Automatic Media Coupling for Blow Mold Base Supports

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Solution Overview

Problem

Manual coupling and decoupling of media couplings in blow molding devices result in high set-up times and potential errors, requiring an operator for every mold change, leading to inefficiencies and increased machine downtimes.

Innovation Solution

A fully automatic blow mold change system using a changing device, such as a robot, that raises and lowers the base mold to automatically connect and disconnect media couplings, eliminating the need for manual intervention and enabling quick and error-free changes between blow molding devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual coupling and decoupling of media couplings is used, then operator flexibility is maintained, but set-up times increase and machine downtime increases

Engineering Contradiction:
Improveoperator flexibilityVSAvoidset-up time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system performs self-service through automatic coupling and decoupling of media couplings via the changing device. The robot autonomously connects and disconnects media lines without operator intervention, eliminating manual operations while maintaining flexibility in mold changes.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

Manual mechanical operations are replaced with an automated robotic system. The changing device uses mechanical automation to perform media coupling operations that were previously done manually, reducing set-up time while maintaining operational flexibility.

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

2Ease of operation

If manual coupling and decoupling of media couplings is used, then operator control is maintained, but errors increase and reliability decreases

Engineering Contradiction:
Improveoperator controlVSAvoiderror rate
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The automated system performs self-service media coupling operations, eliminating human error in the process. The robot consistently executes coupling and decoupling operations with high reliability, removing variability introduced by manual operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system incorporates feedback mechanisms to monitor and verify media coupling status. This ensures correct connection and disconnection of media lines, preventing errors and maintaining high reliability in the blow mold changing process.

Inventive Principle:
Principle #23Feedback

3Device complexity

If manual coupling and decoupling of media couplings is used, then simple equipment is maintained, but productivity decreases due to frequent operator intervention

Engineering Contradiction:
Improveequipment simplicityVSAvoidproduction efficiency
Core Design Contradiction:
Device complexityVSProductivity

Solution Approach 1:

The automated changing device performs self-service operations to maintain media connections during mold changes. This eliminates the need for continuous operator intervention, significantly improving productivity while the system manages its own complexity autonomously.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system performs preliminary actions by pre-positioning media couplings and preparing connection points before mold changes occur. This ensures rapid and error-free coupling operations during actual mold changes, improving productivity without requiring complex real-time operations.

Inventive Principle:
Principle #10Preliminary action

4Adaptability or versatility

If manual coupling and decoupling of media couplings is used, then operational flexibility is maintained, but machine downtime increases

Engineering Contradiction:
Improveoperational flexibilityVSAvoidmachine downtime
Core Design Contradiction:
Adaptability or versatilityVSDuration of action of stationary object

Solution Approach 1:

The automated system performs self-service media coupling operations during mold changes, maintaining operational flexibility while reducing the time required for each changeover. The robot efficiently executes coupling and decoupling operations without operator delay.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system maintains continuity of useful action by keeping the blow molding process running without interruption for media coupling operations. The automated system performs connections during mold changes without stopping production, minimizing machine downtime while preserving operational flexibility.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3950268B1Device and method for coupling and uncoupling media couplings to and from the bottom mould
Publication Date: 2023.07.26 KRONES AG
  • EP3950268B1 patent drawingFigure 1
  • EP3950268B1 patent drawingFigure 2

AI summary

Device (1) for forming plastic preforms (10) into plastic containers (20) with a blow molding device (14) which has at least two side parts (14a, 14b) and a bottom mold (14c) which form a cavity within which the plastic preforms (10) are formed into the plastic containers (20), wherein the device has an exchange device (40) which is suitable and intended for either removing the complete blow molding device (14) or only parts (14a, 14b, 14c) of the blow molding device (14) from its blow molding carriers (16) and/or arranging them on the blow molding carriers (16),wherein the base form (14c) is arranged on a base support (19) and the base form (14c) can be connected to or separated from the base support (19) in alternating operation by a lifting movement (H) and in particular by raising and/or lowering the base support (19), and at least one first separable media connection (21) is provided between the base support (19) and the base form (14c), through which a flowable medium can be supplied to the base form (14c) and/or through which the flowable medium can be discharged from the base form (14c). According to the invention, the media connection (21) between the base support (19) and the base form (14c) can also be established and/or separated by raising and/or lowering the base support (19).