A coated barrier film detection device

Abstract

The application discloses a kind of coated barrier film detection devices, the present application relates to coated barrier film detection technical field, including base, the one end of the base is fixedly connected with first fixed frame, the advantage of the present application is that: the LED lamp inclination angle after rotation meets the LED lamp inclination angle requirement when light source focusing position is unchanged, so that the process of spacing adjustment between industrial camera and LED lamp, the focusing position of light source is always unchanged, guarantee measurement result reliable, without real-time measurement LED lamp inclination angle according to focusing position, save time and effort, at the same time, avoid measurement failure, improve detection efficiency and detection quality, and the distance between industrial camera and diaphragm surface is constant, to avoid the picture defocus of industrial camera shooting, ensure the quality of picture, improve detection precision, without manual measurement diaphragm height, also no need manual adjustment detection device, simplify the adjustment process, applicable to high-speed production, so that device can detect a variety of diaphragm products.

Description

Technical Field

[0001] This invention relates to the field of coated release film testing technology, specifically to a coated release film testing device. Background Technology

[0002] Optical inspection is a crucial part of the quality control of coated diaphragms. With its non-contact, high-speed, and high-precision characteristics, it is widely used in various stages from microscopic analysis to high-speed production line inspection. Among them, machine vision and automated optical inspection are the most widely used technologies on the production line. It analyzes defects by using camera imaging and combining image processing algorithms. This process integrates hardware imaging, software analysis, and intelligent decision-making, with the aim of controlling product quality in real time during high-speed production.

[0003] During the high-speed production process described above, when the production line needs to switch between different thicknesses or types of diaphragm products, the height of the diaphragm on the product surface will change. However, if the camera position is fixed, it may cause the image to be out of focus. This is unacceptable in scenarios that require high-precision imaging. For example, in optical appearance inspection, it is necessary to ensure that the distance between the camera and the film surface is constant in order to capture high-quality images with accurate focus. Therefore, the height of the camera needs to be adjusted according to the diaphragm product to avoid affecting the detection accuracy. If the data is measured manually and the detection device is adjusted manually, the adjustment process is lengthy and not suitable for high-speed production.

[0004] In addition to the issues mentioned above, when the production line switches to diaphragms of different thicknesses or materials, the reflection and transmission characteristics of light will also change. At this time, it is necessary to readjust the relative positions of the light source and the camera to achieve the best illumination and lighting effect. Adjusting the distance between the light source and the camera can change the angle between the illumination optical axis and the camera optical axis. Using light at a specific angle can make the defective area and the normal area produce a more obvious brightness difference in imaging, thereby improving the recognition accuracy. It should be further noted that when adjusting the distance between the LED light source and the camera, the focusing position of the light source must remain unchanged to ensure the reliability of the measurement results. For example, the measurement of laser photothermal method requires this requirement. However, the distance between the LED light source and the camera has no fixed value and needs to be flexibly adjusted according to the actual production needs. Therefore, the angle adjustment value of the incident light is variable and needs to be measured in real time according to the focusing position. This is not only time-consuming and laborious, but also prone to measurement errors, causing changes in the focusing position, affecting the detection efficiency and detection quality. It is impossible to automatically complete the adjustment of the LED light source angle and ensure the accuracy of the LED light source angle during the adjustment of the distance between the LED light source and the camera.

[0005] A search revealed that Chinese patent application CN119757380A discloses an AOI inspection assembly and a visual inspection device after the isolation film dot coating process. Although it can perform visual inspection, it cannot solve the above-mentioned problems. Summary of the Invention

[0006] The purpose of this invention is to provide a coating isolation film detection device to solve the problems mentioned in the background art.

[0007] The present invention provides the following technical solution: a coating isolation film detection device, comprising a base, a first fixing frame fixedly connected to one end of the base, a second fixing frame fixedly connected to the other end of the base, a conveyor belt installed between the second fixing frame and the first fixing frame, a guide rod fixedly connected to the top surface of the base, a bracket and a first crossbar sleeved on the guide rod, a first lead screw rotatably connected to the top surface of the first fixing frame, a second crossbar slidably connected to the bottom surface of the first crossbar, an industrial camera clamped on the second crossbar, and mounting blocks sleeved at both ends of the second crossbar, a groove formed at the bottom end of the mounting block, and a rotating shaft sleeved at the bottom end of the mounting block, with an LED light fixedly connected to the end of the rotating shaft.

[0008] As a further embodiment of the present invention: two brackets are provided, the two brackets are symmetrically arranged about the first crossbar, the top of the bracket is fixedly connected to the first crossbar, the guide rod is arranged in a U-shape, the LED light is sleeved on the bottom of the mounting block, and the first lead screw is threadedly connected to the first crossbar.

[0009] As a further embodiment of the present invention: two slide rods are slidably connected to the side walls of the second fixed frame and the first fixed frame, and a guide plate is fixedly connected between the two slide rods. A pressure roller is hinged inside the guide plate. A rack is fixedly connected to the side wall of the slide rod, and a driven gear is meshed with the side wall of the rack. A main bevel gear is fixedly connected to the central axis of the driven gear, and a secondary bevel gear is meshed with the outer surface of the main bevel gear. A transmission sprocket is fixedly connected to the central axis of the secondary bevel gear, and one end of a chain is meshed with the outer surface of the transmission sprocket. The other end of the chain is meshed with the driven sprocket.

[0010] As a further embodiment of the present invention: the pressure roller is in contact with the top surface of the conveyor belt, the side wall of the guide plate is an inclined arc surface, the extension line of the inclined arc surface is tangent to the pressure roller, and a tension spring is provided between the guide plate and the conveyor belt.

[0011] As a further embodiment of the present invention: the top end of the first fixed frame is provided with an inner cavity, the driven gear, the main bevel gear, the secondary bevel gear and the transmission sprocket are all rotatably connected to the side wall of the inner cavity, the chain is sleeved on the first fixed frame, the driven sprocket is fixedly connected to the first lead screw, the transmission ratio of the main bevel gear and the secondary bevel gear is 1, the size of the transmission sprocket and the driven sprocket is equal, and the pitch of the first lead screw is equal to the circumference of the driven gear.

[0012] As a further embodiment of the present invention: the bottom surface of the mounting block is fixedly connected to a meshing block and a connecting block, the bottom surface of the second crossbar is fixedly connected to a fixing block, the bottom end of the fixing block is rotatably connected to a bidirectional screw, the external thread of the bidirectional screw is provided with a sliding groove, both ends of the bidirectional screw are threadedly connected to the meshing block, and the bidirectional screw is sleeved with the connecting block, a vertical rod is fixedly connected to the side wall of the groove, the top end of the vertical rod is rotatably connected to a second lead screw, the outer surface of the second lead screw is threadedly connected to a translation block, the bottom end of the translation block is hinged to one end of a lever, the other end of the lever is fixedly connected to a rotating shaft, the end of the second lead screw is fixedly connected to a driven roller, the outer surface of the driven roller is sleeved with one end of a track, the other end of the track is sleeved with a driving roller, and the inner surface of the driving roller is fixedly connected to a slider.

[0013] As a further embodiment of the present invention: the active roller is sleeved with the connecting block, the active roller is sleeved with the bidirectional screw, the slider is slidably connected with the slide groove, the track is sleeved with the connecting block and the mounting block, the second lead screw is rotatably connected with the mounting block, the vertical rod is parallel to the industrial camera, the central axis of the lever coincides with the central axis of the LED light, and the central axis of the lever intersects with the central axis of the rotating shaft.

[0014] As a further embodiment of the present invention: the bottom end of the vertical rod is sleeved with the rotating shaft, the lever is telescopic, and the height from the central axis of the second lead screw to the central axis of the rotating shaft is 1 / 10 of the height from the industrial camera to the top surface of the conveyor belt. Therefore, the pitch of the second lead screw is 1 / 10 of the pitch of the bidirectional screw.

[0015] Compared with the prior art, the beneficial effects of the present invention, using the above technical solution, are as follows: In this invention, the vertical rod is always parallel to the industrial camera, and the central axis of the lever coincides with the central axis of the LED light, meaning the lever coincides with the incident light. The central axis of the lever intersects the central axis of the rotating shaft. Therefore, the right triangle formed by the lever, the second lead screw, and the vertical rod is completely similar to the right triangle formed by the incident light, the camera optical axis, and the bidirectional screw. To maintain the focused position of the light source, the tangent of the LED light's tilt angle after translation should be... H is the height from the industrial camera to the top surface of the conveyor belt, and L is the horizontal distance from the LED light at the initial position to the industrial camera. The distance the LED light moves is [specified]. The height from the centerline of the second lead screw to the centerline of the rotating shaft is 1 / 10 of the height from the industrial camera to the top surface of the conveyor belt. Simultaneously, the pitch of the second lead screw is 1 / 10 of the pitch of a double-headed screw. Therefore, after the LED light stops moving, the translation block moves [a certain distance]. / 10, at this point, the tangent of the lever's tilt angle is equal to the tangent of the LED light's tilt angle after the translation stops, equal to Let l be the initial distance between the translation block and the vertical rod. Since the right triangle formed by the lever, the second lead screw, and the vertical rod is exactly similar to the right triangle formed by the incident light, the camera optical axis, and the bidirectional screw, the initial distance between the translation block and the vertical rod is l = L / 10. Combining the two tangent values, the tilt angle of the rotated LED lamp meets the LED lamp tilt angle requirement when the light source's focusing position remains unchanged. This ensures that the focusing position of the light source remains unchanged during the adjustment of the distance between the industrial camera and the LED lamp, guaranteeing reliable measurement results. There is no need to measure the LED lamp tilt angle in real time based on the focusing position, saving time and effort while avoiding measurement errors and improving detection efficiency and quality.

[0016] This invention uses a rack to drive a driven gear in the inner cavity, causing the main bevel gear on the driven gear to rotate, which in turn drives the secondary bevel gear to rotate. This causes the transmission sprocket on the secondary bevel gear to rotate, which in turn drives the driven sprocket via a chain. This, in turn, causes the first lead screw on the driven sprocket to rotate. The first lead screw is threadedly connected to a first crossbar, and the first crossbar is restricted from rotating by a guide rod. This causes the first crossbar to rise under the drive of the first lead screw. The transmission ratio between the main bevel gear and the secondary bevel gear is 1, and the transmission sprocket and the driven sprocket are of equal size. This ensures that for every one rotation of the driven gear, the first lead screw on the driven sprocket also rotates one revolution. When the rack rises to the same height as the driven gear... When the circumference of the gear is measured, the driven gear rotates once, the first lead screw rotates once, and the first crossbar on the first lead screw rises by one pitch of the first lead screw. The pitch of the first lead screw is equal to the circumference of the driven gear. Therefore, the height of the slide bar and rack rising is equal to the height of the first crossbar rising, which indirectly keeps the height of the industrial camera and the lowest point of the pressure roller constant. This ensures that the distance between the industrial camera and the diaphragm surface is constant, thus avoiding out-of-focus images captured by the industrial camera, ensuring image quality, improving detection accuracy, eliminating the need for manual measurement of the diaphragm height, and eliminating the need for manual adjustment of the detection device. This simplifies the adjustment process, makes it suitable for high-speed production, and allows the device to detect a variety of diaphragm products.

[0017] This invention uses a conveyor belt to move the diaphragm product horizontally through a guide plate. During this process, the diaphragm product presses against the inclined arc surface of the guide plate, causing the guide plate to be pushed upwards. The guide plate is restricted by the sliding rod and cannot move horizontally, thus causing the guide plate to drive the pressure roller and the sliding rod to move upwards, further extending the tension spring until the pressure roller is located on the top surface of the diaphragm product. At this point, the height of the lowest point of the pressure roller is the diaphragm height on the surface of the diaphragm product. The diaphragm height on the surface of the diaphragm product can be automatically positioned, providing a basis for adjustment without the need for manual measurement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a coating isolation film detection device according to the present invention; Figure 2 This is a schematic diagram of the first crossbar structure of the present invention; Figure 3 for Figure 1 Enlarged view of the structure of section A in the middle; Figure 4 This is a schematic diagram of the guide plate structure of the present invention; Figure 5 for Figure 4 Enlarged view of the structure of section B; Figure 6 This is a schematic diagram of the support structure of the present invention; Figure 7 This is a half-sectional schematic diagram of the mounting block structure of the present invention; Figure 8 for Figure 7 Enlarged view of the structure of section C; Figure 9 for Figure 7 Enlarged view of the structure of section D in the middle; Figure 10 This is a schematic diagram of the second fixing frame structure of the present invention.

[0019] In the diagram: 1. Base; 2. First fixed frame; 3. Second fixed frame; 4. Conveyor belt; 5. Guide rod; 6. Bracket; 7. First crossbar; 8. First lead screw; 9. Second crossbar; 10. Industrial camera; 11. Mounting block; 12. Rotating shaft; 13. LED light; 14. Slide rod; 15. Guide plate; 16. Pressure roller; 17. Rack; 18. Driven gear; 19. Main bevel gear; 20. Secondary bevel gear; 21. Transmission sprocket; 22. Chain; 23. Driven sprocket; 24. Groove; 25. Fixed block; 26. Bidirectional screw; 27. Slide groove; 28. Meshing block; 29. ​​Connecting block; 30. Vertical rod; 31. Second lead screw; 32. Translation block; 33. Lever; 34. Driven roller; 35. Track; 36. Driven roller; 37. Slider. Detailed Implementation

[0020] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the present invention, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] Example 1, please refer to Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 10The present invention provides a technical solution: a coating isolation film detection device, including a base 1, a first fixing frame 2 fixed to one end of the base 1, a second fixing frame 3 fixed to the other end of the base 1, a conveyor belt 4 installed between the second fixing frame 3 and the first fixing frame 2, a guide rod 5 fixed to the top surface of the base 1, a bracket 6 and a first crossbar 7 sleeved on the guide rod 5, a first lead screw 8 rotatably connected to the top surface of the first fixing frame 2, a second crossbar 9 slidably connected to the bottom surface of the first crossbar 7, an industrial camera 10 clamped on the second crossbar 9, and mounting blocks 11 sleeved at both ends of the second crossbar 9, a groove 24 opened at the bottom end of the mounting block 11, and a rotating shaft 12 sleeved at the bottom end of the mounting block 11, with an LED light 13 fixedly connected to the end of the rotating shaft 12.

[0022] Please see Figure 7 and Figure 10 There are two brackets 6, which are symmetrically arranged about the first crossbar 7. The top of the bracket 6 is fixed to the first crossbar 7. The guide rod 5 is arranged in a U-shape. The LED light 13 is sleeved on the bottom of the mounting block 11. The first lead screw 8 is threadedly connected to the first crossbar 7.

[0023] Specifically, during the testing of the diaphragm product, the diaphragm product enters the conveyor belt 4 through the conveying device. The conveyor belt 4 is provided with positioning recesses, which allow the conveyor belt 4 to move the diaphragm product horizontally and pass through the guide plate 15. During this process, the diaphragm product squeezes the inclined arc surface of the guide plate 15, causing the guide plate 15 to be subjected to an inclined upward thrust. The guide plate 15 is restricted by the slide rod 14 and cannot move horizontally, thereby causing the guide plate 15 to drive the pressure roller 16 and the slide rod 14 to move upward and further extend the tension spring until the pressure roller 16 is located on the top surface of the diaphragm product. At this time, the height of the lowest point of the pressure roller 16 is the diaphragm height on the surface of the diaphragm product.

[0024] Example 2, please refer to Figure 1 and Figures 3-5 The present invention provides a technical solution: a coating isolation film detection device, wherein a slide rod 14 is slidably connected to the side wall of the second fixed frame 3 and the first fixed frame 2, and two slide rods 14 are provided. A guide plate 15 is fixedly connected between the two slide rods 14. A pressure roller 16 is hinged inside the guide plate 15. A rack 17 is fixedly connected to the side wall of the slide rod 14. A driven gear 18 is meshed on the side wall of the rack 17. A main bevel gear 19 is fixedly connected to the central axis of the driven gear 18. A secondary bevel gear 20 is meshed on the outer surface of the main bevel gear 19. A transmission sprocket 21 is fixedly connected to the central axis of the secondary bevel gear 20. One end of a chain 22 is meshed on the outer surface of the transmission sprocket 21. The other end of the chain 22 is meshed on the driven sprocket 23.

[0025] Please see Figure 1 and Figure 4The pressure roller 16 is in contact with the top surface of the conveyor belt 4. The side wall of the guide plate 15 is an inclined arc surface. The extension line of the inclined arc surface is tangent to the pressure roller 16. A tension spring is provided between the guide plate 15 and the conveyor belt 4.

[0026] Please see Figures 3-5 The top of the first fixed frame 2 has an inner cavity. The driven gear 18, the main bevel gear 19, the secondary bevel gear 20 and the transmission sprocket 21 are all rotatably connected to the side wall of the inner cavity. The chain 22 is sleeved on the first fixed frame 2. The driven sprocket 23 is fixedly connected to the first lead screw 8. The transmission ratio between the main bevel gear 19 and the secondary bevel gear 20 is 1. The transmission sprocket 21 and the driven sprocket 23 are the same size. The pitch of the first lead screw 8 is equal to the circumference of the driven gear 18.

[0027] Specifically, during the upward movement of the slide bar 14, the rack 17 on the slide bar 14 drives the driven gear 18 in the inner cavity to rotate, causing the main bevel gear 19 on the driven gear 18 to drive the secondary bevel gear 20 to rotate, thereby causing the transmission sprocket 21 on the secondary bevel gear 20 to rotate. The transmission sprocket 21 then drives the driven sprocket 23 to rotate via the chain 22, which in turn causes the first lead screw 8 on the driven sprocket 23 to rotate. The first lead screw 8 is threadedly connected to the first crossbar 7, and the first crossbar 7 is restricted from rotating by the guide rod 5, causing the first crossbar 7 to rise under the drive of the first lead screw 8. Since the transmission ratio between the main bevel gear 19 and the secondary bevel gear 20 is 1, and the transmission sprocket 21 and the driven sprocket 23 are of equal size, the driven gear 18 rotates one revolution, and the first lead screw 8 on the driven sprocket 23 also rotates. When the rack 17 rises to a height equal to the circumference of the driven gear 18, the driven gear 18 rotates one revolution, the first lead screw 8 rotates one revolution, and the first crossbar 7 on the first lead screw 8 rises by one pitch of the first lead screw 8. Since the pitch of the first lead screw 8 is equal to the circumference of the driven gear 18, the heights of the slide bar 14 and the rack 17 are equal to the heights of the first crossbar 7. This indirectly keeps the height of the industrial camera 10 and the lowest point of the pressure roller 16 constant, thereby ensuring a constant distance between the industrial camera 10 and the diaphragm surface. This prevents the image captured by the industrial camera 10 from going out of focus, ensures image quality, and improves detection accuracy. It eliminates the need for manual measurement of the diaphragm height and manual adjustment of the detection device, simplifying the adjustment process. It is suitable for high-speed production and allows the device to detect various diaphragm products.

[0028] Example 3, please refer to Figures 6-9This invention provides a technical solution: a coating isolation film detection device, wherein a meshing block 28 and a connecting block 29 are fixedly connected to the bottom surface of the mounting block 11, a fixing block 25 is fixedly connected to the bottom surface of the second crossbar 9, a bidirectional screw 26 is rotatably connected to the bottom end of the fixing block 25, a sliding groove 27 is provided on the external thread of the bidirectional screw 26, both ends of the bidirectional screw 26 are threadedly connected to the meshing block 28, and the bidirectional screw 26 is sleeved with the connecting block 29, and a vertical rod is fixedly connected to the side wall of the groove 24. 30. The top of the vertical rod 30 is rotatably connected to a second lead screw 31. The outer surface of the second lead screw 31 is threadedly connected to a translation block 32. The bottom end of the translation block 32 is hinged to one end of a lever 33. The other end of the lever 33 is fixedly connected to the rotating shaft 12. The end of the second lead screw 31 is fixedly connected to a driven roller 34. One end of a track 35 is sleeved on the outer surface of the driven roller 34. The other end of the track 35 is sleeved with a driving roller 36. The inner surface of the driving roller 36 is fixedly connected to a slider 37.

[0029] Please see Figure 8 and Figure 9 The active roller 36 is sleeved with the connecting block 29, the active roller 36 is sleeved with the bidirectional screw 26, the slider 37 is slidably connected with the slide groove 27, the track 35 is sleeved with the connecting block 29 and the mounting block 11, the second lead screw 31 is rotatably connected with the mounting block 11, the vertical rod 30 is parallel to the industrial camera 10, the central axis of the lever 33 coincides with the central axis of the LED light 13, and the central axis of the lever 33 intersects with the central axis of the rotating shaft 12.

[0030] Please see Figure 8 The bottom end of the vertical rod 30 is sleeved with the rotating shaft 12, the lever 33 is telescopic, and the height from the central axis of the second lead screw 31 to the central axis of the rotating shaft 12 is 1 / 10 of the height from the industrial camera 10 to the top surface of the conveyor belt 4. Therefore, the pitch of the second lead screw 31 is 1 / 10 of the pitch of the bidirectional screw 26.

[0031] Specifically, during the process of shortening the distance between the LED light 13 and the industrial camera 10, the translation block 32 moves towards the vertical rod 30 under the drive of the second lead screw 31. Simultaneously, the translation block 32 moves the top of the lever 33, causing the lever 33 to rotate around the central axis of the rotating shaft 12. At the same time, the lever 33 shortens, while remaining fixed to the rotating shaft 12. This ensures that the rotating lever 33 synchronously drives the rotating shaft 12 and the LED light 13 to rotate until the LED light 13 stops translating and rotating, thus automatically adjusting the angle of the LED light source. To ensure the accuracy of the LED light source angle, during the above process, the vertical rod 30 remains parallel to the industrial camera 10, and the central axis of the lever 33 coincides with the central axis of the LED lamp 13, meaning the lever 33 coincides with the incident light. The central axis of the lever 33 intersects the central axis of the rotating shaft 12. Therefore, the right triangle formed by the lever 33, the second lead screw 31, and the vertical rod 30 is completely similar to the right triangle formed by the incident light, the camera optical axis, and the bidirectional screw 26. To maintain the unchanged focusing position of the light source, the tangent of the tilt angle of the LED lamp 13 after the translation stops should be... H is the height from the industrial camera 10 to the top surface of the conveyor belt 4, and L is the horizontal distance from the LED light 13 at the initial position to the industrial camera 10. The translation distance of LED light 13 is given by the distance between the center axis of the second lead screw 31 and the center axis of the rotating shaft 12. The height between the center axis of the second lead screw 31 and the center axis of the rotating shaft 12 is 1 / 10 of the height between the industrial camera 10 and the top surface of the conveyor belt 4. At the same time, the pitch of the second lead screw 31 is 1 / 10 of the pitch of the bidirectional screw 26. Therefore, after LED light 13 stops translating, translation block 32 moves. / 10, at this point, the tangent of the tilt angle of lever 33 is equal to the tangent of the tilt angle of LED light 13 after the translation stops, equal to Let l be the initial distance between the translation block 32 and the vertical rod 30. Since the right triangle formed by the lever 33, the second lead screw 31, and the vertical rod 30 is completely similar to the right triangle formed by the incident light, the camera optical axis, and the bidirectional screw 26, the initial distance l between the translation block 32 and the vertical rod 30 is l = L / 10. Combining the two tangent values, the tilt angle of the rotated LED lamp 13 meets the tilt angle requirement of the LED lamp 13 when the light source focus position remains unchanged. This ensures that the focus position of the light source remains unchanged during the adjustment of the distance between the industrial camera 10 and the LED lamp 13, guaranteeing reliable measurement results. There is no need to measure the tilt angle of the LED lamp 13 in real time according to the focus position, saving time and effort while avoiding measurement errors and improving detection efficiency and quality.

[0032] The working principle and usage process of this invention: When it is necessary to test the diaphragm product, the diaphragm product enters the conveyor belt 4 through the conveying device. The conveyor belt 4 is provided with positioning recesses, which allows the conveyor belt 4 to translate the diaphragm product and pass through the guide plate 15. During this process, the diaphragm product squeezes the inclined arc surface of the guide plate 15, so that the guide plate 15 is subjected to an inclined upward thrust. The guide plate 15 is restricted by the slide rod 14 and cannot be translated, so that the guide plate 15 drives the pressure roller 16 and the slide rod 14 to move upward and further extend the tension spring until the pressure roller 16 is located on the top surface of the diaphragm product. At this time, the height of the lowest point of the pressure roller 16 is the diaphragm height on the surface of the diaphragm product. As the slide bar 14 moves upward, the rack 17 on the slide bar 14 drives the driven gear 18 in the inner cavity to rotate. This causes the main bevel gear 19 on the driven gear 18 to drive the secondary bevel gear 20 to rotate, which in turn causes the transmission sprocket 21 on the secondary bevel gear 20 to rotate. The transmission sprocket 21 then drives the driven sprocket 23 to rotate via the chain 22, which in turn causes the first lead screw 8 on the driven sprocket 23 to rotate. The first lead screw 8 is threadedly connected to the first crossbar 7, and the first crossbar 7 is restricted from rotating by the guide rod 5. This causes the first crossbar 7 to rise under the drive of the first lead screw 8. The transmission ratio between the main bevel gear 19 and the secondary bevel gear 20 is 1, and the transmission sprocket 21 and the driven sprocket 23 are of equal size. This causes the driven gear 18 to rotate once, and the first lead screw 8 on the driven sprocket 23 to rotate once. When the rack 17 rises to a height equal to the circumference of the driven gear 18, the driven gear 18 rotates one revolution, the first lead screw 8 rotates one revolution, and the first crossbar 7 on the first lead screw 8 rises by one pitch of the first lead screw 8. Since the pitch of the first lead screw 8 is equal to the circumference of the driven gear 18, the heights of the slide bar 14 and the rack 17 are equal to the heights of the first crossbar 7. This indirectly keeps the height of the industrial camera 10 and the lowest point of the pressure roller 16 constant, thereby ensuring that the distance between the industrial camera 10 and the diaphragm surface is constant. This prevents the image captured by the industrial camera 10 from going out of focus, ensures the quality of the image, improves the detection accuracy, eliminates the need for manual measurement of the diaphragm height, and eliminates the need for manual adjustment of the detection device. This simplifies the adjustment process, makes it suitable for high-speed production, and enables the device to detect a variety of diaphragm products. When the distance between LED light 13 and industrial camera 10 needs to be shortened due to changes in the diaphragm product, the bidirectional screw 26 is manually rotated. This causes the engagement blocks 28 at both ends of the bidirectional screw 26 to move toward the industrial camera 10. This indirectly causes the mounting block 11 on the engagement block 28 to move the LED light 13 toward the industrial camera 10, thereby shortening the distance between the LED light 13 and the industrial camera 10 until the distance reaches the preset value. It should be further explained that as the mounting block 11 moves, the connecting block 29 on the mounting block 11 slides along the bidirectional screw 26. Because the connecting block 29 is sleeved with the bidirectional screw 26, the bidirectional screw 26 cannot apply resistance to the connecting block 29. Similarly, the driving roller 36 is also sleeved with the bidirectional screw 26, and the bidirectional screw 26 cannot apply resistance to the driving roller 36 either. Even the cooperation between the slider 37 and the groove 27 cannot prevent the slider 37 and the driving roller 36 on it from moving. When the aforementioned bidirectional screw 26 rotates and drives the LED light 13 to translate, the rotating bidirectional screw 26 drives the slider 37 to rotate through the slide groove 27. This causes the slider 37 to revolve around the central axis of the bidirectional screw 26 while translating, allowing the slider 37 to drive the drive roller 36 to rotate. This causes the track 35 on the drive roller 36 to rotate, which in turn causes the other end of the track 35 to drive the driven roller 34 to rotate. This causes the second lead screw 31 on the driven roller 34 to rotate, while the translation block 32 on the second lead screw 31 is limited by the lever 33. The rotation of the lever 32 causes the translation block 32 to move towards the vertical rod 30 under the drive of the second lead screw 31. At the same time, the translation block 32 will drive the top of the lever 33 to move, causing the lever 33 to rotate around the central axis of the rotating shaft 12. Simultaneously, the lever 33 shortens, while the lever 33 is fixed to the rotating shaft 12. This allows the rotating lever 33 to synchronously drive the rotating shaft 12 and the LED light 13 to rotate until the LED light 13 stops translating and stops rotating. This can automatically complete the adjustment of the LED light source angle and ensure the accuracy of the LED light source angle. During the above process, the vertical rod 30 remains parallel to the industrial camera 10, and the central axis of the lever 33 coincides with the central axis of the LED lamp 13, meaning the lever 33 coincides with the incident light. The central axis of the lever 33 intersects the central axis of the rotating shaft 12. Therefore, the right triangle formed by the lever 33, the second lead screw 31, and the vertical rod 30 is completely similar to the right triangle formed by the incident light, the camera optical axis, and the bidirectional screw 26. To maintain the focused position of the light source, the tangent of the tilt angle of the LED lamp 13 after the translation stops should be... H is the height from the industrial camera 10 to the top surface of the conveyor belt 4, and L is the horizontal distance from the LED light 13 at the initial position to the industrial camera 10. The translation distance of LED light 13 is given by the distance between the center axis of the second lead screw 31 and the center axis of the rotating shaft 12. The height between the center axis of the second lead screw 31 and the center axis of the rotating shaft 12 is 1 / 10 of the height between the industrial camera 10 and the top surface of the conveyor belt 4. At the same time, the pitch of the second lead screw 31 is 1 / 10 of the pitch of the bidirectional screw 26. Therefore, after LED light 13 stops translating, translation block 32 moves. / 10, at this point, the tangent of the tilt angle of lever 33 is equal to the tangent of the tilt angle of LED light 13 after the translation stops, equal to Let l be the initial distance between the translation block 32 and the vertical rod 30. Since the right triangle formed by the lever 33, the second lead screw 31, and the vertical rod 30 is completely similar to the right triangle formed by the incident light, the camera optical axis, and the bidirectional screw 26, the initial distance l between the translation block 32 and the vertical rod 30 is l = L / 10. Combining the two tangent values, the tilt angle of the rotated LED lamp 13 meets the tilt angle requirement of the LED lamp 13 when the light source focus position remains unchanged. This ensures that the focus position of the light source remains unchanged during the adjustment of the distance between the industrial camera 10 and the LED lamp 13, guaranteeing reliable measurement results. There is no need to measure the tilt angle of the LED lamp 13 in real time according to the focus position, saving time and effort while avoiding measurement errors, improving detection efficiency and detection quality, and completing the operation.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A detection device for coated isolation membrane, characterized in that, The device includes a base (1), one end of which is fixedly connected to a first fixed frame (2), and the other end of which is fixedly connected to a second fixed frame (3). A conveyor belt (4) is installed between the second fixed frame (3) and the first fixed frame (2). A guide rod (5) is fixedly connected to the top surface of the base (1). A bracket (6) and a first crossbar (7) are fitted around the guide rod (5). A first lead screw (8) is rotatably connected to the top surface of the first fixed frame (2). A second crossbar (9) is slidably connected to the bottom surface of the first crossbar (7). An industrial camera (10) is snapped onto the second crossbar (9). Mounting blocks (11) are fitted at both ends of the second crossbar (9). A groove (24) is opened at the bottom end of the mounting block (11). A rotating shaft (12) is fitted at the bottom end of the mounting block (11). An LED light (13) is fixedly connected to the end of the rotating shaft (12).

2. The coating isolation film detection device according to claim 1, characterized in that: There are two brackets (6), which are symmetrically arranged about the first crossbar (7). The top of the bracket (6) is fixed to the first crossbar (7). The guide rod (5) is arranged in a U-shape. The LED light (13) is sleeved on the bottom of the mounting block (11). The first lead screw (8) is threadedly connected to the first crossbar (7).

3. The coating isolation film detection device according to claim 1, characterized in that: The second fixed frame (3) and the first fixed frame (2) are slidably connected to the side walls of the sliding rod (14). There are two sliding rods (14). A guide plate (15) is fixed between the two sliding rods (14). A pressure roller (16) is hinged in the guide plate (15). A rack (17) is fixed to the side wall of the sliding rod (14). A driven gear (18) is meshed on the side wall of the rack (17). A main bevel gear (19) is fixed to the central axis of the driven gear (18). A secondary bevel gear (20) is meshed on the outer surface of the main bevel gear (19). A transmission sprocket (21) is fixed to the central axis of the secondary bevel gear (20). One end of a chain (22) is meshed on the outer surface of the transmission sprocket (21). The other end of the chain (22) is meshed with a driven sprocket (23).

4. The coating isolation film detection device according to claim 3, characterized in that: The pressure roller (16) is in contact with the top surface of the conveyor belt (4). The side wall of the guide plate (15) is an inclined arc surface. The extension line of the inclined arc surface is tangent to the pressure roller (16). A tension spring is provided between the guide plate (15) and the conveyor belt (4).

5. The coating isolation film detection device according to claim 3, characterized in that: The top of the first fixed frame (2) has an inner cavity. The driven gear (18), main bevel gear (19), secondary bevel gear (20) and transmission sprocket (21) are rotatably connected to the side wall of the inner cavity. The chain (22) is sleeved on the first fixed frame (2). The driven sprocket (23) is fixedly connected to the first lead screw (8). The transmission ratio between the main bevel gear (19) and the secondary bevel gear (20) is 1. The transmission sprocket (21) and the driven sprocket (23) are the same size. The pitch of the first lead screw (8) is equal to the circumference of the driven gear (18).

6. The coating isolation film detection device according to claim 1, characterized in that: The bottom surface of the mounting block (11) is fixedly connected to a meshing block (28) and a connecting block (29). The bottom surface of the second crossbar (9) is fixedly connected to a fixing block (25). The bottom end of the fixing block (25) is rotatably connected to a bidirectional screw (26). A groove (27) is provided on the external thread of the bidirectional screw (26). Both ends of the bidirectional screw (26) are threadedly connected to the meshing block (28), and the bidirectional screw (26) is sleeved with the connecting block (29). A vertical rod (30) is fixedly connected to the side wall of the groove (24). The top end of the vertical rod (30) rotates. A second lead screw (31) is connected, and a translation block (32) is threadedly connected to the outer surface of the second lead screw (31). One end of a lever (33) is hinged to the bottom end of the translation block (32), and the other end of the lever (33) is fixedly connected to the rotating shaft (12). A driven roller (34) is fixedly connected to the end of the second lead screw (31). One end of a track (35) is sleeved on the outer surface of the driven roller (34), and a driving roller (36) is sleeved on the other end of the track (35). A slider (37) is fixedly connected to the inner surface of the driving roller (36).

7. The coating isolation film detection device according to claim 6, characterized in that: The active roller (36) is sleeved with the connecting block (29), the active roller (36) is sleeved with the bidirectional screw (26), the slider (37) is slidably connected with the slide groove (27), the track (35) is sleeved with the connecting block (29) and the mounting block (11), the second lead screw (31) is rotatably connected with the mounting block (11), the vertical rod (30) is parallel to the industrial camera (10), the central axis of the lever (33) coincides with the central axis of the LED light (13), and the central axis of the lever (33) intersects with the central axis of the rotating shaft (12).

8. The coating isolation film detection device according to claim 6, characterized in that: The bottom end of the vertical rod (30) is sleeved with the rotating shaft (12), the lever (33) is telescopic, and the height from the central axis of the second lead screw (31) to the central axis of the rotating shaft (12) is 1 / 10 of the height from the industrial camera (10) to the top surface of the conveyor belt (4). Therefore, the pitch of the second lead screw (31) is 1 / 10 of the pitch of the bidirectional screw (26).

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