Liquid leakage detection system at rubber plug of transparent cylindrical needle tube

Abstract

The utility model discloses a liquid leakage detection system at a rubber plug of a transparent cylindrical needle tube, which comprises an image acquisition module, two arc-shaped light sources and a rotating assembly, and the rotating assembly is used for bearing and driving at least one transparent cylindrical needle tube to rotate; the image acquisition module is positioned on one side of the transparent cylindrical needle tube and is used for acquiring an image at a rubber plug of the transparent cylindrical needle tube; the two arc-shaped light sources are located between the image acquisition module and the transparent cylindrical needle tube and are arranged up and down, and the arc-shaped light-emitting surfaces of the two arc-shaped light sources (2) are obliquely arranged towards a rubber plug of the transparent cylindrical needle tube; the two arc-shaped light sources are used for lighting the rubber plug of the transparent cylindrical needle tube from the upper direction and the lower direction. According to the utility model, the rotating assembly bears and drives the at least one transparent cylindrical needle tube to rotate, and the two arc-shaped light sources which are obliquely arranged up and down are used for lighting the rubber plugs of the transparent cylindrical needle tubes, so that the image acquisition module can simultaneously acquire images of the rubber plugs of the transparent cylindrical needle tubes for liquid leakage detection; the device is low in cost, easy to install and small in needed installation space, and has wide application prospects and market potential.

Description

Technical Field

[0001] The utility model relates to the technical field of machine vision detection, in particular to a liquid leakage detection system for a transparent cylindrical needle tube rubber plug. Background Art

[0002] With the rapid development of my country's medical industry and the mass production of medical devices, various transparent syringes are produced in the process of product materials and manufacturing process. After the syringe is made and injected with liquid, it is placed in the rubber plug. Due to the existence of one or more air gaps in the rubber plug, the liquid in the syringe will flow up into the air gap of the rubber plug due to the extrusion during the process of putting it into the rubber plug, so that part of the liquid remains in the air gap of the rubber plug, resulting in part of the space in the syringe not being completely filled with liquid. Such a syringe does not completely isolate the liquid in the syringe from the air, which will affect the normal progress and normal use of subsequent processes, so it is necessary to stably detect whether there is leakage at the rubber plug.

[0003] In the prior art, conventional lighting methods such as conventional front light sources are generally used to detect leakage at the syringe plug, and then software is used to identify whether there is leakage. This method has the following disadvantages:

[0004] 1. Conventional high-brightness linear light sources can only illuminate a single plane, and cannot detect multiple syringe plugs at the same time, and occupy a large space;

[0005] 2. If multiple needle tubes need to be tested at the same time, more conventional linear high-brightness lights are needed, which are more expensive and complicated to install, and require a larger space.

[0006] Therefore, it is necessary to improve the existing technology.

[0007] The above information is presented as background information only to assist with understanding the present disclosure and no determination or admission is made as to whether any of the above may be used as prior art with respect to the present disclosure. Utility Model Content

[0008] The utility model provides a liquid leakage detection system for a transparent cylindrical needle tube rubber plug to solve the problems existing in the prior art.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A transparent cylindrical needle tube rubber plug leakage detection system includes an image acquisition module, two arc-shaped light sources and a rotating component: wherein,

[0011] The rotating assembly is located on one side of the transparent cylindrical needle tube and is used to carry and drive at least one transparent cylindrical needle tube to rotate;

[0012] The image acquisition module is used to acquire an image of the rubber plug of the transparent cylindrical needle tube;

[0013] The two arc-shaped light sources are located between the image acquisition module and the transparent cylindrical needle tube, and are arranged up and down, and the arc-shaped light-emitting surfaces of the two arc-shaped light sources are inclined toward the rubber plug of the transparent cylindrical needle tube;

[0014] The two arc-shaped light sources are used to illuminate the rubber plug of the transparent cylindrical needle tube from two directions, upper and lower.

