CN105215066A - Wire drawing machine system and method for controlling frequency conversion, length of string computational methods and device - Google Patents
Wire drawing machine system and method for controlling frequency conversion, length of string computational methods and device Download PDFInfo
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Abstract
A kind of wire drawing machine system and method for controlling frequency conversion, length of string computational methods and device, wherein, PLC is connected with each frequency converter by high-frequency impulse input line, given for carrying out frequency by high-frequency pulse signal to frequency converter.Can system line be reduced, reduce interference, simplify electrical structure.Further, the wire drawing machine for the rotary drum of varying number can adopt identical PLC control program and man-machine interface program, thus reduces managerial burden.In method for controlling frequency conversion and device, PLC, according to mechanical parameter at different levels, calculates the ratio of every grade of frequency converter running frequency, then exports high-frequency pulse signal according to the wire drawing linear velocity of setting and host groups parameter.Frequency converter at different levels, according to HDI ratio value and this high-frequency pulse signal, obtains different running frequencies.Thus make equipment by the linear velocity synchronous operation of setting.In these length of string computational methods and device, do not need to use extra auxiliary equipment to calculate length of string, and result of calculation is accurate.
Description
Technical field
The application relates to metal drawing field, is specifically related to a kind of wire drawing machine system and method for controlling frequency conversion, length of string computational methods and device.
Background technology
Straight drawing machine adopts PLC (ProgrammableLogicController, programmable logic controller (PLC)) control mode usually.In PLC control mode, each rotary drum needs a frequency converter to carry out speed governing, and every platform frequency converter needs an analog quantity channel to carry out speed governing.Like this, when wire drawing machine has n platform rotary drum, just there is n platform frequency converter, and need n analog output channel of PLC.There is shortcomings below in this control mode: system cost is high, and PLC program is complicated; Need wire many, be easily interfered; Each analog quantity drift is different, and during low speed, frequency converter speed is asynchronous; All frequency converters separately control, so the given synchronism of frequency converter master is not high.
For straight drawing machine, be all adopt to calculate the length that wheel (proximity switch or encoder) calculates wire drawing.This just increases the complexity of device systems, and wire increases, and be easily interfered cause calculate inaccurate.
In addition, in existing straight drawing machine scheme, the PLC control program that the wire drawing machine of the rotary drum of varying number adopts is all different with man-machine interface (HMI) program, so equipment vendor easily mixes up unrest when managing PLC and HMI program, increases managerial burden.
Summary of the invention
The application provides a kind of wire drawing machine system and method for controlling frequency conversion, length of string computational methods and device, solves in prior art, the problem that wire drawing machine system complex structure, different wire drawing unit frequency converter speed sync are poor, system administrative burden is heavy.
According to the first aspect of the application, this application provides a kind of wire drawing machine system, comprise wire drawing machine main equipment, described wire drawing machine main equipment comprises unwrapping wire unit successively, and many group wire drawing units, and take up unit, also comprise:
The frequency converter respectively corresponding with often organizing wire drawing unit, take up unit, described frequency converter is connected with the motor of wire drawing unit or take up unit, for controlling the rotating speed of motor;
PLC, it is connected with described frequency converter by high-frequency impulse input line, given for carrying out frequency by high-frequency pulse signal to frequency converter.
In one embodiment, described PLC is also connected with described frequency converter by bus, for carrying out communication with frequency converter.
In one embodiment, described PLC also for obtaining the travel line speed of host groups in many group wire drawing units, being carried out integration to described linear velocity and being obtained length of string.
In one embodiment, also comprise for drawing the cylinder fork with speed stabilizing from unit in many group wire drawing units; Described cylinder fork is also provided with the potentiometer connected with each frequency converter corresponding from unit; Described potentiometer is used for producing the feedback signal of voltage signal as frequency converter according to the position of cylinder fork; Described frequency converter also for being compensated frequency according to described feedback signal, and is added in the running frequency of PLC transmission, as the actual motion frequency of frequency converter.
In one embodiment, described high-frequency impulse input line has two groups, one group for connecting the frequency converter of PLC and each wire drawing unit, another group is for connecting the frequency converter of PLC and take up unit.
In one embodiment, described wire drawing machine system also comprises the human-computer interaction device be connected with PLC, for showing the parameter of information and acquisition user input.
