Automatic cleaning device for liquid crystal display screen

Abstract

The utility model relates to the technical field of display screen production equipment, and provides an automatic liquid crystal display screen cleaning device which comprises a machine body, a conveying mechanism, a first cleaning mechanism and a second cleaning mechanism. A plurality of through holes are formed in the conveying mechanism, a lifting air cylinder and a lifting table controlled by the lifting air cylinder to ascend and descend are further arranged in the machine body, the second cleaning mechanism is arranged on the lifting table, and the second cleaning mechanism can upwards penetrate out of the through holes to jack up the display screen on the conveying mechanism and conduct blowing cleaning on the bottom of the display screen; through cooperation of the first cleaning mechanism and the second cleaning mechanism, air blowing cleaning of the upper face and the lower face can be conducted after the display screen on the conveying mechanism is jacked up, cleaning is comprehensive, and the cleaning effect is high.

Description

Technical Field

[0001] This utility model relates to the field of display screen production equipment technology, and in particular to an automatic cleaning device for liquid crystal displays. Background Technology

[0002] Cleanliness is of paramount importance for LCD screens, as even the smallest dust particles can affect their production. For example, cleaning is required during processes such as polarizer bonding, screen surface coating, and outgoing inspection to prevent dust and impurities from impacting the production process.

[0003] CN211385918U discloses a dust removal and drying device for LCD screen production, including a support frame, a housing below the support frame, and two partitions inside the housing to divide the housing into a cleaning fluid storage chamber, a cleaning fluid recovery chamber, and a drying chamber. A first rotating drum is rotatably mounted on the upper part of the cleaning fluid storage chamber, with one side of the first rotating drum located outside the housing and the other side located inside the housing and immersed in the cleaning fluid. The outside of the first rotating drum is covered with a cleaning component. A second rotating drum is rotatably mounted on the upper part of the cleaning fluid recovery chamber.

[0004] CN221869411U discloses a flip-type dust removal device for mobile phone display processing, including a box body, a sliding groove opened on the side wall of the box body, a rotating component provided in the sliding groove, the rotating component including a rotating rod, a clamping component for fixing the display screen is provided on the outer periphery of the rotating rod, and dust removal components are provided on the top and bottom of the box body.

[0005] In existing technologies, a continuous conveyor belt is used for transporting the display screen, and a blowing or suction dust removal mechanism is installed on the conveyor belt to clean the continuously transported display screen. However, this method cannot clean the bottom of the display screen. Although the cleaning efficiency is high, it has certain limitations. For example, the dust removal device disclosed in CN221869411U can flip the display screen to clean both sides, but each display screen needs to be clamped and fixed during cleaning, which is inconvenient and the cleaning efficiency is slow. Therefore, there is an urgent need for a display screen cleaning device that can meet the requirements of continuous transport and can clean both sides of the display screen. Utility Model Content

[0006] In existing technologies, a continuous conveyor belt is used for transporting the display screen, and a blowing or suction dust removal mechanism is installed on the conveyor belt to clean the continuously transported display screen. However, this method cannot clean the bottom of the display screen. Although the cleaning efficiency is high, it has certain limitations. For example, the dust removal device disclosed in CN221869411U can flip the display screen to clean both sides, but each display screen needs to be clamped and fixed during cleaning, which is inconvenient and the cleaning efficiency is slow. Therefore, there is an urgent need for a display screen cleaning device that can meet the requirements of continuous transport and can clean both sides of the display screen.

[0007] In view of this, the present invention aims to provide an automatic cleaning device for liquid crystal displays. In the present invention, the automatic cleaning device for liquid crystal displays includes a body, a conveying mechanism, and a first cleaning mechanism disposed on the inner top of the body.

[0008] The conveying mechanism is located inside the machine body, and both ends of the conveying mechanism extend from both sides of the machine body for loading and unloading the display screen; the first cleaning mechanism is used to clean the display screen on the conveying mechanism by blowing air from top to bottom;

[0009] The conveying mechanism has multiple through holes, and the machine body is also equipped with a lifting cylinder, a lifting platform, and a second cleaning mechanism. The lifting cylinder is installed in the machine body to drive the lifting platform to rise and fall; the second cleaning mechanism is installed on the lifting platform; the second cleaning mechanism can push the display screen on the conveying mechanism upward through the through holes and blow air to clean the bottom of the display screen.

