Detection device for crystal film screen production

Abstract

The invention discloses a detection device for crystal film screen production, and relates to the technical field of crystal film screen detection.The detection device comprises a machine table, a rack is fixed to the upper portion of the rear side of the machine table, an X-axis sliding assembly extending in the horizontal direction is arranged on the front wall of the rack, and an X-axis sliding plate is slidably connected to the X-axis sliding assembly; a Y-axis sliding assembly extending in the vertical direction is arranged on the front wall of the X-axis sliding plate, a Y-axis sliding plate is connected to the Y-axis sliding assembly in a sliding mode, a rotating assembly is arranged on the front side of the Y-axis sliding plate, a CCD detection camera is installed below the rotating assembly, and a turnover assembly is arranged between the first detection table and the support and between the second detection table and the support. And an image acquisition display screen is arranged on one side above the machine table. The first detection table and the second detection table are overturned by 0-180 degrees around the vertical base pin shaft, switching of the front face and the back face of the crystal film screen can be completed without manual intervention, and in cooperation with position adjustment of the CCD detection camera, defect detection of the two faces of the same crystal film screen can be completed at a time.

Description

Technical Field

[0001] This invention relates to the field of crystal film screen testing technology, and specifically to a testing device for crystal film screen production. Background Technology

[0002] A crystal film screen (LED crystal film screen) is a flexible transparent display device based on LED technology and thin-film transistor (TFT) technology. During the production process, crystal film screens undergo multiple complex and precise processes, which may damage the screen, resulting in problems such as bright spots, dark spots, and abnormal lines. These issues can affect the display effect of the crystal film screen and thus reduce the visual quality of the product. Therefore, it is necessary to inspect the crystal film screens of finished products to detect these potential quality problems in a timely manner. By screening out defective products, it is ensured that the products entering the market meet high-quality standards.

[0003] Existing crystal screens mainly rely on manual inspection. Inspectors visually inspect the surface of the crystal screen to check for obvious defects, such as detached LEDs, broken circuits, and surface scratches.

[0004] However, this inspection method has many drawbacks. On the one hand, manual inspection is inefficient and cannot meet the needs of large-scale production. Furthermore, prolonged visual inspection can easily lead to operator fatigue, thereby reducing the accuracy of the inspection and increasing the probability of missed or false detections. In addition, manual inspection cannot perform comprehensive inspection of the crystal screen. On the other hand, manual inspection requires operating the crystal screen one by one, and the loading and unloading process cannot be synchronized with the inspection process, which further restricts the improvement of inspection efficiency and makes it difficult to match the pace of large-scale production of crystal screens. Moreover, as a flexible transparent device, the crystal screen may have production defects on both its front and back sides. Manual flipping inspection not only increases the number of operation steps and extends the inspection cycle, but may also cause secondary damage to the crystal screen due to improper operation during the flipping process.

[0005] Therefore, it is necessary to invent a testing device for the production of crystal film screens to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a testing device for the production of crystal screens, in order to solve the problems of low efficiency of manual testing, inability to fully test crystal screens, inability to synchronize loading and unloading with the testing process, and manual flipping testing which not only increases the number of operation steps and prolongs the testing cycle, but may also cause secondary damage to the crystal screen due to improper operation during the flipping process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a testing device for the production of crystal film screens, comprising a machine base, a frame fixed above the rear side of the machine base, an X-axis sliding assembly extending horizontally on the front wall of the frame, an X-axis sliding plate slidably connected to the X-axis sliding assembly, a Y-axis sliding assembly extending vertically on the front wall of the X-axis sliding plate, a Y-axis sliding plate slidably connected to the Y-axis sliding assembly, a rotating assembly on the front side of the Y-axis sliding plate, a CCD inspection camera mounted below the rotating assembly, a support frame inside the machine base, a first inspection platform and a second inspection platform respectively on the left and right sides above the support frame, a flipping assembly between the first inspection platform, the second inspection platform and the support frame, and an image acquisition display screen on one side above the machine base.

[0008] Preferably, both the X-axis sliding assembly and the Y-axis sliding assembly include a slide rail, a slider, a drive motor, and a lead screw. The slider is threadedly connected to the lead screw and slides in cooperation with the slide rail. The X-axis slide plate and the Y-axis slide plate are respectively fixed on the corresponding slider. By controlling the drive motors of the X-axis sliding assembly and the Y-axis sliding assembly respectively, the X-axis slide plate and the Y-axis slide plate can drive the CCD inspection camera to move flexibly in the horizontal and vertical directions, thereby covering the entire crystal screen area on the inspection stage and realizing comprehensive scanning inspection of the crystal screen.

[0009] Preferably, the rotating assembly includes a rotary motor fixed to the front wall of the Y-axis slide plate. The output end of the rotary motor is connected to a horizontally arranged rotating shaft. Both ends of the rotating shaft are rotatably supported on the front wall of the Y-axis slide plate via bearing seats. A connecting piece is fixed in the middle of the rotating shaft. A pivot pin is hinged on the connecting piece. A connecting rod is connected below the pivot pin. The rotary motor provides power for adjusting the angle of the CCD detection camera. The connecting piece fixed in the middle of the rotating shaft plays the role of transmitting rotational power. The pivot pin hinged on the connecting piece and the connecting rod connected below the pivot pin form a transmission structure that can convert the rotational motion of the rotating shaft into a motion form suitable for adjusting the camera angle, thus providing conditions for subsequently driving the collar and camera to rotate.

[0010] Preferably, the rotating assembly further includes a collar, which is fitted onto the CCD inspection camera. The collar is rotatably connected to a side plate via a horizontal axis on both sides. The side plate is fixed to the front wall of the Y-axis slide plate. This design allows the CCD inspection camera to rotate around the horizontal axis within a certain angle range. Through the overall movement of the rotating assembly, the shooting angle of the CCD inspection camera can be adjusted to inspect the crystal screen from different angles, obtain more comprehensive information about the crystal screen, and improve the accuracy of the inspection.

[0011] Preferably, the bracket includes a stand at the top and two stops at the bottom. The top of the stand is provided with a hinged seat adapted to the first and second testing platforms. The two stops are located directly below the first and second testing platforms, respectively, to limit the flipping angle of the testing platforms. When the flipping assembly drives the testing platforms to flip, the stops can ensure that the testing platforms are accurately flipped to the preset testing position (such as 180°), avoiding over- or under-flipping of the testing platforms.

[0012] Preferably, the first and second testing platforms are hinged to the top of the stand by pins, which can achieve 0-180° rotation. This design meets the requirements of flip testing of the crystal screen and facilitates comprehensive testing of both sides of the crystal screen.

[0013] Preferably, the flipping assembly includes a servo motor fixed on a bracket, the output end of the servo motor is connected to a rotating wheel, and a protruding rod one and a protruding rod two are respectively provided on the non-center part of the disc on both sides of the rotating wheel, and the servo motor provides power for the flipping of the detection table.

[0014] Preferably, the first protrusion is hinged to the first crank, and the end of the first crank is hinged to the bottom of the first testing platform through a connecting seat. The first protrusion and the second protrusion, as well as the first crank and the second crank hinged thereto, form a crank-connecting rod mechanism. Through the transmission of the crank-connecting rod mechanism, the first testing platform and the second testing platform can be flipped synchronously to realize the flipping operation of the crystal screen.

[0015] Preferably, the second protruding rod is hinged to the second crank, and the end of the second crank is hinged to the bottom of the second testing table via a connecting arm, which enables the testing table to be flipped.

[0016] Preferably, the image acquisition display screen is connected to the CCD inspection camera signal, which can display the inspection image in real time and mark the defect location. The operator can intuitively observe the crystal screen image acquired by the CCD inspection camera through the display screen, promptly detect defects on the surface of the crystal screen, and have a clear understanding of the location, size and other information of the defects.

[0017] The technical effects and advantages provided by the present invention in the above technical solution are as follows: 1. This invention utilizes the synergistic effect of the X-axis sliding component and the Y-axis sliding component to drive the CCD inspection camera to achieve precise horizontal and vertical displacement. Combined with the drive of the rotating component, the rotating motor drives the CCD inspection camera to rotate around the horizontal axis of the side plate through the rotating shaft, connecting parts, and connecting rod, thereby achieving flexible adjustment of the inspection angle. This multi-directional adjustment capability ensures that the camera can perform a blind-angle scan of the crystal screen surface, accurately capture minute scratches, bubbles, and other defects, and significantly improve the inspection coverage and accuracy. 2. This invention sets up two workstations, inspection station one and inspection station two, on the machine, which can simultaneously carry different crystal film screens or alternately perform loading, unloading and inspection operations. When one inspection station is performing inspection, the other can simultaneously complete the replacement of the crystal film screen, effectively reducing equipment idle time and greatly increasing the inspection volume per unit time. It is suitable for the high-efficiency quality inspection needs of mass production scenarios. 3. The flipping assembly designed in this invention uses a servo motor to drive the rotating wheel to rotate. Utilizing the hinged transmission between the convex rod and the crank, it drives the first and second inspection platforms to rotate 0-180° around the pivot pin. This allows for switching between the front and back sides of the crystal screen without manual intervention. Combined with the position adjustment of the CCD inspection camera, defect detection on both sides of the same crystal screen can be completed in one go. This not only reduces the risk of damage caused by manual flipping but also ensures the consistency of the front and back inspection standards, thereby improving the reliability of product quality control. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the Y-axis sliding component and the Y-axis sliding plate of the present invention; Figure 3 This is a three-dimensional structural diagram of the rotating component of the present invention; Figure 4 This is an exploded three-dimensional structural diagram of the collar and side plate of the present invention; Figure 5 This is a three-dimensional cross-sectional structural diagram of the machine tool of the present invention; Figure 6 This is a three-dimensional structural diagram of the first and second testing stations of the present invention; Figure 7 This is a three-dimensional structural diagram of the flipping component of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the second protrusion and the second crank of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Machine base; 2. Frame; 3. X-axis sliding assembly; 4. X-axis slide plate; 5. Y-axis sliding assembly; 6. Y-axis slide plate; 7. Rotary assembly; 701. Rotary motor; 702. Shaft; 703. Shaft seat; 704. Connector; 705. Rotating pin; 706. Connecting rod; 707. Collar; 708. Side plate; 8. CCD inspection camera; 9. Bracket; 901. Stand; 902. Stop bar; 10. Inspection table one; 11. Inspection table two; 12. Flipping assembly; 1201. Servo motor; 1202. Rotary wheel; 1203. Protruding rod one; 1204. Crank one; 1205. Connecting seat; 1206. Protruding rod two; 1207. Crank two; 1208. Connecting arm; 13. Image acquisition display screen. Detailed Implementation

[0021] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0023] 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.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] This invention provides, for example Figure 1-8 The device shown is an inspection device for the production of crystal film screens, including a machine base 1. A frame 2 is fixed on the upper rear side of the machine base 1. An X-axis sliding assembly 3 extending horizontally is provided on the front wall of the frame 2. An X-axis sliding plate 4 is slidably connected to the X-axis sliding assembly 3. A Y-axis sliding assembly 5 extending vertically is provided on the front wall of the X-axis sliding plate 4. A Y-axis sliding plate 6 is slidably connected to the Y-axis sliding assembly 5. A rotating assembly 7 is provided on the front side of the Y-axis sliding plate 6. A CCD inspection camera 8 is installed below the rotating assembly 7. A bracket 9 is provided inside the machine base 1. Inspection platform 10 and inspection platform 2 11 are respectively provided on the left and right sides above the bracket 9. A flipping assembly 12 is provided between inspection platform 10, inspection platform 2 11 and the bracket 9. An image acquisition display screen 13 is provided on one side above the machine base 1. The image acquisition display screen 13 is connected to the CCD inspection camera 8 and can display the inspection image in real time and mark the defect location.

