Machine vision detection device for medical thermosensitive film

Abstract

The utility model discloses a machine vision detection device for a medical thermosensitive film. The machine vision detection device comprises a working table, two adsorption turnover mechanisms and a support frame, wherein the two adsorption turnover mechanisms are mounted at the top of the working table in a mirror image manner; the support frame is fixed at the top of the working table; the bottom of the supporting frame is provided with a CCD visual camera used for capturing image data of a to-be-detected thermosensitive film. The bottom of the supporting frame is provided with a translation assembly used for driving the CCD visual camera to translate between the two adsorption turnover mechanisms. The two adsorption turnover mechanisms are installed on the top of the workbench in a mirror image mode, under the cooperation of the CCD visual camera, the turnover air cylinder, the telescopic air cylinder and the negative pressure suction cup, automatic turnover and double-face detection of the thermosensitive film can be achieved, image information of the two faces of the thermosensitive film can be efficiently and accurately collected, the thermosensitive film can be stably clamped in a lossless mode, and the detection efficiency is improved. The influence on the surface quality of the thin and easy-to-bend thermosensitive film is avoided, so that the efficiency and the reliability of the quality detection of the thermosensitive film are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of medical film technology, and in particular to a machine vision inspection device for medical thermal film. Background Technology

[0002] In the field of medical imaging diagnosis, thermal film serves as a crucial medium for recording medical images, and its quality directly impacts doctors' accurate diagnosis and subsequent treatment planning. Thermal film not only requires high resolution and excellent image fidelity, but also must be free of surface defects and have a uniform coating during production and use to avoid misdiagnosis or missed diagnosis due to film quality issues.

[0003] Traditionally, the quality inspection of thermal films has relied primarily on manual visual inspection, requiring professionals to visually examine the film surface to identify potential defects such as scratches, stains, or other physical flaws. This traditional method is not only inefficient but also limited by subjective judgment and experience, making it difficult to guarantee consistency and accuracy. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a machine vision inspection device for medical thermal films.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a machine vision inspection device for medical thermal film, comprising: a worktable, two adsorption and flipping mechanisms mirror-mounted on the top of the worktable, and a support frame fixed on the top of the worktable;

[0006] The bottom of the support frame is provided with a CCD vision camera for capturing image data of the thermal film to be tested, and the bottom of the support frame is provided with a translation component for driving the CCD vision camera to move between the two adsorption and flipping mechanisms.

[0007] The adsorption and flipping mechanism includes: a mounting plate installed on the top of the workbench, a flipping cylinder fixed on one side of the mounting plate, and a telescopic cylinder installed at the output end of the flipping cylinder; the output end of the telescopic cylinder is fixed with a mounting frame, and a plurality of negative pressure suction cups are installed on the mounting frame.

[0008] In a preferred embodiment of this utility model, the bottom of the CCD vision camera faces the top of the mounting bracket, and a plurality of negative pressure suction cups are respectively located around the mounting bracket.

[0009] In a preferred embodiment of this utility model, a detection controller is provided on the top of the worktable for detecting thermal film using image processing algorithms and sending and receiving control commands; the detection controller is electrically connected to the CCD vision camera, the flip cylinder and the telescopic cylinder respectively.

[0010] In a preferred embodiment of this utility model, a robotic arm for loading and unloading thermal film is provided on one side of each of the two adsorption and flipping mechanisms; the robotic arm is electrically connected to the detection controller, and the bottom of the robotic arm is fixed to the top of the worktable.

[0011] In a preferred embodiment of the present invention, a plurality of feeding plates are fixed on the top of the workbench, the feeding plates are located on one side of the robotic arm, and a plurality of L-shaped surround strips are fixed on the top of the feeding plates, with a feeding area enclosed between the plurality of L-shaped surround strips.

[0012] In a preferred embodiment of the present invention, the robotic arm located on one side of the adsorption and flipping mechanism is provided with at least one feeding plate for feeding the thermal film to be tested; the robotic arm located on the other side of the adsorption and flipping mechanism is provided with at least two feeding plates for sorting and feeding the thermal film after testing.

[0013] In a preferred embodiment of this utility model, the translation component includes: an n-shaped plate fixed to the bottom of the support frame, a lead screw and several limiting rods disposed inside the n-shaped plate, and a moving block disposed on the side of the lead screw and several limiting rods; the bottom of the moving block is fixed to the top of the CCD vision camera, a servo motor is installed on one side of the n-shaped plate, the output end of the servo motor is fixed to one end of the lead screw, and the servo motor is electrically connected to the detection controller.

[0014] In a preferred embodiment of this utility model, the sides of the lead screw near both ends are rotatably connected to the inner side of the n-shaped plate, and the two ends of the limiting rod are fixed to the inner side of the n-shaped plate; the inner side of the moving block is threadedly connected to the side of the lead screw and sleeved with the sides of the plurality of limiting rods.

[0015] In a preferred embodiment of the present invention, the bottom of the workbench is fixed with support legs for providing support.

[0016] In a preferred embodiment of this utility model, the bottom of the support leg is fixed with an anti-slip pad for preventing slippage and improving stability during support.

[0017] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0018] (1) This utility model provides a machine vision inspection device for medical thermal films. By mirroring two adsorption and flipping mechanisms on the top of the worktable, and with the cooperation of a CCD vision camera, a flipping cylinder, a telescopic cylinder and a negative pressure suction cup, the thermal film can be automatically flipped and double-sided inspected. It can not only efficiently and accurately collect image information from both sides of the thermal film, but also clamp the thermal film securely and without damage, avoiding affecting the surface quality of the thin and easily bent thermal film, thereby greatly improving the efficiency and reliability of thermal film quality inspection.

[0019] (2) In this utility model, by setting a detection controller and a robotic arm on the top of the workbench, only manual labor is required to place the thermal film to be tested on the feeding plate. No manual intervention is required, thus realizing the automated operation of feeding, testing, flipping and unloading of thermal film, ensuring the continuity and efficiency of the detection process, and greatly improving the overall detection efficiency and automation level.

[0020] (3) In this utility model, by setting a translation component at the bottom of the support frame, with the cooperation of the servo motor, lead screw, limit rod, servo motor and moving block, the CCD vision camera can be smoothly and accurately translated between the two adsorption flipping mechanisms, thereby capturing image data of thermal film at different positions and improving the flexibility of detection. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0022] Figure 1 This is a three-dimensional structural diagram of a preferred embodiment of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram of the adsorption and flipping mechanism of a preferred embodiment of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the translation component according to a preferred embodiment of the present invention;

[0025] In the diagram: 1. Workbench; 2. Adsorption and flipping mechanism; 21. Mounting plate; 22. Flipping cylinder; 23. Telescopic cylinder; 24. Mounting frame; 25. Negative pressure suction cup; 3. Support frame; 4. CCD vision camera; 5. Translation component; 51. N-shaped plate; 52. Lead screw; 53. Limiting rod; 54. Moving block; 55. Servo motor; 6. Detection controller; 7. Robotic arm; 8. Feeding plate; 81. L-shaped guardrail; 9. Support leg; 91. Anti-slip mat. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0027] like Figure 1 and Figure 2 As shown, a machine vision inspection device for medical thermal film includes: a worktable 1, two adsorption and flipping mechanisms 2 mirror-mounted on the top of the worktable 1, and a support frame 3 fixed on the top of the worktable 1; a CCD vision camera 4 for capturing image data of the thermal film to be tested is provided at the bottom of the support frame 3, and a translation component 5 for driving the CCD vision camera 4 to move between the two adsorption and flipping mechanisms 2 is provided at the bottom of the support frame 3; the adsorption and flipping mechanism 2 includes: a mounting plate 21 mounted on the top of the worktable 1, a flipping cylinder 22 fixed on one side of the mounting plate 21, and a telescopic cylinder 23 mounted on the output end of the flipping cylinder 22; a mounting frame 24 is fixed to the output end of the telescopic cylinder 23, and a plurality of negative pressure suction cups 25 are mounted on the mounting frame 24.

[0028] It should be noted that the bottom of the CCD vision camera 4 faces the top of the mounting bracket 24, and several negative pressure suction cups 25 are located around the mounting bracket 24. Preferably, there are four negative pressure suction cups 25, one end of which is connected to an external negative pressure generating device via a pipe. This device generates negative pressure on the contact surface between the suction end of the suction cup 25 and the thermal film to achieve stable adsorption. The CCD vision camera 4 is a high-performance image acquisition device used in industrial applications. Based on CCD sensing technology, it features high sensitivity, low noise, and good image quality. It is a general standard component or a component known to those skilled in the art. Its structure and principle are readily available from technical manuals and will not be described in detail here. After the thermal film to be tested is placed on the four negative pressure suction cups 25 in one of the adsorption and flipping mechanisms 2, negative pressure is generated between the suction end of the suction cup 25 and the thermal film through the external negative pressure generating device, completing the adsorption and fixation. The CCD vision camera 4 then captures an image of the thermal film to obtain the thermal... The system collects detailed image information of the thermal film and transmits it to the inspection equipment. It identifies the size, shape, and defects of the thermal film, enabling inspection of one side. After one side is inspected, the flipping cylinders 22 in the two adsorption flipping mechanisms 2 drive the negative pressure suction cups 25 to rotate 90° relative to each other. The telescopic cylinder 23 pushes the thermal film towards the negative pressure suction cup 25 in the other adsorption flipping mechanism 2, fixing it in place. After the flipping cylinder 22 resets and rotates 90°, the CCD vision camera 4, with the cooperation of the translation component 5, is moved to above the current position of the thermal film, allowing inspection of the other side. This achieves automatic flipping and double-sided inspection of the thermal film. It not only efficiently and accurately acquires image information from both sides of the thermal film but also securely clamps the thermal film without damage, avoiding impact on the surface quality of thin and easily bent thermal films, thus greatly improving the efficiency and reliability of thermal film quality inspection.

[0029] In some embodiments, the top of the worktable 1 is provided with a detection controller 6 for detecting thermal film using image processing algorithms and sending and receiving control commands; the detection controller 6 is electrically connected to the CCD vision camera 4, the flip cylinder 22 and the telescopic cylinder 23 respectively.

[0030] It should be noted that the control circuit of the detection controller 6 can be implemented by simple programming by those skilled in the art, and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here. Through the setting of the detection controller 6, image data can be acquired in real time, and advanced image processing algorithms can be used to analyze the image data to identify key features such as the size, shape, and defects of the thermal film, thereby realizing the detection of the thermal film. Based on the detection results, the actions of each component are controlled, and the automated control improves the detection efficiency and accuracy.

[0031] In some embodiments, a robotic arm 7 for loading and unloading thermal films is provided on one side of each of the two adsorption and flipping mechanisms 2; the robotic arm 7 is electrically connected to the detection controller 6, and the bottom of the robotic arm 7 is fixed to the top of the worktable 1; by providing a robotic arm 7 on one side of the two adsorption and flipping mechanisms 2 for loading and unloading thermal films, the robotic arm 7 can receive control commands from the detection controller 6 and automatically complete the loading detection or unloading action of the thermal films after detection, reducing manual intervention and improving the automation level of the detection process.

[0032] In some embodiments, a plurality of feeding plates 8 are fixed on the top of the workbench 1. The feeding plates 8 are located on one side of the robotic arm 7. A plurality of L-shaped surround strips 81 are fixed on the top of the feeding plates 8, and a feeding area is enclosed between the plurality of L-shaped surround strips 81.

[0033] It should be noted that the robotic arm 7 located on one side of the adsorption and flipping mechanism 2 is provided with at least one feeding plate 8 for feeding the thermal film to be tested; the robotic arm 7 located on the other side of the adsorption and flipping mechanism 2 is provided with at least two feeding plates 8 for sorting and feeding the thermal film after testing; the feeding area formed on the top of the feeding plate 8 by several L-shaped strips 81 can ensure that the thermal film will not slip or be misaligned when placed. At the same time, different numbers of feeding plates 8 are set on one side of the robotic arm 7 at different positions, which can be used for feeding the thermal film to be tested and sorting and feeding the thermal film after testing, respectively.

[0034] like Figure 3 As shown, in some embodiments, the translation component 5 includes: an n-shaped plate 51 fixed to the bottom of the support frame 3, a lead screw 52 and several limiting rods 53 disposed inside the n-shaped plate 51, and a moving block 54 disposed on the side of the lead screw 52 and several limiting rods 53; the bottom of the moving block 54 is fixed to the top of the CCD vision camera 4, a servo motor 55 is mounted on one side of the n-shaped plate 51, the output end of the servo motor 55 is fixed to one end of the lead screw 52, ​​and the servo motor 55 is electrically connected to the detection controller 6.

[0035] It should be noted that the sides of the lead screw 52 near both ends are rotatably connected to the inner side of the n-shaped plate 51, and the two ends of the limiting rod 53 are fixed to the inner side of the n-shaped plate 51; the inner side of the moving block 54 is threadedly connected to the side of the lead screw 52 and sleeved with the sides of several limiting rods 53; the lead screw 52 is driven to rotate by the servo motor 55. Since the inner side of the moving block 54 is threadedly connected to the side of the lead screw 52, ​​the moving block 54 will move along the direction of the lead screw 52. At the same time, the limiting rods 53 ensure that the moving block 54 will not deviate or shake during the movement, so that the CCD vision camera 4 can be smoothly and accurately translated between the two adsorption and flipping mechanisms 2, thereby capturing image data of the thermal film at different positions and improving the flexibility of detection.

[0036] like Figure 1 As shown, in some embodiments, the bottom of the workbench 1 is fixed with a support leg 9 for supporting the workbench; the support leg 9 can improve the support function of the workbench 1.

[0037] In some embodiments, the bottom of the support leg 9 is fixed with an anti-slip pad 91 for improving stability during support; by fixing the anti-slip pad 91 to the bottom of the support leg 9, the friction between the device and the ground can be increased, preventing the device from sliding or tipping over due to vibration or external force during the testing process.

[0038] In use, multiple thermal films to be tested are placed in the feeding area on the feeding plate 8. Several L-shaped retaining strips 81 ensure stability during placement. A robotic arm 7 places the thermal films onto the negative pressure suction cup 25 of one of the adsorption and flipping mechanisms 2. An external negative pressure generating device creates a negative pressure between the suction cup 25 and the thermal film, achieving stable adsorption. Subsequently, a CCD vision camera 4 captures image data of the thermal film and transmits it to the detection controller 6 for image processing and analysis, identifying the size, shape, and potential defects of the thermal film. After one side is inspected, the two adsorption and flipping mechanisms 2 are activated by a flipping cylinder 2. The device 2 rotates 90° relative to the other side, and the telescopic cylinder 23 pushes the thermal film to the negative pressure suction cup 25 of another adsorption and flipping mechanism 2. It then flips and resets. At this time, the servo motor 55 in the translation component 5 drives the lead screw 52 to rotate, causing the moving block 54 threadedly connected to the lead screw 52 and the CCD vision camera 4 fixed thereon to smoothly translate to a new position above, inspecting the other side of the thermal film. Simultaneously, the inspection controller 6 controls the robotic arm 7 on the other side to automatically complete the unloading and sorting of the thermal film based on the inspection results. The inspected thermal film is then placed on the corresponding placement plate 8 near the robotic arm 7 on the other side according to the sorting results. The entire inspection process is efficient and accurate, and does not damage the surface quality of the thermal film, significantly improving the efficiency and reliability of thermal film quality inspection.

[0039] Based on the above description and the preferred embodiments of this utility model, it will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A machine vision inspection apparatus for medical heat-sensitive film, characterized by, include: The workbench (1), two adsorption and flipping mechanisms (2) mirror-mounted on the top of the workbench (1), and a support frame (3) fixed on the top of the workbench (1); The bottom of the support frame (3) is provided with a CCD vision camera (4) for capturing image data of the thermal film to be tested, and the bottom of the support frame (3) is provided with a translation component (5) for driving the CCD vision camera (4) to move between the two adsorption flipping mechanisms (2). The adsorption and flipping mechanism (2) includes: a mounting plate (21) installed on the top of the workbench (1), a flipping cylinder (22) fixed on one side of the mounting plate (21), and a telescopic cylinder (23) installed at the output end of the flipping cylinder (22); the output end of the telescopic cylinder (23) is fixed with a mounting frame (24), and a plurality of negative pressure suction cups (25) are installed on the mounting frame (24).

2. The machine vision inspection apparatus for medical heat-sensitive films according to claim 1, wherein: The bottom of the CCD vision camera (4) faces the top of the mounting bracket (24), and several negative pressure suction cups (25) are located around the mounting bracket (24).

3. The machine vision inspection device for medical thermal film according to claim 1, characterized in that: The top of the workbench (1) is provided with a detection controller (6) for detecting thermal film using image processing algorithms and sending and receiving control commands; the detection controller (6) is electrically connected to the CCD vision camera (4), the flip cylinder (22) and the telescopic cylinder (23) respectively.

4. The machine vision inspection apparatus for medical heat-sensitive films according to claim 3, wherein: Each of the two adsorption and flipping mechanisms (2) is provided with a robotic arm (7) for loading and unloading thermal films on one side; the robotic arm (7) is electrically connected to the detection controller (6), and the bottom of the robotic arm (7) is fixed to the top of the worktable (1).

5. A machine vision inspection apparatus for medical heat-sensitive films as claimed in claim 4, wherein: The top of the workbench (1) is fixed with several feeding plates (8), the feeding plates (8) are located on one side of the robotic arm (7), the top of the feeding plates (8) is fixed with several L-shaped surround strips (81), and the feeding area is enclosed between the several L-shaped surround strips (81).

6. A machine vision inspection apparatus for medical heat-sensitive films as claimed in claim 5, wherein: The robotic arm (7) located on one side of the adsorption flipping mechanism (2) is provided with at least one of the feeding plates (8) for feeding the thermal film to be tested; the robotic arm (7) located on the other side of the adsorption flipping mechanism (2) is provided with at least two of the feeding plates (8) for sorting and feeding the thermal film after testing.

7. The machine vision inspection apparatus for medical heat-sensitive films according to claim 3, wherein: The translation component (5) includes: an n-shaped plate (51) fixed to the bottom of the support frame (3), a lead screw (52) and several limiting rods (53) disposed inside the n-shaped plate (51), and a moving block (54) disposed on the side of the lead screw (52) and several limiting rods (53); the bottom of the moving block (54) is fixed to the top of the CCD vision camera (4), a servo motor (55) is installed on one side of the n-shaped plate (51), the output end of the servo motor (55) is fixed to one end of the lead screw (52), and the servo motor (55) is electrically connected to the detection controller (6).

8. A machine vision inspection apparatus for medical heat-sensitive films as claimed in claim 7, wherein: The sides of the lead screw (52) near both ends are rotatably connected to the inner side of the n-shaped plate (51), and the two ends of the limiting rod (53) are fixed to the inner side of the n-shaped plate (51); the inner side of the moving block (54) is threadedly connected to the side of the lead screw (52) and sleeved with the sides of several limiting rods (53).

9. The machine vision inspection apparatus for medical heat-sensitive films according to claim 1, wherein: The bottom of the workbench (1) is fixed with support legs (9) for supporting the work.

10. A machine vision inspection apparatus for medical heat-sensitive film according to claim 9, wherein: The bottom of the support leg (9) is fixed with an anti-slip pad (91) for preventing slipping and improving stability when supporting.

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