[0015] Furthermore, in the transparent cylindrical needle tube rubber plug leakage detection system, the arc-shaped luminous surface is a right-angled surface;

[0016] The arc-shaped light source is arranged obliquely toward the rubber plug of the transparent cylindrical needle tube.

[0017] Furthermore, in the transparent cylindrical needle tube rubber plug leakage detection system, the arc-shaped luminous surface is an inclined surface;

[0018] The arc-shaped light source is arranged perpendicular to the side wall of the transparent cylindrical needle tube.

[0019] Furthermore, in the liquid leakage detection system for the transparent cylindrical needle tube rubber plug, the inclination angle θ of the arc-shaped luminous surface relative to the transparent cylindrical needle tube is: 0°<θ<90°.

[0020] Furthermore, in the transparent cylindrical syringe plug leakage detection system, the image acquisition module includes a line scan camera and a lens.

[0021] Furthermore, in the transparent cylindrical syringe plug leakage detection system, the lens is a line scanning lens with a focal length of 50 mm, an object distance of 185±20 mm, and a field of view of 90 mm.

[0022] Furthermore, in the transparent cylindrical needle tube rubber plug leakage detection system, the distance between the two arc-shaped light sources and the transparent cylindrical needle tube is 50±10 mm.

[0023] Furthermore, in the transparent cylindrical syringe plug leakage detection system, the spacing distance between the two arc-shaped light sources is 80±20 mm.

[0024] Furthermore, in the transparent cylindrical syringe plug leakage detection system, the arc-shaped light source is a high-brightness linear polarized light source.

[0025] Furthermore, in the transparent cylindrical needle tube rubber plug leakage detection system, the rotating component includes a loading platform;

[0026] The loading platform is provided with a loading slot for placing the transparent cylindrical needle tube;

[0027] A rotating mechanism is arranged in the object loading tank.

[0028] Compared with the prior art, the utility model has the following beneficial effects:

[0029] The utility model provides a transparent cylindrical needle tube rubber plug leakage detection system, comprising an image acquisition module, two arc light sources and a rotating component. The rotating component carries and drives at least one transparent cylindrical needle tube to rotate, and two arc light sources arranged in an up-and-down tilt illuminate the rubber plug of the transparent cylindrical needle tube, so that the image acquisition module can simultaneously acquire images of the rubber plugs of several transparent cylindrical needle tubes for leakage detection. The utility model not only has low cost, but also is easy to install and requires a small installation space, and has broad application prospects and market potential.

[0030] The present invention has other characteristics and advantages, which will be apparent from the accompanying drawings and subsequent specific embodiments incorporated herein, or will be described in detail in the accompanying drawings and subsequent specific embodiments incorporated herein, which together are used to explain the specific principles of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 It is a structural (stereoscopic) schematic diagram of an image acquisition module provided by an embodiment of the utility model;

[0033] Figure 2 It is a schematic diagram of the structure of two arc-shaped light sources provided by an embodiment of the utility model in which they are arranged obliquely;

[0034] Figure 3 It is a schematic diagram of a structure in which two arc-shaped light sources provided by an embodiment of the utility model are arranged parallel to a horizontal plane;

[0035] Figure 4 It is a structural (stereoscopic) schematic diagram of an arc light source provided by an embodiment of the utility model;

[0036] Figure 5 It is a schematic diagram of the structure (front view) of the arc light source provided by an embodiment of the utility model;

[0037] Figure 6It is a schematic diagram of the structure (front view) of a liquid leakage detection system for a transparent cylindrical needle tube rubber plug provided by an embodiment of the utility model;

[0038] Figure 7 It is a schematic diagram of the structure (top view) of a liquid leakage detection system for a transparent cylindrical needle tube rubber plug provided in an embodiment of the utility model.

[0039] Reference numerals:

[0040] Image acquisition module 1, arc light source 2, arc light emitting surface 3, transparent cylindrical needle tube 4, rubber plug 5;

[0041] Line scan camera 11, lens 12. DETAILED DESCRIPTION

[0042] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0043] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0044] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0045] In the description of this application, the term "and / or" is an expression used to describe the logical relationship between objects, indicating that three relationships may exist, for example, A and / or B, which means: A exists, B exists, and A and B exist at the same time. In addition, the character " / " in this article generally indicates that the objects before and after are in an "or" logical relationship.

[0046] In the present application, terms such as “first” and “second” are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0047] Without further limitations, in this application, the words "include", "comprises", "has" or other similar expressions used in the sentences are intended to cover non-exclusive inclusion. These expressions do not exclude the presence of additional elements in the process, method or product including the elements, so that the process, method or product including a series of elements may include not only those limited elements, but also other elements not explicitly listed, or also include elements inherent to such process, method or product.

[0048] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than", "less than", "exceed" and the like are understood to exclude the number itself; expressions such as "above", "below", "within" and the like are understood to include the number itself. In addition, in the description of the embodiments of this application, "multiple" means more than two (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups", "multiple times", etc., unless otherwise clearly and specifically limited.

[0049] In the description of the embodiments of the present application, space-related expressions used, such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "vertical", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or position relationship based on the orientation or position relationship shown in the specific embodiments or drawings, and are only for the convenience of describing the specific embodiments of the present application or facilitating the reader's understanding, and do not indicate or imply that the referred device or component must have a specific position, a specific orientation, or be constructed or operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0050] Unless otherwise expressly specified or limited, in the description of the embodiments of the present application, the terms such as "install", "connect", "connect", "fix", "set", etc. used should be understood in a broad sense. For example, the "connection" can be a fixed connection, a detachable connection, or an integrated setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For technicians in the technical field to which the present application belongs, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] In view of the above-mentioned defects in the prior art, the applicant, based on many years of rich practical experience and professional knowledge in design and manufacturing in this field, and in conjunction with the application of theory, actively conducts research and innovation in the hope of creating a technology that can solve the defects in the prior art. After continuous research and design, and after repeated trial production and improvement, the present utility model with real practical value was finally created.

[0052] Please refer to Figure 1-7 The embodiment of the utility model provides a transparent cylindrical needle tube rubber plug leakage detection system, which is exquisitely designed and highly efficient. Specifically, the system is mainly composed of an image acquisition module 1, two arc-shaped light sources 2 and a rotating component, which work together to achieve stable detection of liquid leakage at the rubber plug 5 of the transparent cylindrical needle tube 4.

[0053] The image acquisition module 1 is located on one side of the transparent cylindrical needle tube 4 and is responsible for capturing images of the rubber plug 5 of the transparent cylindrical needle tube 4. These images are the basis for subsequent analysis and judgment, so the performance and accuracy of the image acquisition module 1 are crucial.

[0054] The two arc-shaped light sources 2 are located between the image acquisition module 1 and the transparent cylindrical needle tube 4, and are arranged up and down. The arc-shaped light-emitting surfaces 3 of the two arc-shaped light sources 2 are inclined toward the rubber plug 5 of the transparent cylindrical needle tube 4. This unique arrangement allows the arc-shaped light source 2 to evenly illuminate the rubber plug 5 of the transparent cylindrical needle tube 4 from both upper and lower directions. In this way, no matter what the shape and size of the needle tube is, a clear and accurate image can be obtained, thereby ensuring the accuracy of the detection. In addition, since the arc-shaped light-emitting surface 3 corresponds to the side wall of the transparent cylindrical needle tube 4, it can ensure that a larger area of ​​the side wall of the transparent cylindrical needle tube 4 in the circumferential direction is illuminated at one time, and multiple transparent cylindrical needle tubes 4 can be illuminated at the same time at one time.

[0055] The rotating assembly is responsible for carrying and driving at least one transparent cylindrical needle tube 4 to rotate. This design eliminates the need to arrange more light sources in different directions, and only two fixed arc-shaped light sources 2 can illuminate the entire circumferential side wall of the transparent cylindrical needle tube 4. In addition, it is convenient for the camera to collect all images of the transparent cylindrical needle tube 4 and the rubber plug 5, thereby improving the detection efficiency.

