Method and system for eliminating wire rod rolling seams
By acquiring the parameters of the finishing mill and the real-time wire rod parameters, and adjusting the operating status of the guide, the problem of surface defects during wire rod rolling was solved, ensuring the appearance and reliability of the finished wire rod.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHANGSHU LONGTENG SPECIAL STEEL CO LTD
- Filing Date
- 2023-08-29
- Publication Date
- 2026-06-23
AI Technical Summary
During the rolling process of large-diameter wire rods, if the clamping guide fails to return to the center position in time, the finished wire rod will have a mottled appearance, affecting its appearance quality and potentially causing malfunctions during use.
By acquiring the mill parameters of the finishing mill, it is determined whether the center points of the round and elliptical holes coincide. The operating status of the guide is set according to the distance between the center points, and the movement of the guide is adjusted to make the wire return to the center position. Further adjustments are made in combination with the real-time wire parameters.
It effectively eliminates the rolling defects on wire rods, improving the quality consistency and reliability of finished wire rods.
Smart Images
Figure CN117340010B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wire rolling technology, and in particular to a method and system for eliminating defects in wire rolling. Background Technology
[0002] With the continuous development of industrial production, the production of large-diameter wire rods is becoming increasingly common. Currently, the finishing mill for large-diameter wire rod rolling consists of a rolling mill and clamping guides, which hold the wire rod in place during rolling. However, if the material fluctuates before the finished product in the finishing mill, and the clamping guides cannot hold the wire rod back to the center position in time, it can easily lead to severe inconsistencies in the width of the three bends of the finished wire rod, also known as uneven surface markings. This not only affects the appearance quality of the product but may also cause malfunctions during use. Therefore, there is an urgent need for a method to eliminate uneven surface markings in wire rod rolling. Summary of the Invention
[0003] The purpose of this invention is to provide a method and system for eliminating surface defects in wire rod rolling, solving the problem that when the material vibrates, the clamping guide cannot hold the wire rod back to the center position in time, resulting in surface defects in the finished wire rod.
[0004] This invention provides a method for eliminating rolled surface defects in wire, applied to a guide, wherein the guide is used to move according to control commands to return the wire to the center position;
[0005] The method includes:
[0006] Obtain the mill parameters of the finishing mill, and determine the initial positions of the circular hole and the elliptical hole based on the mill parameters;
[0007] Determine whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial positions of the circular hole and the elliptical hole;
[0008] If the center point of the circular hole does not coincide with the center point of the elliptical hole, then the center-to-center distance between the center point of the circular hole and the center point of the elliptical hole is determined.
[0009] The guide's operating status is set according to the distance from the center point;
[0010] The real-time wire rod parameters of the rolled wire rod at the exit of the finishing mill are obtained, and the operating status of the guide is adjusted according to the real-time wire rod parameters to eliminate the rolling defects on the wire rod.
[0011] In some embodiments of this application, the mill parameters include mill configuration parameters and guide configuration parameters.
[0012] In some embodiments of this application, determining whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial position of the circular hole and the initial position of the elliptical hole includes:
[0013] Preset rectangular coordinate system XOY;
[0014] The initial positions of the circular hole P0(x0, y0) and the elliptical hole P1(x1, y1) are determined based on the rectangular coordinate system XOY, where x0 represents the initial coordinate of the edge of the circular hole on the X-axis, y0 represents the initial coordinate of the edge of the circular hole on the Y-axis, x1 represents the initial coordinate of the edge of the elliptical hole on the X-axis, and y1 represents the initial coordinate of the edge of the elliptical hole on the Y-axis.
[0015] The center point C(x2, y2) of the circular hole is determined based on the initial position P0(x0, y0) of the circular hole;
[0016] The center point E(x3, y3) of the elliptical hole is determined based on the initial position P1(x1, y1) of the elliptical hole;
[0017] If x2 = x3 and y2 = y3, then the center point of the circular hole coincides with the center point of the elliptical hole;
[0018] Where x2 represents the coordinate of the center point of the circular hole on the X-axis, y2 represents the coordinate of the center point of the circular hole on the Y-axis, x3 represents the coordinate of the center point of the elliptical hole on the X-axis, and y3 represents the coordinate of the center point of the elliptical hole on the Y-axis.
