CN104889174A - Control method for doubling of cold detection of hot continuous rolling reeling quick chain - Google Patents
Control method for doubling of cold detection of hot continuous rolling reeling quick chain Download PDFInfo
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- CN104889174A CN104889174A CN201510186852.9A CN201510186852A CN104889174A CN 104889174 A CN104889174 A CN 104889174A CN 201510186852 A CN201510186852 A CN 201510186852A CN 104889174 A CN104889174 A CN 104889174A
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- cold
- inspection
- quick chain
- signal
- cold inspection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
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Abstract
A control method for doubling of cold detection of a hot continuous rolling reeling quick chain can be applied to control of hot continuous rolled strip reeling a quick chain. The control method is characterized in that two sets of correlation type cold metal detectors are arranged on two sides of the quick chain close to a walking beam; and a correlation source of the quick chain detectors is cut off when a strip roll passes, so logical control for quick chain automatic operation can be achieved when the stripe roll is sensed by the cold detectors. The two cold detectors can be used alternatively and selectively used based on fault conditions of the cold detector via an image; the selection can be automatically controlled by a procedure; potential serious equipment damages caused by cold detector faults or error detections can be eliminated; equipment maintenance cost can be reduced; fault frequency can be lowered and production efficiency can be improved; and great benefits can be achieved.
Description
Technical field
The invention belongs to the quick chain that metallurgical industry hot-continuous-rolling strip steel rolling line batches automatically to control.Be useful in hot-strip and batch use in the control of quick chain.
Background technology
Hot continuous rolling transport coordinates horizontal fortune to roll up by quick chain and step rate.Because site space is limited; quick chain and step rate junction are without reliable protective device; so cold inspection becomes the visual plant realizing logic control; the reliability of its signal is particularly important; only have cold inspection signal accurate; could ensure that coil of strip transmits smoothly, do not occur coil of strip tumble or drop to the hole of quick chain and step rate junction under and smash plant equipment and affect and produce.How to guarantee that cold inspection signal is reliable effectively and not affect normal production be to greatest extent the target that we work, and dual control method to be it crucial.
Summary of the invention
The object of the invention is the reliability in order to cold prosecution effectively can be improved, reduce fault time and reduce maintenance of equipment expense, reduce operative employee and manually intervene quick chain, the step rate operation frequency, enhance productivity.
Technical solution of the present invention: a kind of hot continuous rolling batches the control method of the cold inspection dual of quick chain, a set of correlation type cold metal detector is set up in the both sides of existing quick chain, step rate junction, for subsequent use each other with existing correlation type cold metal detector, realize cold inspection dual, efficiently solve the stop production to overhaul caused because cold inspection is broken down.The operation principle of correlation type cold metal detector is: when coil of strip is by cutting off correlation source during cold inspection, receive cold inspection connection signal in control program, judges have coil of strip to exist herein.
Batch the logic control principle of quick chain cold inspection dual: when steel coil transportation is to quick chain, step rate junction, cold inspection detect have herein coil of strip then signal be 1; When coil of strip leaves quick chain, step rate junction, cold inspection detection signal is 0.After cold inspection dual, under normal circumstances, two cold inspections drop into simultaneously, and two cold inspections are all chosen as ON mode by operative employee, and application "or" logic is by two cold inspection signal phases or (as long as namely two cold any one signals of inspection signal are 1, exporting is just 1).In addition, when there being a cold inspection that flase drop fault occurs, when namely not having a steel, detection signal is mistaken for 1, and operative employee is elected as OFF mode, makes it exit control; Select the normal cold inspection of another Received signal strength to be ON mode, in input control program, realize the automatic control to quick chain.
When the invention solves cold inspection generation two kinds of failure conditions, the control logic taked.A kind of situation still has coil of strip signal after the logical or coil of strip of cold inspection signal misconnection leaves, according to error signal, program judges that coil of strip rests on quick chain and step rate junction always, then chain condition limits quick chain and can not continue automatically to transport volume forward, and quick chain abends running; Another kind of situation is that cold inspection signal loses normal measuring ability, quick chain and step rate junction is actual has coil of strip to exist, but process accepts to signal be without coil of strip, quick chain then operates forward by normally chain, and this can cause quick chain and step rate junction that coil of strip occurs tumbling or accidents.
The result of use that quick chain cold inspection dual design control method batches in Taiyuan Iron and Steel Co. hot continuous rolling factory is as follows:
(1) the dual design of cold inspection had both improve the accuracy of detection signal, turn improved production efficiency.
(2) hot-rolled finished product steel coil transportation controls stable, largely avoided the abuse because cold inspection fault or flase drop cause, reduces equipment maintenance cost.
(3) hot rolling quick chain significantly reduces fault time, annual more than 1,200,000 yuan of the direct economic benefit obtained.
Detailed description of the invention
The invention process process automatically realizes completely in computer program.
The logic control principle of dual: when steel coil transportation is to quick chain, step rate junction, cold inspection detect have herein coil of strip then signal be 1; When coil of strip leaves quick chain, step rate junction, cold inspection detection signal is 0.After cold inspection dual, under normal circumstances, two cold inspections drop into simultaneously, and two cold inspections are all chosen as ON mode by operative employee, and application "or" logic is by two cold inspection signal phases or (as long as namely two cold any one signals of inspection signal are 1, exporting is just 1).In addition, when there being a cold inspection that flase drop fault occurs, when namely not having a steel, detection signal is mistaken for 1, and operative employee is elected as OFF mode, makes it exit control; Select the normal cold inspection of another Received signal strength to be ON mode, in input control program, realize the automatic control to quick chain.
Under normal circumstances, two cold inspections after dual are come into operation simultaneously, and namely ON mode is all selected in two cold inspections.If wherein any one cold inspection can't detect steel signal under this state, when another cold inspection still can normally work, the automatic control action of quick chain is normal, and the accuracy of cold inspection detection signal is improved, and produces unaffected.If confirm that certain cold inspection flase drop has measured steel signal; do not think stop production to overhaul immediately again; operative employee can be chosen OFF mode by picture; another detects normal cold inspection and chooses ON mode; now drop into the automatic control of cold inspection realization to quick chain; when Awaiting Overhaul is shut down, the cold inspection of reprocessing fault, can not affect normal production like this.
The present embodiment has installed again a cold metal detector B05a on the basis that original scene only has a B05 cold metal detector; In WINCC system human-machine interaction picture, add B05, B05a cold metal detector select ON, OFF button, realize dual by primary computer control program and control.
Embodiment 1
Under normal circumstances, ON mode is all selected in B05, B05a two cold inspections, comes into operation simultaneously.Break down once the cold inspection of B05 and cannot detect that coil of strip i.e. this signal is 0 always, now B05a is normal work, and namely when coil of strip is 1 by detection signal during B05a, when not having a coil of strip, detection signal is 0.Owing to adopting cold inspection dual to design, B05a ensure that the reliability of detection, quick chain misoperation can not be caused to cause coil of strip to drop, ensure that the automatic control of quick chain.
Embodiment 2
Under normal circumstances, ON mode is all selected in B05, B05a two cold inspections, comes into operation simultaneously.Break down once the cold inspection of B05a and cannot detect that coil of strip i.e. this signal is 0 always, now B05 is normal work, and namely when coil of strip is 1 by detection signal during B05, when not having a coil of strip, detection signal is 0.Owing to adopting cold inspection dual to design, B05 ensure that the reliability of detection, coil of strip also can not occur and collide the accident that drops, ensure that the automatic control of quick chain.
Embodiment 3
Once find that flase drop fault occurs cold inspection B05, inspection as cold in this has steel, there is not steel detection signal to be always 1, and program judges have coil of strip to exist all the time herein, so cause quick chain to stop transporting volume forward because of chain condition restriction.Now the mode of cold inspection B05 can be chosen OFF by operative employee, makes its control that quits a program, and the mode of cold inspection B05a is chosen On, only drops into the cold inspection of B05a in control program.When coil of strip arrives, B05a detection signal is 1, and coil of strip is 0 by rear detection signal, thus realizes the automatic control to quick chain, safeguards fault cold inspection B05 again, greatly reduce fault handling time when maintenance down.
Embodiment 4
Once find that flase drop fault occurs cold inspection B05a, inspection as cold in this has steel, there is not steel detection signal to be always 1, and program judges have coil of strip to exist all the time herein, so cause quick chain to stop transporting volume forward because of chain condition restriction.Now the mode of cold inspection B05a can be chosen OFF by operative employee, makes its control that quits a program, and the mode of cold inspection B05 is chosen ON, only drops into the cold inspection of B05 in control program.When coil of strip arrives, B05 detection signal is 1, and coil of strip is 0 by rear detection signal, and reliable B05 detection signal ensure that the automatic control of quick chain, safeguards fault cold inspection B05a again, greatly reduce fault handling time when maintenance down.
The realization of dual function also needs and controls coordinating of soft and hardware: L1 level computer adopts Siemens SIMATIC TDC controller, CPU board model: 6DD1600-0BA2; PROFIBUS communication board CP50M0 model: 6DD1661_0AD0; Ethernet communication plate CP51M1 model: 6DD1661_0AE1; ET200 tablet SM321 model: 321-1BL00-OAAO; Picture adopts SIMATIC WINCC system to realize human-machine interaction picture.The cold inspection of B05, B05a uses correlation type cold metal detector model to be LOS-TE12-4ZC1 manufacturer: Lucheng Sensor Co., Ltd., Changzhou.
Claims (3)
1. a hot continuous rolling batches the control method of the cold inspection dual of quick chain, it is characterized in that two cover correlation type cold metal detectors are installed in the both sides of the quick chain closing on step rate, when have coil of strip by time cut off the correlation source of the cold inspection of quick chain, receive cold inspection connection signal in control program; Apply the break-make of cold inspection signal to realize its logic control.
2. a kind of hot continuous rolling batches the control method of the cold inspection dual of quick chain according to claim 1, it is characterized in that described logic control is: when steel coil transportation is to quick chain, step rate junction, cold inspection detect have herein coil of strip then signal be 1; When coil of strip leaves quick chain, step rate junction, cold inspection detection signal is 0; Two cold inspections drop into simultaneously, and two cold inspections are all chosen as ON mode by operative employee, application "or" logic by two cold inspection signal phases or, as long as namely two cold any one signals of inspection signal are 1, exporting is just 1; When there being a cold inspection that flase drop fault occurs, when namely not having a steel, detection signal is mistaken for 1, and operative employee is elected as OFF mode, makes it exit control; Select the normal cold inspection of another Received signal strength to be ON mode, in input control program, realize the automatic control to quick chain.
3. a kind of hot continuous rolling batches the control method of the cold inspection dual of quick chain according to claim 1, described in its feature, logic control is: two cold inspections are simultaneously all in OFF mode, do one in program and be equivalent to the process that ON mode is all selected in two cold inspections, namely apply XOR and operative employee is selected cold inspection button state signal phase XOR, namely two cold inspection buttons all select ON simultaneously, or all select OFF simultaneously, output is 0; Two cold inspection buttons, one is selected ON, and another selects OFF, and output is 1; If wherein any one cold inspection can't detect steel signal, when another cold inspection still can normally work, the automatic control action of quick chain is normal; If confirm that certain cold inspection flase drop has measured steel signal, operative employee is chosen OFF mode by picture, and ON mode is chosen in another normal cold inspection, now only drops into the automatic control of cold inspection realization to quick chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186852.9A CN104889174B (en) | 2015-04-18 | 2015-04-18 | Control method for doubling of cold detection of hot continuous rolling reeling quick chain |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510186852.9A CN104889174B (en) | 2015-04-18 | 2015-04-18 | Control method for doubling of cold detection of hot continuous rolling reeling quick chain |
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| CN104889174A true CN104889174A (en) | 2015-09-09 |
| CN104889174B CN104889174B (en) | 2017-04-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2086225U (en) * | 1991-03-16 | 1991-10-09 | 骆扬 | Motor vehicle signal lamp breakdown detecting unit |
| CN1553204A (en) * | 2003-06-06 | 2004-12-08 | 台达电子工业股份有限公司 | Automatic electrostatic instant warning device and method thereof |
| CN1677288A (en) * | 2004-09-01 | 2005-10-05 | 兰州大成自动化工程有限公司 | Logic |
| CN2814331Y (en) * | 2005-07-18 | 2006-09-06 | 宝山钢铁股份有限公司 | Cold metal detector with centring indicator |
| CN102992002A (en) * | 2012-10-18 | 2013-03-27 | 吴江市元通纺织品有限公司 | Alarming device for conveyer belt |
-
2015
- 2015-04-18 CN CN201510186852.9A patent/CN104889174B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2086225U (en) * | 1991-03-16 | 1991-10-09 | 骆扬 | Motor vehicle signal lamp breakdown detecting unit |
| CN1553204A (en) * | 2003-06-06 | 2004-12-08 | 台达电子工业股份有限公司 | Automatic electrostatic instant warning device and method thereof |
| CN1677288A (en) * | 2004-09-01 | 2005-10-05 | 兰州大成自动化工程有限公司 | Logic |
| CN2814331Y (en) * | 2005-07-18 | 2006-09-06 | 宝山钢铁股份有限公司 | Cold metal detector with centring indicator |
| CN102992002A (en) * | 2012-10-18 | 2013-03-27 | 吴江市元通纺织品有限公司 | Alarming device for conveyer belt |
Non-Patent Citations (2)
| Title |
|---|
| 刘晓明: "EMD冷金属检测器在宽厚板工程中的应用", 《基础自动化》 * |
| 徐正光等: "冷床区钢坯自动跟踪系统关键技术的研发", 《计算机应用与软件》 * |
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| CN104889174B (en) | 2017-04-26 |
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