Tinning device convenient for supplementing liquid tin

By introducing a circulating conveying mechanism consisting of a tin storage tank, a liquid pump, a liquid transfer pump, and stirring blades into the tin plating unit, the problems of inconvenient liquid tin replenishment and uneven distribution of tin plating solution are solved, thereby improving production efficiency and product quality and simplifying the cleaning process.

CN224062858UActive Publication Date: 2026-03-31DONGGUAN ZHENGHAN ELECTROPLATING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing tin plating equipment suffers from inconvenient liquid tin replenishment, affecting production efficiency. Uneven distribution of tin plating solution leads to unstable product quality, making cleaning difficult and easily contaminating subsequent products.

Method used

A circulating conveying mechanism, including a tin storage tank, a liquid pump, a liquid delivery pump, and stirring blades, was designed to achieve rapid replenishment and uniform distribution of liquid tin, and a cleaning mechanism was provided for convenient cleaning and removal of impurities.

Benefits of technology

It enables continuous replenishment of liquid tin, improves production efficiency, ensures uniformity of tin plating solution and product quality, simplifies the cleaning process, and avoids contamination by impurities.

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Abstract

The utility model discloses a tinning device convenient for supplementing liquid tin, which relates to the technical field of tinning, and comprises a control main body and a circulating conveying mechanism, the circulating conveying mechanism is arranged at the top of the control main body, and the circulating conveying mechanism comprises a tin storage box arranged at the top position of the control main body; a liquid suction pipe is fixedly connected to one side of the tin storage box, a liquid suction pump is fixedly connected to the bottom of the tin storage box, a liquid conveying pump is fixedly connected to the bottom of the tin storage box, a liquid conveying pipe is fixedly connected to the bottom of the liquid conveying pump, and the working principle of the liquid suction pump is mainly based on the physical principles such as atmospheric pressure and centrifugal force; tin plating liquid in the tin plating bath is conveyed into the tin storage box, and the tin plating liquid in the tin storage box is conveyed back to the tin plating bath through the liquid conveying pump. Compared with an existing common tinning device, the tinning device convenient for supplementing the liquid tin has the advantages that the liquid tin is convenient to supplement, the production efficiency is greatly improved, the thickness of a tinned layer is consistent, the product quality is improved, and residual impurities are effectively prevented from polluting subsequent tinned products.
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Description

Technical Field

[0001] This utility model relates to the field of tin plating technology, specifically to a tin plating device that facilitates the replenishment of liquid tin. Background Technology

[0002] Tin plating and its alloys are coatings with good solderability and certain corrosion resistance, widely used in electronic components and printed circuit boards. In addition to physical methods such as hot dipping and spraying, electroplating, immersion plating, and chemical plating are widely used in industry due to their simplicity and ease of implementation. Tin plating is widely used in many industries such as electronics and machinery manufacturing. Tin plating can improve the oxidation resistance and corrosion resistance of metal surfaces, as well as improve the weldability of metals. However, existing tin plating equipment has some problems in operation.

[0003] For example, application number CN202323240445.0 describes a tin-plating device for stranded wire, comprising a tin-plating device body. A connecting platform is fixedly connected to the front end of the tin-plating device body. A traction groove is formed on the surface of the front end of the connecting platform. A traction block is slidably connected to the surface inside the traction groove. A first sliding rod is slidably connected inside the traction block. A first handle is fixedly connected to the top end of the first sliding rod, and a clamping block is fixedly connected to the bottom end of the first sliding rod. To prevent the molten tin from contacting the worker during the tin-plating process, a first pull plate is pulled out, causing a first insert rod to be pulled out, thus releasing the first sliding rod from its limit. At this time, pushing the first handle moves the first sliding rod, immersing the copper wire component in the molten tin. After tin-plating is completed, the first pull plate is pushed back in, causing the first insert rod to be inserted into a first opening, forming a limit and preventing the worker from contacting the molten tin during tin-plating, making the work process safer. However, replenishing the liquid tin in this tin plating device is inconvenient, often requiring shutdown, which affects production efficiency. Furthermore, the uneven distribution of the tin plating solution leads to inconsistent tin plating layer thickness, unstable product quality, and difficulty in cleaning the device, with residual tin dross and other impurities contaminating subsequent tin-plated products.

