Paper Sheet Stacking Unit with Magnet Coupling for Alignment

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Solution Overview

Problem

Conventional paper sheet processing devices face challenges in aligning the ends of stacked banknotes neatly, leading to difficulties in handling and potential collapse during removal, and require separate binding mechanisms, increasing device size and cost.

Innovation Solution

A paper sheet processing device with a stacking unit featuring a vertically movable placing portion and a magnet coupling system that allows for tidy stacking and easy removal of processed paper sheets without binding, using a storage box with a slit for magnet coupling and an energizing member to maintain alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If banknotes are sequentially loaded into storage from a slot on the upper side, then processing capacity is maintained, but drop positions vary and ends cannot be aligned tidily

Engineering Contradiction:
Improveprocessing capacityVSAvoidalignment precision
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent inverts the conventional stacking approach by having banknotes pass through the bottom wall rather than being deposited from the top. The transport mechanism carries banknotes horizontally through the bottom wall into the storage space, allowing precise control of drop position and ensuring all banknotes align their ends tidily at the front surface.

Inventive Principle:
Principle #13The other way round (Inversion)

2Ease of operation

If banknotes are stacked without binding, then handling is simpler, but bundles collapse when removed by hand

Engineering Contradiction:
Improvehandling simplicityVSAvoidbundle stability
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

The patent employs the front surface of the storage box as a rigid support structure that maintains the aligned state of stacked banknotes. The box's front surface acts as a natural support that prevents collapse during stacking and removal, eliminating the need for additional binding mechanisms while maintaining bundle integrity.

Inventive Principle:
Principle #30Flexible shells and thin films

3Stability of the object's composition

If a separate binding mechanism is added, then bundle stability improves, but device size and cost increase

Engineering Contradiction:
Improvebundle stabilityVSAvoiddevice structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The patent merges the stacking and support functions into the storage box structure itself. The front surface of the storage box serves dual purposes: it is both the structural element of the storage unit and the support surface that maintains banknote alignment. This integration eliminates the need for separate binding mechanisms, reducing device complexity and cost.

Inventive Principle:
Principle #5Merging (Combining)

4Manufacturing precision

If operators manually align banknote ends, then alignment precision improves, but operation time increases

Engineering Contradiction:
Improvealignment precisionVSAvoidoperation time
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent implements preliminary alignment action through the transport mechanism, which automatically positions and orients banknotes before they enter the storage space. The horizontal transport through the bottom wall ensures that banknotes are already aligned with their ends facing the front surface, eliminating the need for manual alignment operations and reducing operation time.

Inventive Principle:
Principle #10Preliminary action

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

Enables easy and tidy removal of stacked paper sheets without binding, reducing the risk of collapse and eliminating the need for a separate binding mechanism, thus simplifying the device and reducing costs.

Implementation Method 1

a magnet coupling system that allows for tidy stacking and easy removal of processed paper sheets without binding

Methodology Applied
Scientific EffectMagnet coupling: Magnetism

Data Source

PatentEP3569532B1Paper sheet processing device
Publication Date: 2021.10.20 JAPAN CASH MASCH CO LTD
  • EP3569532B1 patent drawingFigure 1
  • EP3569532B1 patent drawingFigure 2
  • EP3569532B1 patent drawingFigure 3

AI summary

Provided is a paper sheet processing device in which a plurality of paper sheets stacked after processing can be easily taken out in a state where ends thereof are aligned, without binding the paper sheets. The paper sheet processing device includes a stacking unit 6 that stacks therein the paper sheets after being processed by a processing unit 4. The stacking unit 6 includes a stacking unit main body 7, and a storage box 9 that can be taken in and out of a box storage space 7a of the stacking unit main body 7.