CN1702222A - Servo system for sewing machine - Google Patents
Servo system for sewing machine Download PDFInfo
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- CN1702222A CN1702222A CN 200510042848 CN200510042848A CN1702222A CN 1702222 A CN1702222 A CN 1702222A CN 200510042848 CN200510042848 CN 200510042848 CN 200510042848 A CN200510042848 A CN 200510042848A CN 1702222 A CN1702222 A CN 1702222A
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Abstract
This invention relates to a seamer follow-up system, which applies the three-phase continuous brushless current dynamo. The dynamo is connected with an electrified wire netting through the rectifier filter circuit and the driver, and connected with the seamer head, in addition to the controller through the sensor, while the seamer head connects to the controller through the sensor, and the controller export connects to the driver and the seamer head through the switch circuit and the magnetic valve, the input information of the controller is acquired by the man-machine interface.
Description
One, technical field
The present invention relates to a kind of servo-drive system, especially a kind of servo-drive system that is applied to Sewing machines.
Two, background technology
Since Sewing machines came out, people had done continuous raising and improvement to it, were doing many work aspect convenience of operating and the raising sewing efficiency.Early stage improvement is that driving mechanism is kicked by the hand pin that changes into, has formulated electric sewing machine afterwards again, for good basis has been established in the large-scale production of making industry.
The electromechanical integration Sewing machines is trend of the times, and high speed parallel sewing machine has also obtained extensive use in the Sewing machines industry now.The flat seam machine servo-drive system can be divided into 5 kinds by the kind of servomotor, i.e. friction disk type, eddy current type, mixing stepper motor, direct current generator and alternating current generator.
The starting of friction disk type electronics pilot pin motor servo system is fast, but speed and pin position control accuracy are poor, and the wearing and tearing of friction plate can influence reliability of positioning, the frequent M R of need.
Though eddy current type electronics pilot pin motor servo system positioning accuracy is higher, starting is slow, and noise and vibration are big.
Control advantage easily though the composite stepper motor servo-drive system has, starting frequency, running frequency do not reach the requirement of high speed parallel sewing machine, and positioning accuracy is still undesirable.
DC electromotor with brush servo-drive system operational efficiency height, no excitation loss, good speed adjustment features, reliable, still, brush direct current motor all adopts the mechanical system commutation, between brush and commutator, there is mechanical friction, brought shortcomings such as noise, spark, radio interference and life-span weak point thus.
AC motor servo system, that promptly still uses now is a kind of, is to adopt the electromagnetic clutch motor servo system, and speed adjustable range is wide, the speed adjusting is level and smooth, starting torque is big.But because common clutch motor is an AC induction motor, power output has only about 70% of input power; Transmit torque to Sewing machines by friction clutch, efficient has only about 70% again.So the utilization rate of electrical that really is used for Sewing machines has only about 50%.Common in addition clutch motor switch power supply promptly can turn round, and has unloaded electricity consumption, promptly when pin is not stepped on, when Sewing machines is not worked, want power consumption yet.Therefore, common electromagnetic clutch motor servo system has the shortcoming that the life-span is short, efficient is low, volume is big, noise is big.
Simultaneously, domestic existing electromagnetic clutch AC motor servo system, chip used is 8031,8051 series, and signal is 8, and transmission speed is low.Drive circuit is formed with discrete component, the electric appliance circuits complexity.
Three, summary of the invention
In order to overcome short, shortcomings such as efficient is low, volume is big, noise is big, the control chip transmission speed is low, electric appliance circuits complexity of above-mentioned prior art life-span, the present invention has adopted a kind of new servo-drive system, can effectively improve control chip transmission speed, energy savings, enhanced high efficiency, life-saving, reduces volume, reduce noise.
