Conveying device for corrugated board logistics

Abstract

The invention is suitable for the technical field of corrugated board transfer, and particularly relates to a corrugated board logistics conveying device which comprises a supporting base, an electric roller conveyor is arranged on the surface of the supporting base, a mechanical arm assembly is arranged on the surface of the supporting base, and a paperboard transfer box is arranged on the outer side of the mechanical arm assembly. By means of the ingenious combination design of the air bags and the inflation protruding blocks, the grabbing and transferring stability of stacked corrugated boards (especially in the unbound state) is effectively improved. The air bag is made of silica gel or polyurethane materials, has flexibility and elasticity and provides soft support when making contact with the side face of the corrugated board, and the situation that the corrugated board is damaged due to clamping of hard objects in a traditional mechanical grabbing mode is avoided. And after the air bag is preliminarily expanded to a preset width, the air bag is continuously inflated to further expand the inflatable convex block. The inflatable protruding blocks are made of rubber or hard foam materials, have moderate hardness and elasticity and can be inserted into gaps of paperboards to form firm clamping.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated cardboard transfer, in particular 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 is crucial to the operation of the entire supply chain. In the logistics and transportation process of corrugated cardboard, conveyor belts are often used to transport corrugated cardboard from one station to another, especially when transporting over long distances, the efficiency of the conveyor belt is particularly important. However, at the end of the conveyor belt, the unloading and transfer operations of corrugated cardboard are usually completed by robotic arms or robots. Existing transfer robotic arms and robots transfer corrugated cardboard from the conveyor belt to a designated location by grabbing or clamping to achieve automated stacking, sorting and handling tasks. These robotic arms or robots mostly use rigid clamping structures, such as pliers or mechanical fingers, to grab the corrugated cardboard and perform transfer operations through clamping force or suction cup adsorption force.

[0003] However, in the prior art, these transfer manipulators and robots have some obvious technical defects in the unloading process. Especially for stacked corrugated cardboard (especially unbundled stacks), due to the gaps between the cardboards or uneven stacking, it is difficult for the manipulator to apply uniform clamping force to all the cardboards at the same time when grabbing. If the clamping force is too large, the rigid clamping tool is likely to damage the edge and surface of the cardboard, resulting in damage to the packaging material; if the clamping force is too small, it is difficult to hold the cardboard firmly, causing the cardboard to fall during transportation. This situation is particularly serious for unbundled corrugated cardboard stacks, because unbundled cardboard is more likely to slide, dislocate, etc. during the stacking process, further increasing the difficulty of grabbing and transporting.

[0004] Therefore, there are two main problems in the prior art when handling stacked corrugated cardboard (especially unbundled) during transportation: first, the integrity of the cardboard is easily damaged by the mechanical arm or robot during the clamping process; second, the cardboard is easily dropped during transportation due to uneven or insufficient clamping force. Summary of the invention

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

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

[0007] A conveying device for corrugated cardboard logistics, comprising a supporting base, wherein a motorized roller conveyor is arranged on the surface of the supporting base, a mechanical arm assembly is arranged on the surface of the supporting base, and a cardboard transfer box is arranged on the outer side of the mechanical arm assembly;

[0008] A smart 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 hole, a mounting hole is opened on the surface of the sliding mounting block, and a first electric push rod is installed inside the mounting hole, one end of the first electric push rod is connected to a mounting panel, and air bags are installed on the sides of the two mounting panels close to each other, and a plurality of inflatable protrusions 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 supply pipe, and both ends of the three-way air supply pipe away from the intelligent air pump are connected to air supply hoses;

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

[0011] Furthermore, one end of the air delivery hose away from the three-way air delivery pipe is connected to the interior of the airbag.

[0012] Furthermore, the airbag is made of a silicone material or a polyurethane material, the inflatable protrusion is made of a rubber material or a hard foam material, and the interior of the inflatable protrusion is connected to the interior of the airbag.

[0013] Furthermore, a guide groove is opened inside the square hole, a guide slider is installed on the surface of the sliding mounting block, and the sliding mounting block is slidably connected to the inside of the square hole through the cooperation of the guide slider and the guide groove, and one end of the second electric push rod is connected to the surface of the sliding mounting block.

[0014] Furthermore, the mechanical arm assembly comprises:

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

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

[0017] Furthermore, 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] Furthermore, a plurality of supporting legs are provided at the bottom of the electric roller conveyor, and a control panel is installed on the side of the electric roller conveyor.

