Expansion Molding Press Reuse With Accurate Die Closing Stops

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Solution Overview

Problem

The existing molding devices for metal materials are costly to introduce due to the need for specialized equipment and infrastructure, particularly for expansion molding processes.

Innovation Solution

A molding device is configured using parts of an existing press device, including a load receiving mechanism to accurately stop die closing operations, allowing for expansion molding with reduced capital investment by utilizing existing components such as hydraulic units, main cylinders, beds, crowns, and slides, and leveraging the foundation and high-pressure air generating devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If specialized equipment and infrastructure are used for expansion molding of metal materials, then molding precision and reliability are improved, but introduction costs and device complexity increase

Engineering Contradiction:
Improvemolding precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies universality by enabling an existing press device to perform both conventional pressing operations and expansion molding operations. The press device is equipped with a fluid supply unit that can supply fluid to the workpiece during pressing, allowing the same equipment to achieve expansion molding effects. This multi-functional approach reduces the need for specialized dedicated equipment while maintaining molding precision.

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

Solution Approach 2:

The patent merges the pressing function and fluid supply function into a single integrated process. The fluid supply unit is combined with the press device, allowing simultaneous pressing and fluid supply operations. This combination eliminates the need for separate specialized equipment for expansion molding, thereby reducing device complexity and introduction costs while maintaining molding quality.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If specialized equipment is purchased for expansion molding, then molding capability is improved, but introduction costs increase

Engineering Contradiction:
Improvemolding capabilityVSAvoidintroduction costs
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The press device is modified to perform multiple functions including conventional pressing and expansion molding. By adding a fluid supply unit to the existing press device, the equipment gains expansion molding capability without requiring complete replacement with specialized equipment, thereby reducing introduction costs while improving versatility.

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

Solution Approach 2:

The existing press device serves itself by performing expansion molding operations through the integrated fluid supply unit. The press device's own pressing action combined with fluid supply from the integrated unit enables it to perform expansion molding without requiring separate dedicated expansion molding equipment, reducing capital investment while enhancing capability.

Inventive Principle:
Principle #25Self-service

3Stability of the object's composition

If new foundation work is performed for molding device installation, then device stability is improved, but introduction costs and construction time increase

Engineering Contradiction:
Improvedevice stabilityVSAvoidconstruction time
Core Design Contradiction:
Stability of the object's compositionVSLoss of time

Solution Approach 1:

The existing foundation infrastructure is utilized to support both the press device and the fluid supply unit. By designing the system to share the existing foundation, the patent avoids the need for new foundation work while maintaining device stability. The press device and fluid supply unit are integrated onto the same existing foundation structure, reducing construction time and costs.

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

4Reliability

If complete new equipment is purchased for expansion molding, then process reliability is improved, but investment costs increase

Engineering Contradiction:
Improveprocess reliabilityVSAvoidinvestment costs
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The pressing system and fluid supply system are merged into an integrated expansion molding system. The existing reliable press device is combined with a fluid supply unit, creating a reliable expansion molding process without requiring complete replacement with new specialized equipment. This integration maintains process reliability while reducing investment costs.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The existing press device continues to serve its primary pressing function while simultaneously performing expansion molding through the integrated fluid supply unit. This self-service approach maintains the reliability of the established press device while adding expansion molding capability, avoiding the need for new equipment investment.

Inventive Principle:
Principle #25Self-service

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 approach reduces introduction costs by repurposing existing equipment and infrastructure, enabling accurate die positioning and efficient expansion molding of metal materials while minimizing investment in new machinery and foundation work.

Implementation Method 1

a fluid supply unit that supplies fluid to the workpiece

Methodology Applied
Scientific EffectFluid pressure: Pressure Increase

Data Source

PatentUS20240149323A1Molding device
Publication Date: 2024.05.09 SUMITOMO HEAVY IND LTD
  • US20240149323A1 patent drawing
  • US20240149323A1 patent drawing
  • US20240149323A1 patent drawing

AI summary

A molding device supplies a fluid and performs expansion molding of a metal material using at least a part of members of an existing press device.