CN203466758U - Double-motor position feedback control system of sewing machine - Google Patents
Double-motor position feedback control system of sewing machine Download PDFInfo
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- CN203466758U CN203466758U CN201320412989.8U CN201320412989U CN203466758U CN 203466758 U CN203466758 U CN 203466758U CN 201320412989 U CN201320412989 U CN 201320412989U CN 203466758 U CN203466758 U CN 203466758U
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- servomotor
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- speed
- comparator
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Abstract
The utility model is a double-motor position feedback control system of a sewing machine. The double-motor position feedback control system is characterized by comprising a first position sensor, a first encoder, a second position sensor, a second encoder, a controller and a relay circuit, wherein the first position sensor is arranged in a servo motor and transmits acquired rotor position information of the servo motor to the controller at a time interval T0 (T0 is greater than 0), the first encoder is arranged on an output shaft of the servo motor and transmits acquired main shaft speed information of the motor to the controller at a time interval T0 (T0 is greater than 0), the controller includes a data converter, a displacement comparator and a speed comparator, and the data converter converts data acquired by the first and second position sensors and the first and second encoders into data of the displacement comparator and the speed comparator under the same voltage. Under the condition of double-motor application, linkage performance of the double motors is fed back to ensure the motors to be synchronous and stable.
Description
Technical field
The utility model relates to a kind of control system of sewing machine, particularly a kind of bi-motor position feedback control system of sewing machine.
Background technology
Sewing-machine control systems of the prior art, includes the control system of servomotor, and adopts open-loop control system more.
As Chinese patent < < sewing machine > >, a kind of sewing machine is disclosed, it comprises the pulse motor that makes to process the driven object portion that cloth and suture needle relatively move for driving; Drive up and down the electrical motor of sewing machine of suture needle; Paired pulses motor and electrical motor of sewing machine drive the control device of controlling, it is characterized in that, have be attached on described pulse motor, encoder apparatus that the actual rotation amount of paired pulses motor detects, described control device is controlled with open loop approach paired pulses motor, and the rotation amount of the pulse motor that can detect according to encoder apparatus is controlled electrical motor of sewing machine simultaneously.
The mode that adopts open loop to control in above-mentioned patented technology, the stability of drive disk assembly and execution unit is not high.
For above-mentioned defect, the utility model creator provides a kind of more perfect scheme.
Summary of the invention
The purpose of this utility model is to provide a kind of bi-motor position feedback control system of sewing machine, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the utility model provides a kind of bi-motor position feedback control system of sewing machine, it comprises a primary importance transducer, one first encoder, a second place transducer, one second encoder, a controller and a relay circuit, wherein, described primary importance sensor setting is in a servomotor, every the time interval
, described primary importance transducer transfers to the rotor position information of the described servomotor gathering in described controller; Described second place sensor setting is in a stepping motor, every the time interval
, described second place transducer transfers to the rotor position information of the described stepping motor gathering in described controller; Described the first encoder is arranged on the output shaft of described servomotor, every the time interval
, described the first encoder by the speed of mainshaft communication of the motor gathering to described controller; Described the second encoder is arranged on the output shaft of described stepping motor, every the time interval
, described the second encoder by the speed of mainshaft communication of the motor gathering to described controller; The described controller of stating comprises a data converter, a displacement comparator and a speed comparator, and described data converter becomes described displacement comparator and the data of speed comparator under same voltage by the data transaction of described the one or two, position transducer and first and second encoder collection; Described displacement comparator, is stored with a default servomotor and the position threshold of stepping motor rotor, and it compares the positional information of collection and this default position threshold, and it transfers in described processor by result; Described speed comparator, be stored with the angular speed threshold value of default a servomotor and stepping motor, described the 2nd PLC processor compares the angular velocity information collecting and this default angular speed threshold value, and result is out transferred in described processor; Described processor judges the comparative result of the position of synchronization and speed, if both positions of described stepping motor or servomotor and velocity amplitude be not all in default threshold range, described processor, to the start and stop relay circuit sending controling instruction in connected relay circuit, is controlled described servomotor stop motion.
Further, described processor is done the velocity amplitude information of the stepping motor of synchronization and servomotor to compare, contrast with the rotating ratio threshold value of default two motors within it, if this value is not in default rotating ratio threshold range, described processor is to described the relay circuit sending controling instruction that stops, described stepping motor and servomotor stop motion.
Further, described data converter comprises a coupling protective circuit, a filter circuit, a gain amplifier circuit and the output port connecting in turn,
Wherein, described coupling protective circuit, it is in order to suppress electrical interference, and signal obtains demand data waveform by filter circuit after described coupling protective circuit, after described gain amplifier module is amplified, is loaded on a predeterminated voltage
, and transfer in described displacement comparator and speed comparator through described output port.
Further, described relay circuit also comprises an acceleration and deceleration relay circuit, if the comparative result of position and speed has one in default threshold range, described processor is to described acceleration and deceleration relay circuit sending controling instruction, described acceleration and deceleration relay circuit action, the corresponding acceleration and deceleration of described servomotor.
Further, described displacement comparator comprises a PLC processor.
The beneficial effects of the utility model are compared with the prior art: after the utility model gathers respectively the rotor-position of servomotor and output shaft speed, compare with a default threshold value simultaneously, according to the comparison result of feedback, by a relay circuit, servomotor is controlled at any time, assurance motor is not lost step, the excessive heating damage motor reducing guarantees the stable operation of running part and operating part simultaneously; Under the applicable cases of bi-motor, the interlock performance of bi-motor is fed back, guarantee net synchronization capability and the stability of motor; Described data converter is reduced to the signal of collection on one predeterminated voltage, guarantees the accuracy of comparing result.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the bi-motor position feedback control system of the utility model sewing machine;
Fig. 2 is the functional block diagram of data converter of the bi-motor position feedback control system of the utility model sewing machine.
Embodiment
Below in conjunction with accompanying drawing, detailed technology feature of the present utility model is further described, to more clearly understand the utility model.
Refer to shown in Fig. 1, it is the block diagram of function of the bi-motor position feedback control system of the utility model sewing machine, this feedback control system comprises a servomotor 1, one primary importance transducer 2, one first encoder 3, one stepping motor 11, one second place transducer 12, one second encoder 13, one controller 4 and a relay circuit 5, wherein, described primary importance transducer 2 is arranged in described servomotor 1, it is the position in motion process in order to the main rotor that detects described servomotor 1, convert the position signalling of rotor magnetic steel magnetic pole to the signal of telecommunication, and transfer in described controller 4, described the first encoder 3 is arranged on the output shaft of described servomotor 1, and its angular speed of measuring described servomotor 1 converts to after the signal of telecommunication, transfers in described controller 4, described second place transducer 12 is arranged in described stepping motor 11, and it is the position in motion process in order to the main rotor that detects described stepping motor 2, and by electric signal transmission to described controller 4, described the second encoder 13 is arranged on the output shaft of described stepping motor 13, and its angular speed of measuring described stepping motor 11 converts to after the signal of telecommunication, transfers in described controller 4.
In the utility model, between described stepping motor 11 and servomotor 1, control respectively different driving members, described servomotor 1 is connected with the main shaft of sewing machine, described stepping motor is connected with mass transport axle, between two motors, link, therefore the rotating speed between two motors turns round according to default rotating ratio.
In the utility model, if often circling, electric machine main shaft or rotor carry out single pass, will increase numerous and diverse degree of controller deal with data, therefore in order to alleviate the workload of controller and to keep institute's location to put the simultaneity with corresponding speed, set in advance a time interval
, per interval
, described position transducer and encoder respectively by the rotor position information of two motors gathering and the speed of mainshaft communication of motor to described controller.
Refer to shown in Fig. 2, it is the functional block diagram of data converter of the position feedback control system of the utility model sewing machine, described controller 4 comprises a data converter 41, a displacement comparator 42 and a speed comparator 43, described data converter 41 is changed the data of described position transducer 42 and rotary encoder 43 collections, converts described displacement comparator 42 and the data of speed comparator 43 under same voltage to.Described data converter 41 comprises a coupling protective circuit 411, a filter circuit 412, a gain amplifier circuit 413 and an output port 414; above-mentioned each module connects in turn; wherein; described coupling protective circuit 311; it is in order to suppress electrical interference; signal obtains demand data waveform by filter circuit 312 after described coupling protective circuit 311, after described gain amplifier module 313 is amplified, is loaded on a predeterminated voltage
, and transfer in described displacement comparator 42 and speed comparator 43 through described output port 414.
The information of described primary importance transducer 2 and second place transducer 12 transfers in described displacement comparator 42 after conversion, described displacement comparator 42 comprises one the one PLC processor, be stored with a default servomotor and the position threshold of stepping motor rotor, a described PLC processor compares the positional information of collection and this default position threshold, and it transfers in described processor 44 by result; Described the first encoder 3 and the second encoder 13 transfer to the velocity information of collection in described speed comparator 43, described speed comparator 43 comprises one the 2nd PLC processor, be stored with the angular speed threshold value of default a servomotor and stepping motor, described the 2nd PLC processor compares the angular velocity information collecting and this default angular speed threshold value, and result is transferred in described processor 44.
Described processor 44 is by the position of synchronization and speed comparative result, judge, if both positions of stepping motor or servomotor and velocity amplitude be not all in default threshold range, described processor 44 is to connected relay circuit 5 sending controling instructions, described relay circuit 5 comprises a start and stop relay circuit and an acceleration and deceleration relay circuit, described start and stop relay circuit action, described servomotor or stepping motor stop motion; If the position of stepping motor or servomotor and speed numerical value one of them not in default threshold range, described processor 44 is to described acceleration and deceleration relay circuit sending controling instruction, described acceleration and deceleration relay circuit action, the corresponding acceleration and deceleration of described servomotor or stepping motor, to guarantee the stability of described running part.
Simultaneously, described processor 44 is done the velocity amplitude information of the stepping motor of synchronization and servomotor to compare, contrast with the rotating ratio threshold value of default two motors within it, if this value is not in default rotating ratio threshold range, described processor 44 is to the described relay circuit sending controling instruction that stops, described stepping motor 11 and servomotor 1 stop motion.
After the utility model gathers respectively the rotor-position of servomotor and output shaft speed, compare with a default threshold value simultaneously, according to the comparison result of feedback, by a relay circuit, servomotor is controlled at any time, assurance motor is not lost step, the excessive heating damage motor reducing guarantees the stable operation of running part and operating part simultaneously; Under the applicable cases of bi-motor, the interlock performance of bi-motor is fed back, guarantee net synchronization capability and the stability of motor.
For referencial use with preferred embodiment above, technical characterictic of the present utility model and effect have been carried out to brief description, the utility model is not limited to above-mentioned execution mode, and within not departing from the scope of the utility model aim, those skilled in the art can do various changes and modification.
Claims (5)
1. the bi-motor position feedback system of a sewing machine, it is characterized in that, it comprises a primary importance transducer, one first encoder, a second place transducer, one second encoder, a controller and a relay circuit, wherein, described primary importance sensor setting is in a servomotor, every the time interval
, described primary importance transducer transfers to the rotor position information of the described servomotor gathering in described controller; Described second place sensor setting is in a stepping motor, every the time interval
, described second place transducer transfers to the rotor position information of the described stepping motor gathering in described controller; Described the first encoder is arranged on the output shaft of described servomotor, every the time interval
, described the first encoder by the speed of mainshaft communication of the motor gathering to described controller; Described the second encoder is arranged on the output shaft of described stepping motor, every the time interval
, described the second encoder by the speed of mainshaft communication of the motor gathering to described controller; The described controller of stating comprises a data converter, a displacement comparator and a speed comparator, and described data converter becomes described displacement comparator and the data of speed comparator under same voltage by the data transaction of described the one or two, position transducer and first and second encoder collection; Described displacement comparator, is stored with a default servomotor and the position threshold of stepping motor rotor, and it compares the positional information of collection and this default position threshold, and it transfers in processor by result; Described speed comparator, is stored with the angular speed threshold value of default a servomotor and stepping motor, and the 2nd PLC processor compares the angular velocity information collecting and this default angular speed threshold value, and result is out transferred in described processor; Described processor judges the comparative result of the position of synchronization and speed, if both positions of described stepping motor or servomotor and velocity amplitude be not all in default threshold range, described processor, to the start and stop relay circuit sending controling instruction in connected relay circuit, is controlled described servomotor stop motion.
2. the bi-motor position feedback system of sewing machine according to claim 1, it is characterized in that, described processor is done the velocity amplitude information of the stepping motor of synchronization and servomotor to compare, contrast with the rotating ratio threshold value of default two motors within it, if this value is not in default rotating ratio threshold range, described processor is to described the relay circuit sending controling instruction that stops, described stepping motor and servomotor stop motion.
3. the bi-motor position feedback system of sewing machine according to claim 2; it is characterized in that; described data converter comprises a coupling protective circuit, a filter circuit, a gain amplifier circuit and the output port connecting in turn; wherein; described coupling protective circuit, it is in order to suppress electrical interference, and signal obtains demand data waveform by filter circuit after described coupling protective circuit; after described gain amplifier module is amplified, be loaded on a predeterminated voltage
, and transfer in described displacement comparator and speed comparator through described output port.
4. the bi-motor position feedback system of sewing machine according to claim 3, it is characterized in that, described relay circuit also comprises an acceleration and deceleration relay circuit, if the comparative result of position and speed has one in default threshold range, described processor is to described acceleration and deceleration relay circuit sending controling instruction, described acceleration and deceleration relay circuit action, the corresponding acceleration and deceleration of described servomotor.
5. the bi-motor position feedback system of sewing machine according to claim 3, is characterized in that, described displacement comparator comprises a PLC processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320412989.8U CN203466758U (en) | 2013-07-11 | 2013-07-11 | Double-motor position feedback control system of sewing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320412989.8U CN203466758U (en) | 2013-07-11 | 2013-07-11 | Double-motor position feedback control system of sewing machine |
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| CN203466758U true CN203466758U (en) | 2014-03-05 |
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| CN201320412989.8U Expired - Fee Related CN203466758U (en) | 2013-07-11 | 2013-07-11 | Double-motor position feedback control system of sewing machine |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418477A (en) * | 2018-02-09 | 2018-08-17 | 福建睿能科技股份有限公司 | Synchronisation control means, electronic equipment and the device with store function of motor |
| CN110759004A (en) * | 2019-12-25 | 2020-02-07 | 常州磐宇仪器有限公司 | Motor boundary determination method and self-adaptive positioning application thereof on sampling needle push rod |
| CN111555664A (en) * | 2020-04-07 | 2020-08-18 | 深圳市裕展精密科技有限公司 | Motor control system and method |
| CN113746384A (en) * | 2021-09-02 | 2021-12-03 | 中国科学院合肥物质科学研究院 | Multi-motor synchronous control device, multi-motor system and optical system |
-
2013
- 2013-07-11 CN CN201320412989.8U patent/CN203466758U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108418477A (en) * | 2018-02-09 | 2018-08-17 | 福建睿能科技股份有限公司 | Synchronisation control means, electronic equipment and the device with store function of motor |
| CN108418477B (en) * | 2018-02-09 | 2020-06-26 | 福建海睿达科技有限公司 | Synchronous control method of motor, electronic equipment and device with storage function |
| CN110759004A (en) * | 2019-12-25 | 2020-02-07 | 常州磐宇仪器有限公司 | Motor boundary determination method and self-adaptive positioning application thereof on sampling needle push rod |
| CN110759004B (en) * | 2019-12-25 | 2020-03-31 | 常州磐宇仪器有限公司 | Motor boundary determination method and self-adaptive positioning application thereof on sampling needle push rod |
| CN111555664A (en) * | 2020-04-07 | 2020-08-18 | 深圳市裕展精密科技有限公司 | Motor control system and method |
| CN113746384A (en) * | 2021-09-02 | 2021-12-03 | 中国科学院合肥物质科学研究院 | Multi-motor synchronous control device, multi-motor system and optical system |
| CN113746384B (en) * | 2021-09-02 | 2023-09-22 | 中国科学院合肥物质科学研究院 | Multi-motor synchronous control device, multi-motor system and optical system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140305 Termination date: 20170711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |