Printing and packaging pattern detection device

Abstract

The invention relates to the technical field of printing detection, and discloses a printing packaging pattern detection device which comprises a bearing frame. A conveying assembly used for conveying packaging pieces is arranged in the bearing frame. The overturning positioning mechanism comprises a bearing rotary table, the bearing rotary table is rotationally arranged in the bearing frame, the outer side of the bearing rotary table is connected with a bearing plate, and the bearing plate can bear the packaging parts conveyed by the conveying assembly; the follow-up visual inspection mechanism is rotationally arranged on one side of the bearing frame, the follow-up visual inspection mechanism comprises a bearing base plate arranged above the bearing frame, a visual inspection part is arranged on one side of the bearing base plate, an air chamber is arranged on one side of the visual inspection part, and a second air hole is formed in one side of the air chamber; in the detection state, the second air holes flatten the packaging pieces on the bearing plate. The printing and packaging pattern detection device can effectively solve the problem that in the prior art, the detection work is easily interfered due to the fact that printing patterns on the outer side of a flexible package are uneven.

Description

Technical Field

[0001] This invention relates to the field of printing inspection technology, and more specifically to a device for inspecting printed packaging patterns. Background Technology

[0002] In the packaging and printing industry, cartons, color boxes, and flexible packaging products serve as the core carriers for product transportation and warehousing, and their printing quality directly impacts brand image and user experience. The integrity, clarity, registration accuracy, and absence of defects such as dirt and omissions in the printed patterns are crucial aspects of ensuring packaging quality; therefore, efficient and accurate automated inspection of printed packaging patterns has become an inevitable trend in the industry.

[0003] In related technologies, printing and packaging pattern inspection technology mainly includes two methods: manual inspection and machine vision inspection. Among them, machine vision inspection has gradually become the mainstream. For example, the patent with the prior art publication number CN117849060B provides a printing quality inspection device with double-sided inspection function. This device uses two parallel and spaced conveyor belts, leaving space in the middle to place upper and lower inspection modules. Multiple clamping parts are evenly distributed on a fixed shaft and movably connected to a horizontal plate, so that the clamping parts are slidably connected to the first conveyor belt. By using the clamping parts to press the printed matter to be inspected onto the spaced first conveyor belt, the upper optical inspection module and the lower optical inspection module simultaneously inspect both sides of the printed matter to be inspected, which has a short inspection time and high efficiency.

[0004] While the existing technical solutions described above support the printed materials on both sides using two conveyor belts and employ clamping components to achieve stable transport, and combine this with the upper and lower optical inspection modules to simultaneously inspect both sides of the printed materials, when inspecting printed patterns on flexible packaging (such as plastic bags and paper bags), the packaging needs to be laid flat on the conveyor belt and clamped. When flattening the packaging, uneven force may cause uneven images. If the packaging is not laid flat (i.e., in a relaxed state), the middle of the packaging may deform due to its own weight or air resistance, also resulting in uneven printed patterns (such as wrinkles, wavy lines, and warping). Uneven printed patterns will directly interfere with image quality in subsequent inspection processes, such as focusing difficulties and image blurring, reflection and glare interference, and shadow occlusion. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a printed packaging pattern detection device, which can effectively solve the problem that the printed pattern on the outside of flexible packaging is easily interfered with the detection work due to unevenness.

[0006] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a printed packaging pattern detection device, comprising: The support frame, arranged longitudinally, is used to support and install various components and mechanisms; the support frame contains a conveyor assembly for conveying the packaged items. A flipping and positioning mechanism is set inside the carrier frame. The flipping and positioning mechanism includes a carrier turntable, which is rotatably set inside the carrier frame. A support plate is connected to the outside of the carrier turntable, and the support plate can support the package conveyed by the conveying component. A follow-up visual inspection mechanism is rotatably mounted on one side of a support frame. The follow-up inspection mechanism includes a support base plate mounted above the support frame. A visual inspection component is mounted on one side of the support base plate, and an air chamber is mounted on one side of the visual inspection component. A second air hole is opened on one side of the air chamber. In the inspection state, the second air hole smooths the package on the support plate.

[0007] Furthermore, the conveying assembly includes a first conveyor belt and a second conveyor belt, wherein the length of the second conveyor belt is greater than the length of the first conveyor belt; Several first conveyor belts are provided, and the first and second conveyor belts are arranged alternately and synchronously. When the support plate supports the package conveyed by the conveying assembly, the support plate is located between two adjacent second conveyor belts and is arranged corresponding to the first conveyor belt.

[0008] Furthermore, each of the support plates is slidably provided with a support slide on one side that is close to the other, and the support slide can extend out of the corresponding support plate; A groove is provided on one side of the support plate near the support turntable. A limit block is slidably arranged in the groove. The limit block is connected to the support slide table, and an elastic element is connected to the side of the limit block away from the support slide table.

[0009] Furthermore, the outer side of each support slide is provided with a guide surface, which is V-shaped. A guide is provided at the bottom of the support frame corresponding to one side of the support turntable. One end of the guide is V-shaped, so that when the guide surface abuts the guide, the support slide moves toward the inside of the support plate.

[0010] Furthermore, each of the support plates is provided with an air passage, and a first air hole is provided on one side of the air passage, with the first air hole facing the follow-up vision detection mechanism; Ventilation holes are provided on the outer side of the rotating platform corresponding to the air passage.

