Air Transport Coupling for Ordered Preform-to-Bottle Transfer

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Solution Overview

Problem

Existing manufacturing processes for transforming preforms into containers are logistically complex, expensive, prone to disruption, and suffer from damage and microbial contamination due to bulk handling, requiring complex sorting equipment and long transport times that affect quality and hygiene.

Innovation Solution

A container treatment plant integrating a manufacturing machine, distribution device, and air conveyor that receives and transfers preforms in a two-dimensional matrix arrangement, eliminating the need for bulk handling and sorting, ensuring orderly and aseptic processing directly at the same location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If preforms are manufactured and stored as bulk material at a separate location, then production flexibility is improved, but handling complexity and risk of damage and contamination increase

Engineering Contradiction:
Improveproduction flexibilityVSAvoidhandling complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines the preform manufacturing location with the container production location, eliminating separate bulk storage and handling. The injection molding machine and stretch blow molding machine are integrated at the same site, with direct transfer of preforms between processes, removing the need for complex bulk material handling and sorting equipment.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent introduces an air conveyor as an intermediary transport mechanism that directly conveys preforms from the injection molding machine to the stretch blow molding machine. This intermediary system enables seamless transfer without bulk handling, maintaining production flexibility while eliminating damage and contamination risks.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of energy

If preforms are transported and stored as bulk material, then logistics cost is reduced, but quality and hygiene deteriorate due to damage and microbial contamination

Engineering Contradiction:
Improvelogistics costVSAvoiddamage and contamination
Core Design Contradiction:
Loss of energyVSObject-affected harmful factors

Solution Approach 1:

The patent establishes continuous production where preforms are manufactured and immediately processed into containers without interruption. The air conveyor enables continuous transfer of preforms directly between machines, eliminating storage and rehandling operations that cause damage and contamination, while maintaining cost-effective logistics.

Inventive Principle:
Principle #20Continuity of useful action

3Ease of operation

If complex sorting equipment is used to sort bulk preforms, then organization of preform flow is improved, but device complexity and susceptibility to malfunctions increase

Engineering Contradiction:
Improveorganization of preform flowVSAvoidsorting equipment complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the sorting equipment from the production system by implementing ordered preform transfer directly from injection molding to stretch blow molding. The air conveyor system naturally maintains preform organization without requiring separate sorting mechanisms, simplifying the overall device while improving operational ease.

Inventive Principle:
Principle #2Taking out (Extraction)

4Volume of stationary object

If preforms are handled in bulk, then storage space efficiency is improved, but productivity decreases due to time-consuming sorting and reorganization

Engineering Contradiction:
Improvestorage space efficiencyVSAvoidproduction efficiency
Core Design Contradiction:
Volume of stationary objectVSProductivity

Solution Approach 1:

The patent applies preliminary action by organizing preforms in a structured manner during injection molding, with preforms arranged in a matrix pattern on the injection mold. This preliminary organization allows direct transfer to the stretch blow molding machine without subsequent sorting, eliminating time losses while maintaining space-efficient handling.

Inventive Principle:
Principle #10Preliminary action

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 significantly reduces transport and storage costs, minimizes damage and contamination, enhances traceability, improves quality and hygiene, and simplifies logistics by directly linking preform production with container manufacturing, enabling aseptic production and efficient use of manufacturing heat.

Implementation Method 1

at least one air conveyor (403) for the orderly feeding of the preforms produced by the manufacturing machine (401) to the at least one unit (404) for manufacturing containers from the preforms

Methodology Applied
Scientific EffectCompressed air: Gas Compressor

Data Source

PatentEP4494838B1Coupling of production machine and stretch blow molding machine by means of air transport
Publication Date: 2026.02.25 KRONES AG
  • EP4494838B1 patent drawingFigure 1a
  • EP4494838B1 patent drawingFigure 1b
  • EP4494838B1 patent drawingFigure 1c

AI summary

The invention relates to a container treatment plant (400) for the production of containers, comprising: a production machine (401), e.g. an injection molding machine for producing preforms, at least one unit (404) for producing containers from the preforms, at least one distribution device (402) for the orderly distribution of the preforms produced by the production machine, at least one air transporter (403) for the orderly feeding of the preforms produced by the production machine (401) to the at least one unit (404) for the production of containers from the preforms, wherein the distribution device (402) is configured to receive a plurality of the preforms produced by the production machine (401) in an orderly manner in the form of a two-dimensional matrix arrangement and to transfer them in an orderly manner to the air transporter (403).