LCD glass surface cleaning device

Abstract

The utility model relates to an LCD glass surface cleaning device which is mainly composed of a first conveying belt, a second conveying belt, an identification unit, a positioning platform, a glass positioner, a first mechanical arm, a cleaning unit, a second mechanical arm, a third mechanical arm and the like. Wherein the first conveying belt is divided into an upper area and a lower area, namely a first defective product conveying area and a second defective product conveying area, and the identification unit is located at the top of the first conveying belt and can identify whether to-be-detected LCD glass in different areas is clean or not. In addition, the positioning platform is arranged above the first conveying belt, and is provided with a glass positioner and a cleaning unit, so that the safety and the cleaning of the LCD glass can be ensured. The first manipulator is positioned on the right side of the first conveying belt and is responsible for transferring unclean LCD glass in a defective product conveying area into the glass positioner for cleaning treatment; and the second manipulator is arranged on the left side of the first conveying belt and is responsible for transferring the LCD glass in the glass positioner to a secondary defective product conveying area for secondary cleaning identification. Meanwhile, the second conveying belt is responsible for conveying waste LCD glass which cannot be cleaned, and the third manipulator is arranged below the first conveying belt and is responsible for transferring the waste LCD glass in the second defective product conveying area to the second conveying belt.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display processing, and particularly relates to an LCD glass surface cleaning device. Background Technique

[0002] With the progress of technology and the improvement of people's living standards, liquid crystal displays have become an indispensable part of modern life, and LCD screens are widely used in devices such as mobile phones, tablet computers, and televisions.

[0003] In the process of manufacturing liquid crystal displays (LCDs), surface cleaning is a very crucial step. Because if there is a layer of dust or other stains on the LCD screen, it will affect the image quality of the display. The main problems that need to be checked on the LCD glass surface are: dust, scratches, burrs, unevenness, ink, etc. According to the inspection of the LCD glass surface, defective products or rework are reduced.

[0004] Traditional cleaning methods include manual cleaning, air flow cleaning, etc., but they all have certain limitations. For example, manual cleaning has low efficiency, unstable cleaning quality, and is prone to generating static electricity. Although air flow cleaning has high efficiency, it may cause secondary pollution to the screen surface.

[0005] In such a background, it is particularly important to develop a device that can automatically and efficiently clean the LCD screen surface. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model provides an LCD glass surface cleaning device that can automatically identify whether the LCD glass surface is clean, can automatically clean the surface of the unclean LCD glass according to the recognition result, and through the reasonable design of the transmission route, can also perform secondary cleanliness identification on the cleaned LCD glass, and automatically select and transfer the LCD glass that fails the secondary cleanliness identification, greatly improving the LCD glass surface cleanliness identification efficiency.

[0007] The specific scheme is as follows:

[0008] An LCD glass surface cleaning device includes a first conveyor belt, a second conveyor belt, an identification unit, a positioning platform, a glass locator, a first manipulator, a cleaning unit, a second manipulator, and a third manipulator;

[0009] The first conveyor belt is used to transport the LCD glass to be detected. Taking the direction during use as the standard, the transmission direction of the first conveyor belt is set to the right, and the belt surface of the first conveyor belt is respectively set as a defective product transmission area and a secondary defective product transmission area in the upper and lower regions along the transmission direction;

[0010] The recognition unit is arranged on the top of the first conveyor belt, and the recognition unit is provided with a first recognition area and a second recognition area. The first recognition area corresponds to the first defective product transfer area and is used to recognize whether the LCD glass to be detected in the first defective product transfer area is clean. The second recognition area corresponds to the second defective product transfer area and is used to recognize whether the LCD glass to be detected in the second defective product transfer area is clean;

[0011] The positioning platform is arranged above the first conveyor belt and on the left side of the recognition unit; a plurality of glass positioners are arranged on the top of the positioning platform for placing LCD glass; the positioning platform is also provided with a cleaning unit for cleaning the LCD glass on the glass positioners;

[0012] The first manipulator is arranged above the first conveyor belt and on the right side of the positioning platform, and is used to transfer the unclean LCD glass recognized in the first recognition area into the glass positioner for cleaning;

[0013] The second manipulator is arranged above the first conveyor belt and on the left side of the positioning platform. The second manipulator is used to transfer the cleaned LCD glass in the glass positioner to the second defective product transfer area for secondary cleaning recognition;

[0014] The second conveyor belt is arranged below the right side of the first conveyor belt and is used to transport the waste LCD glass that cannot be cleaned cleanly;

[0015] The third manipulator is arranged below the first conveyor belt and on the left side of the second conveyor belt. The third manipulator is used to transfer the waste LCD glass recognized in the second recognition area to the second conveyor belt.

[0016] Further, a partition strip is arranged in the middle of the belt surface of the first conveyor belt along the conveying direction, and the first defective product transfer area and the second defective product transfer area are respectively arranged on the upper and lower sides of the partition strip.

[0017] Further, the recognition unit is provided with two AOI recognition devices, corresponding to the first recognition area and the second recognition area respectively.

[0018] Further, the recognition unit is provided with a green light recognition lamp and an L-shaped bracket. The L-shaped bracket is vertically arranged above the first conveyor belt. The AOI recognition device is arranged on the top plate of the L-shaped bracket, and the green light recognition lamp is arranged on the side of the top plate.

[0019] Further, the glass positioner is provided with a substrate, and the substrate is provided with a card slot, and the height of the card slot is lower than the height of the LCD glass.

[0020] Furthermore, a plurality of glass positioners are provided, and the glass positioners are arranged in an array on the top of the positioning platform.

[0021] Furthermore, the cleaning unit is provided with an electrostatic air gun and / or a scraper. The electrostatic air gun is used to blow away the surface impurities of the LCD glass, and the scraper is used to clean the upper surface of the LCD glass.

[0022] Furthermore, the cleaning unit is further provided with a partition board, which is isolated and installed between the glass positioner and the first conveyor belt to prevent the impurities cleaned by the cleaning unit from floating onto the first conveyor belt.

[0023] Furthermore, a telescopic device is installed through the partition board. The movable end of the telescopic device is provided with a scraper mounting bracket, and the bottom end of the scraper mounting bracket is switchably installed with a scraper. During operation, the telescopic device starts to extend, and the scraper can scrape the surface of the LCD glass.

[0024] Furthermore, the cleaning unit further includes a flame-type plasma cleaner for cleaning the upper surface of the LCD glass.

[0025] Beneficial effects:

[0026] The utility model is an innovative LCD glass surface cleaning device. This device adopts a multi-stage operation process and uses different types of manipulators and cleaning units to achieve a high-efficiency and automated cleaning process. This design makes full use of space, and each step has a dedicated manipulator responsible, ensuring the cleaning quality and reducing the possibility of human errors.

[0027] The utility model is a highly intelligent and automated LCD glass surface cleaning device, which can effectively improve the cleaning efficiency, reduce the labor cost, and ensure the cleaning quality. Description of the drawings

[0028] Figure 1 is a schematic plan view of the utility model;

[0029] Figure 2 is a schematic three-dimensional structure view of the AOI recognition device of the utility model;

[0030] Figure 3 is a schematic three-dimensional structure view of the glass positioner of the utility model;

[0031] Figure 4 is a schematic three-dimensional structure view of the partition board of the utility model.

[0032] Among them, 1 - the first conveyor belt, 2 - the second conveyor belt, 3 - the defective product transfer area, 4 - the secondary defective product transfer area, 5 - the identification unit, 51 - the L-shaped bracket, 52 - the AOI identification device, 53 - the green light identification lamp, 6 - the first manipulator, 7 - the positioning platform, 8 - the glass locator, 81 - the substrate, 82 - the card slot, 10 - the electrostatic air gun, 11 - the second manipulator, 12 - the third manipulator, 91 - the partition board, 92 - the telescopic device, 93 - the squeegee mounting bracket, 94 - the squeegee, 96 - the ion cleaner. Detailed implementation manners

[0033] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those of ordinary skill in the art should be able to understand other possible implementation manners and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0034] Now, the present invention will be further described in conjunction with the drawings and specific implementation manners.

[0035] Embodiment 1:

[0036] Embodiment 1 of the present invention provides an LCD glass surface cleaning device, including a first conveyor belt 1, a second conveyor belt 2, an identification unit 5, a positioning platform 7, a glass locator 8, a first manipulator 6, a cleaning unit, a second manipulator 11, and a third manipulator 12. Specifically:

[0037] The first conveyor belt 1 in Embodiment 1 of the present invention is used to transport the LCD glass to be detected. Taking the direction during use as a reference, the conveying direction of the first conveyor belt 1 is set to the right, and the belt surface of the first conveyor belt 1 is respectively set as the defective product transfer area 3 and the secondary defective product transfer area 4 in the upper and lower regions along the conveying direction.

[0038] As a preferred solution of the present invention, a partition strip is provided in the middle of the belt surface of the first conveyor belt 1 along the conveying direction, and the defective product transfer area 3 and the secondary defective product transfer area 4 are respectively arranged on the upper and lower sides of the partition strip.

[0039] The identification unit 5 in Embodiment 1 of the present invention is arranged on the top of the first conveyor belt 1, and the identification unit 5 is provided with a first identification area and a second identification area. The first identification area corresponds to the defective product transfer area 3 and is used to identify whether the LCD glass to be detected in the defective product transfer area 3 is clean. The second identification area corresponds to the secondary defective product transfer area 4 and is used to identify whether the LCD glass to be detected in the secondary defective product transfer area 4 is clean.

[0040] As a preferred embodiment of the present utility model, the recognition unit 5 is provided with two AOI recognition devices 52, corresponding to the first recognition area and the second recognition area respectively.

[0041] As a further preferred embodiment of the present utility model, the recognition unit 5 is provided with a green light recognition lamp 53 and an L-shaped bracket 51. The L-shaped bracket 51 is vertically arranged above the first conveyor belt 1. The AOI recognition device 52 is arranged on the top plate of the L-shaped bracket 51, and the green light recognition lamp 53 is arranged on the side of the top plate. The green light can make scratches, impurities, etc. on the LCD glass easier to be recognized by the AOI recognition device 52. During use, the green light emitted by the green light recognition lamp 53 can irradiate the first recognition area and the second recognition area, and the two AOI recognition devices 52 respectively realize the automatic recognition of cleanliness.

[0042] The positioning platform 7 of the first embodiment is arranged above the first conveyor belt 1, and the positioning platform 7 is arranged on the left side of the recognition unit 5; several glass positioners 8 are arranged on the top of the positioning platform 7 for placing LCD glass; the positioning platform 7 is further provided with a cleaning unit for cleaning the LCD glass on the glass positioner 8.

[0043] As a preferred embodiment of the present utility model, the glass positioner 8 is provided with a substrate 81, the substrate 81 is provided with a card slot 82, and the height of the card slot 82 is lower than the height of the LCD glass.

[0044] As another preferred embodiment of the present utility model, a plurality of glass positioners 8 are provided, and the glass positioners 8 are arranged in an array on the top of the positioning platform 7.

[0045] As a preferred embodiment of the present utility model, the cleaning unit is further provided with a partition plate 91. The partition plate 91 is installed between the glass positioner 8 and the first conveyor belt 1 in a separated manner to prevent impurities cleaned by the cleaning unit from floating to the first conveyor belt.

[0046] As a further preferred embodiment of the present utility model, a telescopic device 92 is installed through the partition plate 91. A scraper mounting bracket 93 is arranged at the movable end of the telescopic device 92, and a scraper 94 is switchably installed at the bottom end of the scraper mounting bracket. During operation, the telescopic device 92 is activated to extend, and the scraper 94 can scrape the surface of the LCD glass.

[0047] The first manipulator 6 of the first embodiment is arranged above the first conveyor belt 1, and the first manipulator 6 is arranged on the right side of the positioning platform 7 for transferring the unclean LCD glass recognized in the first recognition area into the glass positioner 8 for cleaning treatment.

[0048] The second manipulator 11 of the first embodiment is arranged above the first conveyor belt 1, and the second manipulator 11 is arranged on the left side of the positioning platform 7. The second manipulator 11 is used to transfer the cleaned LCD glass in the glass positioner 8 to the defective product transfer area 4 of the first conveyor belt 1 and convey it to the second identification area for secondary cleaning and identification.

[0049] The second conveyor belt 2 of the first embodiment is arranged below the right side of the first conveyor belt 1 and is used to convey the defective LCD glass that cannot be cleaned cleanly identified by the second identification area.

[0050] The third manipulator 12 of the first embodiment is arranged below the first conveyor belt 1, and the third manipulator 12 is arranged on the left side of the second conveyor belt 2. The third manipulator 12 is used to transfer the defective LCD glass identified in the second identification area to the second conveyor belt 2.

[0051] The working principle of the present utility model:

[0052] In the specific operation of the first embodiment, first, the LCD glass to be tested is placed in the defective product transfer area 3 of the first conveyor belt 1. With the transmission, the LCD glass moves to the first identification area below the identification unit 5. After being identified and judged by the identification unit 5, if the surface of the LCD glass is not clean, the first manipulator 6 is activated to transfer the unclean LCD glass into the glass positioner 8, and the unclean LCD glass is cleaned by the cleaning unit.

[0053] After the cleaning process, the second manipulator 11 transfers the LCD glass to the defective product transfer area 4 of the first conveyor belt 1 again. When it reaches the second identification area, the identification unit 5 makes a secondary identification and judgment. If the cleanliness requirement is met, it normally passes through the second identification area. If not, it is determined as a defective product. At this time, the third manipulator 12 transfers the defective product to the second conveyor belt 2 for output.

[0054] As an optimization of the above solution, multiple glass positioners 8 can be set on the positioning platform 7. Similarly, the cleaning area of the cleaning unit covers all the glass positioners 8. The advantage of this design is that continuous cleanliness screening can be achieved without stopping the first conveyor belt 1.

[0055] Embodiment 2:

[0056] The technical solution of the second embodiment is basically the same as that of the first embodiment. The difference is that the cleaning unit of the second embodiment is provided with an electrostatic air gun 10, and the blowing area of the electrostatic air gun 10 can cover the upper surface of the LCD glass to blow away the surface impurities of the LCD glass.

[0057] Embodiment 3:

[0058] The technical solution of this Embodiment 3 is basically the same as that of Embodiment 1. The difference is that the cleaning unit of this Embodiment 3 is provided with a squeegee for cleaning the upper surface of the LCD glass.

[0059] Embodiment 4:

[0060] The technical solution of this Embodiment 4 is basically the same as that of Embodiment 1. The difference is that the cleaning unit of this Embodiment 4 is provided with an electrostatic air gun 10 and a squeegee. The electrostatic air gun 10 is used to blow away the surface impurities of the LCD glass, and the squeegee is used to clean the upper surface of the LCD glass.

[0061] Embodiment 5:

[0062] The technical solution of this Embodiment 5 is basically the same as that of Embodiment 4. The difference is that the cleaning unit of this Embodiment 5 is further provided with a flame-type plasma cleaner 96 for cleaning the upper surface of the LCD glass. During use, the preliminary blowing is first completed by the electrostatic air gun 10, then the secondary combustion cleaning is carried out by the flame-type plasma cleaner 96, and finally the cleaning is completed by the squeegee 94.

[0063] Although the present invention has been specifically shown and described in connection with the preferred embodiments, those skilled in the art should understand that various changes can be made to the present invention in form and detail without departing from the spirit and scope of the present invention defined by the appended claims, and all such changes are within the protection scope of the present invention.

