Mold Assembly With Movable Support Pieces For Insert Positioning

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Solution Overview

Problem

Existing mold assemblies for insert molding require significant effort for core mounting and removal, leading to increased molding cycle time and decreased productivity.

Innovation Solution

A mold assembly configuration that includes support members with movable support pieces, allowing the insert part to be secured orthogonally to the mold opening and closing direction, eliminating the need for inner cores and enabling shorter molding cycles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If cores are mounted and removed for each molding operation, then insert molded articles can be produced with proper positioning, but molding cycle time increases and productivity decreases

Engineering Contradiction:

Improvepositioning accuracy of insert partVSAvoidmolding cycle time

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

The support pieces are pre-positioned in the mold body before the molding cycle begins. The insert part is placed on these pre-positioned support pieces, which automatically locate and secure it in the correct position. This preliminary arrangement of positioning elements eliminates the need for mounting and removing cores during each molding operation, thereby reducing cycle time while maintaining positioning accuracy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The positioning function is segmented from the traditional core structure into separate support pieces that are integrated into the mold body. These support pieces are distinct, movable elements that can independently position the insert part without requiring the complex assembly and disassembly of complete cores. This segmentation allows for faster setup while preserving precise positioning capability.

Inventive Principle:

Principle #1Segmentation

2Stability of the object's composition

If multiple cores are used to support the insert part, then positioning stability is improved, but device complexity and operation difficulty increase

Engineering Contradiction:

Improvepositioning stability of insert partVSAvoidmold assembly complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The support pieces are designed to be movable rather than fixed, allowing them to adapt to the insert part's position and provide stable support without requiring complex rigid structures. The movability of support pieces simplifies the overall mold assembly while maintaining positioning stability during the molding process.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The support pieces serve multiple functions: they position the insert part, support it during molding, and can be easily repositioned or removed. This multi-functionality reduces the need for separate positioning mechanisms, thereby simplifying the device complexity while maintaining stable positioning throughout the molding cycle.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS10814536B2Mold assembly, method for producing insert molded article, and insert molded article

Publication Date: 2020.10.27 KK TOKAI RIKA DENKI SEISAKUSHO

AI summary

A mold assembly includes a mold body configured to mold an insert molded article, and a support member including at least two support pieces configured to support an insert part in a direction substantially orthogonal to a mold opening and closing direction. The insert part is disposable within the mold body, the support pieces are each configured to be movable between a supporting position and a non-supporting position, and the support pieces are each configured to support the insert part at the supporting position, and not to support the insert part at the non-supporting position.