A printed matter quality control device combining multi-angle light source detection

Abstract

The application relates to the technical field of printed matter quality detection, in particular to a printed matter quality control device combining multi-angle light source detection, which comprises a light source adjusting module, a detection platform and a support frame. The light source adjusting module is connected with the support frame through an angle adjusting assembly, the irradiation direction and position of a light source assembly can be flexibly adjusted, the detection platform is connected with the support frame through sliding rails, and the carrying plate can be conveniently moved. The application can improve the detection capacity for the surface detail features of complex printed matters through multi-angle light source layout and mechanical structure optimization, reduce environmental light interference, adapt to the detection requirements of printed matters with different materials, and significantly improve the comprehensiveness and accuracy of detection.

Description

Technical Field

[0001] This utility model belongs to the field of printing quality inspection technology, specifically a printing quality control device that combines multi-angle light source detection. Background Technology

[0002] In the printing production process, quality inspection is a crucial step in ensuring that products meet standards. Currently, some printing quality inspection devices based on optical imaging and image analysis technologies have emerged on the market. However, these devices typically rely on a single-angle light source for inspection, making it difficult to comprehensively reflect the detailed features of the printed surface. Furthermore, the mechanical structure design of existing equipment is mostly focused on a fixed light source layout, lacking flexibility and unable to adjust the angle and position of the light source according to the different materials and process requirements of the printed materials.

[0003] For example, some existing print inspection devices achieve their inspection function through a fixed bracket and a single light source module. These typically include a base, a light source assembly, and an inspection platform. The light source assembly is fixedly mounted on top of the bracket, while the inspection platform is connected to the base via a slide rail. While this design can meet basic inspection needs, it often struggles to detect subtle defects, such as unevenness or color deviations, when dealing with complex printed materials. This demonstrates that existing technologies have certain limitations in terms of light source layout and mechanical mechanism design.

[0004] Therefore, we have made improvements to this by proposing a print quality control device that combines multi-angle light source detection. Utility Model Content

[0005] The purpose of this invention is to solve the problems of the single light source layout and lack of flexibility in the mechanical structure of existing printing quality inspection equipment, and to provide a printing quality control device that combines multi-angle light source detection to improve the detection capability of complex surface details of printed materials.

[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model proposes a printing quality control device combining multi-angle light source detection, comprising a light source adjustment module, a detection platform, and a support frame. The light source adjustment module is connected to the support frame via a rotation mechanism, and the detection platform is fixedly installed at the bottom of the support frame. The light source adjustment module includes multiple light source components and an angle adjustment component. The angle adjustment component is used to adjust the irradiation direction and position of the light source components. The light source adjustment module, through the cooperation of the angle adjustment component and the support frame, enables light irradiation of the printed surface at different angles.

[0007] The light source assembly includes a light-emitting unit and a lens group. The light-emitting unit is fixedly installed inside the light source housing. The lens group is located at the front opening of the light source housing and is axially aligned with the light-emitting unit. The rear end of the light source housing is provided with a connecting seat. The connecting seat is connected to the rotating shaft of the angle adjustment assembly by a thread. The angle adjustment assembly includes a rotating shaft and a limiting block. One end of the rotating shaft is fixedly connected to the connecting seat of the light source housing, and the other end passes through the limiting block and cooperates with a bearing provided on the inner wall of the limiting block. The limiting block is fixedly installed on the top crossbeam of the support frame. A scale is provided on the outer periphery of the rotating shaft. The scale is used to indicate the rotation angle of the light source assembly.

[0008] As a preferred technical solution of this application, the angle adjustment component further includes a locking component, which includes a bolt and a pressure plate. The bolt passes through the pressure plate and engages with a threaded hole on the limiting block. The bottom surface of the pressure plate is provided with a rubber pad layer, which contacts the outer periphery of the rotating shaft. By tightening the bolt, the pressure plate presses the rotating shaft, thereby fixing the angle position of the light source component.

[0009] As a preferred technical solution of this application, the testing platform includes a support plate and a sliding guide rail. The support plate is connected to the bottom of the support frame through the sliding guide rail. The sliding guide rail includes two parallel guide rail grooves. A ball bearing slider is provided on the inner side of the guide rail groove. The ball bearing slider is fixedly connected to the bottom of the support plate. The top surface of the support plate is provided with anti-slip texture, which is used to prevent the printed matter from shifting during the testing process.

[0010] As a preferred technical solution of this application, the support frame includes columns and beams. The bottom of the columns is provided with a base, which is fixedly connected to the ground by bolts. The two ends of the beam are welded to the tops of the two columns respectively. A through hole is opened in the middle of the beam, and a reinforcing rib is provided on the inner wall of the through hole. The reinforcing rib is used to enhance the structural strength of the beam. The top of the beam is provided with an installation groove, which is used to fix the limiting block.

[0011] As a preferred technical solution of this application, the light source adjustment module further includes a linkage rod. One end of the linkage rod is fixedly connected to the end of the rotating shaft, and the other end is connected to the end of the rotating shaft of the adjacent light source assembly through a hinge. The length of the linkage rod is adjustable, and the relative angle between the adjacent light source assemblies can be changed by adjusting the length of the linkage rod.

[0012] As a preferred technical solution of this application, the top of the support frame is also provided with a light shield, which is connected to the crossbeam by a buckle. The inner wall of the light shield is coated with a light-absorbing coating, which is used to reduce the interference of ambient light on the detection results.

[0013] As a preferred technical solution of this application, a filter is provided at the front opening of the light source housing. The filter is connected to the light source housing through a slot. The filter is used to filter light of a specific wavelength, thereby adapting to the detection needs of printed materials of different materials.

[0014] Compared with the prior art, the technical effects of this utility model are as follows:

[0015] By incorporating a light source adjustment module and angle adjustment components, the illumination direction and position of the light source components can be flexibly adjusted, solving the problem of the monotonous light source layout in traditional inspection equipment. The rotating shaft in the angle adjustment component works in conjunction with a limit block, precisely controlling the rotation angle of the light source components via a dial, while locking components secure the position of the light source components, ensuring the stability of the inspection process. The linkage design further enhances the synergy between the light source components, enabling rapid adjustments to the light source layout according to inspection needs. Furthermore, the introduction of light shields and filters effectively reduces ambient light interference and adapts to the inspection requirements of printed materials of different types. The inspection platform is connected to the support frame via sliding guide rails, facilitating the movement of the support plate and improving operational convenience. Through optimized mechanical structures, the overall design significantly improves the comprehensiveness and accuracy of printed material quality inspection, providing reliable technical support for the surface detail inspection of complex printed materials. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model, showing the layout relationship of the light source adjustment module, the detection platform and the support frame, as well as the connection method between the light shield and the crossbeam.

[0017] Figure 2 This is a structural diagram of the light source adjustment module, highlighting the structural details of the light source component, angle adjustment component, and linkage rod, where the cooperation between the rotating shaft and the limit block is clearly visible.

[0018] Figure 3 This is a structural diagram of the testing platform, showing how the load-bearing plate is connected to the bottom of the support frame via sliding guide rails, highlighting the anti-slip texture design.

[0019] Figure 4 The diagram shows a partial structural illustration of the crossbeam supporting the frame, detailing the arrangement of the mounting slots and through holes.

[0020] Figure 5 This is a detailed view of the front opening of the light source housing, showing how the filter is connected to the light source housing via a slot.

[0021] The attached figures are labeled as follows:

[0022] 1. Light source adjustment module; 2. Detection platform; 3. Support frame; 4. Light source assembly; 5. Angle adjustment assembly; 6. Bearing plate; 7. Sliding guide rail; 8. Crossbeam; 9. Limit block; 10. Rotation shaft; 11. Linkage rod; 12. Light shield; 13. Filter; 14. Lens group; 15. Light emission unit; 16. Light source housing; 17. Locking component. Detailed Implementation

[0023] This utility model discloses a printing quality control device that combines multi-angle light source detection, the specific implementation of which is as follows. Figure 1 As shown, the overall structure includes a light source adjustment module 1, a detection platform 2, and a support frame 3. The light source adjustment module 1 is connected to the support frame 3 via a rotating mechanism. The detection platform 2 is fixedly installed at the bottom of the support frame 3. The light source adjustment module 1 includes multiple light source components 4 and an angle adjustment component 5. The angle adjustment component 5 is used to adjust the illumination direction and position of the light source components 4. The light source adjustment module 1, through the cooperation of the angle adjustment component 5 and the support frame 3, enables the light source to illuminate the surface of the printed material at different angles.

[0024] The light source assembly 4 includes a light-emitting unit 15 and a lens group 14. The light-emitting unit 15 is fixedly installed inside the light source housing 16, and the lens group 14 is located at the front opening of the light source housing 16 and axially aligned with the light-emitting unit 15. A connecting seat is provided at the rear end of the light source housing 16, and the connecting seat is threadedly connected to the rotating shaft 10 of the angle adjustment assembly 5. The angle adjustment assembly 5 includes a rotating shaft 10 and a limiting block 9. One end of the rotating shaft 10 is fixedly connected to the connecting seat of the light source housing 16, and the other end passes through the limiting block 9 and engages with a bearing provided on the inner wall of the limiting block 9. The limiting block 9 is fixedly installed on the top crossbeam 8 of the support frame 3. A scale is provided on the outer periphery of the rotating shaft 10, and the scale is used to indicate the rotation angle of the light source assembly 4. Figure 2 As shown, the cooperation between the rotating shaft 10 and the limiting block 9 is clearly visible. The rotating shaft 10 achieves flexible rotation through the bearing, while the dial ensures that the angle adjustment of the light source assembly 4 is accurate.

[0025] The angle adjustment assembly 5 also includes a locking element 17, which comprises a bolt and a pressure plate. The bolt passes through the pressure plate and engages with a threaded hole on the limiting block 9. A rubber pad is provided on the bottom surface of the pressure plate, which contacts the outer periphery of the rotating shaft 10. Tightening the bolt presses the pressure plate against the rotating shaft 10, thereby fixing the angular position of the light source assembly 4. This design ensures that the light source assembly 4 remains stable after being adjusted to a suitable angle, preventing angular deviation caused by external vibration or improper operation.

[0026] The testing platform 2 includes a support plate 6 and a sliding guide rail 7. The support plate 6 is connected to the bottom of the support frame 3 via the sliding guide rail 7. The sliding guide rail 7 includes two parallel guide grooves, and a ball bearing slider is provided on the inner side of the guide groove. The ball bearing slider is fixedly connected to the bottom of the support plate 6. Figure 3 As shown, the top surface of the support plate 6 is provided with anti-slip texture. The anti-slip texture design can effectively prevent the printed matter from shifting during the inspection process, thereby ensuring the accuracy of the inspection results. The design of the sliding guide rail 7 allows the support plate 6 to move smoothly at the bottom of the support frame 3, making it easy to place the printed matter in the appropriate inspection position.

[0027] The supporting frame 3 includes columns and beams 8. The columns have bases at their bottoms, which are fixed to the ground by bolts. The two ends of the beams 8 are welded to the tops of the two columns respectively. Figure 4 As shown, a through hole is provided in the middle of the crossbeam 8, and reinforcing ribs are provided on the inner wall of the through hole to enhance the structural strength of the crossbeam 8. A mounting groove is provided at the top of the crossbeam 8 for fixing the limiting block 9. This design not only improves the overall stability of the support frame 3 but also provides a reliable support foundation for the installation of the angle adjustment assembly 5.

[0028] The light source adjustment module 1 also includes a linkage rod 11. One end of the linkage rod 11 is fixedly connected to the end of the rotating shaft 10, and the other end is connected to the end of the rotating shaft 10 of the adjacent light source assembly 4 via a hinge. The length of the linkage rod 11 is adjustable, and the relative angle between adjacent light source assemblies 4 can be changed by adjusting the length of the linkage rod 11. Figure 2 As shown, the design of the linkage 11 enables multiple light source components 4 to work together and quickly adjust the light source layout according to the detection requirements, thereby improving detection efficiency.

[0029] A light shield 12 is also provided on the top of the support frame 3, and the light shield 12 is connected to the crossbeam 8 by a snap-fit. The inner wall of the light shield 12 is coated with a light-absorbing coating, which is used to reduce the interference of ambient light on the detection results. The design of the light shield 12 can effectively isolate the influence of external light and ensure stable and reliable light conditions during the detection process.

[0030] A filter 13 is provided at the front opening of the light source housing 16, and the filter 13 is connected to the light source housing 16 via a slot. Figure 5 As shown, filter 13 is used to filter light of a specific wavelength, thereby adapting to the inspection needs of printed materials of different materials. The design of filter 13 allows the device to select a suitable filter according to the material characteristics of different printed materials, further improving the flexibility and adaptability of the inspection.

[0031] In practical applications, the printed material to be inspected is first placed on the carrier plate 6, and the position of the carrier plate 6 is adjusted using the sliding guide rail 7 to center the printed material in the inspection area. Then, based on the surface characteristics of the printed material and the inspection requirements, the illumination angle and position of the light source assembly 4 are adjusted. By rotating the rotating shaft 10, the light source assembly 4 is adjusted to a suitable angle, and the angle value is confirmed using a dial. After adjustment, the angle position of the light source assembly 4 is fixed using the locking member 17 to ensure its stability during the inspection process. If it is necessary to adjust the relative angles between multiple light source assemblies 4, this can be achieved by adjusting the length of the linkage rod 11.

[0032] Throughout the testing process, the light shield 12 effectively isolates external light interference, ensuring stable lighting conditions in the testing environment. Simultaneously, based on the material characteristics of the printed material, a suitable filter 13 can be installed at the front opening of the light source housing 16 to filter specific wavelengths of light, thereby improving the accuracy and adaptability of the testing. Finally, through the above steps, a comprehensive inspection of the surface details of the printed material is completed, ensuring the reliability and accuracy of the test results.

[0033] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0034] In actual operation, the printed material to be inspected is first placed on the carrier plate 6. The carrier plate 6 is connected to the bottom of the support frame 3 via a sliding guide rail 7. The design of the sliding guide rail 7 allows the carrier plate 6 to move smoothly within two parallel guide rail grooves. A ball bearing slider is embedded in the guide rail groove and fixedly connected to the bottom of the carrier plate 6, thus ensuring high stability and positioning accuracy of the carrier plate 6 during movement. After the printed material is placed on the carrier plate 6, the position of the printed material is adjusted by pushing the carrier plate 6 along the sliding guide rail 7, ensuring it is centered in the inspection area. The top surface of the carrier plate 6 is designed with anti-slip textures, which effectively prevent the printed material from shifting during inspection, thereby ensuring the reliability of the inspection results.

[0035] Subsequently, the illumination angle and position of the light source assembly 4 are adjusted according to the surface characteristics of the printed matter and the inspection requirements. For example... Figure 2As shown, the angle adjustment of the light source assembly 4 is achieved by the cooperation of the rotating shaft 10 and the limiting block 9. One end of the rotating shaft 10 is fixedly connected to the connecting seat of the light source housing 16, and the other end passes through the limiting block 9 and cooperates with the bearing provided on the inner wall of the limiting block 9. When the rotating shaft 10 is rotated, the light source assembly 4 rotates accordingly, and its angle change can be accurately read through the scale on the outer circumference of the rotating shaft 10. The design of the scale provides the operator with an intuitive angle reference, ensuring that the adjustment of the light source assembly 4 has high precision. After the angle adjustment is completed, the position of the light source assembly 4 is fixed by the locking component 17. The locking component 17 includes a bolt and a pressure plate. The bolt passes through the pressure plate and cooperates with the threaded hole on the limiting block 9. The bottom surface of the pressure plate is provided with a rubber pad. When the bolt is tightened, the pressure plate presses the rotating shaft 10, thereby achieving a stable lock of the light source assembly 4. This design can ensure the stability of the light source assembly 4 during the detection process and avoid angle deviation caused by external vibration or improper operation.

[0036] For complex detection tasks requiring multiple light sources to work together, the relative angles between multiple light source components 4 can be adjusted via the linkage 11. For example... Figure 2 As shown, one end of the linkage rod 11 is fixedly connected to the end of the rotating shaft 10, and the other end is connected to the end of the rotating shaft 10 of the adjacent light source assembly 4 via a hinge. The length of the linkage rod 11 is adjustable. By changing the length of the linkage rod 11, the relative angle between adjacent light source assemblies 4 can be quickly adjusted to meet different detection requirements. For example, when detecting printed materials with raised or recessed textures, the linkage rod 11 can be adjusted to form a specific combination of illumination angles among multiple light source assemblies 4 to highlight the detailed features of the printed surface.

[0037] Throughout the entire testing process, the design of the light shield 12 plays a crucial role. The light shield 12 is connected to the crossbeam 8 via clips, and its inner wall is coated with a light-absorbing coating, effectively reducing the interference of ambient light on the testing results. The presence of the light shield 12 ensures stable and reliable lighting conditions in the testing environment, preventing external light from affecting the quality of optical imaging. Furthermore, a filter 13 is provided at the front opening of the light source housing 16. The filter 13 is connected to the light source housing 16 via a slot and is used to filter light of specific wavelengths. Figure 5 As shown, the lens group 14 is located at the front opening of the light source housing 16 and is axially aligned with the light-emitting unit 15. The filter 13 is installed in front of the lens group 14. By selecting a suitable filter 13, the inspection requirements of printed materials of different materials can be met. For example, for highly reflective metal printed materials, a filter 13 that can filter light of a specific wavelength can be selected to reduce the influence of surface reflection on the inspection results.

