Bidirectional Conveyor Packaging System for Simultaneous Protective Element Insertion

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Solution Overview

Problem

Conventional packaging systems for folding boxes require multiple passes through a circular conveyor line for inserting protective elements, leading to long processing times and large footprints, especially in smaller systems.

Innovation Solution

A bidirectional conveyor line system with a first station for folding boxes and a second station for protective elements, allowing simultaneous insertion of protective elements at infeed and outfeed routes, and a robotic arm for flexible positioning of protective elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a circular conveyor line is used for inserting protective elements, then the system can handle multiple insertion points, but the packaging time increases due to multiple passes through the conveyor line

Engineering Contradiction:
Improvecapability to insert protective elements at multiple positionsVSAvoidpackaging time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system divides the protective element insertion process into two independent segments: a first insertion device for inserting protective elements at the first position, and a second insertion device for inserting protective elements at the second position. This segmentation allows simultaneous operation at both positions, eliminating the need for multiple conveyor passes and reducing packaging time while maintaining the capability to handle multiple insertion points.

Inventive Principle:
Principle #1Segmentation

2Adaptability or versatility

If a circular conveyor line is used for inserting protective elements, then the system can accommodate multiple filling stations, but the system footprint increases

Engineering Contradiction:
Improvenumber of filling stationsVSAvoidsystem footprint
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The system transitions from a circular conveyor layout (occupying large planar space) to a linear conveyor arrangement with filling stations positioned along the same line. The conveyor line extends in one dimension, and filling stations are arranged sequentially along this dimension, allowing multiple insertion points without requiring the large circular footprint of conventional systems.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Reliability

If the conveyor line runs through several times for multiple insert sheets, then all protective elements can be inserted, but the processing speed decreases

Engineering Contradiction:
Improvecompleteness of protective element insertionVSAvoidprocessing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The system enables continuous protective element insertion by having the conveyor line transport outer packaging continuously through the system while the first and second insertion devices operate simultaneously at different positions. This eliminates the need to stop and reverse the conveyor for multiple passes, maintaining continuous motion and maximizing processing speed while ensuring all protective elements are inserted.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP3995405B1Packaging device and packaging method
Publication Date: 2025.07.30 MASTERWORK GROUP CO LTD
  • EP3995405B1 patent drawingFigure 1
  • EP3995405B1 patent drawingFigure 2A~2B

AI summary

The present invention relates to a packaging system or a packaging method for packing folding cartons into outer packaging 30 for transport and simultaneously protecting them from transport damage by inserting suitable protective elements. The outer packaging 30 can be conveyed back and forth on a bidirectionally controllable conveyor 14 between a first filling station 31 for inserting the flat items to be packaged and a second filling station 32 for inserting the protective elements. This allows for a reduction in packaging times, costs, and space requirements compared to conventional ring conveyors.