PCB etching liquid uniform spraying device

Abstract

The utility model relates to circuit board technical field, concretely is a kind of PCB etching liquid uniform spraying device, including operation box, the inner side wall of operation box is equipped with supporting assembly, the left side surface of operation box is equipped with adjusting assembly, and the outer surface of adjusting assembly is equipped with spraying assembly. The utility model is through the cooperation of supporting assembly and adjusting assembly, not only can make the PCB board in spraying strengthen fixed effect, simultaneously subsequent can be completed the spraying operation evenly to PCB board, overall operation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically to a device for uniformly spraying PCB board etching solution. Background Technology

[0002] Printed circuit board etching refers to the process of selectively etching away excess copper foil after forming a resist circuit pattern on the surface of a copper-clad laminate on a PCB to obtain a conductor pattern.

[0003] In response, existing patent publication number CN221948470U discloses a PCB etching device, relating to the field of circuit board technology. This PCB etching device includes an etching solution return tank with an opening at the top; a support platform for supporting the PCB, mounted on the opening; two moving mechanisms for driving the PCB to move on the support platform, arranged opposite each other on either side of the support platform; two spraying mechanisms, arranged opposite each other, positioned above and below the support platform; and a negative pressure mechanism fixed to the opening, generating negative pressure to draw fluid from the PCB to the negative pressure mechanism. The spraying mechanism sprays etching solution through nozzles, and the negative pressure mechanism, by creating negative pressure, causes the etching solution on the PCB surface to flow towards the edges, achieving uniform etching of the PCB. By using the negative pressure mechanism to direct the etching solution to the edges of the PCB, a "pool" is prevented from forming on the PCB surface, thus avoiding obstruction of the replacement of old and new etching solution and improving the etching quality of the PCB board.

[0004] However, in practical use, the left and right sides of the PCB board cannot be restricted during the spraying operation, and the etching solution on the PCB board surface cannot be quickly circulated during the subsequent spraying process, thus limiting the overall etching operation. Therefore, improving and resolving these issues is an urgent problem to be solved. Utility Model Content

[0005] The purpose of this utility model is to provide a PCB board etching solution uniform spraying device to solve the problems mentioned in the background art, which are that the left and right sides of the PCB board cannot be limited during the spraying operation, and the etching solution on the PCB board surface cannot be quickly flowed during the subsequent spraying process, thus limiting the overall etching operation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a PCB board etching solution uniform spraying device, including an operation box, a support component installed on the inner side wall of the operation box, an adjustment component installed on the left side surface of the operation box, and a spraying component installed on the outer surface of the adjustment component. The support assembly includes a support plate, which is installed on the inner wall of the control box. An intermediate plate is installed on the inner side wall of the support plate, a side plate is installed on the top surface of the support plate, and a threaded column is installed inside the side plate. The adjustment assembly includes a mounting frame, which is mounted on the left side surface of the control box. A first lead screw is mounted on the inner side wall of the mounting frame, and a sliding plate is mounted on the outer surface of the first lead screw. A drive motor is disposed through the back of the first lead screw and through its interior.

[0007] Preferably, a connecting plate is fixedly connected to the right side of the sliding plate, and a liquid storage tank is installed on the top surface of the connecting plate.

[0008] Preferably, the spray assembly includes a spray frame, which is installed on the lower surface of the liquid storage tank, and spray holes are evenly distributed at the lower end of the spray frame.

[0009] Preferably, a side frame is fixedly connected to the front surface of the connecting plate, and a mounting bracket is installed at the lower end of the side frame.

[0010] Preferably, a bidirectional lead screw is installed on the lower inner wall of the mounting bracket, and a mounting motor is installed on the right side of the bidirectional lead screw.

[0011] Preferably, the outer surface of the bidirectional lead screw is provided with a movable sleeve, which is slidably installed at the lower end of the mounting bracket.

[0012] Preferably, a fan body is installed at the lower end of the movable sleeve, and two sets of fan bodies are provided, with the positions of the two sets of fan bodies being symmetrical to each other.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This PCB board etching solution uniform spraying device, through the cooperation of support components and adjustment components, not only strengthens the fixation effect of the PCB board during spraying, but also enables the PCB board to be uniformly sprayed in the subsequent process, making the overall operation relatively convenient.

