3A cover plate inspection bench

Abstract

The invention provides a 3A cover plate inspection bench which comprises a workbench, the workbench comprises an upper layer plate and a lower layer plate which are arranged in an up-down layered mode, and the surface of the upper layer plate is black and is provided with an anti-static layer; a top plate opposite to the upper-layer plate is arranged above the workbench, the surface of the top plate is black, and an upper light source is mounted on the top plate; a back plate connecting the workbench and the top plate is arranged on one side of the workbench and the top plate, the surface of the back plate is black, and a side light source is installed on the side, where the workbench and the top plate are located, of the back plate. According to the invention, the requirements of two inspection modes can be met, the risk of material mixing is avoided, the inspection efficiency can be effectively improved, and the phenomenon of missing inspection is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of optoelectronic display, and particularly relates to a 3A cover plate inspection table. Background Art

[0002] The 3A cover plate is a film used to protect the display screen, with functions such as anti-reflection, anti-glare, and anti-fingerprint. It is mainly applied to liquid crystal displays and plays an important role in liquid crystal displays. It can protect the screen from scratches and contamination, and at the same time improve the display effect. The 3A cover plate usually consists of a three-layer structure, including a bottom layer, a middle layer, and a surface layer, and each layer has its specific function. The bottom layer provides basic support, the middle layer is used for anti-reflection and anti-glare, and the surface layer is used for anti-fingerprint and enhancing touch sensitivity. In order to ensure the qualified rate of the 3A cover plate when leaving the factory, it must be detected during the production and manufacturing process. Summary of the Invention

[0003] In order to solve the technical problems existing in the background art, the present invention proposes a 3A cover plate inspection table.

[0004] A 3A cover plate inspection table proposed by the present invention includes: a workbench, the workbench includes an upper plate and a lower plate which are arranged in an upper and lower layered manner, the surface of the upper plate is black and is provided with an anti-static layer;

[0005] Above the workbench, there is a top plate opposite to its upper plate. The surface of the top plate is black, and an upper light source is installed on the top plate; on one side of the workbench and the top plate, there is a back plate connecting the two. The surface of the back plate is black, and a side light source is installed on the side of the back plate where the workbench and the top plate are located.

[0006] Preferably, on both sides of the upper plate near and far from the back plate, there are slideways and sliders installed in the slideways and a first driving mechanism for driving the sliders to slide in the slideways; above the upper plate, there is a cross bar, both ends of the cross bar are fixed to the sliders arranged on both sides of the upper plate, the cross bar is installed with a push block and a pneumatic finger, and the grasping end of the pneumatic finger faces one side of the cross bar, and the push block is located on the other side of the cross bar.

[0007] Preferably, the upper surface of the upper plate is provided with a channel extending in the same direction as the slideway, and the lower end of the push block is located in the channel.

[0008] Preferably, the lower plate is connected with a second driving mechanism to be driven to move horizontally by the second driving mechanism.

[0009] Preferably, on both sides of the lower plate near and far from the back plate, there are telescopic cylinders. The two telescopic cylinders are spaced apart in the moving direction of the lower plate, and the extending ends of the two telescopic cylinders face upwards, and third driving mechanisms are installed at the ends of the extending ends, and a support plate connected to the third driving mechanisms and rotatable by the third driving mechanisms is installed.

[0010] Preferably, the telescopic cylinder is installed at the lower end of the lower layer board, and its extending end passes through the lower layer board and extends above the lower layer board.

[0011] Preferably, the third driving mechanism includes a vertically arranged rotating shaft and a power component for driving the rotating shaft to rotate, and the rotating shaft has a first rotation angle and a second rotation angle, and the difference between the first rotation angle and the second rotation angle is not less than 90°; the supporting plate is a strip-shaped rod, one end of which is fixed at the top of the rotating shaft and the other end is a free end, and when the rotating shaft is at the first rotation angle, the free end of the supporting plate faces the inner side of the lower layer board.

[0012] Preferably, a proximity switch is provided on the supporting plate.

[0013] Preferably, universal wheels are provided at the bottom of the workbench for easy movement.

[0014] Preferably, the upper layer board, the lower layer board, as well as the top board and the back board are all made of black PVC boards.

[0015] In the present invention, the workbench includes an upper layer board and a lower layer board which are arranged in upper and lower layers. The surface of the upper layer board is black and is provided with an anti-static layer; the surface of the lower layer board is black and is provided with an anti-static layer; the top board is horizontally arranged above the upper layer board, the lower board surface of the top board is black and an upper light source is installed; the back board is arranged on one side of the workbench and the top board and is connected to both of them. The board surface of the back board on the side where the workbench and the top board are located is black and a side light source is installed. During work, the workpiece to be tested is placed on the upper layer board so that it is on a black background, and the upper light source at the top is turned on for reflection inspection. After the reflection inspection is completed, the upper light source at the top is turned off, and then the side light source at the side is started to perform transmission inspection. After the inspection is completed, the unqualified products are transferred to the lower layer board. This inspection table can meet the requirements of two inspection modes, avoid the risk of material mixing, and the black background can effectively improve the inspection efficiency and reduce the phenomenon of missed inspection. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of a 3A cover plate inspection table proposed by the present invention;

[0017] Figure 2 It is an example diagram of the working principle of the push block and the pneumatic finger arranged on the cross bar in a 3A cover plate inspection table proposed by the present invention. Detailed Embodiments

[0018] Referring to Figure 1 , a 3A cover plate inspection table proposed by the present invention includes: a workbench, a top board 3 and a back board 5. The workbench includes an upper layer board 1 and a lower layer board 2 which are arranged in upper and lower layers. The upper layer board 1 is made of black PVC board so that the surface of the upper layer board 1 is black, and an anti-static layer is provided on the upper board surface of the upper layer board 1. Universal wheels are provided at the bottom of the workbench for easy movement.

[0019] The top plate 3 is horizontally arranged above the upper layer plate 1. The top plate 3 is made of black PVC board so that the surface of the top plate 3 is black. An upper light source 4 is installed on the top plate 3. The back plate 5 is arranged on one side of the workbench and the top plate 3 and is connected to both of them. The back plate 5 is made of black PVC board so that the surface of the back plate 5 is black. A side light source 6 is installed on the back plate 5.

[0020] During operation, the workpiece to be tested is placed on the upper layer plate 1 so that it is on a black background, and the upper light source at the top is turned on for reflection inspection. During the emission inspection process, the black background can effectively reduce background noise interference, improve the inspection efficiency and reduce the phenomenon of missed inspection. After the reflection inspection is completed, the upper light source 4 at the top is turned off, and then the side light source 6 on the side is started to illuminate the workpiece laterally for transmission inspection. After the inspection is completed, the non-conforming products are transferred to the lower layer plate 2. Compared with the prior art, the inspection table has the following advantages:

[0021] 1. The design of the top plate 3 can effectively reduce dust from falling on the surface of the workpiece to be detected;

[0022] 2. The upper light source 4 arranged at the top and the side light source 6 arranged at the side can perform reflection detection and transmission detection respectively;

[0023] 3. The setting of the black background can more quickly identify defective phenomena, improve the detection efficiency and reduce the missed inspection rate;

[0024] 4. The setting of the lower layer plate 2 can be used as an area for storing non-conforming products to reduce the turnover time and ESD protection;

[0025] 5. The workbench is in a state of being open on three sides, which is convenient for the workpiece to be loaded and unloaded.

[0026] Refer to Figure 2 , on both sides of the upper layer plate 1 close to and away from the back plate 5, slideways are provided, as well as sliders installed in the slideways and a first driving mechanism for driving the sliders to slide in the slideways. A cross bar 7 is arranged above the upper layer plate 1, and both ends of the cross bar 7 are fixed to the sliders arranged on both sides of the upper layer plate 1 respectively. A pushing block 8 and a pneumatic finger 9 are installed on the cross bar 7, and the grasping end of the pneumatic finger 9 faces one side of the cross bar 7, and the pushing block 8 is located on the other side of the cross bar 7. During operation, the cross bar 7 is driven by the first driving mechanism to move from one end of the upper layer plate 1 to the other end. During the movement, the pushing block 8 installed on the cross bar 7 pushes the workpiece on the upper layer plate 1 out, and the pneumatic finger 9 installed on the cross bar 7 grabs a new workpiece and drags it onto the upper layer plate 1.

[0027] Furthermore, a channel extending in the same direction as the slideway is provided on the upper surface of the upper layer plate 1, and the lower end of the pushing block 8 is located in the channel to ensure that when the pushing block 8 pushes the workpiece, the lower end of the pushing block 8 is below the workpiece.

[0028] In this embodiment, the lower layer plate 2 is connected to a second driving mechanism to be driven to move horizontally by the second driving mechanism. At the same time, telescopic cylinders 10 are provided on both the side of the lower layer plate 2 close to and away from the back plate 5. The two telescopic cylinders 10 are arranged at intervals in the moving direction of the lower layer plate 2, and the extending ends of the two telescopic cylinders 10 face upward, and a third driving mechanism and a support plate 11 connected to the third driving mechanism and capable of being driven by the third driving mechanism to rotate are installed at the ends of the extending ends. During operation, when the workpiece fails the inspection, the second driving mechanism pushes the lower layer plate 2 out from below the upper layer plate 1; then, the telescopic cylinders 10 on both sides of the lower layer plate 2 are pushed out, and the third driving mechanism drives the support plate 11 to turn towards the inner side of the lower layer plate 2, so that both sides of the support plate 11 are in an inward-facing state, and the two cooperate to form a lifting plane at the same height as the upper layer plate 1, and the unqualified workpiece is directly pushed from the upper layer plate 1 onto this lifting plane; then, the telescopic cylinders 10 retract, and when the support plate 11 reaches a predetermined height, the third driving mechanism drives the support plate 11 to rotate towards the outer side of the lower layer plate 2, so that the support plate 11 is separated from the workpiece, and the workpiece falls onto the lower layer plate 2; finally, the second driving mechanism drives the lower layer plate 2 to retract below the upper layer plate 1.

