Straightening Roll Tilt Control for High-Precision Plate Leveling
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Solution Overview
Problem
Existing plate straightening processes fail to dynamically adjust to specific plate defects, particularly in composite plates, leading to incomplete stress release and high-precision straightening challenges.
Innovation Solution
A dynamic straightening method involving the use of a shapemeter to draw unevenness curves, calculate barycentric coordinates, and adjust straightening roll tilt values to achieve precise plate straightening by iteratively determining and adjusting the straightening parameters based on the plate's defect characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If existing straightening processes are used, then the straightening operation can be performed, but dynamic adjustment according to specific plate defects cannot be achieved
Solution Approach 1:
The patent implements dynamic adjustment of straightening roll parameters (tilt angle, position, pressure) based on real-time plate defect characteristics. The control system continuously monitors plate shape through unevenness curves and dynamically modifies rolling parameters for each straightening cycle, transforming the static straightening process into a dynamic adaptive system that responds to actual plate conditions.
Solution Approach 2:
The patent changes physical parameters of the straightening process based on measured plate defects. Specifically, it adjusts the tilt angle of straightening rolls, their positional coordinates (x, y), and applied pressure according to the calculated barycentric coordinates and unevenness curves. This parameter adaptation enables precise targeting of different defect locations and types.
2Manufacturing precision
If conventional straightening methods are applied, then general straightening can be achieved, but high-precision straightening requirements cannot be met
Solution Approach 1:
The patent replaces complex mechanical trial-and-error straightening methods with a computational system. It uses shape measurement data, barycentric coordinate calculations, and computer-controlled roll positioning to achieve precise straightening. This substitution of mechanical intuition with mathematical modeling and automated control reduces the need for complex manual adjustment mechanisms while improving precision.
Solution Approach 2:
The patent creates a digital representation of plate defects through unevenness curves and barycentric coordinates. This virtual model serves as a copy of the actual plate geometry, allowing the control system to plan and execute straightening operations based on the digital twin rather than direct mechanical sensing, thereby improving precision without proportionally increasing physical device complexity.
Data Source
AI summary
A dynamic straightening method for a left/right tilt. The method includes: drawing an unevenness curve according to a distance from a shapemeter to a surface of a plate, where there are a plurality of unevenness curves; using a barycentric formula to obtain a first barycentric coordinate of each unevenness curve; calculating a tilt value of a straightening roll corresponding to each unevenness curve according to the first barycentric coordinate of each unevenness curve; determining an unevenness curve of a current straightening roll; adjusting the straightening roll according to the tilt value of the straightening roll corresponding to the unevenness curve, to straighten the plate; and going back to the step of determining an unevenness curve of a current straightening roll until the plate is totally straightened. Such method improves plate straightening accuracy by dynamically adjusting parameters of the straightening roll.