CN107866448A - A kind of centering control system - Google Patents
A kind of centering control system Download PDFInfo
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- CN107866448A CN107866448A CN201711058439.XA CN201711058439A CN107866448A CN 107866448 A CN107866448 A CN 107866448A CN 201711058439 A CN201711058439 A CN 201711058439A CN 107866448 A CN107866448 A CN 107866448A
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- resistance
- operational amplifier
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- inverting input
- triode
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
- B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
- G05D3/14—Control of position or direction using feedback using an analogue comparing device
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Abstract
The present invention discloses a kind of centering control system, it includes emitter circuit, reception device circuit, signal processing circuit and driving circuit of servo valve, the signal output received is arranged and signal is fed back into driving circuit of servo valve by emitter circuit output transmission signal to reception device circuit signal input, reception device circuit into signal processing circuit.The present invention is simple in construction, easy to operate, and response is fast, and effect is good, and precision is high, continuous closed-loop regulating system, can be good at realizing centering, deviation-correcting function, and be effectively reduced equipment cost.
Description
Technical field
The invention belongs to non-ferrous metal technical field, more particularly, to a kind of opening for non-ferrous metal plate band production line
Volume, the centering control system of coiling machine.
Background technology
At present, industrial enterprise band is produced or process in, it is necessary to which the accurate unbiased of band is sent into lower road
In technique unit, the process is controlled by correction center support system and completed, with the rapid development of industry, to automation in Industry Control
It is required that increasingly improving, in order to improve the quality of production of product and output capacity, industrial production line detection and control system are proposed
Higher requirement, it is necessary to which accuracy of detection is high, and response is fast, and stability is good, strong antijamming capability；However, these requirements are realized, just
Must there will be higher requirement to all parts of system, to complete the high efficiency of actual production, it is ensured that product quality.It is existing
In technology, North America or EMG center support systems are used mostly, but cost is higher, control is complicated.
The content of the invention
To solve the above problems, respond centering control system fast, that precision is high it is an object of the invention to provide a kind of.
For achieving the above object, the present invention adopts the following technical scheme that：
A kind of centering control system, it includes emitter circuit, reception device circuit, signal processing circuit and servo valve driving
Circuit, the signal processing circuit include operational amplifier IC9, operational amplifier IC10, operational amplifier IC11, operation amplifier
Device IC12, operational amplifier IC13, operational amplifier IC9 inverting input are connected to slide-wire rheostat W5's by resistance R41
Centre tap, slide-wire rheostat W5 both ends connect positive and negative power supply respectively, in-phase input end ground connection, inverting input and output end it
Between be connected to resistance R43, output is connected to slide-wire rheostat W6 one end, slide-wire rheostat W6 other ends ground connection, and centre tap passes through
Resistance R44 is connected to operational amplifier IC10 inverting input；Operational amplifier IC10 in-phase input end ground connection, anti-phase input
End the resistance R45 and electric capacity C9 in parallel with being connected between output end, output end are anti-by resistance R46 and operational amplifier IC11's
Phase input is connected；Operational amplifier IC11 in-phase input end ground connection, is connected to what is connected between inverting input and output end
Resistance R47 and slide-wire rheostat W7, output end are connected by resistance R48 with operational amplifier IC12 inverting input；Computing
Amplifier IC12 in-phase input end ground connection, is connected to resistance R49 between inverting input and output end, output end is shown with level
Device IC13 signal input part connection；Lever indicator IC13 luminous tube maximum brightness setting end, reference voltage output end lead to
Cross resistance R50 to be connected with slide-wire rheostat W8 one end, slide-wire rheostat W8 other ends ground connection, centre tap and lever indicator
IC13 reference voltage setting end connection, lever indicator IC13 luminous tube negative pole end respectively by light emitting diode D26~
D33 is connected to power supply VCC2.
Described centering control system, its emitter circuit are made up of oscillating circuit and transmission signal circuit, vibration electricity
Road includes multivibrator IC1, the first operational amplifier IC2 and the second operational amplifier IC3, multivibrator IC1 voltage
Input termination power VCC1 is simultaneously connected with slide-wire rheostat W1 one end and centre tap, slide-wire rheostat W1 another termination electricity
R1 is hindered, and multivibrator IC1 threshold is connect by the resistance R1 of series connection, resistance R2, slide-wire rheostat 2 and backward dioded D2
End, multivibrator IC1 triggering input are connected with threshold end and are grounded by electric capacity C1, and control terminal is connect by electric capacity C2
Ground, the common port for the terminating resistor R1 and resistance R2 that discharges simultaneously are connect multivibrator IC1 threshold end by diode D1, exported
Terminate slide-wire rheostat W3 and slide-wire rheostat W4 one end, slide-wire rheostat W3, slide-wire rheostat W4 other end ground connection；It is sliding
Line rheostat W3, slide-wire rheostat W4 centre tap are respectively by the way that resistance R3 and resistance R7 meet operational amplifier IC2, computing is put
Big device IC3 in-phase input end, is connected to resistance R4 between inverting input and output end；Operational amplifier IC2 output end is led to
The base stage that resistance R5 is crossed with triode Q1 is connected, and triode Q1 colelctor electrode meets power supply VCC1, and emitter stage is connect by diode D3
Base stage is simultaneously grounded by light emitting diode D4, resistance R6；Electricity is connected between operational amplifier IC3 inverting input and output end
R8 is hindered, operational amplifier IC3 output end is connected by resistance R9 with triode Q2 base stage, and triode Q2 colelctor electrode connects electricity
Source VCC1, emitter stage connect base stage by diode D5 and are grounded by light emitting diode D6 and resistance R10；Triode Q1, three poles
Pipe Q2 emitter stage is connected with transmission signal circuit.
Further, in above-mentioned emitter circuit, its transmission signal circuit include the binding post J1 that is connected and
Two groups of Light-Emitting Diode groups, every group of Light-Emitting Diode group are made up of multiple Light-Emitting Diodes in parallel, triode Q1 emitter stage
The signal FS1 of output is grounded by first group of Light-Emitting Diode in parallel, and the signal FS2 of triode Q2 emitter stage output passes through
Multigroup Light-Emitting Diode ground connection in parallel, each Light-Emitting Diode are serially connected with current-limiting resistance.
Described centering control system, its reception device circuit include three terminal regulator IC4, infrared receiving tube Q3 and computing
Amplifier IC5, three terminal regulator IC4 control source termination power supply VCC1, common ground end ground connection, voltage output termination are infrared
Reception pipe Q3 colelctor electrode is simultaneously grounded by electric capacity C3, and infrared receiving tube Q3 emitter stage is grounded by resistance R27 and passes through electricity
Resistance R28 and electric capacity C5 connects operational amplifier IC5 inverting input, resistance R28 and electric capacity C5 common port by electric capacity C4 with
Operational amplifier IC5 output end is connected and is grounded by resistance R29 and resistance R30, operational amplifier IC5 inverting input
Resistance R31 is connected between output end, in-phase input end is grounded by resistance R32；Operational amplifier IC5 output end passes through electricity
Resistance R33 is connected with operational amplifier IC6 inverting input, operational amplifier IC6 in-phase input end ground connection, inverting input
Resistance R34 is connected between output end, inverting input is connected to the public of diode D25 and resistance R36 by diode D24
End, be connected to operational amplifier IC7 inverting input by resistance R36, the electric capacity C6 of parallel connection, output end by diode D25,
Resistance R36 is connected with operational amplifier IC7 inverting input；Operational amplifier IC7 in-phase input end is connect by resistance R38
Ground, is connected to resistance R37 and electric capacity C7 in parallel between inverting input and output end, output end is put by resistance R39 with computing
Big device IC8 inverting input is connected；Operational amplifier IC8 in-phase input end is grounded by resistance R41, inverting input with
Resistance R40, the electric capacity C8 of parallel connection are connected between output end, output end is connected with the signal processing circuit.
Described centering control system, its driving circuit of servo valve include operational amplifier IC14, operational amplifier IC15,
Operational amplifier IC16, servo valve control switch S1, triode Q4 and triode Q5, signal L is moved to left, signal R is moved to right and leads to respectively
The reverse input end that resistance R52 and R53 meet operational amplifier IC15 is crossed, reverse input end also connects slip variable resistance by resistance R51
Device W9 centre tap, slide-wire rheostat W9 mono- terminate-VCC1, other end ground connection, operational amplifier IC15 in-phase input end
Ground connection, is connected to resistance R58 between inverting input and output end；The drive signal CTRL of the signal processing circuit output passes through
Resistance R54 connects operational amplifier IC14 inverting input, operational amplifier IC14 in-phase input end ground connection, inverting input
Resistance R55 is connected between output end, output end connects operational amplifier IC15 inverting input by resistance R56；Computing is put
Big device IC15 output end connects operational amplifier IC16 inverting input, operational amplifier IC16 same phase by resistance R59
Input is grounded by resistance R64, and electric capacity C10 in parallel, servo valve control switch are connected between inverting input and output end
S1, servo valve control switch S1 input contact sets are connected to resistance R60, resistance R61, resistance R62, resistance R63；Computing
Amplifier IC16 output end is connected to triode Q4, triode Q5 base stage, triode Q4 by resistance R65, resistance R67 respectively
Colelctor electrode meet VCC1, resistance R66 is connected between base stage and colelctor electrode, triode Q5 colelctor electrode connects-VCC1, base stage and current collection
Be connected to resistance R68 between pole, triode Q4, triode Q5 emitter stage meet CTRLV+, CTRLV- by the resistance R69 of parallel connection and
Resistance R70 is grounded.
In the circuit of the present invention, VCC1 is+15V, and-VCC1 is -15V, and VCC2 is+5V ,+15V used, -15V and 0V
Power supply is supplied by external power source module, and+5V power supplys are obtained by voltage-stabilized power supply.
Due to using technical scheme as described above, the present invention has following superiority：
The centering control system, its is simple in construction, easy to operate, and response is fast, and effect is good, and precision is high, continuous closed loop regulation system
System, can be good at realizing centering, deviation-correcting function, and be effectively reduced equipment cost, be widely used in cold rolling, finishing（Draw
Rectify, rewinding）Line, and system is related to face also including steel industry etc. using non-ferrous metals processing industry itself is not limited to
Other numerous industries, demand are very big.
Brief description of the drawings
Fig. 1 is the system block diagram of centering control system of the present invention；
Fig. 2 is the schematic diagram of the oscillating circuit of the emitter circuit in Fig. 1；
Fig. 3 is the schematic diagram of the transmission signal circuit of the emitter circuit in Fig. 1；
Fig. 4 is the schematic diagram of the Part I of the reception device circuit in Fig. 1；
Fig. 5 is the schematic diagram of the Part II of the reception device circuit in Fig. 1；
Fig. 6 is the schematic diagram of the signal processing circuit in Fig. 1；
Fig. 7 is the schematic diagram of the driving circuit of servo valve in Fig. 1.
Embodiment
Technical scheme is described in further detail with reference to the accompanying drawings and examples.
As shown in Fig. 1~7, the centering control system, it includes emitter circuit, reception device circuit, signal transacting
Circuit and driving circuit of servo valve, emitter circuit output transmission signal to reception device circuit signal input, receive dress
The signal output received is arranged and signal is fed back into driving circuit of servo valve by circuits into signal processing circuit；
The signal processing circuit includes operational amplifier IC9, operational amplifier IC10, operational amplifier IC11, operational amplifier
IC12, operational amplifier IC13, operational amplifier IC9 inverting input（2 pin）Slide-wire rheostat W5 is connected to by resistance R41
Centre tap, slide-wire rheostat W5 both ends meet positive and negative power supply VCC1 respectively（+15V）、-VCC1（-15V）, operational amplifier
IC9 negative power end（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect power supply VCC1, in-phase input end（3 pin）Ground connection is anti-phase defeated
Enter end（2 pin）With output end（6 pin）Between be connected to resistance R43, output end（6 pin）Slide-wire rheostat W6 one end is connected to, slip becomes
Device W6 other ends ground connection is hindered, centre tap is connected to operational amplifier IC10 inverting input by resistance R44（2 pin）；Computing
