Electroplating copper nickel tin additive mixing and stirring device

Abstract

The utility model discloses a kind of electroplating copper nickel tin additive mixing stirring device, belong to electroplating additive production equipment technical field.The device includes mixing tank and by motor-driven rotating frame, the inside fixedly connected with fixed column of rotating frame, the fixed column is fixedly connected with spoiler, oblique guide vane is opened on the spoiler;Rotating frame is also slidably connected with sliding block, the sliding block is connected with scraper, and the scraper and the rotating frame are elastically abutted in the mixing tank inner wall by spring set on sliding column between them.The utility model aims at solving the problem of poor mixing effect, material easy sticking wall in prior art.Through the composite structure of the spoiler and the oblique guide vane, strong axial shearing is generated while radial agitation, which significantly improves the mixing efficiency and uniformity;At the same time, the elastic self-adaptive scraper mechanism can clean the tank wall synchronously during stirring, effectively prevent material adhesion, and has strong practicability.

Description

Technical Field

[0001] This utility model relates to the technical field of electroplating additive production equipment, and in particular to a mixing and stirring device for electroplating copper-nickel-tin additives. Background Technology

[0002] Electroplating of copper, nickel, and tin is an important component of modern surface treatment technology, widely used in the electronics, hardware, and decorative industries. During the preparation of the electroplating solution, the uniformity of mixing various trace additives directly affects the quality of the final plating layer, including key performance indicators such as gloss, smoothness, and adhesion. Therefore, efficient and uniform mixing of these additives is a prerequisite for ensuring the stability of the electroplating process.

[0003] Currently, conventional stirring devices used for mixing electroplating additives mostly employ simple paddle or frame-type stirring structures. During operation, these devices primarily drive the material within the tank to rotate circumferentially as a whole, easily forming vortices at the center of the tank, while the flow velocity near the tank walls is lower, resulting in insufficient relative motion and shearing between the material and the aggregate. For electroplating copper-nickel-tin additives with complex compositions and varying viscosities, this mixing method often leads to long mixing times, high energy consumption, and difficulty in avoiding uneven mixing in localized areas and the creation of mixing dead zones, thus affecting the performance consistency of the entire batch of electroplating solution.

[0004] Furthermore, some electroplating additive components possess a certain degree of viscosity or adsorption, easily adhering to the inner wall of the mixing tank during the mixing process. As the mixing time increases, this adhesion gradually intensifies, not only resulting in the loss of effective ingredients and reducing the accuracy of the formulation, but also posing significant challenges to tank cleaning when changing materials during batch production. Incomplete cleaning can lead to cross-contamination of subsequent batches. Existing mixing devices generally lack specific anti-adhesion or automatic cleaning mechanisms, requiring additional manual intervention, which reduces production efficiency and increases operating costs. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a mixing and stirring device for electroplating copper-nickel-tin additives, which aims to improve the problems of low mixing efficiency, poor uniformity, easy adhesion of materials to the tank wall and difficulty in cleaning, and single function of existing electroplating copper-nickel-tin additive mixing and stirring devices. This utility model aims to provide an electroplating copper-nickel-tin additive mixing and stirring device with an improved structure that can effectively solve the above problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a mixing and stirring device for electroplating copper-nickel-tin additives, comprising: a mixing tank, a motor, a transmission shaft and a rotating frame; as well as a fixed column, a baffle plate, an inclined guide channel, a sliding block, a scraper, a sliding column and a spring.

[0007] The spoiler has an oblique guide groove, and the scraper is elastically slidably connected to the rotating frame through the sliding block, the sliding column and the spring.

[0008] Furthermore, the fixed column is fixedly connected inside the rotating frame, and the baffle is fixedly connected to the fixed column; the sliding block is slidably connected to the rotating frame, one end of the sliding block is fixedly connected to the scraper, and the scraper abuts against the inner wall of the mixing tank; the other end of the sliding block is fixedly connected to the sliding column, and the sliding column slidably passes through the rotating frame; the spring is sleeved on the outer periphery of the sliding column and is combined between the rotating frame and the sliding block.

[0009] Preferably, the mixing tank has a feeding port at the top and a discharge pipe fixedly connected to the bottom of the mixing tank, and a solenoid valve is installed on the discharge pipe.

[0010] Preferably, the electroplating copper-nickel-tin additive mixing and stirring device further includes a support frame, which is fixed to the bottom of the outer wall of the mixing tank to support the entire device.

[0011] Preferably, one end of the spring abuts against the rotating frame, and the other end abuts against the sliding block.

[0012] Preferably, the fixed column is vertically arranged inside the rotating frame along the axial direction of the transmission shaft, and the spoilers are radially symmetrically distributed with the fixed column as the center.

[0013] Preferably, the spoiler is a plate-shaped structure extending radially outward along the fixed column, and the oblique guide groove penetrates two opposite surfaces of the spoiler.

[0014] Preferably, the scraper is located on the outer periphery of the rotating frame away from the drive shaft.

[0015] This utility model has the following beneficial effects: 1. In this utility model, by setting a baffle plate that rotates with the rotating frame and opening an oblique guide groove on the baffle plate, the problems of low mixing efficiency, poor uniformity and easy formation of mixing dead corners in the existing stirring device are solved. The composite mixing of radial turbulence and axial shearing of materials is achieved, thereby significantly improving the technical effect of mixing efficiency and uniformity.

[0016] 2. This utility model solves the problem in the prior art that sticky materials easily adhere to the inner wall of the mixing tank, causing material waste and making it difficult to clean, by setting a scraper that is slidably connected to the rotating frame and using a spring to provide a continuous and adaptive elastic thrust to the scraper, so that it always adheres to the inner wall of the mixing tank. This achieves the technical effect of synchronously scraping and cleaning the inner wall of the tank during the mixing process, effectively preventing materials from sticking to the wall. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a mixing and stirring device for electroplating copper-nickel-tin additives proposed in this utility model; Figure 2 This is a cross-sectional structural diagram of the mixing tank of a mixing and stirring device for electroplating copper-nickel-tin additives proposed in this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the rotating frame structure of a mixing and stirring device for electroplating copper-nickel-tin additives proposed in this utility model; Figure 5 This is a cross-sectional schematic diagram of the baffle plate of the electroplating copper-nickel-tin additive mixing and stirring device proposed in this utility model.

[0018] Legend: 1. Support frame; 2. Mixing tank; 201. Motor; 202. Feed port; 203. Solenoid valve; 204. Feed pipe; 3. Drive shaft; 4. Rotating frame; 401. Scraper; 402. Sliding block; 403. Sliding column; 404. Spring; 5. Fixed column; 501. Baffle plate; 502. Angled guide channel. Detailed Implementation

[0019] 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.

[0020] Please refer to Figures 1 to 5 This utility model provides a mixing and stirring device for electroplating copper-nickel-tin additives, which aims to solve the structural problems of low mixing efficiency, poor uniformity, easy generation of mixing dead corners, and easy adhesion of materials to the inner wall, which are difficult to clean, in the existing stirring devices.

[0021] like Figure 1 and Figure 2As shown, a mixing and stirring device for electroplating copper-nickel-tin additives includes a mixing tank 2 supported by a bracket 1. The top of the mixing tank 2 is provided with a feeding port 202 for feeding materials. The bottom of the mixing tank 2 is fixedly connected to a discharge pipe 204. A solenoid valve 203 for controlling the discharge of materials is installed on the discharge pipe 204. A motor 201 is also installed on the top of the mixing tank 2. The output end of the motor 201 is fixedly connected to a drive shaft 3. The drive shaft 3 passes through the top of the mixing tank 2 and extends into the interior of the mixing tank 2. A rotating frame 4 is fixedly connected to the end of the drive shaft 3. The rotating frame 4 rotates inside the mixing tank 2 under the drive of the drive shaft 3. The core stirring and cleaning mechanisms of this solution are both set on the rotating frame 4.

[0022] Specifically, the mixing mechanism is located inside the rotating frame 4, and the wall scraping and cleaning mechanism is located on the outer periphery of the rotating frame 4. A fixed column 5 is vertically fixedly connected inside the rotating frame 4 along the axial direction of the transmission shaft 3. A baffle 501 is fixedly connected on the fixed column 5. An oblique guide channel 502 is provided on the baffle 501. The efficient mixing of materials is achieved through the synergistic effect of the baffle 501 and the oblique guide channel 502.

[0023] Meanwhile, a wall-scraping cleaning mechanism is also provided on the outer periphery of the rotating frame 4 away from the drive shaft 3. A sliding block 402 is slidably connected to the rotating frame 4. A scraper 401 is fixedly connected to one end of the sliding block 402. The scraper 401 abuts against the inner wall of the mixing tank 2. A sliding column 403 is fixedly connected to the other end of the sliding block 402. The sliding column 403 slides through the rotating frame 4. A spring 404 is provided between the rotating frame 4 and the sliding block 402. The spring 404 is sleeved on the outer periphery of the sliding column 403. One end of the spring 404 abuts against the rotating frame 4, and the other end abuts against the sliding block 402. The elastic force of the spring 404 enables the scraper 401 to always adaptively conform to the inner wall of the mixing tank 2 for scraping and cleaning.

[0024] The fixed column 5 is vertically installed inside the rotating frame 4 along the axial direction of the drive shaft 3. The baffles 501 are radially symmetrically distributed with the fixed column 5 as the center. Specifically, the baffles 501 are plate-shaped structures extending outward along the radial direction of the fixed column 5. The baffles 501 are provided with oblique guide grooves 502, which penetrate the two opposite plate surfaces of the baffles 501. When the motor 201 drives the drive shaft 3 to rotate the rotating frame 4, the baffles 501 fixed inside the rotating frame 4 rotates at high speed. The plate body of the baffles 501 itself generates strong radial agitation and impact on the material in the mixing tank 2. At the same time, when the material flows through the baffles 501, it is forced to pass through the oblique guide grooves 502, thus giving it a significant axial flow component on the basis of the original circumferential motion. This composite motion mode greatly enhances the turbulence intensity and shear effect of the material, ensuring that the material can be quickly and uniformly mixed at both the macroscopic and microscopic levels.

[0025] The rotating frame 4 has a guide groove for sliding block 402 and a through hole for sliding column 403. Sliding block 402 is slidably installed in the guide groove of rotating frame 4. One end of sliding column 403 is fixedly connected to sliding block 402, and the other end slides through the through hole of rotating frame 4. Spring 404 is sleeved on the outer periphery of sliding column 403 and compressed between the inner side wall of rotating frame 4 and the inner side of sliding block 402. In the assembled state, spring 404 always applies an outward thrust to sliding block 402. This thrust is transmitted to fixedly connected scraper 401 through sliding block 402, so that the outer scraping surface of scraper 401 can continuously and elastically abut against the inner wall of mixing tank 2. This elastic floating scraper-slider cooperation structure ensures that scraper 401 can automatically compensate for minor unevenness of inner wall of mixing tank 2 or local resistance caused by material accumulation during rotation, and achieves continuous and efficient wall scraping and cleaning effect.

[0026] As a preferred embodiment, to facilitate stable and reliable installation and support of the entire device, please refer to... Figure 1 The mixing tank 2 is supported by a bracket 1 fixed to the bottom of the outer wall of the mixing tank 2. The bracket 1 can be a triangular bracket or a platform bracket structure.

[0027] As another preferred embodiment, the top of the mixing tank 2 is provided with a feeding port 202 for feeding materials, and the bottom of the mixing tank 2 is fixedly connected with a discharge pipe 204. A solenoid valve 203 for controlling the discharge of materials is installed on the discharge pipe 204. The feeding port 202 may be equipped with a sealing cover. The solenoid valve 203 is electrically connected to an external control system, thereby realizing precise control of the feeding and discharging process.

[0028] In another preferred embodiment, the spring 404 is located between the rotating frame 4 and the sliding block 402. One end of the spring 404 abuts against the side wall of the through hole provided by the sliding column 403 in the rotating frame 4, and the other end abuts against the side of the connection between the sliding block 402 and the sliding column 403.

[0029] As another preferred embodiment, the scraper 401 is disposed on the outer periphery of the rotating frame 4 away from the drive shaft 3, so that the scraper 401 has the maximum linear velocity when it rotates with the rotating frame 4, thereby obtaining better scraping and cleaning efficiency.

[0030] As another preferred embodiment, in order to make the layout of the mixing mechanism more reasonable and stable, the fixed column 5 is vertically arranged inside the rotating frame 4 along the axial direction of the transmission shaft 3, and the baffles 501 are radially symmetrically distributed with the fixed column 5 as the center. This symmetrical layout helps to maintain dynamic balance during high-speed rotation and reduce equipment vibration.

[0031] Based on the above, as a further preferred embodiment, the spoiler 501 is a rectangular plate-shaped structure extending radially outward along the fixed column 5, and the oblique guide groove 502 is a plurality of through grooves arranged side by side with the same inclination angle, and the oblique guide groove 502 penetrates the two opposite plate surfaces of the spoiler 501.

[0032] Working principle: When using this device, firstly, the material to be mixed is put into the mixing tank 2 through the feeding port 202 at the top of the mixing tank 2. Then, the motor 201 is started. The output end of the motor 201 drives the transmission shaft 3 to rotate. Since the rotating frame 4 is fixedly connected to the end of the transmission shaft 3, the rotation of the transmission shaft 3 will synchronously drive the rotating frame 4 to rotate inside the mixing tank 2. During the rotation of the rotating frame 4, the fixed column 5 and the baffle 501 fixedly installed inside the rotating frame 4 will rotate synchronously at high speed. The plate-like structure of the baffle 501 will generate strong circumferential agitation and radial impact on the material inside the mixing tank 2. At the same time, when the material is agitated, it will be forced to pass through the inclined guide channel 502 opened on the baffle 501. The guiding effect of the inclined guide channel 502 will give the material a significant axial flow component. The combination of circumferential agitation and axial guide flow creates a complex three-dimensional turbulent mixing effect inside the mixing tank 2, thereby greatly improving the mixing efficiency and uniformity. While mixing, the wall-scraping cleaning mechanism set on the outer periphery of the rotating frame 4 also works simultaneously. Driven by the rotating frame 4, the scraper 401 rotates and scrapes against the inner wall of the mixing tank 2. When the scraper 401 encounters resistance from the tank wall, it will be pressed inward and push the sliding block 402. The sliding block 402 then drives the sliding column 403 to slide synchronously and compress the spring 404. Subsequently, the compressed spring 404 releases its elasticity and pushes the sliding block 402 and the scraper 401 in the opposite direction, ensuring that the scraper 401 can always adhere tightly to the inner wall of the mixing tank 2 with a continuous and adaptive pressure, thereby effectively scraping off the adhered material and achieving dynamic cleaning. Once the materials are mixed, the uniformly mixed finished product can be discharged from the bottom of the mixing tank 2 by opening the solenoid valve 203 installed on the discharge pipe 204. The stable placement of the entire device is ensured by the support 1.

Claims

1. A mixing and stirring device for electroplating copper-nickel-tin additives, comprising: Mixing tank (2); A motor (201) is provided, the output end of which is fixedly connected to a drive shaft (3). The drive shaft (3) passes through the top of the mixing tank (2) and extends into the interior of the mixing tank (2). A rotating frame (4) is fixedly connected to the end of the drive shaft (3). The characteristic feature is that... The rotating frame (4) is fixedly connected to a fixed column (5), and a baffle (501) is fixedly connected to the fixed column (5). An oblique guide groove (502) is provided on the baffle (501). Furthermore, a sliding block (402) is slidably connected to the rotating frame (4), and a scraper (401) is fixedly connected to one end of the sliding block (402), which abuts against the inner wall of the mixing tank (2); a sliding column (403) is fixedly connected to the other end of the sliding block (402), which slides through the rotating frame (4); a spring (404) is provided between the rotating frame (4) and the sliding block (402), and the spring (404) is sleeved on the outer periphery of the sliding column (403).

2. The mixing and stirring device for electroplating copper-nickel-tin additives according to claim 1, characterized in that, The mixing tank (2) has a feeding port (202) for feeding materials at the top, and a discharge pipe (204) is fixedly connected to the bottom of the mixing tank (2). A solenoid valve (203) for controlling the discharge of materials is installed on the discharge pipe (204).

3. The mixing and stirring device for electroplating copper-nickel-tin additives according to claim 1, characterized in that, The mixing tank (2) is supported by a bracket (1) fixed to the bottom of its outer wall.

4. The mixing and stirring device for electroplating copper-nickel-tin additives according to claim 1, characterized in that, The spring (404) is located between the rotating frame (4) and the sliding block (402), with one end of the spring (404) abutting against the rotating frame (4) and the other end abutting against the sliding block (402).

5. The mixing and stirring device for electroplating copper-nickel-tin additives according to claim 1, characterized in that, The fixed column (5) is vertically arranged inside the rotating frame (4) along the axial direction of the transmission shaft (3), and the spoiler (501) is radially symmetrically distributed with the fixed column (5) as the center.

6. The mixing and stirring device for electroplating copper-nickel-tin additives according to claim 5, characterized in that, The spoiler (501) is a plate-shaped structure that extends radially outward along the fixed column (5), and the oblique guide groove (502) penetrates the two opposite plate surfaces of the spoiler (501).

7. The mixing and stirring device for electroplating copper-nickel-tin additives according to claim 1, characterized in that, The scraper (401) is located on the outer periphery of the rotating frame (4) away from the drive shaft (3).

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