Packaging box detection method and device
By designing an automated packaging box inspection device, which utilizes a servo slide and mechanical structure to automatically open and unfold the box lid, the problem of increased labor intensity caused by manually opening the box lid is solved, and efficient inspection of the inner surface of the packaging box is achieved.
Patent Information
- Application Number
- CN202511486779.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-17
- Publication Date
- 2025-11-18
AI Technical Summary
In existing technologies, the inspection of the inner surface of packaging boxes requires manual opening of the box lid, which increases the labor intensity of workers and makes the inspection inconvenient.
A packaging box detection device was designed. It uses a servo slide to drive the box body and lid to move. Combined with opening wheels, box fixing parts and box unfolding parts, it automatically opens the lid and fixes the box body, realizing the automatic flipping and unfolding of the box body and lid, which facilitates the image acquisition component to capture the inner surface.
The elimination of the need for manual opening of the box reduces the labor intensity of workers, improves testing efficiency, and simplifies the testing process.
Smart Images
Figure CN120971431A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of testing facilities, and more particularly to a method and apparatus for testing packaging boxes. Background Technology
[0002] Packaging boxes are used to package products and play an important role in the distribution and sales of products. To ensure the safety of packaging boxes, they must be processed in accordance with relevant standardized requirements. After processing, packaging boxes are generally inspected using optical inspection methods. During inspection, image acquisition components are used to capture the visual features of the packaging box surface, and the captured images are analyzed to identify whether there are any defects on the packaging box surface.
[0003] However, when inspecting the inner surface of the packaging box, since the lid and the box body are closed together, it needs to be opened to ensure smooth inspection of the inner surface of the packaging box. The opening process mostly relies on workers to open it manually, which greatly increases the labor intensity of workers and makes the inspection inconvenient. Summary of the Invention
[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a method and apparatus for detecting packaging boxes.
[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a packaging box inspection device, comprising an inspection table, a support fixedly installed at the upper rear edge of the inspection table, an image acquisition component installed at the upper middle part of the support, a servo slide fixedly installed on one side of the upper end of the inspection table, a connecting shaft throughly embedded in the slide of the servo slide, an upper frame and a lower frame rotatably installed at the end of the connecting shaft, the lower frame and the upper frame being offset, a box unfolding component being provided between the lower frame and the upper frame, and two vertical guide columns symmetrically fixedly installed at the end of the upper frame. A No. 2 positioning cap is coaxially embedded at the end of the guide post. A lifting frame is slidably installed between the outer surfaces of the two vertical guide posts. A box-opening wheel is installed on the side of the lifting frame. A box-opening rail is fitted to the upper end of the box-opening wheel. The rear end of the box-opening rail is inclined upward. A fixing frame is fixedly installed on the other side of the upper end of the testing table. The box-opening rail is fixed to the fixing frame. A box-opening spring is wound around the outside of the vertical guide post. The two ends of the box-opening spring are fixed to the upper end of the upper frame and the lower end of the lifting frame, respectively. The box-opening spring is in a contracted state. A box-fixing component is provided between the download frame and the lifting frame.
[0006] Preferably, the fixed box component includes a T-shaped frame extending to the lower end of the lifting frame, the lower end of the T-shaped frame pressing against the upper end of the upper frame, and an open column shell fixedly installed on the side of the T-shaped frame and the end of the download frame. A cover frame is fixedly installed on the opposite ends of the two open column shells, and two fixed corner claws extend symmetrically from the rear corners of the opposite surfaces of the two cover frames.
[0007] Preferably, two guide seats extend symmetrically and obliquely from opposite front ends of the two cover frames. A slider is slidably installed inside each of the two guide seats. A protruding post extends from the front end of the slider. A movable pawl is fixedly installed at the end of the protruding post. A push post is slidably installed inside the open column shell. A push frame extends from the front end of the push post. The push frame passes through the opening of the open column shell. A connecting frame is fixedly installed at the end of the push frame. A push claw frame is rotatably installed between the end of the connecting frame and the slider.
