CN103234458A - Blank length measuring device and measuring method thereof - Google Patents
Blank length measuring device and measuring method thereof Download PDFInfo
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- CN103234458A CN103234458A CN2013101457185A CN201310145718A CN103234458A CN 103234458 A CN103234458 A CN 103234458A CN 2013101457185 A CN2013101457185 A CN 2013101457185A CN 201310145718 A CN201310145718 A CN 201310145718A CN 103234458 A CN103234458 A CN 103234458A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000005272 metallurgy Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005693 optoelectronics Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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Abstract
The invention relates to the technical field of metallurgy, in particular to a blank length measuring device, which comprises: the device comprises a first distance measuring unit, a second distance measuring unit, a third distance measuring unit, a fourth distance measuring unit, a control unit and an upper computer used for providing blank length specification parameters. The first distance measuring unit, the second distance measuring unit, the third distance measuring unit and the fourth distance measuring unit are respectively connected with the control unit. The first distance measuring unit and the third distance measuring unit are respectively aligned with the front end of the blank. The second distance measuring unit and the fourth distance measuring unit are respectively aligned with the rear end of the blank. The control unit is connected with the upper computer. The invention also provides a measuring method of the blank length measuring device, and the length of the blank is calculated through the distance and angle relation between the distance measuring unit and the blank. According to the blank length measuring device and the blank length measuring method, the obtained blank length can reduce errors caused by the measurement of the blank length due to the fact that the blank inclines left and right, and the measured value of the blank length is closer to a true value.
Description
Technical field
The present invention relates to metallurgical technology field, particularly a kind of blank measuring motion and measuring method thereof.
Background technology
At present, smelter hot rolling both at home and abroad adopts the double material of long and short base to advance the walking beam heating furnace of stove type of heating usually, and the blank that uses is the steel-making continuous casting slab.For the safe operation of heating furnace, prevent the defective blank heating furnace of packing into, need go into the stokehold at blank and carry out linear measure longimetry.Existing charge length measurement mechanism, a kind of is that the optoelectronic switch of installing with different spacing in the rollgang both sides detects the residing scope of blank, judges the big body length of blank, and this kind method needs many group optoelectronic switches when complicated for the blank specification, measuring accuracy is poor, and cost is bigger.Another is exactly to adopt two displacement transducers to align with the front and back end of blank respectively, calculate the length of blank by the distance between displacement transducer and the blank and angular relationship, there is shortcoming in this kind linear measure longimetry mode: when blank is transmitting roller-way and tilts, the charge length of calculating is inaccurate, when the minimum blank integral body of width is offset to rollgang one side, deflect away from the measured zone of displacement transducer, charge length can't record.
Summary of the invention
Technical matters to be solved by this invention provides and a kind ofly can be offset to that rollgang one rear flank or blank tilt or when being offset, still can accurately measure blank measuring motion and the measuring method thereof of the charge length of specification complexity at blank.
For solving the problems of the technologies described above, the invention provides a kind of blank measuring motion, comprising: first range cells, second range cells, the 3rd range cells, the 4th range cells, control module reach the host computer that is used for providing described charge length specifications parameter.Described first range cells, second range cells, the 3rd range cells and described the 4th range cells are connected with described control module respectively.Described first range cells and described the 3rd range cells are alignd with the front end of described blank respectively; Described second range cells and described the 4th range cells are alignd with the rear end of described blank respectively.Described control module is connected with described host computer.
Further, also comprise display unit; Described display unit is connected with described control module.
Further, described display unit is HMI equipment.
Further, described first range cells, second range cells, the 3rd range cells and/or described the 4th range cells are contactless diffuse reflection laser range sensor.
Further, the interface mode between described first range cells, second range cells, the 3rd range cells and described the 4th range cells and the described control module is 4-20mA current signal form or PROFIBUS-DP bus form.
Further, described control module is connected with described display unit by Ethernet; Described control module is connected with described host computer by Ethernet.
Further, described control module is PLC.
The present invention also provides a kind of measuring method of blank measuring motion, comprise: measure described first range cells the projection on the described blank center line and described second range cells in the distance L between the projection on the described blank, measure projection and described four range cells the distance H projection described blank between of described the 3rd range cells on described blank center line, and the value of distance L and distance H is imported described control module.Described control module reads distance H 1 between distance L 2, the 3rd range cells and the described blank front end between distance L 1, second range cells and the described blank rear end between described first range cells and the described blank front end and the distance H 2 between described the 4th range cells and the described blank rear end.Measure angle γ between the angle β between the angle α between described first range cells and the described blank center line, described second range cells and the described blank center line, described the 3rd range cells and the described blank center line and the angle δ between described the 4th range cells and the described blank center line, and with the value Input Control Element of α, β, γ and δ.Described control module calculates the real-time length A=L-L1*cos α-L2*cos β of blank, and B=H-H1*cos γ-H2*cos δ, described control module filter out maximal value and the minimum value of described blank.Whether the length that described control module is judged described blank according to maximal value and the minimum value of described blank is qualified, underproof described blank is revoked, and result of determination is presented on the described display unit, will revoke blank information simultaneously and send to described host computer.
Blank measuring motion provided by the invention and measuring method thereof, four range cells have been adopted in the measuring motion, four range cells are divided into two groups and record two length values of same blank, filter out maximal value and the minimum value of charge length, this measuring motion and measuring method thereof can be when blank tilt or be offset, still can accurately measure the charge length of specification complexity, make measured value to charge length more close to actual value; Simultaneously, adopt four range cells, increased the measured zone of range cells, when blank is offset to rollgang one rear flank, still can measure the length of blank.
Description of drawings
The blank measuring motion structural representation that Fig. 1 provides for the embodiment of the invention.
Fig. 2 concerns synoptic diagram for the position of the blank measuring motion that the embodiment of the invention provides.
Embodiment
Referring to Fig. 1 and Fig. 2, the embodiment of the invention provides a kind of blank measuring motion, comprising: first range cells 1, second range cells 2, the 3rd range cells 3, the 4th range cells 4, control module 6, be used for providing host computer 7 and the display unit 8 of described charge length specifications parameter.First range cells 1, second range cells 2, the 3rd range cells 3 and the 4th range cells 4 are connected with control module 6 respectively.First range cells 1 and the 3rd range cells 3 are alignd with the front end of blank 5 respectively, be specially: first range cells 1 and the 3rd range cells 3 respectively with the thickness direction of blank 5 front ends from the bottom up 1/3-2/3 align at the place, all thickness specification blanks can both be measured.Second range cells 2 and the 4th range cells 4 are alignd with the rear end of blank 5 respectively, be specially: second range cells 2 and the 4th range cells 4 respectively with the thickness direction of blank 5 rear ends from the bottom up 1/3-1/2 align at the place, all thickness specification blanks can both be measured.Control module 6 is connected with host computer 7 by Ethernet.Display unit 8 is connected with control module 6 by Ethernet.In the embodiment of the invention, display unit 8 is HMI equipment.First range cells 1, second range cells 2, the 3rd range cells 3 and/or the 4th range cells 4 are contactless diffuse reflection laser range sensor.Interface mode between first range cells 1, second range cells 2, the 3rd range cells 3 and the 4th range cells 4 and the control module 6 is 4-20mA current signal form or PROFIBUS-DP bus form.Control module 6 adopts PLC(Programmable Logic Controller, programmable logic controller (PLC)).
The embodiment of the invention also provides a kind of blank measuring method, comprising:
Step 1: measure first range cells 1 the projection on blank 5 center lines and second range cells 2 in the distance L between the projection on the blank 5, measure projection and four range cells 4 the distance H projection blank 5 between of the 3rd range cells 3 on blank 5 center lines, and with the value Input Control Element 6 of distance L and distance H;
Step 2: control module 6 reads distance H 1 between distance L 2, the 3rd range cells 3 and blank 5 front ends between distance L 1, second range cells 2 and blank 5 rear ends between first range cells 1 and blank 5 front ends and the distance H 2 between the 4th range cells 4 and blank 5 rear ends;
Step 3: measure angle γ between angle β, the 3rd range cells 3 and blank 5 center lines between angle α, second range cells 2 and blank 5 center lines between first range cells 1 and blank 5 center lines and the angle δ between the 4th range cells 4 and blank 5 center lines, and with the value Input Control Element 6 of α, β, γ and δ;
Step 4: control module 6 calculates the real-time length A=L-L1*cos α-L2*cos β of blank 5, and B=H-H1*cos γ-H2*cos δ, control module 6 filter out maximal value and the minimum value of blank 5;
Step 5: control module 6 judges according to maximal value and the minimum value of blank 5 whether the length of blank 5 is qualified, underproof blank 5 revoked, and result of determination is presented on the display unit 8, will revoke blank information simultaneously and send to described host computer 7.For example, hot rolling production technology regulation blank 5 specifications are: short base is 4.5-5.3m, and long base is 9-11m, and thickness is 0.23m, and width is 0.85-1.65m.Have only two vertical beams to support short blank 5 in the heating furnace, if the maximum length of blank 5 less than 4.5m, causes blank 5 to turn on one's side in stove or drop easily; And heating furnace burner hearth effective width 11.7m, when blank 5 minimum lengths greater than 11m, then can cause blank 5 can not put into heating furnace or the bump furnace wall.Actual measured value and specifications parameter by blank 5 length compare judgement, just can determine current blank 5 and be qualified short base, qualified long base or defective blank, defective blank are revoked the heating furnace of will not packing into from rollgang.
Blank measuring motion and measuring method thereof that the embodiment of the invention provides, four range cells have been adopted in the blank measuring motion, four range cells are divided into two groups and record two length values of same blank, filter out maximal value and the minimum value of blank 5 length, calculate the mean value of blank 5 length at last, resulting blank 5 length of this measuring motion and measuring method thereof can reduce the error that tilts blank 5 measurement of lengths are caused because of blank 5, make to blank 5 measurement of length values more close to actual value.Simultaneously, maximal value and the minimum value of measured blank 5 length can show synchronously at display unit, make things convenient for the staff to monitor, and will revoke blank information simultaneously and send to described host computer 7.
The embodiment of the invention has following beneficial effect:
1, four range cells have been adopted in the blank measuring motion, four range cells are divided into two groups and record two length values of same blank, filter out maximal value and the minimum value of charge length, the resulting charge length of this measuring motion and measuring method thereof can reduce because of the blank error that measurement to charge length causes that tilts, and makes measured value to charge length more close to actual value.
2, adopt four range cells, increased the measured zone of range cells, when blank is offset to rollgang one rear flank, still can measure the length of blank.
3, the maximal value of measured charge length and minimum value can show synchronously at display unit, make things convenient for the staff to monitor.
4, simple in structure, cost is lower, is convenient to implement in a large number in commercial production.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to example the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (8)
1. blank measuring motion, it is characterized in that, comprising: first range cells (1), second range cells (2), the 3rd range cells (3), the 4th range cells (4), control module (6) reach the host computer (7) that is used for providing described charge length specifications parameter;
Described first range cells (1), second range cells (2), the 3rd range cells (3) and described the 4th range cells (4) are connected with described control module (6) respectively;
Described first range cells (1) and described the 3rd range cells (3) are alignd with the front end of described blank (5) respectively; Described second range cells (2) and described the 4th range cells (4) are alignd with the rear end of described blank (5) respectively;
Described control module (6) is connected with described host computer (7).
2. blank measuring motion according to claim 1 is characterized in that, also comprises display unit (8); Described display unit (8) is connected with described control module (6).
3. blank measuring motion according to claim 2 is characterized in that, described display unit (8) is HMI equipment.
4. blank measuring motion according to claim 1, it is characterized in that described first range cells (1), second range cells (2), the 3rd range cells (3) and/or described the 4th range cells (4) are contactless diffuse reflection laser range sensor.
5. blank measuring motion according to claim 1, it is characterized in that the interface mode between described first range cells (1), second range cells (2), the 3rd range cells (3) and described the 4th range cells (4) and the described control module (6) is 4-20mA current signal form or PROFIBUS-DP bus form.
6. blank according to claim 1 is surveyed long unit, it is characterized in that described control module (6) is connected with described display unit (8) by Ethernet; Described control module (6) is connected with described host computer (7) by Ethernet.
7. blank measuring motion according to claim 1 is characterized in that, described control module (6) is PLC.
8. a blank measuring method is characterized in that, comprising:
Measure described first range cells (1) the projection on described blank (5) center line and described second range cells (2) in the distance L between the projection on the described blank (5), measure projection and described four range cells (4) the distance H projection described blank (5) between of described the 3rd range cells (3) on described blank (5) center line, and the value of distance L and distance H is imported described control module (6);
Described control module (6) reads distance H 1 between distance L 2, the 3rd range cells (3) and described blank (5) front end between distance L 1, second range cells (2) and described blank (5) rear end between described first range cells (1) and described blank (5) front end and the distance H 2 between described the 4th range cells (4) and described blank (5) rear end;
Measure angle γ between angle β, described the 3rd range cells (3) and described blank (5) center line between angle α, described second range cells (2) and described blank (5) center line between described first range cells (1) and described blank (5) center line and the angle δ between described the 4th range cells (4) and described blank (5) center line;
Described control module (6) calculates the real-time length A=L-L1*cos α-L2*cos β of blank (5), B=H-H1*cos γ-H2*cos δ, and described control module (6) filters out maximal value and the minimum value of described blank (5);
Described control module (6) judges according to maximal value and the minimum value of described blank (5) whether the length of described blank (5) is qualified, and result of determination is presented on the described display unit (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101457185A CN103234458A (en) | 2013-04-24 | 2013-04-24 | Blank length measuring device and measuring method thereof |
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| CN2013101457185A CN103234458A (en) | 2013-04-24 | 2013-04-24 | Blank length measuring device and measuring method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154867A (en) * | 2014-08-21 | 2014-11-19 | 田志恒 | Measuring device and conveying device with measuring device |
| CN104772443A (en) * | 2015-04-09 | 2015-07-15 | 田志恒 | Fixed-length measurement system and method for continuous casting billet |
| CN106767448A (en) * | 2016-12-14 | 2017-05-31 | 广东天机工业智能系统有限公司 | Device for detecting length |
| CN108801154A (en) * | 2018-07-02 | 2018-11-13 | 中国计量科学研究院 | Using the measuring apparatus and method of the magnetostriction material in large of Double passage laser displacement method |
| CN109425329A (en) * | 2017-08-30 | 2019-03-05 | 宝山钢铁股份有限公司 | The detection method of slab sideslip offset in heating furnace |
| CN110196568A (en) * | 2018-02-26 | 2019-09-03 | 宝山钢铁股份有限公司 | The method of driving crawl slab |
| CN110285763A (en) * | 2019-07-23 | 2019-09-27 | 上海联达节能科技股份有限公司 | Steel billet dimension measurement system based on laser ranging system and metal detection device |
| CN112264982A (en) * | 2020-09-24 | 2021-01-26 | 彩虹集团有限公司 | Automatic length measuring and scribing device and method for plate blank |
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| JPH0611311A (en) * | 1992-06-25 | 1994-01-21 | Sumitomo Metal Ind Ltd | Instrument for measuring length of hot-rolled steel |
| CN101614529A (en) * | 2009-07-20 | 2009-12-30 | 北京科技大学 | A kind of method of on-line continuous monitoring appearance of continuous casting sheet billet |
| KR20120071445A (en) * | 2010-12-23 | 2012-07-03 | 주식회사 포스코 | Apparatus and method for meassuring length of sheet bars |
| CN102620663A (en) * | 2012-03-21 | 2012-08-01 | 莱芜钢铁集团有限公司 | Online hot-rolled strip blank length measuring device and using method thereof |
-
2013
- 2013-04-24 CN CN2013101457185A patent/CN103234458A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0611311A (en) * | 1992-06-25 | 1994-01-21 | Sumitomo Metal Ind Ltd | Instrument for measuring length of hot-rolled steel |
| CN101614529A (en) * | 2009-07-20 | 2009-12-30 | 北京科技大学 | A kind of method of on-line continuous monitoring appearance of continuous casting sheet billet |
| KR20120071445A (en) * | 2010-12-23 | 2012-07-03 | 주식회사 포스코 | Apparatus and method for meassuring length of sheet bars |
| CN102620663A (en) * | 2012-03-21 | 2012-08-01 | 莱芜钢铁集团有限公司 | Online hot-rolled strip blank length measuring device and using method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154867A (en) * | 2014-08-21 | 2014-11-19 | 田志恒 | Measuring device and conveying device with measuring device |
| CN104772443A (en) * | 2015-04-09 | 2015-07-15 | 田志恒 | Fixed-length measurement system and method for continuous casting billet |
| CN106767448A (en) * | 2016-12-14 | 2017-05-31 | 广东天机工业智能系统有限公司 | Device for detecting length |
| CN109425329A (en) * | 2017-08-30 | 2019-03-05 | 宝山钢铁股份有限公司 | The detection method of slab sideslip offset in heating furnace |
| CN110196568A (en) * | 2018-02-26 | 2019-09-03 | 宝山钢铁股份有限公司 | The method of driving crawl slab |
| CN108801154A (en) * | 2018-07-02 | 2018-11-13 | 中国计量科学研究院 | Using the measuring apparatus and method of the magnetostriction material in large of Double passage laser displacement method |
| CN110285763A (en) * | 2019-07-23 | 2019-09-27 | 上海联达节能科技股份有限公司 | Steel billet dimension measurement system based on laser ranging system and metal detection device |
| CN112264982A (en) * | 2020-09-24 | 2021-01-26 | 彩虹集团有限公司 | Automatic length measuring and scribing device and method for plate blank |
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Application publication date: 20130807 |