The Kinco servo application on gold-rimmed drawbench
- source:TAMIKO CNC Machining
Put the control of constant linear velocity of filar servo; 2.
Adjust of servo follow control; 3.
The constant linear velocity of winding servo (constant tension) control, maintain below the circumstance that asks winding servo increases ceaselessly in radius namely with adjust the linear velocity of servo is equal; 4.
Place the positional control of filar servo; Because the system asks to have capacity of communication of CANopen bus line, after considering the CANopen controller plan with domestic each existing manufacturer integratedly, we chose Twido series PLC of Shi Naide and CANopen module. 5, control program introduces 1. "The servo that put silk " the control that constant linear velocity dominates this servo electric machinery is used take the control pattern that imposes decelerate (the speed of Kinco servo 3 mode) will finish. To this system, requirement main shaft puts filar report function the interference rejection on adequate the biggest level, move below the rate that stabilizes in as far as possible, and ask as a result of what help filar technology, must ensure rising to mix when stopping, have add decelerate function smoothly. Driver works in speed 3 mode fall, the rate with completely OK and contented extremely stable requirement controls a demand. 2. "Adjust servo " follow the control that dominates this servo electric machinery is used follow control mode (- 4 mode) will finish. Extremely tall to requirement of control of this electric machinery, its speed need follows completely the electric machinery that put silk will move, if appeared bigger error, gold-rimmed can be pulled, and this is right gold-rimmed pull making is absolutely unallowed! . Kinco servo driver is in " - 4 " when mode come off work is made, the rate that has very accurate, delicacy follows quality, not only OK and contented follow strictly requirement, at the same time OK and dynamic revise follow gear realizes linear velocity be in than coming ± 5% between fluctuant (ensure tension) . 3. The constant linear velocity of winding servo (constant tension) the Chongzhongzhi that the control that dominates this electric machinery is whole system is heavy, want to wind the string that come out flowing, do not collapse edge, so the linear velocity that is about to beg winding electric machinery and adjust the linear velocity of electric machinery is equal. And should realize control of constant linear velocity, must detect through loop of a feedback the actual linear velocity that circles line annulus, the system that the client goes uses tensional lever to finish, what tensional lever feedback goes back is a tensional signal, and tensional lever still has therein transfer link, if the linear velocity of winding electric machinery and adjust the linear velocity of electric machinery differs bigger when, pass compensation of rigid structure go ahead of the rest, next plus electric compensation, this is equivalent to two compensation link, reduced the machine rate that breaks a string. Such system is in use in a lot of drawbench at present. And current this drawbench is to use the silk that draw gold technically, gold-rimmed surface demand is very high clean degree, need reduces intermediate excessive segment as far as possible, so the client cancelled tensional lever, and used directly measure fast annulus will regard feedback as loop. Increased control so. Above all, we are collected through signal measure fast annulus linear velocity, be passed next and adjust annulus the PID computation that we pass after linear velocity undertakes comparative, complement computation finally as a result go on winding annulus speed currently. Except through real time PID computation complements outside the rotate speed of winding annulus, when controlling winding annulus rotate speed, the number of plies that we still wind a string through computation as calculative foundation, ensured winding annulus won't increase because of what increase of the diameter ceaselessly and cause an error thereby. 4. The control that places the position of filar servo to control the servo that place silk basically is to assure to circle make assuring line arrange online axis equably to go up, the effect discharging silk that next graphs are a requirement pursues: Difficulty of pilot of this electric machinery consists inverting share, to smooth glide is in to spend in inverting, and do not appear whorl, electric machinery is in inverting when should ensure avoid cumulative error, as a result of the mode of absolutely fixed position of Kinco servo, use Firmware interior to calculate, ensured absolutely fixed position is finished inside final circuit. 6, the last word is current this system already put into production, and ran time of about 2 months continuously, the result is favorable. Pull make 3 (finished product diameter) gold-rimmed when main shaft speed can achieve 400rpm, this raised nearly 5 than using the machine of loop of tensional lever feedback to pull the gold-rimmed diameter that make, rate became rapid close 70rpm, and pull make the gold-rimmed surface level that give smooth, accord with client demand completely. CNC Milling CNC Machining