Compression Mold Pinch-Sealed Vehicle Trim Panel Edge
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Solution Overview
Problem
Conventional methods for forming motor vehicle trim panels result in unattractive edges that are prone to separation and require additional processing steps, increasing manufacturing costs and time, while also leaving behind 'offal' that needs manual removal, posing safety risks and inefficiencies.
Innovation Solution
A compression mold with pinch-sealed edges is used to form trim panels, where the mold's design includes inclined ridges on the lower and upper halves to compress and cut the panel, creating a clean edge during the molding process and an integrated offal handling system to remove excess material simultaneously, reducing the need for secondary operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional methods are used to form trim panel edges (adding cover or folding), then edge strength is improved, but manufacturing complexity and time increase
Solution Approach 1:
The patent combines the edge sealing function with the primary molding process by integrating sealing ridges into the mold halves. This merging eliminates the need for separate edge covering or folding operations, achieving both edge strength and manufacturing simplicity simultaneously.
2Strength
If edges are folded over and sealed, then edge strength is improved, but the width of the finished edge increases, reducing cargo space utilization
Solution Approach 1:
The patent applies local sealing ridges only at the specific edge locations requiring reinforcement, rather than folding the entire edge. This localized approach provides necessary edge strength while maintaining the original trim panel dimensions and optimizing cargo space utilization.
3Adaptability or versatility
If openings are formed in trim panels, then functional requirements are met, but offal is left behind requiring manual removal, increasing time and safety risks
Solution Approach 1:
The patent incorporates preliminary action by designing the mold to automatically eject offal through integrated removal features during the molding cycle. This preliminary ejection mechanism eliminates the need for separate manual offal removal operations, reducing time and safety risks.
4Productivity
If manual removal of offal is performed, then complete trim panel production is achieved, but safety risks and operational complexity increase
Solution Approach 1:
The patent implements self-service by designing the mold with automatic offal ejection capabilities. The mold system serves itself by incorporating features that automatically remove offal without requiring manual intervention, thereby eliminating safety risks associated with manual offal removal while maintaining productivity.
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
This method allows for the production of trim panels with smooth, aesthetically pleasing edges without additional processing steps, enhancing manufacturing efficiency, reducing costs, and ensuring safer operation by automating the removal of offal, thus improving the overall production process.
Implementation Method 1
compressing the trim panel in the mold
Implementation Method 2
compression foaming process
Implementation Method 3
compressing a portion of the trim panel until it is severed to form an edge
Data Source
AI summary
A trim panel for a vehicle is formed with a pinch-sealed edge by compression molding. The mold is designed with one or more cutting surfaces that compress or pinch the trim panel material to the point of severing the trim panel to form a tightly compressed and cut edge.