Roll-changing and groove-changing intelligent scheduling process for bar rolling
By implementing an intelligent roll and groove changing process in bar rolling, real-time data collection and analysis, optimization of groove changing plans, and standardized operations, the problem of relying on manual experience for roll and groove changing in bar rolling production has been solved, resulting in improved product quality and increased production efficiency.
Patent Information
- Application Number
- CN202511362764.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2026-01-23
AI Technical Summary
In the current bar rolling production, the process of changing rolls and grooves relies on manual experience, which leads to problems such as decreased surface quality of rolled products, production interruptions, high risk of equipment failure, and chaotic management.
A smart scheduling process for changing rolls and grooves in bar rolling is adopted. Through real-time data acquisition and analysis, the timing of changing rolls and grooves is accurately determined, the groove changing plan is optimized, the operation is standardized and the groove changing process is monitored, and a roll management system is established to realize intelligent groove changing.
Precise control of roll and groove changing timing ensures product quality, improves production efficiency, reduces downtime, lowers equipment failure risk, and enables precise management and continuous optimization of rolls.
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of bar rolling, in particular to a bar rolling roll changing and groove changing intelligent scheduling process. BACKGROUND
[0002] In bar rolling production, roll changing and groove changing are key links affecting production efficiency and product quality. The traditional roll changing and groove changing process relies on manual experience for judgment, which has many problems: first, the timing of groove changing is determined by experience, which is easy to cause the surface quality of the rolled piece to decline (such as the appearance of defects such as meat loss and cracks), or to cause the roll to be wasted by being replaced too early; second, the roll changing and groove changing plan is out of sync with the production rhythm, which often causes production to be interrupted due to temporary shutdown for roll changing and groove changing, thereby reducing the rolling mill operation rate; third, the roll changing and groove changing operation lacks standardized parameter guidance, such as roll gap adjustment error and guide installation gap control, which easily affects the subsequent rolling precision; fourth, roll management is chaotic, roll processing quality inspection is not standardized, and roll life tracking is missing, which causes unqualified rolls to be put into operation or the roll to be used beyond its service life, thereby increasing the risk of equipment failure. In addition, there is a lack of systematic inspection standards and data records after roll changing and groove changing, which makes it difficult to trace the causes of problems and is not conducive to continuous process optimization. SUMMARY
[0003] (I) Technical problems solved In view of the deficiencies of the prior art, the present application provides a bar rolling roll changing and groove changing intelligent scheduling process, which has the advantages of accurately controlling the timing of roll changing and groove changing and ensuring product quality, and solves the problem of surface quality decline of the rolled piece.
[0004] (II) Technical solutions To achieve the above-mentioned purpose of accurately controlling the timing of roll changing and groove changing and ensuring product quality, the present application provides the following technical solutions: a bar rolling roll changing and groove changing intelligent scheduling process, comprising S1 data acquisition and analysis before roll changing and groove changing, S2 roll changing and groove changing plan generation and optimization, S3 roll changing and groove changing execution and monitoring, S4 post-changing inspection and data updating, and S5 intelligent roll management, wherein S1 comprises S101 real-time data acquisition and S102 data analysis and determination; Among them, S2 roll changing and groove changing plan generation and optimization comprises S201 preliminary plan generation and S202 plan optimization; Among them, S3 roll changing and groove changing execution and monitoring comprises S301 groove changing operation and S302 roll changing operation; Among them, S4 post-changing inspection and data updating comprises S401 post-changing inspection and S402 data updating and feedback; Among them, S5 intelligent roll management comprises S501 roll processing and inspection and S502 roll life management.
[0005] Preferably, the S101 real-time data acquisition comprises: Through the sensor and control system, the rolling tonnage of each rack groove is collected in real time, and the current cumulative rolling amount of each rack groove is recorded. For example, the current cumulative rolling amount of the rough rolling 1-6 racks is 12000 tons, and the current cumulative rolling amount of the medium rolling 7-12 racks is 8000 tons; The surface state information of the rolling groove is collected, and the image recognition technology is used to detect whether there is meat loss, abnormal excessive wear, crack defect, the wear degree is quantified as 0-10 levels, and the wear degree of 8 levels and above is determined as needing to be replaced; The operation parameters of the rolling mill are recorded, such as rolling speed (0.112-18m / s) and rolling force, and the stability of the equipment operation is analyzed.
[0006] Preferably, the S102 data analysis and determination comprises: The system compares the current cumulative rolling amount with the preset rolling tonnage quota of each rack groove (referring to the rolling tonnage standard of different specifications of bars, such as the maximum rolling tonnage of 15000 tons allowed for the rough rolling 1 rack of Φ32-Φ38 specification, and the allowed deviation of +2000 tons), calculates the remaining rolling tonnage and the predicted groove replacement time, and generates the groove replacement warning information. Combined with the rolling groove surface state detection result and the abnormal rolling parameter (such as size fluctuation caused by groove problem), whether the roll replacement or groove replacement is needed is comprehensively determined, and the roll replacement and groove replacement warning information is generated.
[0007] Preferably, the S201 preliminary plan generation comprises: The system arranges the replacement of the rolling groove that reaches the rolling tonnage quota and has surface defects exceeding the standard, preliminarily determines the rack, time and required rolling stock type for roll replacement and groove replacement, and generates the roll replacement and groove replacement warning information. When considering the rolling plan arrangement, such as changing the variety and specification, the roll replacement and groove replacement work of the related rack is planned synchronously to avoid repeated downtime.
[0008] Preferably, the S202 plan optimization comprises: Based on the production rhythm (such as the rolling rhythm of 150 billets per 40-50 seconds), the roll replacement and groove replacement time is optimized, the roll replacement and groove replacement is arranged in the gap without steel or planned maintenance time of the rolling line, the non-production downtime is reduced, the single groove replacement downtime is controlled within 5 minutes, and the roll replacement downtime is controlled within 30 minutes. The rolling stock scheduling is optimized, the required rolling stock (which has been processed and accepted) is transported to the roll replacement trolley waiting position in advance according to the roll replacement plan, and the rolling stock is ensured to be in place when the roll replacement is performed.
[0009] Preferably, the S301 groove replacement operation comprises: The system sends a groove changing instruction, and after the operator receives the instruction, the operator switches the "on-site / centralized" key of the on-site operation box to the "on-site" file, and changes the groove according to the preset program: turn off the cooling water → select the groove changing rack → loosen the rack locking → move out the rack → polish the rolling groove → adjust the roll gap (set according to the standard, error ±0.5mm) → install new rolling groove guide (the gap between the guide and the rolling groove is not greater than 15mm for rough rolling machine and not greater than 10mm for medium rolling machine) → move in the rack and lock it → turn on the cooling water; The system monitors the groove changing process in real time, and confirms whether each step is in place through sensors, such as whether the rack locking state and the roll gap value meet the requirements; S302 roll changing operation: Horizontal rolling mill roll changing: the system controls the roll changing trolley to move to the specified rack, and completes the rack locking loosening according to the program → moves out the rack → replaces the new rack (cleans the sliding base and applies oil) → moves in the rack → locks it → connects the cooling water and hydraulic pipeline, and monitors the bracket pin state and the shaft butt joint accuracy in real time during the process; Vertical rolling mill roll changing: similar to the horizontal rolling mill process, the key is to monitor the rack lifting position (such as the alignment accuracy when lowering to the roll changing trolley, error ≤5mm) and the safety pin installation.
[0010] Preferably, during the roll changing process of the S302 roll changing operation, the system records various parameters such as the roll changing trolley moving speed (11.68-116.8m / min) and the rack lifting speed (1.36-13.6m / min), to ensure that they meet the equipment operation standards.
[0011] Preferably, the S401 post-changing acceptance: After the groove changing is completed, the roll gap value and the guide centering condition of the new rolling groove (the deviation between the guide center line and the rolling line is ≤2mm) are detected, and the rolling piece size is confirmed to be qualified (such as Φ32mm rod size deviation ≤±0.3mm) through trial rolling; After the roll changing is completed, the rolling mill assembly quality is checked, such as the roll shifting value being controlled below 0.03mm and the roll misalignment being ≤2mm, to ensure that the equipment operates normally; S402 data updating and feedback: The system updates the cumulative rolling tonnage of the rack rolling groove to 0, records the roll changing and groove changing time, the operator, and the roll number information, and forms the roll changing and groove changing file; The downtime of this roll changing and groove changing and the post-changing equipment operation state are analyzed, and the data is fed back to the plan optimization module to continuously optimize the subsequent scheduling plan.
[0012] Preferably, the S501 roll processing and acceptance: The system sends a processing task to the roll processing workshop according to the roll changing plan, and clearly indicates the pass parameter, roll neck and roll body diameter requirement (for example, the roll neck diameter error is less than or equal to 0.1 mm), and after processing is completed, the acceptance information (for example, the milling acceptance record) is recorded by scanning the code, the qualified roll is stored in the warehouse and is marked as available.
[0013] Preferably, the S502 roll life management comprises the following steps: The use frequency, cumulative rolling tonnage and repair frequency information of each roll are recorded, when the roll diameter is less than the minimum use diameter or there is an unrepairable crack, the roll is automatically determined to be scrapped, a scrap instruction is generated and a red paint mark is marked.
[0014] (Three) beneficial effects Compared with the prior art, the present application provides a bar rolling roll changing and groove changing intelligent scheduling process, which has the following beneficial effects: 1. The bar rolling roll changing and groove changing intelligent scheduling process accurately controls the roll changing and groove changing time, guarantees product quality, collects the rolling tonnage (for example, the rough rolling 1-6 stands allow rolling tonnage deviation + 2000 tons, and the finishing rolling 17-20 stands + 500 tons) and surface state data in real time, automatically determines the replacement requirement in combination with the preset standard, avoids the rolling piece surface defects (such as nodulation and wrong tool) caused by excessive wear of the rolling groove, ensures that the end of the finished product is flat and has no burrs, and the size accuracy meets the requirements, at the same time, the roll gap error (±0.5mm) and the guide clearance (rough rolling ≤15mm, finishing rolling ≤5mm) are strictly controlled during groove changing, the rolling stability is ensured, and the size fluctuation is reduced.
[0015] 2. The bar rolling roll changing and groove changing intelligent scheduling process optimizes production scheduling and improves operation efficiency, combines the rolling rhythm (for example, 150 square billets per 40-50 seconds), coordinates the roll changing and groove changing plan with the production gap and maintenance time, reduces the non-production downtime, prepares qualified rolls in advance through intelligent scheduling of roll spare parts, accurately sends the qualified rolls to the roll changing position, shortens the roll changing and groove changing operation time, and improves the effective operation rate of the rolling mill.
[0016] 3. The bar rolling roll changing and groove changing intelligent scheduling process standardizes the operation and traces the whole process, reduces the management cost, clearly indicates the roll changing and groove changing steps (such as horizontal mill stand moving out and vertical mill lifting), and parameters (such as roll changing trolley walking speed 11.68-116.8m / min), standardizes the operation process, reduces the human error, establishes the roll whole life cycle file, records the processing acceptance, use frequency and scrap reason information, realizes the accurate management of the roll, avoids the unqualified roll online, and reduces the equipment failure risk and spare part waste.
[0017] 4、The rod rolling roll changing and groove changing intelligent scheduling process, the application data driven continuous optimization, improve the process stability, through the record roll changing and groove changing rolling data (such as rolling piece size, equipment operating parameter), analyze the influence of roll changing and groove changing on production, continuously optimize the roll changing and groove changing plan and parameter setting (such as rolling groove rolling tonnage quota, guide installation standard), form a closed-loop improvement mechanism, guarantee the stability and consistency of long-term production. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.
[0019] The application provides a technical method, in particular to a rod rolling roll changing and groove changing intelligent scheduling process; A process summary of a rod rolling roll changing and groove changing intelligent scheduling process; The process is based on the demand of roll changing and groove changing in the rod rolling process, and realizes accurate planning, efficient execution and whole-process monitoring of roll changing and groove changing through an intelligent scheduling system, optimizes the rhythm of roll changing and groove changing, reduces non-production time, and improves the rolling mill operation rate and product quality stability in combination with rolling groove rolling tonnage, equipment state and other parameters.
