CN109435249A - 3D printer belt tension signal processing apparatus - Google Patents
3D printer belt tension signal processing apparatus Download PDFInfo
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- CN109435249A CN109435249A CN201811281198.XA CN201811281198A CN109435249A CN 109435249 A CN109435249 A CN 109435249A CN 201811281198 A CN201811281198 A CN 201811281198A CN 109435249 A CN109435249 A CN 109435249A
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- 238000012545 processing Methods 0.000 title claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- 238000006073 displacement reaction Methods 0.000 claims abstract description 22
- 230000009977 dual effect Effects 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 239000003990 capacitor Substances 0.000 claims description 44
- 239000003381 stabilizer Substances 0.000 claims description 9
- 230000005611 electricity Effects 0.000 claims description 8
- 238000012360 testing method Methods 0.000 claims description 4
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 4
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- 230000002401 inhibitory effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010146 3D printing Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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- Optics & Photonics (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
- Ink Jet (AREA)
Abstract
The invention discloses 3D printer belt tension signal processing apparatus, belt tension signal acquisition circuit detects travel displacement signal when 3D printer belt is pressurized by displacement sensor, 1-5V voltage signal is converted to through current-to-voltage converting circuit, hysteresis comparator exports stable 1-5V voltage signal after eliminating 0.2V fluctuation voltage, enter elastic signal processing circuit later, pass through operational amplifier AR2, the dual comparator output difference signal of operational amplifier AR3 composition removes triggering thyristor VTL1, thyristor VTL1 triggering and conducting when too tight or too loose, 1-5V voltage signal entering signal conversion circuit, subtraction, which is carried out, by subtracter and best belt tension signal 3.8V exports difference signal, again through PWM conversion circuit output pwm signal, 3D is transferred to again to beat Print machine belt tension regulating device adjusts the elastic of 3D printer belt.It efficiently solves and judges the elastic of belt by artificial experience, be not easy to grasp that difficulty is big, error is big, the problem of be easy to cause belt tension mistuning section or do not adjust.
Description
Technical field
The present invention relates to 3D printer technical fields, more particularly to 3D printer belt tension signal processing apparatus.
Background technique
Since belt rotation has many advantages, such as that rotation is widely used than big, at low cost, noise low quality is small by 3D printer,
Its assembling structure is that a belt pulley (hereinafter referred to as drive pulley) is assembled on electric machine main shaft, assembles one on motor driven axle
Belt pulley (hereinafter referred to as driven pulley), two belt pulleys are by belt rotation work, and 3D printer is to rotating requires precision
Height, belt is too loose, and rotatory force can be made to become smaller seriously and can be skidded, and belt is too tight, influences the service life, and noise increases, rotatory force becomes larger, and makes
There is error at 3D printer printing.
The judgement of belt tension relies primarily on artificial experience at present, by being pressed with hand to 3D printer Belt Centre one
Power, then the range of belt pushing is observed to determine, or with 3D printer motor pulley is rotated before and after hand, checks 3D printer
Whether symmetrically determine before and after movable workbench, this mode determined by artificial experience is not easy to grasp that difficulty is big, easily produce
Raw decision errors, the case where will cause belt tension mistuning section or do not adjust.
So the present invention provides the new scheme of one kind to solve the problems, such as this.
Summary of the invention
For above situation, for the defect for overcoming the prior art, purpose of the present invention is to provide 3D printer belt pines
Tight signal processing apparatus, have be skillfully constructed, the characteristic of human oriented design, efficiently solve by artificial experience and judge skin
Band it is elastic, be not easy to grasp that difficulty is big, error is big, the problem of be easy to causeing belt tension mistuning section or do not adjust.
