CN107088584A - The interlock protection control method and system of vertical miller - Google Patents
The interlock protection control method and system of vertical miller Download PDFInfo
- Publication number
- CN107088584A CN107088584A CN201610088280.5A CN201610088280A CN107088584A CN 107088584 A CN107088584 A CN 107088584A CN 201610088280 A CN201610088280 A CN 201610088280A CN 107088584 A CN107088584 A CN 107088584A
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- Prior art keywords
- roll
- working roll
- vertical miller
- gap
- protection control
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The invention discloses the interlock protection control method and system of a kind of vertical miller, the system includes roughing mill and processor, wherein：Roughing mill includes guide rail, working roll and its balancing cylinder；Working roll sets limit switch in its extreme position, and limit switch is installed on guide rail by block；The two ends of balancing cylinder are provided with position sensor, and position sensor collecting work rolls out weighing apparatus positional value；Processor judges whether limit switch is triggered, and whether the difference that actual gap values between rollers are worth with working roll equilbrium position is less than preset value；If so, then roughing mill enters steel, if it is not, then swinging steel plate.This method comprises the following steps：Set the extreme position that work roller gap is opened；The difference that the actual gap values between rollers of setting are worth with working roll equilbrium position；Carry out edge rolling process；Judge whether roll gap is opened to extreme position, and whether the difference that actual gap values between rollers are worth with working roll equilbrium position is less than preset value；If so, then roughing mill enters steel；If it is not, then swinging steel plate.
Description
Technical field
The present invention relates to vertical miller automation control method and system, more specifically to one kind
The interlock protection control method and system of vertical miller.
Background technology
The purpose of design of vertical miller is the template in order to ensure rolling, and reduction edge cuts house amount, and
Finishing mill is the output equipment for rolling final products, and the outlet that vertical miller is arranged in into finishing mill will
Play expected effect.Find in actual use, for rolling after thin plate, edge rolling power is excessive
Plank can be caused to arch upward, roll-force is too small, be not carried out the purpose of deburring.And if by vertical miller by
Finishing mill outlet integral moving is to roughing mill entrance, and the effect of vertical miller is played completely after resettlement,
Both reduced steel plate edge cuts house amount, while lifting surface of steel plate scale removal effect.
But, also it there are problems that in actual use, such as working roll balance is received not sometimes
Return, milling train enters steel and lacks interlock protection, causes steel plate to knock equipment, has both rolled bad steel plate, also hit
Equipment is hindered.Edger roll is arranged in roughing mill entry position, under hydraulic jack, machinery pressure and working roll
Three parts of balance constitute press down system, and working roll equilibrium reaction makes working roll and hydraulic jack pressure
Lean on, it is ensured that the uniformity of action.
The mode of operation of edger roll has three kinds：
1. ready mode
N-2 passages (strange passage)：N-2 passages roughing mill is thrown after steel, and LCO judges whether to use
Edger roll, ready mode signal and steel plate width are sent to edger roll TDC system.
N-1 passages (even passage)：The actual tail position of roughing mill N-1 passage steel plates, by vertical
After roller, edger roll positioning target position is preparation position.
2. press from both sides Tail Model
After N-1 passages throw steel, edger roll enters folder Tail Model, and edger roll positioning target position is folder tail position,
The course of work for pressing from both sides Tail Model is as follows:
Edger roll is in roll gap setting journey is navigated to, and edger roll contacts with steel plate and is more than 0.5MN roll-force,
Now edger roll stops positioning immediately, keeps current roll gap constant, and preservation is worked as at the end of tail process is pressed from both sides
Preceding roll gap.
3. mode of operation
Steel plate is thrown steel and left after edger roll, and edger roll enters mode of operation, and positioning target position is working position.
Steel plate enters manipulator and carried out after centering, and forward direction enters steel and starts the extreme trace time operation of rolling.Steel plate enters
Enter after vertical miller, edger roll keeps current roll gap setting, and carries out roll gap control according to the roll-force of setting
System.
