CN106493172B - A method of it solving Thin Strip Steel and generates fold in batching crossing process - Google Patents
A method of it solving Thin Strip Steel and generates fold in batching crossing process Download PDFInfo
- Publication number
- CN106493172B CN106493172B CN201610965177.4A CN201610965177A CN106493172B CN 106493172 B CN106493172 B CN 106493172B CN 201610965177 A CN201610965177 A CN 201610965177A CN 106493172 B CN106493172 B CN 106493172B
- Authority
- CN
- China
- Prior art keywords
- speed
- strip steel
- thin strip
- batching
- coiling
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2273/00—Path parameters
- B21B2273/06—Threading
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
A method of it solving Thin Strip Steel and generates fold in batching crossing process, belong to technical field of steel rolling.The variation for increasing speed added value under slewing rollers pre-control and crossing process coiling machine direct torque in traditional self-threading tape control method, overcomes since long range threading causes buckling phenomena caused by sideslip；Also ensure efficient rolling rhythm simultaneously.
Description
Technical field
The invention belongs to Steel Rolling Control technical fields, more particularly to cold-strip steel process for producing line in rolling Thin Strip Steel
There is buckling phenomena in double coiling machines, crossing process in threading control system, specifically a kind of solution cold-rolled thin steel strip
Control method.
Background technology
In cold rolling of strip steel process for producing line, fast rolling rhythm is smoothly worn on strip production efficiency and product matter
Occupy important meaning in amount.And the smooth threading of cold-strip steel is the important component of strip production technology, if cannot be into
The smooth threading of row, not only influences the rolling rhythm of production, but also may be caused by the matter of strip buckling problems influence product
Amount.
Cold rolling processing line outlet section coiling machine threading control mainly by turning, clamping and conveying roller, pressure roller, travelling belt, can harmomegathus
The orderly of the equipment such as mandrel, threading platform, strap rolling-assisting device acts to realize the threading function of strip.Cold rolling processing line outlet section is big
It mostly uses double coiling machines (i.e. binary channels) and carries out strip coiling, the main control device schematic diagram of double coiling machine threadings is as shown in Figure 1：
1# turning, clamping and conveyings roller, 1# coiling machines, 1# threading platforms complete batching for the channels 1#；1# turning, clamping and conveyings roller, travelling belt, 2# turn to folder
Roller, 2# threadings platform, 2# coiling machines is sent to complete batching for the channels 2#.
In production, coiling machine threading is to be sent the strip that cross cutting scissors are cut to coiling machine from scissors position with threading speed,
Until coiling machine batches three circles.Before coiling machine threading, all pressure rollers, the pinch roller of outlet section are closed, and then outlet section passes
Dynamic equipment is operated with threading speed.When strip reaches mandrel for recoiling machine position, coiling machine is switched to torque control by speed control
System ensures that former circles of coiling machine compress.After coiling machine batches 3 circle, strap rolling-assisting device is opened, all pressure rollers and pinch roller
It opens, subsequent outlet section speed is switched to constant speed state and normally batches.(self-threading tape controls common tradition strip coiling method
It is as shown in Figure 2 to walk sequence)：
Walk sequence 1：All pressure rollers of outlet section, pinch roller pressure；
Walk sequence 2：Outlet section with threading speed run (such as：Jockey pulley, turning, clamping and conveying roller, coiling machine etc.) coiling machine at this time
It is run with speed control mode；
Walk sequence 3：When taking the lead to reach mandrel for recoiling machine position (position is calculated by speed roller code-disc), coiling machine control
Pattern switching to torque control model, and its speed setting value be threading speed be superimposed an addition speed Δ V, outlet section its
Its drive apparatus speed keeps threading speed constant；
Walk sequence 4：Judge whether coiling machine coiling band steel reaches three circles and Coiler driving device reaches saturation；
Walk sequence 5：Outlet section pressure roller, pinch roller, rolling-assisting device are fully open, while outlet section speed is switched to constant speed state,
Normal speed is carried out to batch；
By above-mentioned 5 step sequences, self-threading tape process terminates.
In normal operation, when strip is thicker, self-threading tape process can be completed well；And in production Thin Strip Steel
When, since scissors to coiling machine are apart from farther out, strip is batched further through two turning, clamping and conveying rollers and travelling belt, sometimes certainly
Dynamic threading cannot be completed well, buckling phenomena can also occur at 1# turning, clamping and conveying rollers.
Its reason is mainly：After the completion of shearing, strip steel head is in immediately below scissors, if scissors are to batching in threading
Machine distance is longer, and strip falls using two sections of travelling belts；It is intermediate and corrected without deviation correcting device；Strip steel head exists in this way
Easily deviate roll line during advancing, when strip steel head reaches coiling machine and coiling machine switches to torque mode, strip is bound to
The tension that setting can be generated immediately, if strip is relatively thin, relatively thin strip under this tension due to strip running deviation easily
There is buckling phenomena at 1# turning, clamping and conveying rollers, if be to continue with batch if can seriously affect the quality batched.
Invention content
The purpose of the present invention is to provide it is a kind of solve scissors apart from coiling machine farther out when, batch Thin Strip Steel due to sideslip
The method for causing to generate buckling phenomena in crossing process；Suitable for the process for producing line threading automation control with similar situation
System can well solve threading buckling phenomena, to solve the problems, such as since coil of strip product is underproof caused by fold.
The present invention has at 2 points：First, in crossing process, when strip steel head will reach mandrel for recoiling machine, open in advance away from
1# turning, clamping and conveying rollers from coiling machine distant place, in this way when coiling machine is switched to direct torque, the tension that strip is generated transmits
To position farther out, strip is avoided to generate fold；The second is strip reaches mandrel for recoiling machine, when coiling machine is switched to direct torque,
Speed added value Δ V is reduced into (after the completion of threading, this added value is restored to normally), reduces impact when switching in this way, together
Sample also reduces the possibility for generating buckling phenomena.Specifically control method is：
During executing former step sequence 2, increase turning, clamping and conveying roller pre-control function, that is, increase step sequence 2 ', is exactly when band steel toe
After portion is by 2# turning, clamping and conveying rollers, away from mandrel for recoiling machine position also have L (L≤400 millimeter) apart from when, open 1# turning, clamping and conveyings
Roller；It executes and increases step sequence 3 ', the value for reducing Δ V is Δ V ' (Δ V '=K* Δ V, K≤90%)；It executes and increases step sequence 4 '；It has
Body control walks sequence：
1, it executes and increases step sequence 2 '；
(1) judge whether strip is Thin Strip Steel (belt steel thickness 0.7mm or less is Thin Strip Steel)；If Thin Strip Steel then judges
For strip steel head away from mandrel for recoiling machine position L, L is selected ranging from≤400 millimeter；
(2) 1# turning, clamping and conveying rollers are opened；
2, it executes and increases step sequence 3 ', take the lead to reach mandrel for recoiling machine position (position is calculated by speed roller code-disc)
When, coiling machine control mode switch to torque control model, and speed is set as Δ V ' values under coiling machine torque mode；Reduce Δ
The value of V is Δ V ' (Δ V '=K* Δ V, K≤90%)；
3, it executes and increases step sequence 4 ', judgement coiling machine coiling band steel reaches three circles and when Coiler driving device reaches saturation, will
Speed added value after being reduced under coiling machine torque mode is restored to normal speed value, Δ V；
4, former step sequence 5 is executed
The present invention is characterized in：By in traditional threading control mode, increasing step sequence 2 ', 3 ', 4 ', solve
Since Thin Strip Steel caused by long range threading leads to the problem of fold.
A method of it solving Thin Strip Steel and generates fold in batching crossing process, step sequence is as follows：
Walk sequence one, all pressure rollers of outlet section, pinch roller pressure；
Walk sequence two, outlet section with threading speed run (such as：Jockey pulley, turning, clamping and conveying roller, coiling machine etc.) it batches at this time
Machine is run with speed control mode；
Judge whether strip is Thin Strip Steel (belt steel thickness 0.7mm or less is Thin Strip Steel)；If Thin Strip Steel then judges strip
Away from mandrel for recoiling machine position L, L is selected ranging from≤400 millimeter on head；Open 1# turning, clamping and conveying rollers；
If not Thin Strip Steel, then carried out using traditional strip coiling method；
When walking sequence three, taking the lead to reach mandrel for recoiling machine position (position is calculated by speed roller code-disc), coiling machine control
Molding formula is switched to torque control model, and speed setting Δ V ' values under coiling machine torque mode (Δ V '=K* Δs V, K≤
90%)；
Step sequence four, judgement coiling machine coiling band steel reach three circles and when Coiler driving device reach saturation, by coiling machine torque
Speed added value after being reduced under pattern is restored to regime values Δ V；
It is fully open to walk sequence five, outlet section pressure roller, pinch roller, rolling-assisting device, while outlet section speed is switched to constant speed state,
It carries out normal speed to batch, until batching completion.
By above-mentioned 5 step sequences, self-threading tape process terminates.
The beneficial effects of the present invention are：By increasing step sequence in threading sequential, promote strip that will contact coiling machine
Shi Tiqian opens 1# turning, clamping and conveying rollers, ensures that strip tension is transmitted to remote position building a moment, eliminates due to running
The buckling phenomena generated at 1# turning, clamping and conveying rollers caused by partially, while speed added value being reduced, and reduces rushing when building
It hits；It ensure that coil of strip smoothly corrugationless threading in this way.This not only ensure that fast rolling rhythm, while also improve product
Quality.
Description of the drawings
Fig. 1 is the main control device schematic diagram of double coiling machine threadings
Fig. 2 is the control flow chart of normal threading
Fig. 3 is the self-threading tape control flow chart of the present invention.
Specific implementation mode
The self-threading tape process that coiling machine is exported with certain company's aluminum-zinc alloy production line below is analyzed, and illustrates to increase steering
Control effect after pinch roller pre-control function and reduction speed added value.
In production process, after the completion of preparation sequential is batched in outlet, by common self-threading tape control flow (as shown in Figure 2)
Self-threading tape is carried out, when batching 0.7mm thickness strips below with 2# coiling machines, 2# mandrel for recoiling machine position is reached in strip steel head
It sets and coiling machine is switched to during direct torque, it is evident that generating general distance in the transmission side of 1# turning, clamping and conveying rollers is
2 meters of fold.Buckling phenomena is generated it can be seen that batching in interior a few circles in continuing coiling process, severely impacts and batches matter
Amount.It is such happen after, can only stop manually cut strip.
In common self-threading tape walks sequence, it is added to 1# turning, clamping and conveyings roller pre-control function and crossing process coiling machine turns
The method that addition speed value is reduced under square pattern；The buckling phenomena generated in crossing process is eliminated, ensure that self-threading tape control
Process processed is smoothed out.
It specifically controls and is：
1. the processing of code-disc data：Code-disc selected by speed roller is PI_HOG1024, i.e., it is 1024 that code-disc rotation, which is turned around,
A code value, the reduction ratio of speed roller are 20.401, a diameter of 1000 millimeters of speed roller；Then a code value of speed roller is corresponding
Distance is 0.1504 millimeter ((3.1416*1000)/(1024*20.401)=0.1504).
2. the physical location of mandrel for recoiling machine calculates：The 2# turning, clamping and conveyings roll spacing of this producing line immediately below the scissors with a distance from be
11200 millimeters, the roll spacing of 2# turning, clamping and conveyings is 3300 millimeters from mandrel for recoiling machine vertical range, and horizontal distance is 3000 millimeters, can
Mandrel distance is reached as 15600 millimeters from scissors so that strip steel head is calculated by geometrical relationship.
3. in crossing process, when going to former step sequence 2, executing and increasing step sequence 2 '；
(1) judge whether belt steel thickness is less than or equal to 0.7mm；Judge strip steel head away from mandrel for recoiling machine position L, select away from
At 400 millimeters from mandrel for recoiling machine, 1# turning, clamping and conveying rollers are opened, that is, judge that strip steel head is less than or equal to from scissors travel distance
When 15200 millimeters (15600 millimeters -400 millimeters)；
(2) 1# turning, clamping and conveying rollers are opened；
4. executing step sequence 3 ', coiling machine is switched to the Δ V ' values after additional one of speed setting value under torque mode reduces；
Former Δ V=15m/min selectes K=70%, then Δ V '=10.5m/min after reducing
5. execute step sequence 4 ', judgement coiling machine coiling band steel reaches three circles and after Coiler driving device reaches saturation, will batch
The speed added value 10.5m/min reduced under machine torque mode is restored to regime values 15m/min.
6. outlet section pressure roller, pinch roller, rolling-assisting device are fully open, while outlet section speed is switched to constant speed state, carries out
Normal speed is batched.
It is put into practice by field application, if carry out 2# coiling machine threadings using former control system, when belt steel thickness is in 0.7mm
When following, almost 100% threading buckling phenomena is generated；1# coiling machines can only be selected to carry out threading.When being used in crossing process
After new control method, 100% complete the self-threading tape function of strip corrugationless.
Conclusion：The present invention increases turning, clamping and conveying roller pre-control and coiling machine on the basis of common self-threading tape controls
Speed added value under torque control model reduces function, overcomes Thin Strip Steel in long range crossing process due to no correction
Equipment causes strip running deviation, caused threading buckling phenomena；It ensure that the inner ring of steel coil corrugationless in crossing process.
Claims (3)
1. a kind of method for solving Thin Strip Steel and generating fold in batching crossing process, it is characterised in that：
Walk sequence one, all pressure rollers of outlet section, pinch roller pressure；
It walks sequence two, outlet section to run with threading speed, 2# coiling machines are run with speed control mode at this time；
Judge strip steel head away from 2# mandrel for recoiling machine position L, L is selected ranging from≤400 millimeter；Open 1# turning, clamping and conveying rollers；
When walking sequence three, taking the lead to reach the mandrel for recoiling machine positions 2#, 2# coiling machines control mode switch to torque control model, 2# volumes
Take speed added value Δ V ' under machine torque mode；
Step sequence four, judgement 2# coiling machine coiling band steels reach three circles and when 2# Coiler driving devices reach saturation, and 2# coiling machines are turned
Speed added value Δ V ' after being reduced under square pattern is restored to normal speed added value Δ V；
It is fully open to walk sequence five, outlet section pressure roller, pinch roller, rolling-assisting device, while outlet section speed is switched to constant speed state, carries out
Normal speed is batched, until batching completion.
2. solving the method that Thin Strip Steel generates fold in batching crossing process as described in claim 1, it is characterised in that：Institute
The Thin Strip Steel stated refers to that belt steel thickness 0.7mm or less is Thin Strip Steel.
3. solving the method that Thin Strip Steel generates fold in batching crossing process as described in claim 1, it is characterised in that：Institute
The Δ V ' stated=K* Δ V, K≤90%, wherein Δ V are normal speed added value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965177.4A CN106493172B (en) | 2016-11-04 | 2016-11-04 | A method of it solving Thin Strip Steel and generates fold in batching crossing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965177.4A CN106493172B (en) | 2016-11-04 | 2016-11-04 | A method of it solving Thin Strip Steel and generates fold in batching crossing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106493172A CN106493172A (en) | 2017-03-15 |
| CN106493172B true CN106493172B (en) | 2018-08-03 |
Family
ID=58322758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610965177.4A Active CN106493172B (en) | 2016-11-04 | 2016-11-04 | A method of it solving Thin Strip Steel and generates fold in batching crossing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106493172B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110052507B (en) * | 2019-04-24 | 2020-12-15 | 首钢集团有限公司 | Strip steel coiling thickness control method and device |
| CN111471949A (en) * | 2020-03-09 | 2020-07-31 | 包头钢铁（集团）有限责任公司 | Control method for strip steel pumping of outlet loop of galvanizing unit |
| CN113290076B (en) * | 2021-04-29 | 2022-11-15 | 邯郸钢铁集团有限责任公司 | Control method for improving threading efficiency of hot galvanizing outlet double-coiler |
| CN114178343B (en) * | 2021-11-17 | 2024-04-12 | 首钢智新迁安电磁材料有限公司 | Control method for winding folds of thin strip steel band head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303323A (en) * | 1999-03-25 | 2001-07-11 | 川崎制铁株式会社 | Method of winding strips |
| EP2087948A1 (en) * | 2006-11-20 | 2009-08-12 | Mitsubishi-Hitachi Metals Machinery, Inc. | Cold rolled material production equipment and cold rolling method |
| CN103480688A (en) * | 2013-09-22 | 2014-01-01 | 首钢京唐钢铁联合有限责任公司 | Strip steel head end coiling method |
-
2016
- 2016-11-04 CN CN201610965177.4A patent/CN106493172B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1303323A (en) * | 1999-03-25 | 2001-07-11 | 川崎制铁株式会社 | Method of winding strips |
| EP2087948A1 (en) * | 2006-11-20 | 2009-08-12 | Mitsubishi-Hitachi Metals Machinery, Inc. | Cold rolled material production equipment and cold rolling method |
| CN103480688A (en) * | 2013-09-22 | 2014-01-01 | 首钢京唐钢铁联合有限责任公司 | Strip steel head end coiling method |
Non-Patent Citations (1)
| Title |
|---|
| 国丰1450热连轧生产线卷取叠头分析与改进;杨涛等;《河北冶金》;20160229(第2期);第60-63页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106493172A (en) | 2017-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106493172B (en) | A method of it solving Thin Strip Steel and generates fold in batching crossing process | |
| CN103372583B (en) | Control method of hot rolling coiling tension | |
| CN104971946B (en) | Strip tail positioning control method of cold continuous rolling coiler | |
| CN104107837B (en) | The method of accurate control cincture steel percentage elongation when weld seam crosses planisher | |
| CN106807761A (en) | A kind of new plate rolling side guide control method of hot-strip | |
| CN105251780B (en) | Control method for ductility fluctuation of temper mill | |
| CN203470539U (en) | Recoiling unit | |
| CN105013859A (en) | Method for reducing head towers of hot-rolled steel coils | |
| CN104759488A (en) | Method for realizing sectional control during steel passing process of hot-rolled strip steel coiling side guide plate | |
| CN110918654B (en) | Threading control method and device | |
| CN104043685A (en) | Method and device for controlling instant steel biting of pinch roll of coiling machine | |
| CN105834244A (en) | Method for correcting stepping control of wrapper roller of coiler | |
| CN104338753B (en) | A kind of dynamic variable specification control method of cold continuous rolling | |
| CN106181137B (en) | A kind of hot-galvanizing machine welding machine pinch roll apparatus and its bond-allocating method | |
| CN110314939A (en) | A kind of strip steel head levelling method carried out using skin pass mill group | |
| CN106391723A (en) | Double coiling speed switching and tension establishing method for cold continuous mill | |
| CN102671958A (en) | Method for controlling tail of band steel by using pinch roller | |
| CN113680827A (en) | Method for lifting cold-rolled thin high-reduction-rate high-strength steel after strip breakage | |
| CN102389897A (en) | Rolling method used for rolling strip steel of reversible mill | |
| CN102601165B (en) | Control method for small-tension tape penetrating | |
| CN105458704A (en) | Roller shear steel core production line and roller shear steel core machining process | |
| CN202824106U (en) | Anti-wrinkle roller constant pressure follow-up control device for metal strip temper mill unit | |
| CN106311802A (en) | Carrousel coiler mandrel clamped coil discharge controlling method | |
| CN104259220A (en) | Variable coefficient loop control method | |
| CN106493182A (en) | Rustless steel tandem rolling outlet section equipment and its continuous rolling process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | 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 |