CN105755668A - Multi-speed electronic warp let-off system of improved structure - Google Patents
Multi-speed electronic warp let-off system of improved structure Download PDFInfo
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- CN105755668A CN105755668A CN201610336978.4A CN201610336978A CN105755668A CN 105755668 A CN105755668 A CN 105755668A CN 201610336978 A CN201610336978 A CN 201610336978A CN 105755668 A CN105755668 A CN 105755668A
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- Prior art keywords
- outfan
- servo
- enable pin
- spindle motor
- control board
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/16—Warp beams; Bearings therefor
- D04B27/20—Warp beam driving devices
- D04B27/22—Warp beam driving devices electrically controlled
Abstract
A multi-speed electronic warp let-off system of an improved structure comprises a warp knitting machine body structure, an industrial personal computer, a servo control board and a plurality of servo driving mechanisms for controlling a warp beam of a warp knitting machine to rotate.The servo control board comprises an ARM microcontroller, a DSP and a data storage.The output end of the industrial personal computer is connected to the ARM microcontroller and the data storage through optical fibers respectively.The output end of the ARM microcontroller is connected with the data storage and the DSP respectively.According to the multi-speed electronic warp let-off system, the optical fibers are arranged as media for data connection and transmission of the industrial personal computer, the servo control board and the servo driving mechanisms, the control requirement for real-time high-speed data transmission in the working environment of strong electromagnetic interference and large data throughput can be met, it is ensured that target position instructions for the servo control board and the servo driving mechanisms can be updated in real time during operation of the industrial personal computer, the communication mode is low in production cost, and the communication cost is greatly saved.
Description
Technical field
The present invention relates to warp knit mechanical field, refer in particular to a kind of structure improved multi-speed electronic let-off control system.
Background technology
Feeding system of warp is to make warp thread unwind warp beam, sends into the system of looping mechanism according to certain warp run-in.It is one of (tricot machine, weft machine) most important ingredient in Knitting Machinery, directly affects quality and the flower pattern kind of warp knit product.
For now, there is a large amount of eighties of last century import at end of the nineties tricot machine in domestic warp knit enterprise, mostly adopts FAG mechanical type feeding system of warp, or first wife's single speed EBA electronic let-off control system cannot solve product diversification problem, and degradation failure rate is high, needs upgrading badly.Therefore in the urgent need to absorbing on the basis of domestic and international advanced technology, the multi-speed EBC warp knit electronic let-off control system that from warp knit enterprise practical situation, self owned development technique is advanced, easy to control, cost performance is higher.
Present Domestic most enterprises is to adopt the positive mechanical type warp let-off and single speed EBA.But, for the quickening of currently a popular trend, the various occasion of warp knit flower pattern, positive mechanical type warp let-off product has seemed very backward, and adopting single speed EBA is self-evident for ensureing the advantage of warp knit efficiency, quality and maintenance maintenance cost.But, for meeting, warp knit flower pattern is various and high efficiency multi-speed electronic warp feeding technical research is very few, presently, there are following major technology bottleneck: existing feeding system of warp wiring complexity, working environment is again the feature that there is strong electromagnetic, big data throughput, in production process, circuit easily causes equipment fault because of aging or loss, and volume of transmitted data is little, it is impossible to realize multi-level decentralised control.
Summary of the invention
The present invention provides a kind of structure improved multi-speed electronic let-off control system, and its main purpose is in that to overcome the defect that wiring is complicated, equipment fault occurs greatly and easily in volume of transmitted data existed in existing feeding system of warp.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that
A kind of structure improved multi-speed electronic let-off control system, including tricot machine main body mechanism, industrial computer, Servo Control Board and a plurality of servo-actuating device for controlling the rotation of tricot machine warp beam, described Servo Control Board includes an ARM microcontroller, a DSP and a data storage, the outfan of described industrial computer is connected to the Enable Pin of described ARM microcontroller and data storage respectively through optical fiber, and the outfan of described ARM microcontroller is connected with the Enable Pin of described data storage and DSP respectively.
Further, each described servo-actuating device all include a servomotor, a servo-driver being connected with the Enable Pin of this servomotor, a tricot machine warp beam being connected with this servo motor transmission and one for detect servomotor running status through shaft encoder, the Enable Pin of each described servo-driver is connected to the outfan of described DSP simultaneously, each described outfan through shaft encoder be connected to simultaneously described DSP Enable Pin.
Further, the Enable Pin of each described servo-driver is connected to the outfan of described DSP by optical fiber, each described outfan through shaft encoder by optical fiber be connected to described DSP Enable Pin.
