Accumulation Roll Chain Transition Unit Design

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Solution Overview

Problem

In the beverage and packaging industry, the transition area between accumulation roller chain conveyors leads to significant disruptions and difficulties in assembly due to a large gap, causing articles to tip over and complicating the transfer process.

Innovation Solution

A transport unit with a reduced transition area is designed, featuring two adjoining endless conveyors with a transition unit comprising fewer rollers and a smaller frame structure, allowing for a continuous transport plane and minimizing the gap between conveyors, thereby facilitating smooth article transfer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a transition area is formed between two endless conveyors, then articles can be transferred between conveyors, but the gap causes articles to tip over and creates disruptions

Engineering Contradiction:
Improvearticle transferVSAvoidarticle stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The transition unit creates an essentially level transport path by arranging rollers at specific positions and orientations, ensuring that the transport surface remains at a constant height level across the transition area. This eliminates the gap-induced instability that causes articles to tip over, while still allowing seamless transfer between conveyors.

Inventive Principle:
Principle #12Equipotentiality

2Ease of operation

If a standard transition unit with multiple rollers and frame parts is used, then article transfer is enabled, but assembly becomes complicated and the transition area width increases

Engineering Contradiction:
Improvearticle transferVSAvoidframe structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent removes unnecessary frame parts from the transition unit design, retaining only the essential components (rollers and minimal supporting structure) needed to enable article transfer. This extraction of non-essential elements simplifies assembly while maintaining the core functionality of bridging the gap between conveyors.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The transition unit is designed as a modular assembly of discrete rollers that can be independently positioned and assembled. This segmentation allows for simpler construction and maintenance compared to a monolithic frame structure, reducing overall device complexity while preserving the transition function.

Inventive Principle:
Principle #1Segmentation

3Productivity

If the transition area width is reduced, then assembly is simplified and disruptions are minimized, but the rollers must be precisely arranged to maintain a continuous transport plane

Engineering Contradiction:
Improveassembly speedVSAvoidroller arrangement
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

By designing the roller arrangement to create an essentially level transport path, the patent reduces the sensitivity to positioning variations. The level path configuration naturally compensates for minor alignment deviations, allowing for faster assembly while maintaining the continuous transport plane needed for smooth article transfer.

Inventive Principle:
Principle #12Equipotentiality

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 solution reduces the transition area width by up to 25%, minimizing disruptions and simplifying the assembly process by reducing the number of rollers and frame parts, ensuring a stable and uninterrupted transfer of articles between conveyors.

Implementation Method 1

A transition unit (20) comprising a plurality of rollers (32) is arranged between the endless conveyors (12, 14)

Methodology Applied
Scientific EffectRoller: Roller

Data Source

PatentEP2314529B1Transport unit with accumulation roll chain
Publication Date: 2013.05.29 KRONES AG
  • EP2314529B1 patent drawingFigure 1A~1B
  • EP2314529B1 patent drawingFigure 2~3
  • EP2314529B1 patent drawingFigure 4

AI summary

The unit has two endless conveyors (12, 14), which are formed as a bottleneck roll chain (100) and are arranged together in such a manner that no or only a transverse frame section (19) is provided between the two endless conveyors. Dimension of deflection rollers (22, 24) of the endless conveyors at opposite ends of the endless conveyors is selected in such a manner that dimension of running rollers (32) of a transfer unit (20) is reduced around the running rollers. The transfer unit is arranged on a separate carrier arrangement. The running rollers comprise dimension of 50 mm.