Flexible Material Rolling Test Control for Tilt-Free Tension
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Solution Overview
Problem
During rolling tests of flexible materials, the material tends to tilt between the sliding and rolling units, leading to inconsistent tensile force application and inaccurate durability evaluation.
Innovation Solution
A rolling test device comprising a rolling unit, sliding unit, lifting unit, and control unit that adjusts the inclination of the flexible material by controlling the operations of these units based on input conditions, ensuring consistent tensile force application and preventing tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the flexible material is wound around the rolling unit, then the rolling test can be performed, but the material tilts and the tensile force becomes inconsistent
Solution Approach 1:
The patent applies the dynamics principle by making the rolling unit movable in the vertical direction through the lifting unit. The rolling unit can dynamically adjust its position to maintain the flexible material in a horizontal state during winding, preventing tilting and ensuring consistent tensile force application throughout the rolling test.
Solution Approach 2:
The patent implements feedback control through the control unit that monitors the state of the flexible material and adjusts the rolling unit's vertical position accordingly. This feedback mechanism ensures the material remains properly oriented and the tensile force remains consistent during the rolling operation.
2Quantity of substance
If the rolling unit diameter increases during winding, then more material can be wound, but the material tilt increases and test accuracy decreases
Solution Approach 1:
The lifting unit enables the rolling unit to dynamically adjust its vertical position as the diameter increases during winding. This compensation prevents the material from tilting due to the increasing rolling unit diameter, maintaining test accuracy throughout the entire winding process.
3Manufacturing precision
If the flexible material is held firmly to prevent tilting, then tensile force consistency improves, but the device complexity increases
Solution Approach 1:
Rather than using complex fixed constraints to prevent tilting, the patent employs a dynamic lifting mechanism that automatically adjusts the rolling unit's position. This dynamic approach simplifies the overall device structure while effectively preventing material tilt and ensuring consistent tensile force application.
Data Source
AI summary
A rolling test device for flexible materials includes a rolling unit composed of a winding roller that grips a first side of a flexible material, and a winding drive part that rotates the winding roller forwards and backwards so that the flexible material is wound on the winding roller or the flexible material is unwound from the winding roller, a sliding unit that grips a second side of the flexible material, is spaced apart from the winding roller, and slidably moves the flexible material according to rotation of the winding roller, a lifting unit that moves the rolling unit up and down, and a control unit that controls operations of the rolling unit, the sliding unit, and the lifting unit according to the rotation of the winding roller so that an inclination of the flexible material is adjusted between the rolling unit and the sliding unit.