Further, described tricot machine main body mechanism include a main shaft, an electronic gear, one from axle, a spindle motor, one for detecting spindle encoder and a spindle motor control circuit of spindle motor running status, the moment outfan of described spindle motor is in transmission connection with described main shaft and electronic gear respectively, and the moment outfan of described electronic gear is connected from through-drive with described；The Enable Pin of described spindle motor control circuit is connected to an outfan of described Servo Control Board, and the outfan of described spindle motor control circuit is connected to the Enable Pin of described spindle motor, and the outfan of described spindle encoder is connected to described Servo Control Board.
Further, the Enable Pin that the outfan of described ARM microcontroller is also respectively connected with in described electronic gear and spindle motor control circuit connects.
Further, described spindle motor control circuit includes the soft start circuit module, fault detect protection module and the SPM that are sequentially connected electrically, and the Enable Pin of described spindle motor is connected to the outfan of described SPM.
Further, the Enable Pin of described industrial computer is provided with a touch screen.
Compared to the prior art, what the present invention produced has the beneficial effects that:
1, present configuration is simple, practical, carry out the medium of data cube computation and transmission as described industrial computer, described Servo Control Board and each servo-actuating device by arranging optical fiber, can meet this strong electromagnetic, big data throughput working environment in, carry out the control requirement of real-time and high-speed data transmission, ensure to be able to refresh in real time in industrial computer runs the target location instruction of Servo Control Board and each servo-actuating device, and this communication modes production cost is low, be greatly saved communication cost.
2, in the present invention, by arranging an electronic gear, and by Servo Control Board, it is controlled, thus in Servo Control Board when main shaft is carried out motor control, by the effect of electronic gear, also it is driven thus making the rotation of corresponding speed ratio from axle, warp run-in so can be kept constant, namely coiled hair send under the premise that yarn speed is constant, gear ratio between main shaft and warp beam changes continuously, to ensure that coiled hair rotating speed promotes gradually when spindle speed is constant, response performance is followed to what spindle speed changed thus being greatly improved Servo Control Board, it is effectively reduced the warp let-off tension fluctuation that tricot machine leaves in docking process, improve warp knit stopping line fault, realize warp knit and be responsible for various flower pattern, thus improving the performance of tricot machine.
3, in the present invention, by arranging described DSP, it is possible to as each warp beam encoder position feedback control core, it is achieved more complicated control algolithm, reach digitized, intellectuality.
4, in the present invention; by arranging soft start circuit module, fault detect protection module and a SPM; it is possible not only to for overvoltage, overcurrent, the fault detect such as overheated, under-voltage protection, and the impact to all kinds of electronic devices and components of the surge current in start-up course can be reduced.
Accompanying drawing explanation
Fig. 1 is principles of the invention block diagram.
Fig. 2 is the workflow diagram of the present invention.
Detailed description of the invention
The specific embodiment of the present invention is described with reference to the accompanying drawings.
With reference to Fig. 1.A kind of modified model multi-speed electronic let-off control system 1, including tricot machine main body mechanism 2, industrial computer 3, Servo Control Board 4 and a plurality of servo-actuating device 5 for controlling the rotation of tricot machine warp beam, described tricot machine main body mechanism 2 includes a main shaft 20, one electronic gear 21, one from axle 22, one spindle motor 23, one for detecting spindle encoder 24 and spindle motor 23 control circuit of spindle motor 23 running status, the moment outfan of described spindle motor 23 is in transmission connection with described main shaft 20 and electronic gear 21 respectively, the moment outfan of described electronic gear 21 is in transmission connection from axle 22 with described；The Enable Pin of described spindle motor control circuit is connected to an outfan of described Servo Control Board 4, the outfan of described spindle motor control circuit is connected to the Enable Pin of described spindle motor 23, the outfan of described spindle encoder 24 is connected to described Servo Control Board 4, the Enable Pin of described Servo Control Board 4 is connected to the outfan of described industrial computer 3, and described Servo Control Board 4 is bi-directionally connected with each described servo-actuating device 5.
With reference to Fig. 1.Described Servo Control Board 4 includes ARM microcontroller 40, DSP 41 and a data storage 42, the outfan of described industrial computer 3 is connected to the Enable Pin of described ARM microcontroller 40 and data storage 42, and the outfan of described ARM microcontroller 40 is connected with the Enable Pin of described data storage 42 and DSP 41 respectively.
With reference to Fig. 1.The Enable Pin that the outfan of described ARM microcontroller 40 is also respectively connected with in described electronic gear 21 and spindle motor control circuit 25 connects.Each described servo-actuating device 5 all includes servo-driver 51, that a servomotor 50, is connected with the Enable Pin of this servomotor 50 and this servomotor 50 is in transmission connection tricot machine warp beam 52 and one for detect servomotor 50 running status through shaft encoder 53, the Enable Pin of each described servo-driver 51 is connected to the outfan of described DSP 41 simultaneously, each described outfan through shaft encoder 53 be connected to simultaneously described DSP 41 Enable Pin.
With reference to Fig. 1.Described spindle motor control circuit includes the soft start circuit module, fault detect protection module and the SPM 25 that are sequentially connected electrically, and the Enable Pin of described spindle motor 23 is connected to the outfan of described SPM 25.
With reference to Fig. 1.Described industrial computer 3 is connected by optical fiber with described Servo Control Board 4.Described Servo Control Board 4 is connected by optical fiber with each servo-actuating device 5.The Enable Pin of described industrial computer 3 is provided with a touch screen.
With reference to Fig. 2.The present embodiment drives warp beam 52 to rotate according to the rotating speed of main shaft 20 and send yarn.Before tricot machine runs, first warp let-off technological parameter such as warp run-in, warp beam 52 initial outer perimeter and warp thread number of total coils etc. should be inputed to by data input device the ARM microcontroller 40 of in Servo Control Board 4 32.During tricot machine operating, ARM microcontroller 40 gathers main shaft 20 position signalling continuously by spindle encoder 24, and obtains the rotating speed of main shaft 20 according to spindle encoder 24 umber of pulse in each scan period；Meanwhile, DSP 41 calculates servomotor 50 rotating speed of current period according to data such as the warp run-in set, the initial outer perimeter of warp beam 52 and main shaft 20 rotating speeds, sends warp let-off instruction to servo-actuating device 5.The servo-driver 51 of servo-actuating device 5 receives the command speed of DSP 41, control servomotor 50 by command speed operating, servomotor 50 actual speed is fed back to servo-driver 51 by its built-in encoder by servomotor 50 simultaneously, it is achieved the internal ring of servo-actuating device 5 controls.In the present embodiment, by obtaining the instant outer perimeter calculating of warp beam 52 through shaft encoder 53, servomotor 50 command speed, warp beam 52 test the speed the pressure roller feedback ratio index such as relatively, described DSP 41 by obtaining the parameter such as the instant outer perimeter of warp beam 52 of current period and the instant warp run-in of reality through the data of shaft encoder 53 feedback, and thus calculates the command speed of the servomotor 50 in next cycle.The deviation e (t) between warp let-off output order value and the feedback actual value of the pressure roller that tests the speed according to DSP 41 controls, when this by deviation e (t) less than or equal to threshold value set in advance time, after the ratio of e (t), integration, differential linearity combination, adopt incremental Fuzzy PID that controlled warp let-off object is controlled, when this by deviation e (t) more than threshold value set in advance time, after the ratio of e (t), integration, differential linearity combination, adopt PD control algolithm that controlled warp let-off object is controlled.
In the present embodiment, PD controls to control and the control mode of integration control for having ratio, controls not change the natural frequency of system relative to P, but increases the damping ratio of system, and the suitable differential parameter that regulates is conducive to the dynamic property of improvement system.
In the present embodiment, PID controls as having the control mode that ratio controls.It is actually that PI and PD both works when regulating.
With PD, P controller is compared, because the type of its system improves PID controller, stability is significantly improved.The zero point that PID controller increase is negative again has the control law of PD, and the dynamic property of system also has greatly improved.
Compared to the prior art, what the present invention produced has the beneficial effects that:
null1、Present configuration is simple、Practical，By arranging an electronic gear 21，And by Servo Control Board 4, it is controlled，Thus in Servo Control Board 4 when main shaft 20 is carried out motor control，Effect by electronic gear 21，Also it is driven from axle 22 thus making the rotation of corresponding speed ratio，Warp run-in so can be kept constant，I.e. the sending under the premise that yarn speed is constant of coiled hair，Gear ratio between main shaft 20 and warp beam 52 changes continuously，To ensure that coiled hair rotating speed promotes gradually when main shaft 20 constant airspeed，Thus being greatly improved Servo Control Board 4 main shaft 20 velocity variations followed response performance，It is effectively reduced the warp let-off tension fluctuation that tricot machine leaves in docking process，Improve warp knit stopping line fault，Realize warp knit and be responsible for various flower pattern，Thus improving the performance of tricot machine.
2, in the present invention, by arranging described DSP 41, it is possible to as each through shaft encoder 53 position feedback control core, it is achieved more complicated control algolithm, reach digitized, intellectuality.
3, in the present invention; by arranging soft start circuit module, fault detect protection module and a SPM; it is possible not only to for overvoltage, overcurrent, the fault detect such as overheated, under-voltage protection, and the impact to all kinds of electronic devices and components of the surge current in start-up course can be reduced.
4, the present embodiment strictly controls to coordinate main shaft 20 to move from axle 22 by specific fuzzy algorithmic approach, is prevented effectively from machine shut-down horizontal stripe and occurs.
5, the present embodiment adopts unique plastic optical fiber high-speed serial bus technology, and transmission stabilization efficiency is high and anti-interference is good.Its data good in anti-interference performance, speed are high, signal stabilization, solve and a difficult problem stable, reliable communication line is provided in severe industrial production environment, realize high-speed transfer industry control message and instruction, it is to avoid the danger being caused communications to be interrupted by electromagnetic interference because using metallic cable circuit.Meanwhile, this communication modes is less costly, be only other communication modes cost 1/10th, thus effectively promoting the price advantage of system.
Above are only the specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, all changes utilizing this design that the present invention carries out unsubstantiality, the behavior invading scope all should be belonged to.
Claims (7)
1. a structure improved multi-speed electronic let-off control system, including tricot machine main body mechanism, it is characterized in that: also include industrial computer, Servo Control Board and a plurality of servo-actuating device for controlling the rotation of tricot machine warp beam, described Servo Control Board includes an ARM microcontroller, one DSP and a data storage, the outfan of described industrial computer is connected to the Enable Pin of described ARM microcontroller and data storage respectively through optical fiber, the outfan of described ARM microcontroller is connected with the Enable Pin of described data storage and DSP respectively.
2. a kind of structure improved multi-speed electronic let-off control system as claimed in claim 1, it is characterized in that: each described servo-actuating device all include a servomotor, a servo-driver being connected with the Enable Pin of this servomotor, a tricot machine warp beam being connected with this servo motor transmission and one for detect servomotor running status through shaft encoder, the Enable Pin of each described servo-driver is connected to the outfan of described DSP simultaneously, each described outfan through shaft encoder be connected to simultaneously described DSP Enable Pin.
3. a kind of structure improved multi-speed electronic let-off control system as claimed in claim 2, it is characterized in that: the Enable Pin of each described servo-driver is connected to the outfan of described DSP by optical fiber, each described outfan through shaft encoder by optical fiber be connected to described DSP Enable Pin.
4. a kind of structure improved multi-speed electronic let-off control system as claimed in claim 1, it is characterized in that: described tricot machine main body mechanism include a main shaft, an electronic gear, one from axle, a spindle motor, one for detecting spindle encoder and a spindle motor control circuit of spindle motor running status, the moment outfan of described spindle motor is in transmission connection with described main shaft and electronic gear respectively, and the moment outfan of described electronic gear is connected from through-drive with described；The Enable Pin of described spindle motor control circuit is connected to an outfan of described Servo Control Board, and the outfan of described spindle motor control circuit is connected to the Enable Pin of described spindle motor, and the outfan of described spindle encoder is connected to described Servo Control Board.
5. a kind of structure improved multi-speed electronic let-off control system as claimed in claim 4, it is characterised in that: the Enable Pin that the outfan of described ARM microcontroller is also respectively connected with in described electronic gear and spindle motor control circuit connects.
6. a kind of structure improved multi-speed electronic let-off control system as claimed in claim 4; it is characterized in that: described spindle motor control circuit includes the soft start circuit module, fault detect protection module and the SPM that are sequentially connected electrically, and the Enable Pin of described spindle motor is connected to the outfan of described SPM.
7. a kind of structure improved multi-speed electronic let-off control system as claimed in claim 1, it is characterised in that: the Enable Pin of described industrial computer is provided with a touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336978.4A CN105755668A (en) | 2016-05-20 | 2016-05-20 | Multi-speed electronic warp let-off system of improved structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610336978.4A CN105755668A (en) | 2016-05-20 | 2016-05-20 | Multi-speed electronic warp let-off system of improved structure |
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| CN105755668A true CN105755668A (en) | 2016-07-13 |
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| CN201610336978.4A Pending CN105755668A (en) | 2016-05-20 | 2016-05-20 | Multi-speed electronic warp let-off system of improved structure |
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Cited By (2)
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| CN107988700A (en) * | 2018-01-05 | 2018-05-04 | 常州市赛嘉机械有限公司 | A kind of interval yarn constant strain electronic warp let-off control method of the irregular amplitude of oscillation |
| CN108268015A (en) * | 2018-01-24 | 2018-07-10 | 西安康控科尼电子科技有限公司 | The control method of diamond wire servo-drive system is electroplated |
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Cited By (2)
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| CN107988700A (en) * | 2018-01-05 | 2018-05-04 | 常州市赛嘉机械有限公司 | A kind of interval yarn constant strain electronic warp let-off control method of the irregular amplitude of oscillation |
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