Magnetic Insert Device for Casting Mold Recesses

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Solution Overview

Problem

The challenge in casting mold technology lies in the complex positioning and fixing of insert devices to form recesses in castings, which complicates the production and post-processing of cast parts with recesses, particularly due to issues with magnetic forces and carrier systems described in prior art.

Innovation Solution

An insert device for a casting mold featuring a housing with a receiving space and a magnetically operated holding device that securely fixes the housing to one of the mold halves, allowing for precise formation of recesses with various geometric shapes, including openings and depressions, regardless of demolding direction, using magnetic fixation to minimize material interference during casting.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If insert devices are held by magnetic force or carrier systems, then recesses can be formed in castings, but the positioning and fixing becomes complex and post-processing becomes complex

Engineering Contradiction:
Improverecess formation precisionVSAvoidinsert device positioning and fixing complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical positioning and fixing systems with a magnetic field-based holding device. The holding device generates a magnetic field that magnetically fixes the insert device to the mold half, eliminating the need for complex mechanical carriers or positioning mechanisms while maintaining precise recess formation.

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

Solution Approach 2:

The patent changes the physical state or properties of the holding mechanism from mechanical to magnetic. By utilizing magnetic field strength as the controlling parameter instead of mechanical fastening forces, the system achieves both simplicity and precision in insert device positioning and fixing.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If insert devices are fixed to mold halves, then recesses can be formed, but material interference occurs during casting

Engineering Contradiction:
Improverecess shape accuracyVSAvoidmaterial interference
Core Design Contradiction:
Manufacturing precisionVSObject-generated harmful factors

Solution Approach 1:

The magnetic holding device allows the insert device to be securely fixed without physical mechanical contact that would cause material interference. The magnetic field provides the necessary holding force while keeping the insert device surface clear of interfering mechanical fixtures.

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 simplifies the formation of recesses in castings by reducing post-processing efforts, enabling the creation of multiple recesses with reduced material interference and allowing for the formation of undercuts and thin-walled structures, thereby streamlining the casting process.

Implementation Method 1

The holding device comprises at least one magnet which magnetically fixes the housing to the mold half during use

Methodology Applied
Scientific EffectMagnetic force: Magnetism

Data Source

PatentEP4268993B1Insert device and method for producing a cast part
Publication Date: 2024.11.06 UCOSAN BV
  • EP4268993B1 patent drawingFigure 1~2
  • EP4268993B1 patent drawingFigure 3~4
  • EP4268993B1 patent drawingFigure 5~6

AI summary

The invention relates to an insert device (10) for a mold (30) for forming at least one recess (31) in a casting (34), in particular an opening (31a) and/or a depression (31b), wherein the mold (30) has at least two mold halves (32', 32"), wherein the insert device comprises a housing (11) with a receiving space (12) and at least one holding device (13) for holding the housing (11) on at least one of the mold halves (32', 32"), which is arranged in the receiving space (12), wherein the housing (11) has at least one outer shape (14) which defines the shape (35) of the at least one recess (31) of the casting (34) at least partially, and the holding device (13) comprises at least one magnet (15', 15") which holds the housing (11) on the mold half (32', 32") during use. magnetically attached.