Polaroid bubble detection device

Abstract

The utility model relates to the technical field of polaroid bubble detection, in particular to a polaroid bubble detection device which comprises a detection box, a detection camera is fixedly connected to the inner top wall of the detection box, a plurality of illuminating lamps are fixedly connected to the side, close to the detection camera, of the detection box, and a transmission plate is slidably connected to the position under the detection box. According to the polaroid detection device, the transmission plate stably conveys polaroids at a constant speed, it is ensured that detection is continuous and uninterrupted, the brass strips and the steel strips sensitively sense changes of temperature and humidity in the detection box, and therefore the polaroids can be accurately detected, the detection accuracy is improved, and the detection efficiency is improved. When the humidity is larger than 65% RH, the brass layer absorbs moisture and expands to trigger the dehumidifier, and when the humidity is smaller than 45% RH, the stainless steel layer shrinks to trigger the humidifier. And the fan continuously operates to enhance air flow, so that the humidity is quickly adjusted and uniformly distributed, the temperature difference and the humidity difference in the detection box are kept in a relatively small range, and the accuracy and the reliability of a detection result are kept.

Description

Technical Field

[0001] This utility model relates to a bubble detection device, and more particularly to a polarizer bubble detection device, belonging to the field of polarizer bubble detection technology. Background Technology

[0002] In modern electronic display technology, polarizers are a key component, and their quality plays a decisive role in display effects and product performance. However, during the production of polarizers, due to the inherent characteristics of the materials and complex manufacturing processes, defects such as bubbles are highly likely to occur. These bubble defects not only significantly affect the optical performance of the polarizer but may also cause serious problems in display devices, such as image distortion, uneven brightness, and color deviation, greatly reducing the quality of display products and the user experience.

[0003] To ensure the quality of polarizers and meet the growing market demand for high-quality display products, rigorous testing of polarizers is essential to eliminate substandard products. However, during the testing process, temperature and humidity differences can severely interfere with the results, leading to deviations or even errors. For example, excessively high or low temperatures may reduce the accuracy of the testing equipment; high humidity can cause water vapor to form on the polarizer surface, affecting the observation and judgment of bubbles; and excessively low humidity may generate static electricity, interfering with the detection signal. These factors can all compromise the accuracy and reliability of the test results, making it impossible to effectively screen out qualified polarizer products.

[0004] Therefore, there is an urgent need to improve a polarizer bubble detection device to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a polarizer bubble detection device. The transmission plate smoothly and uniformly transports the polarizer, ensuring a continuous and uninterrupted detection process. Brass and steel strips sensitively sense changes in temperature and humidity within the detection chamber. When the humidity is >65% RH, the brass layer expands significantly due to moisture absorption, precisely triggering the dehumidifier to quickly activate and reduce humidity. When the humidity is <45% RH, the stainless steel layer contracts significantly, precisely triggering the humidifier to start operating and increase humidity. Simultaneously, the fan continuously operates, enhancing airflow within the detection chamber. This not only facilitates faster humidity adjustment but also ensures more uniform humidity distribution, creating a stable humidity environment for detection. The illumination lamp continuously provides bright, sufficient, and uniform lighting for the detection camera, ensuring the camera can clearly and accurately acquire images of the polarizer, thus achieving accurate and reliable detection and greatly reducing the possibility of misjudgment.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] A device for detecting bubbles in a polarizing film includes a detection chamber. A detection camera is fixedly connected to the inner top wall of the detection chamber. Multiple illumination lamps are fixedly connected to the side of the detection chamber near the detection camera. A transmission plate is slidably connected to the bottom of the detection chamber. Guide plates are fixedly connected to both inner walls of the detection chamber. Multiple brass strips and steel strips are fixedly connected to the side of the guide plates away from the inner wall of the detection chamber. The multiple brass strips and multiple steel strips correspond one-to-one. The brass strips are located on one side of the steel strips and are fixedly fixed to the steel strips. A humidifier and a dehumidifier are fixedly connected to the inner walls of both sides of the detection chamber, respectively.

[0008] Preferably, a fan is fixedly connected to the inner wall of the detection box near the guide plate, and the outlet end of the fan is aligned with the guide plate.

