CN212680241U - Circuit board etching liquid filtering device - Google Patents
Circuit board etching liquid filtering device Download PDFInfo
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- CN212680241U CN212680241U CN202021466877.7U CN202021466877U CN212680241U CN 212680241 U CN212680241 U CN 212680241U CN 202021466877 U CN202021466877 U CN 202021466877U CN 212680241 U CN212680241 U CN 212680241U
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Abstract
A circuit board etching liquid filtering device, comprising: the device comprises a filtering tank body, a filtering mechanism and a cleaning mechanism; the filtering mechanism includes: the filter tank comprises a first filter screen and a second filter screen, wherein the first filter screen and the second filter screen are arranged in a filter tank body at intervals, and the first filter screen and the second filter screen divide the interior of the filter tank body into a first cavity, a second cavity and a third cavity in sequence; a liquid inlet, a liquid outlet, a pipeline through hole and a cleaning port are formed in the filtering tank body, the liquid inlet is communicated with the third cavity, the liquid outlet is communicated with the first cavity, the cleaning port is communicated with the third cavity, and the pipeline through hole is communicated with the first cavity; the wiper mechanism includes: the liquid storage container is arranged on the filtering tank body, one end of the injection pipe is connected with the liquid storage container, the other end of the injection pipe is inserted into the first cavity through the pipeline through hole, the other end of the injection pipe is provided with a plurality of spray holes, the circuit board etching liquid filtering device cannot accumulate excessive filter residues at the position of the filtering mechanism, the filtering efficiency is high, and the cleaning is convenient.
Description
Technical Field
The utility model relates to an etching solution production technical field, in particular to circuit board etching solution filter equipment.
Background
A PCB (Printed circuit boards), also called a Printed circuit board, is an important electronic component, a support for electronic components, and a carrier for electrical connection of electronic components, and during the manufacturing process of the PCB, an etching solution is used to erode a metal layer on a substrate, so as to scribe a desired circuit on the substrate.
The etching solution widely used at present comprises acidic copper chloride, alkaline copper chloride, ferric chloride, ammonium persulfate and the like, the etching solution is carved by the characteristics of erosion materials, and in the production and preparation process of the etching solution, various indexes of raw materials of the copper etching solution need to be controlled, so the raw materials are generally required to be treated, the raw materials are added with a medicament for reaction, and then filtration is carried out after the reaction to obtain filtrate, so the treated etching solution is obtained, but when the etching solution is filtered by the existing filtration device, impurities and the like in the etching solution are generally intercepted on a filter screen, so continuous filtration is carried out, the intercepted impurities are more and more, filter holes of the filter screen are smaller and smaller, the filtration speed is slower and more, the etching solution still continuously enters to cause the blockage of the filter holes of the filter screen, so that the filtering efficiency of the etching solution is low, a large amount of time is required to be consumed during the cleaning, and the production is, affecting the production efficiency of the etching solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem how be convenient for clear up the filter screen, improve its filtration efficiency, consequently, provide a circuit board etching liquid filter equipment.
The utility model provides an above-mentioned technical problem's technical scheme as follows: a circuit board etching liquid filtering device, comprising: the device comprises a filtering tank body, a filtering mechanism and a cleaning mechanism;
the filter mechanism includes: the filter tank comprises a filter tank body, a first filter screen and a second filter screen, wherein the first filter screen and the second filter screen are arranged in the filter tank body at intervals, and the first filter screen and the second filter screen divide the interior of the filter tank body into a first cavity, a second cavity and a third cavity in sequence;
a liquid inlet, a liquid outlet, a pipeline through hole and a cleaning hole are formed in the filtering tank body, the liquid inlet is communicated with the third cavity, the liquid outlet is communicated with the first cavity, the cleaning hole is communicated with the third cavity, and the pipeline through hole is communicated with the first cavity;
the cleaning mechanism includes: the liquid storage container is arranged on the filtering tank body, one end of the injection pipe is connected with the liquid storage container, the other end of the injection pipe is inserted into the first cavity through the pipeline through hole, and a plurality of spray holes are formed in the other end of the injection pipe.
In one embodiment, the cleaning mechanism further includes a first delivery pipe, a power pump, and a second delivery pipe, the reservoir is communicated with an input end of the power pump through the first delivery pipe, and an output end of the power pump is communicated with the injection pipe through the second delivery pipe.
In one embodiment, the filtering tank body is further provided with a first pipeline, the first pipeline is communicated with the liquid inlet, and the first pipeline is provided with a booster pump which is used for providing power for conveying the circuit board etching liquid.
In one embodiment, the second filter screen is conical, and a plurality of second filter holes are uniformly formed in the second filter screen.
In one embodiment, the first filter screen is conical, a plurality of first filter holes are uniformly formed in the first filter screen, and the aperture of each first filter hole is smaller than that of each second filter hole.
In one embodiment, the end of the first filter screen and the end of the second filter screen with larger width are connected with the inner wall of the filter tank body, and the end of the first filter screen and the end of the second filter screen with smaller width are both positioned below the end with larger width.
In one embodiment, the volume ratio of the first chamber, the second chamber, and the third chamber is 1:2: 3.
In one embodiment, the volume ratio of the first chamber, the second chamber, and the third chamber is 1:1: 3.
The utility model has the advantages that: the utility model provides a circuit board etching liquid filtering device, when being used for filtering circuit board etching liquid, because be provided with in the filter tank body first filter screen and the second filter screen, just the inlet sets up the bottom of the filter tank body and the liquid outlet sets up the top of the filter tank body, make circuit board etching liquid flow from bottom to top and carry out the reverse filtration, make the filter residue remain in the bottom of the filter tank body, thereby the resistance that the filter mechanism bore is little, can not block up the filter mechanism, when wasing circuit board etching liquid filtering device after the filtration is accomplished, clear away the filter residue that remains in the bottom of the filter tank body through the clearance mouth, then spray the washing liquid of reservoir to on the first filter screen through the injection pipe, the washing liquid flows through first filter screen and the second filter screen in proper order, and finally, the circuit board etching liquid filtering device is discharged from the cleaning port to clean the circuit board etching liquid filtering device, so that excessive filter residues cannot be accumulated at the filtering mechanism, the filtering efficiency is high, the cleaning is convenient, and the service life is long.
Drawings
FIG. 1 is a schematic cross-sectional view of an exemplary apparatus for filtering a circuit board etching solution;
FIG. 2 is a schematic cross-sectional view of an exemplary ejector tube;
FIG. 3 is a schematic cross-sectional view of a device for filtering a circuit board etching solution according to an embodiment.
In the attached drawings, 100, a filtering tank body; 110. a liquid inlet; 111. a first conduit; 112. a booster pump; 120. a liquid outlet; 130. cleaning the opening; 210. a first filter screen; 220. a second filter screen; 310. a reservoir container; 315. a first delivery pipe; 320. a power pump; 325. a second delivery pipe; 330. an injection pipe; 335. spraying a hole; 410. a first chamber; 420. a second chamber; 430. a third chamber.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The following will combine the drawings of the embodiments of the present invention to further describe the technical solution of the present invention, and the present invention is not limited to the following specific embodiments.
It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience of description and simplicity of description, but does not indicate or imply that the equipment or components referred to must have specific orientations, be constructed in specific orientations, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art will understand the specific meanings of the terms according to specific situations.
In one embodiment, as shown in FIG. 1, a device for filtering a circuit board etching solution comprises: a filtering tank body 100, a filtering mechanism and a cleaning mechanism; the filter mechanism includes: the first filter screen 210 and the second filter screen 220 are sequentially arranged in the filter tank body 100 from top to bottom, and the first filter screen 210 and the second filter screen 220 divide the interior of the filter tank body 100 into a first chamber 410, a second chamber 420 and a third chamber 430 from top to bottom; a liquid inlet 110, a liquid outlet 120 and a cleaning port 130 are formed in the filtering tank 100, the liquid inlet 110 is communicated with the third chamber 430, the liquid outlet 120 is communicated with the first chamber 410, and the cleaning port 130 is communicated with the third chamber 430; the cleaning mechanism includes: the liquid storage container 310 is disposed on the filtering tank 100, a pipeline through hole is formed in the filtering tank 100, one end of the injection pipe 330 is connected to the liquid storage container 310, the other end of the injection pipe 330 is communicated with the first chamber 410 through the pipeline through hole, one end of the injection pipe 330, which is far away from the liquid storage container 310, is disposed in a closed manner, and a plurality of injection holes 335 are formed in a side wall of the injection pipe 330, which is far away from one end of the liquid storage container 310.
In this embodiment, the shape of the filtering tank 100 is a cylinder, the filtering tank 100 has a containing cavity, the containing cavity is used for containing the circuit board etching liquid to be filtered, the bottom of the filtering tank 100 is provided with the liquid inlet 110, the circuit board etching liquid to be filtered is conveyed into the filtering tank 100 through the liquid inlet 110 for filtering, the first filtering screen 210 and the second filtering screen 220 are sequentially arranged in the filtering tank 100 from top to bottom, the outer edge of the first filtering screen 210 and the outer edge of the second filtering screen 220 are respectively connected with the inner side surface of the filtering tank 100, correspondingly, the shapes of the first filtering screen 210 and the second filtering screen 220 are both the same as the shape of the containing cavity, for example, the shape of the containing cavity is a circle, and the shapes of the first filtering screen 210 and the second filtering screen 220 are both a circle, and the width of the first filter 210 and the second filter 220 is equal to the width of the cross section of the accommodating cavity, so that the accommodating cavity is divided into three parts by the first filter 210 and the second filter 220, that is, the accommodating cavity is divided into the first cavity 410, the second cavity 420 and the third cavity 430 from top to bottom in sequence.
In this embodiment, the circuit board etching solution to be filtered is introduced into the third chamber 430 through the liquid inlet 110, the second filter screen 220 is uniformly provided with a plurality of second filter holes, solid particles in the circuit board etching solution with a particle size smaller than the pore size of the second filter holes are conveyed into the second chamber 420 through the filtration of the second filter screen 220, the solid particles with a particle size larger than the pore size of the second filter holes are retained in the third chamber 430, the first filter screen 210 is uniformly provided with a plurality of first filter holes, the pore size of the second filter holes is larger than the pore size of the first filter holes, that is, the pore size of the first filter holes is smaller than the pore size of the second filter holes, and through such arrangement, the circuit board etching solution can be further filtered, so that the solid particles in the circuit board etching solution are retained in the second chamber 420, so that the purity of the circuit board etching liquid filtered into the first chamber 410 meets the requirement of the circuit board etching liquid purity, and the circuit board etching liquid is discharged out of the first chamber 410 through the liquid outlet 120. It should be understood that the size of the first filtering hole and the size of the second filtering hole should be set according to actual production needs, so that the purity of the filtered circuit board etching liquid meets the requirement of the circuit board etching liquid purity, and in this embodiment, the size is not particularly limited.
As shown in fig. 2, in the present embodiment, the cleaning mechanism includes: a liquid storage container 310 and an injection pipe 330, wherein the liquid storage container 310 is disposed on the filter tank 100, specifically, on the top of the filter tank 100, the liquid storage container 310 is used for storing a cleaning liquid, one end of the injection pipe 330 is connected to the liquid storage container 310, the other end of the injection pipe 330 is communicated with the first chamber 410 through the pipe through hole, the cleaning mechanism further includes a first delivery pipe 315, a power pump 320 and a second delivery pipe 325, the liquid storage container 310 is communicated with the input end of the power pump 320 through the first delivery pipe 315, the output end of the power pump 320 is communicated with the injection pipe 330 through the second delivery pipe 325, one end of the injection pipe 330 far from the liquid storage container 310 is closed, or one end of the injection pipe 330 far from the second delivery pipe 325 is closed, and a plurality of injection holes 335 are opened on the side of the injection pipe 330 far from the end of the second delivery pipe 325, the spray holes 335 penetrate from the inner surface to the outer surface of the spray pipe 330, so that the cleaning solution in the reservoir 310 can be sprayed into the filter tank 100, the spray holes 335 are uniformly distributed on the circumferential surface of the spray pipe 330 and are arranged along a radial direction, and the hole diameters of the spray holes 335 are equal, so that the spray holes 335 can uniformly spray the cleaning solution, and the cleaning solution can be uniformly sprayed in all directions.
Illustratively, the utility model provides a circuit board etching liquid filter equipment for when filtering circuit board etching liquid, because be provided with in the filtration jar body 100 first filter screen 210 with the second filter screen 220, just inlet 110 sets up the bottom of filtration jar body 100 and the liquid outlet 120 sets up the top of filtration jar body 100 for circuit board etching liquid flows from bottom to top carries out reverse filtration, and because the liquid flow direction is that inlet 110 of bottom flows to the liquid outlet 120 of top, makes the filter residue sink under the action of gravity, is kept apart by first filter screen and second filter screen more easily, makes the filter residue remain in the bottom of filtration jar body 100, thereby the resistance that the filter mechanism bore is little, can not block up the filter mechanism, when wasing circuit board etching liquid filter equipment after the filtration completion, through clearance mouth 130 will be in the filter residue of filtration jar body 100 bottom is clear away, then the cleaning liquid in the liquid storage container 310 is conveyed to the injection pipe 330 by the power pump 320 and is injected onto the first filter screen 210, the cleaning liquid flows through the first filter screen 210 and the second filter screen 220 in sequence, and is finally discharged from the cleaning port 130, so that the cleaning of the circuit board etching liquid filtering device is completed, and the circuit board etching liquid filtering device is high in filtering efficiency, convenient to clean and long in service life, and excessive filter residues cannot be accumulated at a filtering mechanism.
In order to better convey the circuit board etching liquid to be filtered from the liquid inlet 110 to the liquid outlet 120 to complete the filtering, in one embodiment, the filtering tank 100 is further provided with a first pipeline 111, the first pipeline 111 is communicated with the liquid inlet 110, the first pipeline 111 is provided with a booster pump 112, the booster pump 112 is used for providing power for conveying the circuit board etching liquid, specifically, the first pipeline 111 is provided with the booster pump 112, so that the circuit board etching liquid to be filtered has enough power to enter the second chamber 420 from the third chamber 430 through the second filter 220, then enter the first chamber 410 from the second chamber 420 through the first filter 210 to complete the filtering, and finally is discharged and collected through the liquid outlet 120, that is, the circuit board etching liquid has enough power to flow from bottom to top for performing the reverse filtering, so that the residue remains at the bottom of the filtering tank body 100.
As shown in fig. 3, in order to better filter the circuit board etching solution, in an embodiment, the second filter 220 has a conical shape, and a plurality of second filtering holes are uniformly formed on the second filter 220. Specifically, the shape of second filter screen 220 is the circular cone shape, has a big one little port, the great one end of width in the second filter screen 220 with the interior wall connection of the filter tank body 100, just the less one end of width in the second filter screen 220 is located the below of the great one end of width, promptly the position of the great one end of width in the second filter screen 220 is close to first filter screen 210, the less one end of width in the second filter screen 220 is kept away from first filter screen 210, through with second filter screen 220 sets to circular cone shape, can increase the filter area of circuit board etching liquid, and etching liquid is by the backward filtration that flows from bottom to top, because general dead weight is big than filtrating, it can down deposit to can make the filter residue remain in the below.
In another implementation, the first filter screen 210 with the great one end of width in the second filter screen 220 with the inner wall of the filter tank body 100 is connected, the first filter screen 210 with the less one end of width in the second filter screen 220 all is located the top of the great one end of width, promptly the position of the great one end of width in the first filter screen 210 is close to the second filter screen 220, the less one end of width in the first filter screen 210 is kept away from the second filter screen 220, the position of the great one end of width in the second filter screen 220 is kept away from the first filter screen 210, the less one end of width in the second filter screen 220 is close to the first filter screen 210.
In order to better clean the filtering mechanism, in one embodiment, the first filter 210 has a conical shape, and a plurality of first filtering holes are uniformly formed on the first filter 210. Specifically, the first filter screen 210 is in a conical shape and has a large port and a small port, the end with a large width in the first filter screen 210 is connected to the inner wall of the filter tank 100, and the end with a small width in the first filter screen 210 is located below the end with a large width, that is, the position of the end with a large width in the first filter screen 210 is far away from the second filter screen 220, the end with a small width in the first filter screen 210 is close to the second filter screen 220, by setting the second filter screen 220 in a conical shape, the cleaning mechanism sprays the cleaning liquid to the end with a large width on the first filter screen 210, the cleaning liquid flows down along a conical inclined plane to complete the cleaning of the first filter holes on the first filter screen 210, and then the cleaning liquid flows down onto the second filter screen 220, and cleaning the second filter hole, and finally flowing into the third chamber 430 to be discharged from the cleaning port 130, where the cleaning liquid may be an acidic cleaning liquid or an alkaline cleaning liquid, and may be selected according to the type of the filter residue, and is not specifically limited herein.
To better filter the circuit board etching solution, in one embodiment, the first chamber 410, the second chamber 420, and the third chamber 430 have a volume ratio of 1:2: 3. Specifically, since the filter residues trapped by the second filter 220 are relatively more, the volume ratio of the first chamber 410, the second chamber 420 and the third chamber 430 may be 1:2:3, that is, the volume of the third chamber 430 is the largest, and in addition, the volume ratio of the first chamber 410, the second chamber 420 and the third chamber 430 may be adjusted according to the amount of the filter residues trapped in the second chamber 420 and the third chamber 430, which is not specifically limited herein, for example, the volume ratio of the first chamber 410, the second chamber 420 and the third chamber 430 may also be 1:1: 3.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. A circuit board etching liquid filtering device is characterized by comprising: the device comprises a filtering tank body, a filtering mechanism and a cleaning mechanism;
the filter mechanism includes: the filter tank comprises a filter tank body, a first filter screen and a second filter screen, wherein the first filter screen and the second filter screen are arranged in the filter tank body at intervals, and the first filter screen and the second filter screen divide the interior of the filter tank body into a first cavity, a second cavity and a third cavity in sequence;
a liquid inlet, a liquid outlet, a pipeline through hole and a cleaning hole are formed in the filtering tank body, the liquid inlet is communicated with the third cavity, the liquid outlet is communicated with the first cavity, the cleaning hole is communicated with the third cavity, and the pipeline through hole is communicated with the first cavity;
the cleaning mechanism includes: the liquid storage container is arranged on the filtering tank body, one end of the injection pipe is connected with the liquid storage container, the other end of the injection pipe is inserted into the first cavity through the pipeline through hole, and a plurality of spray holes are formed in the other end of the injection pipe.
2. The circuit board etching solution filtering device according to claim 1, wherein the cleaning mechanism further comprises a first delivery pipe, a power pump, and a second delivery pipe, wherein the reservoir is in communication with an input end of the power pump through the first delivery pipe, and an output end of the power pump is in communication with the spray pipe through the second delivery pipe.
3. The circuit board etching liquid filtering device according to claim 1, wherein the filtering tank body is further provided with a first pipeline, the first pipeline is communicated with the liquid inlet, and the first pipeline is provided with a booster pump which is used for providing power for conveying the circuit board etching liquid.
4. The apparatus according to claim 1, wherein the second filter has a conical shape, and a plurality of second filter holes are uniformly formed in the second filter.
5. The circuit board etching solution filtering device according to claim 4, wherein the first filter screen is conical, a plurality of first filter holes are uniformly formed in the first filter screen, and the diameter of each first filter hole is smaller than that of each second filter hole.
6. The apparatus according to claim 5, wherein the wider end of the first filter and the second filter is connected to the inner wall of the filter tank, and the narrower end of the first filter and the second filter is located below the wider end.
7. The circuit board etching solution filtering device according to claim 1, wherein the volume ratio of the first chamber, the second chamber and the third chamber is 1:2: 3.
8. The circuit board etching solution filtering device according to claim 1, wherein the volume ratio of the first chamber, the second chamber and the third chamber is 1:1: 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021466877.7U CN212680241U (en) | 2020-07-23 | 2020-07-23 | Circuit board etching liquid filtering device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021466877.7U CN212680241U (en) | 2020-07-23 | 2020-07-23 | Circuit board etching liquid filtering device |
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| CN212680241U true CN212680241U (en) | 2021-03-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113521832A (en) * | 2021-07-23 | 2021-10-22 | 清远市兆成环保包装纸制品有限公司 | A recovery unit for waste paper pulp |
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2020
- 2020-07-23 CN CN202021466877.7U patent/CN212680241U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113521832A (en) * | 2021-07-23 | 2021-10-22 | 清远市兆成环保包装纸制品有限公司 | A recovery unit for waste paper pulp |
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