Blister Tube Separating Element with Movable Circular Blade

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Solution Overview

Problem

Existing devices for processing blister tubes with multiple blister bags lack flexibility and have limited options for efficiently separating individual blister bags from the hose, leading to restricted utility and increased complexity.

Innovation Solution

A device with a guide element and a translationally movable separation element, equipped with a round blade and drive mechanisms, including a belt drive and stepper motor, allows for efficient separation of blister bags along the longitudinal axis, enabling both complete and partial separation of blister bags from the blister hose.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing devices for processing blister tubes are used, then the structure is relatively simple, but the flexibility and separation capability are limited

Engineering Contradiction:
Improveflexibility and separation capabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The separating element is divided into multiple independent circular blades arranged along the longitudinal axis, allowing selective activation of different blade sections to achieve various separation patterns (complete separation, partial separation, pre-perforation) without requiring multiple complete devices

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The separating element is designed to be translationally movable along the guide element, enabling dynamic adjustment of the cutting position and separation extent. The first drive device allows the separating element to move back and forth, providing flexible control over the separation process adaptability

Inventive Principle:
Principle #15Dynamics

2Productivity

If manual or external driving of the separating element is used, then the device structure is simpler, but the automation and efficiency are reduced

Engineering Contradiction:
Improveautomation and efficiencyVSAvoiddrive mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The first drive device is integrated into the device structure, enabling the separating element to automatically move along the guide element without external manual intervention. The system serves itself by incorporating the driving mechanism within the device, achieving automated separation operations

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The first drive device combines multiple functions (driving the separating element translationally, controlling blade rotation, and coordinating separation operations) into a single integrated mechanism, reducing overall system complexity while maintaining high automation capability

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a circular blade is used for separation, then the reliability of separation is improved, but the device complexity increases

Engineering Contradiction:
Improveseparation reliabilityVSAvoidblade mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Circular blades are used instead of linear cutting edges, providing continuous contact with the blister tube material during rotation. This curved geometry ensures reliable cutting action and complete separation, as the rotating circular blade effectively shears through the material along its entire circumference

Inventive Principle:
Principle #14Spheroidality (Curvature)

Solution Approach 2:

The circular blade rotates periodically to perform the cutting action, with the rotation driven by the first drive device. This periodic rotational motion ensures consistent and reliable separation, as the blade repeatedly engages with the blister tube material in a controlled cyclic manner

Inventive Principle:
Principle #19Periodic 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

The device provides flexible operation, allowing for reliable and precise separation of blister bags with reduced complexity, enabling efficient cutting and separation of blister tubes along their entire width, and facilitating easier manual opening of blister bags.

Implementation Method 1

a separating element (120) arranged to be translationally movable on the guide element (110) for at least partially cutting through the blister tube (200)

Methodology Applied
Scientific EffectMechanical shearing: Mechanical Force

Implementation Method 2

the first drive device comprises a drive belt and a belt drive that drives the drive belt

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

the belt drive comprises an electric motor, in particular a stepper motor, and a gearbox

Methodology Applied
Scientific EffectElectromagnetic conversion: Electromagnetic Induction

Implementation Method 4

the belt drive comprises an electric motor, in particular a stepper motor, and a gearbox

Methodology Applied
Scientific EffectMechanical advantage: Gear

Data Source

PatentEP3569218B1Device for processing a blister tube with a plurality of blister bags and method for operating the same
Publication Date: 2022.11.30 JDM INNOVATION
  • EP3569218B1 patent drawingFigure 1~3
  • EP3569218B1 patent drawingFigure 4~5
  • EP3569218B1 patent drawingFigure 6~9

AI summary

The invention relates to a device for processing a blister tube comprising several blister bags, in particular for separating blister bags, comprising a guide element and a separating element arranged translationally movable on the guide element for at least partially cutting through the blister tube.