Its technical solution solved is, including belt tension signal acquisition circuit, elastic signal processing circuit and signal turn
Change circuit, which is characterized in that the belt tension signal acquisition circuit will be examined by the displacement sensor of model HTD-250-3
Survey 3D printer belt be pressurized when travel displacement signal be converted to 4-20mA current signal, after through resistance R0, R1, capacitor C2
1-5V voltage signal is converted to the current-to-voltage converting circuit of potentiometer RP1 composition, last 1-5V voltage signal enters operation
Amplifier AR1 is the hysteresis comparator of core, exports stable 1-5V voltage signal after eliminating 0.2V fluctuation voltage, described elastic
Signal processing circuit receives the 1-5V voltage signal of belt tension signal acquisition circuit output, passes through operational amplifier AR2, operation
The dual comparator output difference signal of amplifier AR3 composition removes triggering thyristor VTL1, judges belt tension signal, tension or mistake
Thyristor VTL1 triggering and conducting when loose, 1-5V voltage signal entering signal conversion circuit, the signal conversion circuit pass through operation
Amplifier AR4 is that the 1-5V voltage signal of input and best belt tension signal 3.8V are carried out subtraction fortune by the subtracter of core
It calculates, exports difference signal, then the PWM conversion circuit formed through operational amplifier AR5, operational amplifier AR6, output is believed with difference
The pwm signal of number duty ratio being inversely proportional, pwm signal are transferred to 3D printer belt tension regulating device again, adjust 3D printing
Machine belt it is elastic.
Due to the use of above technical scheme, the present invention has the following advantages that compared with prior art；
1, displacement sensor detects travel displacement signal when 3D printer belt is pressurized, and exports 4-20mA current signal, later
The current-to-voltage converting circuit formed through resistance R0, R1, capacitor C2 and potentiometer RP1 is converted to 1-5V voltage signal, last 1-
5V voltage signal enters operational amplifier AR1, triode Q1, resistance R2- resistance R5, the hysteresis comparator that capacitor C5 is core,
It eliminates and exports stable 1-5V voltage signal after 0.2V fluctuation voltage near 1-5V voltage signal, the inspection of belt compression range has been turned up
The precision of survey improves the precision of belt tension judgement；
2,1-5V belt tension voltage signals pass through the dual comparator output difference of operational amplifier AR2, operational amplifier AR3 composition
Value signal removes triggering thyristor VTL1, judges belt tension signal, too tight or too loose thyristor VTL1 triggering and conducting when being higher than, 1-
5V voltage signal is converted to the pwm signal being inversely proportional with 1-5V belt tension voltage signal duty ratio, energy through signal conversion circuit
Quickly, accurately determine 3D printer belt whether need to adjust, avoid belt tension deviation range it is minimum caused by belt pine
The problem of tight mistuning section or belt tension deviation range are very much not adjusted, improves the reliability that belt tension need to be adjusted.
Detailed description of the invention
Fig. 1 is circuit module figure of the invention.
Fig. 2 is circuit diagram of the invention.
Fig. 3 is the signal flow figure of elastic signal processing circuit of the invention.
Specific embodiment
For the present invention aforementioned and other technology contents, feature and effect, in following cooperation with reference to figures 1 through attached drawing 3
To in the detailed description of embodiment, can clearly present.The structure content being previously mentioned in following embodiment is with specification
Attached drawing is reference.
Each exemplary embodiment of the invention is described below with reference to accompanying drawings.
Embodiment one, 3D printer belt tension signal processing apparatus, the belt tension signal acquisition circuit pass through type
Number for HTD-250-3 displacement sensor will test 3D printer belt be pressurized when travel displacement signal be converted to 4-20mA electricity
Flow signal, after through resistance R0, R1, capacitor C2 and potentiometer RP1 composition current-to-voltage converting circuit be converted to 1-5V voltage
Signal, wherein resistance R0 and capacitor C2 form low-pass filter, and for inhibiting extraneous High-frequency Interference, adjusting potentiometer RP1 can be with
Adjust conversion voltage range, last 1-5V voltage signal enter operational amplifier AR1, triode Q1, resistance R2- resistance R5,
Capacitor C5 is the hysteresis comparator of core, eliminates and exports stable 1-5V voltage after 0.2V fluctuation voltage near 1-5V voltage signal
The precision of belt compression range detection has been turned up in signal, that is, improves the precision of belt tension judgement, the elastic signal processing
Circuit receives the 1-5V voltage signal of belt tension signal acquisition circuit output, passes through operational amplifier AR2, operational amplifier
The dual comparator output difference signal of AR3 composition removes triggering thyristor VTL1, judges belt tension signal, too tight or too loose to be higher than
When (be when being set higher than the 0.7V of the corresponding voltage 3.8V of best elasticity herein pine, be lower than the corresponding electricity of best elasticity
It is tension when pressing the 1V of 3.8V), the triggering of voltage-stabiliser tube Z1, resistance R11, capacitor C3, thyristor VTL1 composition when specific excessively loose
Circuit triggering and conducting crosses the trigger circuit triggers conducting of voltage-stabiliser tube Z2 when only, resistance R9, capacitor C3, thyristor VTL1 composition, touching
Whether 1-5V voltage signal entering signal conversion circuit after hair conducting, quick, accurate judgement 3D printer belt need to adjust, keep away
Exempt from belt tension caused by belt tension deviation range minimum (the positive and negative 0.05V of the corresponding voltage 3.8V of best elasticity) to miss
It adjusts or the problem of belt tension deviation range big (the positive and negative 1V of the corresponding voltage 3.8V of best elasticity) does not adjust, improves
The reliability that belt tension need to be adjusted, the signal conversion circuit will inputs by the subtracter that operational amplifier AR4 is core
1-5V voltage signal and best belt tension signal 3.8V carry out subtraction, difference signal is exported, then through operational amplifier
AR5, operational amplifier AR6 are the PWM conversion circuit of core composition, and the PWM for the duty ratio that output is inversely proportional with difference signal believes
Number, pwm signal stable, that edge is precipitous most is exported after resistance R18, capacitor C9 eliminate shake afterwards, is transferred to 3D printer
Belt tension regulating device is reduced and is lost in simulation 1-5V voltage signal transmission process to adjust the elastic of 3D printer belt
Very, the problem of decaying.
Embodiment two, on the basis of example 1, the elastic signal processing circuit receive belt tension signal acquisition
The 1-5V voltage signal of circuit output exports difference by the dual comparator of operational amplifier AR2, operational amplifier AR3 composition
Signal removes triggering thyristor VTL1, judges belt tension signal, too tight or too loose (to be set higher than best elasticity herein when being higher than
It was pine when the 0.7V of corresponding voltage 3.8V, and was tension when the 1V of voltage 3.8V corresponding lower than best elasticity) thyristor
Whether VTL1 triggering and conducting, 1-5V voltage signal entering signal conversion circuit, quick, accurate judgement 3D printer belt need to adjust
Section avoids belt caused by belt tension deviation range minimum (the positive and negative 0.05V of the corresponding voltage 3.8V of best elasticity)
The problem of elastic mistuning section or belt tension deviation range big (the positive and negative 1V of the corresponding voltage 3.8V of best elasticity) are not adjusted,
The reliability that belt tension need to be adjusted, including operational amplifier AR2, operational amplifier AR3 are improved, operational amplifier AR2's
Non-inverting input terminal, the inverting input terminal of operational amplifier AR3, thyristor VTL1 anode, the anti-phase input of operational amplifier AR2
End is separately connected one end of one end of resistance R6, resistance R7, and the non-inverting input terminal of operational amplifier AR3 is separately connected resistance R7's
One end of the other end, resistance R8, the other end of resistance R6 connect power supply+15V, and the other end of resistance R8 connects ground, operation amplifier
The cathode of the output end connection voltage-stabiliser tube Z1 of device AR2, the anode of the output end connection voltage-stabiliser tube Z2 of operational amplifier AR3, pressure stabilizing
The anode of pipe Z1 is separately connected the control electrode of thyristor VTL1, one end of ground resistance R11, one end of ground capacity C3, resistance
One end of R9, the cathode of the other end connection voltage-stabiliser tube Z2 of resistance R9, one end of the cathode connection resistance R10 of thyristor VTL1,
One end of the other end connection capacitor C4 of resistance R10, the other end of capacitor C4 connect ground；
The signal conversion circuit is by subtracter that operational amplifier AR4 is core by the 1-5V voltage signal of input and best
Belt tension signal 3.8V(3.8V is the 3D printer of TY-H400 model, the best elastic corresponding voltage of 2GT-6mm belt) into
Row subtraction exports difference signal, then converts electricity through the PWM that operational amplifier AR5, operational amplifier AR6 are core composition
Road, the pwm signal for the duty ratio that output is inversely proportional with difference signal, specific 1-5V voltage signal is through operational amplifier AR5, electricity
The integrator integral generation triangular wave for hindering R13- resistance R16, capacitor C10, C11 composition, into the same mutually defeated of operational amplifier AR6
Enter end to be compared with inverting input terminal DC voltage+5V, when the linearly of integrator output is incremented by, successively decreases, operation is put
Big device AR2 output+5V high level or 0V low level, i.e. generation PWM square-wave signal respectively, are most eliminated through resistance R18, capacitor C9 afterwards
Pwm signal stable, that edge is precipitous is exported after shake, is transferred to 3D printer belt tension regulating device, adjusts 3D printing
Machine belt it is elastic, be able to achieve 3D printer belt tension and effectively control, improve printing precision, including operational amplifier
AR4, the non-inverting input terminal of operational amplifier AR4 are separately connected one end of one end of resistance R11, resistance R12, and resistance R11's is another
One end connects power supply+15V, and the other end of resistance R12 connects ground, the inverting input terminal connection resistance R10's of operational amplifier AR4
The other end, one end of the output end connection resistance R13 of operational amplifier AR4, the other end of resistance R13 are separately connected operation and put
The inverting input terminal of big device AR5, one end of resistance R16, capacitor C6 one end, the non-inverting input terminal difference of operational amplifier AR5
Connect one end of resistance R14, one end of resistance R15, capacitor C10 one end, the other end of resistance R14 connects power supply+5V, resistance
The other end of R15 connects ground with the other end of capacitor C10, and the other end of resistance R16 is separately connected the other end of capacitor C6, operation
The non-inverting input terminal of the output end of amplifier AR5, operational amplifier AR6, the inverting input terminal and capacitor C7 of operational amplifier AR6
One end connect power supply+5V, the other end of capacitor C7 connects ground, and the end VCC of operational amplifier AR6 is connected with one end of capacitor C8
The end GND of power supply+5V, operational amplifier AR6 connect ground, the output end difference of operational amplifier AR2 with the other end of capacitor C8
One end of resistance R17, one end of resistance R18 are connected, the other end of resistance R17 connects the inverting input terminal of operational amplifier AR5,
The other end of resistance R18 and one end of ground capacity C9 are signal conversion circuit output end, output pwm signal.
Embodiment three, on the basis of example 2, the belt tension signal acquisition circuit pass through model HTD-
When 3D printer belt that the displacement sensor X1 of 250-3 will test is pressurized travel displacement signal (specific compression size according to
Depending on 3D printer model specification, this will not be detailed here for the prior art for this) be converted to 4-20mA current signal, after through resistance
R0, R1, capacitor C2 and potentiometer RP1 composition current-to-voltage converting circuit be converted to 1-5V voltage signal, wherein resistance R0 and
Capacitor C2 forms low-pass filter, for inhibiting extraneous High-frequency Interference, adjusts the voltage model of the adjustable conversion of potentiometer RP1
It encloses, it is the slow of core that last 1-5V voltage signal, which enters operational amplifier AR1, triode Q1, resistance R2- resistance R5, capacitor C5,
Stagnant comparator is eliminated and exports stable 1-5V voltage signal, specific operation after 0.2V fluctuation voltage near 1-5V voltage signal
Amplifier AR1 output voltage (signal detected at this time) is added to the base stage of triode Q1 through resistance R4, through resistance R5 and capacitor C5
Filtered voltage (signal of upper detection for the moment) is added to the emitter of triode Q1, when fluctuation range is little, triode Q1 cut-off,
Operational amplifier AR1 output voltage is constant, and when fluctuation range is big, triode Q1 conducting, operational amplifier AR1 output voltage is followed
Input voltage variation, the displacement sensor X1 including model HTD-250-3, response is fast, precision is high, measurement range 0-
The pin 1 of 500mm, displacement sensor X1 connect power supply+24V, the pin 3 and capacitor of displacement sensor X1 with the upper end of capacitor C1
The lower end of C1 connects ground, and the pin 2 of displacement sensor X1 connects one end of resistance R0, and the other end of resistance R0 is separately connected ground connection
One end of capacitor C2, one end of resistance R1, operational amplifier AR1 inverting input terminal, the other end of resistance R1 connects potentiometer
The lower end at the upper end of RP1 and adjustable end, potentiometer RP1 connects ground, and the non-inverting input terminal of operational amplifier AR1 is separately connected resistance
One end of R3, resistance R2 one end, the other end of resistance R3 connects power supply+0.2V, the other end connecting triode Q1 of resistance R2
Collector, the output end of operational amplifier AR1 is separately connected one end of one end of resistance R4, resistance R5, and resistance R4's is another
The base stage of connecting triode Q1 is held, the other end of resistance R5 is separately connected the emitter of one end of ground capacity C5, triode Q1.
When the present invention is specifically used, belt tension signal acquisition circuit passes through the displacement sensor of model HTD-250-3
Will test 3D printer belt be pressurized when travel displacement signal be converted to 4-20mA current signal, after through resistance R0, R1, electricity
The current-to-voltage converting circuit for holding C2 and potentiometer RP1 composition is converted to 1-5V voltage signal, wherein resistance R0 and capacitor C2 group
The voltage range of the adjustable conversion of potentiometer RP1, last 1- are adjusted for inhibiting extraneous High-frequency Interference at low-pass filter
5V voltage signal enters operational amplifier AR1, triode Q1, resistance R2- resistance R5, the hysteresis comparator that capacitor C5 is core,
It eliminates and exports stable 1-5V voltage signal after 0.2V fluctuation voltage near 1-5V voltage signal, the inspection of belt compression range has been turned up
The precision of survey improves the precision of belt tension judgement, enter elastic signal processing circuit later, pass through operational amplifier
The difference signal of the dual comparator output of AR2, operational amplifier AR3 composition removes triggering thyristor VTL1, judges that belt tension is believed
Number, too tight or too loose thyristor VTL1 triggering and conducting when being higher than, 1-5V voltage signal entering signal conversion circuit, quickly, accurate
Judge whether 3D printer belt needs to adjust, avoid belt tension deviation range it is minimum caused by belt tension mistuning section or
The problem of belt tension deviation range is very much not adjusted, improves the reliability that belt tension need to be adjusted, and signal conversion circuit passes through
Operational amplifier AR4 is that the 1-5V voltage signal of input and best belt tension signal 3.8V are carried out subtraction by the subtracter of core
Operation exports difference signal, then is the PWM conversion circuit of core composition, output through operational amplifier AR5, operational amplifier AR6
The pwm signal for the duty ratio being inversely proportional with difference signal most exports stable, side after resistance R18, capacitor C9 eliminate shake afterwards
Along precipitous pwm signal, pwm signal is transmitted directly to 3D printer belt tension regulating device, to adjust 3D printer belt
It is elastic, reduce simulation 1-5V voltage signal transmission process in distortion, decaying the problem of.
Claims (3)
1.3D printer belt tension signal processing apparatus, including belt tension signal acquisition circuit, elastic signal processing circuit
And signal conversion circuit, which is characterized in that the belt tension signal acquisition circuit is passed by the displacement of model HTD-250-3
Sensor will test 3D printer belt be pressurized when travel displacement signal be converted to 4-20mA current signal, after through resistance R0,
The current-to-voltage converting circuit of R1, capacitor C2 and potentiometer RP1 composition is converted to 1-5V voltage signal, last 1-5V voltage signal
It is the hysteresis comparator of core into operational amplifier AR1, exports stable 1-5V voltage signal after eliminating 0.2V fluctuation voltage,
The elastic signal processing circuit receives the 1-5V voltage signal of belt tension signal acquisition circuit output, passes through operational amplifier
The dual comparator output difference signal of AR2, operational amplifier AR3 composition removes triggering thyristor VTL1, judges belt tension signal,
Thyristor VTL1 triggering and conducting when too tight or too loose, 1-5V voltage signal entering signal conversion circuit, the signal conversion circuit
The 1-5V voltage signal of input and best belt tension signal 3.8V are carried out by the subtracter that operational amplifier AR4 is core
Subtraction, export difference signal, then through operational amplifier AR5, operational amplifier AR6 form PWM conversion circuit, output with
The pwm signal for the duty ratio that difference signal is inversely proportional, pwm signal are transferred to 3D printer belt tension regulating device again, adjust
3D printer belt it is elastic.
2. 3D printer belt tension signal processing apparatus as described in claim 1, which is characterized in that the elastic signal processing
Circuit includes operational amplifier AR2, operational amplifier AR3, the non-inverting input terminal of operational amplifier AR2, operational amplifier AR3
The anode of inverting input terminal, thyristor VTL1, the inverting input terminal of operational amplifier AR2 are separately connected one end of resistance R6, electricity
One end of R7 is hindered, the non-inverting input terminal of operational amplifier AR3 is separately connected one end of the other end of resistance R7, resistance R8, resistance
The other end of R6 connects power supply+15V, and the other end of resistance R8 connects ground, and the output end of operational amplifier AR2 connects voltage-stabiliser tube Z1
Cathode, the anode of the output end connection voltage-stabiliser tube Z2 of operational amplifier AR3, the anode of voltage-stabiliser tube Z1 is separately connected thyristor
The control electrode of VTL1, one end of ground resistance R11, one end of ground capacity C3, resistance R9 one end, the other end of resistance R9 connects
The cathode of voltage-stabiliser tube Z2, one end of the cathode connection resistance R10 of thyristor VTL1 are connect, the other end of resistance R10 connects capacitor C4
One end, the other end of capacitor C4 connects ground；
The signal conversion circuit includes operational amplifier AR4, and the non-inverting input terminal of operational amplifier AR4 is separately connected resistance
One end of R11, resistance R12 one end, the other end of resistance R11 connects power supply+15V, and the other end of resistance R12 connects ground, fortune
The other end of the inverting input terminal connection resistance R10 of amplifier AR4 is calculated, the output end of operational amplifier AR4 connects resistance R13
One end, the other end of resistance R13 is separately connected the inverting input terminal of operational amplifier AR5, one end of resistance R16, capacitor C6
One end, the non-inverting input terminal of operational amplifier AR5 is separately connected one end of resistance R14, one end of resistance R15, capacitor C10
One end, the other end of resistance R14 connect power supply+5V, and the other end of resistance R15 connects ground, resistance with the other end of capacitor C10
The other end of R16 be separately connected the other end of capacitor C6, the output end of operational amplifier AR5, operational amplifier AR6 it is same mutually defeated
Entering end, the inverting input terminal of operational amplifier AR6 connects power supply+5V with one end of capacitor C7, and the other end of capacitor C7 connects ground,
The end VCC of operational amplifier AR6 connects power supply+5V with one end of capacitor C8, the end GND of operational amplifier AR6 and capacitor C8's
Other end connection ground, the output end of operational amplifier AR2 are separately connected one end of one end of resistance R17, resistance R18, resistance R17
Other end connection operational amplifier AR5 inverting input terminal, one end of the other end of resistance R18 and ground capacity C9 are signal
Conversion circuit output end, output pwm signal.
3. 3D printer belt tension signal processing apparatus as described in claim 1, which is characterized in that the belt tension signal
Acquisition Circuit includes the displacement sensor X1 of model HTD-250-3, and the pin 1 of displacement sensor X1 and the upper end of capacitor C1 connect
Power supply+24V is met, the pin 3 of displacement sensor X1 connects ground with the lower end of capacitor C1, and the pin 2 of displacement sensor X1 connects electricity
One end of R0 is hindered, the other end of resistance R0 is separately connected one end of ground capacity C2, one end of resistance R1, operational amplifier AR1
Inverting input terminal, the upper end and adjustable end of the other end connection potentiometer RP1 of resistance R1, the lower end of potentiometer RP1 connects ground,
The non-inverting input terminal of operational amplifier AR1 is separately connected one end of one end of resistance R3, resistance R2, the other end connection of resistance R3
The collector of the other end connecting triode Q1 of power supply+0.2V, resistance R2, the output end of operational amplifier AR1 are separately connected electricity
One end of R4, one end of resistance R5, the base stage of the other end connecting triode Q1 of resistance R4 are hindered, the other end of resistance R5 connects respectively
Connect one end of ground capacity C5, the emitter of triode Q1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109910433A (en) * | 2019-04-30 | 2019-06-21 | 漯河市慧光印刷科技有限公司 | A printing press squeegee bottom leveling device |
| CN115459642A (en) * | 2022-09-15 | 2022-12-09 | 浙江泰坦股份有限公司 | Logistics trolley belt tightness adjusting method and device |
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| CN109910433B (en) * | 2019-04-30 | 2021-06-04 | 漯河市慧光印刷科技有限公司 | Printing machine ink scraping knife bottom plate leveling device |
| CN115459642A (en) * | 2022-09-15 | 2022-12-09 | 浙江泰坦股份有限公司 | Logistics trolley belt tightness adjusting method and device |
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