Rotary Embossing Tool for Braille Printing on Folder-Gluer

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Solution Overview

Problem

Existing methods for printing Braille on cardboard blanks are inefficient due to long adjustment times for embossing tools, reduced productivity, difficulty in separating embossed blanks, and limited flexibility in message placement, especially near edges or corners.

Innovation Solution

A device integrated with a folder-gluer that uses a single rotary embossing tool mounted in the folder-gluer, allowing for easier adjustment and operation without affecting overall productivity, facilitating blank separation, and enabling Braille printing anywhere on the blank, including near edges or corners.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If embossing tools are mounted on a platen press, then Braille printing can be performed, but adjustment time increases and productivity decreases

Engineering Contradiction:
ImproveBraille printing capabilityVSAvoidoverall productivity
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The embossing tool is extracted from the platen press and mounted on the folder-gluer instead. This eliminates the need for lengthy adjustment operations on the platen press while maintaining Braille printing capability. The folder-gluer's continuous operation mode ensures productivity is not compromised.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The embossing tool is designed with adjustable components that allow quick adaptation to different Braille configurations. The tool can be rapidly repositioned and reconfigured on the folder-gluer without requiring extensive adjustment time, enabling dynamic adaptation to various printing needs.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If multiple embossing tools are mounted on the same platen, then multiple Braille messages can be printed, but adjustment time and complexity increase

Engineering Contradiction:
Improvemultiple Braille message capabilityVSAvoidtool assembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Instead of mounting multiple embossing tools on the same platen, the invention uses a single embossing tool that is sequentially repositioned to different locations on the folder-gluer. This segmented approach simplifies the device while maintaining the capability to print multiple Braille messages at different positions on the packaging.

Inventive Principle:
Principle #1Segmentation

3Productivity

If embossed blanks are stacked for feeding, then continuous production is enabled, but protuberances fit together and become difficult to separate

Engineering Contradiction:
Improvecontinuous productionVSAvoidblank separation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The embossing operation is performed after the blanks are separated and fed individually through the folder-gluer, rather than embossing before stacking. This preliminary timing prevents the protuberances from fitting together in the stack, making separation easy while maintaining continuous production capability.

Inventive Principle:
Principle #10Preliminary action

4Productivity

If embossed blanks are fed through the folder-gluer, then continuous processing is achieved, but protuberances are crushed and readability decreases

Engineering Contradiction:
Improvecontinuous processingVSAvoidBraille readability
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

The embossing operation is performed at the appropriate stage in the continuous processing line, after blanks are individually fed and positioned. This timing ensures that the protuberances are created when they will not be subjected to crushing forces from stacking, thereby maintaining Braille readability while achieving continuous processing.

Inventive Principle:
Principle #10Preliminary action

5Stability of the object's composition

If tools are held by supports with wheelbase, then structural stability is provided, but message placement flexibility is limited

Engineering Contradiction:
Improvetool support stabilityVSAvoidmessage placement flexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The embossing tool is mounted on the folder-gluer with adjustable positioning mechanisms that allow it to be dynamically repositioned to any location on the blank. This dynamic mounting system maintains structural stability during operation while providing complete flexibility in message placement, including near edges and corners.

Inventive Principle:
Principle #15Dynamics

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

Improves overall productivity by reducing adjustment time, enhances Braille message readability by preventing protuberance crushing, and offers greater flexibility in message placement without compromising productivity.

Implementation Method 1

printing Braille characters on a cardboard blank by means of a rotary embossing tool

Methodology Applied
Scientific EffectEmbossing: Deformation

Data Source

PatentEP1932657B1Device for printing in Braille
Publication Date: 2010.06.23 BOBST SA SERVICE DES BREVETS
  • EP1932657B1 patent drawingFigure 1
  • EP1932657B1 patent drawingFigure 2
  • EP1932657B1 patent drawingFigure 3

AI summary

Device for printing braille characters on cardboard cutouts moving through a folder-gluer along a substantially planar trajectory (F) comprising rotating embossing tools (5, 6) carried by two respective parallel shafts (7, 8) mounted for rotation on either side of the plane of said trajectory (F) to print said braille characters on said cutouts during their movement through said folder-gluer.