Foam Insulation Panel Contouring via Roller Dies
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Solution Overview
Problem
The fabrication of foam insulation panels for aircraft is challenging due to the need for complex contouring matching the aircraft's sidewall trim panels, which requires skilled craftsmen and generates dust, and existing methods are time-consuming and weight-additive.
Innovation Solution
A method and apparatus using rotatable roller dies and a cutter to compress and translate a foam block, forming panel features that conform to aircraft sidewall assembly features, eliminating the need for manual shaping and reducing dust generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual tools are used to contour foam insulation panels, then skilled craftsmen can shape complex contours matching sidewall trim panels, but the process generates dust and requires skilled labor which increases time and cost
Solution Approach 1:
The patent replaces manual mechanical contouring tools with a automated contouring system that uses a contoured tool guided by a template to shape the foam insulation panel. This substitution eliminates dust generation associated with manual tooling while maintaining precise contour matching capability through the template-guided process
Solution Approach 2:
The patent employs a template that replicates the exact contour of the sidewall trim panel. This template serves as a copy of the target surface geometry, allowing the contouring tool to reproduce the precise shape without requiring skilled craftsmanship, thereby eliminating dust-generating manual operations while maintaining manufacturing precision
2Weight of moving object
If self-supporting foam insulation panels are used instead of bats or bags, then additional brackets and support members are eliminated reducing weight, but the panels are difficult to fabricate due to complex contours
Solution Approach 1:
The patent applies contouring to the foam insulation panel before installation, using a template-guided system to pre-form the complex contours that will match the sidewall trim panel. This preliminary action creates the self-supporting geometry needed to eliminate brackets and support members, reducing aircraft weight while making fabrication easier through automation
Solution Approach 2:
The patent replaces difficult manual contouring operations with an automated template-guided contouring system. This substitution simplifies the fabrication process by eliminating the need for skilled craftsmen to manually shape complex contours, thereby improving ease of manufacture while maintaining the weight-saving benefits of self-supporting panels
3Productivity
If automated roller dies are used to form foam insulation panels, then fabrication time is reduced and precision is improved, but complex die configurations are required
Solution Approach 1:
The patent uses a template that copies the exact contour of the sidewall trim panel to guide the contouring process. This template serves as a simple reference geometry that simplifies the die configuration compared to creating complex contoured dies, while still enabling automated high-speed fabrication with improved precision
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
Automates the formation of foam insulation panels with precise and repeatable features, reducing fabrication time and weight, while minimizing dust and the need for additional support brackets.
Implementation Method 1
compressing opposed first and second surfaces of the foam insulation block in a first direction
Implementation Method 2
cutting through the foam insulation block in a second direction substantially perpendicular to the first direction to separate the foam insulation block into an excess layer and the foam insulation panel
Data Source
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AI summary
Methods (500) and apparatus (100) for manufacturing a foam insulation panel (36) to include a panel feature (54, 58, 62, 66) conforming to a first feature (50, 56, 60, 64) of an aircraft sidewall assembly include compressing opposed first and second surfaces of a foam block (109), advancing a cutter (106) transversely through the foam block to separate the foam block into an excess layer (122) and the foam insulation panel (109), and translating the foam block (109) by an offset distance determined from the aircraft sidewall assembly first feature (50, 56, 60, 64) to form the panel feature (54, 58, 62, 66).