CN212163858U

CN212163858U - Circuit board immersion gold device

Info

Publication number: CN212163858U
Application number: CN202021183365.XU
Authority: CN
Inventors: 王其红
Original assignee: Xinfeng Hongchuang Synthetic Electronics Co ltd
Current assignee: Xinfeng Hongchuang Synthetic Electronics Co ltd
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2020-12-15
Anticipated expiration: 2030-06-23

Abstract

The invention relates to a circuit board gold-plating device, which comprises a gold-plating tank with a discharging pipe at the bottom, wherein T-shaped plates are arranged on two corresponding inner side walls of the lower half part of the gold-plating tank, protective nets are arranged at the top of the T-shaped plates, supporting seats are correspondingly arranged on two inner side walls of the gold-plating tank between two groups of protective nets, a liquid injection pipe and a flushing pipe are respectively arranged in an upper cavity and a lower cavity formed between the T-shaped plates and the corresponding side walls of the gold-plating tank, liquid outlet holes are respectively arranged on the side walls of the liquid injection pipe and the flushing pipe, a liquid inlet pipe I connected with the liquid injection pipe and a liquid inlet pipe II connected with the flushing pipe are arranged on the outer side of the gold-plating tank, a clarification tank is also arranged at the bottom of the gold-plating tank, a plurality of groups of filter screens with different apertures are vertically arranged in the clarification tank, one side of the gold, wherein the connecting pipe II is provided with a pump. The invention has simple structure and convenient use.

Description

Circuit board immersion gold device

Technical Field

The invention relates to the technical field of circuit board processing, in particular to a circuit board gold immersion device.

Background

The gold immersion process is a plating layer generated by chemical oxidation reduction, is one of chemical nickel gold layer deposition methods, can achieve a thicker gold layer, cannot meet the requirements of circuit board production by the traditional gold plating method, and well solves the problem that gold plating cannot be solved by the surface gold immersion technology.

However, the traditional circuit board surface gold deposition method is that liquid medicine is directly poured into a gold cylinder, the liquid medicine is directly reused after being not filtered and processed, the liquid medicine can be used repeatedly after being used repeatedly, the purity of the liquid medicine is reduced, the surface gold deposition quality is not high, the surface gold deposition efficiency can be influenced, the liquid medicine in the gold cylinder is directly poured out and inclined after the purity of the liquid medicine is reduced, the liquid medicine with high purity is reloaded, and the whole gold deposition processing process is easy to break. Therefore, the traditional gold immersion process has the problems of poor gold immersion quality, low gold immersion efficiency and insufficient gold immersion treatment, and an effective scheme needs to be provided for solving the problems.

Although a circuit board immersion gold device disclosed in CN209652425U solves the above problems, the following problems exist, such as: 1. the impurities deposited at the bottom of the reaction cylinder are difficult to scour, fall and be discharged only by the scouring force generated by the natural flow of the liquid, so that the impurity discharging efficiency is low; 2. liquid flows into the reaction jar through the feed port in the feeding jar and flows to discharging pipe department for the reaction jar is carrying out the in-process of feeding row material, and liquid can cause impact extrusion to the circuit board on the mount when flowing, thereby influences the security of circuit board.

Disclosure of Invention

The invention aims to provide a circuit board immersion gold device.

The technical problem of the invention is mainly solved by the following technical scheme:

a circuit board gold immersion device comprises a gold immersion tank with a discharging pipe at the bottom, wherein T-shaped plates are arranged on two corresponding inner side walls of the lower half part of the gold immersion tank, the vertical end of each T-shaped plate is fixedly connected with the corresponding inner side wall of the gold immersion tank, a protective net is arranged at the top of each T-shaped plate, a supporting seat is correspondingly arranged on the two inner side walls of the gold immersion tank between two groups of protective nets, a clamping groove for fixing a circuit board is arranged on each supporting seat, a liquid injection pipe and a flushing pipe are respectively arranged in an upper group of cavity and a lower group of cavity formed between the T-shaped plates and the corresponding side walls of the gold immersion tank, liquid outlet holes are respectively arranged on the side walls of the liquid injection pipe and the flushing pipe, a liquid inlet pipe I connected with the liquid injection pipe and a liquid inlet pipe II connected with the flushing pipe are arranged on the outer side of the gold immersion tank, a clarification tank is also, and one side of the clarification tank is connected with the discharge pipe through a connecting pipe I, the other side of the clarification tank is connected with a liquid inlet pipe II through a connecting pipe II, and a pump is arranged on the connecting pipe II.

Preferably, the connecting pipe I and the discharging pipe are both provided with control valves, wherein the control valves on the discharging pipe are positioned below the connecting part between the connecting pipe I and the discharging pipe.

Preferably, the aperture of the filter screen close to the connecting pipe I in any two adjacent groups of filter screens is larger than that of the filter screen close to the connecting pipe II.

Preferably, the bottom of the clarification tank on both sides of the filter screen is provided with a drain pipe.

Preferably, the bottom wall of the gold immersion pool is of a V-shaped structure.

Preferably, the top end of the support seat is lower than the level of the top end of the immersion gold pool.

The invention has the beneficial effects that:

1. according to the invention, high-purity liquid medicine is introduced into the liquid injection pipe through the liquid inlet pipe I and is discharged from the liquid outlet hole, so that the purity of the liquid medicine in the gold immersion tank is improved, and meanwhile, the liquid level can be prevented from falling to influence the processing work of a circuit board.

2. In the invention, the pump works to pump the liquid filtered in the clarifying tank into the liquid inlet pipe II through the connecting pipe II and flow into the flushing pipe to be sprayed out downwards through the liquid outlet hole, and in the process, the T-shaped plate can prevent the sprayed liquid from being sprayed out upwards or horizontally and contacting with a circuit board to extrude the circuit board, so that the sprayed liquid is sprayed out downwards and flushes impurities deposited at the bottom of the gold precipitation tank to be flushed down and flows to the discharging pipe along the inclined plane at the bottom of the gold precipitation tank to be discharged, thereby achieving the purpose of clearing the deposited impurities at the bottom of the gold precipitation tank.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention.

In the figure: 1. the device comprises a gold precipitation tank, 2, T-shaped plates, 3, a protective screen, 4, a supporting seat, 5, a clamping groove, 6, a liquid injection pipe, 7, a flushing pipe, 8, a liquid outlet hole, 9, liquid inlet pipes I and 10, liquid inlet pipes II and 11, a clarification tank, 12, a filter screen, 13, a discharging pipe, 14, connecting pipes I and 15, connecting pipes II and 16, a pump, 17, a control valve, 18 and a sewage discharge pipe.

Detailed Description

The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings 1-2.

The utility model provides a heavy golden device of circuit board, is provided with heavy golden pond 1 of discharging pipe 13 including the bottom, and this 1 diapire in heavy golden pond is the V-arrangement structure, all be provided with T template 2 on two inside walls about heavy golden pond 1 lower half, wherein the vertical end of T template 2 and the inside wall fixed connection that heavy golden pond 1 corresponds, and both ends and heavy golden pond 1 preceding back both sides wall fixed connection around T template 2 to be provided with protection network 3 at T template 2 top, 3 bottoms of protection network and T template 2 top fixed connection, and both ends and heavy golden pond 1 front and back inside wall fixed connection around it.

Wherein, the supporting seats 4 are correspondingly arranged on the two inner side walls of the gold immersion pool 1 between the two groups of protective nets 3, the supporting seats 4 are provided with clamping grooves 5 for fixing the circuit board, the front end and the rear end of the circuit board are clamped by the clamping grooves 5 to prevent the circuit board from moving, and the circuit board is suspended in the gold immersion pool 1 for processing.

And still be provided with the notes liquid pipe 6 that is located the top and be located below washpipe 7 in the upper and lower two sets of cavities that constitute between T template 2 and heavy gold pond 1 correspond the lateral wall respectively, wherein all be provided with liquid outlet 8 on annotating liquid pipe 6 and the washpipe 7 lateral wall, and heavy gold pond 1 outside is provided with the feed liquor pipe I9 of being connected with notes liquid pipe 6 and the feed liquor pipe II10 of being connected with washpipe 7, heavy gold pond 1 bottom still is provided with clarification tank 11, wherein vertically is provided with the filter screen 12 that the multiunit aperture differs in clarification tank 11, and right side filter screen 12 aperture is greater than left side filter screen 12 aperture in this embodiment.

Meanwhile, the right side of the clarification tank 11 is connected with the discharge pipe 13 through a connecting pipe I14, and the left side of the clarification tank 11 is connected with the liquid inlet pipe II10 through a connecting pipe II15, wherein a pump 16 is arranged on the connecting pipe II 15. In this embodiment, the connection pipe I14 and the discharge pipe 13 are both provided with a control valve 17, wherein the control valve 17 on the discharge pipe 13 is located below the connection between the connection pipe I14 and the discharge pipe 13.

Preferably, the bottom of the clarification tank 11 at both sides of the filter screen 12 is provided with a sewage draining pipe 18 for draining the liquid in the clarification tank 11 when the clarification tank 11 needs to be cleaned.

When the device is used, if the purity of the liquid medicine in the gold precipitation tank 1 is reduced or more sediments are deposited at the bottom of the gold precipitation tank 1, the control valve 17 on the connecting pipe I14 is opened, so that the liquid medicine at the bottom of the gold precipitation tank 1 flows into the clarification tank 11 through the discharge pipe 13 and the connecting pipe I14, at the moment, the discharged liquid medicine can bring a small amount of floating impurities at the bottom of the gold precipitation tank 1 into the clarification tank 11, and the high-purity liquid medicine can be introduced into the liquid injection pipe 6 through the liquid inlet pipe I9 and discharged from the liquid outlet 8, so that the purity of the liquid medicine in the gold precipitation tank 1 is improved, the liquid level can be prevented from being reduced and influencing the processing work of a circuit board, when the high-purity liquid medicine flows, the high-purity liquid medicine can be shielded by the vertical end of the T-shaped plate 2 to be bent upwards and contacted with the circuit board through the aperture of the protective net 3 and can not be directly sprayed or flowed towards the circuit board to cause impact force, and, the protective net 3 can prevent impurities generated in the processing process of the circuit board from flowing to the position right above the liquid injection pipe 6 to sink and block the liquid outlet hole 8.

After the liquid discharged from the gold precipitation tank 1 fills the clarification tank 11, the control valve 17 on the connecting pipe I14 is closed, the control valve 17 on the discharging pipe 13 is opened to discharge the liquid containing impurities at the bottom in the gold precipitation tank 1 for recycling, the liquid flowing into the clarification tank 11 is filtered step by the filter screens 12 with different sizes and then flows to the connecting pipe II15, at the moment, the pump 16 works to pump the filtered liquid into the liquid inlet pipe II10 through the connecting pipe II15 and flows into the washing pipe 7 to be sprayed downwards from the liquid outlet hole 8, in the process, the T-shaped plate 2 can prevent the sprayed liquid from being sprayed upwards or horizontally and contacting the circuit board to press the circuit board, but the sprayed liquid is sprayed downwards and washes away impurities deposited at the bottom in the gold immersion tank 1 so as to wash down the impurities and discharge the impurities along the inclined plane at the bottom of the gold immersion tank 1 towards the discharge pipe 13, thereby achieving the purpose of cleaning the deposited impurities at the bottom of the gold immersion tank 1.

In order to last to erode heavy golden pond 1 bottom at above-mentioned in-process, can open the control valve 17 on the connecting pipe I14 a bit when so erodeing for there is liquid to get into and filters in the depositing reservoir 11 and flow into and carry out impurity and erode work in the heavy golden pond 1 all the time, this then can play liquid recycle's purpose, two then erode liquid and can not further reduce the concentration of liquid medicine in the heavy golden pond 1, finally realize playing the purpose that gets rid of impurity and promote the concentration of liquid medicine under the condition of not stopping production.

The present invention has been described in detail, but the above description is only a preferred embodiment of the present invention, and is not to be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.

Claims

1. A circuit board gold immersion device comprises a gold immersion tank with a discharging pipe at the bottom, and is characterized in that T-shaped plates are arranged on two corresponding inner side walls of the lower half part of the gold immersion tank, wherein the vertical ends of the T-shaped plates are fixedly connected with the inner side walls corresponding to the gold immersion tank, protective nets are arranged at the tops of the T-shaped plates, supporting seats are correspondingly arranged on the two inner side walls of the gold immersion tank between two groups of protective nets, clamping grooves for fixing a circuit board are arranged on the supporting seats, liquid injection pipes positioned above and flushing pipes positioned below are respectively arranged in upper and lower groups of cavities formed between the T-shaped plates and the corresponding side walls of the gold immersion tank, liquid outlet holes are respectively arranged on the side walls of the liquid injection pipes and the flushing pipes, a liquid inlet pipe I connected with the liquid injection pipes and a liquid inlet pipe II connected with the flushing pipes are arranged on the outer side of the gold immersion tank, wherein the vertical filter screen that differs in the clarification tank that is provided with multiunit aperture, and clarification tank one side is connected with the discharging pipe through connecting pipe I, the clarification tank opposite side is connected with feed liquor pipe II through connecting pipe II, wherein is provided with the pump on the connecting pipe II.

2. The circuit board immersion gold device of claim 1, wherein the connection pipe I and the tapping pipe are provided with control valves, and the control valve on the tapping pipe is located below the connection point between the connection pipe I and the tapping pipe.

3. The circuit board immersion gold device of claim 1, wherein the pore size of the filter screen in any two adjacent sets of filter screens near the connecting pipe I is larger than the pore size of the filter screen near the connecting pipe II.

4. The circuit board immersion gold device as claimed in claim 1, wherein the bottom of the clarification tank on both sides of the filter screen is provided with a drain pipe.

5. The circuit board immersion gold device of claim 1, wherein the immersion gold pool bottom wall is a V-shaped structure.

6. The circuit board immersion gold device of claim 1, wherein the top end of the supporting seat is lower than the top end level of the immersion gold tank.