Corrugated board defect real-time detection system based on AI vision and detection method thereof

Abstract

The invention belongs to the technical field of corrugated board defective product detection, and particularly relates to a corrugated board defective product real-time detection system based on AI vision and a detection method thereof.The corrugated board defective product real-time detection system comprises a conveying table and a conveying mechanism arranged in the first direction, and the conveying mechanism comprises two transmission rods rotationally and symmetrically arranged on the conveying table; the two transmission rods are fixedly provided with transmission rollers and a transmission belt in transmission between the two transmission rollers, a transmission motor fixedly connected with the transmission rods is installed on the conveying table, the high rod is fixedly connected with the edge of the top of the conveying table in the direction perpendicular to the first direction, and an L-shaped support is fixedly arranged at the top end of the high rod in the second direction of the conveying table; a lifting push rod is fixedly arranged on the L-shaped support in the direction perpendicular to the first direction. The paperboard cutting device is simple in structure, and when a paperboard needs to be cut, the paperboard can be fixed and cut at the same time, so that the working efficiency is improved, and people can use the paperboard cutting device conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of corrugated cardboard defective product detection, and in particular to an AI vision-based real-time corrugated cardboard defect detection system and a detection method thereof. Background Art

[0002] With the continuous development of artificial intelligence technology, AI vision is increasingly being used in the manufacturing industry. Quality inspection of finished corrugated cardboard is a crucial step in the production process. During the production process, various factors, including the production process and equipment operation, can cause various defects such as wrinkles, dents, bulges, and holes in the corrugated cardboard. Using AI vision technology for finished product inspection can effectively improve production efficiency and product quality.

[0003] In the prior art, when detecting defects in corrugated cardboard in real time, it is necessary to cut out a portion of the cardboard to detect the amount of glue applied to the cardboard. However, when cutting the cardboard, it is generally necessary to fix the cardboard first and then cut it. The two cannot be performed at the same time, which reduces work efficiency.

[0004] To this end, we propose an AI vision-based real-time detection system and detection method for corrugated cardboard defects to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects of the prior art and provide a real-time detection system for corrugated cardboard defects based on AI vision and a detection method thereof. When the cardboard needs to be cut, the cardboard can be fixed and cut at the same time, thereby improving work efficiency and making it more convenient for people to use.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A real-time detection system and method for corrugated cardboard defects based on AI vision, comprising a conveyor platform and a conveying mechanism arranged along a first direction, wherein the conveying mechanism comprises two transmission rods rotatably symmetrically arranged on the conveyor platform, each of the transmission rods being fixed with a transmission roller and a transmission belt transmitted between the two transmission rollers, and a transmission motor fixedly connected to the transmission rods being installed on the conveyor platform. The system also comprises: A high pole is fixedly connected to the top edge of the conveyor platform perpendicular to the first direction, an L-shaped bracket is fixedly provided on the top of the high pole along the second direction of the conveyor platform, a lifting push rod is fixedly provided on the L-shaped bracket perpendicular to the first direction, and a fixing plate is fixedly provided on the bottom end of the lifting push rod; The fixing mechanism includes a pressure cylinder fixed to the bottom of the fixing plate and a positioning column slidably provided along the length direction of the pressure cylinder, one end of the positioning column is fixed with a circular plate slidably connected to the inner wall of the pressure cylinder, a first spring fixedly connected to the circular plate is fixed on the inner wall of the top of the pressure cylinder, and a sliding groove and a pulling component with adjustable position arranged in the sliding groove are provided on the opposite sides of the two pressure cylinders; The shearing mechanism includes a telescopic seat fixedly connected to the bottom of the fixed plate in the longitudinal direction of the pressing cylinder and a shearing knife that can be telescopically arranged in the vertical direction of the telescopic seat. The telescopic seat is respectively provided with sliding holes corresponding to the two directions of the pressing cylinder and a push-pull assembly that can slide in the sliding holes to push and pull the shearing knife; A notch is provided on the conveying platform along the first direction, and a rotating component for transferring the cardboard and corresponding to the shearing mechanism is provided in the notch.

[0007] Furthermore, the pulling assembly includes a slider head that slides in the sliding groove and is connected to a pull rope, and the bottom of the fixed plate is rotatably connected to an auxiliary wheel for tensioning the pull rope.

[0008] Furthermore, the push-pull assembly includes a pull plate slidably arranged in the sliding hole and connected to one end of the pull rope. A round rod and a second spring fixedly mounted on the round rod are fixed at the bottom of the pull plate along the length direction of the telescopic seat. A horizontal rod connected to the shear knife is fixed at the bottom end of the round rod along the second direction.

[0009] Furthermore, the rotating assembly includes a support plate fixed on the inner wall of the notch and a rotating rod rotatably arranged on the support plate, the top of the rotating rod is fixed with a rotating plate, and a shearing plate fixed at one end of the rotating plate and having a collecting groove, and the collecting groove on the shearing plate can collect and temporarily store the cut cardboard.

[0010] Furthermore, a rotating motor is installed at the bottom of the supporting plate, and the output shaft of the rotating motor is fixedly connected to the rotating rod.

[0011] Furthermore, a support plate is fixedly provided on the top of the shear plate corresponding to the second direction, and a second electric push rod and a second push plate for pushing the corrugated cardboard are fixedly provided on the support plate.

[0012] Furthermore, a pH value detection tank for detecting corrugated cardboard is fixedly connected to the conveying platform along the second direction.

[0013] Furthermore, an L-shaped seat and an industrial camera for monitoring corrugated cardboard are set up along the height direction of the conveyor platform, and a device for performing AI analysis on the data collected by the industrial camera is fixed on the top of the L-shaped seat.

[0014] Compared with the prior art, the advantages of the present invention are: 1. In this solution, the lifting push rod drives the fixed plate downward until the positioning column contacts and fixes the corrugated cardboard. Then, the positioning column drives the circular plate to slide in the pressing cylinder and compresses the first spring. At the same time, the movement of the circular plate drives the slider head upward; 2. In this solution, the traction rope slides on the auxiliary wheel, and the other end of the rope drives the pull plate to move downward in the opposite direction of the slider head. The pull plate drives the round rod to move downward and compresses the second spring. When the round rod moves, it drives the shear knife to move vertically downward through the horizontal rod and split the corrugated cardboard into two. At the same time, the corrugated cardboard on one side of the collecting trough falls into the collecting trough for temporary storage, thereby achieving the effect of fixing the corrugated cardboard and cutting it for sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 This is a structural diagram of the AI vision-based real-time detection system for corrugated cardboard defects and its detection method proposed in the present invention; Figure 2 This is a schematic diagram of the top view of the AI vision-based real-time detection system for corrugated cardboard defects and its detection method proposed in the present invention; Figure 3 The present invention proposes a real-time detection system and method for detecting defects in corrugated cardboard based on AI vision. Figure 2 A magnified schematic diagram of part A; Figure 4 This is a side structural schematic diagram of the fixing mechanism and shearing mechanism parts of the AI vision-based real-time detection system for corrugated cardboard defects and the detection method thereof proposed in the present invention.

[0017] The corresponding relationship of the reference numbers in the accompanying drawings is as follows: Conveyor platform; 2. Conveying mechanism; 3. Notch; 4. L-shaped bracket; 5. Lifting push rod; 6. Fixed plate; 7. Pressing cylinder; 701. First spring; 702. Round plate; 703. Positioning column; 704. Slider head; 705. Auxiliary plate; 706. Auxiliary wheel; 707. Pull rope; 8. Telescopic seat; 801. Pull plate; 802. Second spring; 803. Round rod; 804. Horizontal rod; 805. Shear knife; 9. L-shaped seat; 901. Industrial camera; 902. Controller; 903. First electric push rod; 904. First push plate; 10. Support plate; 1001. Rotating rod; 1002. Rotating plate; 1003. Shear plate; 1004. Rotating motor; 1005. Second electric push rod; 1006. Second push plate; 1007. Support plate; 11. pH value detection tank. DETAILED DESCRIPTION

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Reference Figure 1-Figure 4 A real-time detection system and method for corrugated cardboard defects based on AI vision are provided, comprising a conveyor platform 1 and a conveying mechanism 2 arranged along a first direction. The conveying mechanism 2 comprises two transmission rods rotatably and symmetrically arranged on the conveyor platform 1. The two transmission rods are each fixedly provided with a transmission roller and a transmission belt transmitted between the two transmission rollers. A transmission motor fixedly connected to the transmission rods is installed on the conveyor platform 1, and further comprising: The high pole is fixedly connected to the top edge of the conveyor platform 1 perpendicularly in the first direction. An L-shaped bracket 4 is fixed to the top of the high pole along the second direction of the conveyor platform 1. A lifting push rod 5 is fixed to the L-shaped bracket 4 perpendicularly in the first direction. A fixing plate 6 is fixed to the bottom end of the lifting push rod 5. The fixing mechanism includes a pressing cylinder 7 fixed to the bottom of the fixing plate 6 and a positioning column 703 slidably provided along the length direction of the pressing cylinder 7. A circular plate 702 slidably connected to the inner wall of the pressing cylinder 7 is fixed to one end of the positioning column 703. A first spring 701 fixedly connected to the circular plate 702 is fixed on the inner wall of the top of the pressing cylinder 7. A sliding groove and a pulling component with an adjustable position arranged in the sliding groove are provided on the opposite sides of the two pressing cylinders 7. The shearing mechanism includes a telescopic seat 8 fixedly connected to the bottom of the fixed plate 6 in the longitudinal direction of the pressing cylinder 7 and a shearing knife 805 that can be retracted along the vertical direction of the telescopic seat 8. The telescopic seat 8 has sliding holes corresponding to the two pressing cylinders 7 and a push-pull assembly that can slide in the sliding holes to push and pull the shearing knife 805. The push-pull assembly can drive the shearing knife 805 to retract and retract to complete the shearing sampling of the corrugated cardboard. The notch 3 is provided on the conveying platform 1 along the first direction. A rotating assembly for transferring cardboard and corresponding to the shearing mechanism is provided in the notch 3 .

[0020] In this embodiment, the pulling assembly includes a slider head 704 that slides in a slide groove and is connected to a pull rope 707. The bottom of the fixed plate 6 is rotatably connected to an auxiliary wheel 706 for tensioning the pull rope 707. When the slider head 704 moves, it can drive the pull rope 707 to slide on the auxiliary wheel 706.

[0021] In this embodiment, the push-pull assembly includes a pull plate 801 that can be slidably arranged in the sliding hole and connected to one end of the pull rope 707. A round rod 803 and a second spring 802 fixedly sleeved on the round rod 803 are fixed at the bottom of the pull plate 801 along the length direction of the telescopic seat 8. A horizontal rod 804 connected to the shear knife 805 is fixed at the bottom end of the round rod 803 along the second direction. When the pull plate 801 moves, it drives the round rod 803 to move downward and compresses the second spring 802. At the same time, under the action of the horizontal rod 804, it drives the shear knife 805 to move downward to perform shearing.

[0022] In this embodiment, the rotating assembly includes a support plate 10 fixed on the inner wall of the notch 3 and a rotating rod 1001 rotatably arranged on the support plate 10, a rotating plate 1002 is fixed at the top of the rotating rod 1001, and a shear plate 1003 is fixed at one end of the rotating plate 1002 and has a collecting groove, a rotating motor 1004 is installed at the bottom of the support plate 10, and the output shaft of the rotating motor 1004 is fixedly connected to the rotating rod 1001.

[0023] In this embodiment, a support plate 1007 is fixedly provided on the top of the shear plate 1003 corresponding to the second direction, and a second electric push rod 1005 and a second push plate 1006 for pushing the corrugated cardboard are fixedly provided on the support plate 1007.

[0024] In this embodiment, a pH value detection trough for detecting corrugated cardboard is fixedly connected to the conveyor platform 1 along the second direction, an L-shaped seat 9 and an industrial camera 901 for monitoring corrugated cardboard are set up along the height direction of the conveyor platform 1, and an AI analysis device for the data collected by the industrial camera 901 is fixed on the top of the L-shaped seat 9.

[0025] The implementation principle of the real-time detection system and detection method of corrugated cardboard defects based on AI vision in the embodiment of the present application is as follows: the corrugated cardboard is placed on the conveying mechanism 2 for conveying. When the corrugated cardboard passes through the L-shaped seat 9, the industrial camera 901 is used to shoot the corrugated cardboard and upload it to the control to automatically identify the corrugated cardboard's wrinkles, dents, bulges or holes and other defects. Because the device is set in advance by the control before use, the first sheet after every fifty sheets of corrugated cardboard needs to be sampled separately to detect its glue application amount for detection. The controller 902 automatically controls the first electric push rod 903 sends a command to drive the first push plate 904 to move and push the corrugated cardboard on the conveying mechanism 2 onto the shearing plate 1003. Then, the controller 902 starts the rotating motor 1004, so that the rotating rod 1001 drives the rotating plate 1002 to rotate, and then drives the shearing plate 1003 to rotate ninety degrees and be located below the shearing knife 805. At the same time, the lifting push rod 5 drives the fixed plate 6 to move downward until the positioning column 703 contacts and fixes the corrugated cardboard, and then the positioning column 703 drives the circular plate 702 to slide in the pressing cylinder 7 and compresses the first spring 70 1. At the same time, when the circular plate 702 moves, it drives the slider head 704 to move upward, and at the same time, the traction rope 707 slides on the auxiliary wheel 706, and the other end of the rope 707 drives the pull plate 801 to move downward in the opposite direction of the slider head 704. The pull plate 801 drives the round rod 803 to move downward and compresses the second spring 802. When the round rod 803 moves, it drives the shear knife 805 to move vertically downward through the horizontal rod 804 and splits the corrugated cardboard into two. At the same time, the corrugated cardboard on one side of the collecting trough falls into the collecting trough for temporary storage, thereby realizing the corrugated cardboard cutting process. The corrugated cardboard is fixed while it is sheared and sampled. After the shearing is completed, the lifting push rod 5 drives the fixed plate 6 to return to its original position. The controller 902 sends an instruction to the second electric push rod 1005 to drive the second push plate 1006 to move, and pushes the sampled cardboard piece into the pH value detection tank for glue amount detection. Since the pH value detection tank is provided with a camera that is connected to the controller 902 in real time, the situation in the pH value detection tank can be observed through the camera, and the data can be uploaded to the controller 902 for record, thereby completing the glue amount detection of the corrugated cardboard.

[0026] All structures in this application can be selected in terms of material and length according to actual usage. The accompanying drawings are all schematic structural diagrams, and the specific actual dimensions can be appropriately adjusted.

[0027] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology. Although the embodiments of the present invention have been shown and described, it can be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A real-time detection system and method for corrugated cardboard defects based on AI vision, comprising a conveyor platform and a conveying mechanism arranged along a first direction, wherein the conveying mechanism comprises two transmission rods rotatably symmetrically arranged on the conveyor platform, each of the transmission rods being fixedly provided with a transmission roller and a transmission belt transmitting between the two transmission rollers, and a transmission motor fixedly connected to the transmission rods being mounted on the conveyor platform, characterized in that: Also includes: A high pole is fixedly connected to the top edge of the conveyor platform perpendicular to the first direction, an L-shaped bracket is fixedly provided on the top of the high pole along the second direction of the conveyor platform, a lifting push rod is fixedly provided on the L-shaped bracket perpendicular to the first direction, and a fixing plate is fixedly provided on the bottom end of the lifting push rod; The fixing mechanism includes a pressure cylinder fixed to the bottom of the fixing plate and a positioning column slidably provided along the length direction of the pressure cylinder, one end of the positioning column is fixed with a circular plate slidably connected to the inner wall of the pressure cylinder, a first spring fixedly connected to the circular plate is fixed on the inner wall of the top of the pressure cylinder, and a sliding groove and a pulling component with adjustable position arranged in the sliding groove are provided on the opposite sides of the two pressure cylinders; The shearing mechanism includes a telescopic seat fixedly connected to the bottom of the fixed plate in the longitudinal direction of the pressing cylinder and a shearing knife that can be telescopically arranged in the vertical direction of the telescopic seat. The telescopic seat is respectively provided with sliding holes corresponding to the two directions of the pressing cylinder and a push-pull assembly that can slide in the sliding holes to push and pull the shearing knife; A notch is provided on the conveying platform along the first direction, and a rotating component for transferring the cardboard and corresponding to the shearing mechanism is provided in the notch.

2. The AI vision-based real-time detection system and method for corrugated cardboard defects according to claim 1 is characterized in that: The pulling assembly includes a slider head that slides in the sliding groove and is connected to a pull rope, and the bottom of the fixed plate is rotatably connected to an auxiliary wheel for tensioning the pull rope.

3. The AI vision-based real-time detection system and method for corrugated cardboard defects according to claim 2 is characterized in that: The push-pull assembly includes a pull plate slidably arranged in the sliding hole and connected to one end of the pull rope. A round rod and a second spring fixedly sleeved on the round rod are fixed at the bottom of the pull plate along the length direction of the telescopic seat. A horizontal rod connected to the shear knife is fixed at the bottom end of the round rod along the second direction.

4. The AI vision-based real-time detection system for corrugated cardboard defects and the detection method thereof according to claim 1 are characterized in that: The rotating assembly includes a supporting plate fixed on the inner wall of the notch and a rotating rod rotatably arranged on the supporting plate. The top of the rotating rod is fixed with a rotating plate and a shear plate fixed at one end of the rotating plate and having a collecting groove.

5. The AI vision-based real-time detection system and method for corrugated cardboard defects according to claim 4 is characterized in that: A rotating motor is installed at the bottom of the supporting plate, and an output shaft of the rotating motor is fixedly connected to the rotating rod.

6. The AI vision-based real-time detection system and method for corrugated cardboard defects according to claim 4 is characterized in that: A support plate is fixedly provided on the top of the shear plate corresponding to the second direction, and a second electric push rod and a second push plate for pushing the corrugated cardboard are fixedly provided on the support plate.

7. The AI vision-based real-time detection system for corrugated cardboard defects and the detection method thereof according to claim 1 are characterized in that: The pH value detection tank for detecting the corrugated cardboard is fixedly connected to the conveying platform along the second direction.

8. The AI vision-based real-time detection system and method for corrugated cardboard defects according to claim 1 is characterized in that: An L-shaped seat and an industrial camera for monitoring corrugated cardboard are set up along the height direction of the conveyor platform, and a device for performing AI analysis on the data collected by the industrial camera is fixed on the top of the L-shaped seat.

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