Ion removal device for tin plating solution

Abstract

The utility model relates to the technical field of electroplating processing, and discloses an ion removal device for a tin plating solution, which comprises a treatment tank and a fixed frame bolted at the top of the treatment tank, and further comprises a motor fixed on the left side of the fixed frame, the device disclosed by the utility model has a moving function, can increase the contact area and frequency of the electrode and ions in a tin plating solution by controlling the back-and-forth movement of the electrode when the ions in the tin plating solution are removed, so that the ion exchange or adsorption process is more sufficient and efficient, and the device also has a stirring function, so that the operation is more convenient. The tin plating solution can be stirred, the ion concentration gradient in the solution can be broken, ion distribution is more uniform, the ion removal efficiency and uniformity are further improved, through electrode movement and solution stirring, a plating layer can be more uniformly distributed on the metal surface, and the quality and appearance of the plating layer are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electroplating processing, in particular to an ion removal device for a tin plating solution. Background Art

[0002] Tin plating solution is a solution used to deposit a layer of metallic tin on the metal surface. The application field of tin plating solution is very wide, including but not limited to electronic components, electrical components, electrical equipment, power copper busbars, radiators, hardware parts, mechanical parts, molds, aerospace communication parts, etc. The tin plating layer can improve the corrosion resistance, decorative effect and weldability of the metal without affecting its conductivity. The removal of ions in the tin plating solution is an important link in the electroplating process and is crucial to ensuring the quality of the coating and the stability of the electroplating solution. The impurity ions in the tin plating solution will affect the uniformity, adhesion and other physical and chemical properties of the coating, so they must be removed to ensure the quality of the coating. The harmful ions in the tin plating solution will destroy the balance and stability of the electroplating solution, leading to problems in the electroplating process, such as graying, blistering, and peeling of the coating.

[0003] There are various methods for removing ions from tin-plating solutions. Among them, the electrodeposition method is to place an electrode in a solution containing ions to be deposited, and use the electrode potential difference to reduce these ions to solid metal deposits on the electrode. However, when using the electrodeposition method for ion removal, a static treatment method is often used, that is, the electrode and the tin-plating solution remain relatively static, which may lead to insufficient ion exchange or adsorption process, thereby affecting the ion removal efficiency. Under static conditions, the ion concentration gradient in the tin-plating solution may be more obvious, making it difficult to effectively remove ions in some areas, and the ion removal effect is poor. Utility Model Content

[0004] The utility model aims to provide an ion removal device for tin plating solution to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: an ion removal device for a tinning solution, comprising a treatment tank and a fixing frame bolted to the top of the treatment tank, and also comprising:

[0006] A motor is fixed on the left side of the fixing frame, the fixing frame is rotatably connected with a threaded rod inside, and the output shaft of the motor passes through the fixing frame and is fixedly connected with the left end of the threaded rod, a moving block is arranged in the middle of the fixing frame, and mounting plates are fixed on both the front and rear sides of the moving block, an ion removal electrode is fixed on one side of the bottom of the mounting plate, and the left and right sides of the surface of the threaded rod are movably connected with a linkage structure;

[0007] The mounting frame is arranged below the fixed frame. Fixed plates are bolted to the left and right sides of the front and rear sides of the mounting frame, and the top of the fixed plate is fixedly connected to the fixed frame. Pulley wheels are rotatably connected to the left and right sides of the bottom of the mounting frame, and conveyor belts are sleeved on the surfaces of the pulley wheels on the left and right sides. Moving platforms are arranged on the left and right sides below the mounting frame, and one side of the moving platform is fixedly connected to the surface of the conveyor belt. Stirring plates are fixed to the bottoms of the moving platforms.

[0008] Preferably, the thread on the surface of the threaded rod is a reciprocating thread, and the threaded rod passes through the moving block and is threadedly connected to the moving block.

[0009] Preferably, a limiting groove is formed in the top of the fixed frame. A limiting block is fixed to the top of the moving block, and the top of the limiting block extends into the interior of the limiting groove and is slidably connected to the inner wall of the limiting groove.

[0010] Preferably, the linkage structure includes a mounting shell, a first bevel gear, a second bevel gear and a rotating shaft. The mounting shell is sleeved on the surface of the threaded rod, and the threaded rod is rotatably connected to the mounting shell. The first bevel gear is rotatably connected to the right side of the inner wall of the mounting shell. The second bevel gear is rotatably connected to the bottom of the inner wall of the mounting shell. The rotating shaft is arranged through the bottom of the mounting shell, and the top end of the rotating shaft penetrates into the interior of the mounting shell and is fixedly connected to the bottom of the second bevel gear. The bottom end of the rotating shaft penetrates the mounting frame and is fixedly connected to the top of the pulley wheel.

[0011] Preferably, the top of the mounting shell is fixedly connected to the top of the inner wall of the fixed frame. The threaded rod passes through the first bevel gear and is fixedly connected to the first bevel gear, and the first bevel gear meshes with the second bevel gear.

[0012] Preferably, a guide rail is fixed to the bottom of the mounting frame. Rollers are rotatably connected to the four sides of the top of the moving platform. The rollers are in contact with the surface of the guide rail and are in rolling connection with the guide rail.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The present utility model has a moving function. When removing ions in the tin plating solution, by controlling the back-and-forth movement of the electrode, the contact area and frequency between the electrode and the ions in the tin plating solution are increased, making the ion exchange or adsorption process more sufficient and efficient. Moreover, the device also has a stirring function, which can stir the tin plating solution, helping to break the ion concentration gradient in the solution and making the ion distribution more uniform, thereby further improving the efficiency and uniformity of ion removal. Through the movement of the electrode and the stirring of the solution, the coating can be more evenly distributed on the metal surface, improving the quality and appearance of the coating. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0016] Figure 2 is a sectional view of the fixing frame in the present utility model;

[0017] Figure 3 is a three-dimensional schematic diagram of the mounting frame in the present utility model;

[0018] Figure 4 is a three-dimensional schematic diagram of the mounting frame from another perspective in the present utility model;

[0019] Figure 5 is a three-dimensional schematic diagram of the partial structure of the present utility model.

[0020] In the figure: 1, treatment tank; 2, fixing frame; 3, motor; 4, threaded rod; 5, moving block; 6, mounting plate; 7, ion removal electrode; 8, linkage structure; 81, mounting shell; 82, first bevel gear; 83, second bevel gear; 84, rotating shaft; 9, mounting frame; 10, pulley; 11, conveyor belt; 12, moving table; 13, stirring plate; 14, fixing plate; 15, limiting groove; 16, limiting block; 17, guide rail; 18, roller. Detailed implementation manners

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5As shown in the figure, an ion removal device for a tin plating solution includes a treatment tank 1. A fixing frame 2 is bolted to the top of the treatment tank 1. A motor 3 is fixed to the left side of the fixing frame 2. A threaded rod 4 is rotatably connected inside the fixing frame 2, and the output shaft of the motor 3 penetrates the fixing frame 2 and is fixedly connected to the left end of the threaded rod 4. A moving block 5 is arranged in the middle inside the fixing frame 2. Mounting plates 6 are fixed to both the front and rear sides of the moving block 5. An ion removal electrode 7 is fixed to one side of the bottom of the mounting plate 6. The connecting wire at the top of the ion removal electrode 7 penetrates the mounting plate 6 and extends above the mounting plate 6. Linkage structures 8 are movably connected to both the left and right sides of the surface of the threaded rod 4. An installation frame 9 is arranged below the fixing frame 2. Fixing plates 14 are bolted to the left and right sides of the front and rear sides of the installation frame 9, and the top of the fixing plate 14 is fixedly connected to the fixing frame 2. Pulley wheels 10 are rotatably connected to both the left and right sides of the bottom of the installation frame 9, and conveyor belts 11 are sleeved on the surfaces of the pulley wheels 10 on both sides. Moving platforms 12 are arranged on both the left and right sides below the installation frame 9, and one side of the moving platform 12 is fixedly connected to the surface of the conveyor belt 11. A stirring plate 13 is fixed to the bottom of the moving platform 12.

[0023] The thread on the surface of the threaded rod 4 is a reciprocating thread, and the threaded rod 4 penetrates the moving block 5 and is threadedly connected to the moving block 5. A limiting groove 15 is opened at the top of the fixing frame 2. A limiting block 16 is fixed to the top of the moving block 5, and the top of the limiting block 16 extends into the limiting groove 15 and is slidably connected to the inner wall of the limiting groove 15. When the staff turns on the motor 3, the output shaft of the motor 3 will drive the threaded rod 4 to rotate. The upper limiting block 16 limits the lower moving block 5, so that the moving block 5 can only move back and forth left and right on the surface of the threaded rod 4, continuously adjusting the position of the ion removal electrode 7 to improve the ion removal effect on the tin plating solution.

[0024] The linkage structure 8 includes a mounting shell 81, a first bevel gear 82, a second bevel gear 83 and a rotating shaft 84. The mounting shell 81 is sleeved on the surface of the threaded rod 4, and the threaded rod 4 is rotatably connected to the mounting shell 81. The first bevel gear 82 is rotatably connected to the right side of the inner wall of the mounting shell 81, and the second bevel gear 83 is rotatably connected to the bottom of the inner wall of the mounting shell 81. The rotating shaft 84 is disposed through the bottom of the mounting shell 81, and the top end of the rotating shaft 84 penetrates into the interior of the mounting shell 81 and is fixedly connected to the bottom of the second bevel gear 83. The bottom end of the rotating shaft 84 penetrates the mounting frame 9 and is fixedly connected to the top of the pulley 10. The top of the mounting shell 81 is fixedly connected to the top of the inner wall of the fixed frame 2. The threaded rod 4 penetrates the first bevel gear 82 and is fixedly connected to the first bevel gear 82, and the first bevel gear 82 meshes with the second bevel gear 83. When the threaded rod 4 rotates, the first bevel gears 82 on both sides of the surface of the threaded rod 4 will rotate synchronously, so that the lower second bevel gear 83 also starts to rotate. The rotating shaft 84 drives the pulleys 10 on both sides to rotate, so that the conveyor belt 11 moves, adjusts the positions of the stirring plates 13 on both sides, and stirs the tin plating solution back and forth.

[0025] A guide rail 17 is fixed to the bottom of the mounting frame 9. Rollers 18 are rotatably connected to the four sides of the top of the moving table 12. The rollers 18 are in contact with the surface of the guide rail 17 and are in rolling connection with the guide rail 17. When the conveyor belt 11 drives the moving table 12 to move, the stability of the moving table 12 during movement can be improved through the guide rail 17, so that the lower stirring plate 13 can stir the tin plating solution.

[0026] Working principle: When it is necessary to remove ions from the tin plating solution, the staff pours the tin plating solution into the interior of the treatment tank 1. At this time, the staff turns on the left motor 3, so that the output shaft of the motor 3 drives the threaded rod 4 to rotate. The moving block 5 on the surface of the threaded rod 4 drives the ion removal electrode 7 to move back and forth left and right through the mounting plate 6. At the same time, the pulleys 10 on both sides below the mounting frame 9 also rotate synchronously, so that the conveyor belt 11 drives the moving tables 12 on both sides to move, and the stirring plates 13 start to stir the tin plating solution. The staff turns on the ion removal electrode 7, so that while the ion removal electrode 7 moves, the ions in the tin plating solution are reduced to solid metals and deposited on the ion removal electrode 7. The stirring plates 13 continuously stir the tin plating solution inside the treatment tank 1 to promote the diffusion and mixing of the ions in the solution, so that the ions are more evenly distributed in the solution, thereby completing the operation of removing ions from the tin plating solution.

[0027] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A device for removing ions from a tinning solution, comprising a treatment tank (1) and a fixing frame (2) bolted to the top of the treatment tank (1), characterized in that: Also includes: A motor (3) is fixed on the left side of a fixing frame (2), the fixing frame (2) is rotatably connected to a threaded rod (4) inside, and the output shaft of the motor (3) passes through the fixing frame (2) and is fixedly connected to the left end of the threaded rod (4), a moving block (5) is arranged in the middle of the fixing frame (2), and mounting plates (6) are fixed on both the front and rear sides of the moving block (5), an ion removal electrode (7) is fixed on one side of the bottom of the mounting plate (6), and a linkage structure (8) is movably connected to both the left and right sides of the surface of the threaded rod (4); A mounting frame (9) is arranged below the fixed frame (2), and fixing plates (14) are bolted to the left and right sides of the front and rear sides of the mounting frame (9), and the top of the fixing plate (14) is fixedly connected to the fixed frame (2), and the left and right sides of the bottom of the mounting frame (9) are rotatably connected to pulleys (10), and the surfaces of the pulleys (10) on the left and right sides are sleeved with conveying belts (11), and the left and right sides below the mounting frame (9) are provided with moving platforms (12), and one side of the moving platform (12) is fixedly connected to the surface of the conveying belt (11), and the bottom of the moving platform (12) is fixed with a stirring plate (13).

2. The ion removal device for a tin plating solution according to claim 1, characterized in that: The thread on the surface of the threaded rod (4) is a reciprocating thread, and the threaded rod (4) passes through the moving block (5) and is threadedly connected to the moving block (5).

3. The ion removal device for tin plating solution according to claim 1, characterized in that: A limiting groove (15) is provided on the top of the fixed frame (2), a limiting block (16) is fixed on the top of the moving block (5), and the top of the limiting block (16) extends into the interior of the limiting groove (15) and is slidably connected to the inner wall of the limiting groove (15).

4. The ion removal device for a tin plating solution according to claim 1, characterized in that: The linkage structure (8) comprises a mounting shell (81), a first bevel gear (82), a second bevel gear (83) and a rotating shaft (84); the mounting shell (81) is sleeved on the surface of the threaded rod (4), and the threaded rod (4) and the mounting shell (81) are rotatably connected; the first bevel gear (82) is rotatably connected to the right side of the inner wall of the mounting shell (81); the second bevel gear (83) is rotatably connected to the bottom of the inner wall of the mounting shell (81); the rotating shaft (84) is arranged through the bottom of the mounting shell (81); the top end of the rotating shaft (84) penetrates the interior of the mounting shell (81) and is fixedly connected to the bottom of the second bevel gear (83); the bottom end of the rotating shaft (84) penetrates the mounting frame (9) and is fixedly connected to the top of the pulley (10).

5. The ion removal device for tin plating solution according to claim 4, characterized in that: The top of the mounting shell (81) is fixedly connected to the top of the inner wall of the fixing frame (2), the threaded rod (4) passes through the first bevel gear (82) and is fixedly connected to the first bevel gear (82), and the first bevel gear (82) is meshed with the second bevel gear (83).

6. The ion removal device for tin plating solution according to claim 1, characterized in that: A guide rail (17) is fixed at the bottom of the mounting frame (9), and rollers (18) are rotatably connected to the four sides of the top of the moving platform (12), and the rollers (18) are in contact with the surface of the guide rail (17) and are rollingly connected to the guide rail (17).

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