CN2249484Y - Film-separation technical regenerated etching agent and electrolyzation etching machine without discharged waste liquid - Google Patents
Film-separation technical regenerated etching agent and electrolyzation etching machine without discharged waste liquid Download PDFInfo
- Publication number
- CN2249484Y CN2249484Y CN 95222423 CN95222423U CN2249484Y CN 2249484 Y CN2249484 Y CN 2249484Y CN 95222423 CN95222423 CN 95222423 CN 95222423 U CN95222423 U CN 95222423U CN 2249484 Y CN2249484 Y CN 2249484Y
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- etching
- etching solution
- machine
- etching machine
- regeneration
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Abstract
The utility model relates to an electrical etching machine which regenerates etching solution by utilizing film-separation technology without discharge liquid, and the utility model is composed of the sealing box of an etching machine and the sealing box of an electrolytic regeneration machine, wherein, the lower part of the sealing box of an etching machine is provided with storage grooves respectively used for storing fresh freshen etching solution and used etching solution. The upper part of the sealing box of an etching machine is provided with the sprinkling mechanism of the etching solution and the conveying and supporting mechanism for printed plates; the upper part of an electrolytic regeneration machine is divided into a cathode chamber and an anode chamber with alternate positive electrode and negative electrode by ionic film with permselectivity, wherein, excess univalent copper in the etching solution arranged in the anode chamber is oxygenized into divalent copper in the anode chamber; after the divalent copper enter cathode through the ionic film, electrons are gained on cathode plates, cathode copper is formed, and then, the cathode copper is recycled; at the same time, after the etching solution in the anode chamber comes up to a standard ratio, the etching solution in the anode chamber is regenerated and recycled to use.
Description
The utility model relates to a kind of manufacturing equipment of printed circuit board (PCB), exactly, relates to and a kind ofly utilizes membrane separation technique regeneration etching solution and realize not having the electrical etching machine of discharging of waste liquid.
The design of printed circuit board (PCB) and workmanship will directly influence the reliability and stability of electronic instrument, equipment, even become its key of success.Therefore, the design of printed circuit board (PCB), manufacturing process and equipment are at home and abroad all developing rapidly.Wherein,, all to be etched with and obtain the circuit image, so etch process and equipment are to make requisite important process and equipment in the printed circuit board (PCB) no matter make printed circuit board (PCB) with subtractive process or semi-additive process.Because the quality of etch process quality, directly have influence on the quality of printed circuit board (PCB), so people are seeking, exploring all the technological parameter that improves etching quality always, its subject matter is as follows: (1) along with the etching of the copper on the printed circuit board (PCB), the copper ion Cu in the etching solution
+Can be more and more, etch capabilities is descended gradually and finally lose usefulness.For the etch capabilities of keeping in balance, just must carry out Regeneration Treatment to etching solution by variety of way, make wherein univalent copper ion Cu
+Again be converted into bivalent cupric ion Cu
++, so that can continuously carry out normal etching.The present hydrogen peroxide oxidation method of reproduction that generally adopts, this method can not reclaim the copper that etching is got off in the solution, needs constantly to add regenerated liquid, so can produce a large amount of contained waste liquids.According to measuring and calculating, dew Copper Foil on every printed circuit board raw sheet has 3/4 etchedly to get off to dissolve in the etching solution approximately, be equivalent to the copper that per 1 square metre of printed circuit board (PCB) dissolves in etching solution and reach 200 grams, therefore, how to recycle the copper in the old etching solution, be one and reduce production costs, reduce the important topic of environmental pollution.When (2) making single sided board, adopt,, make the conductor side on the printed circuit board (PCB) form groove, influence the lead precision, occur disadvantages such as broken string easily owing to plate area liquid causes lateral erosion from top spray.Along with increasing of fine wire on the printed circuit board (PCB), how to dwindle and even avoid lateral erosion to become an important topic.(3) a large amount of smog that produce in the etching process are directly to airborne release at present mostly, become an important source of atmospheric pollution.
The purpose of this utility model provides a kind of etching machines that can solve and overcome above-mentioned defective preferably---utilize the electrical etching machine of the nothing discharging waste liquid of membrane separation technique regeneration etching solution.
The utility model is achieved in that box etching machine and electrolytic regeneration machine two parts of being made of PVC sheet material form, wherein the etching machine lower box is separated into two storage tanks that interconnect but breach is offered on dividing plate top independently of one another by dividing plate, stores fresh etching solution and used old etching solution respectively; This casing top is equiped with the spraying mechanism of etching solution and the transmission supporting mechanism of printed board; The old liquid storage tank of etching machine is connected with the sprinkler on electrolytic regeneration machine top by waste drains pump, cooler and pipeline, and the bottom of this electrolytic regeneration box body is the catholyte storage tank; It is characterized in that: the top of electrolytic regeneration box body is electrolysis tank: the ion dividing plate by PVC framework, pressing plate and middle selection permeability ionic membrane thereof constitute is divided into alternate cathode chamber of both positive and negative polarity and anode chamber; Cathode chamber in the middle of being positioned at is connected with the catholyte storage tank of bottom, and both sides, the minus plate upper end level of installing in the middle of it is installed on the tubulose sprinkler, and sprinkler is connected with negative electrode liquid pump, cooler by pipeline with the negative electrode liquid bath; The anode chamber is a seal case, positive plate is close on the dividing plate that is installed in wherein, end distance anode chamber base plate leaves certain interval under the dividing plate, upper end level near positive plate is provided with the tubulose sprinkler, this sprinkler is connected with the old etching solution storage tank of etching machine by pipeline, waste drains pump, cooler, membrane backside tank wall top offers trough type overflow breach, and overfall is connected with the fresh etching solution storage tank of etching machine through pipeline.
The spraying mechanism of above-mentioned etching machine is made up of spray pump, the nozzle that is positioned at the upper and lower side of printed circuit board (PCB) and valve, and wherein valve should be installed on the pipeline that leads to side nozzle on the printed circuit board (PCB).
The transmission supporting mechanism of printed circuit board (PCB) is by motor in the etching machine, travelling gear, balladeur train, be supported on the pedestal in the balladeur train groove, pressing plate, be installed in the pedestal and lay respectively at last transverse axis, time transverse axis of the upper and lower side of printed circuit board (PCB), and be located in the upper and lower transverse axis, formed with its a plurality of upper and lower roller by rotating shaft.
Above-mentioned printed circuit board (PCB) transmits supporting mechanism, also includes a kind of carriage of the CC of being shape, but embedding of two semicircle slotted eyes is clipped between two adjacent last transverse axis on it, and its strip bottom surface, lower end should be tangent with above-mentioned two external diameter edges of going up transverse axis.
Above etching machine and electrolytic regeneration box body, be provided with water-jacket typ condensation exhaust pipe.
On waste drains pump and catholyte delivery side of pump pipeline, be separately installed with shell and tube cooler.
In utility model is a kind of emerging high-tech---membrane separation technique of utilizing grow up in nearly two, 30 years, the printed circuit board fabrication equipment that etching and electrolytic regeneration can be carried out simultaneously, it is constant that this equipment can remain stablizing of each constituent of etching solution in process of production, thereby etching process is remained under the optimal processing parameter to carry out, keep balanced etch capabilities, be specially adapted to the production of large batch of automation flowing water.When this equipment of utilization carries out the single sided board etching,, can avoid side etching phenomenon, accelerate etching speed, the etching and processing of especially suitable fine wire printed circuit board (PCB) at its downside spray etching solution.Utilize the ionic membrane technology to carry out separation regeneration, can not add oxidant, do not discharge waste liquid, can also reclaim the copper that etching is got off; Utilize the water-jacket typ condensing unit again, purify the discharging of smog, can significantly reduce pollution, help environmental protection environment and atmosphere.The utility model reclaims metallic copper and saves additive, can produce good economic benefits.Calculate by 1 kilogram of copper of every etching, traditional etching machine need use additive to be roughly equal to 40 yuan of RMB, uses the utility model regeneration etching solution, reclaims 1 kilogram of copper, needs 4 yuan of the about RMB of the payment electricity charge; The metallic copper that reclaims is worth 30 yuan.So, use the utility model to carry out etch process, 1 kilogram of copper of every etching, comparable legacy equipment is reduced expenses 66 yuans.So the utility model if can utilization and extention, can very fast withdrawal equipment investment, have good economic benefits and social benefit.
Fig. 1 is a general structure schematic diagram of the present utility model.
Fig. 2 is the spraying mechanism of printed circuit board (PCB) in the utility model and front view (2A) and the end view (2B) that drives supporting mechanism.
Fig. 3 is the frame cathode chamber structural representation of the utility model electrolytic regeneration machine.
Fig. 4 is the frame anode cell configuration schematic diagram of the utility model electrolytic regeneration machine.
Fig. 5 is a water jacket condensing exhaust pipe structure schematic diagram in the utility model.
Fig. 6 is a shell and tube cooler structural representation in the utility model.
Referring to Fig. 1, the utility model mainly is made of box etching machine (right side) and electrolytic regeneration machine (left side) two parts that PVC sheet material constitutes, and wherein the etching machine lower box is to be separated into two storage tanks 1,5 that interconnect but breach is offered on dividing plate top independently of one another by dividing plate.Wherein storage tank 1 stores fresh etching solution, and 5 of storage tanks are deposited used old etching solution; This casing top is equiped with the spraying mechanism of etching solution and the transmission supporting mechanism of printed board.Referring to Fig. 2 A and Fig. 2 B, wherein the spraying mechanism of printed circuit board (PCB) is made up of spray pump 2, the nozzle 3 that is positioned at printed panel 4 upper and lower sides and valve 18, and wherein valve 18 should be installed on the pipeline of the nozzle 3 that leads to printed circuit board (PCB) 4 upsides.
The utility model uses the nozzle 3 of its downside to spray etching solution when carrying out etching production single-clad board, and at this moment, valve 18 is closed.At present the etching solution of the etching machine that uses is to spray from the top of printed board, can form " pool effect " and causes lateral erosion, influences the quality of printed circuit board (PCB).For this reason, printed circuit board industry has carried out multiple exploration for many years in etching mode and structure.For example, Israel once used the spray mode of 30 ° of shower inclinations, and Taiwan proposed 45 ° of tiltings sprays, and Japan then adopts vertical 90 ° of modes to spray.The utility model then adopts down spray to single sided board, promptly overturn 180 °, this mode can effectively reduce and avoid lateral erosion because action of gravity can not produce etching solution and remain in printing board surface " pool effect ", and the etching solution exchange is frequent, helps improving etching speed.The utility model also can be used for the etching production of double sided board, at this moment, only needs valve 18 is opened.
Owing to adopt spray down, for the transmission of printed circuit board (PCB) in etching machine proposed two problems: overcome the come-up of printed board and scratch the distortion of shape plate in spray pressure.The transmission supporting mechanism of printed panel is by motor 21 in the utility model, travelling gear 22,23,26, be supported on pedestal 29, pressing plate 30 in the balladeur train groove, be installed in the pedestal 29 and lay respectively at last transverse axis 27, time transverse axis 24 of printed circuit board (PCB) 4 upper and lower sides, and be located in transverse axis 27 and the following transverse axis 24, formed with its a plurality of upper rollers 28 and lower sheave 25 by rotating shaft.Its center platen 30 by bolted on the balladeur train (not shown), preventing on the pedestal 29 top, this transport sector by with printed board in transmission between the bottom roller 28,25 on 27,24 li on the upper and lower transverse axis, can effectively overcome its rising phenomenon.In addition, can also adopt a kind of carriage that is shape, its two semicircle slotted eyes in upper end are embedded between two adjacent last transverse axis 27, and rectangular bottom surface, its lower end should be tangent with above-mentioned two transverse axis external diameter edges.The behaviour in service of this carriage is to aim at processing to scratch the shape printed board used shown in Fig. 2 B.
Referring to Fig. 1, the old liquid storage tank 5 of etching machine is connected with the sprinkler 8 on electrolytic regeneration machine top, left side by waste drains pump 6, cooler 7 and pipeline.The electrolytic regeneration machine also is a casing made from PVC sheet material, its underpart is a catholyte storage tank 14, top is then for the electrolytic regeneration groove: framework 33, the pressing plate of being made by PVC sheet material 34 and be clipped in the cathode chamber frame (please consulting Fig. 1 and Fig. 3 simultaneously) that the ionic membrane 11 in the middle of it constitutes is divided into both positive and negative polarity alternate cathode chamber 12 and anode chamber 10.Cathode chamber 12 in the middle of being positioned at is connected with the catholyte storage tank 14 of bottom, minus plate 13 is installed in the middle of the cathode chamber 12, both sides, minus plate 13 upper end are horizontally installed with the tubulose sprinkler, and this sprinkler is connected with the catholyte storage tank 14 of bottom through pipeline, negative electrode liquid pump 15 and cooler 16.M place, cathode chamber frame lower end cooperates assembling to form 10 casees grooves in anode chamber of sealing with the dividing plate 20 of electrolysis tank.Be provided with a dividing plate 37 that certain interval is still arranged apart from its base plate 20 in the middle of the anode chamber 10 (consulting Fig. 4 and Fig. 1), positive plate 9 is close to and is installed on the dividing plate 37, be horizontally installed with tubulose sprinkler 8 in the upper end near positive plate 9, this sprinkler 8 is connected with the old etching solution storage tank 5 of etching machine by pipeline, waste drains pump 6, cooler 17.The tank wall top, anode chamber of dividing plate 37 rear sides offers trough type overflow breach 39, and overfall 39 is connected with the fresh etching solution storage tank 1 of etching machine through pipeline.
