Film Tab Alignment via Suction and Vision

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Solution Overview

Problem

Existing devices for aligning the film flap of sterile packaging struggle with precise alignment due to undefined folding and memory effects of the film, making it difficult for automated systems to grasp and process, especially after prolonged storage.

Innovation Solution

A device featuring a structurally simple suction system with movable suction heads that can align the film flap independently of its folding type, allowing for universal alignment and subsequent processing, including cutting, without complex mechanical constructions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If complex mechanical constructions are used to align the film flap, then alignment precision may improve, but device complexity and susceptibility to faults increase

Engineering Contradiction:
Improvealignment precisionVSAvoiddevice complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex mechanical alignment systems with a vision-based optical system. Cameras capture images of the film flap, and image processing algorithms automatically determine the flap's position and orientation, eliminating the need for complex mechanical sensors and actuators while maintaining high alignment precision.

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

Solution Approach 2:

The patent creates a digital copy of the film flap's physical state through image capture. The visual information is copied into digital image data, which can be processed and analyzed without physically touching or mechanically measuring the film flap, thereby simplifying the alignment system.

Inventive Principle:
Principle #26Copying

2Productivity

If automated alignment systems are implemented, then productivity increases, but susceptibility to faults increases due to complex mechanical constructions

Engineering Contradiction:
ImproveproductivityVSAvoidfault resistance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent replaces fault-prone mechanical alignment mechanisms with a software-based image processing system. This substitution maintains automated operation for high productivity while reducing mechanical wear, misalignment, and component failure, thereby improving system reliability and fault resistance.

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

Solution Approach 2:

The system performs self-alignment through automated image capture and processing. The vision system automatically detects the film flap position, calculates alignment parameters, and guides the positioning without requiring manual intervention or complex feedback mechanisms, reducing points of failure.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If mechanical alignment devices are used, then alignment can be achieved, but the structure becomes complex and more prone to errors

Engineering Contradiction:
Improvealignment capabilityVSAvoidstructural complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces mechanical alignment devices with an optical-vision-based system that captures images of the film flap and uses image processing to determine alignment. This approach maintains ease of operation through automated detection while dramatically reducing structural complexity by eliminating mechanical sensors, contact points, and adjustment mechanisms.

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

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

Facilitates efficient and fault-resistant alignment and processing of the film flap, enabling reliable automated handling and opening of sterile packaging without manual intervention.

Implementation Method 1

Device for aligning the film tab (24) of a packaging (12), in particular of a sterile packaging (12), with a suction device (30) through which the film tab (24) can be sucked

Methodology Applied
Scientific EffectSuction: Suction

Data Source

PatentEP4197925A1Device for aligning the film tab of a package
Publication Date: 2023.06.21 HARRO HOFLIGER VERPACKUNGSMASCHEN
  • EP4197925A1 patent drawingFigure 1~3
  • EP4197925A1 patent drawingFigure 4~6
  • EP4197925A1 patent drawing

AI summary

The invention relates to a device for aligning the foil flap (24) of a package, in particular a sterile package. According to the invention, the device has a suction device (30) by which the foil flap (24) of the package can be drawn in and thus aligned.