CN104630773B - Automatic PCB board corrosion chamber - Google Patents
Automatic PCB board corrosion chamber Download PDFInfo
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- CN104630773B CN104630773B CN201510099651.5A CN201510099651A CN104630773B CN 104630773 B CN104630773 B CN 104630773B CN 201510099651 A CN201510099651 A CN 201510099651A CN 104630773 B CN104630773 B CN 104630773B
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/02—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding
- H05K3/06—Apparatus or processes for manufacturing printed circuits in which the conductive material is applied to the surface of the insulating support and is thereafter removed from such areas of the surface which are not intended for current conducting or shielding the conductive material being removed chemically or electrolytically, e.g. by photo-etch process
- H05K3/068—Apparatus for etching printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/02—Details related to mechanical or acoustic processing, e.g. drilling, punching, cutting, using ultrasound
- H05K2203/0292—Using vibration, e.g. during soldering or screen printing
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0756—Uses of liquids, e.g. rinsing, coating, dissolving
- H05K2203/0766—Rinsing, e.g. after cleaning or polishing a conductive pattern
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention discloses an automatic PCB board corrosion chamber. The automatic PCB board corrosion chamber comprises a central control module, a frequency modulation vibration module, a mechanical transmission module, a temperature detection and feedback module, a heating module, a liquid-level sensor module, a stroke control module, an alarm reminding module, an OLED liquid crystal display module, a button module, a drive module and a power supply module. According to the working mode of the automatic PCB board corrosion chamber, the temperature detection and feedback module and the heating module form a closed loop so that the temperature of a corrosion solution is maintained at optimum corrosion temperature range; the PCB board is driven to be vibrated by the vibration of a vibration motor so as to greatly speed up the contact rate of PCB board and effective ions in the corrosion solution; the corrosion solution inside the corrosion chamber is stirred through the gas generated from a gas pump so that the effective ions inside the corrosion chamber are uniformly distributed in the corrosion solution, the corrosion rate is accelerated, the corrosion quality is improved, the erosion waiting time is reduced, the manpower is released through automatic control and the corrosion quality is improved by setting and establishing a delay control mechanism. The automatic PCB board corrosion chamber is simple in operation and is convenient to popularize.
Description
Technical field
The present invention relates to a kind of pcb circuit board corrosion device, corrode case particularly to a kind of full-automatic pcb plate.
Background technology
For the Creative Lab of company and enterprise development in laboratory personnel and Ge great colleges and universities electrical type, making circuit board
Aspect, mainly passes through heat-transferring method, the corrosion to circuit board is one of very important program.Domestic at present big portion
The Creative Lab of point electrical type also rests on the stage of manual corrosion to the corrosion of circuit board, makes corruption by rocking corrosion casing
Erosion liquid regularly washes away pcb circuit board, and then pcb circuit board is corroded.Waste laboratory by manual corrosion to open
Send out personnel's substantial amounts of time.
On market part corrosion device be by improve frame for movement, to corrosion case carry out regular rock, make corrosion
Liquid is regular to wash away pcb plate.During shake, because the inertia of water can keep original state, hinder the flowing of water,
Efficiency comparison is low and causes substantial amounts of electric power resource to waste.
On market, partial corrosion case is to extract corrosive liquid by water pump in corrosion case, pcb circuit board to be washed away, by
Contact with corrosive liquid for a long time in water pump interior section, water pump is fragile, pcb circuit board is washed away by water pump, pcb circuit can be made
Plate corrosion is uneven, the big local excessive corrosion of hydraulic pressure easily occurs and little local of hydraulic pressure corrode not abundant.
On market, partial corrosion case is to produce bubble by air pump, corrodes the corrosive liquid in case by bubble agitation, thus
Accelerate the exposure rate of corrosive liquid and pcb plate, and then the corrosion of quickening pcb plate, but this method etching time is long, corrosion effect
Rate is low.As: a kind of small-sized pcb fast erosion pond, application number: 201110002858.8.
Content of the invention
Deficiency for above technology and defect, the purpose of the present invention aims to provide a kind of simple to operate, is easy to promote, rotten
The full-automatic pcb plate corrosion case of erosion efficiency high.
The present invention is achieved by the following technical solution.
By a kind of full-automatic pcb plate corrosion case of this purpose design, its circuit feature: include: central control module, frequency modulation
Shock module, machine driving module, temperature detection and feedback module, heating module, liquid level sensor module, Stroke Control mould
Block, alarm module, oled LCD MODULE, key-press module, drive module, power module.
Its architectural feature: include the rectangle corrosion case made with transparent resistant material, the foremost outside casing has
Three water level marks, correspond to different size of pcb circuit board respectively；Foremost outside casing have three sensors and one red
Outward pipe is switched, three sensors respectively upper liquid level sensors from top to down, temperature sensor, lower liquid level sensor, three
Sensor sensing part is all located at box inside, and is wrapped up by corrosion resistant material；Left and right two sides outside casing has one respectively
Individual motor；There are three pipe joints and a circuit interface in the right side outside casing, and uppermost pipe joint is flexible pipe
Three way cock, joint passes through the side of the outer water pump of silica gel hose, and the opposite side of water pump is connected in filtered water tank by silica gel hose,
The pipe joint of following rear side is straight-through reducer union, and the one of the external electromagnetic valve of silica gel hose is passed through in straight-through reducer union
Side, the opposite side of electromagnetic valve connects the side of another water pump by silica gel hose, and the opposite side of water pump is connected to by silica gel hose
In liquid waste processing box, the pipe joint of front side below is straight-through reducer union, and straight-through reducer union is passed through outside silica gel hose
Connect an air pump.
Corrosion bottom portion is to tilt, and corrosion bottom portion right-hand member height is less than left end；The internal lowermost end of corrosion case is fixed with
One waste liquid outlet pipeline, waste liquid outlet pipeline is connected in a straight-through reducer union, a 220v heating rod, and 220v heats
The outside of rod is covered by one layer of glass, the long tube with micropore, and one end of the long tube with micropore is connected to another straight-through change
On drive connector, four carbon fiber tubule support bases, it is thin that four carbon fiber tubule support bases are respectively fixed with four carbon fibers
Pipe；Gear frame is nested on four carbon fiber tubules by four slideways, and gear frame can be by four slideways in four carbon fibres
Arbitrarily slide up and down on dimension tubule；Three buffer bodies are connected with gear frame, above three buffer bodies, are connected to strip folder base, long
It is fixed with a strip clip on bar folder base, be fixed with a vibration motor inside strip clip side, on rear side of gear frame
Tooth bar is fixed with slideway, tooth bar is engaged with the gear phase on the motor on casing；Solid on the slideway of gear frame forward right side
Surely there is a baffle plate；The top of the side fixed one washing tubule carrying micropore respectively before and after box house, two washings are thin
Gutron is crossed silica gel hose and is connected with all flex tee interface of top on the right side of casing.
The effect of three buffer bodies: three buffer bodies ensure that strip presss from both sides the stability of base, when vibration motor shakes,
Buffer body both can ensure that pcb plate shook with the vibrations of vibration motor, and major part can reach the machinery on gear frame again
Ripple eliminates, thus reducing infringement actuating device being caused due to vibration motor vibrations.
Described frequency modulation shock module: of main control chip has pin and the vibration motor driving of pwm output function
Pwm input is connected, and the outfan that vibration motor drives is connected with vibration motor two ends；In corrosion process, by vibrations electricity
Machine vibrations drive the vibrations of pcb plate, can greatly accelerate the exposure rate of the effective ion in pcb plate and corrosive liquid, thus plus
Fast corrosion rate, passes through to increase the input value of pwm at set intervals, thus increasing vibration frequency and the vibrations width of vibration motor
Degree, escapes being heated and is attached to the gas vesicle on pcb plate and remove.
Corrode the corrosive liquid in case by the gas stirring that air pump produces, so that the effective ion in corrosion case is uniformly distributed in
In corrosive liquid, and then accelerate corrosion rate.
Work side based on the vibrations of the vibrations drive pcb circuit board of vibration motor, supplemented by air pump generation bubble
Formula, can make the effective ion uniform contact in pcb circuit board and solution and accelerate exposure rate, make corrosive liquid to pcb electricity
Road plate homogeneous corrosion, improves corrosion quality and corrosion rate.
Described machine driving module: four pins of main control chip mutually drive input to be connected with each of motor,
Step motor drive outfan is connected with motor；Gear frame passes through four slideways can on four carbon fiber tubules up and down
Voluntary movement, because the gear on motor is mutually twisted with the tooth bar on gear frame, therefore gear frame can pass through stepping
The rotation of motor and move up and down.
Described motor could alternatively be reducing motor.
Described temperature detection and feedback module: described temperature sensor is ds18b20 temperature sensor, the letter of ds18b20
Number output pin is connected with the signal input part pin of main control chip.
Described heating module: 220v heating rod surface has one layer of glass or other corrosion-and high-temp-resistant material.Master control
Chip voltage and 220v heating rod voltage are isolated by electromagnetic relay or optocoupler.
Described liquid level sensor module: liquid level sensor signal output part is connected with the signal input part of main control chip, liquid
Level sensor module is divided into liquid level sensor, lower liquid level sensor two parts；The position of upper liquid level sensor is arranged on
At high water level, the peak level upper limit that liquid energy reaches will be corroded and control under certain height, prevent from occurring when system therefore
During barrier, water inlet pump water inlet makes the corrosive liquid in corrosion case overflow too much；The position of lower liquid level sensor is arranged on minimum water
Position place, is used for detecting corrosive liquid whether emptying when the corrosive liquid in case is corroded in exclusion.
Three water level marks represent the pcb circuit board of three kinds of width, and user selects just according to the width of the pcb plate of oneself
When water level mark, can improve corrosion efficiency, reduce the wasting of resources.
Described Stroke Control module: the signal output part of infrared tube switch is connected with the signal input part of main control chip；
Baffle plate on gear frame and infrared tube switch coordinate to control the rise and fall distance of gear frame, and the length of baffle plate is i.e. just
The one way ultimate range of reason condition underdrive frame.
Described Stroke Control module: the infrared rise and fall that pass switch and baffle fit are controlled with gear frame, permissible
Coordinated to replace with Hall element and permanent magnet or tongue tube and permanent magnet, equally can control the rise and fall of gear frame.
Described alarm module includes two parts, buzzer and corrosion case relay indicating light.
Described oled LCD MODULE: for display system parameters information.
Described drive module includes: vibration motor driving, solenoid-driven, water inlet water pump driving, the water pump that draws water drive, walk
Stepper motor drives.
Camera module socket and wifi module socket are reserved with described corrosion case, when pcb circuit board is in determination again
When time delay waits, after pcb circuit board is transmitted frame and is promoted to outside corrosion case, now, photographic head is clapped to pcb circuit board
According to, and by wifi, the picture of shooting is sent on the computer of corrosion personnel or on mobile phone, corrosion personnel can be by observing
Picture on computer or on mobile phone, or the real time imaging that viewing photographic head shoots is being determined delay selection again.
Corrosion personnel can install specific app application program on mobile phone or install specific software on computers,
Corrosion case inner parameter information is modified and checks.
Water inlet pump water inlet path: filtered water tank -- water pump -- all flex tee joint-washing tubule-corrosion case；
Suction pump draws water path: corrosion case -- straight-through reducer union-electromagnetic valve-water pump-liquid waste processing box；
Air pump pumping path: air pump-straight-through reducer union-corrosion case.
Brief description: Fig. 1 is the water inlet of the present invention, draining schematic diagram.
Fig. 2 is the local appearance structural representation of the present invention.
Fig. 3 is the internal structure schematic diagram of the present invention.
Fig. 4 is the surface structure schematic diagram of the present invention.
In figure: a is corrosion case, and b is filtered water tank, and c is liquid waste processing box, and m is into water route, and n is path of drawing water；
1.1 corrosion casees, 1.2 washing tubules, 1.3 all flex tee joints, 1.4 motors, 1.5 carbon fiber tubules,
1.6 carbon fiber tubule support bases, 1.7 water level marks, 1.8 heating rods, 1.9 bubble tubules, liquid level sensor on 2.1,
2.2 infrared tube switches, 2.3 temperature sensors, 2.4 times liquid level sensors, 2.5 straight-through reducer unions, 2.6 heating rods
Circuit interface, 2.7 straight-through reducer unions, 3.1 tooth bars, 3.2 vibrating motors, 3.3 strip clips, 3.4 strip folder bases,
3.5 buffer bodies, 3.6 slideways, 3.7 gear frames, 3.8 baffle plates.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment further describes to the present invention.
First embodiment
This full-automatic pcb plate corrosion case, its circuit feature: include: central control module, frequency modulation shock module, machinery pass
Dynamic model block, temperature detection and feedback module, heating module, liquid level sensor module, Stroke Control module, alarm module,
Oled LCD MODULE, key-press module, drive module, power module.
Referring to Fig. 1 Fig. 4: its architectural feature:
Including the rectangle corrosion case 1.1 made with transparent resistant material, there are three water levels the foremost outside casing
Mark 1.7, corresponds to different size of pcb circuit board respectively；Foremost outside casing have three sensors and one infrared right
Pipe switch 2.2, three sensors are respectively upper liquid level sensor 2.1, temperature sensor 2.3, lower liquid level sensor from top to down
2.4, three sensor sensing parts are all located at box inside, and are wrapped up by corrosion resistant material；Left and right two sides outside casing
There is a motor 1.4 respectively；There are three pipe joints and a circuit interface, uppermost pipeline in the right side outside casing
Joint is all flex tee joint 1.3, and joint passes through the side of the outer water pump of silica gel hose, and the opposite side of water pump passes through silica gel hose
It is connected in filtered water tank b, the pipe joint of rear side below is straight-through reducer union 2.5, and silica gel is passed through in straight-through reducer union 2.5
The side of the external electromagnetic valve of flexible pipe, the opposite side of electromagnetic valve connects the side of another water pump by silica gel hose, water pump another
Side is connected in liquid waste processing box c by silica gel hose, and the pipe joint of front side below is straight-through reducer union 2.7, leads directly to
The external air pump of silica gel hose is passed through in reducer union 2.7；Corrosion case 1.1 bottom is to tilt, corrosion bottom portion right-hand member height
Less than left end；The internal lowermost end of corrosion case 1.1 is fixed with a waste liquid outlet pipeline, and waste liquid outlet pipeline is connected to one and leads directly to
In reducer union 2.5, a 220v heating rod 1.8, the outside of 220v heating rod is covered by one layer of glass, the long tube with micropore
1.9, one end of the long tube 1.9 with micropore is connected in another straight-through reducer union 2.7, and four carbon fiber tubules support bottom
Seat 1.6, four carbon fiber tubule support bases 1.6 are respectively fixed with four carbon fiber tubules 1.5；Gear frame 3.7 passes through four
Slideway 3.6 is nested on four carbon fiber tubules 1.5, and gear frame 3.7 can be by four slideways 3.6 in four carbon fiber tubules
Arbitrarily slide up and down on 1.5；Three buffer bodies 3.5 are connected with gear frame 3.7, three buffer bodies 3.5 are connected to strip folder above
Base 3.4, strip folder base 3.4 is fixed with a strip clip 3.3, is fixed with a shake inside strip clip 3.3 side
Galvanic electricity machine 3.2, the slideway 3.6 of gear frame 3.7 rear side is fixed with tooth bar 3.1, the motor 1.4 on tooth bar 3.1 and casing
On gear phase occlusion；One baffle plate 3.8 is fixed with the slideway 3.6 of gear frame 3.7 forward right side；Before and after box house, side is upper
The square fixed one washing tubule 1.2 carrying micropore respectively, two washing tubules 1.2 pass through on the right side of silica gel hose and casing
The all flex tee interface 1.3 of side is connected.
The effect of three buffer bodies 3.5: three buffer bodies ensure that strip presss from both sides the stability of base, when vibration motor shake
When dynamic, buffer body both can ensure that pcb plate shook with the vibrations of vibration motor, can reach major part on gear frame again
Mechanical wave eliminates, thus reducing infringement actuating device being caused due to vibration motor vibrations.
Second embodiment
Referring to Fig. 3: frequency modulation shock module:
The dissolubility of gas is relevant with temperature, and after temperature raises, the gas solubility in corrosive liquid reduces, portion gas
Effusion of being heated on pcb plate forms gas vesicle and is attached on pcb plate, thus hindering pcb plate to contact with corrosive liquid, thus pole
The earth reduces corrosion efficiency, so will be purged to the gas vesicle on pcb plate at set intervals.By master control core
Piece is controlled to the pwm input that vibration motor drives, and at set intervals, changes the input value of pwm, thus changing vibrations
The vibration frequency of motor 3.2 and vibration amplitude, the gas vesicle on pcb plate are removed, and then so that corrosive liquid is connect with pcb plate comprehensively
Touch, and then accelerate corrosion rate.Shaken by vibration motor 3.2 and drive the vibrations of pcb plate, can greatly accelerate pcb plate and corruption
The exposure rate of the effective ion in erosion liquid, thus accelerate corrosion rate；Corroded in case by the gas stirring that air pump produces
Corrosive liquid, makes the effective ion in corrosion case be uniformly distributed in corrosive liquid, and then accelerates corrosion rate.
Work based on the vibrations of the vibrations drive pcb circuit board of vibration motor 3.2, supplemented by air pump generation bubble
Mode, can make the effective ion uniform contact in pcb circuit board and solution and accelerate exposure rate, make corrosive liquid to pcb
Circuit board carries out homogeneous corrosion, improves corrosion quality and corrosion rate.
Referring to Fig. 2, Fig. 3: machine driving module:
Gear frame 3.7 pass through four slideways 3.6 can on four carbon fiber tubules 1.5 upper and lower voluntary movement, due to four
Individual slideway 3.6 slickness that ensure that relative slip mutually nested with four carbon fiber tubules 1.5 and stability, when corrosion case two
During two motor 1.4 synchronous operation of side, because the gear on motor 1.4 is mutual with the tooth bar on gear frame 3.7
Occlusion, therefore gear frame 3.7 can be moved up and down by the rotation of motor 1.4.Motor 1.4 has self-locking work(
Can, when motor 1.4 quits work, the gear of motor 1.4 is mutually twisted with the tooth bar 3.1 on gear frame 3.7, because
This can ensure that the optional position being arbitrarily fixed on gear frame 3.7 in stroke range.
Two limit are arranged to tooth bar 3.1, the damage that machine driving module caused due to the system failure is avoided with this: when
When gear frame 3.7 is moved upwards up to top, the bottom part due to tooth bar 3.1 does not have tooth, therefore cannot continue up shifting
Dynamic, thus protecting motor 1.4 and the safety of gear frame 3.7；When gear frame 3.7 is moved down into lowermost end, due to
The greatest length that tooth bar 3.1 can be engaged is less than length from extreme higher position to extreme lower position for the gear frame 3.7, therefore, works as transmission
When frame 3.7 moves to lowermost end, the gear of motor 1.4 is no longer engaged tooth bar 3.1.
Described gear, tooth bar can be dismantled/replace.
Referring to Fig. 2: temperature detection and feedback module and heating module:
Main control chip is processed by the corrosive liquid temperature data that temperature sensor 2.3 is collected, if collection
The temperature value arriving is less than default temperature value, then 220v heating rod 1.8 is started working, when the temperature of corrosive liquid is higher than default temperature
During angle value, then 220v heating rod 1.8 quits work, and thus can form closed loop circuit, the temperature of corrosive liquid is maintained at optimal corruption
Erosion temperature range.
Main control chip voltage and 220v heating rod 1.8 voltage are isolated by electromagnetic relay or optocoupler.
Referring to Fig. 1, Fig. 2, Fig. 3: liquid level sensor module:
Liquid level sensor module is divided into liquid level sensor 2.1, lower liquid level sensor 2.4 two parts.
The position of upper liquid level sensor 2.1 is arranged at peak level, will corrode on the peak level that liquid energy reaches
Limit controls under certain height, prevents when system malfunctions, and water inlet pump water inlet makes the corrosion in corrosion case a too much
Hydrorrhea goes out.When clear water is pumped in corrosion case a from filtered water tank b by intake pump, upper liquid level sensor 2.1 is detecting casing always
Whether water level exceeds the default peak level upper limit, when corroding the water level in case a higher than the peak level upper limit, upper level sensing
Device 2.1 action, upper liquid level sensor 2.1 sends a signal to main control chip, and after main control chip is processed, intake pump stops water inlet.
The height of the below upper liquid level sensor 2.1 of the height of three water level marks 1.7.The representative of three water level marks 1.7
The pcb circuit board of three kinds of width, user selects appropriate water level mark 1.7 according to the width of oneself pcb plate, can improve
Corrosion efficiency, reduces the wasting of resources.
Lower liquid level sensor 2.4: the position of lower liquid level sensor 2.4 is arranged at lowest water level, in exclusion corrosion case
It is used for detecting corrosive liquid whether emptying during interior corrosive liquid.
Because box bottom is to tilt, after the corrosive liquid major part in corrosion case has been discharged corrosion case, remaining
Most corrosion waste liquid all will converge in drain pipe port, when corrosive liquid other for drain pipe port is substantially all emptying by suction pump
When then it is assumed that corrosive liquid emptying in casing.When the corrosive liquid in casing is discharged casing by suction pump, lower level sensing
Whether the corrosive liquid in detection case body is less than default height value to device 2.4 always, when the height of the corrosive liquid in casing be less than pre-
If height value when, now, the action of lower liquid level sensor 2.4 sends a signal to main control chip, after main control chip is processed, draws water
Pump stops draining.
Referring to Fig. 2, Fig. 3: Stroke Control module:
Baffle plate 3.8 on gear frame 3.7 and infrared tube switch 2.2 coordinate to control the rise and fall of gear frame 3.7
Distance, the length of the baffle plate 3.8 i.e. one way ultimate range of gear frame 3.7 under normal circumstances.
Uphill process: when gear frame 3.7 is located at the inside of casing, when gear frame 3.7 rises, due on baffle plate 3.8
Light tube-launched in infrared tube is blocked by end, and some light reflexes in the adopter of infrared tube, infrared tube
High level is persistently delivered to main control chip by switch 2.2, and gear frame persistently rises, when the lower end of baffle plate has exceeded infrared tube
During horizontal level, when the tube-launched light of infrared tube cannot be reflected by baffle plate, then infrared tube switch 2.2 is held
Continuous low level delivered to main control chip processed, thus can realize gear frame is risen with the control of 3.7 distances.
Decline process: when gear frame is located at the outside of 3.7 casings, when rising under gear frame 3.7, due under baffle plate 3.8
Light tube-launched in infrared tube is blocked by end, and some light reflexes in the adopter of infrared tube, infrared tube
High level is persistently delivered to main control chip by switch 2.2, and gear frame 3.7 continuous decrease, when the upper end of baffle plate 3.8 is already below infrared
During the horizontal level that pipe is located, when the tube-launched light of infrared tube cannot be reflected by baffle plate, then infrared right
Low level is persistently delivered to main control chip and is processed by pipe switch 2.2, thus can realize the control to gear frame 3.7 dropping distance
System.
Described Stroke Control module: the infrared rise and fall that pass switch and baffle fit are controlled with gear frame, permissible
Coordinated to replace with Hall element and permanent magnet or tongue tube and permanent magnet, equally can control the rise and fall of gear frame.
Alarm module: alarm module includes two parts, buzzer and corrosion case relay indicating light.
Oled LCD MODULE: for display system parameters information.
Key-press module: perceive human body touching operation for convenience and delicately, it is possible to use infrared induction chip or electrostatic
Induction chip, to replace traditional pressing type button it is also possible to carry out to the ad value of infrared tube colelctor electrode by main control chip
Collection, when the ad value collecting is less than default ad value, then touches effectively, main control chip is processed, if more than default
During value, then it is invalid to touch, and main control chip is not processed, and thus can pass through with the various instruction of handtouch input.
Referring to Fig. 1, Fig. 2:
Water inlet pump water inlet path: filtered water tank b--- water pump --- all flex tee joint 1.3--- washing tubule 1.2--- corrosion
Case a；
Suction pump draws water path: corrosion case a--- leads directly to reducer union 2.5--- electromagnetic valve --- water pump --- liquid waste processing box
c；
Air pump pumping path: air pump --- straight-through reducer union 2.7--- corrodes case a.
Specific embodiment three
Referring to Fig. 1 Fig. 4: concrete operation step:
According to three water level marks 1.7 on corrosion case, corrosion personnel judge which kind of specification the pcb plate of oneself belongs to big
Little circuit board, after choosing water level mark 1.7, pcb circuit board is fixed on strip clip 3.3 corrosion personnel, Ran Hougen
Pour appropriate caustic into according to the area of corrosion needed for the plank of oneself in gear frame 3.7, click on and determine corrosion button, now
Clear water is evacuated in corrosion case a from filtered water tank b by intake pump, and now, 220v heating rod 1.8 is started working；When in corrosion case a
After water level reaches selected water level mark 1.7 lines, intake pump quits work, and now, gear frame 3.7 begins to decline, and works as transmission
When frame 3.7 drops in case, now vibration motor 3.2 is started working, and air pump is started working；Tie when corroding presetting timing
Shu Hou, now 220v heating rod 1.8 quit work, air pump quits work, and vibration motor 3.2 quits work, and buzzer sends sound
Sound is pointed out, and relay indicating light carries out flash for prompting, and two motors 1.4 are started working, and gear frame 3.7 rises；Work as biography
After moving frame 3.7 rises to outside casing, wait corrosion personnel to carry out corrosion and determine delay selection again, if corrosion is fully, select
Select determination, carry out waste liquid discharge and pcb circuit board is rinsed, if corrosion is not abundant, personnel are according to extent of corrosion for corrosion
Carry out again delay selection to process.
Corrosion determines delay strategy again: first draining, then washs.
Corrosion determines delays time to control mechanism again: corrosion personnel pass through to observe pcb plate extent of corrosion, if corrosion is fully,
Corrosion personnel selection determines, then corrosion case a starts to discharge waste liquid and pcb plate is rinsed.If corrosion is not abundant, rotten
Erosion personnel carry out selecting delay time again according to extent of corrosion and personal experience, and after selecting delay time, corrosion case a will continue again
Pcb circuit board is corroded.Determine delays time to control mechanism again by setting up corrosion, pcb circuit board can be made fully to corrode, reach
To expected effect.When pcb plate is in wait corrosion personnel and carries out corroding determination delay selection again, due to adhering on pcb plate
Partial corrosion liquid and and air contact, now, easily the attached copper on pcb plate is caused aoxidize, in order to reduce this adverse effect,
After waiting 60 seconds, if corrosion personnel are untreated, corrosion case automatically executes waste liquid and discharges and pcb circuit board is rinsed
Subsequent treatment.
First draining: after determining that corrosion terminates, electromagnetic valve is opened, and after electromagnetic valve opens 3 seconds, suction pump starts to corrode case
Corrosive liquid in a is evacuated in liquid waste processing box c, when liquid level sensor 2.4 detects water level less than preset water level instantly, then draws water
Pump quits work, after suction pump quits work three seconds, closed electromagnetic valve.
Wash again: after closed electromagnetic valve, now gear frame 3.7 is located at the outside of casing, when gear frame 3.7 drops to suitably
After highly, now water inlet water pump is started working, and clear water is injected into the washing of both sides by water inlet water pump by all flex tee joint 1.3
In tubule 1.2, clear water washs the micropore in tubule 1.2 by both sides and is ejected into pcb circuit board both sides to partial below, to p
Cb circuit board is washed away.Now, vibration motor 3.2 is started working, and strip clip 3.3 is with the vibrations of vibration motor 3.2
And shake, pcb circuit board shakes with the vibrations of strip clip 3.3；During injection, main control chip is to motor
1.4 are controlled, and so that gear frame 3.7 is moved up and down in the range of a certain distance, and then make the clear water pair that micropore ejects
Pcb circuit board is fully washed, and meanwhile, air pump is started working, and is corroded clear in case a by the bubble agitation that air pump produces
Water, and then corrosion case a bottom is rinsed, after the clear water of micropore injection rinses 30 seconds to pcb circuit board, now rinse knot
Bundle, water inlet water pump quits work, and vibration motor 3.2 stops vibrations, and gear frame 3.7 is promoted to outside corrosion case a motor 1.4
Face, buzzer and relay indicating light are pointed out, and electromagnetic valve is opened, and after electromagnetic valve opens 3 seconds, flushing liquor is taken out by the pump work that draws water
To liquid waste processing box c.
It is reserved with camera module socket and wifi module socket, when pcb circuit board is in determination time delay again on corrosion case
During wait, after pcb circuit board is transmitted frame and is promoted to outside corrosion case, now, photographic head is taken pictures to pcb circuit board,
And by wifi, the picture of shooting is sent on the computer of corrosion personnel or on mobile phone, corrosion personnel can be by observing computer
Picture on upper or mobile phone, or the real time imaging that shoots of viewing photographic head is being determined delay selection again.
Corrosion personnel can install specific app application program on mobile phone or install specific software on computers,
Corrosion case inner parameter information is modified and checks.
Affect pcb plate corrosion rate mainly has three factors: having in corrosive liquid concentration, corrosion liquid temp, corrosive liquid
Effect ion and contact area within the unit interval for the pcb plate.After the corrosion certain density corrosive liquid of personnel depaly, by temperature
Detection and feedback module and heating module form closed loop and are maintained at optimal corrosion temperature interval by corroding liquid temp, by master
Control chip is controlled to the pwm input that vibration motor drives, by changing the input value of pwm, thus changing vibration motor
Vibration frequency and vibration amplitude, pcb circuit board shakes with the vibrations of vibration motor, and then accelerates effective in corrosive liquid
Ion and contact area within the unit interval for the pcb circuit board, corrode the corrosive liquid in case by the gas stirring that air pump produces,
So that the effective ion in corrosion case is uniformly distributed in corrosive liquid, and then accelerate corrosion rate, reduce the corrosion waiting time, pass through
The vibrations of vibration motor drive based on the vibrations of pcb circuit board, the working method supplemented by air pump generation bubble, can make pcb
Effective ion uniform contact in circuit board and solution and accelerate exposure rate, to pcb circuit board homogeneous corrosion, improves corrosion
Quality and corrosion rate；Discharge by Automatic Control and then by staff.
The foregoing is only presently preferred embodiments of the present invention, be not used for limiting the practical range of the present invention；Every according to
Equivalence changes and modification that the present invention is made, are all covered by the scope of claims of the present invention.
Claims (9)
1. a kind of full-automatic pcb plate corrodes case, comprising: main control chip, sensor signal importation, output control part, drive
Dynamic model block, power module, corrosion case, water inlet pump water inlet path sections, suction pump draw water path sections gentle pump pumping path portion
Point；Sensor signal importation includes: liquid level sensor module, temperature detection and feedback module, Stroke Control module and press
Key module, output control part includes: frequency modulation shock module, machine driving module, heating module, alarm module and oled
LCD MODULE；It is characterized in that: main control chip and sensor signal importation, output control part, drive module, electricity
Source module is connected；Liquid level sensor module includes liquid level sensor (2.1) and lower liquid level sensor (2.4), temperature detection with
Feedback module includes temperature sensor (2.3), and Stroke Control module includes baffle plate (3.8) and infrared tube switch (2.2), frequency modulation
Shock module includes: vibration motor (3.2), strip clip (3.3), strip folder base (3.4), buffer body (3.5), machine driving
Module includes: motor (1.4), tooth bar (3.1), carbon fiber tubule support base (1.6), slideway (3.6), carbon fiber tubule
(1.5), gear frame (3.7), heating module includes 220v heating rod (1.8)；The rectangle being made up of transparent resistant material is rotten
There are three water levels mark (1.7) foremost outside erosion case (1.1), corresponds to different size of pcb circuit board respectively；Outside casing
Foremost have three sensors and infrared tube to switch (2.2), three sensors are respectively upper liquid level from top to down and pass
Sensor (2.1), temperature sensor (2.3), lower liquid level sensor (2.4), three sensor sensing parts are all located at box inside,
And wrapped up by corrosion resistant material；Left and right two sides outside casing has a motor (1.4) respectively；The right side outside casing
There are three pipe joints and a circuit interface, uppermost pipe joint is all flex tee joint (1.3), joint passes through silica gel
The side of the outer water pump of flexible pipe, the opposite side of water pump is connected in filtered water tank (b) by silica gel hose, the pipeline of rear side below
Joint is straight-through reducer union (2.5), and straight-through reducer union (2.5) passes through the side of the external electromagnetic valve of silica gel hose, electromagnetic valve
Opposite side connect the side of another water pump by silica gel hose, the opposite side of water pump is connected to liquid waste processing box by silica gel hose
In c, the pipe joint of front side below is straight-through reducer union (2.7), and straight-through reducer union (2.7) is passed through outside silica gel hose
Connect an air pump；Corrosion case (1.1) bottom is to tilt, and corrosion bottom portion right-hand member height is less than left end；Corrosion case (1.1) is internal
Lowermost end is fixed with a waste liquid outlet pipeline, and waste liquid outlet pipeline is connected on a straight-through reducer union (2.5), one
220v heating rod (1.8), the outside of 220v heating rod is covered by one layer of glass, and the long tube (1.9) with micropore, with micropore
One end of long tube (1.9) is connected on another straight-through reducer union (2.7), four carbon fibers tubule support base (1.6), and four
Individual carbon fiber tubule support base (1.6) is respectively fixed with four carbon fiber tubules (1.5)；Gear frame (3.7) passes through four cunnings
Road (3.6) is nested on four carbon fiber tubules (1.5), and gear frame (3.7) can be by four slideways (3.6) in four carbon fibres
Arbitrarily slide up and down in dimension tubule (1.5)；Three buffer bodies (3.5) are connected with gear frame (3.7), on three buffer bodies (3.5)
Face is connected to strip folder base (3.4), and strip folder base (3.4) is fixed with a strip clip (3.3), strip clip
(3.3) it is fixed with a vibration motor (3.2) inside side, the slideway (3.6) on rear side of gear frame (3.7) is fixed with tooth bar
(3.1), tooth bar (3.1) is engaged with the gear phase on the motor (1.4) on casing；The slideway of gear frame (3.7) forward right side
(3.6) it is fixed with a baffle plate (3.8) on；Before and after box house, fixed one washing carrying micropore of top difference of side is thin
Pipe (1.2), two washings tubule (1.2) are passed through silica gel hose and are connected with all flex tee joint (1.3) of top on the right side of casing；Enter
Water feeding of water pump path: filtered water tank (b) --- water pump --- all flex tee joint (1.3) --- washing tubule (1.2) --- corrosion case；Take out
Pumping for water pump path: corrosion case --- straight-through reducer union (2.5) --- electromagnetic valve --- water pump --- liquid waste processing box (c)；Air pump
Pumping path: air pump --- straight-through reducer union (2.7) --- corrodes case；Main control chip is collected to temperature sensor (2.3)
Corrosive liquid temperature data processed, by controlling 220v heating rod (1.8), the temperature of corrosive liquid is maintained at optimal corrosion
Temperature range, the work based on the vibrations drive pcb circuit board vibrations of vibration motor (3.2), supplemented by air pump generation bubble
Mode, makes the effective ion uniform contact in pcb circuit board and solution and accelerates exposure rate, when baffle plate (3.8) lower end will
In infrared tube switch (2.2), tube-launched light blocks, and some light reflexes to the acceptance of infrared tube switch (2.2)
Guan Zhong, high level is persistently delivered to main control chip, due to the gear on motor (1.4) and biography by infrared tube switch (2.2)
Tooth bar (3.1) in moving frame (3.7) is mutually twisted, and main control chip makes gear frame by controlling the rotation of motor (1.4)
(3.7) move up and down on four carbon fiber tubules (1.5), when baffle plate (3.8) lower end does not switch infrared tube in (2.2)
Tube-launched light blocks, and motor (1.4) stops operating, with this pass through gear frame (3.7) on baffle plate (3.8) and
Infrared tube switch (2.2) coordinates controlling the rise and fall distance of gear frame (3.7), by by upper liquid level sensor
(2.1) position is arranged at peak level, will corrode the peak level upper limit that liquid energy reaches control certain height it
Under, when clear water is pumped in corrosion case (a) from filtered water tank (b) by intake pump, upper liquid level sensor (2.1) is always in detection case
Whether body water level exceeds the default peak level upper limit, when corroding the water level in case (a) higher than the peak level upper limit, upper liquid level
Sensor (2.1) action, upper liquid level sensor (2.1) sends a signal to main control chip, and after main control chip is processed, intake pump stops
Only intake, by being arranged on the position of lower liquid level sensor (2.4) at lowest water level, when the corrosive liquid in case is corroded in exclusion
Detection corrosive liquid whether emptying, is carried out by the pump water inlet path that intakes plus clear water and pcb circuit board is rinsed.
2. corrosion case according to claim 1, it is characterized by: in frequency modulation shock module, of main control chip has pwm
The pwm input that the pin of output function is driven with vibration motor is connected, outfan and vibration motor two that vibration motor drives
End is connected.
3. corrosion case according to claim 1, it is characterized by: in frequency modulation shock module, of main control chip has pwm
The pwm input that the pin of output function is driven with air pump is connected, and the outfan that air pump drives is connected with air pump two ends.
4. corrosion case according to claim 1, it is characterized by: it is provided with a temperature sensing in temperature detection and feedback module
Device, described temperature sensor is ds18b20 temperature sensor, the signal output part pin of ds18b20 and the signal of main control chip
Input pin is connected.
5. corrosion case according to claim 1, it is characterized by: it is provided with a 220v heating rod in heating module, 220v adds
Hot pin surface has one layer of glass；Main control chip voltage and 220v heating rod voltage by electromagnetic relay or optocoupler carry out every
From.
6. corrosion case according to claim 1, it is characterized by: described liquid level sensor module: liquid level sensor signal is defeated
Go out end to be connected with the signal input part of main control chip, liquid level sensor module is divided into liquid level sensor, lower liquid level sensor two
Part；The position of upper liquid level sensor is arranged at peak level, the peak level upper limit control that liquid energy reaches will be corroded
Under certain height；The position of lower liquid level sensor is arranged at lowest water level, the corrosive liquid in exclusion corrosion case
When be used for detecting corrosive liquid whether emptying.
7. corrosion case according to claim 1, it is characterized by: described Stroke Control module: the signal of infrared tube switch
Outfan is connected with the signal input part of main control chip；Baffle plate on gear frame and infrared tube switch cooperation to control gear frame
Rise and fall distance；Can be coordinated to replace with Hall element and permanent magnet or tongue tube and permanent magnet, equally can control
The rise and fall of gear frame processed.
8. corrosion case according to claim 1, it is characterized by: described machine driving module: four pins of main control chip
Each with motor mutually drives input to be connected, and step motor drive outfan is connected with motor；Gear frame passes through
Four slideways can on four carbon fiber tubules upper and lower voluntary movement, due to the tooth on the gear on motor and gear frame
Bar is mutually twisted, and therefore gear frame can be moved up and down by the rotation of motor；Described motor could alternatively be
Reducing motor.
9. corrosion case according to claim 1, it is characterized by: key-press module can use infrared induction chip or electrostatic sense
Answer chip, to replace traditional pressing type button it is also possible to adopt to the ad value of infrared tube colelctor electrode by main control chip
Collection, when the ad value collecting is less than default ad value, then touches effectively, main control chip is processed, if being more than default value
When, then it is invalid to touch, and main control chip is not processed, and thus can pass through with the various instruction of handtouch input.
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| CN108007851A (en) * | 2016-10-28 | 2018-05-08 | 天津台信检测技术有限公司 | Auto parts and components corrosion testing apparatus |
| CN106455348A (en) * | 2016-11-29 | 2017-02-22 | 福建农林大学 | PCB (Printed Circuit Board) lift etching machine and using method thereof |
| CN107620065A (en) * | 2017-09-18 | 2018-01-23 | 宋彦震 | A kind of full-automatic PCB corrosion case |
| CN107523830A (en) * | 2017-09-18 | 2017-12-29 | 宋彦震 | Full-automatic PCB corrosion case |
| CN109587962B (en) * | 2018-12-17 | 2024-01-02 | 大连理工大学 | Semi-automatic copper-clad plate corrosion box |
| CN112844096A (en) * | 2020-12-30 | 2021-05-28 | 深圳市鼎业电子有限公司 | Full-automatic corrosion equipment for preparing printed circuit board |
| CN114199126A (en) * | 2021-12-01 | 2022-03-18 | 大族激光科技产业集团股份有限公司 | Non-contact positioning system and method |
| CN116026753B (en) * | 2023-03-29 | 2023-06-20 | 常州澳弘电子股份有限公司 | PCB corrosion resistance detection process and detection equipment |
| CN116908654A (en) * | 2023-07-24 | 2023-10-20 | 扬州国宇电子有限公司 | Automatic corrosion uncapping device for semiconductor packaging device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102056416A (en) * | 2011-01-07 | 2011-05-11 | 华南理工大学 | Minitype fast corrosion tank of printed circuit board (PCB) |
| CN203327388U (en) * | 2013-07-10 | 2013-12-04 | 厦门大学 | Corrosive liquid scouring machine |
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| JP3997150B2 (en) * | 2002-12-06 | 2007-10-24 | ソニー株式会社 | Substrate manufacturing apparatus and manufacturing method |
| EP2446067B1 (en) * | 2009-06-25 | 2019-11-20 | 3M Innovative Properties Company | Methods of wet etching a self-assembled monolayer patterned substrate and metal patterned articles |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102056416A (en) * | 2011-01-07 | 2011-05-11 | 华南理工大学 | Minitype fast corrosion tank of printed circuit board (PCB) |
| CN203327388U (en) * | 2013-07-10 | 2013-12-04 | 厦门大学 | Corrosive liquid scouring machine |
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