[0009] Preferably, the guide plate has spiral grooves between the two brass strips.

[0010] Preferably, an electric telescopic rod is fixedly connected to the upper surface of the detection box, a movable plate is connected to the output end of the electric telescopic rod, a drive motor is fixedly connected to one side of the movable plate, and a brush is connected to the output end of the drive motor, the brush corresponding to the polarizer.

[0011] Preferably, the brush is made of carbon fiber, and the brush contacts the polarizer to eliminate static electricity on the surface of the polarizer.

[0012] Preferably, brackets are fixedly connected to the bottom surfaces of both ends of the transmission plate, a support platform is provided below the brackets, multiple support springs are provided between the support platform and the brackets, a vibrator is provided directly below the brackets, and the output end of the vibrator is fixedly connected to the brackets.

[0013] Preferably, the testing box has multiple drain ports on its inner bottom surface near the support.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. The transmission plate smoothly and at a constant speed transports the polarizer, ensuring a continuous and uninterrupted testing process. The brass and steel strips sensitively detect changes in temperature and humidity within the testing chamber. When the humidity exceeds 65% RH, the brass layer expands significantly due to moisture absorption, precisely triggering the dehumidifier to quickly activate and reduce humidity. When the humidity is below 45% RH, the stainless steel layer contracts noticeably, precisely triggering the humidifier to start operating and increase humidity. Simultaneously, the fan continuously operates, enhancing airflow within the testing chamber. This not only facilitates faster humidity adjustment but also ensures more uniform humidity distribution, creating a stable humidity environment for testing. The illumination lamp continuously provides bright, sufficient, and uniform lighting for the testing camera, ensuring the camera can clearly and accurately acquire images of the polarizer, thus achieving accurate and reliable testing and significantly reducing the possibility of misjudgment.

[0016] 2. The telescopic movement of the electric telescopic rod causes the moving plate to move up and down. The movement of the moving plate causes the drive motor and brush fixed on it to move accordingly. When the polarizer needs to be processed, the electric telescopic rod extends, bringing the brush close to the polarizer. The drive motor starts and drives the brush to rotate, realizing the cleaning and static removal of the polarizer. The surface of the polarizer is clean after cleaning, and the static electricity is eliminated, which helps the detection camera to detect defects such as bubbles more accurately and improves the reliability of the detection results. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 A three-dimensional structural schematic diagram provided for this utility model;

[0019] Figure 2 Cross-sectional schematic diagram provided for this utility model Figure 1 ;

[0020] Figure 3 This is a partial enlarged schematic diagram of the structure provided by this utility model;

[0021] Figure 4 Cross-sectional schematic diagram provided for this utility model Figure 2 .

[0022] In the diagram, 1. Detection box; 2. Detection camera; 3. Illuminator; 4. Transmission plate; 5. Guide plate; 6. Brass strip; 7. Steel strip; 8. Humidifier; 9. Dehumidifier; 21. Fan; 31. Spiral groove; 41. Electric telescopic rod; 42. Moving plate; 43. Drive motor; 44. Brush; 61. Bracket; 62. Support platform; 63. Support spring; 64. Vibrator; 71. Drain outlet. Detailed Implementation