Claims

1. An LCD glass surface cleaning device, characterized in that: It includes a first conveyor belt, a second conveyor belt, an identification unit, a positioning platform, a glass positioner, a first manipulator, a cleaning unit, a second manipulator, and a third manipulator; The first conveyor belt is used to transport the LCD glass to be tested. The conveying direction of the first conveyor belt is set to the right side based on the direction when in use. The belt surface of the first conveyor belt is respectively set as a primary product conveying area and a secondary product conveying area in the upper and lower areas along the conveying direction. The identification unit is arranged on the top of the first conveyor belt, and the identification unit is provided with a first identification area and a second identification area, the first identification area corresponds to the primary product conveying area, and is used to identify whether the LCD glass to be inspected in the primary product conveying area is clean, and the second identification area corresponds to the secondary product conveying area, and is used to identify whether the LCD glass to be inspected in the secondary product conveying area is clean; The positioning platform is arranged above the first conveyor belt, and the positioning platform is arranged on the left side of the identification unit; a plurality of glass positioners are arranged on the top of the positioning platform for placing LCD glass; the positioning platform is also provided with a cleaning unit for cleaning the LCD glass on the glass positioner; The first robot is disposed above the first conveyor belt and on the right side of the positioning platform, and is used to transfer the unclean LCD glass identified in the first identification area to the glass positioner for cleaning; The second robot is disposed above the first conveyor belt and on the left side of the positioning platform, and the second robot is used to transfer the cleaned LCD glass in the glass positioner to the secondary product conveying area for secondary cleaning identification; The second conveyor belt is arranged below the right side of the first conveyor belt and is used to transport waste LCD glass that cannot be cleaned; The third robot is arranged below the first conveyor belt and on the left side of the second conveyor belt, and is used to transfer the waste LCD glass identified in the second identification area to the second conveyor belt.

2. The LCD glass surface cleaning device according to claim 1, characterized in that: A dividing strip is provided in the middle of the belt surface of the first conveyor belt along the conveying direction, and the primary product conveying area and the secondary product conveying area are respectively arranged on the upper and lower sides of the dividing strip.

3. The LCD glass surface cleaning device according to claim 1, characterized in that: The identification unit is provided with two AOI identification devices, corresponding to the first identification area and the second identification area respectively.

4. The LCD glass surface cleaning device according to claim 3, characterized in that: The identification unit is also provided with a green light identification lamp and an L-shaped bracket. The L-shaped bracket is vertically arranged above the first conveyor belt. The AOI identification device is arranged on the top plate of the L-shaped bracket. The green light identification lamp is arranged on the side of the top plate.

5. The LCD glass surface cleaning device according to claim 1, characterized in that: The glass positioner is provided with a substrate, the substrate is provided with a card slot, and the height of the card slot is lower than the height of the LCD glass, so as to facilitate the taking and placing of the LCD glass.

6. The LCD glass surface cleaning device according to claim 1, characterized in that: There are a plurality of glass positioners, and the plurality of glass positioners are arranged in an array on the top of the positioning platform.

7. The LCD glass surface cleaning device according to claim 1, characterized in that: The cleaning unit is further provided with an isolation plate, which is installed between the glass positioner and the first conveyor belt to prevent impurities cleaned by the cleaning unit from floating to the first conveyor belt.

8. The LCD glass surface cleaning device according to claim 7, characterized in that: A telescopic device is installed through the isolation plate, and a scraper mounting frame is provided at the movable end thereof. A scraper is switchably installed at the bottom end of the scraper mounting frame. When working, the telescopic device starts to extend, and the scraper can scrape the LCD glass surface.

9. The LCD glass surface cleaning device according to claim 1, characterized in that: The cleaning unit is provided with an electrostatic air gun and / or a scraper. The electrostatic air gun is used to blow away surface impurities on the LCD glass, and the scraper is used to clean the upper surface of the LCD glass.

10. The LCD glass surface cleaning device according to claim 9, characterized in that: The cleaning unit is also provided with a flame plasma cleaning machine for cleaning the upper surface of the LCD glass.

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