[0029] Specifically: The telescopic cylinder 10 is installed at the lower end of the lower layer plate 2, and its extending end passes through the lower layer plate 2 and extends above the lower layer plate 2. The third driving mechanism includes a vertically arranged rotating shaft and a power component for driving the rotating shaft to rotate, and the rotating shaft has a first rotation angle and a second rotation angle, and the difference between the first rotation angle and the second rotation angle is not less than 90°; the support plate 11 is a strip-shaped rod, one end of which is fixed to the top of the rotating shaft, and the other end is a free end, and when the rotating shaft is at the first rotation angle, the free end of the support plate 11 faces the inner side of the lower layer plate 2. And a proximity switch is provided on the support plate 11. During the downward movement of the support plate 11, when an object below the support plate 11 enters the detection range of the proximity switch, the power component in the third driving mechanism drives the rotating shaft to enter the second rotation angle, so that the support plate 11 rotates out from below the workpiece, and then the workpiece loses the support of the support plate 11 and falls onto the lower layer plate 2.

[0030] As can be seen from the above, the present invention can meet the requirements of two inspection modes, avoid the risk of material mixing, and can effectively improve the inspection efficiency and reduce the phenomenon of missed inspection.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A 3A cover plate inspection table, characterized in that, Including: A workbench, the workbench includes an upper plate (1) and a lower plate (2) which are arranged in upper and lower layers. The surface of the upper plate (1) is black and is provided with an anti-static layer; Above the workbench, there is a top plate (3) opposite to its upper plate (1). The surface of the top plate (3) is black, and an upper light source (4) is installed on the top plate (3); on one side of the workbench and the top plate (3), there is a back plate (5) connecting the two. The surface of the back plate (5) is black, and a side light source (6) is installed on the side where the back plate (5) is located on the side of the workbench and the top plate (3).

2. The 3A cover plate inspection table according to claim 1, wherein On both sides of the upper plate (1) close to and away from the back plate (5), there are slideways, sliders installed in the slideways, and a first driving mechanism for driving the sliders to slide in the slideways; above the upper plate (1), there is a cross bar (7). The two ends of the cross bar (7) are respectively fixed to the sliders arranged on both sides of the upper plate (1). The cross bar (7) is equipped with a push block (8) and a pneumatic finger (9). The grasping end of the pneumatic finger (9) faces one side of the cross bar (7), and the push block (8) is located on the other side of the cross bar (7).

3. The 3A cover plate inspection table according to claim 2, characterized in that, On the upper surface of the upper plate (1), there is a channel extending in the same direction as the slideway. The lower end of the push block (8) is located in the channel.

4. The 3A cover plate inspection table according to claim 1, wherein The lower plate (2) is connected with a second driving mechanism to be driven to move horizontally by the second driving mechanism.

5. The 3A cover plate inspection table according to claim 4, characterized in that, On both sides of the lower plate (2) close to and away from the back plate (5), there are telescopic cylinders (10). The two telescopic cylinders (10) on both sides are arranged at intervals in the moving direction of the lower plate (2). The extending ends of the two telescopic cylinders (10) on both sides face upwards, and third driving mechanisms are installed at the ends of the extending ends, and a tray (11) connected to the third driving mechanism and rotatable by the third driving mechanism is installed.

6. The 3A cover plate inspection table according to claim 5, wherein, The telescopic cylinder (10) is installed at the lower end of the lower plate (2), and its extending end passes through the lower plate (2) and extends above the lower plate (2).

7. The 3A cover plate inspection table according to claim 5, characterized in that, The third driving mechanism includes a vertically arranged rotating shaft and a power component for driving the rotating shaft to rotate. The rotating shaft has a first rotation angle and a second rotation angle, and the difference between the first rotation angle and the second rotation angle is not less than 90°; the tray (11) is a strip-shaped rod, one end of which is fixed to the top of the rotating shaft, and the other end is a free end. When the rotating shaft is at the first rotation angle, the free end of the tray (11) faces the inner side of the lower plate (2).

8. The 3A cover plate inspection table according to claim 5, characterized in that, A proximity switch is provided on the tray (11).

9. The 3A cover plate inspection table according to claim 1, wherein Universal wheels are provided at the bottom of the workbench.

10. The 3A cover plate inspection table according to any one of claims 1-9, characterized in that, The upper plate (1), the lower plate (2), the top plate (3) and the back plate (5) are all made of black PVC plates.

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