[0004] Therefore, in view of this, we have studied and improved the existing structure to address its shortcomings, and proposed a tin plating device that facilitates the replenishment of liquid tin. Utility Model Content

[0005] The purpose of this invention is to provide a tin plating device that facilitates the replenishment of liquid tin, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tin plating device for easy replenishment of liquid tin, comprising a control body and a circulation conveying mechanism, characterized in that the top of the control body is provided with a circulation conveying mechanism, and the circulation conveying mechanism includes a tin storage tank disposed at the top of the control body, a liquid extraction pipe fixedly connected to one side of the tin storage tank, a liquid extraction pump fixedly connected to the bottom of the tin storage tank, an infusion pump fixedly connected to the bottom of the tin storage tank, and an infusion pipe fixedly connected to the bottom of the infusion pump.

[0007] Preferably, a tin plating tank is fixedly connected to one side of the control body, and a cleaning mechanism is fixedly connected to one side of the tin plating tank.

[0008] Preferably, the cleaning mechanism includes a cleaning fluid pump fixedly connected to one side of the tin plating bath, and an annular pipe is fixedly connected to one side of the cleaning fluid pump. A nozzle is fixedly connected to the outer surface of the annular pipe, and a cleaning fluid storage tank is fixedly connected to the other side of the cleaning fluid pump.

[0009] Preferably, a fixing frame is fixedly connected to the top of the tin plating tank, and a motor is fixedly connected to the top of the fixing frame.

[0010] Preferably, the output end of the motor is fixedly connected to a stirring shaft, and stirring blades are fixedly connected to the outer surface of the stirring shaft.

[0011] Preferably, a dispersion disc is fixedly connected to the bottom of the stirring shaft, and a liquid replenishment port is fixedly connected to the outer surface of the tin storage box.

[0012] Preferably, a drain pipe is fixedly connected to the outer surface of the tin plating tank, and a drain valve is provided on the outer surface of the drain pipe.

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

[0014] 1. This utility model facilitates the replenishment of liquid tin through the setting of a circulating conveying mechanism. When the amount of liquid tin in the tin plating tank is insufficient, there is no need to stop the machine. Liquid tin can be directly replenished from the tin storage tank. The liquid pump can be started to quickly transport the liquid tin in the tin storage tank to the tin plating tank, ensuring the continuity of tin plating work and greatly improving production efficiency.

[0015] 2. The design of this utility model facilitates the cleaning of the device. When it is necessary to clean the tin plating tank, the tin plating device is turned off and the cleaning liquid pump is turned on. The cleaning liquid is sprayed out from the nozzle to rinse the bottom and inside of the tin plating tank. The wastewater and residual tin dross after rinsing are discharged through the drain pipe. The drain valve can control the draining process, which is convenient and quick and effectively avoids residual impurities from contaminating subsequent tin-plated products.

[0016] 3. This utility model, through the setting of a circulating conveying mechanism and stirring blades, enables the tin plating solution in the tin plating tank to flow continuously, thereby accelerating the renewal speed of the tin plating solution. When the circulating conveying mechanism is working, this flowing tin plating solution can be drawn out by the pump and transported to the tin storage tank more quickly. At the same time, the new tin solution added to the tin storage tank can also be mixed more quickly and evenly with the original tin plating solution in the tin plating tank, further improving the uniformity of the tin plating solution and the tin plating effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the circulating conveying mechanism 2 of this utility model;

[0019] Figure 3 This is a schematic diagram of the bottom structure of the fixing frame 5 of this utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning mechanism 4 of this utility model.

[0021] In the diagram: 1. Control unit; 2. Circulating conveying mechanism; 201. Tin storage tank; 202. Liquid extraction pipe; 203. Liquid extraction pump; 204. Liquid delivery pump; 205. Liquid delivery pipe; 3. Tin plating tank; 4. Cleaning mechanism; 401. Cleaning liquid pump; 402. Circular pipe; 403. Nozzle; 404. Cleaning liquid storage tank; 5. Fixing frame; 6. Motor; 7. Stirring shaft; 8. Stirring blades; 9. Dispersion disc; 10. Liquid replenishment port; 11. Drain pipe; 12. Drain valve. Detailed Implementation

[0022] 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.

[0023] like Figures 1-2As shown, a tin plating device for easy replenishment of liquid tin includes a control body 1 and a circulation conveying mechanism 2. The control body 1 has a circulation conveying mechanism 2 at its top, and the circulation conveying mechanism 2 includes a tin storage tank 201 located at the top of the control body 1. A suction pipe 202 is fixedly connected to one side of the tin storage tank 201, and a suction pump 203 is fixedly connected to the bottom of the tin storage tank 201. A delivery pump 204 is fixedly connected to the bottom of the tin storage tank 201, and a delivery pipe 205 is fixedly connected to the bottom of the delivery pump 204. The suction pump 203 operates primarily based on physical principles such as atmospheric pressure and centrifugal force, transporting the tin plating liquid inside the tin plating tank 3 to the tin storage tank 201. The delivery pump 204 then transports the tin plating liquid from the tin storage tank 201 back to the tin plating tank 3, thus achieving the circulation and renewal of the tin plating liquid.

[0024] like Figure 4 As shown, a tin plating tank 3 is fixedly connected to one side of the control body 1, and a cleaning mechanism 4 is fixedly connected to one side of the tin plating tank 3. The cleaning mechanism 4 includes a cleaning fluid pump 401 fixedly connected to one side of the tin plating tank 3, and an annular pipe 402 is fixedly connected to one side of the cleaning fluid pump 401. A nozzle 403 is fixedly connected to the outer surface of the annular pipe 402, and a cleaning fluid storage tank 404 is fixedly connected to the other side of the cleaning fluid pump 401. Multiple sets of nozzles 403 are provided on the outer surface of the annular pipe 402. The cleaning fluid pump 401 sprays the cleaning fluid inside the cleaning fluid storage tank 404 into the tin plating tank 3 through the multiple sets of nozzles 403 on the outer surface of the annular pipe 402 to clean the tin plating tank 3 and keep the inside of the tin plating tank 3 clean.

[0025] Furthermore, a fixed frame 5 is fixedly connected to the top of the tin plating tank 3, and a motor 6 is fixedly connected to the top of the fixed frame 5. A stirring shaft 7 is fixedly connected to the output end of the motor 6, and stirring blades 8 are fixedly connected to the outer surface of the stirring shaft 7. The motor 6, stirring shaft 7, and stirring blades 8 form a stirring device. The fixed frame 5 supports the stirring device. Each set of stirring blades 8 has a different angle. The stirring device makes the tin plating liquid form an up-and-down circulation flow in the tin plating tank 3. The stirring blades 8 at different angles increase the turbulence effect.

[0026] Furthermore, a dispersing disc 9 is fixedly connected to the bottom of the stirring shaft 7, and a replenishment port 10 is fixedly connected to the outer surface of the tin storage tank 201. A drain pipe 11 is fixedly connected to the outer surface of the tin plating tank 3, and a drain valve 12 is provided on the outer surface of the drain pipe 11. A sealing cap is installed on the replenishment port 10. Multiple guide holes are opened inside the dispersing disc 9. The dispersing disc 9 further disperses the tin plating liquid. The guide holes make the tin plating liquid more evenly distributed in the tin plating tank 3, ensuring that the tin plating layer thickness is consistent and improving product quality.

[0027] Working Principle: When using this tin plating device that facilitates the replenishment of liquid tin, first install the device in a suitable position and ensure its stability. Before tin plating, check whether each component is operating normally. When liquid tin needs to be replenished, open the sealing cover of the replenishment port 10 of the tin storage tank 201 of the circulating conveying mechanism 2, add liquid tin through the replenishment port 10, and then close the sealing cover. During the tin plating process, start the motor 6 at the top of the fixed frame 5. The motor 6 drives the stirring shaft 7 and stirring blades 8 to rotate. The stirring blades 8 cause the tin plating liquid to circulate in the tin plating tank 3, and the dispersing plate 9 disperses the tin plating liquid. At the same time, according to the tin plating requirements, start the liquid pump 203 of the circulating conveying mechanism 2 and... The infusion pump 204 draws the tin plating solution from the bottom of the tin plating tank 3 through the extraction pipe 202 and delivers it to the tin storage tank 201. Then, the tin plating solution in the tin storage tank 201 is delivered back to the tin plating tank 3 through the infusion pipe 205, realizing the circulation and renewal of the tin plating solution. Finally, when the tin plating tank 3 needs to be cleaned, the relevant operating parts of the tin plating device are turned off, the cleaning liquid pump 401 of the cleaning mechanism 4 is turned on, and the cleaning liquid inside the cleaning liquid storage tank 404 is sprayed out from the nozzle 403 outside the annular pipe 402 to rinse the tin plating tank 3. The rinsing sewage and tin slag are discharged through the drain pipe 11, and the drain valve 12 is opened to control the sewage discharge process. This is the working principle of the tin plating device that facilitates the replenishment of liquid tin.

Claims

1. A tinning apparatus for facilitating replenishment of liquid tin comprising a control body (1) and a circulating delivery mechanism (2), characterised in that, The top of the control body (1) is provided with a circulating conveying mechanism (2), and the circulating conveying mechanism (2) comprises a tin storage box (201) arranged at the top of the control body (1), one side of the tin storage box (201) is fixedly connected with a liquid suction pipe (202), the bottom of the tin storage box (201) is fixedly connected with a liquid suction pump (203), the bottom of the tin storage box (201) is fixedly connected with a liquid delivery pump (204), and the bottom of the liquid delivery pump (204) is fixedly connected with a liquid delivery pipe (205).

2. A tinning apparatus for facilitating replenishment of liquid tin as claimed in claim 1, wherein, One side of the control body (1) is fixedly connected with a tinning tank (3), and one side of the tinning tank (3) is fixedly connected with a cleaning mechanism (4).

3. A tinning apparatus for facilitating replenishment of liquid tin as claimed in claim 2 wherein, The cleaning mechanism (4) comprises a cleaning liquid pump (401) fixedly connected to one side of the tinning tank (3), one side of the cleaning liquid pump (401) is fixedly connected with an annular pipeline (402), the outer surface of the annular pipeline (402) is fixedly connected with a spray head (403), and the other side of the cleaning liquid pump (401) is fixedly connected with a cleaning liquid storage tank (404).

4. The tinning apparatus of claim 2, wherein the liquid tin supply tank is provided with a liquid tin supply tank heater. The top of the tinning tank (3) is fixedly connected with a fixed frame (5), and the top of the fixed frame (5) is fixedly connected with a motor (6).

5. A tinning apparatus for facilitating replenishment of liquid tin as claimed in claim 4 wherein, The output end of the motor (6) is fixedly connected with a stirring shaft (7), and the outer surface of the stirring shaft (7) is fixedly connected with stirring blades (8).

6. A tinning apparatus for facilitating replenishment of liquid tin as defined in claim 5, wherein The bottom of the stirring shaft (7) is fixedly connected with a dispersing disc (9), and the outer surface of the tin storage box (201) is fixedly connected with a liquid supplementing port (10).

7. The tinning apparatus of claim 2, wherein The outer surface of the tinning tank (3) is fixedly connected with a blowdown pipe (11), and the outer surface of the blowdown pipe (11) is provided with a blowdown valve (12).

Citation Information

Patent Citations

  • Tinning device for tinned stranded wire

    CN221480039U