Packaging Unit Alignment via Feature Detection and Gripper Rotation

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Solution Overview

Problem

Existing methods for producing packaging units with multiple items fail to align them in a desired orientation without opening the packaging, limiting the presentation of brand and advertising messages.

Innovation Solution

A device and method that align items within packaging units using detection means and a gripper head to rotate them around their longitudinal axis, ensuring a desired appearance, even after they are mechanically held together by a packaging means, allowing for external visibility of information carriers like barcodes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If items are aligned before grouping with packaging material, then alignment precision is improved, but the process complexity increases and continuous production is hindered

Engineering Contradiction:
Improvealignment precisionVSAvoidprocess complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent applies preliminary action by performing alignment after grouping but before final packaging completion. The detection device scans item features and the adjustment mechanism orients items correctly while they are still accessible, ensuring precise alignment without requiring complex pre-alignment equipment.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent inverts the conventional sequence by grouping items first with packaging material and then aligning them. This reversal allows simpler grouping mechanisms to handle the bulk material while dedicated detection and adjustment systems handle the alignment, reducing overall process complexity.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of manufacture

If items are aligned after grouping with packaging material, then process simplicity is improved, but alignment precision deteriorates

Engineering Contradiction:
Improveprocess simplicityVSAvoidalignment precision
Core Design Contradiction:
Ease of manufactureVSManufacturing precision

Solution Approach 1:

The patent introduces an intermediary detection device that scans item features (barcodes, labels) after grouping and determines the correct orientation. This intermediary system bridges the simple grouping process and the alignment requirement, enabling precise orientation through feature recognition and controlled adjustment.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces complex mechanical pre-alignment systems with a combination of detection technology (optical sensors, scanners) and controlled adjustment mechanisms. This substitution allows alignment to be achieved through sensing and actuation rather than complex mechanical guides, simplifying the overall system.

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

3Adaptability or versatility

If detection and alignment mechanisms are added to achieve desired item orientation, then product presentation is improved, but device complexity increases

Engineering Contradiction:
Improveproduct presentationVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The detection device serves multiple functions: it identifies item features, determines correct orientation, and provides data to the control system. This multi-functionality reduces the need for separate alignment measurement systems, thereby limiting the increase in device complexity while achieving versatile product presentation.

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

Solution Approach 2:

The system uses the items' own features (barcodes, labels, geometric characteristics) as alignment references. The detection device reads these self-contained features and the adjustment mechanism uses them to achieve correct orientation, eliminating the need for external alignment templates or additional reference systems.

Inventive Principle:
Principle #25Self-service

4Productivity

If continuous production process is implemented, then productivity is improved, but alignment control precision deteriorates

Engineering Contradiction:
Improveproduction speedVSAvoidalignment control precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent implements continuous production by integrating detection, control, and adjustment mechanisms that operate continuously along the production line. The detection device continuously scans item features, and the adjustment mechanisms continuously correct orientations without interrupting the flow, maintaining both productivity and precision.

Inventive Principle:
Principle #20Continuity of useful action

Solution Approach 2:

The control system receives real-time data from the detection device about item features and current orientation, processes this information, and sends adjustment commands to the alignment mechanisms. This closed-loop feedback system ensures precise alignment control even in continuous production where conditions may vary.

Inventive Principle:
Principle #23Feedback

Data Source

PatentEP3967614B1Device and method for manufacturing packaging units
Publication Date: 2024.09.18 KRONES AG
  • EP3967614B1 patent drawingFigure 1
  • EP3967614B1 patent drawingFigure 2~3
  • EP3967614B1 patent drawingFigure 4~5

AI summary

The invention relates to a device (1) and a method for producing packaging units (26). The device (1) comprises a single-part module for assembling a group comprising at least two articles (20), a packaging module (9) configured to attach a first packaging element (23) to at least two articles (20) of the group for combining and mechanically holding the at least two articles (20) together as a packaging unit (26), and an alignment module (11) configured to align at least one article (20) of the packaging unit (26) based on a detected feature (40). The alignment module (11) comprises at least one detection element (12) for detecting the feature (40) of at least one article (20) of the packaging unit (26).