CN108681237A - Wire drawing machine winding frequency converter control method, device, computer equipment and medium - Google Patents
Wire drawing machine winding frequency converter control method, device, computer equipment and medium Download PDFInfo
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- CN108681237A CN108681237A CN201810164190.9A CN201810164190A CN108681237A CN 108681237 A CN108681237 A CN 108681237A CN 201810164190 A CN201810164190 A CN 201810164190A CN 108681237 A CN108681237 A CN 108681237A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B11/00—Automatic controllers
- G05B11/01—Automatic controllers electric
- G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
- G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P.I., P.I.D.
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
Abstract
This application involves a kind of wire drawing machine winding frequency converter control method, device computer equipment and media, including：Obtain real time of the tension swing rod of wire drawing machine from minimum point to equalization point；According to real time and preset measurement parameter, the practical coil diameter of the wind-up roll of wire drawing machine is obtained；Actually required control parameter is obtained according to preset control parameters, practical coil diameter and preset measurement parameter；According to actually required control parameter, the wind-up roll operation is controlled.The above method, device, computer equipment and medium need to only measure real time of the practical work process tension swing rod from minimum point to equalization point, practical control parameter can be obtained according to obtained real time, default measurement parameter and control parameter, complicated machinery parameter need not be inputted, preset control parameters need not be adjusted.Compared with the control of winding frequency converter in traditional wire drawing machine, have the advantages that operation ease is high.
Description
Technical field
This application involves converter technology field, more particularly to a kind of wire drawing machine winding frequency converter control method, device,
Computer equipment and medium.
Background technology
Wire drawing machine is a kind of equipment obtaining required finished product silk thread by drawing and forming, is divided into stretched portion and wire collecting part
Point.Due to wire drawing machine drawing speed quickly, and obtained silk thread is very thin, and general diameter is in 0.1mm hereinafter, therefore carrying out
When receiving silk, if wind-up roll does not well withdraw finished product silk thread, it is easy so that silk thread is pulled off.Winding frequency converter is to wind-up roll
When being controlled, tension swing rod location information is typically fed back to PLC, and (Programmable Logic Controller, can
Programmed logic controller), PID (Proportion Integral Derivative, proportional, integral-derivative are carried out by PLC
Controller) it adjusts, then it is converted into the speed of service or frequency that speed or frequency information further adjust wind-up roll by result is adjusted
Rate.
Traditional way is to pass the transmission ratio of tensile speed and wind-up roll and winder in real time by inputting coil diameter
It is defeated to arrive winding frequency converter, to calculate real-time coil diameter.Traditional winding frequency converter needs to input complicated machinery ginseng when being controlled
Number (tensile speed, transmission ratio), also, when equipment downtime is restarted, coil diameter can with record inconsistent (such as more renew before
When roller), it can cause to start failure.Therefore, traditional winding frequency converter control method haves the shortcomings that operation ease is low.
Invention content
Based on this, it is necessary in view of the above technical problems, provide a kind of wire drawing machine winding frequency converter that operation ease is strong
Control method, device, computer equipment and storage medium.
A kind of wire drawing machine winding frequency converter control method, the method includes：The tension swing rod of wire drawing machine is obtained from minimum
Real time of the point to equalization point；According to the real time and preset measurement parameter, the reality of the wind-up roll of wire drawing machine is obtained
Border coil diameter, the preset measurement parameter include blank coil parameter and completely roll up parameter, and the blank coil parameter is the wind-up roll blank coil
When parameter, the completely volume parameter is parameter of wind-up roll when completely rolling up；According to the practical coil diameter, the blank coil parameter,
Completely volume parameter and the preset control parameters obtain actually required control parameter；According to the actually required control parameter,
Control the wind-up roll operation.
In one embodiment, described according to the real time and preset measurement parameter, obtain wire drawing machine wind-up roll
Practical coil diameter the step of before, further include：When the wind-up roll blank coil of wire drawing machine, wire drawing machine is started with pretrigger frequency, is surveyed
Measure blank coil parameter；When the wind-up roll of wire drawing machine is completely rolled up, wire drawing machine is started with pretrigger frequency, measurement obtains full volume ginseng
Number.
In one embodiment, the blank coil parameter includes blank coil coil diameter and blank coil time, the winding when wire drawing machine
When roller blank coil, wire drawing machine is started with pretrigger frequency, measures the step of obtaining blank coil parameter, including：When wind-up roll blank coil, survey
Measure the blank coil coil diameter of the wind-up roll；Start wire drawing machine with pretrigger frequency, measure obtain the machine tension swing rod of wire drawing from
Blank coil time of the minimum point to equalization point.
In one embodiment, the completely volume parameter includes full coil coil-diameter and completely rolls up the time, the winding when wire drawing machine
When roller is completely rolled up, wire drawing machine is started with pretrigger frequency, measurement obtains full the step of rolling up parameter, including：When wind-up roll is completely rolled up, survey
Measure the full coil coil-diameter of the wind-up roll；Start wire drawing machine with pretrigger frequency, measure obtain the tension swing rod of wire drawing machine from
Full volume time of the minimum point to equalization point.
In one embodiment, the control parameter is pid parameter.
In one embodiment, described according to the actually required control parameter, control the step of the wind-up roll operation
Suddenly, including：PID arithmetic is carried out according to the actually required pid parameter, obtains winding frequency converter output frequency；According to described
Output frequency adjusts the speed of service of wind-up roll.
A kind of wire drawing machine winding frequency converter control device, which is characterized in that described device includes：Real time obtains mould
Block, for obtaining real time of the tension swing rod of wire drawing machine from minimum point to equalization point；Practical coil diameter computing module, according to institute
Real time and preset measurement parameter are stated, the practical coil diameter of the wind-up roll of wire drawing machine, the preset measurement parameter packet are obtained
It includes blank coil parameter and completely rolls up parameter, the parameter when blank coil parameter is the wind-up roll blank coil, the completely volume parameter is described
Parameter when wind-up roll is completely rolled up；Control parameter computing module, for according to the practical coil diameter, the blank coil parameter, described full
Volume parameter and preset control parameters obtain actually required control parameter；Operation control module, for according to described actually required
Control parameter, control wind-up roll operation.
In one embodiment, described device further includes：Blank coil parameter calculating module, for being obtained in the real time
Before module obtains real time of the tension swing rod of wire drawing machine from minimum point to equalization point, when the wind-up roll blank coil of wire drawing machine
When, wire drawing machine is started with pretrigger frequency, measurement obtains blank coil parameter；Parameter calculating module is completely rolled up, for when described practical
Between acquisition module obtain wire drawing machine real time of the tension swing rod from minimum point to equalization point before, when the wind-up roll of wire drawing machine
When completely rolling up, wire drawing machine is started with pretrigger frequency, measurement obtains full volume parameter.
A kind of computer equipment, including memory and processor, the memory are stored with computer program, the processing
The step of device realizes any of the above-described the method when executing the computer program.
A kind of computer readable storage medium, is stored thereon with computer program, and the computer program is held by processor
The step of method described in any one of the above embodiments is realized when row.
Above-mentioned wire drawing winding frequency converter control method, device, computer equipment and medium, by measuring wire drawing machine in reality
It real time of the course of work tension swing rod from minimum point to equalization point, is calculated according to real time and preset measurement parameter
To the practical coil diameter of the wind-up roll of wire drawing machine in practical work process, further according to practical coil diameter and preset control parameters, preset
Measurement parameter can obtain the required control parameter in wire drawing machine real work engineering, thus according to control parameter to wire drawing
The output frequency of the winding frequency converter of machine and the speed of service of wind-up roll are controlled, and wire drawing machine is enable to keep stable operation.
The above method, device, computer equipment and medium need to only measure practical work process tension swing rod from minimum point to equalization point
Real time need not input complicated machinery parameter, and preset control parameters need not be adjusted.With in traditional wire drawing machine
The control of winding frequency converter is compared, and has the advantages that operation ease is high.
Description of the drawings
Fig. 1 is wire drawing machine winding frequency converter control method flow diagram in one embodiment；
Fig. 2 is the tension swing rod motion process schematic diagram of wire drawing machine in one embodiment；
Fig. 3 is that measurement parameter measurement procedure schematic diagram is preset in one embodiment；
Fig. 4 is blank coil operating parameter measurement procedure schematic diagram in one embodiment；
Fig. 5 is completely to roll up operating parameter measurement procedure schematic diagram in one embodiment；
Fig. 6 is the flow diagram of control wind-up roll operation in one embodiment；
Fig. 7 is the structural schematic diagram of wire drawing machine winding frequency converter control device in one embodiment；
Fig. 8 is that measurement parameter measurement structural representation is preset in one embodiment；
Fig. 9 is blank coil operating parameter measurement structural representation in one embodiment；
Figure 10 is completely to roll up operating parameter measurement structural representation in one embodiment；
Figure 11 is the structural schematic diagram of control wind-up roll operation in one embodiment；
Figure 12 is the internal structure chart of one embodiment Computer equipment.
Specific implementation mode
It is with reference to the accompanying drawings and embodiments, right in order to make the object, technical solution and advantage of the application be more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
Referring to Fig. 1, a kind of wire drawing machine winding frequency converter control method, including：
Step S300 obtains real time of the tension swing rod of wire drawing machine from minimum point to equalization point.
Specifically, when wire drawing machine commencement of commercial operation, winding frequency converter, the tension swing rod meeting of wire drawing machine are started with pretrigger frequency
It is moved under the control of winding frequency converter, when recording used when tension swing rod moves to equalization point from minimum point at this time
Between, as real time.By the operation of the pretrigger frequency analog wire drawing machine of setting, pretrigger frequency can be arranged very
It is low.Referring to Fig. 2, when wire drawing machine does not start, tension swing rod is in minimum point, i.e., C1 points shown in figure work as wire drawing machine
When being started with pretrigger frequency, wind-up roll obtains an initial velocity, and wind-up roll simulation life's work state is wound, tension pendulum
Bar moves to equalization point from minimum point accordingly, i.e., D1 points shown in Fig. 2, at this point, the rolling speed and drawing portion of wind-up roll
Tensile speed match.If continuing the output frequency of increasing winding frequency converter, the speed of service of wind-up roll will continue to accelerate,
Tension swing rod can deviate original equilbrium position, and tension swing rod can continue to pull up, until reaching limit, i.e., shown in Fig. 2
D2 points, if being further continued for increasing output frequency, silk thread will be pulled off；If reducing the output frequency of winding frequency converter, tension pendulum
Bar will appear loose situation, finally be fallen from equilbrium position.It is additionally provided with potentiometer on tension swing rod, in tension swing rod from most
When low spot moves to equilbrium position, the variation of current potential can be measured by potentiometer, acquire the transformation period of potentiometer current potential,
It is denoted as time of the tension swing rod from minimum point to equilbrium position.
Further, referring to Fig. 3, further including step S100 and step before step S300 in one embodiment
S200。
Step S100 starts wire drawing machine, measurement obtains blank coil ginseng when the wind-up roll blank coil of wire drawing machine with pretrigger frequency
Number.Specifically, when the wind-up roll blank coil of wire drawing machine, i.e., no silk thread winding is started when on wind-up roll with pretrigger frequency
Wire drawing machine, when the tension swing rod of wire drawing machine is from minimum point to equalization point, when measuring the wind-up roll blank coil operation for obtaining wire drawing machine
Blank coil parameter.Pretrigger frequency be in order to obtain blank coil parameter and before wire drawing machine formally starts, carry out learning process in institute
A frequency being arranged, the very little which can be arranged, the frequency in wire drawing machine practical work process are significantly larger than set
Pretrigger frequency.When the wind-up roll of wire drawing machine is in blank coil state, blank coil is carried out to start wire drawing machine with pretrigger frequency
The measurement of parameter only needs a blank coil parameter measurement for identical wind-up roll.It is appreciated that pretrigger frequency is big
Small is not unique, is calculated as long as can start wire drawing machine and carry out rational blank coil parameter, for different types of
Wind-up roll, used pretrigger frequency are also not necessarily identical.
Step S200 starts wire drawing machine, measurement obtains full volume ginseng when the wind-up roll of wire drawing machine is completely rolled up with pretrigger frequency
Number.Specifically, when the wind-up roll of wire drawing machine is completely rolled up, i.e., when silk thread has been expired in winding on wind-up roll, started with pretrigger frequency and drawn
Silk machine, when the tension swing rod of wire drawing machine is from minimum point to equalization point, the wind-up roll that measurement obtains wire drawing machine is completely rolled up when running
Completely roll up parameter.Likewise, pretrigger frequency is completely to roll up parameter in order to obtain before wire drawing machine formally starts, learning process is carried out
In a set frequency.The size of pretrigger frequency nor fixed, as long as can start wire drawing machine and carry out it is reasonable
Full volume parameter calculate, for different types of wind-up roll, used pretrigger frequency is also not necessarily identical.
Start wire drawing machine by the way that pretrigger frequency is arranged, and then carries out blank coil parameter and completely roll up the measurement of parameter, due to
Pretrigger frequency very little, relative to life's work process, the speed of service of wind-up roll of wire drawing machine etc. is slow, and tension swing rod is from minimum
Potential change of the point to equilbrium position is rapid not as practical work process, is convenient for measuring tension swing rod from minimum point to balance
Time needed for position.
Further, referring to Fig. 4, in one embodiment, step S100 includes step S110 and step S120.
Step S110, when wind-up roll blank coil, measurement obtains the blank coil coil diameter of wind-up roll.Specifically, the winding of wire drawing machine
Roller is in blank coil state, i.e. no silk thread winding obtains the wind-up roll of wire drawing machine at this time straight when on wind-up roll, by measuring
Diameter is denoted as blank coil coil diameter.When carrying out measurement of film reel diameter, infrared measurements or laser optical method may be used, can also be behaviour
Make personnel's directly measurement to obtain blank coil coil diameter or directly acquire blank coil coil diameter corresponding with wind-up roll model used, and will obtain
Blank coil coil diameter input winding frequency converter.The measurement method of coil diameter is not unique, as long as corresponding volume can be obtained reasonably
Diameter.
Step S120 starts wire drawing machine with pretrigger frequency, measures and obtains the machine tension swing rod of wire drawing from minimum point to flat
The blank coil time of weighing apparatus point.Specifically, when wire drawing machine is in blank coil state, wire drawing machine is started with the frequency of a very little so that draw
The tension swing rod of silk machine moves to equalization point from minimum point, measure the tension swing rod of wire drawing machine from minimum point move to equalization point this
One process is denoted as the blank coil time.In one embodiment, the potentiometer of test position, tension swing rod are installed on tension swing rod
When swing current potential meter shaft can and then rotated, and potentiometer rotates to different location and corresponds to different resistance values.Pass through outside
Power supply and bleeder circuit, can export different voltage or current value, winding frequency converter is by detecting the voltage or current value i.e.
It can be mapped to the position of swing rod.When detecting that tension swing rod reaches equalization point, the time used in this process is recorded, it is as empty
Roll up the time.
Blank coil coil diameter and blank coil time when by wire drawing machine wind-up roll blank coil measure, and facilitate follow-up real work
The practical coil diameter of wire drawing machine is calculated in the process.
In one embodiment, referring to Fig. 5, step S200 includes step S210 and step S220.
Step S210, when wind-up roll is completely rolled up, measurement obtains the full coil coil-diameter of wind-up roll.Specifically, the winding of wire drawing machine
Roller is in full volume state, i.e., when silk thread has been expired in winding on wind-up roll, the diameter of the wind-up roll of wire drawing machine at this time is obtained by measurement,
It is denoted as full coil coil-diameter.When carrying out measurement of film reel diameter, infrared measurements or laser optical method may be used, can also be operator
Member, which directly measures, to be obtained full coil coil-diameter or directly acquires full coil coil-diameter corresponding with wind-up roll model used, and is expired what is obtained
Coil coil-diameter inputs winding frequency converter.The measurement method of coil diameter is not unique, as long as corresponding coil diameter can reasonably be obtained i.e.
It can.
Step S220 starts wire drawing machine with pretrigger frequency, measures and obtains the machine tension swing rod of wire drawing from minimum point to flat
The full volume time of weighing apparatus point.Specifically, when wire drawing machine is in full volume state, wire drawing machine is started with the frequency of a very little so that draw
The tension swing rod of silk machine moves to equalization point from minimum point, measure the tension swing rod of wire drawing machine from minimum point move to equalization point this
One process is denoted as the full volume time.Likewise, in one embodiment, when wind-up roll is in full volume state, when tension swing rod is swung
Current potential meter shaft can be made and then to rotate, and potentiometer rotates to different location and corresponds to different resistance values.By externally fed and
Bleeder circuit, can export different voltage or current value, and winding frequency converter can be corresponded to by detecting the voltage or current value
To the position of swing rod.When detecting that tension swing rod reaches equalization point, the time used in this process is recorded, when as completely rolling up
Between.
Full coil coil-diameter and completely volume time when by completely being rolled up to wire drawing machine wind-up roll measure, and facilitate follow-up real work
The practical coil diameter of wire drawing machine is calculated in the process.
Step S400 obtains the practical coil diameter of the wind-up roll of wire drawing machine according to real time and preset measurement parameter.
Preset measurement parameter includes blank coil parameter and completely rolls up parameter, parameter when blank coil parameter is wind-up roll blank coil, full
Volume parameter is parameter when wind-up roll is completely rolled up.When specifically, according to obtained formal startup is measured, the tension swing rod of wire drawing machine from
Minimum point to time and the preset wire drawing machine of equalization point wind-up roll blank coil and completely volume when parameter, formal startup is calculated
When wire drawing machine wind-up roll actual diameter, be denoted as practical coil diameter.Specifically, practical coil diameter can be carried out by following formula
Calculating：
Wherein, rxIndicate practical coil diameter, r2Indicate full coil coil-diameter, r1Indicate blank coil coil diameter, txIndicate real time, t2It indicates
It completely rolls up the time, t1Indicate the blank coil time.
Step S500 obtains actually required control according to preset control parameters, practical coil diameter and preset measurement parameter
Parameter.Specifically, it is completely rolled up with default according to the default blank coil coil diameter in the practical coil diameter and preset parameter parameter being calculated
Coil diameter and preset control parameter, are calculated control parameter needed for practical work process.
Further, in one embodiment, control parameter is pid parameter.Specifically, preset control parameters are joined for PID
Number is divided into default blank coil control parameter and presets and completely rolls up control parameter.Specifically, it is calculated according to following formula current desired
Control parameter：
Wherein, kxIndicate current desired control parameter, k1Indicate blank coil control parameter, k2Control parameter, r are completely rolled up in expressionx
Indicate practical coil diameter, r2Indicate full coil coil-diameter, r1Indicate blank coil coil diameter.
Further, preset blank coil control parameter and default completely volume control parameter respectively include again preset ratio coefficient,
Default differential coefficient and default integral coefficient, actually required proportional plus integral control parameter is calculated according to following formula：
Wherein, kpxIndicate actually required ratio control parameter, kp1Indicate blank coil ratio control parameter, kp2Indicate full volume
Ratio control parameter.
Using same method, actually required integration control parameter k can be calculatedixWith actually required differential control
Parameter k processeddx。
Step S600, according to actually required control parameter, control wind-up roll operation.
Specifically, it is obtained by calculation after current desired pid control parameter, according to obtained parameter, wire drawing machine
Winding frequency converter export corresponding with obtained parameter frequency, further control wire drawing machine wind-up roll is moved.
Further, referring to Fig. 6, in one embodiment, step S600 includes step S610 and step S620.
Step S610 carries out PID arithmetic according to actually required pid parameter, obtains winding frequency converter output frequency.Specifically
Ground, winding frequency converter carry out corresponding PID calculating, obtain opposite with pid parameter according to obtained actually required pid parameter
The output frequency answered, winding frequency converter device control wind-up roll by obtained output frequency.
Step S620 adjusts the speed of service of wind-up roll according to output frequency.Specifically, it during commencement of commercial operation, draws
The wind-up roll that silk machine transmits stretched obtained silk thread with certain speed, wind-up roll will with corresponding speed to silk thread into
Row winding, according to the different of winding frequency converter output frequency, wind-up roll is run at different rates, is wound to silk thread.
When the wind-up roll speed of service is excessively slow, excessive silk can relax, and tension swing rod will leave equilbrium position under the effect of gravity
It falls down；When the wind-up roll speed of service is too fast, tension swing rod will up move under the tension force effect of silk, reach limit, and
And finally silk is broken.According to the output frequency that PID arithmetic, output match with current wind-up roll state, winding can be controlled
Roller is maintained at equilbrium position and nearby runs.
Above-mentioned wire drawing winding frequency converter control method, by measuring wire drawing machine in practical work process tension swing rod from minimum
Wire drawing machine in practical work process is calculated according to real time and preset measurement parameter to the real time of equalization point in point
The practical coil diameter of wind-up roll can obtain wire drawing machine further according to practical coil diameter and preset control parameters, preset measurement parameter
Required control parameter in real work engineering, thus according to control parameter to the output frequency of the winding frequency converter of wire drawing machine
It is controlled with the speed of service of wind-up roll, wire drawing machine is enable to keep stable operation.The above method, device, computer equipment
And medium need to only measure real time of the practical work process tension swing rod from minimum point to equalization point, need not input complicated machine
Preset control parameters need not be adjusted in tool parameter.Compared with the control of winding frequency converter in traditional wire drawing machine, have
The high advantage of operation ease.
Referring to Fig. 7, a kind of wire drawing machine winding frequency converter control device, including：Real time acquisition module 300, reality
Coil diameter computing module 400, control parameter computing module 500 and motion-control module 600.
Real time acquisition module 300, when for obtaining practical from minimum point to equalization point of the tension swing rod of wire drawing machine
Between.Specifically, when wire drawing machine commencement of commercial operation, winding frequency converter is started with pretrigger frequency, the tension swing rod of wire drawing machine can received
It rolls up and is moved under the control of frequency converter, record the time used when tension swing rod moves to equalization point from minimum point at this time,
The as real time.By the operation of the pretrigger frequency analog wire drawing machine of setting, pretrigger frequency can be arranged very low.Please
Referring to Fig.2, when wire drawing machine does not start, tension swing rod is in minimum point, i.e., C1 points shown in figure, when wire drawing machine to open in advance
When dynamic frequency starts, wind-up roll obtains an initial velocity, and wind-up roll simulation life's work state is wound, and tension swing rod is corresponding
Slave minimum point move to equalization point, i.e., D1 points shown in Fig. 2, at this point, the stretching of the rolling speed and drawing portion of wind-up roll
What speed matched.If continuing the output frequency of increasing winding frequency converter, the speed of service of wind-up roll will continue to accelerate, tension pendulum
Bar can deviate original equilbrium position, and tension swing rod can continue to pull up, and be limited until reaching, i.e., D2 points shown in Fig. 2,
If being further continued for increasing output frequency, silk thread will be pulled off；If reducing the output frequency of winding frequency converter, tension swing rod will appear
Loose situation, finally falls from equilbrium position.It is additionally provided with potentiometer on tension swing rod, is moved from minimum point in tension swing rod
When to equilbrium position, the variation of current potential can be measured by potentiometer, acquired the transformation period of potentiometer current potential, be denoted as tension
Time of the swing rod from minimum point to equilbrium position.
Further, 8 are please referred to, in one embodiment, which further includes blank coil parameter calculating module 100 and full volume
Parameter calculating module 200.
Blank coil parameter calculating module 100, for obtaining the tension swing rod of wire drawing machine in real time acquisition module 300 from most
Before low spot to the real time of equalization point, when the wind-up roll blank coil of wire drawing machine, wire drawing machine is started with pretrigger frequency, is measured
Obtain blank coil parameter.Specifically, when the wind-up roll blank coil of wire drawing machine, i.e., no silk thread winding is when on wind-up roll, to open in advance
Dynamic frequency starts wire drawing machine, and when the tension swing rod of wire drawing machine is from minimum point to equalization point, measurement obtains the wind-up roll of wire drawing machine
Blank coil parameter when blank coil is run.Pretrigger frequency be in order to obtain blank coil parameter and before wire drawing machine formally starts, learned
A set frequency during practising, the very little which can be arranged, the frequency in wire drawing machine practical work process is much
Higher than set pretrigger frequency.When the wind-up roll of wire drawing machine is in blank coil state, wire drawing is started with pretrigger frequency
Machine carries out the measurement of blank coil parameter, only needs a blank coil parameter measurement for identical wind-up roll.It is appreciated that opening in advance
The size of dynamic frequency is not unique, is calculated as long as can start wire drawing machine and carry out rational blank coil parameter, for
Different types of wind-up roll, used pretrigger frequency are also not necessarily identical.
Parameter calculating module 200 is completely rolled up, for obtaining the tension swing rod of wire drawing machine in real time acquisition module 300 from most
Before low spot to the real time of equalization point, when the wind-up roll of wire drawing machine is completely rolled up, wire drawing machine is started with pretrigger frequency, is measured
Obtain full volume parameter.Specifically, when the wind-up roll of wire drawing machine is completely rolled up, i.e., when silk thread has been expired in winding on wind-up roll, with pretrigger
Frequency starts wire drawing machine, and when the tension swing rod of wire drawing machine is from minimum point to equalization point, the wind-up roll that measurement obtains wire drawing machine is full
Full volume parameter when volume operation.Likewise, pretrigger frequency be completely roll up parameter in order to obtain and before wire drawing machine formally starts, into
A set frequency in row learning process.The size of pretrigger frequency is nor fixed, as long as can start wire drawing machine
And carry out rational completely volume parameter and calculate, for different types of wind-up roll, used pretrigger frequency is also not necessarily
It is identical.
Start wire drawing machine by the way that pretrigger frequency is arranged, and then carries out blank coil parameter and completely roll up the measurement of parameter, due to
Pretrigger frequency very little, relative to life's work process, the speed of service of wind-up roll of wire drawing machine etc. is slow, and tension swing rod is from minimum
Potential change of the point to equilbrium position is rapid not as practical work process, is convenient for measuring tension swing rod from minimum point to balance
Time needed for position.
Further, referring to Fig. 9, in one embodiment, blank coil parameter calculating module 100 is surveyed including blank coil coil diameter
Measure unit 110 and blank coil time measuring unit 120.
Blank coil measurement of film reel diameter unit 110, for when wind-up roll blank coil, measurement to obtain the blank coil coil diameter of wind-up roll.Specifically
The wind-up roll on ground, wire drawing machine is in blank coil state, i.e., no silk thread winding obtains wire drawing machine when on wind-up roll by measuring
The diameter of wind-up roll at this time, is denoted as blank coil coil diameter.When carrying out measurement of film reel diameter, infrared measurements or laser measurement may be used
Method can also be that operating personnel's directly measurement obtains blank coil coil diameter or directly acquires blank coil corresponding with wind-up roll model used
Coil diameter, and obtained blank coil coil diameter is inputted into winding frequency converter.The measurement method of coil diameter is not unique, as long as can be reasonable
Obtain corresponding coil diameter.
Blank coil time measuring unit 120 measures for starting wire drawing machine with pretrigger frequency and obtains the machine tension pendulum of wire drawing
Blank coil time of the bar from minimum point to equalization point.Specifically, when wire drawing machine is in blank coil state, started with the frequency of a very little
Wire drawing machine so that the tension swing rod of wire drawing machine moves to equalization point from minimum point, measures the tension swing rod of wire drawing machine from minimum point
Equalization point this process is moved to, the blank coil time is denoted as.In one embodiment, the electricity of test position is installed on tension swing rod
When swinging current potential meter shaft can and then rotated for position meter, tension swing rod, and potentiometer rotates to different location and corresponds to different electricity
Resistance value.By externally fed and bleeder circuit, different voltage or current value can be exported, winding frequency converter is by detecting the electricity
Pressure or current value are the position that can be mapped to swing rod.When detecting that tension swing rod reaches equalization point, this process institute is recorded
With time, as blank coil time.Blank coil coil diameter and blank coil time when by wire drawing machine wind-up roll blank coil measure, convenient
The practical coil diameter of wire drawing machine is calculated in follow-up practical work process.
Referring to Fig. 10, in one embodiment, it includes full coil coil-diameter measuring unit 210 completely to roll up parameter calculating module 200
With full coil coil-diameter measuring unit 220.
Full coil coil-diameter measuring unit 210, for when wind-up roll is completely rolled up, measurement to obtain the full coil coil-diameter of wind-up roll.Specifically
The wind-up roll on ground, wire drawing machine is in full volume state, i.e., when silk thread has been expired in winding on wind-up roll, the receipts of wire drawing machine are obtained by measuring
The diameter of winding up roller at this time, is denoted as full coil coil-diameter.When carrying out measurement of film reel diameter, infrared measurements or laser measurement may be used
Method can also be that operating personnel directly measure and obtain full coil coil-diameter or directly acquire full volume corresponding with wind-up roll model used
Coil diameter, and obtained full coil coil-diameter is inputted into winding frequency converter.The measurement method of coil diameter is not unique, as long as can be reasonable
Obtain corresponding coil diameter.
Full coil coil-diameter measuring unit 220 measures for starting wire drawing machine with pretrigger frequency and obtains the machine tension pendulum of wire drawing
Full volume time of the bar from minimum point to equalization point.Specifically, when wire drawing machine is in full volume state, started with the frequency of a very little
Wire drawing machine so that the tension swing rod of wire drawing machine moves to equalization point from minimum point, measures the tension swing rod of wire drawing machine from minimum point
Equalization point this process is moved to, the full volume time is denoted as.Likewise, in one embodiment, when wind-up roll is in full volume state,
When swinging current potential meter shaft can and then rotated tension swing rod, and potentiometer rotates to different location and corresponds to different resistance values.
By externally fed and bleeder circuit, different voltage or current value can be exported, winding frequency converter by detect the voltage or
Current value is the position that can be mapped to swing rod.When detecting that tension swing rod reaches equalization point, this process institute's used time is recorded
Between, as completely roll up the time.Full coil coil-diameter and completely volume time when by completely being rolled up to wire drawing machine wind-up roll measure, convenient follow-up
The practical coil diameter of wire drawing machine is calculated in practical work process.
Practical coil diameter computing module 400, for according to real time and preset measurement parameter, obtaining the winding of wire drawing machine
The practical coil diameter of roller.
Preset measurement parameter includes blank coil parameter and completely rolls up parameter, parameter when blank coil parameter is wind-up roll blank coil, full
Volume parameter is parameter when wind-up roll is completely rolled up.When specifically, according to obtained formal startup is measured, the tension swing rod of wire drawing machine from
Minimum point to time and the preset wire drawing machine of equalization point wind-up roll blank coil and completely volume when parameter, formal startup is calculated
When wire drawing machine wind-up roll actual diameter, be denoted as practical coil diameter.Specifically, practical coil diameter can be carried out by following formula
Calculating：
Wherein, rxIndicate practical coil diameter, r2Indicate full coil coil-diameter, r1Indicate blank coil coil diameter, txIndicate real time, t2It indicates
It completely rolls up the time, t1Indicate the blank coil time.
Control parameter computing module 500, for being obtained according to preset control parameters, practical coil diameter and preset measurement parameter
Actually required control parameter.Specifically, according to the default blank coil in the practical coil diameter and preset parameter parameter being calculated
Coil diameter and default full coil coil-diameter and preset control parameter, are calculated control parameter needed for practical work process.
Further, in one embodiment, control parameter is pid parameter.Specifically, preset control parameters are joined for PID
Number is divided into default blank coil control parameter and presets and completely rolls up control parameter.Specifically, it is calculated according to following formula current desired
Control parameter：
Wherein, kxIndicate current desired control parameter, k1Indicate blank coil control parameter, k2Control parameter, r are completely rolled up in expressionx
Indicate practical coil diameter, r2Indicate full coil coil-diameter, r1Indicate blank coil coil diameter.
Further, preset blank coil control parameter and default completely volume control parameter respectively include again preset ratio coefficient,
Default differential coefficient and default integral coefficient, actually required proportional plus integral control parameter is calculated according to following formula：
Wherein, kpxIndicate actually required ratio control parameter, kp1Indicate blank coil ratio control parameter, kp2Indicate full volume
Ratio control parameter.
Using same method, actually required integration control parameter k can be calculatedixWith actually required differential control
Parameter k processeddx。
Operation control module 600, for according to actually required control parameter, control wind-up roll operation.
Specifically, it is obtained by calculation after current desired pid control parameter, according to obtained parameter, wire drawing machine
Winding frequency converter export corresponding with obtained parameter frequency, further control wire drawing machine wind-up roll is moved.
Further, 1 is please referred to Fig.1, in one embodiment, operation control module 600 includes PID computing units 610
Unit 620 is adjusted with the speed of service.
It is defeated to obtain winding frequency converter for carrying out PID arithmetic according to actually required pid parameter for PID computing units 610
Go out frequency.Specifically, winding frequency converter carries out corresponding PID calculating according to obtained actually required pid parameter, obtain with
The corresponding output frequency of pid parameter, winding frequency converter device control wind-up roll by obtained output frequency.
The speed of service adjusts unit 620, the speed of service for adjusting wind-up roll according to output frequency.Specifically, just
In formula operational process, the wind-up roll that wire drawing machine transmits stretched obtained silk thread with certain speed, wind-up roll will be with phase
The speed answered winds silk thread, and according to the different of winding frequency converter output frequency, wind-up roll is run at different rates,
Silk thread is wound.When the wind-up roll speed of service is excessively slow, excessive silk can relax, and tension swing rod will be in gravity
Under leave equilbrium position and fall down；When the wind-up roll speed of service is too fast, tension swing rod will up be transported under the tension force effect of silk
It is dynamic, reach limit, and finally break silk.According to PID arithmetic, the output that output matches with current wind-up roll state is frequently
Rate can control wind-up roll and be maintained at equilbrium position operation nearby.
Above-mentioned wire drawing winding frequency converter control device, by measuring wire drawing machine in practical work process tension swing rod from minimum
Wire drawing machine in practical work process is calculated according to real time and preset measurement parameter to the real time of equalization point in point
The practical coil diameter of wind-up roll can obtain wire drawing machine further according to practical coil diameter and preset control parameters, preset measurement parameter
Required control parameter in real work engineering, thus according to control parameter to the output frequency of the winding frequency converter of wire drawing machine
It is controlled with the speed of service of wind-up roll, wire drawing machine is enable to keep stable operation.The above method, device, computer equipment
And medium need to only measure real time of the practical work process tension swing rod from minimum point to equalization point, need not input complicated machine
Preset control parameters need not be adjusted in tool parameter.Compared with the control of winding frequency converter in traditional wire drawing machine, have
The high advantage of operation ease.
In one embodiment, a kind of computer equipment is provided, which can be server, internal junction
Composition is shown in Fig.12.The computer equipment include the processor connected by system bus, memory, network interface and
Database.Wherein, the processor of the computer equipment is for providing calculating and control ability.The memory packet of the computer equipment
Include non-volatile memory medium, built-in storage.The non-volatile memory medium is stored with operating system, computer program and data
Library.The built-in storage provides environment for the operation of operating system and computer program in non-volatile memory medium.The calculating
The network interface of machine equipment is used to communicate by network connection with external terminal.When the computer program is executed by processor with
Realize a kind of wire drawing machine winding frequency converter control method.
It will be understood by those skilled in the art that structure shown in Figure 12, only with the relevant part of application scheme
The block diagram of structure, does not constitute the restriction for the computer equipment being applied thereon to application scheme, and specific computer is set
Standby may include either combining certain components than more or fewer components as shown in the figure or being arranged with different components.
In one embodiment, a kind of computer equipment, including memory and processor are provided, is stored in memory
Computer program, the processor realize following steps when executing computer program：
Obtain real time of the tension swing rod of wire drawing machine from minimum point to equalization point；
Root real time and preset measurement parameter obtain the practical coil diameter of the wind-up roll of wire drawing machine, preset measurement ginseng
Number includes blank coil parameter and completely rolls up parameter, parameter when blank coil parameter is wind-up roll blank coil, when completely volume parameter is that wind-up roll is completely rolled up
Parameter；
Actually required control parameter is obtained according to practical coil diameter, blank coil parameter, completely volume parameter and preset control parameters；
According to actually required control parameter, control wind-up roll operation.
In one embodiment, following steps are also realized when processor executes computer program：
When the wind-up roll blank coil of wire drawing machine, wire drawing machine is started with pretrigger frequency, measurement obtains blank coil parameter；
When the wind-up roll of wire drawing machine is completely rolled up, wire drawing machine is started with pretrigger frequency, measurement obtains full volume parameter.
In one embodiment, following steps are also realized when processor executes computer program：
When wind-up roll blank coil, measurement obtains the blank coil coil diameter of wind-up roll；
Start wire drawing machine with pretrigger frequency, measures blank coil of the machine tension swing rod for obtaining wire drawing from minimum point to equalization point
Time.
In one embodiment, following steps are also realized when processor executes computer program：
When wind-up roll is completely rolled up, measurement obtains the full coil coil-diameter of wind-up roll；
Start wire drawing machine with pretrigger frequency, measures full volume of the tension swing rod for obtaining wire drawing machine from minimum point to equalization point
Time.
In one embodiment, following steps are also realized when processor executes computer program：
PID arithmetic is carried out according to actually required pid parameter, obtains winding frequency converter output frequency；
The speed of service of wind-up roll is adjusted according to output frequency.
In one embodiment, a kind of computer readable storage medium is provided, computer program is stored thereon with, is calculated
Machine program realizes following steps when being executed by processor：
Obtain real time of the tension swing rod of wire drawing machine from minimum point to equalization point；
Root real time and preset measurement parameter obtain the practical coil diameter of the wind-up roll of wire drawing machine, preset measurement ginseng
Number includes blank coil parameter and completely rolls up parameter, parameter when blank coil parameter is wind-up roll blank coil, when completely volume parameter is that wind-up roll is completely rolled up
Parameter；
Actually required control parameter is obtained according to practical coil diameter, blank coil parameter, completely volume parameter and preset control parameters；
According to actually required control parameter, control wind-up roll operation.
In one embodiment, following steps are also realized when computer program is executed by processor：
When the wind-up roll blank coil of wire drawing machine, wire drawing machine is started with pretrigger frequency, measurement obtains blank coil parameter；
When the wind-up roll of wire drawing machine is completely rolled up, wire drawing machine is started with pretrigger frequency, measurement obtains full volume parameter.
In one embodiment, following steps are also realized when computer program is executed by processor：
When wind-up roll blank coil, measurement obtains the blank coil coil diameter of wind-up roll；
Start wire drawing machine with pretrigger frequency, measures blank coil of the machine tension swing rod for obtaining wire drawing from minimum point to equalization point
Time.
In one embodiment, following steps are also realized when computer program is executed by processor：
When wind-up roll is completely rolled up, measurement obtains the full coil coil-diameter of wind-up roll；
Start wire drawing machine with pretrigger frequency, measures full volume of the tension swing rod for obtaining wire drawing machine from minimum point to equalization point
Time.
In one embodiment, following steps are also realized when computer program is executed by processor：
PID arithmetic is carried out according to actually required pid parameter, obtains winding frequency converter output frequency；
The speed of service of wind-up roll is adjusted according to output frequency.
Above computer equipment and medium, by measuring wire drawing machine in practical work process tension swing rod from minimum point to flat
The real time of weighing apparatus point, the winding of wire drawing machine in practical work process is calculated according to real time and preset measurement parameter
The practical coil diameter of roller can obtain the practical work of wire drawing machine further according to practical coil diameter and preset control parameters, preset measurement parameter
Make the required control parameter in engineering, thus the output frequency according to control parameter to the winding frequency converter of wire drawing machine and winding
The speed of service of roller is controlled, and wire drawing machine is enable to keep stable operation.The above method, device, computer equipment and medium
Real time of the practical work process tension swing rod from minimum point to equalization point only need to be measured, complicated machinery ginseng need not be inputted
Number, need not be adjusted preset control parameters.Compared with the control of winding frequency converter in traditional wire drawing machine, there is operation
The high advantage of convenience.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein,
Any reference to memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of above example can be combined arbitrarily, to keep description succinct, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield is all considered to be the range of this specification record.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, under the premise of not departing from the application design, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the protection domain of the application patent should be determined by the appended claims.
Claims (10)
1. a kind of wire drawing machine winding frequency converter control method, which is characterized in that the method includes：
Obtain real time of the tension swing rod of wire drawing machine from minimum point to equalization point；
According to the real time and preset measurement parameter, the practical coil diameter of the wind-up roll of wire drawing machine is obtained, it is described preset
Measurement parameter includes blank coil parameter and completely rolls up parameter, the parameter when blank coil parameter is the wind-up roll blank coil, the full volume
Parameter is the parameter when wind-up roll is completely rolled up；
Actually required control is obtained according to the practical coil diameter, the blank coil parameter, completely volume parameter and the preset control parameters
Parameter processed；
According to the actually required control parameter, the wind-up roll operation is controlled.
2. wire drawing machine winding frequency converter control method according to claim 1, which is characterized in that described according to the reality
Time and preset measurement parameter further include before the step of obtaining the practical coil diameter of wire drawing machine wind-up roll：
When the wind-up roll blank coil of wire drawing machine, wire drawing machine is started with pretrigger frequency, measurement obtains blank coil parameter；
When the wind-up roll of wire drawing machine is completely rolled up, wire drawing machine is started with pretrigger frequency, measurement obtains full volume parameter.
3. wire drawing machine winding frequency converter control method according to claim 2, which is characterized in that the blank coil parameter includes
It is blank coil coil diameter and blank coil time, described when the wind-up roll blank coil of wire drawing machine, wire drawing machine is started with pretrigger frequency, measurement obtains
The step of blank coil parameter, including：
When wind-up roll blank coil, measurement obtains the blank coil coil diameter of the wind-up roll；
Start wire drawing machine with pretrigger frequency, when measuring blank coil of the machine tension swing rod for obtaining wire drawing from minimum point to equalization point
Between.
4. wire drawing machine winding frequency converter control method according to claim 2, which is characterized in that it is described completely volume parameter include
Expire coil coil-diameter and completely rolls up the time, it is described when the wind-up roll of wire drawing machine is completely rolled up, wire drawing machine is started with pretrigger frequency, measurement obtains
The step of completely rolling up parameter, including：
When wind-up roll is completely rolled up, measurement obtains the full coil coil-diameter of the wind-up roll；
Start wire drawing machine with pretrigger frequency, when measuring full volume of the tension swing rod for obtaining wire drawing machine from minimum point to equalization point
Between.
5. wire drawing machine winding frequency converter control method according to claim 1, which is characterized in that the control parameter is
Pid parameter.
6. wire drawing machine winding frequency converter control method according to claim 5, which is characterized in that described according to the reality
Required control parameter controls the step of wind-up roll is run, including：
PID arithmetic is carried out according to the actually required pid parameter, obtains winding frequency converter output frequency；
The speed of service of wind-up roll is adjusted according to the output frequency.
7. a kind of wire drawing machine winding frequency converter control device, which is characterized in that described device includes：
Real time acquisition module, for obtaining real time of the tension swing rod of wire drawing machine from minimum point to equalization point；
Practical coil diameter computing module obtains the reality of the wind-up roll of wire drawing machine according to the real time and preset measurement parameter
Border coil diameter, the preset measurement parameter include blank coil parameter and completely roll up parameter, and the blank coil parameter is the wind-up roll blank coil
When parameter, the completely volume parameter is parameter of wind-up roll when completely rolling up；
Control parameter computing module, for according to the practical coil diameter, the blank coil parameter, completely volume parameter and the default control
Parameter obtains actually required control parameter；
Operation control module, for according to the actually required control parameter, controlling the wind-up roll operation.
8. wire drawing machine winding frequency converter control device according to claim 7, which is characterized in that described device further includes：
Blank coil parameter calculating module, for the real time acquisition module obtain wire drawing machine tension swing rod from minimum point to
Before the real time of equalization point, when the wind-up roll blank coil of wire drawing machine, wire drawing machine is started with pretrigger frequency, measurement obtains sky
Roll up parameter；
Completely roll up parameter calculating module, for the real time acquisition module obtain wire drawing machine tension swing rod from minimum point to
Before the real time of equalization point, when the wind-up roll of wire drawing machine is completely rolled up, wire drawing machine is started with pretrigger frequency, measurement is expired
Roll up parameter.
9. a kind of computer equipment, including memory and processor, the memory are stored with computer program, feature exists
In when the processor executes the computer program the step of any one of realization claim 1 to 6 the method.
10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program
The step of method according to any one of claims 1 to 6 is realized when being executed by processor.
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| CN201810164190.9A CN108681237B (en) | 2018-02-27 | 2018-02-27 | Control method and device for winding frequency converter of wire drawing machine, computer equipment and medium |
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|---|---|---|---|
| CN201810164190.9A CN108681237B (en) | 2018-02-27 | 2018-02-27 | Control method and device for winding frequency converter of wire drawing machine, computer equipment and medium |
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Cited By (8)
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| CN109343407A (en) * | 2018-10-26 | 2019-02-15 | 苏州安驰控制系统有限公司 | A kind of method, driving control system and the relevant apparatus of wire drawing machine control |
| CN109634149A (en) * | 2018-12-20 | 2019-04-16 | 深圳市英威腾电气股份有限公司 | A kind of control method, system, equipment and the storage medium of wire drawing machine frequency converter |
| CN109647925A (en) * | 2018-12-20 | 2019-04-19 | 贵州航天南海科技有限责任公司 | A kind of wire drawing machine winding control method |
| CN110764404A (en) * | 2019-09-25 | 2020-02-07 | 长沙市日业电气有限公司 | PID parameter self-adaptive wire drawing machine frequency converter debugging method |
| CN111496011A (en) * | 2020-04-08 | 2020-08-07 | 深圳市海浦蒙特科技有限公司 | Speed control method and device for winding motor of wire drawing machine, computer equipment and medium |
| CN112060770A (en) * | 2020-09-03 | 2020-12-11 | 武汉华茂自动化股份有限公司 | Winding circumference measuring method and system for dry recovery machine |
| CN113428733A (en) * | 2021-08-27 | 2021-09-24 | 南通顺尔盛纺织科技有限公司 | Spinning winding mechanism based on Internet of things big data technology |
| CN116890038A (en) * | 2023-08-25 | 2023-10-17 | 孚瑞肯电气(深圳)有限公司 | Method and device for rapidly stopping winding frequency converter of wire drawing machine |
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| CN111496011A (en) * | 2020-04-08 | 2020-08-07 | 深圳市海浦蒙特科技有限公司 | Speed control method and device for winding motor of wire drawing machine, computer equipment and medium |
| CN112060770A (en) * | 2020-09-03 | 2020-12-11 | 武汉华茂自动化股份有限公司 | Winding circumference measuring method and system for dry recovery machine |
| CN113428733A (en) * | 2021-08-27 | 2021-09-24 | 南通顺尔盛纺织科技有限公司 | Spinning winding mechanism based on Internet of things big data technology |
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| CN116890038A (en) * | 2023-08-25 | 2023-10-17 | 孚瑞肯电气(深圳)有限公司 | Method and device for rapidly stopping winding frequency converter of wire drawing machine |
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