[0014] 2. The PCB board etching solution uniform spraying device, through the spraying component, enables the PCB board surface to flow evenly from the center to the edge, ensuring that a "pool" is formed on the PCB board surface to hinder the replacement of old and new etching solutions, thereby improving the etching quality of the PCB board. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the support plate structure of this utility model; Figure 3 This is a three-dimensional schematic diagram of the mounting frame and sliding plate structure of this utility model; Figure 4 This is a three-dimensional schematic diagram of the sliding plate and connecting plate structure of this utility model; Figure 5 This is a schematic diagram showing the disassembled side frame and bidirectional lead screw structure of this utility model.

[0016] In the diagram: 1. Control box; 2. Support plate; 3. Middle plate; 4. Side plate; 5. Threaded column; 6. Mounting frame; 7. First lead screw; 8. Sliding plate; 9. Drive motor; 10. Connecting plate; 11. Liquid storage tank; 12. Spray frame; 13. Side frame; 14. Mounting frame; 15. Mounting motor; 16. Bidirectional lead screw; 17. Movable sleeve; 18. Fan body. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-5 One embodiment provided by this utility model: A uniform spraying device for PCB board etching solution is provided. The drive motor 9, liquid storage tank 11, spray frame 12, mounting motor 15 and fan body 18 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are existing technologies known to those skilled in the art, so they will not be described in detail here. It includes an operation box 1. A support component is installed on the inner side wall of the operation box 1. An adjustment component is installed on the left side surface of the operation box 1. A spraying component is installed on the outer surface of the adjustment component. The support assembly includes a support plate 2, which is installed on the inner wall of the control box 1. A middle plate 3 is installed on the inner side wall of the support plate 2, and a side plate 4 is installed on the top surface of the support plate 2. A threaded column 5 is installed inside the side plate 4. Both the side plate 4 and the threaded column 5 are made of aluminum alloy and have corrosion resistance. The adjustment assembly includes a mounting frame 6, which is installed on the left side surface of the operating box 1. A first lead screw 7 is installed on the inner wall of the mounting frame 6, and a sliding plate 8 is installed on the outer surface of the first lead screw 7. A drive motor 9 is installed through the back of the first lead screw 7. When the PCB board is placed on the outer surface of the support plate 2, the left and right sides of the PCB board will abut against the inner wall of the side plate 4. Then, by turning the threaded post 5, the threaded post 5 will abut against the left and right sides of the PCB board again, thus limiting and fixing the PCB board as a whole. This prevents shaking when the PCB board is sprayed with etching solution, resulting in better overall performance.

[0019] The spray assembly includes a spray frame 12, which is mounted on the lower surface of the liquid storage tank 11. Spray holes are evenly distributed at the lower end of the spray frame 12. A connecting plate 10 is fixedly connected to the right side of the sliding plate 8, and the liquid storage tank 11 is mounted on the top surface of the connecting plate 10. During the spraying operation, the drive motor 9 is activated, which rotates the first lead screw 7. The sliding plate 8 on the surface of the first lead screw 7 then moves back and forth inside the mounting frame 6. This movement of the sliding plate 8 moves the connecting plate 10, the liquid storage tank 11, and the spray frame 12. Etching solution is then supplied to the spray frame 12 through the liquid storage tank 11 and discharged through the spray holes at the lower end of the spray frame 12. This allows for a uniform spraying operation on the PCB board placed on the support plate 2. Therefore, this setup, through the cooperation of the support and adjustment components, not only strengthens the fixation of the PCB board during spraying but also ensures a uniform spraying operation on the PCB board, making the overall operation convenient.

[0020] A side frame 13 is fixedly connected to the front surface of the connecting plate 10, and a mounting bracket 14 is installed at the lower end of the side frame 13. A double-acting screw 16 is installed on the inner wall of the lower end of the mounting bracket 14, and a mounting motor 15 is installed on the right side of the double-acting screw 16. A movable sleeve 17 is provided on the outer surface of the double-acting screw 16, and the movable sleeve 17 is slidably installed at the lower end of the mounting bracket 14. A fan body 18 is installed at the lower end of the movable sleeve 17. Two sets of fan bodies 18 are provided, and the positions of the two sets of fan bodies 18 are symmetrical. When the sliding plate 8 moves the connecting plate 10 and the spray frame 12 to spray evenly, it also moves the side frame 13. Then, by starting the mounting motor 15, the bidirectional lead screw 16 rotates. The two sets of movable sleeves 17 on the surface of the bidirectional lead screw 16 and the fan body 18 move in different directions, causing the fan body 18 to move in different directions as well. At this time, the fan body 18 can blow air at an angle, thus agitating and flowing the etching solution sprayed on the PCB board surface, thereby accelerating the uniform etching of the PCB board. Therefore, this setup, through the spray assembly, ensures that the PCB board surface flows evenly from the center to the edges, ensuring that a "pool" is formed on the PCB board surface to hinder the replacement of old and new etching solutions, improving the etching quality of the PCB board. At this time, the fan body 18 can blow air simultaneously from the center of the PCB board to the left and right sides, causing the etching solution on the surface to flow. The fan body 18 is connected to external cables, and the airflow is at an angle.

[0021] Working principle: When the operator uses this device, first connect the device to an external power source to provide power. Then, place the PCB board on the outer surface of the support plate 2. The left and right sides of the PCB board will then abut against the inner side wall of the side plate 4. Then, by turning the threaded post 5, the threaded post 5 will again abut against the left and right side surfaces of the PCB board, thus limiting and fixing the PCB board as a whole. This prevents shaking when the PCB board is sprayed with etching solution, resulting in better overall performance. When the spraying operation is performed, the drive motor 9 is started, which drives the first lead screw 7 to rotate. The sliding plate 8 on the surface of the first lead screw 7 will move back and forth inside the mounting frame 6. When the sliding plate 8 moves back and forth, it can drive the connecting plate 10, the liquid storage tank 11, and the spray frame 12 to move. At this time, the liquid storage tank 11 delivers etching solution into the spray frame 12, and then discharges it through the spray hole at the lower end of the spray frame 12, thus enabling a uniform spraying operation on the PCB board placed on the surface of the support plate 2. When the sliding plate 8 moves the connecting plate 10 and the spray frame 12 to spray evenly, it also moves the side frame 13. Then, by starting the mounting motor 15, the bidirectional lead screw 16 can be rotated. Then, the two sets of movable sleeves 17 on the surface of the bidirectional lead screw 16 and the fan body 18 will move in different directions, thereby driving the fan body 18 to move in different directions. At this time, the fan body 18 can blow air at an angle, thereby blowing and flowing the etching liquid sprayed on the PCB board surface, thereby accelerating the uniform etching of the PCB board. The above is the working principle of the left and right sides of this utility model.

[0022] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A PCB board etching solution uniform spraying device, comprising an operation box (1), characterized in that: The inner wall of the operation box (1) is equipped with a support assembly, the left side surface of the operation box (1) is equipped with an adjustment assembly, and the outer surface of the adjustment assembly is equipped with a spray assembly. The support assembly includes a support plate (2), which is installed on the inner wall of the operating box (1). An intermediate plate (3) is installed on the inner side wall of the support plate (2), and a side plate (4) is installed on the top surface of the support plate (2). A threaded column (5) is installed inside the side plate (4). The adjustment assembly includes a mounting frame (6), which is mounted on the left side surface of the operation box (1). A first lead screw (7) is mounted on the inner side wall of the mounting frame (6). A sliding plate (8) is mounted on the outer surface of the first lead screw (7). A drive motor (9) is provided through the back of the first lead screw (7).

2. The PCB board etching solution uniform spraying device according to claim 1, characterized in that: A connecting plate (10) is fixedly connected to the right side of the sliding plate (8), and a liquid storage tank (11) is installed on the top surface of the connecting plate (10).

3. The PCB board etching solution uniform spraying device according to claim 1, characterized in that: The spray assembly includes a spray frame (12), which is installed on the lower surface of the liquid storage tank (11), and spray holes are evenly provided at the lower end of the spray frame (12).

4. The PCB board etching solution uniform spraying device according to claim 2, characterized in that: A side frame (13) is fixedly connected to the front surface of the connecting plate (10), and a mounting bracket (14) is installed at the lower end of the side frame (13).

5. The PCB board etching solution uniform spraying device according to claim 4, characterized in that: A bidirectional lead screw (16) is installed on the lower inner wall of the mounting bracket (14), and a mounting motor (15) is installed on the right side of the bidirectional lead screw (16).

6. The PCB board etching solution uniform spraying device according to claim 5, characterized in that: The outer surface of the bidirectional lead screw (16) is provided with a movable sleeve (17), which is slidably installed at the lower end of the mounting bracket (14).

7. The PCB board etching solution uniform spraying device according to claim 6, characterized in that: The lower end of the movable sleeve (17) is equipped with a fan body (18), and there are two sets of fan bodies (18), and the positions of the two sets of fan bodies (18) are symmetrical to each other.

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