[0020] A rod rolling roll changing and groove changing intelligent scheduling process, comprising the following processes: S1 data acquisition and analysis before roll changing and groove changing: S101 real-time data acquisition: The rolling tonnage of each rack rolling groove is acquired in real time through a sensor and a control system, and the cumulative rolling amount of the current rolling groove of each rack rolling mill is recorded, for example, the current cumulative rolling amount of the rough rolling 1-6 racks is 12000 tons, and the current cumulative rolling amount of the medium rolling 7-12 racks is 8000 tons; The surface state information of the rolling groove is acquired, and whether the rolling groove has meat loss, abnormal excessive wear, crack defects or not is detected through image recognition technology, the wear degree is quantified as 0-10 levels, and the wear degree of 8 levels and above is determined as needing to be replaced; The rolling mill operating parameters, such as rolling speed (0.112-18 m / s) and rolling force, are recorded, and the equipment operation stability is analyzed; S102 data analysis and determination: The system compares the current cumulative rolling amount with the preset rolling tonnage quota of each pass, calculates the remaining rolling tonnage and the estimated slot changing time, and generates a warning information of roll changing and slot changing; The system combines the detection results of the rolling groove surface state and the abnormal rolling parameters (such as size fluctuation caused by rolling groove problems), comprehensively determines whether roll changing or slot changing is needed, and generates a warning information of roll changing and slot changing; S2 Roll changing and slot changing plan generation and optimization: S201 Preliminary plan generation: The system arranges the rolling grooves that reach the rolling tonnage quota and exceed the surface defect standard for replacement in priority according to the warning information, and preliminarily determines the rack, time and required roll spare part model of roll changing and slot changing; Considering the rolling plan arrangement, such as changing the variety and specification, the roll changing and slot changing work of related racks is planned synchronously to avoid repeated downtime; S202 Plan optimization: Based on the production rhythm (such as 150 billets per 40-50 seconds rolling rhythm), the roll changing and slot changing time is optimized, the roll changing and slot changing is arranged in the gap of no steel or planned maintenance time of rolling line to reduce non-production downtime, the target is to control the single slot changing downtime within 5 minutes and the roll changing downtime within 30 minutes; Optimize roll spare part scheduling, according to the roll changing plan, the required roll (already processed and accepted) is transported to the roll changing trolley waiting position in advance to ensure that the spare part is in place when changing the roll; S3 Roll changing and slot changing execution and monitoring: S301 Slot changing operation: The system issues a slot changing instruction, the operator switches the "on-site / centralized" key of the on-site operation box to "on-site" file after receiving the instruction, and performs slot changing according to the preset program: turn off the cooling water → select the slot changing rack → loosen the rack locking → move out the rack → polish the rolling groove → adjust the roll gap (set according to the standard, error ±0.5mm) → install new rolling groove guide (the gap between guide and rolling groove is not more than 15mm for rough rolling machine and not more than 10mm for intermediate rolling machine) → move in the rack and lock it → turn on the cooling water; The system monitors the slot changing process in real time, and confirms whether each step is in place through sensors, such as the rack locking state and whether the roll gap value meets the requirements; S302 Roll changing operation: Horizontal rolling mill roll changing: the system controls the roll changing trolley to move to the specified rack, loosens the rack locking according to the program → moves out the rack → replaces the new rack (cleans the sliding base and applies oil) → moves into the rack → locks it → connects the cooling water and hydraulic pipeline, and monitors the bracket pin state and shaft butt joint accuracy in real time during the process; Roll changing of vertical rolling mill: similar to the process of horizontal rolling mill, the focus is on monitoring the position of the frame lifting (such as the alignment accuracy when lowering to the roll changing trolley, error ≤5mm) and the installation of safety pins; S302 Roll changing operation During the roll changing process, the system records various parameters, such as the moving speed of the roll changing trolley (11.68-116.8m / min) and the lifting speed of the frame (1.36-13.6m / min), to ensure compliance with the equipment operation standards; S4 Post-change acceptance and data update: S401 Post-change acceptance: After the slot changing is completed, the roll gap value of the new rolling slot and the guide alignment condition (the deviation between the guide center line and the rolling line ≤2mm) are detected, and the trial rolling confirms that the size of the rolled piece is qualified (such as the size deviation of Φ32mm rod ≤±0.3mm); After the roll changing is completed, the assembly quality of the rolling mill is checked, such as the roll shifting value controlled below 0.03mm and the roll misalignment ≤2mm, to ensure normal operation of the equipment; S402 Data update and feedback: The system updates the cumulative rolling tonnage of the rack rolling slot to 0, records the roll changing and slot changing time, operator, and roll number information, and forms a roll changing and slot changing file; The downtime of this roll changing and slot changing and the post-change equipment operation status are analyzed, and the data is fed back to the plan optimization module to continuously optimize the subsequent scheduling plan; S5 Intelligent management of rolling mill: S501 Roll processing and acceptance: The system issues a processing task to the roll processing workshop according to the roll changing plan, specifies the hole type parameters, roll neck and roll body diameter requirements (such as roll neck diameter error ≤0.1mm), and after processing is completed, the acceptance information is entered by scanning the code (such as the turning and milling acceptance record), the qualified roll is put into storage and marked as available; S502 Roll life management: The number of uses, cumulative rolling tonnage, and repair frequency information of each roll are recorded. When the roll diameter is less than the minimum use diameter (such as the minimum use diameter of a certain specification rolling mill is 700mm) or there is an irreparable crack, it is automatically determined as scrap, a scrap instruction is generated and a red paint mark is marked; Further, the application accurately controls the roll changing and groove changing time, guarantees product quality, automatically determines the replacement requirement by real-time collection of rolling groove rolling tonnage (such as rough rolling 1-6 stands allow rolling tonnage deviation + 2000 tons, finishing rolling 17-20 stands + 500 tons) and surface state data, combined with preset standards, avoids rolling piece surface defects (such as nodulation, wrong tool) caused by excessive wear of rolling groove, ensures that the end of the finished product is straight and burr-free, and the size accuracy meets the requirements, at the same time, strictly controls the roll gap error (±0.5mm) and the guide clearance (rough rolling ≤15mm, finishing rolling ≤5mm) during groove changing, ensures the rolling stability and reduces the size fluctuation; Further, the application optimizes production scheduling, improves operation efficiency, combines rolling rhythm (such as 150 billets per 40-50 seconds), coordinates roll changing and groove changing plan with production gap and maintenance time, reduces non-production downtime, prepares qualified rolls in advance through intelligent scheduling of roll spare parts and accurately sends them to the roll changing position, shortens the roll changing and groove changing operation time, and improves the effective operation rate of rolling mill; Further, the application standardizes operation and whole-process tracing, reduces management cost, clearly defines roll changing and groove changing steps (such as horizontal mill stand moving out, vertical mill lifting) and parameters (such as roll changing trolley walking speed 11.68-116.8m / min), standardizes operation process, reduces human error, establishes roll whole life cycle file, records processing acceptance, use frequency, scrap reason information, realizes accurate management of rolls, avoids unqualified rolls online, reduces equipment failure risk and spare parts waste; Further, the application data-driven continuous optimization improves process stability, records rolling data (such as rolling piece size, equipment operating parameters) after roll changing and groove changing, analyzes the influence of roll changing and groove changing on production, continuously optimizes roll changing and groove changing plan and parameter setting (such as rolling groove rolling tonnage quota, guide installation standard), forms a closed-loop improvement mechanism, and guarantees the stability and consistency of long-term production.
[0021] Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, the scope of the application is defined by the appended claims and their equivalents.
Claims
1. A bar rolling roll changing and groove changing intelligent scheduling process, comprising S1 data collection and analysis before roll changing and groove changing, S2 roll changing and groove changing plan generation and optimization, S3 roll changing and groove changing execution and monitoring, S4 post-changing acceptance and data updating, and S5 intelligent roll management, characterized in that: The S101 real-time data acquisition and the S102 data analysis and determination are comprised; The S2 roll changing and groove changing plan generation and optimization comprises S201 preliminary plan generation and S202 plan optimization; The S3 roll changing and groove changing execution and monitoring comprises S301 groove changing operation and S302 roll changing operation; The S4 post-changing acceptance and data updating comprises S401 post-changing acceptance and S402 data updating and feedback; The S5 roll management intelligentization comprises S501 roll processing and acceptance and S502 roll life management.
2. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: The S101 real-time data acquisition comprises: Through sensors and control systems, the rolling tonnage of each stand rolling groove is collected in real time, and the cumulative rolling tonnage of the current rolling groove of each stand is recorded, for example, the cumulative rolling tonnage of the current rough rolling 1-6 stands is 12000 tons, and the cumulative rolling tonnage of the current 7-12 stands is 8000 tons; The surface state information of the rolling groove is collected, and the image recognition technology is used to detect whether the rolling groove has meat loss, abnormal excessive wear, crack defects, and the wear degree is quantified as 0-10 levels, and 8 levels and above are determined as needing to be replaced; The rolling parameters of the rolling mill are recorded, such as rolling speed (0.112-18m / s) and rolling force, and the stability of the equipment operation is analyzed.
3. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: The S102 data analysis and determination comprises: The system compares the current cumulative rolling tonnage with the preset rolling tonnage quota of each stand groove (referring to the rolling tonnage standard of different specifications of bar, for example, the maximum rolling tonnage of rough rolling 1 stand of Φ32-Φ38 specification is 15000 tons, and the allowable deviation is +2000 tons), calculates the remaining rolling tonnage and the estimated groove changing time; Combined with the rolling groove surface state detection results and the rolling parameter abnormal conditions (such as size fluctuation caused by rolling groove problems), whether the roll or groove needs to be replaced is comprehensively determined, and roll changing and groove changing warning information is generated.
4. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: The S201 preliminary plan generation comprises: According to the warning information, the system prioritizes the replacement of rolling grooves that have reached the rolling tonnage quota and surface defects that have exceeded the standard, and preliminarily determines the stands, time and required roll spare part model for roll changing and groove changing; Considering the rolling plan arrangement, such as changing the variety and specification, the roll changing and groove changing work of the related stands is planned synchronously to avoid repeated downtime.
5. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: The S202 plan optimization comprises: Based on the production rhythm (such as 150 billets per 40-50 seconds rolling rhythm), the roll changing and groove changing time is optimized, the roll changing and groove changing is arranged in the gap of no steel on the rolling line or the planned maintenance time, the non-production downtime is reduced, the target is to control the single groove changing downtime within 5 minutes and the roll changing downtime within 30 minutes; The roll spare part scheduling is optimized, and according to the roll changing plan, the required rolls (which have been processed and accepted) are transported to the roll changing trolley waiting position in advance to ensure that the spare parts are in place when the roll is changed.
6. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: The S301 groove changing operation comprises: The system sends a groove changing instruction, and after the operator receives the instruction, the "on-site / centralized" key of the on-site operation box is switched to the "on-site" file, and the groove changing is performed according to the preset program: the cooling water is turned off → the groove changing rack is selected → the rack locking is loosened → the rack is moved out → the rolling groove is polished → the roll gap is adjusted (according to the standard setting, the error is ±0.5mm) → the new rolling groove guide is installed (the gap between the guide and the rolling groove is not greater than 15mm for the rough rolling mill and not greater than 10mm for the medium rolling mill) → the rack is moved in and locked → the cooling water is turned on; The system monitors the groove changing process in real time, and confirms whether each step is in place through sensors, such as whether the rack locking state and the roll gap value meet the requirements; S302 roll changing operation: Horizontal rolling mill roll changing: the system controls the roll changing trolley to move to the specified rack, and completes the rack locking loosening according to the program → the rack is moved out → the new rack is replaced (the sliding base is cleaned and oiled) → the rack is moved in → locked → the cooling water and hydraulic pipeline operations are connected, and the bracket pin state and the shaft butt joint accuracy are monitored in real time during the process; Vertical rolling mill roll changing: similar to the horizontal rolling mill process, the key is to monitor the rack lifting position (such as the alignment accuracy when lowering to the roll changing trolley, with an error of ≤5mm) and the safety pin installation.
7. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 6, characterized in that: During the roll changing process of the S302 roll changing operation, the system records various parameters, such as the roll changing trolley moving speed (11.68-116.8m / min) and the rack lifting speed (1.36-13.6m / min), to ensure that they meet the equipment operation standards.
8. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: S401 post-changing acceptance: After the groove changing is completed, the roll gap value and the guide centering condition of the new rolling groove (the deviation between the guide center line and the rolling line is ≤2mm) are detected, and the rolling piece size is confirmed to be qualified (such as the Φ32mm rod size deviation is ≤±0.3mm) through trial rolling; After the roll changing is completed, the rolling mill assembly quality is checked, such as the roll shifting value is controlled to be below 0.03mm and the roll misalignment is ≤2mm, to ensure that the equipment operates normally; S402 data updating and feedback: The system updates the cumulative rolling tonnage of the rack rolling groove to 0, records the roll changing and groove changing time, the operator, and the roll number information, and forms the roll changing and groove changing file; The downtime of this roll changing and groove changing and the post-changing equipment operation state are analyzed, and the data is fed back to the plan optimization module to continuously optimize the subsequent scheduling plan.
9. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: S501 roll processing and acceptance: The system issues a processing task to the roll processing workshop according to the roll changing plan, and clearly specifies the groove parameters, roll neck and roll body diameter requirements (such as roll neck diameter error ≤0.1mm), and after the processing is completed, the acceptance information (such as lathe milling acceptance record) is input through code scanning, and the qualified roll is put into storage and marked as available.
10. The intelligent scheduling process for roll change and groove change of bar rolling according to claim 1, characterized in that: S502 roll life management: The use frequency, cumulative rolling tonnage, and repair frequency information of each roll are recorded, and when the roll diameter is less than the minimum use diameter or there is an unrepairable crack, it is automatically determined to be scrapped, a scrap instruction is generated, and a red paint mark is marked.