CN108664048A - Slab deburring optimal control method based on momentum model - Google Patents
Slab deburring optimal control method based on momentum model Download PDFInfo
- Publication number
- CN108664048A CN108664048A CN201810289271.1A CN201810289271A CN108664048A CN 108664048 A CN108664048 A CN 108664048A CN 201810289271 A CN201810289271 A CN 201810289271A CN 108664048 A CN108664048 A CN 108664048A
- Authority
- CN
- China
- Prior art keywords
- slab
- deburring
- burr
- roller
- momentum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Milling, Broaching, Filing, Reaming, And Others (AREA)
- Forging (AREA)
Abstract
The slab deburring optimal control method based on momentum model that the invention discloses a kind of, includes the following steps：S1, when fire cut machine carry out all two or all three after, tensile strength sigma, width W, the weight M information under the slab Current Temperatures after cutting are descended into two tangent control systems；S2, two tangent control systems calculate slab movement velocity V by momentum model0, slab movement velocity V0Make slab generation that the burr on slab can only be made to fall off required momentum by way of shock；S3, two tangent control systems determine the deburring pattern of slab and deburring pattern are issued deburring machine；S4, two tangent control systems are with slab movement velocity V0Roller-way rotating speed is controlled, deburring machine executes decaptitating according to deburring pattern in a manner of hitting, truncate or goes step end to end.The present invention uses the deburring mode based on momentum, simplifies debarring process, improves deburring machine production capacity, and reduce maintenance cost and energy consumption.
Description
Technical field
The invention belongs to metallurgical technical fields, and in particular to a kind of cut deal base removes slab head-tail hair before the rolling
The production technology of thorn.
Background technology
When slab is cut, the scum that slab slot melts forms burr, and burr residual can cause to generate in rolling
Surface of steel plate foreign matter is pressed into defect.It is pressed into defect in order to reduce burr residual, reduce surface of steel plate foreign matter, deburring machine is must not
The equipment that can lack.Deburring machine is mounted on two tangent line region of Thick Plate Plant, is mainly used for removal fire and cuts slab head, the tail that machine-cut is cut
The burr of portion or head-tail, you are pressed into defect to reduce burr residual, reduce surface of steel plate foreign matter.
Its debarring process control of the deburring machine of GeGa companies is excessively cumbersome, while the maintenance of equipment is larger, both limits
The production capacity of deburring machine processed need to spend higher maintenance cost again.
As shown in Figure 1, when removing slab burr, two tangent line systems will be logical to go the deburring machine master control flow of GeGa companies
Burr pattern issues deburring machine, and request deburring region roller-way controls ownership (only after deburring machine receives deburring pattern
Roller-way positive and negative rotation can be controlled, roller table speed cannot be changed), deburring machine returns deburring region roller-way control institute after having removed burr
It has the right, concurrently sends to burring machine and complete deburring signal.
With putting into serial production for Zhanjiang steel Thick Plate Plant, improving production capacity becomes the target that Thick Plate Plant entirety is manually struggled, but
Since Thick Plate Plant deburring machine belongs to resettlement equipment, is designed and come into operation by GeGa companies within 08 year, debarring process flow
It is required that control accuracy is high, for example, when removing head burr, it is more than burr roller 30cm's to need slab head being transported to first
Position, it is no more than too many, can not be very little, precision is controlled by grating, then again accommodates swing arm, while swing arm
Roller-way operates, to reach deburring effect.There is the control of a set of protection swing arm to ensure that swing arm will not ride on the steel plate
Method, therefore this complete equipment has more grating and limit, increases the maintenance of deburring machine.Meanwhile underturner
Skill approximately as：1. swing arm swings to home and awaits orders；2. slab is transported to some fixed position and is stopped；3. swing arm is accommodated
Push slab；4. roller-way drives slab movement, flash removed is gone by swing arm and roller table speed；5. slab stops after completing deburring
Only, swing arm swings to home；6. slab is carried out burring machine region roller-way by roller-way；Excessively technological process is cumbersome for this, and
And period slab will stop and wait for swing arm in place, deburring efficiency is low, seriously dragged down two tangent line overall throughputs.
Above-mentioned discussion content purpose is may be each with the present invention for being described below and/or advocating to reader's introduction
The various aspects of a relevant technology of aspect, it is believed that the discussion content contributes to as reader with background's information, to be conducive to more
Understand various aspects of the invention well, it is therefore to be understood that be that these discussions are read with this angle, it is existing without being to recognize that
Technology.
Invention content
A kind of slab unhairing based on momentum model is provided it is an object of the invention to avoid in the prior art insufficient
Optimal control method is pierced, the problems such as to solve high current deburring machine deburring work inefficiency, maintenance cost, high energy consumption.
