Profiled Heat Dissipater for Molding System Cooling
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Solution Overview
Problem
Contemporary molding systems do not effectively consider the actual part geometry when cooling molded articles, leading to uneven heat removal and subsequent geometric deviations due to uneven shrinkage, particularly in components with varying thicknesses like the neck portion of blow-moldable containers.
Innovation Solution
A component of the molding system featuring a heat dissipater configured to impart a profiled heat removal rate that matches the heat distribution of the molded article, using structures with varying thermal conductivity and coolant channels that adjust based on the thickness of the article, ensuring faster cooling of thicker sections and slower cooling of thinner sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If uniform cooling is applied to all sections of the molded article, then the cooling process is simple, but geometric deviations occur due to uneven shrinkage in sections of varying thickness
Solution Approach 1:
The cooling system implements different cooling rates for different sections of the molded article based on their thickness. Thicker sections receive faster cooling while thinner sections receive slower cooling, creating localized cooling characteristics that match the geometric requirements of each region.
Solution Approach 2:
The cooling system is divided into multiple independent cooling zones or channels that can be controlled separately. Each cooling channel corresponds to specific regions of the molded article, allowing independent adjustment of cooling parameters for different thickness zones.
2Manufacturing precision
If faster cooling is applied to thicker sections, then dimensional stability improves, but the overall cooling time increases to accommodate thinner sections
Solution Approach 1:
The system applies differentiated cooling rates to different sections simultaneously, allowing thick sections to cool faster while thin sections cool slower, optimizing the overall cooling process without extending the total cycle time.
Solution Approach 2:
The cooling system dynamically adjusts cooling rates based on real-time temperature feedback from various sections, enabling adaptive control that optimizes cooling speed for each region while maintaining overall process efficiency.
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 achieves improved dimensional stability by evenly cooling all sections of the molded article, resulting in reduced geometric deviations and even shrinkage, enhancing the quality of the final product.
Implementation Method 1
a heat dissipater configured to impart a profiled heat removal rate on a selected portion of a molded article
Implementation Method 2
coolant channels that adjust based on the thickness of the article
Data Source
AI summary
Disclosed herein, amongst other things is a component of a molding system (e.g. mold component, post-mold component, etc.) having a heat dissipater that is configured to impart a profiled heat removal rate on a selected portion of a molded article that generally matches a heat distribution therein.