Transparent drum double-sided light source line scanning visual inspection device

Abstract

The utility model discloses a transparent drum double-sided light source line scanning visual detection device which comprises a detection support. The detection wheel mechanism comprises a rotary drum motor and a detection rotary drum which are arranged on the detection support, and the detection rotary drum is arranged in a transparent mode; the visual detection mechanism comprises a plurality of detection camera assemblies which are arranged in a staggered manner and face the detection rotary drum; the detection camera assembly comprises a camera, a switching cylinder and a lens which are arranged at one end of the camera, an arc-shaped backlight source which is arranged in a detection rotating cylinder and corresponds to the detection camera, and a positive light source which is correspondingly arranged in front of the lens of each detection camera. The detection device is simple in structure, easy and convenient to operate and high in detection precision, comprehensive and accurate detection of the flexible thin film material winding tape is achieved, various defects in the thin film circuit material winding tape can be efficiently and accurately recognized, and therefore the detection precision and the detection efficiency are improved, and the defective product rate is reduced.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a transparent rotating cylinder double-sided light source line scan visual inspection device. Background Technology

[0002] In the field of modern industrial automation, with the continuous advancement of manufacturing technology and increasingly stringent requirements for product quality, precise inspection of various materials on the production line has become an indispensable part. Especially in the production and processing of flexible materials (such as thin-film circuits, fabrics, paper, and plastic strips), an effective vision inspection system can promptly detect and remove defective products, ensuring the quality and consistency of the final product, thereby significantly improving production efficiency and reducing costs.

[0003] Traditional visual inspection systems for flexible strip materials often use cameras positioned in a fixed location for imaging. These systems are frequently limited by their light source configuration, employing either front lighting (direct illumination from the front of the object being inspected) or back lighting (illumination through the object from behind). Front lighting effectively reveals the texture and color information of the object's surface, but its ability to detect internal defects in transparent or semi-transparent materials is limited. Back lighting, on the other hand, effectively highlights internal defects, bubbles, and foreign objects, but may not be as clear as it can of capturing subtle surface features. Therefore, a single light source configuration often cannot meet the complex and ever-changing inspection requirements.

[0004] Furthermore, considering the high-speed, continuous production characteristics of flexible strip materials, traditional vision inspection systems often use area scan cameras for imaging. While these cameras can cover a wide field of view, they may encounter problems such as insufficient frame rate and image blurring when processing high-speed moving materials, affecting inspection accuracy and efficiency. Cameras, as devices specifically designed for high-speed scanning imaging, can achieve clear imaging of fast-moving objects while maintaining high resolution through line-by-line scanning, making them ideal for dynamic inspection scenarios involving flexible strip materials. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a transparent rotating cylinder double-sided light source line scan visual inspection device to solve the problems mentioned in the background.

[0006] This utility model provides a transparent rotating cylinder double-sided light source line scan visual inspection device, comprising:

[0007] Test bracket;

[0008] The detection wheel mechanism includes a rotary motor and a detection rotary drum mounted on the detection bracket, wherein the detection rotary drum is transparent.

[0009] The visual inspection mechanism comprises a plurality of inspection camera assemblies arranged in a staggered manner and arranged towards the inspection drum; the inspection camera assembly comprises a camera, an adapter tube and a lens arranged at one end of the camera, an arc-shaped backlight source arranged inside the inspection drum corresponding to the inspection camera, and a front light source arranged in front of the lens of each inspection camera.

[0010] Preferably, the inspection mechanism further comprises a fine adjustment assembly for adjusting the distance between the inspection camera assembly and the inspection drum, the fine adjustment assembly comprising a linear guide rail arranged on the inspection support, a sliding block arranged on the linear guide rail, a fine adjustment motor arranged below the sliding block for driving the sliding block to move along the linear guide rail, and a lead screw module arranged at the output end of the fine adjustment motor, and the inspection camera assembly is arranged on the lead screw module.

[0011] Preferably, the inspection wheel mechanism comprises an inspection drum arranged in a hollow manner, a rotating shaft arranged inside the inspection drum, a shaft fixing sleeve arranged outside the rotating shaft, a first inner wheel and a second inner wheel arranged on the shaft fixing sleeve, and a drum cover plate connecting the rotating shaft and the inspection drum, and the backlight source is arranged on the first inner wheel and the second inner wheel.

[0012] Preferably, the shaft fixing sleeve and the drum cover plate are provided with rolling bearings.

[0013] Preferably, one end of the shaft fixing sleeve is fixedly connected with the inspection support.

[0014] Preferably, the inspection mechanism further comprises a pressing roller assembly arranged on both sides of the inspection drum, respectively, and the pressing roller assembly is used for tightly attaching the film to the inspection drum.

[0015] Preferably, the pressing roller assembly comprises a mounting frame, an adjusting guide rod arranged on the mounting frame, an adjusting block arranged on the adjusting guide rod, an adjusting screw arranged on the adjusting block, a pressing spring arranged at one end of the adjusting screw, and a pressing roller arranged at the other end of the pressing spring.