[0056] This design not only reduces costs, but is also easy to install and requires less installation space. In practical applications, this system can be easily deployed and used in both large-scale production lines and small laboratories, and has broad application prospects and market potential. In the future, this system is expected to become a powerful assistant for quality control in the medical industry, providing strong support for ensuring patient safety and the normal use of medical devices.

[0057] In this embodiment, the arrangement of the arc light source 2 and the arc light emitting surface 3 is explained and illustrated in detail, which helps to better understand the design principle and application of the light source in the transparent cylindrical syringe plug leakage detection system.

[0058] In the transparent cylindrical needle tube rubber plug leakage detection system, the design of the arc light source 2 is one of the keys. The tilted setting mode of the arc light emitting surface 3 directly affects the lighting effect of the light source on the rubber plug 5 of the transparent cylindrical needle tube 4, thereby affecting the clarity and accuracy of image acquisition.

[0059] Specifically, there are two ways to tilt the arc-shaped light-emitting surface 3 relative to the transparent cylindrical needle tube 4:

[0060] The first method is to tilt the arc light source 2 as a whole toward the rubber plug 5 of the transparent cylindrical needle tube 4. In this case, the arc light emitting surface 3 forms a right angle surface, so that a certain angle can be ensured between the arc light emitting surface 3 and the axis of the needle tube. This arrangement can ensure that the light emitted by the light source can fully illuminate multiple corners of the rubber plug 5 of the needle tube, thereby obtaining a more comprehensive and clear image.

[0061] The second method is to only tilt the arc-shaped light-emitting surface 3 toward the rubber plug 5 of the transparent cylindrical needle tube 4, while the arc-shaped light source 2 itself remains perpendicular to the side wall of the transparent cylindrical needle tube 4. Since the transparent cylindrical needle tube 4 is generally placed perpendicular to the horizontal plane, the arc-shaped light source is correspondingly arranged parallel to the horizontal plane. In this case, the arc-shaped light-emitting surface 3 is designed as an inclined surface, which can also ensure that a certain angle is formed between the arc-shaped light-emitting surface 3 and the side wall of the needle tube.

[0062] In practical applications, the appropriate setting method can be selected according to the specific detection requirements and the specifications of the needle tube.

[0063] In addition, no matter which setting method is adopted, it is necessary to ensure that the light-emitting surface of the arc-shaped light source 2 and the rubber plug 5 of the transparent cylindrical needle tube 4 maintain an appropriate distance and angle.

[0064] In this embodiment, the design of the inclination angle θ of the arc-shaped light-emitting surface relative to the transparent cylindrical needle tube 4 is set to 0°<θ<90°. The selection of this design range is based on the following considerations:

[0065] First, the setting of the tilt angle θ needs to ensure that the arc light source can fully and evenly illuminate the rubber plug 5 of the transparent cylindrical needle tube 4. When θ is 90°, that is, the arc light-emitting surface is parallel to the needle tube axis, the light may not be able to effectively illuminate the rubber plug 5, resulting in the failure to illuminate the rubber plug 5 of the transparent cylindrical needle tube 4. When θ is 0°, although the light can illuminate the rubber plug 5, the lighting effect may be unsatisfactory due to the lack of angle, affecting the accuracy of detection.

[0066] Secondly, the selection of the tilt angle θ also needs to take into account the actual installation and use conditions. Too large a tilt angle may increase the difficulty and cost of installation, and is also not conducive to the stability and reliability of the system. The appropriate tilt angle can simplify the installation process and reduce maintenance costs while ensuring the lighting effect.

[0067] In this embodiment, the design of the image acquisition module 1 is a key component to ensure the efficient operation of the transparent cylindrical needle plug leakage detection system. Specifically, the image acquisition module 1 mainly includes a line scan camera 11 and a lens 12.

[0068] The line scan camera 11 has the characteristics of high resolution and fast imaging, and can capture subtle changes in the rubber plug 5 of the transparent cylindrical needle tube 4. By accurately adjusting the parameters of the camera, such as exposure time, white balance, etc., it can ensure that the collected image is clear and accurate, providing reliable data for subsequent analysis and judgment.

[0069] The lens 12 is the core component of the image acquisition module 1, and its selection directly affects the quality and accuracy of the imaging. In this embodiment, a line scanning lens is used. The line scanning lens has the characteristics of high sensitivity, high resolution and fast scanning, and is particularly suitable for fast and accurate image acquisition of the plug 5 of the transparent cylindrical needle tube 4. The line scanning lens can capture the details and slight changes at the plug 5 in the form of high resolution, ensuring the integrity and accuracy of the image information. This characteristic makes the line scanning lens widely used in the field of precision measurement and detection.

[0070] In addition, we also set the focal length of the lens 12 to 50 mm, the object distance to 185 ± 20 mm, and the field of view to 90 mm. Such parameter settings can ensure that the lens 12 captures the complete image of the rubber plug 5 of the needle tube within a suitable distance, while ensuring the clarity and resolution of the image. Through reasonable parameter configuration, accurate detection and measurement of the rubber plug 5 of the transparent cylindrical needle tube 4 can be achieved.

[0071] In this embodiment, in order to ensure the detection accuracy and efficiency of the transparent cylindrical needle plug leakage detection system, the arrangement of the two arc light sources 2 has been precisely designed and calculated. Specifically, the distance between the two arc light sources 2 and the transparent cylindrical needle is set to 50±10mm.

[0072] The selection of this distance is based on comprehensive consideration of the luminous intensity of the light source, the light diffusion angle, and the material and size of the transparent cylindrical needle tube 4. The appropriate distance can ensure that the light emitted by the light source can be evenly irradiated to the rubber plug 5 of the transparent cylindrical needle tube 4, forming a clear shadow or reflection, thereby facilitating subsequent image acquisition and analysis. At the same time, this distance can also avoid the problem of too strong or too weak light caused by too close distance, ensuring the stability and accuracy of image acquisition.

[0073] In addition, the spacing between the two arc-shaped light sources 2 is also precisely controlled to be 80±20 mm. This spacing is set to avoid mutual interference between the light sources and ensure that each light source can independently and evenly illuminate the rubber plug 5 of the transparent cylindrical needle tube 4. The appropriate spacing can also improve the spatial resolution of the system, allowing the system to more accurately detect subtle changes and leakage at the rubber plug 5.

[0074] By precisely controlling the distance between the two arc-shaped light sources (2) and the transparent cylindrical needle tube 4, as well as the spacing between the two light sources, the liquid leakage detection system in this embodiment can achieve efficient and accurate image acquisition and analysis, thereby providing reliable guarantee for product quality.

[0075] In this embodiment, the arc-shaped light source 2 is a high-brightness linear polarized light source.

[0076] It should be noted that there are significant advantages in selecting a high-brightness linear polarized light source as the arc light source 2. The high-brightness linear polarized light source can emit strong and directional light, which is essential for ensuring clear illumination at the rubber plug 5 of the transparent cylindrical needle tube 4. In addition, the characteristics of polarized light can also help reduce reflections and glare, further improving the accuracy and quality of image acquisition.

[0077] The stability and durability of the high-brightness linear polarized light source also make it very suitable for application scenarios such as medical device testing. Under continuous operation and high-intensity use, the high-brightness linear polarized light source can maintain stable luminous performance, ensuring the long-term stable operation of the detection system.

[0078] In this embodiment, the rotating assembly includes a loading platform;

[0079] The loading platform is provided with a loading slot for placing the transparent cylindrical needle tube 4;

[0080] A rotating mechanism is arranged in the object loading tank.

[0081] It should be noted that, as an important component of the detection system, the rotating assembly is responsible for carrying and driving the transparent cylindrical needle tube 4 to rotate, thereby achieving comprehensive detection of the rubber stoppers 5 of multiple needle tubes.

