CN114453433A - Control method and device for strip steel finish rolling equipment and computer equipment - Google Patents
Control method and device for strip steel finish rolling equipment and computer equipment Download PDFInfo
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- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
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Abstract
The embodiment of the application provides a control method of strip steel finish rolling equipment, the strip steel finish rolling equipment comprises at least two finish rolling mills which are sequentially arranged, a loop mechanism is arranged between every two adjacent finish rolling mills, the loop mechanism forms a strip steel loop by supporting strip steel, and the method comprises the following steps: acquiring an actual working angle of the strip steel loop; determining a moment coefficient of the strip steel loop based on the actual working angle and the preset working angle of the strip steel loop, and taking the product of the moment coefficient and the preset tension moment of the strip steel loop as a target tension moment of the strip steel loop; determining a target output force of a loop mechanism according to the target tension moment of the strip steel loop, wherein the target output force is used for adjusting the working angle of the strip steel loop; and returning to execute the step of obtaining the actual working angle of the strip steel loop until the working angle of the strip steel loop is adjusted to the preset working angle. The method and the device can effectively improve the stability of adjusting the angle of the strip steel loop and can avoid the strip steel from being off-tracking to a certain extent.
Description
Technical Field
The application relates to the technical field of steel rolling, in particular to a control method and device of strip steel finish rolling equipment and computer equipment.
Background
In the process of finish rolling of the strip steel, the strip steel is easy to deviate in a rack, so that the stable control of the strip steel loop plays an important role in rolling of thin specifications. In the threading process, if the loop control of the strip steel is abnormal, the loop control cannot be normally started, the strip steel is subjected to tension loss in a rack, the strip steel is easy to deviate and roll to break, and scrap steel is generated.
Therefore, a control method of a strip steel finishing rolling device is urgently needed by the technical personnel in the field to stably control the strip steel loop.
Disclosure of Invention
The embodiment of the application provides a control method and device of a strip steel finish rolling device and a computer device, so that the stability of a loop mechanism for adjusting the angle of a strip steel loop can be effectively improved at least, the strip steel can be prevented from being off-set to a certain extent, and finally the strip steel loop is stably controlled and rolled stably.
Other features and advantages of the present application will be apparent from the following detailed description, or may be learned by practice of the application.
According to an aspect of the present application, there is provided a control method of a strip finishing rolling apparatus including at least two finishing mills arranged in sequence, a looper mechanism provided between each adjacent finishing mill, the looper mechanism forming a strip loop by propping up a strip, the method including: acquiring an actual working angle of the strip steel loop; determining a moment coefficient of the strip steel loop based on the actual working angle and the preset working angle of the strip steel loop, and taking the product of the moment coefficient and the preset tension moment of the strip steel loop as a target tension moment of the strip steel loop; determining a target output force of the loop mechanism according to the target tension torque of the strip steel loop, wherein the target output force is used for adjusting the working angle of the strip steel loop; and returning to the step of obtaining the actual working angle of the strip steel loop until the working angle of the strip steel loop is adjusted to the preset working angle.
In some embodiments of the present application, a method of determining a predetermined tension torque of the strip loop comprises:
acquiring the width and the thickness of the strip steel and the set tension of the strip steel, wherein the set tension of the strip steel is the tension value of the stable rolling of the strip steel;
calculating the preset tension moment of the strip steel loop according to the following formula:
wherein,
and setting a tension value for the preset tension moment of the strip steel loop, wherein sigma is the set tension value of the strip steel, W is the width of the strip steel, and H is the thickness of the strip steel.
In some embodiments of the present application, determining the moment coefficient of the strip steel loop based on the actual working angle and the predetermined working angle of the strip steel loop comprises:
calculating the moment coefficient of the strip steel loop according to the following formula:
wherein, γNIs the moment coefficient of the strip steel loop,
is the preset working angle of the strip steel loop,
the real-time working angle of the steel strip loop at the T moment is shown.
In some embodiments of the present application, determining a target output force of the loop mechanism based on the target tension torque of the strip loop comprises: acquiring the gravity moment of the strip steel loop; according to the target tension moment and the gravity moment of the strip steel loop, carrying out moment balance analysis on the strip steel loop, and calculating the target acting force moment of the loop mechanism on the loop; and calculating the target output force of the loop mechanism based on the target acting force moment.
In some embodiments of the present application, said calculating a target output force of said looper mechanism based on said target applied force moment comprises: acquiring a real-time acting force arm output by the loop mechanism; calculating the output acting force of the loop mechanism based on the target acting force moment and the real-time acting force arm output by the loop mechanism; and taking the product of the output acting force and a compensation coefficient as the target output force of the loop mechanism, wherein the compensation coefficient is used for compensating energy loss in the transmission process.
In some embodiments of the present application, before obtaining the actual working angle of the strip steel loop, the method further comprises: after the finish rolling operation is started, if the strip steel is detected to pass through any loop mechanism, the loop mechanism is controlled to prop up the strip steel to form the strip steel loop.
In some embodiments of the present application, the controlling the loop mechanism to jack up the strip steel to form the strip steel loop includes: controlling the loop mechanism to lift the strip steel by a preset output force to form the strip steel loop; when the working angle of the strip steel loop is the preset working angle, the output force of the seat sleeve mechanism is the preset output force.
According to an aspect of the application, a belted steel finish rolling equipment controlling means is provided, belted steel finish rolling equipment is provided with loop mechanism including two at least finish rolling mills of arranging in proper order between every adjacent finish rolling mill, loop mechanism is through propping up belted steel in order to form the belted steel loop, its characterized in that, the device includes: the acquisition unit is used for acquiring the actual working angle of the strip steel loop; a first determination unit, configured to determine a moment coefficient of the strip steel loop based on an actual working angle and a predetermined working angle of the strip steel loop, and use a product of the moment coefficient and a predetermined tension moment of the strip steel loop as a target tension moment of the strip steel loop; the second determining unit is used for determining the target output force of the loop mechanism according to the target tension moment of the strip steel loop, and the target output force is used for adjusting the working angle of the strip steel loop; and the return unit is used for returning and executing the step of obtaining the actual working angle of the strip steel loop until the working angle of the strip steel loop is adjusted to the preset working angle.
According to an aspect of the present application, there is provided a computer-readable storage medium, wherein at least one program code is stored therein, and the at least one program code is loaded and executed by a processor to implement the operations performed by the control method of a strip finishing apparatus as described.
According to an aspect of the present application, there is provided a computer apparatus, characterized in that the computer apparatus includes one or more processors and one or more memories, the one or more memories storing therein at least one program code, the at least one program code being loaded and executed by the one or more processors to implement the operations performed by the control method of a strip finishing rolling apparatus as described.
Based on the scheme, the application has at least the following advantages or progress effects:
according to the control method of the strip steel finish rolling equipment, the angle of the strip steel loop between the two finish rolling machines is monitored, the tension torque of the strip steel loop is calculated, so that the output force of the loop mechanism is deduced, the stability of the loop mechanism for adjusting the angle of the strip steel loop can be effectively improved, the strip steel can be prevented from deviating due to tension loss to a certain degree, and finally, the strip steel loop is stably controlled and rolled stably.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic flow chart showing a control method of a strip finishing rolling apparatus according to an embodiment of the present application;
FIG. 2 is a schematic flow chart showing a control method of a strip finishing rolling apparatus according to an embodiment of the present application;
FIG. 3 is a schematic flow chart showing a control method of a strip finishing rolling apparatus according to an embodiment of the present application;
FIG. 4 shows a schematic diagram of the rolling of a finishing block in an embodiment of the present application;
FIG. 5 is a schematic view showing a control apparatus of a strip finishing apparatus according to an embodiment of the present application;
fig. 6 shows a schematic structural diagram of a computer system suitable for implementing the control method of the embodiment of the present application.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the subject matter of the present application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the application.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It is noted that the terms first, second and the like in the description and claims of the present application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the objects so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or described herein.
Referring to fig. 1, fig. 1 is a simplified flowchart illustrating a method of controlling a strip finishing rolling apparatus including at least two finishing mills arranged in sequence with a looper mechanism provided between each adjacent finishing mill for forming a strip loop by lifting up a strip, according to an embodiment of the present application, and the method may include steps S101 to S104:
and S101, acquiring the actual working angle of the strip steel loop.
And S102, determining a moment coefficient of the strip steel loop based on the actual working angle and the preset working angle of the strip steel loop, and taking the product of the moment coefficient and the preset tension moment of the strip steel loop as the target tension moment of the strip steel loop.
And S103, determining a target output force of the loop mechanism according to the target tension torque of the strip steel loop, wherein the target output force is used for adjusting the working angle of the strip steel loop.
And S104, returning to the step of obtaining the actual working angle of the strip steel loop until the working angle of the strip steel loop is adjusted to the preset working angle.
In this application, a looper mechanism may be provided between the two finishing mills to form a strip loop. In order to maintain the stable tension of the strip steel loop in the adjusting process, the output force of the loop mechanism needs to be stably controlled. The output force of the loop mechanism at each moment can be determined according to the actual working angle, the preset working angle and the preset tension moment of the strip steel loop at each moment, so that the loop mechanism is stably controlled to form the strip steel loop by supporting the strip steel.
The method and the device can return to execute the step of obtaining the actual working angle of the strip steel loop, so that the real-time control of the loop mechanism is realized. For example, after the output force of the loop mechanism at the time a is calculated, the actual working angle of the strip steel loop at the time a +1 is obtained, and the output force of the loop mechanism at the time a +1 is calculated. Based on the scheme, the application can realize right the continuous real-time control of loop mechanism output power guarantees at the adjustment in-process, loop mechanism output power homoenergetic stably maintains the tension of belted steel loop avoids taking place belted steel and misses the off tracking accident or belted steel tension change disconnected area accident that leads to too greatly.
In some embodiments of the present application, a method of determining a predetermined tension torque of the strip loop may include: acquiring the width and the thickness of the strip steel and the set tension of the strip steel, wherein the set tension of the strip steel is the tension value of the stable rolling of the strip steel; calculating the preset tension moment of the strip steel loop according to the following formula:
wherein,
and setting a tension value for the preset tension moment of the strip steel loop, wherein sigma is the set tension value of the strip steel, W is the width of the strip steel, and H is the thickness of the strip steel.
In the application, the preset tension moment is a tension moment corresponding to the preset working angle, and can reflect the tension moment of the strip steel loop at the preset working angle, namely the tension moment of the strip steel loop when the strip steel is rolled stably. For example, the width of the existing strip is a, the thickness of the existing strip is b, the preset working angle of the strip loop of the strip is 22 degrees, namely when the working angle of the strip loop is 22 degrees, the finishing process of the strip is most stable, and at the moment, the preset tension c of the strip corresponding to 22 degrees can be provided, so that the preset tension moment of the strip loop can be calculated easily:
wherein,
and setting a tension value for the preset tension moment of the strip steel loop, wherein sigma is the set tension value of the strip steel, W is the width of the strip steel, and H is the thickness of the strip steel.
In some embodiments of the present application, the method of determining the moment coefficient of the strip steel loop based on the actual working angle and the predetermined working angle of the strip steel loop may include:
calculating the moment coefficient of the strip steel loop according to the following formula:
wherein, γNIs the moment coefficient of the strip steel loop,
for looping of said stripThe working angle is fixed, and the working angle is fixed,
the real-time working angle of the steel strip loop at the T moment is shown.
In the application, the tension of the strip steel loop at each moment can be determined by calculating the moment coefficient at each moment. For example, in the existing strip finishing equipment, the preset working angle of one strip loop is 20 degrees, and when the real-time working angle of the strip loop is 15 degrees, the calculation is not difficult:
when the real-time working angle of the strip steel loop is 15 degrees, the moment coefficient is 1, and the strip steel loop is adjusted to the preset working angle at the moment.
Referring to fig. 2, fig. 2 is a simplified flowchart illustrating a method for controlling a strip finishing rolling apparatus according to an embodiment of the present disclosure, in which the method for determining the target output force of the loop mechanism according to the target tension moment of the strip loop may include steps S201 to S203:
s201, acquiring the gravity moment of the strip steel loop.
S202, carrying out moment balance analysis on the strip steel loop according to the target tension moment and the gravity moment of the strip steel loop, and calculating the target acting force moment of the loop mechanism on the strip steel loop.
And S203, calculating the target output force of the loop mechanism based on the target acting force moment.
In the application, after the target tension moment is calculated, the moment balance analysis can be carried out on the strip steel loop, the target acting force moment of the strip steel loop by the loop mechanism is calculated, and then the output force of the loop mechanism is deduced. The target acting force moment of the strip steel loop can be calculated according to the following formula:
TL(θ)＝f1(θ)Aσ+f2(θ)
wherein, TL(theta) is the target acting force moment when the working angle of the strip steel loop is theta, f1(theta) A sigma is a target tension moment when the working angle of the strip steel loop is theta, f2And (theta) is the gravity moment of the strip steel loop when the working angle of the strip steel loop is theta.
Referring to fig. 3, fig. 3 is a simplified flowchart illustrating a method of controlling a strip finishing rolling apparatus according to an embodiment of the present application, where the method of calculating the target output force of the looper mechanism based on the target force moment may include steps S301 to S303:
and S301, acquiring a real-time acting force arm output by the loop mechanism.
S302, calculating the output acting force of the loop mechanism based on the target acting force moment and the real-time acting force arm output by the loop mechanism.
And S303, taking the product of the output acting force and a compensation coefficient as the target output force of the loop mechanism, wherein the compensation coefficient is used for compensating energy loss in the transmission process.
In the application, since energy loss is easy to occur in the transmission process of the looper mechanism, and transmission efficiency is lost, in order to compensate for the energy loss in the transmission process, a compensation coefficient can be introduced, and when the output acting force is calculated, the product of the output acting force and the compensation coefficient can be used as the target output force of the looper mechanism. For example, now that the output force is calculated to be a, the compensation factor may be 1.1, so the target output force of the looper mechanism may be calculated to be 1.1A.
In some embodiments of the present application, before obtaining the actual working angle of the strip steel loop, the method may further include: after the finish rolling operation is started, if the strip steel is detected to pass through any loop mechanism, the loop mechanism is controlled to prop up the strip steel to form the strip steel loop.
In the application, after the strip steel passes through the loop mechanism, the loop mechanism is controlled to prop up the strip steel, so that the situation that the loop mechanism props up in advance, the advancing direction of the strip steel is blocked, and production accidents occur is avoided; meanwhile, the phenomenon that the strip steel is not stretched and deviated due to the fact that the loop mechanism is supported after being delayed is avoided. In actual production, whether the strip steel passes through the loop mechanism or not can be judged according to steel biting signals sent by adjacent finishing mills.
In some embodiments of the present application, the method for controlling the loop mechanism to support the strip steel may include: controlling the loop mechanism to lift the strip steel by a preset output force to form the strip steel loop; when the working angle of the strip steel loop is the preset working angle, the output force of the loop mechanism is the preset output force.
In the application, the loop mechanism is mainly balanced by the moment applied to the strip steel loop in subsequent adjustment, so that an initial speed of upward movement of the strip steel is required at the moment of starting to lift up, and the output force when the working angle of the strip steel loop is the preset working angle can be used as the preset output force.
In order that those skilled in the art may more fully understand the present application, a detailed description of the present application is provided below along with a full range of embodiments.
Referring to fig. 4, fig. 4 shows a schematic diagram of the rolling of a finishing block in an embodiment of the present application. In the finish rolling process, when the strip steel 402 passes through the loop mechanism 401, the loop mechanism 401 supports the strip steel 402 according to a preset output force, and a strip steel loop with a certain angle is formed. And simultaneously, determining the output force of the loop mechanism at each moment according to the working angle of the strip steel loop so as to ensure that the strip steel loop is stably adjusted to a preset working angle. In FIG. 4, 403 is a work roll which is in contact with the strip steel to roll the strip steel to a target thickness; 404 is a support roller, which is in contact with the work roller 403.
Next, an apparatus embodiment of the present application will be described with reference to the drawings.
Referring to fig. 5, fig. 5 is a schematic diagram showing a control apparatus of a strip finishing rolling mill including at least two finishing mills arranged in sequence, a looper mechanism provided between each adjacent finishing mill for forming a loop by lifting a strip, according to an embodiment of the present application, wherein the apparatus 500 may include: an acquisition unit 501, a first determination unit 502, a second determination unit 503, and a return unit 504.
The device may be specifically configured as follows: an obtaining unit 501, configured to obtain an actual working angle of the strip steel loop; a first determining unit 502, configured to determine a moment coefficient of the strip steel loop based on an actual working angle and a predetermined working angle of the strip steel loop, and use a product of the moment coefficient and a predetermined tension moment of the strip steel loop as a target tension moment of the strip steel loop; a second determining unit 503, configured to determine a target output force of the loop mechanism according to a target tension torque of the strip steel loop, where the target output force is used to adjust a working angle of the strip steel loop; a returning unit 504, configured to return to performing the step of obtaining the actual working angle of the strip steel loop until the working angle of the strip steel loop is adjusted to the predetermined working angle.
Fig. 6 shows a schematic structural diagram of a computer system suitable for implementing the control method of the embodiment of the present application.
It should be noted that the computer system 600 of the control method shown in fig. 6 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present application.
As shown in fig. 6, the computer system 600 includes a Central Processing Unit (CPU)601, which can perform various appropriate actions and processes, such as executing the methods described in the above embodiments, according to a program stored in a Read-Only Memory (ROM) 602 or a program loaded from a storage portion 608 into a Random Access Memory (RAM) 603. In the RAM 603, various programs and data necessary for system operation are also stored. The CPU 601, ROM 602, and RAM 603 are connected to each other via a bus 604. An Input/Output (I/O) interface 605 is also connected to bus 604.
The following components are connected to the I/O interface 605: an input portion 606 including a keyboard, a mouse, and the like; an output section 607 including a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, a speaker, and the like; a storage section 608 including a hard disk and the like; and a communication section 609 including a Network interface card such as a LAN (Local Area Network) card, a modem, or the like. The communication section 609 performs communication processing via a network such as the internet. The driver 610 is also connected to the I/O interface 605 as needed. A removable medium 611 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 610 as necessary, so that a computer program read out therefrom is mounted into the storage section 608 as necessary.
In particular, according to embodiments of the present application, the processes described above with reference to the flow diagrams may be implemented as computer software programs. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a computer-readable medium, the computer program comprising program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 609, and/or installed from the removable medium 611. When the computer program is executed by a Central Processing Unit (CPU)601, various functions defined in the system of the present application are executed.
It should be noted that the computer readable medium shown in the embodiments of the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read-Only Memory (EPROM), a flash Memory, an optical fiber, a portable Compact Disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. Each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams or flowchart illustration, and combinations of blocks in the block diagrams or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units described in the embodiments of the present application may be implemented by software, or may be implemented by hardware, and the described units may also be disposed in a processor. Wherein the names of the elements do not in some way constitute a limitation on the elements themselves.
As another aspect, the present application also provides a computer program product or computer program comprising computer instructions stored in a computer readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the control method of the strip finishing apparatus described in the above embodiments.
As another aspect, the present application also provides a computer-readable medium, which may be contained in the electronic device described in the above embodiments; or may exist separately without being assembled into the electronic device. The above-mentioned computer-readable medium carries one or more programs that, when executed by one of the electronic devices, cause the electronic device to implement the control method of the strip finishing rolling apparatus described in the above-mentioned embodiments.
It should be noted that although in the above detailed description several modules or units of the device for action execution are mentioned, such a division is not mandatory. Indeed, the features and functionality of two or more modules or units described above may be embodied in one module or unit, according to embodiments of the application. Conversely, the features and functions of one module or unit described above may be further divided into embodiments by a plurality of modules or units.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which can be a personal computer, a server, a touch terminal, or a network device, etc.) to execute the method according to the embodiments of the present application.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A control method of a strip steel finish rolling device comprises at least two finish rolling mills which are arranged in sequence, a loop mechanism is arranged between every two adjacent finish rolling mills, and the loop mechanism forms a strip steel loop by supporting strip steel, and is characterized by comprising the following steps:
acquiring an actual working angle of the strip steel loop;
determining a moment coefficient of the strip steel loop based on the actual working angle and the preset working angle of the strip steel loop, and taking the product of the moment coefficient and the preset tension moment of the strip steel loop as a target tension moment of the strip steel loop;
determining a target output force of the loop mechanism according to the target tension torque of the strip steel loop, wherein the target output force is used for adjusting the working angle of the strip steel loop;
and returning to the step of obtaining the actual working angle of the strip steel loop until the working angle of the strip steel loop is adjusted to the preset working angle.
2. A control method according to claim 1, characterized in that the method of determining the predetermined tension torque of the loop comprises:
acquiring the width and the thickness of the strip steel and the set tension of the strip steel, wherein the set tension of the strip steel is the tension value of the stable rolling of the strip steel;
calculating the preset tension moment of the strip steel loop according to the following formula:
wherein,
and setting a tension value for the preset tension moment of the strip steel loop, wherein sigma is the set tension value of the strip steel, W is the width of the strip steel, and H is the thickness of the strip steel.
3. The control method of claim 1, wherein determining the moment coefficient of the strip loop based on the actual working angle and the predetermined working angle of the strip loop comprises:
calculating the moment coefficient of the strip steel loop according to the following formula:
wherein, γNIs the moment coefficient of the strip steel loop,
is the preset working angle of the strip steel loop,
the real-time working angle of the steel strip loop at the T moment is shown.
4. The control method according to claim 1, wherein the determining a target output force of the looper mechanism based on the target tension moment of the strip loop comprises:
acquiring the gravity moment of the strip steel loop;
according to the target tension moment and the gravity moment of the strip steel loop, carrying out moment balance analysis on the strip steel loop, and calculating the target acting force moment of the loop mechanism on the strip steel loop;
and calculating the target output force of the loop mechanism based on the target acting force moment.
5. The control method of claim 5, wherein calculating the target output force of the looper mechanism based on the target apply force torque comprises:
acquiring a real-time acting force arm output by the loop mechanism;
calculating the output acting force of the loop mechanism based on the target acting force moment and the real-time acting force arm output by the loop mechanism;
and taking the product of the output acting force and a compensation coefficient as the target output force of the loop mechanism, wherein the compensation coefficient is used for compensating energy loss in the transmission process.
6. The control method according to claim 1, wherein before obtaining the actual working angle of the strip loop, the method further comprises:
after the finish rolling operation is started, if the strip steel is detected to pass through any loop mechanism, the loop mechanism is controlled to prop up the strip steel to form the strip steel loop.
7. The control method according to claim 6, wherein the controlling the looping mechanism to loop up the strip steel to form the strip steel loop comprises:
controlling the loop mechanism to lift the strip steel by a preset output force to form the strip steel loop;
when the working angle of the strip steel loop is the preset working angle, the output force of the loop mechanism is the preset output force.
8. The utility model provides a belted steel finish rolling equipment controlling means, belted steel finish rolling equipment is provided with loop mechanism including two at least finish rolling mills of arranging in proper order between every adjacent finish rolling mill, loop mechanism is through propping up belted steel in order to form the belted steel loop, its characterized in that, the device includes:
the acquisition unit is used for acquiring the actual working angle of the strip steel loop;
a first determination unit, configured to determine a moment coefficient of the strip steel loop based on an actual working angle and a predetermined working angle of the strip steel loop, and use a product of the moment coefficient and a predetermined tension moment of the strip steel loop as a target tension moment of the strip steel loop;
the second determining unit is used for determining the target output force of the loop mechanism according to the target tension moment of the strip steel loop, and the target output force is used for adjusting the working angle of the strip steel loop;
and the returning unit is used for returning and executing the step of obtaining the actual working angle of the strip steel loop until the working angle of the strip steel loop is adjusted to the preset working angle.
9. A computer-readable storage medium, characterized in that at least one program code is stored therein, and the at least one program code is loaded and executed by a processor to perform the operations performed by the control method of a strip finishing apparatus as set forth in any one of claims 1 to 7.
10. A computer apparatus, characterized in that the computer apparatus comprises one or more processors and one or more memories, in which at least one program code is stored, the at least one program code being loaded and executed by the one or more processors to implement the operations performed by the control method of a strip finishing apparatus as claimed in any one of claims 1 to 7.
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