Inverted V-Slot Strand Guide for Heat-Safe Coating Alignment

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Solution Overview

Problem

Existing strand coating systems face challenges in properly aligning elongated strands with material dispensing nozzles while preventing thermal damage from heat emitted by the nozzles and accommodating strand tensioning mechanisms and power cables.

Innovation Solution

The use of reversely oriented V-shaped strand guide slots that position strands coplanarly with nozzles, creating a thermal buffer and allowing for easier integration of tensioning mechanisms and cables, with insertion slots for efficient strand alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the strands are positioned close to the nozzles for accurate coating alignment, then the coating precision is improved, but the strands are adversely affected by heat from the nozzles

Engineering Contradiction:
Improvecoating alignment precisionVSAvoidthermal damage to strands
Core Design Contradiction:
Manufacturing precisionVSObject-affected harmful factors

Solution Approach 1:

The V-shaped guide slots are inverted compared to conventional designs, with the apex pointing away from the nozzles rather than toward them. This inversion creates a thermal buffer zone that protects strands from heat while maintaining coating alignment through the guide slot geometry

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The V-shaped guide slots act as an intermediary structure between the nozzles and strands. The slots provide a geometric constraint that ensures proper strand positioning and coating alignment while physically separating the strands from direct thermal exposure to the nozzles

Inventive Principle:
Principle #24Intermediary (Mediator)

2Measurement precision

If the apex portions of V-shaped guide slots are positioned close to nozzles for better alignment, then the coating accuracy is improved, but the strands suffer thermal damage

Engineering Contradiction:
Improvestrand positioning accuracyVSAvoidstrand temperature exposure
Core Design Contradiction:
Measurement precisionVSTemperature

Solution Approach 1:

The guide slot apex portions are positioned away from the nozzles in an inverted configuration, creating maximum separation distance. This inversion maintains positioning accuracy through the V-shape geometry while minimizing thermal exposure to the strands

Inventive Principle:
Principle #13The other way round (Inversion)

3Ease of operation

If conventional V-shaped guide slots are used with apex toward nozzles, then strand positioning is simplified, but strand routing and cable management become difficult

Engineering Contradiction:
Improvestrand positioning easeVSAvoidcable routing complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The inverted V-shaped guide slots with apex pointing away from nozzles create additional space behind the guide block, simplifying the routing of power cables and air conduits. The inversion maintains strand positioning effectiveness while providing easier access for cable management and tensioning mechanism integration

Inventive Principle:
Principle #13The other way round (Inversion)

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

Ensures accurate adhesive application without thermal damage to strands, facilitates efficient strand routing, and allows for flexible placement of supporting components.

Implementation Method 1

the reverse orientation of the V-shaped grooves or guide slots space or separate the elongated strands from the applicator module dispensing nozzles through means of predetermined distances such that the strands are not thermally affected in an adverse manner by means of heat emanating from the applicator module

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Data Source

PatentEP2162375B1Strand positioning guide for use in connection with strand coating applicators
Publication Date: 2015.01.21 ILLINOIS TOOL WORKS INC
  • EP2162375B1 patent drawingFigure 1
  • EP2162375B1 patent drawingFigure 2
  • EP2162375B1 patent drawingFigure 3

AI summary

Strand positional guide implements, for use in connection with hot melt adhesive strand coating applicator assemblies, comprise a plurality of V-shaped strand guide slots wherein the apex portions are oriented outwardly away from the hot melt adhesive material dispensing nozzles. Accordingly, an enlarged air space is effectively defined between the plurality of elongated strands and its respective hot melt adhesive material dispensing nozzle such that the plurality of elongated strands are not adversely affected by the heat or thermal radiation generated by or emanating from the hot melt adhesive material dispensing nozzles thereof.