A liquid crystal panel cleaning device based on pollution area identification and zoned multi-stage spraying

Abstract

The utility model relates to liquid crystal panel manufacturing equipment technical field discloses a kind of liquid crystal panel cleaning device based on pollution area identification and zoned multistage spraying, including cleaning operation platform, the protective channel of setting in the right side of cleaning operation platform and the CCD camera of embedding in the side of protective channel;The upper surface of the protective channel is fixed with the fixed box for placing main control single-chip, the upper side of the cleaning operation platform is provided with cleaning mechanism.The utility model is improved to zoned dynamic control from traditional global uniform shower, precision matching pollution degree, avoid the waste of resources, adjustable cleaning agent proportioning and spraying water pressure can realize better cleaning effect, CCD camera cooperates image recognition system and can realize the distinction of different pollution degree and the precision matching of corresponding cleaning parameter, improve the cleaning efficiency of substrate, and the visualization module and dynamic adjustment response module greatly improve the automation level of cleaning program in production process.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal panel manufacturing equipment technology, specifically to a liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying in zones. Background Technology

[0002] In the manufacturing process of LCD displays, cleaning the glass substrate is a key step to ensure product yield and display quality. Current glass substrate cleaning processes mainly include high-pressure spraying and air knife drying technology to remove contaminants such as surface particles, organic matter, and metal ions. In order to meet the manufacturing requirements of high-precision panels and avoid the adverse effects of dust and impurities, there are strict requirements for the cleanliness of the glass substrate surface.

[0003] A search revealed Chinese patent CN217191480U, which discloses a cleaning device for liquid crystal display panels. The device features a support spring inside the cleaning frame to support a tray, providing cushioning and improving protection of the glass substrate. A rotating block is rotatably connected to a column, and the support device allows the entire cleaning frame to be tilted, facilitating water flow away from the glass substrate surface and removing impurities, thus improving the cleaning effect and meeting usage requirements.

[0004] The design of the traditional cleaning device in the above-mentioned utility model is the same as that of the existing technical solution. It not only lacks the ability to distinguish between areas with different levels of contamination on the same substrate, but also cannot adopt different cleaning schemes for areas with different levels of contamination. Therefore, it is difficult to effectively remove contaminants. The cleaning time is longer for large-size substrates. At the same time, the bending deformation that is prone to occur on large-size substrates increases the risk of contamination transmission. Based on this, a liquid crystal panel cleaning device based on contamination area identification and multi-level spraying in zones is proposed to solve the above problems. Utility Model Content

[0005] Based on the above description, this utility model provides a liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying in zones, in order to solve the problems of traditional cleaning devices not being able to distinguish areas with different levels of contamination on the same substrate, and not being able to adopt different cleaning schemes for areas with different levels of contamination. Therefore, it is difficult to effectively remove contaminants, and the cleaning time for large-size substrates is longer. At the same time, the bending deformation that is prone to occur on large-size substrates increases the risk of transmission of contaminants.

[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A liquid crystal panel cleaning device based on pollution area identification and multi-level spraying in zones, including a cleaning operation table, a protective channel set on the right side of the cleaning operation table, and a CCD camera embedded on one side of the protective channel.

[0007] The upper surface of the protective channel is fixed with a fixing box for placing the main control microcontroller, the upper side of the cleaning operation table is provided with a cleaning mechanism for zoned control of the spray, and the inner side wall of the cleaning operation table is provided with a support mechanism for placing the LCD panel.

[0008] The cleaning mechanism includes a top plate set on the upper side of the cleaning operation table, a hollow plate fixed to the lower surface of the top plate, multiple spray unit blocks fixed to the lower surface of the hollow plate, and spray components set in the spray unit blocks.

