Ultrasonic Cutting System With Rotational Inert Tool
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Solution Overview
Problem
Ultrasonic cutting devices with resonant blades face challenges such as frequent sharpening needs, which disrupt vibratory characteristics, limited versatility due to specific frequency ranges, and high costs associated with maintaining and repairing these devices, making them unsuitable for cutting large or delicate products effectively.
Innovation Solution
An ultrasonic cutting system using a non-resonant inert cutting tool vibrated by a resonant assembly, allowing for rotational movement to enhance cutting power and reduce adhesion, with the ability to adjust tool dimensions and sharpen without affecting vibrational properties, offering improved cutting quality and versatility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a resonant blade is used for ultrasonic cutting, then cutting power is improved, but the blade requires frequent sharpening which disrupts vibrational characteristics and increases maintenance complexity
Solution Approach 1:
The system separates the resonant component (blade holder) from the non-resonant component (cutting tool/blade). The blade holder maintains stable resonant vibrations, while the blade can be freely replaced or sharpened without affecting the vibrational characteristics, thus resolving the contradiction between cutting power and maintenance complexity.
2Productivity
If a resonant blade is used for ultrasonic cutting, then cutting efficiency is improved, but adaptability to different product sizes and types is reduced
Solution Approach 1:
The blade holder is designed with universal adaptability to accommodate different types of cutting tools (saws, knives, wires) for various product sizes and types. This allows the resonant system to maintain cutting efficiency while the interchangeable tools provide versatility for different applications.
3Adaptability or versatility
If a non-resonant cutting tool is used for ultrasonic cutting, then adaptability and ease of sharpening are improved, but cutting power is reduced due to increased product adhesion
Solution Approach 1:
The system merges the resonant blade holder with the non-resonant cutting tool, combining the advantages of both approaches. The resonant holder provides the vibrational energy for cutting power, while the non-resonant tool allows adaptability and easy sharpening without disrupting vibrational characteristics.
4Area of stationary object
If a wider cutting tool is used to cut large products, then coverage is improved, but vibration damping increases making cutting impossible
Solution Approach 1:
The system separates the resonant function (concentrated in the blade holder) from the cutting function (performed by the wider non-resonant tool). This allows the tool to have sufficient width for cutting coverage without compromising vibration maintenance, as the resonant holder compensates for any damping effects.
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 system provides enhanced cutting power and quality, reduces material loss, and increases the versatility of ultrasonic cutting by allowing the use of interchangeable cutting tools, making it more economical and adaptable to various product sizes and types.
Implementation Method 1
an ultrasonic transmitter, configured to emit an ultrasonic wave; and a resonant assembly, coupled to the ultrasonic transmitter and tuned to the ultrasonic wave, configured to transmit a vibration along a direction of propagation
Implementation Method 2
a resonant assembly, coupled to the ultrasonic transmitter and tuned to the ultrasonic wave
Implementation Method 3
a means of rotation configured to allow a rotational movement of the inert cutting tool
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
One aspect of the invention relates to an ultrasonic cutting system (101) comprising an inert cutting tool (200) and an ultrasonic vibration device (300), the ultrasonic vibration device (300) comprising: - an ultrasonic emitter (310), configured to emit an ultrasonic wave; and - a resonant assembly (320), coupled to the ultrasonic emitter (310) and tuned to the ultrasonic wave, configured to transmit a vibration along a propagation direction (X); the inert cutting tool (200) being coupled to the resonant assembly (320) so as to vibrate in a bending mode, the ultrasonic cutting system (101) being characterized in that it comprises a rotation means (400) configured to allow a rotational movement of the inert cutting tool (200).