Robotic Core Blowing Device for Flexible Foundry Workflows

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Solution Overview

Problem

Dedicated core fabrication systems are inflexible due to compatibility limitations with various aggregate materials and curing methods, and their stationary nature restricts workflow flexibility in large-scale manufacturing operations.

Innovation Solution

A core blowing device configured to couple with a robotic arm, enabling the transfer of aggregate materials into core molds using a fluidizing chamber and compressed air, allowing for the use of different aggregate compositions and curing processes, and facilitating the production of cores in multiple locations with a single system.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a dedicated core fabrication system is used, then the efficiency of the manufacturing operation is enhanced, but the flexibility of the manufacturing operation is limited

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidmanufacturing flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The core fabrication device is designed to handle multiple aggregate materials (sand, shot, grit) and support both hot box and cold box curing methods through a single unified system. The device includes interchangeable molds and adjustable parameters to accommodate different material types and curing requirements, eliminating the need for separate dedicated systems for each material or method.

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

Solution Approach 2:

The system incorporates a robotic arm that enables dynamic positioning and movement of the core fabrication device to multiple locations. This mobility allows the single device to serve multiple workstations and adapt to different production layouts, maintaining high efficiency while providing operational flexibility.

Inventive Principle:
Principle #15Dynamics

2Reliability

If a dedicated core fabrication device is used, then the curing process is optimized for a single method, but the ability to use different curing methods is limited

Engineering Contradiction:
Improvecuring process optimizationVSAvoidcuring method flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The device integrates both hot box and cold box curing capabilities within a single system. The curing chamber can be configured to deliver heated air for hot box curing or cooled air for cold box curing, allowing operators to select the appropriate method based on material requirements while maintaining optimized performance for each method.

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

3Stability of the object's composition

If a stationary core fabrication device is used, then the system is stable, but the workflow arrangement flexibility in large-scale manufacturing is limited

Engineering Contradiction:
Improvesystem stabilityVSAvoidworkflow arrangement flexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The core fabrication device is mounted on a robotic arm that provides controlled mobility. The system can be dynamically positioned to different workstations and locations throughout the manufacturing facility, enabling flexible workflow arrangements. The robotic arm maintains stable positioning during operation while allowing repositioning between tasks, combining stability with adaptability.

Inventive Principle:
Principle #15Dynamics

4Manufacturing precision

If multiple dedicated systems are used for different aggregate materials, then each material is processed optimally, but the number of systems and complexity increases

Engineering Contradiction:
Improvematerial processing optimizationVSAvoidsystem quantity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

A single core fabrication device is designed to process multiple aggregate materials (sand, shot, grit) using the same fundamental mechanisms. The system includes adjustable parameters, interchangeable molds, and adaptable curing options that maintain optimal processing for each material type while consolidating what would otherwise require multiple separate systems, thereby reducing overall complexity.

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

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 enhances manufacturing flexibility by allowing the production of cores from various aggregate materials and curing methods, reducing the need for multiple systems and enabling efficient, high-speed transfer of aggregate materials into multiple core molds, thereby improving workflow efficiency and cost-effectiveness.

Implementation Method 1

a compressed air source operatively coupled to an inlet fitting formed on an outer wall surface of the fluidizing chamber, the inlet fitting further defining a conduit through the wall of the fluidizer into the fluidizing chamber

Methodology Applied
Scientific EffectCompressed air propulsion: Pressure Gradient

Implementation Method 2

a fluidizer that includes a continuous wall enclosing a fluidizing chamber, the fluidizing chamber opening at opposed upper and lower fluidizer ends

Methodology Applied
Scientific EffectFluidization: Fluidisation

Data Source

PatentUS11103918B2Core blowing apparatus for robotic system
Publication Date: 2021.08.31 HONDA MOTOR CO LTD
  • US11103918B2 patent drawing
  • US11103918B2 patent drawing
  • US11103918B2 patent drawing

AI summary

A core blowing device includes a hopper, a fluidizer, a shooting head, and a robotic arm fitting. The core blowing device is configured to removeably couple to a free end of a robotic arm and is configurable to implement a variety of core casting processes using different aggregate materials, binders, catalysts, and/or curing processes.