[0019] In some embodiments of this application, determining the center point C(x2, y2) of the circular hole based on the initial position P0(x0, y0) includes:
[0020] The standard equation of the circular hole is determined based on the initial position P0(x0, y0).
[0021] The coordinates of the center of the circular hole are determined according to the standard equation of the circular hole.
[0022] The coordinates of the center of the circle are set as the coordinates of the center point C(x2, y2) of the circular hole.
[0023] In some embodiments of this application, determining the center point E(x3, y3) of the elliptical hole based on the initial position P1(x1, y1) of the elliptical hole includes:
[0024] The standard equation of the elliptical aperture is determined based on the initial position P1(x1, y1) of the elliptical aperture;
[0025] The coordinates of the foci of the elliptical aperture are determined according to the standard equation of the elliptical aperture, and the coordinates of the midpoint between the foci are also determined.
[0026] The midpoint coordinates are set as the coordinates of the center point E(x3, y3) of the elliptical hole.
[0027] In some embodiments of this application, the center point distance d is calculated according to the following formula:
[0028]
[0029] In some embodiments of this application, the operating state of the guide is set according to the distance to the center point, including:
[0030] The guide's movement distance and direction are set based on the distance from the center point;
[0031] There are preset groups D[D1, D2, D3, ..., Dn] corresponding to the center point distances, where n = 1, 2, 3, 4, ..., n, D1 is the first preset distance, D2 is the second preset distance, D3 is the third preset distance, Dn is the nth preset distance, and D1 < D2 < D3 < ... < Dn;
[0032] There is a preset group of moving distances B[B1, B2, B3, ..., Bn], where n = 1, 2, 3, 4, ..., n, B1 is the first preset moving distance, B2 is the second preset moving distance, B3 is the third preset moving distance, Bn is the nth preset moving distance, and B1 < B2 < B3 < ... < Bn;
[0033] Obtain the center point distance d, and set the movement distance of the guide according to the relationship between the center point distance d and each preset center point distance;
[0034] When d≤D1, the first preset moving distance B1 is set as the moving distance of the guide;
[0035] When D1 < d ≤ D2, the second preset moving distance B2 is set as the moving distance of the guide;
[0036] When D2<d≤D3, the third preset moving distance B3 is set as the moving distance of the guide;
[0037] ...;
[0038] When Dn-1<d≤Dn, the nth preset moving distance Bn is set as the moving distance of the guide.
[0039] In some embodiments of this application, adjusting the operating state of the guide based on the real-time wire parameters includes:
[0040] The real-time wire parameters are compared with the target wire parameters to determine the deviation between the rolled wire and the target wire.
[0041] The travel distance of the guide is corrected based on the deviation value.
[0042] In some embodiments of this application, a set of deviation value corresponding groups A[A1, A2, A3, ..., An] is preset, where n = 1, 2, 3, 4, ..., n, A1 is the first preset deviation value, A2 is the second preset deviation value, A3 is the third preset deviation value, An is the nth preset deviation value, and A1 < A2 < A3 < ... < An;
[0043] There is a preset set of correction coefficients h[h1, h2, h3, ..., hn], where n = 1, 2, 3, 4, ..., n, h1 is the first preset correction coefficient, h2 is the second preset correction coefficient, h3 is the third preset correction coefficient, hn is the nth preset correction coefficient, and h1 < h2 < h3 < ... < hn;
[0044] After determining the nth preset moving distance Bn as the moving distance of the guide based on the center point distance d, n = 1, 2, 3, 4, ..., n;
[0045] Obtain the deviation value a, and select the corresponding correction coefficient according to the relationship between the deviation value a and each preset deviation value to correct the movement distance of the guide.
[0046] When a≤A1, the first preset correction coefficient h1 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn*h1;
[0047] When A1 < a ≤ A2, the second preset correction coefficient h2 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn * h2.
[0048] When A2<a≤A3, the third preset correction coefficient h3 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn*h3;
[0049] ...;
[0050] When An-1<a≤An, the nth preset correction coefficient hn is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn*hn.
[0051] The present invention also discloses a system for eliminating wire rolling defects, applied to a guide, the guide being used to move according to control commands to return the wire to the center position;
[0052] The system includes:
[0053] The acquisition module is used to acquire the mill parameters of the finishing mill and the real-time wire parameters of the rolled wire at the finishing mill exit.
[0054] A processing module, connected to the acquisition module, is used to determine the initial positions of the circular hole and the elliptical hole based on the mill parameters; and to determine whether the center point of the circular hole and the center point of the elliptical hole coincide based on the initial positions of the circular hole and the elliptical hole; if the center point of the circular hole and the center point of the elliptical hole do not coincide, the module determines the center-point distance between the center points of the circular hole and the elliptical hole; sets the operating state of the guide based on the center-point distance; and adjusts the operating state of the guide based on the real-time wire parameters.
[0055] A control module is connected to the processing module. The control module is used to control the guide according to the operating status of the guide set by the processing module, so as to eliminate the rolling defects of the wire.
[0056] This invention provides a method for eliminating wire rod rolling defects, the method comprising: acquiring mill parameters of a finishing mill; determining initial positions of a circular hole and an elliptical hole based on the mill parameters; determining whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial positions of the circular hole and the elliptical hole; if the center point of the circular hole and the center point of the elliptical hole do not coincide, determining the center-point distance between the center point of the circular hole and the center point of the elliptical hole; setting the operating state of a guide based on the center-point distance; acquiring real-time wire rod parameters at the finishing mill exit; and adjusting the operating state of the guide based on the real-time wire rod parameters to eliminate wire rod rolling defects.
[0057] This invention determines the center points of the round and elliptical holes by obtaining the mill parameters of the finishing mill, and makes the center points of the two coincide by moving the guide, ensuring that the wire returns to the center position. At the same time, the moving distance of the guide is further adjusted according to the real-time wire parameters of the rolled finished wire, so that the guide can move with the vibration of the wire, adjust the wire to the center position, and eliminate the three-bend surface of the finished product.
[0058] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0059] Figure 1 This is a flowchart illustrating a method for eliminating surface defects in wire rolling according to the present invention.
[0060] Figure 2 This is a functional block diagram of a square system for eliminating the rolled surface of wire rod according to the present invention. Detailed Implementation
[0061] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0062] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used herein have the ordinary meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0063] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof, without excluding other elements or objects. The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "side," and "bottom," indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are merely relational terms determined for the convenience of describing the structural relationships of the various components or elements of the present invention, and do not specifically refer to any component or element in the invention, nor should they be construed as limiting the invention. Terms such as "fixed," "connected," and "linked," etc., should be interpreted broadly, indicating that it can be a fixed connection, an integral connection, or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. For researchers or technicians in the field, the specific meaning of the above terms in this invention can be determined according to the specific circumstances, and they should not be construed as limitations on this invention.
[0064] Example
[0065] This invention provides a method for eliminating rolled surface defects in wire, applied to a guide, wherein the guide is used to move according to control commands to return the wire to the center position.
[0066] like Figure 1 As shown, the method includes:
[0067] S1, Obtain the mill parameters of the finishing mill, and determine the initial position of the circular hole and the initial position of the elliptical hole based on the mill parameters.
[0068] S2, determine whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial position of the circular hole and the initial position of the elliptical hole.
[0069] S3, if the center point of the circular hole does not coincide with the center point of the elliptical hole, then determine the center point distance between the center point of the circular hole and the center point of the elliptical hole.
[0070] S4, set the operating status of the guide based on the distance to the center point.
[0071] S5, obtain the real-time wire parameters of the rolled wire at the exit of the finishing mill, and adjust the operating status of the guide according to the real-time wire parameters to eliminate the rolling defects on the wire.
[0072] In this embodiment, by adjusting the moving distance of the guide, the wire is promptly returned to the center position, ensuring that the elliptical hole is in the center position when entering the round hole, thus eliminating the three-bend pattern on the finished product.
[0073] In some embodiments of this application, the content of the mill parameters has been improved, and the mill parameters include mill configuration parameters and guide configuration parameters.
[0074] In some embodiments of this application, determining whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial position of the circular hole and the initial position of the elliptical hole includes:
[0075] Preset rectangular coordinate system XOY.
[0076] The initial positions of the circular hole P0(x0, y0) and the elliptical hole P1(x1, y1) are determined based on the rectangular coordinate system XOY, where x0 represents the initial coordinate of the edge of the circular hole on the X-axis, y0 represents the initial coordinate of the edge of the circular hole on the Y-axis, x1 represents the initial coordinate of the edge of the elliptical hole on the X-axis, and y1 represents the initial coordinate of the edge of the elliptical hole on the Y-axis.
[0077] The center point C(x2, y2) of the circular hole is determined based on the initial position P0(x0, y0) of the circular hole.
[0078] The center point E(x3, y3) of the elliptical hole is determined based on the initial position P1(x1, y1) of the elliptical hole.
[0079] If x2 = x3 and y2 = y3, then the center point of the circular hole coincides with the center point of the elliptical hole.
[0080] Where x2 represents the coordinate of the center point of the circular hole on the X-axis, y2 represents the coordinate of the center point of the circular hole on the Y-axis, x3 represents the coordinate of the center point of the elliptical hole on the X-axis, and y3 represents the coordinate of the center point of the elliptical hole on the Y-axis.
[0081] In this embodiment, by setting a rectangular coordinate system and determining the coordinates of the center point of the circular hole and the center point of the elliptical hole, it is easy to determine whether the center points of the two coincide. Since the center point coordinates of the two are determined according to the same coordinate system, if the center point coordinates of the two are consistent, it means that the center points of the two coincide. This allows for a quick and accurate determination of the result and provides a basis for subsequent operations.
[0082] In some embodiments of this application, a specific method for determining the center point coordinates of a circular hole is disclosed, wherein the initial position P0(x0, y0) of the circular hole is used to determine the center point C(x2, y2), including:
[0083] The standard equation of the circular hole is determined based on the initial position P0(x0, y0).
[0084] The coordinates of the center of the circular hole are determined according to the standard equation of the circular hole.
[0085] The coordinates of the center of the circle are set as the coordinates of the center point C(x2, y2) of the circular hole.
[0086] In this embodiment, since the initial position P0(x0, y0) of the circular hole is known, which is the coordinates of each point on the edge of the circular hole, the standard equation of the circular hole can be determined based on the coordinates of these points. At the same time, the coordinates of the center of the circular hole can be determined, and the center can be determined as the center point.
[0087] In some embodiments of this application, a specific method for determining the center point coordinates of an elliptical hole is disclosed. The method for determining the center point E(x3, y3) of the elliptical hole based on its initial position P1(x1, y1) includes:
[0088] The standard equation of the elliptical aperture is determined based on the initial position P1(x1, y1) of the elliptical aperture.
[0089] The coordinates of the foci of the elliptical aperture are determined according to the standard equation of the elliptical aperture, and the coordinates of the midpoint between the foci are also determined.
[0090] The midpoint coordinates are set as the coordinates of the center point E(x3, y3) of the elliptical hole.
[0091] In this embodiment, the center point of the elliptical hole is the midpoint of the focus of the elliptical hole. Therefore, it is necessary to first determine the coordinates of the focus of the elliptical hole, and then determine the coordinates of the midpoint, which is the coordinates of the center point of the elliptical hole. If the elliptical hole is not in the center position when entering the round hole, it is easy to cause surface defects in the finished product. Therefore, it is necessary to determine whether the center points of the two coincide. If they coincide, it means that the elliptical hole is in the center position when entering the round hole, ensuring the quality of the finished wire.
[0092] In some embodiments of this application, a specific method for determining the center point distance is disclosed to ensure the accuracy of the center point distance determination. The center point distance d is calculated according to the following formula:
[0093]
[0094] In some embodiments of this application, the operating state of the guide is set according to the distance to the center point, including:
[0095] The guide's moving distance and direction are set based on the distance from the center point.
[0096] There are preset groups D[D1, D2, D3, ..., Dn] corresponding to the center point distances, where n = 1, 2, 3, 4, ..., n, D1 is the first preset distance, D2 is the second preset distance, D3 is the third preset distance, Dn is the nth preset distance, and D1 < D2 < D3 < ... < Dn.
[0097] There is a preset group of moving distances B[B1, B2, B3, ..., Bn], where n = 1, 2, 3, 4, ..., n, B1 is the first preset moving distance, B2 is the second preset moving distance, B3 is the third preset moving distance, Bn is the nth preset moving distance, and B1 < B2 < B3 < ... < Bn.
[0098] Obtain the center point distance d, and set the movement distance of the guide based on the relationship between the center point distance d and each preset center point distance.
[0099] When d≤D1, the first preset moving distance B1 is set as the moving distance of the guide.
[0100] When D1 < d ≤ D2, the second preset moving distance B2 is set as the moving distance of the guide.
[0101] When D2 < d ≤ D3, the third preset moving distance B3 is set as the moving distance of the guide.
[0102] ...
[0103] When Dn-1<d≤Dn, the nth preset moving distance Bn is set as the moving distance of the guide.
[0104] In this embodiment, the guide's moving distance and direction are set according to the center point distance to ensure that after the wire is moved by the guide, the elliptical hole enters the circular hole at the center position, eliminating surface defects. Furthermore, this invention improves the accuracy of the guide's moving distance by setting the guide's moving distance based on the center point distance.
[0105] In some embodiments of this application, adjusting the operating state of the guide based on the real-time wire parameters includes:
[0106] The real-time wire parameters are compared with the target wire parameters to determine the deviation between the rolled wire and the target wire.
[0107] The travel distance of the guide is corrected based on the deviation value.
[0108] In this embodiment, to avoid the goal not being achieved with just one adjustment, the guide movement distance is further corrected by the deviation between the rolled wire and the target wire, thereby improving the accuracy of the guide movement and ensuring the quality of the finished wire.
[0109] In some embodiments of this application, a set of deviation values corresponding to A[A1, A2, A3, ..., An] is preset, where n = 1, 2, 3, 4, ..., n, A1 is the first preset deviation value, A2 is the second preset deviation value, A3 is the third preset deviation value, An is the nth preset deviation value, and A1 < A2 < A3 < ... < An.
[0110] There is a preset set of correction coefficients h[h1, h2, h3, ..., hn], where n = 1, 2, 3, 4, ..., n, h1 is the first preset correction coefficient, h2 is the second preset correction coefficient, h3 is the third preset correction coefficient, hn is the nth preset correction coefficient, and 1 < h1 < h2 < h3 < ... < hn < 1.2.
[0111] After determining the nth preset moving distance Bn as the moving distance of the guide based on the center point distance d, n = 1, 2, 3, 4, ..., n.
[0112] Obtain the deviation value 'a', and select the corresponding correction coefficient based on the relationship between the deviation value 'a' and each preset deviation value to correct the movement distance of the guide.
[0113] When a≤A1, the first preset correction coefficient h1 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn*h1.
[0114] When A1 < a ≤ A2, the second preset correction coefficient h2 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn*h2.
[0115] When A2<a≤A3, the third preset correction coefficient h3 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn*h3.
[0116] ...
[0117] When An-1<a≤An, the nth preset correction coefficient hn is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn*hn.
[0118] In this embodiment, after determining the guide's moving distance based on the center point distance, if the rolled finished wire still has a blemish pattern, the guide's moving distance needs to be further adjusted based on the deviation between the rolled wire and the target wire to ensure the elimination of the blemish pattern in the finished wire.
[0119] The present invention also discloses a system for eliminating wire rolling defects using the above-described method for eliminating wire rolling defects, applied to a guide, wherein the guide is used to move according to control commands to return the wire to the center position.
[0120] like Figure 2 As shown, the system includes:
[0121] The acquisition module is used to acquire the mill parameters of the finishing mill and the real-time wire rod parameters of the rolled wire rod at the exit of the finishing mill.
[0122] A processing module, connected to the acquisition module, is used to determine the initial positions of the circular hole and the elliptical hole based on the mill parameters; and to determine whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial positions of the circular hole and the elliptical hole; if the center point of the circular hole and the center point of the elliptical hole do not coincide, the module determines the center-point distance between the center points of the circular hole and the elliptical hole; sets the operating state of the guide based on the center-point distance; and adjusts the operating state of the guide based on the real-time wire parameters.
[0123] A control module is connected to the processing module. The control module is used to control the guide according to the operating status of the guide set by the processing module, so as to eliminate the rolling defects of the wire.
[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.
[0125] The system provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the modules or steps in the embodiments of the present invention can be further decomposed or combined. For example, the modules in the above embodiments can be merged into one module, or further divided into multiple sub-modules to complete all or part of the functions described above. The names of the modules and steps involved in the embodiments of the present invention are only for distinguishing the various modules or steps and are not considered as an improper limitation of the present invention.
[0126] Those skilled in the art will recognize that the modules and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. The programs corresponding to the software modules and method steps can be placed in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the art. To clearly illustrate the interchangeability of electronic hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the invention.
Claims
1. A method for eliminating surface defects during wire rolling, characterized in that, Applied to a guide, the guide is used to move according to control commands to return the wire to the center position; The method includes: Obtain the mill parameters of the finishing mill, and determine the initial positions of the circular hole and the elliptical hole based on the mill parameters; Determine whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial positions of the circular hole and the elliptical hole; If the center point of the circular hole does not coincide with the center point of the elliptical hole, then the center point distance between the center point of the circular hole and the center point of the elliptical hole is determined. The operation state of the guide is set according to the center point distance, including: setting the moving distance and moving direction of the guide according to the center point distance; a preset center point distance corresponding group D [D1, D2, D3, ..., Dn], where n = 1, 2, 3, 4, ..., n, D1 is the first preset distance, D2 is the second preset distance, D3 is the third preset distance, Dn is the nth preset distance, and D1 < D2 < D3 < ... < Dn; a preset moving distance determination group B [B1, B2, B3, ..., Bn], where n = 1, 2, 3, 4, ..., n, B1 is the first preset moving distance, B2 is the second preset moving distance, B3 is the third preset moving distance, and so on. Distance, Bn is the nth preset movement distance, and B1 < B2 < B3 < ... < Bn; obtain the center point distance d, and set the movement distance of the guide according to the relationship between the center point distance d and each preset center point distance; when d ≤ D1, set the first preset movement distance B1 as the movement distance of the guide; when D1 < d ≤ D2, set the second preset movement distance B2 as the movement distance of the guide; when D2 < d ≤ D3, set the third preset movement distance B3 as the movement distance of the guide; ...; when Dn-1 < d ≤ Dn, set the nth preset movement distance Bn as the movement distance of the guide; The real-time wire parameters of the rolled wire at the exit of the finishing mill are obtained, and the operating status of the guide is adjusted according to the real-time wire parameters to eliminate the rolling defects on the wire.
2. The method for eliminating surface defects in wire rolling according to claim 1, characterized in that, The mill parameters include mill configuration parameters and guide configuration parameters.
3. The method for eliminating surface defects in wire rolling according to claim 1, characterized in that, Determining whether the center point of the circular hole coincides with the center point of the elliptical hole based on the initial positions of the circular hole and the elliptical hole includes: Preset rectangular coordinate system XOY; The initial position P0(x0, y0) of the circular hole and the initial position P1(x1, y1) of the elliptical hole are determined based on the rectangular coordinate system XOY, where x0 represents the initial coordinate of the edge of the circular hole on the X-axis, y0 represents the initial coordinate of the edge of the circular hole on the Y-axis, x1 represents the initial coordinate of the edge of the elliptical hole on the X-axis, and y1 represents the initial coordinate of the edge of the elliptical hole on the Y-axis. The center point C(x2, y2) of the circular hole is determined based on the initial position P0(x0, y0) of the circular hole. The center point E(x3, y3) of the elliptical hole is determined based on the initial position P1(x1, y1) of the elliptical hole. If x2 = x3 and y2 = y3, then the center point of the circular hole coincides with the center point of the elliptical hole; Where x2 represents the coordinate of the center point of the circular hole on the X-axis, y2 represents the coordinate of the center point of the circular hole on the Y-axis, x3 represents the coordinate of the center point of the elliptical hole on the X-axis, and y3 represents the coordinate of the center point of the elliptical hole on the Y-axis.
4. The method for eliminating rolling defects in wire rods according to claim 3, characterized in that, Determining the center point C(x2, y2) of the circular hole based on its initial position P0(x0, y0) includes: Determine the standard equation of the circular hole based on the initial position P0(x0, y0); The coordinates of the center of the circular hole are determined according to the standard equation of the circular hole. The coordinates of the center of the circle are set as the coordinates of the center point C(x2, y2) of the circular hole.
5. The method for eliminating rolling defects in wire rods according to claim 4, characterized in that, Determining the center point E(x3, y3) of the elliptical hole based on its initial position P1(x1, y1) includes: The standard equation of the elliptical aperture is determined based on the initial position P1(x1, y1) of the elliptical aperture; The coordinates of the foci of the elliptical aperture are determined according to the standard equation of the elliptical aperture, and the coordinates of the midpoint between the foci are also determined. The midpoint coordinates are set as the coordinates of the center point E(x3, y3) of the elliptical hole.
6. The method for eliminating rolling defects in wire rods according to claim 5, characterized in that, The distance d between the center points is calculated according to the following formula: 。 7. The method for eliminating surface defects in wire rolling according to claim 1, characterized in that, Adjusting the operating status of the guide based on the real-time cable parameters includes: The real-time wire parameters are compared with the target wire parameters to determine the deviation between the rolled wire and the target wire. The travel distance of the guide is corrected based on the deviation value.
8. The method for eliminating rolling defects in wire rods according to claim 7, characterized in that, There are preset deviation value corresponding groups A[A1, A2, A3, ..., An], where n = 1, 2, 3, 4, ..., n, A1 is the first preset deviation value, A2 is the second preset deviation value, A3 is the third preset deviation value, An is the nth preset deviation value, and A1 < A2 < A3 < ... < An; There is a preset set of correction coefficients h[h1, h2, h3, ..., hn], where n = 1, 2, 3, 4, ..., n, h1 is the first preset correction coefficient, h2 is the second preset correction coefficient, h3 is the third preset correction coefficient, hn is the nth preset correction coefficient, and h1 < h2 < h3 < ... < hn; After determining the nth preset moving distance Bn as the moving distance of the guide based on the center point distance d, n = 1, 2, 3, 4, ..., n; Obtain the deviation value a, and select the corresponding correction coefficient according to the relationship between the deviation value a and each preset deviation value to correct the movement distance of the guide. When a≤A1, the first preset correction coefficient h1 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn. h1; When A1 < a ≤ A2, the second preset correction coefficient h2 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn. h2; When A2 < a ≤ A3, the third preset correction coefficient h3 is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn. h3; ……； When An-1 < a ≤ An, the nth preset correction coefficient hn is selected to correct the nth preset moving distance Bn, and the corrected distance is Bn. hn.
9. A system for eliminating surface defects in wire rolling, characterized in that, Applied to a guide, the guide is used to move according to control commands to return the wire to the center position; The system includes: The acquisition module is used to acquire the mill parameters of the finishing mill and the real-time wire parameters of the rolled wire at the finishing mill exit. A processing module, connected to the acquisition module, is used to determine the initial position of the circular hole and the initial position of the elliptical hole according to the mill parameters; and to determine whether the center point of the circular hole and the center point of the elliptical hole coincide according to the initial positions of the circular hole and the elliptical hole; if the center point of the circular hole and the center point of the elliptical hole do not coincide, then the center point distance between the center point of the circular hole and the center point of the elliptical hole is determined; the operating state of the guide is set according to the center point distance, including: setting the moving distance and moving direction of the guide according to the center point distance; a preset center point distance corresponding group D [D1, D2, D3, ..., Dn] is provided, where n = 1, 2, 3, 4, ..., n, D1 is the first preset distance, D2 is the second preset distance, D3 is the third preset distance, Dn is the nth preset distance, and D1 < D2 < D3 < ... < Dn; a preset moving distance determination group B [B1 [B1, B2, B3, ..., Bn], where n = 1, 2, 3, 4, ..., n, B1 is the first preset moving distance, B2 is the second preset moving distance, B3 is the third preset moving distance, Bn is the nth preset moving distance, and B1 < B2 < B3 < ... < Bn; obtain the center point distance d, and set the moving distance of the guide according to the relationship between the center point distance d and each preset center point distance; when d ≤ D1, set the first preset moving distance B1 as the moving distance of the guide; when D1 < d ≤ D2, set the second preset moving distance B2 as the moving distance of the guide; when D2 < d ≤ D3, set the third preset moving distance B3 as the moving distance of the guide; ...; when Dn-1 < d ≤ Dn, set the nth preset moving distance Bn as the moving distance of the guide; and adjust the operating status of the guide according to the real-time wire parameters; A control module is connected to the processing module. The control module is used to control the guide according to the operating status of the guide set by the processing module, so as to eliminate the rolling defects of the wire.