The purpose of the present invention is achieved through the following technical solutions：
A kind of slab deburring optimal control method based on momentum model is provided, is included the following steps：
S1, when fire cut machine carry out all two or all three after, by under the slab Current Temperatures after cutting tensile strength sigma,
Width W, weight M information descend into two tangent control systems；
S2, two tangent control systems are led to according to tensile strength sigma, width W and the weight M information under the Current Temperatures of input
It crosses momentum model and calculates slab movement velocity V0, slab movement velocity V0Make slab generation that can only make by way of shock
Burr on slab falls off required momentum；
S3, two tangent control systems determine the deburring pattern of slab and deburring pattern are issued deburring machine, this goes
Burr pattern is decaptitating, truncates or decaptitating Tail Model；
S4, two tangent control systems are with slab movement velocity V0Roller-way rotating speed is controlled, deburring machine is according to deburring mould
Formula executes decaptitating in a manner of hitting, truncate or goes step end to end, completes that roller-way ownership is returned two tangent line controls after step
System processed.
As a further improvement, in the step S2, momentum model calculates as follows：
According to mechanics of materials knowledge, for plastic material, when the shearing force that it is subject to is more than its shear defect τbWhen,
It will be broken, and formula is as follows：
For plastic material：
τb=0.8 σb
Wherein τbFor shear defect, σbFor the tensile strength under Current Temperatures；
According to mechanics of materials knowledge：
AThe section of shear=W × h
Wherein A is the section of shear；W is width of plate slab, and h is burr thickness；
According to momentum theorem：
Ft=Δs p
Wherein, F is the impulse force that object is subject to, and t is to be hit the time, and Δ p is the momentum of variation；
According to mechanical knowledge, to remove flash removed, the impulse force of burr being subject to should be greater than allowable shear stress, therefore obtain：
Using slab as object of reference, defined according to momentum：
Δ p=m × (Vt-V0)
Wherein, m is the quality of object, VtFor speed after shock, V0For speed before shock；
It is assumed that burr can just be broken by impulse force, it is detached from slab, slab stops, then Vt=0；Therefore have
Δ p=-mV0；
Wherein the attack time is very small, and roller-way is always with linear velocity V0It is operating, then slab is from V0Blade is hit to arrive
Stop, then then returning to V0Speed movement, the time is very of short duration, it is believed that during deburring, slab is at the uniform velocity
Movement, to have：
Wherein WBurrFor burr width, V0Speed before being hit for slab；
Using slab as object of reference, so as to：
Acquire slab movement velocity：
Wherein, σbFor the tensile strength under Current Temperatures, W is width of plate slab；H is burr thickness, WBurrFor burr width.
As a further improvement, in the step S3, two tangent control systems according to this slab be female base which
Its deburring pattern is arranged in work song base, if first piece of sub- base is then set as tail portion burr pattern；If second piece of sub- base and
For all three when, be set as decaptitating dodds thorn pattern, if second piece of sub- base and all two when, be set as head burr mould
Formula；If all three and when being third block base, be set as head burr pattern.
As a further improvement, in the step S4, two tangent control systems are with slab movement velocity V0Control
Roller-way rotating speed, when slab needs the head of flash removed or tail portion to will be moved to the Burr removing roller position of deburring machine, unhairing
Licker-in rises, and the blades impact on burr and Burr removing roller on slab, burr falls off from slab.
Slab deburring optimal control method provided by the invention based on momentum model, includes the following steps：S1, work as fire
The machine of cutting carry out all two or all after three, by tensile strength sigma, width W, the weight M information under the slab Current Temperatures after cutting
Descend into two tangent control systems；S2, two tangent control systems according under the Current Temperatures of input tensile strength sigma, width W and
Weight M information calculates slab movement velocity V by momentum model0, slab movement velocity V0Make slab generation that can only pass through
The mode of shock makes the burr on slab fall off required momentum；S3, two tangent control systems determine the deburring pattern of slab
And deburring pattern is issued into deburring machine, which is decaptitating, truncates or decaptitating Tail Model；S4, two tangent line controls
System processed is with slab movement velocity V0Roller-way rotating speed is controlled, deburring machine is executed according to deburring pattern in a manner of hitting
Head truncates or goes step end to end, completes that roller-way ownership is returned two tangent control systems after step.The present invention has following
Advantage：
1. the deburring mode based on momentum of use, simplifies debarring process, improves deburring machine production capacity；
2. using the slab deburring optimal control method based on momentum model its plant maintenance amount of new deburring machine compared with
It is small, reduce maintenance cost；
3. the slab deburring optimal control method based on momentum model according to the weight of specific slab, width and can be worked as
Tensile strength information calculates the deburring speed of this block steel plate at preceding temperature, strategically adjusts roller table speed, reduces energy consumption.
Description of the drawings
Using attached drawing, the invention will be further described, but the embodiment in attached drawing does not constitute any limit to the present invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is deburring machine master control flow in the related technology.
Fig. 2 is the improved system schematic of slab deburring optimal control method based on momentum model.
Fig. 3 is that slab is transported to 3# grating schematic diagrams.
Fig. 4 is that Burr removing roller lifts head burr schematic diagram.
Fig. 5 is that Burr removing roller lifts tail portion burr schematic diagram.
Fig. 6 is decaptitating or decaptitating tail flow chart.
Fig. 7 is tail portion burr flow chart.
Fig. 8 is that the tensile strength of certain steel grade varies with temperature table.
Specific implementation mode
It is below in conjunction with the accompanying drawings and specific real in order to make those skilled in the art more fully understand technical scheme of the present invention
Applying example, the present invention is described in further detail, it should be noted that in the absence of conflict, embodiments herein and
Feature in embodiment can be combined with each other.
Core of the invention is to provide a kind of slab deburring optimal control method based on momentum model, by dynamic
Model calculation is measured, the optimal motion speed for being suitble to this block slab is obtained, while to reach deburring, reduces energy consumption.
In conjunction with shown in Fig. 2 to Fig. 8, a kind of slab deburring optimization control based on momentum model provided in an embodiment of the present invention
Method processed, includes the following steps：
S1, when female base that continuous casting comes by fire cut machine carry out all two or all three after, complete cutting when, after cutting
Tensile strength sigma, width W, weight M information under slab Current Temperatures descend into two tangent control systems；
S2, two tangent control systems are led to according to tensile strength sigma, width W and the weight M information under the Current Temperatures of input
It crosses momentum model and calculates optimal slab movement velocity V0, slab movement velocity V0Make slab generation can be only by shock
Mode makes the burr on slab fall off required momentum；
S3, two tangent control systems determine the deburring pattern of slab and deburring pattern are issued deburring machine, this goes
Burr pattern is decaptitating, truncates or decaptitating Tail Model；
S4, two tangent control systems are with slab movement velocity V0Roller-way rotating speed is controlled, deburring machine is according to deburring mould
Formula executes decaptitating in a manner of hitting, truncate or goes step end to end, completes that roller-way ownership is returned two tangent line controls after step
System processed.
Embodiment as a further preference, in the step S2, momentum model calculates as follows：According to material power
It gains knowledge, for plastic material, when the shearing force that it is subject to is more than its shear defect τbWhen, it will be broken, formula
It is as follows：
For plastic material
τb=0.8 σb
Wherein τbFor shear defect, σbFor tensile strength (the different boards that inquiry two-wire system preserves under Current Temperatures
Number slab tensile strength varies with temperature table, such as Fig. 8, obtains approximation)
According to mechanics of materials knowledge
AThe section of shear=W × h
Wherein A is the section of shear；W is width of plate slab, and h is burr thickness；
According to momentum theorem
Ft=Δs p
Wherein, F is the impulse force that object is subject to, and t is to be hit the time, and Δ p is the momentum of variation；
According to mechanical knowledge, to remove flash removed, the impulse force of burr being subject to should be greater than allowable shear stress, therefore obtain
Using slab as object of reference, defined according to momentum
Δ p=m × (Vt-V0)
Wherein, m is the quality of object；VtFor speed after shock；V0For speed before shock；
It is assumed that burr can just be broken by impulse force, it is detached from slab, slab stops, then Vt=0；Therefore have
Δ p=-mV0
Wherein the attack time is very small, and roller-way is always with linear velocity V0It is operating, then slab is from V0Blade is hit to arrive
Stop, then then returning to V0Speed movement, the time is very of short duration, it is believed that during deburring, slab is at the uniform velocity
Movement, to have
Wherein WBurrFor burr width, V0Speed before being hit for slab；
Using slab as object of reference, so as to
It acquires
Wherein, σbFor the tensile strength under Current Temperatures, W is width of plate slab；H is that (h is burr thickness, root to burr thickness
According to field experience, its value is about 0.002m；), WBurrFor burr width (according to scene, its value is generally 0.02m or so).
Embodiment as a further preference, in the step S3, after calculating optimum control speed, according to this plate
Base is which work song base of female base, its deburring pattern is arranged, if first piece of sub- base is then set as tail portion burr pattern；If
Be second piece of sub- base and all three when, be set as decaptitating dodds thorn pattern, if second piece of sub- base and all two when, be set as
Head burr pattern；If all three and when being third block base, be set as head burr pattern.