Amplifier IC10 negative power end（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect power supply VCC1, in-phase input end（3 pin）Ground connection,
Inverting input（2 pin）With output end（6 pin）Between be connected to parallel connection resistance R45 and electric capacity C9, output end（6 pin）Pass through resistance
R46 and operational amplifier IC11 inverting input（2 pin）It is connected；Operational amplifier IC11 negative power end（4 pin）Connect-
VCC1, positive power source terminal（7 pin）Connect power supply VCC1, in-phase input end（3 pin）Ground connection, inverting input（2 pin）With output end（6 pin）
Between be connected to the resistance R47 and slide-wire rheostat W7 of series connection, output end（6 pin）Pass through resistance R48's and operational amplifier IC12
Inverting input（2 pin）It is connected；Operational amplifier IC12 negative power end（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect power supply
VCC1, in-phase input end（3 pin）Ground connection, inverting input（2 pin）With output end（6 pin）Between be connected to resistance R49, output end（6
Pin）With lever indicator IC13 signal input part（5 pin）Connection；Lever indicator IC13 positive power source terminal（3 pin）, pattern sets
Fixed end（9 pin）Connect power supply VCC2（+5V）, earth terminal（2 pin）, luminous tube minimum brightness setting end（4 pin）Ground connection, luminous tube is most
High brightness sets end（6 pin）, reference voltage output end（7 pin）It is connected by resistance R50 with slide-wire rheostat W8 one end, slip becomes
Hinder device W8 other ends ground connection, the reference voltage setting end of centre tap and lever indicator IC13（8 pin）Connection, lever indicator
IC13 luminous tube negative pole end（Pin 1, pin 10~18）Power supply VCC2 is connected to by light emitting diode D26~D33 respectively.
Above-mentioned emitter circuit is made up of oscillating circuit and transmission signal circuit, and oscillating circuit includes multivibrator
IC1, the first operational amplifier IC2 and the second operational amplifier IC3, multivibrator IC1 reset terminal（4 pin）, control source
End（8 pin）Meet power supply VCC1（+15V）And be connected with slide-wire rheostat W1 one end and centre tap, slide-wire rheostat W1's is another
One terminating resistor R1, and multivibrator is connect by the resistance R1 of series connection, resistance R2, slide-wire rheostat 2 and backward dioded D2
IC1 threshold end（6 pin）, multivibrator IC1 triggering input（2 pin）With threshold end（6 pin）It is connected and passes through electric capacity
C1 is grounded, control terminal（5 pin）It is grounded by electric capacity C2, discharge end（7 pin）Connecting resistance R1 and resistance R2 common port simultaneously pass through two
Pole pipe D1 connects multivibrator IC1 threshold end（6 pin）, output end（3 pin）Connect slide-wire rheostat W3's and slide-wire rheostat W4
One end, slide-wire rheostat W3, slide-wire rheostat W4 other end ground connection；Slide-wire rheostat W3, slide-wire rheostat W4 centre are taken out
Head connects operational amplifier IC2, operational amplifier IC3 in-phase input end by resistance R3 and resistance R7 respectively（3 pin）, computing puts
Big device IC2 negative power end（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect VCC1, inverting input（2 pin）With output end（6
Pin）Between be connected to resistance R4；Operational amplifier IC2 output end（6 pin）It is connected by resistance R5 with triode Q1 base stage, three
Pole pipe Q1 colelctor electrode meets power supply VCC1（+15V）, emitter stage connects base stage and by light emitting diode D4, electricity by diode D3
Hinder R6 ground connection；Operational amplifier IC3 negative power end（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect VCC1, inverting input（2
Pin）With output end（6 pin）Between be connected to resistance R8, operational amplifier IC3 output end（6 pin）Pass through resistance R9 and triode Q2
Base stage be connected, triode Q2 colelctor electrode meets power supply VCC1, and emitter stage connects base stage by diode D5 and passes through light-emitting diodes
Pipe D6 and resistance R10 ground connection；Triode Q1, triode Q2 emitter stage are connected with transmission signal circuit.
Further, in above-mentioned emitter circuit, its transmission signal circuit include the binding post J1 that is connected and
Two groups of Light-Emitting Diode groups, every group of Light-Emitting Diode group are made up of multiple Light-Emitting Diodes in parallel, triode Q1 emitter stage
The signal FS1 of output is grounded by first group of Light-Emitting Diode in parallel, and the signal FS2 of triode Q2 emitter stage output passes through
Multigroup Light-Emitting Diode ground connection in parallel, each Light-Emitting Diode are serially connected with current-limiting resistance.
