Offset Sliding Drum for Tobacco Filter Rod Alignment

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Solution Overview

Problem

The tobacco processing industry faces challenges in ensuring process reliability during the cross-axial conveyance of rod-shaped articles, such as filter rods and filter pieces, due to design complexity and misalignment issues in existing drum arrangements.

Innovation Solution

A drum arrangement featuring two sliding drums with non-aligned receiving troughs, allowing for longitudinal axial displacement and transfer of rod-shaped articles, ensuring secure guidance and alignment through mechanical barriers and air displacement, thereby enhancing process reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single sliding drum with receiving troughs is used for conveying rod-shaped articles, then the device complexity is low, but the process reliability deteriorates due to misalignment issues

Engineering Contradiction:
Improveprocess reliabilityVSAvoiddrum arrangement complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The conveying system is divided into two separate sliding drums instead of using a single drum. Each drum has receiving troughs that are offset from the other, allowing independent control and alignment of each drum to prevent misalignment issues and improve process reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The receiving troughs on the two sliding drums are arranged in different circumferential positions (offset in the rotational dimension), creating a three-dimensional arrangement that allows both drums to contribute to conveying while maintaining proper alignment of rod-shaped articles.

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

2Manufacturing precision

If receiving troughs are aligned in a single row on a conveying drum, then the device complexity is low, but the manufacturing precision deteriorates due to alignment errors

Engineering Contradiction:
Improvealignment precisionVSAvoiddrum structure complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The receiving troughs are segmented into two separate rows on different drums rather than being arranged in a single continuous row. This segmentation allows each row to be independently positioned and aligned, improving manufacturing precision while distributing the structural complexity across two separate components.

Inventive Principle:
Principle #1Segmentation

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

The drum arrangement significantly increases process reliability by ensuring accurate alignment and directionality of rod-shaped articles during conveyance, preventing misalignment and facilitating efficient transfer in the tobacco processing industry.

Implementation Method 1

allowing for longitudinal axial displacement and transfer of rod-shaped articles, ensuring secure guidance and alignment through mechanical barriers and air displacement

Methodology Applied
Scientific EffectAir displacement:

Data Source

PatentEP3141134B1Transfer drum for the tobacco processing industry
Publication Date: 2021.09.29 KORBER TECHNOLOGIES GMBH
  • EP3141134B1 patent drawingFigure 1a~1b
  • EP3141134B1 patent drawingFigure 2a~2b
  • EP3141134B1 patent drawingFigure 3

AI summary

The invention relates, among other things, to a sliding drum (20) for the tobacco processing industry with receiving recesses (21, 22) for rod-shaped articles of the tobacco processing industry, in particular filter rods and/or filter pieces and/or segmented products, wherein the sliding drum (20) is configured such that, during or when conveying the rod-shaped articles in a transverse axial direction, the rod-shaped articles are longitudinally displaceable or are displaced in the receiving recesses (21, 22). The sliding drum (20) is characterized in that the sliding drum (20) has two adjacent rows (R1, R2) of receiving recesses (21, 22) arranged transversely one behind the other in the circumferential direction, wherein the receiving recesses (21) of a first row (R1) of receiving recesses are arranged or aligned non-aligned with the receiving recesses (22) of the second row (R2) of receiving recesses.