Embodiment as a further preference, in the step S4, decaptitating or go end to end, the rate-determining steps that truncate
It is as follows：
The improved main input-output equipment of deburring machine is as shown in Fig. 2, wherein grating is by casting logistics direction point
It Wei not 1# gratings, 5# gratings, 2# gratings, 3# gratings；Deburring component is Burr removing roller, the unhairing for the row that arranges on roll surface
Bayonet piece；Deburring machine swing arm effect mainly steel plate can not main operational mode go down hair loss thorn just enabling, under normal circumstances
It does not use, does not give and embody in system schematic.
L1 controls the two tangent line roller-ways operating (forward, reverse or stop stop) where deburring machine, and deburring machine is used with L1
Hardwire connects.During deburring, deburring machine is to control deburring machine region roller-way, then to obtain roller-way to L1
Control.If after having removed burr, roller-way ownership is returned to L1.
Under automatic mode, go to go the whole flow process of tail portion burr as shown in Figure 7 shown in overall flow Fig. 6 of head burr.
It removes slab head burr or burr is as follows end to end：
STEP1:Start deburring machine and remove slab head burr or end to end burr pattern, deburring machine obtains roller-way at this time
Control ownership.
STEP2:Roller-way rotates forward, and prepares slab being transported to head in 3# stop positions, as shown in Figure 3；Slab at this time
Speed v advances；
STEP3:Roller-way stops, and slab head is in 3# stop positions at this time, specifically as shown in Figure 3；
STEP4:Roller-way inverts, and slab is shipped back to the position of head 1# gratings by preparation；
STEP5:Roller-way inverts, while Burr removing roller lifts and is ready to slab head burr after delay time t, such as Fig. 4 institutes
Show；Slab is retreated with speed v at this time, and Burr removing roller lifts after time t, is ready to head burr；
STEP6:Roller-way stops, while Burr removing roller declines；
STEP7:Roller-way stops, and is confirmed whether tail portion burr to be gone；
Judge whether to need to carry out tail portion deburring at this time, STEP8a steps is entered when needing tail portion burr, otherwise
It is directly entered STEP8 steps；
STEP8a：Deburring machine is prepared to enter into tail portion burr step into after having removed head burr at this time, and controls roller
Road transports slab to 3# gratings；Slab at this time is advanced with speed V；
STEP8b：Roller-way rotates forward, and slab advances, and Burr removing roller rises after the tS that is delayed, as shown in Figure 5；When slab tail
Portion's tS Burr removing rollers that are delayed after 5# grating moments will lift, and completion goes tail portion burr to act；
STEP8c：Roller-way stops, and burr roller declines；The step that truncates after decaptitating is completed at this time；
STEP8：Under the pattern for only removing head burr, roller-way rotates forward, and it is defeated that slab is transported to deburring machine last group
Go out roller-way；
STEP9：It goes to head or goes to complete end to end, and roller-way ownership is returned into L1, while deburring machine being completed
Deburring signal issues L1, is prepared as next piece of slab deburring；
The step of removing slab tail portion burr is as follows：
STEP1:Start deburring machine and go slab tail portion burr pattern, deburring machine obtains roller-way and controls ownership at this time；
STEP2：Deburring machine control roller-way prepares to transport slab to 3# gratings；Slab at this time is advanced with speed V；
STEP3：Roller-way rotates forward, and slab advances, and Burr removing roller rises after tS is delayed, as shown in Figure 5；
STEP4：Roller-way rotates forward, and burr roller declines；
STEP5：Roller-way stops；
STEP6：Roller-way stops, and uploads and completes that tail portion burr is gone to work, and roller-way ownership is returned L1.
In automatic mode, control condition in slab head burr or end to end each step of burr and strategy are removed such as
Under：
STEP1:Start deburring machine and remove slab head burr or end to end burr, to meet following three condition simultaneously：
1. the slab for receiving L1 transmissions goes to head or the end to end order of burr；
2. deburring machine is in automatic mode；
3. deburring machine swing arm is in home；
Deburring machine obtains roller-way and controls ownership at this time.
STEP2:Roller-way rotates forward, and prepares slab being transported to head in 3# stop positions, as shown in Figure 3.STEP2 startups are wanted
Meet following three condition simultaneously：
1. slab inputs first group of roller-way stop position in 1# stop positions or in deburring machine；
2. roller-way is in automatic mode；
3. STEP1 has been turned on；
4. slab at this time is advanced with speed V；
STEP3:Roller-way stops, and slab head is in 3# stop positions at this time, as shown in Figure 3.STEP3 startups will meet simultaneously
Following five conditions：
1. swing arm is in starting or end position；
2. STEP1 has been turned on；
3. STEP2 has been turned on；
4. 3# gratings are blocked moment；
5. 1# gratings do not block；
STEP4:Roller-way inverts, and slab is shipped back to the position of head 1# gratings by preparation.STEP4 startups will meet simultaneously
Following three condition：
1. STEP1 has been turned on；
2. STEP3 has been turned on；
3. 3# gratings are blocked；
STEP5:Roller-way inverts, while Burr removing roller lifts after the tS that is delayed, and is ready to slab head burr, as shown in Figure 4.
STEP5 startups will meet following three condition simultaneously：
1. STEP1 has been turned on；
2. STEP4 has been turned on；
3. 2# gratings do not block moment；
4. 3# gratings do not block；
Slab is retreated with speed V at this time, and Burr removing roller lifts after tS, is ready to head burr；
STEP6:Roller-way stops, while Burr removing roller declines.STEP6 startups will meet following five conditions simultaneously：
1. STEP1 has been turned on；
2. STEP5 has been turned on；
3. 5# gratings are not blocked moment；
4. 2# gratings are not blocked；
5. 3# gratings are not blocked；
STEP7:Roller-way stops, and is confirmed whether tail portion burr to be gone.STEP7 startups will meet following four condition simultaneously：
1. STEP1 has been turned on；
2. STEP6 has been turned on；
3. 2# gratings are not blocked；
4. 3# gratings are not blocked；
Judge whether to need to carry out tail portion deburring at this time, STEP8a steps is entered when needing tail portion burr, otherwise
It is directly entered STEP8 steps；
STEP8a：Deburring machine is prepared to enter into tail portion burr step into after having removed head burr at this time, and controls roller
Road transports slab to 3# gratings；Slab at this time is advanced with speed v.STEP8a startups will meet following six conditions simultaneously：
1. STEP1 has been turned on；
2. STEP6 has been turned on；
3. 2# gratings are not blocked；
4. 3# gratings are not blocked；
5. 5# gratings are not blocked；
6. decaptitating Tail Model has selected；
STEP8b：Roller-way rotates forward, and slab advances, and Burr removing roller rises after tS is delayed, as shown in Figure 5.STEP8b is opened
It is dynamic to meet following four condition simultaneously：
1. STEP1 has been turned on；
2. STEP8a has been turned on；
3. swing arm is in initial or end position；
4. 5# gratings are not blocked moment；
When slab tail portion, the tS Burr removing rollers that are delayed after 5# grating moments will lift, and completion goes tail portion burr to act；
STEP8c：Roller-way stops, and burr roller declines.STEP8c startups will meet following four condition simultaneously：
1. STEP1 has been turned on；
2. STEP8b has been turned on；
3. 2# gratings are not blocked moment；
4. 3# gratings are blocked；
The step that truncates after decaptitating is completed at this time；
STEP8：Under the pattern for only removing head burr, roller-way rotates forward, and it is defeated that slab is transported to deburring machine last group
Go out roller-way.STEP8 startups will meet following six conditions simultaneously：
1. STEP1 has been turned on；
2. STEP7 has been turned on；
3. only removing head burr；
4. 2# gratings are not blocked；
5. 3# gratings are not blocked；
6. 5# gratings are not blocked；
STEP9：It goes to head or goes to complete end to end, and roller-way ownership is returned into L1, while deburring machine being completed
Deburring signal issues L1, is prepared as next piece of slab deburring.There are two types of situations for STEP9 startups：
Situation one：Only remove head burr
STEP9 startups will meet following three condition simultaneously：
1. 3# gratings are blocked；
2. STEP8 has been turned on；
3. only removing head burr；
Situation two：Go to head and tail portion burr
STEP9 startups will meet following three condition simultaneously：
1. 3# gratings are blocked；
2. STEP8c has been turned on；
3. going to head and tail portion burr.
In automatic mode, go control condition in each step of slab tail portion burr and strategy as follows：
STEP1:Start deburring machine and go slab tail portion burr pattern, to meet following three condition simultaneously：
1. the slab for receiving L1 transmissions goes the order of tail portion burr；
2. deburring machine is in automatic mode；
3. deburring machine swing arm is in home；
Deburring machine obtains roller-way and controls ownership at this time；
STEP2：Deburring machine control roller-way prepares to transport slab to 3# gratings；Slab at this time is advanced with speed V.
STEP2 startups will meet following three condition simultaneously：
1. slab is in 1# stop positions or in first group of approach table stop position of deburring machine；
2. roller-way is in automatic mode；
3. STEP1 has been turned on；
STEP3：Roller-way rotates forward, and slab advances, and Burr removing roller rises after tS is delayed, as shown in Figure 5.STEP3 starts
To meet following four condition simultaneously：
1. STEP1 has been turned on；
2. STEP2 has been turned on；
3. swing arm is in starting or end position；
4. 5# gratings are not blocked moment；
STEP4：Roller-way rotates forward, and burr roller declines.STEP4 startups will meet following three condition simultaneously：
1. STEP1 has been turned on；
2. STEP3 has been turned on；
3. 2# gratings are not blocked moment；
STEP5：Roller-way stops.STEP5 startups will meet following three condition simultaneously：
1. STEP1 has been turned on；
2. STEP4 has been turned on；
3. 1# gratings are not blocked；
4. 2# gratings are not blocked；
5. 3# gratings are blocked；
STEP6：Roller-way stops, and uploads and completes that tail portion burr is gone to work, and roller-way ownership is returned L1.STEP6 starts
To meet following three condition simultaneously：
1. STEP1 has been turned on；
2. STEP5 has been turned on；
3. 1# gratings are not blocked；
4. 2# gratings are not blocked；
5. 3# gratings are blocked；
The concrete application embodiment that the present invention is applied to production is as follows：
Certain steel grade 1, tensile strength is 700MPa when cold conditions, and the weight of sub- base is 14t, width 2.1m, temperature 400
DEG C, by tabling look-up it is found that in this temperature, the thickness of tensile strength 380MPa, burr are 0.002m, and the width of burr is
0.02m, it is 1.35m/s that the above parameter input model, which can be calculated optimal roller-way linear velocity,.
This block slab is all second piece of three, and two tangent line systems are set as decaptitating dodds thorn, and the deburring time is about
61.5s, this pattern of the deburring machine of GeGa companies design before this take about 330s.
Above description can obtain, method of the invention mainly obtains fire in two tangent line systems from L3 cuts machine-cut and cut mother
Sub- base information (cold conditions tensile strength, weight, width etc.) after base, then according to collected sub- base temperature information by tabling look-up
Mode obtain the tensile strength of sub- base at a temperature of this, and substitute into momentum model with other information, calculate optimal roller-way control
Speed processed, control roller-way linear velocity achievees the purpose that deburring and reduces energy consumption, while deburring mode is issued deburring
Machine control system (decaptitating truncates or goes end to end), deburring machine control system use the deburring mode based on momentum, shorten
The time of deburring improves the production capacity of deburring machine.On the other hand, the deburring control method based on momentum, it is desirable that equipment
Required component is less, reduces maintenance to reduce the cost of maintenance.
Slab deburring optimal control method provided in an embodiment of the present invention based on momentum model has the following advantages：
1. the deburring mode based on momentum of use, simplifies debarring process, improves deburring machine production capacity；Such as
It goes under the burr mode of tail portion, the mode of method of the invention ratio GeGa companies has lacked four steps.
2. using the slab deburring optimal control method based on momentum model its plant maintenance amount of new deburring machine compared with
It is small, reduce maintenance cost；The mode of component ratio GeGa companies needed for the control method of the present invention has lacked 9, wherein having 1
A grating, 6 limits, a motor and an encoder.
3. the slab deburring optimal control method based on momentum model according to the weight of specific slab, width and can be worked as
Tensile strength information calculates the deburring speed of this block steel plate at preceding temperature, strategically adjusts roller table speed, reduces energy consumption.
The method of operation of setting roller table speed is more energy saving premised on steel grade more maximum than satisfaction removal shearing force.
Many details are elaborated in above description to facilitate a thorough understanding of the present invention, still, the present invention can be with
Implemented different from other modes described here using other, it is thus impossible to be interpreted as limiting the scope of the invention.
In short, although the present invention lists above-mentioned preferred embodiment, although it should be noted that those skilled in the art
Member can carry out various change and remodeling, unless such variation and remodeling deviate from the scope of the present invention, otherwise should all wrap
It includes within the scope of the present invention.
Claims (4)
1. a kind of slab deburring optimal control method based on momentum model, it is characterised in that：Include the following steps：
S1, when fire cut machine carry out all two or all three after, by the tensile strength sigma under the slab Current Temperatures after cutting, width
W, weight M information descends into two tangent control systems；
S2, two tangent control systems are according to tensile strength sigma, width W and the weight M information under the Current Temperatures of input, by dynamic
Amount model calculates slab movement velocity V0, slab movement velocity V0Make slab generation that can only make slab by way of shock
On burr fall off required momentum；
S3, two tangent control systems determine the deburring pattern of slab and deburring pattern are issued deburring machine, the deburring
Pattern is decaptitating, truncates or decaptitating Tail Model；
S4, two tangent control systems are with slab movement velocity V0Roller-way rotating speed is controlled, deburring machine is according to deburring pattern to hit
The mode hit executes decaptitating, truncate or goes step end to end, completes that roller-way ownership is returned two tangent control systems after step.
2. the slab deburring optimal control method according to claim 1 based on momentum model, it is characterised in that：Institute
It states in step S2, momentum model calculation is as follows：
According to mechanics of materials knowledge, for plastic material, when the shearing force that it is subject to is more than its shear defect τbWhen, it will
It is broken, formula is as follows：
For plastic material：
τb=0.8 σb
Wherein τbFor shear defect, σbFor the tensile strength under Current Temperatures；
According to mechanics of materials knowledge：
AThe section of shear=W × h
Wherein A is the section of shear；W is width of plate slab, and h is burr thickness；
According to momentum theorem：
Ft=Δs p
Wherein, F is the impulse force that object is subject to, and t is to be hit the time, and Δ p is the momentum of variation；
According to mechanical knowledge, to remove flash removed, the impulse force of burr being subject to should be greater than allowable shear stress, therefore obtain：
Using slab as object of reference, defined according to momentum：
Δ p=m × (Vt-V0)
Wherein, m is the quality of object, VtFor speed after shock, V0For speed before shock；
It is assumed that burr can just be broken by impulse force, it is detached from slab, slab stops, then Vt=0；Therefore have
Δ p=-mV0
Wherein the attack time is very small, and roller-way is always with linear velocity V0It is operating, then slab is from V0Blade is hit to stopping
Only, V is then then returned to0Speed movement, the time is very of short duration, it is believed that during deburring, slab is at the uniform velocity transported
It is dynamic, to have：
Wherein WBurrFor burr width, V0Speed before being hit for slab；
Using slab as object of reference, so as to：
Acquire slab movement velocity：
Wherein, σbFor the tensile strength under Current Temperatures, W is width of plate slab；H is burr thickness, WBurrFor burr width.
3. the slab deburring optimal control method according to claim 2 based on momentum model, it is characterised in that：Institute
It states in step S3, its deburring pattern is arranged according to which work song base that this slab is female base in two tangent control systems, if the
One piece of sub- base is then set as tail portion burr pattern；If second piece of sub- base and for all three when, be set as decaptitating dodds thorn mould
Formula, if second piece of sub- base and all two when, be set as head burr pattern；If all three and when being third block base, if
It is set to head burr pattern.
4. the slab deburring optimal control method according to claim 1 or 2 or 3 based on momentum model, feature exist
In：In the step S4, two tangent control systems are with slab movement velocity V0Roller-way rotating speed is controlled, slab needs defeathering
I.e. when will be moved to the Burr removing roller position of deburring machine, Burr removing roller rises on the head or tail portion of thorn, the burr on slab with
Blades impact on Burr removing roller, burr fall off from slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289271.1A CN108664048B (en) | 2018-03-30 | 2018-03-30 | Slab deburring optimization control method based on momentum model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810289271.1A CN108664048B (en) | 2018-03-30 | 2018-03-30 | Slab deburring optimization control method based on momentum model |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108664048A true CN108664048A (en) | 2018-10-16 |
| CN108664048B CN108664048B (en) | 2021-03-23 |
Family
ID=63782043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810289271.1A Active CN108664048B (en) | 2018-03-30 | 2018-03-30 | Slab deburring optimization control method based on momentum model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108664048B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238588A (en) * | 2021-04-07 | 2021-08-10 | 深圳和而泰智能控制股份有限公司 | Swing arm synchronous control method and swing gate |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426330A (en) * | 2000-12-28 | 2003-06-25 | 川崎制铁株式会社 | Hot rolling method and hot rolling line |
| CN1784280A (en) * | 2003-05-06 | 2006-06-07 | 株式会社野村镀金 | Mold and method of manufacturing the same |
| CN202049371U (en) * | 2010-12-22 | 2011-11-23 | 鞍钢集团自动化公司 | Cutting control system for continuous casting slab |
| CN203196989U (en) * | 2013-03-18 | 2013-09-18 | 马钢(集团)控股有限公司 | Slab burr removing device |
| CN104057148A (en) * | 2013-03-21 | 2014-09-24 | 宝山钢铁股份有限公司 | Deburring control method for two-tangent deburring machine |
| US20150306282A1 (en) * | 2014-04-28 | 2015-10-29 | John James Scanlon | Bioresorbable Stent |
| CN105269076A (en) * | 2014-06-30 | 2016-01-27 | 宝山钢铁股份有限公司 | Head control method for plate blank deburring machine |
| US20160303635A1 (en) * | 2015-04-10 | 2016-10-20 | The Nanosteel Company, Inc. | Edge Formability In Metallic Alloys |
| CN205798548U (en) * | 2016-06-01 | 2016-12-14 | 鞍钢重型机械有限责任公司 | Novel slab deburring |
| CN107396551A (en) * | 2017-07-28 | 2017-11-24 | 贵州鑫阳科技股份有限公司 | Equipment for controlling slab to process |
-
2018
- 2018-03-30 CN CN201810289271.1A patent/CN108664048B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1426330A (en) * | 2000-12-28 | 2003-06-25 | 川崎制铁株式会社 | Hot rolling method and hot rolling line |
| CN1784280A (en) * | 2003-05-06 | 2006-06-07 | 株式会社野村镀金 | Mold and method of manufacturing the same |
| CN202049371U (en) * | 2010-12-22 | 2011-11-23 | 鞍钢集团自动化公司 | Cutting control system for continuous casting slab |
| CN203196989U (en) * | 2013-03-18 | 2013-09-18 | 马钢(集团)控股有限公司 | Slab burr removing device |
| CN104057148A (en) * | 2013-03-21 | 2014-09-24 | 宝山钢铁股份有限公司 | Deburring control method for two-tangent deburring machine |
| US20150306282A1 (en) * | 2014-04-28 | 2015-10-29 | John James Scanlon | Bioresorbable Stent |
| CN105269076A (en) * | 2014-06-30 | 2016-01-27 | 宝山钢铁股份有限公司 | Head control method for plate blank deburring machine |
| US20160303635A1 (en) * | 2015-04-10 | 2016-10-20 | The Nanosteel Company, Inc. | Edge Formability In Metallic Alloys |
| CN205798548U (en) * | 2016-06-01 | 2016-12-14 | 鞍钢重型机械有限责任公司 | Novel slab deburring |
| CN107396551A (en) * | 2017-07-28 | 2017-11-24 | 贵州鑫阳科技股份有限公司 | Equipment for controlling slab to process |
Non-Patent Citations (2)
| Title |
|---|
| 蔡志军: "马钢板坯连铸锤式旋转去毛刺机的应用", 《连铸》 * |
| 袁友: "板坯去毛刺机控制系统优化与改造", 《河南冶金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238588A (en) * | 2021-04-07 | 2021-08-10 | 深圳和而泰智能控制股份有限公司 | Swing arm synchronous control method and swing gate |
| CN113238588B (en) * | 2021-04-07 | 2024-04-09 | 深圳和而泰智能控制股份有限公司 | Swing arm synchronous control method and swing gate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108664048B (en) | 2021-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202427938U (en) | Automatic tracking system for continuous casting slab numbers | |
| CN102294361A (en) | Method for controlling equal-gap steel rolling | |
| CN109365541A (en) | The control method for fully automatic of steel area equipment on a kind of high-speed bar mill production line high-speed | |
| CN100389905C (en) | Processing method of impellor mould of pressurizing unit compressor | |
| CN108664048A (en) | Slab deburring optimal control method based on momentum model | |
| CN103599950B (en) | A kind of accelerated cooling device and method improving steel plate cooling uniformity | |
| CN102935547B (en) | System for removing slab burrs | |
| CN106903172A (en) | A kind of control method for realizing steel plate in the position tracking switching of rolling different zones | |
| CN206316142U (en) | A kind of short range is exempted to heat Direct Rolling control system | |
| CN105478701A (en) | Automatic pouring stopping control method for double-flow plate blank | |
| CN104942250A (en) | Online continuous casting billet preset width setting and tracking method | |
| CN108655185A (en) | The method for preventing singlestandmill steel-fastening | |
| CN110976804A (en) | Sizing control method of continuous casting billet | |
| CN201979612U (en) | On-line plate-shearing machine | |
| CN108097904A (en) | Fully-automatic intelligent hot scarfing machine system | |
| US11529670B2 (en) | Method for cutting a cast strand or intermediate strip using shears | |
| CN113600770B (en) | System and method for reducing waste amount of steel billets during continuous casting and replacing of water outlet | |
| CN104842011B (en) | A kind of 3DOF steel billet burr rejecting machine | |
| CN112222367B (en) | Continuous casting blank cutting control system and weight self-adaptive cutting control method thereof | |
| CN102847902B (en) | Double-casting coexistence control method for efficient continuous casting machine with dummy bar | |
| CN207256851U (en) | One kind extrusion unit master ＆ slave control system | |
| CN207735515U (en) | A kind of efficient hand-held bar cropper | |
| CN104841902A (en) | Optimization device and method for casting blank production plan during period of rapidly exchanging tundish | |
| CN111804736A (en) | High-speed flying shear control method | |
| FI115705B (en) | Method and apparatus for cutting a moving web |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |