LCD substrate cleaning mechanism

Abstract

The utility model discloses an LCD substrate cleaning mechanism which comprises a machine body, the machine body is of a hollow cuboid structure, a conveying wheel assembly used for conveying a glass substrate is arranged in the machine body, and the conveying wheel assembly conveys the glass substrate from the head end of the machine body to the tail end of the machine body at a certain speed. The interior of the machine body is sequentially divided into a feeding unit, a first spray washing unit, a first scraping washing unit, a second scraping washing unit, a second spray washing unit and a drying unit through corresponding partition plates from the head end to the tail end. The first spray-washing unit, the first scraping-washing unit, the second scraping-washing unit and the second spray-washing unit are each internally provided with a spray-washing device for spraying cleaning liquid to the conveying wheel assembly, and scraping-brushing devices are detachably arranged in the first scraping-washing unit and the second scraping-washing unit and used for scraping and brushing the conveyed glass substrates; and the glass substrate is subjected to quadruple cleaning or scraping cleaning, so that the cleaning effect is improved while the medicine of the cleaning agent is not easy to remain.

Description

Technical Field

[0001] This utility model relates to the field of display processing and manufacturing equipment technology, specifically an LCD substrate cleaning mechanism. Background Technology

[0002] In OLED automated production lines, one of the process steps requires cleaning the LCD substrate. Usually, cleaning equipment is used to rinse and clean the surface of the substrate, which is typically a glass substrate. However, the current glass substrate cleaning process is too simple. Most of the time, the glass substrate is fed into a conveyor belt, rinsed with pure water, and then output, thus completing the entire cleaning process. In addition, brushes are used to scrub the surface of the glass substrate during the cleaning process.

[0003] However, current glass substrate cleaning processes have some shortcomings in practical use, making the cleaning process cumbersome or the cleaning effect poor: First, existing technical solutions involve too few glass substrate cleaning steps, resulting in insufficient cleaning or residue of cleaning agents used in the cleaning process; Second, the most important step in cleaning is brush cleaning, and existing brushes typically rotate to repeatedly scrape the same area, which is inefficient; Third, existing brushes will collapse after prolonged use, requiring adjustment of the distance between the upper and lower brushes to maintain the scraping force. Adjusting the distance between the upper and lower brushes can also accommodate glass substrates of different thicknesses.

[0004] Therefore, it is necessary to develop an LCD substrate cleaning mechanism to improve the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of this invention is to provide an LCD substrate cleaning mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An LCD substrate cleaning mechanism includes a main body, which is a hollow cuboid structure and has a conveyor wheel assembly for transporting glass substrates inside. The conveyor wheel assembly transports the glass substrates from the front end of the main body to the rear end of the main body at a certain speed. The main body is characterized by being divided into a feeding unit, a first spray washing unit, a first scraping washing unit, a second scraping washing unit, a second spray washing unit, and a drying unit from the front end to the rear end by corresponding partitions. Each of the first spray washing unit, the first scraping washing unit, the second scraping washing unit, and the second spray washing unit is equipped with a spray washing device for spraying cleaning fluid onto the conveyor wheel assembly. Each of the first and second scraping washing units is detachably equipped with a scraping brush device for scraping the transported glass substrates.

[0008] Preferably, the drying unit is provided with several dryers that blow hot air onto the conveyor wheel assembly, and the dryers are used to dry the cleaned glass substrate.

[0009] Preferably, the scraping device includes two oppositely arranged fixed mounting plates, and a plurality of conveying rollers and brush rollers rotatably mounted between the fixed mounting plates. The conveying rollers and brush rollers are respectively driven to a first driving device and a second driving device. The scraping device also includes two oppositely arranged movable mounting plates. Correspondingly, a plurality of conveying rollers and brush rollers rotatably mounted between the movable mounting plates are also driven to corresponding driving devices. The movable mounting plates, conveying rollers, and brush rollers are integrally slidably mounted to the fixed mounting plates. The distance between the conveying rollers and brush rollers on the movable mounting plates and the conveying rollers and brush rollers on the fixed mounting plates can be adjusted through the movable mounting plates.

