Electroplating liquid medicine mixing equipment for circuit board processing

Abstract

The utility model discloses electroplating liquid medicine mixing equipment for circuit board processing, which belongs to the field of circuit board processing and comprises a working table, a reciprocating screw rod and a fixing plate are arranged on the working table, a mixing box is movably arranged on the reciprocating screw rod and the fixing plate, a stirring rod is rotatably arranged in the mixing box and comprises a stirring paddle and a scraper blade, and the scraper blade is arranged on the stirring paddle. A discharging pipe is arranged at the bottom of the mixing box, a liquid medicine box is embedded in the workbench, a filter screen is movably placed on the top of the liquid medicine box, the cross section area of the discharging pipe is smaller than that of the filter screen, an electromagnetic valve is arranged in the discharging pipe, a liquid adding pipe is arranged at the bottom of the liquid medicine box in a communicated mode, and a flow adjusting valve is arranged on the liquid adding pipe. Reaction residues attached to the inner wall can be scraped into the discharging pipe to be discharged together, the residues are filtered by the filter screen, the mixing box can be regularly moved upwards, the filter screen is exposed and taken out to pour out the filtered residues through the reciprocating lead screw and the fixing plate, and the amount of added liquid medicine can be controlled through the flow adjusting valve.

Description

Technical Field

[0001] The utility model relates to the field of circuit board processing, in particular to an electroplating solution mixing device for circuit board processing. Background Art

[0002] A PCB is a support for electronic components and also a conductive path for connecting electronic components. The processing of PCB circuit boards involves multiple steps, including design, manufacturing, material selection, etc. Each link has a direct impact on the performance and reliability of the final product.

[0003] Electroplating solutions play a crucial role in the processing of circuit boards (PCBs). They usually contain metal salts and other additives, such as copper sulfate, zinc sulfate, or nickel sulfate, etc. These chemical substances can form a metal coating on the surface of the PCB to create conductive paths on the circuit board. Electroplating solutions are mainly used to fill holes, strengthen connections, and protect the surface of the circuit board during the PCB manufacturing process.

[0004] In the process of mixing the solutions, free copper ions are obtained by the reaction of pure copper balls with pure hydrochloric acid and pure sulfuric acid. Reaction residues will be generated during the mixing process. The existing electroplating solution mixing devices lack a filtering component and are not convenient for disposing of the filtered residues at any time, resulting in the accumulation of residues in the mixing tank, which has an adverse effect and affects the mixing effect. Moreover, the flow rate of the electroplating solution is not controlled during liquid discharge, resulting in an inability to control the amount of solution added during circuit board processing. Summary of the Utility Model

[0005] In order to solve the above technical problems that the existing electroplating solution mixing device lacks a filtering component and is not convenient for disposing of the filtered residues at any time, resulting in the accumulation of residues in the mixing tank, which has an adverse effect and affects the mixing effect, and the flow rate of the electroplating solution is not controlled during liquid discharge, resulting in an inability to control the amount of solution added during circuit board processing, the utility model provides an electroplating solution mixing device for circuit board processing.

[0006] An electroplating solution mixing device for circuit board processing includes a workbench. A reciprocating lead screw and a fixing plate are arranged on the workbench. A mixing tank is movably arranged on the reciprocating lead screw and the fixing plate. A stirring rod is rotatably arranged inside the mixing tank. The stirring rod includes a stirring paddle and a scraping plate. A discharge pipe is arranged at the bottom of the mixing tank. A medicine tank is embedded in the workbench. A filter screen is movably placed on the top of the medicine tank. The cross-sectional area of the discharge pipe is smaller than that of the filter screen, and a solenoid valve is arranged inside it. A liquid adding pipe is communicated with the bottom of the medicine tank, and a flow regulating valve is arranged on the liquid adding pipe.

[0007] Furthermore, the workbench includes a cross plate. Support columns are fixedly arranged on the bottom wall of the cross plate. The medicine tank is fixedly embedded in the cross plate and has an upward-opening structure. An L-shaped plate and a fixing plate are fixedly arranged on the top wall of the cross plate.

