A surface dust removal device for LED display screen production
Patent Information
- Application Number
- CN202522318285.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-10-31
AI Technical Summary
[0002]LED显示屏是一种由众多发光二极管组成的平板显示设备，通过控制LED的亮灭与发光颜色，实现文字、图像、视频等信息的显示，它具有亮度高，可视角度大，功耗低，寿命长等特点，能在户外强光环境或室内场景清晰展示内容，广泛应用于广告传媒，体育场馆，舞台演出，交通枢纽，会议中心等领域，可灵活拼接成不同尺寸，满足大型赛事直播等，LED显示屏在生产过程中必须使用除尘装置，这是因为制造工艺对洁净度的要求极为严格，任何微小的灰尘或颗粒都可能对产品质量造成严重影响，LED显示屏的核心部件如LED芯片电路短路或灯珠失效，直接影响显示均匀性和产品良率
本实用新型配备升降组件和吸尘系统的LED显示屏生产用表面除尘装置能显著提升生产质量和效率，升降组件采用气缸驱动转轮与斜块的斜面配合，实现平稳精准的高度调节，适应不同厚度的LED屏幕，通过高度调节同时在除尘过程中不会将LED屏幕进行位移，风机通过风管与分离器和过滤器形成封闭的气流循环系统，当风机启动时在系统内产生负压，使吸尘罩能够高效吸取清洁过程中产生的粉尘。
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Figure CN224763710U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal equipment technology, specifically a surface dust removal device for LED display production. Background Technology
[0002] An LED display screen is a flat panel display device composed of numerous light-emitting diodes (LEDs). By controlling the brightness and color of the LEDs, it displays text, images, videos, and other information. It features high brightness, wide viewing angles, low power consumption, and long lifespan. It can clearly display content in both outdoor high-light environments and indoor settings, and is widely used in advertising media, stadiums, stage performances, transportation hubs, conference centers, and other fields. It can be flexibly spliced into different sizes to meet the needs of large-scale live events. Dust removal devices must be used during the production process of LED displays because the manufacturing process has extremely strict requirements for cleanliness. Any tiny dust or particle can seriously affect product quality. Short circuits or lamp failures in core components of LED displays, such as LED chips, directly affect display uniformity and product yield.
[0003] Existing surface dust removal devices for LED display production typically clean the display using brushes. However, the brushes of these devices cannot be adjusted according to the thickness or height of the screen. This results in uneven cleaning intensity when cleaning LED modules of different sizes. Too large a spacing leads to incomplete dust removal, with residual dust affecting subsequent surface mounting or encapsulation processes. Too small a spacing, on the other hand, can scratch the display surface or damage precision components. Furthermore, it cannot adsorb the cleaned dust, causing it to re-spread in the air, not only re-contaminating the cleaned display but also spreading throughout the entire production environment.
[0004] Therefore, it is necessary to provide a new surface dust removal device for LED display production to solve the above-mentioned technical problems. Utility Model Content
[0005] The purpose of this invention is to provide a surface dust removal device for LED display production, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a surface dust removal device for LED display production, comprising a housing and a conveyor belt, wherein a lifting assembly is provided inside the housing, the lifting assembly includes a connecting plate fixedly connected to the inner wall of the housing, a cylinder fixedly connected to one side of the connecting plate, a push rod fixedly connected to the piston rod of the cylinder, a connecting block fixedly connected to the outer side of the push rod, a rotating wheel rotatably connected to the inner wall of the connecting block, an inclined block rollingly connected to the outer side of the rotating wheel, a lifting block fixedly connected to the top of the inclined block, and a lifting rod fixedly connected to the top of the lifting block; A cleaning assembly is disposed on the top of the conveyor belt. The cleaning assembly includes a fixed block fixedly connected to the top of the lifting rod. A fixed plate is fixedly connected to the top of the fixed block. A first brush rod and a second brush rod are rotatably connected to the bottom of the fixed plate. A first connecting rod is rotatably connected to the top of the first brush rod and the second brush rod. A dust collection hood is disposed on the inner wall of the housing. A dust collection pipe is connected to the inner wall of the dust collection hood. One end of the dust collection pipe passes through the inner wall of the housing and is connected to a separator.
