Multi-Sleeve Extruder Assembly for Striped Wire Alignment

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Solution Overview

Problem

Existing extruder assemblies face challenges in efficiently extruding striped wires with multiple sleeves, particularly in ensuring precise alignment and fluid communication of annular channels for uniform material distribution and seamless sleeve formation.

Innovation Solution

The extruder assembly features a barrel with a first subassembly for extruding a first sleeve and a second subassembly for extruding a second sleeve, comprising annular channels with specific geometries and protrusions to define fluid communication pathways, allowing for the precise extrusion of striped wire configurations with multiple annulus sectors and materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple annular channels are used to extrude multiple sleeves, then the productivity and versatility of wire manufacturing is improved, but the device complexity and difficulty of ensuring precise alignment increase

Engineering Contradiction:
Improvewire manufacturing efficiencyVSAvoidextruder assembly structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple extrusion functions into a single integrated second subassembly that houses both the second channel and third channel. This merging approach allows simultaneous extrusion of multiple sleeves with different materials while maintaining a compact structure, thereby improving productivity without proportionally increasing device complexity

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The extruder assembly is segmented into distinct subassemblies (first subassembly for first sleeve, second subassembly for second and third channels) that can be independently configured and maintained. This segmentation facilitates precise alignment of each channel while simplifying the overall complex structure through modular design

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If protrusions are added to block portions of openings between channels, then material distribution uniformity and sleeve formation precision are improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvesleeve alignment precisionVSAvoidextruder assembly fabrication
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

Protrusions are strategically positioned at specific locations within the second subassembly to block portions of openings between channels. This local modification approach precisely controls material flow distribution without requiring complete redesign of the entire extruder, thereby improving sleeve alignment precision while limiting the increase in manufacturing complexity to only the specific regions where protrusions are added

Inventive Principle:
Principle #3Local quality

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 configuration enables efficient and precise extrusion of striped wires with multiple sleeves, ensuring uniform material distribution and seamless integration of protective sleeves onto conductors, enhancing manufacturing efficiency and quality.

Implementation Method 1

a first subassembly for extruding a first sleeve on the conductor; and a second subassembly for extruding a second sleeve onto the first sleeve

Methodology Applied
Scientific EffectExtrusion: Extrusion

Data Source

PatentEP4464500A1Extruder assembly
Publication Date: 2024.11.20 MILACRON MARKETING CO LLC
  • EP4464500A1 patent drawingFigure 1
  • EP4464500A1 patent drawingFigure 2
  • EP4464500A1 patent drawingFigure 3

AI summary

An extruder assembly comprising a barrel, through which a conductor can travel; a first subassembly for extruding a first sleeve on the conductor; and a second subassembly for extruding a second sleeve onto the first sleeve, the second sleeve comprising a first portion, a second portion, and a cross-section comprising a first annulus sector and a second annulus sector, the first portion comprising the first annulus sector, the second portion comprising the second annulus sector, the first and second portions are in contact with the first sleeve.