Roll gap is opened to 5030mm position after the completion of rolling, and the positional value is the position by EWC
Sensor detection is put to get.EWC and working roll do not have Hard link, are to be balanced by working roll by work
Roll-in is come on EWC, if so the equilibrant force disappears, or jam occurs in tracks, from
This case is not seen on gap values between rollers.
The newly-increased vertical miller equipment of slab portion roughing from the point of view of former edging sequence flow, substantially according to
Traditional edging pattern is designed, and does not account for the actual conditions at scene.After putting equipment in service,
After rolling terminates, if the operation of rolling of next block of steel generates problem, the problem can be made to working roll
It is thick into can also damage if than larger impact, causing the damage of vertical roller side compressing cylinder and motor, piling of steel
Operation roll of mill.
The content of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to provide a kind of vertical miller
Interlock protection control method and system.
To achieve the above object, the present invention is adopted the following technical scheme that：
A kind of interlock protection control method of vertical miller, comprises the following steps：Set work roller gap
The extreme position of opening；The difference that the actual gap values between rollers of setting are worth with working roll equilbrium position；Carry out edger roll
Rolling process；Judge whether roll gap is opened to extreme position, and actual gap values between rollers are balanced with working roll
Whether the difference of positional value is less than preset value；If so, then roughing mill enters steel；If it is not, then swinging steel plate.
According to one embodiment of the invention, the extreme position that roll gap is opened is 5030mm, and in the limit
Limit switch is set at position.
According to one embodiment of the invention, set location sensor, position on the balancing cylinder of working roll
Put sensor collecting work and roll out weighing apparatus positional value.
According to one embodiment of the invention, edge rolling process comprises the following steps：Initialization；Judge
Whether edger roll is used；If so, then continuing, if it is not, then returning to initialization step；Set working position；
Steel plate reaches working position；Edge rolling；Roll gap is opened；Judge whether roll gap reaches maximum；If so,
Then continue, if it is not, then continuing to open roll gap.
According to one embodiment of the invention, actual gap values between rollers are obtained by EWC sensors.
To achieve the above object, the present invention is also adopted the following technical scheme that：
A kind of interlock protection control system of vertical miller, including vertical miller, roughing mill and processor,
Wherein：Vertical miller includes guide rail, working roll and its balancing cylinder；Working roll is in its extreme position
Limit switch is set, and limit switch is installed on guide rail by block；The two ends of balancing cylinder are provided with position
Sensor is put, position sensor collecting work rolls out weighing apparatus positional value；Whether processor judges limit switch
It is triggered, and whether the difference that actual gap values between rollers are worth with working roll equilbrium position is less than preset value；If
It is that then roughing mill enters steel, if it is not, then swinging steel plate.
In the above-mentioned technical solutions, the interlock protection control method and system energy of vertical miller of the invention
Enough solve the matching problem of edger roll and roughing mill, it is to avoid due to the various events that working roll is not switched on and is caused
Barrier.
Brief description of the drawings
Fig. 1 is the position view of edger roll and roughing mill；
Fig. 2 is the scheme of installation of limit switch, position sensor；
Fig. 3 is the flow chart of the interlock protection control method of vertical miller of the present invention.
Embodiment
Technical scheme is further illustrated with reference to the accompanying drawings and examples.
The present invention is in order to reduce the error rate of signal, and general thought of the invention is to use digital quantity signal
With two kinds of detection modes of analog signalses, it is possible to prevente effectively from the shutdown or rolling that are caused due to error signal
It is abnormal.Digital quantity signal is used when being opened to maximum position according to roll gap, should be reached in working roll
Limit switch 5 is installed at the maximum point arrived.By the signal acquisition of limit switch 5 to control system, ginseng
With interlocked control, and analog signalses be to working roll balance oil cylinder transform, be mounted with
3250mm position sensor 6 is obtained.By the signal access control system of position sensor 6, ginseng
With interlocked control.
With reference first to Fig. 1, the present invention is applied in combination suitable for vertical miller 1 and roughing mill 2.Such as
Shown in Fig. 1, according to process flow, roughing mill 2 is arranged at the rear of vertical miller 1.In addition, by
Need to handle digital quantity signal and analog signalses in the present invention, therefore place is additionally provided with system
Manage device (being not shown).