In the wire drawing machine system that the application provides, PLC is connected with each frequency converter by high-frequency impulse input line, given for carrying out frequency by high-frequency pulse signal to frequency converter.Thus avoid needing for each frequency converter arranges an analog quantity channel, reduce system line, reduce interference, simplify electrical structure.Further, the wire drawing machine for the rotary drum of varying number can adopt identical PLC control program and man-machine interface (HMI, HumanMachineInterface) program, thus reduces managerial burden.
According to the second aspect of the application, this application provides a kind of wire drawing machine method for controlling frequency conversion based on above-mentioned wire drawing machine system, comprising:
Obtain the mechanical parameter of each wire drawing unit; Described mechanical parameter comprises the diameter of mould in wire drawing unit, the diameter of rotary drum, the magnetic pole logarithm of motor and mechanical reduction ratio;
According to quantity and the enable situation of wire drawing unit, determine host groups and from unit;
According to the mechanical parameter of each wire drawing unit, obtain the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication;
The frequency of high-frequency pulse signal is calculated according to the wire drawing linear velocity of setting and the mechanical parameter of host groups;
Described high-frequency pulse signal is sent to the frequency calculated the frequency converter that each wire drawing unit is corresponding;
The frequency converter that each wire drawing unit is corresponding exports its running frequency according to described high-frequency pulse signal and corresponding frequency proportions.
According to the third aspect of the application, this application provides a kind of wire drawing machine frequency-converting control device based on above-mentioned wire drawing machine system, it is characterized in that, comprising:
First information acquisition module, for obtaining the mechanical parameter of each wire drawing unit; Described mechanical parameter comprises the diameter of mould in wire drawing unit, the diameter of rotary drum, the magnetic pole logarithm of motor and mechanical reduction ratio;
Host definition module, for according to the quantity of wire drawing unit and enable situation, determines host groups and from unit;
Frequency proportions computing module, for the mechanical parameter according to each wire drawing unit, obtains the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication;
Frequency computation part module, for calculating the frequency of high-frequency pulse signal according to the wire drawing linear velocity of setting and the mechanical parameter of host groups;
The given module of frequency, for sending to the frequency calculated the frequency converter that each wire drawing unit is corresponding by described high-frequency pulse signal.
In the method for controlling frequency conversion of the wire drawing machine system that the application provides and device, first according to the mechanical parameter of each wire drawing unit, obtain the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication; The frequency of high-frequency pulse signal is calculated again according to the wire drawing linear velocity of setting and the mechanical parameter of host groups; Afterwards high-frequency pulse signal is sent to the frequency calculated the frequency converter that each wire drawing unit is corresponding; The frequency converter that each wire drawing unit is corresponding exports its running frequency according to high-frequency pulse signal and corresponding frequency proportions.Thus make can be corresponding with host groups from the speed of frequency converter corresponding to unit the speed sync of frequency converter.
According to the fourth aspect of the application, this application provides a kind of length of string computational methods based on above-mentioned wire drawing machine system, it is characterized in that, comprising:
Obtain the travel line speed of host groups in many group wire drawing units;
Integration is carried out to described linear velocity and obtains length of string.
According to the 5th aspect of the application, this application provides a kind of length of string calculation element based on above-mentioned wire drawing machine system, it is characterized in that, comprising:
Data obtaining module, for obtaining the travel line speed of host groups in many group wire drawing units;
Integration module, obtains length of string for carrying out integration to described linear velocity.
In the length of string computational methods that the application provides and device, do not need to use extra auxiliary equipment to calculate length of string, and result of calculation is accurate.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the wire drawing machine main equipment of wire drawing machine system in a kind of embodiment of the application;
Fig. 2 is the schematic diagram of wire drawing machine system in a kind of embodiment of the application;
Fig. 3 is the schematic flow sheet of wire drawing machine method for controlling frequency conversion in a kind of embodiment of the application;
Fig. 4 is the module diagram of wire drawing machine frequency-converting control device in a kind of embodiment of the application;
Fig. 5 is the schematic flow sheet of length of string computational methods in a kind of embodiment of the application;
Fig. 6 is the module diagram of length of string calculation element in a kind of embodiment of the application.
Detailed description of the invention
By reference to the accompanying drawings the application is described in further detail below by detailed description of the invention.
Embodiment one
Please refer to Fig. 1 and Fig. 2, in the present embodiment, the wire drawing machine main equipment of wire drawing machine system comprises unwrapping wire unit 10 successively, many group wire drawing units 20, and take up unit 30.
Wire drawing unit 20 comprises rotary drum 201, mould 202, tension roller 203, protective cover (accompanying drawing is not shown), motor 204, cylinder fork 205 and potentiometer 206.
Wire drawing machine system also comprises frequency converter 40,40 frequency converter respectively corresponding with often organizing wire drawing unit 20, take up unit 30 and is connected with the motor of wire drawing unit 20 or take up unit 30, for controlling the rotating speed of motor.
Wire drawing machine system also comprises PLC 50, and it is connected with frequency converter 40 by high-frequency impulse input line 501,502, given for carrying out frequency by high-frequency pulse signal to frequency converter 40.
Concrete, rotary drum 201 adopts air-cooled and water-cooled, and the cooling water of rotary drum 201 is controlled by hand-operated valve, and cooling blower provides fixing cooling air.Mould 202 adopts water-cooled and preposition powdered lubricant, and the cooling water of mould 202 adopts the mode of low in and high out, and the flow of water is regulated by the aperture of valve.The tension force of jockey pulley by air pressure adjustment size, and is equipped with position potentiometer, can transmission location analog quantity.Unwrapping wire unit 10 adopts slave state work.Take up unit 30 comprises admission machine and takeup tension frame, and take up unit 30 adopts trunk take-up, turns footpath constant.When carrying out drawing, wire base is by 1# mould to 1# rotary drum, and through 1# jockey pulley, through 2# mould to 2# rotary drum, order wears silk, until take up unit like this.Further, the board of wire drawing machine system can also arrange circuit wire detecting device.In addition, last group wire drawing unit does not arrange jockey pulley.
In the present embodiment, also comprising for drawing the cylinder fork 205 with speed stabilizing from unit in many group wire drawing units.Cylinder fork 205 is also provided with the potentiometer 206 connected with each frequency converter corresponding from unit.Potentiometer 206 is for producing the feedback signal of voltage signal as frequency converter according to the position of cylinder fork 205.Frequency converter also for being compensated frequency according to this feedback signal, and in the running frequency that sends of the PLC 50 that is added to, as the actual motion frequency of frequency converter.
PLC 50 is also connected with frequency converter 40 by bus 503, for carrying out communication with frequency converter 40.PLC 50 can adopt RS485 interface with the EBI of frequency converter 40.
In the wire drawing machine system that the present embodiment provides, PLC is connected with each frequency converter by high-frequency impulse input line, given for carrying out frequency by high-frequency pulse signal to frequency converter.Thus avoid needing for each frequency converter arranges an analog quantity channel, reduce system line, reduce interference, simplify electrical structure
Preferably, PLC also for obtaining the travel line speed of host groups in many group wire drawing units, being carried out integration to this linear velocity and being obtained length of string.Do not need to use extra auxiliary equipment to calculate length of string, and result of calculation is accurate.Host groups refers to last wire drawing unit, the wire drawing unit namely before take up unit, and all the other wire drawing units are from unit.
Further, high-frequency impulse input line has two groups, one group 501 for connecting the frequency converter of PLC 50 and wire drawing unit 20, another group 502 is for connecting the frequency converter of PLC 50 and take up unit 30.Often organize high-frequency impulse input line and all comprise positive and negative two lines.In system cloud gray model, because wire drawing unit 20 exists Maximum speed limit, so be necessary that the independent high-frequency impulse input line of use one group is connected with the frequency converter of take up unit 30.
Preferably, wire drawing machine system also comprises the human-computer interaction device 60 be connected with PLC 50, for showing the parameter of information and acquisition user input.Wherein, the parameter of user's input includes but not limited to mechanical parameter.For the wire drawing machine of the rotary drum of varying number, identical PLC control program and man-machine interface (HMI can be adopted, HumanMachineInterface) program, by operating personnel, different mechanical parameters is set according to the actual requirements by human-computer interaction device 60, and do not need to change system program, thus reduce managerial burden.Such as, make wire drawing machine system can share a set of PLC, HMI program and electric installation drawing, technical drawing, make the manageable program of equipment vendor, electric installation drawing, technical drawing and description etc.
Certainly, for the ease of debugging and threading, wire drawing machine system can carry out the forward and reverse crawl of every platform rotary drum and interlock at different levels; There is emergency shutdown, brake function simultaneously, ensure that in emergency circumstances wire is continuous, reduce threading trouble.
