Automatic detection equipment for photoelectric thin film

Abstract

The application discloses an automatic detection equipment for photoelectric films and relates to the technical field of photoelectric film detection.The automatic detection equipment comprises a detection box, a pressure cavity and a mounting cavity which are in communication with each other are arranged in the detection box, a booster device is arranged on one side of the pressure cavity, a fixing structure is arranged on one side of the mounting cavity, a detection opening is formed in the top of one end of the detection box, an adsorption structure is arranged on the side wall of the communication part of the pressure cavity and the mounting cavity, a mark structure is arranged in the pressure cavity, and an outlet corresponding to the detection opening is formed in the bottom of the mounting cavity.The fixing structure is used for bearing and placing the photoelectric film, and then the fixing structure is driven to rotate until the photoelectric film abuts against the end side of the pressure cavity, so that the photoelectric film keeps adhering to the pressing plate when being placed, the edge of the photoelectric film does not present a bending state, the photoelectric film does not bend when being extruded and fixed by the pressing plate, the photoelectric film is not damaged, and the accuracy of the detection result is ensured.

Description

Technical Field

[0001] This invention relates to the field of optoelectronic thin film testing technology, and more specifically to an automatic testing device for optoelectronic thin films. Background Technology

[0002] Optoelectronic display thin film devices mainly include optical films and adhesive tapes for optoelectronic displays. According to their uses, they can be further subdivided into adhesive products and insulating products. They are an indispensable component of LCD panels. After production, optoelectronic films need to be tested to see if they meet the standards for use.

[0003] A utility model patent with publication number CN220270496U discloses a photoelectric thin film detection device. Specifically, the photoelectric thin film to be detected is placed in a placement slot. Then, a pressure boosting device slides in the detection mounting box. During the sliding process, the pressure boosting device drives a marking device through a transmission device to fix the photoelectric thin film inside the placement slot, thus forming a sealed space with the detection mounting box, the photoelectric thin film, and the pressure boosting device. When the pressure boosting device slides, the pressure in the space increases. If the photoelectric thin film has a problem, it will break. If the photoelectric thin film is not problematic, the increased air pressure will drive the marking device through the transmission device to mark the photoelectric thin film. When the pressure boosting device resets, the marking device will prevent the photoelectric thin film discharge device from blocking the placement slot, and the detected photoelectric thin film will then fall out of the placement slot.

[0004] However, the existing technology still has the following problems: when the photoelectric film enters the test installation box through the placement channel, it will fall directly to the bottom of the test installation box, causing the photoelectric film to be in an inclined state. During the process of the moving ring squeezing and fixing the photoelectric film, the edge of the photoelectric film may be bent and deformed due to the mutual squeezing of the moving ring and the inner wall of the placement channel, thereby damaging the photoelectric film and affecting the test results. Summary of the Invention

[0005] The purpose of this invention is to provide an automatic inspection device for photoelectric thin films, which solves the technical problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: An automatic testing device for photoelectric thin films includes a testing chamber, which contains a pressure chamber and a mounting chamber that are interconnected. A pressurizing device for filling the pressure chamber with gas is provided on one side of the pressure chamber, and a fixing structure is provided on one side of the mounting chamber. A testing port communicating with the interior of the mounting chamber is opened at the top of one end of the testing chamber. The fixing structure is used to press and fix the photoelectric thin film onto the side wall of the connection between the pressure chamber and the mounting chamber. An adsorption structure is provided on the side wall of the connection between the pressure chamber and the mounting chamber. A marking structure is provided inside the pressure chamber. An outlet corresponding to the testing port is opened at the bottom of the mounting chamber. When the photoelectric thin film enters the testing port, the fixing structure moves above the outlet to support the photoelectric thin film. When the photoelectric thin film is placed into the detection box through the detection port, the fixing structure supports the photoelectric thin film in an inclined state. After the fixing structure supports the photoelectric thin film, it rotates to a vertical state and moves to abut against the end of the pressure chamber. After the photoelectric thin film is fixed, the photoelectric thin film and the pressure chamber form a closed space.

[0007] As a preferred embodiment of the present invention, the fixing structure includes a telescopic device disposed in the mounting cavity. The end of the telescopic device is rotatably connected to a rotating seat via a connecting plate. A pressure plate is slidably connected to the rotating seat. Rotary connecting parts are rotatably connected to both sides of the bottom of the pressure plate via torsion springs, and each of the rotary connecting parts is slidably connected to the inner wall of the mounting cavity. The bottom of the pressure plate has strip-shaped protrusions for supporting the photoelectric thin film.

[0008] As a preferred embodiment of the present invention, the pressure plate includes a plate body slidably connected to the rotating seat, a cylinder is provided at the bottom of the plate body, and the diameter of the cylinder is greater than the thickness of the plate body. The cylinder is placed horizontally and has the same width as the plate body. Two rotating connecting members are respectively provided at both ends of the cylinder.

[0009] As a preferred embodiment of the present invention, the two opposite sidewalls inside the mounting cavity are provided with sliding grooves that are slidably connected to the rotating connectors. A magnet is provided at one end of each sliding groove and on each rotating connector. When the photoelectric thin film is fixed, the rotating connector is attracted to the inner sidewall of the sliding groove by the magnet.

[0010] In a preferred embodiment of the present invention, the pressure plate is tilted when the deformation of the torsion spring is zero.

[0011] As a preferred embodiment of the present invention, a limiting groove is provided on one side of the pressure plate, and the rotating seat is slidably connected in the limiting groove. When the pressure plate is in an inclined state, the rotating seat abuts against the inner top of the limiting groove.

[0012] As a preferred embodiment of the present invention, the adsorption structure includes a first air pump, and a plurality of air holes are provided on the side wall at the connection between the pressure chamber and the mounting chamber, and the plurality of air holes are connected together to a pipeline connected to the first air pump.

[0013] As a preferred embodiment of the present invention, the marking structure includes a mounting bracket and a pushing device disposed in a pressure chamber. A storage cylinder is disposed on the mounting bracket, and a spray pipe is disposed on the side of the storage cylinder facing the fixed structure. A sliding seat is slidably and sealed inside the storage cylinder, and the sliding seat is connected to the movable end of the pushing device.

[0014] Compared with the prior art, the present invention has the following advantages: This invention uses an inclined fixed structure to support the placed photoelectric thin film, and then drives the fixed structure to rotate until the photoelectric thin film abuts against the end of the pressure chamber. This ensures that the photoelectric thin film remains in contact with the pressure plate during placement, preventing the edges of the photoelectric thin film from bending. As a result, the photoelectric thin film will not bend or deform when it is squeezed and fixed by the pressure plate, ensuring that the photoelectric thin film is not damaged and thus ensuring the accuracy of the detection results. Attached Figure Description

[0015] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] Figure 1 This invention provides a schematic diagram of the structure of an automatic inspection device for photoelectric thin films. Figure 2 A cross-sectional view of an automatic inspection device for photoelectric thin films provided by the present invention. Figure 1 ; Figure 3 A cross-sectional view of an automatic inspection device for photoelectric thin films provided by the present invention. Figure 2 ; Figure 4 A cross-sectional view of an automatic inspection device for photoelectric thin films provided by the present invention. Figure 3 ; Figure 5 A cross-sectional view of an automatic inspection device for photoelectric thin films provided by the present invention. Figure 4 ; Figure 6 A cross-sectional view of an automatic inspection device for photoelectric thin films provided by the present invention. Figure 5 .

[0017] The labels in the diagram represent the following: 1. Detection chamber; 2. Pressure chamber; 3. Mounting chamber; 4. Pressurization device; 5. Fixing structure; 6. Detection port; 7. Adsorption structure; 8. Marking structure; 9. Outlet; 501. Telescopic device; 502. Rotating seat; 503. Pressure plate; 504. Rotating connector; 505. Plate; 506. Cylinder; 507. Slide groove; 508. Limiting groove; 701. First air pump; 702. Air hole; 801. Mounting bracket; 802. Storage cylinder; 803. Injection pipe; 804. Slide seat; 805. Pushing device. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] like Figures 1 to 6 As shown, the present invention provides an automatic testing device for photoelectric thin films, including a testing box 1. The testing box 1 is provided with a pressure chamber 2 and a mounting chamber 3 that are interconnected. A pressurizing device 4 for filling the pressure chamber 2 with gas is provided on one side of the pressure chamber 2. A fixing structure 5 is provided on one side of the mounting chamber 3. A testing port 6 communicating with the inside of the mounting chamber 3 is opened at the top of one end of the testing box 1. The fixing structure 5 is used to squeeze and fix the photoelectric thin film to the side wall at the connection between the pressure chamber 2 and the mounting chamber 3. An adsorption structure 7 is provided on the side wall at the connection between the pressure chamber 2 and the mounting chamber 3. A marking structure 8 is provided in the pressure chamber 2. An outlet 9 corresponding to the testing port 6 is opened at the bottom of the mounting chamber 3. When the photoelectric thin film enters the testing port 6, the fixing structure 5 moves to the top of the outlet 9 to support the photoelectric thin film. When the photoelectric film is placed into the detection box 1 through the detection port 6, the fixing structure 5 is tilted to support the photoelectric film. After the fixing structure 5 supports the photoelectric film, it rotates to a vertical position and moves to abut against the end of the pressure chamber 2. After the photoelectric film is fixed, the photoelectric film and the pressure chamber 2 form a closed space.

[0021] The fixed structure 5 includes a telescopic device 501 installed in the mounting cavity 3. The end of the telescopic device 501 is rotatably connected to a rotating seat 502 via a connecting plate. A pressure plate 503 is slidably connected to the rotating seat 502. Rotary connecting parts 504 are rotatably connected to both sides of the bottom of the pressure plate 503 via torsion springs. Each rotary connecting part 504 is slidably connected to the inner wall of the mounting cavity 3. The bottom of the pressure plate 503 has strip-shaped protrusions for supporting the photoelectric thin film.

[0022] When this application is in use, the photoelectric film is placed into the detection box 1 through the detection port 6 and falls onto the fixed structure 5. At this time, the part of the fixed structure 5 used to support the photoelectric film is in an inclined state, that is, the pressure plate 503 is in an inclined state. The photoelectric film is placed flat on the surface of the pressure plate 503, and the bottom of the photoelectric film abuts against the strip-shaped protrusion at the bottom of the pressure plate 503. The strip-shaped protrusion restricts the photoelectric film from sliding off the pressure plate 503.

[0023] Subsequently, the telescopic device 501 extends to drive the rotating seat 502 to rotate the pressure plate 503 around the rotating connector 504 until the pressure plate 503 is in a vertical state and abuts against the connection between the mounting cavity 3 and the pressure cavity 2. In this embodiment, the size of the mounting cavity 3 is larger than the size of the pressure cavity 2. The connection between the mounting cavity 3 and the pressure cavity 2 is the end side of the pressure cavity 2. Therefore, after the pressure plate 503 rotates to a vertical state, the photoelectric film abuts against the end side of the pressure cavity 2, so that the pressure cavity 2 and the photoelectric film together form a closed space.

[0024] Subsequently, the pressurizing device 4 fills the pressure chamber 2 with gas, causing the air pressure in the pressure chamber 2 to rise. If the photoelectric film is intact, the air pressure in the pressure chamber 2 will continue to rise to the preset pressure within a predetermined time (by obtaining pressure information by setting a pressure sensor in the pressure chamber 2). At this time, the marking structure 8 marks the photoelectric film, and the pressurizing device 4 stops working.

[0025] After marking is completed, the adsorption structure 7 fixes the photoelectric film by adsorbing it under negative pressure. The telescopic device 501 shortens, and the pressure plate 503 rotates first under the drive of the telescopic device 501 and the elastic force of the torsion spring. The rotating seat 502 slides on the pressure plate 503. Then the pressure plate 503 tilts away from the pressure chamber 2. Due to the fixation of the adsorption structure 7, the photoelectric film does not stick to the pressure plate 503 and move synchronously under the action of the air pressure in the pressure chamber 2. When the pressure plate 503 disengages from the end of the pressure chamber 2, under the action of the air pressure in the pressure chamber 2, part of the edge of the photoelectric film will lift up, but it will not detach from the end of the pressure chamber 2, so that the air pressure in the pressure chamber 2 returns to normal.

[0026] When the pressure plate 503 moves away from the pressure chamber 2, the adsorption structure 7 stops working, the negative pressure adsorption effect disappears, causing the photoelectric film to detach from the end of the pressure chamber 2 and fall out of the outlet 9 into the detection box 1, thus completing the detection of the photoelectric film.

[0027] If the photoelectric thin film is damaged, the air pressure in the pressure chamber 2 will not rise to the preset pressure within a predetermined time. At this time, no marking will be made, and then the photoelectric thin film will be released from the outlet 9 according to the action process after the marking is completed.

[0028] The photoelectric film is tested by tilting the pressure plate 503 to support it, which allows the photoelectric film to adhere to the surface of the pressure plate 503. This avoids the photoelectric film being tilted and bent when placed, thus preventing the problem of bending deformation at the edge of the photoelectric film when it is squeezed and fixed to the end of the pressure chamber 2, and ensuring the accuracy of the test results.

[0029] In this embodiment, the telescopic device 501 is existing technology, such as an electric push rod or a hydraulic push rod, and the rotating connector 504 is also existing technology, such as a sliding seat and a rotating shaft rotatably mounted on the sliding seat. The pressurizing device 4 is also existing technology, such as an air pump and a pressurizing pipe. The air pump fills the pressure chamber 2 with gas through the pressurizing pipe. The technical principles will not be elaborated in detail here.

[0030] The pressure plate 503 includes a plate body 505 that is slidably connected to the rotating seat 502. A cylinder 506 is provided at the bottom of the plate body 505, and the diameter of the cylinder 506 is greater than the thickness of the plate body 505. The cylinder 506 is placed horizontally and has the same width as the plate body 505. Two rotating connecting parts 504 are respectively provided at both ends of the cylinder 506.

[0031] The cylinder 506 is a strip-shaped protrusion. The plate 505 is used to support and compress the photoelectric film. The cylinder 506 is used to prevent the photoelectric film from slipping out of the plate 505 during placement.

[0032] The two opposite side walls inside the mounting cavity 3 are provided with sliding grooves 507 that are slidably connected to the rotating connector 504. A magnet is provided at one end of each sliding groove 507 and on each rotating connector 504. When the photoelectric film is fixed, the rotating connector 504 is attracted to the inner side wall of the sliding groove 507 by the magnet.

[0033] The groove 507 is used to install the rotating connector 504 and to restrict the movement trajectory of the rotating connector 504.

[0034] Magnets (not shown in the figure) are used to restrict the rotation of the connecting member 504, so that as the pressure plate 503 moves away from the pressure chamber 2, the plate 505 is pulled by the telescopic device 501 and rotates first due to the elastic force of the torsion spring and the magnetic force of the two magnets, and then drives the cylinder 506 to move, so that the plate 505 is tilted to carry out the next load-bearing action.

[0035] When the deformation of the torsion spring is zero, the pressure plate 503 is tilted.

[0036] The pressure plate 503 is tilted when it is not subjected to external force due to the elastic force of the torsion spring, so that the pressure plate 503 can maintain the tilted state when it is pushed and pulled by the telescopic device 501.

[0037] A limiting groove 508 is provided on one side of the pressure plate 503, and the rotating seat 502 is slidably connected in the limiting groove 508. When the pressure plate 503 is in an inclined state, the rotating seat 502 abuts against the inner top of the limiting groove 508.

[0038] The sliding range of the rotating seat 502 is limited by the limiting groove 508, thereby limiting the maximum rotation angle of the pressure plate 503.

[0039] The adsorption structure 7 includes a first air pump 701, and multiple air holes 702 are provided on the side wall at the connection between the pressure chamber 2 and the mounting chamber 3. The multiple air holes 702 are connected to a pipeline connected to the first air pump 701.

[0040] Air is drawn from multiple pores 702 by the first air pump 701 to fix the photoelectric thin film by negative pressure adsorption.

[0041] The vent 702 is connected to the outside of the detection box 1 so that after the first air pump 701 stops working, external air enters the vent 702 to release the negative pressure adsorption effect on the photoelectric thin film.

[0042] The marking structure 8 includes a mounting bracket 801 and a pushing device 805 disposed in the pressure chamber 2. A storage cylinder 802 is disposed on the mounting bracket 801. A spray pipe 803 is disposed on the side of the storage cylinder 802 facing the fixed structure 5. A sliding seat 804 is slidably and sealed inside the storage cylinder 802, and the sliding seat 804 is connected to the movable end of the pushing device 805.

[0043] The pusher 805 pushes the slide 804 to squeeze the marker in the storage cylinder 802, so that the marker is sprayed from the spray pipe 803 onto the photoelectric film to complete the marking.

[0044] In this embodiment, the pushing device 805 is existing technology, such as a hydraulic push rod or an electric push rod, and the technical principle will not be elaborated in detail here.

[0045] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention. This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. An automatic inspection device for photoelectric thin films, characterized in that, The device includes a testing box (1), which has a pressure chamber (2) and an installation chamber (3) that are interconnected. A pressurizing device (4) for filling the pressure chamber (2) with gas is provided on one side of the pressure chamber (2). A fixing structure (5) is provided on one side of the installation chamber (3). A testing port (6) communicating with the inside of the installation chamber (3) is opened at the top of one end of the testing box (1). The fixing structure (5) is used to press and fix the photoelectric film to the side wall at the connection between the pressure chamber (2) and the installation chamber (3). An adsorption structure (7) is provided on the side wall at the connection between the pressure chamber (2) and the installation chamber (3). A marking structure (8) is provided in the pressure chamber (2). An outlet (9) corresponding to the testing port (6) is opened at the bottom of the installation chamber (3). When the photoelectric film enters the testing port (6), the fixing structure (5) moves to the top of the outlet (9) to support the photoelectric film. When the photoelectric film is placed into the detection box (1) through the detection port (6), the fixing structure (5) is tilted to support the photoelectric film. After the photoelectric film is rotated, the fixing structure (5) rotates to a vertical state and moves to abut against the end of the pressure chamber (2). After the photoelectric film is fixed, the photoelectric film and the pressure chamber (2) form a closed space.

2. The automatic inspection device for photoelectric thin films according to claim 1, characterized in that, The fixed structure (5) includes a telescopic device (501) disposed in the mounting cavity (3). The end of the telescopic device (501) is rotatably connected to a rotating seat (502) via a connecting plate. A pressure plate (503) is slidably connected to the rotating seat (502). Rotary connecting parts (504) are rotatably connected to both sides of the bottom of the pressure plate (503) via torsion springs. Each of the rotary connecting parts (504) is slidably connected to the inner wall of the mounting cavity (3). The bottom of the pressure plate (503) has strip-shaped protrusions for supporting the photoelectric thin film.

3. The automatic inspection device for photoelectric thin films according to claim 2, characterized in that, The pressure plate (503) includes a plate body (505) that is slidably connected to the rotating seat (502). A cylinder (506) is provided at the bottom of the plate body (505), and the diameter of the cylinder (506) is greater than the thickness of the plate body (505). The cylinder (506) is placed horizontally and has the same width as the plate body (505). Two rotating connectors (504) are respectively provided at both ends of the cylinder (506).

4. The automatic inspection device for photoelectric thin films according to claim 2, characterized in that, The mounting cavity (3) has two opposite sidewalls with sliding grooves (507) that are slidably connected to the rotating connector (504). Each of the sliding grooves (507) and each rotating connector (504) is provided with a magnet. When the photoelectric film is fixed, the rotating connector (504) is attracted to the inner sidewall of the sliding groove (507) by the magnet.

5. The automatic inspection device for photoelectric thin films according to claim 2, characterized in that, When the deformation of the torsion spring is zero, the pressure plate (503) is tilted.

6. The automatic inspection device for photoelectric thin films according to claim 2, characterized in that, A limiting groove (508) is provided on one side of the pressure plate (503), and the rotating seat (502) is slidably connected in the limiting groove (508). When the pressure plate (503) is in an inclined state, the rotating seat (502) abuts against the inner top of the limiting groove (508).

7. The automatic inspection device for photoelectric thin films according to claim 1, characterized in that, The adsorption structure (7) includes a first air pump (701), and a plurality of air holes (702) are provided on the side wall at the connection between the pressure chamber (2) and the mounting chamber (3). The plurality of air holes (702) are connected together to a pipeline connected to the first air pump (701).

8. The automatic inspection device for photoelectric thin films according to claim 1, characterized in that, The marking structure (8) includes a mounting bracket (801) and a pushing device (805) disposed in the pressure chamber (2). A storage cylinder (802) is disposed on the mounting bracket (801). A spray pipe (803) is disposed on the side of the storage cylinder (802) facing the fixed structure (5). A sliding seat (804) is slidably and sealed inside the storage cylinder (802), and the sliding seat (804) is connected to the movable end of the pushing device (805).

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