Be pulled by the metal currently the delegate of general praise highly wears filar industry the most advanced equipment that produces a technology, should be to enter type drawbench continuously, the straight drawbench that take form can reduce the internal stress of tinsel, remove screwy moment of force. In process of the following deep treatment plasticity compares stability, machinability can be good, in the meantime, manufacturing treatment makes speed is OK and aleatoric set. Manufacturing process interrupts line odds to reduce, improve manufacturing efficiency. So it is representing the high end of drawbench technology. Shandong Jinan, our mechanical equipment makes a client, "Company of equipment of the machinery that collect constant " . This manufacturer is with entering type drawbench continuously production makes the manufacturer that is main product one. We use pulling force of our AC60-3T series this for this manufacturer special control transducer designed system of an electric control. Before offerring this to cover technical program to the other side in us, the straight drawbench taking form that the company that collect constant produces from others of entrance of city of Henan crane wall all the time is electric control ark. This also made clear at the same time, before we and the product technology that are similar to us were not landed, the electric equipment of the straight drawbench that take form is being controlled a technology the technology all the time by the electric company of a few high end, cannot have breakthrough and development. After our control technology comes on stage, immediate benefit reachs drawbench to make manufacturer. Make they had themselves the straight drawbench taking form of real significance is electric control technology. The drawbench previously controls a technology, be a delegate with taking form continuously, on control means, all the time continue to use: Inside unit time, metallic second discharge controls a principle equally, use this principle computation to give a roughly exact rate to match control. Next, combine signal of position of tensional move about arm, on the foundation of above speed, combinative PID control undertakes minim adjustment. Say so, the straight drawbench taking form previously cannot leave to touch screen all the time or text monitor. The reason is the diameter that PLC needs to know a pattern, use at computational traversal speed. And, once changed the aperture of the mould, must change parameter set value afresh. And become should carry out jump an instruction when, want to set mould aperture and mechanical drive specific value afresh again. We use AC60-3T tension to control special transducer, signal of position of direct sampling career, chase class to dog automatically downstage machine stage the control program of traversal speed, can undertake speed matchs automatically, drive of brain machine instrument is compared. Complete the control system that oneself get used to service requirement. OK and very good settlement enters type drawbench continuously currently the link of a lot of difficult problem that electric control technology exists. It is a mature plan that accepts praise highly fully. Our plan needs periphery hardware configuration roughly: (it is with 8 aircrew exemple) FX2N of PLC 1 stage, first selection, quantity of 64MRD/A number imitate changes module, 1 passageway can. (also can replace with potentiometer) monitor of feeling screen text (also need not use, do not affect control precision) start, stop pushbutton foot to step a dot to use switch, with every machine stage 4 amount is calculated. Urgent stop pushbutton a certain number of. Tensional position sensor, machine stage gross - the amount that １ ＝ needs. Electromagnetism a powerful person, and tensional cylinder, the basis needs to purchase. Enter type drawbench continuously, on electric control mode, use PLC to sum feeling commonly screen, add transducer to control mode. The typical straight system taking form of use transducer is controlled as follows, responsible set of operation face plate and PLC and monitoring the parameter of each link, pass each set terminal of transducer, undertake condition is shared pulling filar reel to control transducer individually directly. The running frequency of electric machinery of reel receiving a line is passed advocate hold accuse PLC output to give. Receive the running frequency of line electric machinery, decided the traversal speed of electric machinery of on one stage directly, belong to the character of the product with bail to make sure tension is basic and constant, of electric machinery of the link that pull silk advocate the frequency that accuses speed to issue one stage electric machinery integratedly through PLC is given, alone advocate frequency gave signal not to satisfy a product to produce a demand, cause line trouble easily, in because be in,pulling silk to individually into type continuously, the efficiency that pulls silk is taller, tension of the silk thread between each reel is very abhorrent, cause precision of radius of the silk thread between each reel that pull silk to create a line not high even, to achieve manufacturing demand, pass feeling signal to assist signal feedback for frequency set with tension of this stage electric machinery commonly, what through adjusting roller outputs is angle signal, angle signal turns straight formula displacement into signal through cam, displacement sensor detects the voltage signal that linear displacement signal outputs 0 ～ 10 V, this signal feedback as in-house PID signal. When main control signal controls transducer, must consider machine inertial, generate output of speed imitate signal by certain slope, generate signal of transducer main control through generator of one frequency brae namely. What the slope of generator can be aimed at different machinery is characteristic and set. Auxiliary signal by inside output of buy PID link, it decided the trends of current drawbench is characteristic, give in whole signal in, occupy when auxiliary signal place when proportion is larger, rotate speed will appear big oscillation and more difficult stability, occupy when auxiliary signal when scale is lesser, its control follows rate is slower. Because this beard is in advocate accuse PLC or transducer interior to undertake bounds to assisting frequency, concern through simple scale, set advocate the scale concern that gives signal and drawbench itself closed circuit to give signal can come true, to major drawbench, make its PID frequency controls extent to be restricted in 10% the left and right sides. Each reel control drawbench electric machinery frequency advocate signal gives need to undertake amend and be compensatinged, because drawbench works,this is of characteristic decision. Nextpage basis the principle with equal discharge of tinsel bulk second, set mould of on one class to give line radius to be R1, linear velocity is S, mechanical drive is compared for W1. The radius after passing drawing of current level mould is R2, speed is S2, mechanical drive is compared for W2, change type of speed ratio full you: Formula of above of course of R22*S2/W2 of π R12*S1/W1= π is calculated directly those who come out is speed of input of the make a present of before what pursue level machine stage currently is basic, normally to assure the efficiency of machine stage, manufacturer has limitted transmission proportion roughly when the design makes drawbench, actual and every the rate that the machine runs can keep basically constant. (± 3HZ) . Of each link cooperate to basically be as follows: Design career gives output signal to need watchful issue: When PLC D/A module outputs imitate speed signal to give, what must make sure slope is generated is flowing, inflection point place wants fruity. To the acceleration of the oldest rate from the minorrest rate time should assure 15S above, if acceleration S2 time is less than 15S,confirm actually, so pitching moment receives line electric machinery to will appear speed dogs insufficient problem, if be,use tension to receive a line to be able to avoid above case to happen. Of slope generate should depend on PLC to finish. If be potentiometer,give speed signal, must be to use two potentiometer, one is given as traversal speed, one moves speed to give as the dot. And choose potentiometer many rounds as far as possible. The filter wave time that sets calm imitate to measure port to input at the same time is 30S. Concern through logic, undertake the output of two potentiometer having parting optionally switch is outputted. Notice the dot is moved at the same time given the place that imitate estimates speed signal to must cooperate each machine stages uses frequency speed set. Once rectify,had decided, need solidify. For example, the signal of frequency of 3HZ of translate into of output imitate signal that the dot uses speed potentiometer, criterion the digital set point of all machine stages moves frequency to want a setting to be 3HZ. Instruction of urgent break alarm and restoration signal instruction are OK and shunt-wound so machine station signal, unified hand in output port processing by. All inverting REV instruction is OK also and shunt-wound rise centralized control output. The output check the number of so OK and managing PLC. Every transducer needs " 5 " road signal is given, 1, moving signal. 2, the dot is moved turning signal. 3, the dot is moved invert signal. 4, base block signal. 5, restoration signal. Speed signal needs 1 VS to input signal, feedback signal needs 1 VF to input signal. Its job principle is: The rate of exercise decides in face plate set according to jockey, the imitate signal of this speed enters PLC, this imitate signal is outputted according to certain slope after PLC considers to increase the time that reduces rate. The end that such doing basically is to satisfy a dot to move, the need that wears a few exercise such as silk. The imitate voltage signal that PLC outputs receives the VS2 of all transducer to input end at the same time, serve as frequency advocate give signal. The signal of sensor of position of each move about arm receives corresponding modular line transducer to regard PID pilot as feedback signal. According to the position of inter of move about arm, set the set-point of a PID. The PID that this system is the make a present of before very typical belt controls a system, one class joins one rank, PID serves as fine tuning quantity and advocate give losing add decrease overlay to beg the output that will control transducer if really. The machine station that will give finished product clue commonly (finally) as constant rate moves, stage of the others machine does tensional control to move. Such advantage is to go to the lavatory to determine machine stage through linear velocity traversal speed, stage of high rate machine is constant at the same time rate moves can assure stability. The design of behavioral logic asks: First machine stage and stage of the last machine are " 3 " the foot steps signal input, its allocate a relation to be: The dot is moved turning, the dot is moved invert, hind online dot is moved, (the last before be, online dot is moved) intermediate machine stage is " 4 " the foot steps signal input, its allocate a relation to be: The dot is moved turning, the dot is moved invert, hind online dot is moved, before online dot is moved. The tension when wearing a line to make sure the dot is moved is controlled, its logic relation should combine as follows: Transducer of 1# machine stage: The dot moves turning: Close the JOG terminal of 1# transducer. The dot moves invert: Close at the same time the JOG of 1# transducer and F/R terminal. After the dot moves online: Close the JOG terminal of last transducer, close at the same time the FWD terminal of stage of machine of serial number of the reach that pursue course. (for example: Last chance stage is 8# machine stage, need assorted action to be: 8# machine stage closes stage of machine of JOG, 7# , 6# , 5# , 4# , 3# , 2# , 1# closes RUN) transducer of 2# machine stage: The dot moves turning: Close the JOG terminal of 2# transducer. The dot moves invert: Close at the same time the JOG of 2# transducer and REV terminal. After the dot moves online: Close the JOG terminal of last transducer, close at the same time the FWD terminal of stage of machine of serial number of the reach that pursue course. (for example: Last chance stage is 8# machine stage, need assorted action to be: 8# machine stage closes stage of machine of JOG, 7# , 6# , 5# , 4# , 3# , 2# closes FWD) before the dot moves online: Close the JOG terminal of 1# transducer, close at the same time the transducer of FWDnextpage3# machine stage of 2# transducer: The dot moves turning: Close the JOG terminal of 3# transducer. The dot moves invert: Close at the same time the JOG of 3# transducer and REV terminal. After the dot moves online: Close the JOG terminal of last transducer, close at the same time the FWD terminal of stage of machine of serial number of the reach that pursue course. (for example: Last chance stage is 8# machine stage, need assorted action to be: 8# machine stage closes stage of machine of JOG, 7# , 6# , 5# , 4# , 3# closes RUN) before the dot moves online: Close the JOG terminal of 1# transducer, close at the same time the FWD of transducer of 2# , 3# . Analogize of in proper order, in every case is hind the dot is moved online, decide speed signal by last chance stage, the dot is moved before online decide traversal speed by stage of the first machine, stage of machine of the others correlation needs to decide traversal speed according to tensional feedback signal. Implement normal moving directive. If the speed of PLC generates what slope is more than transducer to add decelerate to spend time, can judge 0 speed to embrace brake turn off a machine by oneself, if the speed of PLC generates what slope is less than or be equal to transducer to add decelerate to spend time, be necessary completely 0 speed signal comes to sampling control brake, can make sure brake does not have concussion so, open stop flowing and ceaseless line. Rise to make sure instant of the tension that start is built quickly, the default that needs input of the make a present of before accurate setting is initiative is numeric. The numerical value of specific judgement H-32 is as follows: First by run machine station in low rate position, adjust each parameter roughly right now, after making sure low rate pulling force is steady, (it is the numeric and unified setting of H-32 first 100) real time numerates dynamicly the proper motion of the H-32 of every transducer makes the numerical value after deciding, record come down. (after must making sure pulling force is roughly steady, do not exceed tone this work is done below queasy premise) subtract severally in the data that stops plane position to record above " 5 " the result value reintroduce that reach goes in, pass such processing, can not depend on tension basically to coil the effect that the computation of diameter can start instantaneous tension stability to build with coming true, attention: Numerate H-32 parameter must run condition to undertake in low rate stability, write must be in stop plane position to undertake. Some accession, if the scope effect of sensor is not ideal, our set coils when the numerical value of H-42 of diameter computation limits, can calculate roughly so, sensor is the biggest the numerical value of output is subtractive " 550 " (through feedback parameter OK and intuitionistic examine) the numerical value that is H-42 namely, it is the numeric solidify of H-38 " 30 " . the numerical value of the numeric again subtractive H-38 of H-42, the result that reach, balanced a flight of stairs allocates H-39, H-40, H-41. Had better make sure the fold that pursue course concerns. Tensional annulus move about arm gives out below roughly sketch map appearance: Can observe in move two kinds swing evidence, it is to place frequency, it is amplitude, if amplitude is too big, obtain ultimate position, what can reduce H-44 and H-20 is numeric, what also can try to increase H-19 is numeric, every time the biggest add an unit for 0. 02. If swing,evidence improves, can add an unit again, cannot add at will a lot of. If place frequency too big, but amplitude does not bump be restricted, what can reduce H-22 is numeric, what also can try to reduce H-19 is numeric. Look so that see amplitude is big, also can be controlled through pulling a flight of stairs of scale of big gain coefficient, h-33 is " 1 " H-34 is " 3 " H-35 is " 6 " or H-33 is " 1 " H-34 is " 2 " H-35 is " 4 " , because decided H-33 only,be " 1 " the ability after numerical value can judge H-34, H-35, H-36 certainly, numerical value is appropriate. So H-33 had better is " 1 " . Attention: Of electromotor extremely logarithm is bigger, decelerate comparing is bigger, gain is worth (H-50 and H-19 random are taken one) corresponding need is bigger. Cannot same setting unites parameter, the effect is betterer perhaps. (physical length error is consistent, amplitude position is consistent, but adjust speed span does not agree certainly) . Anyhow must make clear those who had compensated large generation to Hunan is gain swing or gain has compensated what miscarriage is born to swing, physics observes lever of machine stage tension, should swing greatly generation hind must adjust periodic, namely bigger it is OK to swing stability comes down to be optimal control position. Observation transducer, the frequency change that can see correspondence is ± 0.
Wave motion of 1HZ left and right sides is optimal. Nextpage control principle is: The feedback cost that counts tensional fork as far as possible will restrain amplitude, (H-50 and FH-19 will cooperate to make inside H-22 time limits the error changes to be controlled as far as possible inside H-38 limits) make sure H-32 does not make big change, once stable condition is destroyed, criterion H-32 can adjust quickly again compensation. The adjustment of H-32 changes quantity and current traversal speed concern couplet, VS2 of speed of make a present of is jumped over before tall, the adjustment that the change of H-32 causes is measured bigger, jump over however conversely small, speed accumulates formation error inside taller unit time bigger, speed accumulates formation error inside smaller unit time smaller, the rate that wants whole course of give attention to two or morethings so will rectify calm. Still want to restrain limits of rate change error to be inside H-38- -H-39 limits at all. The actual physics amortize that tensional fork gives out below absorbs length: Tension store can length gauge of amount to of amplitude amortize position calculates signal: Condition: Photograph adjacent the effective distance length of two reel 880 millimeter, tensional lever places deputy effective journey to be apart from 180 millimeter (determine point-blank) the 350 millimeter that tensional annulus is apart from point-blank in two reel are in the limit store can absorb total length to be apart from for 394.
69 millimeter + 559.
73 millimeter =954.
42 millimeter amortize absorbs length for 954.
42 millimeter - 880 millimeter =74.
42 millimeter control the journey to be apart from each to occupy among them absorb length 74 actual.
2=37 of 42 millimeter ÷ .
The diameter of reel of 21 millimeter drawbench 400 millimeter × 3.
14=1256 millimeter 1256 millimeter of 35 millimeter ÷ =0.
027866 turn electromotor pulls the reel speed adjusting range that use to must arrive accurately in ± 0.
027866 turn between (reel speed) . 0.
027866 turn × turns electromotor of decelerate comparing × extremely frequency of logarithm ÷ 60= (HZ) . Citing decelerate compares for 1: 30 electromotor are 4 extremely (1500 turn) =2 is extremely right, criterion 0.
027866 turn 30 × of × 2 ÷ 60=0.
The output frequency of 027866HZ transducer must be controlled accurately in ± 0.
Between 027866HZ limits. Because be,calculate according to linear angle, the influence of qualitative hardness of wire sufferring iron (radian) , actual distance can is less than 37.
35 millimeter of 21 millimeter ≈ , because two reel are incline to,move at matching rate in fact, so dynamic error will want than theoretical value many small, we are computative just also prohibit the static error of condition. Above is estimation value only, real possibility has some of error. Citing transducer parameter installs convert formula to be as follows: Adjusting range of its PID of H-32=100 H-50=100=50Hz H-45=000 H-19=010 is 50Hz × H-19(0.
10)=5 Hz. (inside H-45 time limits applicable) turning among them regulated quantity + 2.
5Hz turns over modulate section to measure - 2.
5Hz if regulated quantity is restricted to be able to install adjusting range of H-50=100=50Hz H-19=020 its PID to be 50Hz × H-19(0 so not quite.
10)=10 Hz (inside limits of the flowing time that start applicable) turning among them regulated quantity + 5 Hz turns over modulate section to measure - 5 Hz above just is 50Hz in highest frequency the computational quantity when. If highest frequency is more than,50Hz can make the numerical value that decides H-50 appropriately. H-19 and H-50 are product concern. The result that mode of this kind of control reachs is fine tuning limits delicate, advocate before speed of make a present of follows character is better. But should obtain better result must H-45=000 can assure flowing start follow characteristic same also degree of linearity is good. Add the control that contains 8 aircrew electric blueprint and parameter setting: The rest periphery is controlled, every manufacturer each are not identical, without unified mode, also not give uncecessary details. (blueprint is opened with AUTOCAD please, ) the finite idea that above is me myself only, communicate reference for interior only, perhaps come in and go out actually very big, cannot machine-made it is with this accurate. Be sure to keep in mind! H-50 can be restricted, also need not restrict, if have,jump a function is complete without necessary limitation, be just the opposite to what one wished otherwise. CNC Milling