Surface defect detection device for cold storage insulation board production

Abstract

The invention belongs to the technical field of cold storage insulation board production, and particularly relates to a surface defect detection device for cold storage insulation board production, which comprises a workbench, and an insulation board positioning assembly is arranged on the workbench; the insulation board positioning assembly comprises a first positioning plate and a second positioning plate, the lower end of the first positioning plate is slidably connected to the workbench, and the lower end of the second positioning plate is fixedly connected to the workbench; and an image acquisition assembly is also arranged on the workbench. The adhesive type defect marking assembly is utilized, when it is detected that the surface of the heat preservation plate has defects, a section of adhesive tape can be pasted to the surface of the heat preservation plate, when follow-up workers repair the heat preservation plate, the defect position can be rapidly and accurately positioned by observing the position of the adhesive tape, and therefore the repairing efficiency can be improved, and the labor intensity of workers is lowered. And the condition of repair omission is not easy to occur.

Description

Technical Field

[0001] This invention belongs to the field of cold storage insulation board production technology, specifically a surface defect detection device for cold storage insulation board production. Background Technology

[0002] Cold storage insulation panels are the core enclosure material for cold storage facilities. Their core function is to isolate heat transfer between the inside and outside, maintain a low-temperature environment inside the storage facility, and reduce energy consumption. During the production and processing of cold storage insulation panels, defects often appear on their surface due to raw materials, process control, and equipment conditions. These defects affect the quality of the insulation panels. Therefore, it is necessary to inspect the surface defects of the insulation panels before they leave the factory to ensure that each panel reaches its designed lifespan and achieves the expected insulation effect.

[0003] Patent CN211122594U discloses a machine vision-based defect detection device for transparent sheet materials, belonging to the field of intelligent defect detection technology for transparent materials. It addresses the technical problems of false detection, missed detection, and low efficiency in detecting internal and surface defects in transparent sheet materials. The solution comprises a detection system consisting of an industrial camera, an industrial lens, an industrial light source, and a stepper motor. The system is placed in a dark box, with the light source mounted on the side of the conveyor belt and the material being tested. The industrial camera is mounted vertically above the material to capture images. The detection system uses Ethernet communication between a computer and the industrial camera to acquire images. The images are processed using a method of "first binarization for noise reduction, then Gaussian filtering, and finally binarization for enhancement" to obtain contour information. A scale ruler is used for comparison to calculate the defect size and area. This patent saves labor, reduces costs, and improves detection accuracy.

[0004] However, the above technical solutions still have the following shortcomings in practical applications: Detection of surface defects in insulation boards typically relies on a system installed on the production line. This system captures images of the board surface using industrial cameras and uploads them to an image processing system, which automatically identifies defects using image analysis technology. Defective boards identified usually require repair or disposal.

[0005] However, significant pain points exist in the actual manual repair process: for subtle defects, workers struggle to quickly and accurately locate them on a large surface area, leading to low repair efficiency and a high risk of omissions. Although the system records images and location data of all defects, theoretically assisting workers, in real-world batch repair scenarios, workers still need to review numerous image records one by one for comparison and searching. This cumbersome operation is prone to confusion regarding defect information from different boards, severely limiting overall repair efficiency. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a surface defect detection device for the production of cold storage insulation panels.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a surface defect detection device for cold storage insulation board production, including a workbench, wherein an insulation board positioning component is provided on the workbench; The insulation board positioning assembly includes a positioning plate one and a positioning plate two. The lower end of the positioning plate one is slidably connected to the worktable, and the lower end of the positioning plate two is fixedly connected to the worktable. The workbench is also equipped with an image acquisition component; The image acquisition component includes a crossbeam fixedly connected to the upper surface of the workbench, a transverse frame slidably connected to the upper side of the crossbeam, a mounting frame slidably connected to one side of the transverse frame, and a vision camera fixedly connected to one side of the mounting frame. The mounting bracket is also equipped with an adhesive defect marking component; The adhesive defect marking assembly includes a flip block rotatably mounted on the lower end of the mounting frame. Guide rods are slidably connected to both sides of the flip block. A support plate is fixedly connected to one end of each guide rod. Adjustment plates are slidably connected to both sides of the lower end of the support plate. An adsorption roller is fixedly connected to one end of each adjustment plate. Multiple air inlets are provided on one side of the adsorption roller.

[0008] Preferably, a cylinder is fixedly connected to one side of the upper surface of the workbench, and the piston end of the cylinder is fixedly connected to one side of the positioning plate.

[0009] Preferably, one end of the transverse frame is threadedly connected to a threaded rod, both ends of which are rotatably mounted on the crossbeam. One end of the crossbeam is fixedly connected to a motor, the output end of which is fixedly connected to one end of the threaded rod. One end of the mounting bracket is threadedly connected to a threaded rod, both ends of which are rotatably mounted on the transverse frame. One side of the transverse frame is fixedly connected to a motor, the output end of which is fixedly connected to one end of the threaded rod.

[0010] Preferably, a support column is fixedly connected to one side of the upper surface of the workbench, a tape roll is rotatably installed on one side of the upper end of the support column, a lifting plate is slidably connected to one side of the support column, a gripper cylinder is fixedly connected to one side of the upper end of the lifting plate, a fixing block is fixedly connected to one side of the support column, a cylinder three is fixedly connected to one side of the fixing block, and a blade is fixedly connected to the piston end of the cylinder three.

[0011] Preferably, a motor is fixedly connected to one side of the upper end of the support column, the output end of the motor is fixedly connected to the middle of the tape roll, and a cylinder is fixedly connected to one side of the support column, the piston end of the cylinder is fixedly connected to one side of the lifting plate.

[0012] Preferably, a motor four is fixedly connected to one side of the lower end of the mounting bracket, the output end of the motor four is fixedly connected to the middle of the flipping block, a cylinder four is fixedly connected to one side of the flipping block, and the piston end of the cylinder four is fixedly connected to one side of the support plate.

[0013] Preferably, a vacuum pump is fixedly connected to one side of the support plate, the air inlet of the vacuum pump is connected to a rigid pipe, both ends of the rigid pipe are fixedly connected to the support plate, and flexible hoses are connected to both sides of the rigid pipe, and the flexible hoses on both sides are respectively connected to the adsorption rollers on both sides.

[0014] Preferably, it also includes a tear-off auxiliary component; The tearing auxiliary component includes a cylinder five fixedly connected to one side of a support plate. A fixed plate is fixedly connected to the piston end of the cylinder five. A slider is slidably connected to one side of the fixed plate. A liquid discharge roller is fixedly connected to one end of the slider. An electric push rod is fixedly connected to one side of the bottom of the support plate. A hinge block is fixedly connected to the piston end of the electric push rod. Connecting rods are rotatably arranged on both sides of the hinge block. One end of the connecting rod is rotatably connected to one end of an adjusting plate.

[0015] Preferably, an electric actuator two is fixedly connected to one side of the bottom of the fixed plate, and the piston end of the electric actuator two is fixedly connected to one end of the slider.

[0016] Preferably, it also includes a secondary marking component; The secondary marking assembly includes a pigment box fixedly connected to one side of a support plate. The pigment box has multiple storage compartments inside, and each storage compartment contains pigment of a different color. Multiple pigment pumps are fixedly connected to one side of the support plate, and the inlet of each pigment pump is connected to the inner cavity of a storage compartment. The outlet of each pigment pump is connected to an outlet pipe. One end of the outlet pipe passes through a slider and an outlet roller and is fixedly connected to both. A solenoid valve is installed at the outlet of the outlet pipe. The outlet part of the outlet pipe is made of rigid material, and the rest is made of flexible material.

[0017] The beneficial effects of this invention are as follows: 1. The surface defect detection device for cold storage insulation board production described in this invention utilizes an adhesive defect marking component. Whenever a defect is detected on the insulation board surface, a piece of tape can be adhered to it. When workers subsequently repair the insulation board, they can quickly and accurately locate the defect by observing the position of the tape, thereby improving repair efficiency and reducing the likelihood of missed defects. Furthermore, compared to reviewing numerous image records for comparison and defect finding, this method, through physical marking, eliminates the need for searching, is more intuitive, and less prone to confusion. Similarly, compared to using a marking pen for physical marking, this method ensures the marking's durability, preventing it from being erased during transport, and allows for manual removal of the tape after repair work, leaving no marks on the insulation board surface.

[0018] 2. The surface defect detection device for cold storage insulation board production described in this invention utilizes a tearing auxiliary component to create a raised section in the middle of the tape when it is applied to the surface of the insulation board. This provides a point of leverage for the operator, who can then easily tear off the tape by simply pinching the raised section in the middle. This method is quite convenient.

[0019] 3. The surface defect detection device for cold storage insulation board production described in this invention utilizes a secondary marking component. Secondary marking is achieved by spraying pigment onto the surface of the tape. Subsequent operators can quickly identify and statistically analyze the defect types by observing the color on the tape, facilitating the development of reasonable repair plans and improving repair efficiency. Furthermore, because the pigment adheres to the inner adhesive area of ​​the tape, it is not easily rubbed off during transport or drips onto the insulation board surface. Attached Figure Description

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure at the support column; Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a schematic diagram of the three-dimensional structure at the crossbeam; Figure 5 yes Figure 4 Enlarged view of a section at point B in the middle; Figure 6 This is a three-dimensional structural diagram of the mounting bracket. Figure 7 This is a schematic diagram of the three-dimensional structure at the support plate. Figure 8 yes Figure 7 Enlarged view of a section at point C; Figure 9 This is a three-dimensional structural diagram of the support plate from another perspective; Figure 10 This is a schematic diagram of the three-dimensional structure of the liquid outlet roller; Figure 11 This is a schematic diagram of the planar structure showing the connection between the adsorption roller and the hose; Figure 12 This is a schematic diagram of the planar structure showing the connection between the liquid discharge roller and the discharge pipe.

[0022] In the diagram: 1. Workbench; 2. Cylinder 1; 3. Positioning plate 1; 4. Positioning plate 2; 5. Crossbeam; 6. Horizontal shift frame; 7. Support column; 8. Motor 1; 9. Tape roll; 10. Lifting plate; 11. Gripper cylinder; 12. Cylinder 2; 13. Fixing block; 14. Cylinder 3; 15. Blade; 16. Motor 2; 17. Threaded rod 1; 18. Motor 3; 19. Threaded rod 2; 20. Mounting bracket; 21. Vision camera; 22. Liquid discharge roller; 23. Cylinder 4; 24. Guide rod; 25. Tilting block; 26. Motor 4; 27. Support plate; 28. Pigment box; 29. ​​Storage compartment; 30. Cylinder 5; 31. Vacuum pump; 32. Rigid pipe; 33. Flexible hose; 34. Adsorption roller; 35. Fixing plate; 36. Discharge pipe; 37. Pigment pump; 38. Hinge block; 39. Connecting rod; 40. Electric actuator 1; 41. Adjusting plate; 42. Electric actuator 2; 43. Slider; 44. Solenoid valve. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please refer to Figures 1-12 The present invention provides a technical solution: a surface defect detection device for the production of cold storage insulation panels, including a workbench 1, on which an insulation panel positioning component is provided; The insulation board positioning assembly includes a positioning plate 3 and a positioning plate 4. The lower end of the positioning plate 3 is slidably connected to the workbench 1, and the lower end of the positioning plate 4 is fixedly connected to the workbench 1. An image acquisition component is also installed on workbench 1; The image acquisition component includes a crossbeam 5 fixedly connected to the upper surface of the workbench 1, a transverse frame 6 slidably connected to the upper side of the crossbeam 5, a mounting frame 20 slidably connected to one side of the transverse frame 6, and a vision camera 21 fixedly connected to one side of the mounting frame 20. The mounting bracket 20 is also equipped with an adhesive defect marking component; The adhesive defect marking assembly includes a flip block 25 rotatably mounted on the lower end of the mounting frame 20. Guide rods 24 are slidably connected to both sides of the flip block 25. A support plate 27 is fixedly connected to one end of the guide rods 24. Adjustment plates 41 are slidably connected to both sides of the lower end of the support plate 27. An adsorption roller 34 is fixedly connected to one end of the adjustment plate 41. Multiple air inlets are provided on one side of the adsorption roller 34.

[0025] In this embodiment, as Figures 1-7 , Figures 9-11As shown, a cylinder 2 is fixedly connected to one side of the upper surface of the worktable 1, and the piston end of the cylinder 2 is fixedly connected to one side of the positioning plate 3.

[0026] One end of the transverse frame 6 is threadedly connected to a threaded rod 17, both ends of which are rotatably mounted on the crossbeam 5. One end of the crossbeam 5 is fixedly connected to a motor 16, the output end of which is fixedly connected to one end of the threaded rod 17. One end of the mounting bracket 20 is threadedly connected to a threaded rod 19, both ends of which are rotatably mounted on the transverse frame 6. One side of the transverse frame 6 is fixedly connected to a motor 18, the output end of which is fixedly connected to one end of the threaded rod 19.

[0027] A support column 7 is fixedly connected to one side of the upper surface of the workbench 1. A tape roll 9 is rotatably installed on one side of the upper end of the support column 7. A lifting plate 10 is slidably connected to one side of the support column 7. A gripper cylinder 11 is fixedly connected to one side of the upper end of the lifting plate 10. A fixing block 13 is fixedly connected to one side of the support column 7. A cylinder 14 is fixedly connected to one side of the fixing block 13. A blade 15 is fixedly connected to the piston end of the cylinder 14.

[0028] A motor 8 is fixedly connected to one side of the upper end of the support column 7. The output end of the motor 8 is fixedly connected to the middle of the tape roll 9. A cylinder 12 is fixedly connected to one side of the support column 7. The piston end of the cylinder 12 is fixedly connected to one side of the lifting plate 10.

[0029] A motor 26 is fixedly connected to one side of the lower end of the mounting bracket 20. The output end of the motor 26 is fixedly connected to the middle of the flipping block 25. A cylinder 23 is fixedly connected to one side of the flipping block 25. The piston end of the cylinder 23 is fixedly connected to one side of the support plate 27.

[0030] A vacuum pump 31 is fixedly connected to one side of the support plate 27. The air inlet of the vacuum pump 31 is connected to a rigid pipe 32. Both ends of the rigid pipe 32 are fixedly connected to the support plate 27. Both sides of the rigid pipe 32 are connected to flexible hoses 33, and the flexible hoses 33 on both sides are respectively connected to the adsorption rollers 34 on both sides.

[0031] Specifically, in existing technologies, the detection of surface defects in insulation boards typically relies on a system installed on the production line. This system captures images of the board surface using industrial cameras and uploads them to an image processing system, which then uses image analysis technology to automatically identify defects. Defective boards identified usually require repair or disposal.

[0032] However, significant pain points exist in the actual manual repair process: for subtle defects, workers struggle to quickly and accurately locate them on a large surface area, leading to low repair efficiency and a high risk of omissions. Although the system records images and location data of all defects, theoretically assisting workers, in real-world batch repair scenarios, workers still need to review numerous image records one by one for comparison and searching. This cumbersome operation is prone to confusion regarding defect information from different boards, severely limiting overall repair efficiency.

[0033] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Place one side of the insulation board to be tested on the positioning plate 2 4, and then use the cylinder 2 to drive the positioning plate 3 to slide on the worktable 1 until the positioning plate 3 is in contact with the other side of the insulation board. The insulation board can then be fixed by the action of the positioning plate 3 and the positioning plate 2 4.

[0034] Subsequently, by using motor 216 to drive threaded rod 17 to rotate and motor 318 to drive threaded rod 19 to rotate, the positions of mounting bracket 20 and vision camera 21 in the x and y axes are adjusted so that vision camera 21 can capture images of various areas on the surface of insulation board. The captured images are then uploaded to an image analysis system for analysis to determine whether there are defects on the surface of insulation board.

[0035] When a defect is detected on the surface of the insulation board, the control system adjusts the position of the mounting bracket 20 to align it with the support column 7. Initially, one end of the tape on the tape roll 9 is hanging down. The lifting plate 10 is raised by cylinder 2 12, so that the gripper cylinder 11 aligns with the end of the tape and clamps it. Then, motor 1 8 drives the tape roll 9 to rotate, unwinding the tape. At the same time, the gripper cylinder 11 pulls the end of the tape, allowing the tape to be unwound to a certain length. Subsequently, motor 4 26 drives the flipping block 25 to rotate 90 degrees, so that the air inlets of the two adsorption rollers 34 are aligned with the non-adhesive surface of the tape. At the same time, the two adsorption rollers 34 are driven to adhere to the non-adhesive surface of the tape. Then, the vacuum pump 31 is started, which can adsorb the tape under the action of negative pressure. Then, the gripper cylinder 11 releases the lower end of the tape, and cylinder 3 14 drives the blade 15 to move laterally, cutting the tape. At this time, a section of tape is fixed on the two adsorption rollers 34 under the action of negative pressure. Then, drive the flipping block 25 to rotate 90 degrees again, so that the adhesive side of the tape faces the surface of the insulation board. Then adjust the position of the tape so that the tape is aligned with the defect position on the surface of the insulation board. Then, cylinder 4 23 drives the support plate 27 to descend, and the adsorption roller 34 presses the tape onto the surface of the insulation board. Then, turn off the vacuum pump 31 so that the adsorption roller 34 no longer adsorbs the tape, and the tape is stuck to the defect position on the surface of the insulation board.

[0036] Repeat the above steps. Whenever a defect is detected on the surface of the insulation board, a piece of tape can be affixed there. When workers subsequently repair the insulation board, they can quickly and accurately locate the defect by observing the position of the tape, thus improving repair efficiency and reducing the likelihood of overlooking any defects. Furthermore, compared to reviewing numerous image records for comparison and defect finding, this method uses physical markings, eliminating the need for searching and providing a more intuitive and less confusing approach. Similarly, compared to using a marker pen for physical marking, this method ensures the markings are secure and not easily erased during transport, and the tape can be manually removed after the repair work is completed, leaving no marks on the insulation board surface.

[0037] Furthermore, after each tape is cut, the cut end will remain hanging between the fixing block 13 and the blade 15, without affecting the normal gripping function of the gripper cylinder 11.

[0038] In this embodiment, as Figure 7 and Figure 8 As shown, it also includes a tear-off auxiliary component; The tearing auxiliary component includes a cylinder 30 fixedly connected to one side of the support plate 27. A fixed plate 35 is fixedly connected to the piston end of the cylinder 30. A slider 43 is slidably connected to one side of the fixed plate 35. A liquid discharge roller 22 is fixedly connected to one end of the slider 43. An electric push rod 40 is fixedly connected to one side of the bottom of the support plate 27. A hinge block 38 is fixedly connected to the piston end of the electric push rod 40. Connecting rods 39 are rotatably arranged on both sides of the hinge block 38. One end of the connecting rod 39 is rotatably connected to one end of the adjusting plate 41.

[0039] An electric actuator 42 is fixedly connected to one side of the bottom of the fixed plate 35. The piston end of the electric actuator 42 is fixedly connected to one end of the slider 43.

[0040] Specifically, in the above embodiments, although the location of defects on the insulation board surface can be marked by applying tape, it needs to be peeled off along the edge after the repair work is completed. Whether done manually or with tools, the surface of the insulation board may be accidentally scratched, thus affecting the surface quality of the insulation board. Furthermore, when peeling off the tape in this way, the process is quite laborious because the tape lacks an effective point of leverage.

[0041] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Before the tape is applied to the surface of the insulation board, the cylinder 30 can lower the fixing plate 35, causing the dispensing roller 22 to be below the lower surface of the tape. Then, the electric actuator 42 drives the slider 43 to move laterally, moving the dispensing roller 22 below the adhesive surface of the tape. The dispensing roller 22 is then driven to rise a short distance. Because both ends of the tape are fixed to the adsorption roller 34, and the middle of the tape is compressed, the tape will form an arch. At this point, when the tape is applied to the surface of the insulation board, only the two ends of the tape adhere to the surface. After the adsorption roller 34 releases the tape, the electric actuator 40 drives the hinge block 38 to rise. Under the transmission of the connecting rod 39, the two adjusting plates 41 are driven to move closer to each other until the two adsorption rollers 34 abut against each other. Because the middle of the tape is convex and is squeezed by the adsorption rollers 34 on both sides, the middle of the tape will be stuck together by the two adsorption rollers 34. Then, the liquid discharge roller 22 is first moved away from the tape, and then the adsorption rollers 34 are driven away from the tape. At this time, the middle of the tape pasted on the surface of the insulation board is convex, thus providing a point of force for the operator. Subsequently, the operator only needs to pinch the convex part in the middle of the tape to easily tear it off, which is quite convenient.

[0042] In this embodiment, as Figure 8 , Figure 9 , Figure 12 As shown, it also includes a secondary marker component; The secondary marking assembly includes a pigment box 28 fixedly connected to one side of the support plate 27. The pigment box 28 has multiple storage compartments 29 inside, and each storage compartment 29 contains pigment of different colors. Multiple pigment pumps 37 are fixedly connected to one side of the support plate 27, and the inlet end of each pigment pump 37 is connected to the inner cavity of a storage compartment 29. The outlet end of the pigment pump 37 is connected to an outlet pipe 36. One end of the outlet pipe 36 passes through the slider 43 and the liquid discharge roller 22 and is fixedly connected to both. A solenoid valve 44 is provided at the outlet of the outlet pipe 36. The outlet part of the outlet pipe 36 is made of rigid material, and the rest is made of flexible material.

[0043] Specifically, in the above embodiments, although marking can be done by applying tape, since defects are divided into different types, such as scratches, dents, bulges, etc., if the same style of marking is used for different types of marking, it will be difficult for operators to quickly identify the type of defect during subsequent repairs, making it difficult to collect statistics, which is not conducive to formulating a reasonable repair plan and also affects repair efficiency.

[0044] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows: Each color of pigment represents a defect type. When the dispensing roller 22 is in contact with the adhesive surface of the tape, the system activates the corresponding pigment pump 37 based on the defect type. The pigment pump 37 draws an appropriate amount of pigment from the pigment tank 28, and the corresponding solenoid valve 44 opens. The pigment is then sprayed onto the adhesive surface of the tape through the dispensing pipe 36, after which the solenoid valve 44 closes. This allows for secondary marking by spraying pigment onto the tape surface. Subsequent operators can quickly identify and statistically analyze the defect type by observing the color on the tape, facilitating the development of a reasonable repair plan and improving repair efficiency. Furthermore, because the pigment adheres to the inner adhesive area of ​​the tape, it is less likely to be rubbed off during transport or drip onto the insulation board surface.

[0045] Working principle: Place one side of the insulation board to be tested on the positioning plate 4, and then use the cylinder 2 to drive the positioning plate 3 to slide on the worktable 1 until the positioning plate 3 is in contact with the other side of the insulation board. The insulation board can be fixed by the action of the positioning plate 3 and the positioning plate 4.

[0046] Subsequently, by using motor 216 to drive threaded rod 17 to rotate and motor 318 to drive threaded rod 19 to rotate, the positions of mounting bracket 20 and vision camera 21 in the x and y axes are adjusted so that vision camera 21 can capture images of various areas on the surface of insulation board. The captured images are then uploaded to an image analysis system for analysis to determine whether there are defects on the surface of insulation board.

[0047] When a defect is detected on the surface of the insulation board, the control system adjusts the position of the mounting bracket 20 to align it with the support column 7. Initially, one end of the tape on the tape roll 9 is hanging down. The lifting plate 10 is raised by cylinder 2 12, so that the gripper cylinder 11 aligns with the end of the tape and clamps it. Then, motor 1 8 drives the tape roll 9 to rotate, unwinding the tape. At the same time, the gripper cylinder 11 pulls the end of the tape, allowing the tape to be unwound to a certain length. Subsequently, motor 4 26 drives the flipping block 25 to rotate 90 degrees, so that the air inlets of the two adsorption rollers 34 are aligned with the non-adhesive surface of the tape. At the same time, the two adsorption rollers 34 are driven to adhere to the non-adhesive surface of the tape. Then, the vacuum pump 31 is started, which can adsorb the tape under the action of negative pressure. Then, the gripper cylinder 11 releases the lower end of the tape, and cylinder 3 14 drives the blade 15 to move laterally, cutting the tape. At this time, a section of tape is fixed on the two adsorption rollers 34 under the action of negative pressure. Then, drive the flipping block 25 to rotate 90 degrees again, so that the adhesive side of the tape faces the surface of the insulation board. Then adjust the position of the tape so that the tape is aligned with the defect position on the surface of the insulation board. Then, cylinder 4 23 drives the support plate 27 to descend, and the adsorption roller 34 presses the tape onto the surface of the insulation board. Then, turn off the vacuum pump 31 so that the adsorption roller 34 no longer adsorbs the tape, and the tape is stuck to the defect position on the surface of the insulation board.

[0048] Repeat the above steps. Whenever a defect is detected on the surface of the insulation board, a piece of tape can be affixed there. When workers subsequently repair the insulation board, they can quickly and accurately locate the defect by observing the position of the tape, thus improving repair efficiency and reducing the likelihood of overlooking any defects. Furthermore, compared to reviewing numerous image records for comparison and defect finding, this method uses physical markings, eliminating the need for searching and providing a more intuitive and less confusing approach. Similarly, compared to using a marker pen for physical marking, this method ensures the markings are secure and not easily erased during transport, and the tape can be manually removed after the repair work is completed, leaving no marks on the insulation board surface.

[0049] Furthermore, after each tape is cut, the cut end will remain hanging between the fixing block 13 and the blade 15, without affecting the normal gripping function of the gripper cylinder 11.

[0050] Before the tape is applied to the surface of the insulation board, the cylinder 30 can lower the fixing plate 35, causing the dispensing roller 22 to be below the lower surface of the tape. Then, the electric actuator 42 drives the slider 43 to move laterally, moving the dispensing roller 22 below the adhesive surface of the tape. The dispensing roller 22 is then driven to rise a short distance. Because both ends of the tape are fixed to the adsorption roller 34, and the middle of the tape is compressed, the tape will form an arch. At this point, when the tape is applied to the surface of the insulation board, only the two ends of the tape adhere to the surface. After the adsorption roller 34 releases the tape, the electric actuator 40 drives the hinge block 38 to rise. Under the transmission of the connecting rod 39, the two adjusting plates 41 are driven to move closer to each other until the two adsorption rollers 34 abut against each other. Because the middle of the tape is convex and is squeezed by the adsorption rollers 34 on both sides, the middle of the tape will be stuck together by the two adsorption rollers 34. Then, the liquid discharge roller 22 is first moved away from the tape, and then the adsorption rollers 34 are driven away from the tape. At this time, the middle of the tape pasted on the surface of the insulation board is convex, thus providing a point of force for the operator. Subsequently, the operator only needs to pinch the convex part in the middle of the tape to easily tear it off, which is quite convenient.

[0051] Each color of pigment represents a defect type. When the dispensing roller 22 is in contact with the adhesive surface of the tape, the system activates the corresponding pigment pump 37 based on the defect type. The pigment pump 37 draws an appropriate amount of pigment from the pigment tank 28, and the corresponding solenoid valve 44 opens. The pigment is then sprayed onto the adhesive surface of the tape through the dispensing pipe 36, after which the solenoid valve 44 closes. This allows for secondary marking by spraying pigment onto the tape surface. Subsequent operators can quickly identify and statistically analyze the defect type by observing the color on the tape, facilitating the development of a reasonable repair plan and improving repair efficiency. Furthermore, because the pigment adheres to the inner adhesive area of ​​the tape, it is less likely to be rubbed off during transport or drip onto the insulation board surface.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface defect detection device for cold storage insulation board production, comprising a workbench (1), characterized in that: The workbench (1) is equipped with a heat insulation board positioning assembly; The insulation board positioning assembly includes a positioning plate one (3) and a positioning plate two (4). The lower end of the positioning plate one (3) is slidably connected to the workbench (1), and the lower end of the positioning plate two (4) is fixedly connected to the workbench (1). The workbench (1) is also equipped with an image acquisition component; The image acquisition component includes a crossbeam (5) fixedly connected to the upper surface of the workbench (1), a transverse frame (6) slidably connected to the upper side of the crossbeam (5), a mounting frame (20) slidably connected to one side of the transverse frame (6), and a vision camera (21) fixedly connected to one side of the mounting frame (20). The mounting bracket (20) is also provided with an adhesive defect marking component; The adhesive defect marking assembly includes a flip block (25) rotatably mounted on the lower end of the mounting frame (20). Guide rods (24) are slidably connected to both sides of the flip block (25). A support plate (27) is fixedly connected to one end of the guide rod (24). An adjusting plate (41) is slidably connected to both sides of the lower end of the support plate (27). An adsorption roller (34) is fixedly connected to one end of the adjusting plate (41). Multiple air inlets are provided on one side of the adsorption roller (34).

2. The surface defect detection device for cold storage insulation board production according to claim 1, characterized in that: A cylinder (2) is fixedly connected to one side of the upper surface of the workbench (1), and the piston end of the cylinder (2) is fixedly connected to one side of the positioning plate (3).

3. The surface defect detection device for cold storage insulation board production according to claim 1, characterized in that: One end of the transverse frame (6) is threadedly connected to a threaded rod (17), both ends of which are rotatably mounted on the crossbeam (5). One end of the crossbeam (5) is fixedly connected to a motor (16), the output end of which is fixedly connected to one end of the threaded rod (17). One end of the mounting frame (20) is threadedly connected to a threaded rod (19), both ends of which are rotatably mounted on the transverse frame (6). One side of the transverse frame (6) is fixedly connected to a motor (18), the output end of which is fixedly connected to one end of the threaded rod (19).

4. The surface defect detection device for cold storage insulation board production according to claim 1, characterized in that: A support column (7) is fixedly connected to one side of the upper surface of the workbench (1). A tape roll (9) is rotatably installed on one side of the upper end of the support column (7). A lifting plate (10) is slidably connected to one side of the support column (7). A gripper cylinder (11) is fixedly connected to one side of the upper end of the lifting plate (10). A fixing block (13) is fixedly connected to one side of the support column (7). A cylinder three (14) is fixedly connected to one side of the fixing block (13). A blade (15) is fixedly connected to the piston end of the cylinder three (14).

5. The surface defect detection device for cold storage insulation board production according to claim 4, characterized in that: A motor (8) is fixedly connected to one side of the upper end of the support column (7). The output end of the motor (8) is fixedly connected to the middle of the tape roll (9). A cylinder (12) is fixedly connected to one side of the support column (7). The piston end of the cylinder (12) is fixedly connected to one side of the lifting plate (10).

6. The surface defect detection device for cold storage insulation board production according to claim 1, characterized in that: A motor four (26) is fixedly connected to one side of the lower end of the mounting bracket (20). The output end of the motor four (26) is fixedly connected to the middle of the flip block (25). A cylinder four (23) is fixedly connected to one side of the flip block (25). The piston end of the cylinder four (23) is fixedly connected to one side of the support plate (27).

7. The surface defect detection device for cold storage insulation board production according to claim 1, characterized in that: A vacuum pump (31) is fixedly connected to one side of the support plate (27). The air inlet of the vacuum pump (31) is connected to a rigid pipe (32). Both ends of the rigid pipe (32) are fixedly connected to the support plate (27). Both sides of the rigid pipe (32) are connected to flexible hoses (33), and the flexible hoses (33) on both sides are connected to the adsorption rollers (34) on both sides respectively.

8. The surface defect detection device for cold storage insulation board production according to claim 1, characterized in that: This also includes removing auxiliary components; The tearing auxiliary component includes a cylinder five (30) fixedly connected to one side of the support plate (27). A fixed plate (35) is fixedly connected to the piston end of the cylinder five (30). A slider (43) is slidably connected to one side of the fixed plate (35). A liquid discharge roller (22) is fixedly connected to one end of the slider (43). An electric push rod one (40) is fixedly connected to one side of the bottom of the support plate (27). A hinge block (38) is fixedly connected to the piston end of the electric push rod one (40). A connecting rod (39) is rotatably provided on both sides of the hinge block (38). One end of the connecting rod (39) is rotatably connected to one end of the adjusting plate (41).

9. A surface defect detection device for cold storage insulation board production according to claim 8, characterized in that: The bottom side of the fixed plate (35) is fixedly connected to an electric push rod two (42), and the piston end of the electric push rod two (42) is fixedly connected to one end of the slider (43).

10. A surface defect detection device for cold storage insulation board production according to claim 8, characterized in that: It also includes secondary tagging components; The secondary marking component includes a pigment box (28) fixedly connected to one side of the support plate (27). The pigment box (28) has multiple storage compartments (29) inside, and each storage compartment (29) is filled with pigment of different colors. Multiple pigment pumps (37) are fixedly connected to one side of the support plate (27), and the feed end of each pigment pump (37) is connected to the inner cavity of a storage compartment (29). The discharge end of the pigment pump (37) is connected to a discharge pipe (36). One end of the discharge pipe (36) passes through the slider (43) and the liquid discharge roller (22) and is fixedly connected to both. A solenoid valve (44) is provided at the opening of the discharge pipe (36). The opening part of the discharge pipe (36) is made of rigid material, and the rest is made of flexible material.

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