Multifunctional circuit board galvanizing device

Abstract

The utility model discloses a multifunctional circuit board galvanization device which comprises a pool body composed of a filtering bin and a galvanization bin and further comprises a filtering cylinder body, the filtering cylinder body is arranged in the filtering bin, a circulating pump is installed at the position, corresponding to the filtering bin, of the outer side of the pool body, and the input end of the circulating pump extends into the galvanization bin through a liquid pumping pipe. The output end of the circulating pump is connected with the filter cylinder through a liquid feeding pipe; and an S-shaped runner is arranged in the galvanizing bin through suspended partition plates arranged on the inner walls of the two sides at intervals, and a bearing frame assembly is arranged on one side of the galvanizing bin. According to the utility model, the tank body consisting of the filtering bin and the galvanizing bin and the internal filtering cylinder body are arranged, so that a plating solution can be pumped out of the galvanizing bin, and the plating solution is sent back to the galvanizing bin after impurities are removed through the multi-layer filtering device. The high-precision filtering system can be used for effectively removing suspended matters and impurities in the plating solution and ensuring the purity of the plating solution, so that the quality and the uniformity of a plating layer are improved.

Description

Technical Field

[0001] This utility model relates to the field of circuit board galvanizing technology, specifically a multifunctional circuit board galvanizing device. Background Technology

[0002] In the manufacturing process of electronic circuit boards, galvanizing is a crucial step. It not only enhances the corrosion resistance of the circuit boards but also improves their conductivity and mechanical strength. With the continuous development of electronic technology, the quality and performance requirements for circuit boards are becoming increasingly stringent, which places higher demands on galvanizing equipment.

[0003] Currently, there are some significant problems with PCB galvanizing equipment on the market. Firstly, the filtration effect of the plating solution is poor. Traditional filtration devices often only remove larger suspended particles, failing to effectively remove anionic and cationic impurities and tiny suspended particles in the plating solution. These impurities can lead to defects such as pinholes and pitting in the plating layer, affecting the quality and performance of the circuit board. For example, metal ion impurities in the plating solution can form uneven deposits on the plating surface, reducing the uniformity and density of the plating layer. Secondly, the control of the plating solution composition and temperature is not precise enough. During the galvanizing process, the composition and temperature of the plating solution have a significant impact on the plating quality. Furthermore, the fluidity of the plating solution is insufficient. In traditional galvanizing equipment, the flow of the electrolyte is often uneven, easily leading to localized stagnation. Utility Model Content

[0004] The purpose of this invention is to provide a multifunctional circuit board galvanizing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multifunctional circuit board galvanizing device, comprising a pool body consisting of a filter chamber and a galvanizing chamber, and further comprising...

[0006] The filter cylinder is located inside the filter chamber, and a circulation pump is installed on the outside of the tank corresponding to the position of the filter chamber. The input end of the circulation pump extends into the interior of the galvanizing tank through a liquid extraction pipe. The output end of the circulation pump is connected to the filter cylinder through a liquid delivery pipe. The output end of the filter cylinder is connected to a transition box. A zinc ion concentration sensor and a pH sensor are installed on the top of the transition box. The output end of the transition box is connected to a return pipe, and the other end of the return pipe extends into the interior of the galvanizing tank.

[0007] The interior of the galvanizing tank is equipped with S-shaped flow channels through suspended partitions intermittently installed on the inner walls of both sides. A support frame assembly is provided on one side of the galvanizing tank. The support frame assembly includes an electric lifter intermittently installed on the outer wall of the tank. The output end of the electric lifter is equipped with a support frame through a crossbar, and the support frame contains the support tank.

[0008] Furthermore, a stirring motor is installed at the bottom of the tank, and the output end of the stirring motor extends to the bottom of the galvanizing bin and is equipped with a spiral stirring blade. A temperature sensor is installed at the bottom of the galvanizing bin.

[0009] Furthermore, an annular groove is provided in the middle of the inner wall of the galvanizing tank, an electric heating block is installed inside the annular groove, and the outer side of the tank is wrapped with an insulation layer.

[0010] Furthermore, the side wall of the support frame is provided with an opening, and a protective net is provided on the inside of each opening.

[0011] Furthermore, the interior of the filter cylinder is sequentially provided with a filter cloth layer, a metal filter tube, an ion exchange resin, an activated carbon layer, and an ultrafiltration membrane layer, and the ion exchange resin includes a strongly acidic cation exchange resin and a strongly basic anion exchange resin.

[0012] Furthermore, a sealing cover is installed at the opening of the filter chamber above the filter cylinder, and a controller is installed on the top of the sealing cover.

[0013] This utility model relates to a multifunctional circuit board galvanizing device, which has significant advantages over the prior art, specifically in the following aspects:

[0014] 1. This device, through a pool consisting of a filtration chamber and a galvanizing chamber, along with an internal filter cylinder, draws the plating solution from the galvanizing chamber. After passing through a multi-layer filtration system (including a filter cloth layer, metal filter tubes, ion exchange resin, activated carbon layer, and ultrafiltration membrane layer) to remove impurities, the solution is returned to the galvanizing chamber. This high-precision filtration system effectively removes suspended solids and impurities from the plating solution, ensuring its purity and thus improving the quality and uniformity of the coating. The use of ion exchange resin further enhances the purity of the plating solution. The combination of strongly acidic cation exchange resin and strongly basic anion exchange resin effectively removes anionic and cationic impurities from the plating solution, preventing coating defects caused by impurities.

[0015] 2. A zinc ion concentration sensor and a pH sensor are installed in the transition tank, along with a temperature sensor inside the galvanizing tank, enabling real-time monitoring of the plating solution's composition and temperature. Through the continuous operation of the circulation pump, the sensor data is transmitted in real-time to the controller during the filtration and circulation process. The controller automatically manages the replenishment and adjustment of the plating solution based on this data, ensuring the stability of the solution's composition and the suitability of the temperature. This intelligent monitoring and adjustment system significantly improves the controllability and stability of the galvanizing process, reduces manual intervention, and lowers the risk of operational errors.

[0016] 3. The galvanizing tank features an S-shaped flow channel formed by intermittently installed suspended baffles on both inner walls. Combined with a spiral agitator installed at the output end of the stirring motor, this effectively promotes uniform electrolyte flow. The S-shaped flow channel design causes the plating solution to move in a spiral motion during flow, avoiding localized stagnation and ensuring uniform distribution. Simultaneously, the stirring motor and spiral agitator installed at the bottom of the tank further enhance the fluidity of the plating solution, allowing zinc ions to be evenly deposited on the circuit board, improving the uniformity and density of the coating.

[0017] 4. An annular groove is located in the middle of the inner wall of the galvanizing tank, inside which an electric heating block is installed to uniformly heat the plating solution. The outer side of the tank is wrapped with an insulating layer, which effectively reduces heat loss and maintains a constant temperature of the plating solution. This not only improves heating efficiency but also ensures the stability of the plating solution temperature, avoiding coating quality problems caused by temperature fluctuations. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a top view of the galvanizing bin and the filter bin of this utility model;

[0020] Figure 2 This is a top view of the overall structure of this utility model;

[0021] Figure 3 This is a side view of the pool structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the filter cylinder of this utility model;

[0023] In the diagram: 1. Tank body; 101. Filter chamber; 102. Galvanized chamber; 103. S-shaped flow channel; 104. Suspended partition; 105. Annular groove; 106. Thermal insulation outer layer; 2. Filter cylinder; 201. Filter cloth layer; 202. Metal filter tube; 203. Ion exchange resin; 204. Activated carbon layer; 205. Ultrafiltration membrane layer; 3. Transition box; 301. Zinc ion concentration sensor; 302. pH sensor; 4. Circulation pump; 401. Liquid extraction pipe; 402. Liquid delivery pipe; 5. Return pipe; 6. Electric heating block; 7. Stirring motor; 701. Spiral stirring blade; 8. Temperature sensor; 9. Support frame assembly; 901. Electric lifter; 902. Horizontal frame; 903. Support frame; 904. Protective net; 905. Support chamber; 10. Encapsulation cover plate; 11. Controller. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-4 One embodiment of this utility model provides a multifunctional circuit board galvanizing device, comprising a pool body 1 consisting of a filter chamber 101 and a galvanizing chamber 102, and further comprising...

[0026] The filter cylinder 2 is located inside the filter chamber 101. Inside the filter cylinder 2, there are sequentially arranged filter cloth layer 201, metal filter tube 202, ion exchange resin 203, activated carbon layer 204 and ultrafiltration membrane layer 205. The ion exchange resin 203 includes strong acid cation exchange resin and strong base anion exchange resin.

[0027] An encapsulation cover 10 is installed at the opening of the filter chamber 101 above the filter cylinder 2, and a controller 11 is installed on the top of the encapsulation cover 10.

[0028] The filter chamber 101 is mainly used for filtering and purifying solutions, while the galvanizing chamber 102 is used for galvanizing circuit boards.

[0029] The filter cylinder 2 is located inside the filter chamber 101, and its structure is as follows: Figure 4 As shown, the interior of the filter cylinder 2 is sequentially provided with a filter cloth layer 201, a metal filter tube 202, an ion exchange resin 203, an activated carbon layer 204, and an ultrafiltration membrane layer 205.

[0030] Filter cloth layer 201: Located on the outermost layer of filter cylinder 2, it is mainly used for preliminary filtration of large particulate impurities in the solution. Filter cloth layer 201 is made of corrosion-resistant and high-precision filtration material.

[0031] Metal filter tube 202: Closely attached to the inside of the filter cloth layer 201, used for further filtering of fine particulate impurities. The metal filter tube 202 is made of stainless steel, which has excellent corrosion resistance and mechanical strength.

[0032] Ion exchange resin 203: Located inside the metal filter tube 202, it includes a strongly acidic cation exchange resin and a strongly basic anion exchange resin. This layer is mainly used to remove ionic impurities from the solution, ensuring the purity of the zinc plating solution. The ratio of the strongly acidic cation exchange resin to the strongly basic anion exchange resin is adjusted according to actual needs to achieve the best ion exchange effect.

[0033] Activated carbon layer 204: Located adjacent to the inner side of ion exchange resin 203, it is mainly used to adsorb organic impurities and odors in the solution, further improving the purity of the solution. Activated carbon layer 204 is made of activated carbon material with high adsorption performance.

[0034] Ultrafiltration membrane layer 205: Located in the innermost layer of the filter cartridge 2, it is used for fine filtration of tiny particles and molecular-level impurities in the solution. Ultrafiltration membrane layer 205 is made of ultrafiltration membrane material with high permeability and high rejection rate.

[0035] A circulation pump 4 is installed on the outside of the tank body 1 at the position corresponding to the filter chamber 101. The input end of the circulation pump 4 extends into the interior of the galvanizing tank 102 through the liquid extraction pipe 401. The output end of the circulation pump 4 is connected to the filter cylinder 2 through the liquid delivery pipe 402. The output end of the filter cylinder 2 is connected to a transition box 3. A zinc ion concentration sensor 301 and a pH value sensor 302 are installed on the top of the transition box 3. The output end of the transition box 3 is connected to a return pipe 5. The other end of the return pipe 5 extends into the interior of the galvanizing tank 102.

[0036] The pool body 1 is the main structure of the entire system, and a circulation pump 4 is installed on its outer side at the position corresponding to the filter chamber 101.

[0037] The input end of the circulating pump 4 extends into the interior of the galvanizing tank 102 via a liquid extraction pipe 401. The galvanizing tank 102 is a container for storing galvanizing solution. One end of the liquid extraction pipe 401 is located at the bottom of the galvanizing tank 102 to ensure that the galvanizing solution inside the tank can be extracted. The output end of the circulating pump 4 is connected to the filter cartridge 2 via a liquid delivery pipe 402. The length and diameter of the liquid delivery pipe 402 are designed according to actual needs to ensure that the galvanizing solution can be smoothly delivered to the filter cartridge 2.

[0038] The filter cylinder 2 is one of the core components of this system. It contains multiple layers of filter media for fine filtration of the zinc plating solution. The output end of the filter cylinder 2 is connected to a transition box 3. The function of the transition box 3 is to temporarily store the filtered zinc plating solution and provide an interface for subsequent testing and recirculation.

[0039] A zinc ion concentration sensor 301 and a pH sensor 302 are installed on the top of the transition tank 3. The zinc ion concentration sensor 301 is used to monitor the zinc ion concentration in the zinc plating solution in real time to ensure that it is within the range required by the process; the pH sensor 302 is used to monitor the pH value of the zinc plating solution to prevent it from being too high or too low, which would affect the zinc plating quality. The signals from the two sensors are transmitted to the control center via a data cable for real-time monitoring and adjustment.

[0040] The output end of the transition box 3 is connected to a return pipe 5, and the other end of the return pipe 5 extends into the galvanizing tank 102. The design of the return pipe 5 should ensure that the filtered and tested galvanizing solution can flow smoothly back to the galvanizing tank 102, forming a closed circulation system.

[0041] The interior of the galvanizing silo 102 is provided with an S-shaped flow channel 103 through suspended partitions 104 intermittently arranged on the inner walls of both sides. A support frame assembly 9 is provided on one side of the galvanizing silo 102. The support frame assembly 9 includes an electric lifter 901 intermittently installed on the outer wall of the tank body 1. The output end of the electric lifter 901 is equipped with a support frame 903 through a crossbeam 902. The support frame 903 is provided with a support silo 905 inside.

[0042] The side wall of the support frame 903 has an opening, and the inside of the opening is provided with a protective net 904.

[0043] The galvanizing bin 102 has a rectangular shape, and its interior is formed by suspended baffles 104 intermittently arranged on both inner walls to form an S-shaped flow channel 103. Specifically, the suspended baffles 104 are arranged at intervals along the length of the galvanizing bin 102, and the height of the baffles 104 is lower than the top of the galvanizing bin 102, thereby forming a tortuous S-shaped flow channel 103 inside the galvanizing bin 102.

[0044] The design of the S-shaped flow channel 103 is intended to extend the flow path of the zinc liquid within the galvanizing tank 102, thereby improving the utilization rate of the zinc liquid and ensuring the uniformity and quality of the coating on the surface of the workpiece.

[0045] The electric lifter 901 is intermittently installed on the outer wall of the pool body 1, and its output end is connected to the support frame 903 through the crossbar 902.

[0046] The crossbeam 902 is a rectangular steel tube structure, with one end fixed to the output end of the electric lift 901 and the other end connected to the bottom of the support frame 903. The crossbeam 902 is preferably made of corrosion-resistant stainless steel to ensure its long-term stability in a galvanized environment.

[0047] The support frame 903 is a welded steel frame structure with a load-bearing compartment 905 inside. The side walls of the support frame 903 have openings, and the inner sides of each opening are fitted with protective mesh 904. The design of the support frame 903 should ensure that it has sufficient strength and rigidity to support the weight of the plated parts and the molten zinc.

[0048] The support chamber 905 is located inside the support frame 903 and is used to hold the workpiece to be plated. The bottom and sides of the support chamber 905 are made of high-temperature and corrosion-resistant materials to ensure its stability in the high-temperature zinc liquid.

[0049] The protective net 904 is installed inside the opening on the side wall of the support frame 903. Its main function is to prevent the workpiece to be plated from accidentally falling off during the lifting process, ensuring operational safety. The protective net 904 is preferably made of high-strength stainless steel wire mesh, and the mesh size should be reasonably designed according to the size of the workpiece to be plated.

[0050] A stirring motor 7 is installed at the bottom of the tank 1, and the output end of the stirring motor 7 extends to the bottom of the galvanizing bin 102 and is equipped with a spiral stirring blade 701. A temperature sensor 8 is installed at the bottom of the galvanizing bin 102.

[0051] An annular groove 105 is provided in the middle of the inner wall of the galvanizing tank 102. An electric heating block 6 is installed inside the annular groove 105, and the outer side of the tank body 1 is wrapped with an insulation outer layer 106.

[0052] Stirring motor 7: The stirring motor 7 is installed at the bottom of the tank 1, and its output end extends to the bottom of the galvanizing bin 102. The function of the stirring motor 7 is to drive the spiral stirring blade 701 to rotate, so as to evenly stir the galvanizing solution and prevent the galvanizing solution from separating and settling.

[0053] Spiral agitator blade 701: The spiral agitator blade 701 is installed at the output end of the agitator motor 7, located at the bottom inside the galvanizing tank 102. The design of the spiral agitator blade 701 enables it to effectively agitate the galvanizing solution during rotation, ensuring the uniformity of the galvanizing solution.

[0054] Galvanizing bin 102: Galvanizing bin 102 is an independent space inside pool 1 used for galvanizing operations. An annular groove 105 is provided in the middle of the inner side wall of galvanizing bin 102 for installing electric heating blocks 6.

[0055] Temperature sensor 8: Temperature sensor 8 is installed at the bottom inside the galvanizing tank 102 to monitor the temperature of the galvanizing solution in real time. The signal from temperature sensor 8 is transmitted to the control system for precise control of the galvanizing solution temperature.

[0056] Electric heating block 6: The electric heating block 6 is installed inside the annular groove 105 for heating the zinc plating solution. The design of the electric heating block 6 enables it to heat the zinc plating solution evenly, ensuring temperature stability during the zinc plating process.

[0057] Insulation outer layer 106: The insulation outer layer 106 is wrapped around the outside of the pool body 1 to reduce heat loss and improve the energy efficiency of the equipment. The insulation outer layer 106 is made of high-efficiency insulation material and has good insulation effect.

[0058] In this embodiment, the circuit board to be processed is placed inside the bearing chamber 905, and the electric lift 901 lowers the support frame 903 via the crossbeam 902, allowing the support frame 903 to enter the galvanizing chamber 102. The stirring motor 7 starts, and its output spiral stirring blade 701 rotates, uniformly stirring the galvanizing solution in the galvanizing chamber 102 to ensure a uniform distribution of zinc ions. Simultaneously, the electric heating block 6 in the annular groove 105 on the inner wall of the galvanizing chamber 102 heats the galvanizing solution, and the temperature sensor 8 monitors the temperature of the galvanizing solution in real time and feeds it back to the control system to ensure that the temperature of the galvanizing solution remains stable within a suitable range. The circuit board undergoes galvanizing treatment in the S-shaped flow channel 103 within the galvanizing chamber 102. The S-shaped flow channel formed by the suspended partition 104 extends the flow path of the galvanizing solution, ensuring a uniform coating.

[0059] The circulation pump 4 starts, and its inlet pipe 401 draws zinc plating solution from the bottom of the zinc plating tank 102. The inlet pipe 401 transports the zinc plating solution to the outlet of the circulation pump 4, and then through the delivery pipe 402 to the filter cylinder 2. The plating solution first passes through the filter cloth layer 201 to remove larger particulate impurities. Then it enters the metal filter tube 202 to further filter fine particulate impurities. Subsequently, the plating solution flows through the ion exchange resin 203, where strong acid cation exchange resin and strong base anion exchange resin remove ionic impurities from the plating solution, improving the purity of the plating solution. The plating solution continues to pass through the activated carbon layer 204 to adsorb organic impurities and odors. Finally, it passes through the ultrafiltration membrane layer 205 for fine filtration of tiny particles and molecular-level impurities. The filtered plating solution flows into the transition tank 3. The zinc ion concentration sensor 301 at the top of the transition tank 3 monitors the zinc ion concentration in the plating solution in real time, and the pH sensor 302 monitors the pH value of the plating solution. The sensor transmits the monitoring data to the control center (controller 11 on top of the encapsulation cover 10) via a data cable. Based on the detection data, if the plating solution composition meets the requirements, the plating solution flows back to the galvanizing tank 102 through the return pipe 5; if the plating solution composition does not meet the requirements, the control center can automatically adjust the plating solution composition (such as adding relevant chemical substances) according to the data before allowing the plating solution to flow back to the galvanizing tank 102.

[0060] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0063] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-functional zinc plating apparatus for a circuit board, comprising a cell body (1) composed of a filter tank (101) and a zinc plating tank (102), characterized in that: Also includes A filter cylinder (2) is installed inside the filter chamber (101), and a circulation pump (4) is installed on the outside of the pool body (1) at the position corresponding to the filter chamber (101). The input end of the circulation pump (4) extends to the inside of the galvanizing chamber (102) through the liquid extraction pipe (401). The output end of the circulation pump (4) is connected to the filter cylinder (2) through the liquid delivery pipe (402). The output end of the filter cylinder (2) is connected to a transition box (3). A zinc ion concentration sensor (301) and a pH value sensor (302) are installed on the top of the transition box (3). The output end of the transition box (3) is connected to a return pipe (5). The other end of the return pipe (5) extends to the inside of the galvanizing chamber (102). The interior of the galvanizing tank (102) is provided with an S-shaped flow channel (103) through suspended partitions (104) intermittently arranged on the inner walls of both sides. A support frame assembly (9) is provided on one side of the galvanizing tank (102). The support frame assembly (9) includes an electric lifter (901) intermittently installed on the outer wall of the tank body (1). The output end of the electric lifter (901) is equipped with a support frame (903) through a crossbeam (902). A support tank (905) is provided inside the support frame (903).

2. The multi-functional galvanizing apparatus for a circuit board according to claim 1, wherein: A stirring motor (7) is installed at the bottom of the pool (1), and the output end of the stirring motor (7) extends to the bottom of the galvanizing bin (102) and is equipped with a spiral stirring blade (701). A temperature sensor (8) is installed at the bottom of the galvanizing bin (102).

3. The multi-functional galvanizing apparatus for a circuit board according to claim 1, wherein: The galvanized tank (102) has an annular groove (105) in the middle of its inner wall. An electric heating block (6) is installed inside the annular groove (105), and the tank body (1) is wrapped with an insulation outer layer (106).

4. The multi-functional galvanizing apparatus for a circuit board according to claim 1, wherein: The side wall of the support frame (903) is provided with an opening, and a protective net (904) is provided on the inside of each opening.

5. The multi-functional galvanizing apparatus for a circuit board according to claim 1, wherein: The filter cylinder (2) is provided with a filter cloth layer (201), a metal filter tube (202), an ion exchange resin (203), an activated carbon layer (204), and an ultrafiltration membrane layer (205) in sequence inside, and the ion exchange resin (203) includes a strong acid cation exchange resin and a strong base anion exchange resin.

6. The multi-functional galvanizing apparatus for a circuit board according to claim 1, wherein: An encapsulation cover (10) is installed at the opening of the filter chamber (101) above the filter cylinder (2), and a controller (11) is installed on the top of the encapsulation cover (10).

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