[0009] Through the above technical solutions, the traditional uniform spraying across the entire area is improved to dynamic control in different zones, accurately matching the degree of contamination and avoiding waste of resources. Adjustable detergent ratios and spray water pressure can achieve better cleaning results. The CCD camera, combined with the image recognition system, can distinguish different levels of contamination and accurately match the corresponding cleaning parameters, improving the cleaning efficiency of the substrate. Furthermore, the visualization module and dynamic adjustment response module greatly improve the automation level of the cleaning process during production, helping to save production costs for enterprises.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] Furthermore, four load-bearing frames are fixed between the cleaning operation table and the side opposite to the top plate. The inner cavity of the four load-bearing frames is embedded with transparent plastic plates, and the transparent plastic plates on the front and back sides are hinged to the load-bearing frames through door hinges.

[0012] The above technical solution allows staff to easily observe the cleaning process of the LCD panel by setting up a transparent glass plate, and the door hinges facilitate the placement and removal of the LCD panel.

[0013] Furthermore, the protective channel has an inverted L-shaped cross-section, and a connection port for connecting pipes is provided at the bottom of one side of the protective channel.

[0014] The protective passage is equipped with a main pipeline for cleaning agents and a main pipeline for ultrapure water.

[0015] The above technical solution provides basic protection for the main cleaning agent pipeline and the ultrapure water pipeline, thus protecting the service life of both pipelines.

[0016] Furthermore, the spraying component includes a mixing cylinder disposed within the spraying unit block, two piezoelectric ceramic valves fixed on both sides of the mixing cylinder, a cleaning agent branch pipe and an ultrapure water branch pipe connected to the other end of the two piezoelectric ceramic valves, and a nozzle connected to the lower surface of the mixing cylinder.

[0017] With the above technical solution, each spray unit corresponds to a grid area. The control system adjusts the cleaning agent concentration by controlling the opening ratio of two piezoelectric ceramic valves, and adjusts the water pressure of the spray unit by controlling the total opening of the two piezoelectric ceramic valves.

[0018] Furthermore, the other ends of the cleaning agent branch pipe and the ultrapure water branch pipe are respectively connected to the cleaning agent main pipeline and the ultrapure water main pipeline.

[0019] By connecting the other ends of the cleaning agent branch pipe and the ultrapure water branch pipe to the main cleaning agent pipeline and the main ultrapure water pipeline, the water and cleaning agent in the main cleaning agent pipeline and the main ultrapure water pipeline can be guided by the pipeline and enter the mixing cylinder through the two branch pipes for mixing.

[0020] Furthermore, the support mechanism includes a square support frame fixed to the inner wall of the cleaning workbench, a support mesh plate for supporting the LCD panel, and a water outlet hole opened at the bottom of the inner wall of the cleaning workbench.

[0021] Through the above technical solution, the square support frame can be used to support the support mesh plate in the cleaning operation table, and the water and impurities flowing down through the support mesh plate can flow out through the water outlet.

[0022] Furthermore, handles are fixed at both ends of the upper surface of the square support frame, and the size of the square support frame is adapted to the size of the inner cavity of the cleaning operating table.

[0023] The above technical solution allows staff to easily remove and replace the damaged square support frame.

[0024] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0025] The traditional uniform spraying method has been improved to dynamic zone control, which precisely matches the degree of contamination and avoids waste of resources. Adjustable detergent ratio and spray water pressure can achieve better cleaning results. The CCD camera and image recognition system can distinguish different levels of contamination and accurately match the corresponding cleaning parameters, which improves the cleaning efficiency of the substrate. Furthermore, the visualization module and dynamic adjustment response module greatly improve the automation level of the cleaning process during production, which helps to save production costs for enterprises. Attached Figure Description

[0026] Figure 1 A schematic diagram of the overall structure of a liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying in zones, provided for an embodiment of this utility model;

[0027] Figure 2 This is a schematic diagram of a CCD camera according to an embodiment of the present invention;

[0028] Figure 3 This is a bottom view schematic diagram of the cleaning mechanism according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the mixing cylinder and piezoelectric ceramic valve according to an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the support mechanism in an embodiment of the present utility model;

[0031] Figure 6 This is a schematic diagram of the square support frame according to an embodiment of the present invention.