[0019] The present invention provides a conveying device for corrugated cardboard logistics, which has the following beneficial effects:

[0020] The clever combination of airbags and inflatable convex blocks effectively improves the stability of grabbing and transporting stacked corrugated cardboard (especially in the unbound state). The airbags are made of silicone or polyurethane materials, which are soft and elastic. They provide gentle support when in contact with the side of the corrugated cardboard, avoiding damage to the cardboard caused by hard objects clamping in traditional mechanical grabbing methods. After the airbags are initially inflated to a predetermined width, they continue to inflate to further expand the inflatable convex blocks. The inflatable convex blocks are made of rubber or hard foam materials, which have moderate hardness and elasticity and can be inserted into the gaps between the cardboards to form a firm clamp.

[0021] The clever design of the inflatable raised block is that it can adapt to the gaps between corrugated cardboards during the expansion process, and improve the gripping stability by inserting into these gaps. Compared with relying solely on the plane friction of the airbag, the inflatable raised block penetrates deep into the cardboard gaps to achieve a "point-to-face" or "line-to-face" clamping effect, so that during the gripping and handling process, the friction force and the clamping force are combined, effectively reducing the risk of corrugated cardboard falling, preventing unbound cardboard from slipping, and enhancing the overall gripping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 The present invention is a schematic diagram of the structure of a conveying device for corrugated cardboard logistics.

[0023] Figure 2 The present invention is a three-dimensional structural schematic 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 The present invention is a schematic diagram of the top structure 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 The present invention is a schematic diagram of the structure of a sliding mounting block, a mounting panel, an air bag, and a second electric push rod in a conveying device for corrugated cardboard logistics.

[0026] Figure 5 The present invention is a schematic diagram of the structure of an installation panel, an air bag and an inflatable raised block in a conveying device for corrugated cardboard logistics.

[0027] In the figure: 1. Support base; 2. Drive motor; 3. Active gear; 4. Rotating arm; 5. Rotating base; 6. Passive gear; 7. Mounting panel; 8. Electric lifting rod; 9. Support panel; 10. 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 protrusion block; 20. Square hole; 21. Intelligent air pump; 22. Three-way air pipe; 23. Air hose; 24. Mounting hole; 25. Intelligent camera. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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 intended to limit the present invention.

[0029] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0030] like Figure 1-Figure 5 As 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 arranged at the bottom of an 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 smooth and 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 mechanical arm assembly, and a cardboard transfer box 10 is provided on the outside of the mechanical arm assembly. As a mature existing technology, the mechanical arm is widely used in the field of automated material unloading, 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 removing corrugated cardboard from a conveyor. The use of the mechanical arm not only improves production efficiency, but also reduces the error and labor intensity of manual operation, and has become an indispensable and important equipment in industrial automation.

[0032] A smart camera 25 is installed on the surface of the cardboard transfer box 10. The smart camera can identify the specifications, quantity and stacking status of the corrugated cardboards conveyed on the conveyor, and accurately determine the position and angle of each corrugated cardboard through image analysis. According to the recognition results, the camera can also guide the downstream mechanical arm or automatic device to perform precise grasping, handling and sorting operations to ensure the orderly stacking of the corrugated cardboards in the transfer box, optimize the transfer efficiency and reduce damage. In this application, the main function of the smart camera is to identify the width of the stacked corrugated cardboards.

[0033] The surface of the sliding mounting block 14 is provided with a mounting hole 24, and a first electric push rod 15 is installed inside the mounting hole 24, and one end of the first electric push rod 15 is connected to the 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 plurality of inflatable protrusions 19 are arranged on the surface of the air bags 18.

[0034] The airbag 18 is made of silicone material or polyurethane material. The silicone material has excellent softness, elasticity and high and low temperature resistance, and can provide good deformation and cushioning effect when inflated; the polyurethane material is known for its high wear resistance, tear resistance and long service life, and is suitable for maintaining stable performance during multiple inflation and deflation operations. The inflatable protrusion block 19 is made of rubber material or hard foam material. The rubber material has good elasticity and anti-slip properties, and can provide a stable grip when in contact with the corrugated paper shell; the hard foam material is light and has a certain rigidity. It can maintain its shape after inflation, which helps to more accurately fit into the gap between the corrugated paper shells. The interior of the inflatable protrusion block 19 is connected to the interior of the airbag 18, ensuring that the protrusion block 19 can expand synchronously when the airbag 18 is inflated, increasing the stability and reliability of the grip.

[0035] This material setting ensures that the inflatable protrusion 19 is inflated only after the airbag 18 is fully inflated: the airbag 18 made of silicone or polyurethane material is inflated first, and its soft and elastic surface fits tightly with the corrugated paper shell to play a protective and cushioning role; then, the inflatable protrusion 19 (made of rubber or hard foam material) connected to the airbag 18 begins to inflate under a specific pressure. Due to the elasticity of rubber and the rigidity of hard foam material, this staged expansion design enables the protrusion 19 to better insert into the gap between the corrugated paper shells, achieving a more stable grasping and carrying effect, while avoiding damage to the paper shell.

[0036] An intelligent air pump 21 is installed on the side of the cardboard transfer box 10, and 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, and both ends of the three-way air pipe 22 away from the intelligent air pump 21 are connected to air hoses 23, and one end of the air hose 23 away from the three-way air pipe 22 is connected to the inside of the air bag 18.

[0037] In one embodiment of the present invention, the electric roller conveyor 11 is used to convey the corrugated cardboards in a stacked state to the bottom of the cardboard transfer box 10. The stacked state here means that a plurality of corrugated cardboards are neatly stacked one by one, and these corrugated cardboards can be bundled or unbundled.

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

[0039] When the stacked corrugated cardboards are transported to the bottom of the cardboard transfer box 10, the cardboard transfer box 10 is moved down by the mechanical arm assembly until the cardboard transfer box 10 completely covers the stacked corrugated cardboards. At this time, the system starts the intelligent air pump 21, and the air pump injects gas into the airbag 18 through the three-way air pipe 22 and the air hose 23 to fully expand it. At this time, the sides of the two airbags 18 can just contact the sides of the stacked corrugated cardboards, thereby preventing the sides of the corrugated cardboards from being damaged by being squeezed by hard objects. However, since there are often more gaps on the sides of the stacked corrugated cardboards, especially the unbound corrugated cardboards, this method of lifting and transferring the corrugated cardboards by relying solely on the friction generated by the contact between the airbags 18 and the sides of the cardboards can easily cause some of the corrugated cardboards to fall off.

[0040] In response to this problem, after research, the technicians decided to set a number of evenly distributed inflatable protrusions 19 on the surface of the airbag 18, and use different materials to make the airbag 18 and the inflatable protrusions 19. For example, the airbag 18 is made of silicone or polyurethane materials, which are soft, elastic and tear-resistant, and can ensure that they provide gentle support when in contact with the side of the corrugated cardboard; while the inflatable protrusions 19 are made of rubber or hard foam materials, which have a certain hardness and elasticity when expanded and can effectively insert into the gaps between the corrugated cardboards. With this material setting, when the airbag 18 is fully expanded, continue to inflate the airbag 18 until the inflatable protrusions 19 are also filled with gas. In this process, the inflatable protrusions 19 will further expand and firmly fit into the gaps between adjacent corrugated cardboards.

[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 protrusions 19 and the corrugated cardboard, which effectively enhances the gripping and fixing effects and reduces the risk of the corrugated cardboard falling during lifting and transportation.

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

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

[0044] After repeated observations by technical personnel, it was found that during the full expansion of the inflatable protrusions 19, although most of the inflatable protrusions 19 can be effectively inserted into the gaps between adjacent corrugated cardboards, some of the inflatable protrusions 19 still directly rest against the sides of the corrugated cardboards, which may not only damage the integrity of the corrugated cardboards, but also affect the transfer effect.

[0045] In order to solve this problem, after the inflatable protrusions 19 are fully expanded, the second electric push rod 16 is started to drive the sliding mounting block 14 to perform slow reciprocating motion in the square hole 20. Through this motion process, the inflatable protrusions 19 that originally pressed against the side of the corrugated cardboard will gradually slide into the gaps between the corrugated cardboards, thereby achieving a more stable gripping effect, avoiding damage to the corrugated cardboard and improving the transfer efficiency.

[0046] In summary, the clever combination design of the airbag 18 and the inflatable protrusion block 19 significantly improves the grasping and transportation stability of the stacked corrugated cardboard (especially in the unbound state). The airbag 18 is made of silicone or polyurethane material, which has softness, good elasticity and tear resistance. It can provide a gentle support force when it contacts the side of the corrugated cardboard, and effectively avoids the problem of cardboard damage caused by hard object clamping in the traditional mechanical grasping method. After the airbag 18 is initially expanded to a predetermined width, the inflatable protrusion block 19 on the surface of the airbag 18 is further expanded by continuing to inflate. The inflatable protrusion block 19 is made of rubber or hard foam material, has moderate hardness and elasticity, and can form a stronger clamping force after being inserted into the gap between the cardboards.

[0047] The cleverness of the inflatable protrusions 19 lies in that their design can adapt to the natural gaps between corrugated cardboards during the expansion process, and by inserting into these gaps, the stability of the grip is increased. Compared with the airbag gripping that only relies on the friction of the plane, the inflatable protrusions 19 can penetrate into the gaps between the corrugated cardboards to achieve a "point-to-plane" or "line-to-plane" clamping effect, so that when the corrugated cardboard is gripped and lifted, the friction and clamping forces are combined, further reducing the risk of the corrugated cardboard falling during transportation. Even in the unbound state, this design can effectively prevent a single cardboard from slipping, enhancing the overall gripping effect.

[0048] Compared with the mechanical grabbing arms in the prior art, this solution provides a more flexible and efficient grabbing method. Traditional mechanical grabbing arms usually adopt a rigid clamping or clamp-like structure, which can easily damage the corrugated cardboard, especially when handling unbundled cardboard, the grabbing is unstable and there is a risk of slipping or damage. However, this technical solution can not only flexibly adapt to corrugated cardboard of different thicknesses and states through the coordinated design of airbags and inflatable protrusions, but also stabilize the cardboard by inserting the inflatable protrusions into the gap, avoiding the defect of hard object squeezing, improving the safety of grabbing and the reliability of transportation, and has a wider application prospect.

[0049] It is worth mentioning that during the inflation process, the airbag 18 can not only fit tightly with the side of the corrugated cardboard, but also gradually adjust and arrange the unevenly stacked cardboard into a more orderly state through its soft elastic properties. As the airbag 18 gradually expands, its surface will apply uniform pressure to the corrugated cardboard, so that the tilted or misaligned cardboard will be slightly corrected during the inflation process and finally arranged neatly. This gentle sorting effect can effectively avoid the risk of slipping, tipping or falling of the cardboard during the grabbing and transportation process, and improve the reliability and efficiency of the overall operation.

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

[0051] The surface of the support base 1 is rotatably connected to 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 to a rotating arm 4, and one end of the rotating arm 4 away from the rotating base 5 is connected to a supporting panel 9, and an electric lifting rod 8 is installed on the surface of the supporting panel 9, and a cardboard transfer box 10 is fixedly connected to one end of the electric lifting rod 8;

[0053] 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 supporting base 1 , and a driving gear 3 is installed on the output end of the driving motor 2 , and the outer side of the driving gear 3 is meshed with the outer side 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, and the drive motor 2 drives the passive gear 6 to rotate through the rotation of the active gear 3, and then the passive 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 outer periphery of the stacked corrugated cardboard, 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 outer side of the stacked corrugated cardboard.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A conveying device for corrugated cardboard logistics, comprising a support base (1), wherein a motorized roller conveyor (11) is arranged on the surface of the support base (1), characterized in that: A mechanical arm assembly is arranged on the surface of the support base (1), and a cardboard transfer box (10) is arranged on the outside of the mechanical arm assembly; A smart camera (25) is installed on the surface of the cardboard transfer box (10), square holes (20) are provided on both sides of the cardboard transfer box (10), and a sliding mounting block (14) is slidably connected inside the square hole (20), a mounting hole (24) is provided on the surface of the sliding mounting block (14), and a first electric push rod (15) is installed inside the mounting hole (24), one end of the first electric push rod (15) is connected to a mounting panel (7), and air bags (18) are installed on the sides of the two mounting panels (7) that are close to each other, and a plurality of inflatable protrusions (19) are provided on the surface 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 supply pipe (22), and both ends of the three-way air supply pipe (22) away from the intelligent air pump (21) are connected to air supply hoses (23); Mounting seats (17) are provided at positions close to the square holes (20) on both sides of the cardboard transfer box (10), 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 delivery pipe (22) is connected to the interior of the air bag (18).

3. A conveying device for corrugated cardboard logistics according to claim 1, characterized in that: The airbag (18) is made of a silicone material or a polyurethane material, the inflatable protrusion (19) is made of a rubber material or a hard foam material, and the interior of the inflatable protrusion (19) is connected to the interior of the airbag (18).

4. A conveying device for corrugated cardboard logistics according to claim 1, characterized in that: A guide slot is provided inside the square hole (20), a guide slider is installed on the surface of the sliding mounting block (14), and the sliding mounting block (14) is slidably connected to the inside of the square hole (20) through the cooperation of the guide slider and the guide slot, and one end of the second electric push rod (16) is connected to the surface of the sliding mounting block (14).

5. The conveying device for corrugated cardboard logistics according to claim 1, characterized in that: The mechanical arm assembly comprises: The surface of the support base (1) is rotatably connected to a rotating base (5), and one end of the rotating base (5) is connected to a rotating arm (4), and one end of the rotating arm (4) away from the rotating base (5) is connected to a support panel (9), and 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); A passive gear (6) is sleeved on the outer side of the rotating base (5), a driving motor (2) is mounted on the surface of the supporting base (1), and a driving gear (3) is mounted on the output end of the driving motor (2), and the outer side of the driving gear (3) is meshedly connected with the outer side of the passive gear (6).

6. A conveying device for corrugated cardboard logistics according to claim 5, characterized in that: 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) via the bearing seat.

7. The conveying device for corrugated cardboard logistics according to claim 1, characterized in that: A plurality of supporting legs (13) are arranged 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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