A label print quality optical detection device

Abstract

The application relates to the technical field of printing quality, and discloses a label printing quality optical detection device, which comprises a workbench, the top of the workbench is fixedly provided with an inclined detection table, the top of the inclined detection table is provided with a detection cylinder, the top of the inclined detection table is provided with an optical detection head, the two sides of the inclined detection table are provided with hinged seats one, the lower sides of the two hinged seats one are provided with a moving assembly, one side of the two hinged seats one is provided with a discharging assembly, when the hinged seat one and the optical detection head are driven to move downward along the inclined surface of the inclined detection table through the moving assembly, the detection cylinder will roll along the inclined surface of the inclined detection table under the action of gravity, the label printed on the outer wall of the detection cylinder can be detected by the optical detection head at all times, the label can be exposed to the optical detection head in all directions and without any dead angle, the situation of missing detection or mis-detection caused by improper label position or shielding is reduced, and the detection accuracy is improved.

Description

Technical Field

[0001] This invention belongs to the field of printing quality inspection technology: specifically, it relates to an optical inspection device for label printing quality. Background Technology

[0002] An optical inspection device for label printing quality is a specialized device for detecting the quality of label printing. It primarily uses optical reading technology to accurately inspect label printing quality. The basic principle is to use the device's built-in light source and lens to read information from the label, then compare the read information with a set standard to determine whether the label printing quality meets requirements. This process mainly relies on optical imaging technology and image analysis technology.

[0003] Existing technologies also offer some solutions: for example, a Chinese patent announcement with publication number CN219266228U discloses a label printing quality inspection device, including a conveyor, an inspection mechanism, and a positioning component; the conveyor is equipped with a positioning component and an inspection mechanism, and through the coordinated use of the above devices, the product to be tested is brought into contact with the sliding plate, which then pushes the sliding plate to move. During the movement of the sliding plate, it can also move vertically, allowing the product to be tested to pass through, and under the action of the correction plate, it is brought together to ensure that the upper surface of the product to be tested is within the inspection range of the inspection mechanism, thereby improving the inspection rate.

[0004] When performing label quality inspection on the outer wall of cylindrical products using existing equipment, it is necessary to ensure that the label on the outer wall of the product is aligned with the inspection head before transporting the cylindrical product directly under the inspection device. Due to the shape characteristics of cylindrical products, the label may be deviated or skewed during application, making it difficult to accurately align with the inspection head when transported under the inspection device. This results in the inspection head being unable to capture a complete label image, thus affecting the accuracy of the inspection results.

[0005] Therefore, the present invention provides an optical inspection device for label printing quality. Summary of the Invention

[0006] To overcome the shortcomings of the prior art: to solve at least one technical problem raised in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: The label printing quality optical inspection device of the present invention includes a worktable, an inclined inspection table fixedly installed on the top of the worktable, an inspection cylinder arranged above the inclined inspection table, an optical inspection head arranged directly above the inclined inspection table, and hinge seats one on both sides of the inclined inspection table. The outer walls of the shafts of the two hinge seats one are fixedly connected with hinge members, and one side of the two hinge members is attached to the outer wall of the inspection cylinder. A fixing frame is fixedly connected to the top of the optical inspection head, and the two ends of the fixing frame are respectively fixedly connected to one side of the two hinge seats one. A moving component is arranged below the two hinge seats one, which is used to drive the two hinge seats one to move along the inclined surface of the inclined inspection table. A feeding component is arranged on one side of the two hinge seats one, which is used to transport the next inspection cylinder to be inspected to the upper surface of the inclined inspection table.

[0008] Preferably, the moving assembly includes two tilting slides, the tilting slides having the same tilting degree as the tilting surface of the tilting detection table, inner sliders slidably connected to the inner walls of both tilting slides, threaded conveying rods rotatably connected to the inner walls of both tilting slides, the outer walls of the two threaded conveying rods being threadedly connected to the inner walls of the two inner sliders respectively, a transmission ring being fixedly connected to one end of each of the two threaded conveying rods, a transmission belt being driven between the outer walls of the two transmission rings, a motor being fixedly connected to one side of one of the threaded conveying rods, the motor being fixedly installed on the top of the worktable, connecting blocks being fixedly connected to the tops of both inner sliders, and one side of each of the two connecting blocks being fixedly connected to one side of each of the two hinge seats.

[0009] Preferably, the bottom of the shafts of the two hinge seats is fixedly connected to a rotating connecting rod, and the bottom of the two rotating connecting rods is fixedly connected to an elliptical block. The two sides of the inclined detection table are fixedly connected to inclined fixing plates. The inclined fixing plates have the same inclination as the inclined surface of the inclined detection table. The inner wall of the top surface of the inclined fixing plate is provided with a sliding groove 1 and a sliding groove 2. The minor axis of the elliptical block is the same as the width of the sliding groove 1, and the major axis of the elliptical block is the same as the width of the sliding groove 2. A rotating component is provided on one side of the gear, and the rotating component causes the rotating connecting rod to rotate.

[0010] Preferably, the rotating assembly includes two rack plates, which are fixedly installed on one side of two inclined fixed plates. The rack plates are located directly above the slide groove two. Gears are fixedly connected to the outer walls of the two rotating connecting rods. The teeth of the gears mesh with the teeth of the rack plates. The number of teeth on the rack plates is half the number of teeth on the gears.

[0011] Preferably, a support plate is fixedly connected to one side of each of the two hinge seats, and a return spring is fixedly connected between one side of each of the two support plates and one side of each of the two hinge pieces. A damping rod is provided inside the return spring, and the two ends of the damping rod are fixedly connected to one side of the support plate and one side of the hinge piece, respectively.

[0012] Preferably, the feeding assembly includes a discharge bin, an inlet bin is fixedly connected to the top of the discharge bin, the outlet of the discharge bin is aligned with the top of the inclined testing platform, a test cylinder is provided on the inner wall of the discharge bin, a baffle plate is attached to one side of the test cylinder, a rotating shaft is fixedly connected to the bottom outer wall of the baffle plate, a bottom groove is provided on the bottom inner wall of the discharge bin, the two ends of the rotating shaft are rotatably connected to the inner wall of the bottom groove, a connecting rotating plate is fixedly connected to the outer wall of the rotating shaft, and a pushing and rotating assembly is provided below the connecting rotating plate.

[0013] Preferably, when the test cylinder above the inclined testing platform is being tested, the next test cylinder is placed into the feed hopper. The test cylinder enters the interior of the discharge hopper and fits against one side of the baffle plate. When the two hinge seats move upward and reset, they will drive the push-rotation assembly to move. The push-rotation assembly will push the connecting rotating plate, causing the connecting rotating plate to rotate around the rotation axis. When the connecting rotating plate rotates, the baffle plate will also rotate. When the baffle plate rotates to the inner wall of the bottom groove, the test cylinder is no longer blocked by the baffle plate and slides from the outlet of the discharge hopper onto the inclined testing platform to prepare for testing.

[0014] Preferably, a second return spring is fixedly connected between the top surface of the movable plate and the bottom surface of the hinge plate. The second return spring has a second damping rod inside, and the two ends of the second damping rod are fixedly connected to the top surface of the movable plate and the bottom surface of the hinge plate, respectively.

[0015] Preferably, multiple return springs are fixedly connected to the other side of the connecting plate, and the other end of the multiple return springs is fixedly connected to the bottom of the discharge hopper. Each of the multiple return springs has a damping rod inside, and the two ends of the damping rod are fixedly connected to the other side of the connecting plate and the back of the discharge hopper, respectively.

[0016] Preferably, an electrically operated opening and closing plate is provided on one side of the inclined testing table, and a placement platform is provided on one side of the electrically operated opening and closing plate. The placement platform is fixedly installed on the top of the workbench, and a collection box is provided on the top of the workbench, with the collection box located directly below the electrically operated opening and closing plate.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The label printing quality optical inspection device of the present invention, when the lowering component drives the hinge seat and the optical inspection head to move down along the inclined surface of the inclined inspection table, the inspection cylinder will roll along the inclined surface of the inclined inspection table under the action of gravity, so that the labels printed on the outer wall of the inspection cylinder will always be detected by the optical inspection head. The labels can be exposed to the optical inspection head from all directions without blind spots, reducing the missed or false detection caused by improper label position or obstruction, and improving the accuracy of inspection.

[0019] 2. The label printing quality optical inspection device of the present invention, when the inspection cylinder above the inclined inspection table is being inspected, places the next cylinder to be tested into the feed bin. The cylinder to be tested enters the interior of the discharge bin and fits against one side of the baffle plate. When the two hinge seats move upward and reset, they drive the push-rotating component to move. The push-rotating component pushes the connecting rotating plate, causing the connecting rotating plate to rotate around the rotating shaft as the central axis. When the connecting rotating plate rotates, the baffle plate also rotates. When the baffle plate rotates to the inner wall of the bottom groove, the cylinder to be tested is no longer blocked by the baffle plate and slides from the outlet of the discharge bin onto the inclined inspection table for inspection. The operation is simple, and automatic feeding occurs when the two hinge seats reset, reducing manual intervention, reducing product waiting time, and improving the overall operating efficiency of the production line. Attached Figure Description

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

[0021] Figure 1 This is a perspective view of the entire invention;

[0022] Figure 2 This is a schematic diagram of the structure at the tilting detection stage in this invention;

[0023] Figure 3 This is a schematic diagram of the rack plate structure in this invention;

[0024] Figure 4 This is a schematic diagram of the structure of the optical detection head in this invention;

[0025] Figure 5 This is a schematic diagram of the structure at the inclined fixing plate in this invention;

[0026] Figure 6 This is a schematic diagram of the inclined slide in this invention;

[0027] Figure 7 This is a schematic diagram of the three structures of the reset spring in this invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of the discharge hopper in this invention;

[0029] Figure 9 This is a schematic diagram of the structure at the connecting plate in this invention;

[0030] Figure 10 This is a schematic diagram of the hinge plate structure in this invention;

[0031] Figure 11 This is a schematic diagram of the structure at the opening and closing plate in this invention;

[0032] In the diagram: 1. Workbench; 2. Inclined inspection table; 3. Inspection cylinder; 4. Optical inspection head; 5. Hinge; 6. Hinge seat one; 7. Fixing frame; 8. Connecting block; 9. Inclined slide; 10. Inner slider; 11. Threaded conveyor rod; 12. Motor; 13. Transmission ring; 14. Transmission belt; 15. Rotating connecting rod; 16. Elliptical block; 17. Inclined fixing plate; 18. Slide one; 19. Gear; 20. Slide two; 21. Rack plate; 22. Receiving plate; 3. Damping rod one; 24. Return spring one; 25. Discharge bin; 26. Feed bin; 27. Test cylinder; 28. Baffle plate; 29. ​​Bottom groove; 30. Connecting rotating plate; 31. Rotating shaft; 32. Moving plate; 33. Hinge seat two; 34. Hinge plate; 35. Limiting rod; 36. Damping rod two; 37. Return spring two; 38. Connecting frame; 39. Damping rod three; 40. Return spring three; 41. Electric opening and closing plate; 42. Collection box; 43. Placement platform. Detailed Implementation

[0033] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0034] like Figures 1 to 11 As shown, the present invention provides a technical solution: an optical inspection device for label printing quality, including a worktable 1, an inclined inspection table 2 fixedly installed on the top of the worktable 1, an inspection cylinder 3 arranged above the inclined inspection table 2, an optical inspection head 4 arranged directly above the inclined inspection table 2, hinge seats 6 arranged on both sides of the inclined inspection table 2, hinge members 5 fixedly connected to the outer walls of the shafts of the two hinge seats 6, one side of the two hinge members 5 being attached to the outer wall of the inspection cylinder 3, a fixing frame 7 fixedly connected to the top of the optical inspection head 4, the two ends of the fixing frame 7 being fixedly connected to one side of the two hinge seats 6 respectively, a moving component arranged below the two hinge seats 6, the moving component being used to drive the two hinge seats 6 to move along the inclined surface of the inclined inspection table 2, and a feeding component arranged on one side of the two hinge seats 6, the feeding component being used to transport the next inspection cylinder 3 to be inspected to the upper surface of the inclined inspection table 2.

[0035] During operation: In the initial state, the inspection cylinder 3 to be inspected is located above the top of the inclined inspection table 2, and the angle of the inclined surface of the inspection table 2 is 30 degrees. At this time, the optical inspection head 4 is exactly above the inspection cylinder 3. When the inspection cylinder 3 needs to be inspected, the moving component is activated. The moving component will cause the hinge seat 6 and the hinge 5 to move downward along the inclined surface of the inclined inspection table 2. During the downward movement, since the inspection cylinder 3 is placed on the inclined surface of the inclined inspection table 2, under the action of gravity, the inspection cylinder 3 will always be in contact with one side of the two hinges 5. The cylinder moves along the inclined surface of the detection cylinder 3. Due to the shape characteristics of the detection cylinder 3, it rotates as it moves along the inclined surface. Therefore, when the moving component drives the hinge seat 6 downwards, the hinge 5 rolls along the inclined surface. The hinge seat 6, through the fixing frame 7, drives the optical detection head 4 to move, ensuring that the optical detection head 4 is always aligned directly above the detection cylinder 3. As the hinge seat 6 rolls, the label on the outer wall will always be facing directly upwards at some point, allowing it to be scanned by the optical detection head 4 and completing the detection. As the hinge seat 6 is about to descend to the bottom of the inclined detection table 2, the two hinge members 5 will rotate, causing the two detection cylinders 3 to slide out and leave the top of the inclined detection table 2 for collection. At this time, the two hinge seats 6 are moved upward and reset by the downward moving component. Just before returning to the initial position, the two hinge seats 6 will be transported to the top position above the inclined detection table 2 by the unloading component, so as to facilitate the next inspection. Through the above embodiment, the downward moving component drives the hinge seat 6 and the optical detection head 4 along the inclined surface of the inclined detection table 2. During the downward movement, the detection cylinder 3 rolls along the inclined surface of the tilted detection table 2 under the action of gravity, ensuring that the labels printed on the outer wall of the detection cylinder 3 are always detected by the optical detection head 4. The labels are exposed to the optical detection head 4 from all directions without blind spots, reducing missed or false detections caused by improper label position or obstruction, thus improving the accuracy of detection. Furthermore, detection can be started immediately upon activating the downward movement component, making operation simple. Automatic feeding occurs when the two hinge seats 6 are reset, reducing manual intervention, product waiting time, and improving the overall operating efficiency of the production line.

[0036] It should be noted that in actual use, the frictional relationship between the surfaces of the inclined testing platform 2 and the testing cylinder 3 needs to be considered. It is necessary to ensure that the rolling friction is usually much smaller than the sliding friction so that the testing cylinder 3 rolls on the inclined testing platform 2.

[0037] like Figures 2 to 3As shown, the moving assembly includes two tilting slides 9, which have the same tilt angle as the tilting surface of the tilt detection table 2. Inner sliders 10 are slidably connected to the inner walls of both tilting slides 9, and threaded conveying rods 11 are rotatably connected to the inner walls of both tilting slides 9. The outer walls of the two threaded conveying rods 11 are threadedly connected to the inner walls of the two inner sliders 10, respectively. A transmission ring 13 is fixedly connected to one end of each threaded conveying rod 11, and a transmission belt 14 is connected between the outer walls of the two transmission rings 13. A motor 12 is fixedly connected to one side of one of the threaded conveying rods 11, and the motor 12 is fixedly mounted on the top of the worktable 1. Connecting blocks 8 are fixedly connected to the tops of both inner sliders 10, and one side of each connecting block 8 is fixedly connected to one side of each of the two hinge seats 6.