[0007] Preferably, a fan is fixedly connected to the top of the housing, the air inlet of the fan is connected to an air duct, and one end of the air duct penetrates the inner wall of the separator and is connected to a filter.
[0008] Preferably, the bottom of the separator is fixed with a collection box by bolts, and a transparent acrylic observation door is provided on one side of the collection box.
[0009] Preferably, the cleaning assembly further includes a motor fixedly connected to the top of the fixed plate, the output end of the motor is fixedly connected to a drive wheel, the outer side of the drive wheel is meshed with a driven wheel, the eccentric part of the driven wheel is rotatably connected to a second connecting rod, and the outer side of the second connecting rod is rotatably connected to the outer side of the first brush rod.
[0010] Preferably, a first slide rail is fixedly connected to one side of the connecting plate, a first slider is slidably connected to the outer side of the first slide rail, and one side of the first slider is fixedly connected to one side of the connecting block.
[0011] Preferably, a second slide rail is fixedly connected to one side of the connecting plate, a second slider is slidably connected to the outer side of the second slide rail, and one side of the second slider is fixedly connected to one side of the lifting block.
[0012] Preferably, the separator is provided with a transparent acrylic access door on its outer side.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, equipped with a lifting component and a dust collection system, is a surface dust removal device for LED display production. It can significantly improve production quality and efficiency. The lifting component uses a cylinder-driven rotating wheel that cooperates with the inclined surface of the inclined block to achieve stable and precise height adjustment, adapting to LED screens of different thicknesses. Through height adjustment, the LED screen will not be displaced during the dust removal process. The fan forms a closed airflow circulation system with the air duct, separator, and filter. When the fan starts, negative pressure is generated in the system, enabling the dust collection hood to efficiently extract the dust generated during the cleaning process. Attached Figure Description
[0014] Figure 1A schematic diagram of a preferred embodiment of the surface dust removal device for LED display production provided by this utility model; Figure 2 This is a schematic diagram of the shell structure in this utility model; Figure 3 This is a schematic diagram of the lifting component in this utility model; Figure 4 This is a schematic diagram of the cleaning component in this utility model.
[0015] In the diagram: 1. Housing; 2. Conveyor belt; 3. Lifting assembly; 31. Connecting plate; 32. Cylinder; 33. Push rod; 34. Connecting block; 35. Rotary wheel; 36. Inclined block; 37. Lifting block; 38. Lifting rod; 4. Cleaning assembly; 41. Fixing block; 42. Fixing plate; 43. First brush rod; 44. Second brush rod; 45. First connecting rod; 46. Motor; 47. Drive wheel; 48. Driven wheel; 49. Second connecting rod; 5. Dust hood; 6. Dust suction pipe; 7. Separator; 8. Filter; 9. Collection box; 10. Air duct; 11. Fan; 12. Inspection door; 13. First slide rail; 14. First slider; 15. Second slide rail; 16. Second slider. Detailed Implementation
[0016] 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.
[0017] Please see Figure 1-4 As shown, a surface dust removal device for LED display production includes a housing 1 and a conveyor belt 2. A lifting assembly 3 is disposed inside the housing 1. The lifting assembly 3 includes a connecting plate 31 fixedly connected to the inner wall of the housing 1. A cylinder 32 is fixedly connected to one side of the connecting plate 31. A push rod 33 is fixedly connected to the piston rod of the cylinder 32. A connecting block 34 is fixedly connected to the outer side of the push rod 33. A rotating wheel 35 is rotatably connected to the inner wall of the connecting block 34. An inclined block 36 is rolledly connected to the outer side of the rotating wheel 35. A lifting block 37 is fixedly connected to the top of the inclined block 36. A lifting rod 38 is fixedly connected to the top of the lifting block 37. Cleaning component 4 is disposed on the top of conveyor belt 2. Cleaning component 4 includes a fixing block 41 fixedly connected to the top of lifting rod 38. A fixing plate 42 is fixedly connected to the top of fixing block 41. A first brush rod 43 and a second brush rod 44 are rotatably connected to the bottom of fixing plate 42 respectively. A first connecting rod 45 is rotatably connected to the top of the first brush rod 43 and the second brush rod 44. A dust hood 5 is installed on the inner wall of the housing 1. A dust suction pipe 6 is connected to the inner wall of the dust hood 5. One end of the dust suction pipe 6 passes through the inner wall of the housing 1 and is connected to a separator 7.
[0018] It should be noted that when the LED display screen enters the housing 1 via the conveyor belt 2, the cylinder 32 of the lifting assembly 3 is activated and pushes the piston rod to move horizontally, causing the push rod 33 and the connecting block 34 to move synchronously. The rotating wheel 35 on the inner wall of the connecting block 34 rolls along the inclined surface of the inclined block 36, converting the horizontal thrust into vertical lift, pushing the inclined block 36 and the lifting block 37 and lifting rod 38 fixed on its top to move upward. The fixed block 41 on the top of the lifting rod 38 drives the fixed plate 42 to rise, so that the first brush rod 43 and the second brush rod 44 of the cleaning assembly 4 contact the screen surface, preventing the first brush rod 43 and the second brush rod 44 from blocking the screen from moving on the conveyor belt 2. At the same time, the motor 46 drives the drive wheel 47 to rotate, which drives the second connecting rod 49 to move through the meshing driven wheel 48, causing the first brush rod 43 to swing and move through the first connecting rod 45. The second brush bar 44 is linked to form a cross reciprocating motion, thoroughly removing dust from the screen surface and crevices. Dust generated during the cleaning process is captured in real time by the dust hood 5 and introduced into the separator 7 through the dust suction pipe 6 for gas-solid separation. The dust falls into the collection box 9, and the purified gas enters the filter 8 through the air duct 10 for further filtration before being discharged by the fan 11. The lifting component 3 uses a cylinder 32 to drive the rotating wheel 35 in cooperation with the inclined surface of the inclined block 36 to achieve stable and precise height adjustment, adapting to LED screens of different thicknesses. The height adjustment does not cause the LED screen to shift during the dust removal process. The cleaning component 4 is driven by the motor 46 to drive the first brush bar 43 and the second brush bar 44 to move crosswise, resulting in high cleaning efficiency and the ability to reach deep into crevices. The dust suction system composed of the dust hood 5 and the separator 7 achieves real-time collection and separation of dust, avoiding secondary pollution.
[0019] A fan 11 is fixedly connected to the top of the housing 1. The air inlet of the fan 11 is connected to a duct 10. One end of the duct 10 passes through the inner wall of the separator 7 and is connected to a filter 8.
[0020] It should be noted that the fan 11 of this dust removal device forms a closed airflow circulation system with the separator 7 and filter 8 through the air duct 10. When the fan 11 starts, a negative pressure is generated in the system, which enables the dust suction hood 5 to efficiently suck up the dust generated during the cleaning process. The dust-laden airflow enters the separator 7 through the suction pipe 6 for separation. The dust falls into the collection box 9 under the action of centrifugal force. The purified airflow continues to enter the filter 8 through the air duct 10, and finally the clean air is discharged by the fan 11. The linkage design of the fan 11, separator 7 and filter 8 forms a complete dust removal circulation system. The separator 7 performs primary separation, which can effectively reduce the workload of the filter 8 and extend the service life of the filter element. The closed airflow circulation design avoids dust leakage, ensures the cleanliness of the working environment, and facilitates maintenance and cleaning.
[0021] The bottom of the separator 7 is fixed with a collection box 9 by bolts, and a transparent acrylic observation door is provided on one side of the collection box 9.
[0022] It should be noted that when the dust-laden airflow enters the separator 7, the dust particles are thrown against the wall of the separator under the action of centrifugal force and settle along the wall surface, eventually falling into the collection box 9 connected at the bottom. The transparent acrylic observation door on the side of the collection box 9 can monitor the dust accumulation in real time. The bolt connection method makes the collection box 9 easy to disassemble and assemble, and facilitates regular cleaning of accumulated dust. The transparent observation door design realizes visual management. The direct connection between the separator 7 and the collection box 9 ensures that the dust collection path is the shortest, avoids secondary dust, and facilitates maintenance. When the collection box 9 is full, it can be quickly disassembled and replaced, effectively preventing dust leakage and environmental pollution.
[0023] The cleaning assembly 4 also includes a motor 46 fixedly connected to the top of the fixing plate 42. The output end of the motor 46 is fixedly connected to a drive wheel 47. A driven wheel 48 is meshed with the outer side of the drive wheel 47. A second connecting rod 49 is rotatably connected to the eccentric part of the driven wheel 48, and the outer side of the second connecting rod 49 is rotatably connected to the outer side of the first brush rod 43.
[0024] It should be noted that the motor 46 of the cleaning component 4 drives the driven wheel 48, which meshes with it, to rotate through the drive wheel 47. Since the eccentric part of the driven wheel 48 is rotatably connected to the first brush rod 43 through the second connecting rod 49, when the driven wheel 48 rotates, it drives the second connecting rod 49 to make eccentric motion, thereby driving the first brush rod 43 to produce reciprocating oscillation. At the same time, the first brush rod 43 drives the second brush rod 44 to make synchronous reverse motion through the first connecting rod 45. The eccentric wheel mechanism converts the rotational motion into reciprocating oscillation, so that the brush rod obtains a cleaning action trajectory. The dual brush rod linkage design expands the cleaning coverage area and improves cleaning efficiency. The speed of the motor 46 can be adjusted according to actual needs to control the oscillation frequency of the brush rod.
[0025] A first slide rail 13 is fixedly connected to one side of the connecting plate 31, and a first slider 14 is slidably connected to the outside of the first slide rail 13. One side of the first slider 14 is fixedly connected to one side of the connecting block 34.
[0026] It should be noted that when the cylinder 32 pushes the push rod 33 to move horizontally, the connecting block 34 drives the first slider 14 to move linearly along the first slide rail 13. The first slide rail 13 and the first slider 14 form a guiding mechanism to ensure that the movement trajectory of the push rod 33 and the connecting block 34 is accurate, effectively eliminating the possible offset and shaking of the connecting block 34 during the movement. The sliding friction resistance is small, making the power transmission of the cylinder 32 more efficient, and providing a stable motion basis for the cooperation between the rotating wheel 35 and the inclined block 36.
[0027] A second slide rail 15 is fixedly connected to one side of the connecting plate 31, and a second slider 16 is slidably connected to the outside of the second slide rail 15. One side of the second slider 16 is fixedly connected to one side of the lifting block 37.
[0028] It should be noted that the second slide rail 15 and the second slider 16 work together to achieve vertical lifting and lowering. When the cylinder 32 pushes the inclined block 36 to produce vertical displacement, the lifting block 37 drives the second slider 16 to move in a straight line along the second slide rail 15, ensuring that the lifting and lowering process is smooth and without shaking. The second slide rail 15 provides vertical guidance.
[0029] A transparent acrylic inspection door 12 is provided on the outside of the separator 7.
[0030] It should be noted that the separator 7 is operated and maintained through a transparent acrylic inspection door 12. When the equipment is running, the inspection door 12 remains closed to ensure the sealing of the separation process. When maintenance is required, the inspection door 12 can be quickly opened for internal inspection and repair, making it easy to observe and replace the filter 8.
