Blade Mounting Jig Using Air Ejection Ports for Contactless Handling
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Solution Overview
Problem
Cutting blades, especially washer-type blades, are prone to breaking during mounting and dismounting from a flange due to the lack of support and direct handling, which can lead to accidents and damage.
Innovation Solution
A blade mounting and dismounting jig using air ejection ports and a cylindrical body to create a negative pressure environment, allowing contactless mounting and dismounting of blades, preventing direct contact and concentration of force on the blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator grips the cutting blade by hand to mount or dismount it from the flange, then the mounting and dismounting operation can be performed, but the cutting blade may be broken due to direct contact and concentration of force
Solution Approach 1:
The patent introduces a mounting tool as an intermediary device between the operator's hand and the cutting blade. The mounting tool includes a holder that engages with the blade's mounting hole and a grip portion that the operator holds, allowing force application without direct hand contact with the blade body. This mediator transfers the operator's gripping force through the holder structure to securely mount or dismount the blade without concentrating stress on the blade itself, thereby preventing breakage while maintaining ease of operation.
2Productivity
If the operator directly touches the cutting blade during mounting and dismounting, then the operation is simple and quick, but the risk of blade breakage increases
Solution Approach 1:
The patent replaces the direct mechanical contact system (operator's hand gripping the blade) with an indirect mechanical system using the mounting tool. The mounting tool acts as a force transmission mechanism that distributes stress through its structural components (holder, engagement portion, grip) rather than concentrating it on the blade. This substitution maintains operational speed while eliminating the harmful direct contact that causes blade breakage.
3Productivity
If washer-type cutting blades are used which lack mount support, then the cutting performance is improved, but the blades become more susceptible to breaking during mounting and dismounting
Solution Approach 1:
The mounting tool serves as a critical intermediary that compensates for the washer-type blade's lack of mount support. The holder engages with the blade's mounting hole and provides a distributed force application point, while the grip portion allows the operator to apply mounting force without directly touching the fragile blade body. This intermediary structure protects the unsupported washer-type blade from breaking during mounting and dismounting operations while preserving its superior cutting performance.
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
Enables safe and efficient contactless mounting and dismounting of blades, reducing the risk of breakage and improving handling efficiency by using air pressure to secure the blade without direct touch.
Implementation Method 1
a blade mounting and dismounting jig using air ejection ports and a cylindrical body to create a negative pressure environment
Data Source
AI summary
A blade mounting and dismounting jig is provided for mounting a blade on and dismounting a blade from a flange of a cutting apparatus which includes a boss, a blade mount for mounting the blade fitted thereover, the flange having an annular end face for supporting the blade thereon and being fixed to a distal end of a spindle, and a holder that cooperates with the flange in gripping and securing the blade in position. The blade mounting and dismounting jig includes a cylindrical jig body, a grip coupled to the jig body and having a diameter larger than the jig body, a plurality of first air ejection ports defined in a distal end portion of the jig body, a plurality of second air ejection ports defined in the jig body at a juncture between the jig body and the grip.