[0010] Preferably, the scraping device further includes a guide body fixedly mounted on the fixed mounting plate, the guide body forming an elongated sliding hole, the movable mounting plate being slidably mounted in the elongated sliding hole, the movable mounting plate being able to slide in the elongated sliding hole to adjust the distance between the conveying roller and brush roller on the movable mounting plate and the conveying roller and brush roller on the fixed mounting plate.

[0011] Preferably, the scraping device further includes a first connecting slide body fixedly connected to the movable mounting plate. The first connecting slide body and the second connecting slide body are slidably connected via a screw body. An elastic element fitted onto the screw body is provided between the first connecting slide body and the second connecting slide body. An adjusting nut is threadedly connected to the tail end of the screw body. The second connecting slide body is threadedly connected to a lead screw motor. The lead screw end of the lead screw motor is rotatably connected to a lead screw connecting body fixed to the guide body. Controlling the lead screw motor can adjust the distance between the conveyor roller and brush roller on the movable mounting plate and the conveyor roller and brush roller on the fixed mounting plate.

[0012] Preferably, the brush roller includes a rotating shaft that is driven to the second drive device, the outer surface of the rotating shaft is integrally formed into a cylindrical rotating body, and the cylindrical surface of the cylindrical rotating body forms a spiral brush.

[0013] Preferably, the spiral brush includes a first-direction spiral brush that spirals from the middle of the cylindrical surface of the rotating cylindrical body toward one end in a positive direction, and a second-direction spiral brush that spirals from the middle of the cylindrical surface of the rotating cylindrical body toward the other end in a negative direction.

[0014] Preferably, the top surface of the machine body is slidably provided with a sliding cover plate to prevent the sprayed cleaning liquid from spilling out of the machine body.

[0015] Preferably, the bottom surface of the fuselage body is provided with evenly distributed support members.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model automatically transports the glass substrate through a conveyor wheel assembly. The glass substrate flows through the first spray washing unit, the first scraping washing unit, the second scraping washing unit, and the second spray washing unit for four-stage cleaning or scraping. The first two stages are cleaning with cleaning agents, and the last two stages are cleaning with pure water, which not only ensures that the cleaning agent leaves no residue but also improves the cleaning effect.

[0018] 2. This utility model uses a scraping device in the first and second scraping units to scrape and clean the glass substrate. The distance between the conveying roller and brush roller on the movable mounting plate and the conveying roller and brush roller on the fixed mounting plate can be adjusted by controlling the screw motor, so as to meet the scraping and cleaning needs of glass substrates of different thicknesses. At the same time, the surface of the brush roller is a spiral brush, which has a side-scraping effect when scraping the glass substrate, eliminating the uneven effect of repeated scraping of the same position by the brush roller and improving the cleaning effect. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention from a first-person perspective;

[0020] Figure 2 This is a top view of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the scraping device in this utility model from a second perspective.

[0022] Figure 4 for Figure 3 A magnified view of part A in the image;

[0023] Figure 5 This is a right view of the scraping device in this utility model;

[0024] Figure 6This is a front view of the scraper device in this utility model;

[0025] Figure 7 This is a right-side sectional view of the scraping device in this utility model;

[0026] Figure 8 This is a three-dimensional structural schematic diagram of another embodiment of the brush roller in the scraping device.

[0027] In the diagram: 1-Main body; 2-Conveyor wheel assembly; 3-Baffle; 4-Spraying device; 5-Scraping device; 51-Fixed mounting plate; 52-Conveying roller; 521-First drive device; 53-Brush roller; 531-Rotating shaft; 532-Cylindrical rotating body; 533-Spiral brush; 5331-First direction spiral brush; 5332-Second direction spiral brush; 534-Second drive device; 54-Modible mounting plate; 55-Guide body; 5 6-First connecting slide body; 57-Second connecting slide body; 58-Screw rotating body; 59-Lead screw motor; 510-Elastic element; 511-Adjusting nut; 512-Lead screw connector; 6-Dryer; 7-Baffle; 8-Supporting element; 9-Glass substrate; 101-Feeding unit; 102-First spray washing unit; 103-First scraping washing unit; 104-Second scraping washing unit; 105-Second spray washing unit; 106-Drying unit. Detailed Implementation

[0028] 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.

[0029] like Figure 1 , Figure 2 and Figure 7 As shown, this utility model is an LCD substrate cleaning mechanism. This LCD substrate cleaning mechanism is used to clean and dry glass substrates 9 for the next process. Specifically, it includes a machine body 1, which is a hollow cuboid structure and has a conveyor wheel assembly 2 for conveying the glass substrates 9 inside. The conveyor wheel assembly 2 consists of a rotating shaft that is driven to a corresponding drive motor and a conveyor wheel that is coaxially and integrally disposed in the rotating shaft. By controlling the corresponding drive motor, the conveyor wheel is rotated to transport the glass substrates 9 placed on it. Therefore, the conveyor wheel assembly 2 realizes the transportation of the glass substrates 9 from the head end of the machine body 1 to the tail end of the machine body 1 at a certain speed.

[0030] Furthermore, the machine body 1 is divided into a feeding unit 101, a first spray washing unit 102, a first scraping washing unit 103, a second scraping washing unit 104, a second spray washing unit 105, and a drying unit 106 from the head end to the tail end by corresponding partitions 3. The bottom surface of the partitions 3 is higher than the conveyor wheel assembly 2 so that the glass substrate 9 can be transported through. Each unit completes the complete cleaning process of the glass substrate 9 in sequence. Specifically, the feeding unit 101 is used to place the glass substrate 9 onto the conveyor wheel assembly 2 for feeding, and then it is conveyed to the first spray washing unit 102 for cleaning with cleaning agent spray. The cleaning agent is usually a liquid that can dissolve contaminants on the glass substrate 9. Then it passes through the first scraping washing unit 103 for cleaning while being sprayed, and then through the second scraping washing unit 104 for scraping with pure water to remove residual cleaning agent. Then it passes through the second spray washing unit 105 for spray washing to obtain a clean glass substrate 9. Finally, it passes through the drying unit 106 to remove the moisture on the surface of the glass substrate 9. As can be easily seen from the above cleaning process, the first spray washing unit 102, the first scraping washing unit 103, the second scraping washing unit 104, and the second spray washing unit 105 are all equipped with a spray washing device 4 for spraying cleaning liquid onto the conveyor wheel assembly 2. Preferably, the spray washing device 4 is provided above and below the conveyor wheel assembly 2, and spray washing is performed on both the front and back surfaces of the glass substrate 9 at the same time. The first scraping washing unit 103 and the second scraping washing unit 104 are detachably equipped with a scraping brush device 5. The scraping brush device 5 is used to scrape the glass substrate 9 that is conveyed. The contaminants on the glass substrate 9 are more easily scraped off by the physical scraping of the scraping brush device 5, which improves the cleaning effect. Therefore, the scraping brush device 5 is an important component of the cleaning process, and the detachable design makes maintenance, repair, or replacement convenient.

[0031] Specifically, the scraping device 5 is further optimized so that it can be adjusted to adapt to glass substrates 9 of different thicknesses. The specific structure is as follows: Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the scraping device 5 includes two opposing fixed mounting plates 51, a plurality of conveying rollers 52 and brush rollers 53 rotatably mounted between the fixed mounting plates 51, as follows: Figure 7 As shown, in a preferred embodiment, the conveyor rollers 52 and brush rollers 53 are specifically distributed as follows: there are six conveyor rollers 52 and two brush rollers 53, one of which is located after the second conveyor roller 52 and the other is located after the fifth conveyor roller 52; furthermore, the conveyor rollers 52 and brush rollers 53 are respectively driven to the first drive device 521 and the second drive device 534, and the first drive device 521 and the second drive device 534 independently control the conveyor rollers 52 and the brush rollers 53, especially the second drive device 534 can control the direction of the brush rollers 53, and can control the direction of the brush rollers 53 as needed.