[0031] Working principle: Conveyor belt 2 smoothly delivers the screen to be cleaned into the working area inside housing 1. Cylinder 32 controls push rod 33 to perform horizontal reciprocating motion. Rotary wheel 35 rolls along the specially designed inclined surface of inclined block 36, efficiently converting horizontal thrust into vertical lifting force, driving lifting rod 38 to achieve millimeter-level precision up and down movement. Motor 46 drives drive wheel 47 to rotate through gear transmission, driving driven wheel 48 to rotate. Second connecting rod 49 converts rotational motion into reciprocating oscillation of first brush rod 43. At the same time, the first connecting rod 45 links with second brush rod 44 to form a cross motion trajectory. The two brush rods perform deep cleaning of the screen surface at a specific frequency and amplitude. Fan 11 generates stable negative pressure airflow, which efficiently captures the dust generated during the cleaning process through dust hood 5. The dust-laden airflow is transported to separator 7 at the optimal flow rate in suction pipe 6, where it is centrifugally separated. The principle achieves gas-solid separation. Large dust particles fall into the collection box 9 for temporary storage under gravity. The purified airflow continues to be filtered through the filter 8, and finally clean air is discharged. The first slide rail 13 and the second slide rail 15 ensure the stability of horizontal and vertical movement, respectively. The transparent observation door of the collection box 9 and the maintenance door 12 of the separator 7 facilitate real-time monitoring and maintenance. The lifting component 3 uses a mechanical conversion principle to achieve height adjustment to meet the cleaning needs of screens of different thicknesses. The dual-brush cross-motion design of the cleaning component 4 improves cleaning efficiency by more than 80%, which is especially suitable for cleaning high-density LED screens. The dust collection system adopts a multi-stage filtration design with a dust collection efficiency of up to 99.5%. The transparent observation door of the collection box 9 can be opened in time for cleaning when it is full of dust. The maintenance door 12 is made of high-strength acrylic material, which makes it easy to observe the usage of the filter 8.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A surface dust removal device for LED display production, comprising a housing (1) and a conveyor belt (2), characterized in that, Also includes: A lifting assembly (3) is disposed inside the housing (1). The lifting assembly (3) includes a connecting plate (31) fixedly connected to the inner wall of the housing (1). A cylinder (32) is fixedly connected to one side of the connecting plate (31). A push rod (33) is fixedly connected to the piston rod of the cylinder (32). A connecting block (34) is fixedly connected to the outer side of the push rod (33). A rotating wheel (35) is rotatably connected to the inner wall of the connecting block (34). An inclined block (36) is rolledly connected to the outer side of the rotating wheel (35). A lifting block (37) is fixedly connected to the top of the inclined block (36). A lifting rod (38) is fixedly connected to the top of the lifting block (37). A cleaning component (4) is disposed on the top of the conveyor belt (2). The cleaning component (4) includes a fixing block (41) fixedly connected to the top of the lifting rod (38). A fixing plate (42) is fixedly connected to the top of the fixing block (41). A first brush rod (43) and a second brush rod (44) are rotatably connected to the bottom of the fixing plate (42). A first connecting rod (45) is rotatably connected to the top of the first brush rod (43) and the second brush rod (44). A dust hood (5) is disposed on the inner wall of the housing (1). The inner wall of the dust hood (5) is connected to a dust suction pipe (6). One end of the dust suction pipe (6) passes through the inner wall of the housing (1) and is connected to a separator (7).
2. The surface dust removal device for LED display production according to claim 1, characterized in that: A fan (11) is fixedly connected to the top of the housing (1). The air inlet of the fan (11) is connected to a duct (10). One end of the duct (10) passes through the inner wall of the separator (7) and is connected to a filter (8).
3. The surface dust removal device for LED display production according to claim 1, characterized in that: The bottom of the separator (7) is fixed with a collection box (9) by bolts, and a transparent acrylic observation door is provided on one side of the collection box (9).
4. The surface dust removal device for LED display production according to claim 1, characterized in that: The cleaning assembly (4) also includes a motor (46) fixedly connected to the top of the fixed plate (42). The output end of the motor (46) is fixedly connected to a drive wheel (47). A driven wheel (48) is meshed with the outer side of the drive wheel (47). A second connecting rod (49) is rotatably connected to the eccentric part of the driven wheel (48), and the outer side of the second connecting rod (49) is rotatably connected to the outer side of the first brush rod (43).
5. The surface dust removal device for LED display production according to claim 1, characterized in that: The first slide rail (13) is fixedly connected to one side of the connecting plate (31), and the first slider (14) is slidably connected to the outside of the first slide rail (13), and one side of the first slider (14) is fixedly connected to one side of the connecting block (34).
6. The surface dust removal device for LED display production according to claim 1, characterized in that: A second slide rail (15) is fixedly connected to one side of the connecting plate (31), and a second slider (16) is slidably connected to the outside of the second slide rail (15), and one side of the second slider (16) is fixedly connected to one side of the lifting block (37).
7. The surface dust removal device for LED display production according to claim 1, characterized in that: The separator (7) is provided with a transparent acrylic inspection door (12) on the outside.