This system comprises current rectifying and wave filtering circuit, driver, motor, sewing machine head, sensor, man-machine interface, controller, on-off circuit and electromagnetic valve, wherein: described motor has adopted the three-phase direct-current brushless motor, and electrical network is connected motor by current rectifying and wave filtering circuit with driver; Motor connects sewing machine head; Motor connects controller by sensor, and sewing machine head connects controller by sensor; Controller output connects driver, and controller output is connected sewing machine head by on-off circuit with electromagnetic valve.The input information of controller is obtained by man-machine interface.
Electrical network arrives driver by current rectifying and wave filtering circuit Will power delivery, when controller receives the input information of setting, send command signal to driver, driver produces signal wave control motor speed, the sensor that links to each other with motor goes out the actual speed of motor, feeds back to controller again, relatively obtains error with the setting speed information of importing on the man-machine interface, according to corresponding input instruction, under the control of corresponding program, finish startup, speed governing, parking etc. again.The sensor that links to each other with head goes out the last pin position of head, following pin position signal, also feeds back to controller, by the driving of corresponding program matched orders signal controlling electromagnetic valve, finishes trimming, pipeline purging, commutation etc.
Control program of the present invention comprises man-machine interface scanning subprogram, state display subroutine, pattern subprogram, motion state module, speed adjusting module and brake module, when system starts working, in the enabling signal that the human-machine interface module input of having no way of is arranged through inspection after the initialization, if have, then enter corresponding pattern subprogram activation, and after through the judgement of motion state module, speed adjusting module speed governing, brake by brake module; If do not have, then judge after the state display subroutine also finishes through man-machine interface scanning subprogram again.Wherein:
1, operation mode module: realize the user according in selected several basic working modes of technological requirement any one, and enter corresponding pattern work.
2, speed adjusting module: comprise the commutation module of motor, speed PI controller, current PI controller.
3, brake module: software braking and reversing braking Xiang Hu Knot are closed, the fast braking of realization system.
As a preferred version of the present invention, described three-phase direct-current brushless motor has adopted three-phase full-controlled bridge conducting structure in twos.
As another preferred version of the present invention, what the pulse-width modulation circuit of described driver produced is six road PWM waveforms.
As the 3rd preferred version of the present invention, described driver has adopted special intelligent modules A SIPMps11015.
As the 4th preferred version of the present invention, described controller has adopted single-chip microcomputer 80C196MC.
Motor utilization rate of electrical of the present invention is compared power saving with the electromagnetic clutch motor and is reached 60-90% up to more than 90%, and the energy is saved in the unloaded power consumption of no common electric machine; There is not the more trouble of renewal of facing renewal; Noise is extremely low, and this motor speed is very fast, can increase work efficiency greatly, and startup is fast, braking is clever, speed governing is stable the clothes that suit, footwear industry, case and bag, the supporting use of various industrial sewing machines such as leatherware.
The latest generation single-chip microcomputer 80C196MC that this system adopts Intel Company to release is 16 real 8-digit microcontrollers.It is particularly suitable for motor and the contour speed control system of phase inverter field, performance is good, function is complete, guaranteed that every performance indications meet the requirements, possess automatic sewing, automatic stopping, reinforce seam, automatic shearing, pipeline purging automatically, automatic sewing automatically, mend pin automatically, Based Intelligent Control functions such as function demonstration, it has adopted CHMOS circuit low in energy consumption, has the advantage of power saving.