[0008] Preferably, the end of the push column extends through the end of the open column shell, and a fixed box wheel is installed at the end of the push column. Two fixed box rails extend symmetrically and obliquely on the fixing frame. The fixed box wheel is attached to the fixed box rails. A fixed box spring is fixedly installed between the inner bottom surface of the open column shell and the push column. The fixed box spring is in a contracted state.
[0009] Preferably, the display box component includes a horizontal guide post disposed between the download rack and the upper rack. A sliding sleeve is elastically installed on the outer surface of the horizontal guide post. Display box frames are rotatably installed at both the upper and lower ends of the sliding sleeve. The ends of the two display box frames are rotatably connected to the download rack and the upper rack, respectively.
[0010] Preferably, the front end of the horizontal guide post is inlaid with an extension bracket, the end of the extension bracket is fixed to the slide of the servo slide, the side of the slide sleeve extends with a top lug, a top seat is provided behind the top lug, and the lower end of the top seat is fixed to the support.
[0011] Preferably, a positioning cap is embedded at the rear end of the horizontal guide post, the sliding sleeve is fitted to the front end of the positioning cap, a return spring is wound around the outside of the horizontal guide post, and the two ends of the return spring are fixed to the extension frame and the sliding sleeve, respectively.
[0012] A method for inspecting packaging boxes is also provided, including the following steps:
[0013] S1: Place the closed box body and lid between the upper and lower lid holders;
[0014] S2: Then the servo slide moves the box and lid backward, and opens the box and lid while flipping them outward by ninety degrees during the movement.
[0015] S3: Next, the image acquisition component takes pictures and analyzes the inner surfaces of the box and lid to identify whether there are any defects.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. When the servo slide moves the box body and lid backward, the opening wheel will roll synchronously on the horizontal surface of the opening rail. When it rolls to the inclined surface at the rear end of the opening rail, the contracted opening spring will restore its deformation to push the opening wheel, causing it to move up along the inclined surface at the rear end of the opening rail. This, in turn, drives the upper cover frame to move upward, lifting the lid and allowing it to be lifted off the box body. This allows the lid and box body, which are closed together, to be opened without manual operation by the worker, thus effectively reducing the labor intensity of the workers and facilitating inspection.
[0018] 2. When the closed box body and lid are placed between the upper and lower cover brackets, the upper and lower cover brackets will fit against the box body and lid. At the same time, the fixed corner claws on the upper cover bracket will fit against the rear corner and lower edge of the lid, and the fixed corner claws on the lower cover bracket will fit against the rear corner and upper edge of the box body. When the servo slide moves the box body and lid backward, the contracted box-fixing spring will push the box-fixing wheel, causing the box-fixing wheel to roll upward along the inclined surface of the box-fixing rail, thereby driving the connecting bracket upward to pull the push claw bracket, allowing the slider to slide within the guide seat, thereby driving the movable corner claws to move towards the position of the box body and lid, so that the upper movable corner claw can fit against the front corner and lower edge of the lid, and the lower movable corner claw can fit against the front corner and upper edge of the box body. In this way, during the backward movement, the lid and box body are automatically fixed to the upper and lower cover brackets respectively. The process does not require manual operation and effectively facilitates use.
[0019] 3. When the box body and lid are opened, the top ear rests on the top seat, stopping the sliding sleeve. Then, the servo slide continues to move the box body and lid backward. At this time, the reset spring deforms, and the box unfolding frame moves to push the upper frame and lower frame, so that they can rotate 90 degrees around the connecting shaft. This causes the box body and lid to rotate 90 degrees in the opposite direction, allowing the box body and lid to unfold and the inner surface of the box body and lid to face the rear, thus facilitating the image acquisition component to capture images. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of a packaging box detection device according to the present invention;
[0021] Figure 2 This is a schematic diagram of the fixing frame of the packaging box detection device of the present invention;
[0022] Figure 3 This is a schematic diagram of the display stand of the packaging box detection device of the present invention;
[0023] Figure 4This invention relates to a packaging box inspection device. Figure 2 Enlarged view of A in the middle;
[0024] Figure 5 This is a schematic diagram of the download rack of a packaging box detection device according to the present invention;
[0025] Figure 6 This is a view showing the use of a packaging box detection device according to the present invention;
[0026] Figure 7 This is a schematic diagram of the box body of a packaging box detection device according to the present invention;
[0027] Figure 8 This invention relates to a packaging box inspection device. Figure 7 Enlarged view of B in the middle;
[0028] Figure 9 This is a schematic diagram of a packaging box for a packaging box detection device according to the present invention.
[0029] In the diagram: 1. Testing table; 2. Support; 3. Image acquisition component; 4. Servo slide; 5. Fixing frame; 6. Box fixing rail; 7. Box opening rail; 8. Loading frame; 9. Box unfolding frame; 10. Downloading frame; 11. Opening column shell; 12. Top seat; 13. Connecting shaft; 14. Extension frame; 15. Return spring; 16. Horizontal guide post; 17. Top lug; 18. Sliding sleeve; 19. Positioning cap No. 1; 20. Push 21. Column; 22. Box-fixing wheel; 23. Push frame; 24. Connecting frame; 25. Box-fixing spring; 26. Push claw frame; 27. Cover frame; 28. Guide seat; 29. Slider; 30. Extending column; 31. Box-opening spring; 32. Vertical guide column; 33. Positioning cap No. 2; 34. T-shaped frame; 35. Lifting frame; 36. Box-opening wheel; 37. Fixed corner claw; 38. Movable corner claw; 39. Box body; 30. Box cover. Detailed Implementation
[0030] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.
[0031] like Figures 1-9The device shown is for inspecting packaging boxes, including an inspection table 1. A support 2 is fixedly installed at the upper rear edge of the inspection table 1. An image acquisition component 3 is installed at the upper middle part of the support 2. Since using the image acquisition component 3 to capture visual features of the inner surface of the packaging box and analyzing the captured images to identify whether there are defects on the surface of the packaging box is existing technology and has been widely used, it is not described in detail here. A servo slide 4 is fixedly installed on one side of the upper end of the inspection table 1. The servo slide 4 drives the box body 38 and the box cover 39 to move. The servo slide 4 has a connecting shaft 13 embedded through it. The upper frame 8 and lower frame 10 are rotatably mounted on the end of the connecting shaft 13. The connecting shaft 13 supports the upper frame 8 and lower frame 10. The lower frame 10 is offset from the upper frame 8. A display box is provided between the lower frame 10 and the upper frame 8. Two vertical guide pillars 31 are symmetrically fixed to the end of the upper frame 8. A second positioning cap 32 is coaxially embedded at the end of each vertical guide pillar 31. The second positioning cap 32 positions the upward movement of the lifting frame 34. The function is as follows: a lifting frame 34 is slidably installed between the outer surfaces of two vertical guide posts 31. The vertical guide posts 31 guide the lifting frame 34. A box-opening wheel 35 is installed on the side of the lifting frame 34. A box-opening rail 7 is fitted to the upper end of the box-opening wheel 35. The box-opening rail 7 presses against the box-opening wheel 35. The rear end of the box-opening rail 7 is inclined upward. A fixing frame 5 is fixedly installed on the other side of the upper end of the detection table 1. The box-opening rail 7 is fixed to the fixing frame 5. A box-opening spring 30 is wound around the outer side of the vertical guide posts 31. The two ends of the box-opening spring 30 are... The box opening spring 30 is in a contracted state. When it rolls to the rear end slope of the box opening rail 7, the contracted box opening spring 30 will restore its deformation to push the box opening wheel 35, causing the box opening wheel 35 to move up along the rear end slope of the box opening rail 7, thereby driving the upper cover frame 26 to move up, so as to lift the box cover 39, so that the box cover 39 is lifted from the box body 38, allowing the closed box cover 39 and box body 38 to be opened. A box fixing component is provided between the download frame 10 and the lifting frame 34.
[0032] The box fixing component includes a T-shaped frame 33 extending from the lower end of the lifting frame 34. The lower end of the T-shaped frame 33 presses against the upper end of the upper frame 8, which can position the lower position of the lifting frame 34. Opening column shells 11 are fixedly installed on the side of the T-shaped frame 33 and the end of the lower frame 10. Cover frames 26 are fixedly installed on the opposite ends of the two open column shells 11. The cover frames 26 serve to support the box body 38 and the box cover 39. Two fixing claws 36 extend symmetrically from the rear corners of the opposite surfaces of the two cover frames 26. The fixing claws 36 serve to position the box body 38 and the box cover 39. The shape design of the fixing claws 36 and the movable claws 37 can fit into the corners and upper and lower edges of the box body 38 and the box cover 39 at the same time, so that the box body 38 and the box cover 39 can be firmly fixed to facilitate subsequent operations such as opening the box.
[0033] Two guide seats 27 extend symmetrically and obliquely from opposite front ends of the two cover frames 26. Slider 28 is slidably installed inside each guide seat 27. A protruding post 29 extends from the front end of the slider 28. The guide seats 27 and slider 28 guide the movable claw 37. The movable claw 37 is fixedly installed at the end of the protruding post 29, which supports the movable claw 37. A push post 20 is slidably installed inside the open column shell 11, which allows the push post 20 to slide. A push frame 22 extends from the front end of the push post 20 and passes through the opening of the open column shell 11. A connecting frame 23 is fixedly installed at the end of the push frame 22. A push claw frame 25 is rotatably installed between the end of the connecting frame 23 and the slider 28. The connecting frame 23 moves upward to pull the push claw frame 25, allowing the slider 28 to slide within the guide seat 27, thereby driving the movable claw 37 to move toward the position of the box body 38 and the box cover 39.
[0034] The end of the push post 20 extends through the end of the open column housing 11. A fixed box wheel 21 is installed at the end of the push post 20. Two fixed box rails 6 extend symmetrically and obliquely on the fixing frame 5. The fixed box wheel 21 is attached to the fixed box rail 6. The fixed box rail 6 presses the fixed box wheel 21. A fixed box spring 24 is fixedly installed between the inner bottom surface of the open column housing 11 and the push post 20. The fixed box spring 24 is in a contracted state. The contracted fixed box spring 24 pushes the fixed box wheel 21, causing the fixed box wheel 21 to roll upward along the inclined surface of the fixed box rail 6.
[0035] The display box assembly includes a horizontal guide post 16 disposed between the download rack 10 and the upper rack 8. A sliding sleeve 18 is elastically mounted on the outer surface of the horizontal guide post 16. The horizontal guide post 16 guides the sliding sleeve 18. Display box frames 9 are rotatably mounted on the upper and lower ends of the sliding sleeve 18. The ends of the two display box frames 9 are rotatably connected to the download rack 10 and the upper rack 8, respectively. The display box frames 9 can push the upper rack 8 and the download rack 10, so that they can rotate 90 degrees around the connecting shaft 13, thereby causing the box body 38 and the box cover 39 to rotate 90 degrees in the opposite direction, so that the box body 38 and the box cover 39 can be unfolded and the inner surfaces of the box body 38 and the box cover 39 can face the rear.
[0036] The front end of the horizontal guide post 16 is inlaid with an extension bracket 14. The end of the extension bracket 14 is fixed to the slide of the servo slide 4. The extension bracket 14 serves to fix the horizontal guide post 16. The side of the slide sleeve 18 extends with a top lug 17. A top seat 12 is provided behind the top lug 17. The cooperation between the top lug 17 and the top seat 12 serves to position the slide sleeve 18 in a backward position. The lower end of the top seat 12 is fixed to the support 2.
[0037] A positioning cap 19 is inlaid at the rear end of the horizontal guide post 16. The sliding sleeve 18 is attached to the front end of the positioning cap 19. The positioning cap 19 prevents the sliding sleeve 18 and the horizontal guide post 16 from separating. A return spring 15 is wound around the outside of the horizontal guide post 16. The two ends of the return spring 15 are fixed to the extension frame 14 and the sliding sleeve 18 respectively. The return spring 15 resets the unfolded box body 38 and the box cover 39.
[0038] A method for inspecting packaging boxes is also provided, including the following steps:
[0039] S1: Place the closed box body 38 and box lid 39 between the upper and lower lid brackets 26;
[0040] S2: Then the servo slide 4 drives the box body 38 and the box cover 39 to move backward, and opens the box body 38 and the box cover 39 during the movement, while flipping them outward by ninety degrees.
[0041] S3: Next, the image acquisition component 3 takes pictures and analyzes the inner surfaces of the box body 38 and the lid 39 to identify whether there are any defects.
[0042] During testing, the closed box body 38 and box cover 39 are placed between the upper and lower cover brackets 26. At this time, the upper and lower cover brackets 26 will fit against the box body 38 and box cover 39. Simultaneously, the fixing claws 36 on the upper cover bracket 26 will fit against the rear corner and lower edge of the box cover 39, and the fixing claws 36 on the lower cover bracket 26 will fit against the rear corner and upper edge of the box body 38. Then, the servo slide 4 drives the box body 38 and box cover 39 to move backward. At this time, the retracted box-fixing spring 24 will push the box-fixing wheel 21, causing the box-fixing wheel 21 to move along the inclined plane of the box-fixing rail 6. The surface rolls upwards, driving the connecting frame 23 upwards to pull the pusher frame 25, allowing the slider 28 to slide within the guide seat 27. This causes the movable claw 37 to move towards the positions of the box body 38 and the lid 39, so that the upper movable claw 37 can fit against the front corner and lower edge of the lid 39, and the lower movable claw 37 can fit against the front corner and upper edge of the box body 38. This fixes the lid 39 and the box body 38 onto the upper and lower cover frames 26 respectively. During this process, the opening wheel 35 rolls synchronously on the horizontal plane of the opening rail 7. Subsequently, the servo slide 4 continues to move the box body 38 and the lid 39 backward. When the opening wheel 35 rolls to the rear end slope of the opening rail 7, the contracted opening spring 30 will restore its deformation to push the opening wheel 35, causing it to move up along the rear end slope of the opening rail 7. This, in turn, drives the upper cover bracket 26 to move upward, lifting the lid 39 and allowing it to be lifted off the box body 38. This allows the lid 39 and box body 38, which are now closed, to be opened. Once the box body 38 and lid 39 are opened, the top lug 17 rests against the top seat 12. The sliding sleeve 18 stops moving, and then the servo slide 4 continues to drive the box body 38 and the box cover 39 to move backward. At this time, the reset spring 15 deforms, and the box unfolding frame 9 moves to push the upper frame 8 and the lower frame 10 so that they can rotate 90 degrees around the connecting shaft 13, thereby driving the box body 38 and the box cover 39 to rotate 90 degrees in the opposite direction, so that the box body 38 and the box cover 39 can unfold and the inner surface of the box body 38 and the box cover 39 can face the rear. Then the image acquisition component 3 takes pictures and analyzes the inner surface of the box body 38 and the box cover 39 to identify whether there are any defects.
[0043] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.
Claims
1. A device for inspecting packaging boxes, comprising an inspection table (1), wherein a support (2) is fixedly installed at the upper rear edge of the inspection table (1), and an image acquisition component (3) is installed at the upper middle part of the support (2), characterized in that: A servo slide (4) is fixedly installed on one side of the upper end of the testing platform (1). A connecting shaft (13) is embedded through the slide of the servo slide (4). An upper frame (8) and a lower frame (10) are rotatably installed at the end of the connecting shaft (13). The lower frame (10) and the upper frame (8) are staggered. A display box is provided between the lower frame (10) and the upper frame (8). Two vertical guide pillars (31) are symmetrically fixedly installed at the end of the upper frame (8). A second positioning cap (32) is coaxially embedded at the end of the vertical guide pillars (31). A lifting frame (34) is slidably installed between the outer surfaces of the two vertical guide pillars (31). The lifting frame (34) is equipped with a box-opening wheel (35) on its side. The upper end of the box-opening wheel (35) is fitted with a box-opening rail (7). The rear end of the box-opening rail (7) is inclined upward. A fixing frame (5) is fixedly installed on the other side of the upper end of the testing table (1). The box-opening rail (7) is fixed to the fixing frame (5). A box-opening spring (30) is wound around the outside of the vertical guide column (31). The two ends of the box-opening spring (30) are fixed to the upper end of the upper frame (8) and the lower end of the lifting frame (34), respectively. The box-opening spring (30) is in a contracted state. A box-fixing component is provided between the download frame (10) and the lifting frame (34).
2. The packaging box detection device according to claim 1, characterized in that: The fixed box component includes a T-shaped frame (33) extending at the lower end of the lifting frame (34), the lower end of the T-shaped frame (33) pressing against the upper end of the upper frame (8), and an open column shell (11) fixedly installed on the side of the T-shaped frame (33) and the end of the download frame (10). A cover frame (26) is fixedly installed on the opposite ends of the two open column shells (11), and two fixed corner claws (36) extend symmetrically from the rear corners of the opposite surfaces of the two cover frames (26).
3. The device for detecting packaging boxes according to claim 2, characterized in that: Two guide seats (27) extend symmetrically and obliquely from opposite front ends of the two cover frames (26). A slider (28) is slidably installed inside each of the two guide seats (27). A protruding column (29) extends from the front end of the slider (28). A movable claw (37) is fixedly installed at the end of the protruding column (29). A push column (20) is slidably installed inside the open column shell (11). A push frame (22) extends from the front end of the push column (20). The push frame (22) passes through the opening of the open column shell (11). A connecting frame (23) is fixedly installed at the end of the push frame (22). A push claw frame (25) is rotatably installed between the end of the connecting frame (23) and the slider (28).
4. The packaging box inspection device according to claim 3, characterized in that: The end of the push column (20) extends through the end of the open column shell (11). A fixed box wheel (21) is installed at the end of the push column (20). Two fixed box rails (6) extend symmetrically and obliquely on the fixed frame (5). The fixed box wheel (21) fits against the fixed box rail (6). A fixed box spring (24) is fixedly installed between the inner bottom surface of the open column shell (11) and the push column (20). The fixed box spring (24) is in a contracted state.
5. The packaging box inspection device according to claim 4, characterized in that: The display box component includes a horizontal guide post (16) disposed between the download rack (10) and the upper rack (8). A sliding sleeve (18) is elastically installed on the outer surface of the horizontal guide post (16). Display box frames (9) are rotatably installed on the upper and lower ends of the sliding sleeve (18). The ends of the two display box frames (9) are rotatably connected to the download rack (10) and the upper rack (8) respectively.
6. The packaging box inspection device according to claim 5, characterized in that: The front end of the horizontal guide post (16) is inlaid with an extension bracket (14), the end of the extension bracket (14) is fixed to the slide of the servo slide (4), the side of the slide sleeve (18) has a top ear (17), a top seat (12) is provided behind the top ear (17), and the lower end of the top seat (12) is fixed to the support (2).
7. The packaging box inspection device according to claim 6, characterized in that: The rear end of the horizontal guide post (16) is inlaid with a positioning cap (19), and the sliding sleeve (18) is attached to the front end of the positioning cap (19). A return spring (15) is wound around the outside of the horizontal guide post (16), and the two ends of the return spring (15) are fixed to the extension frame (14) and the sliding sleeve (18) respectively.
8. A method for detecting packaging boxes, applied in the packaging box detection apparatus according to claim 7, characterized in that, Includes the following steps: S1: Place the closed box body (38) and box lid (39) between the upper and lower lid holders (26); S2: Then the servo slide (4) drives the box body (38) and the box cover (39) to move backward, and opens the box body (38) and the box cover (39) during the movement, while flipping outward by ninety degrees; S3: Next, the image acquisition component (3) takes pictures and analyzes the inner surfaces of the box body (38) and the box cover (39) to identify whether there are defects.