Film appearance detection device

Abstract

The utility model discloses a film appearance detection device which comprises a detection box internally provided with a cavity, a non-transparent back plate arranged in the cavity, a driving mechanism for driving the back plate to rotate, clamps for clamping a film arranged at two ends of the back plate, an operation port arranged on the detection box, a sealing door connected with the operation port, and a control device connected with the sealing door, a first light source is arranged above the back plate in the cavity, a second light source and an image acquisition unit are arranged on the left side of the back plate, and the image acquisition unit, the rotary driving mechanism, the first light source and the second light source are electrically connected with the controller. According to the utility model, the thin film is placed in the detection box and is fixed through the back plate, and then the rotation driving mechanism is started to drive the back plate to drive the thin film to rotate. In the process, the image acquisition unit acquires image information of the thin film in real time and transmits the information to the controller for intelligent identification. Therefore, the efficiency and the accuracy of film detection are improved.

Description

Technical Field

[0001] This utility model relates to the field of thin film testing equipment, specifically to a thin film appearance testing device. Background Technology

[0002] Thin films, as a novel material, possess characteristics such as thinness and flexibility, and are widely used in electronics, optics, packaging, and other fields. However, various defects, such as fraying and scratches, are prone to occur during the production process of thin films. Therefore, it is necessary to inspect for appearance defects in thin films and reject unqualified products. Existing thin film appearance inspection usually involves inspectors cutting a sample from a roll of film and then inspecting it by flipping it under a light source. This inspection method is entirely manual, which is not only inefficient and prone to missing defects, but also causes irreversible damage to the inspectors' eyes with prolonged use. Utility Model Content

[0003] Based on this, and in response to the above problems, this utility model provides a thin film appearance inspection device.

[0004] The objective of this utility model can be achieved through the following technical solutions:

[0005] A film appearance inspection device includes an inspection box with an internal cavity, an opaque back plate disposed within the cavity for laying and fixing the film, and a drive mechanism connected to the back plate for driving the back plate to rotate. The back plate has clips at both ends for clamping the film. An operation port is provided on the top of the inspection box, and a sealing door for sealing the operation port is connected to the operation port. A first light source is provided above the back plate in the cavity, and a second light source and an image acquisition unit are provided on the left side of the back plate. The device also includes a controller, and the image acquisition unit, the rotation drive mechanism, the first light source, and the second light source are all electrically connected to the controller.

[0006] Using the above technical solution, the film to be tested is placed in the testing chamber through the operating port and fixed by the back plate. Then, the rotation drive mechanism is activated, driving the back plate to rotate with the film. During this process, the image acquisition unit acquires image information of the film in real time and transmits it to the controller for image analysis and processing. Once a defect is detected in the film, the controller immediately triggers an alarm mechanism.

[0007] In a specific embodiment of this utility model: the back panel is a black acrylic sheet. Using a black acrylic sheet can reduce light reflection and scattering.

[0008] In a specific embodiment of this utility model: the rotary drive mechanism is a motor, the motor is fixed on the inner wall of the rear panel of the detection box, and the back plate is connected to the output shaft of the motor.

[0009] In a specific embodiment of this utility model: the image collection unit adopts a high-speed camera.

[0010] In summary, this invention places the film to be inspected into the inspection chamber through the operating port and clamps it to the back plate. A motor is then started, driving the back plate to rotate the film. A camera collects real-time image information of the film and transmits it to the controller for processing and identification. Once a defect is detected in the film, the controller immediately triggers an alarm mechanism. This not only improves the efficiency and accuracy of film inspection but also significantly reduces the labor intensity of manual inspection. Furthermore, by setting up a first light source and a second light source, the film to be inspected can be illuminated from different angles and positions, thereby improving the clarity and accuracy of image acquisition. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of a thin film appearance inspection device according to the present invention. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figure 1 As shown, this utility model is a film appearance inspection device, including an inspection box 10 with an internal cavity 11, an opaque back plate 121 disposed in the cavity 11 for laying and fixing the film, and a rotation drive mechanism connected to the back plate 121 for driving the back plate to rotate. The back plate 121 has clips 122 at both ends for clamping the film.

[0015] In this embodiment, the back panel 121 is a black acrylic sheet. Using a black acrylic sheet can reduce light reflection and scattering.

[0016] In this invention, the rotary drive mechanism uses a motor 13. The motor 13 is fixed to the inner wall of the rear panel 102, and the back plate 121 is connected to the output shaft 131 of the motor 13. It should be noted that when detecting scratches on a film, because the specific location and depth of the scratches vary, their response to the angle of light illumination will also differ. At certain light angles, scratches are clearly visible, while at other angles they are difficult to detect. Thus, by rotating the back plate, the relative angle between the light and the scratches on the film can be changed, making it easier to detect scratches that are only visible at different angles during rotation. This improves the accuracy and efficiency of scratch detection.

[0017] In addition, an operation port 14 is provided on the front panel 101 of the testing chamber 10. A sealing door 15 for sealing the operation port is also connected to the operation port 14. In this way, by opening the sealing door 14, the film 9 to be tested can be easily placed into the cavity and clamped onto the back plate 121.

[0018] A first light source 20 is located above the film clamping mechanism 12 within the cavity 11. A second light source 21 and an image acquisition unit 22 are also located to the left of the film clamping mechanism 12 within the cavity. The image acquisition unit 22 is positioned above the second light source 21. By setting the first light source 20 and the second light source 21, the film 9 to be inspected can be illuminated from different angles and positions, thereby improving the clarity and accuracy of image acquisition. In this embodiment, both the first light source 20 and the second light source are LED lights. The image acquisition unit 22 is a high-speed camera. A controller is also included. The image acquisition unit 22, the motor 13, the first light source 20, and the second light source 21 are all electrically connected to the controller. Thus, the camera collects image information of the film in real time and transmits the image information to the controller, which performs image processing and recognition. When the controller detects a defect in the film, it immediately triggers an alarm mechanism to alert the inspection personnel.

[0019] Support feet 103 are provided at the bottom of the testing box 10.

[0020] During operation, a piece of film 9, sized to fit the backing plate 121, is first cut from the roll of film. Then, the sealing door 15 is opened, and the film 9 to be inspected is placed into the cavity through the operating port 14 and clamped to the backing plate 121. The first light source 20 and the second light source 21 are then turned on. Next, the motor is started, driving the backing plate 121 to rotate with the film 9. Image information of the film is collected in real time by the camera 22 and transmitted to the controller for image processing and recognition. If the controller confirms that the film sample is defect-free after analysis, the next step is performed. If a defect is detected in the film, the controller immediately triggers an alarm mechanism to alert the inspectors.

[0021] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A thin film appearance inspection device, characterized in that, The device includes a detection box with an internal cavity, an opaque back plate disposed within the cavity for laying and fixing a film, and a drive mechanism connected to the back plate for driving the back plate to rotate. The back plate has clips at both ends for clamping the film. An operation port is provided on the detection box, and a sealing door for sealing the operation port is connected to the operation port. A first light source is provided above the back plate in the cavity, and a second light source and an image acquisition unit are provided on the left side of the back plate. The device also includes a controller, and the image acquisition unit, the rotation drive mechanism, the first light source, and the second light source are all electrically connected to the controller.

2. The film appearance inspection device according to claim 1, characterized in that, The back panel is made of black acrylic sheet.

3. The thin film appearance inspection device according to claim 1, characterized in that, The rotary drive mechanism is a motor, which is fixed on the inner wall of the rear panel of the detection box, and the back plate is connected to the output shaft of the motor.

4. The film appearance inspection device according to claim 1, characterized in that, The image acquisition unit uses a high-speed camera.

Images