[0032] Attached reference numerals: 1. Cleaning workbench; 2. Protective passageway; 3. Fixing box;

[0033] 4. Cleaning mechanism; 41. Top plate; 42. Hollow plate; 43. Spray unit block; 44. Mixing cylinder; 45. Piezoelectric ceramic valve; 46. Cleaning agent branch pipe; 47. Ultrapure water branch pipe; 48. Spray nozzle;

[0034] 5. Support mechanism; 51. Square support frame; 52. Support mesh plate; 53. Water outlet; 54. Handle;

[0035] 6. CCD camera. Detailed Implementation

[0036] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0038] Example: Reference Figure 1 and Figure 2 A liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying in zones includes a cleaning operation table 1, a protective channel 2 located on the right side of the cleaning operation table 1, and a CCD camera 6 embedded in one side of the protective channel 2; a fixing box 3 for placing a main control microcontroller is fixed on the upper surface of the protective channel 2, a cleaning mechanism 4 for zoned spraying is provided on the upper side of the cleaning operation table 1, and a support mechanism 5 for placing the liquid crystal panel is provided on the inner side wall of the cleaning operation table 1.

[0039] Among them, four load-bearing frames are fixed between the cleaning operation table 1 and the top plate 41 on the opposite side. The inner cavity of the four load-bearing frames is embedded with transparent plastic plates, and the transparent plastic plates on the front and rear sides are connected to the load-bearing frames by door hinges. The transparent plastic plates make it easy for staff to observe the spray cleaning process of the LCD panel. At the same time, if the support mesh plate 52 is damaged by the spray head for a long time, the damaged support mesh plate 52 can be removed and replaced by opening the transparent plastic plates.

[0040] In this embodiment, the protective channel 2 has an inverted L-shaped cross-section, and a connection port for connecting pipes is provided at the bottom of one side of the protective channel 2; the protective channel 2 is equipped with a cleaning agent main pipe and an ultrapure water main pipe, and the protective channel 2 is made of stainless steel that is resistant to acid and alkali corrosion.

[0041] It should be noted that a main control microcontroller is placed inside the cavity of the fixed box 3. The main control microcontroller is powered by the power supply of the operating table after conversion. The operating table is connected to the fixed box 3 via a cable to realize the transmission of power and control signals. One end is connected to the signal input section, namely the CCD camera 6 module, which is responsible for receiving the results of classifying the degree of pollution in different areas through image recognition. The other end is connected to the signal output section, which provides the required cleaning agent concentration and water pressure for each area based on the recognition results of the recognition module, and executes the corresponding program by controlling the piezoelectric ceramic valve 45.

[0042] When the glass substrate enters the cleaning workbench 1, the CCD camera 6 takes pictures of the LCD panel to be cleaned and then outputs the pollution level of the corresponding area through the algorithm module. After receiving the data, the main control microcontroller starts to analyze the data and determines the cleaning parameters of the cleaning program to be executed in the corresponding area according to the pollution level of the corresponding area, and dynamically adjusts the water pressure and cleaning agent ratio of the corresponding nozzles 48 in each area.

[0043] refer to Figure 3 and Figure 4 The cleaning mechanism 4 includes a top plate 41 disposed on the upper side of the cleaning operating table 1, a hollow plate 42 fixed to the lower surface of the top plate 41, a plurality of spray unit blocks 43 fixed to the lower surface of the hollow plate 42, and spray components disposed in the spray unit blocks 43.

[0044] The spraying component includes a mixing cylinder 44 disposed within the spraying unit block 43, two piezoelectric ceramic valves 45 fixed on both sides of the mixing cylinder 44, a cleaning agent branch pipe 46 and an ultrapure water branch pipe 47 connected to the other end of the two piezoelectric ceramic valves 45, and a nozzle 48 connected to the lower surface of the mixing cylinder 44.

[0045] In this embodiment, the other ends of the cleaning agent branch pipe 46 and the ultrapure water branch pipe 47 are connected to the cleaning agent main pipe and the ultrapure water main pipe, respectively.

[0046] In use, the externally transported ultrapure water pipeline and the cleaning agent pipeline are connected to the ultrapure water pipeline and the main cleaning agent pipeline respectively through the connection port. Ultrapure water and cleaning agent can enter the inner cavity of the mixing cylinder 44 through the pipeline. The two piezoelectric ceramic valves 45 are adjusted by adjusting their opening ratio under the control of the main control microcontroller to adjust the concentration of the cleaning agent, and the total opening of the two piezoelectric ceramic valves 45 is controlled to adjust the water pressure of ultrapure water. The cleaning agent and ultrapure water entering the inner cavity of the mixing cylinder 44 can be mixed, and then sprayed out through the nozzle 48 to the designated area on the LCD panel for spraying.

[0047] refer to Figure 5 and Figure 6 The support mechanism 5 includes a square support frame 51 fixed to the inner wall of the cleaning workbench 1, a support mesh plate 52 for supporting the LCD panel, and a water outlet 53 opened at the bottom of the inner wall of the cleaning workbench 1. The water outlet 53 is inclined to facilitate the outflow of sewage.

[0048] Handles 54 are fixed to both the left and right ends of the upper surface of the square support frame 51. The size of the square support frame 51 is adapted to the size of the inner cavity of the cleaning operation table 1. The surface of the support mesh plate 52 is coated with a silicon carbide wear-resistant layer to avoid scratches on the surface of the LCD panel.

[0049] It should be noted that the square support frame 51 can position and support the vertical position of the support mesh plate 52 in the cleaning operation table 1 when the support mesh plate 52 enters the cleaning operation table 1. When the LCD panel is placed on the support mesh plate 52, the spray water can flow down through the holes on the support mesh plate 52 and then flow out through the water outlet 53.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying in zones, comprising a cleaning operation table (1), a protective channel (2) disposed on the right side of the cleaning operation table (1), and a CCD camera (6) embedded in one side of the protective channel (2). Its features are, The upper surface of the protective channel (2) is fixed with a fixing box (3) for placing the main control microcontroller, and the upper side of the cleaning operation table (1) is provided with a cleaning mechanism (4) for zoned control of spraying, and the inner side wall of the cleaning operation table (1) is provided with a support mechanism (5) for placing the liquid crystal panel. The cleaning mechanism (4) includes a top plate (41) set on the upper side of the cleaning operating table (1), a hollow plate (42) fixed on the lower surface of the top plate (41), a plurality of spray unit blocks (43) fixed on the lower surface of the hollow plate (42), and spray components set in the spray unit blocks (43).

2. The liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying according to claim 1, characterized in that, Four load-bearing frames are fixed between the cleaning operation table (1) and the top plate (41) on the opposite side. The inner cavity of the four load-bearing frames is inlaid with transparent plastic plates, and the transparent plastic plates on the front and rear sides are connected to the load-bearing frames by door hinges.

3. The liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying according to claim 1, characterized in that, The protective channel (2) has an inverted L-shaped cross section, and a connection port for connecting pipes is provided at the bottom of one side of the protective channel (2). The protective channel (2) is equipped with a main cleaning agent pipeline and an ultrapure water pipeline.

4. The liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying according to claim 1, characterized in that, The spraying component includes a mixing cylinder (44) disposed in the spraying unit block (43), two piezoelectric ceramic valves (45) fixed on both sides of the mixing cylinder (44), a cleaning agent branch pipe (46) and an ultrapure water branch pipe (47) connected to the other end of the two piezoelectric ceramic valves (45), and a nozzle (48) connected to the lower surface of the mixing cylinder (44).

5. The liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying according to claim 4, characterized in that, The other ends of the cleaning agent branch pipe (46) and the ultrapure water branch pipe (47) are respectively connected to the cleaning agent main pipe and the ultrapure water main pipe.

6. The liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying according to claim 1, characterized in that, The support mechanism (5) includes a square support frame (51) fixed to the inner wall of the cleaning workbench (1), a support mesh plate (52) for supporting the liquid crystal panel, and a water outlet (53) opened at the bottom of the inner wall of the cleaning workbench (1).

7. The liquid crystal panel cleaning device based on contaminated area identification and multi-level spraying according to claim 6, characterized in that, The square support frame (51) has handles (54) fixed at both ends of its upper surface. The size of the square support frame (51) is adapted to the size of the inner cavity of the cleaning workbench (1).

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