As shown in Fig. 2 vertical miller 1 includes guide rail 3, working roll and its balancing cylinder 4.Work
Roller sets limit switch 5 in its extreme position, and limit switch 5 is installed on guide rail 3 by block.
Set location sensor 6 on the balancing cylinder 4 of working roll, specifically, the two ends of balancing cylinder 4
Provided with position sensor 6, the collecting work of position sensor 6 rolls out weighing apparatus positional value (BALXSS), and
Actual gap values between rollers are then obtained by EWC sensors.Processor receives above-mentioned signal, judges limit switch
Whether 5 be triggered, and actual gap values between rollers (EWCXSS) and working roll equilbrium position value (BALXSS)
Difference whether be less than preset value a, i.e., | EWCXSS-BALXSS |<Whether a sets up.If so, then thick
Milling train 2 enters steel, if it is not, then swinging steel plate.
The steel-fastening of vertical miller 1 is prevented to be not turned on mainly due to roll gap caused by maximum position, and
Roll gap is not turned on having two kinds of reasons to maximum：One kind is that EWC is not carried out in place, causing EWC
All it is not turned on working roll balance.Another is that working roll balance is not turned on, and reason is to open
During, working roll and EWC are separated from and.The reason for disengagement is probably the jam or hydraulic pressure of track
The failure of system.For the first problem, source control program has had perfect, therefore prevents edger roll
The key of the steel-fastening of milling train 1 is how to detect working roll either with or without being opened to maximum position.
The environment of mill area is very severe, and high temperature, steam are all very serious.Simplest detection is anti-
And it is most effective, therefore it is contemplated that maximum position detection is carried out by way of limit switch 5 is installed.
When spacing installation site is opened to maximum according to roll gap, position when working roll and close EWC laminatings
It is determined that.Find in actual use, the detection mode of limit switch 5 can solve most of ask really
Topic, still, working roll meeting a bit deficient in during action is to maximum position sometimes, the shortcoming is not
Influence can be produced on normal steel rolling, but be not allow roughing to enter steel in the presence of interlock condition,
To the signal short circuit, there is risk again.
Therefore, reference picture 3, invention additionally discloses a kind of interlock protection control method of vertical miller,
Suitable for the system of the present invention.
As shown in figure 3, the method for the present invention comprises the following steps：
Preliminary step：The extreme position (HOME POSITION) that work roller gap is opened is set, with
And the difference that the actual gap values between rollers of setting are worth with working roll equilbrium position.
Preferably, the extreme position that roll gap is opened is 5030mm, and extreme position is spacing opens
The set location of pass.
Edge rolling process is carried out, it comprises the following steps：
S1：Initialization.
S2：Just judge whether to use edger roll；If so, then continuing, if it is not, then returning to initialization step.
S3：Just set working position.
S4：First steel plate reaches working position.
S5：First edge rolling.
S6：First roll gap is opened.
S7：Just judge whether roll gap reaches maximum.If so, then continuing, if it is not, then continuing to open roller
Seam.
S8：Just judge whether roll gap is opened to extreme position, and actual gap values between rollers (EWCXSS)
Whether the difference for being worth (BALXSS) with working roll equilbrium position is less than preset value.
S9：If so, then roughing mill enters steel.
S10：If it is not, then swinging steel plate.
After steel plate completes rolling, roll gap sets open position as 5030mm, and actual whether open can
To be judged according to following two methods：
1. extreme position is detected, according to the position for being normally opened to 5030mm, limit spacing is installed,
Whether there is in program by HOME POSITION and detect signal and judged, if it have detected that
Signal, then prove that roll gap has opened to maximum, does not otherwise allow into steel.
It is balancing cylinder installation site sensor 2. being judged by newly increasing position detection.Due to flat
Weighing apparatus cylinder and machinery pressure under situation theory on for be relatively fixed, therefore with machinery pressure and compensating cylinder phase
Positional value is judged, if within window ranges, then it is assumed that roll gap has opened to maximum,
Allow into steel, do not allow into steel if beyond window value, the window value is according in normal movements
Therebetween the maximum of relative position change is determined, i.e., | EWCXSS-BALXSS |.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to
The bright present invention, and be not used as limitation of the invention, as long as in the spirit of the present invention
Interior, change, modification to embodiment described above will all fall in the range of claims of the present invention.