[0032] The scraping device 5 is further optimized by including two opposing movable mounting plates 54. Correspondingly, several conveying rollers 52 and brush rollers 53, which are rotatably connected to corresponding drive devices, are also rotatably arranged between the movable mounting plates 54. These conveying rollers 52 and brush rollers 53 are also rotatably connected to corresponding drive devices integrally mounted on the movable mounting plates 54. Figure 7 As shown, the conveying roller 52 and brush roller 53 on the movable mounting plate 54 correspond to those on the fixed mounting plate 51. The movable mounting plate 54, the conveying roller 52 and the brush roller 53 are integrally slidably mounted on the fixed mounting plate 51. The position of the movable mounting plate 54 can be adjusted, thereby adjusting the distance between the conveying roller 52 and the brush roller 53 on it and the conveying roller 52 and the brush roller 53 on the fixed mounting plate 51.

[0033] Furthermore, specific optimizations were made to the integral sliding mounting of the movable mounting plate 54, the conveying roller 52, and the brush roller 53 onto the fixed mounting plate 51, such as... Figure 3 and Figure 5 As shown, the scraping device 5 also includes a guide body 55 fixedly mounted on the fixed mounting plate 51. The guide body 55 forms an elongated sliding hole. The movable mounting plate 54 is slidably mounted in the elongated sliding hole. In this embodiment, the movable mounting plate 54 can slide and adjust its position in the elongated sliding hole. The sliding in this embodiment is a damped sliding, so that the movable mounting plate 54 can be locked in any position in the elongated sliding hole, so as to adjust the distance between the conveying roller 52 and the brush roller 53 on the movable mounting plate 54 and the conveying roller 52 and the brush roller 53 on the fixed mounting plate 51.

[0034] During the normal scraping process of glass substrate 9, the conveyor roller 52 and brush roller 53, which are used for a long time, are prone to collapse or wear due to frequent friction, which seriously affects the scraping effect. Therefore, the optimized scraping device 5 also includes a first connecting slide 56 fixedly connected to the movable mounting plate 54. The first connecting slide 56 and the second connecting slide 57 are slidably connected by a screw body 58. An elastic element 510, preferably a pressure spring, is provided between the first connecting slide 56 and the second connecting slide 57 and fitted on the screw body 58. The tail end of the screw body 58 is threaded with an adjusting nut 511. The pressure of the conveyor roller 52 and brush roller 53 on the glass substrate 9 can be adjusted by adjusting the nut 511. The elastic element 510 has a certain buffering force. When the scraping force changes during the scraping process, the elastic element 510 can adaptively adjust the scraping force, so that the scraping of each glass substrate 9 is very uniform and the scraping effect is stably guaranteed.

[0035] Further optimizations, such as Figure 3 , Figure 4 and Figure 5As shown, the second connecting slide 57 is threadedly connected to the lead screw motor 59. The lead screw end of the lead screw motor 59 is rotatably connected to the lead screw connecting body 512 fixed to the guide body 55. The lead screw motor 59 is used to automatically adjust the movable mounting plate 54 without manual adjustment. By simultaneously controlling the rotation direction of the lead screw motor 59, the second connecting slide 57 can be driven to rise or fall, thereby adjusting the distance between the conveyor rollers 52 and brush rollers 53 on the movable mounting plate 54 and the conveyor rollers 52 and brush rollers 53 on the fixed mounting plate 51.

