阅读说明：本技术 一种免换滤芯的线路板电镀液智能过滤系统及其使用方法 (Circuit board electroplating solution intelligent filtering system free of filter element replacement and using method thereof ) 是由 张燕厚 于 2019-12-27 设计创作，主要内容包括：本发明提供一种免换滤芯的线路板电镀液智能过滤系统及其净化方法,包括智能控制面板、电镀液药槽、过滤泵及多组精密过滤模组,电镀液药槽的出液口通过管道与过滤泵相连接,过滤泵通过管道与进水阀相连接,进水阀通过管道与精密过滤模组相连接,精密过滤模组上连接有第一管道、第四管道和第五管道,第三管道、第四管道和第五管道均与第二管道相连通,第二管道与电镀液药槽的进液口相连且在第二管道上设置有电去除TOC装置,第一管道与第三管道相连通；本发明实现高精度全自动运行过滤、自动实时清洗,保证过滤效果,节省滤芯更换成本,避免了过滤器中残留的电镀液流失浪费,减少企业生产成本。(The invention provides a circuit board electroplating solution intelligent filtering system without replacing a filter element and a purifying method thereof, and the system comprises an intelligent control panel, an electroplating solution medicine tank, a filtering pump and a plurality of groups of precise filtering modules, wherein a liquid outlet of the electroplating solution medicine tank is connected with the filtering pump through a pipeline, the filtering pump is connected with a water inlet valve through a pipeline, the water inlet valve is connected with the precise filtering modules through a pipeline, the precise filtering modules are connected with a first pipeline, a fourth pipeline and a fifth pipeline, the third pipeline, the fourth pipeline and the fifth pipeline are all communicated with a second pipeline, the second pipeline is connected with a liquid inlet of the electroplating solution medicine tank, an electric TOC removing device is arranged on the second pipeline, and the first pipeline is communicated with the third pipeline; the invention realizes high-precision full-automatic operation filtration and automatic real-time cleaning, ensures the filtration effect, saves the replacement cost of the filter element, avoids the waste of residual electroplating solution in the filter, and reduces the production cost of enterprises.)

1. The utility model provides a circuit board plating solution intelligence filtration system of filter core exempts from to trade, includes intelligent control panel, plating solution medicine groove, filter pump and multiunit secondary filter module, its characterized in that, the plating solution medicine groove is provided with inlet and liquid outlet, the liquid outlet of plating solution medicine groove is connected with the filter pump through the pipeline, the filter pump is connected with the water intaking valve through the pipeline, the water intaking valve is connected with the secondary filter module through the pipeline, be connected with first pipeline, third pipeline, fourth pipeline and fifth pipeline on the secondary filter module, fourth pipeline and fifth pipeline all are linked together with the second pipeline, the second pipeline links to each other with the inlet of plating solution medicine groove and is provided with the electricity and gets rid of the TOC device on the second pipeline, first pipeline is linked together with the third pipeline.

2. The intelligent filter system for circuit board electroplating solution without filter element replacement as claimed in claim 1, wherein the intelligent control panel is connected with a PLC controller for performing program control on the intelligent filter system, wherein the program control comprises an intelligent filter mode and a cleaning program.

3. The intelligent filter system for circuit board electroplating solution without replacing filter elements as claimed in claim 1, wherein the precise filter module is provided with a water inlet at the lower end, a concentrated water inlet at the upper end, and a first water producing port and a second water producing port at the upper and lower sides.

4. The intelligent filter system for circuit board electroplating solution without replacing filter elements as claimed in claim 3, wherein the first water producing port is connected with a fifth pipeline, the second water producing port is connected with a second pipeline, the concentrated water port is connected with a third pipeline, and the water inlet is connected with the first pipeline.

