Adjustable Conveyance Curing System for Foam Molds

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Solution Overview

Problem

Traditional heating methods for curing foam items, such as ovens, are inefficient and lack control over heating and timing, which can lead to suboptimal curing processes.

Innovation Solution

A dynamically adjustable conveyance system integrated with interchangeable induction heating assemblies and removable rollers, allowing for precise temperature control and flexible positioning of induction heating coils to efficiently cure foam items within molds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If a traditional heating element such as an oven is used to heat and cure foam items, then heating can be achieved, but the system is inefficient and lacks control over heating and timing

Engineering Contradiction:
Improveheating efficiencyVSAvoidcontrol over heating and timing
Core Design Contradiction:
Use of energy by moving objectVSAdaptability or versatility

Solution Approach 1:

The continuous oven heating process is segmented into multiple discrete induction heating zones along the conveyance path. Each zone can be independently controlled with its own heating elements and timing, allowing precise control over when and where heating occurs during the curing process while improving overall energy efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from static oven heating to dynamic induction heating where heating zones can be selectively activated and deactivated based on real-time requirements. The conveyance mechanism allows continuous movement while heating parameters (temperature, timing, zone activation) are dynamically adjusted to optimize curing for different foam items.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If a fixed heating system is used, then heating can be applied, but the system cannot adapt to different mold characteristics

Engineering Contradiction:
Improveadaptation to different mold characteristicsVSAvoidsystem configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The heating system is divided into multiple independent zones that can be selectively activated. Each zone can be configured for specific heating requirements, allowing the system to adapt to different mold characteristics by activating only the necessary zones rather than requiring complete reconfiguration of a fixed system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The conveyance system with multiple induction heating zones serves multiple functions: it can handle different mold sizes, accommodate various heating patterns, and adjust timing for different foam types. This multi-functional design allows one system to adapt to different mold characteristics without requiring separate dedicated systems for each application.

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

3Temperature

If continuous oven heating is used to maintain thermal energy, then sufficient heating is achieved, but energy consumption increases

Engineering Contradiction:
Improvethermal energy maintenanceVSAvoidenergy consumption
Core Design Contradiction:
TemperatureVSLoss of energy

Solution Approach 1:

Instead of continuous heating, the induction heating zones operate periodically as molds pass through them. Heating is applied in discrete intervals when needed, with zones being activated only when a mold is present and requiring heating. This periodic operation maintains necessary thermal energy while dramatically reducing overall energy consumption compared to continuous oven operation.

Inventive Principle:
Principle #19Periodic action

Solution Approach 2:

The system replaces the mechanical thermal mass of a continuous oven with localized induction heating fields. Rather than heating a large enclosed space continuously, induction heating directly couples energy to the molds and foam items only when and where needed, eliminating the energy waste associated with heating and maintaining thermal energy in empty oven space.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 solution enables efficient and controlled heating of foam items, ensuring consistent curing results while reducing energy consumption and allowing for adaptation to different mold characteristics on a common production line.

Implementation Method 1

an induction heating assembly to heat a mold containing a foam item

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

utilizing an induction heating assembly to cure an expanded foam structure

Methodology Applied
Scientific EffectInduction heating: Induction Heating

Data Source

PatentEP3833158B1Adjustable conveyance curing system
Publication Date: 2023.08.16 NIKE INNOVATE CV
  • EP3833158B1 patent drawingFigure 1
  • EP3833158B1 patent drawingFigure 2A~2F
  • EP3833158B1 patent drawingFigure 3~4

AI summary

A system for heating a mold containing a moldable item, the system comprising: a first removable induction heating assembly adapted to receive the mold; a second removable induction heating assembly adapted to receive the mold; and a conveyance mechanism supporting both the first removable induction heating assembly and the second removable induction heating assembly, the conveyance mechanism having: a first set of rollers, wherein at least one of the first set of rollers is removable from the conveyance mechanism, a belt supported at least partially by the first set of rollers, the belt passing at least partially through the first removable induction heating assembly and the second removable induction heating assembly such that the mold, when positioned on the belt, can be conveyed between and at least partially through the first removable induction heating assembly and the second removable induction heating assembly, wherein the first removable induction heating assembly and the second removable induction heating assembly can be flexibly located at numerous positions along the conveyance mechanism by selectively removing and replacing various rollers of the first set of rollers.