Molded Trim Component Edge Rim Integration
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Solution Overview
Problem
Conventional molding apparatuses for producing interior trim components from multi-layered sandwich laminate raw materials result in significant material waste due to the use of a separate slip frame, which also occupies excessive space.
Innovation Solution
The apparatus employs inner and outer edge molds that clamp and hold the raw material blank's edge rim, allowing it to slip inwardly and be molded, eliminating the need for a separate slip frame and minimizing waste by integrating the edge rim into the final product.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a separate slip frame is used to hold the raw material blank during molding, then the raw material can be properly positioned and allowed to slip inwardly during deformation, but significant material waste occurs and the apparatus occupies excessive space
Solution Approach 1:
The patent merges the slip frame function into the mold structure itself by providing slip frames that are integrated with the mold tools. The slip frames are positioned between the mold tools and the raw material blank, allowing the mold structure to perform both containment and slippage accommodation functions simultaneously, thereby reducing material waste while maintaining positioning accuracy
Solution Approach 2:
The patent segments the mold structure into distinct functional zones: the mold tools for containment, the slip frames for allowing controlled slippage, and the core mold for shaping. This segmentation allows each component to perform its specific function optimally while working together as an integrated system, reducing overall material waste
2Manufacturing precision
If a separate slip frame is used to hold the raw material blank during molding, then the raw material can be properly positioned, but the apparatus occupies excessive space
Solution Approach 1:
The patent combines the slip frame with the mold tool structure, eliminating the need for a separate, space-consuming slip frame apparatus. The slip frame is integrated into the mold assembly, allowing the same structural elements to serve multiple functions: containing the raw material, allowing controlled slippage, and maintaining positioning accuracy, thereby significantly reducing the overall apparatus volume
3Stability of the object's composition
If the edge rim of the raw material is clamped and held during molding, then the raw material can be securely positioned, but the edge rim may be damaged or deformed
Solution Approach 1:
The patent applies different clamping characteristics to different regions of the raw material blank. The slip frames provide controlled slippage for the edge rims while the core mold provides firm containment for the central portion. This local differentiation allows the edge rims to be securely held without excessive clamping force that would cause damage, while still maintaining position stability during the molding process
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 approach reduces material waste to a minimum and significantly reduces the overall size of the molding apparatus, making it more space-efficient while maintaining the quality of the molded product.
Implementation Method 1
The outer edge molds hold the edge rim of the raw material blank with sufficient clamping friction to support the raw material blank yet allow slippage thereof
Implementation Method 2
as the upper and lower mold tools are pressed together and thereby deform the raw material blank from its initial flat planar configuration into a three-dimensionally molded contoured configuration
Implementation Method 3
The substrate or carrier layer may initially include thermoplastic fibers, for example of polypropylene, forming the matrix and hot-melt adhesive of the substrate
Data Source
AI summary
An apparatus for producing a molded product from a sheet-form raw material blank has first and second mold tools that each respectively include a respective inner core mold and a respective outer edge mold laterally adjacent thereto. Drive elements drive the outer edge molds relative to a machine frame, and drive the inner core molds relative to the outer edge molds. A molding process involves closing the outer edge molds to hold an edge rim of the material blank while allowing slippage thereof, and then closing the inner core molds to three-dimensionally deform and mold a central portion of the material blank while pulling required additional material by slippage through the outer edge molds. A separate slip frame is not used. The edge rim held by the outer edge molds remains as a permanent mounting rim or flange of the finished molded product. Edge waste is minimized.