Claims (6)
1. the interlock protection control method of a kind of vertical miller, it is characterised in that comprise the following steps：
Set the extreme position that work roller gap is opened；
The difference that the actual gap values between rollers of setting are worth with working roll equilbrium position；
Carry out edge rolling process；
Judge whether roll gap is opened to extreme position, and actual gap values between rollers are worth with working roll equilbrium position
Difference whether be less than preset value；If so, then roughing mill enters steel；If it is not, then swinging steel plate.
2. the interlock protection control method of vertical miller as claimed in claim 1, it is characterised in that：
The extreme position that the roll gap is opened is 5030mm, and sets spacing in the extreme position
Switch.
3. the interlock protection control method of vertical miller as claimed in claim 1, it is characterised in that：
The set location sensor on the balancing cylinder of working roll, the position sensor gathers the work
Roll out weighing apparatus positional value.
4. the interlock protection control method of vertical miller as claimed in claim 1, it is characterised in that
The edge rolling process comprises the following steps：
Initialization；
Judge whether to use edger roll；If so, then continuing, if it is not, then returning to initialization step；
Set working position；
Steel plate reaches working position；
Edge rolling；
Roll gap is opened；
Judge whether roll gap reaches maximum；If so, then continuing, if it is not, then continuing to open roll gap.
5. the interlock protection control method of vertical miller as claimed in claim 1, it is characterised in that：
The actual gap values between rollers are obtained by EWC sensors.
6. a kind of interlock protection control system of vertical miller, including vertical miller, roughing mill and processing
Device, it is characterised in that：
The vertical miller includes guide rail, working roll and its balancing cylinder；
The working roll sets limit switch in its extreme position, and the limit switch is pacified by block
Loaded on guide rail；
The two ends of the balancing cylinder are provided with position sensor, and the position sensor collecting work is rolled out
Weigh positional value；
The processor judges whether limit switch is triggered, and actual gap values between rollers are balanced with working roll
Whether the difference of positional value is less than preset value；If so, then roughing mill enters steel, if it is not, then swinging steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610088280.5A CN107088584A (en) | 2016-02-17 | 2016-02-17 | The interlock protection control method and system of vertical miller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610088280.5A CN107088584A (en) | 2016-02-17 | 2016-02-17 | The interlock protection control method and system of vertical miller |
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| Publication Number | Publication Date |
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| CN107088584A true CN107088584A (en) | 2017-08-25 |
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ID=59645999
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| CN201610088280.5A Pending CN107088584A (en) | 2016-02-17 | 2016-02-17 | The interlock protection control method and system of vertical miller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126985A (en) * | 2017-11-30 | 2018-06-08 | 马鞍山钢铁股份有限公司 | A kind of universal profiled rolling mill upper roller axially retains the control method of plate |
| CN113751508A (en) * | 2021-08-06 | 2021-12-07 | 阳春新钢铁有限责任公司 | Ultra-long collision avoidance control method for double-high-line-row three-roller table |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108126985A (en) * | 2017-11-30 | 2018-06-08 | 马鞍山钢铁股份有限公司 | A kind of universal profiled rolling mill upper roller axially retains the control method of plate |
| CN108126985B (en) * | 2017-11-30 | 2019-07-02 | 马鞍山钢铁股份有限公司 | A kind of universal profiled rolling mill upper roller axially retains the control method of plate |
| CN113751508A (en) * | 2021-08-06 | 2021-12-07 | 阳春新钢铁有限责任公司 | Ultra-long collision avoidance control method for double-high-line-row three-roller table |
| CN113751508B (en) * | 2021-08-06 | 2023-05-26 | 阳春新钢铁有限责任公司 | Double-high-line three-roller-way overlength collision avoidance control method |
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Application publication date: 20170825 |