CN105618480A - Control system for rolled aluminum foil thickness difference accuracy - Google Patents
Control system for rolled aluminum foil thickness difference accuracy Download PDFInfo
- Publication number
- CN105618480A CN105618480A CN201410590897.8A CN201410590897A CN105618480A CN 105618480 A CN105618480 A CN 105618480A CN 201410590897 A CN201410590897 A CN 201410590897A CN 105618480 A CN105618480 A CN 105618480A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- module
- control circuit
- loop control
- thickness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
The invention relates to a control system for the rolled aluminum foil thickness difference accuracy. The control system comprises an upper pressing cylinder, an inner loop control circuit, a servo valve and an outer loop control circuit. The upper pressing cylinder is electrically connected with the outer loop control circuit and the servo valve through the inner loop control circuit. A position sensor capable of measuring the displacement amount of the upper pressing cylinder and a pressure sensor capable of measuring the pressure of the upper pressing cylinder are arranged on the upper pressing cylinder. The inner loop control circuit comprises a rolling mill frame control module. The outer loop control circuit comprises a thickness control module, a thickness measuring device, a speed control device, an uncoiling tension control device and a speed measuring device. According to the control system for the rolled aluminum foil thickness difference accuracy, a double-closed-loop control mode is adopted, the pressure and displacement can be controlled at the same time, the situation that the current actual position and pressure of the upper pressing cylinder cannot be recognized intelligently in a single position or when the pressure is unavailable is avoided, and therefore the plate shape can be well controlled while the requirement for the control accuracy is high.
Description
Technical field
The present invention relates to a kind of control system rolling aluminium foil thickness difference precision.
Background technology
Major part cold-rolling mill system is all in the control stage carrying out DDC process with computer settings and microcomputer at present, for there is bigger contradiction between THICKNESS CONTROL mode and tension adjustment, in cold rolling process, the resistance of deformation of aluminium foil is very big, and increase along with the increase of rolling pass, only measuring rolling force deviation can not be very accurate, high cold-rolling mill is required for strip thickness and precision, control accuracy is substantially not much of that, and control accuracy does not reach requirement and often will increase percent defective, increase production cost.
Summary of the invention
The technical problem to be solved in the present invention is: in order to overcome prior art control accuracy low, the deficiency that percent defective is high, it is provided that the control system of the rolling aluminium foil thickness difference precision that a kind of control accuracy is high, percent defective is low.
The technical solution adopted for the present invention to solve the technical problems is: a kind of control system rolling aluminium foil thickness difference precision, including pressing cylinder, interior loop control circuit, servo valve and outer-loop control circuit, the described cylinder that presses is electrically connected with outer-loop control circuit and servo valve respectively by interior loop control circuit, the described cylinder that presses is provided with and can measure the position sensor that presses cylinder displacement and can measure the pressure transducer pressing cylinder pressure, described interior loop circuit includes rolling-mill housing and controls module, the described cylinder that presses is in transmission connection with servo valve, described servo valve, press cylinder, position sensor and pressure transducer all control module with rolling-mill housing and electrically connect, described outer-loop control circuit includes THICKNESS CONTROL module, measurer for thickness, speed control unit, uncoiling tension control apparatus and velocity measuring device, described thickness measure module and measurer for thickness all control module with rolling-mill housing and electrically connect, described uncoiling tension control apparatus, speed control unit, measurer for thickness and velocity measuring device all electrically connect with THICKNESS CONTROL module.
In order to monitoring presses the change in location of cylinder better, described position sensor has four, two of which be arranged on described in press the fore side of cylinder, two other be arranged on described in press the transmission side of cylinder, described position sensor is magnetic scale.
In order to improve the control accuracy of whole system, described rolling-mill housing controls module and includes modular converter, I/O expansion module, PLC and servo amplifier, described modular converter, I/O expansion module and servo amplifier are sequentially connected electrically, described PLC and I/O expansion module electrically connects, described pressure transducer and position sensor all electrically connect with modular converter, and described servo amplifier electrically connects with servo valve.
In order to transmit better and feedback signal, described PLC, by being electrically connected by the voltage signal of 0-10V between I/O expansion module and servo amplifier, is electrically connected by the current pulse signal of 0-20MA between described servo amplifier and servo valve.
The invention has the beneficial effects as follows, the control system of this rolling aluminium foil thickness difference precision adopts double-closed-loop control, achieve the control simultaneously to pressure and displacement, avoid when single position or pressure lack and Intelligent Recognition cannot currently press physical location and the pressure of cylinder, thus also being able to when control accuracy reaches high request realize template well controlling.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the circuit theory diagrams that the present invention rolls the control system of aluminium foil thickness difference precision;
Fig. 2 is that the present invention rolls the position sensor of the control system of aluminium foil thickness difference precision and the circuit connection diagram of modular converter;
Fig. 3 is that the present invention rolls the modular converter of the control system of aluminium foil thickness difference precision and the circuit connection diagram of I/O expansion module;
Fig. 4 is that the present invention rolls the I/O expansion module of the control system of aluminium foil thickness difference precision and the circuit connection diagram of servo amplifier;
Fig. 5 is that the present invention rolls the configuration power module of the control system of aluminium foil thickness difference precision and the circuit connection diagram of PLC machine frame;
Fig. 6 is that the present invention rolls the I/O expansion module of the control system of aluminium foil thickness difference precision and the circuit connection diagram of PLC;
In figure: 1. press cylinder, loop control circuit in 2., 3. outer-loop control circuit, 4. servo valve, 5. position sensor transducer, 21. rolling-mill housing control module, 31. THICKNESS CONTROL module, 32. speed measurement module, 33. uncoiling tension control apparatus, 34. speed control unit, 35. measurer for thickness, 21-1 modular converter, 21-2.I/O expansion module, 21-3. servo amplifier, 21-4.PLC.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation. These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
As Figure 1-Figure 4, a kind of control system rolling aluminium foil thickness difference precision, including pressing cylinder 1, interior loop control circuit 2, servo valve 4 and outer-loop control circuit 3, the described cylinder 1 that presses is electrically connected with outer-loop control circuit 3 and servo valve 4 respectively by interior loop control circuit 2, the described cylinder 1 that presses is provided with and can measure the position sensor 5 pressing cylinder 1 displacement and can measure the pressure transducer pressing cylinder pressure, described interior loop circuit 2 includes rolling-mill housing and controls module 21, the described cylinder 1 that presses is in transmission connection with servo valve 4, described servo valve 4, press cylinder 1, position sensor 5 and pressure transducer all control module 21 with rolling-mill housing and electrically connect, described outer-loop control circuit 3 includes THICKNESS CONTROL module 31, measurer for thickness 35, speed control unit 34, uncoiling tension control apparatus 33 and velocity measuring device 32, described thickness measure module 31 and measurer for thickness 35 all control module 21 with rolling-mill housing and electrically connect, described uncoiling tension control apparatus 33, speed control unit 34, measurer for thickness 35 and velocity measuring device 32 all electrically connect with THICKNESS CONTROL module 31.
In order to monitoring presses the change in location of cylinder 1 better, described position sensor 5 has four, two of which be arranged on described in press the fore side of cylinder 1, two other be arranged on described in press the transmission side of cylinder 1, institute
State position sensor 5 for magnetic scale.
In order to improve the control accuracy of whole system, described rolling-mill housing controls module 21 and includes modular converter 21-1, I/O expansion module 21-2, PLC21-4 and servo amplifier 21-3, described modular converter 21-1, I/O expansion module 21-2 and servo amplifier 21-3 is sequentially connected electrically, described PLC21-4 and I/O expansion module electrically connects, described pressure transducer and position sensor 5 all electrically connect with modular converter 21-1, and described servo amplifier 21-3 electrically connects with servo valve 4.
In order to transmit better and feedback signal, described PLC21-4 is electrically connected by the voltage signal of 0-10V by between I/O expansion module 21-2 and servo amplifier 21-3, is electrically connected by the current pulse signal of 0-20MA between described servo amplifier 21-3 and servo valve 4.
PLC21-4 is powered by exterior arrangement power supply by PLC machine frame.
Servo valve 4 is in transmission connection with pressing cylinder 1 by hydraulic oil, controls to press rising or falling of cylinder 1 by controlling the flow of hydraulic oil, thus reaching to control the purpose of template.
The CPU of described PLC21-4 adopts 64 bit processors, performing bit manipulation instruction response time is 0.06 microsecond, the response time performing floating-point operation instruction is 0.18 microsecond, and the application module in PLC21-4 adopts 64,128MHZ floating point processor equally, and the scan period is 100 microseconds.
This system adopts interior loop control circuit 2 and outer-loop control circuit 3 to be controlled, i.e. double-closed-loop control method, the CPU of the PLC21-4 displacement signal that can outside be fed back and pressure signal is made to carry out high frequency, efficiently identify, and vertically carry out intelligent comparison computing needed for setting with operator, provide and feed back to servo valve 4, thus changing the position pressing cylinder 1 effectively and quickly.
The operation principle of this system is: when start, operator is according to process requirements, set required template, expect the actual pressure value needed for thick and corresponding the first two parameter, position sensor 5 detects the physical location pressing cylinder 1 automatically, position sensor 5 is transferred to I/O expansion module 21-2 after displacement signal being converted the position signalling recorded to analog pulse signal by modular converter 21-1, I/O expansion module 21-2 transfers data to PLC21-4 again, the CPU of PLC21-4 automatically calculates current location and sets the difference of the thick required physical location of material, the difference of the actual pressure value that pressure sensor feeds back is come and the force value set before, provide the voltage feedback signal of corresponding 0-10V to servo amplifier 21-3, after this voltage signal is transformed into the current pulse signal of 0-20MA by servo amplifier 21-3, this current signal is transferred to servo valve 4, servo valve 4 presses cylinder 1 according to this signal by the mode transmission of hydraulic pressure and rises or decline, press cylinder 1 rise then pressure increase, material thickness reduce, press cylinder 1 and decline, then pressure reduce, material thickness increase, synchronously, moreover it is possible to template is adjusted.
Compared with prior art, the control system of this rolling aluminium foil thickness difference precision adopts double-closed-loop control, achieve the control simultaneously to pressure and displacement, avoid when single position or pressure lack and Intelligent Recognition cannot currently press physical location and the pressure of cylinder 1, thus also being able to when control accuracy reaches high request realize template well controlling.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this invention technological thought, can carry out various change and amendment completely. The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (4)
1. the control system rolling aluminium foil thickness difference precision, it is characterized in that, including pressing cylinder (1), interior loop control circuit (2), servo valve (4) and outer-loop control circuit (3), the described cylinder (1) that presses is electrically connected with outer-loop control circuit (3) and servo valve (4) respectively by interior loop control circuit (2), the described cylinder (1) that presses is provided with and can measure the position sensor (5) pressing cylinder (1) displacement and can measure the pressure transducer pressing cylinder (1) pressure, described interior loop circuit (2) includes rolling-mill housing and controls module (21), the described cylinder (1) that presses is in transmission connection with servo valve (4), described servo valve (4), press cylinder (1), position sensor (5) and pressure transducer all control module (21) with rolling-mill housing and electrically connect, described outer-loop control circuit (3) includes THICKNESS CONTROL module (31), measurer for thickness (35), speed control unit (34), uncoiling tension control apparatus (33) and velocity measuring device (32), described thickness measure module (31) and measurer for thickness (35) all control module (21) with rolling-mill housing and electrically connect, described uncoiling tension control apparatus (33), speed control unit (34), measurer for thickness (35) and velocity measuring device (32) all electrically connect with THICKNESS CONTROL module (31).
2. the control system rolling aluminium foil thickness difference precision as claimed in claim 1, it is characterized in that, described position sensor (5) has four, two of which presses the fore side of cylinder (1) described in being arranged on, two other presses the transmission side of cylinder (1) described in being arranged on, and described position sensor (5) is magnetic scale.
3. the control system rolling aluminium foil thickness difference precision as claimed in claim 1, it is characterized in that, described rolling-mill housing controls module (21) and includes modular converter (21-1), I/O expansion module (21-2), and servo amplifier (21-3) PLC(21-4), described modular converter (21-1), I/O expansion module (21-2) and servo amplifier (21-3) are sequentially connected electrically, described PLC(21-4) electrically connect with I/O expansion module, described pressure transducer and position sensor (5) all electrically connect with modular converter (21-1), described servo amplifier (21-3) electrically connects with servo valve (4).
4. the control system rolling aluminium foil thickness difference precision as claimed in claim 3, it is characterized in that, described PLC, by being electrically connected by the voltage signal of 0-10V between I/O expansion module (21-2) with servo amplifier (21-3), is electrically connected by the current pulse signal of 0-20MA between described servo amplifier (21-3) with servo valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590897.8A CN105618480B (en) | 2014-10-29 | 2014-10-29 | Roll the control system of aluminium foil thickness difference precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410590897.8A CN105618480B (en) | 2014-10-29 | 2014-10-29 | Roll the control system of aluminium foil thickness difference precision |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105618480A true CN105618480A (en) | 2016-06-01 |
| CN105618480B CN105618480B (en) | 2019-01-01 |
Family
ID=56034044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410590897.8A Active CN105618480B (en) | 2014-10-29 | 2014-10-29 | Roll the control system of aluminium foil thickness difference precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105618480B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185962A (en) * | 2017-06-12 | 2017-09-22 | 王利宣 | The calender device and its calendering process of a kind of non-ferrous metal |
| CN108772424A (en) * | 2018-07-17 | 2018-11-09 | 桂林电子科技大学 | The offline dynamic detection automatic control system of finished product aluminium foil plate shape and its application method |
| CN110340154A (en) * | 2019-07-22 | 2019-10-18 | 镇江龙源铝业有限公司 | A kind of small-sized multi-frame tandem mills constant-tension control method |
| CN112903009A (en) * | 2021-01-15 | 2021-06-04 | 广东嘉元科技股份有限公司 | Online monitoring system of crude foil machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1962100A (en) * | 2006-11-17 | 2007-05-16 | 燕山大学 | Method for controlling thickness of cold rolled steel strip capable of conducting dynamic compensation of thermal expansion of rollers |
| JP3974084B2 (en) * | 2003-06-26 | 2007-09-12 | 株式会社神戸製鋼所 | Thickness control method and thickness control apparatus for rolling mill |
| CN201464921U (en) * | 2009-04-28 | 2010-05-12 | 河南鸽瑞复合材料有限公司 | Hydraulic automatic gauge control system of four-roll reversible cold-belt rolling mill |
| JP5170240B2 (en) * | 2008-05-07 | 2013-03-27 | 東芝三菱電機産業システム株式会社 | Thickness control device for rolling mill |
| CN103775437A (en) * | 2014-02-28 | 2014-05-07 | 南京理工大学 | Hydraulic cylinder test bench load simulation device and control method thereof |
-
2014
- 2014-10-29 CN CN201410590897.8A patent/CN105618480B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3974084B2 (en) * | 2003-06-26 | 2007-09-12 | 株式会社神戸製鋼所 | Thickness control method and thickness control apparatus for rolling mill |
| CN1962100A (en) * | 2006-11-17 | 2007-05-16 | 燕山大学 | Method for controlling thickness of cold rolled steel strip capable of conducting dynamic compensation of thermal expansion of rollers |
| JP5170240B2 (en) * | 2008-05-07 | 2013-03-27 | 東芝三菱電機産業システム株式会社 | Thickness control device for rolling mill |
| CN201464921U (en) * | 2009-04-28 | 2010-05-12 | 河南鸽瑞复合材料有限公司 | Hydraulic automatic gauge control system of four-roll reversible cold-belt rolling mill |
| CN103775437A (en) * | 2014-02-28 | 2014-05-07 | 南京理工大学 | Hydraulic cylinder test bench load simulation device and control method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 张燕红: "浅析现代化铝箔轧机的自动控制系统", 《有色金属加工》 * |
| 王立萍等: "《冶金设备及自动化》", 30 June 2011, 冶金工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185962A (en) * | 2017-06-12 | 2017-09-22 | 王利宣 | The calender device and its calendering process of a kind of non-ferrous metal |
| CN107185962B (en) * | 2017-06-12 | 2019-09-10 | 陈治政 | A kind of calendering device and its calendering process of non-ferrous metal |
| CN108772424A (en) * | 2018-07-17 | 2018-11-09 | 桂林电子科技大学 | The offline dynamic detection automatic control system of finished product aluminium foil plate shape and its application method |
| CN110340154A (en) * | 2019-07-22 | 2019-10-18 | 镇江龙源铝业有限公司 | A kind of small-sized multi-frame tandem mills constant-tension control method |
| CN110340154B (en) * | 2019-07-22 | 2020-10-30 | 镇江龙源铝业有限公司 | Constant tension control method for small multi-stand cold continuous rolling unit |
| CN112903009A (en) * | 2021-01-15 | 2021-06-04 | 广东嘉元科技股份有限公司 | Online monitoring system of crude foil machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105618480B (en) | 2019-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105618480A (en) | Control system for rolled aluminum foil thickness difference accuracy | |
| CN113983877B (en) | Pressing system and pressing method for initiating explosive devices | |
| CN201165063Y (en) | Punching machine slipper block bottom dead center automatic regulating apparatus | |
| CN207937293U (en) | A kind of hardness testing device for mold manufacturing | |
| JPS61232100A (en) | Method and apparatus for setting press condition for stable forming | |
| CN103317116A (en) | Automatic adjusting system and control method based on die-casting machine clamping force | |
| CN202278046U (en) | Displacement control device for lifting roller in plate rolling machine | |
| CN202174208U (en) | Hydraulic circuit of rolling and riveting system | |
| CN105235270A (en) | Control system for friction press | |
| CN108043884B (en) | Main and auxiliary double closed loop deviation rectifying control system based on PID | |
| CN203298728U (en) | Hydraulic cylinder displacement sensor precision calibrating device | |
| EP3199263B1 (en) | Press-forming system and press-forming method | |
| CN211161203U (en) | Thickness control device for aluminum plate finish rolling | |
| CN110667170A (en) | Intelligent eccentric torque detection system and method of servo press | |
| CN103056333A (en) | Die casting machine clamping force online adjusting device and adjusting algorithm | |
| CN103056334B (en) | Device and method for adjusting mould clamping force of die casting machine on basis of servo control | |
| CN206824489U (en) | A kind of mold and punching head fixed component | |
| US10166588B2 (en) | Apparatus for forming a steel workpiece | |
| CN206838848U (en) | A kind of digital control mechanical pressure machine | |
| CN114558964A (en) | System and method for controlling axial conical roller position of radial-axial ring rolling mill | |
| WO2021227403A1 (en) | Equal channel angular pressing device and equal channel angular pressing temperature control apparatus thereof | |
| CN206188069U (en) | Convenient accurate plane blanking machine | |
| CN206550326U (en) | Air pressure monitor pressure chamber is adjustable die casting | |
| CN206936929U (en) | The loading and unloading manipulator that a kind of numerical control device uses | |
| CN205818452U (en) | A kind of ultra-sonic welded auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |