CN205793692U - PCB device spray constant-voltage system - Google Patents
PCB device spray constant-voltage system Download PDFInfo
- Publication number
- CN205793692U CN205793692U CN201620615860.0U CN201620615860U CN205793692U CN 205793692 U CN205793692 U CN 205793692U CN 201620615860 U CN201620615860 U CN 201620615860U CN 205793692 U CN205793692 U CN 205793692U
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- China
- Prior art keywords
- spray
- constant
- pcb
- voltage system
- converter
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Abstract
The open a kind of PCB device spray constant-voltage system of this utility model, including PLC, converter, pressure transducer, water pump, motor and spray system, the outlet of described water pump is connected formation water inlet flow channel through the water inlet of filter with described spray system, the outlet of described spray system is in return pipe is circulated to the cylinder body of described water pump, described pressure transducer is arranged on described water inlet flow channel, the input signal of described pressure transducer is connected with the PID module of described converter, described PLC is connected with described inverter communication by communication module, the PID module of described converter is connected to the dynamic Control circuit of described motor, described driven by motor pump operation supplies water.This utility model uses frequency control way to be automatically adjusted pump motor rotating speed." highly energy-consuming, the most manually " mode, be automatically performed pump rotary speed and adjusted, and pressure detects in real time, improves energy utilization rate, makes spray pressure constant, precise production technology requirement in the past in change.
Description
Technical field
This utility model relates to PCB etching and processing technical field, specifically, relates to a kind of PCB device spray constant voltage
System.
Background technology
Etching (etching) is skill substrate use chemical reaction or the physical shock effect of printed circuit board removed
Art, etching technique can be divided into wet etching (wet etching) and dry ecthing (dry etching) two classes, and usual indication etches
Also referred to as photochemical etching (photochemical etching), after referring to by exposure plate-making, development, will the guarantor of etching area
Cuticula is removed, and when etching, contact chemical solution, reaches the effect of dissolved corrosion, form the concavo-convex or effect of hollow out molding.
Spray is an important step in etching process, has strong influence to etch capabilities is uniform and stable, along with
The development of variable-frequency control technique and PCB product technique and the requirement of national energy-saving environmental protection, original poor efficiency, highly energy-consuming sprays
System, the most no longer meets the manufacturing technique requirent energy consumption policy relevant with country of PCB.
Therefore, prior art existing defects, need to improve.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of employing frequency control way is automatically adjusted
Pump motor rotating speed, improves energy utilization rate, makes spray pressure constant, the PCB device spray constant voltage that precise production technology requires
System.
The technical solution of the utility model is as follows:
A kind of PCB device spray constant-voltage system, including PLC, converter, pressure transducer, water pump, motor and spray system
System, the outlet of described water pump is connected formation water inlet flow channel, described spray system through the water inlet of filter with described spray system
The outlet of system is in return pipe is circulated to the cylinder body of described water pump, and described pressure transducer is arranged on described water inlet flow channel,
The input signal of described pressure transducer is connected with the PID module of described converter, and described PLC is by communication module and described change
Frequently device communication connects, and the PID module of described converter is connected to the dynamic Control circuit of described motor, described driven by motor water pump
Operating is supplied water.
Further, described spray system is made up of spray equipment, PCB connecting gear and casing, described spray dress
Putting and be arranged in described casing with PCB connecting gear, described spray equipment includes being arranged on the described upper and lower both sides of PCB connecting gear
Rocking carrier and rotate be arranged in described rocking carrier and several spaced showers, described water inlet flow channel and institute
Stating the input duct on shower to connect, described return pipe stretches into from the bottom of described casing.
Further, described shower is provided with several for the nozzle spraying medicinal liquid.
Further, described PCB device spray constant-voltage system also includes the man-computer interface run for control system, described
Man-computer interface is connected with described PLC communication.
Further, described man-computer interface is touch screen.
Further, the water inlet of described spray system is provided with Pressure gauge.
Further, it is connected by 8 core shielded cables between described communication module with described converter.
Further, on the dynamic Control circuit of described motor, connection has alarm.
Further, described water pump is provided with several.
Compared with prior art, the beneficial effects of the utility model are: PCB of the present utility model device spray constant voltage system
System is made up of PLC, converter, pressure transducer, water pump, motor and spray system, and frequency conversion and unvarying pressure control is used PLC, pressure
Force transducer and converter carry out external setting-up pid parameter, and the pid control mode carried with converter carries out pressure, frequency is mended
Just, reaching the purpose of High Precision Automatic constant voltage, this PCB device spray constant-voltage system has the advantage that
1) ensure that spray pressure is constant, steady production technique, improves product quality；
2) by the application of automatic control technology, the most energy-conservation but also can save and the most automatically monitor；
3) user can understand the operation with control system by the man-computer interface on switch board panel, has given full play to people
The scientific monitor management at machine interface；
4) simple to operate, failure rate is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in detail.
As it is shown in figure 1, this utility model provides a kind of PCB device spray constant-voltage system, this PCB device spray constant-voltage system
Form including by PLC1, man-computer interface 2, converter 3, pressure transducer 4, several water pumps 5, motor and spray system 6, described
The outlet of water pump 5 is connected formation water inlet flow channel 8, described spray system 6 through the water inlet of filter 7 with described spray system 6
Outlet in return pipe 9 is circulated to the cylinder body 51 of described water pump 5, described pressure transducer 4 is arranged on described water inlet flow channel 8
On, the water inlet of described spray system is provided with Pressure gauge 10, the input signal of described pressure transducer 4 and described converter
The PID module of 3 connects, and described PLC1 is connected with the communication of described converter 3 by communication module, and described man-computer interface 2 is with described
PLC1 communication connects, and the PID module of described converter 3 is connected to the dynamic Control circuit of described motor, described driven by motor water
Pump 5 operating is supplied water, and user can understand the operation with control system by the man-computer interface 2 on switch board panel.
Wherein, described spray system 6 is made up of spray equipment 61, PCB connecting gear 62 and casing 63, described spray
Device 61 and PCB connecting gear 62 is arranged in described casing 63, and described spray equipment 61 includes being arranged on described PCB conveyer
Rocking carrier and the rotation of structure about 62 both sides are arranged in described rocking carrier and several spaced showers, described
Shower is provided with several and connects with the input duct on described shower for the nozzle spraying medicinal liquid, described water inlet flow channel 8
Connecing, described return pipe 9 stretches into from the bottom of described casing 63.
This utility model is by setting up pressure transducer 4, converter 3, man-computer interface 2 on the basis of tradition spray system
And PLC1 realize spray constant voltage:
Described PLC1 is exactly substantially a super microcomputer, and its hardware configuration is substantially identical with microcomputer, its be by
CPU, memorizer (EPROM, ROM), input and output (I O) module, peripheral hardware I the composition such as O Interface, power supply, by each several part control
Line is formed by connecting.The working method of Programmable Logic Controller has bigger different from microcomputer, and Programmable Logic Controller is not to use microcomputer
Interrupt mode, but program is carried out scan round repeatedly, and it is explained one by one execution；
Being provided with PID module in described converter 3, this PID module parameter computing response speed is fast, and output is stable, wiring and
Parameter arranges the most more convenient, it is easy to safeguard；
Described man-computer interface 4 is touch screen, makes more convenient operation, it is possible to monitoring industrial processes, Yi Jiji the most in real time
Record history production technology, provides Reliable guarantee for improving PCB product quality further；
Its operation principle is: by the pressure transducer 4 being arranged on water inlet flow channel 8, the pressure of water pump 5 outlet is believed
The standard signal of number DC4-20mA sends into converter 3, compares with setting pressure parameter through the PID module arithmetic of converter 3,
Draw a regulation parameter, and controlled the rotating speed of water pump 5, water yield adjusting by converter 3, make the pressure in shower be maintained to
Level pressure force value；Along with the continuous firing of equipment, the filtration school fruit meeting continuous decrease of filter 7 so that the pressure in shower is also
Can decline.When real-time spray pressure is less than demand spray pressure value, control turning of water pump 5 by the PID module of converter 3
Speed, thus improve water flow, makes spray pressure control within the range of error of setting value, it is achieved spray pressure constant.
When needs are with arranging according to different size PCB switching pressure, it is only necessary to from man-computer interface 2 input pressure value, system can be adjusted automatically
The water yield of whole water pump 5, thus realize the automatic switchover of pressure and constant.
It is connected it is also preferred that the left carry out network by 8 core shielded cables between described communication module with described converter 3, connects
More reliable.
In the present embodiment, the input signal cable of described pressure transducer 4 can be directly connected to 2,4 two of converter 3
Terminal, eliminates the AD and the trouble of D/A module in the past needing to increase PLC1, had both saved two analog modules, and connect less
A lot of holding wires, can effectively reduce for cost and man-hour.
It is also associated with alarm, when occurring under phase shortage, frequency converter failure, liquid level on the dynamic Control circuit of described motor
During the situations such as limit, superpressure, differential pressure, system all can send acoustic alarm signal；Particularly when phase shortage, frequency converter failure, liquid occur
During lower limit, the superpressure of position, system also can autostop, and send acoustic alarm signal, notice maintainer comes maintenance.Additionally,
During frequency converter failure, system autostop, now can switch to manual mode and proceed to produce.
In sum, PCB device spray constant-voltage system of the present utility model changes original spray voltage regulating mode, uses and becomes
Frequently device function command PID is arranged flexibly, according to equipment practical situation, each parameter request is carried out closed loop regulation and controls, employment
Machine interface shows various state and self-diagnostic function, makes system work reliably to facilitate, more can protect in unit PCB production technology
The stability of card equipment；Using the frequency control method of operation the most in systems, system can be adjusted automatically according to actual set pressure
Water saving pump motor rotating speed, make the pressure in PCB device spray be maintained at set-point, in the hope of the most energy-conservation, joint time, joint
Money, and make system be in the state of reliability service, it is achieved constant voltage sprays；Application converter startup motor can effectively extend simultaneously
In the service life of equipment, effect of the present utility model is obvious, is suitable to be widely used.
These are only preferred embodiment of the present utility model, be not limited to this utility model, all in this practicality
Any amendment, equivalent and the improvement etc. made within novel spirit and principle, should be included in guarantor of the present utility model
Within the scope of protecting.
Claims (9)
1. a PCB device spray constant-voltage system, it is characterised in that: include PLC, converter, pressure transducer, water pump, motor
And spray system, the outlet of described water pump is connected formation water inlet flow channel, institute through the water inlet of filter with described spray system
Stating the outlet of spray system in return pipe is circulated to the cylinder body of described water pump, described pressure transducer is arranged on described water inlet
On runner, the input signal of described pressure transducer is connected with the PID module of described converter, and described PLC passes through communication module
Being connected with described inverter communication, the PID module of described converter is connected to the dynamic Control circuit of described motor, described motor
Drive pump operation supplies water.
PCB device spray constant-voltage system the most according to claim 1, it is characterised in that: described spray system is by spraying
Device, PCB connecting gear and casing are formed, and described spray equipment and PCB connecting gear are arranged in described casing, described spray
Shower device include the rocking carrier being arranged on the described upper and lower both sides of PCB connecting gear and rotate be arranged in described rocking carrier and
Several spaced showers, described water inlet flow channel is connected with the input duct on described shower, described return pipe from
The bottom of described casing is stretched into.
PCB device spray constant-voltage system the most according to claim 2, it is characterised in that: described shower is provided with some
The individual nozzle for spraying medicinal liquid.
PCB device spray constant-voltage system the most according to claim 1, it is characterised in that: described PCB device spray constant voltage system
System also includes the man-computer interface run for control system, and described man-computer interface is connected with described PLC communication.
PCB device spray constant-voltage system the most according to claim 4, it is characterised in that: described man-computer interface is touch screen.
PCB device spray constant-voltage system the most according to claim 1, it is characterised in that: the water inlet of described spray system
On be provided with Pressure gauge.
PCB device spray constant-voltage system the most according to claim 1, it is characterised in that: described communication module and described change
Frequently connected by 8 core shielded cables between device.
PCB device spray constant-voltage system the most according to claim 1, it is characterised in that: the dynamic Control line of described motor
Connect on road and have alarm.
PCB device spray constant-voltage system the most according to claim 1, it is characterised in that: described water pump is provided with several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615860.0U CN205793692U (en) | 2016-06-22 | 2016-06-22 | PCB device spray constant-voltage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615860.0U CN205793692U (en) | 2016-06-22 | 2016-06-22 | PCB device spray constant-voltage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205793692U true CN205793692U (en) | 2016-12-07 |
Family
ID=58129714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620615860.0U Expired - Fee Related CN205793692U (en) | 2016-06-22 | 2016-06-22 | PCB device spray constant-voltage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205793692U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302928A (en) * | 2019-06-26 | 2019-10-08 | 广东华祐新材料有限公司 | A kind of protective layer coating unit |
| CN111055596A (en) * | 2019-12-30 | 2020-04-24 | 广州兴森快捷电路科技有限公司 | PCB solder mask spraying automation system and method |
| CN111174362A (en) * | 2020-03-02 | 2020-05-19 | 郑州科技学院 | Textile air conditioner spraying system and constant-pressure variable-flow control method thereof |
| TWI834337B (en) * | 2021-10-26 | 2024-03-01 | 大陸商先進半導體材料（深圳）有限公司 | Constant pressure spray equipment, constant pressure spray methods and monitors |
-
2016
- 2016-06-22 CN CN201620615860.0U patent/CN205793692U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302928A (en) * | 2019-06-26 | 2019-10-08 | 广东华祐新材料有限公司 | A kind of protective layer coating unit |
| CN111055596A (en) * | 2019-12-30 | 2020-04-24 | 广州兴森快捷电路科技有限公司 | PCB solder mask spraying automation system and method |
| CN111055596B (en) * | 2019-12-30 | 2021-12-21 | 广州兴森快捷电路科技有限公司 | PCB solder mask spraying automation system and method |
| CN111174362A (en) * | 2020-03-02 | 2020-05-19 | 郑州科技学院 | Textile air conditioner spraying system and constant-pressure variable-flow control method thereof |
| TWI834337B (en) * | 2021-10-26 | 2024-03-01 | 大陸商先進半導體材料（深圳）有限公司 | Constant pressure spray equipment, constant pressure spray methods and monitors |
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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: 20161207 Termination date: 20200622 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |