Automatic PCB brushing machine

By using an adjustable brush and positioning component structure, combined with an industrial mini vacuum cleaner, the problems of poor applicability of the brushing machine and dust re-adhesion are solved, achieving precise positioning and efficient cleaning of the PCB board.

CN223932040UActive Publication Date: 2026-02-24JIANGSU SHENHAI ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520400940.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-02-24
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Existing PCB brushing machines cannot adjust the thickness between the brush bristles and the board according to the PCB board thickness, resulting in poor applicability. Furthermore, dust easily re-adhedes after cleaning, affecting the brushing effect.

Method used

It adopts an adjustable brush plate and positioning component structure, combined with an industrial mini vacuum cleaner, to achieve adjustable brush bristle distance and precise positioning of the PCB board and dust collection, preventing dust from re-adhering.

Benefits of technology

It allows for adjustment of the bristle distance based on the PCB board thickness, ensuring that the cleaning effect does not damage the board surface while effectively removing dust, and is suitable for PCB boards of different sizes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a PCB automatic board brushing machine which comprises a workbench, a mounting frame is arranged on the workbench, a connecting plate is arranged on the inner wall of the mounting frame, a board brushing piece is adjustably connected to the connecting plate and comprises a connecting block, a driving motor, a rotating shaft and a bristle body, the connecting block is connected to the connecting plate, the driving motor is connected to the connecting block, and the rotating shaft is connected to the bristle body. The rotating shaft is connected to the driving motor, and the bristle body is arranged on the rotating shaft in a sleeving manner; and the plurality of positioning pieces are connected to the bottom of the mounting frame, a positioning groove is formed by the plurality of positioning pieces in a surrounding mode, the PCB is located in the positioning groove, and the board brushing piece is located over the positioning pieces. According to the PCB cleaning device, the board brushing piece can be adjusted according to the thickness of a PCB, the applicability is high, when cleaning is needed, the driving motor drives the rotating shaft to rotate so as to drive the bristle body to rotate, the bristle body slightly sweeps the PCB, the surface of the PCB cannot be damaged, and meanwhile dust on the PCB is cleaned away.
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Description

Technical Field

[0001] This utility model belongs to the field of PCB brushing machine technology, and in particular relates to an automatic PCB brushing machine. Background Technology

[0002] The main function of an automatic PCB brushing machine is to automatically complete the brushing operation, which involves uniformly applying chemical substances (such as etchants and solder resists) to the PCB surface, or cleaning and brushing the PCB to remove dirt, grease, oxides, or other impurities from the board surface. This function is crucial in the production process of electronic products because it directly affects the quality of subsequent processes and the reliability of the product.

[0003] However, current PCB cleaning machines cannot adjust the thickness between the brush bristles and the PCB according to the thickness of the PCB, resulting in poor applicability. At the same time, the dust that has already been cleaned accumulates on the bottom of the PCB and is easy to re-adhere to the PCB, affecting the cleaning effect. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that current PCB cleaning machines cannot adjust the thickness between the brush bristles and the PCB according to the thickness of the PCB, resulting in poor applicability. At the same time, the dust that has been cleaned accumulates on the bottom of the PCB and is easy to re-adhere to the PCB, affecting the cleaning effect. Therefore, an automatic PCB cleaning machine is proposed.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an automatic PCB brushing machine, comprising:

[0006] A workbench is provided with an installation frame. A connecting plate is provided on the inner wall of the installation frame. The brush plate component is adjustablely connected to the connecting plate. The brush plate component includes a connecting block, a drive motor, a rotating shaft, and a brush bristle body. The connecting block is connected to the connecting plate, the drive motor is connected to the connecting block, the rotating shaft is connected to the drive motor, and the brush bristle body is sleeved on the rotating shaft.

[0007] The device includes several positioning components connected to the bottom of the mounting frame, with the positioning components forming a positioning groove. The PCB board is located within the positioning groove, and the brush board is located directly above the positioning components.

[0008] As a further description of the above technical solution:

[0009] The connecting plate is provided with a number of connecting holes arranged in a matrix, and the connecting block is provided with a number of fixing holes, through which screws are connected to the connecting holes.

[0010] As a further description of the above technical solution:

[0011] The bottom of the mounting frame has several positioning elements arranged diagonally.

[0012] As a further description of the above technical solution:

[0013] The positioning component includes a fixing block, a telescopic cylinder, and a positioning plate. The fixing block is connected to the bottom of the mounting frame, the telescopic cylinder is connected to the fixing block, and the positioning plate is connected to the telescopic cylinder.

[0014] As a further description of the above technical solution:

[0015] The positioning plate is L-shaped, and the telescopic cylinder is connected to the middle position on the back of the positioning plate.

[0016] As a further description of the above technical solution:

[0017] It also includes several industrial mini vacuum cleaners, which are arranged diagonally at the bottom of the mounting frame, and the industrial mini vacuum cleaners and the positioning components are arranged in a crisscross pattern.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting a connecting plate on the inner wall of the mounting frame, the brush plate component can adjust the distance between the brush bristles and the PCB board by adjusting the position of the connecting hole fixed on the connecting plate by adjusting the connecting block. This allows the brush plate component to be adjusted according to the thickness of the PCB board, making it highly adaptable. When cleaning is required, the drive motor drives the rotating shaft to rotate, thereby causing the brush bristles to rotate and gently sweep the PCB board. This will not damage the surface of the PCB board while cleaning the dust on the PCB board.

[0020] 2. In this utility model, by setting an installation frame on the workbench, and setting several positioning components and several industrial mini vacuum cleaners at the bottom of the installation frame, the telescopic cylinders on the positioning components extend and retract to drive the positioning plate to move, so as to position PCBs of different sizes, so as to meet the positioning of PCBs of different sizes. At the same time, in conjunction with the industrial mini vacuum cleaners arranged intersecting with the positioning components, the dust in the PCB cleaning process can be sucked up and collected to avoid affecting the brushing effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A three-dimensional PCB automatic board brushing machine Figure 1 .

[0023] Figure 2 A three-dimensional PCB automatic board brushing machine Figure 2 .

[0024] Figure 3 This is a cross-sectional view of an automatic PCB brushing machine.

[0025] Legend:

[0026] 1-Workbench; 2-Mounting frame; 3-Connecting plate; 4-Brush plate; 41-Connecting block; 42-Drive motor; 43-Rotating shaft; 44-Brush body; 5-Positioning component; 51-Fixing block; 52-Telescopic cylinder; 53-Positioning plate; 6-Connecting hole; 7-Fixing hole; 8-Industrial mini vacuum cleaner. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of the embodiments of this utility model, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Please see Figure 1-3 This utility model provides a technical solution: an automatic PCB brushing machine, comprising:

[0034] A workbench 1 is provided with an installation frame 2. The inner wall of the installation frame 2 is provided with a connecting plate 3. The brush plate component 4 is adjustablely connected to the connecting plate 3. The brush plate component 4 includes a connecting block 41, a drive motor 42, a rotating shaft 43, and a bristle body 44. The connecting block 41 is connected to the connecting plate 3, the drive motor 42 is connected to the connecting block 41, the rotating shaft 43 is connected to the drive motor 42, and the bristle body 44 is sleeved on the rotating shaft 43.

[0035] The mounting frame 2 is equipped with several positioning components 5, which are connected to the bottom of the mounting frame 2. The positioning components 5 form a positioning groove, the PCB board is located in the positioning groove, and the brush board 4 is located directly above the positioning components 5.

[0036] The connecting plate 3 has a plurality of connecting holes 6 arranged in a matrix, and the connecting block 41 has a plurality of fixing holes 7. Screws pass through the fixing holes 7 and are connected to the connecting holes 6. The distance between the brush bristles and the PCB board can be adjusted to make it suitable for PCB boards of different thicknesses, avoiding scratches on the PCB board due to being too close, and avoiding failure to clean the PCB board due to being too far away.