[0011] Furthermore, a hollow shaft is provided on the inner side of the bearing turntable, and one end of the hollow shaft is a sealed structure and connected to a second power component; A vent pipe is rotatably provided at the other end of the hollow shaft. A guide pipe is fixedly provided at one end of the vent pipe. The guide pipe is rotatably arranged in the hollow shaft, and an air outlet is opened on the outside of the guide pipe.

[0012] Furthermore, a first transmission gear is fixedly provided at one end of the hollow shaft, and the first transmission gear includes a transmission idle section; The hollow shaft is rotatably connected to a rotating arm via a first transmission gear, and the other end of the rotating arm is rotatably disposed on the outside of the supporting base plate.

[0013] Furthermore, a reset block is fixedly provided at the bottom end of the rotating arm, which is used to drive the rotating arm and the supporting base plate to reverse and reset. One of the rotating arms is connected to a third power component for driving the rotation of the supporting substrate.

[0014] Furthermore, it also includes a sorting mechanism located above the support frame. The sorting mechanism includes a collection bin, and a guide plate is provided on one side of the collection bin. After the package is inspected, the collection bin moves toward the support plate, and the package enters the collection bin from the guide plate.

[0015] Furthermore, the sorting mechanism also includes: A sliding guide sleeve is fixedly installed on one side of the collection chamber; A sliding guide rail is fixedly connected to the support frame. The sliding guide rail is inclined downward toward one end of the flipping positioning mechanism, and the sliding guide sleeve is slidably disposed on the outside of the sliding guide rail. A linear power component is installed on one side of the sliding guide sleeve to drive the sliding guide sleeve to move along the sliding guide rail; A transmission plate is vertically positioned at the drive end of the linear power component, and a guide hole is vertically opened on the inner side of the transmission plate. A sliding pin is fixedly connected to one side of the sliding guide rail, and the sliding pin is slidably positioned in the guide hole.

[0016] The technical solution provided by this invention has the following advantages compared with the prior art: This invention drives a rotating platform to rotate, causing a support plate to rotate upwards. This lifts the package from the top of the conveying assembly. When the support plate and the package are parallel to the support substrate, the rotating platform simultaneously rotates the support substrate. This allows a visual inspection unit at the bottom of the support substrate to inspect the printed pattern on the package. Because the support substrate rotates synchronously with the support plate, the visual inspection unit remains stationary relative to the support plate during the inspection process, ensuring inspection stability. Simultaneously, air is blown onto the package on top of the support plate through a second air hole at the bottom of the air chamber. This airflow flattens the top of the package, ensuring a flat top surface during inspection and preventing unevenness from affecting the inspection results. Attached Figure Description

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

[0018] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of one side of the support frame, the flipping positioning mechanism, and the follow-up vision inspection mechanism in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure on the other side of the support frame, the flipping positioning mechanism, and the follow-up vision inspection mechanism in an embodiment of the present invention; Figure 4 This is a schematic diagram of the cooperation structure between the support frame and the flipping positioning mechanism in an embodiment of the present invention; Figure 5 This is a schematic diagram of the support frame structure according to an embodiment of the present invention; Figure 6 for Figure 5 Enlarged structural diagram at point A; Figure 7 This is a schematic diagram of one side of the flipping positioning mechanism and the follow-up vision detection mechanism in an embodiment of the present invention; Figure 8 This is a schematic diagram of the bottom structure of the flipping positioning mechanism and the follow-up vision detection mechanism according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the front view structure of the flipping positioning mechanism and the follow-up vision detection mechanism according to an embodiment of the present invention; Figure 10 This is a three-dimensional structural diagram of the flipping positioning mechanism according to an embodiment of the present invention; Figure 11 for Figure 10 Enlarged structural diagram at point B; Figure 12 This is a cross-sectional structural schematic diagram of the flipping positioning mechanism according to an embodiment of the present invention; Figure 13 This is an exploded view of the flipping positioning mechanism according to an embodiment of the present invention; Figure 14 This is a schematic diagram of the bottom structure of the flipping positioning mechanism according to an embodiment of the present invention; Figure 15 This is a schematic diagram of the sorting mechanism according to an embodiment of the present invention; Figure 16 for Figure 15 A magnified structural diagram at point C.

[0019] The numbers in the diagram represent: 100, package; 1. Support frame; 11. Side plate; 12. Conveying assembly; 121. First conveyor belt; 122. Second conveyor belt; 123. Shaft frame; 124. Drive roller; 125. Driven roller; 126. Drive wheel; 127. Driven wheel; 13. Crossbeam; 14. Chain drive box; 15. First power component; 16. Anti-collision block; 17. Connecting block; 2. Tilting and positioning mechanism; 21. Load-bearing turntable; 22. Mounting plate; 23. Support plate; 24. Hollow shaft; 25. Second power component; 26. First transmission gear; 27. Transmission idle section; 28. Intermediate gear; 29. ​​Support slide; 210. Slide groove; 211. Limiting block; 212. Elastic component; 213. Guide surface; 214. Air guide pipe; 215. Vent pipe; 216. Air outlet; 217. Vent hole; 218. Air passage; 219. First air hole; 220. Guide component; 221. Connecting plate; 3. Follow-up vision inspection mechanism; 31. Supporting base plate; 32. Vision inspection component; 33. Air chamber; 34. Second air hole; 35. Connecting pipe; 36. Rotating arm; 37. Third power component; 38. Angle sensor; 39. Second transmission gear; 310. Reset block; 4. Sorting mechanism; 41. Collection bin; 42. Guide plate; 43. Sliding guide sleeve; 44. Sliding guide rail; 45. Fixed plate; 46. Linear power component; 47. Transmission vertical plate; 48. Guide hole; 49. Sliding pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] The present invention will be further described below with reference to embodiments.

