Metal-Resin Composite Molding with a Detachable Cavity Insert

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Solution Overview

Problem

In the production of metal-resin composites using a set of molds, the molding accuracy of the metal member is compromised due to the design of the mold cavity, which prevents the upper mold from accurately molding the metal member along the shape of the lower mold, leading to suboptimal integration with the resin material.

Innovation Solution

An apparatus and method that incorporates a molding auxiliary component detachably fixed to the upper mold, reducing the cavity space during metal member press molding and allowing for improved alignment with the lower mold, while the auxiliary component is removed during resin integration, ensuring precise shaping of the metal-resin composite.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a cavity is formed in the upper mold for arranging resin material, then the metal-resin composite can be integrally molded, but the molding accuracy of the metal member is deteriorated

Engineering Contradiction:
Improveintegral molding capabilityVSAvoidmolding accuracy of metal member
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The upper mold is segmented into two functional parts: a molding auxiliary component that provides a pressing surface for accurate metal member molding, and a mold cavity portion that provides space for resin material arrangement. This segmentation allows each part to perform its specific function optimally without compromising the other.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The molding auxiliary component is attached to the upper mold before press molding the metal member to ensure accurate molding. After the metal member is molded, the auxiliary component is removed to form the cavity for resin material arrangement before integral molding.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If the upper mold is designed with a cavity for resin material, then the metal-resin composite can be produced, but the metal member cannot be molded along the shape of the lower mold

Engineering Contradiction:
Improvemetal-resin composite productionVSAvoidshape accuracy of metal member
Core Design Contradiction:
ProductivityVSShape

Solution Approach 1:

The upper mold configuration is made dynamic through the detachable molding auxiliary component. The component is attached during metal member molding to ensure shape accuracy, and removed during resin material arrangement to enable cavity formation. This dynamic reconfiguration allows the system to adapt to different molding requirements.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If the distance between the upper mold and lower mold is reduced for accurate metal member molding, then molding accuracy improves, but the cavity space for resin material is insufficient

Engineering Contradiction:
Improvemolding accuracyVSAvoidcavity volume for resin material
Core Design Contradiction:
Manufacturing precisionVSVolume of stationary object

Solution Approach 1:

The upper mold is divided into a pressing component and a cavity portion. The pressing component provides the necessary pressing surface for accurate metal member molding, while the cavity portion provides sufficient space for resin material arrangement. This segmentation resolves the conflict between reducing distance for accuracy and maintaining cavity volume.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12059827B2Apparatus, mold set, and method for producing metal-resin composite
Publication Date: 2024.08.13 KOBE STEEL LTD
  • US12059827B2 patent drawing
  • US12059827B2 patent drawing
  • US12059827B2 patent drawing

AI summary

An apparatus for manufacturing a metal-resin composite by press molding includes upper and lower molds sandwiching a metal member and a resin material, a molding auxiliary component detachably fixed to the upper mold to fill part of a cavity for the resin material between the upper and lower molds, and a drive unit that vertically moves at least one of the upper and lower molds. The molding auxiliary component has a first press surface for molding the metal member. The upper mold has a second press surface for integrally molding the metal member and the resin material when the molding auxiliary component is removed. The upper and lower molds are for pressing the resin material between the second press surface and the lower mold to cause the resin to flow to fill the cavity with the resin material when the molding auxiliary component is removed.