[0037] The mounting frame 2 has several positioning elements 5 arranged diagonally at its bottom. This improves the positioning accuracy of the PCB board and prevents the PCB board from shaking during the brushing process.

[0038] The positioning component 5 includes a fixing block 51, a telescopic cylinder 52, and a positioning plate 53. The fixing block 51 is connected to the bottom of the mounting frame 2, the telescopic cylinder 52 is connected to the fixing block 51, and the positioning plate 53 is connected to the telescopic cylinder 52.

[0039] The positioning plate 53 is L-shaped, and the telescopic cylinder 52 is connected to the middle of the back of the positioning plate 53. The width and length of the positioning groove can be adjusted to accommodate the positioning of PCBs of different sizes.

[0040] Several industrial mini vacuum cleaners 8 are also provided. The several industrial mini vacuum cleaners 8 are arranged on the diagonal line at the bottom of the mounting frame 2. The several industrial mini vacuum cleaners 8 and the several positioning parts 5 are arranged in a crisscross manner, which can realize the suction and collection of dust during the PCB board cleaning process and avoid affecting the brushing effect.

[0041] Working Principle: By setting a connecting plate on the inner wall of the mounting frame, the distance between the brush bristles and the PCB board can be adjusted by adjusting the position of the connecting holes fixed to the connecting block on the connecting plate. This allows the brush bristles to be adjusted according to the thickness of the PCB board, making it highly adaptable. When cleaning is required, the drive motor drives the rotating shaft to rotate, thereby rotating the brush bristles to gently sweep the PCB board without damaging the PCB board surface, while also cleaning the dust off the PCB board. At the same time, by setting a mounting frame on the worktable, and setting several positioning components and several industrial mini vacuum cleaners at the bottom of the mounting frame, the telescopic cylinders on the positioning components extend and retract, driving the positioning plate to move, thus positioning PCB boards of different sizes. This allows it to meet the positioning needs of PCB boards of different sizes. In addition, the industrial mini vacuum cleaners, which are arranged in a crisscross pattern with the positioning components, can pick up and collect dust during the PCB board cleaning process, preventing it from affecting the brushing effect.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic PCB brushing machine, characterized in that, include: A workbench is provided with an installation frame. A connecting plate is provided on the inner wall of the installation frame. The brush plate component is adjustablely connected to the connecting plate. The brush plate component includes a connecting block, a drive motor, a rotating shaft, and a brush bristle body. The connecting block is connected to the connecting plate, the drive motor is connected to the connecting block, the rotating shaft is connected to the drive motor, and the brush bristle body is sleeved on the rotating shaft. The device includes several positioning components connected to the bottom of the mounting frame, with the positioning components forming a positioning groove. The PCB board is located within the positioning groove, and the brush board is located directly above the positioning components.

2. The PCB automatic board brushing machine according to claim 1, characterized in that, The connecting plate is provided with a number of connecting holes arranged in a matrix, and the connecting block is provided with a number of fixing holes, through which screws are connected to the connecting holes.

3. The PCB automatic board brushing machine according to claim 1, characterized in that, The bottom of the mounting frame has several positioning elements arranged diagonally.

4. The PCB automatic board brushing machine according to claim 3, characterized in that, The positioning component includes a fixing block, a telescopic cylinder, and a positioning plate. The fixing block is connected to the bottom of the mounting frame, the telescopic cylinder is connected to the fixing block, and the positioning plate is connected to the telescopic cylinder.

5. The PCB automatic board brushing machine according to claim 4, characterized in that, The positioning plate is L-shaped, and the telescopic cylinder is connected to the middle position on the back of the positioning plate.

6. The PCB automatic board brushing machine according to claim 1, characterized in that, It also includes several industrial mini vacuum cleaners, which are arranged diagonally at the bottom of the mounting frame, and the industrial mini vacuum cleaners and the positioning components are arranged in a crisscross pattern.