Optical detection device for label printing quality

Abstract

The invention relates to the technical field of printing quality, and discloses a label printing quality optical detection device which comprises a working table, an inclined detection table is fixedly installed at the top of the working table, a detection cylinder is arranged above the inclined detection table, an optical detection head is arranged over the inclined detection table, and first hinge seats are arranged on the two sides of the inclined detection table; a moving assembly is arranged below the two first hinge seats, a discharging assembly is arranged on one side of the two first hinge seats, and when the first hinge seats and the optical detection head are driven by a downward moving assembly to move downwards along the inclined face of the inclined detection table, the detection cylinder can roll along the inclined face 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 all the time, the label can be exposed under the optical detection head in an omnibearing and dead-angle-free mode, the situation of missing detection or false detection caused by improper position or shielding of the label is reduced, and the detection accuracy is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of printing quality detection, and specifically relates to an optical detection device for label printing quality. Background Art

[0002] The label printing quality optical detection device is a device specially used to detect the label printing quality. It mainly uses optical reading technology to achieve accurate detection of label printing quality. The basic principle is to use the light source and lens of the device to read the information in the label, and then compare the read information with the set standard to determine whether the label printing quality meets the requirements. This process mainly relies on optical imaging technology and image analysis technology.

[0003] The prior art also proposes some solutions: for example, a Chinese patent with announcement number CN219266228U announces a label printing quality inspection device, including a conveyor platform, a detection mechanism and a positioning component; the conveyor platform is provided with a positioning component and a detection mechanism, and through the coordinated use of the above devices, the product to be tested is fit with the sliding plate and then the sliding plate is pushed to move, and during the movement of the sliding plate, it can also move in the vertical direction to allow the product to be tested to pass through, and complete the gathering under the action of the correction plate, ensuring that the upper surface of the product to be tested is within the detection range of the detection mechanism, thereby improving the detection rate.

[0004] When the existing device performs label quality inspection on the outer wall of a cylindrical product, it is necessary to ensure that the label on the outer wall of the product is aligned with the detection head before the cylindrical product is transported to directly under the detection device. Due to the shape characteristics of the cylindrical product, the label may deviate or skew when attached, making it difficult to accurately align the detection head when transported to the bottom of the detection device, resulting in the detection head being unable to capture the complete label image, thereby affecting the accuracy of the detection result.

[0005] To this end, the present invention provides a device for optically detecting label printing quality. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art: solve at least one technical problem raised in the background technology.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the optical detection device for label printing quality described in the present invention includes a workbench, a tilting detection platform is fixedly installed on the top of the workbench, a detection cylinder is arranged above the tilting detection platform, an optical detection head is arranged directly above the tilting detection platform, hinged seats are arranged on both sides of the tilting detection platform, the outer walls of the shafts of the two hinged seats are fixedly connected with hinges, one side of the two hinges is attached to the outer wall of the detection cylinder, a fixed frame is fixedly connected to the top of the optical detection head, the two ends of the fixed frame are respectively fixedly connected to one side of the two hinged seats, a moving component is arranged below the two hinged seats, the moving component is used to drive the two hinged seats to move along the inclined surface of the tilting detection platform, a unloading component is arranged on one side of the two hinged seats, and the unloading component is used to transport the next detection cylinder to be inspected to the upper surface of the tilting detection platform.

[0008] Preferably, the moving assembly includes two inclined slides, the inclined slides and the inclined surface of the inclined detection platform have the same inclination degree, the inner walls of the two inclined slides are slidably connected with inner sliders, the inner walls of the two inclined slides are rotatably connected with threaded conveying rods, the outer walls of the two threaded conveying rods are respectively threadedly connected to the inner walls of the two inner sliders, one end of the two threaded conveying rods are fixedly connected with transmission rings, and a transmission belt is transmission-connected between the outer walls of the two transmission rings, one side of one threaded conveying rod is fixedly connected with a motor, the motor is fixedly installed on the top of the workbench, the tops of the two inner sliders are fixedly connected with connecting blocks, and one side of the two connecting blocks is respectively fixedly connected to one side of one of the two articulated seats.

[0009] Preferably, the bottom of the shaft rods of the two articulated seats are fixedly connected with a rotating connecting rod, the bottom of the two rotating connecting rods are fixedly connected with an elliptical block, and both sides of the tilt detection platform are fixedly connected with an inclined fixing plate, the inclination degree of the inclined fixing plate is the same as the inclined surface of the tilt detection platform, and the inner wall of the top surface of the inclined fixing plate is provided with a slide groove 1 and a slide groove 2, the short axis of the elliptical block is the same as the width of the slide groove 1, and the long axis of the elliptical block is the same as the width of the slide groove 2, and a rotating component is provided on one side of the gear, and the rotating component enables the rotating connecting rod to rotate.

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

[0011] Preferably, one side of the two hinged seats is fixedly connected to a receiving plate, one side of the two receiving plates is fixedly connected to one side of the two hinged parts by a return spring, a damping rod is arranged inside the return spring, and both ends of the damping rod are fixedly connected to one side of the receiving plate and one side of the hinged part respectively.

[0012] Preferably, the unloading component includes a discharge bin, the top of which is fixedly connected to a feed bin, the outlet of the discharge bin is aligned with the top of the tilt detection platform, a cylinder to be tested is provided on the inner wall of the discharge bin, a blocking plate is attached to one side of the cylinder to be tested, a rotating shaft is fixedly connected to the bottom outer wall of the blocking plate, a bottom groove is provided on the bottom inner wall of the discharge bin, both 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 push-turn assembly is provided below the connecting rotating plate.

[0013] Preferably, when the detection cylinder above the tilted detection table is being detected, the next cylinder to be tested is placed in the feed bin, the cylinder to be tested enters the interior of the discharge bin and fits against one side of the blocking plate, and when the two hinged seats are moved up and reset, the push-and-turn assembly will be driven to move, and the push-and-turn assembly will push the connecting rotating plate to rotate around the rotating shaft as the center axis, and when the connecting rotating plate rotates, the blocking plate will also rotate, and when the blocking plate rotates to the inner wall of the bottom groove, the cylinder to be tested is not blocked by the blocking plate, and slides from the outlet of the discharge bin to the top of the tilted detection table to be ready for detection.

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

[0015] Preferably, multiple reset springs three are fixedly connected to the other side of the connecting rotating plate, the other ends of the multiple reset springs three are fixedly connected to the bottom of the discharging bin, and damping rods three are arranged inside the multiple reset springs three, and the two ends of the damping rods three are respectively fixedly connected to the other side of the connecting rotating plate and the back side of the discharging bin.

[0016] Preferably, an electric opening and closing plate is provided on one side of the tilt detection table, a placing table is provided on one side of the electric opening and closing plate, the placing table is fixedly installed on the top of the workbench, a collection box is provided on the top of the workbench, and the collection box is located directly below the electric opening and closing plate.

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

[0018] 1. The optical inspection device for label printing quality described in the present invention drives the articulated seat and the optical inspection head to move downward along the inclined surface of the inclined inspection platform through the downward moving component. The inspection cylinder will roll along the inclined surface of the inclined inspection platform under the action of gravity, so that the label printed on the outer wall of the inspection cylinder will always be detected by the optical inspection head. The label can be exposed to the optical inspection head in all directions and without dead angles, reducing missed detection or false detection caused by improper label position or obstruction, and improving the accuracy of detection.

[0019] 2. The optical detection device for label printing quality described in the present invention, when the detection cylinder above the tilted detection table is detected, the next cylinder to be detected is placed in the feed bin, the cylinder to be detected enters the interior of the discharge bin and fits against one side of the blocking plate, and when the two hinged seats are moved up and reset, the push-and-turn assembly will be driven to move, and the push-and-turn assembly will push the connecting rotating plate to make the connecting rotating plate rotate around the rotating shaft as the center axis, and when the connecting rotating plate rotates, the blocking plate will also rotate, and when the blocking plate rotates to the inner wall of the bottom groove, the cylinder to be detected is not blocked by the blocking plate, and slides from the outlet of the discharge bin to the top of the tilted detection table to prepare for detection, the operation is simple, and automatic loading is performed when the two hinged seats are reset, which reduces manual intervention, reduces product waiting time, and improves the overall operation efficiency of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is an overall stereogram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the tilt detection platform in the present invention;

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

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

[0025] Figure 5 It is a schematic diagram of the structure of the inclined fixed plate in the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the inclined slide in the present invention;

[0027] Figure 7 It is a schematic diagram of the three structures of the return spring in the present invention;

[0028] Figure 8 It is a schematic diagram of the internal structure of the discharge bin in the present invention;

[0029] Fig. 9 It is a structural schematic diagram of the connecting rotating plate in the present invention;

[0030] Fig.10 It is a structural schematic diagram of the hinged plate in the present invention;

[0031] Fig.11 It is a schematic diagram of the structure of the opening and closing plate in the present invention;

[0032] In the figure: 1, workbench; 2, tilting detection table; 3, detection cylinder; 4, optical detection head; 5, hinge; 6, hinge seat 1; 7, fixed frame; 8, connecting block; 9, tilting slide; 10, inner slide; 11, threaded conveying rod; 12, motor; 13, transmission ring; 14, transmission belt; 15, rotating connecting rod; 16, elliptical block; 17, tilting fixed plate; 18, slide 1; 19, gear; 20, slide 2; 21, rack plate; 22, receiving plate; 2 3. Damping rod one; 24. Reset spring one; 25. Discharging bin; 26. Feeding bin; 27. Cylinder to be tested; 28. Blocking plate; 29. ​​Bottom groove; 30. Connecting rotating plate; 31. Rotating shaft; 32. Moving plate; 33. Articulated seat two; 34. Articulated plate; 35. Limiting rod; 36. Damping rod two; 37. Reset spring two; 38. Connecting frame; 39. Damping rod three; 40. Reset spring three; 41. Electric opening and closing plate; 42. Collection box; 43. Placement table. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0034] like Figures 1 to 11 As shown, the present invention provides a technical solution: an optical detection device for label printing quality, comprising a workbench 1, a tilt detection platform 2 is fixedly installed on the top of the workbench 1, a detection cylinder 3 is arranged above the tilt detection platform 2, an optical detection head 4 is arranged directly above the tilt detection platform 2, hinge seats 6 are arranged on both sides of the tilt detection platform 2, the outer walls of the shafts of the two hinge seats 6 are fixedly connected with hinges 5, one side of the two hinges 5 is attached to the outer wall of the detection cylinder 3, a fixing frame 7 is fixedly connected to the top of the optical detection head 4, the two ends of the fixing frame 7 are respectively fixedly connected to one side of the two hinge seats 6, a moving component is arranged 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 tilt detection platform 2, and a unloading component is arranged on one side of the two hinge seats 6, the unloading component is used to transport the next detection cylinder 3 to be detected to the upper surface of the tilt detection platform 2.

[0035] During operation: In the initial state, the detection cylinder 3 to be detected is located above the top of the tilted detection platform 2, and the angle of the tilted detection platform 2 is 30 degrees. At this time, the optical detection head 4 is just located above the detection cylinder 3. When the detection cylinder 3 needs to be detected, the moving component is started, and the moving component causes the hinge seat 6 and the hinge 5 to move downward along the tilted detection platform 2. During the downward movement, since the detection cylinder 3 is placed on the tilted detection platform 2, under the action of gravity, the detection cylinder 3 will always fit one side of the two hinges 5. The detection cylinder 3 moves along the inclined surface, and according to the shape characteristics of the detection cylinder 3, the detection cylinder 3 itself will rotate when moving along the inclined surface. Therefore, when the moving component drives the hinge seat 6 to move downward, the hinge 5 will roll along the inclined surface, and the hinge seat 6 will drive the optical detection head 4 to move through the fixed frame 7, so that the optical detection head 4 is always aligned with the top of the detection cylinder 3, and when the hinge seat 6 rolls, the label on the outer wall will always face upward at a certain moment and be scanned by the optical detection head 4 to complete the detection work, and at both ends. When the articulated seat 6 is about to move down to the bottom of the inclined detection platform 2, the two articulated parts 5 will be hinged and rotated, so that the two detection cylinders 3 slide out and leave the top of the inclined detection platform 2 for collection. At this time, the two articulated seats 6 are moved up and reset through the downward moving component. When they are about to be reset to the initial position, the two articulated seats 6 will transport the next product to be tested to the top position above the inclined detection platform 2 through the unloading component, so as to facilitate the next test. Through the above embodiment, the articulated seat 6 and the optical detection head 4 are driven by the downward moving component to move along the inclined surface of the inclined detection platform 2. When moving downward, the detection cylinder 3 will roll along the inclined surface of the inclined detection platform 2 under the action of gravity, so that the label printed on the outer wall of the detection cylinder 3 will always be detected by the optical detection head 4, and the label can be exposed to the optical detection head 4 in all directions and without dead angles, reducing the missed detection or false detection caused by improper label position or obstruction, improving the accuracy of detection, and the detection can be started by starting the downward moving component. The operation is simple, and automatic loading is carried out when the two articulated seats 6 are reset, reducing manual intervention, reducing product waiting time, and improving the overall operation efficiency of the production line.

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

[0037] like Figures 2 to 3As shown, the moving assembly includes two tilting slides 9, and the tilting slides 9 have the same inclination degree as the tilting surface of the tilting detection platform 2. The inner walls of the two tilting slides 9 are slidably connected with inner sliders 10, and the inner walls of the two tilting slides 9 are rotatably connected with threaded conveying rods 11. The outer walls of the two threaded conveying rods 11 are respectively threadedly connected to the inner walls of the two inner sliders 10, and one end of the two threaded conveying rods 11 is fixedly connected with a transmission ring 13, and a transmission belt 14 is transmission-connected between the outer walls of the two transmission rings 13, one side of one threaded conveying rod 11 is fixedly connected with a motor 12, and the motor 12 is fixedly installed on the top of the workbench 1, and the tops of the two inner sliders 10 are fixedly connected with connecting blocks 8, and one side of the two connecting blocks 8 is respectively fixedly connected to one side of two articulated seats 6.

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

[0039] like Figures 4 to 5 As shown, the bottom of the shaft rods of the two articulated seats 6 are fixedly connected with a rotating link 15, and the bottom of the two rotating links 15 are fixedly connected with an elliptical block 16. The two sides of the tilt detection platform 2 are fixedly connected with a tilt fixing plate 17. The tilt fixing plate 17 has the same degree of inclination as the inclined surface of the tilt detection platform 2. The inner wall of the top surface of the tilt fixing plate 17 is provided with a slide groove 18 and a slide groove 20. The short axis of the elliptical block 16 is the same as the width of the slide groove 18, and the long axis of the elliptical block 16 is the same as the width of the slide groove 20. A rotating component is provided on one side of the gear 19, and the rotating component causes the rotating link 15 to rotate.

[0040] During operation: when the outer wall of the detection cylinder 3 is attached to one side of the two hinges 5, due to the gravity of the detection cylinder 3, the two hinges 5 will be subjected to a downward force, which may cause the hinges 5 to rotate with the hinge seat 6, so that the detection cylinder 3 slides off the surface of the tilting detection platform 2 before the detection begins. The elliptical block 16 and the slide groove 18 limit the two hinges 5, and the short axis of the elliptical block 16 is the same as the width of the slide groove 18. When the two hinges 5 are above the top of the tilting detection platform 2, they will not be subjected to the pressure of the detection cylinder 3. It is hinged and rotated with the hinge seat 16, and when the hinge seat 16 and the optical detection head 4 move down for detection, since the tilting fixing plate 17 and the tilting detection platform 2 have the same tilting degree, the elliptical block 16 will slide along the slide groove 18. When the elliptical block 16 slides to the slide groove 20, in conjunction with the rotating assembly, the elliptical block 16 and the rotating connecting rod 15 will rotate, and the hinge 5 will be hinged and rotated. At this time, the detection cylinder 3 has been detected, and the detection cylinder 3 can directly slide out after the hinge 5 rotates.

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

[0042] During operation: when the elliptical block 16 slides to the position of the second slide groove 20, the gear 19 will just mesh with the teeth of the rack plate 21, and because the number of teeth of the rack plate 21 is half of the number of teeth of the gear 19, the rotating connecting rod 15 will rotate 90 degrees, and the shaft rod of the hinge seat 1 6 will rotate 90 degrees. At this time, the hinge 5 will just rotate 90 degrees, so the two hinges 5 will no longer fit the outer wall of the detection cylinder 3 after rotation, so that the detection cylinder 3 can slide out after the detection is completed.

[0043] like Figures 4 to 5 As shown, one side of the two hinge seats 6 is fixedly connected with a receiving plate 22, one side of the two receiving plates 22 is respectively fixedly connected with one side of the two hinges 5 with a return spring 24, a damping rod 23 is arranged inside the return spring 24, and both ends of the damping rod 23 are respectively fixedly connected with one side of the receiving plate 22 and one side of the hinge 5.

[0044] During operation: when the moving assembly drives the two articulated seats 6 to reset, the gear 19 will mesh with the rack plate 21 to make the rotating connecting rod 15 rotate in the opposite direction, and cooperate with the damping rod 23 and the reset spring 24 so that when the two articulated seats 6 move up and reset, the two articulated parts 5 rotate 90 degrees in the opposite direction to reset, so that the two articulated parts 5 return to the initial state after the articulated seats 6 are reset, which is convenient for use in the next detection work.

[0045] like Figures 7 and 8 As shown, the unloading assembly includes a discharge bin 25, the top of which is fixedly connected to a feed bin 26, the outlet of the discharge bin 25 is aligned with the top of the tilt detection platform 2, the inner wall of the discharge bin 25 is provided with a cylinder 27 to be tested, one side of the cylinder 27 to be tested is fitted with a blocking plate 28, the bottom outer wall of the blocking plate 28 is fixedly connected to a rotating shaft 31, a bottom groove 29 is provided on the bottom inner wall of the discharge bin 25, both ends of the rotating shaft 31 are rotatably connected to the inner wall of the bottom groove 29, the outer wall of the rotating shaft 31 is fixedly connected to a connecting rotating plate 30, and a push-turn assembly is provided below the connecting rotating plate 30.

[0046] During operation: when the detection cylinder 3 above the tilting detection platform 2 is being detected, the next cylinder 27 to be detected is placed in the feeding bin 26, and the cylinder 27 to be detected enters the interior of the discharging bin 25 and fits against one side of the blocking plate 28. When the two hinge seats 6 are moved up and reset, the push-and-turn assembly will be driven to move, and the push-and-turn assembly will push the connecting rotating plate 30, so that the connecting rotating plate 30 rotates with the rotating shaft 31 as the central axis. When the connecting rotating plate 30 rotates, the blocking plate 28 will also rotate. When the blocking plate 28 rotates to the inner wall of the bottom groove 29, the cylinder 27 to be detected is not blocked by the blocking plate 28, and slides from the outlet of the discharging bin 25 to the top of the tilting detection platform 2 to be ready for detection.

[0047] like Figures 7 and 8 As shown, the push-and-turn assembly includes two movable plates 32, one side of the two movable plates 32 is fixedly connected with a connecting frame 38, the two connecting frames 38 are respectively fixedly installed on one side of two hinge seats 1 6, the tops of the two movable plates 32 are fixedly connected with hinge seats 2 33, the shafts of the two hinge seats 2 33 are fixedly connected with hinge plates 34, the inner wall of the hinge seat 2 33 is fixedly connected with a limiting rod 35, and the limiting rod 35 is in contact with one side of the hinge plate 34.

[0048] During operation: when the two hinged seats 6 move down for detection, the movable plate 32 and the hinged plate 34 will also move down. When the hinged seat 6 moves up to reset, the hinged plate 34 will gradually approach the connecting rotating plate 30 and squeeze the connecting rotating plate 30, so that the connecting rotating plate 30 rotates with the rotating shaft 31 as the center axis. When the hinged seat 6 is just reset, the blocking plate 28 just rotates to the inner wall of the bottom groove 29, so that the cylinder 27 to be tested slides to the top of the tilt detection platform 2, and through the set limit rod 35, the hinged plate 34 will not be hinged and rotated with the shaft rod of the limit rod 35 when squeezing the connecting rotating plate 30, and can smoothly push the connecting rotating plate 30 to rotate.

[0049] like Fig.10 As shown, a return spring 2 37 is fixedly connected between the top surface of the movable plate 32 and the bottom surface of the hinged plate 34, and a damping rod 2 36 is arranged inside the return spring 2 37, and the two ends of the damping rod 2 36 are fixedly connected to the top surface of the movable plate 32 and the bottom surface of the hinged plate 34 respectively.

[0050] During operation: through the provided damping rod 2 36 and return spring 2 37, when the hinge seat 1 6 drives the movable plate 32 to move downward, the top surface of the hinge plate 34 will first slide along the side of the connecting rotating plate 30, and during the sliding process, the hinge plate 34 will gradually squeeze the return spring 2 37, and make it rotate slightly with the shaft rod of the hinge seat 2 33 as the central axis, so that the hinge plate 34 can smoothly pass through the connecting rotating plate 30 and move downward, and after the hinge plate 34 moves downward and leaves the connecting rotating plate 30, it will immediately reset under the action of the return spring 2 37 and the damping rod 2 36, so as to push the connecting rotating plate 30 when rising.

[0051] like Figures 7 and 8 As shown, the other side of the connecting rotating plate 30 is fixedly connected with a plurality of reset springs three 40, the other ends of the plurality of reset springs three 40 are fixedly connected to the bottom of the discharging bin 25, and the interiors of the plurality of reset springs three 40 are provided with damping rods three 39, and the two ends of the damping rods three 39 are respectively fixedly connected to the other side of the connecting rotating plate 30 and the back side of the discharging bin 25.

[0052] During operation: by means of the damping rod three 39 and the reset spring three 40, after the blocking plate 28 rotates to make the cylinder 27 to be tested slide out, it can be reset immediately, so as to block the next product to be tested, and by means of the multiple groups of damping rods three 39 and the reset spring three 40, the impact force generated when the cylinder 27 to be tested just contacts the blocking plate 28 will not cause the blocking plate 28 to be hinged and rotated, so as to prevent the cylinder 27 to be tested from rushing out directly.

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

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

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A label printing quality optical detection device, comprising a workbench (1), characterized in that: A tilt detection platform (2) is fixedly installed on the top of the workbench (1), a detection cylinder (3) is arranged above the tilt detection platform (2), an optical detection head (4) is arranged directly above the tilt detection platform (2), hinge seats (6) are arranged on both sides of the tilt detection platform (2), the outer walls of the shafts of the two hinge seats (6) are fixedly connected with hinges (5), one side of the two hinges (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 respectively fixedly connected to one side of the two hinge seats (6), a moving assembly is arranged below the two hinge seats (6), the moving assembly is used to drive the two hinge seats (6) to move along the inclined surface of the tilt detection platform (2), a feeding assembly is arranged on one side of the two hinge seats (6), the feeding assembly is used to transport the next testing cylinder (3) to be tested to the upper surface of the tilt detection platform (2).

2. The optical detection device for label printing quality according to claim 1, characterized in that: The moving assembly comprises two tilting slides (9), the tilting slides (9) and the tilting detection platform (2) have the same tilting degree, the inner walls of the two tilting slides (9) are slidably connected with inner sliders (10), the inner walls of the two tilting slides (9) are rotatably connected with threaded conveying rods (11), the outer walls of the two threaded conveying rods (11) are respectively threadedly connected with the inner walls of the two inner sliders (10), one end of the two threaded conveying rods (11) are fixedly connected with a transmission ring (13), the outer walls of the two transmission rings (13) are transmission-connected with a transmission belt (14), one side of one of the threaded conveying rods (11) is fixedly connected with a motor (12), the motor (12) is fixedly installed on the top of the workbench (1), the tops of the two inner sliders (10) are fixedly connected with connecting blocks (8), and one side of the two connecting blocks (8) is respectively fixedly connected with one side of two hinged seats (6).

3. The optical detection device for label printing quality according to claim 2, characterized in that: The bottoms of the shafts of the two articulated seats (6) are fixedly connected with rotating links (15), the bottoms of the two rotating links (15) are fixedly connected with elliptical blocks (16), both sides of the tilt detection platform (2) are fixedly connected with tilt fixing plates (17), the tilt fixing plates (17) and the tilt detection platform (2) have the same degree of inclination, the top inner wall of the tilt fixing plate (17) is provided with a slide groove (18) and a slide groove (20), the short axis of the elliptical block (16) is the same as the width of the slide groove (18), the long axis of the elliptical block (16) is the same as the width of the slide groove (20), and a rotating assembly is arranged on one side of the gear (19), and the rotating assembly enables the rotating link (15) to rotate.

4. The optical detection device for label printing quality according to claim 3, characterized in that: The rotating assembly comprises two rack plates (21), the two rack plates (21) are respectively fixedly mounted on one side of two inclined fixed plates (17), the rack plates (21) are located directly above the second 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) are meshed with the teeth of the rack plates (21), and the number of teeth of the rack plates (21) is half the number of teeth of the gears (19).

5. The optical detection device for label printing quality according to claim 4, characterized in that: One side of the two hinge seats (6) is fixedly connected to a receiving plate (22), one side of the two receiving plates (22) is respectively fixedly connected to one side of the two hinged members (5) with a return spring (24), a damping rod (23) is arranged inside the return spring (24), and two ends of the damping rod (23) are respectively fixedly connected to one side of the receiving plate (22) and one side of the hinged member (5).

6. The optical detection device for label printing quality according to claim 5, characterized in that: The material discharge assembly comprises a discharge bin (25), the top of which is fixedly connected to a feed bin (26), the outlet of which is aligned with the top of the tilt detection platform (2), the inner wall of the discharge bin (25) is provided with a cylinder to be tested (27), one side of the cylinder to be tested (27) is fitted with a blocking plate (28), the bottom outer wall of the blocking plate (28) is fixedly connected to a rotating shaft (31), the bottom inner wall of the discharge bin (25) is provided with a bottom groove (29), the two ends of the rotating shaft (31) are rotatably connected to the inner wall of the bottom groove (29), the outer wall of the rotating shaft (31) is fixedly connected to a connecting rotating plate (30), and a push-rotating assembly is provided below the connecting rotating plate (30).

7. The optical detection device for label printing quality according to claim 6, characterized in that: The push-and-turn assembly comprises two movable plates (32), one side of the two movable plates (32) is fixedly connected with a connecting frame (38), the two connecting frames (38) are respectively fixedly installed on one side of two hinge seats (6), the tops of the two movable plates (32) are fixedly connected with hinge seats (33), the shafts of the two hinge seats (33) are fixedly connected with hinge plates (34), the inner wall of the hinge seat (33) is fixedly connected with a limiting rod (35), and the limiting rod (35) is in contact with one side of the hinge plate (34).

8. The optical detection device for label printing quality according to claim 7, 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 hinged plate (34), and a second damping rod (36) is arranged inside the second return spring (37). The two ends of the second damping rod (36) are respectively fixedly connected to the top surface of the movable plate (32) and the bottom surface of the hinged plate (34).

9. The optical detection device for label printing quality according to claim 8, characterized in that: A plurality of return springs three (40) are fixedly connected to the other side of the connecting rotating plate (30), the other ends of the plurality of return springs three (40) are fixedly connected to the bottom of the discharging bin (25), and a damping rod three (39) is arranged inside the plurality of return springs three (40), and the two ends of the damping rod three (39) are respectively fixedly connected to the other side of the connecting rotating plate (30) and the back side of the discharging bin (25).

10. The optical detection device for label printing quality according to claim 9, characterized in that: An electric opening and closing plate (41) is arranged on one side of the tilt detection platform (2), a placement platform (43) is arranged on one side of the electric opening and closing plate (41), the placement platform (43) is fixedly mounted on the top of the workbench (1), a collection box (42) is arranged on the top of the workbench (1), and the collection box (42) is located directly below the electric opening and closing plate (41).

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