Film production detection equipment and detection method

Abstract

The invention relates to the technical field of thin film detection, in particular to thin film production detection equipment and method.The equipment comprises a winding and unwinding device, a conveying structure, a first detection device, a second detection device and a controller, and the winding and unwinding device comprises a discharging roller shaft and a winding roller shaft; the conveying structure comprises two mounting side plates and a plurality of pressing roll shafts located between the mounting side plates. The first detection device comprises a landing frame, a lifting assembly, a supporting plate, a limiting assembly, a first industrial camera and a first illumination part; the second detection device comprises a mounting frame, an adjusting assembly, a second industrial camera and a second illumination part; the controller is used for controlling and adjusting the lifting assembly, the limiting assembly, the adjusting assembly, the first industrial camera and the second industrial camera. According to the thin film production detection equipment and the detection method, the hardware cost can be remarkably reduced, the coverage capability and the positioning precision of a detection system cannot be reduced, and a relatively good balance is achieved between the cost and the performance.

Description

Technical Field

[0001] This invention relates to the field of thin film testing technology, specifically to a thin film production testing equipment and testing method. Background Technology

[0002] In the thin film production process, visual inspection of surface defects is necessary to ensure product quality. Currently, the main inspection method relies on machine vision systems, which typically arrange multiple industrial cameras along the width of the film to cover the entire width and acquire high-resolution images. Specifically, three to four industrial cameras are fixedly installed at equal intervals on the production line beam. Each camera is responsible for acquiring images of a certain width area of ​​the film. These images are then stitched and analyzed using image processing software to achieve full-coverage inspection of the film surface. This inspection method can obtain complete and continuous image information with high accuracy. However, it also has other drawbacks. First, the related production costs are high, as the industrial cameras and their lenses are expensive, increasing both initial investment and subsequent maintenance costs. Second, regarding the storage system, when the film is defect-free or only has localized defects, multiple cameras simultaneously acquiring and processing the entire width generates a large amount of redundant image data. This not only places higher demands on the computing power of the image processing system but may also affect the overall processing speed and real-time performance of the inspection system.

[0003] To address the aforementioned issues, reducing the number of industrial cameras used to lower costs may not meet the film width requirements. However, using wide-angle lenses to cover the entire film width can result in low resolution in local image areas, affecting detection accuracy. Summary of the Invention

[0004] To address the aforementioned problems, the main objective of this invention is to provide a thin film production testing equipment and method that can significantly reduce hardware costs without compromising the coverage and positioning accuracy of the testing system, achieving a better balance between cost and performance.

[0005] To achieve the above objectives, the present invention provides a film production inspection device, comprising a take-up and untake-up device, a conveying structure, a first inspection device, a second inspection device, and a controller. The take-up and untake-up device includes a feed roller and a roll roller. The conveying structure includes two mounting side plates and a plurality of pressing rollers located between the mounting side plates. The first inspection device includes a floor frame, a lifting assembly, a support plate, a limiting assembly, a first industrial camera, and a first lighting element. The second inspection device includes a mounting frame, an adjustment assembly, a second industrial camera, and a second lighting element. The controller is used to control and adjust the lifting assembly, the limiting assembly, the adjustment assembly, the first industrial camera, and the second industrial camera. After receiving the image acquired by the first industrial camera and identifying suspected film defect areas, the controller then controls the second industrial camera to move so that it is aligned with the film defect areas for precise image acquisition.

[0006] Preferably, support frames are provided on both sides of the feeding roller shaft and the winding roller shaft, the support frames are fixed on a horizontal plane, and a first drive motor is provided at any end of the winding roller shaft. The first drive motor is fixed on the support frame, and the output end of the first drive motor is connected to one end of the winding roller shaft.

[0007] Preferably, the bottom of the mounting side plate is provided with a base, the base is located on a horizontal plane, and the pressure roller shaft is rotatably mounted between the two mounting side plates.

[0008] Preferably, the bottom of the floor frame is fixed on a horizontal plane, the floor frame spans across the top of the mounting side plate, and the lifting assembly includes a second drive motor, a threaded rod and a limiting rod. The second drive motor is fixed to the top of the floor frame, the output end of the second drive motor passes through the floor frame and is connected to the top of the threaded rod, and the upper end of the limiting rod is fixed to the floor frame.

[0009] Preferably, the support plate is provided with a threaded hole and a limiting hole, the threaded rod is screwed into the threaded hole, the limiting rod is located in the limiting hole, the outer side of the support plate is provided with a protruding plate, and the limiting component is located on the protruding plate.

