Sliding Apparatus for Flexible Material Durability Testing
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Solution Overview
Problem
Conventional folding test devices for flexible materials fail to perform precise folding tests due to the inability to block tensile forces, reducing the reliability of durability evaluations.
Innovation Solution
A sliding apparatus for durability evaluation of flexible materials, which includes a base unit with a folding space, a sliding unit for holding a first portion of the material, and a folding unit for rotating a second portion, allowing for in-folding and out-folding operations while changing the position of the bent portion, using a sliding motor and motion guide units to stabilize and track the material's bending.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotation plate is used to perform folding test, then the device can rotate and bend the flexible material, but tensile force cannot be blocked and the reliability of the test is reduced
Solution Approach 1:
The device is divided into separate functional modules: a sliding unit with sliding plate for holding and positioning the flexible material, and a rotation unit with rotation plate for bending operations. This segmentation allows the sliding unit to block tensile forces while the rotation unit performs pure bending, resolving the contradiction between operational capability and test reliability.
Solution Approach 2:
The sliding plate acts as an intermediary component between the fixed support and the rotation plate. It transmits and blocks tensile forces from the flexible material, preventing these forces from reaching the rotation plate during bending operations, thereby ensuring pure bending without tensile contamination.
2Device complexity
If conventional folding device is used, then the structure is simple, but precise tracking of bent portion position cannot be achieved
Solution Approach 1:
A position detection device is integrated to detect the position of the bent portion of the flexible material in real-time during folding operations. This feedback mechanism provides precise position information, enabling accurate tracking and control of the bending process while maintaining a relatively simple overall device structure.
3Reliability
If sliding unit is added to block tensile force, then test reliability is improved, but device complexity increases
Solution Approach 1:
The sliding unit and rotation unit are merged into an integrated system where the sliding plate is positioned between the fixed support and the rotation plate. This combination allows the sliding unit to perform dual functions: blocking tensile forces to improve reliability while maintaining a compact and relatively simple overall device structure through efficient spatial arrangement.
Data Source
AI summary
A sliding apparatus for durability evaluation of a flexible material includes a base unit having a folding space formed therethrough, a sliding unit which is coupled to the base unit to be slidably movable and to which one side of a flexible material to be evaluated is fixed, and a folding unit which is arranged to be apart from the sliding unit, to which the other side of the flexible material is fixed, and which rotates with respect to the sliding unit to in-fold or out-fold the flexible material in an unfolded state. The sliding unit changes the position of the bent portion formed in the flexible material as the sliding unit slidably moves on the base unit with the flexible material in an in-folded state or out-folded state.