CN108422269A - A kind of strand movement speed accuracy control method - Google Patents
A kind of strand movement speed accuracy control method Download PDFInfo
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- CN108422269A CN108422269A CN201810173552.0A CN201810173552A CN108422269A CN 108422269 A CN108422269 A CN 108422269A CN 201810173552 A CN201810173552 A CN 201810173552A CN 108422269 A CN108422269 A CN 108422269A
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- strand
- speed
- roller
- measuring device
- rotary shaft
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/10—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting speed or number of revolutions
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- 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
- B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a kind of strands to move fast strand accuracy control method, it is carried out based on rotation beating type deburring machine, deburring machine includes at least the liftable rotary shaft of the band blade for transmitting the roller-way of strand, for removing flash removed, and each roller-way is respectively provided with speed measuring device and tests the speed；Along strand moving direction, at least three velocity measuring devices are arranged in interval successively between the roller-way and rotary shaft axle center of forefront；When closer from cutting point, using direct speed testing mode, strand position is determined by least three velocity measuring device, it is simple in structure effective, it solves the problems, such as to be not allowed because the reasons such as roller-way roll diameter change cause strand movement speed to measure, improves the reliability of measurement data；Meanwhile when from cutting point farther out, speed measuring device is respectively provided with using each roller-way and carries out indirect speed testing mode, reduces calculation amount, it is simple and quick.
Description
Technical field
The invention belongs to strand field of measuring technique, and in particular to measurement and control in continuous casting steel billet burr removal process
Method.
Background technology
Core process of the continuous casting as steel products, has decisive role to product quality, wherein how to solve continuous casting
Slab Burr Problem is even more the key element of Improving The Quality of Products.Slab burr is exactly during slab gas flame cuttiug in bottom
The high rigidity rigidity burr of formation.Burr go it is not clean, can with strand enter subsequent hot rolled process, roll is caused to damage,
The problems such as roll loses flesh occurs, shortens the service life of roll, increases considerably a ton steel spare parts cost.Simultaneously as burr master
To be impurity component, together with strand rolling strip can be caused the mass defects such as to scab, crack, being mingled with, greatly reduce
Strip lumber recovery.
Currently, be both at home and abroad generally removed strand burr using scraper type burr grinding machine, but it is ineffective, there are hairs
The problems such as thorn is bonded, is remained.For this purpose, there is the rotation beating type deburring machine of development at present, operation principle mainly utilizes knife
The centrifugal force of piece rotation is removed the burr of strand bottom.During entire deburring, strand movement speed and position
Accurately measurement it is most important.It is universal measurement mode to the mode that strand movement speed measures, that is, uses encoder pair
Electric machines for roller rotating speed measures, and then carries out mathematic(al) manipulation according to parameters such as roller diameters, is converted to the movement speed (strand of strand
It is contacted with roller-way and roller-way is relied on to be driven, so the linear velocity of roller table surface is strand movement speed).But it was actually using
It is found in journey, due to roller-way abrasion, casting blank bending etc., this kind of strand movement speed measurement method causes to cast there are error
Base deburring is incomplete.
Invention content
The technical problem to be solved by the present invention is to：A kind of strand movement speed accuracy control method is provided, realizes that strand moves
The accurate measurement of dynamic speed is solved the problems, such as to be not allowed because the reasons such as roller-way roll diameter change cause strand movement speed to measure, be improved
The reliability of measurement data realizes the Proper Match of strand shift position and rotating blade lifting time so that strand deburring
Rate reaches 99.99% or more.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of fast strand accuracy control method of strand movement, is carried out, the deburring based on rotation beating type deburring machine
Machine includes at least the liftable rotary shaft of the band blade for transmitting the roller-way of strand, for removing flash removed, and each roller-way is respectively provided with
Speed measuring device tests the speed；It is characterized in that：Along strand moving direction, between the roller-way and rotary shaft axle center of forefront successively
At least three velocity measuring devices of interval setting；
Before reaching the third speed measuring device nearest from the roller-way of forefront on strand head, tested the speed using each roller-way
Device tests the speed pattern, obtains strand speed V1；
When strand head reaches the third speed measuring device nearest from the roller-way of forefront, record reaches initial time
t1；
When strand head, which continues to move along, reaches second speed measuring device, record reaches initial time t2；And
Tachometric survey mode is first to test the speed pattern by each roller-way speed measuring device pattern switching that tests the speed at this time, is tested the speed in pattern first,
Strand movement speed V2For the horizontal distance c divided by initial time t of third speed measuring device and second speed measuring device2With
Initial time t1Difference, i.e.,
When strand head continues to move along and reaches First Speed measuring device, record reaches initial time t3, this
Shi Sudu measurement methods are carried out according to first pattern that tests the speed, and rotary shaft is begun to ramp up at this time；It tests the speed pattern in the second photoelectric tube
In, strand movement speed V3For the horizontal distance b divided by initial time t of second speed measuring device and First Speed measuring device3
With initial time t2Difference, i.e.,If First Speed measuring device and the horizontal distance of rotary shaft axis perpendicular line are
A, the peak of blade and the vertical distance of roller plane are d, then strand head is from First Speed measuring device is touched to most
The time of arrival rotary shaft axis perpendicular line is afterwardsWhen strand head is reached right over the axle center of rotary shaft, in order to go in time
Flash removed blade must be completely attached to strand bottom, then in order to which the retention time is consistent, surveyed when strand head reaches First Speed
Amount device arrives, and blade rotary shaft is begun to ramp up, and the rotary shaft rate of climb is
When detecting that rotary shaft reaches highest order, system starts the work band cutting blade deburring of timing rotary shaft, and works as
When cumulative time reaches the setting deburring time, rotary shaft is stopped rotating and fallen to be made knots with roller plane interval, underturner
Beam, system are automatically changeb to each roller-way speed measuring device and test the speed pattern.
Further, the speed measuring device of each roller-way setting is encoder；Velocity measuring device is photoelectric tube.
Further, the strand head arrival rate measuring device moment is to shelter from the photoelectric tube signal moment.
Further, three velocity measuring devices are set.
Further, annular blade is arranged in the exterior circumferential interval of rotary shaft, and vertically, the periphery of blade is knife
Piece peak.
Further, rotary shaft uses oil cylinder lifting gear.
Further, the value range of c is 20mm-50mm；Wherein the value range of b is 10mm-20mm；The value model of a
It encloses for 5mm-10mm.
Indirect speed testing mode is become direct speed testing mode by the present invention by the careless mistake of the existing measurement method of improvement as a result,
It is combined with indirect speed testing mode, economical and efficient, it is quickly accurate；
When closer from cutting point, using direct speed testing mode, setting third speed measuring device, second speed measure dress
It sets, First Speed measuring device, signal is blocked by photoelectric tube to determine strand position, and lift using the signal as rotary shaft
Enabling signal, it is simple in structure effectively, facilitate realization；It is designed with multigroup photoelectric tube in system, and utilizes first and second group of photoelectric tube
The time difference of signal triggering and distance are realized the preliminary surveying of strand movement speed, while being believed using second and third group of photoelectric tube
Number triggering time difference and distance, realize the accurate measurement of strand movement speed, solve because of reasons such as roller-way roll diameter changes
Cause strand movement speed to measure inaccurate problem, improves the reliability of measurement data；
Meanwhile when from cutting point farther out, using general indirect speed testing mode, reduce calculation amount, it is simple and quick；
Meanwhile accurately controlling strand movement and the realization of blade lifting distance, by the accurate measurement of strand movement speed,
And by the reasonable conversion of the parameters such as rotary shaft and roller plane distance, when realizing strand shift position with rotating blade lifting
Between Proper Match, so that strand deburring rate is increased to 99.99% or more.
Description of the drawings
Fig. 1 is the deburring machine layout of equipment that the method for the present invention is related to.
Fig. 2 is the control flow chart of control method of the present invention.
Reference numeral corresponds to as follows in Fig. 1-2：Roller-way 1, rotary shaft 2, blade 3, the first photoelectric tube 4, the second photoelectric tube 5,
Third photoelectric tube 6, strand 7, burr 8.
Specific implementation mode
The invention will be further described for 1-2 and embodiment below in conjunction with the accompanying drawings：
As shown in attached drawing 1, Fig. 2：The unhairing that the strand movement speed accuracy control method implemented according to the present invention is based on
It pierces machine equipment and includes at least roller-way 1, rotary shaft 2, blade 3, the first photoelectric tube 4, the second photoelectric tube 5, third photoelectric tube 6.Strand 7
By roller-way 1,7 lower section of strand is in the presence of the burr 8 for needing to remove.Each roller-way 1 is respectively provided with photoelectric encoder and tests the speed.
Deburring machine equipment forms and the course of work is as follows：Roller-way 1 is mainly rotated by itself to push strand 7 along roller-way
1 top roller plane moves forward；Rotary shaft 2 is arranged in 1 front interval setpoint distance of roller-way in forefront, and rotary shaft 2 is circumferential
Profile is provided with blade 3, and the periphery of blade 3 is d at a distance from roller plane, and below roller plane；Under rotary shaft 2
Side is designed with lifting cylinder, can push 3 integral elevating of rotary shaft 2 and blade.When strand 7 is close to 2 surface of rotary shaft, rotation
2 high speed rotation of axis generates larger centrifugal force with cutting blade 3, and make under the action of lifting cylinder blade 3 rise and with strand 7
The burr 8 of bottom contacts, and burr 8 is removed by centrifugal force.
Based on the equipment, method of the invention is as follows：
Along 7 moving direction of strand, at least three speed of interval setting between 2 axle center of roller-way 1 and rotary shaft of forefront
Measuring device, in the present embodiment, velocity measuring device are the first photoelectric tube 4, the second photoelectric tube 5, third photoelectric tube 6；Interval
Setpoint distance is：A is divided between first photoelectric tube 4 and rotary shaft 2, between the first photoelectric tube 4 and the second photoelectric tube 5 between be divided into
B, between the second photoelectric tube 5 and third photoelectric tube 6 between be divided into c, (a, b, c are the numerical value more than 0, unit mm).
1. the rotation of roller-way 1 drives strand 7 to be moved to 2 direction of rotary shaft, each roller-way encoder pair is used in moving process
1 motor speed of roller-way measures, and then carries out mathematic(al) manipulation according to roller diameter parameter, is converted to the movement speed V of strand 71(casting
Base contacts with roller-way and roller-way is relied on to be driven, so the linear velocity of roller table surface is strand movement speed)；
2. when 6 signal of third photoelectric tube is blocked, record blocks initial time t1；
3. when 5 signal of the second photoelectric tube is blocked, record blocks initial time t2；And the speed of system strand movement at this time
Degree measurement method is tested the speed by encoder to be switched to the first photoelectric tube and tests the speed pattern, in the first photoelectric tube tests the speed pattern：Third light
The horizontal distance of fulgurite 6 and the second photoelectric tube 5 is c, then strand movement speed at this time isWherein preferred c's takes
It is worth ranging from 20mm-50mm；
4. when strand 7 continues to move along and 4 signal of the first photoelectric tube is blocked, record blocks initial time t3, casting
Base movement speed is carried out according to the second photoelectric tube pattern that tests the speed, and rotary shaft 2 is begun to ramp up at this time.It tests the speed mould in the second photoelectric tube
In formula：The horizontal distance of second photoelectric tube 5 and the first photoelectric tube 4 is b, and strand movement speed is at this timeWherein b
Value range be 10mm-20mm；Since the horizontal distance of the first photoelectric tube 4 and 2 axis perpendicular line of rotary shaft is a, blade 3
The vertical distance of periphery and roller plane is d.And the movement speed of strand is V at this time3, then 7 head of strand is from touching
One photoelectric tube 4 to arrive at 2 axis perpendicular line of rotary shaft time beWherein the value range of a is 5mm-10mm.Due to strand
When 7 head reaches the surface of rotary shaft 2, blade 3 must be completely attached to 7 bottom of strand, then in order to which the retention time is consistent,
When strand 7, which blocks 4 signal of the first photoelectric tube, to be generated, system can send out instruction raising speed to the lifting cylinder of rotary shaft 2, then rotate
2 rate of climb of axis isI.e.
5. the sensor inside lifting cylinder detects that rotary shaft 2 reaches highest order, system starts timing and carries out
Deburring, and when the cumulative time reaching 0.5s, rotary shaft 2 is stopped rotating and fallen, underturner make to terminate, and system is from turn
Become encoder to test the speed, strand 7 moves on.
The present invention develops a kind of method that strand movement speed accurately measures as a result, and this method is blocked by photoelectric tube
Signal determines strand position, and the enabling signal that the signal is lifted as rotary shaft, it is simple in structure effectively；It is designed in system
There is multigroup photoelectric tube, and the time difference for utilizing first and second group of photoelectric tube signal to trigger and distance, realizes strand movement speed
Preliminary surveying, while the time difference for utilizing second and third group of photoelectric tube signal to trigger and distance, realize the essence of strand movement speed
It really measures, solves the problems, such as to be not allowed because the reasons such as roller-way roll diameter change cause strand movement speed to measure, improve measurement number
According to reliability；By the accurate measurement of strand movement speed, and pass through the reasonable of the parameters such as rotary shaft and roller plane distance
Conversion, realizes the Proper Match of strand shift position and rotating blade lifting time, strand deburring rate is made to be increased to
99.99% or more.
Claims (7)
1. a kind of fast strand accuracy control method of strand movement, is carried out, the deburring machine based on rotation beating type deburring machine
Including at least the liftable rotary shaft of the roller-way for transmitting strand, the band blade for removing flash removed, each roller-way is respectively provided with survey
Speed variator tests the speed；It is characterized in that：Along strand moving direction, between the roller-way and rotary shaft axle center of forefront successively between
Every at least three velocity measuring devices are arranged；
Before reaching the third speed measuring device nearest from the roller-way of forefront on strand head, using each roller-way speed measuring device
Test the speed pattern, obtains strand speed V1；
When strand head reaches the third speed measuring device nearest from the roller-way of forefront, record reaches initial time t1；
When strand head, which continues to move along, reaches second speed measuring device, record reaches initial time t2；And this speed per hour
Degree measurement method is first to test the speed pattern by each roller-way speed measuring device pattern switching that tests the speed, and is tested the speed in pattern first, strand moves
Dynamic speed V2For the horizontal distance c divided by initial time t of third speed measuring device and second speed measuring device2When with starting
Carve t1Difference, i.e.,
When strand head continues to move along and reaches First Speed measuring device, record reaches initial time t3, speed at this time
Measurement method is carried out according to first pattern that tests the speed, and rotary shaft is begun to ramp up at this time；In the second photoelectric tube tests the speed pattern, strand
Movement speed V3For the horizontal distance b divided by initial time t of second speed measuring device and First Speed measuring device3With starting
Moment t2Difference, i.e.,If First Speed measuring device and the horizontal distance of rotary shaft axis perpendicular line are a, blade
Peak and roller plane vertical distance be d, then strand head arrived to the end from First Speed measuring device is touched
The time of rotary shaft axis perpendicular line isWhen strand head is reached right over the axle center of rotary shaft, in order to remove flash removed in time
Blade must be completely attached to strand bottom, then in order to which the retention time is consistent, when strand head reaches First Speed measuring device
It arrives, blade rotary shaft is begun to ramp up, and the rotary shaft rate of climb is
When detecting that rotary shaft reaches highest order, system starts the work band cutting blade deburring of timing rotary shaft, and when accumulative
When time reaches the setting deburring time, rotary shaft is stopped rotating and fallen to be made to terminate with roller plane interval, underturner, is
System is automatically changeb to each roller-way speed measuring device and tests the speed pattern.
2. the fast strand accuracy control method of strand movement according to claim 1, it is characterised in that：The survey of each roller-way setting
Quick-mounting is set to encoder；Velocity measuring device is photoelectric tube.
3. the fast strand accuracy control method of strand movement according to claim 1, it is characterised in that：Strand head reaches speed
The measuring device moment is spent, is to shelter from the photoelectric tube signal moment.
4. the fast strand accuracy control method of strand movement according to claim 1, it is characterised in that：Three speed of setting are surveyed
Measure device.
5. the fast strand accuracy control method of strand movement according to claim 1 or 4, it is characterised in that：Outside rotary shaft
Portion is provided at circumferentially spaced annular blade, and vertically, the periphery of blade is blade peak.
6. the fast strand accuracy control method of strand movement according to claim 1, it is characterised in that：Rotary shaft uses oil cylinder
Lifting gear.
7. the fast strand accuracy control method of strand movement according to claim 1, it is characterised in that：The value range of c is
20mm-50mm；Wherein the value range of b is 10mm-20mm；The value range of a is 5mm-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173552.0A CN108422269B (en) | 2018-03-02 | 2018-03-02 | A kind of slab movement speed accuracy control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810173552.0A CN108422269B (en) | 2018-03-02 | 2018-03-02 | A kind of slab movement speed accuracy control method |
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| CN108422269A true CN108422269A (en) | 2018-08-21 |
| CN108422269B CN108422269B (en) | 2019-09-24 |
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| CN201810173552.0A Active CN108422269B (en) | 2018-03-02 | 2018-03-02 | A kind of slab movement speed accuracy control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408775A (en) * | 2020-05-07 | 2020-07-14 | 山东钢铁股份有限公司 | Rotary milling cutter type steel billet cutting end surface residue removing device |
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| JPS59110548A (en) * | 1982-12-17 | 1984-06-26 | Toshiba Corp | Finishing device |
| CN101602097A (en) * | 2009-07-20 | 2009-12-16 | 攀枝花新钢钒股份有限公司 | A kind of continuous casting billet movement parameter detection apparatus and method |
| CN201684920U (en) * | 2010-05-07 | 2010-12-29 | 武汉钢铁(集团)公司 | Continuous casting burr removing device capable of detecting burrs |
| CN204235498U (en) * | 2014-11-20 | 2015-04-01 | 武汉钢铁(集团)公司 | Motor for casting blank deburring machine takes over ring flange to middle regulator |
| CN105171552A (en) * | 2015-09-21 | 2015-12-23 | 武汉钢铁(集团)公司 | Method and device for removing burrs at bottom of bent casting blank on continuous casting machine |
| CN105215057B (en) * | 2014-06-27 | 2017-04-26 | 宝山钢铁股份有限公司 | Control method of medium-thickness plate rolling and conveying speed |
| CN107561303A (en) * | 2017-10-19 | 2018-01-09 | 商丘师范学院 | Two point Linear-speed measuring instrument sensor erecting bed and double dotted line speed measurement method |
| JP2018069311A (en) * | 2016-11-02 | 2018-05-10 | ダイヤモンドエンジニアリング株式会社 | Apparatus for rotating and holding columnar steel piece and deburring system using the same |
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2018
- 2018-03-02 CN CN201810173552.0A patent/CN108422269B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59110548A (en) * | 1982-12-17 | 1984-06-26 | Toshiba Corp | Finishing device |
| CN101602097A (en) * | 2009-07-20 | 2009-12-16 | 攀枝花新钢钒股份有限公司 | A kind of continuous casting billet movement parameter detection apparatus and method |
| CN201684920U (en) * | 2010-05-07 | 2010-12-29 | 武汉钢铁(集团)公司 | Continuous casting burr removing device capable of detecting burrs |
| CN105215057B (en) * | 2014-06-27 | 2017-04-26 | 宝山钢铁股份有限公司 | Control method of medium-thickness plate rolling and conveying speed |
| CN204235498U (en) * | 2014-11-20 | 2015-04-01 | 武汉钢铁(集团)公司 | Motor for casting blank deburring machine takes over ring flange to middle regulator |
| CN105171552A (en) * | 2015-09-21 | 2015-12-23 | 武汉钢铁(集团)公司 | Method and device for removing burrs at bottom of bent casting blank on continuous casting machine |
| JP2018069311A (en) * | 2016-11-02 | 2018-05-10 | ダイヤモンドエンジニアリング株式会社 | Apparatus for rotating and holding columnar steel piece and deburring system using the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111408775A (en) * | 2020-05-07 | 2020-07-14 | 山东钢铁股份有限公司 | Rotary milling cutter type steel billet cutting end surface residue removing device |
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| CN108422269B (en) | 2019-09-24 |
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