CN204667161U - The production line of circuit board control system of liquid equipment - Google Patents
The production line of circuit board control system of liquid equipment Download PDFInfo
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- CN204667161U CN204667161U CN201520365215.3U CN201520365215U CN204667161U CN 204667161 U CN204667161 U CN 204667161U CN 201520365215 U CN201520365215 U CN 201520365215U CN 204667161 U CN204667161 U CN 204667161U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a kind of control system of production line of circuit board liquid equipment, it is characterized in that, comprise testing agency; Described testing agency is used for the liquid inlet volume of detection line board assembly line liquid equipment, concurrently send detection signal; Control gear; Described control gear is for controlling the running of liquid supply equipment; Liquid supply equipment is used for production line of circuit board liquid equipment conveying liquid; Described control gear and UNICOM of described testing agency, for receiving described detection signal, and control the output power of described liquid supply equipment according to described detection signal.The control system of the production line of circuit board liquid equipment that the utility model provides, can each fluid volume with liquid equipment in detection line board assembly line in real time, and the liquid supply rate of liquid supply equipment is controlled according to the fluid volume of each liquid equipment, guarantee that the liquid inlet volume of each liquid equipment maintains stationary value, avoid the liquid inlet volume with liquid equipment of production line of circuit board higher than demand, avoid the waste causing industrial liquid.Avoid the liquid inlet volume with liquid equipment of production line of circuit board higher or lower than demand, can ensure, by the quality of wiring board in liquid equipment, to improve the quality of wiring board, improve product percent of pass.
Description
Technical field
The utility model relates to wiring board and manufactures field, the particularly control system of production line of circuit board use water device.
Background technology
Water is that manufacturing industry is rely the valuable source of sustainable development.Wiring board manufactures field and be unable to do without water especially, in the operations such as pre-treatment, development, etching, all needs other liquid directly using water or prepared by water, is referred to as industrial liquid.The consumption of industrial liquid often exceeds the theoretical amount of engineering design.One of major reason is large with hydraulic pressure fluctuation.Adopt a liquid supply equipment to each liquid equipment conveying liquid, if the fluid volume of a certain liquid equipment reduces, the feed flow total amount of liquid supply equipment is constant, and other liquid inlet volume with liquid equipment just can correspondingly raise, and causes waste.If the fluid volume of a certain liquid equipment raises suddenly, the feed flow total amount of liquid supply equipment is constant, and other liquid inlet volume with liquid equipment just can correspondingly decline.On the other hand, no matter other corresponding risings of liquid inlet volume with liquid equipment or decline, all can cause the quality abnormal of the wiring board in this use liquid equipment, very large negative effect is caused to the quality of product.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art, provides a kind of control system of production line of circuit board liquid equipment.
For realizing above object, the utility model is achieved through the following technical solutions:
The production line of circuit board control system of liquid equipment, is characterized in that, comprising:
Testing agency; Described testing agency is used for the liquid inlet volume of detection line board assembly line liquid equipment, concurrently send detection signal;
Control gear; Described control gear is for controlling the running of liquid supply equipment; Liquid supply equipment is used for production line of circuit board liquid equipment conveying liquid; Described control gear and UNICOM of described testing agency, for receiving described detection signal, and control the output power of described liquid supply equipment according to described detection signal.
Preferably, described testing agency comprises voltage sensitive sensor; Production line of circuit board liquid equipment is communicated with liquid supply equipment by woven hose; Described voltage sensitive sensor is for detecting the static energy of the liquid in woven hose.
Preferably, the number of described voltage sensitive sensor is one, and a described voltage sensitive sensor detects the static energy in the woven hose that is connected with each liquid equipment of production line of circuit board simultaneously; Or the number of described voltage sensitive sensor is multiple, each described voltage sensitive sensor detect one with the static energy in the woven hose be connected with liquid equipment of production line of circuit board.
Preferably, described control gear comprises programmable logic controller and frequency converter; Described detection signal, for receiving described detection signal, is converted into frequency signal, and sends frequency signal by described programmable logic controller (PLC); Described frequency converter for controlling the running of liquid supply equipment, and changes the output power size of liquid supply equipment according to the frequency signal that described programmable logic controller sends.
Preferably, a fluid volume with liquid equipment in production line of circuit board reduces, flow rate of liquid in the woven hose be communicated with it reduces, in pipe, static energy raises, the detection signal corresponding to the static energy in this woven hose detected is sent to programmable logic controller by voltage sensitive sensor, by programmable logic controller, detection signal is converted to frequency signal; Frequency signal is sent to frequency converter by programmable logic controller, and frequency converter reduces the output frequency of liquid supply equipment according to frequency signal, thus the liquid supply rate of liquid supply equipment is reduced, and makes other liquid inlet volumes with liquid equipment of production line of circuit board keep constant.
Preferably, a fluid volume with liquid equipment in production line of circuit board increases, flow rate of liquid in the woven hose be communicated with it raises, in pipe, static energy reduces, the detection signal corresponding to the static energy in the woven hose detected is sent to programmable logic controller by voltage sensitive sensor, by programmable logic controller, detection signal is converted to frequency signal; Frequency signal is sent to frequency converter by programmable logic controller, and frequency converter improves the output frequency of liquid supply equipment according to frequency signal, thus the liquid supply rate of liquid supply equipment is raised, and makes other liquid inlet volumes with liquid equipment of production line of circuit board keep constant.
Preferably, described liquid equipment is selected from pre-processing device, developing apparatus, electroplating device, etching machines or cleaning equipment.
Preferably, described liquid supply equipment is pump.More preferably, described liquid supply equipment is centrifugal pump.
Another object of the present utility model is to provide a kind of control method of production line of circuit board liquid equipment.
For realizing above object, the utility model is achieved through the following technical solutions:
The production line of circuit board control method of liquid equipment, is characterized in that, comprise step as follows:
A, according to formula Q+P
0/ ρ+u
0 2/ 2+gh
0=P
1/ ρ+u
1 2/ 2+gh
1+ ... + P
n/ ρ+u
n 2/ 2+gh
n-(1) calculates the value of Q; Wherein,
N is positive integer, represents the quantity with liquid equipment in production line of circuit board; ρ, g represent density, the acceleration of gravity of liquid respectively;
P
0, u
0, h
0represent the pressure of fluid supply place liquid, flow velocity, highly respectively;
P
0/ ρ, u
0 2/ 2, gh
0represent the static energy at fluid supply place, kinetic energy, potential energy respectively;
P
0/ ρ, u
0 2/ 2, gh
0summation represent the mechanical energy of fluid supply place liquid;
P
n, u
n, h
nrepresent the pressure of the liquid in a certain liquid equipment, flow velocity, highly respectively;
P
n/ ρ, u
n 2/ 2, gh
nrepresent static energy, kinetic energy, the potential energy of the liquid in a certain liquid equipment respectively;
P
n/ ρ, u
n 2/ 2, gh
nsummation represent the mechanical energy of the liquid in a certain liquid equipment;
Q be production line of circuit board in useful liquid equipment liquid mechanical energy sum with fluid supply place liquid machine can difference;
B, the liquid supply equipment selecting output power and Q value to adapt; By liquid supply equipment by the Liquid transfer at fluid supply place to each liquid equipment of production line of circuit board;
C, adopt the liquid inlet volume of each liquid equipment of described testing agency detection line board assembly line, concurrently send detection signal;
D, described control gear is adopted to control the running of liquid supply equipment; Described control gear and UNICOM of described testing agency, for receiving described detection signal, and control the output power of described liquid supply equipment according to described detection signal.
Preferably, described testing agency comprises voltage sensitive sensor; Each liquid equipment of production line of circuit board is communicated with liquid supply equipment respectively by a woven hose; Every root woven hose is all connected with described voltage sensitive sensor, is detected the static energy of the liquid in each woven hose by described voltage sensitive sensor.
Preferably, described control gear comprises programmable logic controller and frequency converter; Described detection signal, for receiving described detection signal, is converted into frequency signal, and sends frequency signal by described programmable logic controller (PLC); Described frequency converter for controlling the running of liquid supply equipment, and changes the output power size of liquid supply equipment according to the frequency signal that described programmable logic controller sends.
Preferably, a fluid volume with liquid equipment in production line of circuit board reduces, flow rate of liquid in the woven hose be communicated with it reduces, in pipe, static energy raises, the detection signal corresponding to the static energy in this woven hose detected is sent to programmable logic controller by voltage sensitive sensor, by programmable logic controller, detection signal is converted to frequency signal; Frequency signal is sent to frequency converter by programmable logic controller, and frequency converter reduces the output frequency of liquid supply equipment according to frequency signal, thus the liquid supply rate of liquid supply equipment is reduced, and makes other liquid inlet volumes with liquid equipment of production line of circuit board keep constant.
Preferably, a fluid volume with liquid equipment in production line of circuit board increases, flow rate of liquid in the woven hose be communicated with it raises, in pipe, static energy reduces, the detection signal corresponding to the static energy in the woven hose detected is sent to programmable logic controller by voltage sensitive sensor, by programmable logic controller, detection signal is converted to frequency signal; Frequency signal is sent to frequency converter by programmable logic controller, and frequency converter improves the output frequency of liquid supply equipment according to frequency signal, thus the liquid supply rate of liquid supply equipment is raised, and makes other liquid inlet volumes with liquid equipment of production line of circuit board keep constant.
Preferably, liquid supply equipment is centrifugal pump.
Preferably, arrange a described voltage sensitive sensor, described voltage sensitive sensor detects the static energy in the woven hose that is connected with each liquid equipment of production line of circuit board simultaneously; Or, multiple described voltage sensitive sensor is set, each described voltage sensitive sensor detect one with the static energy in the transfusion be connected with liquid equipment of production line of circuit board.
The control system of the production line of circuit board liquid equipment that the utility model provides and control method thereof, can each fluid volume with liquid equipment in detection line board assembly line in real time, and the liquid supply rate of liquid supply equipment is controlled according to each fluid volume with liquid equipment, guarantee that the liquid inlet volume of each liquid equipment maintains stationary value, avoid the liquid inlet volume with liquid equipment of production line of circuit board higher than demand, avoid the waste causing industrial liquid.Meanwhile, guarantee that the liquid inlet volume of each liquid equipment maintains stationary value, avoid the liquid inlet volume with liquid equipment of production line of circuit board higher or lower than demand, can ensure, by the quality of wiring board in liquid equipment, to improve the quality of wiring board, improve product percent of pass.
Accompanying drawing explanation
Fig. 1 is the structural representation of the control system of production line of circuit board liquid equipment in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
As shown in Figure 1, production line of circuit board comprises three and uses liquid equipment, is respectively first and uses liquid equipment 13 with liquid equipment 11, second liquid equipment 12 and the 3rd.Any one in pre-processing device, developing apparatus, electroplating device or etching machines can be selected from liquid equipment, the present embodiment is for developing apparatus, developing apparatus liquid used is developer solution, the liquid inlet volume of developer solution directly affects the stability of the solution level in developing apparatus, then has influence on development amount.Liquid supply equipment 2 carries liquid with liquid equipment 11, second liquid equipment 12 and the 3rd with liquid equipment 13 to first.Liquid supply equipment 2 can select centrifugal pump.Centrifugal pump one end is provided with the first woven hose 31, and woven hose 31 inserts in the liquid at fluid supply 01 place.The other end of centrifugal pump is provided with the second woven hose 32.Second woven hose 32 is provided with three branch's woven hoses, is respectively the 3rd woven hose 41, the 4th woven hose 42 and the 5th woven hose 43.3rd woven hose 41, the 4th woven hose 42 are communicated with liquid equipment 13 with the 3rd with liquid equipment 12 with liquid equipment 11, second with first respectively with the 5th woven hose 43.Centrifugal pump unlatching, is pumped into the liquid in fluid supply by the first woven hose 31, then is used in liquid equipment 13 by liquid input first liquid equipment 11, second liquid equipment 12 and the 3rd by the 3rd woven hose 41, the 4th woven hose 42 and the 5th woven hose 43.
The control system of production line of circuit board liquid equipment comprises testing agency and control gear.Testing agency is for detecting the liquid inlet volume of the first use liquid equipment 11, second liquid equipment 12 and the 3rd use liquid equipment 13, and the concurrent detection signal that send is to control gear.Wherein, testing agency comprises three voltage sensitive sensors, is respectively the first voltage sensitive sensor 51, second voltage sensitive sensor 52 and the 3rd voltage sensitive sensor 53.First voltage sensitive sensor 51, second voltage sensitive sensor 52 and the 3rd voltage sensitive sensor 53 detect the static energy in the 3rd woven hose 41, the 4th woven hose 42 and the 5th woven hose 43 respectively.Static energy in each branch woven hose is larger, and the flow rate of liquid namely represented in this branch's woven hose is less, and it is less with the inflow of liquid equipment that representative is communicated with this branch's woven hose.Otherwise the static energy in each branch woven hose is less, the flow rate of liquid namely represented in this branch's woven hose is larger, and it is larger with the inflow of liquid equipment that representative is communicated with this branch's woven hose.
Control gear, for controlling the running of liquid supply equipment 2, namely controls the running of motor in centrifugal pump.Control gear and UNICOM of testing agency, for receiving the detection signal that testing agency sends, and controlling the output power of liquid supply equipment 2 according to the detection signal that testing agency sends, namely controlling the output power of motor in centrifugal pump.Wherein control gear comprises programmable logic controller 6 and frequency converter 7.The detection signal that programmable logic controller (PLC) 6 sends for receiving voltage sensitive sensor, and detection signal is converted into frequency signal.Frequency converter 7 for controlling the power supply of motor in centrifugal pump, thus is controlled the output power of motor in centrifugal pump.Frequency converter 7 and programmable logic controller 6 UNICOM, change the size of the output power of motor in centrifugal pump, thus regulate the pump liquid measure of centrifugal pump according to the frequency signal of programmable logic controller 6 transmission.
The production line of circuit board control method of liquid equipment, comprises step as follows:
A, according to formula
Q+P
0/ ρ+u
02/2+gh
0=P
1/ ρ+u
1 2/ 2+gh
1+ P
2/ ρ+u
2 2/ 2+gh
2+ P
3/ ρ+u
3 2/ 2+gh
3-(1) calculates the value of Q;
Wherein, ρ, g represent density, the acceleration of gravity of liquid respectively;
P
0, u
0, h
0represent the pressure of fluid supply 01 place liquid, flow velocity, highly respectively;
P
0/ ρ, u
0 2/ 2, gh
0represent the static energy at fluid supply 01 place, kinetic energy, potential energy respectively;
P
0/ ρ+u
0 2/ 2+gh
0represent the mechanical energy of fluid supply 01 place liquid;
P
1, u
1, h
1represent first respectively with the pressure of the liquid in liquid equipment 11, flow velocity, highly;
P
1/ ρ, u
1 2/ 2, gh
1represent static energy, kinetic energy, potential energy that first uses the liquid in liquid equipment 11 respectively;
P
1/ ρ+u
1 2/ 2+gh
1represent the mechanical energy that first uses the liquid in liquid equipment 11;
In like manner, P
2/ ρ+u
2 2/ 2+gh
2represent the mechanical energy that second uses liquid in liquid equipment 12;
P
2/ ρ+u
2 2/ 2+gh
2represent the mechanical energy that the 3rd uses liquid in liquid equipment 13.
Q be production line of circuit board in useful liquid equipment liquid mechanical energy sum with fluid supply place liquid machine can difference.
B, the liquid supply equipment 2 selecting output power and Q value to adapt, use liquid equipment 13 to first of production line of circuit board with liquid equipment 11, second liquid equipment 12 and the 3rd by the Liquid transfer at fluid supply 01 place by liquid supply equipment 2.
C, adopt testing agency to detect first with liquid equipment 11, second liquid equipment 12 and the 3rd by the liquid inlet volume of liquid equipment 13, the concurrent detection signal that send is to control gear.Wherein, testing agency comprises three voltage sensitive sensors, is respectively the first voltage sensitive sensor 51, second voltage sensitive sensor 52 and the 3rd voltage sensitive sensor 53.First voltage sensitive sensor 51, second voltage sensitive sensor 52 and the 3rd voltage sensitive sensor 53 detect the static energy in the 3rd woven hose 41, the 4th woven hose 42 and the 5th woven hose 43 respectively.Static energy in each branch woven hose is larger, and the flow rate of liquid namely represented in this branch's woven hose is less, and it is less with the inflow of liquid equipment that representative is communicated with this branch's woven hose.Otherwise the static energy in each branch woven hose is less, the flow rate of liquid namely represented in this branch's woven hose is larger, and it is larger with the inflow of liquid equipment that representative is communicated with this branch's woven hose.
D, employing control gear control the running of liquid supply equipment 2, namely control the running of motor in centrifugal pump.Control gear and UNICOM of testing agency, for receiving the detection signal that testing agency sends, and controlling the output power of liquid supply equipment 2 according to the detection signal that testing agency sends, namely controlling the output power of motor in centrifugal pump.Wherein control gear comprises programmable logic controller 6 and frequency converter 7.The detection signal that programmable logic controller (PLC) 6 sends for receiving voltage sensitive sensor, and detection signal is converted into frequency signal.Frequency converter 7 is for being controlled the output power of motor in centrifugal pump.Frequency converter 7 and programmable logic controller 6 UNICOM, change the size of the output power of motor in centrifugal pump, thus regulate the pump liquid measure of centrifugal pump according to the frequency signal of programmable logic controller 6 transmission.
When first reduces by the fluid volume of liquid equipment 11, flow rate of liquid in 3rd woven hose 41 reduces, in pipe, static energy raises, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the first voltage sensitive sensor 51, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, frequency converter 7 reduces the output frequency of motor in centrifugal pump according to frequency signal, thus reduce the pump liquid measure of centrifugal pump, avoid second of production line of circuit board to raise by the liquid inlet volume of liquid equipment 13 with liquid equipment 12 and the 3rd.Avoid the waste causing industrial liquid.Simultaneously, guarantee that second keeps constant with liquid equipment 12 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume rising of liquid equipment 13 to increase by the development amount of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee the development precision of the second use liquid equipment 12 and the 3rd use liquid equipment 13, guarantee that the quality of wiring board is normal.
When second raises suddenly by the fluid volume of liquid equipment 12, flow rate of liquid in 4th woven hose 42 raises, in pipe, static energy reduces, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the second voltage sensitive sensor 52, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, and frequency converter 7 raises the output frequency of motor in centrifugal pump according to frequency signal, thus raises the pump liquid measure of centrifugal pump.Guarantee that first keeps constant with liquid equipment 11 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume reduction of liquid equipment 13 to reduce by the development amount of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee the development precision of the second use liquid equipment 12 and the 3rd use liquid equipment 13, guarantee that the quality of wiring board is normal.
When comparatively large according to the Q value calculated in step a, cannot by an existing liquid supply equipment by the Liquid transfer at fluid supply place to each liquid equipment time, the quantity of liquid supply equipment can be increased.Frequency converter 7 can control the running of each liquid supply equipment.
The utility model also can adopt a voltage sensitive sensor to detect fluid pressure energy in the 3rd woven hose 41, the 4th woven hose 42 and the 5th woven hose 43 simultaneously, and the technique effect reached is identical.
If be etching machines with liquid equipment, etching machines liquid used is etching solution, and the liquid inlet volume of etching solution directly affects the stability of the etchant concentration in etching machines, etch quantity then.When first reduces by the fluid volume of liquid equipment 11, flow rate of liquid in 3rd woven hose 41 reduces, in pipe, static energy raises, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the first voltage sensitive sensor 51, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, frequency converter 7 reduces the output frequency of motor in centrifugal pump according to frequency signal, thus reduce the pump liquid measure of centrifugal pump, avoid second of production line of circuit board to raise by the liquid inlet volume of liquid equipment 13 with liquid equipment 12 and the 3rd.Avoid the waste causing industrial liquid.Simultaneously, guarantee that second keeps constant with liquid equipment 12 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume rising of liquid equipment 13 to increase with the etch quantity of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that second stablizes by the etch capabilities of liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that the quality of wiring board is normal.
When second raises suddenly by the fluid volume of liquid equipment 12, flow rate of liquid in 4th woven hose 42 raises, in pipe, static energy reduces, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the second voltage sensitive sensor 52, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, and frequency converter 7 raises the output frequency of motor in centrifugal pump according to frequency signal, thus raises the pump liquid measure of centrifugal pump.Guarantee that first keeps constant with liquid equipment 11 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume reduction of liquid equipment 13 to reduce with the etch quantity of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that second stablizes by the etch capabilities of liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that the quality of wiring board is normal.
If be electroplating device with liquid equipment, electroplating device liquid used is electroplate liquid, and the liquid inlet volume of electroplate liquid directly affects coating quality.When first reduces by the fluid volume of liquid equipment 11, flow rate of liquid in 3rd woven hose 41 reduces, in pipe, static energy raises, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the first voltage sensitive sensor 51, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, frequency converter 7 reduces the output frequency of motor in centrifugal pump according to frequency signal, thus reduce the pump liquid measure of centrifugal pump, avoid second of production line of circuit board to raise by the liquid inlet volume of liquid equipment 13 with liquid equipment 12 and the 3rd.Avoid the waste causing industrial liquid.Simultaneously, guarantee that second keeps constant with liquid equipment 12 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume rising of liquid equipment 13 to increase by the plating amount of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that second keeps stable with liquid equipment 12 and the 3rd with the coating quality of liquid equipment 13, guarantee that the quality of wiring board is normal.
When second raises suddenly by the fluid volume of liquid equipment 12, flow rate of liquid in 4th woven hose 42 raises, in pipe, static energy reduces, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the second voltage sensitive sensor 52, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, and frequency converter 7 raises the output frequency of motor in centrifugal pump according to frequency signal, thus raises the pump liquid measure of centrifugal pump.Guarantee that first keeps constant with liquid equipment 11 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume reduction of liquid equipment 13 to reduce by the plating amount of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that second keeps stable with liquid equipment 12 and the 3rd with the coating quality of liquid equipment 13, guarantee that the quality of wiring board is normal.
If be pre-processing device with liquid equipment, pre-processing device liquid used is pretreatment liquid, and the liquid inlet volume of pretreatment liquid directly affects stings erosion amount.When first reduces by the fluid volume of liquid equipment 11, flow rate of liquid in 3rd woven hose 41 reduces, in pipe, static energy raises, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the first voltage sensitive sensor 51, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, frequency converter 7 reduces the output frequency of motor in centrifugal pump according to frequency signal, thus reduce the pump liquid measure of centrifugal pump, avoid second of production line of circuit board to raise by the liquid inlet volume of liquid equipment 13 with liquid equipment 12 and the 3rd.Avoid the waste causing industrial liquid.Simultaneously, guarantee that second keeps constant with liquid equipment 12 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume rising of liquid equipment 13 to increase by the erosion amount of stinging of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that second keeps stable with liquid equipment 12 and the 3rd by the erosion amount of stinging of liquid equipment 13, guarantee that copper on wiring board is thick to meet the demands, guarantee that the quality of wiring board is normal.
When second raises suddenly by the fluid volume of liquid equipment 12, flow rate of liquid in 4th woven hose 42 raises, in pipe, static energy reduces, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the second voltage sensitive sensor 52, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, and frequency converter 7 raises the output frequency of motor in centrifugal pump according to frequency signal, thus raises the pump liquid measure of centrifugal pump.Guarantee that first keeps constant with liquid equipment 11 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to result through second with liquid equipment 12 and the 3rd with the liquid inlet volume reduction of liquid equipment 13 to reduce by the erosion amount of stinging of the wiring board in liquid equipment 13 with liquid equipment 12 and the 3rd, guarantee that second keeps stable with liquid equipment 12 and the 3rd by the erosion amount of stinging of liquid equipment 13, guarantee that copper on wiring board is thick to meet the demands, guarantee that the quality of wiring board is normal.
If be cleaning equipment with liquid equipment, cleaning equipment liquid used is cleaning fluid, and the liquid inlet volume of cleaning fluid directly affects cleaning performance.When first reduces by the fluid volume of liquid equipment 11, flow rate of liquid in 3rd woven hose 41 reduces, in pipe, static energy raises, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the first voltage sensitive sensor 51, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, frequency converter 7 reduces the output frequency of motor in centrifugal pump according to frequency signal, thus reduce the pump liquid measure of centrifugal pump, avoid second of production line of circuit board to raise by the liquid inlet volume of liquid equipment 13 with liquid equipment 12 and the 3rd.Avoid the waste causing industrial liquid.Meanwhile, guarantee that second keeps constant with liquid equipment 12 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to cause second with liquid equipment 12 and the 3rd wasting with liquid with liquid equipment 13 with liquid equipment 12 and the 3rd with the liquid inlet volume rising of liquid equipment 13.
When second raises suddenly by the fluid volume of liquid equipment 12, flow rate of liquid in 4th woven hose 42 raises, in pipe, static energy reduces, the detection signal of the corresponding static energy detected is sent to programmable logic controller 6 by the second voltage sensitive sensor 52, is calculated be converted to frequency signal by programmable logic controller 6.Frequency signal is sent to frequency converter 7 by programmable logic controller 6, and frequency converter 7 raises the output frequency of motor in centrifugal pump according to frequency signal, thus raises the pump liquid measure of centrifugal pump.Guarantee that first keeps constant with liquid equipment 11 and the 3rd by the liquid inlet volume of liquid equipment 13, avoid second to cause second to reduce with liquid equipment 12 and the 3rd with liquid equipment 13 cleansing power, decline to the cleaning performance of the wiring board passed through with liquid equipment 12 and the 3rd with the liquid inlet volume reduction of liquid equipment 13, thus after avoiding the wiring board do not cleaned up to flow into next process, next process is polluted.
Embodiment in the utility model, only for being described the utility model, does not form the restriction to right, other equivalent in fact substituting, all in the utility model protection domain that those skilled in that art can expect.
Claims (8)
1. the production line of circuit board control system of liquid equipment, is characterized in that, comprising:
Testing agency; Described testing agency is used for the liquid inlet volume of detection line board assembly line liquid equipment, concurrently send detection signal;
Control gear; Described control gear is for controlling the running of liquid supply equipment; Liquid supply equipment is used for production line of circuit board liquid equipment conveying liquid; Described control gear and UNICOM of described testing agency, for receiving described detection signal, and control the output power of described liquid supply equipment according to described detection signal.
2. the control system of production line of circuit board liquid equipment according to claim 1, it is characterized in that, described testing agency comprises voltage sensitive sensor; Production line of circuit board liquid equipment is communicated with liquid supply equipment by woven hose; Described voltage sensitive sensor is for detecting the static energy of the liquid in woven hose.
3. the control system of production line of circuit board liquid equipment according to claim 2, it is characterized in that, the number of described voltage sensitive sensor is one, and a described voltage sensitive sensor detects the static energy in the woven hose that is connected with each liquid equipment of production line of circuit board simultaneously; Or the number of described voltage sensitive sensor is multiple, each described voltage sensitive sensor detect one with the static energy in the woven hose be connected with liquid equipment of production line of circuit board.
4. the control system of production line of circuit board liquid equipment according to claim 1, it is characterized in that, described control gear comprises programmable logic controller and frequency converter; Described detection signal, for receiving described detection signal, is converted into frequency signal, and sends frequency signal by described programmable logic controller (PLC); Described frequency converter for controlling the running of liquid supply equipment, and changes the output power size of liquid supply equipment according to the frequency signal that described programmable logic controller sends.
5. the control system of production line of circuit board liquid equipment according to claim 4, it is characterized in that, a fluid volume with liquid equipment in production line of circuit board reduces, flow rate of liquid in the woven hose be communicated with it reduces, in pipe, static energy raises, the detection signal corresponding to the static energy in this woven hose detected is sent to programmable logic controller by voltage sensitive sensor, by programmable logic controller, detection signal is converted to frequency signal; Frequency signal is sent to frequency converter by programmable logic controller, and frequency converter reduces the output frequency of liquid supply equipment according to frequency signal, thus the liquid supply rate of liquid supply equipment is reduced, and makes other liquid inlet volumes with liquid equipment of production line of circuit board keep constant.
6. the control system of production line of circuit board liquid equipment according to claim 4, it is characterized in that, a fluid volume with liquid equipment in production line of circuit board increases, flow rate of liquid in the woven hose be communicated with it raises, in pipe, static energy reduces, the detection signal corresponding to the static energy in the woven hose detected is sent to programmable logic controller by voltage sensitive sensor, by programmable logic controller, detection signal is converted to frequency signal; Frequency signal is sent to frequency converter by programmable logic controller, and frequency converter improves the output frequency of liquid supply equipment according to frequency signal, thus the liquid supply rate of liquid supply equipment is raised, and makes other liquid inlet volumes with liquid equipment of production line of circuit board keep constant.
7. the control system of production line of circuit board liquid equipment according to claim 1, is characterized in that, described liquid equipment is selected from pre-processing device, developing apparatus, electroplating device, etching machines or cleaning equipment.
8. the control system of production line of circuit board liquid equipment according to claim 1, is characterized in that, described liquid supply equipment is pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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