Plating tank liquid material adding device integrating production liquid supplementing, tank preparing and tank washing functions

Abstract

The invention belongs to the technical field of electroplating and chemical plating, and discloses a plating tank liquid material adding device integrating production liquid supplementing, tank preparing and tank washing functions, which comprises a plurality of liquid material storage units, a liquid material temporary storage unit, an operation tank unit, a liquid material distribution unit and a liquid material metering unit, the liquid material storage unit comprises a storage barrel; the operation tank unit comprises a plating tank; and the liquid material distribution unit comprises a pump. After line opening, the temporary storage barrel is arranged and used for storing liquid materials, the liquid materials are conveyed into the measuring cup in cooperation with the adding pump which is small in flow and accurate in liquid material adding, and the purpose of quantitatively adding the liquid materials into the plating tank can be achieved in cooperation with the liquid level sensor arranged in the measuring cup; therefore, the requirement for adding some missing liquid material during electroplating or chemical plating production is met, the concentration of the liquid material in the plating tank is further maintained, waste caused by adding more liquid material is prevented, and the problem of poor product quality caused by adding less liquid material is also avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of electroplating or electroless plating, and relates to a plating tank liquid supplementing device, in particular to a plating tank liquid supplementing device integrating the functions of production liquid supplementing, tank liquid dispensing and tank washing. BACKGROUND

[0002] The surface treatment technology commonly used in modern industry can be divided into chemical plating (uniform thickness, no edge effect) and electroplating (non-uniform thickness, edge effect) according to the uniformity of the distribution of the plating layer on the surface of a complex-shaped workpiece. Whether the chemical plating or the electroplating process is carried out, sulfuric acid, sodium hydroxide, hydrogen peroxide, hydrochloric acid and SPS liquid materials need to be consumed to assist the surface treatment of the workpiece. These liquid materials must be supplemented in time to maintain the stability of the plating liquid composition because they are continuously reduced in the production process due to the loss caused by the workpiece leaving the tank liquid, decomposition and consumption (especially at high temperatures), side reactions and the generation of the plating layer.

[0003] At present, the traditional way is to supplement on site by personnel on patrol observation and to monitor the liquid supplementing process in real time, which is relatively cumbersome. In order to overcome this problem, the patent CN216891309U discloses an electroplating tank liquid supplementing system, which connects the branch pipe with the liquid level valve by using a quick release assembly. When supplementing the electroplating tank, the quick release assembly and the liquid level valve are inserted into the corresponding branch pipe, so that the electroplating tank can be supplemented with liquid, and the liquid level valve is closed when it reaches the position where the liquid level valve is located, without the need for real-time monitoring of the liquid supplementing.

[0004] In the technical solution disclosed in the above patent, the problem of the need for real-time monitoring when supplementing the electroplating tank is solved to some extent, but the liquid supplementing method is rigid and still cannot do without personnel on patrol observation. More importantly, the concentration of the liquid in the electroplating tank changes with the production, and the above liquid supplementing method cannot take into account this concentration change problem, resulting in a decrease in quality and failing to meet the application requirements. SUMMARY

[0005] One of the purposes of the present application is to provide a plating tank liquid supplementing device integrating the functions of production liquid supplementing, tank liquid dispensing and tank washing, to solve the technical problem in the prior art that the concentration of the liquid in the electroplating tank cannot be selectively supplemented in small amounts and quantitatively accurately when supplementing the electroplating tank in production, resulting in the concentration of the liquid in the electroplating tank failing to meet the use requirements of electroplating or electroless plating. Another purpose of the present application is to solve the technical problem that a large amount of liquid cannot be supplied when washing or dispensing the electroplating tank before opening the line on the basis of achieving the above purpose.

[0006] The purposes of the present application can be achieved by the following technical solutions: A kind of plating tank liquid material adding device integrating production replenishment, tank and washing function, including multiple liquid material storage units, operation tank unit, liquid material distribution unit and liquid material metering unit;The liquid material storage unit includes storage barrel;Storage barrel is communicated with a central liquid supply pipe;Operation tank unit includes plating tank, and plating tank is internally provided with liquid inlet pipeline;The liquid material distribution unit includes pump;Pump output end is equipped with three-way pipe, one of the three-way pipe is communicated with pump, and other two mouths are respectively connected with first distribution main pipe and second distribution main pipe;First distribution main pipe is communicated with multiple first distribution branch pipes in parallel structure, and first electromagnetic valve is installed on each first distribution branch pipe;Second distribution main pipe is communicated with multiple second distribution branch pipes in parallel structure, and second electromagnetic valve is installed on each second distribution branch pipe;The other end of first distribution branch pipe and second distribution branch pipe is communicated with the same corresponding plating tank, and the other end of second distribution branch pipe is communicated with plating tank via liquid inlet pipeline;Each first distribution branch pipe is also connected with liquid material temporary storage unit, and is communicated with plating tank after liquid material temporary storage unit distributes medicine water delivery amount.

[0007] Preferably, the top of the storage barrel is provided with a first liquid level sensor a, a second liquid level sensor a and a third liquid level sensor a with the detection end extending into the interior of the storage barrel.

[0008] Preferably, the liquid material temporary storage unit includes a temporary storage barrel, and the temporary storage barrel is provided with a communication pipe connected with the corresponding first distribution branch pipe.

[0009] Preferably, the top of the temporary storage barrel is provided with a first liquid level sensor b, a second liquid level sensor b and a third liquid level sensor b with the detection end extending into the interior of the temporary storage barrel.

[0010] Preferably, the liquid material metering unit includes an adding pump, a measuring cup and a third electromagnetic valve, the adding pump extracts the liquid material in the temporary storage barrel, the first liquid pipe is used to deliver the liquid material to the measuring cup, and then the liquid material is delivered to the interior of the corresponding plating tank through the second liquid pipe.

[0011] Preferably, the side of the temporary storage barrel is fixedly connected with a fixed support, the fixed support is provided with a liquid delivery pipe extending into the interior of the temporary storage barrel, and the liquid delivery pipe is provided with a pneumatic pump corresponding to the fixed support.

[0012] Preferably, when the plating tank is maintained and washed, the following steps are included: A100: add sulfuric acid, sodium hydroxide and hydrogen peroxide and other liquid materials used for washing into each storage barrel through the central liquid supply pipe, and use the third liquid level sensor a to detect the liquid material and issue an alarm and stop adding liquid material into the interior of the storage barrel when the liquid material is detected; A200: use the pump and the three-way pipe to cooperate to deliver the liquid material used for cleaning to the second distribution main pipe, then open the pipeline corresponding to the second distribution branch pipe through the second electromagnetic valve, so that the liquid material is directly delivered to the interior of the corresponding plating tank through the liquid inlet pipeline. A300: The liquid material entering the inside of the plating tank flushes and replaces the residual liquid material in the plating tank, so as to maintain the purity of the plating tank.

[0013] Preferably, when the plating tank is opened and arranged, the following steps are included: B100: Add the liquid materials, such as sulfuric acid, sodium hydroxide, hydrogen peroxide, hydrochloric acid and SPS, used for configuring the initial plating solution into each storage barrel through the central liquid supply pipe, and stop adding the liquid material into the inside of the storage barrel when the third liquid level sensor a detects the liquid material and alarms. B200: Use the pump and the three-way pipe to transfer the liquid materials used for configuring the initial plating solution in each storage barrel to the corresponding second distribution main pipe, and then open the pipeline of the corresponding second distribution branch pipe through the second electromagnetic valve, so that the liquid material in one or more storage barrels is directly transferred to the inside of the corresponding plating tank through the liquid inlet pipeline. B300: Stop supplying liquid after the liquid material entering the inside of the plating tank is full.

[0014] Preferably, when the plating tank generates the replenishment liquid, the following steps are included: C100: Add the liquid materials, such as sulfuric acid, sodium hydroxide, hydrogen peroxide, hydrochloric acid and SPS, used for production into each storage barrel through the central liquid supply pipe, and supply the liquid material for production deficiency to the first distribution main pipe through the cooperation of the pump and the three-way pipe, and then the first distribution main pipe supplies the liquid material to the first distribution branch pipe after the first electromagnetic valve opens the corresponding first distribution branch pipe, and cooperates with the connecting pipe to add the temporarily stored liquid material into the inside of the temporary storage barrel. C200: Configure the liquid level sensor in the inside of the measuring cup, and adjust the height of the liquid level sensor to the corresponding range height position according to the volume of the liquid material needed to be added for each plating tank. C300: The adding pump extracts the liquid material from the inside of the temporary storage barrel and supplies it to the measuring cup, and when the liquid material in the inside of the measuring cup rises to the specified range height position, the liquid level sensor alarms and the adding pump stops running, the third electromagnetic valve opens the second liquid pipeline, and the liquid material in the inside of the measuring cup enters the inside of the plating tank along the second liquid pipeline.

[0015] The beneficial effects of the present application are: 1. The application adopts a pump with large flow to directly pump the liquid material in the storage barrel into the plating tank before opening the line, which can improve the liquid material supply amount, is more efficient, and can meet the use requirements of maintaining the washing tank and opening the line to match the tank, after opening the line, the temporary storage barrel is arranged, and the liquid material is stored in the temporary storage barrel, and the liquid material is delivered to the measuring cup by cooperating with the adding pump with small flow but precise liquid material adding, and the purpose of adding the liquid material to the inside of the plating tank quantitatively can be realized by cooperating with the liquid level sensor arranged inside, so as to meet the demand of adding a certain missing liquid material during electroplating or electroless plating production, and then maintain the concentration of the liquid material in the plating tank, which not only prevents waste caused by adding too much liquid material, but also avoids the problem of poor product quality caused by adding too little liquid material.

[0016] 2. The liquid material shunting delivery method realized by adopting the first distribution main pipe and its accessories and the second distribution main pipe and its accessories, different liquid material delivery ways are adopted for two different application scenes before and after opening the line, the start and stop of the adding system can be controlled according to each liquid level sensing device, the sensing device directly transmits the signal to the computer end when detecting that the liquid material is reduced, and the computer directly controls the execution end to start adding, without manual line searching and observation, saving manpower, and being able to adapt to more complex adding systems.

[0017] 3. Since the pipelines of each type of liquid material or other liquid directly correspond to each plating tank, loss caused by manual misoperation is avoided, and since part of the liquid material has strong corrosiveness (such as hydrochloric acid) or toxicity, manual operation has safety hazards, the automatic adding mode is safer, the quantitative adding mode is more accurate, secondary pollution caused by excessive addition can be eliminated, and wastewater discharge can meet the standard, which is more environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0018] The application will be further described below in combination with the drawings.

[0019] Figure 1 is a schematic diagram of the overall structure of the application; Figure 2 is a schematic diagram of the liquid material storage unit of the application; Figure 3 is a schematic diagram of the liquid material temporary storage unit of the application; Figure 4 is a schematic diagram of the operation tank unit structure of the application; Figure 5 is a schematic diagram of the liquid material distribution unit structure of the application; Figure 6 is a schematic diagram of the liquid material metering unit structure of the application; Figure 7 is a schematic diagram of the pipeline parallel structure of the application; Figure 8 is a schematic diagram of the pneumatic pump structure of the application.

[0020] Fig. 1, liquid material storage unit; 2, liquid material temporary storage unit; 3, working tank unit; 4, liquid material distribution unit; 5, liquid material metering unit; 101, storage barrel; 102, first liquid level sensor a; 103, second liquid level sensor a; 104, third liquid level sensor a; 105, central liquid supply pipe; 201, temporary storage barrel; 202, first liquid level sensor b; 203, second liquid level sensor b; 204, third liquid level sensor b; 205, connecting pipe; 301, plating tank; 302, liquid inlet pipe; 401, pump; 402, three-way pipe; 403, first distribution main pipe; 404, first electromagnetic valve; 405, first distribution branch pipe; 406, second distribution main pipe; 407, second electromagnetic valve; 408, second distribution branch pipe; 501, additive pump; 502, first liquid passage pipe; 503, measuring cup; 504, third electromagnetic valve; 505, second liquid passage pipe; 2011, fixing support; 2012, pneumatic pump; 2013, liquid delivery pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] Please refer to Figure 1 As shown in the figure, a plating tank liquid material adding device integrating production of replenishing liquid, distribution of tanks and washing of tanks includes liquid material storage units 1, working tank units 3, liquid material temporary storage units 2, liquid material distribution units 4 and liquid material metering units 5. The liquid material storage units 1 are provided in plurality and are respectively used for storing sulfuric acid, sodium hydroxide, hydrogen peroxide, hydrochloric acid, SPS (sodium polydithiopropyl sulfone), brightener and buffer and the like; The working tank units 3 are provided in plurality and are respectively used for performing processes of pre-neutralization, neutralization, micro-etching, pre-impregnation and copper plating and the like; The liquid material distribution units 4 are provided in one-to-one correspondence with the liquid material storage units 1 and are used for inputting the liquid materials in the liquid material storage units 1 into the working tank units 3; The liquid material temporary storage units 2 are connected with the liquid material distribution units 4 and the working tank units 3 and are used for controlling the amount of liquid material delivered by the liquid material distribution units 4 to the working tank units 3; The liquid material metering unit 5 is connected with the liquid material temporary storage unit 2 and the working tank unit 3, and is used for controlling the amount of the liquid medicine delivered from the liquid material temporary storage unit 2 to the working tank unit 3.

[0023] Please refer to the figure again Figure 2 As shown in the figure, specifically, each unit comprises the following structure: The liquid material storage unit 1 comprises a storage barrel 101, and the top of the storage barrel 101 is provided with a first liquid level sensor a102, a second liquid level sensor a103 and a third liquid level sensor a104, wherein the first liquid level sensor a102 is used for detecting an ultralow liquid level line in the storage barrel 101, the second liquid level sensor a103 is used for detecting a low liquid level line in the storage barrel 101, and the third liquid level sensor a104 is used for detecting a high liquid level line in the storage barrel 101; the storage barrel 101 is connected with a central liquid supply pipe 105, which is used for delivering the prepared liquid medicine into the storage barrel 101 for production use.

[0024] Please refer to the figure again Figure 4 As shown in the figure, the working tank unit 3 comprises a plating tank 301, and the plating tank 301 is internally provided with a liquid inlet pipe 302, wherein the upper end of the liquid inlet pipe 302 is located at the top of the plating tank 301, and the lower end of the liquid inlet pipe 302 is located at the bottom of the plating tank 301.

[0025] Please refer to the figure again Figure 5 As shown in the figure, the liquid material distribution unit 4 comprises a pump 401, wherein the input end of the pump 401 is connected with the corresponding storage barrel 101 through a pipe; the output end of the pump 401 is provided with a three-way pipe 402, wherein one port of the three-way pipe 402 is connected with the pump 401, and the other two ports are respectively connected with a first distribution main pipe 403 and a second distribution main pipe 406.

[0026] The first distribution main pipe 403 is connected with a plurality of first distribution branch pipes 405 in parallel, and each first distribution branch pipe 405 is provided with a first electromagnetic valve 404.

[0027] The second distribution main pipe 406 is connected with a plurality of second distribution branch pipes 408 in parallel, and each second distribution branch pipe 408 is provided with a second electromagnetic valve 407.

[0028] The other end of each of the first distribution branch pipe 405 and the second distribution branch pipe 408 is connected with the same corresponding plating tank 301, and the difference lies in that the other end of the second distribution branch pipe 408 is directly connected with the liquid inlet pipe 302, so as to realize the connection with the plating tank 301, and the liquid material temporary storage unit 2 is further connected with each first distribution branch pipe 405, and the liquid material temporary storage unit 2 is connected with the plating tank 301 after the delivery amount of the liquid medicine is distributed.

[0029] Please refer to the figure again Figure 3As shown, the liquid material temporary storage unit 2 comprises a temporary storage barrel 201; the temporary storage barrel 201 is provided with a communication pipe 205 connected with the corresponding first distribution branch pipe 405; the temporary storage barrel 201 is provided at the top with a first liquid level sensor b202, a second liquid level sensor b203 and a third liquid level sensor b204 with the detection ends extending into the interior of the temporary storage barrel 201, wherein the first liquid level sensor b202, the second liquid level sensor b203 and the third liquid level sensor b204 are respectively used for detecting the ultralow liquid level line, the low liquid level line and the high liquid level line in the interior of the temporary storage barrel 201.

[0030] Please refer again to Figure 6 As shown, the liquid material metering unit 5 comprises an adding pump 501, a measuring cup 503 and a third electromagnetic valve 504, the adding pump 501 is used for extracting the liquid material in the temporary storage barrel 201 and conveying the liquid material to the measuring cup 503 through a first liquid conveying pipe 502, and after the third electromagnetic valve 504 is opened, the liquid material is conveyed to the interior of the corresponding plating tank 301 through a second liquid conveying pipe 505.

[0031] Please refer again to Figure 1 and Figure 7 As shown, the liquid material adding device provided by the application has two application scenarios of before starting the production line and after starting the production line (starting the production line refers to starting to use the production line and preparing to carry out production work), in order to facilitate the understanding of the above technical solution of the application, the working principle or operation mode of the application before starting the production line and after starting the production line in the actual process will be described in detail below: Before starting the production line, in order to prolong the service life of the plating tank 301, tank washing work needs to be carried out, specifically, the liquid material (for example, sulfuric acid, sodium hydroxide and hydrogen peroxide) is conveyed into the interior of the plating tank 301 to clean the plating tank 301, remove the residual liquid or other impurities from the plating tank 301, and maintain the cleanliness of the plating tank 301, which has the following steps: A100: add sulfuric acid, sodium hydroxide, hydrogen peroxide, hydrochloric acid and SPS and other liquid materials used for production into each storage barrel 101 through the central liquid supply pipe 105, and stop adding liquid material into the interior of the storage barrel 101 when the liquid material is detected by the third liquid level sensor a104 and an alarm is issued. Further, when the liquid material is not detected by the second liquid level sensor a103, the operator is prompted to supply the medicine in the form of sound or light, and the self-defined program can be used to automatically supply the medicine.

[0032] It is worth noting here that each storage barrel 101 only stores one kind of liquid material, and in specific applications, one or more storage barrels 101 cooperate to convey one kind of liquid material or multiple kinds of liquid materials into the interior of the same corresponding plating tank 301 for production needs.

[0033] A200: The pump 401 cooperates with the three-way pipe 402 to send the liquid for cleaning to the second distribution main pipe 406, and then the second electromagnetic valve 407 opens the pipeline corresponding to the second distribution branch pipe 408, so that the liquid is directly sent to the corresponding plating tank 301 through the liquid inlet pipe 302. It should be noted that when the first liquid level sensor a102 in the storage barrel 101 does not detect the liquid, the pump 401 directly stops running, and prompts the operator to add the liquid, so as to prevent the pump 401 from running empty and being damaged. In addition, when the second distribution main pipe 406 is opened, the first distribution main pipe 403 should be in a closed state, and similarly, when the first distribution main pipe 403 is opened, the second distribution main pipe 406 should be in a closed state, to prevent the liquid from flowing.

[0034] A300: The liquid entering the plating tank 301 flushes and replaces the residual liquid in the plating tank 301, so as to maintain the purity of the plating tank 301 and complete the maintenance work of the plating tank 301 before the line opening.

[0035] Before the line opening, in order to ensure the concentration of the liquid in the plating tank 301, the line opening and tank preparation need to be performed, that is, various liquid materials needed for production are introduced into the plating tank 301 to prepare an initial plating solution with accurate chemical composition concentration, coordinated proportion, and balanced additives, which has the following steps: B100: The central liquid supply pipe 105 is used to add sulfuric acid, sodium hydroxide, hydrogen peroxide, hydrochloric acid, SPS and other liquid materials for configuring the initial plating solution into each storage barrel 101, and the third liquid level sensor a104 detects the liquid and sends an alarm and stops adding liquid into the storage barrel 101.

[0036] B200: The pump 401 cooperates with the three-way pipe 402 to send the liquid for production in each storage barrel 101 to the corresponding second distribution main pipe 406, and then the second electromagnetic valve 407 opens the pipeline corresponding to the second distribution branch pipe 408, so that the liquid in one or more storage barrels 101 is directly sent to the corresponding plating tank 301 through the liquid inlet pipe 302.

[0037] B300: After the liquid entering the plating tank 301 is filled (referring to the dosage that can meet the production use), the liquid supply is stopped, and the initial plating solution preparation work before the line opening is completed.

[0038] In the above maintenance tank and open line tank liquid material adding steps, they are basically the same, the difference is that when maintaining the tank, the residual liquid or impurities in the plating tank 301 are removed to avoid the mixed liquid produced in the last production polluting and damaging the plating tank 301 when it is not used for a long time, which belongs to daily maintenance work to avoid affecting the service life, while the open line tank is to add the initial plating solution in the plating tank 301 before starting the production operation for the products that need surface treatment, which is a kind of production preparation work, both of which need to use the second distribution main pipe 406 to directly supply the liquid material, but the maintenance tank may only need to provide one kind of liquid material, while the open line tank needs to supply multiple liquid materials synchronously under normal circumstances.

[0039] After the line is opened, a small amount of liquid material needs to be continuously added to the plating tank 301 during production to maintain the amount and concentration of the liquid material in the plating tank 301, which is as follows: C100: Add the liquid material used for production to each storage barrel 101 through the central liquid supply pipe 105 (only one kind of liquid material is added to one storage barrel 101), and use the cooperation of the pump 401 and the three-way pipe 402 to supply the liquid material to the first distribution main pipe 403, then after the first electromagnetic valve 404 opens the corresponding first distribution branch pipe 405, the first distribution main pipe 403 delivers the liquid material to the first distribution branch pipe 405, and cooperates with the connecting pipe 205 to add the temporarily stored production missing liquid material to the inside of the temporary storage barrel 201. Further, when the liquid material delivered in the temporary storage barrel 201 reaches the liquid level line monitored by the third liquid level sensor b204, the pump 401 is closed, and when the liquid material reaches the liquid level line height monitored by the second liquid level sensor b203, the pump 401 is opened to start liquid supplement.

[0040] C200: Configure a liquid level sensor in the measuring cup 503 (the range is 500 ml in this embodiment), and adjust the height of the liquid level sensor to the corresponding range height position according to the volume of the liquid material needed to be added to each plating tank 301.

[0041] C300: Add the pump 501 to extract the liquid material from the temporary storage barrel 201 and deliver it to the measuring cup 503, when the liquid material in the measuring cup 503 rises to the specified range height position, the liquid level sensor alarms, and the addition pump 501 stops running, the third electromagnetic valve 504 opens the second liquid pipe 505, and the liquid material in the measuring cup 503 enters the inside of the plating tank 301 along the second liquid pipe 505. Among them, when the liquid material delivered in the temporary storage barrel 201 reaches the liquid level line monitored by the first liquid level sensor b202, the addition pump 501 is closed to prevent idling damage.

[0042] In the above-mentioned liquid material adding process, when the liquid material in the plating tank 301 is replenished with solvent or base liquid, the operation of the adding pump 501 is controlled by using a floating ball combined with a travel switch, so as to achieve the purpose of automatic replenishment of solvent or base liquid. Specifically, the liquid level of the electroplating liquid is monitored by using a floating ball, and when the liquid level drops, the adding pump 501 or valve is triggered to replenish the liquid. When the concentration of the liquid material in the plating tank 301 needs to be maintained, an online analyzer (such as a MAZ-XR300 online analyzer which can simultaneously detect multiple metal ions and non-metal components) is used to detect the concentration of metal ions or additives in the electroplating liquid in real time by using a spectrum (such as Moseley's law) or an electrochemical sensor (such as a PH electrode or an ion selective electrode), and the control system is fed back (the dosage is dynamically adjusted by using a PID algorithm, or the consumption trend is predicted by using an AI model) to adjust the dosage, so as to achieve consistent liquid concentration. Further, the consumption rate of some chemicals is stable, and at this time, a preset dosing program can be used in combination with periodic calibration, such as adding X liters (X is a constant) per hour, so as to achieve the purpose of automatic replenishment of such liquid materials.

[0043] In summary, the main reason for using the first distribution main pipe 403 and the second distribution main pipe 406 to supply chemicals before and after the opening of the line is that the supply efficiency and precision of the liquid materials supplied by the first distribution main pipe 403 and the second distribution main pipe 406 are different. Before the opening of the line, in addition to regular maintenance, a large amount of liquid material is needed to flush and replace the residual liquid material and impurities in the plating tank 301, so the liquid material in the storage tank 101 is directly pumped into the plating tank 301 by using the pump 401 with a larger flow rate (the flow rate of the pump 401 is larger because the liquid material needs to be quickly filled into the temporary storage tank 201 to improve the operating efficiency), which can improve the supply amount of the liquid material and improve the efficiency. After the opening of the line, the plating tank 301 is often replenished with chemicals, and the replenishment is generally performed in a small amount and multiple times, so the pump 401 with a large flow rate cannot meet the use requirement of small amount and multiple times. On this basis, by setting the temporary storage tank 201 and storing a small amount of liquid material in the temporary storage tank 201, the liquid material is delivered to the measuring cup 503 by using the adding pump 501 (such as a plunger pump) with a small flow rate but high precision of liquid material addition, and the liquid level sensor arranged inside the measuring cup 503 can realize the effect of adding a small amount of liquid material to the inside of the plating tank 301, which has high precision and can prevent waste caused by adding too much liquid material and avoid poor product quality caused by adding too little liquid material.

[0044] Specifically, as shown in FIG. 6, the first distribution main pipe 403 is connected to the pump 401, and the pump 401 is connected to the temporary storage tank 201. The temporary storage tank 201 is connected to the second distribution main pipe 406, and the second distribution main pipe 406 is connected to the adding pump 501. The adding pump 501 is connected to the measuring cup 503, and the measuring cup 503 is connected to the plating tank 301. Figure 7As shown, the present application realizes the liquid material diversion conveying method by adopting the first distribution main pipe 403 and its accessories and the second distribution main pipe 406 and its accessories, adopts different liquid material conveying methods for two different application scenarios before and after opening the line, and shows higher and more intelligent automation level. The limitations of manual operation are solved, the device can control the start and stop of the adding system according to each liquid level sensing device, the sensing device detects that the liquid material is reduced and directly transmits the signal to the computer end, and the computer directly controls the execution end to start adding, without manual line searching and observation, saving manpower, and being suitable for more complex adding system. At the same time, since the pipeline of each model of liquid material or other liquid directly corresponds to each plating tank 301, loss caused by manual misoperation (such as A agent should be added to A tank, but added to B tank) will not occur, automatic adding reduces manual intervention, reduces operation error, and is suitable for efficient operation of continuous electroplating or chemical plating production line. In addition, since part of the liquid material has strong corrosiveness (such as hydrochloric acid) or toxicity, manual operation has safety hazards, automatic adding is more secure, quantitative adding is more accurate, can eliminate secondary pollution caused by excessive addition and help wastewater discharge to meet the standard, and is more environmentally friendly.

[0045] Further, please refer again to Figure 8 As shown, if the device fails to add liquid material, in order to maintain the continuity of production, a redundant design is made on the temporary storage barrel 201, specifically: The temporary storage barrel 201 is fixedly connected with a fixed support 2011; the fixed support 2011 is provided with a liquid conveying pipe 2013 extending into the inside of the temporary storage barrel 201; and the liquid conveying pipe 2013 is provided with a pneumatic pump 2012 corresponding to the fixed support 2011. In specific use, the liquid material barrel containing liquid material is moved below the pneumatic pump 2012, and the pneumatic pump 2012 is used to manually add liquid material into the temporary storage barrel 201, so as to maintain the normal operation of the device.

[0046] It should be noted that in this document, terms such as "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices.

[0047] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application.

Claims

1. A plating bath material addition device integrating production replenishment, tank preparation, and tank washing functions, characterized in that: It comprises a plurality of liquid storage units (1), liquid temporary storage units (2), work tank units (3), liquid distribution units (4) and liquid metering units (5); The liquid storage unit (1) comprises a storage barrel (101); The work tank unit (3) comprises a plating tank (301); The liquid distribution unit (4) comprises a pump (401); a three-way pipe (402) is installed at the output end of the pump (401), one of the ports of the three-way pipe (402) is communicated with the pump (401), and the other two ports are respectively connected with a first distribution main pipe (403) and a second distribution main pipe (406); A plurality of first distribution branch pipes (405) are connected in parallel on the first distribution main pipe (403); a plurality of second distribution branch pipes (408) are connected in parallel on the second distribution main pipe (406); Each first distribution branch pipe (405) is connected with a liquid temporary storage unit (2), the liquid temporary storage unit (2) is connected with a liquid metering unit (5), and the liquid metering unit (5) is communicated with a plating tank (301); Each second distribution branch pipe (408) is communicated with the plating tank (301) through a liquid inlet pipeline (302); Among them, at least one first distribution branch pipe (405) and one second distribution branch pipe (408) are communicated on each plating tank (301).

2. The plating bath liquid material adding device integrated with production replenishing, tank preparing and tank washing functions according to claim 1, characterized in that: The top of the storage barrel (101) is provided with a first liquid level sensor a (102), a second liquid level sensor a (103) and a third liquid level sensor a (104) with the detection end extending into the inside of the storage barrel.

3. The plating bath liquid material adding device integrated with the functions of production replenishment, tank preparation and tank washing according to claim 1, characterized in that: The liquid temporary storage unit (2) comprises a temporary storage barrel (201); the temporary storage barrel (201) is provided with a communication pipe (205) connected with the corresponding first distribution branch pipe (405).

4. The plating bath liquid material adding device integrated with the functions of producing replenishment liquid, dispensing tank and washing tank according to claim 3, characterized in that: The top of the temporary storage barrel (201) is provided with a first liquid level sensor b (202), a second liquid level sensor b (203) and a third liquid level sensor b (204) with the detection end extending into the inside of the temporary storage barrel.

5. The plating bath liquid material adding device integrated with the functions of producing replenishment liquid, dispensing tank and washing tank according to claim 3, characterized in that: The liquid metering unit (5) comprises an adding pump (501), a measuring cup (503) and a third electromagnetic valve (504), the adding pump (501) draws the liquid in the temporary storage barrel (201), the liquid is transported to the measuring cup (503) through a first liquid conveying pipe (502), and then the liquid is transported to the inside of the corresponding plating tank (301) through a second liquid conveying pipe (505).

6. The plating bath liquid material adding device integrated with the functions of production replenishment, tank preparation and tank washing according to claim 3, characterized in that: The side of the temporary storage barrel (201) is fixedly connected with a fixed support (2011); the fixed support (2011) is provided with a liquid conveying pipe (2013) extending into the inside of the temporary storage barrel (201); the liquid conveying pipe (2013) is provided with a pneumatic pump (2012) corresponding to the fixed support (2011).

7. The apparatus for adding plating bath liquid according to claim 1, wherein: The storage barrel (101) is communicated with a central liquid supply pipe (105); a first electromagnetic valve (404) is installed on each first distribution branch pipe (405); a second electromagnetic valve (407) is installed on each second distribution branch pipe (408).

8. The apparatus for adding plating bath liquid according to claim 1, wherein: When the plating tank (301) is maintained and washed, the following steps are included: A100: Add liquid material for washing to each storage barrel (101) through the central liquid supply pipe (105), and use the third liquid level sensor a (104) to detect the liquid material and issue an alarm and stop adding liquid material to the inside of the storage barrel (101); A200: Use the pump (401) in cooperation with the three-way pipe (402) to transport the liquid material for cleaning to the second distribution main pipe (406), and then open the pipeline corresponding to the second distribution branch pipe (408) through the second electromagnetic valve (407), so that the liquid material is directly transported to the inside of the corresponding plating tank (301) through the liquid inlet pipe (302); A300: The liquid material entering the inside of the plating tank (301) flushes and replaces the residual liquid material in the plating tank (301), thereby maintaining the purity of the plating tank (301).

9. The apparatus for adding plating bath liquid according to claim 1, wherein: When the plating tank (301) is opened, the following steps are included: B100: Add liquid material for configuring initial plating solution to each storage barrel (101) through the central liquid supply pipe (105), and use the third liquid level sensor a (104) to detect the liquid material and issue an alarm and stop adding liquid material to the inside of the storage barrel (101); B200: Use the pump (401) in cooperation with the three-way pipe (402) to transport the liquid material for configuring initial plating solution in each storage barrel (101) to the corresponding second distribution main pipe (406), and then open the pipeline corresponding to the second distribution branch pipe (408) through the second electromagnetic valve (407), so that the liquid material in one or more storage barrels (101) is directly transported to the inside of the corresponding plating tank (301) through the liquid inlet pipe (302); B300: Stop supplying liquid after the liquid material entering the inside of the plating tank (301) is full.

10. The apparatus for adding plating bath liquid according to claim 1, wherein: When the plating tank (301) produces replenishment, the following steps are included: C100: Add liquid material for production use to each storage barrel (101) through the central liquid supply pipe (105), and use the cooperation of the pump (401) and the three-way pipe (402) to supply the liquid material missing in production to the first distribution main pipe (403), and after the first electromagnetic valve (404) makes the corresponding first distribution branch pipe (405) pass, the first distribution main pipe (403) transports the liquid material to the first distribution branch pipe (405), and cooperates with the connecting pipe (205) to add the temporarily stored liquid material to the inside of the temporary storage barrel (201); C200: Configure a liquid level sensor inside the measuring cup (503), and adjust the height of the liquid level sensor to the corresponding range height position according to the volume of liquid material needed to be added for each plating tank (301); C300: Add pump (501) to extract liquid material from the inside of the temporary storage barrel (201) and transport it to the measuring cup (503), when the liquid material inside the measuring cup (503) rises to the specified range height position, the liquid level sensor alarms, the addition pump (501) stops running, the third electromagnetic valve (504) opens the second liquid pipe (505), and the liquid material inside the measuring cup (503) enters the inside of the plating tank (301) along the second liquid pipe (505).

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