Ultrasonic Cutting Blade Automation for Container Safety

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Solution Overview

Problem

Manual cutting of large volumes of containers in commercial facilities is time-consuming and hazardous, leading to tool wear and increased operational costs due to shearing motions that shorten the lifespan of cutting tools.

Innovation Solution

An apparatus using an ultrasonic cutting blade with a press actuator and conveyor system to automate the cutting process by positioning the blade in contact with the container and vibrating it ultrasonically to penetrate the surface, reducing the need for shearing motions and extending tool lifespan.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual cutting tools (handheld ultrasonic and pneumatic cutters) are used to open containers, then cutting operation can be performed, but the operation is time-consuming and hazardous due to possible cut or laceration injuries

Engineering Contradiction:
ImprovesafetyVSAvoidcutting speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent replaces manual mechanical cutting operations with an automated ultrasonic cutting system. The ultrasonic blade vibrates at high frequency to cut container surfaces, eliminating the need for manual handling of hazardous cutting tools while maintaining efficient cutting performance.

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

Solution Approach 2:

The cutting system is designed to be self-operating through automated control. The ultrasonic blade automatically positions and cuts container surfaces without requiring manual intervention during the cutting process, thereby eliminating safety hazards associated with manual tool handling.

Inventive Principle:
Principle #25Self-service

2Duration of action of stationary object

If standard handheld cutting tools are used to cut container surfaces, then cutting can be performed, but the cutting tools experience consistent shear force that shortens their lifespan and increases tool replacement costs

Engineering Contradiction:
Improveblade lifespanVSAvoidtool wear
Core Design Contradiction:
Duration of action of stationary objectVSLoss of energy

Solution Approach 1:

The patent employs ultrasonic vibration of the cutting blade to cut container surfaces. The high-frequency vibration allows the blade to penetrate and cut surfaces without applying consistent shear force, thereby reducing mechanical wear and extending blade lifespan.

Inventive Principle:
Principle #18Mechanical vibration

Solution Approach 2:

The cutting mechanism changes from static shear force application to dynamic ultrasonic vibration. This parameter change in the cutting process fundamentally alters how the blade interacts with container surfaces, reducing wear while maintaining cutting effectiveness.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If automated ultrasonic cutting with press actuator is implemented, then blade lifespan is extended and safety is improved, but device complexity increases due to positioning and actuation mechanisms

Engineering Contradiction:
Improvetool durabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The press actuator mechanism serves multiple functions: it positions the container surface against the ultrasonic blade, applies necessary pressure for cutting, and can adjust for different container types. This multi-functionality reduces the need for separate positioning and pressing mechanisms, thereby managing system complexity.

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

Solution Approach 2:

The system incorporates adjustable and movable components that can adapt to different cutting scenarios. The press actuator and positioning mechanisms are designed to be dynamically adjustable, allowing the same system to handle various container sizes and surface types without requiring complex reconfiguration.

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

The solution enables efficient, safe, and cost-effective automated cutting of containers, preserving blade health, reducing hazardous conditions, and minimizing tool replacement frequencies, while maintaining consistent cuts even on varied container surfaces.

Implementation Method 1

operating the ultrasonic cutting blade and the press actuator to cause the ultrasonic cutting blade to vibrate ultrasonically while the container and the flat cutting edge of the ultrasonic cutting blade press against each other until the ultrasonic cutting blade penetrates the flat surface of the container by a predefined depth

Methodology Applied
Scientific EffectUltrasonic vibration: Ultrasonic Vibration

Data Source

PatentEP3960403B1Container cutting apparatus
Publication Date: 2024.06.26 GOOGLE LLC
  • EP3960403B1 patent drawingFigure 1
  • EP3960403B1 patent drawingFigure 2
  • EP3960403B1 patent drawingFigure 3

AI summary

An apparatus for cutting containers. The apparatus includes an ultrasonic cutting blade that has a flat cutting edge of a cutting length; a container positioner that secures a container in a position relative to the ultrasonic cutting blade so that the flat cutting edge of the ultrasonic cutting blade may be positioned to be in contact with a flat surface of the container; a press actuator that causes the flat surface of the container and the flat cutting edge of the ultrasonic cutting blade to press against each other; and a control system that operates the ultrasonic cutting blade and the press actuator to cause the ultrasonic cutting blade to vibrate ultrasonically while the container and the flat cutting edge of the ultrasonic cutting blade press against each other until the ultrasonic cutting blade penetrates the flat surface of the container by a predefined depth.