[0023] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0024] like Figure 1 - Figure 4 As shown, this embodiment provides a polarizer bubble detection device, including a detection box 1. The detection box 1 provides a closed detection space to protect internal components, reduce external interference, and ensure the accuracy and stability of the detection. A detection camera 2 is fixedly connected to the inner top wall of the detection box 1. The detection camera 2 is used to acquire images of the object being detected and is the core component for realizing the detection function. Multiple illumination lamps 3 are fixedly connected to the side of the detection box 1 near the detection camera 2. The illumination lamps 3 provide sufficient and uniform light to ensure that the detection camera 2 can clearly capture or detect the object being detected. A transmission plate 4 is slidably connected to the bottom of the detection box 1. The transmission plate 4 can carry the object being detected and achieve smooth transmission, allowing the detection process to proceed continuously. Deflector plates 5 are fixedly connected to both inner walls of the detection box 1. The deflector plates 5 guide the airflow direction and help maintain the detection box 1. The internal temperature and humidity are monitored by multiple brass strips 6 and steel strips 7 fixedly connected to the side of the baffle plate 5 away from the inner wall of the detection chamber 1. Each brass strip 6 corresponds to a steel strip 7, and the brass strips 6 are located on one side of the steel strips 7, secured by rivets. Due to the different coefficients of thermal expansion of brass and steel, the brass strips 6 and 7 will bend or deform under varying temperatures and humidity levels, thus sensing environmental changes and triggering corresponding adjustments. Humidifiers 8 and dehumidifiers 9 are fixedly connected to the inner walls of both sides of the detection chamber 1, respectively. The humidifier 8 increases the air humidity when the humidity inside the detection chamber 1 is low to meet the required humidity conditions for detection, preventing inaccurate test results due to dryness. The dehumidifier 9 reduces the air humidity when the humidity inside the detection chamber 1 is too high, ensuring the detection environment is within a suitable humidity range and improving the accuracy and reliability of the detection.

[0025] Among them, such as Figure 1 - Figure 4As shown, a fan 21 is fixedly connected to the inner wall of the test chamber 1 near the guide plate 5. The outlet end of the fan 21 is aligned with the guide plate 5. The fan 21 rotates to generate airflow, and its outlet end is aligned with the guide plate 5, which can enhance the airflow in the test chamber 1, promote air circulation, and make the temperature and humidity distribution in the test chamber 1 more uniform, avoiding large local temperature or humidity differences, thereby ensuring the stability of the test environment. The guide plate 5 has spiral grooves 31 between the two brass strips 6. The spiral grooves 31 guide the airflow, so that the airflow generated by the fan 21 flows along a specific spiral path, enhancing the airflow's guidance and stability, increasing the heat exchange area, and helping to exchange heat more effectively with the surrounding environment when the airflow passes through, thereby better regulating the temperature inside the test chamber 1.

[0026] Among them, such as Figure 1 - Figure 4 As shown, an electric telescopic rod 41 is fixedly connected to the upper surface of the testing box 1. A movable plate 42 is connected to the output end of the electric telescopic rod 41, enabling the movable plate 42 to extend and retract vertically. A drive motor 43 is fixedly connected to one side of the movable plate 42, and a brush 44 is connected to the output end of the drive motor 43. The movable plate 42 provides a mounting base for the drive motor 43 and, along with the movement of the electric telescopic rod 41, drives the drive motor 43 and the brush 44 to move together. The brush 44 corresponds to the polarizer and contacts the polarizer to clean and remove impurities. The soft material of the brush can... Without damaging the polarizer, the required processing tasks are completed, ensuring the surface quality and accuracy of the polarizer. The brush 44 is made of carbon fiber. By contacting the polarizer, the brush 44 eliminates static electricity on the surface of the polarizer. The carbon fiber has good conductivity and can quickly conduct away the static charge on the surface of the polarizer, thereby achieving the effect of eliminating static electricity. In addition, the carbon fiber is soft and wear-resistant, and will not scratch or damage the surface of the polarizer when in contact with it. It can also withstand multiple uses while maintaining its performance.

[0027] Among them, such as Figure 1 - Figure 4As shown, brackets 61 are fixedly connected to the bottom surfaces of both ends of the transmission plate 4. The brackets 61 provide a support and fixation structure for the transmission plate 4, and drive the transmission plate 4 to move. A support platform 62 is provided below the brackets 61. The support platform 62 provides a stable plane to bear the weight of the entire transmission system. Multiple support springs 63 are provided between the support platform 62 and the brackets 61. The support springs 63 allow the transmission plate 4 and the brackets 61 to move slightly back and forth on the support platform 62, causing the polarizer on the transmission plate 4 to move. A vibrator 64 is provided directly below the brackets 61. The output end of the vibrator 64 is fixedly connected to the brackets 61. The vibrator 64 generates vibration, causing the transmission plate 4 to vibrate, achieving the purpose of material conveying. At the same time, the vibration causes impurities or attachments on the surface of the material to fall off, achieving the effect of removing impurities and attachments. Multiple drain ports 71 are opened on the inner bottom surface of the detection box 1 near the brackets 61. The drain ports 71 are used to discharge dirt, impurities and other pollutants accumulated in the detection box 1.

[0028] like Figure 1 - Figure 4 As shown, the principle of the polarizer bubble detection device provided in this embodiment is as follows: When the polarizer to be tested moves onto the transmission plate 4, the vibrator 64 causes the transmission plate 4 to vibrate, promoting the movement of the polarizer. The electric telescopic rod 41 drives the moving plate 42 and the brush 44 to descend, so that the brush 44 contacts the polarizer. The drive motor 43 drives the brush 44 to rotate, cleaning the polarizer and removing impurities. At the same time, the carbon fiber brush 44 eliminates static electricity on the surface of the polarizer. Meanwhile, the vibration of the transmission plate 4 removes impurities and dust from the polarizer. The dust falls from the transmission plate 4 into the detection chamber 1 and is finally discharged through the drain port 71. The fan 21 generates airflow, which passes through the spiral groove 31 on the guide plate 5, making the temperature and humidity distribution in the detection chamber 1 more uniform. The brass strip 6 and the steel strip 7 sense the temperature and humidity changes in the detection chamber 1. When the humidity is >65% RH, the brass layer absorbs moisture and expands, triggering the dehumidifier 9 to work; when the humidity is <45% RH... When the stainless steel layer contracts, it triggers the humidifier 8 to work, maintaining the temperature and humidity balance inside the detection chamber 1. Then, under sufficient and uniform lighting, the detection camera 2 acquires the image of the polarizer to perform bubble detection.

[0029] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0030] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0031] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A polarizing sheet bubble detecting apparatus comprising a detection tank (1), characterized by: The inner top wall of the detection box (1) is fixedly connected with a detection camera (2), a plurality of light lamps (3) are fixedly connected to the side of the detection box (1) close to the detection camera (2), a transmission plate (4) is slidably connected to the lower side of the detection box (1), guide plates (5) are fixedly connected to the inner walls of the two sides of the detection box (1), a plurality of brass bars (6) and steel bars (7) are fixedly connected to the side of the guide plates (5) away from the inner walls of the detection box (1), the plurality of brass bars (6) and the plurality of steel bars (7) are one-to-one corresponding, the brass bars (6) are fixed to the steel bars (7) by rivets, and the brass bars (6) are located on one side of the steel bars (7), humidifiers (8) and dehumidifiers (9) are fixedly connected to the inner walls of the two sides of the detection box (1), respectively.

2. The polarizing plate bubble detection device according to claim 1, wherein: The inner wall of the side of the detection box (1) close to the guide plate (5) is fixedly connected with a fan (21), and the outlet end of the fan (21) is aligned with the guide plate (5).

3. The polarizer bubble detection apparatus according to claim 1, wherein: The guide plate (5) is provided with a spiral groove (31) between the two brass bars (6).

4. The polarizer bubble detection apparatus according to claim 1, wherein: The upper surface of the detection box (1) is fixedly connected with an electric telescopic rod (41), the output end of the electric telescopic rod (41) is connected with a moving plate (42), one side of the moving plate (42) is fixedly connected with a driving motor (43), the output end of the driving motor (43) is connected with a brush (44), and the brush (44) corresponds to a polaroid.

5. The polarizer bubble detection apparatus according to claim 4, wherein: The material of the brush (44) is carbon fiber, and the brush (44) is in contact with the polaroid to eliminate static electricity on the surface of the polaroid.

6. The polarizer bubble detection apparatus according to claim 1, wherein: The lower bottom surface of the transmission plate (4) is fixedly connected with a support (61), a support table (62) is arranged below the support (61), a plurality of support springs (63) are arranged between the support table (62) and the support (61), a vibrator (64) is arranged below the support (61), and the output end of the vibrator (64) is fixedly connected with the support (61).

7. The polarizer bubble detection apparatus according to claim 6, wherein: A plurality of blowdown openings (71) are formed in the inner bottom surface of the detection box (1) close to the support (61).

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