Above-mentioned reception device circuit includes three terminal regulator IC4, infrared receiving tube Q3 and operational amplifier IC5, three ends
Voltage-stablizer IC4 voltage input end（1 pin）Meet power supply VCC1（+15V）, common ground end（2 pin）Ground connection, voltage output end（3
Pin）Connect infrared receiving tube Q3 colelctor electrode and be grounded by electric capacity C3, infrared receiving tube Q3 emitter stage is grounded by resistance R27
And operational amplifier IC5 inverting input is connect by resistance R28 and electric capacity C5（2 pin）, resistance R28 and electric capacity C5 common port
Pass through electric capacity C4 and operational amplifier IC5 output end（6 pin）It is connected and is grounded by resistance R29 and resistance R30, operation amplifier
Device IC5 inverting input（2 pin）With output end（6 pin）Between be connected to resistance R31, negative power end（4 pin）Meet-VCC1（-
15V）, positive power source terminal（7 pin）Connect power supply VCC1, in-phase input end（3 pin）It is grounded by resistance R32；Operational amplifier IC5's is defeated
Go out end（6 pin）Pass through resistance R33 and operational amplifier IC6 inverting input（2 pin）It is connected, operational amplifier IC6 negative electricity
Source（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect power supply VCC1, in-phase input end（3 pin）Ground connection, inverting input（2 pin）
With output end（6 pin）Between be connected to resistance R34, inverting input（2 pin）Diode D25 and resistance are connected to by diode D24
R36 common port, operational amplifier IC7 inverting input is connected to by resistance R36, the electric capacity C6 of parallel connection（2 pin）, output end
（6 pin）Pass through diode D25, resistance R36 and operational amplifier IC7 inverting input（2 pin）It is connected；Operational amplifier IC7
Negative power end（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect power supply VCC1, in-phase input end（3 pin）Connect by resistance R38
Ground, inverting input（2 pin）With output end（6 pin）Between be connected to parallel connection resistance R37 and electric capacity C7, output end（6 pin）Pass through
Resistance R39 and operational amplifier IC8 inverting input（2 pin）It is connected；Operational amplifier IC8 negative power end（4 pin）Connect-
VCC1, positive power source terminal（7 pin）Connect power supply VCC1, in-phase input end（3 pin）It is grounded by resistance R41, inverting input（2 pin）With
Output end（6 pin）Between be connected to parallel connection resistance R40, electric capacity C8, output end（6 pin）Computing with the signal processing circuit is put
Big device IC9 connections.
Above-mentioned driving circuit of servo valve, it includes operational amplifier IC14, operational amplifier IC15, operational amplifier
IC16, servo valve control switch S1, triode Q4 and triode Q5, move to left signal L, move to right signal R respectively by resistance R52 and
R53 connects operational amplifier IC15 reverse input end（2 pin）, reverse input end also connects slide-wire rheostat W9's by resistance R51
Centre tap, slide-wire rheostat W9 mono- terminate-VCC1（-15V）, the other end ground connection, operational amplifier IC15 negative power end（4
Pin）Connect-VCC1, positive power source terminal（7 pin）Meet power supply VCC1（+15V）, in-phase input end（3 pin）Ground connection, inverting input（2 pin）
With output end（6 pin）Between be connected to resistance R58；Output end of the signal processing circuit through operational amplifier IC10（6 pin）It is defeated
The drive signal CTRL gone out respectively by resistance R54, resistance R57 connect operational amplifier IC14, operational amplifier IC15 it is anti-phase
Input（2 pin）, operational amplifier IC14 negative power end（4 pin）Connect-VCC1, positive power source terminal（7 pin）Connect power supply VCC1, same to phase
Input（3 pin）Ground connection, inverting input（2 pin）With output end（6 pin）Between be connected to resistance R55, output end（6 pin）Pass through electricity
Resistance R56 connects operational amplifier IC15 inverting input（2 pin）；Operational amplifier IC15 output end（6 pin）Pass through resistance R59
Connect operational amplifier IC16 inverting input（2 pin）, operational amplifier IC16 negative power end（4 pin）Connect-VCC1, positive supply
End（7 pin）Connect power supply VCC1, in-phase input end（3 pin）It is grounded by resistance R64, inverting input（2 pin）With output end（6 pin）
Between be connected to parallel connection electric capacity C10, servo valve control switch S1, servo valve control switch S1 input contact sets be connected to
Resistance R60, resistance R61, resistance R62, resistance R63；Operational amplifier IC16 output end（6 pin）Pass through resistance R65, electricity respectively
Resistance R67 is connected to triode Q4, triode Q5 base stage, and triode Q4 colelctor electrode meets VCC1, is connected between base stage and colelctor electrode
Resistance R66, triode Q5 colelctor electrode meet-VCC1, and resistance R68, triode Q4, triode Q5 are connected between base stage and colelctor electrode
Emitter stage meet CTRLV+, CTRLV- passes through resistance R69 in parallel and resistance R70 ground connection.
In the circuit of the present invention, VCC1 is+15V, and-VCC1 is -15V, and VCC2 is+5V ,+15V used, -15V and 0V
Power supply is supplied by external power source module, and+5V power supplys are obtained by voltage-stabilized power supply.
In the present invention, multivibrator IC1 model NE555, operational amplifier IC2, operational amplifier IC3, computing are put
Big device IC5, operational amplifier IC6, operational amplifier IC7, operational amplifier IC8, operational amplifier IC9, operational amplifier
IC10, operational amplifier IC11, operational amplifier IC12, operational amplifier IC14, operational amplifier IC15, operational amplifier
IC16 models are OP07, three terminal regulator IC4 models 7805, infrared receiving tube Q3 model pt333-3b, and level is shown
Device IC13 models LM3914；Triode Q1, triode Q2, infrared receiving tube Q3, triode Q4 are NPN type, and triode Q5 is
Positive-negative-positive.
The present invention adjusts the slip variable resistance in the oscillating circuit of emitter circuit first using preceding needing to be debugged
Device W3 and slide-wire rheostat W4, measurement output point FS1 and FS2 voltage, makes it export 6V or so, 1KHz square-wave signal；
FS1 and FS2 voltage signal access transmission signal circuit.Infrared receiving tube Q3 in reception device circuit receives next spontaneous
The invisible infrared light of injection device circuit, the voltage signal of JUN points is measured, is sine wave, when expelling plate is unobstructed, measurement letter
Number value is 6.8V；When expelling plate blocks half, measurement signal value 3.2V.The SIG signals measured in reception device circuit are big
It is small, about 6V or so.Slide-wire rheostat W5 in Regulate signal process circuit so that its output voltage is 0V, when SIG signals about
For 6V when, adjust slide-wire rheostat W6 so that CTRL signal 10V.By adjusting slide-wire rheostat W7 and slide-wire rheostat W8,
During so that control signal CTRL value being 10V, red light emitting diodes D26~D33 all lights of output, when CTRL value is 5V,
Red light emitting diodes go out four lamps.Slide-wire rheostat W9 is adjusted in driving circuit of servo valve so that input voltage is -5V,
When control signal CTRL is 10V, the resistance in hundreds of Europe, measurement resistance both ends electricity are sealed between CTRLV+ and CTRLV-
Pressure value, voltage 12.5V, debugging finish.
After having debugged, it is powered, by observing the bright light situation of light emitting diode it is known that band blocks light source feelings
Condition, and the servo valve resistance value of driving is known to, it can calculate and not block（That is 8 light emitting diode all lights, CTRL 10V）
When pass through the electric current of servo valve（Magnitude of voltage divided by servo valve resistance value between CTRLV+ and CTRLV-）.
When 8 light emitting diode all lights, CTRL 10V, because reference voltage is -5V, pass through two-stage inverting amplifier
Afterwards, output voltage is just, servo valve electric current is just；When 8 light emitting diodes go out entirely, CTRL 0V, reference voltage is -5V,
After two-stage phase inverter and amplifier, output voltage is negative, and servo valve electric current is negative, and thus, reversal drives servo valve
Drive uncoiling or coiling machine to move left and right, finally realize centering or correction.
Although above-mentioned the embodiment of the present invention is described with reference to accompanying drawing, model not is protected to the present invention
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need to pay various modifications or deformation that creative work can make still within protection scope of the present invention.
Claims (5)
1. a kind of centering control system, it is characterized in that：It includes emitter circuit, reception device circuit, signal processing circuit
And driving circuit of servo valve, the signal processing circuit include operational amplifier IC9, operational amplifier IC10, operational amplifier
IC11, operational amplifier IC12, operational amplifier IC13, operational amplifier IC9 inverting input are connected to cunning by resistance R41
Line rheostat W5 centre tap, slide-wire rheostat W5 both ends connect positive and negative power supply, in-phase input end ground connection, anti-phase input respectively
Resistance R43 is connected between end and output end, output is connected to slide-wire rheostat W6 one end, and the slide-wire rheostat W6 other ends are grounded,
Centre tap is connected to operational amplifier IC10 inverting input by resistance R44；Operational amplifier IC10 in-phase input end
Ground connection, is connected to resistance R45 and electric capacity C9 in parallel, output end passes through resistance R46 and computing between inverting input and output end
Amplifier IC11 inverting input is connected；Operational amplifier IC11 in-phase input end ground connection, inverting input and output end
Between be connected to the resistance R47 and slide-wire rheostat W7 of series connection, output end is anti-phase defeated by resistance R48 and operational amplifier IC12's
Enter end to be connected；Operational amplifier IC12 in-phase input end ground connection, is connected to resistance R49 between inverting input and output end, defeated
Go out end to be connected with lever indicator IC13 signal input part；Lever indicator IC13 luminous tube maximum brightness setting end, base
Quasi- voltage output end is connected by resistance R50 with slide-wire rheostat W8 one end, slide-wire rheostat W8 other ends ground connection, centre tap
It is connected with lever indicator IC13 reference voltage setting end, lever indicator IC13 luminous tube negative pole end is respectively by luminous
Diode D26~D33 is connected to power supply VCC2.
2. centering control system according to claim 1, it is characterized in that：Its emitter circuit is by oscillating circuit and transmitting
Signal circuit forms, and oscillating circuit includes multivibrator IC1, the first operational amplifier IC2 and the second operational amplifier IC3,
Multivibrator IC1 control source termination power supply VCC1 is simultaneously connected, slip with slide-wire rheostat W1 one end and centre tap
Rheostat W1 another terminating resistor R1, and pass through the resistance R1 of series connection, resistance R2, slide-wire rheostat 2 and backward dioded D2
Multivibrator IC1 threshold end is connect, multivibrator IC1 triggering input is connected with threshold end and connect by electric capacity C1
Ground, control terminal are grounded by electric capacity C2, and the common port for the terminating resistor R1 and resistance R2 that discharges simultaneously connects multi-resonant by diode D1
Device IC1 threshold end is swung, output termination slide-wire rheostat W3 and slide-wire rheostat W4 one end, slide-wire rheostat W3, slip become
Hinder device W4 other end ground connection；Slide-wire rheostat W3, slide-wire rheostat W4 centre tap pass through resistance R3 and resistance R7 respectively
Operational amplifier IC2, operational amplifier IC3 in-phase input end are connect, resistance R4 is connected between inverting input and output end；Fortune
The output end for calculating amplifier IC2 is connected by resistance R5 with triode Q1 base stage, and triode Q1 colelctor electrode meets power supply VCC1,
Emitter stage connects base stage by diode D3 and is grounded by light emitting diode D4, resistance R6；Operational amplifier IC3 anti-phase input
Resistance R8 is connected between end and output end, operational amplifier IC3 output end is connected by resistance R9 with triode Q2 base stage,
Triode Q2 colelctor electrode meets power supply VCC1, and emitter stage connects base stage and by light emitting diode D6 and resistance by diode D5
R10 is grounded；Triode Q1, triode Q2 emitter stage are connected with transmission signal circuit.
3. centering control system according to claim 2, it is characterized in that：Transmission signal circuit in its emitter circuit
Including the binding post J1 being connected and two groups of Light-Emitting Diode groups, every group of Light-Emitting Diode group is by multiple light-emitting diodes in parallel
Pipe is formed, and the signal FS1 of triode Q1 emitter stage output is grounded by first group of Light-Emitting Diode in parallel, triode Q2's
The signal FS2 of emitter stage output is grounded by multigroup Light-Emitting Diode in parallel, and each Light-Emitting Diode is serially connected with current-limiting resistance.
4. centering control system according to claim 1, it is characterized in that：Its reception device circuit includes three terminal regulator
IC4, infrared receiving tube Q3 and operational amplifier IC5, three terminal regulator IC4 control source termination power supply VCC1, common ground
End ground connection, voltage output termination infrared receiving tube Q3 colelctor electrode are simultaneously grounded, infrared receiving tube Q3 emitter stage by electric capacity C3
It is grounded by resistance R27 and operational amplifier IC5 inverting input, resistance R28 and electric capacity is connect by resistance R28 and electric capacity C5
C5 common port is connected with operational amplifier IC5 output end by electric capacity C4 and is grounded by resistance R29 and resistance R30, fortune
Calculate and be connected to resistance R31 between amplifier IC5 inverting input and output end, in-phase input end is grounded by resistance R32；Computing
Amplifier IC5 output end is connected by resistance R33 with operational amplifier IC6 inverting input, and operational amplifier IC6's is same
Phase input end grounding, is connected to resistance R34 between inverting input and output end, inverting input is connected to two by diode D24
Pole pipe D25 and resistance R36 common port, operational amplifier IC7 anti-phase input is connected to by resistance R36, the electric capacity C6 of parallel connection
End, output end are connected by diode D25, resistance R36 with operational amplifier IC7 inverting input；Operational amplifier IC7's
In-phase input end is grounded by resistance R38, and resistance R37 in parallel and electric capacity C7 is connected between inverting input and output end, defeated
Go out end by resistance R39 with operational amplifier IC8 inverting input to be connected；Operational amplifier IC8 in-phase input end passes through
Resistance R41 is grounded, and is connected to resistance R40 in parallel, electric capacity C8 between inverting input and output end, at output end and the signal
Manage circuit connection.
5. centering control system according to claim 1, it is characterized in that：Its driving circuit of servo valve includes operational amplifier
IC14, operational amplifier IC15, operational amplifier IC16, servo valve control switch S1, triode Q4 and triode Q5, move to left letter
Number L, the reverse input end that signal R meets operational amplifier IC15 by resistance R52 and R53 respectively is moved to right, reverse input end is also logical
The centre tap that resistance R51 meets slide-wire rheostat W9 is crossed, slide-wire rheostat W9 mono- terminates-VCC1, other end ground connection, operation amplifier
Device IC15 in-phase input end ground connection, is connected to resistance R58 between inverting input and output end；The signal processing circuit output
Drive signal CTRL operational amplifier IC14 inverting input is connect by resistance R54, operational amplifier IC14's is same mutually defeated
Enter end ground connection, resistance R55 is connected between inverting input and output end, output end meets operational amplifier IC15 by resistance R56
Inverting input；Operational amplifier IC15 output end connects operational amplifier IC16 inverting input by resistance R59, fortune
The in-phase input end for calculating amplifier IC16 is grounded by resistance R64, and electric capacity in parallel is connected between inverting input and output end
C10, servo valve control switch S1, servo valve control switch S1 input contact sets are connected to resistance R60, resistance R61, electricity
Hinder R62, resistance R63；Operational amplifier IC16 output end is connected to triode Q4, three poles by resistance R65, resistance R67 respectively
Pipe Q5 base stage, triode Q4 colelctor electrode meet VCC1, and resistance R66, triode Q5 current collection are connected between base stage and colelctor electrode
Pole meets-VCC1, and resistance R68 is connected between base stage and colelctor electrode, and triode Q4, triode Q5 emitter stage meet CTRLV+,
CTRLV- is grounded by the resistance R69 and resistance R70 of parallel connection.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107807677A (en) * | 2017-11-01 | 2018-03-16 | 中色科技股份有限公司 | Uncoiling or coiling machine centering control system |
| CN107866447A (en) * | 2017-11-01 | 2018-04-03 | 中色科技股份有限公司 | A kind of centre position control system |
| CN107908214A (en) * | 2017-11-01 | 2018-04-13 | 中色科技股份有限公司 | Uncoiling or coiling machine centre position control system |
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| CN107807677A (en) * | 2017-11-01 | 2018-03-16 | 中色科技股份有限公司 | Uncoiling or coiling machine centering control system |
| CN107866447A (en) * | 2017-11-01 | 2018-04-03 | 中色科技股份有限公司 | A kind of centre position control system |
| CN107908214A (en) * | 2017-11-01 | 2018-04-13 | 中色科技股份有限公司 | Uncoiling or coiling machine centre position control system |
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