CN104043681B - A kind of coil wrapper roll roll gap calibration method - Google Patents
A kind of coil wrapper roll roll gap calibration method Download PDFInfo
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- CN104043681B CN104043681B CN201310081006.1A CN201310081006A CN104043681B CN 104043681 B CN104043681 B CN 104043681B CN 201310081006 A CN201310081006 A CN 201310081006A CN 104043681 B CN104043681 B CN 104043681B
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Abstract
The invention discloses a kind of coil wrapper roll roll gap calibration method, this acyclic homologically trioial method makes a steel cylinder, and is enclosed within reel by steel cylinder, after then controlling reel spreading stretching steel cylinder, controls Wrapping Roll motor stalling and has a power failure; Reset drum speed, and control reel driven by motor reel and rotate by setting speed; And then progressively reduce the roll gap of Wrapping Roll, until Wrapping Roll contacts with steel cylinder, record Wrapping Roll roll gap during contact; Finally surveyed roll gap is demarcated in basic automatization computer.Adopt acyclic homologically trioial method of the present invention, the personnel of decreasing enter the step of coiling machine inside, avoid the error that human factor causes, and improve security and the accuracy of acyclic homologically trioial operation.
Description
Technical field
The present invention relates to coiling machine control technology, more particularly, relate to a kind of coil wrapper roll roll gap calibration method.
Background technology
Coiling machine is the visual plant of hot rolling line, for the finished product hot-strip of rolling is rolled into coil of strip.After coiling machine is positioned at mm finishing mill unit, it is last procedure of hot continuous rolling production line.Refer to Fig. 1, coiling machine 10 mainly comprises roller-way 11, flipper guide 12, pinch roll 13, three capital equipments such as Wrapping Roll 14 and reel 15.Wherein band steel is delivered to coiling machine by mm finishing mill unit by roller-way 11 primary responsibility.Flipper guide 12 Main Function is centering band steel.The Main Function of pinch roll 13 stings the steel stage at head to apply certain clamping force to band steel, implements first time flexural deformation to it simultaneously; At afterbody coil ing one, stable tension force is applied, to ensure good scroll quality to band steel.Wrapping Roll 14 helps curved bel steel, and makes band steel tightly be wound around coiling 15.Reel 15 is nucleus equipments of coiling machine, after band steel is wound around, applies forward direction tension force, to guarantee that scroll is up-to-standard to it.
The allowed band of the accuracy error of the roll gap of Wrapping Roll is≤1mm.When deviation is larger, Wrapping Roll can not good holddown belt steel head, causes frictional force to decline, easily occurs skidding accident.Refer to Fig. 2, the roll gap calibration method of existing Wrapping Roll is as follows: first control reel spreading to 745mm, heart position is wound around the lead rod of a diameter >6.0mm within the roll, Wrapping Roll is pressed to 5.0mm, Wrapping Roll is opened, lead rod is taken out, measures lead rod, use measured value in basic automatization computer, demarcate the roll gap of Wrapping Roll.
In actual production process, find that the roll gap calibration method of above-mentioned Wrapping Roll exists more defect:
1, personnel must be relied on to enter coiling machine inside and place lead rod, because coiling machine internal structure is complicated, greasy dirt is many, there is larger potential safety hazard.
2, the selection of lead rod placement location, the whole process need manual operation of measurement, be difficult to the error avoiding human factor to cause, and the precision of acyclic homologically trioial is difficult to ensure.
3, overshoot problem may be there is in the process that Wrapping Roll presses down in long distance, namely the actual roll gap of Wrapping Roll may press to and be less than setting roll gap, then pull back to setting roll gap again, but now lead rod is extruded, when there is overshoot problem, the roll gap of the Wrapping Roll of demarcation may be far smaller than actual roll gap.
Summary of the invention
For the above-mentioned shortcoming existed in prior art, the object of this invention is to provide a kind of coil wrapper roll roll gap calibration method, cooling medium can be utilized directly to freeze to video camera.
For achieving the above object, the present invention adopts following technical scheme:
This coil wrapper roll roll gap calibration method, comprises the following steps:
A. make a steel cylinder, and steel cylinder is enclosed within reel;
B., after controlling reel spreading stretching steel cylinder, control Wrapping Roll motor stalling and have a power failure;
C. set drum speed, and control reel driven by motor reel and rotate by setting speed;
D. progressively reduce the roll gap of Wrapping Roll, until Wrapping Roll contacts with steel cylinder, record Wrapping Roll roll gap during contact;
E. surveyed roll gap is demarcated in basic automatization computer.
In step, the internal diameter of described steel cylinder is 720 ~ 750mm, and wall thickness is 10 ~ 50mm, and tube length is 500 ~ 2000mm, the yield strength >=500Mpa of material.
In step C, described drum speed is set as 2 ~ 6m/s.
In step C, also survey motor speed by reel motor encoder and feed back, compensating to carry out adjustment to motor speed.
The concrete steps of described step D are as follows:
D1. stretched out by the computer controlled liquefaction cylinder of basic automatization, to reduce the roll gap of Wrapping Roll;
The length of D2. being stretched out by in-oil cylinder position sensor detection oil cylinder also feeds back to basic automatization computer;
D3., when roll gap is decreased to accurate adjustment initial roll gap, in units of accurate adjustment drafts, classification progressively reduces roll gap;
D4. when Wrapping Roll contacts steel cylinder, reel drives Wrapping Roll to rotate, and the Wrapping Roll of passive rotation drives Wrapping Roll motor to rotate, and maintains Wrapping Roll rotation certain hour;
D5. when Wrapping Roll motor rotates, recorded by encoder and input basic automatization computer, and obtaining Wrapping Roll roll gap when contacting by it.
The span of described accurate adjustment initial roll gap is 2 ~ 20mm; Span 0.1 ~ the 1mm of described accurate adjustment drafts; Described Wrapping Roll rotates the span 5 ~ 20s held time.
In technique scheme, steel cylinder by making one steel cylinder, and is enclosed within reel by coil wrapper roll roll gap calibration method of the present invention, after then controlling reel spreading stretching steel cylinder, controls Wrapping Roll motor stalling and has a power failure; Reset drum speed, and control reel driven by motor reel and rotate by setting speed; And then progressively reduce the roll gap of Wrapping Roll, until Wrapping Roll contacts with steel cylinder, record Wrapping Roll roll gap during contact; Finally surveyed roll gap is demarcated in basic automatization computer.Adopt acyclic homologically trioial method of the present invention, the personnel of decreasing enter the step of coiling machine inside, avoid the error that human factor causes, and improve security and the accuracy of acyclic homologically trioial operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the coiling machine of prior art;
Fig. 2 is the reel of prior art and the structural representation of Wrapping Roll;
Fig. 3 is the idiographic flow block diagram of roll gap calibration method of the present invention;
Fig. 4 is that steel ring sleeve of the present invention is to the structural representation on reel;
Fig. 5 is the concrete theory diagram of roll gap calibration method of the present invention.
Detailed description of the invention
Technical scheme of the present invention is further illustrated below in conjunction with drawings and Examples.
Refer to shown in Fig. 3, Fig. 5, coil wrapper roll roll gap calibration method of the present invention specifically comprises the following steps:
First, first make a steel cylinder, shown in Figure 4, the internal diameter of steel cylinder 18 is 720 ~ 750mm, and steel cylinder 18 wall thickness is 10 ~ 50mm, and steel cylinder length is 500 ~ 2000mm, the yield strength >=500Mpa of material.
Then, use coil stripping car to be enclosed within reel by steel cylinder 18, then control reel spreading thus stretching steel cylinder 18, now control Wrapping Roll motor 25 stall and have a power failure.
Again drum speed is set as 2 ~ 6m/s, export this setting by a CPU31 of basic automatization computer 30 and turn angle value 32, the velocity amplitude of setting is delivered to the control change-over switch 21 of drive apparatus 20, the control appliance 22 of power supply machine controls reel motor 23 peace and runs according to this setting speed value, and reel driven by motor reel 15 is rotated with the angle value that turns of setting.Now, surveyed the rotating speed of motor 23 by reel motor encoder 24, and feed back to the control appliance 22 of motor, compensate to carry out adjustment to rotating speed.
And then reduce the roll gap of Wrapping Roll 14, control oil cylinder 16 by the 2nd CPU34 of basic automatization computer 30 by Wrapping Roll servo system 17 and stretch out, to reduce the roll gap of Wrapping Roll 14.Detect by the position sensor 35 be built in oil cylinder 16 length that oil cylinder stretches out, and feed back to the 2nd CPU34, when roll gap is decreased to accurate adjustment initial roll gap g, in units of accurate adjustment drafts b, classification progressively reduces roll gap.Wherein, the span of accurate adjustment initial roll gap g is 2 ~ 20mm; Accurate adjustment drafts b is span 0.1 ~ 1mm.
When Wrapping Roll 14 contacts steel cylinder 18, reel drives Wrapping Roll to rotate, and the Wrapping Roll 14 of passive rotation drives Wrapping Roll motor 25 to rotate, and maintains Wrapping Roll rotational time c, and the span rotating the c that holds time is 5 ~ 20s.
Once Wrapping Roll motor 25 rotates, rotating speed is detected by its encoder 26, and pass to the 3rd CPU33, now obtain roll gap when Wrapping Roll 14 contacts steel cylinder 18 by basic automatization computer 30, namely Wrapping Roll start passive rotate time roll gap, and basic automatization computer 30 in mark carry out demarcating.
It should be noted that at this, if do not install steel cylinder 18, directly first reel at low speed is demarcated, but can cause the inaccurate problem of stated accuracy, and this is caused by following reason:
1, refer to Fig. 2, after reel 15 spreading, its fanning strip 151, to surrounding expansion, just there will be gap 152 between fanning strip 151, can be able to impact when Wrapping Roll 14 encounters reel 15 surface to the mechanical part of Wrapping Roll 14 roll surface, reel 15 inside;
2, after fanning strip 151 uses a period of time, the problems such as wearing and tearing are uneven, mechanical connection loosens may be there is.When fanning strip 151 rotates to reel 15, can at the falls downward 3 ~ 6mm of deadweight, in this case, roll gap calibration precision certainly can not be accurate.
3, because the design of reel 15 there are differences, some reels 15, in a certain interval of harmomegathus scope, inwardly can shrink after being extruded, so also can affect acyclic homologically trioial accuracy by Wrapping Roll 14.
In sum, adopt roll gap calibration method of the present invention, have the following advantages:
1, do not need personnel to enter coiling machine inside and place lead rod, acyclic homologically trioial operational security is good.
2, the effective difficulty error of avoiding human factor to cause, the repeatability of acyclic homologically trioial precision is high.
3, the overshoot problem produced in the process that Wrapping Roll can be avoided to press down in long distance is on the impact of acyclic homologically trioial precision.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (6)
1. a coil wrapper roll roll gap calibration method, is characterized in that:
Comprise the following steps:
A. make a steel cylinder, and steel cylinder is enclosed within reel;
B., after controlling reel spreading stretching steel cylinder, control Wrapping Roll motor stalling and have a power failure;
C. set drum speed, and control reel driven by motor reel and rotate by setting speed;
D. progressively reduce the roll gap of Wrapping Roll, until Wrapping Roll contacts with steel cylinder, record Wrapping Roll roll gap during contact;
E. surveyed roll gap is demarcated in basic automatization computer.
2. coil wrapper roll roll gap calibration method as claimed in claim 1, is characterized in that:
In step, the internal diameter of described steel cylinder is 720 ~ 750mm, and wall thickness is 10 ~ 50mm, and tube length is 500 ~ 2000mm, the yield strength >=500Mpa of material.
3. coil wrapper roll roll gap calibration method as claimed in claim 1, is characterized in that:
In step C, described drum speed is set as 2 ~ 6m/s.
4. coil wrapper roll roll gap calibration method as claimed in claim 1, is characterized in that:
In step C, also survey motor speed by reel motor encoder and feed back, compensating to carry out adjustment to motor speed.
5. coil wrapper roll roll gap calibration method as claimed in claim 1, is characterized in that:
The concrete steps of described step D are as follows:
D1. stretched out by the computer controlled liquefaction cylinder of basic automatization, to reduce the roll gap of Wrapping Roll;
The length of D2. being stretched out by in-oil cylinder position sensor detection oil cylinder also feeds back to basic automatization computer;
D3., when roll gap is decreased to accurate adjustment initial roll gap, in units of accurate adjustment drafts, classification progressively reduces roll gap;
D4. when Wrapping Roll contacts steel cylinder, reel drives Wrapping Roll to rotate, and the Wrapping Roll of passive rotation drives Wrapping Roll motor to rotate, and maintains Wrapping Roll rotation certain hour;
D5. when Wrapping Roll motor rotates, by encoder measuring rotating speed, and input basic automatization computer, and obtain Wrapping Roll roll gap when contacting by basic automatization computer.
6. coil wrapper roll roll gap calibration method as claimed in claim 5, is characterized in that:
The span of described accurate adjustment initial roll gap is 2 ~ 20mm;
Span 0.1 ~ the 1mm of described accurate adjustment drafts;
Described Wrapping Roll rotates the span 5 ~ 20s held time.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310081006.1A CN104043681B (en) | 2013-03-14 | 2013-03-14 | A kind of coil wrapper roll roll gap calibration method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310081006.1A CN104043681B (en) | 2013-03-14 | 2013-03-14 | A kind of coil wrapper roll roll gap calibration method |
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| CN104043681A CN104043681A (en) | 2014-09-17 |
| CN104043681B true CN104043681B (en) | 2016-03-30 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106269877B (en) * | 2016-08-25 | 2018-04-06 | 山东钢铁股份有限公司 | A kind of coil wrapper roll roll gap automatic Calibration and precision test method |
| CN109834132B (en) * | 2019-03-27 | 2020-06-19 | 山西太钢不锈钢股份有限公司 | Zero adjustment control method for auxiliary winding roller of winding machine |
| CN113399476B (en) * | 2021-06-21 | 2022-11-22 | 重庆钢铁股份有限公司 | Zero adjustment accounting protection method for rolling mill |
| CN113560348A (en) * | 2021-08-02 | 2021-10-29 | 常州宝菱重工机械有限公司 | Cooling system for coiler drum |
| CN113996671B (en) * | 2021-10-29 | 2024-03-08 | 江苏沙钢钢铁有限公司 | Method, device, equipment and storage medium for calibrating roll gap of wrapper roll |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110227A (en) * | 1997-06-18 | 1999-01-19 | Mitsubishi Heavy Ind Ltd | Automatic gap zero regulating device for wrapper roll of winder and method therefor |
| JP2001001044A (en) * | 1999-06-24 | 2001-01-09 | Kawasaki Steel Corp | Zero point adjusting method of wrapper roll |
| JP2002219513A (en) * | 2001-01-25 | 2002-08-06 | Kawasaki Heavy Ind Ltd | Method and apparatus for controlling gap |
| CN102039330A (en) * | 2010-10-16 | 2011-05-04 | 山西太钢不锈钢股份有限公司 | Parameter setting method of hot continuous rolling thin slab coiling device and coiling method of hot continuous rolling thin slab |
| CN102615143A (en) * | 2012-03-15 | 2012-08-01 | 山西太钢不锈钢股份有限公司 | Method for dynamically judging precision exception of winding drum of reeling machine |
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2013
- 2013-03-14 CN CN201310081006.1A patent/CN104043681B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1110227A (en) * | 1997-06-18 | 1999-01-19 | Mitsubishi Heavy Ind Ltd | Automatic gap zero regulating device for wrapper roll of winder and method therefor |
| JP2001001044A (en) * | 1999-06-24 | 2001-01-09 | Kawasaki Steel Corp | Zero point adjusting method of wrapper roll |
| JP2002219513A (en) * | 2001-01-25 | 2002-08-06 | Kawasaki Heavy Ind Ltd | Method and apparatus for controlling gap |
| CN102039330A (en) * | 2010-10-16 | 2011-05-04 | 山西太钢不锈钢股份有限公司 | Parameter setting method of hot continuous rolling thin slab coiling device and coiling method of hot continuous rolling thin slab |
| CN102615143A (en) * | 2012-03-15 | 2012-08-01 | 山西太钢不锈钢股份有限公司 | Method for dynamically judging precision exception of winding drum of reeling machine |
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| CN104043681A (en) | 2014-09-17 |
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