Filter Piece Feed Unit Alignment Mechanism

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Solution Overview

Problem

Feed units struggle to manage and align pieces of filter material with reduced longitudinal dimensions, such as cylinders of activated carbon or plastic tubes, which tend to roll out of position uncontrollably during feeding due to their small size.

Innovation Solution

A feed unit design featuring a hopper with a pickup roller and cutting means to divide rods into pieces, offsetting and aligning them into a single row using transfer rollers and drums, with adjustable spacing to maintain pieces in position, preventing uncontrolled rolling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional feed units are used for pieces of filter with reduced longitudinal dimensions, then the feeding process becomes difficult to control, but increasing the size of the pieces would eliminate the rolling problem

Engineering Contradiction:
Improvecontrol of feeding processVSAvoidmanipulation of pieces
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces an alignment device as an intermediary component between the pickup roller and the outfeed conveyor. This alignment device includes alignment elements that actively guide and position the small filter pieces, preventing them from rolling out of control while being transported. The intermediary alignment mechanism enables reliable feeding of reduced-size pieces without requiring changes to the piece dimensions themselves.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If pieces of filter with reduced longitudinal dimensions are fed, then productivity increases, but the pieces tend to roll out of position uncontrollably

Engineering Contradiction:
Improvefeeding rate of filter piecesVSAvoidposition stability of pieces
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The alignment device acts as a mediator that maintains position stability during high-speed feeding. The alignment elements physically guide the pieces through the feeding process, ensuring they remain in their designated positions even at increased feeding rates. This intermediary guidance system decouples the relationship between feeding speed and position stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent modifies the physical parameters of the feeding system by introducing alignment elements with specific geometric features designed to interact with the small filter pieces. These parameter changes in the feeding mechanism enable stable positioning of reduced-size pieces during high-speed operation.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If the longitudinal dimensions of filter pieces are reduced, then more pieces can be produced from each rod, but the pieces become difficult to manipulate and align

Engineering Contradiction:
Improvenumber of pieces per rodVSAvoidalignment of pieces
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The alignment device serves as a specialized intermediary mechanism that addresses the manipulation difficulties of small pieces. It includes alignment elements positioned to receive pieces from the pickup roller and guide them through the offsetting and alignment process. This intermediary system makes it easy to align and position reduced-size pieces without manual intervention.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Effectively feeds and aligns pieces with reduced longitudinal dimensions, ensuring they remain in position during processing, enhancing operational efficiency and preventing misalignment.

Implementation Method 1

a pickup and transfer roller provided with a plurality of suction seats. Each suction seat receives a single rod-like smokers' article and conveys it towards operating stations downstream

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP3048907B1Feed unit for feeding products with reduced longitudinal dimensions in machines of the tobacco industry
Publication Date: 2019.03.20 GD SPA
  • EP3048907B1 patent drawingFigure 1
  • EP3048907B1 patent drawingFigure 2
  • EP3048907B1 patent drawingFigure 3A~3D

AI summary

A feed unit for feeding pieces of filter with reduced longitudinal dimensions comprises a feed device (3) for feeding a first series (4) of pieces (5) of filter, each divided into at least a first and a second piece (6, 7) of filter with reduced longitudinal dimensions; each piece (5) of filter of the first series (4) is positioned according to a first spacing (p1) relative to the next piece (5); the unit (1) comprises an aligning device (19) for aligning the first and second pieces (6, 7) of filter in a second series (20) of first and second pieces (6, 7) of filter having a second spacing (p2); the device (19) comprises a device (19) for varying the spacing from the first spacing (p1) of the first series (4) to the second spacing (p2) of the second series (20) of the first and second pieces (6, 7) of filter.