[0010] Preferably, the limiting assembly includes a third drive motor, a first threaded screw, two positioning plates, a sliding block, and a connecting rod. The positioning plates are fixed at both ends of the protruding plate, and the third drive motor is mounted on any one of the positioning plates.

[0011] Preferably, the first threaded screw is rotatably mounted between two positioning plates, the output end of the third drive motor is connected to one end of the first threaded screw, the sliding block is provided with a through hole, the inner wall of the through hole is provided with an internal thread structure, the first threaded screw is located in the through hole, and the outer wall thread of the first threaded screw is engaged with the internal thread structure of the through hole.

[0012] Preferably, the top and bottom surfaces of the raised plate are respectively provided with grooves distributed along their length direction, the sliding block is sleeved on the outside of the raised plate, and the sliding block is provided with an upper raised block and a lower raised block inside, the upper raised block and the lower raised block are respectively located in the grooves of the raised plate, and the connecting rod is fixed on the outer side of the sliding block.

[0013] Preferably, both ends of the mounting bracket are connected to the mounting side plate, and the adjustment assembly includes a fourth drive motor, a second threaded screw, and a moving block. The fourth drive motor is fixed on the mounting bracket, and the second threaded screw is rotatably located inside the mounting bracket. The output end of the fourth drive motor is connected to one end of the second threaded screw.

[0014] In addition, the present invention also provides a method for testing thin film production, comprising the following steps: Step S1: Insert the feeding roller shaft into the roll of film to be tested and fix it. The film on the roll passes through the pressure roller shafts in sequence and is finally wound onto the winding roller shaft. By starting the first drive motor on one side of the winding roller shaft, the film can be automatically wound onto the winding roller shaft after the test is completed. Step S2: The first illumination element in the first detection device can increase the brightness of the thin film passing over it, and the first industrial camera is located above the first illumination element. After adjusting the position of the first industrial camera by the cooperation of the lifting component and the limiting component, the thin film can be read and the read image is sent to the controller. Step S3: If the first industrial camera detects a defect in the film, the controller can adjust the position of the second industrial camera through the adjustment component to read a clearer image of the film defect, thereby obtaining a detailed image.

[0015] The beneficial effects of the present invention through the above technical solution include: (1) The film production inspection equipment of the present invention is provided with a first inspection device and a second inspection device. The first inspection device is provided with a first industrial camera, which can perform preliminary inspection on the film. The second industrial camera of the second inspection device can, under the control of the controller, adjust the adjustment components to acquire clearer images of the defective parts detected by the first industrial camera in a timely manner. (2) In addition, the first industrial camera of the first detection device of the present invention can also achieve adaptive adjustment of position by cooperating with the lifting component and the limiting component, thereby adjusting the image shooting height and amplitude of the first industrial camera. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of the thin film production and testing equipment of the present invention.

[0018] Figure 2 This is a partial structural schematic diagram of the thin film production and testing equipment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of the second testing device in the thin film production testing equipment of the present invention.

[0020] Figure 4 This is a schematic diagram of the structure of the first or second lighting element of the thin film production and testing equipment of the present invention.

[0021] Figure 5 This is a schematic diagram of the thin film production and testing equipment of the present invention in use.

[0022] Explanation of reference numerals in the attached drawings: 10. Film; 11. Feeding roller shaft; 12. Rolling roller shaft; 13. Support frame; 21. Mounting side plate; 22. Pressing roller shaft; 23. Base; 31. Floor frame; 311. T-slot; 32. Lifting assembly; 321. Threaded rod; 322. Limiting rod; 33. Support plate; 331. Threaded hole; 332. Limiting hole; 333. Protruding plate; 3331. Slide groove; 334. Sliding block; 34. Limiting assembly; 341. First threaded screw; 34 2. Positioning plate; 343. Sliding block; 3431. Upper protrusion block; 344. Connecting rod; 35. First industrial camera; 36. First lighting component; 41. Mounting bracket; 42. Adjustment assembly; 421. Second threaded screw; 422. Moving block; 43. Second industrial camera; 44. Second lighting component; 51. First drive motor; 52. Second drive motor; 53. Third drive motor; 54. Fourth drive motor; 61. Side baffle; 62. Lighting lamp; 63. Cover plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] First Embodiment like Figure 1 The diagram shows the structure of the film production and testing equipment of the present invention. This embodiment of the film production and testing equipment includes a take-up and untake-up device, a conveying structure, a first testing device, and a controller. The take-up and untake-up device includes a feed roller 11 and a roll roller 12. The feed roller 11 is used to hold the film during production, and the roll roller 12 is used to roll up the film after testing. Figure 1As shown, support frames 13 are provided on both sides of the feeding roller shaft 11 and the winding roller shaft 12. The support frames 13 are fixed on the horizontal plane. A first drive motor 51 is provided at any end of the winding roller shaft 12. The first drive motor 51 is fixed on the support frame 13, and the output end of the first drive motor 51 is connected to one end of the winding roller shaft 12. The first drive motor 51 can drive the winding roller shaft 12 to rotate, thereby driving the film 10 to be automatically fed and wound in the equipment of this embodiment.

[0025] Please continue reading. Figure 1 and Figure 2 As shown, the conveying structure of this embodiment has two mounting side plates 21 and a plurality of pressing roller shafts 22 located between the mounting side plates 21. A base 23 is provided at the bottom of the mounting side plates 21, and the base 23 is located on a horizontal plane. The pressing roller shafts 22 are rotatably mounted between the two mounting side plates 21. Figure 1 and Figure 2 As shown, in this embodiment, the first detection device includes a floor frame 31, a lifting assembly 32, a support plate 33, a first industrial camera 35, and a first lighting element 36. The bottom of the floor frame 31 is fixed to a horizontal plane and spans across the mounting side plate 21. The lifting assembly 32 includes a second drive motor 52, a threaded rod 321, and a limiting rod 322. The second drive motor 52 is fixed to the top of the floor frame 31, and its output end passes through the floor frame 31 and connects to the top of the threaded rod 321. The upper end of the limiting rod 322 is fixed to the floor frame 31. Additionally, the support plate 33 has a threaded hole 331 and a limiting hole 332. The threaded rod 321 is screwed into the threaded hole 331, and the limiting rod 322 is located within the limiting hole 332.

[0026] In other embodiments, sliders 334 are provided at both ends of the support plate 33, and a T-shaped groove 311 is provided at the upper end of the inner side of the floor frame 31, with the sliders 334 located within the T-shaped groove 311. During use, the lifting assembly 32 of this embodiment drives the threaded rod 321 to rotate via the second drive motor 52. As the threaded rod 321 rotates, it drives the support plate 33 to move upwards or downwards. During the movement of the support plate 33, the limiting rod 322 moves within the limiting hole 332 in the support plate 33, providing a limiting function for the support plate 33. The sliders 334 on both sides of the support plate 33 move within the T-shaped groove 311, improving the stability of the support plate 33 during movement, thereby adjusting the height of the support plate 33.

[0027] Please continue reading. Figure 1 and Figure 2As shown, the outer side of the support plate 33 in this embodiment is provided with a protruding plate 333, and the first detection device is also provided with a limiting component 34. The limiting component 34 is located on the protruding plate 333. The limiting component 34 is provided with a third drive motor 53, a first threaded rod 341, two positioning plates 342, a sliding block 343 and a connecting rod 344. The positioning plates 342 are fixed at both ends of the protruding plate 333. The third drive motor 53 is installed on any one of the positioning plates 342. The first threaded rod 341 is rotatably installed between the two positioning plates 342. The output end of the third drive motor 53 is connected to one end of the first threaded rod 341. The sliding block 343 is provided with a through hole. The inner wall of the through hole is provided with an internal thread structure. The first threaded rod 341 is located in the through hole. The outer thread of the first threaded rod 341 is engaged with the internal thread structure of the through hole. In addition, the top and bottom surfaces of the protruding plate 333 in this embodiment are respectively provided with grooves 3331 distributed along its length direction. The sliding block 343 is sleeved on the outside of the protruding plate 333. The sliding block 343 is provided with an upper protrusion 3431 and a lower protrusion (not shown in the figure). The upper protrusion 3431 and the lower protrusion have the same structure and are symmetrically arranged. The upper protrusion 3431 and the lower protrusion are respectively located in the grooves 3331 of the protruding plate 333. The connecting rod 344 is fixed on the outer side of the sliding block 343, and the connecting rod 344 is fixedly connected to the first industrial camera 35.

[0028] In this embodiment, the limiting component 34, during use, can drive the first threaded screw 341 to rotate via the third drive motor 53. This causes the sliding block 343, which is sleeved on the first threaded screw 341, to move along the length of the first threaded screw 341. During this movement, since the upper protrusion 3431 and the lower protrusion 3431 slide within the grooves 3331 on the protrusion plate 333, the sliding block 343 is prevented from deviating from the protrusion plate 333, thereby improving the stability of the horizontal position adjustment of the first industrial camera 35. Overall, in this embodiment, the height of the first industrial camera 35 can be adjusted by the lifting component 32, and its position on the horizontal plane can be adjusted by the limiting component 34, thus adapting to the detection of films 10 of different specifications and widths.

[0029] Second Embodiment The difference between the second embodiment of the present invention and the previous embodiment is that the thin film production and testing equipment in this embodiment is further provided with a second testing device, such as... Figure 1 and Figure 3As shown, the second detection device in this embodiment includes a mounting frame 41, an adjustment assembly 42, a second industrial camera 43, and a second illumination element 44. Both ends of the mounting frame 41 are fixedly connected to the mounting side plate 21. The adjustment assembly 42 includes a fourth drive motor 54, a second threaded screw 421, and a moving block 422. The fourth drive motor 54 is fixed on the mounting frame 41, and the second threaded screw 421 is rotatably located inside the mounting frame 41. The output end of the fourth drive motor 54 is connected to one end of the second threaded screw 421. The fourth drive motor 54 drives the second threaded screw 421 to rotate, thereby driving the moving block 422 to move and adjusting the position of the second industrial camera 43.

[0030] Please see Figure 4 As shown, in this embodiment, the first illumination element 36 and the second illumination element 44 have the same structure, each including two side baffles 61, an illumination lamp 62 and two shielding plates 63. The side baffles 61 are fixed on the mounting side plate 21, the illumination lamp 62 is fixed between the two side baffles 61, and the shielding plates 63 are located on the front and rear sides of the illumination lamp 62 to shield the light source scattered on both sides of the illumination lamp 62, so that the tube bundle illuminated by the illumination lamp 62 is more focused, thereby improving the detection accuracy.

[0031] The controller of this invention is used to control and adjust the lifting assembly 32, the limiting assembly 34, the adjusting assembly 42, the first industrial camera 35, and the second industrial camera 43. This invention also includes related modules such as an image analysis system and an image storage system. These modules are already disclosed in the prior art and will not be described in detail here. In this embodiment, during use, the first industrial camera 35 first performs preliminary inspection of the film 10. The second industrial camera 43 of the second inspection device, under the control of the controller and through the adjustment of the adjusting assembly 42, can promptly acquire clearer images of the defective areas detected by the first industrial camera 35. This embodiment uses only two industrial cameras to obtain more accurate image information, reducing production costs while avoiding the storage of excessive qualified film image information, which could affect the efficiency of the entire system.

[0032] Third Embodiment In addition, such as Figure 5 As shown, the present invention also provides a method for testing thin film production, comprising the following steps: Step S1: Insert the feeding roller 11 into the roll of the film 10 to be tested and fix it. The film 10 on the roll passes through the pressure roller 22 in sequence and is finally wound onto the winding roller 12. By starting the first drive motor 51 on one side of the winding roller 12, the film 10 can be automatically wound onto the winding roller 12 after the test is completed. Step S2: The first illumination element 36 in the first detection device can increase the brightness of the thin film 10 passing above it, and the first industrial camera 35 is located above the first illumination element 36. After adjusting the position of the first industrial camera 35 by the cooperation of the lifting component 32 and the limiting component 34, the image of the thin film 10 can be read and the read image is sent to the controller. Step S3: If the first industrial camera 35 detects a defect at the film 10, the controller can adjust the position of the second industrial camera 43 through the adjustment component 42 to read a clearer image of the film defect, thereby obtaining a detailed image.

[0033] Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

Claims

1. A thin film production testing device, characterized in that, include: The take-up and unload device includes a feed roller (11) and a roll roller (12). The conveying structure includes two mounting side plates (21) and a plurality of pressure rollers (22) located between the mounting side plates (21). The first detection device includes a floor frame (31), a lifting assembly (32), a support plate (33), a limiting assembly (34), a first industrial camera (35), and a first lighting component (36). The second detection device includes a mounting bracket (41), an adjustment assembly (42), a second industrial camera (43), and a second lighting element (44). The controller is used to control and adjust the lifting assembly (32), the limiting assembly (34), the adjusting assembly (42), the first industrial camera (35), and the second industrial camera (43). After receiving the image acquired by the first industrial camera (35) and identifying the suspected defect area of ​​the film (10), the controller controls the movement of the second industrial camera (43) so that it is aligned with the defect area of ​​the film (10) for precise image acquisition.

2. The thin film production and testing equipment according to claim 1, characterized in that, The feeding roller shaft (11) and the winding roller shaft (12) are respectively provided with support frames (13) on both sides. The support frames (13) are fixed on the horizontal plane. A first drive motor (51) is provided at any end of the winding roller shaft (12). The first drive motor (51) is fixed on the support frame (13), and the output end of the first drive motor (51) is connected to one end of the winding roller shaft (12).

3. The thin film production and testing equipment according to claim 1, characterized in that, The bottom of the mounting side plate (21) is provided with a base (23), the base (23) is located on a horizontal plane, and the pressing roller shaft (22) is rotatably mounted between the two mounting side plates (21).

4. The thin film production testing equipment according to claim 1, characterized in that, The bottom of the floor frame (31) is fixed on a horizontal plane. The floor frame (31) spans across the mounting side plate (21). The lifting assembly (32) includes a second drive motor (52), a threaded rod (321), and a limiting rod (322). The second drive motor (52) is fixed to the top of the floor frame (31). The output end of the second drive motor (52) passes through the floor frame (31) and is connected to the top end of the threaded rod (321). The upper end of the limiting rod (322) is fixed on the floor frame (31).

5. The thin film production and testing equipment according to claim 4, characterized in that, The support plate (33) is provided with a threaded hole (331) and a limiting hole (332). The threaded rod (321) is screwed into the threaded hole (331), and the limiting rod (322) is located in the limiting hole (332). The outer side of the support plate (33) is provided with a protruding plate (333), and the limiting component (34) is located on the protruding plate (333).

6. The thin film production testing equipment according to claim 5, characterized in that, The limiting component (34) includes a third drive motor (53), a first threaded screw (341), two positioning plates (342), a sliding block (343), and a connecting rod (344). The positioning plates (342) are fixed at both ends of the protruding plate (333), and the third drive motor (53) is mounted on any one of the positioning plates (342).

7. The thin film production testing equipment according to claim 6, characterized in that, The first threaded screw (341) is rotatably mounted between two positioning plates (342). The output end of the third drive motor (53) is connected to one end of the first threaded screw (341). The sliding block (343) is provided with a through hole. The inner wall of the through hole is provided with an internal thread structure. The first threaded screw (341) is located in the through hole. The outer thread of the first threaded screw (341) is engaged with the internal thread structure of the through hole.

8. The thin film production and testing equipment according to claim 7, characterized in that, The top and bottom surfaces of the protruding plate (333) are respectively provided with grooves (3331) distributed along its length direction. The sliding block (343) is sleeved on the outside of the protruding plate (333). The sliding block (343) is provided with an upper protrusion (3431) and a lower protrusion inside. The upper protrusion (3431) and the lower protrusion are respectively located in the grooves (3331) of the protruding plate (333). The connecting rod (344) is fixed on the outer side of the sliding block (343).

9. The thin film production testing equipment according to claim 1, characterized in that, The two ends of the mounting bracket (41) are connected to the mounting side plate (21). The adjustment component (42) includes a fourth drive motor (54), a second threaded screw (421), and a moving block (422). The fourth drive motor (54) is fixed on the mounting bracket (41). The second threaded screw (421) is rotatably located inside the mounting bracket (41). The output end of the fourth drive motor (54) is connected to one end of the second threaded screw (421).

10. A method for testing thin film production, characterized in that, Includes the following steps: Step S1: Insert the feeding roller (11) into the film roll to be tested and fix it. The film on the roll passes through the pressing roller (22) in sequence and is finally rolled onto the winding roller (12). By starting the first drive motor (51) on one side of the winding roller (12), the film can be automatically rolled onto the winding roller (12) after the test is completed. Step S2: The first illumination element (36) in the first detection device can increase the brightness of the film passing over it, and the first industrial camera (35) is located above the first illumination element (36). After adjusting the position of the first industrial camera (35) by the cooperation of the lifting component (32) and the limiting component (34), the film can be image read and the read image is sent to the controller. Step S3: If the first industrial camera (35) detects a defect in the film, the controller can adjust the position of the second industrial camera (43) through the adjustment component (42) to read a clearer image of the film defect, thereby obtaining a detailed image.

Images