Cigarette case quality detection device and method based on image vision

Abstract

The invention relates to the technical field of detection, discloses a cigarette case quality detection device and method based on image vision, and solves the problem that the bottom of a cigarette case is in contact with a moving mechanism, so that the local part of the cigarette case is shielded, and the local part of the cigarette case cannot be effectively detected. A moving mechanism used for driving cigarette cases to move is arranged on the detection rack, a rotating frame is arranged above the detection rack, two side plates are fixedly installed on the rotating frame, clamping plates are arranged on the sides, close to each other, of the two side plates, a rotating shaft is arranged above the detection rack, a rotating sleeve is arranged outside the rotating shaft in a sleeving mode, and the rotating frame is fixedly connected with the rotating sleeve; the two ends of the rotating sleeve are rotationally sleeved with first supporting parts correspondingly. According to the cigarette case overturning device, different positions on a cigarette case can be detected, overturning of the cigarette case can be directly achieved on one conveying belt, the application range is widened, the cigarette case is effectively detected, and the accuracy of detection data is improved.

Description

Technical Field

[0001] The present invention belongs to the field of detection technology, and in particular relates to a cigarette box quality detection device and method based on image vision. Background Art

[0002] During the production of cigarette boxes, deformation, damage, and poor printing quality often occur due to factors such as materials, molds, machines, and production processes. The appearance of cigarette boxes affects the user's perception of cigarettes. Therefore, before using cigarette boxes, their appearance needs to be inspected to improve their appearance quality. Through searching the prior art, it was found that the Chinese patent with the announcement number CN219065299U discloses a visual image acquisition device and detection equipment for plate edge banding quality detection. The acquisition device can capture images of the plate after edge banding to obtain a judgment basis for the plate edge banding quality detection; two cameras are used to capture images of the left half and the right half respectively to avoid deformation of the outer contour of the plate in the image. Through searching the prior art, it was found that in the process of driving the cigarette box to move by the moving mechanism, the bottom of the cigarette box contacts the moving mechanism, which will cause partial obstruction of the cigarette box, resulting in cigarette Part of the box cannot be effectively inspected, resulting in inaccurate inspection data. Chinese patent publication number CN215437137U discloses a cigarette box conveyor belt with a cigarette box flipping mechanism. The two flipping mechanisms are used to flip the cigarette boxes 90 degrees in sequence to complete the entire flip of the cigarette box, so that the bottom of the cigarette box can be inspected. However, it is worth considering that two flipping mechanism structures need to be set up to realize the flipping of the cigarette box, and the two flipping mechanism structures need to be set up on two conveyor belts respectively, which is not convenient for completing the flipping of the cigarette box directly on one conveyor belt, resulting in a small scope of application.

[0003] Therefore, in order to solve the above problems, a related facility that is more in line with usage needs needs to emerge. Summary of the Invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a cigarette box quality inspection device and method based on image vision, which effectively solves the problem in the above background technology that the two flipping mechanism structures need to be respectively set on two conveyor belts, which is inconvenient to complete the flipping of the cigarette box directly on one conveyor belt, resulting in a smaller scope of application.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a cigarette box quality inspection device based on image vision, comprising a detection frame, a moving mechanism for driving the cigarette box to move provided on the detection frame, a rotating frame provided above the detection frame, two side plates fixedly mounted on the rotating frame, a clamping plate provided on each adjacent side of the two side plates, a rotating shaft provided above the detection frame, a rotating sleeve provided on the outer surface of the rotating shaft, and the rotating frame and the rotating sleeve fixedly connected; The two ends of the rotating sleeve are respectively provided with a first support part, and the two ends of the rotating shaft are respectively provided with a support frame, and the first support part and the support frame are fixedly connected to the detection frame, the detection frame is installed with a driver for driving the rotating shaft to rotate, the rotating shaft is installed with a flip adjustment structure for adjusting the position of the splint, and the detection frame is installed with an image visual detection mechanism for detecting cigarette boxes.

[0006] Preferably, the flip adjustment structure includes a rotating plate fixedly mounted on both ends of the rotating shaft, a movable plate passing through the side plate, an elastic member adapted to the clamping plate is installed on the movable plate, a push block is fixedly connected to the side of the rotating plate facing the movable plate, and an inclined surface adapted to the movable plate is provided on the push block, a pressing unit adapted to the movable plate is installed on the side plate, and a magnetic attraction mechanism adapted to the rotating plate and the detection frame is installed on the side plate.

[0007] Preferably, the magnetic attraction mechanism includes iron plates fixedly mounted on the sides away from each other of the two side plates, a first magnet block and a second magnet block are fixedly connected to both sides of the detection frame, and the top of the first magnet block is in contact with the bottom of the iron plate, and a third magnet block and a fourth magnet block are fixedly connected to the sides where the two rotating plates are close to each other, and the iron plate is located between the third magnet block and the fourth magnet block.

[0008] Preferably, the elastic member includes a slider fixedly mounted on the side of the splint facing the movable plate, a sliding groove is provided on the side of the movable plate facing the splint, and the end of the slider away from the splint is located in the sliding groove, and the slider and the inner wall of the sliding groove are connected by a plurality of first compression springs.

[0009] Preferably, the pressing unit includes a first support plate fixedly mounted on the movable plate, the side plate and the first support plate are connected via a plurality of second compression springs, and the movable plate is in contact with an inclined surface on the push block.

[0010] Preferably, the driver includes a first servo motor fixedly mounted on one of the support frames, an output end of the first servo motor is fixedly connected to a first bevel gear, and a second bevel gear meshing with the first bevel gear is fixedly mounted on the rotating shaft.

[0011] Preferably, the moving mechanism includes a driving roller and a driven roller rotatably mounted on the detection frame, and the driving roller and the driven roller are connected by a conveyor belt, the detection frame is fixedly mounted with a second servo motor, and the output end of the second servo motor is fixedly connected to the driving roller, a plurality of supporting rollers are rotatably connected to the detection frame, and the conveyor belt is sleeved on the outside of the supporting rollers.

[0012] Preferably, two correction plates are provided above the detection frame, and a second support portion is provided on the side away from the two correction plates. The second support portion is fixedly connected to the detection frame, and a hydraulic telescopic rod is fixedly installed on the second support portion, and the telescopic end of the hydraulic telescopic rod is fixedly connected to the correction plate.

[0013] Preferably, the image visual detection mechanism includes a first mounting seat and a second mounting seat arranged above the detection frame, and the rotating frame is located between the first mounting seat and the second mounting seat, the bottom of the first mounting seat and the second mounting seat are fixedly connected with a first detection camera, the first mounting seat is fixedly installed with four second detection cameras, and the second detection camera is tilted, and two second support plates are fixedly connected to the first mounting seat and the second mounting seat, a screw rod passes through the second support plate, the bottom end of the screw rod and the detection frame are connected by a connecting plate, and two nuts are provided on the outside of the screw rod, and the two adjacent nuts are respectively in contact with the top and bottom of the second support plate.

[0014] The present invention also provides a cigarette box quality detection method based on image vision, using the cigarette box quality detection device based on image vision as described above, comprising the following steps: Step 1: The cigarette box is driven to move by the moving mechanism. When the cigarette box moves to the first inspection station, the top and four sides of the cigarette box are inspected by the image visual inspection mechanism; Step 2: When the cigarette box moves from the first inspection station to the flipping station, the cigarette box moves between the two clamping plates. The driver drives the rotating shaft to rotate. The rotating shaft drives the two clamping plates to clamp the cigarette box through the flip adjustment structure. Then, the rotating shaft drives the clamping plates, the rotating frame and the rotating sleeve to rotate synchronously. Step 3: When the rotating frame rotates 180 degrees, the flip adjustment structure drives the clamping plate to no longer contact the cigarette box, and drives the rotating shaft to rotate in the opposite direction through the driver, so that the rotating frame and the clamping plate rotate in the opposite direction to the initial position, completing the flipping of the cigarette box; Step 4: When the cigarette box moves from the flipping station to the second inspection station, the bottom of the cigarette box that was not inspected originally rotates upward, and the original bottom of the cigarette box is inspected by the image vision inspection mechanism.

[0015] Compared with the prior art, the present invention has the following beneficial effects: When the cigarette box moves from the first inspection station to the flipping station, the cigarette box moves between the two clamps, and the rotating shaft is driven to rotate by the driver. The rotating shaft drives the two clamps to clamp the cigarette box through the flipping adjustment structure, and then the rotating shaft drives the clamps, rotating frame and rotating sleeve to rotate synchronously. When the rotating frame rotates one hundred and eighty degrees, the flipping adjustment structure drives the clamps to no longer contact the cigarette box, and drives the rotating shaft to rotate in the opposite direction through the driver, so that the rotating frame and clamps rotate in the opposite direction to the initial position, completing the flipping of the cigarette box. When the cigarette box moves from the flipping station to the second inspection station, the bottom of the cigarette box that was not originally inspected rotates to the top, and the original bottom of the cigarette box is inspected by the image visual inspection mechanism. Different positions on the cigarette box can be inspected, and the cigarette box can be flipped directly on a conveyor belt, which increases the scope of application, enables the cigarette boxes to be effectively inspected, and improves the accuracy of the inspection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0017] In the attached figure: Figure 1 It is a schematic structural diagram of the present invention as a whole; Figure 2 For the present invention Figure 1 A partial enlarged schematic diagram of point A in the middle; Figure 3 This is a schematic structural diagram of a local portion of a detection rack according to the present invention; Figure 4 Schematic diagram of the structure of the driver of the present invention; Figure 5 It is a structural schematic diagram of the rotating frame of the present invention; Figure 6 Schematic diagram of the structure of the pressing unit of the present invention; Figure 7 This is a schematic diagram of the structure of the elastic member of the present invention; Figure 8 It is a structural schematic diagram of the first mounting base of the present invention.

[0018] In the figure: 1. Detection frame; 2. Rotating frame; 3. Side plate; 4. Clamping plate; 5. Rotating sleeve; 6. First support portion; 7. Rotating shaft; 8. Support frame; 9. Rotating plate; 10. Movable plate; 11. Push block; 12. Iron plate; 13. First magnet block; 14. Second magnet block; 15. Slider; 16. Slide; 17. First compression spring; 18. First support plate; 19. Second compression spring; 20. First servo motor; 21. First bevel gear; 22. Second bevel gear; 23. Third magnet block; 24. Fourth magnet block; 25. Conveyor belt; 26. Driving roller; 27. Driven roller; 28. Second servo motor; 29. ​​Support roller; 30. Correction plate; 31. Second support portion; 32. Hydraulic telescopic rod; 33. First mounting seat; 34. Second mounting seat; 35. First detection camera; 36. Second detection camera; 37. Second support plate; 38. Screw; 39. Connecting plate; 40. Nut. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1, by Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The present invention includes a detection frame 1, which is provided with a moving mechanism for driving the movement of the cigarette box. A rotating frame 2 is provided above the detection frame 1. The rotating frame 2 is fixedly mounted with two side plates 3. The two side plates 3 are each provided with a clamping plate 4 on the side close to each other. A rotating shaft 7 is provided above the detection frame 1. The outer sleeve of the rotating shaft 7 is provided with a rotating sleeve 5. The rotating frame 2 and the rotating sleeve 5 are fixedly connected. The two ends of the rotating sleeve 5 are respectively provided with a first support portion 6 for rotation, and the two ends of the rotating shaft 7 are respectively provided with a support frame 8 for rotation, and the first support portion 6 and the support frame 8 are both fixedly connected to the detection frame 1, and the detection frame 1 is equipped with a driver for driving the rotating shaft 7 to rotate, and the rotating shaft 7 is equipped with a flip adjustment structure for adjusting the position of the clamping plate 4, and the detection frame 1 is equipped with an image visual detection mechanism for detecting cigarette boxes; when the cigarette box moves from the first detection station to the flip station, the cigarette box moves between the two clamping plates 4, and the rotating shaft 7 is driven to rotate by the driver, and the rotating shaft 7 drives the two clamping plates 4 to clamp the cigarette box through the flip adjustment structure , then the rotating shaft 7 drives the clamping plate 4, the rotating frame 2 and the rotating sleeve 5 to rotate synchronously. When the rotating frame 2 rotates 180 degrees, the flip adjustment structure drives the clamping plate 4 to no longer contact the cigarette box, and drives the rotating shaft 7 to rotate in the opposite direction through the driver, so that the rotating frame 2 and the clamping plate 4 rotate in the opposite direction to the initial position, completing the flipping of the cigarette box. When the cigarette box moves from the flipping station to the second inspection station, the bottom of the cigarette box that has not been inspected before rotates to the top, and the original bottom of the cigarette box is inspected by the image visual inspection mechanism. Different positions on the cigarette box can be inspected, so that the cigarette box is effectively inspected, and the accuracy of the inspection data is improved.

[0021] Example 2, based on Example 1, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7The flip adjustment structure includes a rotating plate 9 fixedly mounted on both ends of the rotating shaft 7, a movable plate 10 passing through the side plate 3, and an elastic member adapted to the clamping plate 4 is installed on the movable plate 10. The rotating plate 9 is fixedly connected to a push block 11 on the side facing the movable plate 10, and the push block 11 is provided with an inclined surface adapted to the movable plate 10, and the side plate 3 is installed with a pressing unit adapted to the movable plate 10, and the side plate 3 is installed with a magnetic attraction mechanism adapted to the rotating plate 9 and the detection frame 1, respectively. The magnetic attraction mechanism includes an iron plate 12 fixedly mounted on the two side plates 3 away from each other, and both sides of the detection frame 1 are fixedly connected with a first magnet block 13 and a second magnet block 14, and the top of the first magnet block 13 is in contact with the bottom of the iron plate 12, and the side where the two rotating plates 9 are close to each other is fixedly connected with a third magnet block 23 and a fourth magnet block 24, and The iron plate 12 is located between the third magnet block 23 and the fourth magnet block 24. The elastic member includes a slider 15 fixedly mounted on the side of the splint 4 facing the movable plate 10. A slide groove 16 is provided on the side of the movable plate 10 facing the splint 4, and the end of the slider 15 away from the splint 4 is located in the slide groove 16. The slider 15 and the inner wall of the slide groove 16 are connected by a plurality of first compression springs 17. The pressing unit includes a first support plate 18 fixedly mounted on the movable plate 10. The side plate 3 and the first support plate 18 are connected by a plurality of second compression springs 19, and the movable plate 10 is in contact with the inclined surface on the push block 11. The driver includes a first servo motor 20 fixedly mounted on one of the support frames 8. The output end of the first servo motor 20 is fixedly connected to the first bevel gear 21, and the rotating shaft 7 is fixedly mounted with a second bevel gear 22 meshing with the first bevel gear 21; When the iron plate 12 is in the initial position, the bottom of the iron plate 12 contacts the top of the first magnet block 13, so that the iron plate 12, the side plate 3 and the rotating frame 2 are fixed relative to the detection frame 1, and the second compression spring 19 is initially in a compressed state. The second compression spring 19 applies pressure to the first support plate 18 and the movable plate 10, so that the movable plate 10 contacts the inclined surface on the push block 11. When the cigarette box contacts the rotating frame 2 and the cigarette box moves between the two clamping plates 4, the first bevel gear 21 is driven to rotate by the first servo motor 20. The first bevel gear 21 drives the rotating shaft 7 and the rotating plate 9 to rotate through the second bevel gear 22. The rotating plate 9 drives the push block 11 to move relative to the side plate 3. The end of the movable plate 10 slides on the inclined surface of the push block 11, and the push block 11 is pushed. 1 pushes the movable plate 10 and the clamping plate 4 toward the cigarette box, the distance between the first support plate 18 and the second compression spring 19 becomes smaller, the second compression spring 19 becomes shorter, and finally the two clamping plates 4 contact the cigarette box, and the first compression spring 17 is in a compressed state. The first compression spring 17 applies pressure to the slider 15 and the clamping plate 4, so that the two clamping plates 4 elastically clamp the cigarette box, and at this time the fourth magnet block 24 contacts the bottom of the iron plate 12. As the rotating shaft 7 and the rotating plate 9 continue to rotate, the fourth magnet block 24 pushes the iron plate 12, the side plate 3 and the rotating frame 2 to rotate synchronously with the rotating plate 9 and the rotating shaft 7. The iron plate 12 is no longer magnetically attracted to the first magnet block 13, and the rotating frame 2 drives the rotating sleeve 5 to rotate relative to the detection frame 1, and the cigarette box begins to flip, and the fourth magnet block 24 Magnetic attraction is achieved between the second magnet block 14 and the iron plate 12. During the rotation of the rotating frame 2, the rotating frame 2 and the side plate 3 are prevented from shaking relative to the rotating plate 9. When the rotating frame 2 and the cigarette box are flipped one hundred and eighty degrees, the iron plate 12 contacts the top of the second magnet block 14. At this time, the first servo motor 20 drives the first bevel gear 21 to rotate in the opposite direction. Since the magnetic force between the second magnet block 14 and the iron plate 12 is greater than the magnetic force between the fourth magnet block 24 and the iron plate 12, as the rotating shaft 7 and the rotating plate 9 continue to rotate, the fourth magnet block 24 is no longer magnetically attracted to the iron plate 12, and the rotating plate 9 and the push block 11 slide in the opposite direction relative to the movable plate 10 and the side plate 3. The second compression spring 19 pushes the first support plate 18 and the movable plate 10 to move, so that the end of the movable plate 10 is reversed on the inclined surface of the push block 11 When the movable plate 10 moves to the initial position relative to the push block 11, the movable plate 10 drives the clamping plate 4 to no longer contact the cigarette box, and at this time the third magnet block 23 is in contact with the bottom of the iron plate 12. As the rotating shaft 7 and the rotating plate 9 continue to rotate, the third magnet block 23 drives the iron plate 12, the side plate 3 and the rotating frame 2 to rotate in the opposite direction. The iron plate 12 is no longer magnetically attracted to the second magnet block 14. When the rotating frame 2 and the side plate 3 rotate 180 degrees in the opposite direction, the iron plate 12 is magnetically attracted to the first magnet block 13 again, and the clamping plate 4 and the rotating frame 2 flip to the initial position. The bottom of the cigarette box that was not detected before rotates to the top. The original bottom of the cigarette box is detected by the image visual detection mechanism, and different positions on the cigarette box can be detected, so that the cigarette box can be effectively detected.Improved the accuracy of detection data.

[0022] Example 3, based on Example 1, Figure 1 and Figure 8 It is given that the moving mechanism includes a driving roller 26 and a driven roller 27 rotatably mounted on the detection frame 1, and the driving roller 26 and the driven roller 27 are connected by a conveyor belt 25. The detection frame 1 is fixedly mounted with a second servo motor 28, and the output end of the second servo motor 28 is fixedly connected to the driving roller 26. A number of supporting rollers 29 are rotatably connected to the detection frame 1, and the conveyor belt 25 is sleeved on the outside of the supporting roller 29. Two correction plates 30 are provided above the detection frame 1, and a second supporting portion 31 is provided on the side away from the two correction plates 30. The second supporting portion 31 is fixedly connected to the detection frame 1, and a hydraulic telescopic rod 32 is fixedly mounted on the second supporting portion 31, and the telescopic end of the hydraulic telescopic rod 32 is fixedly connected to the correction plate 30. Image visual inspection The detection mechanism includes a first mounting seat 33 and a second mounting seat 34 arranged above the detection frame 1, and the rotating frame 2 is located between the first mounting seat 33 and the second mounting seat 34, the bottom of the first mounting seat 33 and the second mounting seat 34 are fixedly connected with a first detection camera 35, the first mounting seat 33 is fixedly mounted with four second detection cameras 36, and the second detection cameras 36 are tilted. Two second support plates 37 are fixedly connected to the first mounting seat 33 and the second mounting seat 34, and a screw rod 38 passes through the second support plate 37. The bottom end of the screw rod 38 and the detection frame 1 are connected by a connecting plate 39. The outside of the screw rod 38 is provided with two nuts 40, and the two adjacent nuts 40 are in contact with the top and bottom of the second support plate 37 respectively; The second servo motor 28 drives the driving roller 26 to rotate, and the driving roller 26 drives the conveyor belt 25 to convey the cigarette box, and the conveyor belt 25 drives the driven roller 27 to rotate, and the conveyor belt 25 is supported by the support roller 29. Before the cigarette box moves to the first inspection station, the hydraulic telescopic rod 32 drives the correction plate 30 to move. The two correction plates 30 push the cigarette box to move so that the cigarette box is centered relative to the conveyor belt 25. The staff drives the second support plate 37 to move vertically relative to the screw rod 38 to adjust the initial height of the first mounting seat 33 and the second mounting seat 34. When the first inspection camera After the heights of 35 and the second detection camera 36 are adjusted, the staff drives the two adjacent nuts 40 to rotate so that the two adjacent nuts 40 clamp the second support plate 37, so that the second support plate 37 can be fixed relative to the screw rod 38 and the detection frame 1. When the cigarette box moves to the first detection station, the top and four sides of the cigarette box are inspected by the first detection camera 35 located on the first mounting seat 33 and the four second detection cameras 36. When the cigarette box moves to the second detection station, the original bottom of the cigarette box is inspected by the first detection camera 35 located on the second mounting seat 34.

[0023] A cigarette box quality detection method based on image vision in this embodiment uses the above-mentioned cigarette box quality detection device based on image vision, and includes the following steps: Step 1: The cigarette box is driven to move by the moving mechanism. When the cigarette box moves to the first inspection station, the top and four sides of the cigarette box are inspected by the image visual inspection mechanism; Step 2: When the cigarette box moves from the first inspection station to the flipping station, the cigarette box moves between the two clamping plates 4. The driver drives the rotating shaft 7 to rotate. The rotating shaft 7 drives the two clamping plates 4 to clamp the cigarette box through the flip adjustment structure. Then, the rotating shaft 7 drives the clamping plates 4, the rotating frame 2 and the rotating sleeve 5 to rotate synchronously. Step 3: When the rotating frame 2 rotates 180 degrees, the flip adjustment structure drives the clamping plate 4 to no longer contact the cigarette box, and drives the rotating shaft 7 to rotate in the opposite direction through the driver, so that the rotating frame 2 and the clamping plate 4 rotate in the opposite direction to the initial position, completing the flipping of the cigarette box; Step 4: When the cigarette box moves from the flipping station to the second inspection station, the bottom of the cigarette box that was not inspected originally rotates upward, and the original bottom of the cigarette box is inspected by the image vision inspection mechanism.

[0024] Working principle: The cigarette box is driven to move by a moving mechanism. When the cigarette box moves to the first inspection station, the top and four sides of the cigarette box are inspected by the image visual inspection mechanism. When the cigarette box moves from the first inspection station to the flipping station, the cigarette box moves between the two clamping plates 4, and the driver drives the rotating shaft 7 to rotate. The rotating shaft 7 drives the two clamping plates 4 to clamp the cigarette box through the flipping adjustment structure, and then the rotating shaft 7 drives the clamping plates 4, the rotating frame 2 and the rotating sleeve 5 to rotate synchronously. When the rotating frame 2 rotates one hundred and eighty degrees, the flipping adjustment structure drives the clamping plates 4 to no longer contact the cigarette box, and drives the rotating shaft 7 to rotate in the opposite direction through the driver, so that the rotating frame 2 and the clamping plates 4 rotate in the opposite direction to the initial position, completing the flipping of the cigarette box. When the cigarette box moves from the flipping station to the second inspection station, the bottom of the cigarette box that has not been inspected originally rotates to the top, and the image visual inspection mechanism is used to inspect the original bottom of the cigarette box. Different positions on the cigarette box can be inspected, so that the cigarette box is effectively inspected, thereby improving the accuracy of the inspection data. When the iron plate 12 is in the initial position, the bottom of the iron plate 12 contacts the top of the first magnet block 13, so that the iron plate 12, the side plate 3 and the rotating frame 2 are fixed relative to the detection frame 1, and the second compression spring 19 is initially in a compressed state. The second compression spring 19 applies pressure to the first support plate 18 and the movable plate 10, so that the movable plate 10 contacts the inclined surface on the push block 11. When the cigarette box contacts the rotating frame 2 and the cigarette box moves between the two clamping plates 4, the first bevel gear 21 is driven to rotate by the first servo motor 20. The first bevel gear 21 drives the rotating shaft 7 and the rotating plate 9 to rotate through the second bevel gear 22. The rotating plate 9 drives the push block 11 to move relative to the side plate 3, and the end of the movable plate 10 The first support plate 18 and the second compression spring 19 are spaced smaller, and the second compression spring 19 is shortened. Finally, the two clamping plates 4 are in contact with the cigarette box, and the first compression spring 17 is in a compressed state. The first compression spring 17 applies pressure to the slider 15 and the clamping plates 4 so that the two clamping plates 4 elastically clamp the cigarette box. At this time, the fourth magnet block 24 is in contact with the bottom of the iron plate 12. As the rotating shaft 7 and the rotating plate 9 continue to rotate, the fourth magnet block 24 pushes the iron plate 12, the side plate 3 and the rotating frame 2 to rotate synchronously with the rotating plate 9 and the rotating shaft 7. The iron plate 12 is no longer magnetically attracted to the first magnet block 13, and the rotating The rotating frame 2 drives the rotating sleeve 5 to rotate relative to the detection frame 1, and the cigarette box begins to flip over, and the fourth magnet block 24 and the iron plate 12 are magnetically attracted. During the rotation of the rotating frame 2, the rotating frame 2 and the side plate 3 are prevented from shaking relative to the rotating plate 9. When the rotating frame 2 and the cigarette box flip over 180 degrees, the iron plate 12 contacts the top of the second magnet block 14. At this time, the first servo motor 20 drives the first bevel gear 21 to rotate in the opposite direction. Since the magnetic force between the second magnet block 14 and the iron plate 12 is greater than the magnetic force between the fourth magnet block 24 and the iron plate 12 at this time, as the rotating shaft 7 and the rotating plate 9 continue to rotate, the fourth magnet block 24 is no longer magnetically attracted to the iron plate 12, and the rotating plate 9 and the push block 11 are reversed relative to the movable plate 10 and the side plate 3. Sliding, the second compression spring 19 pushes the first support plate 18 and the movable plate 10 to move, so that the end of the movable plate 10 slides in the opposite direction on the inclined surface of the push block 11. When the movable plate 10 moves to the initial position relative to the push block 11, the movable plate 10 drives the clamping plate 4 to no longer contact the cigarette box, and at this time the third magnet block 23 is in contact with the bottom of the iron plate 12. As the rotating shaft 7 and the rotating plate 9 continue to rotate, the third magnet block 23 supports the iron plate 12, the side plate 3 and the rotating frame 2 to rotate in the opposite direction, and the iron plate 12 is no longer magnetically attracted to the second magnet block 14. When the rotating frame 2 and the side plate 3 rotate one hundred and eighty degrees in the opposite direction, the iron plate 12 is magnetically attracted to the first magnet block 13 again, and the clamping plate 4 and the rotating frame 2 flip to their initial positions; The second servo motor 28 drives the driving roller 26 to rotate, and the driving roller 26 drives the conveyor belt 25 to convey the cigarette box, and the conveyor belt 25 drives the driven roller 27 to rotate, and the conveyor belt 25 is supported by the support roller 29. Before the cigarette box moves to the first inspection station, the hydraulic telescopic rod 32 drives the correction plate 30 to move. The two correction plates 30 push the cigarette box to move so that the cigarette box is centered relative to the conveyor belt 25. The staff drives the second support plate 37 to move vertically relative to the screw rod 38 to adjust the initial height of the first mounting seat 33 and the second mounting seat 34. When the first inspection camera After the heights of 35 and the second detection camera 36 are adjusted, the staff drives the two adjacent nuts 40 to rotate so that the two adjacent nuts 40 clamp the second support plate 37, so that the second support plate 37 can be fixed relative to the screw rod 38 and the detection frame 1. When the cigarette box moves to the first detection station, the top and four sides of the cigarette box are inspected by the first detection camera 35 located on the first mounting seat 33 and the four second detection cameras 36. When the cigarette box moves to the second detection station, the original bottom of the cigarette box is inspected by the first detection camera 35 located on the second mounting seat 34.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A cigarette box quality detection device based on image vision, comprising a detection frame (1), characterized in that: The detection frame (1) is provided with a moving mechanism for driving the cigarette box to move, a rotating frame (2) is provided above the detection frame (1), two side plates (3) are fixedly mounted on the rotating frame (2), and a clamping plate (4) is provided on the adjacent sides of the two side plates (3), a rotating shaft (7) is provided above the detection frame (1), a rotating sleeve (5) is provided on the outer sleeve of the rotating shaft (7), and the rotating frame (2) and the rotating sleeve (5) are fixedly connected; The two ends of the rotating sleeve (5) are respectively rotatably sleeved with a first support portion (6), and the two ends of the rotating shaft (7) are respectively rotatably sleeved with a support frame (8), and the first support portion (6) and the support frame (8) are both fixedly connected to the detection frame (1), the detection frame (1) is equipped with a driver for driving the rotating shaft (7) to rotate, the rotating shaft (7) is equipped with a flip adjustment structure for adjusting the position of the clamping plate (4), and the detection frame (1) is equipped with an image visual detection mechanism for detecting cigarette boxes.

2. The cigarette box quality inspection device based on image vision according to claim 1, characterized in that: The flip adjustment structure comprises a rotating plate (9) fixedly mounted on both ends of the rotating shaft (7), a movable plate (10) passing through the side plate (3), an elastic member adapted to the clamping plate (4) being mounted on the movable plate (10), a push block (11) being fixedly connected to the side of the rotating plate (9) facing the movable plate (10), and an inclined surface adapted to the movable plate (10) being provided on the push block (11), a pressing unit adapted to the movable plate (10) being mounted on the side plate (3), and a magnetic attraction mechanism adapted to the rotating plate (9) and the detection frame (1) being mounted on the side plate (3).

3. The device for detecting cigarette pack quality based on image vision according to claim 2, characterized in that: The magnetic attraction mechanism comprises an iron plate (12) fixedly mounted on the two side plates (3) at a distance from each other, a first magnet block (13) and a second magnet block (14) being fixedly connected to both sides of the detection frame (1), and the top of the first magnet block (13) and the bottom of the iron plate (12) being in contact, and a third magnet block (23) and a fourth magnet block (24) being fixedly connected to the sides of the two rotating plates (9) at a distance from each other, and the iron plate (12) being located between the third magnet block (23) and the fourth magnet block (24).

4. The device for detecting cigarette pack quality based on image vision according to claim 2, characterized in that: The elastic member includes a slider (15) fixedly mounted on the side of the splint (4) facing the movable plate (10), a slide groove (16) is provided on the side of the movable plate (10) facing the splint (4), and an end of the slider (15) away from the splint (4) is located in the slide groove (16), and the slider (15) and the inner wall of the slide groove (16) are connected by a plurality of first compression springs (17).

5. The device for detecting cigarette pack quality based on image vision according to claim 2, characterized in that: The pressing unit comprises a first support plate (18) fixedly mounted on the movable plate (10), the side plate (3) and the first support plate (18) are connected via a plurality of second compression springs (19), and the movable plate (10) and the inclined surfaces on the push block (11) are in contact with each other.

6. The device for detecting cigarette pack quality based on image vision according to claim 1, characterized in that: The driver comprises a first servo motor (20) fixedly mounted on one of the support frames (8), an output end of the first servo motor (20) is fixedly connected to a first bevel gear (21), and a second bevel gear (22) meshing with the first bevel gear (21) is fixedly mounted on the rotating shaft (7).

7. The cigarette box quality inspection device based on image vision according to claim 1, characterized in that: The moving mechanism includes a driving roller (26) and a driven roller (27) rotatably mounted on the detection frame (1), and the driving roller (26) and the driven roller (27) are connected via a conveyor belt (25). The detection frame (1) is fixedly mounted with a second servo motor (28), and the output end of the second servo motor (28) is fixedly connected to the driving roller (26). The detection frame (1) is rotatably connected with a plurality of supporting rollers (29), and the conveyor belt (25) is sleeved on the outside of the supporting rollers (29).

8. The device for detecting cigarette pack quality based on image vision according to claim 1, characterized in that: Two correction plates (30) are provided above the detection frame (1), and a second support portion (31) is provided on a side of the two correction plates (30) that is away from each other. The second support portion (31) is fixedly connected to the detection frame (1), and a hydraulic telescopic rod (32) is fixedly installed on the second support portion (31), and the telescopic end of the hydraulic telescopic rod (32) is fixedly connected to the correction plate (30).

9. The device for detecting cigarette pack quality based on image vision according to claim 1, characterized in that: The image visual detection mechanism comprises a first mounting seat (33) and a second mounting seat (34) arranged above the detection frame (1), and the rotating frame (2) is located between the first mounting seat (33) and the second mounting seat (34), the bottom of the first mounting seat (33) and the second mounting seat (34) are fixedly connected with a first detection camera (35), the first mounting seat (33) is fixedly mounted with four second detection cameras (36), and the second detection cameras (36) are tilted, and the first mounting seat (33) and the second mounting seat (34) are fixedly connected with two second support plates (37), a screw rod (38) passes through the second support plate (37), the bottom end of the screw rod (38) and the detection frame (1) are connected by a connecting plate (39), the outer sleeve of the screw rod (38) is provided with two nuts (40), and the two adjacent nuts (40) are respectively in contact with the top and bottom of the second support plate (37).

10. A method for detecting cigarette pack quality based on image vision, using the cigarette pack quality detection device based on image vision according to claim 1, characterized in that: The following steps are involved: Step 1: The cigarette box is driven to move by the moving mechanism. When the cigarette box moves to the first inspection station, the top and four sides of the cigarette box are inspected by the image visual inspection mechanism; Step 2: When the cigarette box moves from the first inspection station to the flipping station, the cigarette box moves between the two clamping plates (4), and the driver drives the rotating shaft (7) to rotate. The rotating shaft (7) drives the two clamping plates (4) to clamp the cigarette box through the flipping adjustment structure, and then the rotating shaft (7) drives the clamping plates (4), the rotating frame (2) and the rotating sleeve (5) to rotate synchronously; Step 3: When the rotating frame (2) rotates 180 degrees, the flip adjustment structure drives the clamping plate (4) to no longer contact the cigarette box, and drives the rotating shaft (7) to rotate in the opposite direction through the driver, so that the rotating frame (2) and the clamping plate (4) rotate in the opposite direction to the initial position, completing the flipping of the cigarette box; Step 4: When the cigarette box moves from the flipping station to the second inspection station, the bottom of the cigarette box that was not inspected originally rotates upward, and the original bottom of the cigarette box is inspected by the image vision inspection mechanism.

Images