A visual inspection apparatus for a patch
By incorporating a moving guide rail and an air-blowing head with an adjustment component into the vision inspection equipment, the camera and illumination lamp mirrors are automatically cleaned, solving the inspection error problem caused by lens contamination and improving production efficiency.
Patent Information
- Application Number
- CN202522044843.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-23
AI Technical Summary
In textile production environments, traditional visual inspection equipment is prone to the adhesion of suspended particles to the lenses and light sheets, resulting in blurred images and inspection errors, which affects production efficiency.
An air nozzle with a movable guide rail and adjustment components is installed inside the sunshade to achieve automatic cleaning of the camera and the mirror surface of the illumination lamp.
It improved the continuity of equipment operation and production efficiency, and reduced the cost of manual intervention.
Smart Images

Figure CN224682146U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fabric patch processing, and in particular to a fabric patch visual inspection device. Background Technology
[0002] Fabric patches are decorative materials widely used in clothing, home textiles, and handicrafts. They are attached to the surface of fabrics through methods such as heat pressing or sewing to enhance the product's aesthetics and added value. During their manufacturing process, the surface quality of the fabric patch, such as the integrity of the printed pattern, the accuracy of the colors, and the absence of defects such as stains or wrinkles, directly affects the quality of the final product. Therefore, production lines typically require high-precision visual inspection equipment. This equipment uses cameras and dedicated illumination lights to perform rapid, automated image acquisition and analysis on each fabric patch to ensure compliance with stringent quality standards.
[0003] However, in the textile production environment, fine lint and dust in the air are unavoidable. During continuous operation, traditional visual inspection equipment easily accumulates these suspended particles on the surface of its camera lenses and illumination lamps. This contamination directly leads to blurred images, light scattering, or shadows, severely interfering with the detection algorithm's judgment, causing false positives or false negatives, and reducing the reliability of quality monitoring. To solve this problem, the traditional approach is to stop the production line and have operators manually turn on the equipment for cleaning. This frequent downtime for maintenance not only disrupts the continuous production cycle but also reduces overall production efficiency. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing visual inspection equipment where it is difficult to clean impurities attached to the surface, and to propose a fabric patch visual inspection device.
[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: A fabric patch visual inspection device includes a frame, a sunshade fixedly installed inside the frame, and a visual inspection camera and an illumination lamp installed side by side on the top of the inner cavity of the sunshade. The top of the inner cavity of the sunshade is provided with a horizontally extending movable guide rail. An adjustable component that can adjust the height and angle is connected to the slider of the movable guide rail. An air blowing head is connected to the end of the adjustable component, and the air blowing end of the air blowing head is arranged facing the mirror side of the visual inspection camera and the illumination lamp.
[0006] Preferably, the movable guide rail includes a fixed frame that is fixedly installed on the top of the inner cavity of the sunshade, a lead screw is rotatably provided in the fixed frame, the slider is threadedly connected to the lead screw, a motor is fixedly provided at the end of the fixed frame, and the output end of the motor is fixedly connected to the end of the lead screw.
[0007] Preferably, the adjustment assembly includes a connecting frame fixedly installed on the lower surface of the slider, a movable frame vertically sliding on the connecting frame, a rotating shaft rotatably provided at the lower end of the movable frame, the rotating shaft being fixedly connected to the outer wall of the air blowing head, and height and angle adjustment control components provided on the connecting frame and the movable frame, and a guide component for driving the control components provided inside the sunshade.
[0008] Preferably, the control component includes two fixed springs and two torsion springs. The upper ends of the two springs are fixedly installed in the grooves on both sides of the connecting frame, the lower ends of the two springs are fixedly connected to the upper surface of the movable frame, the ends of the two torsion springs are fixedly installed on both sides of the outer wall of the movable frame, the other ends of the two torsion springs are fixedly connected to the rotating shaft, and a guide plate is fixedly provided on one side of the movable frame.
[0009] Preferably, the guide includes a cylinder fixedly installed at the top of the inner cavity of the sunshade, and a guide rod is fixedly provided laterally at the output end of the cylinder.
[0010] Preferably, a conveyor line is fixedly provided on the inner side of the frame, and the conveyor line is located below the sunshade.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves automatic cleaning of the visual inspection camera and illumination lamp mirrors by incorporating an air-blowing cleaning structure with a movable guide rail and adjustment components within the sunshade's inner cavity. The movable guide rail drives the air-blowing head to move laterally, covering the working area of the optical components. The adjustment components, through multi-degree-of-freedom adjustment, ensure the air-blowing head is precisely aligned with the mirror surface. The continuously outputting airflow effectively removes lint and dust adhering to the lens and lamp surface. This significantly improves the continuity of equipment operation and production efficiency, while reducing manual intervention costs. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the sunshade of this utility model; Figure 3 This is a schematic diagram of the movable guide rail structure of this utility model; Figure 4 This is a schematic diagram of the adjustment component structure of this utility model.
[0013] The components in the diagram are numbered as follows: 1. Frame; 11. Sunshade; 12. Visual inspection camera; 13. Illumination lamp; 14. Air blower; 2. Moving guide rail; 21. Fixed frame; 22. Lead screw; 23. Slider; 24. Motor; 3. Adjustment component; 31. Connecting frame; 32. Moving frame; 33. Rotating shaft; 4. Spring; 41. Guide plate; 42. Torsion spring; 5. Guide component; 51. Cylinder; 52. Guide rod; 6. Conveyor line. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0016] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.
[0017] Example: This example provides a fabric patch visual inspection device, see [link to example]. Figure 1-4 Specifically, it includes a frame 1, a sunshade 11 fixedly installed inside the frame 1, and a visual inspection camera 12 and an illumination lamp 13 installed side by side on the top of the inner cavity of the sunshade 11. The top of the inner cavity of the sunshade 11 is provided with a horizontally extending movable guide rail 2. The slider 23 of the movable guide rail 2 is connected to an adjustment component 3 that can adjust the height and angle. The end of the adjustment component 3 is connected to an air blowing head 14, and the air blowing end of the air blowing head 14 is set towards the mirror side of the visual inspection camera 12 and the illumination lamp 13.
[0018] In this embodiment, the frame 1 supports the entire device, ensuring the stability of each component's installation. The sunshade 11 encloses the inspection area, preventing external light interference and providing a stable working environment for the visual inspection camera 12 and the illumination lamp 13. The visual inspection camera 12 captures images of the fabric patch and analyzes quality indicators such as size, pattern, and edges using algorithms. The illumination lamp 13 provides a uniform light source, enhancing image contrast and ensuring clear imaging by the visual inspection camera 12. The fabric patch is conveyed to the area below the sunshade 11 via the conveyor line 6, illuminated by the illumination lamp 13, and the visual inspection camera 12 captures images in real time and transmits them to the inspection system to complete quality inspection. The air blower head 14 is connected to an external air blowing device via a pipe to deliver gas. The moving guide rail 2 moves the entire adjustment assembly 3 and the air blower head 14 to the side of the visual inspection camera 12 and the illumination lamp 13. Subsequently, triggered by the guide 5, the adjustment assembly 3 automatically adjusts to a preset height and angle, allowing the air blower head 14 to precisely align with the mirror surface and spray gas to blow away the lint and dust adhering to it.
[0019] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the movable guide rail 2 includes a fixed frame 21 fixedly installed on the top of the inner cavity of the sunshade 11. A lead screw 22 is rotatably provided inside the fixed frame 21. A slider 23 is threadedly connected to the lead screw 22. A motor 24 is fixedly provided at the end of the fixed frame 21. The output end of the motor 24 is fixedly connected to the end of the lead screw 22.
[0020] In this embodiment, the fixing frame 21 serves as a guide rail base, fixed to the top of the sunshade 11, and supports the lead screw 22 and the slider 23. The lead screw 22 is threadedly connected to the slider 23, converting the rotational motion of the motor 24 into the linear motion of the slider 23. The slider 23 is connected to the adjustment assembly 3, driving the air blowing head 14 to move laterally. The motor 24 drives the lead screw 22 to rotate, providing power for the movement of the slider 23. After the motor 24 starts, the lead screw 22 rotates, and the slider 23 moves laterally along the fixing frame 21, causing the air blowing head 14 to move laterally within the mirror area of the visual inspection camera 12 and the illumination lamp 13, achieving lateral coverage of the cleaning range.
[0021] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the adjustment component 3 includes a connecting frame 31 fixedly installed on the lower surface of the slider 23, a movable frame 32 vertically sliding on the connecting frame 31, a rotating shaft 33 rotatably provided at the lower end of the movable frame 32, the rotating shaft 33 being fixedly connected to the outer wall of the air blowing head 14, and height and angle adjustment control components provided on the connecting frame 31 and the movable frame 32, and a guide component 5 for driving the control components is provided inside the sunshade 11.
[0022] In this embodiment, the connecting frame 31 is fixed to the lower surface of the slider 23, serving as the mounting base for the entire adjustment assembly 3. The movable frame 32 is the core moving component, capable of sliding up and down relative to the connecting frame 31 to achieve height adjustment. The rotating shaft 33 is mounted on the lower end of the movable frame 32 and can rotate freely. The air blowing head 14 is fixed to it, and the rotation of the rotating shaft 33 directly changes the angle of the air blowing head 14. The control component provides an elastic restoring force for the movable frame 32 and the rotating shaft 33. The guide component 5 refers to the cylinder 51 and the guide rod 52, which is the external drive mechanism that triggers the action of the adjustment assembly 3. This assembly itself is passive, and its action is triggered by the guide component 5.
[0023] In the specific implementation process, such as Figure 3 and Figure 4 As shown, the control component includes two fixed springs 4 and two torsion springs 42. The upper ends of the two springs 4 are fixedly installed in the grooves on both sides of the connecting frame 31, and the lower ends of the two springs 4 are fixedly connected to the upper surface of the moving frame 32. The ends of the two torsion springs 42 are fixedly installed on both sides of the outer wall of the moving frame 32, and the other ends of the two torsion springs 42 are fixedly connected to the rotating shaft 33. A guide plate 41 is fixedly provided on one side of the moving frame 32.
[0024] In this embodiment, spring 4 provides vertical elastic force to keep the movable frame 32 at a stable height. Torsion spring 42 provides rotational elastic force to keep the rotating shaft 33 at a stable angle and prevent the air blowing head 14 from deviating. Guide plate 41 cooperates with guide rod 52 to transmit external adjustment force, realizing automatic height and angle adjustment.
[0025] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the guide member 5 includes a cylinder 51 fixedly installed on the top of the inner cavity of the sunshade 11, and a guide rod 52 is horizontally fixed at the output end of the cylinder 51.
[0026] In this embodiment, when the moving guide rail 2 drives the air blowing head 14 to move laterally, the end of the air blowing head 14 contacts the inclined surface of the end of the guide rod 52. The air blowing head 14 moves along the inclined surface of the guide rod 52 to the upper surface. The air blowing head 14 then rotates along the moving frame 32 via the rotating shaft 33, causing the air blowing head 14 to tilt and align with the mirror surfaces of the visual inspection camera 12 and the illumination lamp 13. The cylinder 51 drives the guide rod 52 to move upward. When the air blowing head 14 moves, the guide plate 41 contacts the inclined surface of the end of the guide rod 52. The guide plate 41 moves along the inclined surface to the upper surface, and the guide plate 41 drives the connecting frame 31 to move upward along the moving frame 32, changing the height of the air blowing head 14 so that the air blowing head 14 is parallel to the mirror surfaces of the visual inspection camera 12 and the illumination lamp 13. The mirror surfaces of the visual inspection camera 12 and the illumination lamp 13 are cleaned in two directions.
[0027] In the specific implementation process, such as Figure 1 and Figure 2As shown, a conveyor line 6 is fixedly installed inside the frame 1. The conveyor line 6 is located below the sunshade 11. The conveyor line 6 is usually a belt conveyor line 6 or a roller conveyor line 6, used to carry and transport the fabric patch.
[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A fabric patch visual inspection device, comprising a frame (1), a sunshade (11) fixedly installed inside the frame (1), and a visual inspection camera (12) and an illumination lamp (13) installed side by side on the top of the inner cavity of the sunshade (11), characterized in that: The top of the inner cavity of the sunshade (11) is provided with a horizontally extending movable guide rail (2). The slider (23) of the movable guide rail (2) is connected to an adjustable component (3) that can adjust the height and angle. The end of the adjustable component (3) is connected to an air blowing head (14), and the air blowing end of the air blowing head (14) is set towards the mirror side of the visual inspection camera (12) and the illumination lamp (13).
2. The fabric patch visual inspection device according to claim 1, characterized in that: The movable guide rail (2) includes a fixed frame (21) fixedly installed on the top of the inner cavity of the sunshade (11). A lead screw (22) is rotatably provided inside the fixed frame (21). The slider (23) is threadedly connected to the lead screw (22). A motor (24) is fixedly provided at the end of the fixed frame (21). The output end of the motor (24) is fixedly connected to the end of the lead screw (22).
3. The fabric patch visual inspection device according to claim 1, characterized in that: The adjustment assembly (3) includes a connecting frame (31) fixedly installed on the lower surface of the slider (23), a movable frame (32) is vertically slidably provided on the connecting frame (31), a rotating shaft (33) is rotatably provided at the lower end of the movable frame (32), the rotating shaft (33) is fixedly connected to the outer wall of the air blowing head (14), and height and angle adjustment control components are provided on the connecting frame (31) and the movable frame (32), and a guide component (5) for driving the control component is provided inside the sunshade (11).
4. The fabric patch visual inspection device according to claim 3, characterized in that: The control component includes two fixed springs (4) and two torsion springs (42). The upper ends of the two springs (4) are fixedly installed in the grooves on both sides of the connecting frame (31). The lower ends of the two springs (4) are fixedly connected to the upper surface of the moving frame (32). The ends of the two torsion springs (42) are fixedly installed on both sides of the outer wall of the moving frame (32). The other ends of the two torsion springs (42) are fixedly connected to the rotating shaft (33). A guide plate (41) is fixedly provided on one side of the moving frame (32).
5. The fabric patch visual inspection device according to claim 3, characterized in that: The guide (5) includes a cylinder (51) fixedly installed on the top of the inner cavity of the sunshade (11), and a guide rod (52) is fixedly provided laterally at the output end of the cylinder (51).
6. The fabric patch visual inspection device according to claim 1, characterized in that: The frame (1) is fixedly provided with a conveyor line (6), which is located below the sunshade (11).