CN106077093B - Flying shear tail cutting precision control method and device - Google Patents
Flying shear tail cutting precision control method and device Download PDFInfo
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- CN106077093B CN106077093B CN201610457225.9A CN201610457225A CN106077093B CN 106077093 B CN106077093 B CN 106077093B CN 201610457225 A CN201610457225 A CN 201610457225A CN 106077093 B CN106077093 B CN 106077093B
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- strip
- value
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000005520 cutting process Methods 0.000 title abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- VOOFUNKBLIGEBY-AQRCPPRCSA-N (2s)-2-[[(2s)-2-[[(2s)-2-[[(2s)-5-amino-2-[[(2s)-5-amino-2-[[(2s)-2-amino-4-methylpentanoyl]amino]-5-oxopentanoyl]amino]-5-oxopentanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-3-phenylpropanoic acid Chemical compound CC(C)C[C@H](N)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)N[C@H](C(O)=O)CC1=CC=CC=C1 VOOFUNKBLIGEBY-AQRCPPRCSA-N 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 238000007664 blowing Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 14
- 238000005096 rolling process Methods 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 6
- 241000277275 Oncorhynchus mykiss Species 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 2
- 238000010008 shearing Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- 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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
- B21B45/08—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D25/00—Machines or arrangements for shearing stock while the latter is travelling otherwise than in the direction of the cut
- B23D25/02—Flying shearing machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
Abstract
The invention relates to the technical field of hot rolling, in particular to a control method and a device for tail cutting precision of flying shears, wherein the method comprises the following steps: when the tail part of the strip steel leaves the first hot metal detector, the speed V of the strip steel is obtained1And the speed V of the pinch roll below the inlet of the flying shearPR1(ii) a Calculating V1/VPR1Value of (a) if V1/VPR1If the value of (1) belongs to the interval of 0.95-1.05, keeping the current working state unchanged; if V1/VPR1Stopping the machine if the value of (1) is not within the range of 0.95-1.05; when the tail part of the strip steel leaves the second hot metal detector, the speed V of the pinch roll below the inlet of the flying shear is obtained and recordedPR2(ii) a Calculating and setting the tail cutting speed V of the flying shear2，V2＝V1/VPR1*VPR2. The device is composed of a first speed acquisition unit, a first data processing unit, a second speed acquisition unit and a second data processing unit. The method and the device for controlling the flying shear tail cutting precision can prevent overlarge deviation between the speed of the clamping roller below the flying shear inlet and the speed of the strip steel caused by factors such as inaccurate forward slip value and the like, improve the accuracy of the set value of the flying shear tail cutting speed, and improve the cutting precision.
Description
Technical field
The present invention relates to hot rolling technique field, more particularly to a kind of control method and device of flying shear back-end crop precision.
Background technology
The cutter of the operating rolled piece of lateral shear is called flying shear, is a kind of energy fast shut-off iron plate, steel pipe, paper roll
Process equipment, it is metallurgical Steel-rolling Industry, high-speed rod and screw-thread steel shearing machine with fixed length, is the production during modern rolled bar material is cut
Product, there is the characteristics of little power consumption, cost of investment is low.In the control system of flying shear shearing, flying shear back-end crop speed acquisition pickle line processor
Roller speed is pinched, descaling mill pinches roller speed and entrance velocity is calculated according to F1 rolling mill speeds and advancing slip value, enters what is obtained
Mouth speed is as pinch roller speed.In actual applications, often descaling mill pinch roll is fast caused by the factors such as advancing slip value inaccuracy
Degree and strip actual speed have deviation, are especially become apparent when changing the strip of thickness specification, cause back-end crop length unstable
Fixed, shear precision is too low.Meanwhile operating personnel, often in order to which rolling stability considers, what is given on HMI is cutting damage length ratio just
The big 30-150mm of constant value, cause to cut loss rate remaining high, influence rolling line lumber recovery.
The content of the invention
The embodiment of the present invention solves in the prior art by providing a kind of control method and device of flying shear back-end crop precision
The technical problem that flying shear back-end crop length is unstable, shear precision is low, make flying shear back-end crop stable operation, improve cutting for flying shear back-end crop
Cut precision.
The embodiments of the invention provide a kind of flying shear back-end crop accuracy control method, strip steel head before the flying shear entrance according to
It is secondary to include by the first thermometal detector and the second thermometal detector, methods described：
When tail part of band steel leaves the first thermometal detector, the speed V of the strip is obtained1And the flying shear enters
Roller speed V is pinched below mouthfulPR1；
Calculate V1/VPR1Value, if V1/VPR1Value belong to 0.95~1.05 section, then control the strip to keep current work
It is constant to make state；If V1/VPR1Value be not belonging to 0.95~1.05 section and then shut down；
When the afterbody of the strip leaves the second thermometal detector, obtain and record below the flying shear entrance
The speed V of pinch rollPR2；
Calculate and set the back-end crop speed V of the flying shear2, the V2=V1/VPR1*VPR2。
Further, the speed V of the strip1Determined by laser velocimeter.
Further, methods described also includes：Dispelled by being arranged at the air-blowing below the second thermometal detector
Steam and iron scale.
Further, methods described also includes：By setting axial flow blower to dispel the water smoke of the belt steel surface.
Further, methods described also includes：Blowback by being arranged at finish rolling descaling mill entrance is swept water installations stop and removed
Squama water overflows.
The embodiments of the invention provide a kind of flying shear back-end crop precision control device, strip steel head before the flying shear entrance according to
It is secondary to pass through the first thermometal detector and the second thermometal detector, it is characterised in that described device includes：
First Speed collecting unit, when tail part of band steel leaves the first thermometal detector, obtain the strip
Speed V1And roller speed V is pinched below the flying shear entrancePR1；
First data processing unit, the V is obtained from the First Speed collecting unit1And the VPR1Value, calculate V1/
VPR1Value, if V1/VPR1Value belong to 0.95~1.05 section, then control the strip to keep current operating state constant；If
V1/VPR1Value be not belonging to 0.95~1.05 section and then shut down；
Second speed collecting unit, when the afterbody of the strip leaves the second thermometal detector, obtain and remember
Record the speed V of pinch roll below the flying shear entrancePR2；
Second data processing unit, calculate and set the back-end crop speed V of the flying shear2, the V2=V1/VPR1*VPR2。
Further, described device also includes：Laser velocimeter, for determining the V1, and by the V1It is sent to described
First Speed collecting unit.
Further, described device also includes：
At least one set of air-blowing, the air-blowing are arranged on the lower section of the second thermometal detector.
Further, described device also includes：
At least one axial flow blower, the axial flow blower are used for the water smoke for dispelling the belt steel surface.
Further, described device also includes：
Water installations are swept at least one blowback, and the blowback sweeps water installations and is arranged on finish rolling descaling mill entrance.
One or more technical schemes provided in an embodiment of the present invention, at least possess following beneficial effect or advantage：
1st, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, setting Finite Amplitude section 0.95~
1.05, V during control flying shear shearing1/VPR1Value be located in amplitude limit section, by the speed V of strip1And below flying shear entrance
Pinch roller speed VPR1Speed difference control within the specific limits, prevent because under flying shear entrance caused by the factors such as advancing slip value inaccuracy
Side pinches roller speed VPR1With the speed V of strip1Deviation it is excessive, improve the accuracy of flying shear back-end crop speed setting value, make to fly
Tail stable operation is sheared, improves the shear precision of flying shear back-end crop.
2nd, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, the speed V of strip1Pass through laser
Tachymeter determines, and improves the accuracy of measured value.
3rd, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, in the second thermometal detector
Lower section is provided with air-blowing, for dispelling steam and iron scale, reduces steam, iron scale to the first thermometal detector and the
The interference of two thermometal detectors.
4th, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, are provided with axial flow blower, are used for
The steam of belt steel surface is dispelled, reduces interference of the steam to the first thermometal detector and the second thermometal detector.
5th, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, set in finish rolling descaling mill entrance
There is blowback to sweep water installations, for stopping that de-scaling water overflows, reduce steam, residual de-scaling water to the first thermometal detector and second
The interference of thermometal detector.
Brief description of the drawings
Fig. 1 is the control method flow chart of flying shear back-end crop precision provided in an embodiment of the present invention；
Fig. 2 is shear arrangement structural representation provided in an embodiment of the present invention.
Embodiment
The embodiment of the present invention solves in the prior art by providing a kind of control method and device of flying shear back-end crop precision
The technical problem that flying shear back-end crop length is unstable, shear precision is low, make flying shear back-end crop stable operation, improve cutting for flying shear back-end crop
Cut precision.
Referring to Fig. 1 and Fig. 2, the embodiments of the invention provide a kind of flying shear back-end crop accuracy control method, before flying shear entrance
The first thermometal detector 1 and the second thermometal detector 2 are passed through in the head of strip 5 successively, and this method includes：
Step 10, when tail part of band steel leaves the first thermometal detector 1, obtain the speed V of strip1And the entrance of flying shear 4
The speed V of lower section pinch roll 3PR1。
The speed V of strip1Determined by laser velocimeter, improve the accuracy of measured value.
Step 20, calculate V1/VPR1Value, if V1/VPR1Value belong to 0.95~1.05 section, then control strip 5 keep work as
Preceding working condition is constant；If V1/VPR1Value be not belonging to 0.95~1.05 section and then shut down.
Step 30, when the afterbody of strip leaves the second thermometal detector 2, obtain and record under the entrance of flying shear 4
The speed V of square pinch roll 3PR2。
Step 40, the back-end crop speed V for calculating and setting flying shear 42, wherein V2=V1/VPR1*VPR2。
The back-end crop speed V of flying shear 42Calculating using pinch roll 3 below the entrance of flying shear 4 speed VPR2It is multiplied by limiting figure
V1/VPR1Obtain the back-end crop speed V of final flying shear 42, it is contemplated that the factor such as advancing slip value inaccuracy causes to press from both sides below the entrance of flying shear 4
Send the speed V of roller 3PR1With the speed V of strip1The excessive technical problem of deviation, by the speed of pinch roll 3 below the entrance of flying shear 4
VPR1With the speed V of strip1Deviation control within the specific limits, improve the back-end crop speed V of flying shear 42The accuracy of setting value.
Step 50, the air-blowing by being arranged at the lower section of the second thermometal detector 2 dispel steam and iron scale.
Air-blowing is used to dispel steam and iron scale, reduces steam, iron scale to the first thermometal detector 1 and second
The interference of thermometal detector 2.
Step 60, by setting axial flow blower to dispel the water smoke of belt steel surface.
Axial flow blower is used for the steam for dispelling belt steel surface, reduces steam to the first thermometal detector 1 and the second heat gold
Belong to the interference of detector 2.
Step 70, the blowback by being arranged at finish rolling descaling mill entrance sweep water installations and stop that de-scaling water overflows.
Blowback sweeps water installations and is used to stop that de-scaling water overflows, and reduces steam, residual de-scaling water to the first thermometal detector 1
And second thermometal detector 2 interference.
The embodiment of the present invention additionally provides a kind of flying shear back-end crop precision control device, the head of strip 5 before the entrance of flying shear 4 according to
It is secondary to include by the first thermometal detector 1 and the second thermometal detector 2, the device：
First Speed collecting unit, when tail part of band steel leaves the first thermometal detector 1, obtain the speed V of strip1And
The speed V of pinch roll 3 below the entrance of flying shear 4PR1。
First data processing unit, V is obtained from First Speed collecting unit1And VPR1Value, calculate V1/VPR1Value, if
V1/VPR1Value belong to 0.95~1.05 section, then control strip 5 keep current operating state it is constant；If V1/VPR1Value do not belong to
Then shut down in 0.95~1.05 section.
Second speed collecting unit, when the afterbody of strip leaves the second thermometal detector 2, obtain and record flying shear 4
The speed V of pinch roll 3 below entrancePR2。
Second data processing unit, calculate and set the back-end crop speed V of flying shear 42, wherein V2=V1/VPR1*VPR2。
Laser velocimeter, for determining V1, and by V1It is sent to First Speed collecting unit.
At least one set of air-blowing, air-blowing are arranged on the lower section of the second thermometal detector 2.
At least one axial flow blower, axial flow blower are used for the water smoke for dispelling belt steel surface.
Water installations are swept at least one blowback, and blowback sweeps water installations and is arranged on finish rolling descaling mill entrance.
Flying shear back-end crop accuracy control method provided by the invention and device are illustrated with reference to specific embodiment：
Embodiment 1：
Referring to Fig. 1 and Fig. 2, the control device of flying shear back-end crop precision includes First Speed collecting unit, the first data processing
Water dress is swept in unit, second speed collecting unit, the second data processing unit, laser velocimeter, air-blowing, axial flow blower and blowback
Put.Laser velocimeter is used for the speed for determining strip.Air-blowing, axial flow blower and blowback sweep water installations and set one respectively.Work as band
When steel afterbody leaves the first thermometal detector 1, First Speed collecting unit obtains the speed V of strip1For 0.50m/s and flying shear
The speed V of pinch roll 3 below 4 entrancesPR1For 0.51m/s.First data processing unit obtains V from First Speed collecting unit1And
VPR1Value, calculate V1/VPR1Value be 0.98m/s, V1/VPR1Value belong to 0.95~1.05 section, control strip 5 keeps current
Working condition is constant.When the afterbody of strip leaves the second thermometal detector 2, second speed collecting unit is obtained and recorded winged
Cut the speed V of pinch roll 3 below 4 entrancesPR2For 0.52m/s.Second data processing unit is according to V2=V1/VPR1*VPR2Calculate simultaneously
Set the back-end crop speed V of flying shear 42For 0.51m/s.
Embodiment 2：
Referring to Fig. 1 and Fig. 2, the control device of flying shear back-end crop precision includes First Speed collecting unit, the first data processing
Water dress is swept in unit, second speed collecting unit, the second data processing unit, laser velocimeter, air-blowing, axial flow blower and blowback
Put.Laser velocimeter is used for the speed for determining strip.Air-blowing, axial flow blower and blowback sweep water installations and set one respectively.Work as band
When steel afterbody leaves the first thermometal detector 1, First Speed collecting unit obtains the speed V of strip1For 0.62m/s and flying shear
The speed V of pinch roll 3 below 4 entrancesPR1For 0.64m/s.First data processing unit obtains V from First Speed collecting unit1And
VPR1Value, calculate V1/VPR1Value be 0.97, V1/VPR1Value belong to 0.95~1.05 section, control strip 5 keeps current work
It is constant to make state.When the afterbody of strip leaves the second thermometal detector 2, second speed collecting unit obtains and records flying shear
The speed V of pinch roll 3 below 4 entrancesPR2For 0.65m/s.Second data processing unit is according to V2=V1/VPR1*VPR2Calculate and set
Determine the back-end crop speed V of flying shear 42For 0.62m/s.
One or more technical schemes provided in an embodiment of the present invention, at least possess following beneficial effect：
First, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, Finite Amplitude section 0.95 is set
~1.05, V during control flying shear shearing1/VPR1Value be located in amplitude limit section, by the speed V of strip1And under flying shear entrance
Side pinches roller speed VPR1Speed difference control within the specific limits, prevent the flying shear entrance caused by the factors such as advancing slip value inaccuracy
Lower section pinches roller speed VPR1With the speed V of strip1Deviation it is excessive, improve the accuracy of flying shear back-end crop speed setting value, make
Flying shear back-end crop stable operation, improve the shear precision of flying shear back-end crop.
2nd, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, the speed V of strip1By swashing
Light kinemometer determines, and improves the accuracy of measured value.
3rd, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, in the second thermometal detector
Lower section be provided with air-blowing, for dispelling steam and iron scale, reduce steam, iron scale to the first thermometal detector and
The interference of second thermometal detector.
4th, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, are provided with axial flow blower, are used for
The steam of belt steel surface is dispelled, reduces interference of the steam to the first thermometal detector and the second thermometal detector.
5th, the control method and device of flying shear back-end crop precision provided in an embodiment of the present invention, set in finish rolling descaling mill entrance
It is equipped with blowback and sweeps water installations, for stopping that de-scaling water overflows, reduces steam, residual de-scaling water to the first thermometal detector and the
The interference of two thermometal detectors.
It should be noted last that above embodiment is merely illustrative of the technical solution of the present invention and unrestricted,
Although the present invention is described in detail with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent substitution, without departing from the spirit and scope of technical solution of the present invention, it all should cover
Among scope of the presently claimed invention.
Claims (10)
1. a kind of flying shear back-end crop accuracy control method, the strip steel head before the flying shear entrance detects by the first thermometal successively
Instrument and the second thermometal detector, it is characterised in that methods described includes：
When tail part of band steel leaves the first thermometal detector, the speed V of the strip is obtained1And under the flying shear entrance
Side pinches roller speed VPR1；
Calculate V1/VPR1Value, if V1/VPR1Value belong to 0.95~1.05 section, then control the strip to keep work at present shape
State is constant；If V1/VPR1Value be not belonging to 0.95~1.05 section and then shut down；
When the afterbody of the strip leaves the second thermometal detector, obtain and record pinch below the flying shear entrance
The speed V of rollerPR2；
Calculate and set the back-end crop speed V of the flying shear2, the V2=V1/VPR1*VPR2。
2. flying shear back-end crop accuracy control method as claimed in claim 1, it is characterised in that the speed V of the strip1By swashing
Light kinemometer determines.
3. flying shear back-end crop accuracy control method as claimed in claim 1 or 2, it is characterised in that methods described also includes：Pass through
It is arranged at the air-blowing below the second thermometal detector and dispels steam and iron scale.
4. flying shear back-end crop accuracy control method as claimed in claim 1 or 2, it is characterised in that methods described also includes：Pass through
Axial flow blower is set to dispel the water smoke of the belt steel surface.
5. flying shear back-end crop accuracy control method as claimed in claim 1 or 2, it is characterised in that methods described also includes：Pass through
Water installations stop de-scaling water spilling is swept in the blowback for being arranged at finish rolling descaling mill entrance.
6. a kind of flying shear back-end crop precision control device, the strip steel head before the flying shear entrance detects by the first thermometal successively
Instrument and the second thermometal detector, it is characterised in that described device includes：
First Speed collecting unit, when tail part of band steel leaves the first thermometal detector, obtain the speed V of the strip1
And roller speed V is pinched below the flying shear entrancePR1；
First data processing unit, the V is obtained from the First Speed collecting unit1And the VPR1Value, calculate V1/VPR1
Value, if V1/VPR1Value belong to 0.95~1.05 section, then control the strip to keep current operating state constant；If V1/
VPR1Value be not belonging to 0.95~1.05 section and then shut down；
Second speed collecting unit, when the afterbody of the strip leaves the second thermometal detector, obtain and record institute
State the speed V of pinch roll below flying shear entrancePR2；
Second data processing unit, calculate and set the back-end crop speed V of the flying shear2, the V2=V1/VPR1*VPR2。
7. flying shear back-end crop precision control device as claimed in claim 6, it is characterised in that described device also includes：Laser Measuring
Fast instrument, for determining the V1, and by the V1It is sent to the First Speed collecting unit.
8. flying shear back-end crop precision control device as claimed in claims 6 or 7, it is characterised in that described device also includes：
At least one set of air-blowing, the air-blowing are arranged on the lower section of the second thermometal detector.
9. flying shear back-end crop precision control device as claimed in claims 6 or 7, it is characterised in that described device also includes：
At least one axial flow blower, the axial flow blower are used for the water smoke for dispelling the belt steel surface.
10. flying shear back-end crop precision control device as claimed in claims 6 or 7, it is characterised in that described device also includes：
Water installations are swept at least one blowback, and the blowback sweeps water installations and is arranged on finish rolling descaling mill entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457225.9A CN106077093B (en) | 2016-06-22 | 2016-06-22 | Flying shear tail cutting precision control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457225.9A CN106077093B (en) | 2016-06-22 | 2016-06-22 | Flying shear tail cutting precision control method and device |
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| Publication Number | Publication Date |
|---|---|
| CN106077093A CN106077093A (en) | 2016-11-09 |
| CN106077093B true CN106077093B (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610457225.9A Active CN106077093B (en) | 2016-06-22 | 2016-06-22 | Flying shear tail cutting precision control method and device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153182A (en) * | 2019-07-03 | 2019-08-23 | 攀钢集团攀枝花钢钒有限公司 | Hot coil box for shearing strip head in hot continuous rolling and method for shearing strip head |
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|---|---|---|---|---|
| CN110314934B (en) * | 2018-03-30 | 2020-09-22 | 上海梅山钢铁股份有限公司 | Flying shear control method for cold rolling mill |
| CN111282995B (en) * | 2018-12-07 | 2021-05-14 | 宝山钢铁股份有限公司 | Control method for improving hot continuous rolling finish rolling strip steel flying shear shearing precision |
| CN109807179B (en) * | 2019-02-25 | 2020-12-04 | 河北普阳钢铁有限公司 | Device and method for preventing excessive head and tail cutting of flying shear |
| CN110064666B (en) * | 2019-03-21 | 2020-11-20 | 首钢京唐钢铁联合有限责任公司 | Strip steel head and tail shearing control method |
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