Injection Mold Core Automatic Hose Extraction Mechanism

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Solution Overview

Problem

The existing injection mold for intake hoses requires manual and labor-intensive processes to extract the finished product from the main core, leading to increased manufacturing time and costs due to the need for additional equipment and the risk of excessive inflation damaging the hose.

Innovation Solution

An injection mold design featuring a dualized main core with an air supplying member that automatically extracts the intake hose by inflating it with compressed air, eliminating the need for additional extraction equipment and allowing for easier separation without manual operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If manual extraction process is used with additional equipment (release sheet, air gun, release cup, release band), then the intake hose can be extracted from the main core, but the working time increases and manufacturing cost increases

Engineering Contradiction:

Improveextraction processVSAvoidworking time

Core Design Contradiction:

Ease of manufactureVSLoss of time

Solution Approach 1:

The patent combines the extraction function into the main core itself by providing a moving member that can automatically push the intake hose off the main core. This merges the extraction function with the molding core, eliminating the need for separate extraction equipment and manual operations, thereby reducing both working time and manufacturing cost.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The main core is designed with self-service extraction capability through the moving member that can automatically push the finished product off. The system performs its own extraction function without requiring external equipment or manual intervention, achieving self-service and reducing production time.

Inventive Principle:

Principle #25Self-service

2Ease of manufacture

If additional equipment (release sheet, air gun, release cup, release band) is used for extraction, then the intake hose can be separated from the main core, but the manufacturing cost increases

Engineering Contradiction:

Improveextraction processVSAvoidequipment

Core Design Contradiction:

Ease of manufactureVSDevice complexity

Solution Approach 1:

The extraction function is merged into the main core structure itself through the moving member. This eliminates the need for separate extraction equipment such as air guns, release cups, and release bands, thereby simplifying the device and reducing manufacturing cost while maintaining extraction capability.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent extracts the extraction function from external equipment and integrates it into the main core. By taking out the need for separate extraction tools and incorporating the pushing function directly into the core structure, the device complexity is reduced while maintaining the ability to separate the intake hose.

Inventive Principle:

Principle #2Taking out (Extraction)

3Productivity

If compressed air is supplied to inflate the intake hose for extraction, then the intake hose can be forcibly extracted from the main core, but the size of the finished product changes and defective rate increases

Engineering Contradiction:

Improveextraction efficiencyVSAvoidproduct size

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

The patent replaces the pneumatic inflation method with a direct mechanical pushing action. Instead of supplying compressed air to inflate the hose and force extraction, the moving member directly pushes the hose off the main core through mechanical contact. This substitution eliminates the risk of over-inflation and size change while maintaining extraction efficiency.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The moving member acts as an intermediary between the main core and the intake hose during extraction. Instead of using compressed air as the mediating force that causes over-inflation, the moving member provides controlled mechanical contact to push the hose off, serving as a better intermediary that maintains product dimensions while enabling extraction.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 reduces manufacturing time and costs by enabling automatic extraction of the intake hose, improving workability, and preventing excessive inflation, thus enhancing the product's merchantability.

Implementation Method 1

an air supplying member supplying compressed air between the first and second cores that are coupled with each other and the intake hose when separating the upper mold and the lower mold after molding of the intake hose is completed

Methodology Applied

Scientific EffectCompression: Compression

Data Source

PatentUS8721953B2Injection mold for intake hose and intake hose production method using the same

Publication Date: 2014.05.13 HYUNDAI MOTOR CO LTD

AI summary

An injection mold for an intake hose and an intake hose production method utilizes a main core removably dualized to automatically extract a molding-completed intake hose from the main core after injection molding is completed and an air supplying member supplying compressed air between the main core and the molding-completed intake hose is configured in the main core to automatically extract the intake hose from the main core without an additional extraction equipment, thereby reducing an entire manufacturing process and saving a manufacturing cost.