[0038] During operation: When testing is required, the motor 12 is started, and its output shaft drives the threaded conveyor rod 11 connected to it to rotate. When one of the threaded conveyor rods 11 rotates, it drives the other threaded conveyor rod 11 to rotate through the transmission ring 13 and the transmission belt 14. When the threaded conveyor rod 11 rotates, the inner slider 10 slides downward on the inner wall of the inclined slide 9. During the sliding of the inner slider 10, it drives the hinge seat 6 and the optical detection head 4 to slide through the connecting block 8. Since the inclined slide 9 and the inclined surface of the inclined testing table 2 have the same degree of inclination, the hinge seat 6 and the optical detection head 4 can slide along the inclined surface of the inclined testing table 2. At this time, when the testing cylinder 3 rolls along the inclined surface, the optical detection head 4 can always be aligned with the top of the testing cylinder 3.

[0039] like Figures 4 to 5 As shown, rotating connecting rods 15 are fixedly connected to the bottom of the shafts of the two hinge seats 16, and elliptical blocks 16 are fixedly connected to the bottom of the two rotating connecting rods 15. Inclined fixing plates 17 are fixedly connected to both sides of the inclined detection table 2. The inclined fixing plates 17 have the same inclination as the inclined surface of the inclined detection table 2. The inner wall of the top surface of the inclined fixing plate 17 is provided with a sliding groove 18 and a sliding groove 20. The short axis of the elliptical block 16 is the same as the width of the sliding groove 18, and the long axis of the elliptical block 16 is the same as the width of the sliding groove 20. A rotating assembly is provided on one side of the gear 19, which causes the rotating connecting rod 15 to rotate.

[0040] During operation: When the outer wall of the testing cylinder 3 is in contact with one side of the two hinges 5, due to the gravity of the testing cylinder 3, the two hinges 5 will be subjected to a downward force, which may cause them to rotate hingedly with the hinge seat 6. This could cause the testing cylinder 3 to slide off the surface of the inclined testing table 2 before testing begins. This is prevented by the elliptical block 16 and the slide groove 18, with the minor axis of the elliptical block 16 being the same as the width of the slide groove 18. When the two hinges 5 are above the top of the inclined testing table 2, the pressure from the testing cylinder 3 will not be... The elliptical block 16 rotates with the hinge seat 16 and during the downward movement of the hinge seat 16 and the optical detection head 4 for detection, the elliptical block 16 will slide along the slide groove 18 because the tilting fixed plate 17 and the tilting surface of the tilting detection table 2 have the same degree of inclination. When the elliptical block 16 slides to the slide groove 20, the elliptical block 16 and the rotating connecting rod 15 will rotate in conjunction with the rotating component, causing the hinge 5 to rotate with the hinge. At this time, the detection cylinder 3 has been detected. After the hinge 5 rotates, the detection cylinder 3 can slide directly out.

[0041] like Figures 4 to 5 As shown, the rotating assembly includes two rack plates 21, which are fixedly installed on one side of two inclined fixed plates 17 respectively. The rack plates 21 are located directly above the slide groove 20. Gears 19 are fixedly connected to the outer walls of the two rotating connecting rods 15. The teeth of the gears 19 mesh with the teeth of the rack plates 21. The number of teeth on the rack plates 21 is half the number of teeth on the gears 19.

[0042] During operation: When the elliptical block 16 slides to the position of the second groove 20, the gear 19 will just mesh with the teeth of the rack plate 21. Since the number of teeth of the rack plate 21 is half the number of teeth of the gear 19, the rotating connecting rod 15 will rotate 90 degrees, and the shaft of the first hinge seat 6 will rotate 90 degrees. At this time, the hinge 5 will just rotate 90 degrees. Therefore, after the two hinges 5 rotate, they will no longer be in contact with the outer wall of the detection cylinder 3, so that the detection cylinder 3 can slide out after the detection is completed.

[0043] like Figures 4 to 5 As shown, a support plate 22 is fixedly connected to one side of each of the two hinge seats 6. A return spring 24 is fixedly connected between one side of each of the two support plates 22 and one side of each of the two hinge pieces 5. A damping rod 23 is provided inside the return spring 24. The two ends of the damping rod 23 are fixedly connected to one side of the support plate 22 and one side of the hinge piece 5, respectively.

[0044] During operation: When the moving component drives the two hinge seats 6 to reset, the gear 19 will mesh with the rack plate 21, causing the rotating connecting rod 15 to rotate in the opposite direction. In conjunction with the damping rod 23 and the reset spring 24, when the two hinge seats 6 move upward to reset, the two hinge pieces 5 will rotate 90 degrees in the opposite direction to reset. This makes it easy for the two hinge pieces 5 to return to their initial state after the hinge seats 6 are reset, which is convenient for use in the next inspection.

[0045] like Figures 7 to 8 As shown, the feeding assembly includes a discharge bin 25, with an inlet bin 26 fixedly connected to the top of the discharge bin 25. The outlet of the discharge bin 25 is aligned with the top of the inclined detection table 2. A test cylinder 27 is provided on the inner wall of the discharge bin 25. A baffle plate 28 is attached to one side of the test cylinder 27. A rotating shaft 31 is fixedly connected to the bottom outer wall of the baffle plate 28. A bottom groove 29 is provided on the bottom inner wall of the discharge bin 25. The two ends of the rotating shaft 31 are rotatably connected to the inner wall of the bottom groove 29. A connecting rotating plate 30 is fixedly connected to the outer wall of the rotating shaft 31. A push-rotating assembly is provided below the connecting rotating plate 30.

[0046] During operation: When the testing cylinder 3 above the inclined testing table 2 is being tested, the next cylinder 27 to be tested is placed into the feed bin 26. The cylinder 27 to be tested enters the interior of the discharge bin 25 and is attached to one side of the baffle plate 28. When the two hinge seats 6 move up and reset, they will drive the push-rotation assembly to move. The push-rotation assembly will push the connecting rotating plate 30, so that the connecting rotating plate 30 rotates around the rotating shaft 31 as the central axis. When the connecting rotating plate 30 rotates, the baffle plate 28 will also rotate. When the baffle plate 28 rotates to the inner wall of the bottom groove 29, the cylinder 27 to be tested is no longer blocked by the baffle plate 28 and slides from the outlet of the discharge bin 25 to the top of the inclined testing table 2 for testing.

[0047] like Figures 7 to 8 As shown, the push-turn assembly includes two movable plates 32. A connecting frame 38 is fixedly connected to one side of each of the two movable plates 32. The two connecting frames 38 are respectively fixedly installed on one side of two hinge seats 6. A second hinge seat 33 is fixedly connected to the top of each of the two movable plates 32. A hinge plate 34 is fixedly connected to the shaft of each of the two hinge seats 33. A limit rod 35 is fixedly connected to the inner wall of the second hinge seat 33. The limit rod 35 is in contact with one side of the hinge plate 34.

[0048] During operation: When the two hinge seats 6 move down for testing, the moving plate 32 and the hinge plate 34 also move down. When the hinge seats 6 move up to reset, the hinge plate 34 moves up and gradually approaches and presses the connecting rotating plate 30, causing the connecting rotating plate 30 to rotate around the rotating shaft 31 as the central axis. When the hinge seats 6 have just finished resetting, the blocking plate 28 just rotates to the inner wall of the bottom groove 29, causing the cylinder 27 to be tested to slide down onto the inclined testing table 2. And through the set limit rod 35, the hinge plate 34 will not hinge with the shaft of the limit rod 35 when pressing the connecting rotating plate 30, and can smoothly push the connecting rotating plate 30 to rotate.

[0049] like Figure 10 As shown, a second return spring 37 is fixedly connected between the top surface of the movable plate 32 and the bottom surface of the hinge plate 34. A second damping rod 36 is provided inside the second return spring 37, and the two ends of the second damping rod 36 are fixedly connected to the top surface of the movable plate 32 and the bottom surface of the hinge plate 34, respectively.

[0050] During operation: With the damping rod 36 and the return spring 37 in place, when the hinge seat 6 moves the moving plate 32 downward, the top surface of the hinge plate 34 will first slide along the side of the connecting plate 30. During the sliding process, the hinge plate 34 will gradually squeeze the return spring 37, causing it to rotate slightly about the shaft of the hinge seat 33 as the center axis. This allows the hinge plate 34 to pass smoothly through the connecting plate 30 and move downward. After the hinge plate 34 moves away from the connecting plate 30, it will immediately return to its original position under the action of the return spring 37 and the damping rod 36, which facilitates pushing the connecting plate 30 when it rises.

[0051] like Figures 7 to 8 As shown, multiple return springs 340 are fixedly connected to the other side of the connecting plate 30. The other end of the multiple return springs 340 is fixedly connected to the bottom of the discharge bin 25. Each of the multiple return springs 340 has a damping rod 39 inside. The two ends of the damping rod 39 are fixedly connected to the other side of the connecting plate 30 and the back of the discharge bin 25, respectively.

[0052] During operation: With the damping rod 39 and the return spring 40, after the blocking plate 28 rotates and causes the test cylinder 27 to slide out, it can be reset immediately, which facilitates blocking the next product to be tested. In addition, with the multiple sets of damping rods 39 and return springs 40, the impact force generated when the test cylinder 27 just contacts the blocking plate 28 will not cause the blocking plate 28 to hinge and rotate, thus preventing the test cylinder 27 from rushing out directly.

[0053] like Figure 11As shown, an electric opening and closing plate 41 is provided on one side of the inclined detection table 2, and a placement platform 43 is provided on one side of the electric opening and closing plate 41. The placement platform 43 is fixedly installed on the top of the workbench 1, and a collection box 42 is provided on the top of the workbench 1. The collection box 42 is located directly below the electric opening and closing plate 41.

[0054] During operation: When the optical detection head 4 detects that the label printed on the detection cylinder 3 is qualified, the electric opening and closing plate 41 automatically opens. At this time, the qualified detection cylinder 3 will fall directly into the collection box 42 for collection. When the optical detection head 4 detects that the label printed on the detection cylinder 3 is unqualified, the electric opening and closing plate 41 will not open automatically. The unqualified detection cylinder 3 will slide down to the top of the placement table 43 and wait for the next step of processing.

[0055] 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. An optical inspection device for label printing quality, comprising a worktable (1), characterized in that: An inclined detection table (2) is fixedly installed on the top of the workbench (1). A detection cylinder (3) is set above the inclined detection table (2). An optical detection head (4) is set directly above the inclined detection table (2). A hinge seat (6) is set on both sides of the inclined detection table (2). A hinge component (5) is fixedly connected to the outer wall of the shaft of the two hinge seats (6). One side of the two hinge components (5) is attached to the outer wall of the detection cylinder (3). A fixed frame (7) is fixedly connected to the top of the optical detection head (4). The two ends of the fixed frame (7) are fixedly connected to one side of the two hinge seats (6). A moving component is set below the two hinge seats (6). The moving component is used to drive the two hinge seats (6) to move along the inclined surface of the inclined detection table (2). A feeding component is set on one side of the two hinge seats (6). The feeding component is used to transport the next detection cylinder (3) to be detected to the upper surface of the inclined detection table (2). The moving assembly includes two tilting slides (9), the tilting slides (9) and the tilting surface of the tilt detection table (2) are tilted at the same degree. The inner walls of the two tilting slides (9) are slidably connected to inner sliders (10), the inner walls of the two tilting slides (9) are rotatably connected to threaded conveying rods (11), the outer walls of the two threaded conveying rods (11) are threadedly connected to the inner walls of the two inner sliders (10), one end of the two threaded conveying rods (11) is fixedly connected to a transmission ring (13), the outer walls of the two transmission rings (13) are connected to a transmission belt (14), one side of one of the threaded conveying rods (11) is fixedly connected to a motor (12), the motor (12) is fixedly installed on the top of the workbench (1), the top of the two inner sliders (10) is fixedly connected to a connecting block (8), one side of the two connecting blocks (8) is fixedly connected to one side of the two hinge seats (6). The bottom of the shafts of the two hinge seats (6) are fixedly connected to rotating connecting rods (15), and the bottom of the two rotating connecting rods (15) are fixedly connected to elliptical blocks (16). The two sides of the tilt detection table (2) are fixedly connected to tilt fixing plates (17). The tilt fixing plates (17) and the tilt surface of the tilt detection table (2) are tilted at the same degree. The inner wall of the top surface of the tilt fixing plate (17) is provided with a sliding groove (18) and a sliding groove (20). The short axis of the elliptical block (16) is the same as the width of the sliding groove (18), and the long axis of the elliptical block (16) is the same as the width of the sliding groove (20). A rotating assembly is provided on one side of the gear (19). The rotating assembly causes the rotating connecting rod (15) to rotate.

2. The label printing quality optical inspection device according to claim 1, characterized in that: The rotating assembly includes two rack plates (21), which are fixedly installed on one side of two inclined fixed plates (17). The rack plates (21) are located directly above the slide groove (20). The outer walls of the two rotating connecting rods (15) are fixedly connected with gears (19). The teeth of the gears (19) mesh with the teeth of the rack plates (21). The number of teeth on the rack plates (21) is half the number of teeth on the gears (19).

3. The label printing quality optical inspection device according to claim 2, characterized in that: Each of the two hinge seats (6) has a support plate (22) fixedly connected to one side. Each of the two support plates (22) is fixedly connected to one side of the two hinges (5). Each of the two hinges (6) has a return spring (24) fixedly connected to one side of the support plate (22) and one side of the hinge (5). Each of the two return springs (24) has a damping rod (23) inside. Both ends of the damping rod (23) are fixedly connected to one side of the support plate (22) and one side of the hinge (5).

4. The label printing quality optical inspection device according to claim 3, characterized in that: The feeding assembly includes a discharge bin (25), with a feed bin (26) fixedly connected to the top of the discharge bin (25). The outlet of the discharge bin (25) is aligned with the top of the inclined testing table (2). A test cylinder (27) is provided on the inner wall of the discharge bin (25). A baffle plate (28) is attached to one side of the test cylinder (27). A rotating shaft (31) is fixedly connected to the bottom outer wall of the baffle plate (28). A bottom groove (29) is provided on the bottom inner wall of the discharge bin (25). The two ends of the rotating shaft (31) are rotatably connected to the inner wall of the bottom groove (29). A connecting rotating plate (30) is fixedly connected to the outer wall of the rotating shaft (31). A push-rotating assembly is provided below the connecting rotating plate (30).

5. The label printing quality optical inspection device according to claim 4, characterized in that: The push-turn assembly includes two movable plates (32), each of which is fixedly connected to a connecting frame (38) on one side. The two connecting frames (38) are respectively fixedly installed on one side of two hinge seats (6). The top of each of the two movable plates (32) is fixedly connected to a hinge seat (33). The shafts of the two hinge seats (33) are fixedly connected to hinge plates (34). The inner wall of the hinge seat (33) is fixedly connected to a limit rod (35), which is in contact with one side of the hinge plate (34).

6. The label printing quality optical inspection device according to claim 5, characterized in that: A second return spring (37) is fixedly connected between the top surface of the movable plate (32) and the bottom surface of the hinge plate (34). A second damping rod (36) is provided inside the second return spring (37). The two ends of the second damping rod (36) are fixedly connected to the top surface of the movable plate (32) and the bottom surface of the hinge plate (34), respectively.

7. The label printing quality optical inspection device according to claim 6, characterized in that: Multiple reset springs (40) are fixedly connected to the other side of the connecting plate (30). The other end of the multiple reset springs (40) is fixedly connected to the bottom of the discharge bin (25). Each of the multiple reset springs (40) is provided with a damping rod (39). The two ends of the damping rod (39) are fixedly connected to the other side of the connecting plate (30) and the back of the discharge bin (25), respectively.

8. The label printing quality optical inspection device according to claim 7, characterized in that: An electric opening and closing plate (41) is provided on one side of the tilting testing table (2), and a placement platform (43) is provided on one side of the electric opening and closing plate (41). The placement platform (43) is fixedly installed on the top of the workbench (1). A collection box (42) is provided on the top of the workbench (1), and the collection box (42) is located directly below the electric opening and closing plate (41).

Images