Metallic Spring Press Pad for Heat Press Durability

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Solution Overview

Problem

Existing pressing pads in hydraulic heating presses suffer from material fatigue, especially at high temperatures, leading to early replacement and increased environmental impact, with poor recyclability and limited thermal conductivity, resulting in surface disorders and downtime in wood material coating processes.

Innovation Solution

A pressing pad unit with metallic spring elements connected to a heating or press plate, utilizing high elasticity and thermal conductivity properties of metals to maintain long-term performance and efficient heat transfer, combined with an optional elastomer embedding for enhanced thermal properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional elastomer-based press pads are used, then the press pads provide cushioning and pressure distribution, but they suffer from material fatigue at high temperatures leading to early replacement

Engineering Contradiction:

Improvepress pad durabilityVSAvoidpress pad service life

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The invention changes the material parameter from traditional elastomer to metallic spring element, fundamentally altering the physical and chemical properties to achieve high-temperature resistance and fatigue resistance while maintaining the cushioning function

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The invention creates a composite structure by embedding metallic spring elements within an elastomer matrix, combining the high-temperature resistance of metal with the cushioning properties of elastomer to resolve the contradiction between durability and service life

Inventive Principle:

Principle #40Composite materials

2Temperature

If elastomer materials are used in press pads, then they provide resilience and cushioning, but they have limited thermal conductivity affecting heat transfer efficiency

Engineering Contradiction:

Improveheat transfer efficiencyVSAvoidpress pad performance consistency

Core Design Contradiction:

TemperatureVSReliability

Solution Approach 1:

The composite structure of metallic spring elements embedded in elastomer creates a thermal conduction network that significantly improves heat transfer efficiency while the elastomer matrix maintains the cushioning and resilience functions, resolving the contradiction between thermal performance and functional reliability

Inventive Principle:

Principle #40Composite materials

3Manufacturing precision

If press pads are replaced frequently due to material fatigue, then surface quality can be maintained, but production downtime increases

Engineering Contradiction:

Improvesurface qualityVSAvoidproduction downtime

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

By changing the material from elastomer to metallic spring element, the invention achieves resistance to material fatigue and degradation at high temperatures, allowing the press pad to maintain surface quality over extended periods and reduce replacement frequency, thereby minimizing production downtime

Inventive Principle:

Principle #35Parameter changes

4Ease of operation

If conventional press pads are used, then they provide basic cushioning, but they have poor recyclability increasing environmental impact

Engineering Contradiction:

Improvecushioning functionVSAvoidenvironmental impact

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The invention changes the material composition to metallic spring elements which are inherently more recyclable and environmentally friendly compared to conventional elastomer materials, while maintaining the essential cushioning function through the elastic properties of the metal springs

Inventive Principle:

Principle #35Parameter changes

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 provides a pressing pad with extended lifespan and improved thermal conductivity, enabling uniform pressure distribution and heat transfer, reducing surface disorders and downtime while enhancing recyclability.

Implementation Method 1

utilizing high elasticity and thermal conductivity properties of metals to maintain long-term performance and efficient heat transfer

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

A pressing pad unit with metallic spring elements connected to a heating or press plate, utilizing high elasticity and thermal conductivity properties of metals

Methodology Applied

Scientific EffectElasticity: Elasticity

Data Source

PatentEP4032694B1Of a press pad-press plate unit and a heating plate or set of a press pad-heating plate unit and a press plate, for use in a hydraulic single- or multi-platen heat press

Publication Date: 2025.02.12 HUECK RHEINISCHE GMBH

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AI summary

The invention relates to a press pad (1) for use in a hydraulic single- or multi-stage heating press, comprising a planar support structure (2) and a plurality of metallic spring elements (3) connected to and distributed within or on the support structure (2). The support structure (2) comprises a metallic plate, namely a press plate (29) or a heating plate (28) of the single- or multi-stage heating press, and the spring elements (3) are bonded, soldered, welded, and/or positively connected to the plate. The invention further relates to a press pad-press plate unit (32) or a press pad-heating plate unit (31).