post-assembly accuracy checking mechanism

Abstract

The utility model discloses a precision detection mechanism after sticking relates to liquid crystal display manufacturing technical field, and it is fixed with the rectangular frame to the end of the gyro wheel conveying device, CCD detection module is two groups and is set up in the upside and downside position of gyro wheel conveying device, the upper pressure flat lifting mechanism is set up in the upside position of gyro wheel conveying device, the lower pressure flat lifting mechanism is set up in the downside position of gyro wheel conveying device, and the blocking positioning mechanism is set up in the downside position of gyro wheel conveying device. The utility model discloses a gyro wheel conveying device to Cell is transported, and utilizes the upper pressure flat lifting mechanism and the lower pressure flat lifting mechanism to the Cell after positioning is pressed flat on both sides synchronously, makes the upper and lower two groups of CCD detection module can carry out the alternate detection of Cell on Pol sticking precision, and realizes the compatibility of CCD detection module to the Cell detection of different size, improves the detection precision.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display manufacturing technology, and in particular to a precision inspection mechanism after bonding. Background Technology

[0002] In the manufacturing process of liquid crystal displays (LCDs), the Pol process is a crucial step. Pol refers to the process of attaching polarizers to both sides of the liquid crystal display panel (cell).

[0003] In existing technologies, after large-size Cell Pol (referring to polarizing plates bonded to large-size LCD panels) are bonded, the accuracy of the Pol is checked on a CV (visual inspection equipment) or directly transferred to the next process station by a robot. However, during the current Cell Pol transport process on the CV, due to the large size of the Cell Pol, product deformation is prone to occur during operation, resulting in unclear CCD images on the CV and low detection accuracy, which is difficult to meet practical needs.

[0004] To address the aforementioned issues, a post-fitting precision inspection mechanism is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a precision inspection mechanism after bonding, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision inspection mechanism after bonding, comprising:

[0007] A roller conveyor, wherein a rectangular frame is fixedly provided at the end of the roller conveyor;

[0008] The CCD detection module consists of two sets, which are arranged opposite each other above and below the roller conveyor. The CCD detection module is used to detect the bonding accuracy of the liquid crystal display panel and the polarizing plate.

[0009] The upper pressing and lifting mechanism is located above the roller conveyor and is used to flatten the upper surface of the liquid crystal display panel.

[0010] A downward pressing and lifting mechanism is provided, which is located below the roller conveyor and is used to flatten the lower surface of the liquid crystal display panel.

[0011] A blocking and positioning mechanism is provided below the roller conveyor device. The blocking and positioning mechanism is used to block and position the liquid crystal display panel on the roller conveyor device.

[0012] Preferably, X-axis servo modules are symmetrically fixedly connected to the top and bottom of the rectangular frame, and each group of CCD detection modules consists of two spaced-apart CCD detection modules. The X-axis servo modules are used to drive the corresponding CCD detection modules to move horizontally.

[0013] Preferably, the upper pressure flat lifting mechanism includes:

[0014] The fixed frame is connected to the moving end of the X-axis servo module via a transmission connection.

[0015] A connecting seat is movably disposed below the fixed frame, and upper pressure plates are fixedly connected to both sides of the bottom end of the connecting seat;

[0016] The upper lifting cylinder is fixedly installed in the middle of the fixed frame and is used to drive the connecting seat to rise and fall in the vertical direction.

[0017] Preferably, a Y-axis servo module is fixedly mounted on the top of one of the mounting brackets and is arranged perpendicularly to the X-axis servo module. The moving end of the Y-axis servo module is fixedly connected to the CCD detection module at the corresponding position.

[0018] Preferably, the downward pressing and lifting mechanism includes:

[0019] A support base is located below the roller conveyor, and two downward lifting cylinders are symmetrically fixedly connected to the support base.

[0020] The two lower pressure plates are respectively fixedly connected to the telescopic ends of the two lower lifting cylinders.

[0021] Preferably, the blocking positioning mechanism includes:

[0022] A blocking and positioning cylinder is fixedly installed below the roller conveyor device;

[0023] A blocking strip is arranged parallel to the bottom of the roller conveyor and is fixedly connected to the telescopic end of the blocking positioning cylinder.

[0024] The technical effects and advantages of this utility model are as follows:

[0025] This invention uses a roller conveyor to transport the Cell (liquid crystal display panel), and utilizes an upper and lower pressing and lifting mechanism to simultaneously flatten the positioned Cell on both sides. This allows the upper and lower CCD detection modules to alternately detect the Pol bonding accuracy at the front end of the Cell, and similarly, alternately detect the Pol bonding accuracy at the rear end of the Cell. This enables the CCD detection modules to be compatible with the detection of Cells of different sizes, improves detection accuracy, ensures that defective products do not flow into the next process, reduces material waste, and significantly improves production efficiency. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0027] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0028] Figure 3 This is a three-dimensional structural diagram of the detection component of this utility model.

[0029] Figure 4 This is a three-dimensional structural diagram of the blocking and positioning mechanism of this utility model.

[0030] In the diagram: 100, Roller conveyor; 101, Rectangular frame; 200, CCD detection module; 201, X-axis servo module; 202, Y-axis servo module; 300, Upper pressing and lifting mechanism; 301, Fixed frame; 302, Connecting seat; 303, Upper lifting cylinder; 304, Upper pressure plate; 400, Lower pressing and lifting mechanism; 401, Lower lifting cylinder; 402, Lower pressure plate; 500, Blocking and positioning mechanism; 501, Blocking and positioning lifting cylinder; 502, Blocking strip. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] This utility model provides, for example Figures 1-4 The shown is a precision inspection mechanism after bonding.

[0033] Example 1 includes a roller conveyor 100, a CCD detection module 200, an upper pressure flat lifting mechanism 300, a lower pressure flat lifting mechanism 400, and a blocking positioning mechanism 500. A rectangular frame 101 is fixedly installed at the end of the roller conveyor 100. Two sets of CCD detection modules 200 are arranged opposite each other above and below the roller conveyor 100. The CCD detection modules 200 are used to detect the bonding accuracy of the liquid crystal display panel and the polarizing plate. Each CCD detection module 200 mainly consists of a bracket, a CCD camera, and a light source. The upper pressure flat lifting mechanism 300 is located on the roller conveyor... The upper pressing and lifting mechanism 300 is positioned above the roller conveyor 100 to flatten the upper surface of the liquid crystal display panel, while the lower pressing and lifting mechanism 400 is positioned below the roller conveyor 100 to flatten the lower surface of the liquid crystal display panel. A blocking and positioning mechanism 500 is positioned below the roller conveyor 100 to block and position the liquid crystal display panel on the roller conveyor 100. In this embodiment, the transport CV transfers the cell with the Pol attached to it to the imaging position of the roller conveyor 100, thus initially positioning the cell. At this point, the front end of the Cell is positioned between the upper and lower flat-top lifting mechanisms 300 and 400. The upper and lower flat-top lifting mechanisms 300 and 400 press the same positions on both sides of the Cell, flattening the front end. Then, the light source on the upper CCD detection module 200 is turned on, and the light source on the lower CCD detection module 200 is turned off, allowing the upper CCD detection module 200 to detect the Pol bonding accuracy on the front end of the Cell. Similarly, the light source on the upper CCD detection module 200... The light source on the CCD detection module 200 is turned off, while the light source on the lower CCD detection module 200 is turned on, allowing the lower CCD detection module 200 to detect the Pol bonding accuracy on the front end of the Cell, completing an alternating detection cycle. Because the upper pressing and lifting mechanism 300 and the lower pressing and lifting mechanism 400 flatten the Cell, the Mark points on the Cell can be clearly displayed, enabling the CCD detection module 200 to clean and photograph these points, improving detection accuracy, ensuring that defective products do not flow into the next process, reducing material waste, and significantly improving production efficiency.

[0034] X-axis servo modules 201 are symmetrically fixedly connected to the top and bottom of the rectangular frame 101. Each group of CCD detection modules 200 consists of two spaced-apart units. The X-axis servo modules 201 are used to drive the CCD detection modules 200 at the corresponding positions to move horizontally. By using the X-axis servo modules 201 to drive the two CCD detection modules 200 at the upper or lower positions to move horizontally, it can adapt to the detection of different cell widths, has high adaptability, and can be compatible with the image detection of cells of various sizes, making the detection work highly adaptable and improving the detection accuracy.

[0035] Example 2: Based on Example 1, the upper pressing and lifting mechanism 300 includes a fixed frame 301, a connecting seat 302, and an upper lifting cylinder 303. The fixed frame 301 is connected to the moving end of the X-axis servo module 201 via a transmission connection. The connecting seat 302 is movably disposed below the fixed frame 301. Upper pressure plates 304 are fixedly connected to both sides of the bottom end of the connecting seat 302. The upper lifting cylinder 303 is fixedly disposed in the middle of the fixed frame 301. The upper lifting cylinder 303 is used to drive the connecting seat 302 to rise and fall vertically. By driving the connecting seat 302 to rise and fall vertically through the upper lifting cylinder 303, the two upper pressure plates 304 below it can be moved downward, flattening the upper surface of the Cell at two points, so that the CCD detection module 200 can detect the M on the Cell. Clear imaging of ark points helps improve detection accuracy. A Y-axis servo module 202, perpendicular to the X-axis servo module 201, is fixedly mounted on the top of one of the mounting brackets 301. The moving end of the Y-axis servo module 202 is fixedly connected to the corresponding CCD detection module 200. The Y-axis servo module 202 allows one of the CCD detection modules 200 at the upper position to be connected to the X-axis servo module 201 via the Y-axis servo module 202. This enables horizontal and vertical position adjustment of the CCD detection module 200 at that position to meet the requirements for photographing and detecting specific points on the cell, thereby further improving the adaptability of the detection work and helping to improve detection accuracy and efficiency.

[0036] Example 3: Based on Example 1 or Example 2, the lower pressing and lifting mechanism 400 includes a support base and two lower pressing plates 402. The support base is located below the roller conveyor device 100. Two lower lifting cylinders 401 are symmetrically fixedly connected to the support base. The two lower pressing plates 402 are respectively fixedly connected to the telescopic ends of the two lower lifting cylinders 401. The lower pressing plates 402 are driven to rise by the lower lifting cylinders 401. In cooperation with the upper pressing and lifting mechanism 300 at the upper position, the lower surface of the Cell can be flattened, so that the CCD detection module 200 located at the lower position can detect the bonding accuracy between the lower surface of the Cell and the Pol, thereby further improving the accuracy of the detection work.

[0037] Example 4: Based on Example 1, Example 2, or Example 3, the blocking positioning mechanism 500 includes a blocking positioning cylinder 501 and a blocking strip 502. The blocking positioning cylinder 501 is fixedly disposed below the roller conveyor 100, and the blocking strip 502 is disposed parallel to the bottom of the roller conveyor 100. The blocking strip 502 is fixedly connected to the telescopic end of the blocking positioning cylinder 501. The blocking positioning mechanism 500 is generally configured as two sets spaced apart, so that the blocking positioning cylinder 501 can drive the blocking strip 502 to rise, thereby controlling the movement of the Cell on the roller conveyor 100. The position is blocked and positioned so that when the front end of the Cell reaches the position below the CCD detection module 200, the front end of the Cell contacts the side wall of the raised blocking strip 502, thus positioning the front end of the Cell. When detecting the bonding accuracy of the rear end of the Cell, the first set of blocking and positioning mechanisms 500 descends and resets, and the second set of blocking and positioning mechanisms 500 rises, so that when the front end of the Cell reaches the blocking position with the blocking strip 502, the detection position of the rear end of the Cell is located directly below the CCD detection module 200, thus achieving blocking and positioning of the Cell detection position, thereby further improving the detection accuracy.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision inspection mechanism after bonding, characterized in that, include: A roller conveyor (100) is provided with a rectangular frame (101) fixed at its end. CCD detection module (200), the CCD detection module (200) consists of two sets and is arranged opposite to each other above and below the roller conveyor (100). The CCD detection module (200) is used to detect the bonding accuracy of the liquid crystal display panel and the polarizing plate. The upper pressing and lifting mechanism (300) is located above the roller conveyor (100) and is used to flatten the upper surface of the liquid crystal display panel. A downward pressing and lifting mechanism (400) is provided below the roller conveyor (100) and is used to flatten the lower surface of the liquid crystal display panel. A blocking positioning mechanism (500) is provided below the roller conveyor (100) and is used to block and position the liquid crystal display panel on the roller conveyor (100).

2. The bonding precision inspection mechanism according to claim 1, characterized in that, The top and bottom of the rectangular frame (101) are symmetrically fixed with X-axis servo modules (201). Each group of CCD detection modules (200) consists of two spaced-apart units. The X-axis servo modules (201) are used to drive the corresponding CCD detection modules (200) to move horizontally.

3. The bonding precision inspection mechanism according to claim 2, characterized in that, The upper pressure flat lifting mechanism (300) includes: A fixed frame (301) is connected to the moving end of the X-axis servo module (201) via a transmission connection. Connecting seat (302), the connecting seat (302) is movably disposed below the fixing frame (301), and upper pressure plate (304) is fixedly connected to both sides of the bottom end of the connecting seat (302). The upper lifting cylinder (303) is fixedly installed in the middle of the fixed frame (301). The upper lifting cylinder (303) is used to drive the connecting seat (302) to rise and fall in the vertical direction.

4. The post-bonding precision inspection mechanism according to claim 3, characterized in that, One of the mounting brackets (301) has a Y-axis servo module (202) fixedly mounted on its top, which is perpendicular to the X-axis servo module (201). The moving end of the Y-axis servo module (202) is fixedly connected to the CCD detection module (200) at the corresponding position.

5. The bonding precision inspection mechanism according to claim 4, characterized in that, The downward-pressing flat-top lifting mechanism (400) includes: The support base is located below the roller conveyor (100), and two lower lifting cylinders (401) are symmetrically fixedly connected to the support base. Two lower pressure plates (402) are fixedly connected to the telescopic ends of two lower lifting cylinders (401), respectively.

6. The bonding precision inspection mechanism according to claim 5, characterized in that, The blocking positioning mechanism (500) includes: A blocking positioning cylinder (501) is fixedly installed below the roller conveyor (100); A blocking strip (502) is arranged parallel to the bottom of the roller conveyor (100), and the blocking strip (502) is fixedly connected to the telescopic end of the blocking positioning cylinder (501).

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