[0016] Preferably, the front light source comprises a coaxial light source and a ring-shaped light source arranged in front of the lens of each inspection camera.

[0017] Advantages

[0018] The utility model provides a kind of transparent rotating cylinder double-sided light source line scanning visual inspection device, comprising: detection support, detection wheel mechanism, visual inspection mechanism;Adopt positive light source and back light source, solve the prior art more single light source configuration is used, cannot meet the overall detection demand of flexible film circuit material roll surface and internal defect simultaneously.Positive light source can not effectively detect internal defect, and back light source can be difficult to capture surface feature due to the influence of light penetration and material thickness problem.The utility model structure is simple, easy to operate, and detection precision is high, realize the comprehensive and accurate detection of flexible film material roll belt, can efficiently and accurately identify various defects in film circuit material roll belt, to improve detection precision and detection efficiency, reduce defective rate. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural schematic diagram of the utility model;

[0020] Figure 2 It is Figure 1 The structural schematic diagram of visual inspection mechanism of embodiment;

[0021] Figure 3 It is the structural schematic diagram of detection camera assembly;

[0022] Figure 4 It is Figure 1 The structural schematic diagram of detection wheel mechanism of embodiment;

[0023] Figure 5 It is the structural schematic diagram of compression roller assembly;

[0024] Wherein, 10, detection support;20, detection wheel mechanism;21, rotating drum motor;22, detection rotating drum;23, rotating shaft;24, fixed shaft;25, first inner wheel;26, second inner wheel;27, rotating drum cover plate;28, compression roller assembly;281, mounting frame;282, adjusting guide rod;283, adjusting block;284, adjusting screw;285, compression spring;286, compression roller;29, rolling bearing;30, visual inspection mechanism;31, detection camera assembly;32, camera;33, adapter cylinder;34, lens;35, positive light source;351, coaxial light source;352, annular light source;36, back light source;37, fine adjustment assembly;371, linear slide rail;372, sliding block;373, fine adjustment motor;374, screw module;38, manual fine adjustment platform. DETAILED DESCRIPTION

[0025] The utility model will be described below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be noted that for those skilled in the art, without departing from the concept of the utility model, a number of variations and improvements can be made. These all belong to the protection scope of the utility model.

[0026] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] Reference Figures 1 to 5 The specific embodiments proposed by the utility model.

[0030] The utility model provides a kind of transparent rotating cylinder double-sided light source line scanning visual inspection device, comprising: detection support 10, detection wheel mechanism 20, visual inspection mechanism 30;The detection support 10 provides fixed mounting position;The detection wheel mechanism 20, including the rotating drum motor 21 and detection drum 22 being set on the detection support 10, the detection drum 22 is transparently arranged;The visual inspection mechanism 30, including a plurality of misplacement arrangement and the detection camera assembly 31 being set towards the detection drum 22;The detection camera assembly 31, including: camera 32, adapter barrel 33 and lens 34 being set in one end of camera 32, arc backlight 36 being set in the inside of detection drum 22 corresponding detection camera 32 arrangement and corresponding lens 34 front of each detection camera 32 The positive light source 35 of setting.The camera 32 adopts line scanning camera.Preferably, the positive light source 35 includes coaxial light source 351 and annular light source 352 corresponding to the front of each detection camera 32 Lens 34 setting.Adapter barrel 33 includes support ring and lens adapter ring, and the mechanical stability of lens 34 is improved by support ring, and coaxial light source 351 and annular light source 352 in front of lens 34 jointly constitute front light source, coaxial light source 351 provides basic lighting, and annular light source 352 carries out local enhancement or light supplement, and illumination uniformity can be further improved, while the contrast of image is enhanced, so that the details of the object to be detected are more clear, and the use of coaxial light source 351 and annular light source 352 can better highlight the outline of object while maintaining image clarity, enhance visual level, so that detection result is more intuitive and accurate.

[0031] In one embodiment, further comprising fine adjustment assembly 37 for adjusting the distance between detection camera assembly 31 and detection drum 22, fine adjustment assembly 37 includes linear slide rail 371 set on detection support 10, slider 372 set on linear slide rail 371, fine adjustment motor 373 set below slider 372 to drive the guided movement of slider 372 along linear guide rail, and lead screw module 374 set at the output end of fine adjustment motor 373, detection camera assembly 31 is set on lead screw module 374, in this embodiment, fine adjustment motor 373 adopts stepper motor, and the object distance between camera 32 and film roll on detection drum 22 can be adjusted for each detection camera assembly 31 through linear slide rail 371, slide rail and lead screw module 374, in another embodiment, fine adjustment assembly 37 further includes manual fine adjustment platform 38 to realize the independent adjustment of object distance of single detection camera assembly 31.

[0032] In one of the embodiments, the detection wheel mechanism 20 comprises an internally hollow detection drum 22, a rotating shaft 23 arranged inside the detection drum 22, a fixed shaft 24 arranged outside the rotating shaft 23, a first inner wheel 25 and a second inner wheel 26 arranged on the fixed shaft 24, and a drum cover plate 27 connecting the rotating shaft 23 and the detection drum 22, and the backlight source 36 is arranged on the first inner wheel 25 and the second inner wheel 26. In one of the embodiments, the fixed shaft 24 is fixed, and the backlight source 36 is projected on the flexible film through the detection drum 22. When the detection drum 22 rotates, the flexible film is driven to move, and since the backlight source 36 is arranged on the fixed shaft 24, the backlight source 36 is in a static state during operation, and the light position of the backlight source 36 is also fixed.

[0033] In one of the embodiments, the fixed shaft 24 and the drum cover plate 27 are provided with a rolling bearing 29. The drum cover plate 27 is fixedly arranged at both ends of the detection drum 22, and the drum cover plate 27 rotates with the detection drum 22.

[0034] In one of the embodiments, one end of the fixed shaft 24 is fixedly connected with the detection support 10.

[0035] In one of the embodiments, a pressing roller assembly 28 is further arranged on both sides of the detection drum 22, and the pressing roller assembly 28 is used to tightly adhere the film on the detection drum 22, so as to prevent the film from being warped and slipping during the detection process, and improve the detection precision of the visual detection mechanism 30.

[0036] In one of the embodiments, the pressing roller assembly 28 comprises a mounting frame 281, an adjusting guide rod 282 arranged on the mounting frame 281, an adjusting block 283 arranged on the adjusting guide rod 282, an adjusting screw 284 arranged on the adjusting block 283, a pressing spring 285 arranged at one end of the adjusting screw 284, and a pressing roller 286 arranged at the other end of the pressing spring 285. In this embodiment, the pressing roller 286 is made of polyurethane or silicone rubber material, and the pressing roller 286 tightly presses the two sides of the film during operation, so as to prevent the flexible film roll from being warped and rolled during the detection process.

[0037] Advantages

[0038] The transparent drum double-sided light source line scanning visual detection device has the advantages of simple structure, convenient operation, high detection precision, comprehensive and accurate detection of the flexible film circuit roll through the coaxial light source 351, the annular light source 352 and the backlight source 36, efficient and accurate identification of various defects in the film circuit roll, improved detection precision and detection efficiency, and reduced defective product rate.

[0039] The above is further detailed description of the utility model in combination with specific embodiments, and cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can also be made.

Claims

1. A transparent drum double-sided light source line-scan vision inspection apparatus, characterized in that, The utility model relates to a kind of film detection device, including: Detection support; Detection wheel mechanism, including setting on the detection support drum motor and detection drum, the detection drum is transparently arranged; Visual detection mechanism, including a plurality of misalignment arrangement and the detection camera assembly being arranged to the detection drum; The detection camera assembly includes: camera, adapter barrel and lens being arranged at one end of camera, arc-shaped backlight source being arranged in the detection drum inside corresponding detection camera arrangement and positive light source corresponding being arranged in front of the lens of each detection camera.

2. The transparent drum double-sided light source line-scan vision inspection apparatus of claim 1, wherein, Further including fine adjustment assembly adjusting the distance between the detection camera assembly and the detection drum, the fine adjustment assembly includes linear slide rail being arranged on the detection support, slider being arranged on linear slide rail, fine adjustment motor being arranged below slider and driving the guided movement of slider along linear guide rail, and lead screw module being arranged at the output end of fine adjustment motor, the detection camera assembly is arranged on the lead screw module.

3. The transparent drum double-sided light source line-scan vision inspection apparatus of claim 1, wherein, The detection wheel mechanism includes internally hollow detection drum, shaft being arranged in the detection drum, and fixed shaft being sleeved on the outside of the shaft, first inner wheel and second inner wheel being arranged on the fixed shaft, and drum cover plate being connected the shaft and detection drum, the backlight source is arranged on the first inner wheel and second inner wheel.

4. The transparent drum double-sided light source line-scan vision inspection apparatus of claim 3, wherein, The fixed shaft and the drum cover piece are provided with rolling bearing.

5. The transparent drum double-sided light source line-scan vision inspection apparatus of claim 3, wherein, One end of the fixed shaft is fixedly connected with the detection support.

6. The transparent drum double-sided light source line-scan vision inspection apparatus of claim 1, wherein, Further including pressing roller assembly being arranged on both sides of detection drum respectively, the pressing roller assembly is used for film to be tightly attached on the detection drum.

7. The transparent drum double-sided light source line-scan vision inspection apparatus of claim 6, wherein, The pressing roller assembly includes mounting bracket, adjusting guide rod being arranged on mounting bracket, adjusting block being arranged on adjusting guide rod, adjusting screw being arranged on adjusting block, pressing spring being arranged at one end of adjusting screw and pressing roller being arranged at the other end of pressing spring.

8. The transparent drum double-sided light source line-scan vision inspection apparatus of claim 1, wherein, The positive light source includes coaxial light source and annular light source being arranged in front of the lens of each detection camera.

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