[0008] Further, the bottom end of the reciprocating lead screw is rotatably arranged on the top wall of the cross plate, the top end penetrates through the L-shaped plate and is fixedly connected to the output shaft of the servo motor. A chute is arranged on the inner wall of the fixed plate. A group of limit rings are fixedly arranged on the reciprocating lead screw. Threads are arranged on the outer wall between the group of limit rings, and the distance between the group of limit rings is the same as the length of the chute.

[0009] Further, a feed hopper with a cover is arranged through the top wall of the mixing tank. Another servo motor is arranged on the top wall of the mixing tank. A group of extension blocks are symmetrically arranged on the side wall of the mixing tank. The group of extension blocks are respectively slidably arranged on the outer periphery of the thread of the reciprocating lead screw and on the chute.

[0010] Further, the stirring rod includes a rotating shaft fixedly arranged at the output end of another servo motor. Stirring paddles are fixedly and symmetrically arranged on the outer wall of the rotating shaft. A scraper is fixedly arranged at the outer end of the stirring paddle. A soft brush is fixedly arranged on the side of the scraper close to the inner wall of the mixing tank, and the soft brush is slidably connected to the inner wall of the mixing tank.

[0011] Further, the bottom of the mixing tank is a conical bottom wall, and a number of support columns are fixedly arranged. The discharge pipe is arranged at the conical bottom of the mixing tank and can enter and exit the top opening of the medicine water tank.

[0012] Further, a U-shaped hanging frame is fixedly arranged on the outer side wall of the filter screen. The U-shaped hanging frame can be movably hung on the top wall of the medicine water tank for convenient disassembly. The flow regulating valve can regulate the flow rate of the medicine water flowing through the inside of the liquid adding pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the stirring rod rotates and stirs, it can synchronously drive the scraper to scrape the inner wall of the mixing tank, scrape the reaction residues attached to the inner wall into the discharge pipe and discharge them together. The residues are filtered by the filter screen, the medicine water flows through the filter screen and into the medicine water tank below, and the circuit board is added with medicine water for production through the liquid adding pipe. The reciprocating lead screw and the fixed plate can be used to regularly move the mixing tank upward, expose the filter screen and take it out to pour out the filtered residues for convenient reuse, and the amount of added medicine water can be controlled by the flow regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view schematic diagram of the structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of part of the structure A of the present utility model;

[0016] Figure 3 It is a schematic diagram of part of the structure B of the present utility model.

[0017] In the figure: 1, workbench; 2, reciprocating lead screw; 3, fixed plate; 4, mixing tank; 5, stirring rod; 6, stirring paddle; 7, scraper; 8, discharge pipe; 9, medicine water tank; 10, filter screen; 11, solenoid valve; 12, liquid adding pipe; 13, flow regulating valve; 14, cross plate; 15, support column; 16, L-shaped plate; 17, servo motor; 18, chute; 19, limiting ring; 20, feed hopper; 21, extension block; 22, rotating shaft; 23, soft brush; 24, U-shaped hanging rack. Detailed implementation manners

[0018] In order to enable those skilled in the art of this technology to better understand the solution of this utility model, the following will clearly and completely describe the technical solutions in the embodiments of this utility model with reference to the accompanying drawings in the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, rather than all of the embodiments. Based on the embodiments in this utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this utility model.

[0019] It should be noted that the terms "first", "second", etc. in the description and claims of this utility model and the above-mentioned accompanying drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of this utility model here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0020] In this utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly used to better describe this utility model and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0021] And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances. In addition, the meaning of the term "a plurality" should be two or more.

[0022] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The following will refer to the attached drawings Figures 1 - 3 and describe the present utility model in detail in combination with the embodiments.

[0023] An electroplating solution mixing device for circuit board processing includes a workbench 1. A reciprocating lead screw 2 and a fixing plate 3 are arranged on the workbench 1. The workbench 1 includes a cross plate 14. A support column 15 is fixedly arranged on the bottom wall of the cross plate 14, which can play a supporting role. The medicine tank 9 is embedded and fixed on the cross plate 14 and has an upward-opening structure. An L-shaped plate 16 and a fixing plate 3 are fixedly arranged on the top wall of the cross plate 14.

[0024] By using the reciprocating lead screw 2 and the fixing plate 3, the mixing tank 4 can move up and down relative to the medicine tank 9, which is convenient for quickly exposing the filter screen 10 in the medicine tank 9 and convenient for taking it out to pour out the reaction residues.

[0025] A mixing tank 4 is movably arranged on the reciprocating lead screw 2 and the fixing plate 3. The bottom end of the reciprocating lead screw 2 is rotatably arranged on the top wall of the cross plate 14, and the top end penetrates through the L-shaped plate 16 and is fixedly connected to the output shaft of the servo motor 17. A chute 18 is arranged on the inner wall of the fixing plate 3. A group of limiting rings 19 are fixedly arranged on the reciprocating lead screw 2. The outer wall between the group of limiting rings 19 has a thread, and the distance between the group of limiting rings 19 is the same as the length of the chute 18.

[0026] Start the servo motor 17 to drive the reciprocating lead screw 2 to rotate, and then drive the mixing tank 4 to move up and down along the reciprocating lead screw 2. Since a group of extension blocks 21 are symmetrically arranged on the side wall of the mixing tank 4, and the group of extension blocks 21 are respectively slidably arranged on the outer periphery of the thread of the reciprocating lead screw 2 and the chute 18, the group of extension blocks 21 can be driven to move up and down along the outer periphery of the thread of the reciprocating lead screw 2 and the chute 18 at the same time. That is to say, the mixing tank 4 can be separated from and close to the medicine tank 9, which is convenient for exposing the filter screen 10 and for the medicine to flow into the medicine tank 9.

[0027] A feed hopper 20 with a cover is arranged through the top wall of the mixing tank 4. The medicine and additives to be mixed can be added into the mixing tank 4 through the feed hopper 20. Another servo motor 17 is arranged on the top wall of the mixing tank 4. A stirring rod 5 is rotatably arranged inside the mixing tank 4. The stirring rod 5 includes a stirring paddle 6 and a scraping plate 7. The stirring rod 5 includes a rotating shaft 22 fixedly arranged on the output end of the other servo motor 17. The stirring paddles 6 are fixedly and symmetrically arranged on the outer wall of the rotating shaft 22, and a scraping plate 7 is fixedly arranged at the outer end of the stirring paddle 6.

[0028] Start the servo motor 17 to drive the rotating shaft 22 to rotate, thereby driving the stirring paddle 6 and the scraper 7 to rotate simultaneously. Since a soft brush 23 is fixedly arranged on one side of the scraper 7 close to the inner wall of the mixing tank 4, and the soft brush 23 is slidably connected to the inner wall of the mixing tank 4, the soft brush 23 and the inner wall of the mixing tank 4 slide against each other during rotation, and the reaction residues adhered to the inner wall can be brushed off and fall onto the lower discharge pipe 8.

[0029] A discharge pipe 8 is arranged at the bottom of the mixing tank 4. The bottom of the mixing tank 4 is a conical bottom wall, and a number of support columns 15 are fixedly arranged. The discharge pipe 8 is arranged at the conical bottom of the mixing tank 4 and can enter and exit the top opening of the medicine water tank 9. An electromagnetic valve 11 is arranged inside the discharge pipe 8. After the stirring and mixing are completed, the electromagnetic valve 11 is opened, and the medicine water mixed with the reaction residues falls onto the filter screen 10 together. The reaction residues are filtered above by the filter screen 10, and the medicine water falls into the interior of the lower medicine water tank 9 along the mesh holes of the filter screen 10.

[0030] A medicine water tank 9 is embedded in the workbench 1. The filter screen 10 is placed movably on the top of the medicine water tank 9. The cross-sectional area of the discharge pipe 8 is smaller than that of the filter screen 10. A U-shaped hanging rack 24 is fixedly arranged on the outer side wall of the filter screen 10, and the U-shaped hanging rack 24 is movably hung on the top wall of the medicine water tank 9 for convenient disassembly. A liquid adding pipe 12 is arranged in communication with the bottom of the medicine water tank 9, and a flow regulating valve 13 is arranged on the liquid adding pipe 12. The flow regulating valve 13 can regulate the flow rate of the medicine water flowing through the interior of the liquid adding pipe 12.

[0031] The medicine water inside the medicine water tank 9 can be added to the required place during the circuit board processing according to the required amount under the control of the flow regulating valve 13. The reciprocating lead screw 2 and the fixing plate 3 can be used in time to lift the mixing tank 4 to expose the filter screen 10, and take out the filter screen 10 from the top of the medicine water tank 9 through the U-shaped hanging rack 24, pour out the filtered reaction residues, clean them, and then hang them on the top wall of the medicine water tank 9 again for convenient reuse. Then, put down the mixing tank 4 to make it mix again.

[0032] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, various changes and modifications can be made to the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A device for mixing electroplating liquid for processing circuit boards, comprising a workbench (1), characterized in that: A reciprocating screw (2) and a fixed plate (3) are arranged on the workbench (1); a mixing box (4) is movably arranged on the reciprocating screw (2) and the fixed plate (3); a stirring rod (5) is rotatably arranged inside the mixing box (4); the stirring rod (5) comprises a stirring paddle (6) and a scraper (7); a discharge pipe (8) is arranged at the bottom of the mixing box (4); a medicine liquid box (9) is embedded in the workbench (1); a filter screen (10) is movably placed on the top of the medicine liquid box (9); the cross-sectional area of ​​the discharge pipe (8) is smaller than the cross-sectional area of ​​the filter screen (10), and a solenoid valve (11) is arranged inside the discharge pipe (8); a liquid adding pipe (12) is arranged at the bottom of the medicine liquid box (9); and a flow regulating valve (13) is arranged on the liquid adding pipe (12).

2. The electroplating solution mixing equipment for circuit board processing according to claim 1 is characterized in that: The workbench (1) comprises a horizontal plate (14), a support column (15) is fixedly arranged on the bottom wall of the horizontal plate (14), a medicine liquid box (9) is embedded and fixed on the horizontal plate (14) and is an upwardly opened structure, and an L-shaped plate (16) and a fixing plate (3) are fixedly arranged on the top wall of the horizontal plate (14).

3. The electroplating solution mixing equipment for circuit board processing according to claim 2, characterized in that: The bottom end of the reciprocating screw rod (2) is rotatably arranged on the top wall of the horizontal plate (14), and the top end penetrates the L-shaped plate (16) and is fixedly connected to the output shaft of the servo motor (17). The inner wall of the fixed plate (3) is provided with a slide groove (18). A group of limiting rings (19) are fixedly arranged on the reciprocating screw rod (2). The outer walls of the group of limiting rings (19) are provided with threads, and the distance between the group of limiting rings (19) is consistent with the length of the slide groove (18).

4. The electroplating solution mixing equipment for circuit board processing according to claim 3 is characterized in that: A feed hopper (20) with a cover is arranged through the top wall of the mixing box (4), another servo motor (17) is arranged on the top wall of the mixing box (4), and a group of extension blocks (21) are symmetrically arranged on the side wall of the mixing box (4), and the group of extension blocks (21) are respectively slidably arranged on the threaded periphery of the reciprocating screw (2) and the slide groove (18).

5. The electroplating solution mixing equipment for circuit board processing according to claim 4 is characterized in that: The stirring rod (5) comprises a rotating shaft (22) fixedly arranged on the output end of another servo motor (17), a stirring paddle (6) fixedly and symmetrically arranged on the outer wall of the rotating shaft (22), and a scraper (7) fixedly arranged on the outer end of the stirring paddle (6), a soft brush (23) fixedly arranged on one side of the scraper (7) close to the inner wall of the mixing box (4), and the soft brush (23) is slidably connected to the inner wall of the mixing box (4).

6. The electroplating solution mixing equipment for circuit board processing according to claim 5, characterized in that: The bottom of the mixing box (4) is a conical bottom wall and is fixedly provided with a plurality of support columns (15). The discharge pipe (8) is arranged at the conical bottom of the mixing box (4) and can enter and exit the top opening of the medicine liquid box (9).

7. The electroplating solution mixing equipment for circuit board processing according to claim 6, characterized in that: A U-shaped hanger (24) is fixedly arranged on the outer wall of the filter screen (10). The U-shaped hanger (24) can be movably hung on the top wall of the medicine box (9) for easy disassembly. The flow regulating valve (13) can regulate the flow of medicine flowing through the inside of the liquid adding pipe (12).

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