[0027] Both the X-axis sliding assembly 3 and the Y-axis sliding assembly 5 include a slide rail, a slider, a drive motor, and a lead screw. The slider is threadedly connected to the lead screw and slides with the slide rail. The X-axis slide plate 4 and the Y-axis slide plate 6 are respectively fixed on the corresponding sliders. The rotating assembly 7 includes a rotary motor 701 fixed to the front wall of the Y-axis slide plate 6. The output end of the rotary motor 701 is connected to a horizontally arranged rotating shaft 702. The two ends of the rotating shaft 702 are rotatably supported on the front wall of the Y-axis slide plate 6 through the bearing seat 703. A connecting piece 704 is fixed in the middle of the rotating shaft 702. A pivot pin 705 is hinged on the connecting piece 704. A connecting rod 706 is connected below the pivot pin 705. The rotating assembly 7 also includes a collar 707. The collar 707 is sleeved on the CCD inspection camera 8. The two sides of the collar 707 are rotatably connected to the side plate 708 through a horizontal axis. The side plate 708 is fixed to the front wall of the Y-axis slide plate 6.

[0028] In this embodiment, the X-axis sliding assembly 3 and the Y-axis sliding assembly 5, through the cooperation of slide rails, sliders, drive motors, and lead screws, enable the X-axis sliding plate 4 and the Y-axis sliding plate 6 to move precisely in the X-axis and Y-axis directions, respectively. This design allows devices mounted on the sliding plates, such as the rotating assembly 7 and the CCD inspection camera 8, to quickly and accurately reach designated positions in a two-dimensional plane, meeting the positioning requirements for different inspection positions and improving the flexibility and coverage of inspection. Furthermore, the rotating assembly 7 drives the rotating shaft 702 to rotate via the rotating motor 701, and then, through the transmission of the connecting piece 704, the pivot pin 705, and the connecting rod 706, the sleeve... Ring 707 rotates around the horizontal axis to adjust the angle of CCD inspection camera 8 in the vertical plane. This angle adjustment function enables CCD inspection camera 8 to inspect target objects at different angles, adapting to various complex inspection scenarios and improving the comprehensiveness and accuracy of inspection. Therefore, through the cooperation of X-axis sliding component 3, Y-axis sliding component 5 and rotation component 7, a complete motion system is formed. By precisely controlling the movement of each component, CCD inspection camera 8 can quickly and accurately reach the designated position in three-dimensional space and perform inspection at a suitable angle, greatly improving inspection efficiency and accuracy.

[0029] The bracket 9 includes a base 901 at the top and two stops 902 at the bottom. The top of the base 901 is provided with a hinge seat that is adapted to the first test platform 10 and the second test platform 11. The two stops 902 are located directly below the first test platform 10 and the second test platform 11, respectively, to limit the rotation angle of the test platforms. The first test platform 10 and the second test platform 11 are respectively hinged to the top of the base 901 by pins, which can achieve 0-180° rotation.

[0030] In this embodiment, the bracket 9 serves as the basic support structure of the entire testing device. The design of its base 901 and stop bar 902 ensures the overall stability. The base 901 provides a reliable installation position for the first testing platform 10 and the second testing platform 11, and can bear the weight of the testing platform and the electronic products placed on it. The hinge seat at the top of the base 901, which is compatible with the first testing platform 10 and the second testing platform 11, allows the testing platform to be flexibly hinged to the base 901 through the pin. This design gives the testing platform the ability to rotate from 0 to 180 degrees, realizing automatic flipping of the product without the need for manual flipping and repositioning, which greatly improves the convenience and efficiency of testing. The two stop bars 902 are located directly below the first testing platform 10 and the second testing platform 11, respectively, and play a key role in precisely limiting the rotation angle of the testing platform. During the rotation of the testing platform, when it approaches 180 degrees, the stop bar 902 will contact the bottom of the testing platform to prevent it from continuing to rotate, ensuring that the testing platform stays in the appropriate testing position.

[0031] The flipping assembly 12 includes a servo motor 1201 fixed on the bracket 9. The output end of the servo motor 1201 is connected to a rotating wheel 1202. The non-center parts of the two sides of the rotating wheel 1202 are respectively provided with a first protrusion 1203 and a second protrusion 1206. The first protrusion 1203 is hinged to a first crank 1204. The end of the first crank 1204 is hinged to the bottom of the first detection table 10 through a connecting seat 1205. The second protrusion 1206 is hinged to a second crank 1207. The end of the second crank 1207 is hinged to the bottom of the second detection table 11 through a connecting arm 1208.

[0032] In this embodiment, the flipping assembly 12 drives the rotating wheel 1202 to rotate via the servo motor 1201, which in turn drives the crank 1204 and the crank 2 1207 to move, thereby realizing the automatic flipping of the inspection platform 10 and the inspection platform 2 11. This automated design replaces the traditional manual flipping operation, greatly improving the inspection efficiency and reducing the time and labor intensity of manual operation.

[0033] Working principle of this invention: Refer to the instruction manual appendix Figure 1-2 When using this invention, firstly, confirm that the flipping assembly 12 is in its initial state, that is, the first inspection platform 10 and the second inspection platform 11 are in a horizontal position to facilitate the placement of the crystal screen. Place the crystal screen to be inspected flat on the first inspection platform 10, then start the equipment and control the drive motors of the X-axis sliding assembly 3 and the Y-axis sliding assembly 5 to work. Through the transmission of the lead screw and the slider, the X-axis slide plate 4 and the Y-axis slide plate 6 drive the CCD inspection camera 8 to move above the initial inspection position of the crystal screen on the first inspection platform 10, so that the CCD inspection camera 8 can perform a full scan of the crystal screen in a two-dimensional plane. The CCD inspection camera 8 begins to acquire images of the crystal screen and transmits the image signals to the image acquisition display screen 13 for real-time display and marks the defect positions. Refer to the instruction manual appendix Figure 3-4 In using this invention, to obtain more comprehensive information about the crystal screen and improve the accuracy of detection, multi-angle detection is required for some crystal screens with complex structures or special detection requirements. In this case, the rotating motor 701 of the rotating assembly 7 is controlled to rotate, driving the rotating shaft 702 to rotate. The rotating shaft 702, through the transmission of the connecting piece 704, the pivot pin 705, and the connecting rod 706, causes the collar 707 to rotate around the horizontal axis, thereby adjusting the angle of the CCD inspection camera 8. After adjusting the angle, the X-axis sliding assembly 3 and the Y-axis sliding assembly 5 are controlled again to allow the CCD inspection camera 8 to perform specific angle detection on the crystal screen, repeating the steps of image acquisition and analysis to mark defects. Refer to the instruction manual appendix Figure 5-8When using this invention, after one side of the crystal film screen on the testing stage 10 has been tested, it can be flipped over to test the other side. The servo motor 1201 of the flipping assembly 12 is controlled to rotate, and the servo motor 1201 drives the rotating wheel 1202 to rotate. The non-center parts of the discs on both sides of the rotating wheel 1202 are respectively provided with a first protrusion 1203 and a second protrusion 1206. The first protrusion 1203 is hinged to a first crank 1204, and the end of the first crank 1204 is hinged to the bottom of the testing stage 10 through a connecting seat 1205. The second protrusion 1206 is hinged to a second crank 1207. The end of crank 1207 is hinged to the bottom of test stage 11 via connecting arm 1208. Through the action of crank 1204 and crank 1207, test stage 10 and test stage 21 are rotated synchronously. During the rotation, the two stops 902 on the bracket 9 are located directly below test stage 10 and test stage 21 respectively, which plays a role in precisely limiting the rotation angle of the test stage, ensuring that the rotation angle of the test stage is 180° when it is rotated to the appropriate test position, so that the crystal screen on test stage 10 can be smoothly rotated to the top of test stage 21. After the crystal screen is flipped over, follow the steps for front inspection of inspection station 10 to conduct a full inspection of the other side of the crystal screen on inspection station 21. Similarly, first control the X-axis sliding component 3 and the Y-axis sliding component 5 to position the CCD inspection camera 8 to the initial inspection position, and then perform full scanning, image acquisition, defect marking, and multi-angle inspection if necessary. During the testing of the crystal screen on testing station 211, the operator can make full use of this time to place another crystal screen to be tested flat on testing station 10. After the crystal screen on testing station 211 is tested, the crystal screen on testing station 211 is removed according to the above flipping testing procedure. At the same time, the newly placed crystal screen on testing station 10 is tested, and then flipped back to testing station 211 for testing. This cycle is repeated to achieve continuous and efficient testing of crystal screens, greatly improving testing efficiency.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A testing device for the production of crystal film screens, comprising a machine base (1), characterized in that: The machine (1) is fixed with a frame (2) on the upper rear side. The front wall of the frame (2) is provided with an X-axis sliding assembly (3) extending in the horizontal direction. An X-axis sliding plate (4) is slidably connected to the X-axis sliding assembly (3). The front wall of the X-axis sliding plate (4) is provided with a Y-axis sliding assembly (5) extending in the vertical direction. A Y-axis sliding plate (6) is slidably connected to the Y-axis sliding assembly (5). A rotating assembly (7) is provided on the front side of the Y-axis sliding plate (6). A CCD inspection camera (8) is installed below the rotating assembly (7). A bracket (9) is provided inside the machine (1). Inspection platform one (10) and inspection platform two (11) are respectively provided on the left and right sides above the bracket (9). A flipping assembly (12) is provided between the inspection platform one (10), inspection platform two (11) and the bracket (9). An image acquisition display screen (13) is provided on one side above the machine (1).

2. The testing device for crystal film screen production according to claim 1, characterized in that: The X-axis sliding assembly (3) and the Y-axis sliding assembly (5) both include a slide rail, a slider, a drive motor and a lead screw. The slider is threadedly connected to the lead screw and slides with the slide rail. The X-axis slide plate (4) and the Y-axis slide plate (6) are respectively fixed on the corresponding slider.

3. The testing device for producing crystal film screens according to claim 1, characterized in that: The rotating assembly (7) includes a rotary motor (701) fixed to the front wall of the Y-axis slide plate (6). The output end of the rotary motor (701) is connected to a horizontally arranged rotating shaft (702). Both ends of the rotating shaft (702) are rotatably supported on the front wall of the Y-axis slide plate (6) through a bearing seat (703). A connector (704) is fixed in the middle of the rotating shaft (702). A pivot pin (705) is hinged on the connector (704). A connecting rod (706) is connected below the pivot pin (705).

4. The testing device for producing crystal film screens according to claim 3, characterized in that: The rotating assembly (7) also includes a collar (707), which is fitted onto the CCD inspection camera (8). The collar (707) is rotatably connected to the side plate (708) on both sides via a horizontal axis. The side plate (708) is fixed to the front wall of the Y-axis slide plate (6).

5. The testing device for producing crystal film screens according to claim 1, characterized in that: The bracket (9) includes a stand (901) at the top and two stops (902) at the bottom. The top of the stand (901) is provided with a hinge seat that is adapted to the first test platform (10) and the second test platform (11). The two stops (902) are located directly below the first test platform (10) and the second test platform (11) respectively, and are used to limit the flipping angle of the test platform.

6. The testing device for producing crystal film screens according to claim 5, characterized in that: The first testing platform (10) and the second testing platform (11) are respectively hinged to the top of the stand (901) by pins, which can achieve 0-180° rotation.

7. The testing device for producing crystal film screens according to claim 1, characterized in that: The flipping assembly (12) includes a servo motor (1201) fixed on a bracket (9). The output end of the servo motor (1201) is connected to a rotating wheel (1202). The rotating wheel (1202) has a protruding rod one (1203) and a protruding rod two (1206) respectively at the non-center of the disc surface on both sides.

8. The testing device for producing crystal film screens according to claim 7, characterized in that: The first protrusion (1203) is hinged to the first crank (1204), and the end of the first crank (1204) is hinged to the bottom of the first testing table (10) through the connecting seat (1205).

9. The testing device for producing crystal film screens according to claim 7, characterized in that: The second protruding rod (1206) is hinged to the second crank (1207), and the end of the second crank (1207) is hinged to the bottom of the second testing table (11) via the connecting arm (1208).

10. The testing device for producing crystal film screens according to claim 1, characterized in that: The image acquisition display screen (13) is connected to the CCD inspection camera (8) and can display the inspection image and mark the defect location in real time.

Images