Crease Depth Indicator Stamping Device

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Solution Overview

Problem

The existing methods for checking the depth of crease lines in thermoplastics coated paperboard laminate materials are inconsistent and time-consuming, leading to inefficiencies in the production of container blanks.

Innovation Solution

A crease line forming device with a creasing cylinder and a stamping device having stamping portions at multiple levels, which marks the material with indicators away from the crease line to indicate its depth, allowing for continuous and reliable checking throughout the production process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual checking methods are used for crease line depth, then measurement can be performed, but the process is inconsistent and time-consuming

Engineering Contradiction:
Improvecrease line depth measurement consistencyVSAvoidchecking time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical measurement methods with an automated optical measurement system. The apparatus uses a light source and sensor array to automatically detect and measure crease line depth, eliminating manual intervention and achieving consistent, rapid measurements throughout production.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The measurement system is integrated directly into the creasing apparatus, allowing the equipment to automatically monitor and verify its own output. The apparatus self-diagnoses crease depth quality without requiring separate quality control personnel or manual checking processes.

Inventive Principle:
Principle #25Self-service

2Productivity

If continuous monitoring is implemented, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improveproduction efficiencyVSAvoidapparatus structure
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines the measurement system with the existing creasing apparatus structure. The light source, sensor array, and processing unit are integrated into the mechanical assembly, allowing continuous monitoring without requiring a completely separate inspection system or significant additional complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The apparatus serves multiple functions: it creates the crease lines through mechanical pressure and simultaneously monitors their depth through optical sensing. This multi-functionality allows continuous productivity improvement without proportionally increasing device complexity, as the same structure performs both forming and inspection tasks.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP2794255B1Apparatus and method for indicating the depth of a crease line in a material
Publication Date: 2019.06.19 ELOPAK SYST AG
  • EP2794255B1 patent drawingFigure 1
  • EP2794255B1 patent drawingFigure 2
  • EP2794255B1 patent drawingFigure 3

AI summary

Apparatus and method for checking the depth of a crease line in a material comprising a stamping device (4) having stamping portions (8) arranged at a plurality of levels with respect to a surface of said material, the arrangement being such that those portions (8) which contact the material mark the material with an indicator indicative of the depth of the crease line.