Universal Blade Holder with Radial Positioning Teeth
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Solution Overview
Problem
Existing rotary blade sharpeners require multiple holders for accommodating various blade sizes, leading to inefficient installation and removal, uneven sharpening, and blade deformation, which reduces blade life and increases costs due to frequent replacements.
Innovation Solution
A universal blade holder with an adjustable blade sharpener and radially spaced blade-retaining sections with positioning teeth and magnets to securely hold and rotate circular blades of different sizes, preventing off-axis movement and ensuring uniform sharpening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple blade holders are used to accommodate various blade sizes, then blade size versatility is improved, but device complexity and installation/removal efficiency worsen
Solution Approach 1:
The patent implements a universal blade holder design where a single holder can accommodate multiple blade sizes through adjustable components. The holder includes adjustable blades and positioning mechanisms that can be configured for different blade diameters, eliminating the need for multiple dedicated holders for each blade size.
Solution Approach 2:
The blade holder incorporates dynamic adjustment capabilities, allowing the holder structure to be modified during operation to fit different blade sizes. This includes adjustable arms, movable positioning elements, and configurable clamping mechanisms that adapt to various blade dimensions without requiring complete holder replacement.
2Adaptability or versatility
If multiple blade holders are used for different blade sizes, then blade size versatility is improved, but installation and removal speed worsens
Solution Approach 1:
By creating a single universal holder that can quickly be reconfigured for different blade sizes, the system eliminates the time-consuming process of physically replacing entire blade holders. The quick-adjustment mechanisms allow operators to change blade sizes rapidly without extensive disassembly or reconfiguration.
3Reliability
If prior art holders are used, then blade holding capability is achieved, but sharpening uniformity worsens due to off-axis positioning
Solution Approach 1:
The blade holder incorporates self-centering mechanisms that automatically position the blade on the rotational axis during installation. The design includes self-adjusting positioning elements that detect and correct off-axis positioning, ensuring the blade is perfectly centered without requiring manual alignment by the operator.
Solution Approach 2:
The system includes positioning feedback mechanisms that monitor blade alignment and provide real-time adjustments to maintain precise axial positioning. Sensors or mechanical feedback elements detect deviations from the center position and trigger corrective positioning actions to ensure uniform sharpening.
4Reliability
If prior art holders are used, then blade holding is achieved, but blade deformation occurs leading to reduced blade life
Solution Approach 1:
The blade holder employs adjustable clamping force parameters and positioning pressure parameters that can be optimized for different blade types and sizes. By controlling these parameters, the system provides secure blade holding while preventing excessive force that could cause deformation or warping, thereby extending blade service life.
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 allows for efficient sharpening of variously sized blades with reduced production downtime and capital expenditures by ensuring secure, uniform sharpening and extending blade life.
Implementation Method 1
Each blade-retaining section has a magnet that secures the respective one of the circular blades to the blade-receiving chassis in radial opposition to the positioning teeth
Data Source
AI summary
A universal blade sharpening machine is operable to securely hold and sharpen any one of multiple variously sized circular blades. The machine includes a blade-sharpening drive with an adjustable blade sharpener and also includes a universal blade holder that is rotatably powered by the drive. The blade holder includes a blade-receiving chassis that holds the blade during sharpening and is rotatable about a rotation axis of the blade holder. The chassis includes a plurality of radially spaced blade-retaining sections each associated with a respective one of the circular blades.