Method and device for configuring the profile of the rolls of a six-high cold rolling mill

Abstract

The embodiment of the application provides a six-roller cold rolling mill roll shape configuration method and device, the method comprises the following steps: determining a support roller roll shape radius and a corresponding support roller roll shape curve, determining a middle roller roll shape radius and a corresponding middle roller roll shape curve, and determining a work roller roll shape radius and a corresponding work roller roll shape curve; according to the support roller roll shape curve, the middle roller roll shape curve and the work roller roll shape curve, the six-roller cold rolling mill roll shape is configured; and the embodiment of the application can effectively improve the edge drop control ability of the six-roller cold rolling mill and the uniformity of inter-roller contact pressure distribution.

Description

Technical Field

[0001] This application relates to the field of cold rolling technology in iron and steel metallurgy, specifically to a method and apparatus for configuring the roll shape of a six-roll cold rolling mill. Background Technology

[0002] With the continuous development of cold rolling technology in iron and steel metallurgy, cold-rolled strip steel, due to its advantages such as high dimensional accuracy, rich variety, and superior machinability, is widely used in industries such as home appliance manufacturing, construction, automobiles, and chemicals. The quality of its products reflects the level of a country's steel industry, thus the requirements for its quality are constantly increasing. In my country, CVC and UC series mills are the mainstream models of cold continuous rolling mills. However, because the roll profile grinding of CVC mills is more complex than that of flat roll mills, and the changes in product parameters for different products and specifications make the CVC control system more complex, and the number of grinding cycles is higher than that of flat roll mills, UC series mills are more widely used than CVC mills. Among them, the UCMW mill, due to its work roll shifting characteristics, has a stronger strip shape control capability than the UCM mill, and therefore has received increasing attention in the field of strip shape control technology.

[0003] In the existing technology, the work rolls of UCMW rolling mills are generally flat rolls or single-tapered work rolls, and the intermediate rolls are usually flat rolls. However, considering that the inter-roll pressure between the work roll and the intermediate roll, and between the intermediate roll and the support roll is relatively large at the roll end, it is necessary to chamfer the end of the intermediate roll, which is generally a rounded chamfer. The support roll is usually a flat roll with chamfered edges. This configuration has disadvantages such as insufficient edge drop control capability and uneven inter-roll contact stress. Summary of the Invention

[0004] To address the problems in the prior art, this application provides a method and apparatus for configuring the roll shape of a six-roll cold rolling mill, which can effectively improve the edge drop control capability and the uniformity of the inter-roll contact pressure distribution of the six-roll cold rolling mill.

[0005] To solve at least one of the above problems, this application provides the following technical solution:

[0006] In a first aspect, this application provides a method for configuring the roll shape of a six-roll cold rolling mill, including:

[0007] Based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half angle and length of the support roller basic curve, the half angle and length of the support roller variable contact curve, and the half angle and length of the support roller chamfer curve, determine the support roller shape radius and the corresponding support roller shape curve.

[0008] Based on the amplitude of the intermediate roll profile base curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half angle and length of the intermediate roll profile base curve, and the half angle and length of the intermediate roll plate shape control curve, determine the intermediate roll profile radius and the corresponding intermediate roll profile curve.

[0009] Based on the amplitude of the basic curve of the working roll shape, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half angle and length of the basic curve of the working roll shape, and the half angle and length of the working roll edge drop control curve, determine the radius of the working roll shape and the corresponding working roll shape curve.

[0010] The roll profile of the six-roll cold rolling mill is configured according to the support roll profile curve, the intermediate roll profile curve, and the work roll profile curve.

[0011] Further, before determining the support roller profile radius and the corresponding support roller profile curve, the following steps are included:

[0012] The amplitude of the support roller body base curve is determined based on the support roller crown and the half angle of the support roller roll shape base curve.

[0013] The amplitude of the variable contact curve of the support roller is determined based on the amplitude of the basic curve of the support roller body, the depth of the chamfer curve of the support roller, the depth of the variable contact curve of the support roller, the half angle of the basic curve of the support roller shape, the length of the chamfer curve of the support roller, the half angle of the variable contact curve of the support roller, the length of the variable contact curve of the support roller, and the length of the support roller body.

[0014] The amplitude of the chamfer curve of the support roller is determined based on the amplitude of the basic curve of the support roller body, the amplitude of the variable contact curve of the support roller, the depth of the variable contact curve of the support roller, the half angle of the basic curve of the support roller shape, the half angle of the variable contact curve of the support roller, the half angle of the chamfer curve of the support roller, the length of the support roller body, and the length of the variable contact curve of the support roller.

[0015] Further, before determining the intermediate roll profile radius and the corresponding intermediate roll profile curve, the following steps are included:

[0016] The amplitude of the intermediate roll profile base curve is determined based on the intermediate roll crown and the half angle of the intermediate roll profile base curve.

[0017] The amplitude of the intermediate roll shape control curve is determined based on the amplitude of the intermediate roll shape base curve, the depth of the intermediate roll shape control curve, the half angle of the intermediate roll shape base curve, the half angle of the intermediate roll shape control curve, the length of the intermediate roll shape control curve, and the length of the intermediate roll body.

[0018] Further, before determining the work roll profile radius and the corresponding work roll profile curve, the following steps are included:

[0019] The amplitude of the basic curve of the working roll shape is determined based on the crown of the working roll and the half angle of the basic curve of the working roll shape.

[0020] The amplitude of the working roll side drop control curve is determined based on the amplitude of the working roll basic curve, the depth of the working roll side drop control curve, the half angle of the working roll basic curve, the half angle of the working roll side drop control curve, the length of the working roll body, and the length of the working roll side drop control curve.

[0021] Furthermore, the shape control section of the upper intermediate roll is located on the operating side of the mill, and the edge drop control section of the upper work roll is located on the drive side of the mill. The shape control sections of the upper and lower intermediate rolls are arranged in an anti-symmetrical manner, and the edge drop control sections of the upper and lower work rolls are arranged in an anti-symmetrical manner.

[0022] Secondly, this application provides a roll configuration device for a six-roll cold rolling mill, comprising:

[0023] The support roller configuration module is used to determine the support roller profile radius and the corresponding support roller profile curve based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half angle and length of the support roller profile basic curve, the half angle and length of the support roller variable contact curve, and the half angle and length of the support roller chamfer curve.

[0024] The intermediate roll configuration module is used to determine the intermediate roll radius and the corresponding intermediate roll shape curve based on the amplitude of the intermediate roll roll shape base curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half angle and length of the intermediate roll roll shape base curve, and the half angle and length of the intermediate roll plate shape control curve.

[0025] The working roll configuration module is used to determine the working roll radius and the corresponding working roll shape curve based on the amplitude of the working roll roll shape base curve, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half angle and length of the working roll roll shape base curve, and the half angle and length of the working roll edge drop control curve.

[0026] The mill roll profile configuration module is used to configure the roll profile of a six-roll cold rolling mill according to the roll profile curve of the support roll, the roll profile curve of the intermediate roll, and the roll profile curve of the work roll.

[0027] Thirdly, this application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the six-roll cold rolling mill roll configuration method.

[0028] Fourthly, this application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the six-roll cold rolling mill roll configuration method.

[0029] Fifthly, this application provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the six-roll cold rolling mill roll configuration method.

[0030] As can be seen from the above technical solution, this application provides a method and apparatus for configuring the roll shape of a six-roll cold rolling mill. By using symmetrical variable contact support rolls to uniformly distribute the contact pressure between rolls, the roll shape self-holding ability is improved, ensuring the stability of the sheet shape control during the service life of the support rolls. By using asymmetrical single-tapered intermediate rolls to reduce the harmful contact area and improve the contact pressure peak, and by using asymmetrical single-tapered work rolls to improve the edge drop control capability, the edge drop control capability and the uniformity of the contact pressure distribution between rolls of the six-roll cold rolling mill can be effectively improved. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is one of the flowcharts illustrating the roll profile configuration method for a six-roll cold rolling mill in this application embodiment;

[0033] Figure 2 This is the second schematic flowchart of the roll profile configuration method for a six-roll cold rolling mill in this application embodiment;

[0034] Figure 3 This is the third schematic flowchart of the roll shape configuration method for a six-roll cold rolling mill in this application embodiment;

[0035] Figure 4 This is the fourth flowchart illustrating the roll profile configuration method for a six-roll cold rolling mill in this application embodiment;

[0036] Figure 5 This is a structural diagram of the roll configuration device for a six-roll cold rolling mill in an embodiment of this application;

[0037] Figure 6 This is a schematic diagram of the roll shape structure of a six-roll cold rolling mill in a specific embodiment of this application;

[0038] Figure 7 This is a schematic diagram of the support roller profile curve in a specific embodiment of this application;

[0039] Figure 8 This is a schematic diagram of the intermediate roller profile curve in a specific embodiment of this application;

[0040] Figure 9 This is a schematic diagram of the working roller profile curve in a specific embodiment of this application;

[0041] Figure 10 This is a schematic diagram of the structure of the electronic device in the embodiments of this application. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] The acquisition, storage, use, and processing of data in this application all comply with the relevant provisions of national laws and regulations.

[0044] Considering that in existing UCMW rolling mills, the work rolls are generally flat rolls or single-tapered work rolls, and the intermediate rolls are usually flat rolls, but considering that the inter-roll pressure between the work roll and the intermediate roll, and between the intermediate roll and the support roll is relatively large at the roll ends, it is necessary to chamfer the ends of the intermediate rolls, generally with rounded chamfers. The support rolls are usually flat rolls with chamfered edges. This configuration has the problem of insufficient edge drop control capability and uneven inter-roll contact stress. This application provides a roll shape configuration method and device for a six-roll cold rolling mill. By using symmetrical variable contact support rolls to uniformly distribute the inter-roll contact pressure, the roll shape self-holding capability is improved, ensuring the stability of the sheet shape control during the service life of the support rolls. The use of asymmetrical single-tapered intermediate rolls reduces the harmful contact area and improves the contact pressure peak. The use of asymmetrical single-tapered work rolls improves the edge drop control capability. Thus, the edge drop control capability and the uniformity of inter-roll contact pressure distribution of the six-roll cold rolling mill can be effectively improved.

[0045] To effectively improve the edge drop control capability and the uniformity of inter-roll contact pressure distribution in a six-roll cold rolling mill, this application provides an embodiment of a roll profile configuration method for a six-roll cold rolling mill, see [link to embodiment]. Figure 1 The method for configuring the roll shape of the six-roll cold rolling mill specifically includes the following:

[0046] Step S101: Determine the support roller profile radius and the corresponding support roller profile curve based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half angle and length of the support roller profile basic curve, the half angle and length of the support roller variable contact curve, and the half angle and length of the support roller chamfer curve.

[0047] Optionally, given the known length L of the support roller body... b and the initial radius R of the support roller b Based on this, the first step is to specify the length L of the chamfer curve of the support roller. b1 The length L of the variable contact curve of the support roller b2 The second step is to specify the chamfering curve depth h of the support roller. b1 and the depth of the contact curve h of the support roller b2 The third step is to give the half-angle α of the support roller's roller-shaped foundation curve. b1 α, the half-angle of the contact curve of the support roller b2 and the half angle α of the chamfer curve of the support roller b3 The fourth step is to give the support roller crown C. bw The fifth step is to obtain the support roller profile parameter A according to equation IV. b1 In the sixth step, the roller shape parameter A is obtained according to formula V. b2 In the seventh step, the roller shape parameter A is obtained according to formula VI. b3 This allows for the unique determination of a support roller profile curve.

[0048]

[0049]

[0050]

[0051] Step S102: Determine the intermediate roll radius and the corresponding intermediate roll shape curve based on the amplitude of the intermediate roll basic curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half angle and length of the intermediate roll basic curve, and the half angle and length of the intermediate roll plate shape control curve.

[0052] Optionally, given the known length L of the intermediate roll body... m and the initial radius R of the intermediate roller m Based on this, the first step is to give the length L of the intermediate roller shape control curve. m1 The second step is to give the depth h of the intermediate roller shape control curve. m1 The third step is to give the half-angle α of the intermediate roller's basic curve. m1 Intermediate roller shape control curve half angle α m2 The fourth step is to give the crown C of the intermediate roller. mwThe fifth step is to obtain the intermediate roll shape parameter A according to equation VII. m1 In the sixth step, the intermediate roll shape parameter A is obtained according to equation VIII. m2 This allows for the unique determination of an intermediate roller profile curve.

[0053]

[0054]

[0055] Step S103: Determine the working roll radius and the corresponding working roll shape curve based on the amplitude of the working roll basic curve, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half angle and length of the working roll basic curve, and the half angle and length of the working roll edge drop control curve.

[0056] Optionally, given the known length L of the work roll body... w and the initial radius R of the work roll w Based on this, the first step is to give the length L of the working roll edge drop control curve. w1 The second step is to specify the depth h of the working roll edge drop control curve. w1 The third step is to give the half-angle α of the basic curve of the working roll shape. w1 Half angle α of the work roll edge drop control curve w2 The fourth step is to give the crown C of the working roll. ww The fifth step is to obtain the work roll profile parameter A according to formula IX. w1 The sixth step is to obtain the work roll profile parameter A according to formula X. w2 This allows for the unique determination of a single working roll profile curve.

[0057]

[0058]

[0059] Step S104: Configure the roll profile of the six-roll cold rolling mill according to the support roll profile curve, the intermediate roll profile curve and the work roll profile curve.

[0060] As can be seen from the above description, the roll shape configuration method of the six-roll cold rolling mill provided in this application can improve the roll shape self-holding ability and ensure the stability of the plate shape control during the service life of the support roll by using symmetrical variable contact support rolls to uniformly distribute the contact pressure between the rolls, thereby ensuring the stability of the plate shape control during the service life of the support rolls, reducing the harmful contact area and improving the contact pressure peak by using asymmetrical single taper intermediate rolls, and improving the edge drop control capability by using asymmetrical single taper work rolls. Thus, it can effectively improve the edge drop control capability and the uniformity of the contact pressure distribution between the rolls of the six-roll cold rolling mill.

[0061] In order to accurately determine the support roll curve parameters, in one embodiment of the six-roll cold rolling mill roll shape configuration method of this application, see [link to relevant documentation]. Figure 2 It can also specifically include the following:

[0062] Step S201: Determine the amplitude of the support roller body base curve based on the support roller crown and the half angle of the support roller roll shape base curve.

[0063] Step S202: Determine the amplitude of the variable contact curve of the support roller based on the amplitude of the basic curve of the support roller body, the depth of the chamfer curve of the support roller, the depth of the variable contact curve of the support roller, the half angle of the basic curve of the support roller shape, the length of the chamfer curve of the support roller, the half angle of the variable contact curve of the support roller, the length of the variable contact curve of the support roller, and the length of the support roller body.

[0064] Step S203: Determine the amplitude of the chamfer curve of the support roller based on the amplitude of the basic curve of the support roller body, the amplitude of the variable contact curve of the support roller, the depth of the variable contact curve of the support roller, the half angle of the basic curve of the support roller shape, the half angle of the variable contact curve of the support roller, the half angle of the chamfer curve of the support roller, the length of the support roller body, and the length of the variable contact curve of the support roller.

[0065] In order to accurately determine the intermediate roll curve parameters, in one embodiment of the six-roll cold rolling mill roll shape configuration method of this application, see [link to relevant documentation]. Figure 3 It can also specifically include the following:

[0066] Step S301: Determine the amplitude of the intermediate roll profile base curve based on the intermediate roll crown and the half angle of the intermediate roll profile base curve.

[0067] Step S302: Determine the amplitude of the intermediate roll shape control curve based on the amplitude of the intermediate roll basic curve, the depth of the intermediate roll plate shape control curve, the half angle of the intermediate roll basic curve, the half angle of the intermediate roll plate shape control curve, the length of the intermediate roll plate shape control curve, and the length of the intermediate roll body.

[0068] In order to accurately determine the support roll curve parameters, in one embodiment of the six-roll cold rolling mill roll shape configuration method of this application, see [link to relevant documentation]. Figure 4 It can also specifically include the following:

[0069] Step S401: Determine the amplitude of the work roll basic curve based on the work roll crown and the half angle of the work roll basic curve.

[0070] Step S402: Determine the amplitude of the working roll side drop control curve based on the amplitude of the working roll basic curve, the depth of the working roll side drop control curve, the half angle of the working roll basic curve, the half angle of the working roll side drop control curve, the length of the working roll body, and the length of the working roll side drop control curve.

[0071] In one embodiment of the roll profile configuration method for a six-roll cold rolling mill in this application, the method may further include the following:

[0072] In a preferred embodiment of this application, the shape control section of the upper intermediate roll is located on the drive side of the rolling mill, the edge drop control section of the upper work roll is located on the operating side of the rolling mill, the shape control sections of the upper intermediate roll and the lower intermediate roll are arranged in an anti-symmetrical manner, and the edge drop control sections of the upper work roll and the lower work roll are arranged in an anti-symmetrical manner.

[0073] To effectively improve the edge drop control capability and the uniformity of inter-roll contact pressure distribution in a six-roll cold rolling mill, this application provides an embodiment of a six-roll cold rolling mill roll shape configuration device for implementing all or part of the aforementioned six-roll cold rolling mill roll shape configuration method. See [link to embodiment]. Figure 5 The six-roll cold rolling mill roll configuration device specifically includes the following components:

[0074] The support roller configuration module 10 is used to determine the support roller radius and the corresponding support roller profile curve based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half angle and length of the support roller profile basic curve, the half angle and length of the support roller variable contact curve, and the half angle and length of the support roller chamfer curve.

[0075] The intermediate roll configuration module 20 is used to determine the intermediate roll radius and the corresponding intermediate roll shape curve based on the amplitude of the intermediate roll roll shape base curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half angle and length of the intermediate roll roll shape base curve, and the half angle and length of the intermediate roll plate shape control curve.

[0076] The working roll configuration module 30 is used to determine the working roll radius and the corresponding working roll profile curve based on the amplitude of the working roll profile base curve, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half angle and length of the working roll profile base curve, and the half angle and length of the working roll edge drop control curve.

[0077] The mill roll profile configuration module 40 is used to configure the roll profile of a six-roll cold rolling mill according to the roll profile curve of the support roll, the roll profile curve of the intermediate roll, and the roll profile curve of the work roll.

[0078] As can be seen from the above description, the roll shape configuration device for a six-roll cold rolling mill provided in this application can improve roll shape self-holding by using symmetrical variable contact support rolls to uniformly distribute the contact pressure between rolls, thus ensuring the stability of strip shape control during the service life of the support rolls. It can also reduce the harmful contact area and improve the contact pressure peak by using asymmetrical single-tapered intermediate rolls, and improve the edge drop control capability by using asymmetrical single-tapered work rolls. As a result, it can effectively improve the edge drop control capability and the uniformity of the contact pressure distribution between rolls of the six-roll cold rolling mill.

[0079] To further illustrate this solution, this application also provides a specific application example of using the above-mentioned six-roll cold rolling mill roll configuration device to realize the six-roll cold rolling mill roll configuration method, which specifically includes the following:

[0080] The roller profile configuration adopts the variable contact support roller profile shown in Formula I to uniformly increase the contact pressure between rollers, improve the self-holding property of the roller profile, and ensure the stability of the plate shape control during the service life of the support roller. The single taper intermediate roller profile shown in Formula II is adopted to reduce the harmful contact area and improve the contact pressure peak. The single taper work roller profile shown in Formula III is adopted to improve the edge drop control capability.

[0081] Formula I:

[0082]

[0083] Formula II:

[0084]

[0085] Formula III:

[0086]

[0087] Specific roller configurations are as follows: Figure 6 As shown.

[0088] (1) Support roller shape design

[0089] The length L of the support roll body of a certain six-roll cold continuous rolling mill b =1500mm, initial radius R of the support roller b =650mm, the first step is to give the length L of the chamfer curve of the support roller. b1 =50mm and the length of the variable contact curve of the support roller L b2 =200mm, the second step gives the chamfer curve depth h of the support roller. b1 =0.6mm and the depth of the variable contact curve of the support roller h b2 =1.5mm, the third step gives the half-angle of the support roller's roller-shaped foundation curve. Support roller variable contact curve half angle and the half-angle of the chamfer curve of the support roller Step 4: Given the support roller crown Cbw =0.02mm, the fifth step is to support the roller profile parameter A according to the following formula. b1 :

[0090]

[0091] Step 6: Obtain the roller profile parameter A according to the following formula. b2 :

[0092]

[0093] Step 7: Obtain the roller profile parameter A according to the following formula. b3 :

[0094]

[0095] Therefore, a unique support roller profile curve can be determined:

[0096]

[0097] Support roller profile curve as follows Figure 7 As shown.

[0098] (2) Intermediate roll shape design

[0099] Set the length L of the intermediate roll body of a certain six-roll cold rolling mill m =1520mm and initial radius R of the intermediate roller m Based on 325mm, the first step is to specify the length L of the intermediate roller shape control curve. m1 =50mm, the second step is to give the depth h of the intermediate roller shape control curve. m1 =1.2mm, the third step gives the half-angle of the intermediate roller's basic curve. Intermediate roller shape control curve half angle Step 4: Given the crown C of the intermediate roller mw =0.02mm, the fifth step is to obtain the intermediate roll profile parameter A according to the following formula. m1 :

[0100]

[0101] Step 6: Obtain the intermediate roll profile parameter A according to the following formula. m2 :

[0102]

[0103] This allows for the unique determination of a single intermediate roll profile curve:

[0104]

[0105] Intermediate roll profile curve as follows Figure 8As shown, the shape control section of the upper intermediate roll, i.e. the curved section on the left side of the figure, is located on the mill drive side, and the shape control section of the lower intermediate roll, i.e. the curved section on the left side of the figure, is located on the mill operation side. The upper and lower intermediate rolls are arranged in an anti-symmetrical manner.

[0106] (3) Design of working roll shape

[0107] Set the length L of the work roll body of a certain six-roll cold rolling mill w =1750mm and initial radius R of the work roll w Based on 280mm, the first step is to specify the length L of the work roll edge drop control curve. w1 =150mm, the second step is to give the depth h of the work roll edge drop control curve. w1 =1.25mm, the third step is to give the half-angle of the basic curve of the work roll shape. Half angle of work roll edge drop control curve Step 4: Given the crown C of the work roll ww =0.02mm, the fifth step is to obtain the work roll profile parameter A according to the following formula. w1 :

[0108]

[0109] Step 6: Obtain the work roll profile parameter A according to the following formula. w2 :

[0110]

[0111] Therefore, a unique work roll profile curve can be determined:

[0112]

[0113] The working roll profile curve is as follows Figure 9 As shown, the edge drop control section of the upper work roll, i.e. the curved section on the right side of the figure, is located on the mill operation side, and the plate shape control section of the lower work roll, i.e. the curved section on the right side of the figure, is located on the mill drive side. The upper and lower work rolls are arranged in an anti-symmetrical manner.

[0114] From a hardware perspective, in order to effectively improve the edge drop control capability and the uniformity of inter-roll contact pressure distribution of a six-roll cold rolling mill, this application provides an embodiment of an electronic device for implementing all or part of the roll shape configuration method of the six-roll cold rolling mill. The electronic device specifically includes the following components:

[0115] The system comprises a processor, memory, a communications interface, and a bus; wherein the processor, memory, and communications interface communicate with each other via the bus; the communications interface is used to realize information transmission between the six-roll cold rolling mill roll shape configuration device and core business systems, user terminals, and related databases and other related equipment; the logic controller can be a desktop computer, tablet computer, or mobile terminal, etc., and this embodiment is not limited to these. In this embodiment, the logic controller can be implemented with reference to the embodiments of the six-roll cold rolling mill roll shape configuration method and the six-roll cold rolling mill roll shape configuration device in the embodiments, the contents of which are incorporated herein, and repeated details will not be repeated.

[0116] It is understood that the user terminal may include smartphones, tablet computers, network set-top boxes, portable computers, desktop computers, personal digital assistants (PDAs), in-vehicle devices, smart wearable devices, etc. Among these, the smart wearable devices may include smart glasses, smartwatches, smart bracelets, etc.

[0117] In practical applications, some aspects of the six-roll cold rolling mill roll configuration method can be executed on the electronic device side as described above, or all operations can be completed in the client device. The specific choice depends on the processing power of the client device and the limitations of the user's usage scenario. This application does not impose any limitations on this. If all operations are completed in the client device, the client device may further include a processor.

[0118] The aforementioned client device may have a communication module (i.e., a communication unit) that can communicate with a remote server to achieve data transmission. The server may include a server on the task scheduling center side; in other implementation scenarios, it may also include a server on an intermediate platform, such as a server on a third-party server platform that has a communication link with the task scheduling center server. The server may include a single computer device, a server cluster consisting of multiple servers, or a distributed server structure.

[0119] Figure 10 This is a schematic block diagram illustrating the system configuration of the electronic device 9600 according to an embodiment of this application. Figure 10 As shown, the electronic device 9600 may include a central processing unit 9100 and a memory 9140; the memory 9140 is coupled to the central processing unit 9100. It is worth noting that... Figure 10 This is an example; other types of structures can also be used to supplement or replace this structure to achieve telecommunications functions or other functions.

[0120] In one embodiment, the roll profile configuration method function for a six-roll cold rolling mill can be integrated into a central processing unit 9100. The central processing unit 9100 can be configured to perform the following control:

[0121] Step S101: Determine the support roller profile radius and the corresponding support roller profile curve based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half angle and length of the support roller profile basic curve, the half angle and length of the support roller variable contact curve, and the half angle and length of the support roller chamfer curve.

[0122] Step S102: Determine the intermediate roll radius and the corresponding intermediate roll shape curve based on the amplitude of the intermediate roll basic curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half angle and length of the intermediate roll basic curve, and the half angle and length of the intermediate roll plate shape control curve.

[0123] Step S103: Determine the working roll radius and the corresponding working roll shape curve based on the amplitude of the working roll basic curve, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half angle and length of the working roll basic curve, and the half angle and length of the working roll edge drop control curve.

[0124] Step S104: Configure the roll profile of the six-roll cold rolling mill according to the support roll profile curve, the intermediate roll profile curve and the work roll profile curve.

[0125] As can be seen from the above description, the electronic device provided in this application improves the roll shape self-holding ability and ensures the stability of the plate shape control during the service life of the support roll by using symmetrical variable contact support rolls to uniformly distribute the contact pressure between the rolls, adopting asymmetrical single-tapered intermediate rolls to reduce the harmful contact area and improve the contact pressure peaks, and adopting asymmetrical single-tapered work rolls to improve the edge drop control capability. Thus, it can effectively improve the edge drop control capability and the uniformity of the contact pressure distribution between the rolls of a six-roll cold rolling mill.

[0126] In another embodiment, the roll profile configuration device for the six-roll cold rolling mill can be configured separately from the central processing unit 9100. For example, the roll profile configuration device for the six-roll cold rolling mill can be configured as a chip connected to the central processing unit 9100, and the roll profile configuration method function of the six-roll cold rolling mill can be realized through the control of the central processing unit.

[0127] like Figure 10 As shown, the electronic device 9600 may further include: a communication module 9110, an input unit 9120, an audio processor 9130, a display 9160, and a power supply 9170. It is worth noting that the electronic device 9600 does not necessarily need to include these components. Figure 10All components shown; in addition, the electronic device 9600 may also include Figure 10 For components not shown, please refer to existing technologies.

[0128] like Figure 10 As shown, the central processing unit 9100, sometimes also referred to as a controller or operating control, may include a microprocessor or other processor device and / or logic device, which receives inputs and controls the operation of various components of the electronic device 9600.

[0129] The memory 9140 may be, for example, one or more of a cache, flash memory, hard drive, removable media, volatile memory, non-volatile memory, or other suitable devices. It may store the aforementioned failure-related information, and also store a program for executing that information. The central processing unit 9100 may execute the program stored in the memory 9140 to perform information storage or processing, etc.

[0130] Input unit 9120 provides input to central processing unit 9100. Input unit 9120 may be, for example, a keypad or touch input device. Power supply 9170 provides power to electronic device 9600. Display 9160 displays images and text. Display may be, for example, an LCD display, but is not limited thereto.

[0131] The memory 9140 can be a solid-state memory, such as a read-only memory (ROM), random access memory (RAM), a SIM card, etc. It can also be a memory that retains information even when power is off, can be selectively erased, and contains more data; examples of this type of memory are sometimes referred to as EPROMs. The memory 9140 can also be some other type of device. The memory 9140 includes a buffer memory 9141 (sometimes referred to as a buffer). The memory 9140 may include an application / function storage unit 9142 for storing application programs and function programs or processes for executing the operation of the electronic device 9600 via the central processing unit 9100.

[0132] The memory 9140 may also include a data storage unit 9143 for storing data, such as contacts, digital data, pictures, sounds, and / or any other data used by the electronic device. The driver storage unit 9144 of the memory 9140 may include various drivers for the electronic device's communication functions and / or for performing other functions of the electronic device (such as messaging applications, address book applications, etc.).

[0133] The communication module 9110 is a transmitter / receiver 9110 that transmits and receives signals via the antenna 9111. The communication module (transmitter / receiver) 9110 is coupled to the central processing unit 9100 to provide input signals and receive output signals, which can be the same as in a conventional mobile communication terminal.

[0134] Based on different communication technologies, multiple communication modules 9110 can be configured in the same electronic device, such as cellular network modules, Bluetooth modules, and / or wireless LAN modules. The communication module (transmitter / receiver) 9110 is also coupled to a speaker 9131 and a microphone 9132 via an audio processor 9130 to provide audio output via the speaker 9131 and receive audio input from the microphone 9132, thereby realizing typical telecommunications functions. The audio processor 9130 may include any suitable buffer, decoder, amplifier, etc. Additionally, the audio processor 9130 is coupled to a central processing unit 9100, enabling on-device recording via the microphone 9132 and on-device playback of stored sound via the speaker 9131.

[0135] Embodiments of this application also provide a computer-readable storage medium capable of implementing all steps of the six-roll cold rolling mill roll configuration method with the execution subject being a server or client in the above embodiments. The computer-readable storage medium stores a computer program that, when executed by a processor, implements all steps of the six-roll cold rolling mill roll configuration method with the execution subject being a server or client in the above embodiments. For example, when the processor executes the computer program, it implements the following steps:

[0136] Step S101: Determine the support roller profile radius and the corresponding support roller profile curve based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half angle and length of the support roller profile basic curve, the half angle and length of the support roller variable contact curve, and the half angle and length of the support roller chamfer curve.

[0137] Step S102: Determine the intermediate roll radius and the corresponding intermediate roll shape curve based on the amplitude of the intermediate roll basic curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half angle and length of the intermediate roll basic curve, and the half angle and length of the intermediate roll plate shape control curve.

[0138] Step S103: Determine the working roll radius and the corresponding working roll shape curve based on the amplitude of the working roll basic curve, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half angle and length of the working roll basic curve, and the half angle and length of the working roll edge drop control curve.

[0139] Step S104: Configure the roll profile of the six-roll cold rolling mill according to the support roll profile curve, the intermediate roll profile curve and the work roll profile curve.

[0140] As can be seen from the above description, the computer-readable storage medium provided in the embodiments of this application improves the roll shape self-holding ability and ensures the stability of the plate shape control during the service life of the support roll by using symmetrical variable contact support rolls to uniformly distribute the contact pressure between the rolls, adopting asymmetrical single-tapered intermediate rolls to reduce the harmful contact area and improve the contact pressure peaks, and adopting asymmetrical single-tapered work rolls to improve the edge drop control capability. Thus, it can effectively improve the edge drop control capability and the uniformity of the contact pressure distribution between the rolls of a six-roll cold rolling mill.

[0141] Embodiments of this application also provide a computer program product capable of implementing all steps in the six-roll cold rolling mill roll configuration method where the execution subject is a server or client as described in the above embodiments. When executed by a processor, this computer program / instruction implements the steps of the six-roll cold rolling mill roll configuration method. For example, the computer program / instruction implements the following steps:

[0142] Step S101: Determine the support roller profile radius and the corresponding support roller profile curve based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half angle and length of the support roller profile basic curve, the half angle and length of the support roller variable contact curve, and the half angle and length of the support roller chamfer curve.

[0143] Step S102: Determine the intermediate roll radius and the corresponding intermediate roll shape curve based on the amplitude of the intermediate roll basic curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half angle and length of the intermediate roll basic curve, and the half angle and length of the intermediate roll plate shape control curve.

[0144] Step S103: Determine the working roll radius and the corresponding working roll shape curve based on the amplitude of the working roll basic curve, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half angle and length of the working roll basic curve, and the half angle and length of the working roll edge drop control curve.

[0145] Step S104: Configure the roll profile of the six-roll cold rolling mill according to the support roll profile curve, the intermediate roll profile curve and the work roll profile curve.

[0146] As can be seen from the above description, the computer program product provided in this application improves the roll shape self-holding ability and ensures the stability of the plate shape control during the service life of the support roll by using symmetrical variable contact support rolls to uniformly distribute the contact pressure between the rolls, thereby reducing the harmful contact area and improving the contact pressure peak by using asymmetrical single taper intermediate rolls, and improving the edge drop control capability by using asymmetrical single taper work rolls. Thus, it can effectively improve the edge drop control capability and the uniformity of the contact pressure distribution between the rolls of a six-roll cold rolling mill.

[0147] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, the present invention can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention can take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0148] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (devices), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0149] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0150] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0151] Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A method for configuring the roll shape of a six-roll cold rolling mill, characterized in that, The method includes: Based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half-angle and length of the support roller basic curve, the half-angle and length of the support roller variable contact curve, and the half-angle and length of the support roller chamfer curve, the radius of the support roller shape and the corresponding support roller shape curve are determined, wherein the support roller shape curve is as follows: In the formula, The radius of the support roller; The initial radius of the support roller; The coordinates of the support roller body; The half-angle of the support roller's basic curve; The half-angle of the variable contact curve of the support roller; The chamfer curve half-angle of the support roller; To support the length of the roller body; The length of the chamfer curve of the support roller; To support the variable contact curve length of the roller; The amplitude of the basic curve of the support roller body; The amplitude of the variable contact curve of the support roller; The amplitude of the chamfer curve of the support roller; Based on the amplitude of the intermediate roll profile base curve, the amplitude of the intermediate roll plate shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half-angle and length of the intermediate roll profile base curve, and the half-angle and length of the intermediate roll plate shape control curve, the intermediate roll profile radius and the corresponding intermediate roll profile curve are determined, wherein the intermediate roll profile curve is as follows: (Equation II) In the formula, The radius of the intermediate roller; The initial radius of the intermediate roller; The coordinates of the intermediate roller body; The half-angle of the basic curve of the intermediate roller shape; The half-angle of the intermediate roller shape control curve; This refers to the length of the intermediate roller body; The length of the curve is controlled by the shape of the intermediate roller. The amplitude of the basic curve of the intermediate roll shape; The amplitude of the intermediate roller shape control curve; Based on the amplitude of the basic curve of the working roll shape, the amplitude of the working roll edge drop control curve, the initial radius of the working roll, the coordinates of the working roll body, the half-angle and length of the basic curve of the working roll shape, and the half-angle and length of the working roll edge drop control curve, the radius of the working roll shape and the corresponding working roll shape curve are determined, wherein the working roll shape curve is as follows: Equation III: In the formula, The radius of the working roll; The initial radius of the working roll; The coordinates of the working roll body; The half-angle of the basic curve of the working roll shape; The half-angle of the working roll edge drop control curve; The length of the work roll body; The length of the work roll edge drop control curve; The amplitude of the basic curve of the working roll shape; The amplitude of the working roll edge drop control curve; Based on the support roll profile curve, the intermediate roll profile curve, and the work roll profile curve, the roll profile of the six-roll cold rolling mill is configured. Among them, the variable contact support roll profile shown in Formula I is used to uniformly distribute the inter-roll contact pressure, improve the roll profile self-holding ability, and ensure the stability of the sheet shape control during the service life of the support roll; the single taper intermediate roll profile shown in Formula II is used to reduce the harmful contact area and improve the contact pressure peak; and the single taper work roll profile shown in Formula III is used to improve the edge drop control capability.

2. The roll profile configuration method for a six-roll cold rolling mill according to claim 1, characterized in that, Before determining the support roller profile radius and the corresponding support roller profile curve, the following steps are included: The amplitude of the support roller body base curve is determined based on the support roller crown and the half angle of the support roller roll shape base curve. The amplitude of the variable contact curve of the support roller is determined based on the amplitude of the basic curve of the support roller body, the depth of the chamfer curve of the support roller, the depth of the variable contact curve of the support roller, the half angle of the basic curve of the support roller shape, the length of the chamfer curve of the support roller, the half angle of the variable contact curve of the support roller, the length of the variable contact curve of the support roller, and the length of the support roller body. The amplitude of the chamfer curve of the support roller is determined based on the amplitude of the basic curve of the support roller body, the amplitude of the variable contact curve of the support roller, the depth of the variable contact curve of the support roller, the half angle of the basic curve of the support roller shape, the half angle of the variable contact curve of the support roller, the half angle of the chamfer curve of the support roller, the length of the support roller body, and the length of the variable contact curve of the support roller.

3. The roll profile configuration method for a six-roll cold rolling mill according to claim 1, characterized in that, Before determining the intermediate roll profile radius and the corresponding intermediate roll profile curve, the following steps are included: The amplitude of the intermediate roll profile base curve is determined based on the intermediate roll crown and the half angle of the intermediate roll profile base curve. The amplitude of the intermediate roll shape control curve is determined based on the amplitude of the intermediate roll shape base curve, the depth of the intermediate roll shape control curve, the half angle of the intermediate roll shape base curve, the half angle of the intermediate roll shape control curve, the length of the intermediate roll shape control curve, and the length of the intermediate roll body.

4. The roll profile configuration method for a six-roll cold rolling mill according to claim 1, characterized in that, Before determining the work roll profile radius and the corresponding work roll profile curve, the following steps are included: The amplitude of the basic curve of the working roll shape is determined based on the crown of the working roll and the half angle of the basic curve of the working roll shape. The amplitude of the working roll side drop control curve is determined based on the amplitude of the working roll basic curve, the depth of the working roll side drop control curve, the half angle of the working roll basic curve, the half angle of the working roll side drop control curve, the length of the working roll body, and the length of the working roll side drop control curve.

5. The roll profile configuration method for a six-roll cold rolling mill according to claim 1, characterized in that, The shape control sections of the upper and lower intermediate rolls of the rolling mill are arranged asymmetrically, and the edge drop control sections of the upper and lower work rolls of the rolling mill are also arranged asymmetrically.

6. A roll configuration device for a six-roll cold rolling mill, characterized in that, include: The support roller configuration module is used to determine the support roller radius and the corresponding support roller shape curve based on the amplitude of the support roller body basic curve, the amplitude of the support roller variable contact curve, the amplitude of the support roller chamfer curve, the initial radius of the support roller, the coordinates of the support roller body, the half-angle and length of the support roller basic curve, the half-angle and length of the support roller variable contact curve, and the half-angle and length of the support roller chamfer curve. The support roller shape curve is as follows: (Equation I) In the formula, The radius of the support roller; The initial radius of the support roller; The coordinates of the support roller body; The half-angle of the support roller's basic curve; The half-angle of the variable contact curve of the support roller; The chamfer curve half-angle of the support roller; To support the length of the roller body; The length of the chamfer curve of the support roller; To support the variable contact curve length of the roller; The amplitude of the basic curve of the support roller body; The amplitude of the variable contact curve of the support roller; The amplitude of the chamfer curve of the support roller; The intermediate roll configuration module is used to determine the intermediate roll radius and the corresponding intermediate roll shape curve based on the amplitude of the intermediate roll shape base curve, the amplitude of the intermediate roll shape control curve, the initial radius of the intermediate roll, the coordinates of the intermediate roll body, the half-angle and length of the intermediate roll shape base curve, and the half-angle and length of the intermediate roll shape control curve. The intermediate roll shape curve is as follows: (Equation II) In the formula, The radius of the intermediate roller; The initial radius of the intermediate roller; The coordinates of the intermediate roller body; The half-angle of the basic curve of the intermediate roller shape; The half-angle of the intermediate roller shape control curve; This refers to the length of the intermediate roller body; The length of the curve is controlled by the shape of the intermediate roller. The amplitude of the basic curve of the intermediate roll shape; The amplitude of the intermediate roller shape control curve; The work roll configuration module is used to determine the work roll radius and the corresponding work roll shape curve based on the amplitude of the work roll basic curve, the amplitude of the work roll edge drop control curve, the initial radius of the work roll, the work roll body coordinates, the half angle and length of the work roll basic curve, and the half angle and length of the work roll edge drop control curve. The work roll shape curve is as follows: (Equation III) In the formula, The radius of the working roll; The initial radius of the working roll; The coordinates of the working roll body; The half-angle of the basic curve of the working roll shape; The half-angle of the working roll edge drop control curve; The length of the work roll body; The length of the work roll edge drop control curve; The amplitude of the basic curve of the working roll shape; The amplitude of the working roll edge drop control curve; The mill roll profile configuration module is used to configure the roll profile of a six-roll cold rolling mill according to the roll profile curves of the support roll, the intermediate roll, and the work roll. Specifically, the variable contact support roll profile shown in Equation I is used to uniformly distribute the inter-roll contact pressure, improve the roll profile self-holding ability, and ensure the stability of the sheet shape control during the service life of the support roll; the single taper intermediate roll profile shown in Equation II is used to reduce the harmful contact area and improve the contact pressure peak; and the single taper work roll profile shown in Equation III is used to improve the edge drop control capability.

7. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the six-roll cold rolling mill roll configuration method according to any one of claims 1 to 5.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the computer program implements the steps of the six-roll cold rolling mill roll configuration method according to any one of claims 1 to 5.

9. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement the steps of the six-roll cold rolling mill roll configuration method according to any one of claims 1 to 5.

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