Straightening Roller Bending Control Under Stress Limits
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Solution Overview
Problem
Existing roller straightening machines require time-consuming manual adjustments to correct planarity errors, and these adjustments can lead to inadmissibly high stress states in the rollers, potentially causing damage.
Innovation Solution
A method and apparatus where supporting roller devices adjust the straightening roller's bending by controlling actuating devices with a control system that sets limiting stress values, automatically adjusting the rollers to maintain these values within safe limits, reducing the need for manual intervention and minimizing stress on the rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment of supporting roller devices is performed to correct planarity errors, then straightening precision is improved, but adjustment time increases and risk of roller damage increases
Solution Approach 1:
The control system automatically monitors stress values in straightening rollers and independently adjusts supporting roller devices to maintain stress within limiting values, enabling the system to self-correct without manual intervention and reducing adjustment time while maintaining precision
Solution Approach 2:
The system continuously monitors stress values in straightening rollers and uses this feedback to automatically adjust supporting roller devices, creating a closed-loop control system that maintains optimal straightening precision without manual intervention
2Manufacturing precision
If manual adjustment of supporting roller devices is performed to correct planarity errors, then straightening precision is improved, but roller damage risk increases
Solution Approach 1:
The control system continuously monitors stress values in straightening rollers and uses this feedback to automatically adjust supporting roller devices, creating a closed-loop control system that maintains optimal straightening precision while preventing roller damage through real-time stress monitoring
Solution Approach 2:
The system proactively prevents roller damage by continuously monitoring stress values and automatically adjusting supporting roller devices before stress levels reach dangerous thresholds, counteracting potential damage before it occurs
3Loss of time
If automatic adjustment of supporting roller devices is implemented, then adjustment time is reduced, but system complexity increases
Solution Approach 1:
The system replaces manual mechanical adjustment with automated control systems that monitor stress values and adjust supporting roller devices programmatically, reducing adjustment time while managing complexity through software-based control
Solution Approach 2:
The control system automatically monitors stress values and independently adjusts supporting roller devices without requiring external intervention, reducing the need for complex manual control interfaces and simplifying operation
Data Source
AI summary
In a method for setting bending of at least one straightening roller in a roller straightening machine, the straightening roller is supported by a plurality of supporting roller devices arranged beside one another in the axial direction, wherein each supporting roller device can be adjusted by an actuating device such that stresses are produced in the straightening roller. To control the actuating device, a control system is provided, by which the adjustment of the supporting roller device can be set manually. Limiting values (vMA, vMI) with respect to the stresses produced in the straightening roller are stored in the control system. In the event of adjustment of one of the supporting roller devices, maxima (MA) and minima (MI) of the stresses produced in the straightening roller are calculated and it is checked whether the maxima (MA) and minima (MI) lie within the limiting values (vMA, vMI).