CN108817104B - A kind of hot rolling and leveling machine working roll roll shifting position detecting method - Google Patents
A kind of hot rolling and leveling machine working roll roll shifting position detecting method Download PDFInfo
- Publication number
- CN108817104B CN108817104B CN201810579982.2A CN201810579982A CN108817104B CN 108817104 B CN108817104 B CN 108817104B CN 201810579982 A CN201810579982 A CN 201810579982A CN 108817104 B CN108817104 B CN 108817104B
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- China
- Prior art keywords
- roll
- working roll
- roll shifting
- shifting position
- shifting
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/02—Roll bending; vertical bending of rolls
- B21B2269/04—Work roll bending
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/12—Axial shifting the rolls
- B21B2269/14—Work rolls
Abstract
A kind of hot rolling and leveling machine working roll roll shifting position detecting method belongs to hot rolling producing line finishing automation control area.The present invention solves performing effectively automatically for working roll roll shifting, while without human intervention, eliminating the hidden danger that personal safety accident occurs.By the present invention in that the automatic roll shifting function of working roll is realized instead of the original roll shifting position for detecting upper and lower working roll close to switch in the roll shifting position for detecting just curved pressure sensor detection working roll with bending system.After new detection mode, human intervention is no longer needed in roll shifting implementation procedure, the working roll roll shifting time can be greatly lowered, and then improve the automatic roll shifting execution efficiency of planisher working roll, improve the yield and product quality of skin pass mill group.
Description
Technical field
The invention belongs to hot rolling producing line finishing automation control areas, are particularly suitable for hot rolling and leveling machine working roll roll shifting position
Detection.
Background technique
With the fast development of market economy, user is to Surfaces of Hot Rolled Strip quality, plate shape effect, delivery form, mechanics
Performance etc. proposes higher requirement.Therefore, more next as the flattening process of hot rolling technique last procedure
More highlight its importance.
Hot-rolled leveling unit is in normal leveling operation production process, with the extension of working roll roller phase, steel edge portion relatively in
The serious wear in portion is easily presented " W " shape uneven wear in steel edge portion, causes working roll edge groove occur, cause strip
The unstability of Strip Shape Control.With the increasingly strict of strip surface quality requirement, because there is fatigability tangerine in work roll for temper mill roll surface
Skin shape reticulate pattern defect causes the orange peel shape roll marks of belt steel surface, is unable to satisfy customer demand.In leveling operation production process, work
It is shorter to make the roller roll change period, and the work roll for temper mill roll change period seriously affects skin pass mill group production efficiency less than 500 tons, while big
The labor intensity of amplitude increase operator.Accordingly, it is considered to realize the automatic roll shifting function of working roll, even roller consumption improves plate shape
Ability of regulation and control and reduction orange peel shape roll marks occurrence frequency, to improve skin pass mill group integrated production capacity.
Previous automatic roller shifting method is to use in roll shifting position close to switch detection, by welding a block on bearing cap,
Upper and lower working roll is approached switch to roll shifting position backstop and detects, decides that and reaches roll shifting position.The roller end but every set works
Lid installation position is equipped with certain deviation, just there is deviation when causing actually detected, cannot hold completely when executing roll shifting program automatically
Row finishes, and needs maintenance personnel that scene is gone to check physical location, and artificial triggering reduces the effect of production close to switch detection
Rate.Therefore, it is badly in need of proposing a kind of easily and efficiently planisher working roll roll shifting position detecting method.
Summary of the invention
The present invention proposes a kind of planisher working roll roll shifting position detecting method, additionally increases the same of detection component no
When, two sets of different system roll shifting systems and bending system are contacted.In this way, on the one hand can guarantee work
Roller roll shifting performs effectively automatically, while without human intervention, eliminating the hidden danger that personal safety accident occurs.
A kind of hot rolling and leveling machine working roll roll shifting position detecting method passes through roller when upper and lower working roll roll shifting position investment
Cylinder promotes upper and lower working roll, and the just curved pressure of just curved system increases accordingly, and when just curved pressure is greater than 80bar, investment is altered
Weighing apparatus is rolled out, working roll reaches roll shifting position；When just curved pressure is less than 10bar, revocation roll shifting balance, working roll leaves roll shifting position；
The just curved pressure detects just curved pressure sensor by bending system and detects.
Bending system includes just curved and bears curved, and the control of bending system passes through control by the way that 32 roll-bending cylinders are realized on E type block
Corresponding roll-bending cylinder is made to realize just curved and bear curved function.Positive and negative roller setting value comes from MMI pass schedule, can be led to by operator
The relevant selector of master console is crossed to change manually.
The present invention has the advantages that in the case where not needing additionally to increase detection component, by optimizing hot-rolled leveling
Machine working roll roll shifting position detecting method, working roll automatic roll shifting execution time are reduced to 4min by previous 8min, significantly drop
Low roll shifting executes the time, improves the success rate of the automatic roll shifting of planisher；On the other hand, optimized by this, increase working roll
Roll shifting puts into frequency, to improve production efficiency, is all very beneficial to promotion product yield and product quality.
Detailed description of the invention
Fig. 1 is planishing mill roll shifting original detection mode.
Fig. 2 is the new detection mode of planishing mill roll shifting.
1 is top working roll roll shifting position close to switch, and 2 be E type block, and 3 be bottom working roll roll shifting position close to switch, and 4 be roller
Cylinder, 5 retract control oil circuit for roller bar side, and 6 be top working roll balance and just curved control oil circuit, and 7 balance and bear for bottom working roll
Curved control oil circuit, 8 are positive curved press detection sensor, and 9 be main oil feeding line.
Specific embodiment
Roll shifting step are as follows: (1) working roll equilibrium state is closed, and roll-bending cylinder retracts；(2) HGC cylinder is opened to dominant bit；(3)
Working roll investment roll shifting is balanced to roll shifting position；(4) upper and lower working roll horizontal looseness；(5) working roll revocation roll shifting balance, which is left, alters
Roller position；(6) working roll balance investment；(7) work roller gap opens 20mm；(8) working roll roll shifting terminates.
By analyzing working roll roll shifting process, previous detection roll shifting position mode is passed through in step (3) and step (5)
Close to switch detection roll shifting position, leave roll shifting position.The present invention is replaced using the pressure sensor of bending system close to switch detection
Roll shifting position promotes upper and lower working roll by roll-bending cylinder when the upper and lower working roll roll shifting position investment of step (3), just curved accordingly
The just curved increase of system thinks that putting into roll shifting balances when just curved pressure is greater than 80bar, and working roll reaches roll shifting position.It is less than
Think to cancel roll shifting balance when 10bar, working roll leaves roll shifting position.This pressure detects just curved pressure sensing by bending system
Device detection, the optimal value that this value is obtained by the different data comparison of trend monitoring history, this value explanation can promote working roll
In place or it is restored to the pressure value of initial bit.
Claims (3)
1. a kind of hot rolling and leveling machine working roll roll shifting position detecting method, it is characterised in that: when upper and lower working roll roll shifting position is put into
When, promote upper and lower working roll by roll-bending cylinder, the just curved pressure of just curved system increases accordingly, when just curved pressure is greater than upper
When pressure threshold, investment roll shifting balance, working roll reaches roll shifting position；When just curved pressure is less than lower pressure threshold, roll shifting is cancelled
Balance, working roll leave roll shifting position.
2. detection method as described in claim 1, it is characterised in that: the just curved pressure is detected just curved by bending system
Pressure sensor detection.
3. detection method as described in claim 1, it is characterised in that: the upper pressure threshold is 80bar, the pushing
Force threshold is 10bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579982.2A CN108817104B (en) | 2018-06-07 | 2018-06-07 | A kind of hot rolling and leveling machine working roll roll shifting position detecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810579982.2A CN108817104B (en) | 2018-06-07 | 2018-06-07 | A kind of hot rolling and leveling machine working roll roll shifting position detecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108817104A CN108817104A (en) | 2018-11-16 |
| CN108817104B true CN108817104B (en) | 2019-10-08 |
Family
ID=64144332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810579982.2A Active CN108817104B (en) | 2018-06-07 | 2018-06-07 | A kind of hot rolling and leveling machine working roll roll shifting position detecting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108817104B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61219822A (en) * | 1985-03-27 | 1986-09-30 | Nippon Kokan Kk <Nkk> | Rolling roll displacement correcting apparatus in measurement of rolling roll profile |
| JPH0777646B2 (en) * | 1987-01-22 | 1995-08-23 | 三菱重工業株式会社 | Cross angle zero adjustment method for cross roll type rolling mill |
| CN101185942B (en) * | 2007-12-25 | 2010-06-02 | 二重集团（德阳）重型装备股份有限公司 | Roller mill roll bending and shifting device |
| CN101733285B (en) * | 2008-11-05 | 2011-11-16 | 中冶赛迪工程技术股份有限公司 | Temper mill with roll bending and shifting functions |
| CN105436215B (en) * | 2015-12-08 | 2018-10-30 | 北京首钢冷轧薄板有限公司 | A kind of CVC roll shiftings attachment device operating position detection method |
| CN107289852A (en) * | 2016-04-04 | 2017-10-24 | 鞍钢股份有限公司 | A kind of rolling-mill middle roller roll shifting position-measurement device and method |
| CN106623442B (en) * | 2016-12-22 | 2018-11-02 | 北京首钢股份有限公司 | A kind of on-line automatic roller shifting method of planisher working roll and control device |
-
2018
- 2018-06-07 CN CN201810579982.2A patent/CN108817104B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108817104A (en) | 2018-11-16 |
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