A label detection device
Patent Information
- Application Number
- CN202520970767.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-08-21
- Estimated Expiration
- 2035-05-16
AI Technical Summary
[0003]本实用新型的目的在于提供一种标签检测装置,以解决上述背景技术中提出的现有的标签检测装置在标签输送过程中容易出现张力波动的情况,导致平场相机成像模糊、检测区域偏移,进而引发缺陷漏检、误判的质量风险的问题
[0018]Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up a second cylinder, an adjusting frame, and a tension roller, uses the tension roller rotating inside the adjusting frame to cooperate with the guide roller. The output end of the second cylinder drives the adjusting frame and the tension roller to adjust their height position, thereby adjusting the tension during label conveying and avoiding blurry images and detection area offset, thus improving the stability of detection. By setting up a fixed box, an insertion port, and a beveled block, the insertion port in the top fixed plate cooperates with the fixed box, the beveled block is fixed to the bottom of the top fixed plate, and the support plate and the top fixed plate are attached to each other, allowing the flat field camera and the top fixed plate to be installed below the support plate, which facilitates the installation and disassembly of the flat field camera during maintenance.
Smart Images

Figure CN224667652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of label detection technology, specifically a label detection device. Background Technology
[0002] Die-cut labels refer to label products made by processing label materials (such as paper, film, self-adhesive, etc.) into specific shapes, sizes, or outlines through die-cutting processes. Its core feature is the precise cutting of materials using molds (distillation dies), giving the labels a customized shape to match product packaging or application scenarios, while retaining the label's functionality (such as stickability, peelability, anti-counterfeiting, etc.). With the rapid development of intelligent manufacturing technology, label inspection has gradually shifted from traditional manual visual inspection to high-precision, high-efficiency automated inspection. In existing technologies, flat-field cameras inspect die-cut labels in the following ways: High-resolution imaging: Utilizing its integrated design of a self-focusing cylindrical lens, LED light source, and photosensitive element array, the flat-field camera can capture label details at extremely high resolution; Dynamic visual inspection: During high-speed label transport, the flat-field camera... Field cameras achieve large-format, high-speed image acquisition through progressive scanning technology (such as CIS technology); Image preprocessing and analysis: After preprocessing such as noise reduction, grayscale conversion and edge enhancement, the acquired images are used to detect defects using image analysis technology; Defect classification and location: Field cameras, combined with machine learning algorithms, classify detected defects (such as size deviation, pattern defects, color defects) and accurately locate the defect positions, facilitating subsequent rejection or rework. However, existing label inspection devices are prone to tension fluctuations during label transportation, which can lead to blurred imaging and detection area shifts in the field camera, resulting in quality risks such as missed defects and misjudgments. Utility Model Content
[0003] The purpose of this invention is to provide a label inspection device to solve the problem mentioned in the background art that existing label inspection devices are prone to tension fluctuations during label transportation, which leads to blurred imaging of the flat field camera, displacement of the inspection area, and consequently, quality risks such as missed defects and misjudgments.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a label detection device, comprising:
[0005] Organism;
[0006] The take-up and release roller frame is symmetrically rotated and arranged on one side of the machine body;
[0007] Side support plate, the side support plate is installed on one side of the machine body, and a cylinder No. 1 is installed on the top of the side support plate;
[0008] A support plate is installed at the output end of the first cylinder. A top fixing plate is installed below the support plate, and a flat-field camera is installed at the bottom of the top fixing plate.
[0009] The mounting structure is located inside the support plate.
[0010] A side fixing frame is symmetrically installed on one side of the machine body, and a second cylinder is installed on the top of the side fixing frame;
[0011] An adjusting frame is fixed to the output end of the second cylinder, and a tension roller is rotatably installed on the inner side of the adjusting frame.
[0012] The guide roller is symmetrically rotated and arranged on one side of the machine body, and an outer guide ring is slidably arranged on the outer side of the guide roller.
[0013] As a preferred embodiment of this utility model: the installation structure includes a fixed box, which is symmetrically fixed inside the support plate. The top fixed plate has symmetrically opened slots that cooperate with the fixed box. An inner sliding plate is slidably arranged inside the fixed box. A sloping block that cooperates with the top fixed plate is fixedly connected to one side of the inner sliding plate. A guide slope that cooperates with the sloping block is opened at the top of the slot.
[0014] As a preferred embodiment of this utility model: a pressing plate is fixedly connected to one side of the inner sliding plate, the pressing plate is slidably connected to the fixed box, a plurality of limiting slide rods are symmetrically slidably arranged inside the inner sliding plate, the limiting slide rods are fixedly connected to the fixed box, a plurality of springs are symmetrically arranged inside the fixed box, and one end of the spring is connected to the inner sliding plate.
[0015] As a preferred embodiment of this utility model: multiple limiting sliders are fixedly connected at equal intervals on the inner side of the outer guide ring, the limiting sliders are slidably connected to the guide roller, a side connecting plate is fixedly connected to one side of the outer guide ring, the internal thread of the side connecting plate is connected to a limiting bolt, and multiple limiting grooves that cooperate with the limiting bolts are opened at equal intervals on the outer side of the guide roller.
[0016] As a preferred embodiment of this utility model: a motor is symmetrically installed on one side of the machine body, the output end of the motor is fixedly connected to the take-up and release roller frame, a first limiting rod is symmetrically fixedly connected to the top of the support plate, the first limiting rod is slidably connected to the side support plate, a second limiting rod is symmetrically fixedly connected to the top of the adjustment frame, the second limiting rod is slidably connected to the side fixing frame, and a label passing plate is fixedly connected to one side of the machine body.
[0017] As a preferred embodiment of this utility model: a controller is installed on one side of the machine body, and a display screen is provided on the top of the machine body.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting up a second cylinder, an adjusting frame, and a tension roller, uses the tension roller rotating inside the adjusting frame to cooperate with the guide roller. The output end of the second cylinder drives the adjusting frame and the tension roller to adjust their height position, thereby adjusting the tension during label conveying and avoiding blurry images and detection area offset, thus improving the stability of detection. By setting up a fixed box, an insertion port, and a beveled block, the insertion port in the top fixed plate cooperates with the fixed box, the beveled block is fixed to the bottom of the top fixed plate, and the support plate and the top fixed plate are attached to each other, allowing the flat field camera and the top fixed plate to be installed below the support plate, which facilitates the installation and disassembly of the flat field camera during maintenance. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a top view of the present invention;
[0021] Figure 3 This is a schematic diagram of the socket structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the installation of the support plate and top fixing plate of this utility model;
[0023] Figure 5 This is a schematic diagram of the internal structure of the fixing box of this utility model;
[0024] Figure 6 This is a schematic diagram of the guide roller structure of this utility model.
[0025] In the diagram: 1. Machine body; 2. Take-up and untake-down roller frame; 3. Motor; 4. Side support plate; 5. Cylinder No. 1; 6. Support plate; 7. Limiting rod No. 1; 8. Top fixing plate; 9. Leveling camera; 10. Fixing box; 11. Insertion port; 12. Inclined locking block; 13. Inner sliding plate; 14. Pressing plate; 15. Limiting slide rod; 16. Spring; 17. Side fixing frame; 18. Cylinder No. 2; 19. Limiting rod No. 2; 20. Adjusting frame; 21. Tension roller; 22. Label passing plate; 23. Controller; 24. Guide roller; 25. Outer guide ring; 26. Limiting slider; 27. Side connecting plate; 28. Limiting bolt; 29. Limiting groove. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1 to 6 This utility model provides a technical solution: a label detection device, comprising: a body 1; a take-up and release roller frame 2 symmetrically rotated and disposed on one side of the body 1; a side support plate 4 bolted to one side of the body 1, with a first cylinder 5 mounted on the top of the side support plate 4; a support plate 6 fixedly connected to the output end of the first cylinder 5, with a top fixing plate 8 mounted below the support plate 6, and a flat-field camera 9 disposed at the bottom of the top fixing plate 8; an installation structure disposed inside the support plate 6; a side fixing frame 17 symmetrically bolted and disposed on one side of the body 1, with a second cylinder 18 mounted on the top of the side fixing frame 17; an adjusting frame 20 fixedly connected to the output end of the second cylinder 18, with a tension roller 21 rotatably disposed on the inner side of the adjusting frame 20; and a guide roller 24 symmetrically rotated and disposed on one side of the body 1, with an outer guide ring 25 slidably disposed on the outer side of the guide roller 24.
[0028] It should be noted that in this embodiment, one take-up and unload roller frame 2 feeds the labels, while the other take-up and unload roller frame 2 winds up the inspected labels. The take-up and unload roller frame 2 is rotated by the output of motor 3. The labels are guided by tension roller 21 and guide roller 24. The outer guide ring 25 and the limiting slider 26 slide at the upper limit of guide roller 24 and are fixed by limiting bolt 28 to the limiting groove 29 on the outside of guide roller 24. The outer guide ring 25 is installed and fixed on the outside of guide roller 24. The output of cylinder 5 drives support plate 6, top fixing plate 8 and flat field camera 9 to move downward, facilitating the inspection of labels conveyed above plate 22. Flat field camera 9 utilizes an integrated self-focusing cylindrical lens, LED light source and photosensitive sensor. The component array design captures label details with extremely high resolution. Image quality is optimized through noise reduction, edge enhancement, and grayscale normalization. Template matching compares real-time images with preset standard templates to detect shape and size deviations. The output of cylinder 18 drives the adjustment frame 20 and tension roller 21 to adjust their height and position, thereby adjusting the tension of the label tape conveyed on the tension roller 21. When the flat field camera 9 needs to be disassembled for maintenance, the pressing plate 14 is pressed inward. The pressing plate 14 drives the inner sliding plate 13 and the inclined block 12 to move into the fixed box 10. The inclined block 12 moves away from the limit fixation at the bottom of the top fixed plate 8. When the inner sliding plate 13 moves, it presses the spring 16. After the inclined block 12 enters the fixed box 10, the top fixed plate 8 and the flat field camera 9 can be removed.
[0029] In one embodiment, such as Figures 3 to 5 As shown, the installation structure includes a fixed box 10, which is symmetrically fixed inside the support plate 6. The top fixed plate 8 has symmetrically opened slots 11 that cooperate with the fixed box 10. An inner sliding plate 13 is slidably arranged inside the fixed box 10. One side of the inner sliding plate 13 is fixedly connected to a sloped block 12 that cooperates with the top fixed plate 8. The top of the slot 11 has a guide slope that cooperates with the sloped block 12.
[0030] It should be noted that, in this embodiment, the top of the socket 11 is provided with a guide slope that cooperates with the slope of the inclined block 12. When the top fixing plate 8, the flat field camera 9 and the support plate 6 are installed, the guide slope in the socket 11 pushes against the inclined block 12, and the inclined block 12 will drive the inner sliding plate 13 to move into the fixed box 10, which facilitates the limiting installation between the inclined block 12 and the top fixing plate 8.
[0031] In one embodiment, such as Figures 3 to 5 As shown, a pressing plate 14 is fixedly connected to one side of the inner sliding plate 13. The pressing plate 14 is slidably connected to the fixed box 10. Multiple limiting slide rods 15 are symmetrically slidably arranged inside the inner sliding plate 13. The limiting slide rods 15 are fixedly connected to the fixed box 10. Multiple springs 16 are symmetrically arranged inside the fixed box 10. One end of the spring 16 is connected to the inner sliding plate 13.
[0032] It should be noted that in this embodiment, the spring 16 resets the moving position of the inner sliding plate 13 and the inclined block 12, and the limit slide rods 15 guide the moving position of the inner sliding plate 13 in the fixed box 10.
[0033] In one embodiment, such as Figure 6 As shown, multiple limiting sliders 26 are fixedly connected at equal intervals on the inner side of the outer guide ring 25. The limiting sliders 26 are slidably connected to the guide roller 24. A side connecting plate 27 is fixedly connected to one side of the outer guide ring 25. A limiting bolt 28 is threadedly connected inside the side connecting plate 27. Multiple limiting grooves 29 that cooperate with the limiting bolts 28 are opened at equal intervals on the outer side of the guide roller 24.
[0034] It should be noted that in this embodiment, the outer guide ring 25 drives the limiting slider 26 to slide at the upper limit of the guide roller 24, and the limiting bolt 28 cooperates with the limiting groove 29 to restrict the movement position of the outer guide ring 25 outside the guide roller 24.
[0035] In one embodiment, such as Figure 1 and Figure 2As shown, a motor 3 is symmetrically installed on one side of the machine body 1. The output end of the motor 3 is fixedly connected to the take-up and release roller frame 2. A first limit rod 7 is symmetrically fixedly connected to the top of the support plate 6. The first limit rod 7 is slidably connected to the side support plate 4. A second limit rod 19 is symmetrically fixedly connected to the top of the adjustment frame 20. The second limit rod 19 is slidably connected to the side fixing frame 17. A label passing plate 22 is fixedly connected to one side of the machine body 1.
[0036] It should be noted that in this embodiment, the output end of the motor 3 drives the take-up and release roller frame 2 to rotate, one of the take-up and release roller frames 2 feeds the label, and the other take-up and release roller frame 2 winds up the label.
[0037] In one embodiment, such as Figure 1 and Figure 2 As shown, a controller 23 is installed on one side of the body 1, and a display screen is installed on the top of the body 1.
[0038] It should be noted that in this embodiment, the label status detected by the flat-field camera 9 is displayed on a screen.
[0039] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0040] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.
[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A label detection device, characterized in that, include: Body (1); Take-up and release roller frame (2) is symmetrically rotated and set on one side of the machine body (1); Side support plate (4), the side support plate (4) is installed on one side of the machine body (1), and a cylinder (5) is installed on the top of the side support plate (4); Support plate (6) is set at the output end of cylinder (5). A top fixing plate (8) is installed below the support plate (6). A flat field camera (9) is set at the bottom of the top fixing plate (8). The mounting structure is located inside the support plate (6); Side fixing bracket (17) is symmetrically installed on one side of the machine body (1), and a second cylinder (18) is installed on the top of the side fixing bracket (17); Adjustment frame (20), the adjustment frame (20) is fixed to the output end of the second cylinder (18), and a tension roller (21) is rotatably provided on the inner side of the adjustment frame (20); Guide roller (24) is symmetrically rotated and arranged on one side of the machine body (1), and an outer guide ring (25) is slidably arranged on the outer side of the guide roller (24).
2. The label detection device according to claim 1, characterized in that: The installation structure includes a fixed box (10), which is symmetrically fixed inside the support plate (6). The top fixed plate (8) has symmetrically opened slots (11) that cooperate with the fixed box (10). The fixed box (10) has an inner sliding plate (13) that is slidably arranged inside. One side of the inner sliding plate (13) is fixed with a sloped block (12) that cooperates with the top fixed plate (8). The top of the slot (11) has a guide slope that cooperates with the sloped block (12).
3. The label detection device according to claim 2, characterized in that: A pressing plate (14) is fixedly connected to one side of the inner sliding plate (13). The pressing plate (14) is slidably connected to the fixed box (10). Multiple limiting slide rods (15) are symmetrically slidably arranged inside the inner sliding plate (13). The limiting slide rods (15) are fixedly connected to the fixed box (10). Multiple springs (16) are symmetrically arranged inside the fixed box (10). One end of the spring (16) is connected to the inner sliding plate (13).
4. The label detection device according to claim 1, characterized in that: Multiple limiting sliders (26) are fixedly connected at equal intervals on the inner side of the outer guide ring (25). The limiting sliders (26) are slidably connected to the guide roller (24). A side connecting plate (27) is fixedly connected to one side of the outer guide ring (25). A limiting bolt (28) is threadedly connected inside the side connecting plate (27). Multiple limiting grooves (29) that cooperate with the limiting bolts (28) are opened at equal intervals on the outer side of the guide roller (24).
5. The label detection device according to claim 1, characterized in that: A motor (3) is symmetrically installed on one side of the machine body (1). The output end of the motor (3) is fixedly connected to the take-up and release roller frame (2). A first limiting rod (7) is symmetrically fixed to the top of the support plate (6). The first limiting rod (7) is slidably connected to the side support plate (4). A second limiting rod (19) is symmetrically fixed to the top of the adjustment frame (20). The second limiting rod (19) is slidably connected to the side fixing frame (17). A label passing plate (22) is fixed to one side of the machine body (1).
6. The label detection device according to claim 1, characterized in that: A controller (23) is installed on one side of the body (1), and a display screen is provided on the top of the body (1).