Paper Sheet Binding Apparatus Vertical Compression Alignment

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Solution Overview

Problem

Conventional paper sheet binding apparatuses often result in poorly formed stacks due to the mismatch between stacking and pressing directions, leading to collapsed or uneven bindings.

Innovation Solution

A paper sheet binding apparatus that includes a conveyance path with detection devices for sorting and processing bills, a binding mechanism with a pressing member and grippers that align and compress the bills in the stacking direction, and a binding film that is wound around the stack to secure it, preventing deformation and ensuring neat binding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If bills are moved horizontally while being compressed vertically, then the bills can be pressed between conveyor belts, but the stacking direction and pressing direction are different causing the bills to collapse and cannot be bound neatly

Engineering Contradiction:
Improvepressing forceVSAvoidbill stack form
Core Design Contradiction:
ForceVSShape

Solution Approach 1:

The patent inverts the conventional approach by changing the movement direction from horizontal to vertical. The conveyor belts now move bills vertically while applying compression force also in the vertical direction, ensuring that the pressing direction aligns with the stacking direction to prevent collapse and achieve neat binding.

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

2Device complexity

If bills are moved in horizontal direction, then conveyor mechanism can be simplified, but the pressing direction becomes perpendicular to stacking direction causing deformation

Engineering Contradiction:
Improveconveyor mechanism complexityVSAvoidbill stack stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The patent inverts the conventional horizontal movement approach by implementing vertical movement of bills on the conveyor belts. This inversion ensures that the pressing force applied by the conveyor belts acts in the same vertical direction as the stacking, maintaining bill stack stability and preventing deformation during the binding process.

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

3Productivity

If conventional binding method is used with different stacking and pressing directions, then the binding process can be completed, but the bound form collapses and binding is not neat

Engineering Contradiction:
Improvebinding speedVSAvoidbinding neatness
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The patent inverts the conventional binding approach by changing both the movement direction and pressing direction to vertical. This ensures that the compression force is applied along the stacking direction, preventing collapse and achieving neat binding while maintaining efficient binding speed through the vertical conveyor mechanism.

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

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 apparatus effectively binds multiple paper sheets in a neat and stable manner by aligning and compressing them in the stacking direction, preventing collapse and ensuring a secure binding process.

Implementation Method 1

two detection devices 102 and 102 facing with each other are provided on both sides (an upper side and a lower side in the figure) of the conveyance path 101. The two detection devices 102 detect characteristics of both sides of the bills conveyed through the conveyance path 101.

Methodology Applied
Scientific EffectOptical detection: Reflection

Implementation Method 2

a heater blade 7 is provided projectably/retractably between the two pressing blades 5 and 6. The heater blade 7 is connected to a heat source (not shown), and functions as a welding and cutting unit that welds (binds) and cuts the binding films f pressed by the two pressing blades 5 and 6 against the upper gripper 3.

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 3

The pressing member 1 presses a stacked bundle T' of a plurality of stacked bills in a stacking direction to move the stacked bundle T' in the stacking direction

Methodology Applied
Scientific EffectCompression: Compression

Data Source

PatentEP3296218B1Paper sheet binding apparatus
Publication Date: 2021.03.31 KK TOSHIBA
  • EP3296218B1 patent drawingFigure 1
  • EP3296218B1 patent drawingFigure 2~3
  • EP3296218B1 patent drawingFigure 4~5

AI summary

According to one embodiment, a paper sheet binding apparatus includes a pressing member(1) that presses object to be bound (T') with a plurality of paper sheets stacked in a stacking direction of the paper sheets to move the object to be bound in the stacking direction, a feed unit(20) that feeds a binding belt(f) in a direction orthogonal to the stacking direction ahead of a moving direction of the object to be bound, a press member(3,4) that folds the binding belt along a back end in the moving direction of the object to be bound which is pressed by the pressing member and around which the binding belt is wound while pressing the back end of the object to be bound, and a welding and cutting unit(7) that welds the folded binding belts with each other and cuts the same.