[0082] Specifically, the loading platform is a stable support structure, on which a plurality of loading slots are provided for placing the transparent cylindrical needle tube 4. The shape and size of these loading slots match the needle tube, ensuring that the needle tube can be stably placed on the platform. At the same time, the design of the loading platform also takes into account the convenience and safety of operation, so that the user can easily place the needle tube into the loading slot and start the detection process.

[0083] The rotating mechanism is installed in the loading tank and is used to drive the transparent cylindrical needle tube 4 to rotate. The rotating mechanism can be composed of a motor, a reducer and other components, and the needle tube can be smoothly rotated by accurately controlling the speed and rotation direction of the motor. During the rotation process, the rubber plug 5 on the circumference of the needle tube will pass through the irradiation area of ​​the arc light source in turn, thereby ensuring that each rubber plug 5 can be fully illuminated and imaged.

[0084] Although the terms such as image acquisition module, arc light source, arc light emitting surface, rotating assembly, etc. are used more frequently in this application, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

[0085] The utility model provides a transparent cylindrical needle tube rubber plug leakage detection system, comprising an image acquisition module, two arc light sources and a rotating component. The rotating component carries and drives at least one transparent cylindrical needle tube to rotate, and two arc light sources arranged in an up-and-down tilt illuminate the rubber plug of the transparent cylindrical needle tube, so that the image acquisition module can simultaneously acquire images of the rubber plugs of several transparent cylindrical needle tubes for leakage detection. The utility model not only has low cost, but also is easy to install and requires a small installation space, and has broad application prospects and market potential.

[0086] Finally, it should be noted that although the above embodiments have been described in the specification and drawings of this application, this does not limit the scope of patent protection of this application. All technical solutions generated by replacing or modifying equivalent structures or equivalent processes based on the essential concept of this application using the contents recorded in the specification and drawings of this application, as well as directly or indirectly implementing the technical solutions of the above embodiments in other related technical fields, are included in the scope of patent protection of this application.

Claims

1. A transparent cylindrical needle tube rubber plug leakage detection system, characterized in that: It comprises an image acquisition module (1), two arc-shaped light sources (2) and a rotating component: wherein: The rotating assembly is used to carry and drive at least one transparent cylindrical needle tube to rotate; The image acquisition module (1) is located on one side of the transparent cylindrical needle tube and is used to acquire an image of the rubber plug of the transparent cylindrical needle tube; The two arc-shaped light sources (2) are located between the image acquisition module (1) and the transparent cylindrical needle tube, and are arranged vertically, and the arc-shaped light-emitting surfaces (3) of the two arc-shaped light sources (2) are both arranged to be inclined toward the rubber plug of the transparent cylindrical needle tube; The two arc-shaped light sources (2) are used to illuminate the rubber plug of the transparent cylindrical needle tube from two directions, upper and lower.

2. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The arc-shaped light-emitting surface (3) is a right-angled surface; The arc-shaped light source (2) is arranged obliquely toward the rubber plug of the transparent cylindrical needle tube.

3. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The arc-shaped light-emitting surface (3) is an inclined surface; The arc-shaped light source (2) is arranged perpendicular to the side wall of the transparent cylindrical needle tube.

4. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The inclination angle θ of the arc-shaped light-emitting surface (3) relative to the transparent cylindrical needle tube is: 0°<θ<90°.

5. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The image acquisition module (1) comprises a line scan camera (11) and a lens (12).

6. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 5, characterized in that: The lens (12) is a line scanning lens with a focal length of 50 mm, an object distance of 185±20 mm, and a field of view of 90 mm.

7. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The distance between the two arc-shaped light sources (2) and the transparent cylindrical needle tube is 50±10 mm.

8. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The spacing distance between the two arc-shaped light sources (2) is 80±20 mm.

9. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The arc-shaped light source (2) is a high-brightness linear polarized light source.

10. The transparent cylindrical needle tube rubber plug leakage detection system according to claim 1, characterized in that: The rotating assembly includes a loading platform; The loading platform is provided with a loading slot for placing the transparent cylindrical needle tube; A rotating mechanism is arranged in the object loading tank.

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