Articulating Die for Tessellation Folding
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Solution Overview
Problem
Conventional presses and dies are not suitable for folding tessellations due to the unique properties of folding, which involves minimal in-plane deformation and contraction in multiple directions, presenting fabrication challenges.
Innovation Solution
An articulating die with moving components and lever arms that folds sheet material into a tessellation structure by transferring force applied to the die into a resulting folding action on the material, allowing for the contraction of the material in two sheet directions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional presses and dies are used for folding tessellations, then the equipment is simple and easy to operate, but the folding action cannot be achieved due to minimal in-plane deformation and multi-directional contraction requirements
Solution Approach 1:
The die is transformed from a static conventional press tool to a dynamic articulating die with multiple movable segments connected by hinges. These segments can articulate and move independently to accommodate the complex folding geometry of tessellations, enabling the die to adapt its shape during the forming process while remaining operable with standard press equipment.
Solution Approach 2:
The die is divided into multiple separate articulating segments or tiles that can move independently relative to each other through hinge connections. This segmentation allows each portion of the die to follow the specific folding path required for different regions of the tessellation pattern, solving the adaptability problem while maintaining operational simplicity.
2Manufacturing precision
If conventional dies are used, then the device complexity is low, but the manufacturing precision required for folding tessellations cannot be achieved
Solution Approach 1:
The articulating die uses dynamic hinge mechanisms that automatically guide the movement of die segments along precise folding paths. This dynamic guidance system achieves high manufacturing precision for fold crease lines without requiring complex fixed tooling, as the hinges naturally constrain the motion to the desired geometry.
Solution Approach 2:
The hinge connections in the articulating die self-adjust and self-guide the movement of die segments during the forming process. The mechanical linkage inherently maintains the correct geometric relationships between folding lines, achieving precision without requiring complex external control systems or highly精密 fixed tooling.
3Force
If force is applied to conventional dies, then the pressing action is simple, but the force cannot be effectively transferred into folding action due to lack of articulation
Solution Approach 1:
The articulating die segments are connected through hinge joints that convert the simple pressing force from conventional presses into complex multi-directional folding motions. As the die segments articulate under applied force, the hinge mechanisms automatically resolve the force into the appropriate directional components needed for each fold, achieving effective force transfer without complex manufacturing.
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
The articulating die effectively folds sheet materials into tessellation structures with minimal in-plane deformation, enabling the production of structural cellular cores and panels with enhanced properties.
Implementation Method 1
An articulating die with moving components and lever arms that folds sheet material into a tessellation structure by transferring force applied to the die into a resulting folding action on the material
Implementation Method 2
An articulating die with moving components and lever arms that folds sheet material into a tessellation structure
Data Source
AI summary
Devices and methods for configuring an articulating die to form a material into desired tessellations are disclosed, including providing articulating lever arms affixed to geometrically shaped tiles in a predetermined configuration such that application of force to the lever arms will generate a desired pattern of peak and valley folds in the material to achieve a desired shape. The material may further be shaped by tools corresponding to desired characteristics.