CN100480935C - Middle correcting error guidance system - Google Patents
Middle correcting error guidance system Download PDFInfo
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- CN100480935C CN100480935C CNB2007100927972A CN200710092797A CN100480935C CN 100480935 C CN100480935 C CN 100480935C CN B2007100927972 A CNB2007100927972 A CN B2007100927972A CN 200710092797 A CN200710092797 A CN 200710092797A CN 100480935 C CN100480935 C CN 100480935C
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Abstract
The invention comprises a photoelectric sensor, a micro computer ratio controller and an intermediate error-correcting guiding unit. Said micro computer ratio controller comprise: a setting circuit, a edge line selecting circuit, a signal equalizing amplifier circuit, a positive and negative signal control circuit, a signal processing circuit, a manual auto-neutralizing circuit, a power amplifier circuit, a single chip controlling circuit, a display circuit. The input of the setting circuit is connected to the panel and is used for setting the control mode and outputting the driving signal to the single chip control circuit; the single chip control circuit receives the driving signal and outputs the indication signal to the edge line selecting circuit, signal equalizing amplifier circuit; positive and negative signal control circuit and manual auto-neutralizing circuit.
Description
Technical field
The present invention relates to the control of coiled strip precision, be specifically related to the middle correcting error guidance system that application sensors technology and singlechip technology are realized
Background technology
In the plant equipment of industries such as packing, printing, weaving, papermaking, plastics, printing and dyeing, in order to guarantee crudy, boost productivity, cut the waste, must carry out centre correcting error guidance operation to coiled material.Middle correcting error guidance system mainly is made of photoelectric sensor, controller, topworks, photoelectric sensor detects marginal position or markings position, with the take-off location deviation signal, again position error signal is exported to controller, carry out logical operation by controller, produce control signal, deviation during the operation of control executing mechanism correction material, the patent No. of inventor's application is that 02221638.3 DC servo photoelectricity automatic deviation rectifying device exists function singleness, controller adopts mimic channel, the shortcoming that control accuracy is not high.
Summary of the invention
At the defective that above-mentioned prior art exists, technical matters to be solved by this invention is to provide a kind of middle correcting error guidance system that coiled strip is carried out correcting error guidance control.
In order to solve the problems of the technologies described above, according to a technical scheme of the present invention, a kind of middle correcting error guidance system comprises: photoelectric sensor, micro computer proportional controller and middle correcting error guidance device;
It is characterized in that: described micro computer proportional controller comprises that circuit, sideline are set selects circuit, signal-balanced amplifying circuit, positive and negative signal control circuit, signal processing circuit, manually returns middle circuit, power amplification to promote circuit, single chip machine controlling circuit, display circuit automatically;
Circuit is set: input end connects panel, and control mode is set, and output drive signal is given single chip machine controlling circuit;
Single chip machine controlling circuit: receive the drive signal that circuit output is set; Output instruction signal is selected circuit, signal-balanced amplifying circuit, positive and negative signal control circuit, is manually returned middle circuit automatically to the sideline;
Circuit is selected in the sideline: be subjected to the control of single chip machine controlling circuit, receive the electric signal of photoelectric sensor output, convert control signal to and be input to signal-balanced amplifying circuit, output a control signal to signal processing circuit simultaneously;
Signal-balanced amplifying circuit: be subjected to the control of single chip machine controlling circuit, the control signal that the reception sideline selects circuit to export converts signal voltage to and positive and negative balanced voltage outputs to positive and negative signal control circuit;
Positive and negative signal control circuit: be subjected to the control of single chip machine controlling circuit, the signal voltage and the positive and negative balanced voltage of the output of received signal balance amplifying circuit, the output buck-boost control signal is to signal processing circuit;
Signal processing circuit: receive the buck-boost control signal of positive and negative signal control circuit output, be subjected to the sideline to select the control of circuit simultaneously, output a control signal to and manually return middle circuit automatically;
Manually return middle circuit automatically: controlled by single chip machine controlling circuit, the control signal of received signal treatment circuit output, output control voltage promotes circuit to power amplification, export control signal simultaneously and give display circuit, and after middle correcting error guidance device is corrected the datum quantity of extremely setting with the coiled strip mark position, stop output automatically;
Power amplification promotes circuit: will manually return the control voltage of middle circuit output automatically, and amplify the back and promote the direct current generator rotation;
Display circuit: be subjected to manually to return automatically the control of middle circuit (8), carry out the indication of data presentation and function.
According to of the present invention a kind of in the middle of another preferred version of correcting error guidance system, described manually return automatically in circuit comprise analog switch U16～U19, photoelectrical coupler T4～T7, reverser U9E, U9F, resistance R 36～R57, diode D5, D6; Wherein, reverser U9E, the input end of U9F connects single-chip microcomputer, output terminal connects input end 2 pin of photoelectrical coupler T5 respectively, 4 pin, output terminal 6 pin of photoelectrical coupler T5,8 pin connect the control end A of analog switch U16 respectively, B, and respectively by resistance R 42, R46 connects positive supply, input end 1 pin of photoelectrical coupler T5,3 pin are respectively by resistance R 40, R41 connects pilot lamp DS14, DS15, and connect positive supply by pilot lamp, the road input end Y3 pin of analog switch U16 connects the output terminal X pin of analog switch U19, the input end Y1 pin of analog switch U16 connects the output terminal of integrated circuit U21C, another road input end X1 pin of analog switch U16, the X3 pin connects power amplification and promotes circuit, and by resistance R 53 ground connection, another road input end X2 pin of analog switch U16 connects signal processing circuit, the output terminal X pin of analog switch U16 connects display circuit, another road output terminal Y pin connects the input end Y3 pin of analog switch U17, the control end A of analog switch U17, B connects output terminal 6 pin of photoelectrical coupler T6 respectively, 8 pin, the output terminal Y pin of analog switch U17 connects the input end X3 pin of analog switch U18, the input end X1 pin that connects analog switch U18 simultaneously by diode D5, the input end X2 pin that connects analog switch U18 by diode D6, the control end A of analog switch U19, B connects output terminal 6 pin of photoelectrical coupler T7 respectively, 8 pin, and respectively by resistance R 52, R51 connects positive supply, the input end X1 pin of analog switch U19 connects positive voltage by resistance R 56, the input end X2 pin of analog switch U19 connects negative supply voltage by resistance R 57, the control end A of analog switch U18, B connects output terminal 8 pin of photoelectrical coupler T4 respectively, 6 pin, the output terminal X pin of analog switch U18 connects the input end that power amplification promotes circuit, input end 1 pin of photoelectrical coupler T6,3 pin are respectively by resistance R 43, R47 connects positive supply, input end 2 pin of photoelectrical coupler T6,4 pin are respectively by manually controlling button S10, S11 ground connection, input end 1 pin of photoelectrical coupler T4,3 pin are respectively by resistance R 38, R37 connects positive supply, input end 2 pin of photoelectrical coupler T4,4 pin are respectively by left and right sides limit switch SX1, SX2 ground connection, input end 1 pin of photoelectrical coupler T7,3 pin are respectively by resistance R 50, R49 connects positive supply, input end 2 pin of photoelectrical coupler T7,4 pin are respectively by center limit switch SX3, SX4 ground connection.
According to another preferred version of a kind of middle correcting error guidance system of the present invention, described single chip machine controlling circuit comprises single-chip microcomputer U7.
Another preferred version according to a kind of middle correcting error guidance system of the present invention, described sideline selects circuit to comprise totalizer, subtracter, multiway analog switch U11, photoelectrical coupler T2, wherein, totalizer comprises integrated circuit U13A and resistance R 18, and subtracter comprises integrated circuit U13B and resistance R 28.
Another preferred version according to a kind of middle correcting error guidance system of the present invention, described signal processing circuit comprises resistance R 58～R65, RP5A, RP5B, RP5C, RP5D, RP6A, RP6B, integrated circuit U20A, U21A, U21B, U21C, U21D, wherein integrated circuit U20A and resistance R 60 constitute sign-changing amplifier, the reverse input end of integrated circuit U20A connects the output of positive and negative signal control circuit by resistance R 63, the output terminal of integrated circuit U20A connects manually returns middle circuit automatically, the output terminal of integrated circuit U20A connects a two-stage Schmidt circuit simultaneously, described two-stage Schmidt circuit is by integrated circuit U21A, U21D and resistance R 58, R59, R64, R65, RP5A, RP5C, RP6A, RP6B constitutes, the output terminal fillet line options circuit of Schmidt circuit, the reverse input end that connects integrated circuit U21B simultaneously by resistance R P5B, integrated circuit U21B and resistance R 61 constitute sign-changing amplifier, the output terminal of integrated circuit U21B connects the reverse input end of integrated circuit U21C by resistance R P5D, the reverse input end of integrated circuit U21C connects by resistance R P6C manually returns middle circuit automatically, integrated circuit U21C and resistance R 62 constitute sign-changing amplifier, and the output terminal of integrated circuit U21C connects manually returns middle circuit automatically.
Another preferred version according to a kind of middle correcting error guidance system of the present invention, described positive and negative signal control circuit is by integrated circuit U9C, U9D, U10A, photoelectrical coupler T2, analog switch U12, resistance R 9, R10, R12, R14, light emitting diode DS10, the sign-changing amplifier that DS12 constitutes constitutes, wherein, the input end of integrated circuit U9C connects single-chip microcomputer, the output terminal of integrated circuit U9C connects the input end of integrated circuit U9D, and by resistance R 10, light emitting diode DS10 connects positive supply, the output terminal of integrated circuit U9D connects input end 4 pin of photoelectrical coupler T2, input end 3 pin of photoelectrical coupler T2 are by resistance R 12, light emitting diode DS12 connects positive supply, output terminal 6 pin of photoelectrical coupler T2 connect the control end A pin of analog switch U12, the B pin, and connect positive supply by resistance R 9, one group of input end Y0 pin of analog switch U12 is connected the output of signal-balanced amplifying circuit with the reverse input end of integrated circuit U10A, the input end Y3 pin of analog switch U12 connects the output terminal of integrated circuit U10A, the output terminal Y pin of analog switch U12 connects signal processing circuit, and resistance R 14 is connected between the reverse input end and output terminal of integrated circuit U10A.
Of the present invention a kind of in the middle of the beneficial effect of correcting error guidance system be: can according to the sensor light electric signal depart from the size of reference point and direction automatically to various coiled strips carry out non-contacting in the middle of correcting error guidance control, both can select also can follow line traffic control with limit control, speed is fast, correction precision height, flexible for installation, convenient, cost is low, have automatic monitoring, from motion tracking, automatic function such as adjustment, applicable to middle correcting error guidance operation to coiled strips such as film, coil paper, metal forming, nonwoven step, hygienic materials.
Description of drawings
Fig. 1 is the composition frame chart of a kind of middle correcting error guidance system of the present invention.
Fig. 2 is the theory diagram of micro computer proportional controller 2 among Fig. 1
Fig. 3 is the theory diagram of photoelectric sensor 1 among Fig. 1.
Fig. 4 is the schematic diagram that circuit 4, signal-balanced amplifying circuit 5, positive and negative signal control circuit 6 are selected in the sideline among Fig. 2.
Fig. 5 is the schematic diagram that signal processing circuit 7 among Fig. 2, power amplification promote circuit 9.
Fig. 6 is the schematic diagram of circuit 8 in manually returning automatically among Fig. 2.
Fig. 7 is the schematic diagram that circuit 3 and single chip machine controlling circuit 10 are set among Fig. 2.
Fig. 8 is the program flow chart of single chip machine controlling circuit 10 of packing into.
Fig. 9 is the schematic diagram of display circuit 18 and power circuit 17.
Figure 10 is the schematic diagram of photoelectric sensor 1 among Fig. 3.
Figure 11 is the schematic diagram of modular circuit 14A, 14B among Figure 10.
Figure 12 is the structural representation of middle correcting error guidance device 15 among Fig. 1
Embodiment
Below in conjunction with accompanying drawing the present invention is elaborated.
Referring to Fig. 1, Fig. 2 and Fig. 3, a kind of middle correcting error guidance system is made of photoelectric sensor 1, micro computer proportional controller 2 and middle correcting error guidance device 15; Described photoelectric sensor 1 detects the edge of coiled strip 19 mark positions, reads the physical location and the side-play amount of setting benchmark of coiled strip 19 mark positions, and converts side-play amount to electric signal and be input to micro computer proportional controller 2; Micro computer proportional controller 2 receives the electric signal of photoelectric sensor 1 output, correcting error guidance device 15 in the middle of electric signal amplification, effect standard and power amplification are exported to; Middle correcting error guidance device 15 corrects coiled strip 19 mark positions to the datum quantity of setting.
Wherein said micro computer proportional controller 2 is by circuit 3, sideline selection circuit 4, signal-balanced amplifying circuit 5, positive and negative signal control circuit 6, signal processing circuit 7 being set, manually returning middle circuit 8, power amplification promotion circuit 9, single chip machine controlling circuit 10, power circuit 17, display circuit 18 to constitute automatically; Wherein, the button that is provided with in the circuit 3 is installed on the panel of micro computer proportional controller 2, output terminal connects the input end of single chip machine controlling circuit 10, the output terminal of single chip machine controlling circuit 10 is fillet line options circuit 4 respectively, signal-balanced amplifying circuit 5, positive and negative signal control circuit 6, the control end of circuit 8 in manually returning automatically, simultaneously, circuit 4 is selected in the sideline, signal-balanced amplifying circuit 5, positive and negative signal control circuit 6, signal processing circuit 7, circuit 8 in manually returning automatically, power amplification promotes circuit 9 and is linked in sequence, and the sideline selects another output terminal of circuit 4 to connect the control end of signal processing circuit 7, display circuit 18 connects pilot lamp and manually returns middle circuit 8 automatically, and power circuit 17 provides voltage for each circuit unit.
Wherein, the input end that circuit 3 is set connects panel, and control mode is set, and output drive signal is given single chip machine controlling circuit 10; Single chip machine controlling circuit 10 receives the drive signal that circuit 3 outputs are set; Output instruction signal select to the sideline circuit 4, signal-balanced amplifying circuit 5, positive and negative signal control circuit 6, manually return automatically in circuit 8; The sideline selects circuit 4 to be subjected to the control of single chip machine controlling circuit 10, receives the electric signal that photoelectric sensor 1 is exported, and converts to the limit signal or with the line signal and is input to signal-balanced amplifying circuit 5, outputs a control signal to signal processing circuit 7 simultaneously; Signal-balanced amplifying circuit 5 is subjected to the control of single chip machine controlling circuit 10, receive the sideline select circuit 4 outputs with the limit signal or with the line signal, and convert signal voltage to and positive and negative balanced voltage outputs to positive and negative signal control circuit 6; Positive and negative signal control circuit 6 is subjected to the control of single chip machine controlling circuit 10, the signal voltage and the positive and negative balanced voltage of 5 outputs of received signal balance amplifying circuit, and the output buck-boost control signal is to signal processing circuit 7; Signal processing circuit 7 receives the buck-boost control signal of positive and negative signal control circuit 6 outputs, is subjected to the sideline to select the control of circuit 4 simultaneously, outputs a control signal to and manually returns middle circuit 8 automatically; Circuit 8 is subjected to single chip machine controlling circuit 10 controls in manually returning automatically, the control signal of received signal treatment circuit 7 outputs, output control voltage promotes circuit 9 to power amplification, export control signal simultaneously and give display circuit 18, and after middle correcting error guidance device 15 is corrected the datum quantity of extremely setting with coiled strip 19 mark positions, stop output automatically; Power amplification promotes circuit 9 will manually return the control voltage of middle circuit 8 outputs automatically, amplify back pushing motor forward and backward; The indication of data presentation and function was carried out in the control of circuit 8 during display circuit 18 was subjected to manually to return automatically.
Referring to Fig. 6, described manually return automatically in circuit 8 comprise analog switch U16～U19, photoelectrical coupler T4～T7, reverser U9E, U9F, resistance R 36～R57, diode D5, D6; Wherein, reverser U9E, the input end of U9F connects the manual of single-chip microcomputer, automatic control end P1.2, P1.3, reverser U9E, the output terminal of U9F connects input end 2 pin of photoelectrical coupler T5 respectively, 4 pin, output terminal 6 pin of photoelectrical coupler T5,8 pin connect the control end A of analog switch U16 respectively, B also passes through resistance R 42 respectively, R46 connects positive supply, input end 1 pin of photoelectrical coupler T5,3 pin are respectively by resistance R 40, R41 connects pilot lamp DS14, DS15, and connect positive supply by pilot lamp, the road input end Y3 pin of analog switch U16 connects the output terminal X pin of analog switch U19, the input end Y1 pin of analog switch U16 connects the output terminal of integrated circuit U21C, another road input end X1 pin of analog switch U16, the X3 pin connects power amplification and promotes circuit 9, and by resistance R 53 ground connection, another road input end X2 pin of analog switch U16 connects signal processing circuit 7, the output terminal X pin of analog switch U16 connects display circuit 18, another road output terminal Y pin connects the input end Y3 pin of analog switch U17, the control end A of analog switch U17, B connects output terminal 6 pin of photoelectrical coupler T6,8 pin, the output terminal Y pin of analog switch U17 connects the input end X3 pin of analog switch U18, the input end X1 pin that connects analog switch U18 simultaneously by diode D5, the input end X2 pin that connects analog switch U18 by diode D6, the control end A of analog switch U19, B connects output terminal 6 pin of photoelectrical coupler T7 respectively, 8 pin, and respectively by resistance R 52, R51 connects positive supply, the input end X1 pin of analog switch U19 connects positive voltage by resistance R 56, the input end X2 pin of analog switch U19 connects negative supply voltage by resistance R 57, the control end A of analog switch U18, B connects output terminal 8 pin of photoelectrical coupler T4 respectively, 6 pin, the output terminal X pin of analog switch U18 connects the input end that power amplification promotes circuit 9, input end 1 pin of photoelectrical coupler T6,3 pin are respectively by resistance R 43, R47 connects positive supply, input end 2 pin of photoelectrical coupler T6,4 pin are respectively by manually controlling button S10, S11 ground connection, input end 1 pin of photoelectrical coupler T4,3 pin are respectively by resistance R 38, R37 connects positive supply, input end 2 pin of photoelectrical coupler T4,4 pin are respectively by left and right sides limit switch SX1, SX2 ground connection, input end 1 pin of photoelectrical coupler T7,3 pin are respectively by resistance R 50, R49 connects positive supply, input end 2 pin of photoelectrical coupler T7,4 pin are respectively by center limit switch SX3, SX4 ground connection.Wherein analog switch U16, U17, U18, U19 specifically can select two four path analoging switch SD4052.When at manual state, single-chip microcomputer sends command signal by reverser U9E and photoelectrical coupler T5 control.
Referring to Fig. 4, described sideline selects circuit 4 to be made of integrated circuit U13A, U13B, U9A, U9B, 1,2,7,8 pin of photoelectrical coupler T2, multiway analog switch U11, resistance R 11, R13, R18, R19, R20, R23～R28, R30, light emitting diode DS11, DS13; Wherein, the input end of integrated circuit U9A connects the sideline signal controlling end P1.0 of single-chip microcomputer, integrated circuit U13A and resistance R 18 constitute totalizer, integrated circuit U13B and resistance R 28 constitute subtracter, resistance R 19, R23 connects the electric signal of rectification amplifying circuit 14 outputs in the photoelectric sensor 1, the output terminal of totalizer and subtracter is connected the road input end Y3 of multiway analog switch U11 respectively, the Y0 pin, another road input X0 of multiway analog switch U11, X3 pin ground connection, the control end A of multiway analog switch U11, the B pin connects the 8 pin output of photoelectrical coupler T2, the road output Y pin of multiway analog switch U11 connects the input of signal-balanced amplifying circuit 5 by resistance, another road output X pin of multiway analog switch U11 connects signal processing circuit 7, the two-way photosignal of rectification amplifying circuit 14 outputs from photoelectric sensor 1 enters the subtracter that integrated circuit U13A constitutes totalizer and is made of integrated circuit U13B simultaneously, set subtracter for following the line signal, totalizer is for following the limit signal, when following line traffic control, light emitting diode DS11 is bright, when following limit control, light emitting diode DS13 is bright, signal selects to be controlled by photoelectrical coupler T2 by the P1.0 pin of single-chip microcomputer U7 the A of multi-channel analog switch circuit U11, the B end is finished, and signal is by resistance R 27 entering signal balance amplifying circuits 5.
Described signal-balanced amplifying circuit 5 mainly comprises by integrated circuit U10C, resistance R 15, the sign-changing amplifier that capacitor C 17 constitutes, electronic potentiometer U15, U14, sensitivity switch S8, S9, integrated transporting discharging U10B, capacitor C 20 constitutes, select the sideline signal of circuit 4 outputs to enter sign-changing amplifier U10C by resistance R 27 from the sideline, entering signal balance amplifier stage U10B again, the signal that enters amplifier stage U10B has three kinds simultaneously, be respectively positive and negative balanced signal, amplify feedback signal and input signal, three kinds of composite signals are output as zero when balance, also be to assert circuit zero point, wherein, U15, U14 is electronic potentiometer, by manual or Single-chip Controlling, regulate the size of resistance, when reaching initial, circuit is output as zero, when the two-way photosignal changed, circuit was also along with there being the output of plus or minus voltage to go to control the back level.
Described positive and negative signal control circuit 6 is by integrated circuit U9C, U9D, U10A, photoelectrical coupler T2, analog switch U12, resistance R 9, R10, R12, R14, light emitting diode DS10, the sign-changing amplifier that DS12 constitutes constitutes, wherein, the input end of integrated circuit U9C connects single-chip microcomputer, the output terminal of integrated circuit U9C connects the input end of integrated circuit U9D, and by resistance R 10, light emitting diode DS10 connects positive supply, the output terminal of integrated circuit U9D connects input end 4 pin of photoelectrical coupler T2, input end 3 pin of photoelectrical coupler T2 are by resistance R 12, light emitting diode DS12 connects positive supply, output terminal 6 pin of photoelectrical coupler T2 connect the control end A pin of analog switch U12, the B pin, and connect positive supply by resistance R 9, one group of input end Y0 pin of analog switch U12 is connected the output of signal-balanced amplifying circuit 5 with the reverse input of integrated circuit U10A, the input end Y3 pin of analog switch U12 connects the output terminal of integrated circuit U10A, the output terminal Y pin of analog switch U12 connects signal processing circuit 7, and resistance R 14 is connected between the reverse input end and output terminal of integrated circuit U10A.Described positive designature output is by analog switch U12 control, and positive signal forms designature by 4 outputs of balance amplifying circuit by reverser U10A, and the output of positive designature is still by the single-chip microcomputer logic control.
Referring to Fig. 5, described signal processing circuit 7 comprises resistance R 58～R65, RP5A, RP5B, RP5C, RP5D, RP6A, RP6B, integrated circuit U20A, U21A, U21B, U21C, U21D, wherein integrated circuit U20A and resistance R 60 constitute sign-changing amplifier, the reverse input end of integrated circuit U20A connects the output of positive and negative signal control circuit 6 by resistance R 63, the output terminal of integrated circuit U20A connects manually returns middle circuit 8 automatically, the output terminal of integrated circuit U20A connects a two-stage Schmidt circuit simultaneously, described two-stage Schmidt circuit is by integrated circuit U21A, U21D and resistance R 58, R59, R64, R65, RP5A, RP5C, RP6A, RP6B constitutes, the output terminal fillet line options circuit 4 of Schmidt circuit, the reverse input end that connects integrated circuit U21B simultaneously by resistance R P5B, integrated circuit U21B and resistance R 61 constitute sign-changing amplifier, the output terminal of integrated circuit U21B connects the reverse input end of integrated circuit U21C by resistance R P5D, the reverse input end of integrated circuit U21C connects by resistance R P6C manually returns middle circuit 8 automatically, integrated circuit U21C and resistance R 62 constitute sign-changing amplifier, and the output terminal of integrated circuit U21C connects manually returns middle circuit 8 automatically; This circuit is mainly used in photosignal with the line operation time, if hot spot runs away behind the line, can judge position and direction behind the line that runs away immediately, rapidly material is retracted then, with hot spot automatically lock online on, the line signal enters the Schmidt circuit of being made up of V21A, V21D behind the V20A reverser, when signal changes, export corresponding signal by Schmidt circuit actuator is adjusted accordingly, be withdrawn into former benchmark position.When system did with the limit operation, this circuit was inoperative, and signal is directly exported by V21C.
Promote in the circuit in power amplification; signal is after sign-changing amplifier U23A oppositely amplifies; through overdamping follower U20B; enter then and promote level U22; this level is a high pressure sign-changing amplifier; its output directly promotes power tube Q1, Q4; selecting power tube Q1, Q4 is that MOS is to pipe; the positive and negative voltage of its output directly promotes direct current generator B1 rotating action; triode Q2, Q3 form holding circuit, and when the electric current value of overstepping the extreme limit, the pressure drop that produces on resistance R W1, RW2 makes triode Q2, Q3 conducting; cut off input voltage, power tube Q1, Q4 are not burnt.
Referring to Fig. 7, the described circuit 2 that is provided with constitutes by button S2～S7 is set, it is limit, line options control button that button S2 wherein is set, it is positive and negative control button that button S3 is set, and it is center control button that button S4 is set, and it is manually to control button that button S5 is set, it is to control button automatically that button S6 is set, button S7 is set is Balance Control button up and down, the end ground connection of button S2～S7 is set, the other end is connected to input end P3.0～P3.5 of single-chip microcomputer U7.
Described single chip machine controlling circuit 10 mainly is made of single-chip microcomputer U7, outer clock circuit Y1, C15, C16, computer program shown in Figure 8 is housed in single-chip microcomputer simultaneously, the output terminal P1.0 fillet line options circuit 4 of single-chip microcomputer U7 wherein, the P1.1 end connects positive and negative signal control circuit 6, P1.2～P1.4 end connects manually returns middle circuit 8 automatically, and P1.5～P1.7 end connects signal-balanced amplifying circuit 5.
Fig. 9 is the schematic diagram of display circuit 18 and power circuit 17, this not tired stating.
Referring to Fig. 3, Figure 10 and Figure 11, described photoelectric sensor 1 is made of modulated light source radiating circuit 9, coaxial reflective optics 10A, 10B, 10C, 130D, optical receiver 11, modular circuit 14A, 14B, synchronous signal circuit 12, amplification output circuit 13A, 13B; Described modulated light source radiating circuit 9 emission modulated light signals focus on for the focus lamp 10A in the coaxial reflective optics; By the half reflection diaphotoscope 10D in the coaxial reflective optics modulated light signal is reflexed to coiled strip 19 mark positions again, focus lamp 10B in the coaxial reflective optics receives the reflected signal of coiled strip 19 mark positions reflection, give focus lamp 10C by the half reflection diaphotoscope 10D transmission in the coaxial reflective optics again, focus lamp 10C is transmitted to optical receiver 11; Described optical receiver 11 receiving optical signals also convert light signal to electric signal and are input to modular circuit 14A, 14B; The output terminal of described synchronous signal circuit 12 connects the synchronous signal input end of modulated light source radiating circuit 9 and modular circuit 14A, 14B simultaneously, and the control generation synchronizing signal that described synchronous signal circuit 12 is modulated light emitted circuit 9 is input to modular circuit 14A, 14B; The input end link block circuit 14A of described amplification output circuit 13A, 13B, the output terminal of 14B, the analog electrical signal of receiver module circuit 14A, 14B output also amplifies back two-way output.
In Figure 10, integrated circuit U202A, resistance R 202, R203, R205, R207, electric capacity cd201 form a multivibrator, and its vibration promotes triode Q201 makes luminotron DS201 produce a light modulated, be transmitting illuminant, emission light is by after the optical system, by the receiver received signal.Can select integrated circuit U 202A is TL082CD, emission light LED cold light source, receiver is that symmetrical silicon photocell is formed, modulated light signal by two silicon photocells receptions, enter modular circuit 14A simultaneously, 14B, modular circuit 14A, the circuit theory diagrams of 14B are seen Figure 11, the modular circuit input signal carries out signal by AC amplifier and amplifies, amplifying signal enters the synchronous rectification filtering circuit, the AC signal that prime is received converts direct current signal to, through after after the level direct current amplifies, by back level follower output direct current signal, the two-way direct current signal size of being exported changes with the power of the light that receiver receives.Form the output of off normal ratio photosignal.
Referring to Figure 12, middle correcting error guidance device 15 mainly by the two rollers of edge fulcrum advance correction frame 20, direct current generator 24, gear case 21, speed gear, precise ball screw 23, universal joint 29,29 ', stationary shaft 25,25 ', bearing 27, base 28 constitute.Correcting error guidance device 15 links to each other with stationary shaft 25 by universal joint 29 1 ends in the middle of described, the other end by universal joint 29 ' with stationary shaft 25 ' link to each other, stationary shaft 25 is installed on base 28, stationary shaft 25 ' is installed on the frame 20 of rectifying a deviation, base 28 is fixing, and base 28 is connected by bearing 27 with correction frame 20.
The principle of work of the described a kind of middle correcting error guidance system of the embodiment of the invention is: described photoelectric sensor 1 detects the edge of coiled strip 19 mark positions, physical location of reading coiled strip 19 mark positions and the side-play amount of setting benchmark, and convert side-play amount to electric signal and be input to micro computer proportional controller 2; Micro computer proportional controller 2 receives the electric signal of photoelectric sensor 1 output, electric signal is amplified, imitates standard and power amplification output control direct current generator 24 forward or reverse, drive the speed gear transmission that is installed in the gear case 21 by direct current generator 21, speed gear drives precise ball screw 23 rotations, precise ball screw 23 drives the universal joint swing that is arranged on the correction frame 20, thus coiled strip 19 mark positions is corrected to the datum quantity of setting.
Claims (6)
1, a kind of middle correcting error guidance system comprises: photoelectric sensor (1), micro computer proportional controller (2) and middle correcting error guidance device (15);
It is characterized in that: described micro computer proportional controller (2) comprises that circuit (3), sideline are set selects circuit (4), signal-balanced amplifying circuit (5), positive and negative signal control circuit (6), signal processing circuit (7), manually returns middle circuit (8), power amplification to promote circuit (9), single chip machine controlling circuit (10), display circuit (18) automatically;
Circuit (3) is set: input end connects panel, and control mode is set, and output drive signal is given single chip machine controlling circuit (10);
Single chip machine controlling circuit (10): receive the drive signal that circuit (3) output is set; Output instruction signal is selected circuit (4), signal-balanced amplifying circuit (5), positive and negative signal control circuit (6), is manually returned middle circuit (8) automatically to the sideline;
Circuit (4) is selected in the sideline: be subjected to the control of single chip machine controlling circuit (10), receive the electric signal of photoelectric sensor (1) output, convert control signal to and be input to signal-balanced amplifying circuit (5), output a control signal to signal processing circuit (7) simultaneously;
Signal-balanced amplifying circuit (5): be subjected to the control of single chip machine controlling circuit (10), receive the control signal that circuit (4) output is selected in the sideline, convert signal voltage and positive and negative balanced voltage to and output to positive and negative signal control circuit (6);
Positive and negative signal control circuit (6): be subjected to the control of single chip machine controlling circuit (10), the signal voltage and the positive and negative balanced voltage of received signal balance amplifying circuit (5) output, the output buck-boost control signal is to signal processing circuit (7);
Signal processing circuit (7): receive the buck-boost control signal of positive and negative signal control circuit (6) output, be subjected to the sideline to select the control of circuit (4) simultaneously, output a control signal to and manually return middle circuit (8) automatically;
Manually return middle circuit (8) automatically: be subjected to single chip machine controlling circuit (10) control, the control signal of received signal treatment circuit (7) output, output control voltage promotes circuit (9) to power amplification, export control signal simultaneously and give display circuit (18), and after middle correcting error guidance device (15) is corrected the datum quantity of extremely setting with coiled strip (19) mark position, stop output automatically;
Power amplification promotes circuit (9): will manually return the control voltage of middle circuit (8) output automatically, and promote direct current generator (24) after amplifying and rotate;
Display circuit (18): be subjected to manually to return automatically the control of middle circuit (8), carry out the indication of data presentation and function.
2, a kind of middle correcting error guidance system according to claim 1, it is characterized in that: the described middle circuit (8) of manually returning automatically comprises analog switch U16～U19, photoelectrical coupler T4～T7, reverser U9E, U9F, resistance R 36～R57, diode D5, D6; Wherein, reverser U9E, the input end of U9F connects single-chip microcomputer, output terminal connects input end 2 pin of photoelectrical coupler T5 respectively, 4 pin, output terminal 6 pin of photoelectrical coupler T5,8 pin connect the control end A of analog switch U16 respectively, B, and respectively by resistance R 42, R46 connects positive supply, input end 1 pin of photoelectrical coupler T5,3 pin are respectively by resistance R 40, R41 connects pilot lamp DS14, DS15, and connect positive supply by pilot lamp, the road input end Y3 pin of analog switch U16 connects the output terminal X pin of analog switch U19, the input end Y1 pin of analog switch U16 connects the output terminal of integrated circuit U21C, another road input end X1 pin of analog switch U16, the X3 pin connects power amplification and promotes circuit (9), and by resistance R 53 ground connection, another road input end X2 pin of analog switch U16 connects signal processing circuit (7), the output terminal X pin of analog switch U16 connects display circuit (18), another road output terminal Y pin connects the input end Y3 pin of analog switch U17, the control end A of analog switch U17, B connects output terminal 6 pin of photoelectrical coupler T6 respectively, 8 pin, the output terminal Y pin of analog switch U17 connects the input end X3 pin of analog switch U18, the input end X1 pin that connects analog switch U18 simultaneously by diode D5, the input end X2 pin that connects analog switch U18 by diode D6, the control end A of analog switch U19, B connects output terminal 6 pin of photoelectrical coupler T7 respectively, 8 pin, and respectively by resistance R 52, R51 connects positive supply, the input end X1 pin of analog switch U19 connects positive voltage by resistance R 56, the input end X2 pin of analog switch U19 connects negative supply voltage by resistance R 57, the control end A of analog switch U18, B connects output terminal 8 pin of photoelectrical coupler T4 respectively, 6 pin, the output terminal X pin of analog switch U18 connects the input end that power amplification promotes circuit (9), input end 1 pin of photoelectrical coupler T6,3 pin are respectively by resistance R 43, R47 connects positive supply, input end 2 pin of photoelectrical coupler T6,4 pin are respectively by manually controlling button S10, S11 ground connection, input end 1 pin of photoelectrical coupler T4,3 pin are respectively by resistance R 38, R37 connects positive supply, input end 2 pin of photoelectrical coupler T4,4 pin are respectively by left and right sides limit switch SX1, SX2 ground connection, input end 1 pin of photoelectrical coupler T7,3 pin are respectively by resistance R 50, R49 connects positive supply, input end 2 pin of photoelectrical coupler T7,4 pin are respectively by center limit switch SX3, SX4 ground connection.
3, a kind of middle correcting error guidance system according to claim 1, it is characterized in that: described single chip machine controlling circuit (10) comprises single-chip microcomputer U7.
4, a kind of middle correcting error guidance system according to claim 3, it is characterized in that: described sideline selects circuit (4) to comprise totalizer, subtracter, multiway analog switch U11, photoelectrical coupler T2, wherein, totalizer comprises integrated circuit U13A and resistance R 18, and subtracter comprises integrated circuit U13B and resistance R 28.
5, according to claim 1,2,3 or 4 described a kind of middle correcting error guidance systems, it is characterized in that: described signal processing circuit (7) comprises resistance R 58～R65, RP5A, RP5B, RP5C, RP5D, RP6A, RP6B, integrated circuit U20A, U21A, U21B, U21C, U21D, wherein integrated circuit U20A and resistance R 60 constitute sign-changing amplifier, the reverse input end of integrated circuit U20A connects the output of positive and negative signal control circuit (6) by resistance R 63, the output terminal of integrated circuit U20A connects manually returns middle circuit (8) automatically, the output terminal of integrated circuit U20A connects a two-stage Schmidt circuit simultaneously, described two-stage Schmidt circuit is by integrated circuit U21A, U21D and resistance R 58, R59, R64, R65, RP5A, RP5C, RP6A, RP6B constitutes, the output terminal fillet line options circuit (4) of Schmidt circuit, the reverse input end that connects integrated circuit U21B simultaneously by resistance R P5B, integrated circuit U21B and resistance R 61 constitute sign-changing amplifier, the output terminal of integrated circuit U21B connects the reverse input end of integrated circuit U21C by resistance R P5D, the reverse input end of integrated circuit U21C connects by resistance R P6C manually returns middle circuit (8) automatically, integrated circuit U21C and resistance R 62 constitute sign-changing amplifier, and the output terminal of integrated circuit U21C connects manually returns middle circuit (8) automatically.
6, a kind of middle correcting error guidance system according to claim 5, it is characterized in that: described positive and negative signal control circuit (6) is by integrated circuit U9C, U9D, U10A, photoelectrical coupler T2, analog switch U12, resistance R 9, R10, R12, R14, light emitting diode DS10, the sign-changing amplifier that DS12 constitutes constitutes, wherein, the input end of integrated circuit U9C connects single-chip microcomputer, the output terminal of integrated circuit U9C connects the input end of integrated circuit U9D, and by resistance R 10, light emitting diode DS10 connects positive supply, the output terminal of integrated circuit U9D connects input end 4 pin of photoelectrical coupler T2, input end 3 pin of photoelectrical coupler T2 are by resistance R 12, light emitting diode DS12 connects positive supply, output terminal 6 pin of photoelectrical coupler T2 connect the control end A pin of analog switch U12, the B pin, and connect positive supply by resistance R 9, one group of input end Y0 pin of analog switch U12 is connected the output of signal-balanced amplifying circuit (5) with the reverse input end of integrated circuit U10A, the input end Y3 pin of analog switch U12 connects the output terminal of integrated circuit U10A, the output terminal Y pin of analog switch U12 connects signal processing circuit (7), and resistance R 14 is connected between the reverse input end and output terminal of integrated circuit U10A.
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| CN103612467B (en) * | 2013-11-14 | 2015-08-19 | 华中科技大学 | A kind of control method being suitable for multilayer film compound |
| CN107866447B (en) * | 2017-11-01 | 2023-07-14 | 中色科技股份有限公司 | Centering deviation rectifying control system |
| CN107866448B (en) * | 2017-11-01 | 2023-08-18 | 中色科技股份有限公司 | Centering control system |
| CN112408025A (en) * | 2020-10-09 | 2021-02-26 | 宝应县富康医疗器械有限公司 | Absorbent gauze application apparatus |
| CN117215252B (en) * | 2023-11-07 | 2024-02-02 | 钛玛科（北京）工业科技有限公司 | Deviation rectifying control system |
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