In the wire drawing machine system that the present embodiment provides, PLC is connected with each frequency converter by high-frequency impulse input line, given for carrying out frequency by high-frequency pulse signal to frequency converter.Thus avoid needing for each frequency converter arranges an analog quantity channel, reduce system line, reduce interference, simplify electrical structure.Further, owing to only have employed a speed preset source, can make the speed sync of all frequency converters, gently, constant speed hourly velocity is stablized for acceleration, deceleration curve.
Embodiment two
Based on the wire drawing machine system that embodiment one provides, the present embodiment additionally provides a kind of wire drawing machine method for controlling frequency conversion.Please refer to Fig. 3, the method comprises step below:
Step 1.1: the mechanical parameter obtaining each wire drawing unit.Mechanical parameter comprises the diameter of mould in wire drawing unit, the diameter of rotary drum, the magnetic pole logarithm of motor and mechanical reduction ratio.Certainly, in other embodiments, mechanical parameter can also comprise the parameter that other needs use.
Step 1.2: according to quantity and the enable situation of wire drawing unit, determines host groups and from unit.Such as, according to different unit quantity and enable situation thereof, the wire drawing unit defining last of take up unit enable is main frame, determines its address and mechanical parameter thereof.
Step 1.3: according to the mechanical parameter of each wire drawing unit, obtains the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication.
Step 1.4: the frequency calculating high-frequency pulse signal according to the wire drawing linear velocity of setting and the mechanical parameter of host groups, the given source as each unit frequency-conversion device running frequency).
Step 1.5: described high-frequency pulse signal is sent to the frequency calculated the frequency converter that each wire drawing unit is corresponding.
Step 1.6: the frequency converter that each wire drawing unit is corresponding exports its running frequency according to described high-frequency pulse signal and corresponding frequency proportions.
Please refer to Fig. 4, the present embodiment is also corresponding provides a kind of wire drawing machine frequency-converting control device, comprises first information acquisition module A01, host definition modules A 02, frequency proportions computing module A03, frequency computation part modules A 04 and the given modules A 05 of frequency.
First information acquisition module A01 is for obtaining the mechanical parameter of each wire drawing unit.Mechanical parameter comprises the diameter of mould in wire drawing unit, the diameter of rotary drum, the magnetic pole logarithm of motor and mechanical reduction ratio.Certainly, in other embodiments, mechanical parameter can also comprise the parameter that other needs use.
Host definition modules A 02 for according to the quantity of wire drawing unit and enable situation, determines host groups and from unit.Such as, host definition modules A 02 is according to different unit quantity and enable situation thereof, and the wire drawing unit defining last of take up unit enable is main frame, determines its address and mechanical parameter thereof.
Frequency proportions computing module A03 is used for the mechanical parameter according to each wire drawing unit, obtains the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication.
Frequency computation part modules A 04 is for calculating the frequency of high-frequency pulse signal according to the wire drawing linear velocity of setting and the mechanical parameter of host groups.
The given modules A of frequency 05 is for sending to the frequency calculated the frequency converter that each wire drawing unit is corresponding by this high-frequency pulse signal.
In the present embodiment, wire drawing machine frequency-converting control device can be realized by the PLC in embodiment one.
In the method for controlling frequency conversion of the wire drawing machine system that the present embodiment provides and device, first according to the mechanical parameter of each wire drawing unit, obtain the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication; The frequency of high-frequency pulse signal is calculated again according to the wire drawing linear velocity of setting and the mechanical parameter of host groups; Afterwards high-frequency pulse signal is sent to the frequency calculated the frequency converter that each wire drawing unit is corresponding; The frequency converter that each wire drawing unit is corresponding exports its running frequency according to high-frequency pulse signal and corresponding frequency proportions.Thus make can be corresponding with host groups from the speed of frequency converter corresponding to unit the speed sync of frequency converter.
Embodiment three
Based on the wire drawing machine system that embodiment one provides, the present embodiment additionally provides a kind of length of string computational methods, please refer to Fig. 5, and the method comprises step below:
Step 2.1: the travel line speed obtaining host groups in many group wire drawing units.
Step 2.2: integration is carried out to this linear velocity and obtains length of string, namely ask the integration of velocity versus time.
Please refer to Fig. 6, the present embodiment is also corresponding provides a kind of length of string calculation element, comprises data obtaining module B01 and integration module B02.
Data obtaining module B01 is for obtaining the travel line speed of host groups in many group wire drawing units.
Integration module B02 is used for carrying out integration to this linear velocity and obtains length of string, namely asks the integration of velocity versus time.
In the present embodiment, length of string computational methods and device can be realized by the PLC in embodiment one.
In the length of string computational methods that the present embodiment provides and device, do not need to use extra auxiliary equipment (such as calculating wheel) to calculate length of string, and result of calculation is accurate.
In the present embodiment, the integration that make use of velocity versus time is the principle of distance, and wire drawing machine system linear velocity equals the linear velocity of last rotary drum (host groups), by carrying out integration to the travel line speed of host groups, obtain length of string, abandon the mode that traditional use auxiliary equipment (such as calculating wheel) calculates length of string.
When embody rule, please refer to Fig. 2, Fig. 2 illustrates a kind of 8 mould 9 motor system for drawing, and all motors are respectively by the Frequency Converter Control of 9 corresponding power, and all motors are all with mechanical brake device.
The free unwrapping wire of unwrapping wire unit 10, does not need motor to drive.First order rotary drum mainly plays and is pulled by certain speed by the metal wire on unwrapping wire unit 10, sends wire drawing machine to, mainly plays the effect of traction and speed stabilizing.1# ~ 7# is equipped with cylinder fork, when line is more loose time, due to the active force of cylinder, cylinder fork is pushed into origin position; When line draw tighter time, cylinder fork moves some positions to.Position potentiometer is housed below cylinder fork, and potentiometer produces different voltage according to the position of cylinder fork, and voltage signal is as the PID feedback signal of frequency converter.Frequency converter obtains a compensating frequency by PID arithmetic, in the running frequency that the PLC that is finally added to sends, as the actual motion frequency of frequency converter.Frequency converter dynamically revises running frequency, and swing arm is stablized.The effect of mould is that wire stretching is attenuated, and it is consistent with mould internal diameter that wire rod goes out linear diameter.Last rotary drum is as host groups, this frequency converter does not have PID to regulate, speed is given by PLC, other frequency converters are all the linear velocities according to host groups, according to the ratio value of the mechanical parameter amendment high-frequency impulse input from machine level, corresponding wire rod linear velocity and host groups linear velocity is made to keep synchronous.By multistage stretching, final wire rod becomes default size.The frequency of every grade of frequency converter operation is relevant with higher level's running frequency and mould internal diameter size.Operating personnel arrange on the touch-screen of human-computer interaction device host groups the speed of service and after the mechanical parameter of unit, calculated by PLC, finally obtain the running frequency of every grade of frequency converter, PLC issues frequency converter by high-frequency pulse signal frequency, as the principal velocity of frequency converter.
Straight wire drawing machine system can support N+1 platform, i.e. N wire drawing unit and 1 take up unit.Host groups refers to last wire drawing unit, the wire drawing unit namely before take up unit.Such as wire drawing machine is 8+1 pattern, and so host groups is 8# wire drawing unit; Such as wire drawing machine is 6+1 pattern again, and so host groups is 6# wire drawing unit; By that analogy.In Fig. 2,8# wire drawing unit is host groups.
In the embodiment of the present application, adopt PLC to export high-frequency pulse signal given as the master of every platform frequency converter, its synchronism is high, and antijamming capability is strong.
Be in the embodiment of the present application below, PLC controls the principle explanation of frequency converter running frequency.
The essence that wire drawing controls is that the same time period is equal through the wire rod volume of per pass mould, therefore can obtain formula below: metal volume V=cross section metal amasss S* metal length L, i.e. V=S*L.
There is again S=π * r*r, L=v*t.Wherein, r is metallic radius, and v is linear velocity, and t is the time.
So volume V=(π * r*r) * (v*t).
Because the volume (V1 and V2) before and after metal stretching is constant, i.e. V1=V2, obtains (π * r1*r1) * (v1*t)=(π * r2*r2) * (v2*t), i.e. r1*r1*v1=r2*r2*v2, namely
V1/v2=(r2*r2)/(r1*r1)---formula 1
So the size of adjacent two moulds determines the ratio of linear velocity between two rotary drums.
Again because, the outer perimeter of the linear velocity=rotary drum rotating speed * rotary drum of each rotary drum, namely
V=n*L---formula 2
Wherein, v=60*f*i/p, f are the running frequency of frequency converter, and p is the magnetic pole logarithm of motor, and i is mechanical reduction ratio.
L=2 π * D, D is roller diameter.
Institute 2 is with the formula: v=n*L=60*f*i/p*2 π * D---formula 3
In conjunction with formula 1 and formula 3, the running frequency ratio of known two frequency converters is determined jointly by mechanical parameters such as r, i, p, D.
Because wire drawing machine system linear velocity equals the linear velocity of last rotary drum, so last wire drawing unit is defined as host groups, the linear velocity that also namely host groups is run equals the travel line speed of default.Operating personnel set the linear velocity of host groups by human-computer interaction device, are so just aware of the running frequency of host groups frequency converter.Because every platform is calculated by mechanical parameter from the running frequency ratio of unit frequency-conversion device and host groups, just can realize the control from unit frequency-conversion device so PLC has revised frequency proportions by communication.
To sum up, PLC calculates draw ratio according to the mechanical parameter of drawing speed, wire drawing unit, then sends to each frequency converter by a road high-frequency pulse signal main given; Frequency converter recycles the PID carried and carries out frequently folded, obtains final actual motion frequency.
The wire drawing machine system Zhi Yong mono-road PLC high-frequency impulse that the embodiment of the present application provides exports the given source of frequency as all wire drawing frequency converters, This greatly reduces the circuit of system, reduce the possibility be disturbed, and because share a given source, so improve synchronism and the stability of a system of speed.
In addition, wire drawing machine system adopts linear velocity integration to calculate length of string, can save and calculate the long auxiliary equipment of the meter such as wheel, and reduce circuit further.
And, handing over people can to the open developer's picture of equipment vendor in the HMI program of interactive device, straight drawing machine cascade number, speech selection and out of Memory is selected by equipment vendor, equipment different like this can share a set of PLC, HMI program and electric installation drawing, technical drawing, and simplified apparatus business is to the management of program and electric installation drawing, technical drawing.
It will be appreciated by those skilled in the art that, in above-mentioned embodiment, all or part of step of various method can control related hardware by program and completes, this program can be stored in a computer-readable recording medium, and storage medium can comprise: read-only storage, random access memory, disk or CD etc.
Above content is the further description done the application in conjunction with concrete embodiment, can not assert that the concrete enforcement of the application is confined to these explanations.For the application person of an ordinary skill in the technical field, under the prerequisite not departing from the present application design, some simple deduction or replace can also be made.
Claims (10)
1. a wire drawing machine system, comprises wire drawing machine main equipment, and described wire drawing machine main equipment comprises unwrapping wire unit successively, and many group wire drawing units, and take up unit, is characterized in that, also comprise:
The frequency converter respectively corresponding with often organizing wire drawing unit, take up unit, described frequency converter is connected with the motor of wire drawing unit or take up unit, for controlling the rotating speed of motor;
PLC, it is connected with described frequency converter by high-frequency impulse input line, given for carrying out frequency by high-frequency pulse signal to frequency converter.
2. wire drawing machine system as claimed in claim 1, it is characterized in that, described PLC is also connected with described frequency converter by bus, for carrying out communication with frequency converter.
3. wire drawing machine system as claimed in claim 2, is characterized in that, described PLC also for obtaining the travel line speed of host groups in many group wire drawing units, being carried out integration to described linear velocity and being obtained length of string.
4. wire drawing machine system as claimed in claim 1, is characterized in that, also comprises for drawing the cylinder fork with speed stabilizing in many group wire drawing units from unit; Described cylinder fork is also provided with the potentiometer connected with each frequency converter corresponding from unit; Described potentiometer is used for producing the feedback signal of voltage signal as frequency converter according to the position of cylinder fork; Described frequency converter also for being compensated frequency according to described feedback signal, and is added in the running frequency of PLC transmission, as the actual motion frequency of frequency converter.
5. wire drawing machine system as claimed in claim 1, it is characterized in that, described high-frequency impulse input line has two groups, one group for connecting the frequency converter of PLC and each wire drawing unit, another group is for connecting the frequency converter of PLC and take up unit.
6. the wire drawing machine system as described in any one of claim 1-5, is characterized in that, also comprises the human-computer interaction device be connected with PLC, for showing the parameter of information and acquisition user input.
7., based on a wire drawing machine method for controlling frequency conversion for the wire drawing machine system described in any one of claim 1-6, it is characterized in that, comprising:
Obtain the mechanical parameter of each wire drawing unit; Described mechanical parameter comprises the diameter of mould in wire drawing unit, the diameter of rotary drum, the magnetic pole logarithm of motor and mechanical reduction ratio;
According to quantity and the enable situation of wire drawing unit, determine host groups and from unit;
According to the mechanical parameter of each wire drawing unit, obtain the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication;
The frequency of high-frequency pulse signal is calculated according to the wire drawing linear velocity of setting and the mechanical parameter of host groups;
Described high-frequency pulse signal is sent to the frequency calculated the frequency converter that each wire drawing unit is corresponding;
The frequency converter that each wire drawing unit is corresponding exports its running frequency according to described high-frequency pulse signal and corresponding frequency proportions.
8., based on a wire drawing machine frequency-converting control device for the wire drawing machine system described in any one of claim 1-6, it is characterized in that, comprising:
First information acquisition module, for obtaining the mechanical parameter of each wire drawing unit; Described mechanical parameter comprises the diameter of mould in wire drawing unit, the diameter of rotary drum, the magnetic pole logarithm of motor and mechanical reduction ratio;
Host definition module, for according to the quantity of wire drawing unit and enable situation, determines host groups and from unit;
Frequency proportions computing module, for the mechanical parameter according to each wire drawing unit, obtains the frequency proportions of frequency converter corresponding to each wire drawing unit, and corresponding frequency proportions is sent to the frequency converter of each wire drawing unit by communication;
Frequency computation part module, for calculating the frequency of high-frequency pulse signal according to the wire drawing linear velocity of setting and the mechanical parameter of host groups;
The given module of frequency, for sending to the frequency calculated the frequency converter that each wire drawing unit is corresponding by described high-frequency pulse signal.
9., based on length of string computational methods for the wire drawing machine system described in any one of claim 1-6, it is characterized in that, comprising:
Obtain the travel line speed of host groups in many group wire drawing units;
Integration is carried out to described linear velocity and obtains length of string.
10., based on a length of string calculation element for the wire drawing machine system described in any one of claim 1-6, it is characterized in that, comprising:
Data obtaining module, for obtaining the travel line speed of host groups in many group wire drawing units;
Integration module, obtains length of string for carrying out integration to described linear velocity.
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| CN108311553A (en) * | 2018-01-12 | 2018-07-24 | 贵州钢绳股份有限公司 | A kind of wire drawing machine steel wire note meter Fang Fa and its device |
| CN108762114B (en) * | 2018-02-27 | 2021-01-26 | 深圳市海浦蒙特科技有限公司 | Wire drawing machine control method, wire drawing machine control device, and storage medium |
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| CN108762114A (en) * | 2018-02-27 | 2018-11-06 | 深圳市海浦蒙特科技有限公司 | Wire drawing machine control method, device, wire drawing machine control device and storage medium |
| CN108681237B (en) * | 2018-02-27 | 2021-08-10 | 深圳市海浦蒙特科技有限公司 | Control method and device for winding frequency converter of wire drawing machine, computer equipment and medium |
| CN109226296A (en) * | 2018-10-26 | 2019-01-18 | 苏州安驰控制系统有限公司 | A kind of method, apparatus and storage medium of wire-drawing machine winding control |
| CN110656417A (en) * | 2019-08-19 | 2020-01-07 | 宁波凯腾自动化科技有限公司 | Drafting control system |
| CN110716521A (en) * | 2019-10-30 | 2020-01-21 | 苏州安驰控制系统有限公司 | Control method of stranding machine and stranding control system |
| 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 |
| CN112044964A (en) * | 2020-08-13 | 2020-12-08 | 东莞市冠标电工机械有限公司 | Resistance matching die of high-speed fine copper wire drawing machine and application thereof |
| CN112987809A (en) * | 2021-02-05 | 2021-06-18 | 麒盛科技股份有限公司 | Variable-frequency speed regulation control method and system capable of regulating speed conveniently |
| CN113245385A (en) * | 2021-04-22 | 2021-08-13 | 东莞科力线材技术有限公司 | Control system and method for wire drawing machine |
| CN113245385B (en) * | 2021-04-22 | 2023-03-17 | 东莞科力线材技术有限公司 | Control system and method for wire drawing machine |
| 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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