CN-122018607-A - Wire surface glossiness control method and system

CN122018607ACN 122018607 ACN122018607 ACN 122018607ACN-122018607-A

Abstract

The application provides a method and a system for controlling the surface glossiness of a wire rod, which relate to the technical field of metal wire rod surface glossiness control and have the technical scheme that the method and the system are characterized in that the initial glossiness and the real-time glossiness of the wire rod surface are obtained; and calculating a first deviation between the predicted glossiness of the node at the same time and the real-time glossiness and a second deviation between the real-time glossiness of the node at different times to judge the change trend of the glossiness. The method and the system for controlling the surface glossiness of the wire rod have the advantages of realizing advanced prediction and subsequent accurate compensation on the surface glossiness of the wire rod in the rough wire drawing process and ensuring uniform and coordinated surface glossiness of the wire diameter.

Inventors

DENG GUANGHONG
Deng Ruihan

Assignees

佛山市三水金得力实业有限公司

Dates

Publication Date: 20260512
Application Date: 20260311

Claims (10)

1. A method for controlling the surface glossiness of a wire rod, comprising the steps of: acquiring initial glossiness and real-time glossiness of the wire surface; Inputting the initial glossiness and the real-time glossiness into a trained long-short-period memory network model to generate predicted glossiness within 2 seconds in future; calculating a first deviation between the predicted glossiness and the real-time glossiness of the same time node and a second deviation between the real-time glossiness of different time nodes to judge the change trend of the glossiness; According to the absolute value of the first deviation and the change trend of the glossiness represented by the second deviation, at least one parameter of drawing speed, die pressure, lubricating fluid flow and temperature is regulated in a grading manner; And detecting the glossiness of the surface of the regulated wire rod and generating compensation information, wherein the compensation information is used for carrying out glossiness compensation in a fine wire painting process.
2. The method of controlling the glossiness of the wire surface according to claim 1 wherein the step of obtaining the initial glossiness and the real-time glossiness of the wire surface further comprises: Generating pretreatment information according to the initial glossiness of the wire rod surface, wherein the pretreatment information at least comprises a pretreatment type and corresponding equipment parameters; Performing preprocessing operation according to the preprocessing information; And updating the initial glossiness and the real-time glossiness after the operation is acquired.
3. The method according to claim 2, wherein the step of stepwise adjusting at least one parameter of drawing speed, die pressure, flow rate of lubricating fluid, and temperature according to the change trend of the glossiness characterized by the absolute value of the first deviation and the second deviation comprises: when the absolute value of the first deviation is less than or equal to 1GU and the second deviation does not represent an increasing trend, automatically fine-tuning parameters; when the absolute value of the first deviation is 1-1.5 GU or the second deviation represents an intermittent increasing trend, triggering a first-stage early warning and automatically adjusting parameters; and triggering a secondary early warning and suspending the working procedure when the absolute value of the first deviation is more than 1.5GU or the second deviation represents a continuity increasing trend.
4. The method of claim 3, wherein when the absolute value of the first deviation is >1.5GU or the second deviation indicates a continuity increasing trend, the step of triggering the secondary early warning and suspending the process further comprises: Detecting the fault condition of equipment, and checking a prediction deviation according to which the predicted glossiness is generated and a standard deviation value set according to the target glossiness of the wire; When the equipment has no fault, setting new prediction deviation and standard deviation value according to an actual scene and restarting the equipment, wherein the actual scene is defined by a wire material, a target wire diameter, target glossiness and a current processing stable state; Restarting after repairing the equipment when the equipment has faults; all current data are saved and associated with the unique wire code for retrospective analysis.
5. The method of controlling surface gloss of a wire according to claim 4, wherein when the apparatus is free from malfunction, the step of setting a new prediction deviation and standard deviation value according to an actual scene and restarting the apparatus further comprises: when the data interruption condition exists, supplementing missing data by adopting a linear extrapolation method or a prediction model based on technological parameter association according to effective historical data before interruption, and making adjustment; re-planning the actual scene according to the completed and adjusted data; And setting new prediction deviation and standard deviation value according to the re-planned actual scene and restarting the equipment.
6. The method according to claim 5, wherein when there is a data interruption, the step of supplementing the missing data with a linear extrapolation or a prediction model based on a process parameter association and making an adjustment based on the effective history data before interruption further comprises: If the data interruption time is less than or equal to 100ms, supplementing the drawing speed and the mold pressure technological parameters by adopting a linear extrapolation method based on the data change trend before interruption; and if the data interruption time length is more than 100ms, for the real-time glossiness data, performing back-push complement by establishing a mapping relation model of glossiness, drawing speed, die pressure and lubricating fluid parameters.
7. The method of controlling surface gloss of a wire according to claim 6, wherein when the apparatus is free from malfunction, the step of setting a new prediction deviation and standard deviation value according to an actual scene and restarting the apparatus further comprises: When no data interruption condition exists, generating new prediction deviation and standard deviation value based on the complete processing data of the current wire rod; Rechecking whether the new prediction deviation and the standard deviation are in the range of the effective parameters of the same scene of the history, whether the equipment regulation capacity limit is met and whether the new prediction deviation and the standard deviation are matched with the current processing trend according to the historical processing data; Restarting the device after verification is correct.
8. The method of controlling the glossiness of the wire surface according to claim 7 wherein the step of detecting the glossiness of the adjusted wire surface and generating the compensation information further comprises: calculating the actual deviation between the adjusted glossiness and the target glossiness; when the actual deviation is not more than a compensation error value preset based on the wire type, generating a compensation instruction containing the actual deviation information so as to adjust the thickness of the paint layer and the curing temperature of the paint applying mechanism; And when the actual deviation is larger than the compensation error value, generating compensation information containing deviation reason analysis, and updating drawing adjustment parameters to trigger wire rod reprocessing.
9. The method of controlling the glossiness of the wire surface according to claim 8 wherein the step of detecting the glossiness of the adjusted wire surface and generating the compensation information further comprises: collecting wire rod information, process parameters, glossiness data and quality feedback in the historical processing process, and establishing a structured database; and performing incremental training on the long-short-period memory network model by utilizing the historical data in the structured database so as to optimize the prediction accuracy of the long-short-period memory network model.
10. A wire surface gloss control system, the system comprising: a first acquisition module (201) for acquiring initial glossiness and real-time glossiness of the wire surface; a first control module (202) for inputting the initial gloss and the real-time gloss into a trained long-short-term memory network model, generating a predicted gloss within 2 seconds of the future; the second control module (203) is used for calculating a first deviation between the predicted glossiness and the real-time glossiness at the same time node and a second deviation between the real-time glossiness at different time nodes so as to judge the change trend of the glossiness; The third control module (204) is used for adjusting at least one parameter of the drawing speed, the die pressure, the flow rate of lubricating liquid and the temperature in a grading manner according to the absolute value of the first deviation and the change trend of the glossiness represented by the second deviation; And the fourth control module (205) is used for detecting the glossiness of the surface of the regulated wire rod and generating compensation information, wherein the compensation information is used for carrying out glossiness compensation in the fine wire painting process.

Description

Wire surface glossiness control method and system Technical Field The application relates to the technical field of metal wire surface glossiness control, in particular to a wire surface glossiness control method and system. Background In the metal wire processing, the uniformity of the surface glossiness of the rough wire after being drawn and fine directly influences the subsequent painting quality and the product performance. In the prior art, a single glossiness sensor is adopted for fixed-point detection, so that the problems of large detection blind area, only post alarm, incapability of associating technological parameters with a trace source and the like exist, the manual adjustment is lagged, the glossiness fluctuation range is large (usually +/-5 GU), and the product qualification rate is lower than 85%. In addition, the detection data and the drawing equipment are not linked, automatic regulation and control cannot be realized, and a technical scheme with real-time performance, relevance and closed-loop control capability is needed. In view of the above problems, no effective technical solution is currently available. Disclosure of Invention The application aims to provide a method and a system for controlling the surface glossiness of a wire rod, which have the advantages of realizing advanced prediction and subsequent accurate compensation on the surface glossiness of the wire rod in a thick wire drawing process and ensuring uniform and coordinated surface glossiness of the wire diameter. In a first aspect, the present application provides a method for controlling the surface glossiness of a wire rod, the method comprising the steps of: acquiring initial glossiness and real-time glossiness of the wire surface; inputting the initial glossiness and the real-time glossiness into a trained long-short-period memory network model to generate predicted glossiness within 2 seconds in the future; Calculating a first deviation between the predicted glossiness and the real-time glossiness of the same time node and a second deviation between the real-time glossiness of different time nodes, and adjusting parameters to judge the change trend of the glossiness; According to the absolute value of the first deviation and the change trend of the glossiness represented by the second deviation, at least one parameter of drawing speed, die pressure, lubricating fluid flow and temperature is regulated in a grading manner; And detecting the glossiness of the surface of the regulated wire rod and generating compensation information, wherein the compensation information is used for carrying out glossiness compensation in a fine wire painting process. Further, in the present application, the step of obtaining the initial gloss and the real-time gloss of the wire surface further comprises: Generating pretreatment information according to the initial glossiness of the wire rod surface, wherein the pretreatment information at least comprises the pretreatment information and corresponding equipment parameters; Performing preprocessing operation according to the preprocessing information; And updating the initial glossiness and the real-time glossiness after the operation is acquired. Further, in the present application, the step of adjusting at least one parameter of the drawing speed, the die pressure, the flow rate of the lubricating fluid and the temperature in stages according to the change trend of the glossiness characterized by the absolute value of the first deviation and the second deviation includes: when the absolute value of the first deviation is less than or equal to 1GU and the second deviation does not represent an increasing trend, automatically fine-tuning parameters; when the absolute value of the first deviation is 1-1.5 GU or the second deviation represents an intermittent increasing trend, triggering a first-stage early warning and automatically adjusting parameters; and triggering a secondary early warning and suspending the working procedure when the absolute value of the first deviation is more than 1.5GU or the second deviation represents a continuity increasing trend. Further, in the present application, when the absolute value of the first deviation is >1.5GU or the second deviation indicates a continuity increasing trend, the step of triggering the second-level early warning and suspending the procedure further includes: Detecting the fault condition of equipment, and checking a prediction deviation according to which the predicted glossiness is generated and a standard deviation value set according to the target glossiness of the wire; When the equipment has no fault, setting new prediction deviation and standard deviation value according to an actual scene and restarting the equipment, wherein the actual scene is defined by a wire material, a target wire diameter, target glossiness and a current processing stable state; Restarting after repairing the equipment when the equipment has faults; a