Cutting Blade Mounting Assembly for Automated Ultrasonic Blade Changes
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Solution Overview
Problem
Existing ultrasonic cutting devices face challenges in efficiently changing cutting blades due to high acceleration forces leading to welding, requiring manual application of copper paste, causing high downtimes, risks of operator injury, and potential errors in blade alignment and tightening, resulting in reduced cut quality and equipment damage.
Innovation Solution
A cutting blade mounting device with a shank and attachment member, featuring a structure like a thread or projection, allows for secure and repeatable attachment to a cutting blade holder, enabling automated blade changes without interrupting the manufacturing process, and includes a magazine for storing multiple blades to facilitate quick swaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If copper paste is applied manually to prevent welding, then the cutting blade can be secured to the holder, but the downtime increases and operator safety risks increase
Solution Approach 1:
The system performs the blade changing operation automatically without requiring manual application of copper paste or human intervention during the critical mounting steps, thereby eliminating downtime while maintaining the prevention of welding through controlled automated tightening
Solution Approach 2:
The manual mechanical process of applying copper paste and tightening the blade is replaced by an automated mounting device with controlled tightening mechanism, eliminating the need for manual operations and reducing downtime
2Productivity
If manual blade changing is performed, then the blade can be replaced, but errors in alignment and tightening occur reducing cut quality
Solution Approach 1:
The automated mounting device incorporates sensors and control systems that provide feedback on blade alignment and tightening parameters, ensuring precise positioning and controlled tightening torque to prevent welding while maintaining cut quality
Solution Approach 2:
Manual mechanical operations are replaced by an automated system with precise positioning and controlled tightening mechanisms, eliminating human error in alignment and tightening while maintaining or improving manufacturing precision
3Power
If high acceleration forces are applied during cutting, then cutting efficiency is improved, but welding occurs between the cutting blade and holder
Solution Approach 1:
The mounting device applies preliminary controlled tightening to secure the blade to the holder before the cutting operation begins, ensuring proper adhesion and preventing welding during the high-acceleration cutting process
Solution Approach 2:
The system controls the tightening parameters (torque, pressure distribution) during the mounting process to create optimal bonding conditions that prevent welding during high-power cutting operations
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
Ensures safe, reliable, and efficient blade changes within a defined time window, reducing downtimes and errors, while maintaining cut quality by monitoring alignment and torque, and allowing for flexible blade geometry swaps.
Implementation Method 1
The attachment member (20) comprises an engagement structure (21), with which a transmission member/drive member (115) can engage to cause the attachment member (20) to rotate. The cutting blade (10) is attached to the cutting blade holder (210) by means of a relatively simple construction in which the attachment member (20) is rotated.
Implementation Method 2
A spring (104) is provided in the magazine (100), which pushes the attachment member (20) in a direction of the cutting device (200).
Implementation Method 3
A back and forth movement of a cutting blade in an ultrasonic cutting device is effected therein by means of a sonotrode. Due to the high frequency during the cutting process, the cutting blade is exposed to correspondingly high acceleration forces.
Data Source
AI summary
The invention relates to a cutting blade mounting device comprising a cutting blade comprising a shank, and an attachment member which receives at least sections of the shank of the cutting blade. The attachment member comprises a structure, in particular a thread, for attachment to a cutting blade holder of a cutting device.