside of the air bag 18.

[0037] In an embodiment of the present invention, the electric roller conveyor 11 is used to convey corrugated cardboard in a stacked state to the lower part of the cardboard transfer box 10. Here, the stacked state means that multiple corrugated cardboard are neatly stacked one by one. These corrugated cardboard can be bundled or unbundled.

[0038] Before the stacked corrugated cardboard is sent to directly below the cardboard transfer box 10, the intelligent camera 25 will pre-identify the width of the stacked corrugated cardboard (here, the width direction refers to the direction between the two airbags 18). According to the recognition result, the system will open two groups of first electric push rods 15 installed on the cardboard transfer box 10, and these two groups of first electric push rods 15 drive the airbags 18 to move towards each other to a pre-calculated distance. At this distance setting, when the two airbags 18 are fully inflated, the distance between them will be slightly greater than the width of the stacked corrugated cardboard, so that the airbags 18 can wrap the two sides of the corrugated cardboard.

[0039] When the stacked corrugated cardboard is conveyed to directly below the cardboard transfer box 10, the cardboard transfer box 10 is moved downward through the robotic arm assembly until the cardboard transfer box 10 completely covers the stacked corrugated cardboard. At this time, the system starts the intelligent air pump 21, and the air pump injects gas into the airbags 18 through the three-way air pipe 22 and the air hose 23 to make them fully inflated. At this time, the sides of the two airbags 18 can just contact the sides of the stacked corrugated cardboard, thus avoiding damage to the sides of the corrugated cardboard caused by being squeezed by hard objects. However, since there are often many gaps on the sides of the stacked corrugated cardboard, especially for unbundled corrugated cardboard, this method of lifting and transferring the corrugated cardboard only by the friction generated by the contact between the airbags 18 and the sides of the cardboard is likely to cause some corrugated cardboard to fall off.

[0040] To solve this problem, the technical personnel decided to set a number of uniformly distributed inflatable raised blocks 19 on the surface of the airbag 18 and use different materials to make the airbag 18 and the inflatable raised blocks 19. For example, the airbag 18 is made of silicone or polyurethane materials. These materials have softness, good elasticity and tear resistance, which can ensure a soft supporting force when contacting the sides of the corrugated cardboard; while the inflatable raised blocks 19 are made of rubber or rigid foam materials. These materials have a certain hardness and elasticity when inflated and can effectively insert into the gaps between the corrugated cardboard. Through this material setting, when the airbag 18 is fully inflated, continue to inflate the airbag 18 until the inside of the inflatable raised blocks 19 is also filled with gas. During this process, the inflatable raised blocks 19 will further expand and firmly snap into the gaps between adjacent corrugated cardboard.

[0041] This design not only relies on the friction between the airbag 18 and the side of the corrugated cardboard, but also utilizes the clamping force between multiple inflatable bump blocks 19 and the corrugated cardboard, effectively enhancing the grasping and fixing effect and reducing the risk of the corrugated cardboard falling during lifting and transportation.

[0042] In this embodiment, mounting seats 17 are provided on both sides of the cardboard transfer box 10 near the square holes 20, and a second electric push rod 16 is installed inside the mounting seats 17.

[0043] Square holes 20 are opened on both sides of the cardboard transfer box 10, and a sliding mounting block 14 is slidably connected inside the square holes 20. A guiding chute is opened inside the square holes 20. A guiding slider is installed on the surface of the sliding mounting block 14, and the sliding mounting block 14 is slidably connected inside the square holes 20 through the cooperation of the guiding slider and the guiding chute. One end of the second electric push rod 16 is connected to the surface of the sliding mounting block 14.

[0044] After multiple observations by technicians, during the process of the full expansion of the inflatable bump blocks 19, although most of the inflatable bump blocks 19 can effectively be inserted into the gaps between adjacent corrugated cardboard, there are still some inflatable bump blocks 19 directly against the side of the corrugated cardboard, which may not only damage the integrity of the corrugated cardboard but also affect the transportation effect.

[0045] To solve this problem, after the inflatable bump blocks 19 are fully inflated, the second electric push rod 16 is started to drive the sliding mounting block 14 to perform a slow reciprocating motion inside the square holes 20. Through this motion process, those inflatable bump blocks 19 that were originally against the side of the corrugated cardboard will gradually slide into the gaps between the corrugated cardboard, thereby achieving a more stable grasping effect, avoiding damaging the corrugated cardboard and improving the transportation efficiency.

[0046] In summary, through the ingenious combination design of the airbag 18 and the inflatable bump blocks 19, the grasping and transportation stability of the stacked corrugated cardboard (especially in the unbundled state) is significantly improved. The airbag 18 is made of silicone or polyurethane material, with softness, good elasticity and tear resistance, and can provide a soft supporting force when contacting the side of the corrugated cardboard, effectively avoiding the problem of cardboard damage caused by hard object clamping in the traditional mechanical grasping method. When the airbag 18 is initially inflated to a predetermined width, the inflatable bump blocks 19 on the surface of the airbag 18 are further inflated by continuous inflation. The inflatable bump blocks 19 are made of rubber or rigid foam material, with moderate hardness and elasticity, and can form a more firm clamping force after being inserted into the cardboard gap.

[0047] The ingenuity of the inflatable bump 19 lies in its design that can adapt to the natural gaps between corrugated papers during the inflation process. By inserting into these gaps, it increases the stability of grasping. Compared with the airbag grasping that only relies on planar friction, the inflatable bump 19 can penetrate into the gaps between corrugated papers, achieving a "point-to-plane" or "line-to-plane" clamping effect. When grasping and lifting the corrugated papers, the combination of friction and clamping force further reduces the risk of the corrugated papers falling during transportation. Even in the unbundled state, this design can effectively prevent single sheets of paper from slipping, enhancing the overall grasping effect.

[0048] Compared with the mechanical grasping arms in the prior art, this solution provides a more flexible and efficient grasping method. Traditional mechanical grasping arms usually adopt rigid clamping or pincer-like structures, which are likely to damage the corrugated papers. Especially when dealing with unbundled papers, the grasping is unstable, with risks of slipping or damage. However, through the cooperative design of the airbag and the inflatable bump, this technical solution can not only flexibly adapt to corrugated papers of different thicknesses and states, but also stabilize the papers by having the inflatable bump snap into the gaps, avoiding the defect of hard object extrusion, improving the safety of grasping and the reliability of transportation, and having a broader application prospect.

[0049] It is worth mentioning that during the inflation process of the airbag 18, it can not only closely adhere to the side surfaces of the corrugated papers, but also gradually adjust and organize the stacked paper shells that are not neatly arranged into a neater state through its soft elastic characteristics. As the airbag 18 gradually expands, its surface will exert a uniform pressure on the corrugated papers, causing the tilted or misaligned paper shells to receive a slight corrective force during the inflation process and finally be neatly arranged. This gentle organizing effect can effectively avoid the risks of the paper shells sliding, toppling, or falling during grasping and transportation, improving the reliability and efficiency of the overall operation.

[0050] In this embodiment, the robotic arm assembly includes:

[0051] The surface of the support base 1 is rotatably connected with a rotating base 5. A bearing seat is installed on the surface of the support base 1, and the rotating base 5 is rotatably connected to the surface of the support base 1 through the bearing seat.

[0052] One end of the rotating base 5 is connected with a rotating arm 4. The end of the rotating arm 4 far from the rotating base 5 is connected with a support panel 9. An electric lifting rod 8 is installed on the surface of the support panel 9, and the cardboard transfer box 10 is fixedly connected to one end of the electric lifting rod 8;

[0053] A passive gear 6 is sleeved outside the rotating base 5. A driving motor 2 is installed on the surface of the support base 1, and a driving gear 3 is installed at the output end of the driving motor 2. The outside of the driving gear 3 is meshed and connected with the outside of the passive gear 6.

[0054] In this embodiment, when it is necessary to drive the cardboard transfer box 10 to rotate, the drive motor 2 is started. The drive motor 2 drives the driven gear 6 to rotate through the rotation of the driving gear 3, and then the driven gear 6 drives the rotating base 5 and the rotating arm 4 to rotate, thereby driving the support panel 9, the electric lifting rod 8 and the cardboard transfer box 10 to rotate together. When it is necessary to cover the periphery of the stacked corrugated cardboard with the cardboard transfer box 10, the electric lifting rod 8 is started, and the electric lifting rod 8 drives the cardboard transfer box 10 to move downward until the cardboard transfer box 10 completely covers the outside of the stacked corrugated cardboard.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A conveying device for corrugated cardboard logistics, comprising a support base (1), and an electric roller conveyor (11) is arranged on the surface of the support base (1), characterized in that, A robotic arm assembly is provided on the surface of the support base (1), and a cardboard transfer box (10) is provided on the outer side of the robotic arm assembly; An intelligent camera (25) is installed on the surface of the cardboard transfer box (10). Square holes (20) are formed on both sides of the cardboard transfer box (10). A sliding mounting block (14) is slidably connected inside the square holes (20). Mounting holes (24) are formed on the surface of the sliding mounting block (14), and a first electric push rod (15) is installed inside the mounting holes (24). One end of the first electric push rod (15) is connected to a mounting panel (7). Air bags (18) are installed on the sides of the two mounting panels (7) that are close to each other, and a number of inflatable raised blocks (19) are provided on the surface of the air bags (18); The air bag (18) is made of silicone material or polyurethane material. The inflatable raised block (19) is made of rubber material or rigid foam material. The inside of the inflatable raised block (19) is communicated with the inside of the air bag (18); An intelligent air pump (21) is installed on the side of the cardboard transfer box (10), and one end of the intelligent air pump (21) is connected to a three-way air pipe (22). Both ends of the three-way air pipe (22) away from the intelligent air pump (21) are connected to air delivery hoses (23); Mounting seats (17) are provided at positions on both sides of the cardboard transfer box (10) close to the square holes (20), and a second electric push rod (16) is installed inside the mounting seats (17).

2. A conveying device for corrugated cardboard logistics according to claim 1, characterized in that, One end of the air delivery hose (23) away from the three-way air pipe (22) is communicated with the inside of the air bag (18).

3. A conveying device for corrugated cardboard logistics according to claim 1, characterized in that, A guiding chute is formed inside the square hole (20). A guiding slider is installed on the surface of the sliding mounting block (14), and the sliding mounting block (14) is slidably connected inside the square hole (20) through the cooperation of the guiding slider and the guiding chute. One end of the second electric push rod (16) is connected to the surface of the sliding mounting block (14).

4. A conveying device for corrugated cardboard logistics according to claim 1, characterized in that, The robotic arm assembly includes: A rotating base (5) is rotatably connected to the surface of the support base (1). One end of the rotating base (5) is connected to a rotating arm (4). One end of the rotating arm (4) away from the rotating base (5) is connected to a support panel (9). An electric lifting rod (8) is installed on the surface of the support panel (9). The cardboard transfer box (10) is fixedly connected to one end of the electric lifting rod (8); A passive gear (6) is sleeved on the outer side of the rotating base (5). A driving motor (2) is installed on the surface of the support base (1), and a driving gear (3) is installed at the output end of the driving motor (2). The outer side of the driving gear (3) is meshed with the outer side of the passive gear (6).

5. The conveying device for corrugated cardboard logistics according to claim 4, wherein, A bearing seat is installed on the surface of the support base (1), and the rotating base (5) is rotatably connected to the surface of the support base (1) through the bearing seat.

6. A conveying device for corrugated cardboard logistics according to claim 1, characterized in that, A number of support legs (13) are provided at the bottom of the electric roller conveyor (11), and a control panel (12) is installed on the side of the electric roller conveyor (11).

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