Planar Motor Carriers for Flexible Package Format Handling

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Solution Overview

Problem

Existing packaging machines struggle to handle packages formed from multilayer packaging material in a flexible and scalable manner, particularly when filled with pourable products, requiring time-consuming modifications for different formats.

Innovation Solution

A conveying apparatus with carriers and planar motors that allow for precise control of package movement, using retaining devices and control units to manage package transfer between conveyors, enabling flexible and scalable handling without format-specific adjustments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional conveying mechanisms are used in packaging machines, then packages can be transported, but the system lacks flexibility and requires time-consuming modifications for different package formats

Engineering Contradiction:
Improveflexibility in handling different package formatsVSAvoidtime-consuming modifications for format changes
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent employs dynamic elements including movable carriers with adjustable positions, variable speed conveyors that can adapt to different package dimensions, and programmable control systems that enable rapid reconfiguration for different package formats without physical modifications to the machinery

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes operational parameters such as carrier speed, conveyor speed, and positioning coordinates through software control to accommodate different package formats, eliminating the need for mechanical modifications and reducing changeover time

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If packages are handled by conventional conveying systems, then transport is achieved, but the handling is not gentle enough for filled packages

Engineering Contradiction:
Improvegentle handling of filled packagesVSAvoidsafe transfer of packages
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent replaces harsh mechanical contact-based conveying with electromagnetic actuators and planar motors that provide precise, contactless, or minimal-contact movement, enabling gentle handling while maintaining reliable and accurate package transfer

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

Solution Approach 2:

The system introduces intermediate carriers and transfer mechanisms that act as mediators between different conveying sections, providing cushioned support and controlled transfer for filled packages to prevent damage during handling

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If scalable package handling is implemented, then flexibility improves, but system complexity increases

Engineering Contradiction:
Improvescalable package handlingVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent implements universal carriers and conveyors that can handle multiple package formats and types through programmable control, allowing a single system to perform multiple functions without requiring separate specialized mechanisms for each package type

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

Solution Approach 2:

The system incorporates automatic package detection, identification, and routing capabilities that enable the conveying system to self-adjust to different package formats without manual intervention, reducing operational complexity while maintaining scalability

Inventive Principle:
Principle #25Self-service

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

Enables flexible and efficient handling of packages of varying formats with minimal modifications, ensuring safe and gentle transfer through synchronized carrier movements and electromagnetic control.

Implementation Method 1

a planar motor (15) configured to selectively and independently move each one of the carriers (14)

Methodology Applied
Scientific EffectElectromagnetic force: Lorentz Force

Data Source

PatentEP4310027B1Conveying apparatus for a packaging machine and packaging machine having a conveying apparatus
Publication Date: 2025.08.20 TETRA LAVAL HOLDINGS & FINANCE SA
  • EP4310027B1 patent drawingFigure 1
  • EP4310027B1 patent drawingFigure 2
  • EP4310027B1 patent drawingFigure 3

AI summary

There is described a conveying apparatus (11) comprising a plurality of carriers (14), a planar motor (15) for selectively and independently moving the carriers (14), an inlet conveyor (16), an outlet conveyor (18) and a control device (26) for controlling each retaining device (25) between a respective open configuration and a respective retaining configuration. The inlet conveyor (16) and the outlet conveyor (18) are configured to advance each package (2) in a manner spaced apart from the planar motor (15) and such that a respective interspace (27) between the planar motor (15) and the package (2) allows of interposing a respective support platform (24) of each carrier (14) between the planar motor (15) and the respective package (2).