5. The intelligent filter system for circuit board electroplating solution without filter element replacement as claimed in claim 1, wherein a filtering pressure detector is arranged at a position of the first pipeline close to the precise filtering module, and an exhaust valve is further arranged on the first pipeline; an exhaust valve is also arranged on the third pipeline; a second water producing valve is also arranged on the fourth pipeline; and the fifth pipeline is also provided with a pure water inlet valve, a gas backwashing valve and a first water production valve.

6. The intelligent filter system for circuit board electroplating solution without replacing filter elements as claimed in claims 1 and 5, wherein the water inlet valve, the pure water inlet valve, the gas backwashing valve, the first water production valve, the second water production valve, the exhaust valve and the exhaust valve are electrically connected with the PLC controller, so as to realize switching between an intelligent filter mode and an automatic cleaning mode.

7. The intelligent filter system for circuit board electroplating solution without replacing filter elements as claimed in claim 5, wherein the pure water inlet valve is provided with a pure water inlet, and the air backwashing valve is provided with a compressed air inlet.

8. The method for purifying a circuit board electroplating solution intelligent filtering system without replacing filter elements as claimed in any one of claims 1 to 7, which comprises two working modes, wherein the working modes are divided into an intelligent filtering mode and an intelligent cleaning mode.

9. The method for purifying circuit board electroplating solution intelligent filtering system without replacing filter element as claimed in claim 8, wherein the intelligent filtering mode comprises the following steps:

s1, opening the water inlet valve and the first water producing valve and closing other valves;

s2, opening the filter pump, and enabling the electroplating solution to enter the precise filtering module from the electroplating solution tank through the filter pump, the water inlet valve and the water inlet of the precise filtering module in sequence;

s3, after filtering in the precise filtering module, enabling the filtrate to flow out of a first water producing port of the precise filtering module, and enabling the filtrate to flow back to the electroplating liquid medicine tank through a second pipeline and an electric removal TOC device arranged on the second pipeline.

10. The method for purifying a circuit board electroplating solution intelligent filtering system without replacing filter elements as claimed in claim 8, wherein the intelligent cleaning mode comprises the following steps:

s11, when the filtering pressure detector reaches a set value or a set time, the intelligent cleaning mode is started, the intelligent filtering mode stops running, and the intelligent filtering system automatically enters a backflushing cleaning function;

s12, opening a second water production valve and a gas backwashing valve, closing other valves, connecting compressed air through a compressed air inlet of the gas backwashing valve, and pressing the electroplating solution in the precise filtering module back to the electroplating solution tank by the compressed air sequentially passing through a fifth pipeline, a concentrated water inlet of the precise filtering module, a fourth pipeline, a second water production valve, a second pipeline and an electric TOC removal device, so that waste caused by loss of the residual electroplating solution along with cleaning is avoided;

s13, opening the exhaust valve and the pure water inlet valve, closing other valves, and introducing pure water through the pure water inlet of the pure water inlet valve, wherein the pure water sequentially passes through the fifth pipeline, the first water producing port of the precise filtering module, the concentrated water port of the precise filtering module, the 3 rd pipeline and the exhaust valve to be washed;

s14, opening an exhaust valve and a gas backwashing valve, closing other valves, and introducing compressed air through a compressed air inlet of the gas backwashing valve, wherein the compressed air sequentially passes through a fifth pipeline, a first water producing port of the precise filtering module, a concentrated water port of the precise filtering module, a third pipeline and the exhaust valve to carry out gas backwashing;

s15, opening the emptying valve and the air backwashing valve, closing other valves, introducing compressed air through a compressed air inlet of the air backwashing valve, and emptying the cleaning wastewater in the precise filtering module by the compressed air sequentially through a fifth pipeline, a first water producing port of the precise filtering module, a water inlet of the precise filtering module, a first pipeline and the emptying valve;

s16, steps S13-S15 can be carried out alternately one or more times according to actual requirements;

and S17, automatically returning to the intelligent filtering mode after the intelligent cleaning mode is completed.

Technical Field

The invention relates to the technical field of filtering devices, in particular to an intelligent filtering system for circuit board electroplating solution without replacing a filter element.

Background

With the rapid development of electronic technology, printed circuit boards are widely used in various fields, almost all electronic devices include corresponding printed circuit boards, the printed circuit boards are developed from single-layer boards to double-sided boards, multi-layer boards and flexible boards, and are continuously developed towards high precision, high density and high reliability, and the development trend of the production and manufacturing technology of the printed circuit boards in the future is towards high density, high precision, fine aperture, fine lead, small pitch, high reliability, multilayering, high-speed transmission, light weight and thin type in performance. Electroplating is an important process in the manufacturing process of the PCB, the electroplating process is often carried out under the condition that the process and operation are controlled to be normal, the plated product is not satisfactory, and bad products such as burrs, pocks and the like are often generated, which relates to the use of a large amount of chemical liquid medicine, a large amount of impurities and pollution particles are brought in the process that the PCB moves to and from each liquid medicine tank, and if the impurities and the pollution particles in the liquid medicine are removed without filtration treatment in the long term, the quality and the appearance of the PCB product can be seriously influenced.

The traditional electroplating solution filter has some defects, most filters on the market are manually operated, the structural principle is simple, the operation is troublesome, and more labor cost is consumed; after the existing filter element is used for a period of time, the quality requirement cannot be met, the filter element needs to be detached by a person for cleaning or replaced again, the labor cost is increased, electroplating solution with high value is discharged along with waste liquid when the filter element is cleaned and replaced, electroplating solution and a water source are wasted, waste water is generated, the installation of a subsequent filter element depends on the technology and work responsibility of workers, the filter element is easy to be unsealed, tank liquor cannot be effectively filtered, and the filtering effect is difficult to guarantee. Therefore, the development of an intelligent filtering control method capable of solving the above problems is a problem to be solved in the field today.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the intelligent filter system for the circuit board electroplating solution without replacing the filter element, which realizes intelligent high-precision full-automatic operation filtration and automatic real-time cleaning, ensures real-time effective cleaning of the filter, ensures the filtration effect, saves the replacement cost of the filter element, avoids the loss and waste of the residual electroplating solution in the filter and reduces the production cost of enterprises.

In order to achieve the purpose, the invention is realized by the following technical scheme:

the utility model provides a circuit board plating solution intelligence filtration system of filter core exempts from to trade, includes intelligent control panel, plating solution medicine groove, filter pump and multiunit secondary filter module, the plating solution medicine groove is provided with inlet and liquid outlet, the liquid outlet of plating solution medicine groove is connected with the filter pump through the pipeline, the filter pump is connected with the water intaking valve through the pipeline, the water intaking valve is connected with the secondary filter module through the pipeline, be connected with first pipeline, third pipeline, fourth pipeline and fifth pipeline on the secondary filter module, fourth pipeline and fifth pipeline all are linked together with the second pipeline, the second pipeline links to each other with the inlet of plating solution medicine groove and is provided with the electricity and gets rid of the TOC device on the second pipeline, first pipeline is linked together with the third pipeline.

Preferably, the intelligent control panel is connected with the PLC controller and used for carrying out program control on the intelligent filtering system, and the program control comprises an intelligent filtering mode and a cleaning program.

Preferably, the lower end of the precise filtering module is provided with a water inlet, the upper end of the precise filtering module is provided with a dense water port, and the upper side and the lower side of the precise filtering module are provided with a first water producing port and a second water producing port.

Preferably, the first water producing port is connected with a fifth pipeline, the second water producing port is connected with a second pipeline, the concentrated water port is connected with a third pipeline, and the water inlet is connected with the first pipeline.

Preferably, a filtering pressure detector is arranged at a position, close to the precise filtering module, of the first pipeline, and an exhaust valve is further arranged on the first pipeline; an exhaust valve is also arranged on the third pipeline; a second water producing valve is also arranged on the fourth pipeline; and the fifth pipeline is also provided with a pure water inlet valve, a gas backwashing valve and a first water production valve.

Preferably, the water inlet valve, the pure water inlet valve, the gas backwashing valve, the first water producing valve, the second water producing valve, the exhaust valve and the emptying valve are electrically connected with the PLC, so that the switching between an intelligent filtering mode and an automatic cleaning mode is realized.

Preferably, the pure water inlet valve is provided with a pure water inlet, and the gas backwashing valve is provided with a compressed air inlet.

Preferably, the intelligent cleaning system comprises two working modes, wherein the working modes are divided into an intelligent filtering mode and an intelligent cleaning mode.

Preferably, the smart filtering mode comprises the following steps:

s1, opening the water inlet valve and the first water producing valve and closing other valves;

s2, opening the filter pump, and enabling the electroplating solution to enter the precise filtering module from the electroplating solution tank through the filter pump, the water inlet valve and the water inlet of the precise filtering module in sequence;

s3, after filtering in the precise filtering module, enabling the filtrate to flow out of a first water producing port of the precise filtering module, and enabling the filtrate to flow back to the electroplating liquid medicine tank through a second pipeline and an electric removal TOC device arranged on the second pipeline.

Preferably, the intelligent washing mode comprises the following steps:

s11, when the filtering pressure detector reaches a set value or a set time, the intelligent cleaning mode is started, the intelligent filtering mode stops running, and the intelligent filtering system automatically enters a backflushing cleaning function;

s12, opening a second water production valve and a gas backwashing valve, closing other valves, connecting compressed air through a compressed air inlet of the gas backwashing valve, and pressing the electroplating solution in the precise filtering module back to the electroplating solution tank by the compressed air sequentially passing through a fifth pipeline, a concentrated water inlet of the precise filtering module, a fourth pipeline, a second water production valve, a second pipeline and an electric TOC removal device, so that waste caused by loss of the residual electroplating solution along with cleaning is avoided;

s13, opening the exhaust valve and the pure water inlet valve, closing other valves, and introducing pure water through the pure water inlet of the pure water inlet valve, wherein the pure water sequentially passes through the fifth pipeline, the first water producing port of the precise filtering module, the concentrated water port of the precise filtering module, the 3 rd pipeline and the exhaust valve to be washed;

s14, opening an exhaust valve and a gas backwashing valve, closing other valves, and introducing compressed air through a compressed air inlet of the gas backwashing valve, wherein the compressed air sequentially passes through a fifth pipeline, a first water producing port of the precise filtering module, a concentrated water port of the precise filtering module, a third pipeline and the exhaust valve to carry out gas backwashing;

s15, opening the emptying valve and the air backwashing valve, closing other valves, introducing compressed air through a compressed air inlet of the air backwashing valve, and emptying the cleaning wastewater in the precise filtering module by the compressed air sequentially through a fifth pipeline, a first water producing port of the precise filtering module, a water inlet of the precise filtering module, a first pipeline and the emptying valve;

s16, steps S13-S15 can be carried out alternately one or more times according to actual requirements;

and S17, automatically returning to the intelligent filtering mode after the intelligent cleaning mode is completed.

The invention has the beneficial effects that:

1. the circuit board electroplating solution intelligent filtering system without replacing the filter element realizes the functions of intelligent high-precision full-automatic operation filtering and automatic real-time cleaning, ensures real-time effective cleaning of the filter, ensures the filtering effect, avoids residual electroplating solution in the filter from running and wasting, reduces the production cost of enterprises, innovatively integrates a device for removing TOC (total organic carbon) on an intelligent filter, removes TOC while filtering, effectively prolongs the interval time of electroplating solution carbon treatment, and greatly saves the production cost of enterprises.

2. The invention has the advantages of reducing the cost of filter-free consumables, avoiding potential personal injury when replacing the filter element, saving water consumption, reducing solid waste, adopting high-precision filter membrane, having automatic back washing function, and effectively ensuring the filtering efficiency and the cleaning effect.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

FIG. 2 is a schematic diagram of the flow of filtrate in the smart filtration mode of the present invention;

FIG. 3a is a schematic diagram of the flow of plating solution in the plating solution press-back step in the back flush functional mode of the present invention;

FIG. 3b is a schematic diagram showing the flow of pure water in the water washing step in the back flush functional mode according to the present invention;

FIG. 3c is a schematic view of the compressed air flow in the air backwash step in the backwash function mode of the present invention;

FIG. 3d is a schematic flow diagram of wastewater from the evacuation step in the back flush functional mode of the present invention.

In the figure: 1. an electroplating liquid medicine tank; 2. a filter pump; 3. a precision filtration module; 4. a filtration pressure detector; 5. an electrical TOC removal device; 10. a water inlet valve; 11. a pure water inlet valve; 12. a gas backwash valve; 13. a first water producing valve; 14. a second water producing valve; 15. an exhaust valve; 16. an evacuation valve; 20. a pure water inlet; 21. a compressed air inlet; 22. a discharge port; 31. a first water producing port; 32. a second water producing port; 33. a dense water port; 34. a water inlet; 101. a first conduit; 102. a second conduit; 103. a third pipeline; 104. a fourth conduit; 105. and a fifth pipeline.

Detailed Description

The invention will be further described with reference to the accompanying drawings and the detailed description below:

as shown in fig. 1, an intelligent filter system for circuit board electroplating solution without replacing filter elements comprises an intelligent control panel, an electroplating solution tank 1, a filter pump 2 and a plurality of groups of precise filtering modules 3, wherein the electroplating solution tank 1 is provided with a liquid inlet and a liquid outlet, the liquid outlet of the electroplating solution tank 1 is connected with the filter pump 2 through a pipeline, the filter pump 2 is connected with a water inlet valve 10 through a pipeline, the water inlet valve 10 is connected with the precise filtering modules 3 through a pipeline, the precise filtering modules 3 are connected with a first pipeline 101, a third pipeline 103, a fourth pipeline 104 and a fifth pipeline 105, the fourth pipeline 104 and the fifth pipeline 105 are both communicated with a second pipeline 102, the second pipeline 102 is connected with the liquid inlet of the electroplating solution tank 1 and provided with an electric TOC removing device 5 on the second pipeline 102, and the first pipeline 101 is communicated with the third pipeline 103. The lower end of the fine filtering module 3 is provided with a water inlet 34, the upper end of the fine filtering module is provided with a dense water port 33, the upper side and the lower side of the fine filtering module are provided with a first water producing port 31 and a second water producing port 32, the first water producing port 31 is connected with a fifth pipeline 105, the second water producing port 32 is connected with a second pipeline 102, the dense water port 33 is connected with a third pipeline 103, and the water inlet 34 is connected with a first pipeline 101. A filtering pressure detector 4 is arranged at the position, close to the precise filtering module 3, of the first pipeline 101, and an exhaust valve 16 is further arranged on the first pipeline 101; the third pipeline 103 is also provided with an exhaust valve 15; the fourth pipeline 104 is also provided with a second water producing valve 14; the fifth pipeline 105 is also provided with a pure water inlet valve 11, an air backwashing valve 12 and a first water production valve 13, the pure water inlet valve 11 is provided with a pure water inlet 20, and the air backwashing valve 12 is provided with a compressed air inlet 21.

The water inlet valve 10, the pure water inlet valve 11, the gas backwashing valve 12, the first water production valve 13, the second water production valve 14, the exhaust valve 15 and the exhaust valve 16 are electrically connected with the PLC, and the electrical control of the electronic valves is realized through PLC programming so as to realize the switching of an intelligent filtering mode and an intelligent cleaning mode; the intelligent control panel is provided with manually controlled on-off switches of various valves, is electrically connected with the input end of the PLC, and is used for manually carrying out program control on the intelligent filtering system; the program control comprises an intelligent filtering mode, a cleaning program and the like.