精轧机换辊的自动化控制系统（Automatic control system for mill roll changing）

1、精轧机换辊的自动化控制系统（Automatic control system for mill roll changing）PDF documents may have a poor browsing experience at the WAP end. It is recommended that you choose TXT, or download the source file to the native view.Article number: 1001-9944 (2007) 2004-0056,04Automatic control system for mill roll ch

2、angingDu xuefei. Wu junjie(China metallurgical engineering technology co., LTD., chongqing 400013)Abstract: discusses the comprehensive based on SIMATIC TDC a warmwalzwerk finishing mill roll changing automation control system. Introduces the roll changing process and control mode, the system hardwa

3、re structure and software structure are discussed, and analyzes the system software. Key words: change roll; Automation; Control of the central map classification number: TP29 document mark: BAutomation Control SystemDU Xue - fei. WU jun-jie (CISDI)Engineering CO., LTD., Chongqing paper fullyOf Fini

4、shMmRoll Changing4 00013, ChinaSystem ofAbstract: ThisDiscusses automation controlFinish millrollchangingThe ina.Steel mill whichisbasedonSIMATIC TDC. It introduces the system hardware and software structures, and analyses the system pmgam.Key words: roll changing; Automation; controlIn the process

5、of hot rolling, the change of the mill roll is oneControl and interlock control and hydraulic control valve, control object include: work roll/support roll balance cylinder, push-pull cylinders, spindle balancing cylinder, all kinds of locking device lock cylinder, ladder pad, side guide, guide plat

6、e, transverse cylinder, cylinder, roll change the car turning, etc.1. 1An important link, usually each production class (8 hours) should be 1. Change roller operation twice. How to optimize the control, simplify operation, reduce the change of roll, and improve the automatic roll rate, which is the

7、face of steel mills and engineersA difficult point. The paper is automated with the mill roll of a hot rolling millTechnical solutionThe control system is an example to analyze and discuss it.The system adopts SIMATIC of SiemensTDCWork roll change roll: turn over 90. Turn the cylinder to turn out th

8、e cooling water _ + switch to the work roll balance modeThe guide plate and the guide plate are moved to the roll position _ + step mat(technology drive contr01) controller, which has a powerful function: multi-processor mode with 64-bit RISC CPU; The sampling interval is short,Uplift of the spindle

9、 hold device hold _ _ + work roll shaft end locking plate and the plate open _ present push-pull cylinders, pull out the old work roll _ transverse test bench Horizontal move to a new roll of aligned _ ladder pad to adjust _ work roll shaft end locking plate and the connection plate of the spindle h

10、old closed _ device to loosen the push pull cylinder into, before the new roll into the frame work roll balance open _ _ track down a push-pull cylinder returns a flip flip 90 cylinder. _ side guide plate and guide plate shiftThe shortest one is 1001 mountain s, especially for dynamic closed-loop co

11、ntrol: multiple communicationsMethods: industrial Ethernet, GDM, MPI and PROFIBUS.1Roll change controlChange roll control mainly refers to the movement logic sequence of the changing roller mechanismDate of collection: 2006-12-22; Revision date: 2007-04, 06Author profile: du xuefei (1977 -), male, m

12、aster, engineer, research direction for industrial automation control; Wu junjie (1968), male, senior engineer, research direction is automation control of industry.figureWan dataTo roll steel bit _ to reduce _ switch to work roll bending mode - to openCooling water _ + rollers end. The new roller i

13、s pulled out from the grinding roller, and the old work roll is pulled through the roller changing electric car. Support roller changers: pull out the old work roller _ to lift the roller changing roller2The system hardwareThe system hardware configuration is shown in figure 1. System framework adop

14、tionUR5123, 21 slot, equipped with the one which has the function of cooling and internal control integrated power PS5213, slot on the template by 64 backplane bus high-speed data exchange.1, 2, 3, 4, H - - t qlnTransverse bench _ ladder cushion adjustment for the change of supporting roller bit buc

15、ket dismantle pipes _ + pull support roller - + sequence lifted from old backup roll, hanging on the new backup roll _ supporting roller for pushing rack _ present pipeline installation _ roll change over. At this point,Continue the work roll change roll.Table 1 change the relative parameters of rol

16、lerTab. 1 name work roll size backup roll size work roll in roller type backup roll roll changing work roll push-pull type cylinder stroke work roll shifting cylinder stroke the Parameters of roll changing ParametersF1 1 F4: medium 750 / dP670x2000 mm F5 1 F6: medium 700 / qb630x2000 mm5678910 of 11

17、12 i314 15 16 17 18 19 20 21U u-u| npourV,8 ln ln 8 8 8The InalnO mountain of UThe Un onThe mountain j UCellar N banquet feast c,)O o cheese! O oIn the In8O the NPlug Zhai O o L mountain U UU ulinoleicSIMA cerumen C TDC, UR5213 / FM02 fig.1 Fig. 1System hardware configuration diagramchartIn the F1 F

18、6:1500 Mian 1370 x1750I/LLNSystem hardware configurationHydraulic pull out, hydraulic horizontal shift, electric car into the grinding roller hydraulic pull out6990mm 1500mm2.1CPU templateThe 1-3 # template is CPU551. It runs fast and has good performanceOpen loop, closed-loop dynamic performance. C

19、PU551 USES 64 - bit RISC technology, frequency is 266 MHZ, the shortest sampling time for 100 anal s, 32 m SDRAM, synchronous Cache 512 k, 256 k SRAM. MC521Moving speed of roller changing roller is 30 100mm/s moving speed 40-80mm/s working roll changing roller motor support rollerYP2225M 1, 8, 22 KW

20、, 740r/m, 380V, 50Hz6000ramAn insert memory card of 2M for storing user programs.Each CPU551 is responsible for the replacement roll control of two racks. Among them1.2 roll changing modeChange roll control mode includes manual, automatic and maintenance mode. normalIn the case, the roller changing

21、roller is carried out in an automatic manner, and the support roller changing roller is carried out manually. (1) all roll-changing operations of manual mode are performed manually. manualThe CPU will also be responsible for the chassis and other TDC racks, TCS, and nowField ET 200 communication. Se

22、t the scan period hole to be 4ms, the death is 32ms, it is 64ms, it is 128ms, the death is 256ms. In actual operation, the load of 1 # CPU is 45%, 2 # and 3 # CPU loadFor 35 percent, the program can be run effectively. If the CPU loadsLarge, during program operation, there is a possibility of load f

23、ailure (wrongUnder the mode, the operator manually controls the on-site equipment, and changes the operation status of the equipment through the feedback of the on-site detecting elements (limit switches, displacement sensors, etc.). At this time, the detection signal location interlocking function,

24、 the operator should be familiar with the interlocking relationship between the equipment or strictly follow the operationManual operation. (2) automatic mode of all roll-changing operation steps is performed automatically. The display screen of the replacement roller OP station.The operator can und

25、erstand the progress of the current roll change operation. The operator can be right on demandThe error code is E. At this point, press the troubleshooting button. NoAffects the operation of the program. 2.2 signal templateThe 7-11 earning template is the signal template SM500 for connection distrib

26、utionType I/O with 16 binary input output and 8 analog input lossIn addition, four incremental coders and four absolute encoders can be connected. The displacement sensor of upper, lower step pad and work roller push cylinder adopts SSI interface to meet the control essenceDegree requirements. 2.3 c

27、ommunication templates 16, 17, 20 and 21 are template for communication. CP50MO has 8M DRAM and two PROFIBUS DP/MPI interfaces.Current steps for manual intervention, or interrupt automatic rollout operation. And can beRestore automatic operation. (3) maintenance modeThe maintenance mode is used for

28、debugging and maintenance purposes, and for the point action. In-situ test signal in this mode, all the location of the lock will no longer work, the operator must judge equipment operation, lest produce mechanical equipment damage or personal injury.Automation and instrumentation 2007 (4)CP5100 can

29、 be connected to fast Ethernet by using TC or UDP.2.4GDM communicationBetween TDC system, GDM communication is adopted and its system hardware is matchedgroupWan dataSee figure 2. CP52M0 is GDM memory module, CP52IO is GDM interface module, CP52A0 is GDM access module.The GDM (global data memory) co

30、mmunication is the TDC systemTo initialize and monitor Profibus DP communications: (5) communication between TDC and Win CC, through MPI to initialize and monitor the MPI communications: (6) communication between TDC and TCS, through TCPIP to initialize and monitor industrial Ethernet communication.

31、 Except for communication within the CPU. The rest of the communication methods use work energy block CTv and CRV to send and receive data. Mode control in charge of changing roller mode control: rolling/changing roller. Manual/automatic/dimensionOne of the outstanding advantages, the transmission r

32、ate is as high as 640Mb/s. throughGDM can achieve up to 44 TDC racks, 836 cpus, and 1. In addition, the synchronization and alarm function can be achieved using GDM, and the refresh time is LMS.UR5213 backplane busI regret to depose! 1 | IUR5213Lead trainer circleProtection. Remote/local, etc. 3.3 d

33、ata processing is responsible for the sending and receiving of roll data, determining whether the roll data is correct, completing data change, and sending new roller data to TCS.Crossbow board always struggleJing yao rongHouse: eyeAt the same time, data analysis is conducted to adjust the cushionin

34、g of the upper and lower stepsUR5213The height of the side guide plate. The equipment controls each device. The corresponding equipment control module is the work roller push cylinder, the working roller lock cylinder, the working roller lock cylinder, etc. For the standardPalm plate always struggle

35、takeThe design of the quasi-chemical control block M_YR2 is developed for different functionsDeep and remoteCP52AO TDCl CP52AO TDC2The solenoid valve and pneumatic valve are controlled in a unified way. M_YR2 is powerful:Deep and remote deviceBrake systemCP52AO TDC5There are three operation modes, a

36、utomatic, manual and maintenance. Including various working conditions, starting conditions, general operating conditions, DIRl operating conditions and DIR2 operating conditions; There are two kinds of running speed, fast and slow; There areFigure 2. Hardware configuration diagram of GDM system via

37、 fiber optic connectionFig. 2 the GDM hardware configuration chart through optical fiber connectionEmergency stop, simulation and limit switch signal processing. Since the launch,The work of M_YR2 is normal and fully meets the valve control requirements. In addition, control of proportional valves a

38、lso requires some functional blocks, such as RGE3The system softwareThe software configuration of this system is: SIMATIC CFC STEP7(slope function generator), INT (integral controller) and FILT (digital filter) 21, etc.3.5OptionV6.0, SIMATICSFCV6.0 and STEP7 aAutomatic roll changing sequence control

39、 with SFC to realize automatic roll changing sequence control. The sequential controlBASIS V5.3. CFC and SFC are both graphical configuration and PLCThe system is simpler and more readable than the system, making it easier to program, adjust, maintain, and redevelop.The system is divided into four p

40、arts: the first is the SFC sequence control flow chart: the second isSFC input refers to the dynamic access of the CFC function blocks in the SFC runtimeTo determine whether the conditions are satisfied to be transferred; Third, SFC output.According to the principle of modular design, system program

41、 is LFE (109ic)Function element.When the SFC runs, the issuing command is dynamically written to the parameters in the CFC function block to control the operation of the device; 4. SFC control procedure: refers to the control of the start, maintenance, termination and stop of SFC, as shown in figure

42、 3.3.6 simulation control is used to write a simulation program, including: external equipment3.1 input/output controlResponsible for the input and output of the data.(1) the communication within the CPU, which is directly connected;Make the rolling production line realize full automatic rolling, no

43、t only improve the labor intensity of the workers, but also improve the output and quality of the products, and achieve great social and economic benefits.2. Conference paper du xuefei, wu junjie, huang kailin precision rolling mill switching control system and optimization 2008The author has been i

44、nvolved in the development of automatic control system for two hot rolling projects, and has a deep understanding of the roll control system. In this paper, the control system of grinding mill for the second project is discussed in this paper, the roll process is introduced, the hardware structure a

45、nd software structure of the system are discussed, and the software program of the system is analyzed. Compared with the roll control system of the first engineer, the optimization of the system was analyzed. The control system is advanced, reliable and reasonable, which can meet the needs of enterp

46、rise modernization production.3. Journal paper guo ye. Research on the strategy of all-continuous rolling mill for continuous rolling mill - baosteel technology 2003 (3)In rolling automation of full continuous rolling mill production management problems in equipment inspection, the replacement cycle

47、, the automation of continuous rolling mill roll change strategy research and discussion. By using the method of probability and statistics, build the mathematical model of the minimum unit expected costs as the goal, and the inspection interval is obtained by computing the conform to the actual pro

48、duction and roll replacement strategy.The conference paper, shen hao 1, 780 mm hot rolling mill roll changing system study 2007This paper introduces the equipment composition and system control of the roller changing system of 780 mm hot rolling mill, and makes qualitative and quantitative analysis

49、on the common failures of this system, and makes the rectification measures.5. Journal paper XU Jie. Research on automatic control system for rolling mills of XU Jie hot rolling mill - automation and instrumentation, 2009, 24 (2)Warmwalzwerk wisco based on 1580 mm strip finishing mill work roll rapi

50、d roll changing system application, mainly analyzes the working principle of roll changing automation system, discusses the control of quick roll change train of thought and the optimization method. Practice shows that operation of the system is stable and reliable, and reducing the roll change time

51、, maximize the efficiency of roll change.6. The conference paper sun xiaoli. Chen hu. Wang yongling cold tandem rolling mill transform roller data management strategy optimization 2007Cold tandem mill transform mathematical model during the development process, to online data involved in calculation

52、 process. In order to guarantee the security, not from the roll data on-line roll directly read data in the table, therefore, created online roll table. At the same time has established a trigger roll data sheet, dedicated to response the roll data update. The key to successful management of a roll

53、to roll change signal processing, to this end, we designed a special touch device, use the trigger mechanism of the database from the Angle of the roll data update a roll changing signals, make the model calculation program can always get the latest online roll data, ensure the correctness of the in

54、let parameters involved in calculation.7. Journal paper qian yanjie, liu chunrong, the research and application of the automatic control system for rapid roll change of the 3500mm mill of zhong xiuju, 2003, 9 (4)Jinan 3500 mm finishing mill based on the principle of advanced domestic, international

55、first-class, automation control system adopts Siemens of Germany technology equipment. Quick roll change system is closely related to the finishing mill by jinan form a complete set,To meet the requirements of communication and control, the system USES a SIEMENSS7300 PLC and SIMOVERT MASTERDIVES inv

56、erter, well meet the requirements of the finishing mill automatic rolling control. 3500 mm thick plate plant in finishing mill roll change since the system put into operation quickly, stable and reliable running, roll change efficiency has improved dramatically, for high and stable yield plate laid

57、a solid foundation.8. Conference paper li feng, li youyuan, zheng tao, zhou zhiming, deng tianyongs cold tandem rolling mill changing roll control 2008Extremely thin cold tandem mill starts wave wave shape is bilateral or unilateral problems, combined with very thin cold tandem mill roll change starts with the characteristics of the steel plate shape control, this article from the use of the preheat roll, strip shape contro