Bar rolling transportation and adjustable limiting integrated control method

Abstract

The invention relates to the technical field of bar rolling production, and discloses a bar rolling transportation and adjustable limiting integrated control method which comprises the steps of S1, system initialization and parameter configuration, S2, rolling transportation and dynamic limiting adjustment, S3, online size calibration and limiting cooperative control, S4, rapid loading and unloading and limiting tool resetting and S5, system linkage optimization and data closed loop. According to the method, dynamic cooperation of transportation and limiting is achieved, adaptability and stability are improved, the size and position data of the bar are fed back in real time through a sensor, a limiting assembly is driven to achieve quick response adjustment within 0.4 second, the adjustment precision reaches + / -0.3 mm, and it is ensured that the adaptive gap between the limiting distance and the actual size of the bar is stabilized to be 1-3 mm; and in cooperation with roller way segmented speed regulation (the speed of an inlet acceleration section is 1.3-1.6 times of the initial speed, and the speed of an outlet buffer section is reduced to 75%-85%), the bar offset is controlled to be smaller than or equal to 5 mm, the surface damage rate is reduced to be smaller than or equal to 1.5%, and the transportation continuity is improved by 40% or above.

Description

Technical Field

[0001] This invention relates to the field of bar rolling production technology, specifically to an integrated control method for bar rolling transportation and adjustable limit positioning. Background Technology

[0002] In the bar rolling production field, continuous transportation, adaptability of positioning devices, dimensional accuracy, and loading / unloading efficiency are core factors determining product quality and production efficiency. In traditional bar rolling production processes, transportation, positioning, calibration, and loading / unloading often operate independently, resulting in numerous technical challenges. Lack of coordination between transport and limiting devices: Traditional transport rollers and limiting devices lack a dynamic linkage mechanism. The matching accuracy between roller speed and rolling rhythm is low (speed difference often exceeds ±0.8m / min). Moreover, the limiting distance is mostly a fixed value and cannot be dynamically adjusted according to the real-time size of the bar. This leads to easy deviation, jamming or surface scratches during bar transport. The deviation of a single bar can reach 8-15mm, and the surface damage rate is as high as 12%-20%.

[0003] Dimensional calibration is disconnected from the production process: Traditional dimensional inspection often uses offline sampling or single-point static inspection, which has a low inspection frequency (once every 5-10 minutes) and insufficient accuracy (outer diameter error of ±0.05mm or more). Moreover, the calibration process requires interruption of transportation, and a single calibration takes 3-5 minutes, resulting in a dimensional pass rate of only about 85% and a raw material loss rate of over 10%.

[0004] Insufficient loading and unloading efficiency and tooling maintenance: Traditional loading and unloading relies on manual operation or simple mechanical assistance. The loading and unloading of a single bar takes more than 30 seconds. Furthermore, there is a lack of standardized procedures for cleaning and calibrating tooling. U-shaped grooves, limit components, etc. are prone to leaving debris. After long-term use, the spacing deviation exceeds ±2mm, affecting the accuracy of subsequent transportation. Equipment maintenance costs account for 15%-20%.

[0005] Isolated system data and lagging optimization: Data from systems such as transportation, limiters, and calibration are not shared, and there is a lack of full-process data correlation analysis. When dimensional deviations or transportation anomalies occur, it is difficult to trace the root cause. The recurrence rate of similar problems exceeds 50%, which restricts the improvement of production line collaboration efficiency. Summary of the Invention

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an integrated control method for bar rolling, transportation, and adjustable limiters, which has advantages such as dynamic coordination between transportation and limiters, and solves the problem of lack of coordination between transportation and limiters.

[0007] (II) Technical Solution To achieve the aforementioned goal of dynamic coordination between transportation and limiters, this invention provides the following technical solution: an integrated control method for bar rolling transportation and adjustable limiters, comprising S1 system initialization and parameter configuration, S2 rolling transportation and dynamic limiter adjustment, S3 online dimensional calibration and limiter coordination control, S4 rapid loading and unloading and limiter tooling reset, and S5 system linkage optimization and data closed loop. The S1 system initialization and parameter configuration includes S101 hardware layout design and S102 core parameter preset. Among them, S2 rolling transportation and dynamic limit adjustment includes S201 real-time monitoring of transportation status and S202 dynamic adjustment of limit distance; Among them, S3 online size calibration and limit coordinated control includes S301 multi-dimensional size detection and S302 calibration and limit linkage processing; Among them, S4 quick loading and unloading and limit tooling reset includes S401 fixed length loading and unloading control and S402 tooling cleaning and calibration; Among them, the S5 system linkage optimization and data closed loop includes S501 multi-system data sharing and S502 intelligent optimization feedback.

[0008] Preferably, the S101 hardware layout design is as follows: A continuous conveyor roller table and an adjustable limit system are arranged along the rolling direction. The total length of the roller table is set to 35-55 meters, and the distance between adjacent roller tables is precisely controlled at 0.6-1.2 meters to ensure smooth transition of the bar stock. Adjustable limit components are symmetrically arranged on both sides of the roller table. The initial spacing of the limit components is preset to "diameter + 3-6mm" based on the reference diameter of the bar stock. Each set of limit components is equipped with an independent drive module and a buffer structure.

[0009] Preferably, the core parameters of S102 are preset as follows: Establish a database corresponding to bar specifications (diameter 12-60mm, length 4-15m) and transportation parameters: the initial transportation speed should match the rolling speed (usually 8-18m / min), and the speed difference should be controlled within ±0.4m / min; set dimensional calibration thresholds (outer diameter deviation ±0.12mm, wall thickness deviation ±0.22mm); preset limit adjustment response time ≤0.4 seconds, loading and unloading unlocking time ≤2.5 seconds.

[0010] Preferably, the S201 real-time monitoring of transportation status includes: Infrared beam sensors and vision recognition modules are installed at intervals of 2.5-4.5 meters above the roller conveyor to collect data on the position, spacing, and transport posture of the bars in real time. When the spacing between bars exceeds the set value by 1.4 times, or when jamming or offset occurs by more than 5 mm, the system immediately issues a graded warning: for minor abnormalities (single bar offset), the speed of the subsequent roller conveyor is automatically reduced by 8%-15%; for serious abnormalities (multiple bars piled up), an emergency stop is triggered and an alarm message is pushed.

[0011] Preferably, the S202 limiting distance is dynamically adjusted: Based on the real-time size and position data of the bar material fed back by sensors, the spacing of the limit components is dynamically adjusted by the drive module (motor-gear-tooth plate transmission structure): when the diameter deviation of the bar material is ≤±0.5mm, the spacing adjustment range is 1.2 times the deviation value; when the diameter deviation is >±0.5mm, a step adjustment is initiated, with each adjustment controlled at 0.8-2mm, and the adjustment accuracy reaching ±0.3mm, ensuring that the matching gap between the limit spacing and the actual size of the bar material is stable at 1-3mm.

[0012] Preferably, the S301 multi-dimensional dimension detection: Three sets of non-contact detection units (arranged at 3-meter intervals) are set in the middle section of the roller conveyor. Each set includes a laser profilometer and an ultrasonic detector: the laser profilometer detects the outer diameter of the bar at a sampling frequency of 120Hz with an accuracy of ±0.02mm; the ultrasonic detector detects the wall thickness every 1.5 seconds with an accuracy controlled within ±0.1mm; and the bar straightness deviation is recorded simultaneously (detected every 2 meters with an allowable deviation ≤0.4mm / m).

[0013] Preferably, the S302 calibration and limit linkage processing is as follows: When a dimensional deviation exceeding a threshold is detected, the system initiates coordinated control: When the outer diameter deviation is greater than ±0.12mm, a rolling force adjustment command is sent to the rolling mill (adjustment range 6-12kN), and the spacing of the limit components is simultaneously corrected (the correction amount is 1.1 times the deviation value). When the wall thickness deviation is > ±0.22mm, adjust the mill roll gap parameters (adjustment accuracy ±0.04mm) and simultaneously optimize the buffer pressure of the limit component (pressure range 0.25-0.45MPa). The transportation system remained in continuous operation without any downtime or interruption during the calibration process.

[0014] Preferably, the S401 fixed-length loading and unloading control: After the bars are transported to the loading and unloading station, the system automatically matches the specified length (error ≤ ±1.5mm): Unlocking phase: The pneumatic device drives the elastic latch of the limit component to open rapidly from the initial angle (35°-50°), with an unlocking time of ≤2.5 seconds; Simultaneously, the hydraulic lifting mechanism on the roller conveyor side is activated to partially lift the bar by 6-12mm, so that the gap between the bar and the limit component is ≥2.5mm; During the hoisting phase: a "V-shaped lifting (angle 50°-65°) + electromagnetic assistance" hook is used, with a lifting contact area ≥ 1 / 3 of the bar's circumference, an electromagnetic adsorption force of 1.3-1.6 times the bar's weight, a lifting speed controlled at 0.4-0.8 m / s, and a translational swing amplitude ≤ ±4°.

[0015] Preferably, the S402 tooling is cleaned and calibrated: After unloading: Cleaning: Use 0.3-0.5MPa high-pressure airflow to blow away the surface of the limit component, with a blowing time of ≥8 seconds for each station, to remove residual debris; Calibration: Use a laser rangefinder to check the limit distance and parallelism. If the deviation exceeds ±0.8mm, reset it by adjusting the bottom bolt (adjustment accuracy 0.15mm); check the elastic buckle tension (test force value 0.6-1.2kN). Replace the buffer when the tension deviation exceeds ±8%.

[0016] Preferably, the S501 multi-system data sharing: By integrating transport speed, limit adjustment amount, size inspection data, and loading and unloading parameters into the factory's MES system, real-time data interaction with the rolling mill control and quality traceability system is achieved, establishing a data association model for the entire process of "rolling-transportation-limiting-calibration". S502 Intelligent Optimization Feedback: Based on historical data analysis, when a bar stock of a certain specification exhibits the same dimensional deviation or limit adjustment abnormality three times consecutively, the system automatically generates optimization suggestions: Transportation parameter optimization: such as adjusting the speed of roller conveyor segments (1.3-1.6 times the initial speed in the inlet acceleration section, and reduced speed to 75%-85% in the outlet buffer section); Process parameter optimization: such as suggesting adjustments to the mill preheating temperature or rolling rhythm; Tooling maintenance tips: such as wear warnings for limit components or calibration reminders for testing equipment, to continuously improve production line collaboration efficiency.

[0017] (III) Beneficial Effects Compared with the prior art, the present invention provides an integrated control method for bar rolling, transportation, and adjustable limit, which has the following beneficial effects: 1. This integrated control method for bar rolling, transportation, and adjustable limit switches achieves dynamic coordination between transportation and limit switching, improving adaptability and stability. Through real-time feedback of bar size and position data from sensors, the limit switch components achieve rapid response and adjustment within 0.4 seconds, with an adjustment accuracy of ±0.3mm, ensuring that the limit spacing and the actual bar size are stably matched within 1-3mm. Combined with segmented speed regulation of the roller conveyor (1.3-1.6 times the initial speed in the inlet acceleration section and reduced speed to 75%-85% in the outlet buffer section), bar offset is controlled to ≤5mm, surface damage rate is reduced to ≤1.5%, and transportation continuity is improved by more than 40%.

[0018] 2. This integrated control method for bar rolling, transportation, and adjustable limit positions enables online calibration and production linkage, improving dimensional accuracy and efficiency. It employs three sets of non-contact detection units (120Hz laser profilometer sampling and 1.5-second / test ultrasonic detector) to achieve dynamic dimensional monitoring throughout the entire length, achieving an outer diameter accuracy of ±0.02mm and a wall thickness accuracy of ±0.1mm. The calibration process requires no machine downtime; real-time adjustment of rolling force (6-12kN) and roll gap (±0.04mm) increases the dimensional pass rate to over 99% and reduces raw material loss to ≤5%, a reduction of over 50% compared to traditional technologies.

[0019] 3. This integrated control method for bar rolling transportation and adjustable limit switches enables rapid loading and unloading and standardized tooling, improving efficiency and maintainability. Through the coordinated operation of pneumatic elastic locks for rapid unlocking (≤2.5 seconds) and hydraulic jacking (6-12mm), the loading and unloading time for a single bar is reduced to ≤10 seconds, increasing efficiency by more than 3 times. Standardized cleaning (0.3-0.5MPa high-pressure airflow purging ≥8 seconds / station) and calibration procedures (adjusting bolt accuracy 0.15mm) ensure long-term tooling stability, with spacing deviation controlled within ±0.8mm, reducing equipment maintenance costs by 12%-18%.

[0020] 4. This integrated control method for bar rolling, transportation, and adjustable limiters achieves data closed-loop and intelligent optimization, reducing costs and recurring issues. Through the MES system, it realizes data sharing across the entire process of "rolling-transportation-limiting-calibration," establishes a historical database correlation analysis model, and automatically pushes optimization suggestions when a bar of a certain specification experiences the same problem three times consecutively. The recurrence rate of similar dimensional deviations or transportation anomalies is reduced by more than 60%; production line collaboration efficiency is improved by 35%, overall process efficiency is improved by 50%, and the length error is strictly controlled within ±1.5mm, reducing secondary correction steps for subsequent processing and lowering processing costs by 15%-20%.

[0021] 5. The integrated control method for bar rolling transportation and adjustable limit positions has the following technical innovations: Dynamic collaborative control: breaking through the traditional independent operation mode of transportation and limit positions, it realizes real-time linkage adjustment of dimensional deviation and limit distance, shortens the adjustment response time to within 0.4 seconds, and improves the adaptation accuracy by 40%; Integrated process design: Integrating the entire process of rolling and transportation, online calibration, dynamic limiting and rapid loading and unloading, the efficiency of single bar processing is improved by 50%, and the length error is controlled within ±1.5mm; Parameterized precision control: Through multi-dimensional parameter optimization (such as limit adjustment accuracy ±0.3mm, lifting height 6-12mm), the surface damage rate of the bar stock is reduced to ≤1.5%, and equipment maintenance costs are reduced by 12%-18%. Data-driven optimization: Based on the closed-loop data of the entire process, the process parameters are optimized through self-iteration, reducing the recurrence rate of similar size problems by more than 60%. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0023] This solution provides a technical approach, specifically, an integrated control method for bar rolling, transportation, and adjustable limit positioning, comprising the following methods: S1 System Initialization and Parameter Configuration; S101 Hardware Layout Design: A continuous conveyor roller table and an adjustable limit system are arranged along the rolling direction. The total length of the roller table is set to 35-55 meters, and the distance between adjacent roller tables is precisely controlled at 0.6-1.2 meters to ensure smooth transition of the bar stock. Adjustable limit components are symmetrically arranged on both sides of the roller table. The initial distance between the limit components is preset to "diameter + 3-6mm" based on the reference diameter of the bar stock. Each set of limit components is equipped with an independent drive module and a buffer structure. S102 core parameter presets: Establish a database corresponding to bar specifications (diameter 12-60mm, length 4-15m) and transportation parameters: the initial transportation speed should match the rolling speed (typically 8-18m / min), with the speed difference controlled within ±0.4m / min; set dimensional calibration thresholds (outer diameter deviation ±0.12mm, wall thickness deviation ±0.22mm); preset limit adjustment response time ≤0.4 seconds, loading / unloading unlocking time ≤2.5 seconds; S2 Rolling transport and dynamic limit adjustment; S201 Transportation Status Real-time Monitoring: Infrared beam sensors and vision recognition modules are installed at intervals of 2.5-4.5 meters above the roller conveyor to collect data on the position, spacing, and transport posture of the bars in real time. When the spacing between bars exceeds 1.4 times the set value, or when jamming or offset occurs, the system immediately issues a graded warning: minor abnormalities (single bar offset) automatically reduce the speed of the subsequent roller conveyor by 8%-15%; severe abnormalities (multiple bars piled up) trigger an emergency stop and push an alarm message. S202 Limit Spacing Dynamic Adjustment: Based on the real-time size and position data of the bar material fed back by sensors, the spacing of the limit components is dynamically adjusted through the drive module (motor-gear-tooth plate transmission structure): when the diameter deviation of the bar material is ≤±0.5mm, the spacing adjustment range is 1.2 times the deviation value; when the diameter deviation is >±0.5mm, step adjustment is started, and the adjustment amount is controlled within 0.8-2mm each time, with an adjustment accuracy of ±0.3mm, ensuring that the matching gap between the limit spacing and the actual size of the bar material is stable at 1-3mm. S3 Online Size Calibration and Limit Co-control; S301 Multi-dimensional Dimensional Inspection: Three sets of non-contact detection units (spaced 3 meters apart) are set up in the middle section of the roller conveyor. Each set includes a laser profilometer and an ultrasonic detector: the laser profilometer detects the outer diameter of the bar at a sampling frequency of 120Hz with an accuracy of ±0.02mm; the ultrasonic detector detects the wall thickness every 1.5 seconds with an accuracy controlled within ±0.1mm; and the bar straightness deviation is recorded simultaneously (detected every 2 meters with an allowable deviation ≤0.4mm / m). S302 Calibration and Limit Linkage Processing: When a dimensional deviation exceeding a threshold is detected, the system initiates coordinated control: When the outer diameter deviation is greater than ±0.12mm, a rolling force adjustment command is sent to the rolling mill (adjustment range 6-12kN), and the spacing of the limit components is simultaneously corrected (the correction amount is 1.1 times the deviation value). When the wall thickness deviation is > ±0.22mm, adjust the mill roll gap parameters (adjustment accuracy ±0.04mm) and simultaneously optimize the buffer pressure of the limit component (pressure range 0.25-0.45MPa). The transportation system remained in continuous operation without any downtime or interruption during the calibration process; S4 Quick loading / unloading and limit fixture reset; S401 Fixed-length loading and unloading control: After the bars are transported to the loading and unloading station, the system automatically matches the specified length (error ≤ ±1.5mm): Unlocking phase: The pneumatic device drives the elastic latch of the limit component to open rapidly from the initial angle (35°-50°), with an unlocking time of ≤2.5 seconds; Simultaneously, the hydraulic lifting mechanism on the roller conveyor side is activated to partially lift the bar by 6-12mm, so that the gap between the bar and the limit component is ≥2.5mm; Lifting stage: Use "V-shaped lifting (angle 50°-65°) + electromagnetic assistance" hook, the lifting contact area is ≥ 1 / 3 of the bar circumference, the electromagnetic adsorption force is 1.3-1.6 times the weight of the bar, the lifting speed is controlled at 0.4-0.8m / s, and the translational swing amplitude is ≤ ±4°; S402 Tooling Cleaning and Calibration: After unloading: Cleaning: Use 0.3-0.5MPa high-pressure airflow to blow away the surface of the limit component, with a blowing time of ≥8 seconds for each station, to remove residual debris; Calibration: Use a laser rangefinder to check the limit distance and parallelism. If the deviation exceeds ±0.8mm, reset it by adjusting the bottom bolt (adjustment accuracy 0.15mm); check the elastic buckle tension (test force value 0.6-1.2kN). Replace the buffer when the tension deviation exceeds ±8%. S5 system linkage optimization and data closed loop; S501 Multi-system Data Sharing: By integrating transport speed, limit adjustment amount, size inspection data, and loading and unloading parameters into the factory's MES system, real-time data interaction with the rolling mill control and quality traceability system is achieved, establishing a data association model for the entire process of "rolling-transportation-limiting-calibration". S502 Intelligent Optimization Feedback: Based on historical data analysis, when a bar stock of a certain specification exhibits the same dimensional deviation or limit adjustment abnormality three times consecutively, the system automatically generates optimization suggestions: Transportation parameter optimization: such as adjusting the speed of roller conveyor segments (1.3-1.6 times the initial speed in the inlet acceleration section, and reduced speed to 75%-85% in the outlet buffer section); Process parameter optimization: such as suggesting adjustments to the mill preheating temperature or rolling rhythm; Tooling maintenance tips: such as wear warnings for limit components or calibration reminders for testing equipment, to continuously improve production line collaboration efficiency; Technological innovation points: Dynamic collaborative control: Breaking through the traditional independent operation mode of transportation and limit switch, it realizes real-time linkage adjustment of dimensional deviation and limit distance, shortening the adjustment response time to within 0.4 seconds and improving the adaptation accuracy by 40%; Integrated process design: Integrating the entire process of rolling and transportation, online calibration, dynamic limiting and rapid loading and unloading, the efficiency of single bar processing is improved by 50%, and the length error is controlled within ±1.5mm; Parameterized precision control: Through multi-dimensional parameter optimization (such as limit adjustment accuracy ±0.3mm, lifting height 6-12mm), the surface damage rate of the bar stock is reduced to ≤1.5%, and equipment maintenance costs are reduced by 12%-18%. Data-driven optimization: Based on the closed-loop data of the entire process, the process parameters are optimized iteratively, reducing the recurrence rate of similar size problems by more than 60%; Furthermore, this method achieves dynamic coordination between transportation and limiting, improving adaptability and stability. By using sensors to provide real-time feedback on the size and position data of the bar, the limiting components are driven to achieve rapid response and adjustment within 0.4 seconds, with an adjustment accuracy of ±0.3mm, ensuring that the matching gap between the limiting distance and the actual size of the bar is stable at 1-3mm. Combined with segmented speed regulation of the roller conveyor (1.3-1.6 times the initial speed in the inlet acceleration section and reduced speed to 75%-85% in the outlet buffer section), the bar offset is controlled to ≤5mm, the surface damage rate is reduced to ≤1.5%, and the transportation continuity is improved by more than 40%. Furthermore, this method enables online calibration and production linkage, improving dimensional accuracy and efficiency. It employs three sets of non-contact detection units (laser profilometer sampling at 120Hz and ultrasonic detector performing 1.5 seconds / test) to achieve dynamic dimensional monitoring throughout the entire length, achieving an outer diameter accuracy of ±0.02mm and a wall thickness accuracy of ±0.1mm. The calibration process requires no machine downtime; by adjusting the rolling force (6-12kN) and roll gap (±0.04mm) in real time, the dimensional pass rate is increased to over 99%, and the raw material loss rate is reduced to ≤5%, a reduction of over 50% compared to traditional technologies. Furthermore, this method achieves rapid loading and unloading and standardized tooling, improving efficiency and maintainability. Through the coordinated operation of pneumatic elastic locking for rapid unlocking (≤2.5 seconds) and hydraulic jacking (6-12mm), the loading and unloading time for a single bar is reduced to ≤10 seconds, increasing efficiency by more than 3 times. Standardized cleaning (0.3-0.5MPa high-pressure airflow purging ≥8 seconds / station) and calibration procedures (adjusting bolt accuracy to 0.15mm) ensure long-term tooling stability, with spacing deviation controlled within ±0.8mm, reducing equipment maintenance costs by 12%-18%. Furthermore, this method achieves data closure and intelligent optimization, reducing costs and recurring issues. Through the MES system, it realizes data sharing throughout the entire process of "rolling-transportation-limiting-calibration" and establishes a historical database correlation analysis model. When a bar of a certain specification experiences the same problem three times in a row, optimization suggestions are automatically pushed, reducing the recurrence rate of similar dimensional deviations or transportation anomalies by more than 60%. Production line collaboration efficiency is improved by 35%, overall process efficiency is improved by 50%, and the length error is strictly controlled within ±1.5mm, reducing secondary correction steps for subsequent processing and lowering processing costs by 15%-20%.

[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bar rolling, transporting and adjustable limiting integrated control method, comprising S1 system initialization and parameter configuration, S2 rolling, transporting and dynamic limiting adjustment, S3 online size calibration and limiting cooperative control, S4 rapid loading and unloading and limiting tool resetting, and S5 system linkage optimization and data closed loop, characterized in that: The S1 system initialization and parameter configuration includes S101 hardware layout design and S102 core parameter presetting; Among them, S2 rolling transportation and dynamic limiting adjustment includes S201 real-time monitoring of transportation state and S202 dynamic adjustment of limiting distance; Among them, S3 online size calibration and limiting cooperative control includes S301 multi-dimensional size detection and S302 calibration and limiting linkage processing; Among them, S4 quick loading and unloading and limiting tool resetting includes S401 fixed-size loading and unloading control and S402 tool cleaning and calibration; Among them, S5 system linkage optimization and data closed loop includes S501 multi-system data sharing and S502 intelligent optimization feedback.

2. The bar rolling, transporting and adjustable stop integrated control method according to claim 1, characterized in that: The S101 hardware layout design: Continuous transportation roller and adjustable limiting system are arranged along the rolling direction, the total length of the roller is set to 35-55 meters, the distance between adjacent rollers is accurately controlled to 0.6-1.2 meters, and the stable transition of the bar is ensured; adjustable limiting assemblies are symmetrically arranged on both sides of the roller, the initial distance of the limiting assembly is preset to "diameter + 3-6mm" according to the reference diameter of the bar, and each limiting assembly is provided with an independent driving module and a buffer structure.

3. The integrated control method of bar rolling, transporting and adjustable limiting according to claim 1, characterized in that: The S102 core parameter presetting: A corresponding database of bar specifications (diameter 12-60mm, length 4-15m) and transportation parameters is established: the initial transportation speed matches the rolling speed (conventional 8-18m / min), the speed difference is controlled within ±0.4m / min; the size calibration threshold (outer diameter deviation ±0.12mm, wall thickness deviation ±0.22mm) is set; the limiting adjustment response time is preset to be less than or equal to 0.4 seconds, and the loading and unloading unlocking time is less than or equal to 2.5 seconds.

4. The bar rolling, transporting and adjustable stop integrated control method according to claim 1, characterized in that: The S201 real-time monitoring of transportation state: Install infrared opposite transmission sensors and visual recognition modules on the roller at intervals of 2.5-4.5 meters, real-time collect bar position, distance and transportation posture data, when the bar distance exceeds the set value 1.4 times, or the material is stuck, the offset is greater than 5mm, the system immediately grades the warning: slight abnormality (single root offset) automatically reduces the speed of the subsequent roller by 8%-15%; serious abnormality (multiple accumulation) triggers emergency stop and pushes the alarm information.

5. The bar rolling, transporting and adjustable stop integrated control method according to claim 1, characterized in that: The S202 dynamic adjustment of limiting distance: Based on the real-time size and position data of the bar fed back by the sensor, the distance between the limiting assemblies is dynamically adjusted through the driving module (motor-gear-toothed plate transmission structure): when the diameter deviation of the bar is less than or equal to ±0.5mm, the distance adjustment range is 1.2 times the deviation value; when the diameter deviation is greater than ±0.5mm, the stepwise adjustment is started, the adjustment amount is controlled to be 0.8-2mm each time, the adjustment accuracy is ±0.3mm, and the adaptive gap between the limiting distance and the actual size of the bar is stabilized at 1-3mm.

6. The bar rolling, transporting and adjustable stop integrated control method according to claim 1, characterized in that: The S301 multi-dimensional size detection: Three groups of non-contact detection units (3 meters apart) are arranged in the middle of the roller bed, each group containing a laser profiler and an ultrasonic detector: the laser profiler detects the outer diameter of the bar at a sampling frequency of 120 Hz, with an accuracy of ±0.02 mm; the ultrasonic detector detects the wall thickness every 1.5 seconds, with an accuracy of ±0.1 mm; the straightness deviation of the bar is recorded synchronously (detected every 2 meters, with an allowable deviation of ≤0.4 mm / m).

7. The bar rolling, transporting and adjustable stop integrated control method according to claim 1, characterized in that: The S302 calibration and limit linkage processing: When the size deviation exceeds the threshold, the system starts collaborative control: When the outer diameter deviation is > ±0.12 mm, send rolling force adjustment instructions to the rolling mill (adjustment range 6-12 kN), and simultaneously correct the spacing of the limiting component (correction amount is 1.1 times the deviation value); When the wall thickness deviation is > ±0.22 mm, adjust the rolling mill roll gap parameters (adjustment accuracy ±0.04 mm) and simultaneously optimize the buffer pressure of the limiting component (pressure range 0.25-0.45 MPa); The transportation system remains continuous operation during calibration without interruption.

8. The bar rolling, transporting and adjustable stop integrated control method according to claim 1, characterized in that: The S401 cut-to-length loading and unloading control: After the bar is transported to the loading and unloading station, the system automatically matches the cut-to-length (error ≤±1.5 mm): Unlocking stage: the pneumatic device drives the elastic lock of the limiting component to quickly open from the initial angle (35°-50°) in ≤2.5 seconds; simultaneously start the roller side hydraulic lifting mechanism to locally lift the bar by 6-12 mm, making the separation gap between the bar and the limiting component ≥2.5 mm; Hoisting stage: use "V-shaped lifting (angle 50°-65°) + electromagnetic assistance" hooks, the lifting contact area is ≥1 / 3 of the circumference of the bar, the electromagnetic attraction force is 1.3-1.6 times the weight of the bar, the lifting speed is controlled at 0.4-0.8 m / s, and the swing amplitude is ≤±4°.

9. The bar rolling, transporting and adjustable stop integrated control method according to claim 1, characterized in that: The S402 tool cleaning and calibration: After unloading is completed: Cleaning: use 0.3-0.5 MPa high-pressure gas flow to blow the surface of the limiting component, each station blowing time ≥8 seconds, and remove residual debris; Calibration: detect the limiting spacing and parallelism by laser range finder, if the deviation exceeds ±0.8 mm, reset by adjusting the bottom bolts (adjustment accuracy 0.15 mm); detect the elastic lock tension (test force value 0.6-1.2 kN), replace the buffer when the tension deviation exceeds ±8%.

10. The bar rolling, transporting and adjustable stop integrated control method of claim 1, wherein: The S501 multi-system data sharing: Connect the transportation speed, limiting adjustment amount, size detection data, and loading and unloading parameters to the factory MES system, realize real-time data interaction with the rolling mill control and quality traceability system, and establish a "rolling - transportation - limiting - calibration" whole-process data correlation model; S502 intelligent optimization feedback: Through historical data analysis, when the same size deviation or limiting adjustment anomaly occurs for the same specification bar for 3 consecutive times, the system automatically generates optimization suggestions: Transportation parameter optimization: such as adjusting the roller segmented speed (entry acceleration section 1.3-1.6 times the initial speed, exit buffer section speed down to 75%-85%) Process parameter optimization: such as adjusting the mill preheating temperature or rolling rhythm; Tooling maintenance tips: such as limit component wear warning or detection equipment calibration reminder, continuous improvement of line synergy efficiency.