CN106623446A - Method for acquiring starting time and ending time of steel coil passing through technology detecting point on hot-cold rolling production line - Google Patents
Method for acquiring starting time and ending time of steel coil passing through technology detecting point on hot-cold rolling production line Download PDFInfo
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- CN106623446A CN106623446A CN201611070025.4A CN201611070025A CN106623446A CN 106623446 A CN106623446 A CN 106623446A CN 201611070025 A CN201611070025 A CN 201611070025A CN 106623446 A CN106623446 A CN 106623446A
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- coil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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Abstract
The invention relates to a method for acquiring starting time and ending time of a steel coil passing through a technology detecting point on a hot-cold rolling production line. The method comprises the following steps: Step I, acquiring the starting time and ending time T1 and T1' when the steel coil passes through a welding line detecting point; Step II, acquiring the steel coil length L between the welding line detecting point and the technology detecting point; Step III, according to the relative position relation of the technology detecting point on the welding line detecting point, acquiring the real-time speed data of the steel coil after or before T1, and calculating the operating length Lt of the steel coil after or before T1, wherein the moment T is the starting time when the steel coil passes through the technology detecting point when Lt is equal to L; and acquiring the ending time when the steel coil passes through the technology detecting point with the same method. According to the embodiment of the invention, the starting time and the ending time when the steel coil passes through the welding line detecting point are taken as standards, and real-time technological parameters on a production line are adopted to forward or backward calculate and judge the starting time and ending time when the steel coil passes through the corresponding technology detecting point, so that the precision of the obtained result data can be effectively improved.
Description
Technical field
The present invention relates to a kind of hot cold rolling production technical field, and in particular to fabrication evaluation point in a kind of hot cold rolling producing line
Coil of strip starts over time obtaining method.
Background technology
Because hot cold-rolling process producing line distance is very long, and (steel coil head is through a certain station the time that starts over of coil of strip
Time and coil of strip afterbody through a certain station time) often only producing line head (uncoiler) or producing line afterbody (coiling machine)
Upper tracking, and do not track in producing line central region.
Usually, according to production needs, need to obtain coil of strip (from head to afterbody) in process of production through each technique
Test point is (such as：Calibrator, tensometer, thermometer etc.) time, according to this time range for obtaining, (steel coil head is through each
The time of test point to coil of strip afterbody through each test point time), one group is obtained from real-time data base and is arranged in temporal sequence
The data value of row, the data value that this group is arranged in temporal sequence is exactly its corresponding process parameter value in production process of steel coil.
This group of data value can be shown in the way of curve in visualization system, it is also possible to calculate the feature of correspondence coil of strip (most
Big value, minimum of a value, mean value and standard deviation), so as to carry out quality analysis and judgement.
At this stage, obtain coil of strip number approach be in coiling machine or uncoiler, be exactly steel coil head one enter coiling machine or
After uncoiler, the new coil of strip ID of system update one, and record this time.But this time is coil of strip reaches coiling machine
Or the time of uncoiler, and the coil of strip of our demands time of each fabrication evaluation point before coiling machine or uncoiler be cannot
Directly obtain.The general time that starts over for adding and subtracting coiling machine by executeaaafunction obtains, inaccurate, leads to not to coil of strip
Quality analysis and judgement are effectively carried out.
The content of the invention
The present embodiments relate to the coil of strip of fabrication evaluation point starts over time obtaining method in a kind of hot cold rolling producing line,
The segmental defect of prior art can at least be solved.
The present embodiments relate to the coil of strip of fabrication evaluation point starts over time obtaining method in a kind of hot cold rolling producing line,
Comprise the following steps：
Step one, obtains time started T1 and end time T1 ' of the coil of strip through weld seam detection point；
Step 2, obtains coil of strip length L between weld seam detection point and the fabrication evaluation point of data to be obtained in producing line；
Step 3, if fabrication evaluation point is after the weld seam detection point, the acquisition coil of strip is after the T1
Real-time speed data, and calculate running length Lt of the coil of strip after the T1, the moment T during Lt=L is
Time started of the coil of strip through the fabrication evaluation point；Coil of strip real-time speed data in the T1 ' afterwards are obtained,
And coil of strip running length Lt ' in the T1 ' afterwards is calculated, the moment T ' during Lt '=L is the coil of strip and passes through
The end time of the fabrication evaluation point；
If the fabrication evaluation point is before the weld seam detection point, real-time speed of the coil of strip before the T1 is obtained
Degrees of data, and running length Lt of the coil of strip before the T1 is calculated, the moment T during Lt=L is the coil of strip
Through the time started of the fabrication evaluation point；Real-time speed data of the coil of strip before the T1 ' are obtained, and calculates institute
Running length Lt ' of the coil of strip before the T1 ' is stated, the moment T ' during Lt '=L is the coil of strip through the technique
The end time of test point.
In as one of embodiment, step one, the acquisition methods of the T1 include：
The coil of strip is obtained through uncoiler or the time started Ts of coiling machine, and judges that the Ts is the correspondence uncoiling
Machine still corresponds to the coiling machine；
If the corresponding uncoilers of the Ts, the T1 is that first weld seam of the weld seam detection point after the Ts is touched
The time of sending out；
If the corresponding coiling machines of the Ts, the T1 is first weld seam triggered time before the Ts.
In as one of embodiment, step one, the acquisition methods of the T1 ' include：
If the corresponding uncoilers of the Ts, the T1 ' is first weld seam triggered time after the T1；
If the corresponding crimping machines of the Ts, the T1 ' is first weld seam triggered time before the T1.
In as one of embodiment, step one, the acquisition methods of the T1 ' include：
The coil of strip is obtained through uncoiler or the end time Te of coiling machine, and judges that the Te is the correspondence uncoiling
Machine still corresponds to the coiling machine；
If the corresponding uncoilers of the Te, the T1 ' is first weld seam of the weld seam detection point after the Te
Triggered time；
If the corresponding coiling machines of the Te, the T1 ' is first weld seam triggered time before the Te.
Used as one of embodiment, in step 2, the acquisition methods of the L include：
Determine kink quantity n between the weld seam detection point and fabrication evaluation point；
If n=0, the L is the distance between the weld seam detection point and described fabrication evaluation point；
If n ＞ 0, distance section is with the kink of the weld seam detection point, fabrication evaluation point and the n
Point, then the set amount sum of each kinks of the L=+each adjacent two are apart from the distance between node sum.
Used as one of embodiment, in step 2, the acquisition methods of the L also include：
Set up apart from node parameter table, write each adjacent two is apart from the distance between node data and the reality of each kink
When set amount data, wherein, with the range data be on the occasion of represent the fabrication evaluation point be located at the weld seam detection point after,
Represent that the fabrication evaluation point is located at before the weld seam detection point as negative value with the range data；
When the L need to be obtained, in the node parameter table related data is searched.
Used as one of embodiment, in the table apart from node parameter, control write each adjacent two is between node
The real-time speed data of the coil of strip；In step 3, the real-time speed data of the coil of strip are searched in the node parameter table.
The embodiment of the present invention at least has the advantages that：The present embodiment with the coil of strip of weld seam detection point by starting knot
On the basis of the beam time, and calculated forward or backward by the Real-time process parameter in producing line and judge coil of strip through correspondence fabrication evaluation point
Coil of strip start over the time, the degree of accuracy of the result data of acquisition can be effectively improved.In the present embodiment, due to weld seam detection point
It is closer to the distance with each fabrication evaluation point positioned at hot cold rolling producing line central region, thus the degree of accuracy of the result data for obtaining is more
It is high.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is that the coil of strip of fabrication evaluation point in hot cold rolling producing line provided in an embodiment of the present invention starts over time acquisition side
The schematic flow sheet of method.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is all other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Such as Fig. 1, the embodiment of the present invention provides a kind of coil of strip of fabrication evaluation point in hot cold rolling producing line and starts over the time and obtains
Method is taken, is comprised the following steps：
Step one, obtains time started T1 and end time T1 ' of the coil of strip through weld seam detection point；
Step 2, obtains coil of strip length L between weld seam detection point and the fabrication evaluation point of data to be obtained in producing line；
Step 3, if fabrication evaluation point is after the weld seam detection point, the acquisition coil of strip is after the T1
Real-time speed data, and calculate running length Lt of the coil of strip after the T1, the moment T during Lt=L is
Time started of the coil of strip through the fabrication evaluation point；Coil of strip real-time speed data in the T1 ' afterwards are obtained,
And coil of strip running length Lt ' in the T1 ' afterwards is calculated, the moment T ' during Lt '=L is the coil of strip and passes through
The end time of the fabrication evaluation point；
If the fabrication evaluation point is before the weld seam detection point, real-time speed of the coil of strip before the T1 is obtained
Degrees of data, and running length Lt of the coil of strip before the T1 is calculated, the moment T during Lt=L is the coil of strip
Through the time started of the fabrication evaluation point；Real-time speed data of the coil of strip before the T1 ' are obtained, and calculates institute
Running length Lt ' of the coil of strip before the T1 ' is stated, the moment T ' during Lt '=L is the coil of strip through the technique
The end time of test point.
In said method, the coil of strip of described fabrication evaluation point starts over the time and examines through the technique for the steel coil head
The moment of measuring point and coil of strip afterbody pass through the moment of the fabrication evaluation point.The present embodiment with the coil of strip of weld seam detection point by being started
On the basis of end time, and calculated forward or backward by the Real-time process parameter in producing line judge coil of strip through correspondence fabrication evaluation
The coil of strip of point starts over the time, can effectively improve the degree of accuracy of the result data of acquisition.Certainly, may be based on producing line head
The coil of strip of (uncoiler) or afterbody (coiling machine) starts over the time, and is counted forward or backward by the Real-time process parameter in producing line
Calculation judges that coil of strip starts over the time through the coil of strip of correspondence fabrication evaluation point, but due to producing line head-tail and each fabrication evaluation point
Distance relatively far away from, on the one hand, for the producing line that there is kink, it is considered to the set amount of kink is different and kink before and after coil of strip speed
Degree is different, and producing line head-tail is more remote with the distance of each fabrication evaluation point, and the kink quantity being related to is more, and calculation error is bigger；
On the other hand, because coil of strip is in tensioning state in producing line, each section of coil of strip elongation percentage is variant in producing line, misses for calculating
Difference also has a certain impact, and producing line head-tail is more remote with the distance of each fabrication evaluation point, and calculation error is bigger.In the present embodiment,
It is closer to the distance with each fabrication evaluation point because weld seam detection point is located at hot cold rolling producing line central region, thus the result for obtaining
The degree of accuracy of data is higher.
Further, such as Fig. 1, in step one, the acquisition methods of the T1 include：
The coil of strip is obtained through uncoiler or the time started Ts of coiling machine, and judges that the Ts is the correspondence uncoiling
Machine still corresponds to the coiling machine, that is, judge that above-mentioned Ts is coil of strip through the time started of uncoiler or passes through through crimping machine
Time started；
If the corresponding uncoilers of the Ts, the T1 is that first weld seam of the weld seam detection point after the Ts is touched
The time of sending out, i.e., searched backward first weld seam triggered time on the basis of the Ts times；
If the Ts correspondence coiling machine, the T1 is first weld seam triggered time before the Ts, i.e., with
Search first weld seam triggered time on the basis of the Ts times backward.
The above-mentioned weld seam triggered time is the time that weld seam detection point detects weld seam on coil of strip.
Correspondingly, in step one, the acquisition methods of the T1 ' can be identical with the acquisition methods of above-mentioned T1, specifically, its bag
Include：
The coil of strip is obtained through uncoiler or the end time Te of coiling machine, and judges that the Te is the correspondence uncoiling
Machine still corresponds to the coiling machine；
If the corresponding uncoilers of the Te, the T1 ' is first weld seam of the weld seam detection point after the Te
Triggered time；
If the corresponding coiling machines of the Te, the T1 ' is first weld seam triggered time before the Te.
In addition, the present embodiment also provides the acquisition methods of another T1 '：Due to the part end to end of a certain coil of strip in producing line
Not Dui Ying a weld seam, therefore, it is possible to above-mentioned T1 is obtained further obtain on the basis of result T1 ', i.e.,：It is described in step one
The acquisition methods of T1 ' include：
If the corresponding uncoilers of the Ts, the T1 ' is first weld seam triggered time after the T1；
If the corresponding crimping machines of the Ts, the T1 ' is first weld seam triggered time before the T1.
Further, in step 2, the acquisition methods of the L include：
Determine kink quantity n between the weld seam detection point and fabrication evaluation point；
If n=0, the L is the distance between the weld seam detection point and described fabrication evaluation point；
If n ＞ 0, distance section is with the kink of the weld seam detection point, fabrication evaluation point and the n
Point, then the set amount sum of each kinks of the L=+each adjacent two are apart from the distance between node sum.
For ease of searching above-mentioned each adjacent two in the distance between node, step 2, the acquisition methods of the L are also wrapped
Include：
Set up apart from node parameter table, write each adjacent two is apart from the distance between node data and the reality of each kink
When set amount data, wherein, with the range data be on the occasion of represent the fabrication evaluation point be located at the weld seam detection point after,
Represent that the fabrication evaluation point is located at before the weld seam detection point as negative value with the range data.When the L need to be obtained,
Related data is searched in the node parameter table.
Further, in the table apart from node parameter, control each adjacent two steel between node of write
The real-time speed data of volume；In step 3, the real-time speed data of the coil of strip are searched in the node parameter table.Typically
Ground, due to the needs of coil of strip tensioning, the adjacent two coil of strip speed between node are consistent, thus above-mentioned real-time speed numbers
According to the correspondence with time interval, by corresponding time interval and corresponding real-time speed data, by calculating
Above-mentioned coil of strip running length Lt is obtained, so as to compare the Lt with the L as judgment standard, corresponding fabrication evaluation is obtained
The coil of strip time started and end time of point.
In the present embodiment, time acquisition side is started over by the coil of strip of fabrication evaluation point in above-mentioned hot cold rolling producing line
Method, obtains a certain coil of strip through the time started and end time of a certain fabrication evaluation point, and then obtains the related work of the coil of strip
Skill parameter；By said method, beginning of certain a batch of each coil of strip by some or certain several fabrication evaluation points can be obtained
Time and end time, so as to obtain the related process parameters of each coil of strip of the batch, with reference to related process standard to corresponding
Technique is analyzed, and reaches the purpose of technique calibration, improves production efficiency and product quality.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (7)
1. the coil of strip of fabrication evaluation point starts over time obtaining method in a kind of hot cold rolling producing line, it is characterised in that include with
Lower step：
Step one, obtains time started T1 and end time T1 ' of the coil of strip through weld seam detection point；
Step 2, obtains coil of strip length L between weld seam detection point and the fabrication evaluation point of data to be obtained in producing line；
Step 3, if fabrication evaluation point is after the weld seam detection point, obtains reality of the coil of strip after the T1
When speed data, and calculate running length Lt of the coil of strip after the T1, the moment T during Lt=L is described
Time started of the coil of strip through the fabrication evaluation point；Coil of strip real-time speed data in the T1 ' afterwards are obtained, and is counted
Coil of strip running length Lt ' in the T1 ' afterwards is calculated, the moment T ' during Lt '=L is the coil of strip through described
The end time of fabrication evaluation point；
If the fabrication evaluation point is before the weld seam detection point, real-time speed number of the coil of strip before the T1 is obtained
According to, and running length Lt of the coil of strip before the T1 is calculated, the moment T during Lt=L is the coil of strip and passes through
The time started of the fabrication evaluation point；Real-time speed data of the coil of strip before the T1 ' are obtained, and calculates the steel
Running length Lt ' of the volume before the T1 ', the moment T ' during Lt '=L are the coil of strip through the fabrication evaluation
The end time of point.
2. the coil of strip of fabrication evaluation point starts over time obtaining method in hot cold rolling producing line as claimed in claim 1, and it is special
Levy and be, in step one, the acquisition methods of the T1 include：
The coil of strip is obtained through uncoiler or the time started Ts of coiling machine, and judges that the Ts is to correspond to the uncoiler also
It is the correspondence coiling machine；
If the corresponding uncoilers of the Ts, when the T1 is that first weld seam of the weld seam detection point after the Ts is triggered
Between；
If the corresponding coiling machines of the Ts, the T1 is first weld seam triggered time before the Ts.
3. the coil of strip of fabrication evaluation point starts over time obtaining method in hot cold rolling producing line as claimed in claim 2, and it is special
Levy and be, in step one, the acquisition methods of the T1 ' include：
If the corresponding uncoilers of the Ts, the T1 ' is first weld seam triggered time after the T1；
If the corresponding crimping machines of the Ts, the T1 ' is first weld seam triggered time before the T1.
4. the coil of strip of fabrication evaluation point starts over time obtaining method in hot cold rolling producing line as claimed in claim 2, and it is special
Levy and be, in step one, the acquisition methods of the T1 ' include：
The coil of strip is obtained through uncoiler or the end time Te of coiling machine, and judges that the Te is to correspond to the uncoiler also
It is the correspondence coiling machine；
If the corresponding uncoilers of the Te, the T1 ' is first weld seam triggering of the weld seam detection point after the Te
Time；
If the corresponding coiling machines of the Te, the T1 ' is first weld seam triggered time before the Te.
5. the coil of strip of fabrication evaluation point starts over time obtaining method in hot cold rolling producing line as claimed in claim 1, and it is special
Levy and be, in step 2, the acquisition methods of the L include：
Determine kink quantity n between the weld seam detection point and fabrication evaluation point；
If n=0, the L is the distance between the weld seam detection point and described fabrication evaluation point；
If n ＞ 0, it is apart from node with the kink of the weld seam detection point, fabrication evaluation point and the n, then
Set amount sum+each adjacent two of each kink of the L=are apart from the distance between node sum.
6. the coil of strip of fabrication evaluation point starts over time obtaining method in hot cold rolling producing line as claimed in claim 5, and it is special
Levy and be, in step 2, the acquisition methods of the L also include：
Set up apart from node parameter table, write each adjacent two is apart from the distance between node data and the real-time set of each kink
Amount data, wherein, it is on the occasion of representing the fabrication evaluation point after the weld seam detection point, with institute with the range data
State range data and represent that the fabrication evaluation point is located at before the weld seam detection point for negative value；
When the L need to be obtained, in the node parameter table related data is searched.
7. the coil of strip of fabrication evaluation point starts over time obtaining method in hot cold rolling producing line as claimed in claim 6, and it is special
Levy and be, in the table apart from node parameter, the real-time speed of control each adjacent two coil of strips between node of write
Degrees of data；
In step 3, the real-time speed data of the coil of strip are searched in the node parameter table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070025.4A CN106623446B (en) | 2016-11-29 | 2016-11-29 | The coil of strip of fabrication evaluation point starts over time obtaining method on hot rolling mill production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070025.4A CN106623446B (en) | 2016-11-29 | 2016-11-29 | The coil of strip of fabrication evaluation point starts over time obtaining method on hot rolling mill production line |
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| CN106623446A true CN106623446A (en) | 2017-05-10 |
| CN106623446B CN106623446B (en) | 2018-05-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367549A (en) * | 2022-01-13 | 2022-04-19 | 广东韶钢松山股份有限公司 | Method for detecting speed of rod and wire rolled piece |
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| JPS54136559A (en) * | 1978-04-17 | 1979-10-23 | Kawasaki Steel Corp | Method and apparatus for detecting slip of rolled strip material |
| JPH1029007A (en) * | 1996-07-17 | 1998-02-03 | Toshiba Corp | Instrument for detecting roll slip of steel strip rolling mill |
| CN101745552A (en) * | 2008-11-28 | 2010-06-23 | 上海宝钢工业检测公司 | Method for detecting scratch position of strip steel |
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