[0038] The structural design of testing platform 2 also ensures ease of operation. For example... Figure 3As shown, the sliding guide rail 7 includes two parallel guide rail grooves, with ball bearing sliders located inside the guide rail grooves. These ball bearing sliders are fixedly connected to the bottom of the support plate 6. This design allows the support plate 6 to move smoothly at the bottom of the support frame 3, facilitating the placement of printed materials in the appropriate inspection position. Meanwhile, the columns and crossbeams 8 of the support frame 3 are connected by welding. The inner wall of the through-hole in the middle of the crossbeam 8 is equipped with reinforcing ribs, enhancing the overall structural strength. The mounting groove at the top of the crossbeam 8 is used to fix the limiting block 9, providing a reliable support base for the installation of the angle adjustment assembly 5.

[0039] Ultimately, through flexible adjustments to the light source assembly 4, the isolation provided by the light shield 12, and the selective filtering by the filter 13, comprehensive inspection of the surface details of the printed matter was achieved. These steps ensured the reliability and accuracy of the inspection results, significantly improving the efficiency and precision of quality inspection for complex printed materials.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A printing quality control device combining multi-angle light source detection, characterized in that, The system includes a light source adjustment module (1), a detection platform (2), and a support frame (3). The light source adjustment module (1) is connected to the support frame (3) via a rotating mechanism. The detection platform (2) is fixedly installed at the bottom of the support frame (3). The light source adjustment module (1) includes multiple light source components (4) and an angle adjustment component (5). The angle adjustment component (5) is used to adjust the illumination direction and position of the light source components (4). The light source components (4) include a light-emitting unit (15) and a lens group (14). The light-emitting unit (15) is fixedly installed inside the light source housing (16). The lens group (14) is located at the front opening of the light source housing (16) and is axially aligned with the light-emitting unit (15). The rear end of the light source housing (16) is provided with a connecting seat. The connecting seat is connected to the rotating shaft (10) of the angle adjustment component (5) via a thread.

2. The printed matter quality control device combining multi-angle light source detection according to claim 1, characterized in that, The angle adjustment assembly (5) includes a rotating shaft (10) and a limiting block (9). One end of the rotating shaft (10) is fixedly connected to the connecting seat of the light source housing (16), and the other end passes through the limiting block (9) and cooperates with the bearing provided on the inner wall of the limiting block (9). The limiting block (9) is fixedly installed on the top crossbeam (8) of the support frame (3). The outer periphery of the rotating shaft (10) is provided with a scale. The angle adjustment assembly (5) also includes a locking component (17). The locking component (17) includes a bolt and a pressure plate. The bolt passes through the pressure plate and cooperates with the threaded hole on the limiting block (9). The bottom surface of the pressure plate is provided with a rubber pad layer, and the rubber pad layer contacts the outer periphery of the rotating shaft (10).

3. The printed matter quality control device combining multi-angle light source detection according to claim 1, characterized in that, The testing platform (2) includes a support plate (6) and a sliding guide rail (7). The support plate (6) is connected to the bottom of the support frame (3) through the sliding guide rail (7). The sliding guide rail (7) includes two parallel guide rail grooves. A ball slider is provided on the inner side of the guide rail groove. The ball slider is fixedly connected to the bottom of the support plate (6). The top surface of the support plate (6) is provided with anti-slip texture.

4. The printed matter quality control device combining multi-angle light source detection according to claim 1, characterized in that, The support frame (3) includes columns and beams (8). The bottom of the column is provided with a base, which is fixedly connected to the ground by bolts. The two ends of the beam (8) are welded to the top of the two columns respectively. The middle part of the beam (8) is provided with a through hole, and the inner wall of the through hole is provided with reinforcing ribs. The top of the beam (8) is provided with an installation groove, which is used to fix the limiting block (9).

5. The printed matter quality control device combining multi-angle light source detection according to claim 1, characterized in that, The light source adjustment module (1) also includes a linkage rod (11). One end of the linkage rod (11) is fixedly connected to the end of the rotating shaft (10), and the other end is connected to the end of the rotating shaft (10) of the adjacent light source assembly (4) via a hinge. The length of the linkage rod (11) is adjustable.

6. The printed matter quality control device combining multi-angle light source detection according to claim 1, characterized in that, The top of the support frame (3) is also provided with a light shield (12), which is connected to the crossbeam (8) by a buckle, and the inner wall of the light shield (12) is coated with a light-absorbing coating.

7. The printed matter quality control device combining multi-angle light source detection according to claim 1, characterized in that, A filter (13) is provided at the front opening of the light source housing (16), and the filter (13) is connected to the light source housing (16) through a slot.

8. A printing quality control device combining multi-angle light source detection according to claim 3, characterized in that, The inner side of the guide groove of the sliding guide rail (7) is provided with a ball slider, and the ball slider is fixedly connected to the bottom of the bearing plate (6).

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