Four, description of drawings
Fig. 1 is a structure chart of the present invention
Fig. 2 is a control program flow chart of the present invention
Fig. 3 is a man-machine interface scanning subroutine flow chart of the present invention
Fig. 4 is a state display subroutine flow chart of the present invention
Fig. 5 is a speed adjusting module subroutine flow chart of the present invention
Fig. 6 is an operation module subroutine flow chart of the present invention
Fig. 7 is a system of the present invention braking subroutine flow chart
Fig. 8 is a brshless DC motor schematic diagram of the present invention
Fig. 9 is brshless DC motor full-bridge control circuit figure of the present invention
Figure 10 is a speed curve diagram of the present invention
Figure 11 is a free crack program flow diagram of the present invention
Figure 12 is that locking pin number of the present invention is reinforced the crack program flow diagram
Figure 13 is a continuous reinforcing crack degree flow chart of the present invention
Figure 14 is a rectangular slits subroutine flow chart of the present invention
Five, the specific embodiment
The present invention shown in Figure 1 comprises: current rectifying and wave filtering circuit, driver, motor, sewing machine head, sensor, man-machine interface, controller, on-off circuit and electromagnetic valve.Wherein: electrical network is connected motor by current rectifying and wave filtering circuit with driver; Motor connects sewing machine head; Motor connects controller by sensor, and sewing machine head connects controller by sensor; Controller output connects driver, and controller output is connected sewing machine head by on-off circuit with electromagnetic valve.Controller is connected with man-machine interface and obtains input information.During work: electrical network arrives driver by current rectifying and wave filtering circuit Will power delivery, when controller receives the input information of setting, send command signal to driver, driver produces signal wave control motor speed, the sensor that links to each other with motor goes out the actual speed of motor, returns again to be fed to controller, relatively obtains error with the setting speed of importing on the man-machine interface, according to corresponding input instruction, under the control of corresponding program, finish startup, parking, speed governing etc. again.The sensor that links to each other with head goes out the last pin position of head, following pin position signal, also returns and is fed to controller, by the driving of corresponding program matched orders signal controlling electromagnetic valve, finishes trimming, pipeline purging, commutation etc.
Control program flow chart shown in Figure 2 comprises: sign on, system initialization, have or not initiating signal to judge, enter the keyboard scan program, state shows, enters pattern subprogram, running status, speed governing, braking, end.After system starts working, at first carry out initialization, judge then to have or not initiating signal.If no initiating signal, system enters the keyboard scan program, judges that keyboard has signal, and system turns back to and has or not initiating signal, rejudges; Judge the keyboard no signal, carry out state and show the back end.If have initiating signal, system to enter pattern subprogram duty,, finish at last through running status, speed governing, three courses of work of braking.
Man-machine interface shown in Figure 3 scanning subroutine flow chart comprises: sign on, whether have that key is closed to be judged, call time-delay 12ms, key and closedly do not judge, judge closed key number, enter each key subprogram.After system starts working, judged whether the key closure, if no key closure, whether have key closed judge module, rejudge if turning back to; If the key closure is arranged, call time delay subroutine time-delay 12ms, judged whether the key closure again, if no key closure, whether have key closed judge module, rejudge if turning back to first.If the key closure, judge again closed key number to enter each key subprogram then.
State display subroutine flow chart shown in Figure 4 comprises: sign on, setting equal 1 (SET=1) and judge, enter the function setting module, revise parameter, show that result, cursor are in starting point, model selection, demonstration, modification parameter, end.After system starts working, judge to be provided with whether equal 1, equal 1 if be provided with, enter the function setting module, the parameter of going to make amendment, demonstration result finish at last.Be not equal to 1 if be provided with, whether judge cursor,, finish at last if cursor in starting point, carries out model selection, demonstration in starting point.If cursor is not in starting point, the parameter of making amendment, demonstration finish at last.
Speed adjusting module subroutine flow chart shown in Figure 5 comprises: close to interrupt, detect tachometer signal and calculate actual speed, given rotating speed whether greater than actual speed, account for control than controlled quentity controlled variable increase certainly, time-delay, the error of calculation, carry out the PID computing produce account for control than controlled quentity controlled variable, account for control than controlled quentity controlled variable whether surpass the upper limit, set account for control than controlled quentity controlled variable equal the upper limit, set the software timer control word, account for control than controlled quentity controlled variable whether be lower than lower limit, setting accounts for control and equals lower limit, opens interruption than controlled quentity controlled variable.After system closes and interrupts, at first detect tachometer signal and calculate actual speed, do you judge that then given rotating speed is greater than actual speed? if given rotating speed is not more than actual speed, accounting for control increases certainly than controlled quentity controlled variable, time-delay, turn back to given rotating speed then whether greater than the inlet of actual speed, judge that once more whether given rotating speed is greater than actual speed, if given rotating speed is greater than actual speed, the error of calculation at first, then carry out PID computing generation and account for control, judge that then whether account for control surpasses the upper limit than controlled quentity controlled variable, equals the upper limit if account for control with regard to setting than controlled quentity controlled variable than controlled quentity controlled variable, after setting the software timer control word, open interruption; If not just judge whether account for control is lower than lower limit than controlled quentity controlled variable, just set and account for control and equal lower limit if be lower than lower limit than controlled quentity controlled variable, open interruption at last; If not be lower than lower limit, then directly open interruption.
Operation module subroutine flow chart shown in Figure 6 comprises: release all electromagnetic valves, judge present mode, enter pattern 1, enter pattern 2, enter mode 3, enter pattern 4, clear PWM control, close interrupt, time-delay a period of time, end.After working state of system enters all electromagnetic valves of release, judge present mode immediately, can enter in pattern 1, pattern 2, mode 3, the pattern 4 as required respectively, then the control signal of erase pulse width modulated, close then and interrupt, finish after a period of time of delaying time again.
System shown in Figure 7 braking subroutine flow chart comprises: sign on, establish actual speed n and supposition speed n ', n＜n ', software braking, reversing braking, end.After system starts working, when system detects stop sign, at first make the motor actual speed n reach certain supposition cut-off velocity value n ', carry out the judgement of n＜n ' from high speed or low speed.If n＜n ' is false, then carry out the software braking earlier, set up up to n＜n '; If n＜n ' sets up, switch to reversing braking.Finish at last.
Wherein: between non-PWM modulation period, the power pipe of brachium pontis under this brshless DC motor drive system of conducting forms the energy consumption loop, but because the influence of counter electromotive force, current reversal is by the moment formula
It is reverse to get electromagnetic torque, and opposite with velocity attitude, electromagnetic torque becomes braking moment, can make motor enter on-position.
During work, system detects accurate position signalling, continues its corresponding power pipe of brachium pontis down of conducting, forms the braking moment that continues, and motor will get off in very fast braking.Because we adopt software to come conducting power pipe, so claim that this method is the software braking.
In electric braking, the effect of reversing braking is the most obvious, it is exchanged the electric power polarity at motor two ends once, at this moment make armature voltage opposite with the running speed direction of motor, machine operation is at second quadrant, produce bigger braking moment, because magnetic field and turn to inconvenience at this moment, so the counter electromotive force direction is constant.
Be U=-U, E=E;
So balance of voltage equation during the electric voltage reverse-connection braking:
After the arrangement, get armature supply
This moment, armature supply was reverse, by formula T
m=C
mI
d, electromagnetic torque is also reverse, and this moment, electromagnetic torque was opposite with the direction of rotating speed, changeed distance so become braking.Can be got by top formula, the voltage at these moment armature two ends increases two times, and this is the advantage of reversing braking, can produce double braking moment, so motor can stop in the short period of time.
According to above-mentioned principle, want motor and realize reversing braking, according to the position signalling of three phase electric machine, conducting opposite power pipe when electronic is realized the reverse of motor power.Fig. 9 for example, conducting s when electronic
1, s
2Two pipes, when braking, we can conducting s
5, s
6, just can make the armature voltage reversal, form reversing braking.
By research, software braking and the reversing braking Hu Knot method of closing has Xiang been proposed to system's braking method.When system detects stop sign, carry out software braking earlier, make motor when dropping to certain speed (assumed value) at a high speed, switch to reversing braking.
Dc brushless motor of the present invention shown in Figure 8 comprises motor body, position sensor and power conversion circuit three parts, and power conversion circuit comprises power switch and electronic commutation circuit.
The armature of conventional DC motor links to each other with dc source with commutator by brush, the electric current of armature itself is an alternation, and brshless DC motor is keeping the good control characteristic of direct current generator, similar with direct current generator on operation principle, but its armature winding is placed on the stator, do not have winding on the rotor, adopt rare-earth permanent magnet to form main field.Brshless DC motor promptly replaces mechanical commutation with the electronics commutation with the brush and the commutator of position of magnetic pole testing circuit and electronic power switch inverter replacement brush motor.The position signalling of rotor is provided by position sensor, in controller, produce corresponding switching signal through reasoning from logic, make inverter conducting in a certain order, dc source is added in one by one on each phase winding of motor, produce three-phase current and alternating magnetic field, interact with the rotating excitation field of main rotor magnetic pole, produce electromagnetic torque.
The stator of general permanent magnetic DC motor is made up of permanent-magnet steel, and its significant feature is to produce magnetic field in motor air gap.Its armature winding energising back produces magnetic reaction fields.Because the commutation effect of brush, it is vertical mutually to make that the direction in these two magnetic fields remains in the process of dc motor operation, thereby produces maximum torque and drive motor ceaselessly turns round.Dc brushless motor at first requires the armature winding of general direct current generator is placed on the stator in order to realize the brushless commutation, and permanent magnetic steel is placed on the rotor, and this structure with traditional dc permanent magnet motor is just opposite.But only do so still not all right because with general dc source to each winding power supply on the stator, can only produce fixed magnetic field, it can not interact with the permanent magnetic field that motion rotor magnet steel is produced drive rotor rotation with the commentaries on classics distance that produces single direction.So dc brushless motor is except being made of the body of motor stator and rotor, also want the common reversing arrangement that constitutes of position sensor, control circuit and logical power on-off circuit, make the dc brushless motor magnetic field that stator winding produced in running and rotate in the permanent magnetic field that rotor magnetic steel produced, remain at the electrical angle about (90 °) in the space.
Shown in Figure 9 is the drive system of brshless DC motor, has adopted three-phase full-controlled bridge conducting structure in twos.What is called conduction mode in twos is meant that there is the conducting of two power conduction pipes each moment, (the 60 ° of electrical angles) commutation of each 1/6 cycle once, 120 ° of electrical angles of each power tube conducting of a power tube commutate at every turn.The conducting of each power tube is V1V6 in proper order, V6V3, and V3V2, V2V5,, V5V4, V4V1 ...When power tube V1V6 conducting, electric current flows into the A phase winding from the V1 pipe, flows out from the C phase winding again, gets back to power supply through the V6 pipe.Join living torque for just if assert to flow into the electric current of winding, that is petty, and to flow out the torque that is produced from winding be to bear.After motor turns over 60 °, there is the V1V6 energising to change the V3V6 energising into.At this moment, electric current flows into the B phase winding from V3 and flows out from the C phase winding, gets back to power supply through the V6 pipe.Then each power tube of commutation, synthetic torque vector direction are just along with turning over 60 ° of electrical angles, but size remains √ 3T
aConstant.
So, a same DC Brushless Motor, every group of winding adopts the full control circuit of three-phase star connection by with the same electric current of three-phase half control circuit the time, and under the situation of commutation in twos, its synthetic torque has increased by 3 times of √.
Figure 10 shows that trapezoidal control curve of the present invention.The rate curve of general motor has 3 classes: trapezoidal, triangle and hyperbola.Hyperbolic velocity control curve is optimal, saves energy most, can provide level and smooth acceleration and deceleration in end positions.But implementing calculated curve will increase the expense of CPU greatly.Leg-of-mutton calculating is simple more than hyperbola, but at leg-of-mutton top, transition very unsmooth.Step curve is the compromise of last two kinds of curves, and native system is selected trapezoidal control curve for use.
In Figure 10, start, boost phase we can carry out open loop control, make motor carry out soft start, quicken with constant acceleration, when arriving predetermined value, enter the stable state speed governing stage, carry out the stable state speed governing with the integral-separated PI control algolithm again.
Because this kind method combines the governor control characteristics of brushless electric machine, has brought into play software again than the characteristics that are easier to revise, and has significantly reduced the consumption and the noise of motor power, has guaranteed the stability and the accuracy of system again.
Free crack program flow diagram shown in Figure 11 comprises: enter pattern 1 instruction, reinforce the pin number that reinforcing is just being stitched before judging, calculating before whether having and carry out, adhesive is instead stitched valve, reinforce the pin number of anti-seam before calculating and carry out, discharge anti-seam valve, freedom of entry slit die formula, pedal whether unclamp judgements, close interrupt and withdraw from freely stitch, whether pedal steps on judgement forward, step on backward and trimming sign, benefit pin, execution benefit pin subprogram, trimming take-up, end arranged.During work, system enters pattern 1, and promptly free slit die formula is judged earlier during startup, if preceding reinforcing is arranged, then move the A pin earlier, the person's of being right after inverted running B pin freely stitches then, as long as pedal is stepped on, just operation does not always have the restriction of locking pin number, when pedal is got back to original position, then stops sewing.At this moment if pedal continues forward to step on, then repeat the action of describing just now; If pedal is stepped on backward, after stepping on backward, judgement has or not the trimming sign, if the trimming sign is arranged, carry out and mend the pin subprogram, can mend pin; If no trimming sign, the trimming key is effective, finishes the action of trimming take-up, finishes at last.
Locking pin number shown in Figure 12 is reinforced the crack program flow diagram, comprising: enter pattern 2 instructions, reinforce the pin number that reinforcing is just being stitched before judging, calculating before whether having and carry out, adhesive is instead stitched valve, reinforce the pin number of anti-seam before calculating and carry out, discharge anti-seam valve, enter the pin number fixing reinforce slit die formula, pedal whether unclamp judgements, close interrupt and withdraw from freely stitch, whether pedal steps on judgement forward, step on backward and have trimming sign, benefit pin, execution to mend pin subprogram, trimming take-up, end.During work, system enters pattern 2, i.e. the fixing slit die formula of reinforcing of pin number, judge earlier during startup,, then move the A pin earlier if preceding reinforcing is arranged, the person's of being right after inverted running B pin freely stitches then, as long as pedal is stepped on, just operation always, the restriction of locking pin number is arranged, and when pedal was got back to original position, sewing continued, set the pin number up to finishing, just stop sewing.At this moment if pedal continues forward to step on, then repeat the action of describing just now; If pedal is stepped on backward, after stepping on backward, judgement has or not the trimming sign, if the trimming sign is arranged, carry out and mend the pin subprogram, can mend pin; If no trimming sign, the trimming key is effective, finishes the action of trimming take-up, finishes at last.
Continuous reinforcing crack degree flow chart shown in Figure 13 comprises: enter mode 3 instruction, reinforce the pin number that reinforcing is just being stitched before judging, calculating before whether having and carry out, adhesive is instead stitched valve, reinforce the pin number of anti-seam before calculating and carry out, discharge anti-seam valve, enter continuous reinforcing slit die formula, whether pedal unclamps judgements, close interrupt and withdraw from freely stitch, whether pedal steps on judgement forward, step on backward and trimming sign, benefit pin, execution benefit pin subprogram, trimming take-up, end arranged.During work, system enters mode 3, promptly reinforces the slit die formula continuously, judge earlier during startup,, then move the A pin earlier if preceding reinforcing is arranged, the person's of being right after inverted running B pin freely stitches then, as long as pedal is stepped on, just operation always, the restriction of locking pin number is arranged, and when pedal was got back to original position, sewing continued, set the pin number up to finishing, just stop sewing.At this moment if pedal continues forward to step on, then repeat the action of describing just now; If pedal is stepped on backward, after stepping on backward, judgement has or not the trimming sign, if the trimming sign is arranged, carry out and mend the pin subprogram, can mend pin; If no trimming sign, the trimming key is effective, finishes the action of trimming take-up, finishes at last.
Rectangular slits subroutine flow chart shown in Figure 14 comprises: enter pattern 4 instruction, reinforce the pin number that reinforcing is just being stitched before judging, calculating before whether having and carry out, adhesive is instead stitched valve, reinforce the pin number of anti-seam before calculating and carry out, discharge anti-seam valve, enter the rectangular slits pattern, whether pedal unclamps judgements, close interrupt and withdraw from freely stitch, whether pedal steps on judgement forward, step on backward and trimming sign, benefit pin, execution benefit pin subprogram, trimming take-up, end arranged.During work, system enters pattern, i.e. the rectangular slits pattern, judge earlier during startup,, then move the A pin earlier if preceding reinforcing is arranged, the person's of being right after inverted running B pin freely stitches then, as long as pedal is stepped on, just operation always, the restriction of locking pin number is arranged, and when pedal was got back to original position, sewing continued, set the pin number up to finishing, just stop sewing.Because rectangle has four edges, therefore need pedal to step on forward four times.In the process of rectangular slits, can end on any one side, stop sewing.At this moment if pedal continues forward to step on, then repeat the action of describing just now; If pedal is stepped on backward, after stepping on backward, judgement has or not the trimming sign, if the trimming sign is arranged, carry out and mend the pin subprogram, can mend pin; If no trimming sign, the trimming key is effective, finishes the action of trimming take-up, finishes at last.
Claims (6)
1, a kind of servo system for sewing machine, comprise current rectifying and wave filtering circuit, driver, motor, sewing machine head, sensor, man-machine interface, controller, on-off circuit and electromagnetic valve, it is characterized in that: described motor has adopted the three-phase direct-current brushless motor, and electrical network is connected motor by current rectifying and wave filtering circuit with driver; Motor connects sewing machine head; Motor connects controller by sensor, and sewing machine head connects controller by sensor; Controller output connects driver, and controller output is connected sewing machine head by on-off circuit with electromagnetic valve; Controller links to each other with man-machine interface.
2, a kind of servo system for sewing machine according to claim 1 is characterized in that: described three-phase direct-current brushless motor has adopted three-phase full-controlled bridge conducting structure in twos.
3, a kind of servo system for sewing machine according to claim 1 is characterized in that: what the pulse-width modulation circuit of described driver produced is six road PWM waveforms.
4, a kind of servo system for sewing machine according to claim 1 is characterized in that: described driver has adopted special intelligent modules A SIPM ps11015.
5, a kind of servo system for sewing machine according to claim 1, it is characterized in that: described controller has adopted single-chip microcomputer 80C196MC.
6, a kind of servo system for sewing machine according to claim 1, it is characterized in that: control program of the present invention comprises man-machine interface scanning subprogram, state display subroutine, pattern subprogram, motion state module, speed adjusting module and brake module, when system starts working, in the enabling signal that the human-machine interface module input of having no way of is arranged through inspection after the initialization, if have, then enter corresponding pattern subprogram activation, and after through the judgement of motion state module, speed adjusting module speed governing, brake by brake module; If do not have, then judge after the state display subroutine also finishes through man-machine interface scanning subprogram again.Wherein:
(1) operation mode module: realize the user according in selected several basic working modes of technological requirement any one, and enter corresponding pattern work.
(2) speed adjusting module: comprise the commutation module of motor, speed PI controller, current PI controller.
(3) brake module: by software braking and reversing braking Xiang Hu Knot close the fast braking of realization system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510042848 CN1702222A (en) | 2005-06-24 | 2005-06-24 | Servo system for sewing machine |
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|---|---|---|---|
| CN 200510042848 CN1702222A (en) | 2005-06-24 | 2005-06-24 | Servo system for sewing machine |
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Cited By (12)
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| CN101834556A (en) * | 2010-03-19 | 2010-09-15 | 义乌市华晨机电有限公司 | Quick shutdown system and method of industrial sewing machine |
| CN101340166B (en) * | 2007-07-06 | 2010-11-17 | 中山大洋电机股份有限公司 | Communication method for electronic commutation motor controller |
| CN101136574B (en) * | 2006-08-28 | 2011-01-12 | 中山大洋电机股份有限公司 | DC brushless motor system |
| CN102704211A (en) * | 2012-06-26 | 2012-10-03 | 吴江市金真缝纫机有限公司 | Precise control system for sewing machine |
| CN102704210A (en) * | 2012-06-26 | 2012-10-03 | 吴江市金真缝纫机有限公司 | Control system for industrial sewing machine |
| CN103560719A (en) * | 2013-10-21 | 2014-02-05 | 苏州华之杰电讯有限公司 | Brushless motor control circuit |
| CN103572514A (en) * | 2013-10-24 | 2014-02-12 | 卧龙电气集团股份有限公司 | Precise positioning system of industrial sewing machine and working method of precise positioning system |
| CN103696167A (en) * | 2013-12-30 | 2014-04-02 | 浙江众邦机电科技有限公司 | Control device for industrial sewing machines |
| CN107780073A (en) * | 2016-08-26 | 2018-03-09 | 天津市中马骏腾精密机械制造有限公司 | A kind of Intelligent sewing machine with magnetic valve function of safety protection |
| CN108866846A (en) * | 2018-06-12 | 2018-11-23 | 杰克缝纫机股份有限公司 | A kind of sewing machine trimming control method and mechanism and overedger |
| CN112251922A (en) * | 2020-10-13 | 2021-01-22 | 琦星智能科技股份有限公司 | Sewing method of sewing machine |
| CN112740541A (en) * | 2018-09-26 | 2021-04-30 | 西门子股份公司 | Method for maintaining the rotational position of a rotor of a permanently excited three-phase electric machine having a soft starter, to which an external torque is applied, and three-phase electric machine |
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2005
- 2005-06-24 CN CN 200510042848 patent/CN1702222A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN101340166B (en) * | 2007-07-06 | 2010-11-17 | 中山大洋电机股份有限公司 | Communication method for electronic commutation motor controller |
| CN101834556A (en) * | 2010-03-19 | 2010-09-15 | 义乌市华晨机电有限公司 | Quick shutdown system and method of industrial sewing machine |
| CN102704211A (en) * | 2012-06-26 | 2012-10-03 | 吴江市金真缝纫机有限公司 | Precise control system for sewing machine |
| CN102704210A (en) * | 2012-06-26 | 2012-10-03 | 吴江市金真缝纫机有限公司 | Control system for industrial sewing machine |
| CN103560719A (en) * | 2013-10-21 | 2014-02-05 | 苏州华之杰电讯有限公司 | Brushless motor control circuit |
| CN103572514A (en) * | 2013-10-24 | 2014-02-12 | 卧龙电气集团股份有限公司 | Precise positioning system of industrial sewing machine and working method of precise positioning system |
| CN103572514B (en) * | 2013-10-24 | 2015-07-08 | 卧龙电气集团股份有限公司 | Precise positioning system of industrial sewing machine and working method of precise positioning system |
| CN103696167A (en) * | 2013-12-30 | 2014-04-02 | 浙江众邦机电科技有限公司 | Control device for industrial sewing machines |
| CN103696167B (en) * | 2013-12-30 | 2015-07-01 | 浙江众邦机电科技有限公司 | Control device for industrial sewing machines |
| CN107780073A (en) * | 2016-08-26 | 2018-03-09 | 天津市中马骏腾精密机械制造有限公司 | A kind of Intelligent sewing machine with magnetic valve function of safety protection |
| CN108866846A (en) * | 2018-06-12 | 2018-11-23 | 杰克缝纫机股份有限公司 | A kind of sewing machine trimming control method and mechanism and overedger |
| CN112740541A (en) * | 2018-09-26 | 2021-04-30 | 西门子股份公司 | Method for maintaining the rotational position of a rotor of a permanently excited three-phase electric machine having a soft starter, to which an external torque is applied, and three-phase electric machine |
| CN112251922A (en) * | 2020-10-13 | 2021-01-22 | 琦星智能科技股份有限公司 | Sewing method of sewing machine |
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