Flexible Unit Bending Radius Inspection System
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Solution Overview
Problem
Current methods for inspecting flexible units lack a robust mechanism for quantifying and evaluating the optical, mechanical, and electrical characteristics of bended flexible units, as they are limited by fixed roller radii and inability to bend devices into arbitrary curvatures, making it difficult to establish a comprehensive understanding of these characteristics.
Innovation Solution
A system comprising a clip unit, an observing unit, and a controlling unit that captures the lateral profile of a flexible unit, calculates its bending radius, and activates a characteristic-inspecting unit to evaluate and establish a lookup table relating characteristics to bending radii, allowing for arbitrary curvature inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed rollers of different radiuses are used to bend the flexible device, then the device can be inspected at specific curvatures, but the inspection is not thorough enough since the radiuses are fixed and the device cannot be bent into arbitrary curvatures
Solution Approach 1:
The patent replaces fixed rollers with a dynamic bending mechanism comprising a bending roller and a pressing roller that can be adjusted to achieve arbitrary bending radii. The bending roller rotates while the pressing roller applies variable pressure, enabling continuous adjustment of bending curvature rather than being limited to fixed radii. This dynamic system allows inspection at any desired curvature while maintaining manageable complexity through controlled mechanical adjustment.
Solution Approach 2:
The patent implements variable bending radius by changing the physical parameters of the bending system - specifically, the distance between the bending roller and pressing roller can be adjusted, and the pressing force can be varied. This allows the same inspection apparatus to inspect flexible devices at multiple different curvatures by simply adjusting these parameters, rather than requiring multiple fixed rollers of different radii.
2Ease of operation
If multiple fixed rollers of different radiuses are used for inspection, then specific bending states can be achieved, but the method lacks effectiveness for bending the flexible device into different bending states for practical application
Solution Approach 1:
The dynamic bending mechanism allows operators to easily adjust the bending radius by moving the pressing roller along the flexible device or adjusting the pressing force. This single dynamic system replaces multiple fixed rollers, making it easier to operate (no need to change rollers) while simultaneously increasing versatility (can achieve any bending radius within the adjustment range).
Solution Approach 2:
The bending roller and pressing roller combination serves as a universal bending mechanism that can accommodate any bending radius requirement. Instead of having specialized fixed rollers for each specific radius, this universal system can be adjusted to perform the function of any fixed roller while also enabling intermediate and arbitrary radii that fixed rollers cannot provide.
3Ease of manufacture
If the inspection apparatus uses fixed roller radii, then the apparatus can be integrated into the manufacturing process, but the performance inspection is not thorough enough for comprehensive evaluation
Solution Approach 1:
The dynamic bending mechanism maintains ease of manufacture by using a simple mechanical system with a bending roller and pressing roller that can be integrated into existing production lines. The ability to adjust the bending radius dynamically does not significantly increase manufacturing complexity, while it dramatically improves measurement precision by allowing inspection at the actual operating curvature of the flexible device rather than being constrained to fixed roller radii.
Data Source
AI summary
A method for inspecting characteristics of bended flexible unit is disclosed, which comprises steps of: (a) providing a clip unit, an observing unit, a characteristic-inspecting unit and a controlling unit; said clip unit, observing unit, and characteristic-inspecting unit are electrically connected to said controlling unit which stored a predetermined radius; (b) the clip unit clips a flexible unit and bends the same; (c) the observing unit gets the lateral profile of the flexible unit and sends it to the controlling unit which calculates the bending radius thereof accordingly; and (d) the controlling unit determines if the bending radius is the same to the predetermined one; if positive, the clip unit stops and the characteristic-inspecting unit inspects the characteristic of said flexible unit; if negative, the procedure returns to step (b).