Radial Transfer Mechanism for Compact Cigarette Packaging

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Solution Overview

Problem

Existing packaging machines for cigarettes are bulky and structurally complex, leading to increased costs and space requirements.

Innovation Solution

The packaging machine incorporates transfer means that allow groups of cigarettes wrapped in inner sheets to be transferred radially with respect to the wrapping path, reducing transverse bulk and eliminating the need for separate wrapping conveyors, thereby making the machine more compact and simpler in design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If traditional packaging machines use separate wrapping conveyors positioned downstream and below the forming drum, then the packaging process can be completed, but the machine becomes bulky and structurally complex

Engineering Contradiction:
Improvestructural simplicityVSAvoidmachine bulk
Core Design Contradiction:
Ease of manufactureVSVolume of stationary object

Solution Approach 1:

The patent combines the forming drum and wrapping conveyor into a single integrated unit. The wrapping conveyor is positioned coaxially with the forming drum and receives wrapped groups directly from the drum's tubular cells, eliminating the need for separate downstream conveying systems. This merging of functions reduces both structural complexity and machine bulk while maintaining efficient packaging operations.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If multiple separate conveyors are used for wrapping and transferring cigarettes, then packaging functionality is achieved, but device complexity increases

Engineering Contradiction:
Improvepackaging functionalityVSAvoidnumber of separate conveyors
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The wrapping conveyor serves multiple functions: it receives wrapped cigarette groups from the forming drum, transports them through the wrapping process, and delivers them to the transfer conveyor. This multi-functional design eliminates the need for separate dedicated conveyors for each stage, reducing device complexity while maintaining complete packaging functionality.

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

Solution Approach 2:

The patent segments the packaging process into distinct functional zones within a compact arrangement: the forming drum with tubular cells for initial wrapping, the coaxially positioned wrapping conveyor for intermediate processing, and the transfer conveyor for final delivery. This segmentation allows each component to perform its specific function efficiently while minimizing overall system complexity.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2528824B2Packaging machine and method for packaging smoking articles
Publication Date: 2019.04.03 GIMA TT SPA
  • EP2528824B2 patent drawingFigure 1
  • EP2528824B2 patent drawingFigure 2
  • EP2528824B2 patent drawingFigure 3

AI summary

A packaging machine (1) for forming packets (3) of smoking articles (2), in particular cigarettes, comprises movement means for moving groups of smoking articles at least partially wrapped by an inner wrapping sheet (4), along a movement direction, a wrapping wheel (13) to receive the groups of smoking articles wrapped by the inner wrapping sheet (4) and to move them along a substantially circular wrapping path (P), and transfer means (22) to transfer the groups of smoking articles wrapped by the inner wrapping sheet (4) from the movement means to the wrapping wheel. The transfer means (22) transfer the groups of smoking articles wrapped by the inner wrapping sheet (4) along a transfer direction (T) radial with respect to the wrapping path (P), in order to reduce the bulk of the packaging machine (1).