The major function of electrolytic regeneration machine is to regenerate with the etching solution of crossing, and the copper that etching is got off reclaims simultaneously.Its technological process is: the old liquid after the etching arrives the horizontal tubular sprinkler 8 of electrolyzer anode chamber through waste drains pump 6 and cooler 7, make the old liquid positive plate 9 of flowing through equably from top to bottom, gap stream through its dividing plate 37 downsides flow to anode chamber's back space again, flows out from its rear wall top overfall again.In spent etching solution is flowed through the process of positive plate 9 from top to bottom, the univalent copper ion Cu in the etching solution
+Be oxidized to bivalent cupric ion Ca
++And obtain regenerating; Simultaneously, this structure can make the chloride ion Cl in the etching solution that adopts the above-mentioned flow direction
-Be oxidized to chlorine Cl
2The position occur in the bottom of cathode chamber, the chlorine Cl that is produced
2Rise in the process constantly cupric oxide ion Cu thereon
+, itself restores into chloride ion Cl again
-, so both can avoid the effusion of chlorine, can improve the efficient of CURRENT OXIDATION again.
On the cathode chamber frame between anode chamber and the cathode chamber, be sealed and installed with the ionic membrane 11 of selecting permeability, this ionic membrane only allows copper ion to pass through it, so, after unnecessary copper ion enters cathode chamber 12 with regard to infiltration by ionic membrane 11 in anode chamber's spent etching solution, make the etching solution in the anode chamber 10 reach normal concentration, get back to the fresh liquid storage tank 1 of etching machine after the regeneration again from its rear wall overfall through pipeline, supply with the spraying mechanism continuous operation, form benign cycle.And the copper ion that enters cathode chamber 12 can absorb electronics and be reduced into metallic copper from minus plate 13, falls in the cathode can, makes the etched copper that gets off on the printed panel obtain reclaiming.
The area size of electrolytic regeneration machine intermediate ion film and battery lead plate should be complementary with the quantity of electrolytic regeneration copper in the etching solution, to keep the stability of etching solution component, makes etching process keep optimum state to be as the criterion.
Owing to all be provided with water-jacket typ condensation exhaust pipe 17 (referring to Fig. 1 and Fig. 5) at the top of etching machine and electrolytic regeneration machine, the steam that produces in the time of can making etching and electrolytic regeneration, the hydrogen chloride gas of volatilization are when flowing through this pipe, when steam is condensed into water, hydrochloric acid HCl gas wherein is also thereupon dissolving in the water and return in electrolysis tank or the etching machine, thereby can effectively reduce the effusion of deleterious acidic gas, air conservation.This water-jacket typ condenser 17 is to be welded with pvc pipe, is discharge duct 17 in the middle of it, and its outside is that cooling jacket 40,41 is a cooling water inlet, and 42 is coolant outlet.
In a word, the utility model is a kind of membrane separation technique of utilizing, and the acid chlorization copper etchant solution is regenerated, and does not add oxidant in the continuous etching process, does not discharge waste liquid, free from environmental pollution thereby solve, keep balanced etch capabilities, and reclaim the new device of the metallic copper that etching gets off.When this device carries out the etching operation of single-sided printed board, adopt fountain etching down, effectively avoid side etching phenomenon, and improve etching speed, can carry out the etching of fine wire.This device has good economic benefits and social benefit.
Claims (6)
1. one kind is utilized membrane separation technique regeneration etching solution and is not had the electrical etching machine that discharges waste liquid, form by box etching machine and electrolytic regeneration machine two parts that PVC sheet material constitutes, wherein the etching machine lower box is separated into two storage tanks that interconnect but breach is offered on dividing plate top independently of one another by dividing plate, stores fresh etching solution and used old etching solution respectively; This casing top is equiped with the spraying mechanism of etching solution and the transmission supporting mechanism of printed board; The old liquid storage tank of etching machine is connected with the sprinkler on electrolytic regeneration machine top by waste drains pump, cooler and pipeline, and the bottom of this electrolytic regeneration box body is the catholyte storage tank; It is characterized in that: the top of electrolytic regeneration box body is electrolysis tank: the ion dividing plate by PVC framework, pressing plate and middle selection permeability ionic membrane thereof constitute is divided into alternate cathode chamber of both positive and negative polarity and anode chamber; Cathode chamber in the middle of being positioned at is connected with the catholyte storage tank of bottom, and both sides, the minus plate upper end level of installing in the middle of it is installed on the tubulose sprinkler, and sprinkler is connected with negative electrode liquid pump, cooler by pipeline with the negative electrode liquid bath; The anode chamber is a seal case, positive plate is close on the dividing plate that is installed in wherein, end distance anode chamber base plate leaves certain interval under the dividing plate, upper end level near positive plate is provided with the tubulose sprinkler, this sprinkler is connected with the old etching solution storage tank of etching machine by pipeline, waste drains pump, cooler, membrane backside tank wall top offers trough type overflow breach, and overfall is connected with the fresh etching solution storage tank of etching machine through pipeline.
2. the electrical etching machine that utilizes membrane separation technique regeneration etching solution and do not have the discharging waste liquid as claimed in claim 1, it is characterized in that: the spraying mechanism of above-mentioned etching machine is made up of spray pump, the nozzle that is positioned at the upper and lower side of printed circuit board (PCB) and valve, and wherein valve should be installed on the pipeline that leads to side nozzle on the printed circuit board (PCB).
3. the electrical etching machine that utilizes membrane separation technique regeneration etching solution and do not have the discharging waste liquid as claimed in claim 1, it is characterized in that: the transmission supporting mechanism of printed circuit board (PCB) is by motor in the etching machine, travelling gear, balladeur train, be supported on the pedestal in the balladeur train groove, pressing plate is installed in the pedestal and lays respectively at last transverse axis, time transverse axis of the upper and lower side of printed circuit board (PCB), and be located in the upper and lower transverse axis, formed with its a plurality of upper and lower roller by rotating shaft.
4. the electrical etching machine that utilizes membrane separation technique regeneration etching solution and do not have the discharging waste liquid as claimed in claim 1, it is characterized in that: above-mentioned printed circuit board (PCB) transmits supporting mechanism, also include a kind of carriage of the CC of being shape, but its upper end two semicircle slotted eyes embedding is clipped between two adjacent last transverse axis, and its strip bottom surface, lower end should be tangent with above-mentioned two external diameter edges of going up transverse axis.
5. the electrical etching machine that utilizes membrane separation technique regeneration etching solution and do not have the discharging waste liquid as claimed in claim 1 is characterized in that: be provided with water-jacket typ condensation exhaust pipe above etching machine and electrolytic regeneration box body.
6. the electrical etching machine that utilizes membrane separation technique regeneration etching solution and do not have the discharging waste liquid as claimed in claim 1 is characterized in that: be separately installed with shell and tube cooler on waste drains pump and catholyte delivery side of pump pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222423 CN2249484Y (en) | 1995-09-27 | 1995-09-27 | Film-separation technical regenerated etching agent and electrolyzation etching machine without discharged waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95222423 CN2249484Y (en) | 1995-09-27 | 1995-09-27 | Film-separation technical regenerated etching agent and electrolyzation etching machine without discharged waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2249484Y true CN2249484Y (en) | 1997-03-12 |
Family
ID=33869745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95222423 Expired - Fee Related CN2249484Y (en) | 1995-09-27 | 1995-09-27 | Film-separation technical regenerated etching agent and electrolyzation etching machine without discharged waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2249484Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102249449A (en) * | 2010-05-11 | 2011-11-23 | 环保股份有限公司 | Etching acid waste liquid disposal system, etching acid waste liquid disposal apparatus and etching acid waste liquid disposal method applied to the system and the apparatus |
| CN101209902B (en) * | 2006-12-29 | 2012-03-14 | 崔灒圭 | Glass thinning method |
| CN103108490A (en) * | 2011-11-11 | 2013-05-15 | 深南电路有限公司 | Circuit manufacturing method of super-thick copper circuit board |
-
1995
- 1995-09-27 CN CN 95222423 patent/CN2249484Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209902B (en) * | 2006-12-29 | 2012-03-14 | 崔灒圭 | Glass thinning method |
| CN102249449A (en) * | 2010-05-11 | 2011-11-23 | 环保股份有限公司 | Etching acid waste liquid disposal system, etching acid waste liquid disposal apparatus and etching acid waste liquid disposal method applied to the system and the apparatus |
| CN103108490A (en) * | 2011-11-11 | 2013-05-15 | 深南电路有限公司 | Circuit manufacturing method of super-thick copper circuit board |
| CN103108490B (en) * | 2011-11-11 | 2015-10-07 | 深南电路有限公司 | A kind of circuit processing method of super-thick copper wiring board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |