CN106938282A - Bar wire rod rolling mill speed-adjusting and control system and method - Google Patents
Bar wire rod rolling mill speed-adjusting and control system and method Download PDFInfo
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- CN106938282A CN106938282A CN201710238840.5A CN201710238840A CN106938282A CN 106938282 A CN106938282 A CN 106938282A CN 201710238840 A CN201710238840 A CN 201710238840A CN 106938282 A CN106938282 A CN 106938282A
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- 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
- B21B37/46—Roll speed or drive motor control
Abstract
The present invention discloses a kind of bar wire rod rolling mill speed-adjusting and control system, includes detection subsystem, controller and the milling train speed governing subsystem for adjusting each mill milling speed of the adjacent bar inspection spacing of detection；Wherein, detection subsystem is used to detect the distance between adjacent two bar；Controller is used for the detection data of receiving detection device, calculates each mill milling speed strategy according to detection data and sends the order for adjusting each mill milling speed；Milling train speed governing subsystem is used to receiving the speed governing order that controller sends and according to the mill speed of order adjustment correspondence milling train；Detect that subsystem includes some detection means, each detection means is separately mounted to the front of the entrance of correspondence milling train, and each detection means is connected with controller communication, controller and the connection of milling train speed governing subsystem controls.The present invention can detect the distance between adjacent two Bar Wire Product in real time and be adjusted in real time, make rolling rhythm compact.
Description
Technical field
The present invention relates to a kind of bar wire rod rolling mill speed-adjusting and control system and method.
Background technology
Visual plant in steel manufacture process, Modern Rolling Mill development trend be serialization, automation, specialization,
Product quality is high, consumes low.The new milling method such as continuous casting and rolling, controlled rolling, and the new product quality of adaptation are required and carried
The milling train of the various special constructions of high economic benefit is all in fast development.
Milling equipment is general in itself to carry out speed governing and control by middle pressure transmission device.The development of mill drive device base
This maturation, disclosure satisfy that milling train work and speed governing demand, but its control object be milling train in itself, be such control level
The device level for belonging to L1 grades is controlled, and the control of production process is not related to.The optimal control of current production aspect has milling train cascade
The modes such as speed governing, such mode can be coordinated to the cooperating of Duo Tai mill drives mechanism.
With the continuous improvement of production requirement, rolling line yield how is improved, improving utilization rate of equipment and installations turns into what is become more and more important
Problem.If the rolling gap between blank can be reduced, uninterrupted rolling is realized, the production of steel rolling just can be largely improved
Amount.And it is the shortening for realizing rolling gap, it is very necessary to milling train progress speed regulating control from rhythm of production.
The content of the invention
Regarding to the issue above, the present invention provides a kind of bar wire rod rolling mill governing system in reasonable controlled rolling gap.
To reach the adjacent bar inspection spacing of above-mentioned purpose, bar wire rod rolling mill speed-adjusting and control system of the present invention, including detection
Detect the milling train speed governing subsystem of subsystem, controller and each mill milling speed of regulation；
Wherein, the detection subsystem is used to detect the distance between adjacent two bar；
The controller is used for the detection data for receiving the detection means, and calculating each milling train according to the detection data rolls
Speed strategy processed simultaneously sends the order for adjusting each mill milling speed；
The milling train speed governing subsystem is used to receiving the speed governing order that the controller sends and according to the order adjustment
The mill speed of correspondence milling train；
The detection subsystem includes some detection means, and each detection means is separately mounted to the entrance of correspondence milling train
Front, each detection means is connected with the controller communication, the controller and the milling train speed governing subsystem controls
Connection.
Further, the detection subsystem is infrared CCD detecting system, video detection system or thermometal detection system
System.
Further, two detection means are arranged at intervals with front of each milling train, the detection means is arranged on two axles
Electric platform on, be provided with encoder on the output shaft of two motors of the electric platform, encoder described in two
It is connected with head computing device communication, the head computing device is connected with the controller communication.
Further, two motors of the electric platform and the controller controlled connection, the controller control
Making the electric platform drives the detection means to follow the trail of bar.
Further, the milling train speed governing subsystem includes the speed changer being arranged on each milling train, the speed changer
Including the first spur gear with the drive connection of the drive mechanism of roll and the second spur gear being connected with roll, described first
Spur gear and second spur gear are driven by one with the gear box that the case of transmission is slidably connected, the gear box bag
Include interior rotation and be connected with two bevel gears, the taper of described two bevel gears is identical, and the direction of two bevel gear is on the contrary, described
Two bevel gears engage with first and second spur gear respectively；
The gear box is connected with the piston rod of a hydraulic cylinder, and an electromagnetism is provided with the oil supply pipe of the hydraulic cylinder
Valve, the magnetic valve and the controller controlled connection.
Further, the bevel gear includes core body, and the outer surface of the core body is provided with some grooves, the groove
Ball is provided with, the outer surface of the core body, which is provided with housing, the housing, is provided with some through holes, the ball passes through
The through hole spills the housing.
Bar wire rod rolling mill governing system of the present invention proposes a kind of system for optimizing rolling rhythm, improves mill speed；It is logical
Cross detection pieces of bar stock to be spaced end to end, finely tune the velocity interpolation between each rolling mill, increase the yield of rolling line；By supervising in real time
Survey, be easy to find produced problem in the operation of rolling, be favorably improved product quality.
The present invention carries out complex optimum and control by advanced detection means to the milling train course of work.To multi rack bar
Milling train carries out Comprehensive Control, to realize the Collaborative Control between the optimal control of production procedure and multiple devices.By detecting subsystem
The setting of system, realizes the monitoring and analysis to rolling bar process, constructs complete feedback mechanism, be vehicle air-conditioning.
Regarding to the issue above, the present invention provides a kind of bar wire rod rolling mill speed regulating method in reasonable controlled rolling gap.
To reach above-mentioned purpose, bar wire rod rolling mill method for controlling speed regulation of the present invention,
Detect the distance between the head of previous Bar Wire Product and the afterbody of latter Bar Wire Product；
If the distance measured is not in predetermined threshold range, adjusts the mill speed of latter milling train and pass through level joint control
The mill speed of each milling train after the latter milling train of Developing Tactics processed；Or, adjust the mill speed of previous milling train and pass through level
The mill speed of each milling train before the previous milling train of joint control Developing Tactics；
If the distance measured is in predetermined threshold range, each milling train is controlled to be rolled with present speed.
Further, in detection process, detected using the detection method of infrared CCD, video detecting method or thermometal
Method.
Further, comprising the following steps that in detection process：
Follow the trail of the position end to end of adjacent two Bar Wire Product respectively using two detection means；
By the position end to end of the luffing angle of two detection means, horizontal rotation angle and adjacent two Bar Wire Product current
The position of frame calculates the position of the position end to end of adjacent two bar in a coordinate system,
The distance between adjacent two Bar Wire Product is calculated by the position of the position end to end of adjacent two Bar Wire Product in a coordinate system.
Further, the control method also includes adjustment selection step, and its specific method is as follows：
Obtain and compare the milling train quantity before current detection device and the amount detection after current detection device；
If the milling train quantity before current detection device is less than the milling train quantity after current detection device, adjustment is current
Mill milling speed before detection means；
If the milling train quantity before current detection device is more than the milling train quantity after current detection device, adjustment is current
Mill milling speed after detection means.
Bar wire rod rolling mill speed regulating method of the present invention proposes a kind of method for optimizing rolling rhythm, improves mill speed；It is logical
Cross detection pieces of bar stock to be spaced end to end, finely tune the velocity interpolation between each rolling mill, increase the yield of rolling line；By supervising in real time
Survey, be easy to find produced problem in the operation of rolling, be favorably improved product quality.
The present invention carries out complex optimum and control by advanced detection means to the milling train course of work.To multi rack bar
Milling train carries out Comprehensive Control, to realize the Collaborative Control between the optimal control of production procedure and multiple devices.By detecting subsystem
The setting of system, realizes the monitoring and analysis to rolling bar process, constructs complete feedback mechanism, be vehicle air-conditioning.
Brief description of the drawings
Fig. 1 is the system layout of the embodiment 1 of bar wire rod rolling mill speed-adjusting and control system of the present invention.
Embodiment
With reference to Figure of description, the present invention will be further described.
In technical scheme, it is forward and backward be using the flow of rolling as reference, before the direction where raw material is, into
After direction where product is.
Embodiment 1
The present embodiment provides a kind of bar wire rod rolling mill speed-adjusting and control system, includes detection of the adjacent bar inspection spacing of detection
The milling train speed governing subsystem of system, controller and each mill milling speed of regulation；
Wherein, the detection subsystem is used to detect the distance between adjacent two bar；
The controller is used for the detection data for receiving the detection means, and calculating each milling train according to the detection data rolls
Speed strategy processed simultaneously sends the order for adjusting each mill milling speed；
The milling train speed governing subsystem is used to receiving the speed governing order that the controller sends and according to the order adjustment
The mill speed of correspondence milling train；
The detection subsystem includes some detection means, and each detection means is separately mounted to the entrance of correspondence milling train
Front, each detection means is connected with the controller communication, the controller and the milling train speed governing subsystem controls
Connection.
In the present embodiment, the distance between adjacent two Bar Wire Product is detected by the way of existing video detection, also, regard
Interval location between the Bar Wire Product of frequency detection means real-time tracing two.
Milling train speed governing subsystem can use variable speed electric motors, particularly, variable speed electric motors, particularly driving roll rotation, controller control speed change electricity
The rotating speed of machine.
The controller that controller be able to can be programmed from single-chip microcomputer, computer etc..
Below so that 2 pieces of bar stock carry out tandem rolling operation by 3 rolling mills as an example, the present embodiment is illustrated：
Basic control flow is as follows：
S1：Bar 1 and bar 2 continuous rolling on rolling line, the distance before feed mill between two bars are setpoint distance；
S2：Bar 1 is introduced into milling train 1, and due to the cold draw after rolling, the length of bar 1 is now examined by video
Distance surveying 1 two bar is detected, detecting distance parameter is sent into flow logic controller；
S3：Whether flow logic controller judging distance is suitable, if its hypotelorism, according to setting rule, calculates
Go out the speed regulated quantity of milling train 1；
S4：The speed regulated quantity of milling train 1 is issued in milling train speed adjusting gear 1 by flow logic controller, passes through the governor
Structure, changes the mill speed of milling train 1；
S5：With the continuation of production, bar 1 by milling train 1, is just rolled in milling train 2, and bar 2 rolls
Rolled in machine 1, now detected by the distance two bars of video detection 2, detecting distance parameter is sent to
Flow logic controller；
S6：Whether flow logic controller judging distance is suitable, if its hypotelorism, according to setting rule, calculates
Go out the speed regulated quantity of milling train 1 and milling train 2；
S7：The speed regulated quantity of milling train 1 and milling train 2 is issued to milling train speed adjusting gear 1 and milling train by flow logic controller
In speed adjusting gear 2, by speed adjusting gear, change the mill speed of milling train 1 and milling train 2；
S8：The follow-up same S5~S7 of rolling speed regulating control process for arriving milling train 3；
S9：When more with blank continuous rolling, then the speed for adjusting 3 rolling mills simultaneously by flow logic controller is joined
Number, so as to realize the comprehensive speed regulating control of rolling bar production.
The present embodiment bar wire rod rolling mill governing system proposes a kind of system for optimizing rolling rhythm, improves mill speed；
By detecting that pieces of bar stock is spaced end to end, the velocity interpolation between each rolling mill is finely tuned, the yield of rolling line is increased；By real-time
Monitoring, is easy to find produced problem in the operation of rolling, is favorably improved product quality.
The present embodiment carries out complex optimum and control by advanced detection means to the milling train course of work.To multi rack rod
Material milling train carries out Comprehensive Control, to realize the Collaborative Control between the optimal control of production procedure and multiple devices.By detecting son
The setting of system, realizes the monitoring and analysis to rolling bar process, constructs complete feedback mechanism, be on-line optimization control
System.
Embodiment 2
A kind of bar wire rod rolling mill speed-adjusting and control system is provided in the present embodiment, the difference with embodiment 1 is：This
Two thermometal detection means are arranged at intervals with front of each milling train of embodiment, the thermometal detection means is arranged on two
On the electric platform of axle, encoder is provided with the output shaft of two motors of the electric platform, is encoded described in two
Device is connected with head computing device communication, and the head computing device is connected with the controller communication.
Two motors of the electric platform and the controller controlled connection, the controller control are described electronic
Head drives the thermometal detection means to follow the trail of bar.
Two thermometal detection means in the present embodiment follow the trail of the position end to end of two Bar Wire Products respectively, then, pass through
The state of two heads and two the bars position that position is imaged end to end, calculate the position end to end of two Bar Wire Products in the position of coordinate system
Put, distance between the two is then calculated again.
Two Bar Wire Products are followed the trail of respectively using two thermometal detection means in the present embodiment, when between two Bar Wire Products
Apart from it is excessive when, still accurately can follow the trail of and calculate both distance, be not in one of Bar Wire Product in areas imaging
Outside situation.
Embodiment 3
The present embodiment and the difference of embodiment 1 are：The milling train speed governing subsystem includes being arranged on each described roll
Speed changer on machine, the speed changer includes the first spur gear being connected with the drive mechanism of roll and is driven with roll to connect
What the second spur gear connect, first spur gear and second spur gear were slidably connected by one with the case of transmission
Gear box is driven, and the gear box includes interior rotation and is connected with two bevel gears, and the taper of described two bevel gears is identical, described
The direction of two bevel gears is on the contrary, two bevel gear engages with first and second spur gear respectively；
The gear box is connected with the piston rod of a hydraulic cylinder, and an electromagnetism is provided with the oil supply pipe of the hydraulic cylinder
Valve, the magnetic valve and the controller controlled connection.
Because two gears in gear box are engaged towards opposite direction, now, the plane of the axis determination of two gears
On bus be parallel to each other, and two gears are meshed with the first spur gear and the second spur gear respectively, so, when promoting the biography
During dynamic box, the bevel gear position engaged with the first spur gear and the second spur gear can change, so that change transmission ratios, it is real
The speed governing of existing milling train.
The bevel gear of the present embodiment can also install as follows, and the bevel gear includes core body, the core body
Outer surface be provided with some grooves, the groove and be provided with ball, the outer surface of the core body is provided with housing, the shell
It is provided with some through holes on body, the ball spills the housing by the through hole.
The gear teeth are used as by prominent ball, the purpose of transmission is equally reached, and when promoting gear box, ball can be sent out
Raw to rotate, required motive force is greatly reduced.
Embodiment 4
The present embodiment is that this implementation is detected using infrared CCD with the difference of embodiment 1.
The present embodiment provides a kind of bar mill speed-adjusting and control system based on infrared CCD, and the system is examined including infrared CCD
Survey device, flow logic controller, executing agency's governing system.
So that 2 pieces of bar stock carry out tandem rolling operation by 3 rolling mills as an example, the present embodiment is illustrated：
Basic control flow is as follows：
S1：Bar 1 and bar 2 continuous rolling on rolling line, the distance before feed mill between two bars are setpoint distance；
S2：Bar 1 is introduced into milling train 1, due to the cold draw after rolling, the length of bar 1, now by infrared
Distance CCD monitors 1 two bar is detected, detecting distance parameter is sent into flow logic controller；
S3：Whether flow logic controller judging distance is suitable, if its hypotelorism, according to setting rule, calculates
Go out the speed regulated quantity of milling train 1；
S4：The speed regulated quantity of milling train 1 is issued in milling train speed adjusting gear 1 by flow logic controller, passes through the governor
Structure, changes the mill speed of milling train 1；
S5：With the continuation of production, bar 1 by milling train 1, is just rolled in milling train 2, and bar 2 rolls
Rolled in machine 1, the distance now monitoring 2 two bars by infrared CCD is detected, detecting distance parameter is sent
To flow logic controller；
S6：Whether flow logic controller judging distance is suitable, if apart from improper, calculating milling train 1 and milling train 2
Speed regulated quantity；
S7：The speed regulated quantity of milling train 1 and milling train 2 is issued to milling train speed adjusting gear 1 and milling train by flow logic controller
In speed adjusting gear 2, by speed adjusting gear, change the mill speed of milling train 1 and milling train 2；
S8：The follow-up same S5~S7 of rolling speed regulating control process for arriving milling train 3；
S9：When more with blank continuous rolling, then the speed for adjusting 3 rolling mills simultaneously by flow logic controller is joined
Number, so as to realize the comprehensive speed regulating control of rolling bar production.
Embodiment 4
The present embodiment provides a kind of bar wire rod rolling mill method for controlling speed regulation, specific as follows：Detected using video detecting method
The distance between afterbody of the head of previous Bar Wire Product and latter Bar Wire Product；
If the distance measured is not in predetermined threshold range, adjusts the mill speed of latter milling train and pass through level joint control
The mill speed of each milling train after the latter milling train of Developing Tactics processed；Or, adjust the mill speed of previous milling train and pass through level
The mill speed of each milling train before the previous milling train of joint control Developing Tactics；
If the distance measured is in predetermined threshold range, each milling train is controlled to be rolled with present speed.
When adjusting the mill speed of each milling train, it can be counted using the computational methods in existing cascade method for controlling speed regulation
The relation between the speed adjustment amplitude of each milling train is calculated, after calculating is finished, controls each milling train to carry out the tune of mill speed
It is whole.
In the present embodiment, adjustment selection step is also included before adjustment mill milling speed, its specific method is as follows：
Obtain and compare the milling train quantity before current detection device and the amount detection after current detection device；
If the milling train quantity before current detection device is less than the milling train quantity after current detection device, adjustment is current
Mill milling speed before detection means；
If the milling train quantity before current detection device is more than the milling train quantity after current detection device, adjustment is current
Mill milling speed after detection means.
The present embodiment bar wire rod rolling mill speed regulating method proposes a kind of method for optimizing rolling rhythm, improves mill speed；
By detecting that pieces of bar stock is spaced end to end, the velocity interpolation between each rolling mill is finely tuned, the yield of rolling line is increased；By real-time
Monitoring, is easy to find produced problem in the operation of rolling, is favorably improved product quality.
The present embodiment carries out complex optimum and control by advanced detection means to the milling train course of work.To multi rack rod
Material milling train carries out Comprehensive Control, to realize the Collaborative Control between the optimal control of production procedure and multiple devices.By detecting son
The setting of system, realizes the monitoring and analysis to rolling bar process, constructs complete feedback mechanism, be on-line optimization control
System.
Certainly, adjacent two rod can also be detected using infrared CCD detection method or thermometal detection method in the present embodiment
The distance between wire rod.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, and it is any to be familiar with sheet
Those skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in should all be covered
Within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should be defined by claim is defined.
Claims (10)
1. a kind of bar wire rod rolling mill speed-adjusting and control system, it is characterised in that：Including detecting that adjacent bar examines the detection subsystem of spacing
The milling train speed governing subsystem of system, controller and each mill milling speed of regulation；
Wherein, the detection subsystem is used to detect the distance between adjacent two bar；
The controller is used for the detection data for receiving the detection means, and each mill milling speed is calculated according to the detection data
Degree strategy simultaneously sends the order for adjusting each mill milling speed；
The milling train speed governing subsystem is used to receiving the speed governing order that the controller sends and according to the order adjustment correspondence
The mill speed of milling train；
The detection subsystem includes some detection means, and each detection means is separately mounted to before the entrance of correspondence milling train
Side, each detection means is connected with the controller communication, the controller and milling train speed governing subsystem controls connection.
2. bar wire rod rolling mill speed-adjusting and control system as claimed in claim 1, it is characterised in that：The detection subsystem is infrared
CCD detecting systems, video detection system or thermometal detecting system.
3. bar wire rod rolling mill speed-adjusting and control system as claimed in claim 1, it is characterised in that：The front interval setting of each milling train
There are two detection means, the detection means is arranged on the electric platform of two axles, two motors of the electric platform
Output shaft on be provided with encoder, the communication of encoder described in two and a head computing device be connected, and the head, which is calculated, to be filled
Put and be connected with the controller communication.
4. bar wire rod rolling mill speed-adjusting and control system as claimed in claim 3, it is characterised in that：Two drivings of the electric platform
Motor and the controller controlled connection, the controller control the electric platform to drive the detection means to follow the trail of bar.
5. bar wire rod rolling mill speed-adjusting and control system as claimed in claim 1, it is characterised in that：The milling train speed governing subsystem includes
Speed changer on each milling train, the speed changer includes the first spur gear being connected with the drive mechanism of roll
With the second spur gear being connected with roll, first spur gear and second spur gear pass through one and the speed changer
The gear box transmission that housing is slidably connected, the gear box includes interior rotation and is connected with two bevel gears, described two bevel gears
Taper it is identical, the direction of two bevel gear is on the contrary, two bevel gear engages with first and second spur gear respectively；
The gear box is connected with the piston rod of a hydraulic cylinder, and a magnetic valve, institute are provided with the oil supply pipe of the hydraulic cylinder
State magnetic valve and the controller controlled connection.
6. bar wire rod rolling mill speed-adjusting and control system as claimed in claim 5, it is characterised in that：The bevel gear includes core body, institute
The outer surface for stating core body is provided with some grooves, the groove and is provided with ball, and the outer surface of the core body is provided with housing,
It is provided with some through holes on the housing, the ball spills the housing by the through hole.
7. a kind of bar wire rod rolling mill method for controlling speed regulation, it is characterised in that：
Detect the distance between the head of previous Bar Wire Product and the afterbody of latter Bar Wire Product；
If the distance measured is not in predetermined threshold range, adjusts the mill speed of latter milling train and pass through cascade Mach-Zehnder interferometer plan
Slightly adjust the mill speed of each milling train after latter milling train；Or, adjust the mill speed of previous milling train and pass through level joint control
The mill speed of each milling train before the previous milling train of Developing Tactics processed；
If the distance measured is in predetermined threshold range, each milling train is controlled to be rolled with present speed.
8. bar wire rod rolling mill method for controlling speed regulation as claimed in claim 7, it is characterised in that：In detection process, using infrared
CCD detection method, video detecting method or thermometal detection method.
9. bar wire rod rolling mill method for controlling speed regulation as claimed in claim 7, it is characterised in that：Specific steps in detection process
It is as follows：
Follow the trail of the position end to end of adjacent two Bar Wire Product respectively using two detection means；
By the position end to end of the luffing angle of two detection means, horizontal rotation angle and adjacent two Bar Wire Product in present frame
Position calculates the position of the position end to end of adjacent two bar in a coordinate system,
The distance between adjacent two Bar Wire Product is calculated by the position of the position end to end of adjacent two Bar Wire Product in a coordinate system.
10. bar wire rod rolling mill method for controlling speed regulation as claimed in claim 7, it is characterised in that：The control method also includes adjusting
Whole selection step, its specific method is as follows：
Obtain and compare the milling train quantity before current detection device and the amount detection after current detection device；
If the milling train quantity before current detection device is less than the milling train quantity after current detection device, current detection is adjusted
Mill milling speed before device；
If the milling train quantity before current detection device is more than the milling train quantity after current detection device, current detection is adjusted
Mill milling speed after device.
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| CN111774421A (en) * | 2020-06-22 | 2020-10-16 | 江苏永钢集团有限公司 | Rod and wire rod rough rolling head rear-end collision feeding control method |
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| CN112705575A (en) * | 2020-12-14 | 2021-04-27 | 中冶京诚工程技术有限公司 | Automatic searching method and device for rotating speed oscillation frequency of bar and wire rolling mill |
| CN112718875A (en) * | 2020-12-15 | 2021-04-30 | 中冶京诚工程技术有限公司 | Method and device for identifying electromechanical time constant of bar and wire rolling mill |
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| CN107243770A (en) * | 2017-07-28 | 2017-10-13 | 中国重型机械研究院股份公司 | The preceding pinch control device and technique of a kind of peeling machine |
| CN109507286A (en) * | 2018-10-30 | 2019-03-22 | 中冶京诚工程技术有限公司 | Supersonic flaw detecting line steel tube pursues and attacks control method and device without shock end to end |
| CN109507286B (en) * | 2018-10-30 | 2021-05-11 | 中冶京诚工程技术有限公司 | Ultrasonic flaw detection line steel pipe head-tail non-impact collision control method and device |
| CN111774421A (en) * | 2020-06-22 | 2020-10-16 | 江苏永钢集团有限公司 | Rod and wire rod rough rolling head rear-end collision feeding control method |
| CN112337979A (en) * | 2020-10-16 | 2021-02-09 | 中冶京诚工程技术有限公司 | Control method and device for rod and wire rolling mill |
| CN112337981A (en) * | 2020-10-16 | 2021-02-09 | 中冶京诚工程技术有限公司 | Rod and wire mill rotating speed steady state value fitting method and device |
| CN112705575A (en) * | 2020-12-14 | 2021-04-27 | 中冶京诚工程技术有限公司 | Automatic searching method and device for rotating speed oscillation frequency of bar and wire rolling mill |
| CN112718875A (en) * | 2020-12-15 | 2021-04-30 | 中冶京诚工程技术有限公司 | Method and device for identifying electromechanical time constant of bar and wire rolling mill |
| CN112658039A (en) * | 2021-02-08 | 2021-04-16 | 南京高精工程设备有限公司 | Automatic control system and control method for bar rolling line |
| CN114367549A (en) * | 2022-01-13 | 2022-04-19 | 广东韶钢松山股份有限公司 | Method for detecting speed of rod and wire rolled piece |
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