Capsule Insertion Wheel Cam Mechanism for Filter Tow

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Solution Overview

Problem

Existing methods for imparting flavor to cigarette smoke through filter capsules are inefficient in ensuring consistent and uniform distribution of flavorings within the filter tow, leading to variations in smoking experience.

Innovation Solution

An apparatus comprising a tow processing unit coupled with a capsule insertion unit and a filter rod making unit, featuring a feeder wheel with radial grooves and an insertion wheel with recesses, synchronized by cam mechanisms to ensure precise and regular insertion of capsules into the filter tow, utilizing an endless belt and vacuum assistance for efficient capsule distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If capsules are inserted into filter tows using existing methods, then flavor can be imparted to cigarette smoke, but the distribution of flavorings is inconsistent and non-uniform

Engineering Contradiction:
Improveuniformity of capsule distributionVSAvoidconsistency of flavor release
Core Design Contradiction:
Manufacturing precisionVSReliability

Solution Approach 1:

The insertion mechanism is divided into multiple functional components: a feeder wheel with radial grooves for capsule storage and positioning, an insertion wheel with recesses for capsule reception, and cam mechanisms for synchronized actuation. This segmentation allows precise control over capsule placement at specific intervals along the filter tow, ensuring uniform distribution.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Capsules are pre-positioned in radial grooves on the feeder wheel before insertion, and the cam mechanisms are pre-configured to actuate pins at specific points along the circumference. This preliminary arrangement ensures that capsules are ready for immediate insertion at the correct positions, achieving consistent and uniform distribution without requiring complex real-time control.

Inventive Principle:
Principle #10Preliminary action

2Manufacturing precision

If a complex capsule insertion mechanism is used, then capsule distribution can be improved, but the device complexity increases

Engineering Contradiction:
Improveprecision of capsule insertionVSAvoidnumber of moving parts
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The feeder wheel and insertion wheel are merged into a single integrated assembly that rotates together, sharing a common rotational axis. The cam mechanisms are integrated into the wheel structure itself rather than being separate external components. This merging reduces the number of independent moving parts while maintaining precise capsule insertion capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The radial grooves on the feeder wheel serve multiple functions: they store capsules, position them for insertion, and facilitate their transfer to the insertion wheel. The recesses on the insertion wheel similarly serve as both storage and insertion points. This multi-functionality reduces the need for separate components, simplifying the overall device while maintaining precision.

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

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

Ensures consistent and uniform embedding of flavor capsules within the filter tow, enhancing the smoking experience by providing a controlled and regular release of flavorings, improving the overall quality of the smoking experience.

Implementation Method 1

a stationary cam wheel configured to actuate the pins at desired points along the circumference of the cam wheel

Methodology Applied
Scientific EffectCam mechanism: Cam

Implementation Method 2

utilizing an endless belt and vacuum assistance for efficient capsule distribution

Methodology Applied
Scientific EffectVacuum: Vacuum

Data Source

PatentEP2473071B1Apparatus and method for insertion of capsules into filter tows
Publication Date: 2016.05.04 AIGER GROUP
  • EP2473071B1 patent drawingFigure 1
  • EP2473071B1 patent drawingFigure 2
  • EP2473071B1 patent drawingFigure 3

AI summary

An apparatus for insertion of capsules into cigarette filter tows (120) is disclosed. The apparatus may include a tow processing unit (102), a capsule insertion unit (200) and a filter rod making unit (122). The capsule insertion unit (200) may include a hopper (202), a belt (204), an inlet pipe (206), a capsule feeder wheel (210) and a capsule insertion wheel (220).