[0036] In actual cleaning processes, it is found that the structure of the brush roller 53 is crucial to the scraping effect. However, the currently used brush roller 53 has bristles formed on its surface. These bristles scrape the same position during rotation, thus failing to evenly scrape the surface of the glass substrate 9. Therefore, this embodiment employs a novel brush roller 53, specifically, as follows: Figure 8 As shown, the brush roller 53 includes a rotating shaft 531 that is driven to the second drive device 534. A cylindrical rotating body 532 is integrally formed on the outer surface of the rotating shaft 531. A spiral brush 533 is formed on the cylindrical surface of the cylindrical rotating body 532. The spiral brush 533 has a lateral scraping force that pushes to one side when rotating, so that the surface of the glass substrate 9 can be scraped evenly.

[0037] Further optimizations, such as Figure 8 As shown, the spiral brush 533 includes a first-direction spiral brush 5331 that is spirally wound from the center of the cylindrical surface of the cylindrical rotating body 532 toward one end in a positive direction, and a second-direction spiral brush 5332 that is spirally wound from the center of the cylindrical surface of the cylindrical rotating body 532 toward the other end in a negative direction. When the brush roller 53 rotates, the first-direction spiral brush 5331 and the second-direction spiral brush 5332 scrape from the center of the surface of the glass substrate 9 to both sides, which can scrape and discharge the contaminants of the glass substrate 9 to both sides, achieving more uniform and efficient cleaning.

[0038] After cleaning, the surface of the glass substrate 9 will be covered with water droplets. At this time, it needs to be dried. Therefore, the drying unit 106 is equipped with several dryers 6 that blow hot air onto the conveyor wheel assembly 2. The dryers 6 are used to blow air onto the conveyor wheel assembly 2. The glass substrate 9 conveyed to the drying unit 106 will be dried quickly by the hot air. The dried glass substrate 9 is then sent to the next process step. Therefore, the drying unit 106 can be connected to the next step.

[0039] Because when the scraping device 5 of this utility model is installed into the body 1, part of the structure extends into the body 1, such as... Figure 1 and Figure 2As shown, the main body 1 will form a corresponding mounting hole to accommodate the extension. Therefore, a baffle 7 is provided at the mounting hole. The baffle 7 can protect the worker and also prevent the cleaning liquid from spilling onto the main body 1 during the cleaning process and causing pollution.

[0040] Further optimized, a sliding cover is slidably provided on the top surface of the machine body 1. The sliding cover is used to prevent the sprayed cleaning liquid from spilling out of the machine body 1. The sliding cover can be slidably opened relative to the machine body 1 so that workers can perform maintenance and other operations. Preferably, the sliding cover is a transparent cover, so that the internal condition of the machine body 1 can be observed through the transparent cover during normal cleaning.

[0041] Furthermore, the bottom surface of the fuselage body 1 is provided with evenly arranged support members 8. The support members 8 are the legs that support the fuselage body 1. The support members 8 separate the bottom surface of the fuselage body 1, which can prevent damage or corrosion to the fuselage body 1 caused by humid weather.

[0042] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An LCD substrate cleaning mechanism, comprising a main body (1), wherein the main body (1) is a hollow cuboid structure and is internally provided with a conveyor wheel assembly (2) for conveying a glass substrate (9), the conveyor wheel assembly (2) transporting the glass substrate (9) from the head end of the main body (1) to the tail end of the main body (1) at a certain speed, characterized in that: The main body (1) is divided into a feeding unit (101), a first spray washing unit (102), a first scraping washing unit (103), a second scraping washing unit (104), a second spray washing unit (105) and a drying unit (106) from the head end to the tail end by corresponding partitions (3). The first spray washing unit (102), the first scraping washing unit (103), the second scraping washing unit (104) and the second spray washing unit (105) are all equipped with a spray washing device (4) for spraying cleaning liquid onto the conveyor wheel assembly (2). The first scraping washing unit (103) and the second scraping washing unit (104) are detachably equipped with a scraping brush device (5), which is used to scrape the glass substrate (9) that is conveyed.

2. The LCD substrate cleaning mechanism according to claim 1, characterized in that: The drying unit (106) is provided with several dryers (6) that blow hot air to the conveyor wheel assembly (2). The dryers (6) are used to dry the cleaned glass substrate (9).

3. The LCD substrate cleaning mechanism according to claim 2, characterized in that: The scraping device (5) includes two fixed mounting plates (51) arranged opposite to each other, and a plurality of conveying rollers (52) and brush rollers (53) rotatably mounted between the fixed mounting plates (51). The conveying rollers (52) and brush rollers (53) are respectively driven to the first driving device (521) and the second driving device (534). The scraping device (5) also includes two movable mounting plates (54) arranged opposite to each other. Correspondingly, a plurality of conveying rollers (52) and brush rollers (53) rotatably mounted between the movable mounting plates (54) and driven to the corresponding driving devices. The movable mounting plates (54), conveying rollers (52) and brush rollers (53) are integrally slidably mounted to the fixed mounting plates (51). The distance between the conveying rollers (52) and brush rollers (53) on the movable mounting plates (54) and the conveying rollers (52) and brush rollers (53) on the fixed mounting plates (51) can be adjusted by the movable mounting plates (54).

4. The LCD substrate cleaning mechanism according to claim 3, characterized in that: The scraping device (5) further includes a guide body (55) fixedly mounted on the fixed mounting plate (51). The guide body (55) forms an elongated sliding hole. The movable mounting plate (54) is slidably mounted in the elongated sliding hole. The movable mounting plate (54) can slide in the elongated sliding hole to adjust the distance between the conveying roller (52) and brush roller (53) on the movable mounting plate (54) and the conveying roller (52) and brush roller (53) on the fixed mounting plate (51).

5. The LCD substrate cleaning mechanism according to claim 4, characterized in that: The scraping device (5) further includes a first connecting slide (56) fixedly connected to the movable mounting plate (54). The first connecting slide (56) and the second connecting slide (57) are slidably connected by a screw body (58). An elastic element (510) fitted on the screw body (58) is provided between the first connecting slide (56) and the second connecting slide (57). An adjusting nut (511) is threadedly connected to the tail end of the screw body (58). The second connecting slide (57) is threadedly connected to the lead screw motor (59). The lead screw end of the lead screw motor (59) is rotatably connected to the lead screw connecting body (512) fixed to the guide body (55). The lead screw motor (59) can be controlled to adjust the distance between the conveying roller (52) and brush roller (53) on the movable mounting plate (54) and the conveying roller (52) and brush roller (53) on the fixed mounting plate (51).

6. An LCD substrate cleaning mechanism according to claim 3, 4, or 5, characterized in that: The brush roller (53) includes a rotating shaft (531) that is driven to a second drive device (534). The outer surface of the rotating shaft (531) is integrally formed with a cylindrical rotating body (532), and the cylindrical surface of the cylindrical rotating body (532) forms a spiral brush (533).

7. The LCD substrate cleaning mechanism according to claim 6, characterized in that: The spiral brush (533) includes a first-direction spiral brush (5331) that is spirally wound from the middle of the cylindrical surface of the cylindrical rotating body (532) toward one end in a positive direction, and a second-direction spiral brush (5332) that is spirally wound from the middle of the cylindrical surface of the cylindrical rotating body (532) toward the other end in a negative direction.

8. An LCD substrate cleaning mechanism according to any one of claims 1 to 5 or 7, characterized in that: The top surface of the main body (1) is slidably provided with a sliding cover plate to prevent the sprayed cleaning liquid from spilling out of the main body (1).

9. An LCD substrate cleaning mechanism according to any one of claims 1 to 5 or 7, characterized in that: The fuselage body (1) has evenly arranged support members (8) on its bottom surface.

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