Melt Splitting Device with Uninterrupted Channels

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Solution Overview

Problem

Existing mold-tool systems often produce low-quality molded articles due to inadequate melt distribution and mixing, leading to inconsistent thermal profiles and mechanical stresses.

Innovation Solution

A mold-tool system incorporating a melt splitting device with a single inlet and multiple outlets, featuring uninterrupted melt channels that extend from the inlet to each outlet, ensuring fluid communication and preventing inter-channel mixing, while allowing for varying thermal conductivity and fatigue strength materials to address specific requirements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional melt distribution systems are used, then device complexity is reduced, but manufacturing precision deteriorates due to inadequate melt distribution and mixing

Engineering Contradiction:
Improvemolded article qualityVSAvoidmelt splitting device complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The melt distribution system is segmented into multiple independent uninterrupted melt channels, each extending from the single inlet to a specific outlet. This segmentation prevents inter-channel mixing and ensures consistent melt flow to each cavity, directly improving molded article quality while the integrated single-inlet design keeps the overall device complexity manageable.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each melt channel is designed with specific local characteristics including varying cross-sectional areas and thermal conductivities tailored to the requirements of associated cavities. This local customization of channel properties ensures optimal melt distribution and thermal management for each specific cavity, improving manufacturing precision without requiring a completely complex system redesign.

Inventive Principle:
Principle #3Local quality

2Productivity

If multiple melt channels are used, then productivity is improved by serving multiple cavities, but melt flow consistency deteriorates due to inter-channel mixing

Engineering Contradiction:
Improvemulti-cavity productionVSAvoidmelt flow consistency
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The system uses multiple separate uninterrupted melt channels instead of a single common channel, segmenting the melt flow paths to prevent mixing between channels while still serving multiple cavities simultaneously. This maintains both high productivity through multi-cavity service and melt flow consistency by eliminating inter-channel mixing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The uninterrupted melt channels act as intermediaries that isolate and protect the melt flow in each channel from mixing with other channels. These dedicated channels serve as mediating structures that enable multi-cavity production while preserving individual channel flow characteristics and consistency.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Stability of the object's composition

If uninterrupted melt channels are implemented, then melt flow consistency is improved, but device complexity increases

Engineering Contradiction:
Improvemelt flow front profile consistencyVSAvoidchannel configuration complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

Multiple uninterrupted melt channels are merged into a single integrated melt splitting device body with a common inlet. This combining approach maintains the benefits of individual uninterrupted channels for flow consistency while reducing overall device complexity through integration and shared structural elements.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The melt splitting device is designed as a universal component that can serve multiple cavities through its array of uninterrupted channels. The device performs multiple functions simultaneously - distributing melt to different cavities with varying requirements - while maintaining a relatively simple overall structure that can be manufactured as a single integrated component.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution ensures consistent melt flow front profiles and reduced mechanical stresses, improving the quality of molded articles by maintaining uninterrupted melt channels and allowing for tailored thermal and mechanical performance.

Implementation Method 1

a plurality of uninterrupted melt channels, where each melt channel extends from the inlet to an associated one of the outlets

Methodology Applied
Scientific EffectFluid flow:

Data Source

PatentUS8545212B2Mold-tool system having melt splitting device including uninterrupted melt channels extending from inlet and outlets
Publication Date: 2013.10.01 HUSKY INJECTION MOLDING SYST LTD
  • US8545212B2 patent drawing
  • US8545212B2 patent drawing
  • US8545212B2 patent drawing

AI summary

A mold-tool system is provided which includes a melt distribution device and a melt splitting device configured to interact with the melt distribution device. The melt splitting device includes a single inlet and multiple outlets spaced from the single inlet. The outlets are configured for fluid communication with the melt distribution device. The melt splitting device further includes a plurality of uninterrupted melt channels, where each melt channel extends from the inlet to an associated one of the outlets.