Springback Compensation for Multi-Section Metal Sheet Roll Bending
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Solution Overview
Problem
Current springback compensation methods for roll bending metal sheets are limited to uniform cross-sections and same materials, failing to effectively handle continuous metal sheets with dissimilar materials and varying thicknesses, leading to increased processing costs due to lack of real-time compensation.
Innovation Solution
A method utilizing multiple rollers, position sensors, and a programmable logic controller to measure and compensate springback angles of metal sheets with different materials or thicknesses, allowing for on-line real-time roll bending by dividing the sheet into sections and iteratively adjusting the bending process until standard angles are achieved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional springback compensation methods are used, then uniform metal sheets can be processed, but dissimilar materials and varying thicknesses cannot be handled
Solution Approach 1:
The patent divides the continuous metal sheet into multiple sections based on material type and thickness variations. Each section is assigned a unique identifier and tracked individually through the bending process. This segmentation allows the system to apply section-specific compensation parameters rather than treating the entire sheet uniformly, thereby enabling handling of dissimilar materials and varying thicknesses while maintaining compensation accuracy.
Solution Approach 2:
The patent implements a feedback mechanism where position sensors measure the actual bending angles of each section in real-time, and this data is fed back to the programmable logic controller. The PLC then adjusts the bending parameters for each section based on the measured springback angles, enabling dynamic compensation that adapts to different materials and thicknesses while maintaining precision.
2Manufacturing precision
If multiple process systems are used for dissimilar materials, then each section can be processed, but processing cost increases
Solution Approach 1:
The patent creates a universal bending system that can handle multiple material types and thicknesses through a single integrated line. The system uses a programmable logic controller that stores and retrieves section-specific parameters, allowing one bending line to perform the work of multiple specialized lines. This multi-functionality maintains section-specific bending accuracy while eliminating the need for separate processing systems for different materials.
Solution Approach 2:
The patent implements dynamic parameter adjustment where the bending roller position, force, and speed are automatically modified in real-time based on the detected section characteristics. The system transitions from static, fixed parameters to dynamic, adaptive parameters that change continuously as different sections pass through the bending zone, enabling a single system to handle varied materials with precision.
3Productivity
If real-time compensation is implemented, then processing efficiency improves, but system complexity increases
Solution Approach 1:
The patent implements a self-service measurement system where position sensors automatically detect the springback angles of each section without requiring external intervention. The system self-regulates by using the sensor data to automatically adjust bending parameters through the PLC, eliminating the need for manual measurement and adjustment. This automation maintains high processing speed while managing system complexity through intelligent self-control.
Solution Approach 2:
The patent replaces complex mechanical measurement and adjustment mechanisms with electronic sensors and programmable logic control. Instead of using mechanical gauges and manual adjustment devices, the system uses position sensors to detect springback and electronic control to adjust bending parameters, reducing mechanical complexity while enabling real-time compensation that improves productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables rapid and cost-effective roll bending of metal sheets with different thicknesses or materials by ensuring accurate compensation, reducing processing costs and improving the efficiency of the bending process.
Implementation Method 1
springback angles of the first, second, and third sections of the bent metal sheet
Data Source
AI summary
An springback compensation method for on-line real-time metal sheet roll bending includes the steps of using multiple rollers to bend a continuous metal sheet of multiple sections having different materials or different thickness respectively; using a first position sensor to individually measure springback angles of the multiple sections of the bent metal sheet, and feeding back to a programmable logic controller; using the programmable controller to control a bending roller to compensate the multiple sections of the bent metal sheet respectively; using a second position sensor to individually measure compensated angles of the multiple sections of the bent metal sheet; and comparing a difference between the compensated angles and standard angles of the multiple sections of the bent metal sheet after compensating bending.