[0022] Please see Figures 1-16 The present invention provides a technical solution: such as Figure 1 , Figure 2 and Figure 3As shown, the printed packaging pattern inspection device includes a carrier frame 1, a flipping and positioning mechanism 2, and a follow-up vision inspection mechanism 3. The flipping and positioning mechanism 2 is located inside the carrier frame 1 and is used to flip the package 100. The follow-up vision inspection mechanism 3 is rotatably located on the outside of the carrier frame 1. The follow-up vision inspection mechanism 3 is driven by the flipping and positioning mechanism 2 to rotate synchronously and automatically resets after inspection. The carrier frame 1 includes side plates 11 on both sides, and a conveying assembly 12 for conveying the package 100 is arranged between the side plates 11. The conveying assembly 12 is located on both sides of the flipping and positioning mechanism 2. The flipping and positioning mechanism 2 includes a carrier frame rotatably arranged between the side plates 11. The turntable 21 has a mounting plate 22 fixedly installed on its outer side. Multiple mounting plates 22 can be installed. When multiple mounting plates 22 are installed, they are evenly arranged around the axis of the turntable 21. Support plates 23 for supporting the package 100 are fixedly installed on the outer side of each mounting plate 22. The follow-up visual inspection mechanism 3 includes a support base plate 31 located above the support frame 1. A visual inspection element 32 is installed at the bottom of the support base plate 31. An air chamber 33 is fixedly installed on the inner side of the support base plate 31. A second air hole 34 is opened at the bottom of the air chamber 33. When the support base plate 31 is parallel to the support plate 23, it is driven by the turntable 21 to rotate synchronously with the support plate 23.

[0023] When inspecting the printed pattern on the package 100, the package 100 is fed to the top of the conveying assembly 12 and conveyed, causing the package 100 to move sequentially upwards towards the support plate 23. Then, by driving the rotating platform 21 to rotate, the support plate 23 is rotated upwards, causing the support plate 23 to lift the package 100 away from the top of the conveying assembly 12. As the support plate 23 moves towards the follow-up vision inspection mechanism 3, the vision inspection unit 32 on one side of the support substrate 31 inspects the printed pattern on the package 100 on the support plate 23; and the support plate 23 keeps the package 100 parallel to the support substrate 31. At the same time, the carrier turntable 21 synchronously drives the carrier substrate 31 to rotate, so that the vision inspection component 32 can continuously inspect the printed pattern on the packaging 100. Since the carrier substrate 31 rotates synchronously with the support plate 23, the vision inspection component 32 is stationary relative to the support plate 23 during the inspection process to ensure the stability of the inspection. At the same time, air is blown onto the packaging 100 on the top of the support plate 23 through the second air hole 34 at the bottom of the air chamber 33, and the airflow is used to flatten the top of the packaging 100 to ensure that the top surface of the packaging 100 is flat during the inspection process, and to prevent the unevenness of the inspection surface of the packaging 100 from affecting the inspection results.

[0024] In the above technical solution, the air chamber 33 is mainly located in the middle part of the supporting substrate 31, and air is supplied from the middle part to the periphery to ensure the effectiveness of smoothing the package 100.

[0025] After the package 100 has completed inspection, it is unloaded onto the top of the conveying assembly 12 on the other side of the carrying turntable 21 by the support plate 23 for conveying, so as to facilitate subsequent inspection of the other side of the package 100. It is worth noting that the conveying assembly 12 is also suitable for conveying rigid packaging such as boxes, and the support plate 23 and the follow-up vision inspection mechanism 3 are also suitable for flipping and inspecting boxes, which improves the versatility of the inspection device.

[0026] In order to ensure that packages of different sizes 100 can be fully conveyed to the top of the support plate 23, specifically, as follows: Figure 3 and Figure 4 As shown, the conveying assembly 12 includes a first conveyor belt 121 and a second conveyor belt 122. The length of the second conveyor belt 122 is greater than the length of the first conveyor belt 121. Several first conveyor belts 121 are evenly arranged, and the second conveyor belts 122 are located between two adjacent first conveyor belts 121. The first conveyor belts 121 and the second conveyor belts 122 are driven synchronously by external force. Several support plates 23 can be fixedly arranged on the outside of the same mounting plate 22. The support plates 23 are located between two adjacent second conveyor belts 122.

[0027] Specifically, such as 5 and Figure 6 As shown, the conveying assembly 12 also includes a shaft frame 123 fixedly disposed between the side plates 11. The shaft frames 123 are all fixedly connected to the side plates 11 through crossbeams 13. Several shaft frames 123 are provided corresponding to the second conveyor belt 122. A drive roller 124 and a driven roller 125 are rotatably disposed between two adjacent shaft frames 123 for driving the first conveyor belt 121 to drive the operation. A drive wheel 126 and a driven wheel 127 are rotatably disposed at both ends of the shaft frame 123 for driving the second conveyor belt 122 to drive the operation. The drive roller 124 and the drive wheel 126 are coaxially fixedly disposed. A chain drive box 14 is fixedly disposed on the outside of the side plate 11. The two drive ends of the chain drive box 14 are coaxially fixedly disposed with the drive roller 124 and the drive wheel 126 in the two conveying assemblies 12. A first power component 15 for driving the drive roller 124 to rotate is fixedly disposed on the outside of the chain drive box 14. The first power component 15 is a component with rotation output, such as a motor.

[0028] Then, the first power component 15 simultaneously drives the active roller 124 and the active wheel 126 in the two conveying components 12 to rotate, so that the active roller 124 cooperates with the driven roller 125 to drive the first conveyor belt 121 to drive the operation. At the same time, the active wheel 126 cooperates with the driven wheel 127 to drive the second conveyor belt 122 to drive the operation. After the package 100 is separated from the first conveyor belt 121, it can continue to move forward under the conveying action of the second conveyor belt 122. At this time, the support plate 23 on the outside of the carrying turntable 21 is located between two adjacent second conveyor belts 122 and is located below the package 100. When the package 100 is above the support plate 23, the support plate 23 is driven to rotate upward by the carrying turntable 21 to lift the package 100 away from the top of the second conveyor belt 122, so that packages 100 of different sizes can be conveyed to the position above the support plate 23 near the mounting plate 22, preventing the package 100 from separating from the support plate 23 due to insufficient contact. This method is also applicable to box packaging.

[0029] When the support plate 23 moves the package 100 away from the second conveyor belt 122, in order to prevent the second air hole 34 from blowing air into the package 100, the inspection surface will be uneven due to the lack of support between adjacent support plates 23. Figure 10 and Figure 11 As shown, each of the support plates 23 is provided with a support slide 29 on one side that is close to each other. The support slide 29 is slidably disposed inside the corresponding support plate 23. Each of the support plates 23 that is close to the follow-up vision inspection mechanism 3 is provided with a slide groove 210. A limiting block 211 that is fixedly connected to the support slide 29 is slidably disposed inside the slide groove 210. An elastic element 212 for applying elastic force to the support slide 29 is fixedly disposed inside the support plate 23. When the support slide 29 moves between two adjacent second conveyor belts 122, it is driven by external force to automatically slide into the interior of the support plate 23 to avoid the movement. The elastic element 212 is a spring or other element with deformation and recovery properties.

[0030] Specifically, each of the outer sides of the support slide 29 is provided with a guide surface 213, which is V-shaped. The guide surface 213 is located on the side of the support slide 29 near the bearing turntable 21. Each of the two adjacent guide surfaces 213 is provided with a guide member 220, which is V-shaped on one side. The guide member 220 is fixedly installed on the outer side of the connecting plate 221. The connecting plate 221 is fixedly installed on the bottom of the conveying assembly 12 to guide the support slide 29 to slide and avoid obstacles.

[0031] When the carrier turntable 21 drives the support plate 23 to rotate from below between two adjacent second conveyor belts 122, since the guide surface 213 is located on the side of the support slide 29 closer to the carrier turntable 21, the guide surface 213 on the side of the support slide 29 will preferentially contact the guide member 220. Furthermore, the inclined surfaces of the guide member 220 and the guide surface 213 cooperate to cause the two adjacent support slides 29 to move away from each other, thereby compressing the elastic member 212 inside the support plate 23. When the support plate 23 drives the package 100 away from the second... After the top of the conveyor belt 122, the guide surface 213 and the guide member 220 separate from each other. Under the action of the elastic member 212, the support slide 29 slides back to the outside of the support plate 23, and then supports the bottom of the package 100 before the second air hole 34 blows air into it (in reality, the distance between the support slide 29 and the top of the support plate 23 is about 1-2mm, which is the wall thickness of the support plate 23, and the resulting unevenness of the support surface can be ignored). On this basis, the package 100 on the top of the support plate 23 can remain flat when the second air hole 34 blows air into it.

[0032] After the package 100 completes inspection, the follow-up vision inspection mechanism 3 automatically resets and releases the second air hole 34 to blow air onto the package 100 and smooth it out. When the package 100 rotates and is located at the bottom of the support plate 23, to prevent the package 100 from separating from the support plate 23 at a high position, causing unstable material dropping (such as floating or shifting), ... Figure 12 and Figure 13 As shown, air passages 218 are provided on the inner side of the support plate 23. The air passages 218 are located between two adjacent support slides 29. The top of the air passages 218 near the follow-up vision inspection mechanism 3 is provided with first air holes 219. The first air holes 219 adsorb the package 100 after the inspection is completed and blow air on the package 100 when unloading.

[0033] In the above technical solution, as the support plate 23 moves toward the follow-up vision inspection mechanism 3, the air chamber 33 blows air onto the package 100 to smooth it out. Then, the smoothed package 100 is inspected by the vision inspection component 32. During this process, the support plate 23 is not tilted much, and the package 100 is less affected by gravity. As the tilt of the support plate 23 increases, the support plate 23 gradually approaches the support substrate 31, so that the package 100 comes into contact with the support substrate 31 or the air chamber 33, ensuring the stability of the package 100's posture during the flipping process.

[0034] For some printed products, high-precision inspection and identification of local areas of the packaging 100 is required to determine whether there are minor defects. In this case, the printed pattern can be continuously inspected during the synchronous rotation of the support plate 23 and the carrier substrate 31. That is, as the support plate 23 gradually approaches the carrier substrate 31, the support plate 23 drives the packaging 100 to contact the carrier substrate 31 / air chamber 33, so that the support plate 23 and the carrier substrate 31 / air chamber 33 fix the packaging 100. During this process, the vision inspection component 32 is aligned with the local area to be inspected with high precision. Since the support plate 23 and the carrier substrate 31 move synchronously, the vision inspection component 32 is relatively stationary with respect to the packaging 100. The vision inspection component 32 is always aligned with the inspection surface of the packaging 100 at a vertical, equidistant, and fixed angle, which can achieve fixed focus, fixed exposure, and high-resolution continuous imaging, and can clearly capture the detailed features of minor defects. At the same time, continuous inspection can sample the same inspection area multiple times and compare multiple frames, further improving the accuracy of defect identification and avoiding missed detection due to accidental errors in single-frame imaging. In this case, attention should be paid to the size and position of the air chamber 33 to avoid obstruction of local areas requiring high-precision detection.

[0035] Specifically, such as Figure 7 , Figure 8 and Figure 9 As shown, a hollow shaft 24 is fixedly installed on the inner side of the bearing turntable 21. Both ends of the hollow shaft 24 are rotatably connected to the side plate 11. One end of the hollow shaft 24 has a sealed structure and is fixedly connected to the drive end of the second power component 25. The second power component 25 is fixedly installed on the outer side of the side plate 11. A vent pipe 215 is rotatably installed on the other end of the hollow shaft 24. The vent pipe 215 is fixedly installed on the outer side of the side plate 11. A guide pipe 214 is fixedly installed on one end of the vent pipe 215. The guide pipe 214 is rotatably installed on the inner side of the hollow shaft 24. An air outlet 216 is opened on the outer side of the guide pipe 214 between the packaging 100 after inspection and the unloading position. A vent hole 217 is opened on the outer side of the bearing turntable 21 corresponding to the air passage 218. The second power component 25 is a component with rotation output function, such as a motor.

[0036] After the package 100 completes the inspection, the rotating platform 21 drives the support plate 23 to rotate to a certain angle, and the rotating platform 21 drives the vent 217 to be within the ventilation range of the vent 216. If the support plate 23 continues to rotate, the package 100 will be located at the bottom of the support plate 23. At this time, the air inside the vent pipe 215 is sucked out by the external equipment, so that the vent 216 sucks out the air inside the air passage 218 through the vent 217, and then the air passage 218 passes through the first vent 219. The package 100 at the bottom of the support plate 23 is adsorbed; as the support plate 23 moves the package 100 closer to the top of the second conveyor belt 122 on the other side, the vent 217 is always within the range of the air outlet 216 to ensure the stability of the package 100's posture during the flipping process. The adsorption stops when the package 100 is close to the top of the second conveyor belt 122, so that the package 100 falls to the top of the second conveyor belt 122 over a short distance for conveying, ensuring the stability of the package 100's posture after the flipping is completed.

[0037] Furthermore, in order to prevent the packaging 100 from being unable to fall quickly and smoothly due to atmospheric pressure, air can be blown into the vent pipe 215 through external equipment, so that the first air hole 219 blows air out and blows the packaging 100 toward the top of the second conveyor belt 122, so as to ensure that the falling action is carried out smoothly.

[0038] In order to achieve the synchronous driving action of the support plate 23 on the support plate 31 when it drives the package 100 to rotate parallel with the support plate 31, such as... Figure 7 , Figure 8 and Figure 14 As shown, a first transmission gear 26 is fixedly installed on the outer side of the hollow shaft 24. A transmission idle section 27 is installed on the outer side of the first transmission gear 26. An intermediate gear 28 is meshed on the outer side of the first transmission gear 26. The intermediate gear 28 is rotatably installed on both sides of the side plate 11. A second transmission gear 39 is meshed on the outer side of the intermediate gear 28 on the other side of the side plate 11. The second transmission gear 39 is coaxially installed with the first transmission gear 26. A rotating arm 36 is fixedly installed on the outer side of the second transmission gear 39. The other end of the rotating arm 36 is rotatably installed on the outer side of the support base plate 31. When the first transmission gear 26 and the intermediate gear 28 are engaged and disengaged, the rotating arm 36 is automatically reversed and reset by external force.

[0039] When the second power component 25 drives the hollow shaft 24 to rotate, the hollow shaft 24 drives the bearing turntable 21 and the support plate 23 on the outside of the bearing turntable 21 to rotate. When the support plate 23 drives the package 100 away from the second conveyor belt 122, the transmission idle section 27 on the outside of the first transmission gear 26 passes the outside of the intermediate gear 28, allowing the support plate 23 to rotate independently. When the support plate 23 drives the package 100 to be parallel to the bearing base plate 31, the transmission idle section 27 passes completely through the intermediate gear 28, causing the first transmission gear 26 to mesh with the intermediate gear 28, thereby causing the first transmission gear 26 to drive the intermediate gear 28 to rotate, and then drive the second transmission gear 39 on the outside of the rotating arm 36 to rotate through another coaxially arranged intermediate gear 28. After the inspection, the first transmission gear 26 disengages from the intermediate gear 28. At this time, the support plate 23 can drive the package 100 to continue to transfer to the next process, while the rotating arm 36 drives the bearing base plate 31 to rotate in the opposite direction and automatically reset, waiting to inspect the next package 100.

[0040] To achieve automatic reset of the bearing plate 31 driven by the rotating arm 36, such as Figure 8 and Figure 9 As shown, a reset block 310 is fixedly installed at the bottom of each rotating arm 36, which is used to drive the rotating arm 36 to reverse and reset by its own weight; a third power component 37 for driving the bearing substrate 31 to rotate is fixedly installed on the outside of one of the rotating arms 36, which is a component with rotation output function such as a motor; an angle sensor 38 for detecting the rotation angle of the bearing substrate 31 is fixedly installed on the outside of the other rotating arm 36, and a connecting pipe 35 for connecting to an external air blowing device is fixedly installed on the outside of the air chamber 33; anti-collision blocks 16 are fixedly installed on the outside of the side plate 11 corresponding to the reset block 310, and the anti-collision blocks 16 are fixedly installed on the outside of the side plate 11 through connecting blocks 17.

[0041] During the testing process, when the rotating arm 36 drives the carrier plate 31 to rotate along with the support plate 23, the rotating arm 36 drives the bottom reset block 310 to rotate synchronously. When the first transmission gear 26 and the intermediate gear 28 disengage, the second transmission gear 39 can rotate on its own because it is not restricted by external force. At this time, the gravity of the reset block 310 serves as the only external force, and the rotating arm 36 can be reversed and reset by relying on the gravity of the reset block 310. In addition, in order to prevent the rotating arm 36 from interfering with the support plate 23 when it drives the carrier plate 31 to rotate in the opposite direction for reset, the testing work needs to be completed before the first transmission gear 26 and the intermediate gear 28 disengage. Before disengagement, the third power component 37 drives the carrier plate 31 to rotate upward, so that the carrier plate 31 rotates to the side of the support plate 23 away from the carrier turntable 21. Then the rotating arm 36 can drive the carrier plate 31 to reverse and reset from the outside of the support plate 23.

[0042] To facilitate the immediate sorting of 100 non-conforming packages after each inspection, such as Figure 1 , Figure 14 , Figure 15 and Figure 16 As shown, two carrier frames 1 are continuously arranged, and a flipping positioning mechanism 2 is provided on the inner side of each carrier frame 1, and a follow-up visual inspection mechanism 3 is provided on the outer side of the carrier frame 1 corresponding to the flipping positioning mechanism 2; the aforementioned printed packaging pattern inspection device also includes a sorting mechanism 4 located above the two carrier frames 1, which is used to sort unqualified packaging 100 after inspection. The sorting mechanism 4 includes a collection bin 41, and a guide plate 42 is fixedly arranged on the side of the collection bin 41 near the support plate 23. After the packaging 100 is inspected, the collection bin 41 is driven by external force to move towards the outer side of the support plate 23, and the guide plate 42 is located at the lower half of the packaging 100.

[0043] Specifically, sliding guide sleeves 43 are fixedly installed on both sides of the collection chamber 41, and sliding guide rails 44 are slidably installed on the inner side of the sliding guide sleeves 43. The end of the sliding guide rails 44 near the flipping positioning mechanism 2 is inclined downward. The sliding guide rails 44 are fixedly installed on the outer side of the side plate 11 by the bottom fixing plate 45. A linear power component 46 for driving the sliding guide sleeves 43 to slide is fixedly installed on the outer side of the fixing plate 45. The linear power component 46 is a component with linear output function such as a cylinder, electric push rod and linear module. A transmission plate 47 is fixedly installed at the driving end of the linear power component 46. A guide hole 48 is vertically opened on the inner side of the transmission plate 47. A sliding pin 49 is slidably installed on the inner side of the guide hole 48. The sliding pin 49 is fixedly connected to the sliding guide rail 44, and the width of the guide hole 48 is greater than the diameter of the sliding pin 49.

[0044] When package 100 is determined to be unqualified after inspection, the linear power component 46 on the outside of the fixed plate 45 drives the transmission plate 47 to move horizontally. This, in turn, drives the sliding pin 49 to move through the guide hole 48 on the inside of the transmission plate 47. As the sliding pin 49 moves, it causes the sliding guide sleeve 43 to move downwards along the sliding guide rail 44, causing the guide plate 42 on one side of the collection bin 41 to move towards the lower half of the package 100. Then, combined with the air blowing through the first air hole 219, the upper half of the unqualified package 100 is blown into the collection bin 41. When the collection bin 41 moves away from the support plate 23 under the drive of the linear power component 46, the package 100 is located inside the collection bin 41. Part of the package 100 will slide down along the guide plate 42, allowing the remaining part of the package 100 to automatically move into the collection bin 41 for sorting. During the inspection process, the collection bin 41 is located diagonally above the flipping positioning mechanism 2 and above the support frame 1, preventing the sorting mechanism 4 from interfering with the inspection and conveying of the package 100. Furthermore, since the width of the guide hole 48 is smaller than the diameter of the sliding pin 49, as the guide plate 42 approaches the support plate 23, the guide plate 42 will preferentially contact the support plate 23 and adhere to the support plate 23 by its own gravity, reducing the driving accuracy of the linear power component 46 on the collection bin 41 and preventing the guide plate 42 from forming overpressure with the support plate 23.

[0045] In summary, when the printed packaging pattern detection device described in this application is in use, firstly, the first power member 15 simultaneously drives the active roller 124 and the active wheel 126 in the two conveying components 12 to rotate, so that the active roller 124 cooperates with the driven roller 125 to drive the first conveyor belt 121 to run, and at the same time, the active wheel 126 cooperates with the driven wheel 127 to drive the second conveyor belt 122 to run. Then, the package 100 is fed to the top of the first conveyor belt 121 and the second conveyor belt 122 for conveying, so that the package 100 moves sequentially above the support plate 23. Then, the second power member 25 drives the hollow shaft 24 to rotate, and the hollow shaft 24 drives the bearing turntable 21 and the support plate 23 on the outside of the bearing turntable 21 to rotate. When the support plate 23 drives the package 100 away from the second conveyor belt 122, the transmission idle section 27 on the outside of the first transmission gear 26 passes the outside of the intermediate gear 28, so that the support plate 23 rotates independently.

[0046] It should be noted that when the support plate 23 moves the package 100 away from the top of the second conveyor belt 122, the guide surface 213 and the guide member 220 separate from each other. Under the action of the elastic member 212, the support slide 29 slides back to the outside of the support plate 23, and then supports the bottom of the package 100 before the second air hole 34 blows air into it. Then, air is blown into the package 100 on the top of the support plate 23 through the second air hole 34 at the bottom of the air chamber 33, and the airflow is used to flatten the top of the package 100 to ensure that the top surface of the package 100 is flat during the inspection process.

[0047] When the support plate 23 drives the package 100 to be parallel with the support base plate 31, the transmission idle section 27 completely passes through the intermediate gear 28, so that the first transmission gear 26 meshes with the intermediate gear 28, thereby causing the first transmission gear 26 to drive the intermediate gear 28 to rotate, and then drives the second transmission gear 39 on the outside of the rotating arm 36 to rotate through another coaxially arranged intermediate gear 28.

[0048] After the package 100 completes the inspection, the first transmission gear 26 and the intermediate gear 28 disengage. The second transmission gear 39 can rotate on its own because it is not restricted by external force. At this time, the gravity of the reset block 310 serves as the only external force, and the rotating arm 36 can be reversed and reset by relying on the gravity of the reset block 310. In order to prevent the rotating arm 36 from interfering with the support plate 23 when it drives the carrier plate 31 to rotate in the opposite direction for reset, the inspection work needs to be completed before the first transmission gear 26 and the intermediate gear 28 disengage. Before disengagement, the carrier plate 31 is driven to rotate upward by the third power component 37, so that the carrier plate 31 is moved to the side of the support plate 23 away from the carrier turntable 21. Then the rotating arm 36 can drive the carrier plate 31 to reverse and reset from the outside of the support plate 23.

[0049] Subsequently, the carrier turntable 21 drives the support plate 23 to rotate to a certain angle, and the carrier turntable 21 drives the vent 217 to be within the vent range of the air outlet 216. At this time, the air inside the vent pipe 215 is sucked out by the external equipment, so that the air outlet 216 sucks out the air inside the air passage 218 through the vent 217. Then, the air passage 218 adsorbs the package 100 at the bottom of the support plate 23 through the first air hole 219, preventing the package 100 from separating from the support plate 23 at a high position and causing unstable material falling.

[0050] Furthermore, when package 100 is determined to be unqualified after inspection, the linear power component 46 on the outside of the fixed plate 45 drives the transmission plate 47 to move horizontally, and then drives the sliding pin 49 to move through the guide hole 48 on the inside of the transmission plate 47. When the sliding pin 49 moves, it drives the sliding guide sleeve 43 to move downward along the sliding guide rail 44, so that the guide plate 42 on one side of the collection bin 41 moves towards the lower half of the package 100. Then, in conjunction with the first air hole 219, air can blow the upper half of the unqualified package 100 into the collection bin 41. When the collection bin 41 moves away from the support plate 23 under the drive of the linear power component 46, the part of the package 100 located inside the collection bin 41 will slide down along the guide plate 42, so that the remaining part of the package 100 will automatically move into the collection bin 41 for sorting.

[0051] It is worth noting that the printed packaging pattern detection device described in this application has the following advantages compared to the prior art: In the pattern inspection stage, the top surface of the package 100 is pre-flattened by blowing air through the second air hole 34, which effectively eliminates the unevenness of the inspection surface of the package 100, ensuring that the visual inspection component 32 can obtain a clear and distortion-free pattern image, greatly improving the accuracy of inspection and reducing the misjudgment rate caused by uneven materials.

[0052] The rotation design and reset mechanism of the follow-up vision inspection mechanism 3 work closely together. After the inspection is completed, it automatically reverses and resets by gravity, eliminating the need for additional complex drive devices and simplifying the overall structure. At the same time, by reasonably setting the timing of the completion of the inspection and the engagement and disengagement, it avoids motion interference between the inspection components and the conveying components, ensuring the stability and safety of the equipment operation.

[0053] For the sorting of non-conforming products, a combination of adsorption and air blowing is used. First, the adsorption mechanism stabilizes the non-conforming package 100 to prevent unstable material falling when it falls from a high position. Then, air blowing and tilting guide structure are used to accurately guide the package 100 into the sorting channel, which realizes efficient and accurate sorting of non-conforming products, reduces manual intervention and improves the efficiency of automated production.

[0054] During the conveying process, a support slide 29 is slidably set inside the support plate 23, which, together with the bottom guide 220, effectively supports the bottom of the package 100 before air blowing and leveling, avoiding unevenness of the material due to uneven force during air blowing, and further ensuring the flatness accuracy of the material during testing.

[0055] The components of the overall device work closely together, forming a continuous automated process from the conveying and leveling of package 100, pattern detection, and sorting of defective products. The smooth connection between each link reduces downtime in the production process, effectively improves the overall efficiency of printing and packaging pattern detection, and meets the needs of modern production for high-speed and high-precision detection.

[0056] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. 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 of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A printing and packaging pattern detection device, characterized in that, include: The support frame, arranged longitudinally, is used to support and install various components and mechanisms; The support frame is equipped with a conveyor assembly for transporting the packaged items; A flipping and positioning mechanism is set inside the carrier frame. The flipping and positioning mechanism includes a carrier turntable, which is rotatably set inside the carrier frame. A support plate is connected to the outside of the carrier turntable, and the support plate can support the package conveyed by the conveying component. A follow-up visual inspection mechanism is rotatably mounted on one side of a support frame. The follow-up inspection mechanism includes a support base plate mounted above the support frame. A visual inspection component is mounted on one side of the support base plate, and an air chamber is mounted on one side of the visual inspection component. A second air hole is opened on one side of the air chamber. In the inspection state, the second air hole smooths the package on the support plate.

2. The printing and packaging pattern detection device according to claim 1, characterized in that, The conveying assembly includes a first conveyor belt and a second conveyor belt, wherein the length of the second conveyor belt is greater than the length of the first conveyor belt; Several first conveyor belts are provided, and the first and second conveyor belts are arranged alternately and synchronously. When the support plate supports the package conveyed by the conveying assembly, the support plate is located between two adjacent second conveyor belts and is arranged corresponding to the first conveyor belt.

3. The printing and packaging pattern detection device according to claim 1, characterized in that, Each of the support plates is slidably provided with a support slide on one side that is close to the other, and the support slide can extend out of the corresponding support plate. A groove is provided on one side of the support plate near the support turntable. A limit block is slidably arranged in the groove. The limit block is connected to the support slide table, and an elastic element is connected to the side of the limit block away from the support slide table.

4. The printing and packaging pattern detection device according to claim 3, characterized in that, The outer side of each support slide is provided with a guide surface, which is V-shaped. A guide is provided at the bottom of the support frame corresponding to one side of the support turntable. One end of the guide is V-shaped, so that when the guide surface abuts the guide, the support slide moves toward the inside of the support plate.

5. The printing and packaging pattern detection device according to claim 1, characterized in that, Each of the support plates is provided with an air passage, and a first air hole is provided on one side of the air passage, with the first air hole facing the follow-up vision detection mechanism. Ventilation holes are provided on the outer side of the rotating platform corresponding to the air passage.

6. The printing and packaging pattern detection device according to claim 5, characterized in that, The inner side of the bearing turntable is provided with a hollow shaft, one end of which is a sealed structure and connected to a second power component; A vent pipe is rotatably provided at the other end of the hollow shaft. A guide pipe is fixedly provided at one end of the vent pipe. The guide pipe is rotatably arranged in the hollow shaft, and an air outlet is opened on the outside of the guide pipe.

7. The printing and packaging pattern detection device according to claim 6, characterized in that, A first transmission gear is fixedly provided at one end of the hollow shaft, and the first transmission gear includes a transmission idle section. The hollow shaft is rotatably connected to a rotating arm via a first transmission gear, and the other end of the rotating arm is rotatably disposed on the outside of the supporting base plate.

8. The printing and packaging pattern detection device according to claim 7, characterized in that, A reset block is fixedly provided at the bottom end of the rotating arm, which is used to drive the rotating arm and the supporting base plate to reverse and reset. One of the rotating arms is connected to a third power component for driving the rotation of the supporting substrate.

9. The printing and packaging pattern detection device according to claim 1, characterized in that, It also includes a sorting mechanism set above the support frame, the sorting mechanism including a collection bin, and a guide plate is provided on one side of the collection bin; after the package is inspected, the collection bin moves toward the support plate side, and the package enters the collection bin from the guide plate.

10. The printing and packaging pattern detection device according to claim 9, characterized in that, The sorting mechanism also includes: A sliding guide sleeve is fixedly installed on one side of the collection chamber; A sliding guide rail is fixedly connected to the support frame. The sliding guide rail is inclined downward toward one end of the flipping positioning mechanism, and the sliding guide sleeve is slidably disposed on the outside of the sliding guide rail. A linear power component is installed on one side of the sliding guide sleeve to drive the sliding guide sleeve to move along the sliding guide rail; A transmission plate is vertically positioned at the drive end of the linear power component, and a guide hole is vertically opened on the inner side of the transmission plate. A sliding pin is fixedly connected to one side of the sliding guide rail, and the sliding pin is slidably positioned in the guide hole.

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