CN202502398U - Synchronous control system for draw machines of chemical fiber industry - Google Patents
Synchronous control system for draw machines of chemical fiber industry Download PDFInfo
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- CN202502398U CN202502398U CN2012201132057U CN201220113205U CN202502398U CN 202502398 U CN202502398 U CN 202502398U CN 2012201132057 U CN2012201132057 U CN 2012201132057U CN 201220113205 U CN201220113205 U CN 201220113205U CN 202502398 U CN202502398 U CN 202502398U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model relates to a draw machine of a chemical fiber industry, more particularly to a synchronous control system for draw machines of a chemical fiber industry. The synchronous control system comprises a power supply unit, a communication unit, a PLC unit, a plurality of transducers and a human-computer interface operation unit. The power supply unit supplies power for the communication unit, the PLC unit, the plurality of transducers and the human-computer interface operation unit; the communication unit is connected with the PLC unit, the plurality of transducers and the human-computer interface operation unit by Profibus DP so as to carry out communication; the PLC, which is compact one having a fast computing speed and a Profibus DP communication interface, receives an original production line connection signal to obtain an equipment state; the employed transducers have advantages of rapid response, high output frequency resolution ratio, and good low frequency property and has a direct current bus sharing function, wherein operation among the plurality of transducers is realized by a direct current bus sharing way; each of the transducers corresponds to a synchronous motor and operation of the synchronous motors is realized by a direct current bus sharing way. According to the utility model, the synchronous control system can be applied to synchronous control of draw machines.
Description
Technical field
The utility model relates to the drafting machine of chemical fibre industry, is specifically related to the synchro control of chemical fibre industry drafting machine.
Background technology
Chemical fibre production is that long flow process serialization is produced, and requires generally that non-fault turns round more than the 8000h continuously in 1 year, and promptly the chemical fiber machinery maintainability requires to be higher than general textile machine equipment.Often use drafting machine in the chemical fiber machinery; For example; Dacron short silk drawing-off combination machine is a kind of chemical fibre combine of accomplishing the multiple-unit transmission of terylene man-made fiber drawing-off cans, and the chemical fibre tow is through first drafting machine, second drafting machine, the 3rd drafting machine, the last moulding of crimping machine, and the travelling speed between each unit machine keeps certain ratio; Thereby accomplishing the man-made fiber drawing-off is curled into; Wherein the 3rd drafting machine, crimping machine driving motor are in electronic duty, and first drafting machine, the second drafting machine driving motor are in the generating duty, also promptly control first drafting machine, the second drafting machine driving motor makes it accomplish four quadrant running.
The multiple electric motors of existing drafting machine generally is to be driven by PM engineering type frequency converter, and the principal feature of the type frequency converter is that its rectification unit adopts inversion unit, and the shared cover rectification unit of many inversion units; Because the equipment of the type no longer satisfies the demand of chemical fibre production line and is eliminated gradually at present; So there has not been corresponding parts replacement at present, like this, if production line has equipment to go wrong; Then cause shutting down of whole production line probably, and then have the risk that stops production at any time; In addition, maintenance and maintenance are also very difficult.
The utility model content
The utility model technical matters to be solved is; A kind of synchronous control system that is applied to the drafting machine of chemical fibre industry is provided; On the basis that keeps using at original production line; Existing drafting machine by PM engineering type frequency converter driving multiple electric motors is transformed, and then reduced the risk that stops production at any time, make maintenance, maintenance and replacing on the production line become easy.
In order to solve the problems of the technologies described above; The synchronous control system of a kind of chemical fibre industry drafting machine of the utility model; Comprise power supply unit, communication unit, PLC unit, a plurality of frequency converter and man-machine interface operating unit; Said power supply unit is communication unit, PLC unit, a plurality of frequency converter and the power supply of man-machine interface operating unit, and said communication unit is connected to carry out communication with PLC unit, a plurality of frequency converter and man-machine interface operating unit through Profibus DP; Said PLC unit is fast operation, has the compact PLC of Profibus DP communication interface that said PLC unit receives the original production line and connects signal to obtain equipment state; Said frequency converter adopt have quick response, output frequency resolution rate high and low frequency characteristic is good, the frequency converter that possesses the dc bus sharing functionality, between a plurality of frequency converters through the operation of dc bus sharing mode; Each frequency converter correspondence is provided with a synchronous motor, moves through the dc bus sharing mode between the synchronous motor.
Further; Connect signal to obtain equipment state in order to receive the original production line; Said PLC selects the unit SIEMENS S7 313C-2DP compact PLC for use; This PLC word operation 0.5us instruction time, floating-point adder operational order execution time 15us, built-in MPI and Profibus DP communication interface.
Further; For the speed ratio of a plurality of synchronous motors of guaranteeing connecting system synchronous; Require frequency converter have quick response, output frequency resolution rate high and low frequency characteristic good, possess dc bus and function such as share, it is Danfoss FC300 Series Frequency Converter that the utility model adopts model.Danfoss FC300 Series Frequency Converter is as in the market high-end product, have system response time fast, output frequency resolution rate is high, provide perfect dc bus to share solution, provide good characteristic such as plurality of optional field bus communication interface.
Further; For the initialization system technological parameter with implement the supervisory control system running state, and system is carried out safety management, said man-machine interface operating unit adopts touch-screen; This touch-screen has Profibus DP communication interface; Can carry out communication through Profibus DP and communication unit, PLC unit, a plurality of frequency converter and man-machine interface operating unit, the utility model adopts SIEMENS TP170B touch-screen, can certainly use the touch-screen of other models of similar function.
Further; In order to guarantee to make under the situation of frequency converter major loop power down in system blackout, failure and other reasons; Still can keep watch on and the system failure is carried out record the various states of frequency converter; Said power supply unit adopts the mode of stabilized voltage supply and the common power supply of external ups power, and this external ups power is mainly supplied power to frequency converter.
The utility model adopts said structure, has the following advantages:
1. to realize synchronous motor speed ratio high-precise synchronization; Except requiring frequency converter response soon; The transmission speed that also requires to offer the given frequency of frequency converter is also wanted at a high speed; The utility model adopts Profibus DP that communication unit, PLC unit, a plurality of frequency converter and man-machine interface operating unit are coupled together to carry out communication, has guaranteed that the data of PLC unit reliably, at a high speed, accurately transfer to frequency converter; This kind controlled each motor through the field bus communication mode, realizes that two sections speed operations and speed ratio are synchronous;
2. the utility model has increased the synchronous control system of said structure on original production line; Native system is connected with the system of original production line; Said PLC unit receives the original production line and connects signal to obtain equipment state, the for example startup of original system and emergent stop signal etc., and then realize control to frequency converter through being programmed in the PLC unit; Give up and originally drive the mode of the drafting machine of multiple electric motors, and then reduce the risk that stops production at any time by PM engineering type frequency converter;
3. the utility model adopts Danfoss FC300 Series Frequency Converter, allows to install side by side between a plurality of frequency converters, has saved installing space;
4. move through the dc bus sharing mode between a plurality of frequency converters of the utility model; And move through the dc bus sharing mode between the synchronous motor; The mode that this employing dc bus is shared is distributed load, realizes energy sharing, the anti-motional electromotive force that produces during the resolution system operation; The assurance system normally moves, and has practiced thrift the energy simultaneously to a certain extent;
5. what the utility model adopted all is existing advanced equipment, makes maintenance, maintenance and replacing on the production line become easy.
Description of drawings
Fig. 1 is the system architecture diagram of the utility model.
Fig. 2 is 9 motor speed ratio synchro control synoptic diagram among the embodiment of the utility model.
Embodiment
Combine accompanying drawing and embodiment that the utility model is further specified at present.
To the deficiency in the background technology; As shown in Figure 1; The synchronous control system of a kind of chemical fibre industry drafting machine of the utility model; Comprise power supply unit 1, communication unit 2, PLC unit 3, a plurality of frequency converter 4 and man-machine interface operating unit 5; Said power supply unit 1 is communication unit 2, PLC unit 3, a plurality of frequency converter 4 and 5 power supplies of man-machine interface operating unit, and said communication unit 2 is connected to carry out communication with PLC unit 3, a plurality of frequency converter 4 and man-machine interface operating unit 5 through Profibus DP; Said PLC unit 3 is fast operations, has the compact PLC of Profibus DP communication interface that said PLC unit 3 receives the original production line and connects signal to obtain equipment state; Said frequency converter 4 adopt have quick response, output frequency resolution rate high and low frequency characteristic is good, the frequency converter 4 that possesses the dc bus sharing functionality, between a plurality of frequency converters 4 through the operation of dc bus sharing mode; Each frequency converter 4 correspondence is provided with a synchronous motor 6, moves through the dc bus sharing mode between the synchronous motor 6.
Connect signal to obtain equipment state in order to receive the original production line; Said PLC unit 3 is selected SIEMENS S7 313C-2DP compact PLC for use; This PLC word operation 0.5us instruction time, floating-point adder operational order execution time 15us, built-in MPI and Profibus DP communication interface.Certainly, said PLC unit 3 also can adopt the compact PLC of other models that can satisfy the demands.
For the speed ratio of a plurality of synchronous motors 6 of guaranteeing connecting system synchronous; Require frequency converter 4 have quick response, output frequency resolution rate high and low frequency characteristic good, possess dc bus and function such as share, it is Danfoss FC300 Series Frequency Converter that the utility model adopts model.Danfoss FC300 Series Frequency Converter is as in the market high-end product, have system response time fast, output frequency resolution rate is high, provide perfect dc bus to share solution, provide good characteristic such as plurality of optional field bus communication interface.
For initialization system technological parameter and enforcement supervisory control system running state; And system is carried out safety management; Said man-machine interface operating unit 5 adopts touch-screen, and this touch-screen has Profibus DP communication interface, can carry out communication through Profibus DP and communication unit 2, PLC unit 3, a plurality of frequency converter 4 and man-machine interface operating unit 5; The utility model adopts SIEMENS TP170B touch-screen, can certainly use the touch-screen of other models of similar function.
In order to guarantee to make under the situation of frequency converter 4 major loop power down in system blackout, failure and other reasons; Still can keep watch on and the system failure is carried out record frequency converter 4 various states; Said power supply unit 1 adopts the mode of stabilized voltage supply and the common power supply of external ups power; Adopt stabilized voltage supply to supply power under the normal condition, under powering-off state, adopt external ups power to supply power, this external ups power is mainly supplied power to frequency converter 4.
Be the concrete application that example is explained said system with the drafting machine of controlling 9 motors below.Native system is given up and is originally driven the mode of the drafting machine of multiple electric motors by PM engineering type frequency converter, uses Danfoss FC300 Series Frequency Converter, and corresponding 9 motors then are provided with 9 frequency converters.Native system is connected with the system of original production line; Said PLC unit 3 receives the original production line and connects signal (the for example startup of original system and emergent stop signal) to obtain equipment state; Part signal in the native system is fed back to original system; Calculate and control of conversion device 4, realize the synchronous operation of two sections speed operations and 9 motors, and then realize control frequency converter 4 through being programmed in PLC unit 3.In this process, controlling the speed ratio of 9 motors in the whole service process is technological emphasis synchronously.According to industrial analysis, the whole service process divide low speed, at a high speed, three process sections of acceleration and deceleration, 9 motors speed synchronization relation in the whole service process is as shown in Figure 2, the speed ratio between each motor is changeless in certain raw-material production run.Among Fig. 2, low speed is the T1 time period, and travelling speed is lower, is convenient to operating personnel to system's loading (hanging silk); Be shown in the T3 time period at a high speed, this speed is that system accomplishes the normal running speed after loading; T0 and T2 time period are the acceleration and deceleration process; Can be found out by Fig. 2, realize that T0, the speed ratio of T2 time period are that system realizes synchronous key synchronously, also be the emphasis of the system reform.In the native system programmed in PLC unit 3; T0, T2 time period are resolved into N utmost point short time fragment △ T; Through data such as virtual spindle speed, speed ratio relation, rate curve relations, in PLC unit 3, form a mathematical model, calculate each frequency converter 4 in pairing running frequency of △ T time period Mo; This running frequency is to guarantee the synchronous pairing frequency converter running frequency of each motor speed ratio, and adjusts each frequency conversion in real time and run on respectively on the pairing separately frequency.Above-mentioned control mode is applied in the whole service of system, thereby realizes the synchronous control of system's speed ratio.Because 9 motors are in operation and have certain speed ratio; Causing always has one or more motor to be in regenerative power generation state; In order to eliminate the shutdown phenomenon when dragging regenerative electric power, 9 frequency converters of native system adopt the operation of dc bus sharing mode, and the energy of regenerative electric power is stored by dc bus.Shutdown phenomenon but also energy savings to a certain extent like this, had not only been overcome.Other 9 frequency converters adopt power supply unit 1 external DC24V ups power to supply power; Make under the situation of frequency converter major loop outage in system blackout, failure and other reasons like this; Can also keep watch on and system failure record the various states of frequency converter; For the maintainer provides very important reference data in the middle of fault handling, made things convenient for maintenance and improved maintenance speed.
In the said process, the exchanges data with the PLC of original production line is responsible in main control and the service data collections of accomplishing 9 frequency converters in PLC unit 3 simultaneously.PLC unit 3 receives the system control signal of original production line PLC; The start and stop of 9 frequency converters of control; And calculate the pairing frequency of each frequency converter according to the speed ratio of 9 motors and the speed of virtual main shaft; And the current running frequency of each frequency converter of Profibus DP field bus communication mode real time modifying through at a high speed, make 9 motors that preset speed ratio synchronous operations are installed.Man-machine interface operating unit 5 is through its DP communication port process Profibus DP fieldbus networks and PLC unit 3 swap datas; The user can carry out various operations at man-machine interface operating unit 5, for example real time monitoring, check the detailed service data of each roller, setup parameter, system management, check real-time curve, information inquiry and fault handling, check alarm logging or the like.
In experiment, the system of the utility model is under rated speed, and 24 hours static velocity precision reaches 1 ‰ Hz, and synchronization accuracy reaches 1 ‰ Hz,, dynamic speed changes≤0.05%, and working stability, reliable, precision is high, its performance is far superior to original system.Thereby because adopting dc bus to share, system distribute load to realize energy sharing simultaneously; And adopt field bus communication mode (Profibus DP) thereby the quickening data processing speed; And can pass through net connection or Communication processor, be connected to EPA.
Although specifically show and introduced the utility model in conjunction with preferred embodiment; But the those skilled in the art should be understood that; In the spirit and scope of the utility model that does not break away from appended claims and limited; Can make various variations to the utility model in form with on the details, be the protection domain of the utility model.
Claims (6)
1. the synchronous control system of a chemical fibre industry drafting machine; It is characterized in that: comprise power supply unit, communication unit, PLC unit, a plurality of frequency converter and man-machine interface operating unit; Said power supply unit is communication unit, PLC unit, a plurality of frequency converter and the power supply of man-machine interface operating unit, and said communication unit is connected to carry out communication with PLC unit, a plurality of frequency converter and man-machine interface operating unit through Profibus DP; Said PLC unit is fast operation, has the compact PLC of Profibus DP communication interface that said PLC unit receives the original production line and connects signal to obtain equipment state; Said frequency converter adopt have quick response, output frequency resolution rate high and low frequency characteristic is good, the frequency converter that possesses the dc bus sharing functionality, between a plurality of frequency converters through the operation of dc bus sharing mode; Each frequency converter correspondence is provided with a synchronous motor, moves through the dc bus sharing mode between the synchronous motor.
2. the synchronous control system of chemical fibre industry drafting machine according to claim 1 is characterized in that: said PLC unit is the compact PLC of SIEMENS S7 313C-2DP model.
3. the synchronous control system of chemical fibre industry drafting machine according to claim 1 is characterized in that: said frequency converter is that the employing model is a Danfoss FC300 Series Frequency Converter.
4. the synchronous control system of chemical fibre industry drafting machine according to claim 1; It is characterized in that: said man-machine interface operating unit adopts touch-screen; This touch-screen has Profibus DP communication interface, carries out communication through Profibus DP and communication unit, PLC unit, a plurality of frequency converter and man-machine interface operating unit.
5. the synchronous control system of chemical fibre industry drafting machine according to claim 4 is characterized in that: said man-machine interface operating unit adopts SIEMENS TP170B touch-screen.
6. according to the synchronous control system of the described chemical fibre industry drafting machine of above-mentioned arbitrary claim, it is characterized in that: said power supply unit comprises stabilized voltage supply and external ups power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201132057U CN202502398U (en) | 2012-03-23 | 2012-03-23 | Synchronous control system for draw machines of chemical fiber industry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201132057U CN202502398U (en) | 2012-03-23 | 2012-03-23 | Synchronous control system for draw machines of chemical fiber industry |
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| CN202502398U true CN202502398U (en) | 2012-10-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201132057U Expired - Fee Related CN202502398U (en) | 2012-03-23 | 2012-03-23 | Synchronous control system for draw machines of chemical fiber industry |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499404A (en) * | 2016-12-20 | 2017-03-15 | 北方重工集团有限公司 | A kind of compound shield cutter plate driver frequency-converting control device |
| CN107942916A (en) * | 2017-12-22 | 2018-04-20 | 大连佳林设备制造有限公司 | Inverter communication control system |
| CN108388174A (en) * | 2018-02-12 | 2018-08-10 | 广东新会美达锦纶股份有限公司 | A kind of drawing-off roller controller of spinning |
-
2012
- 2012-03-23 CN CN2012201132057U patent/CN202502398U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499404A (en) * | 2016-12-20 | 2017-03-15 | 北方重工集团有限公司 | A kind of compound shield cutter plate driver frequency-converting control device |
| CN107942916A (en) * | 2017-12-22 | 2018-04-20 | 大连佳林设备制造有限公司 | Inverter communication control system |
| CN108388174A (en) * | 2018-02-12 | 2018-08-10 | 广东新会美达锦纶股份有限公司 | A kind of drawing-off roller controller of spinning |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20160323 |