CN202962813U - Printed circuit board (PCB) blue oil drying device - Google Patents
Printed circuit board (PCB) blue oil drying device Download PDFInfo
- Publication number
- CN202962813U CN202962813U CN 201220646144 CN201220646144U CN202962813U CN 202962813 U CN202962813 U CN 202962813U CN 201220646144 CN201220646144 CN 201220646144 CN 201220646144 U CN201220646144 U CN 201220646144U CN 202962813 U CN202962813 U CN 202962813U
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- China
- Prior art keywords
- pcb
- baker
- blue oil
- pcb board
- blue
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- Expired - Fee Related
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Abstract
The utility model discloses a printed circuit board (PCB) blue oil drying device which comprises a drying device cabinet, a bottom support supporting the drying device cabinet and a drying device front door. A fan cover is arranged above the drying device cabinet. A direct current motor and a three-blade fan are arranged inside the fan cover. A resistance wire fixing box, a hot air screen drawing box and a PCB blue oil plate holder are arranged inside the drying device cabinet. A stepping motor is arranged on one side of the exterior of the drying device. The PCB blue oil plate holder is fixed on the stepping motor. An outer case sleeve is arranged outside the stepping motor. A central processing unit is further arranged inside the outer case sleeve. The whole PCB blue oil drying procedure is controlled by manufactured mechanical equipment and set programs, time for drying blue oil of copper-clad plates in the process of manufacturing a PCB is shortened, drying and heating are even, the copper-clad plates are controlled in a multi-angle rotation mode, and the purpose of temperature control is achieved.
Description
Technical field
The utility model is related to a kind of pcb board blue oil baker, more particularly to a kind of pcb board blue oil baker of the controllable multi-angle selection based on 51 central processing units, belongs to pcb board manufacture technology field.
Background technology
PCB making sheet is applied to the every field that present electronics industry product are designed, and is that electrophile makes the necessary technical ability of circuit board.Making one piece of simple pcb board on the market at present at least needs five days, and our artificial skilled make only needs half a day, and spending only need to spend 1/10th of market price.
Current designer, which does pcb board, substantially three kinds of method hot rolling print methods, dry film method and blue oil method.Wherein blue oil method precision highest, using most wide.But blue oil legal system is made during pcb board often because blue oil drying time is very long, blue oil is heated uneven and influences PCB to make progress in drying course, manually during drying, heat gun temperature is too high easily to be caused to damage to copper-clad plate, it can influence that people's is healthy simultaneously, and the utility model PCB blue oil bakers overcome disadvantages described above just.
Utility model content
The utility model is in view of the shortcomings of the prior art, a kind of pcb board blue oil baker is provided, flow is dried by the plant equipment made and the whole pcb board blue oil of the programme-control set, to realize that the blue oil drying time for making the copper-clad plate in pcb board manufacturing process shortens, drying is heated evenly, the multi-angle rotary control of copper-clad plate, and temperature controlled purpose.
The utility model is achieved through the following technical solutions：
A kind of pcb board blue oil baker, including baker rack, the bottom bracket for supporting dryer rack, baker front door；The top of the baker rack, which is set, sets direct current generator and clover fan in fan housing, fan housing；The baker interior of equipment cabinet sets resistance wire fixed case, hot blast guard to take out case and PCB blue oils plate folder；The outside side of the dryer sets stepper motor, and PCB blue oils plate folder is fixed on stepper motor, is set outside stepper motor in casing, casing and be additionally provided with central processing unit；The baker rack bottom sets bottom vent.
The hot blast guard takes out the upper and lower both sides that case takes out case including top hot blast guard and bottom hot blast guard takes out case, is pressed from both sides respectively positioned at PCB blue oils plate；Temperature sensor, temperature sensor collecting temperature input central processing unit are uniformly arranged on the inside of baker rack.
Also include battery feed, be arranged in casing.
The PCB blue oils plate folder is fixedly installed by plate clamping support and stepper motor, and baker plate folder spring is provided with PCB blue oils plate folder.
Hot blast guard, which is taken out, sets filter screen in case.
The resistance wire fixed case is plug-type resistance wire fixed case, and the both sides of baker rack open up the fixing groove for installing plug-type resistance wire fixed case.
The central processing unit includes wind-force electrical machinery speed adjusting module, temperature control modules, pcb board rotating module, power module, clock module, reseting module；Wherein：
Wind-force electrical machinery speed adjusting module, by detect blue oil dry and wet degree and temperature size come the size of regulation motor rotating speed；
Temperature control modules, change the break-make of multiple rows of resistance wire to control the temperature of hot blast；
Pcb board rotating module, by the program set is moved to stepper motor to drive pcb board to press from both sides multi-angle rotary；
Power module, including main power source and stand-by power supply, main power source are powered respectively by multiple coupled transformer to disparate modules；Stand-by power supply is after main power source power-off, automatic；After main power source restores electricity, stand-by power supply is charged；
There is provided timing function for clock module；
Reseting module, realizes system power-on reset, or resetted during software failure.
The beneficial effects of the utility model are:
The pcb board blue oil baker for the controllable multi-angle rotary based on 51 central processing units that patent of the present invention is provided, has used hydrodynamics technology, temperature detection control technology.As long as the pcb board for coating blue oil is placed in equipment box, the purpose of pcb board uniform high-efficiency drying is automatically controlled with regard to that can reach.
Brief description of the drawings
Fig. 1 is PCB blue oil baker forward sight structure charts；
Fig. 2 is PCB blue oil baker three-dimensional structure diagrams；
Fig. 3 is the module diagram of PCB blue oil bakers.
Wherein：1, fan housing；2, direct current generator；3, clover fan；4, casing；5, stepper motor；6, CPU module；7, bottom bracket；8, fixing groove；9, front door；10, handle；11, bottom vent；12, top hot blast guard takes out case；13, bottom hot blast guard takes out case；14, resistance wire fixed case；15, PCB blue oil plates are pressed from both sides；16, plate clamping support；17, plate folder spring；18, baker rack.
Embodiment
In addition to the implementation, the utility model can also have other embodiment.Under the premise without departing from the principles of the invention, the equivalent or equivalent transformation formed by improvements and modifications all falls within the protection domain of the utility model requirement to all those skilled in the art.
Peripheral frame concrete composition as shown in Figure 1 and Figure 2, mainly includes fan housing 1, casing 4, bottom bracket 7, fixing groove 8, front door 9, the handle 10 on front door, bottom vent 11, baker rack 18.Fan housing 1 is used to fix direct current generator 2, the anti-purpose hurted sb.'s feelings；Casing 4 shields in central processing unit 6 and stepper motor 5 are encapsulated in；Bottom bracket 7 is used to support baker so that space is left in baker bottom, to accelerate ventilation；Fixing groove 8 is used to install plug-type resistance wire fixed case；Baker front door 9 is glass board material, is easy to user to observe baker inner working, and the blue oil of pcb board dries progress；Handle 10 controls the switch at front door, is easy to the extraction of client's pcb board；Bottom vent 11, which is positioned over bottom, is used for the circulation back door of air-flow；Baker can open up back door as needed, using glass board material, and translucency is good, be easy to observation.
Internal structure specifically include direct current generator 2, clover fan 3, stepper motor 5, top hot blast guard take out case 12, bottom hot blast guard take out case 13, resistance wire fixed case 14, multiple rows of resistance wire, PCB blue oils plate folder 15, plate folder spring 17, plate clamping support 18, filter screen, temperature sensor, battery feed.The rear end of direct current generator 2 is fixed on fan housing 1, and front end is connected with clover fan 3, the rotation for electric fan；Fan 3 is uniform under the drive of direct current generator 2 to produce wind-force；Stepper motor 5 is connected with PCB blue oils plate folder 15, drives pcb board multi-angle rotary；Top hot blast guard is taken out case 12 and is positioned under resistance wire fixed case at about 5CM, takes out and filter screen is placed in case；Lower bottom part hot blast guard is taken out case 13 and is placed horizontally above bottom vent at 5CM, takes out and filter screen is placed in case；Resistance wire fixed case 14 is used to place multiple rows of resistance wire；PCB blue oils plate folder 15 is used to fix pcb board so that pcb board energy multi-angle rotary；Plate folder spring 17 is used for fixing pcb board；Plate clamping support 18 is connected on stepper motor 5, plays fixation；Resistance wire 19 is placed in resistance wire fixed case, produces heat；Filter screen is placed on hot blast guard and taken out in case, and its major function is to filter out the dust in air；Temperature sensor is used for the temperature for collecting PCB blue oil baker all angles, and the data that sensing is obtained send into central processing unit；Battery feed, is that equipment is powered during external power failure for storing electricity.
Operation principle：The utility model has A.T.C, rotates pcb board, adjusts the function of wind-force size.PCB blue oil bakers need to be only opened according to the program user set in central processing module, the drying degree of observation blue oil, which is then powered off power supply, can just realize the purpose of blue oil drying.
The course of work：When the pcb board coated is put into baker by user first, after pcb board is fixed, turn on the power, now electric fan and resistance wire are started working, the size of resistance wire power is controlled according to the size of temperature, after heating 2-3 minutes, the outer surface of blue oil starts to condense, now starting the angle of stepper motor rotation pcb board, fully to allow PCB blue oil plates to be heated evenly.In whole process, temperature sensor sends data to central processing unit, central processing unit receives to judge the height of temperature to perform corresponding instruction after data, constant data temperature has been set in advance for 60 DEG C, after temperature sensor senses data, send the data to central processing unit, if temperature is higher than 60 DEG C, central processing unit carries out corresponding instruction, so that the switch motion of resistance wire, so that the heating power of resistance wire declines, when temperature is less than 60 degrees Celsius, central processing unit will be switched by instructing accordingly to resistance wire, make its power upper body, with temperature during reaching really it is constant all the time be operated in 60 DEG C or so.In observation blue oil drying procedure, to take out pcb board.
CPU module, the master chip of central processing module uses STC89C54RD+, and a kernel is made up of based on 51 8 risc processors of high-performance microprocessor, memory, control module.Microprocessor is the core of central processing unit；Memory is used to deposit data, code；The relative program that control module performs microprocessor with wind-force electrical machinery speed adjusting module, heat transmission module, pcb board rotating module is instructed.
The automatic control equipment of pcb board blue oil drying of the utility model based on 51 central processing units mainly includes：
Wind-force electrical machinery speed adjusting module：The module is electrically connected with direct current, the machine shaft other end is connected to clover fan, the module is controlled by central controller module, fan bottom is heat transporting device, by detect blue oil dry and wet degree and temperature size come the size of regulation motor rotating speed, so as to control the power of wind-force, to enable heat quickly to transmit, the drying degree of blue oil is further speeded up.
Temperature control modules：The module is connected with digital temperature sensing, digital temperature sensor is connected on by resistance wire, in the middle of temperature sensor guard, temperature is controlled to reach constant temperature value by setting program, general temperature control is at 60 DEG C or so, when temperature is less than 60 DEG C, single-chip microcomputer will receive a signal, the power of resistance wire will now be tuned up, to accelerate the degree of drying, and when temperature is less than 60 DEG C, single-chip microcomputer receives to turn resistance wire power down after signal, general resistance wire is mainly used to produce heat, the sensor that case 5-6 ㎝ are equipped with digital temperature is taken out apart from resistance wire, for temperature data on the upside of collecting device case, in addition in the 5-6 ㎝ installations bottom temp sensor guard on the upside of equipment box bottom surface.The hot blast temperature data of two temperature transport modules are transferred to central processing module（CPU）, then（CPU）Heat transmission module is controlled according to the program set to change the break-make of multiple rows of resistance wire so as to adjust the size of power to control the temperature of hot blast.Pcb board rotating module：The module is directly connected to pcb board stepper motor, and by the program set is moved to stepper motor to drive pcb board to press from both sides multi-angle rotary, the rotation of PCB stepper motors controls stepper motor rotational angle and speed by central processing unit；Pcb board folder clamps the edge of pcb board using spring clip, PCB tow sides thermally equivalents is made when stepper motor is rotated, so as to accelerate pcb board blue oil drying rate and heated uniformity coefficient.
Power module：PCB blue oil bakers are respectively necessary for+220V ,+24V ,+12V, and point two-way input of four kinds of power supplys of+5V, first line voltage works directly to resistance wire, it is produced heat, power supply is obtained by the method being gradually depressured all the way in addition all the way.The electric network source of input after coupling all the way after filtering ,+12V voltages is being obtained into using 7812 voltage-stabiliser tube voltage stabilizings by multichannel coupling transformer step-down rectifier first.Another road coupling after filtering, is asking that being pressed onto the common single-chip microcomputer of+5V voltages uses using 7805 voltage-stabiliser tubes.In normal state by the offer electric power of power network, when external power failure, battery feed continues as equipment and powered.After restoring electricity, power network can be switched to and powered, and be battery feed charging.
Clock module：Clock circuit is used to producing clock signal required for single-chip microcomputer, single-chip microcomputer controlled well in downtown under between all parts with uncoordinated work.There is a high gain inverting amplifier for being used to constitute oscillator in STC89C54RD+ chip internals, its input is chip pin XTAKL1, and its output end is pin XTAL2.Crystal oscillator and trimmer are bridged between chip exterior, XTAL1 and XYAL2, so as to constitute a stable self-oscillation, 3V or so sine wave is exported on pin XTAL2, here it is the oscillating circuit of single-chip microcomputer.Generally, electric capacity C1 and C2 take 30pF or so, and main function is to aid in oscillator starting of oscillation, and the surge frequency range of crystal is 1.2 ~ 12MHz.Crystal oscillation frequency is high, then the clock frequency of system is also high, and the single-chip microcomputer speed of service is also just fast.In the case of commonly used, STC89C54RD+ is 6MHz or 12MHz using frequency of oscillation.
Reseting module：Reset circuit mainly completes the button reset function of the electrification reset and system of system operationally user, the utility model uses better simply RC circuits, system electrification is charged by resistance to electric capacity, when electric capacity is not up to the threshold voltage of high level, RESET ends are output as high level, and system is in reset state.When the voltage at electric capacity two ends reaches the voltage of high level, RESET ends are output as low level, system worked well.When user pushes button, electric capacity two ends electric charge is released, and RESET ends are output as high level, and system enters reset state, repeats above charging process, and system enters normal condition.
Claims (7)
1. a kind of pcb board blue oil baker, it is characterised in that：Including baker rack, the bottom bracket for supporting dryer rack, baker front door；The top of the baker rack, which is set, sets direct current generator and clover fan in fan housing, fan housing；The baker interior of equipment cabinet sets resistance wire fixed case, hot blast guard to take out case and PCB blue oils plate folder；The outside side of the dryer sets stepper motor, and PCB blue oils plate folder is fixed on stepper motor, is set outside stepper motor in casing, casing and be additionally provided with central processing unit；The baker rack bottom sets bottom vent.
2. pcb board blue oil baker as claimed in claim 1, it is characterised in that：The hot blast guard takes out the upper and lower both sides that case takes out case including top hot blast guard and bottom hot blast guard takes out case, is pressed from both sides respectively positioned at PCB blue oils plate；Temperature sensor, temperature sensor collecting temperature input central processing unit are uniformly arranged on the inside of baker rack.
3. pcb board blue oil baker as claimed in claim 1 or 2, it is characterised in that：Also include battery feed, be arranged in casing.
4. pcb board blue oil baker as claimed in claim 3, it is characterised in that：The PCB blue oils plate folder is fixedly installed by plate clamping support and stepper motor, and baker plate folder spring is provided with PCB blue oils plate folder.
5. pcb board blue oil baker as claimed in claim 4, it is characterised in that：Hot blast guard, which is taken out, sets filter screen in case.
6. pcb board blue oil baker as claimed in claim 5, it is characterised in that：The resistance wire fixed case is plug-type resistance wire fixed case, and the both sides of baker rack open up the fixing groove for installing plug-type resistance wire fixed case.
7. described in pcb board blue oil baker described in claim 6, it is characterised in that：The central processing unit includes wind-force electrical machinery speed adjusting module, temperature control modules, pcb board rotating module, power module, clock module, reseting module；Wherein：
Wind-force electrical machinery speed adjusting module, by detect blue oil dry and wet degree and temperature size come the size of regulation motor rotating speed；
Temperature control modules, change the break-make of multiple rows of resistance wire to control the temperature of hot blast；
Pcb board rotating module, by the program set is moved to stepper motor to drive pcb board to press from both sides multi-angle rotary；
Power module, including main power source and stand-by power supply, main power source are powered respectively by multiple coupled transformer to disparate modules；Stand-by power supply is after main power source power-off, automatic；After main power source restores electricity, stand-by power supply is charged；
There is provided timing function for clock module；
Reseting module, realizes system power-on reset, or resetted during software failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646144 CN202962813U (en) | 2012-11-29 | 2012-11-29 | Printed circuit board (PCB) blue oil drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646144 CN202962813U (en) | 2012-11-29 | 2012-11-29 | Printed circuit board (PCB) blue oil drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202962813U true CN202962813U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646144 Expired - Fee Related CN202962813U (en) | 2012-11-29 | 2012-11-29 | Printed circuit board (PCB) blue oil drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202962813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856352A (en) * | 2019-11-23 | 2020-02-28 | 湖南东神自动化设备有限公司 | Circuit board preheating device |
-
2012
- 2012-11-29 CN CN 201220646144 patent/CN202962813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110856352A (en) * | 2019-11-23 | 2020-02-28 | 湖南东神自动化设备有限公司 | Circuit board preheating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20141129 |
|
| EXPY | Termination of patent right or utility model |