[0010] Furthermore, the second cleaning mechanism includes an air pump and at least two lifting units; the output end of the air pump is connected to the lifting unit, and the input end is connected to an external air storage tank; each lifting unit corresponds to one of the perforations.

[0011] Furthermore, the lifting unit includes an air supply pipe vertically fixed on the lifting platform and a first magnetic connector fixed to the top of the air supply pipe.

[0012] Furthermore, an air blowing head is provided inside the perforation, an air jet nozzle is provided on the side of the air blowing head, and a second magnetic connector is provided at the bottom of the air blowing head. The first magnetic connector can be inserted into the second magnetic connector from the bottom of the second magnetic connector and communicate with the second magnetic connector.

[0013] Furthermore, the top of the blowing head is provided with a jet nozzle.

[0014] Furthermore, a placement rack is provided inside the perforation, and the air blowing head is placed on the placement rack. The air blowing head and the placement rack are connected by an elastic rope.

[0015] Furthermore, the conveying mechanism includes two drive wheels, a drive component for driving the drive wheels to rotate, and a chain tensioned on the two drive wheels;

[0016] The storage chain includes several placement plates connected in sequence, and each placement plate is hinged to the other; each placement plate is for placing a display screen, and each placement plate has a through hole.

[0017] The automatic cleaning device for LCD screens disclosed in this utility model, through the arrangement of a first cleaning mechanism, a second cleaning mechanism, and a lifting platform, lifts the screen from the conveying mechanism by the lifting platform and the second cleaning mechanism, causing it to detach from the conveying mechanism. Combined with the vertical air blowing cleaning by the first and second cleaning mechanisms, it can clean both the top and bottom surfaces of the screen simultaneously. It can achieve continuous conveying while cleaning both the top and bottom surfaces of the screen, resulting in comprehensive cleaning and high cleaning efficiency.

[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a structural schematic diagram of one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the conveying mechanism in one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the placement plate in one embodiment of the present invention;

[0023] Figure 4 This is a cross-sectional schematic diagram of the placement plate in one embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram showing the state of the placement plate when the display screen is lifted in this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Body; 2. Conveying mechanism; 21. Drive wheel; 22. Storage chain; 221. Placement plate; 222. Perforation; 3. First cleaning mechanism; 4. Second cleaning mechanism; 41. Air pump; 42. Air supply pipe; 43. First magnetic connector; 44. Air blower; 45. Second magnetic connector; 46. Air nozzle; 47. Placement rack; 48. Elastic rope; 5. Lifting cylinder; 6. Lifting platform. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices. "Fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connections, welding, or bonding.

[0030] In existing technologies, a continuous conveyor belt is used for transporting the display screen, and a blowing or suction dust removal mechanism is installed on the conveyor belt to clean the continuously transported display screen. However, this method cannot clean the bottom of the display screen. Although the cleaning efficiency is high, it has certain limitations. For example, the dust removal device disclosed in CN221869411U can flip the display screen to clean both sides, but each display screen needs to be clamped and fixed during cleaning, which is inconvenient and the cleaning efficiency is slow. Therefore, there is an urgent need for a display screen cleaning device that can meet the requirements of continuous transport and can clean both sides of the display screen.

[0031] This utility model provides an automatic cleaning device for LCD screens, such as... Figure 1 As shown, in this embodiment, the automatic cleaning device for LCD screens includes a body 1, a conveying mechanism 2, and a first cleaning mechanism 3. The conveying mechanism 2 is located inside the body 1, and its two ends extend from both sides of the body 1 for loading and unloading LCD screens. The LCD screen to be cleaned is placed on the conveying mechanism 2 on one side, conveyed into the body 1, and paused for a few seconds inside the conveying mechanism 2 for cleaning. After cleaning, the screen is conveyed out from the other side. The first cleaning mechanism 3 is installed on the inner top of the body 1 and located above the conveying mechanism 2. The first cleaning mechanism 3 can spray air downwards to clean the upper surface of the LCD screen on the conveying mechanism 2. The conveying mechanism 2 has multiple perforations 222, and LCD screens are placed on the conveying mechanism 2, with each screen placed at the upper end of a perforation 222. The body 1 also includes a lifting cylinder 5, a lifting platform 6, and a second cleaning mechanism 4. The body 1 has an installation platform for lifting and lowering the cylinder. Cylinder 5 is mounted on the mounting platform, and lifting platform 6 is connected to the upper telescopic rod of lifting cylinder 5, so that lifting cylinder 5 drives lifting platform 6 to rise and fall within the machine body 1; second cleaning mechanism 4 is mounted on lifting platform 6 and moves up and down together with lifting platform 6; at least part of second cleaning mechanism 4 can pass through through hole 222 when lifting platform 6 rises and lift the display screen on conveying mechanism 2, while blowing air to clean the bottom of display screen, realizing air cleaning of the bottom of display screen; in conjunction with first cleaning mechanism 3, it realizes air cleaning of the upper and lower ends of display screen; second cleaning mechanism 4 includes air pump 41 and two lifting units. Air pump 41 is mounted on lifting platform 6. The output end of air pump 41 is connected to lifting unit for supplying air to lifting unit. The input end of air pump 41 is connected to external air storage tank; each of the lifting units is set with a through hole 222, that is, when lifting platform 6 rises, the two lifting units move upward and pass through a through hole 222 to lift a display screen.

[0032] This utility model, through the arrangement of a first cleaning mechanism 3, a second cleaning mechanism 4, and a lifting platform 6, allows the display screen to be cleaned simultaneously. The lifting platform 6 and the second cleaning mechanism 4 lift the display screen from the conveying mechanism 2, detaching it from the conveying mechanism 2. Combined with the vertical air blowing of the first cleaning mechanism 3 and the second cleaning mechanism 4, both the top and bottom surfaces of the display screen can be cleaned at the same time. This allows for continuous conveying while cleaning both surfaces, enabling the cleaning of multiple display screens at once, providing comprehensive cleaning, and achieving high cleaning efficiency.

[0033] To prevent dust blown off the display screen from returning to the screen, adsorption mechanisms are installed on both sides inside the body 1 to adsorb the gas discharged by the first cleaning mechanism 3 and the second cleaning mechanism 4. The dust is also adsorbed and enters the adsorption mechanism. The adsorption mechanism can be set as a vacuum pump 41, with one end connected to the adsorption cover and the other end connected to the filter mechanism. The output end of the filter mechanism is connected to the air storage tank to realize gas circulation.

[0034] To stably lift the display screen and clean it with air, the lifting unit is configured with an air supply pipe 42 and a first magnetic connector 43. The air supply pipe 42 is fixed to the lifting platform 6, with one end connected to the output end of the air pump 41. Figure 4 and Figure 5 As shown, an air blowing head 44 is provided inside the perforation 222. Air nozzles 46 are provided on the side and top of the air blowing head 44 so that the air blowing head 44 can blow air onto the display screen from bottom to top during the rising process, and blow air onto the display screen from the side after the air blowing head 44 lifts the display screen. A second magnetic connector 45 is provided at the bottom of the air blowing head 44. A first magnetic connector 43 can be inserted into the second magnetic connector 45 from the bottom of the second magnetic connector 45 and communicate with the second magnetic connector 45. The cooperation of the first magnetic connector and the second magnetic connector can enable the air supply pipe 42 to communicate with the air blowing head 44 so as to realize the air supply operation of the air blowing head 44.

[0035] To ensure the stability of the air blowing head 44 and to prevent it from detaching from the perforation 222 while allowing it to rise and fall stably, a placement frame 47 is installed inside the perforation 222. The placement frame 47 is connected to the conveying mechanism 2 by screws. The air blowing head 44 is mounted on the placement frame 47, and the air blowing head 44 is connected to the placement frame 47 by an elastic rope 48. This prevents the air blowing head 44 from detaching from the perforation 222 and provides a restoring force after the air blowing head 44 is lifted.

[0036] To ensure the stability of the display screen transport and improve the coordination between the transport mechanism 2 and the lifting unit; such as Figure 2 and Figure 3 As shown, the conveying mechanism 2 includes two drive wheels 21, a drive component for driving the drive wheels 21 to rotate, and a storage chain 22 tensioned on the two drive wheels 21. The two drive wheels 21 are fixed inside the machine body 1 by a fixed frame. The drive wheels 21 are mounted on the fixed frame by a rotating shaft. The drive component is a motor, which drives the drive wheels 21 to rotate. The two drive wheels 21 are connected by a plurality of sequentially connected placement plates 221 via the storage chain 22. Each placement plate 221 is sequentially hinged to each other by a rotating shaft. Each placement plate 221 has a through hole 222, and a display screen is placed on each placement plate 221.

[0037] The working principle of this utility model is as follows: The display screen is placed on the placement plate 221 of the conveying mechanism 2. Then, the conveying mechanism 2 is started to drive the display screen into the cleaning station inside the machine body 1. The conveying mechanism 2 is stopped, and the lifting cylinder 5 is started to drive the lifting mechanism to rise. The first cleaning mechanism 3 and the second cleaning mechanism 4 are started. The first cleaning mechanism 3 blows air downward to clean the upper surface of the display screen. During the rising process of the lifting mechanism, the first magnetic connector 43 and the second magnetic connector 45 are connected to drive the air blowing head 44 to approach the display screen. During the approach process, air is blown upward to clean the bottom of the display screen. At the same time, after the display screen is lifted, the upward air blowing head stops, and the side air blowing nozzle 46 starts blowing air to further clean the bottom of the display screen. After a few seconds, the blowing work stops, and the second cleaning mechanism 4 is controlled to descend, so that the display screen returns to the conveying mechanism 2. The conveying mechanism 2 is started again to send the cleaned display screen out of the machine body 1.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic cleaning device for liquid crystal display screens, characterized in that, The display screen conveying device comprises a machine body (1), a conveying mechanism (2) and a first cleaning mechanism (3) arranged on the inner top of the machine body (1). The conveying mechanism (2) is located in the machine body (1), and two ends of the conveying mechanism (2) respectively pass through two sides of the machine body (1) for feeding and discharging display screens; the first cleaning mechanism (3) is used for blowing and cleaning the display screens on the conveying mechanism (2) from top to bottom. A plurality of perforations (222) are arranged on the conveying mechanism (2), and a lifting cylinder (5), a lifting platform (6) and a second cleaning mechanism (4) are further arranged in the machine body (1); the lifting cylinder (5) is installed in the machine body (1) to drive the lifting platform (6) to lift; the second cleaning mechanism (4) is installed on the lifting platform (6); the second cleaning mechanism (4) can lift the display screen on the conveying mechanism (2) through the perforation (222) and blow and clean the bottom of the display screen.

2. The automatic cleaning device for liquid crystal display screen according to claim 1, wherein The second cleaning mechanism (4) comprises a gas pump (41) and at least two lifting units; the output end of the gas pump (41) is communicated with the lifting units, and the input end is communicated with an external gas storage tank; each lifting unit corresponds to one perforation (222).

3. The device according to claim 2, wherein The lifting unit comprises a gas supply pipe (42) vertically fixed on the lifting platform (6) and a first magnetic connector (43) fixed on the top of the gas supply pipe (42).

4. The device according to claim 3, wherein The perforation (222) is provided with a blowing head (44), the side of the blowing head (44) is provided with a gas nozzle (46), the bottom of the blowing head (44) is provided with a second magnetic connector (45), and the first magnetic connector (43) can be inserted into the second magnetic connector (45) and communicated with the second magnetic connector (45) from the bottom of the second magnetic connector (45).

5. The device according to claim 4, wherein The top of the blowing head (44) is provided with a gas nozzle (46).

6. The device according to claim 4, wherein the cleaning liquid is applied to the screen by a spray nozzle. The perforation (222) is provided with a placing rack (47), the blowing head (44) is placed on the placing rack (47), and the blowing head (44) and the placing rack (47) are connected through an elastic rope (48).

7. The device according to any one of claims 1 to 6, wherein The conveying mechanism (2) comprises two transmission wheels (21), a driving member for driving the transmission wheels (21) to rotate and a placing chain (22) arranged on the two transmission wheels (21) in tension; The placing chain (22) comprises a plurality of placing plates (221) connected in sequence, and the placing plates (221) are hingedly arranged; each placing plate (221) is used for placing one display screen, and the placing plate (221) is provided with one perforation (222).

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