CN102284504A - Control method of reconstruction of lost coiling tracking of hot rolling production line - Google Patents
Control method of reconstruction of lost coiling tracking of hot rolling production line Download PDFInfo
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- CN102284504A CN102284504A CN2011102315619A CN201110231561A CN102284504A CN 102284504 A CN102284504 A CN 102284504A CN 2011102315619 A CN2011102315619 A CN 2011102315619A CN 201110231561 A CN201110231561 A CN 201110231561A CN 102284504 A CN102284504 A CN 102284504A
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Abstract
The invention relates to a control method for preventing lost coiling tracking from causing steel scraps in a hot continuous rolling strip steel production line. The technical scheme comprises the following steps of: A, determining lost tracking of finish-rolling and coiling rolling strip steel; B, ensuring normal speed acceleration of a coiling block and a wrapper roller and steel coiling preparation by a coiler by using a rolling signal of a tracking-free rolling mill as a trigger signal of speed acceleration of a coiler mandrel and the wrapper roller; C, determining whether the strip steel reaches the coiler, when the strip steel reaches the coiler, starting a coiling tracking reconstructing system, and providing normal head and tail tracking signals for each control system of the coiler; and D, determining head and tail positions of the strip steel by integration on the strip steel speed. The invention has the advantages that the lost tracking can be automatically distinguished by a computer system and software thereof, the tracking reconstructing system is automatically started, an accurate tracking signal is provided for the coiler, normal steel coiling of the coiler is realized, and the steel scraps are avoided being coiled to influence normal production. The method has the characteristics of scientificity, applicability and accuracy.
Description
Technical field
The present invention relates to the hot-continuous-rolling strip steel production line and prevent to batch to follow the tracks of and lose the control method that causes steel scrap, belong to technical field of steel rolling.
Background technology
In the hot rolling production process of Siemens Control, cause finish rolling and batch tracking and lose because the band steel skids when nipping finishing mill or secondary computer roll-force and actual roll-force deviation are excessive, in the case because finishing mill has been put the position, the band steel can pass through finishing mill, but coiling machine is because can not receive head tracking signal and finishing mill load signal, and reel and help the winding up roller coiling machine that do not raise speed not do coil and prepare causes and batches steel scrap, influence product percent of pass, the ordinary production of influence band steel.
Summary of the invention
The purpose of this invention is to provide a kind of hot rolling wire reel-up and follow the tracks of the control method of losing reconstruction, by starting winding unit, afterbody tracking reconstructing system; Coiling machine finished normally decide tail, unloaded and lick journey.Solve the problems referred to above that background technology exists.
Technical scheme of the present invention is: the hot rolling wire reel-up is followed the tracks of the control method lose reconstruction, comprises following steps: A. determines that finish rolling batches just to follow the tracks of at rolling band steel and loses;
B. with not with the mill milling signal of tracking as coiler mandrel with help the triggering signal of winding up roller speed-raising, guarantee reel and help winding up roller normally to raise speed, coiling machine is carried out coil and is prepared;
C. determine that the band steel has arrived coiling machine, when the band steel arrives coiling machine, start and batch the tracking reconstructing system, for each control system of coiling machine provides normal head and afterbody tracking signal;
D. by strip speed is carried out integration, determine band steel toe portion, tail position.
The relational expression of determining band steel toe portion, tail position is expressed as: S=∫ Vdt, and in the formula: S is displacement, and V is a speed, and t is the time.
The present invention is not destroying on original tracing process basis, follows the tracks of when losing when batching, and offers the normal tracking signal of each control system of coiling machine with the tracking of batching reconstruction.By to the strip speed integration, to the end, the afterbody tracking signal, start winding unit then, afterbody is followed the tracks of reconstructing system, coiling machine finished normally decide tail, unloaded and lick journey.
Good effect of the present invention is: when finish rolling is batched just when rolling band steel tracking is lost, do not destroying on original tracing process basis, automatically distinguish to follow the tracks of by computer system and software thereof and lose, automatically start and follow the tracks of reconstructing system, for coiling machine provides tracking signal accurately, realize the normal coil of coiling machine, avoid causing and batch steel scrap, influence ordinary production, improve the qualification rate of product.This method has the characteristics of science, applicability, accuracy.
Description of drawings
Fig. 1 is that the reconstructing system process flow diagram flow chart is lost in the coiling machine tracking.
The specific embodiment
The present invention will be further described below by embodiment.
The hot rolling wire reel-up is followed the tracks of the control method of losing reconstruction, be not destroy on original tracing process basis, distinguish automatically to follow the tracks of by computer system and software thereof and lose, start automatically and follow the tracks of reconstructing system, for coiling machine provides tracking signal accurately, realize the method for the normal coil of coiling machine.Its control method is in regular turn:
A. definite finish rolling is batched just to follow the tracks of at rolling band steel and is lost;
B. with not with the mill milling signal of tracking as coiler mandrel with help the triggering signal of winding up roller speed-raising, guarantee reel and help winding up roller normally to raise speed;
C. determine that the band steel has arrived coiling machine, when the band steel arrives coiling machine, start and batch the tracking reconstructing system, for each control system of coiling machine provides normal head and afterbody tracking signal;
D. tracing positional determines
Displacement and length velocity relation formula are expressed as:
S=∫Vdt
In the formula: S is the time for displacement V for speed t
By strip speed is carried out integration, determine band steel toe portion, tail position.
Described steps A further may further comprise the steps:
A1. determine that finishing mill is just in steel rolling;
A2. determine to follow the tracks of this moment not operation.
Described step B further may further comprise the steps:
B1. with not with the mill milling signal of tracking as coiler mandrel with help the triggering signal of winding up roller speed-raising, guarantee reel and help winding up roller normally to raise speed;
B2. with not with the mill milling signal of tracking triggering signal, guarantee that coiling machine carries out coil and prepare as coiling machine READY.
Described step C further may further comprise the steps:
C1. determining by the result of steps A that rolled band steel is followed the tracks of loses;
C2. determine that by the result of step B coiling machine carries out coil and prepare;
C3. determine that the band steel has arrived the preceding HMD of coiling machine No. 1;
C4. batch the head tracking reconstructing system by result's startup of C1, C2 and C3, coiling machine is finished worn the band loading procedure normally, guarantee that each system such as coil diameter, tension force, speed, roll gap control are accurate in the coil process;
C5. determine that the band steel has left the preceding HMD of coiling machine No. 1;
C6. start by the result of C1 and C5 and batch afterbody and follow the tracks of reconstructing system, coiling machine finished normally decide tail, unloaded and lick journey.
Described step D further may further comprise the steps:
D1. determine that band steel toe portion has arrived coiling machine No. 1, from then on the position begins the strip speed integration is obtained head tracking signal;
D2. determine that band steel afterbody has arrived coiling machine No. 1, from then on the position begins the strip speed integration is obtained the afterbody tracking signal.
Claims (3)
1. a hot rolling wire reel-up is followed the tracks of the control method of losing reconstruction, it is characterized in that comprising following steps:
A. definite finish rolling is batched just to follow the tracks of at rolling band steel and is lost;
B. with not with the mill milling signal of tracking as coiler mandrel with help the triggering signal of winding up roller speed-raising, guarantee reel and help winding up roller normally to raise speed that coiling machine is carried out coil and prepared;
C. determine that the band steel has arrived coiling machine, when the band steel arrives coiling machine, start and batch the tracking reconstructing system, for each control system of coiling machine provides normal head and afterbody tracking signal;
D. by strip speed is carried out integration, determine band steel toe portion, tail position.
2. follow the tracks of the control method of losing reconstruction according to the described hot rolling wire reel-up of claim 1, it is characterized in that described steps A may further comprise the steps:
A1. determine that finishing mill is just in steel rolling;
A2. determine to follow the tracks of this moment not operation;
Described step B may further comprise the steps:
B1. with not with the mill milling signal of tracking as coiler mandrel with help the triggering signal of winding up roller speed-raising, guarantee reel and help winding up roller normally to raise speed;
B2. with not with the mill milling signal of tracking triggering signal, guarantee that coiling machine carries out coil and prepare as coiling machine;
Described step C may further comprise the steps:
C1. determining by the result of steps A that rolled band steel is followed the tracks of loses;
C2. determine that by the result of step B coiling machine carries out coil and prepare;
C3. before determining that the band steel has arrived coiling machine;
C4. batch the head tracking reconstructing system by result's startup of C1, C2 and C3, coiling machine is finished worn the band loading procedure normally, guarantee that each system such as coil diameter, tension force, speed, roll gap control are accurate in the coil process;
C5. before determining that the band steel has left coiling machine;
C6. start by the result of C1 and C5 and batch afterbody and follow the tracks of reconstructing system, coiling machine finished normally decide tail, unloaded and lick journey;
Described step D may further comprise the steps:
D1. determine that band steel toe portion has arrived coiling machine, from then on the position begins the strip speed integration is obtained head tracking signal;
D2. determine that band steel afterbody has arrived coiling machine, from then on the position begins the strip speed integration is obtained the afterbody tracking signal.
3. follow the tracks of the control method of losing reconstruction according to the described hot rolling wire reel-up of claim 2, it is characterized in that the relational expression of determining band steel toe portion, tail position is expressed as: S=∫ Vdt, in the formula: S is displacement, and V is a speed, and t is the time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110231561 CN102284504B (en) | 2011-08-15 | 2011-08-15 | Control method of reconstruction of lost coiling tracking of hot rolling production line |
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| CN 201110231561 CN102284504B (en) | 2011-08-15 | 2011-08-15 | Control method of reconstruction of lost coiling tracking of hot rolling production line |
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| CN102284504A true CN102284504A (en) | 2011-12-21 |
| CN102284504B CN102284504B (en) | 2013-06-05 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553939A (en) * | 2011-12-30 | 2012-07-11 | 中冶南方（武汉）自动化有限公司 | Method for recovering continuously treated line strip steel tracking system |
| CN102553958A (en) * | 2011-12-30 | 2012-07-11 | 中冶南方（武汉）自动化有限公司 | Tracking recovery device for strip steel tracking system of continuous processing line to normal mode |
| CN104785532A (en) * | 2015-04-01 | 2015-07-22 | 山东钢铁股份有限公司 | Strip threading control method and device |
| CN108906892A (en) * | 2018-06-06 | 2018-11-30 | 北京科技大学设计研究院有限公司 | A kind of reversible roughing mill rolled piece tail portion tracking based on self study |
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| JPH09122719A (en) * | 1995-10-31 | 1997-05-13 | Nisshin Steel Co Ltd | Method for tracking tail end of strip |
| KR19990001794A (en) * | 1997-06-17 | 1999-01-15 | 김종진 | Control method of automatic stop of strip end of hot rolled winding machine |
| JP2003181510A (en) * | 2001-12-17 | 2003-07-02 | Nippon Steel Corp | Tracking method for steel material in continuous rolling and device thereof |
| CN101722196A (en) * | 2009-11-10 | 2010-06-09 | 武汉钢铁(集团)公司 | Method for calculating and locating strip steel head of automatic stepping system of hot continuous rolling coiling machine |
| CN201862657U (en) * | 2010-11-24 | 2011-06-15 | 武汉钢铁(集团)公司 | Coiling laser tracking system |
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2011
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| JPH09122719A (en) * | 1995-10-31 | 1997-05-13 | Nisshin Steel Co Ltd | Method for tracking tail end of strip |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102553939A (en) * | 2011-12-30 | 2012-07-11 | 中冶南方（武汉）自动化有限公司 | Method for recovering continuously treated line strip steel tracking system |
| CN102553958A (en) * | 2011-12-30 | 2012-07-11 | 中冶南方（武汉）自动化有限公司 | Tracking recovery device for strip steel tracking system of continuous processing line to normal mode |
| CN104785532A (en) * | 2015-04-01 | 2015-07-22 | 山东钢铁股份有限公司 | Strip threading control method and device |
| CN104785532B (en) * | 2015-04-01 | 2016-10-05 | 山东钢铁股份有限公司 | A kind of threading control method and device |
| CN108906892A (en) * | 2018-06-06 | 2018-11-30 | 北京科技大学设计研究院有限公司 | A kind of reversible roughing mill rolled piece tail portion tracking based on self study |
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| CN102284504B (en) | 2013-06-05 |
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