Color difference detection device and method for printing ink processing based on visual detection

Abstract

The invention relates to the technical field of visual inspection, and particularly discloses a visual inspection-based color difference detection device for printing ink processing, which comprises a machine body, a mixing container is fixedly connected in the machine body, a mixing assembly is arranged on the inner side and the upper part of the mixing container together, an inlet pipe is inserted into the top of the machine body, and the color difference detection device further comprises a detection assembly, the mixing container is arranged in the machine body, the detection assembly is arranged on the left side of the mixing container, the detection assembly comprises a camera arranged on the left side in the machine body, the detection assembly further comprises detection paper arranged in the machine body, and the chromatic aberration detection device further comprises an extraction assembly. The printing ink fed last time is mixed with the printing ink in the mixing container, and when the printing ink is fed next time, the situation that the color of the printing ink reaching the detection area is inconsistent with the actually produced printing ink due to residual printing ink can be reduced, so that the printing ink visual detection precision is improved.

Description

Technical Field

[0001] This invention relates to the field of visual inspection technology, and in particular to a color difference detection device and method for ink processing based on visual inspection. Background Technology

[0002] As a key material in printing, ink's color characteristics directly affect the visual effect of printed materials. Different colors and batches of ink may vary in hue, brightness, and saturation. These differences will be directly reflected in the printed materials during the printing process. For example, if the colors of inks from the same batch are inconsistent, it will lead to defects such as color spots and streaks in the printed materials, affecting the overall visual effect. Therefore, during ink production, it is necessary to visually inspect the color difference of the produced ink to ensure that the ink matches the color on the standard color card, thus guaranteeing the quality of the ink. If the colors are inconsistent, pigments need to be added and stirred, and then the color comparison test is carried out again until the error between the color and the standard color card meets the production standard.

[0003] For example, the "Automatic Ink Color Difference Detection Device" with publication number "CN209530765U" mainly controls a certain amount of mixed ink from an ink mixer to flow to the detection platform of the color difference detection unit by opening the detection valve through the control system, and then performs detection to see if there is a color difference.

[0004] In the actual testing process, after the ink is delivered to the testing platform and tested, if the ink does not meet the standard, it needs to be remixed and mixed for the next test. As a result, some ink from the previous test will remain inside the pipes and containers used for delivery. This ink will come into contact with and mix with the ink for the next test, causing the color of the ink reaching the testing area to be inconsistent with the actual ink produced, thus affecting the accuracy of the visual inspection of the ink. Summary of the Invention

[0005] The purpose of this invention is to provide a color difference detection device for ink processing based on visual inspection. During mixing, the container holding the ink is located within the ink in the mixing container. During ink mixing, the previously added ink mixes with the ink inside the mixing container. This reduces the possibility of residual ink causing the ink color reaching the detection area to differ from the actual production ink during the next ink addition, thereby improving the accuracy of ink visual inspection and solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a color difference detection device for ink processing based on visual inspection, comprising a body, a mixing container fixedly connected inside the body, a mixing component disposed on the inner side and top of the mixing container, and an inlet pipe inserted into the top of the body; the color difference detection device further includes: A detection component is disposed on the left side of the mixing container. The detection component includes a camera disposed on the left side inside the body, and a detection paper disposed inside the body. The extraction assembly is located inside the machine body. The extraction assembly includes a crossbeam frame fixedly connected to the top of the machine body. A slide is slidably connected inside the crossbeam frame. A sleeve shaft is rotatably connected to the middle part of the slide. A through shaft is slidably connected inside the sleeve shaft. A spring is fixedly connected between the inside of the sleeve shaft and the through shaft. A sealing frame is rotatably connected to the bottom of the through shaft. A bearing is slidably connected to the outside of the sleeve shaft. A connecting frame is fixedly connected to the outside of the bearing. A lifting frame is fixedly connected to the bottom of the connecting frame. A drainage hole is opened in the middle bottom of the lifting frame. A lifting assembly for controlling the up and down movement of the bearing is arranged at the rear end of the bearing.

[0007] Preferably, a mounting bracket is fixedly connected to the side of the camera away from the detection end, and the outer wall of the mounting bracket is fixedly connected to the inner wall of the machine body. The detection component also includes a mounting frame fixedly connected to the inside of the machine body. Both the front and rear ends of the mounting frame are equipped with take-up shafts, and the two ends of the detection paper are respectively wound and fixed to the two take-up shafts.

[0008] Preferably, a discharge pipe is fixedly inserted into the bottom of the mixing container, and the bottom of the discharge pipe extends out from the bottom middle of the machine body.

[0009] Preferably, the lifting assembly includes a horizontal plate fixedly connected to the inside of the machine body, a limit plate fixedly connected to the front end of the horizontal plate, and inclined sides of the limit plate. The lifting assembly also includes a lifting bar fixedly connected to the rear end of the bearing component, and a groove is provided at the bottom of the lifting bar near the limit plate. A round shaft is rotatably connected inside the groove.

[0010] Preferably, the outside of the crossbeam frame is equipped with a drive assembly for driving the carriage movement, and magnetic blocks are fixedly connected to the bottom of both sides of the limiting plate and the top of the lifting bar.

[0011] Preferably, the mixing component includes a first motor fixedly connected to the top of the machine body, the bottom of the output shaft of the first motor being inserted into the machine body and fixedly connected to a rotating shaft, and the bottom of the rotating shaft being fixedly connected to a stirring rack.

[0012] Preferably, an auxiliary mixing assembly is disposed above the mixing rack. The auxiliary mixing assembly includes a drive wheel fixedly connected to the top of the rotating shaft, a driven wheel fixedly connected to the top of the sleeve shaft, and blades fixedly connected to the bottom of the outer wall of the through shaft. The blades are located inside the lifting frame.

[0013] Preferably, the diameter of the driving wheel is larger than that of the driven wheel, and an anti-slip ring is fixedly connected to the outer wall of the driving wheel to increase the friction between the driving wheel and the driven wheel.

[0014] Preferably, the bottom of the lifting frame is equipped with a scraping component, which includes a limiting frame fixedly connected to the inside of the leakage hole. A moving rod is rotatably connected inside the limiting frame. A sleeve plate is fixedly connected to the bottom of the outer wall of the moving rod. A scraper is slidably connected to the bottom of the sleeve plate. The top of the moving rod is movably connected to the sealing frame. A guide groove is opened on the outer side of the moving rod. A guide slider is fixedly connected to the inner wall of the sealing frame. The guide slider moves inside the guide groove. The top of the guide groove is spiral-shaped, and the bottom of the guide groove is vertical.

[0015] A vision-based method for color difference detection in ink processing includes the following steps: S1. Conveying: The ink is automatically conveyed onto the test paper via the extraction component; S2. Inspection: Visual inspection of the ink is performed by photographing it with a camera.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. During mixing, the container holding the ink is located in the ink of the mixing container. When mixing the ink, the ink added last time is mixed with the ink inside the mixing container. When adding ink next time, it can reduce the situation where residual ink causes the ink color to reach the detection area to be inconsistent with the actual production ink, thereby improving the accuracy of ink visual inspection. 2. The ink inside the lifting frame flows from top to bottom. The bottom of the inlet tube is close to the lifting frame. When the ink inside the lifting frame flows from top to bottom, it is easy for newly added pigment to be drawn into the lifting frame and enter the middle of the ink. This facilitates the pigment and ink to mix fully and improves the ink mixing effect. 3. The scraper automatically scrapes the ink, making it smooth. During inspection, the scraped areas of the ink are photographed for judgment, reducing the impact of ink surface smoothness on light reflection and transmission characteristics, thereby reducing interference with visual inspection and improving the accuracy of visual inspection. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is an overall structural view of the present invention; Figure 2 This is a schematic diagram of the half-section structure of the present invention; Figure 3 This is a side sectional view of the body of the present invention; Figure 4 This is a partial structural diagram of the mounting frame of the present invention; Figure 5 This is a side sectional view of the mounting frame of the present invention; Figure 6 This is a partial structural diagram of the extraction component of the present invention; Figure 7 This is a top view of the crossbeam frame structure of the present invention; Figure 8 This is a side view of the lifting assembly of the present invention. Figure 9 This is a partial structural schematic diagram of the crossbeam frame of the present invention; Figure 10 This is a partial structural schematic diagram of the sleeve shaft of the present invention; Figure 11 This is a schematic diagram of a half-section of the sleeve shaft of the present invention; Figure 12 This is a half-sectional structural diagram of the lifting frame of the present invention; Figure 13 This is a partial structural schematic diagram of the sealing frame of the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Machine body; 2. Mixing container; 3. Mixing assembly; 31. First motor; 32. Rotating shaft; 33. Stirring rack; 4. Detection assembly; 41. Camera; 42. Detection paper; 43. Mounting bracket; 44. Mounting frame; 45. Rewinding shaft; 5. Extraction assembly; 51. Crossbeam frame; 52. Slide carriage; 53. Sleeve shaft; 54. Sealing frame; 55. Bearing components; 56. Connecting frame; 57. Lifting frame; 58. Exhaust hole; 59. Spring 510. Spring; 6. Through shaft; 7. Lifting assembly; 8. Horizontal plate; 9. Limiting plate; 10. Lifting bar; 11. Round shaft; 2. Magnetic block; 22. Auxiliary mixing assembly; 3. Drive wheel; 4. Driven wheel; 53. Blade; 64. Anti-slip ring; 75. Scraping assembly; 86. Limiting frame; 9. Moving rod; 17. Sleeve plate; 18. Scraper; 19. Guide groove; 10. Guide slider; 11. Inlet pipe; 12. Outlet pipe; 13. Drive assembly. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below 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.

[0021] Example 1: Please refer to Figures 1 to 13The present invention provides a technical solution: a color difference detection device for ink processing based on visual inspection, comprising a body 1, a mixing container 2 fixedly connected inside the body 1, a mixing component 3 disposed on the inner side and top of the mixing container 2, an inlet tube 9 inserted into the top of the body 1, the color difference detection device further comprising a detection component 4 disposed on the left side of the mixing container 2, the detection component 4 comprising a camera 41 disposed on the left side inside the body 1, the detection component 4 further comprising a detection paper 42 disposed inside the body 1, and the color difference detection device further comprising an extraction component 5 disposed inside the body 1.

[0022] The mixing component 3 includes a first motor 31 fixedly connected to the top of the body 1. The bottom of the output shaft of the first motor 31 passes through the body 1 and is fixedly connected to a rotating shaft 32. The bottom of the rotating shaft 32 is fixedly connected to a stirring rack 33.

[0023] A discharge pipe 10 is fixedly inserted into the bottom of the mixing container 2. A valve is installed inside the discharge pipe 10, and the bottom of the discharge pipe 10 passes through the middle bottom of the machine body 1.

[0024] Inside the machine body 1, near the test paper 42, there is a lamp to provide a light source for visual inspection. The camera 41 captures the ink on the test paper 42 and converts it into a digital signal through the visual inspection system for comparison, thereby determining whether there is a color difference in the ink. This technology is a mature existing technology and will not be described in detail.

[0025] During testing, inks of different colors to be mixed are added to the mixing container 2 through the inlet pipe 9. Then, the output shaft of the first motor 31 drives the rotating shaft 32 and the stirring rack 33 to rotate, which allows the stirring rack 33 to mix the inks. Then, a certain amount of ink is extracted by the extraction component 5 and transferred to the test paper 42. The color difference of the ink is detected by the camera 41. If the ink color does not meet the standard, a suitable color pigment is added through the inlet pipe 9, and the ink inside the mixing container 2 is mixed again. Then, the ink is extracted again by the extraction component 5 and transferred to the test paper 42, and the test is performed again.

[0026] When the ink color is determined to meet the standard, the prepared ink can be allowed to enter the ink container by opening the valve at the discharge pipe 10 and placing the ink container at the bottom of the discharge pipe 10.

[0027] A cabinet door is installed at the front of the machine body 1. When the cabinet door is closed, the machine body 1 is in a closed state, which can prevent external light sources from interfering with visual inspection and improve the accuracy of visual inspection.

[0028] The extraction component 5 includes a crossbeam frame 51 fixedly connected to the top of the inner side of the body 1. A slide 52 is slidably connected inside the crossbeam frame 51. A sleeve shaft 53 is rotatably connected to the middle part of the slide 52. A through shaft 510 is slidably connected inside the sleeve shaft 53. A spring 59 is fixedly connected between the inside of the sleeve shaft 53 and the through shaft 510. A sealing frame 54 is rotatably connected to the bottom of the through shaft 510. A bearing component 55 is slidably connected to the outside of the sleeve shaft 53. The bearing component 55 is a mature existing technology. Its inner and outer rings can rotate relative to each other. It is a mature existing technology and will not be described in detail. A connecting frame 56 is fixedly connected to the outside of the bearing component 55. A lifting frame 57 is fixedly connected to the bottom of the connecting frame 56. A drain hole 58 is opened in the middle bottom of the lifting frame 57. A lifting component 6 for controlling the up and down movement of the bearing component 55 is arranged at the rear end of the bearing component 55.

[0029] The lifting assembly 6 includes a horizontal plate 61 fixedly connected inside the body 1. A limiting plate 62 is fixedly connected to the front end of the horizontal plate 61. The limiting plate 62 is inclined on both sides. The lifting assembly 6 also includes a lifting bar 63 fixedly connected to the rear end of the bearing component 55. A groove is provided at the bottom of the lifting bar 63 near the limiting plate 62. A round shaft 64 is rotatably connected inside the groove. Magnetic blocks 65 are fixedly connected to the bottom of both sides of the limiting plate 62 and the top of the lifting bar 63.

[0030] A mounting bracket 43 is fixedly connected to the side of the camera 41 away from the detection end. The outer wall of the mounting bracket 43 is fixedly connected to the inner wall of the body 1. The detection assembly 4 also includes a mounting frame 44 fixedly connected inside the body 1. Both the front and rear ends of the mounting frame 44 are equipped with take-up shafts 45. The two ends of the detection paper 42 are respectively wound and fixed to the two take-up shafts 45. One of the take-up shafts 45 is fixed by a motor. The motor drives the take-up shaft 45 to rotate, which can transport the detection paper 42 so as to transport the clean detection paper 42 to the detection area.

[0031] The crossbeam frame 51 is externally equipped with a drive assembly 11 for driving the slide 52 to move. The drive assembly 11 uses a motor to drive the lead screw to rotate, and the lead screw is threadedly connected to the slide 52 at the point where it extends from the crossbeam frame 51. This technology is a mature existing technology and will not be described in detail.

[0032] By adopting the above technical solution, during the mixing stage, the lifting frame 57 is located inside the mixing container 2, and the top of the lifting frame 57 is below the liquid surface of the ink.

[0033] It should be noted that when the lifting frame 57 is inside the mixing container 2, the groove of the lifting bar 63 is located on the right side of the limiting plate 62. With the magnetic blocks 65 fixed on both sides of the bottom of the limiting plate 62 and the top of the lifting bar 63, the round shaft 64 can contact the top right side of the limiting plate 62. At this time, under the elastic force of the spring 59, the through shaft 510 slides to the lowest position that can be slid. At this time, the sealing frame 54 is a certain distance from the bottom of the lifting frame 57, and the sealing frame 54 does not seal the leakage hole 58.

[0034] When the mixed ink needs to be placed at the position of the test paper 42, the motor output shaft on the drive assembly 11 drives the lead screw to rotate, which allows the slide 52 to slide along the crossbeam frame 51. This allows the round shaft 64 to contact the top surface of the limiting plate 62 under the magnetic force of the magnetic block 65 in the initial stage. As the slide 52 moves to the left along with the sleeve shaft 53, through shaft 510, bearing 55, connecting frame 56, lifting frame 57, and lifting bar 63, the lifting bar 63 is inclined to the right side of the limiting plate 62. Under the action of the surface, the bearing 55, connecting frame 56 and lifting frame 57 are gradually raised. When the lifting frame 57 rises and the bottom of the inner side of the lifting frame 57 contacts the bottom of the sealing frame 54, the sealing frame 54 seals the leakage hole 58. At this time, there is still some ink inside the lifting frame 57. Then the slide 52 continues to move, causing the bearing 55, connecting frame 56 and lifting frame 57 to rise. The spring 59 is compressed. Under the elastic force of the spring 59, the round shaft 64 can always be in contact with the top surface of the limiting plate 62.

[0035] This allows the initial state of the slide 52 moving to the left, where the bearing 55, connecting frame 56, and lifting frame 57 rise across the mixing container 2, facilitating the lifting frame 57 to reach the outside of the mixing container 2. As the slide 52 continues to move to the left and approaches the detection paper 42, the spring force of the spring 59 keeps the round shaft 64 in contact with the top surface of the limiting plate 62. Under the action of the inclined surface on the left side of the limiting plate 62, the bearing 55, connecting frame 56, and lifting frame 57 descend during this process. When the through shaft 510 slides to the lowest position it can slide to, the lifting frame 57 begins to separate from the sealing frame 54. At this time, the sealing frame 54 no longer seals the leakage hole 58, allowing the ink to leak out from the leakage hole 58 and flow onto the detection paper 42 for detection.

[0036] After the ink is dispensed, the slide 52 is immediately moved to the right by the drive assembly 11. Under the action of the inclined surface of the limiting plate 62, the bearing 55, connecting frame 56 and lifting frame 57 can cross the top of the mixing container 2 and return to the interior of the mixing container 2, and enter the ink surface. If the ink color is not qualified, new pigment is added for mixing. At this time, the container holding the ink is located in the ink in the mixing container 2. When mixing the ink, the ink dispensed last time is mixed with the ink inside the mixing container 2. When dispensing ink next time, the residual ink can reduce the situation where the ink color reaching the detection area does not match the actual production ink, thereby improving the accuracy of ink visual inspection.

[0037] It should be noted that when the lifting frame 57 is located in the ink inside the mixing container 2, the sealing frame 54 does not seal the leakage hole 58. This allows the interior of the lifting frame 57 to communicate with the interior of the mixing container 2 during ink mixing, facilitating thorough mixing of the ink inside the lifting frame 57 with the ink in the mixing container 2. This further reduces the possibility of residual ink causing the ink color to reach the detection area to differ from the actual production ink, thereby improving the accuracy of visual inspection.

[0038] It should be noted that the groove design can limit the movement of the lifting bar 63 and prevent it from rotating or shifting.

[0039] An auxiliary mixing assembly 7 is arranged above the mixing rack 33. The auxiliary mixing assembly 7 includes a drive wheel 71 fixedly connected to the top of the rotating shaft 32, a driven wheel 72 fixedly connected to the top of the sleeve shaft 53, and a blade 73 fixedly connected to the bottom of the outer wall of the through shaft 510. The blade 73 is located inside the lifting frame 57. The diameter of the drive wheel 71 is larger than the diameter of the driven wheel 72. An anti-slip ring 74 is fixedly connected to the outer wall of the drive wheel 71 to increase the friction between the drive wheel 71 and the driven wheel 72.

[0040] It should be noted that when the carriage 52 moves to the right position, it can ensure that the anti-slip ring 74 on the outer side of the driving wheel 71 and the driven wheel 72 make sufficient contact, thus ensuring the friction effect between the driving wheel 71 and the anti-slip ring 74.

[0041] By adopting the above technical solution, when the output shaft of the first motor 31 drives the rotating shaft 32 and the stirring rack 33 to rotate for mixing, the driving wheel 71 can rotate. Under the action of the friction between the driven wheel 72 and the driving wheel 71, the driven wheel 72 can rotate accordingly. This allows the sleeve shaft 53 to drive the through shaft 510 to rotate, thereby allowing the blade 73 to rotate. This design allows the ink inside the lifting frame 57 to flow from top to bottom. The bottom of the inlet pipe 9 is close to the lifting frame 57. When the ink inside the lifting frame 57 flows from top to bottom, it is easy for newly added pigments to be sucked into the lifting frame 57 and enter the middle position of the ink, which facilitates the full mixing of pigments and ink and improves the ink mixing effect.

[0042] It should be noted that during stirring, the ink flows from top to bottom, which facilitates the ink to wash the inside of the lifting frame 57. This ensures that after the ink mixing is complete, the ink inside the lifting frame 57 and the ink in the mixing container 2 are mixed evenly, further guaranteeing that the ink inside the lifting frame 57 and the ink in the mixing container 2 are fully mixed, thereby further improving the accuracy of visual inspection.

[0043] It should be noted that because the diameter of the drive wheel 71 is larger than that of the drive wheel 72, the drive wheel 71 can rotate more times when it rotates once, ensuring the effect of ink flow inside the lifting frame 57, thereby further improving the mixing effect of ink inside the lifting frame 57 and ink in the mixing container 2.

[0044] Example 2: The technical solution of this example differs from that of Example 1 in that: Figures 1 to 4 and Figures 10 to 13 The bottom of the lifting frame 57 is equipped with a scraping component 8. The scraping component 8 includes a limiting frame 81 fixedly connected inside the leakage hole 58. A moving rod 82 is rotatably connected inside the limiting frame 81. A sleeve plate 83 is fixedly connected to the bottom of the outer wall of the moving rod 82. A scraper 84 is slidably connected to the bottom of the sleeve plate 83. The top of the moving rod 82 is movably connected to the sealing frame 54. A guide groove 85 is opened on the outer side of the moving rod 82. A guide slider 86 is fixedly connected to the inner wall of the sealing frame 54. The guide slider 86 moves inside the guide groove 85. The top of the guide groove 85 is spiral-shaped, and the bottom of the guide groove 85 is in a vertical position. The sealing frame 54 is slidably connected to the inside of the lifting frame 57 to ensure that the sealing frame 54 does not rotate with the through shaft 510.

[0045] By adopting the above technical solution, when the lifting frame 57 moves to the position above the detection paper 42, the lifting frame 57 begins to separate from the sealing frame 54, and the sealing frame 54 no longer seals the leakage hole 58. After the ink leaks out, due to the relative movement between the sealing frame 54 and the moving rod 82, the guide slider 86 begins to slide inside the guide groove 85. Since the bottom position of the guide groove 85 is vertical, the moving rod 82 does not rotate in the initial state. When the guide slider 86 begins to reach the spiral position at the top of the guide groove 85... At this time, the bottom of the scraper 84 begins to contact the detection paper 42. As the frame 57 is lifted, it begins to separate from the sealing frame 54. The guide slider 86 enters the spiral position of the guide groove 85. At this time, the moving rod 82 can rotate the sleeve 83 and the scraper 84. During this process, the scraper 84 automatically scrapes the ink, which can make the ink flat. During the detection, the position where the ink is scraped is photographed and judged, reducing the impact of the flatness of the ink surface on the light reflection and transmission characteristics, thereby reducing the interference with visual detection and improving the accuracy of visual detection.

[0046] It should be noted that the scraper 84 and the sleeve 83 can slide together. The scraper 84 has a large weight, so the bottom of the scraper 84 always adheres to the detection paper 42 when scraping, ensuring the smoothing effect.

[0047] It should be noted that a pad is provided at the bottom of the area where the test paper 42 is scratched.

[0048] A vision-based method for color difference detection in ink processing includes the following steps: S1. Conveying and driving the carriage 52, the carriage 52 slides along the crossbeam 51. Under the action of the inclined surface on the right side of the limiting plate 62, the lifting bar 63 gradually lifts the bearing 55, connecting frame 56, and lifting frame 57. When the lifting frame 57 rises and its inner bottom contacts the bottom of the sealing frame 54, the sealing frame 54 seals the leakage hole 58. At this time, some ink is still inside the lifting frame 57. Subsequently, the carriage 52 continues to move, causing the bearing 55, connecting frame 56, and lifting frame 57 to rise. Thus, in the initial state of the carriage 52 moving to the left, the bearing 55, connecting frame 56, and lifting frame 57 are all lifted. The lifting frame 57 rises across the mixing container 2, making it easier to lift the frame 57 to the outside of the mixing container 2. When the slide 52 continues to move to the left and approaches the detection paper 42, the spring force of the spring 59 allows the round shaft 64 to remain in contact with the top surface of the limiting plate 62. Under the action of the inclined surface on the left side of the limiting plate 62, the bearing 55, the connecting frame 56 and the lifting frame 57 descend during this process. When the through shaft 510 slides to the lowest position it can slide to, the lifting frame 57 begins to separate from the sealing frame 54. At this time, the sealing frame 54 no longer seals the leakage hole 58, allowing the ink to leak out from the leakage hole 58. S2. Detection: Camera 41 captures the ink on the test paper 42 and converts it into a digital signal through a visual inspection system for comparison, thereby determining whether there is a color difference in the ink.

[0049] Working principle: After the ink is dispensed, the drive assembly 11 immediately moves the slide 52 to the right. Under the action of the inclined surface of the limiting plate 62, the bearing 55, connecting frame 56 and lifting frame 57 can cross the top of the mixing container 2 and return to the interior of the mixing container 2, and enter the ink surface. If the ink color is not qualified, new pigment is added for mixing. At this time, the container holding the ink is located in the ink in the mixing container 2. When mixing the ink, the ink dispensed last time is mixed with the ink in the mixing container 2. When dispensing ink next time, it can reduce the situation where residual ink causes the ink color to reach the detection area to be inconsistent with the actual production ink, thereby improving the accuracy of ink visual inspection.

[0050] When the output shaft of the first motor 31 drives the rotating shaft 32 and the stirring frame 33 to rotate for mixing, the driving wheel 71 can rotate. Under the action of friction between the driven wheel 72 and the driving wheel 71, the driven wheel 72 can rotate accordingly. This causes the sleeve shaft 53 to rotate with the through shaft 510, thereby causing the blade 73 to rotate. This design allows the ink inside the lifting frame 57 to flow from top to bottom. The bottom of the inlet pipe 9 is close to the lifting frame 57. When the ink inside the lifting frame 57 flows from top to bottom, it is easy for newly added pigment to be sucked into the lifting frame 57 and enter the middle position of the ink, which facilitates the pigment and ink to mix fully and improves the ink mixing effect.

[0051] When the lifting frame 57 moves to the position above the detection paper 42, the lifting frame 57 begins to separate from the sealing frame 54. The sealing frame 54 no longer seals the leakage hole 58. After the ink leaks out, due to the relative movement between the sealing frame 54 and the moving rod 82, the guide slider 86 begins to slide inside the guide groove 85. Since the bottom of the guide groove 85 is in a vertical state, the moving rod 82 does not rotate initially. When the guide slider 86 reaches the spiral position at the top of the guide groove 85, the bottom of the scraper 84 begins to contact the detection paper 42. As the lifting frame 57 begins to separate from the sealing frame 54, the guide slider 86 enters the spiral position of the guide groove 85. At this time, the moving rod 82 can rotate with the sleeve 83 and the scraper 84. During this process, the scraper 84 automatically scrapes the ink, making the ink flat. During detection, the position where the ink is scraped is photographed and judged, reducing the impact of the ink surface flatness on the light reflection and transmission characteristics, thereby reducing interference with visual detection and improving the accuracy of visual detection.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A color difference detection device for ink processing based on visual inspection, comprising a body (1), a mixing container (2) fixedly connected inside the body (1), a mixing component (3) disposed on the inner side and top of the mixing container (2), and an inlet pipe (9) inserted into the top of the body (1), characterized in that, The color difference detection device also includes: The detection component (4) is disposed on the left side of the mixing container (2). The detection component (4) includes a camera (41) disposed on the left side inside the body (1) and a detection paper (42) disposed inside the body (1). The extraction component (5) is located inside the body (1). The extraction component (5) includes a crossbeam frame (51) fixedly connected to the top of the inner side of the body (1). A slide (52) is slidably connected inside the crossbeam frame (51). A sleeve shaft (53) is rotatably connected to the middle part of the slide (52). A through shaft (510) is slidably connected inside the sleeve shaft (53). A spring (59) is fixedly connected between the inside of the sleeve shaft (53) and the through shaft (510). A sealing frame (54) is rotatably connected to the bottom of the through shaft (510). A bearing component (55) is slidably connected to the outside of the sleeve shaft (53). A connecting frame (56) is fixedly connected to the outside of the bearing component (55). A lifting frame (57) is fixedly connected to the bottom of the connecting frame (56). A drain hole (58) is opened in the middle bottom of the lifting frame (57). A lifting component (6) for controlling the up and down movement of the bearing component (55) is arranged at the rear end of the bearing component (55).

2. The color difference detection device for ink processing based on visual inspection according to claim 1, characterized in that: A mounting bracket (43) is fixedly connected to the side of the camera (41) away from the detection end. The outer wall of the mounting bracket (43) is fixedly connected to the inner wall of the body (1). The detection component (4) also includes a mounting frame (44) fixedly connected inside the body (1). Both the front and rear ends of the mounting frame (44) are equipped with take-up shafts (45). The two ends of the detection paper (42) are respectively wound and fixed to the two take-up shafts (45).

3. The color difference detection device for ink processing based on visual inspection according to claim 2, characterized in that: The bottom of the mixing container (2) is fixedly connected to a discharge pipe (10), and the bottom of the discharge pipe (10) extends out from the bottom of the middle of the body (1).

4. The color difference detection device for ink processing based on visual inspection according to claim 3, characterized in that: The lifting assembly (6) includes a horizontal plate (61) fixedly connected inside the body (1). A limit plate (62) is fixedly connected to the front end of the horizontal plate (61). The limit plate (62) is inclined on both sides. The lifting assembly (6) also includes a lifting bar (63) fixedly connected to the rear end of the bearing component (55). A groove is provided at the bottom of the lifting bar (63) near the limit plate (62). A round shaft (64) is rotatably connected inside the groove.

5. A color difference detection device for ink processing based on visual inspection according to claim 4, characterized in that: The crossbeam frame (51) is externally equipped with a drive assembly (11) for driving the slide (52) to move, and magnetic blocks (65) are fixedly connected to the bottom of both sides of the limit plate (62) and the top of the lifting bar (63).

6. The color difference detection device for ink processing based on visual inspection according to claim 5, characterized in that: The mixing component (3) includes a first motor (31) fixedly connected to the top of the body (1), the bottom of the output shaft of the first motor (31) is inserted into the body (1) and fixedly connected to a rotating shaft (32), and the bottom of the rotating shaft (32) is fixedly connected to a stirring rack (33).

7. A color difference detection device for ink processing based on visual inspection according to claim 6, characterized in that: An auxiliary mixing assembly (7) is arranged above the mixing rack (33). The auxiliary mixing assembly (7) includes a drive wheel (71) fixedly connected to the top of the rotating shaft (32), a driven wheel (72) fixedly connected to the top of the sleeve shaft (53), and a blade (73) fixedly connected to the bottom of the outer wall of the through shaft (510). The blade (73) is located inside the lifting frame (57).

8. A color difference detection device for ink processing based on visual inspection according to claim 7, characterized in that: The diameter of the driving wheel (71) is larger than that of the driven wheel (72), and the outer wall of the driving wheel (71) is fixedly connected with an anti-slip ring (74) to increase the friction between the driving wheel (71) and the driven wheel (72).

9. A color difference detection device for ink processing based on visual inspection according to claim 8, characterized in that: The bottom of the lifting frame (57) is equipped with a scraping component (8). The scraping component (8) includes a limiting frame (81) fixedly connected inside the leakage hole (58). The limiting frame (81) is rotatably connected to a moving rod (82). The bottom of the outer wall of the moving rod (82) is fixedly connected to a sleeve plate (83). The bottom of the sleeve plate (83) is slidably connected to a scraper (84). The top of the moving rod (82) is movably connected to the sealing frame (54). A guide groove (85) is opened on the outer side of the moving rod (82). A guide slider (86) is fixedly connected to the inner wall of the sealing frame (54). The guide slider (86) moves inside the guide groove (85). The top of the guide groove (85) is spiral, and the bottom of the guide groove (85) is vertical.

10. A color difference detection method for ink processing based on visual inspection, characterized in that: This method is applicable to the color difference detection device for ink processing based on visual inspection as described in any one of claims 1-9, and includes the following steps: S1, conveying: the ink is automatically conveyed to the test paper (42) by the extraction component (5); S2, Inspection: Visual inspection of the ink is performed by taking pictures of it with a camera (41).

Images