Multi-Axis Sharpener Mechanism for Stable Angle Adjustment
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Solution Overview
Problem
Conventional sharpeners have limited adjustable ranges and cumbersome adjustment mechanisms, making it difficult to adapt to different cutter shapes and sharpening requirements, and often fail to maintain a fixed angle during the sharpening process.
Innovation Solution
A sharpener with a cutter holder mechanism, a sharpening stick mechanism, and an attitude adjusting mechanism that includes a vertical rail, sliding body, and rotating body, allowing for multi-dimensional adjustments of the sharpening stick and cutter angle, including stepless and preset angle adjustments, to accommodate various cutter shapes and sharpening needs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional threaded adjustment or pin fixation is used to adjust sharpening angle, then angle adjustment is achieved, but adjustment is complicated and difficult to achieve rapid adjustment with smooth adjustment feel
Solution Approach 1:
The patent replaces conventional threaded mechanical adjustment with a magnetic field-based adjustment system. The attitude adjusting mechanism uses magnetic attraction between the sliding body and rotating body to achieve smooth, rapid angle adjustment without complex threads or pins, directly improving ease of operation while reducing structural complexity.
Solution Approach 2:
The patent changes the adjustment parameter from discrete threaded positions to continuous magnetic field-controlled positioning. The magnetic force allows the sliding body to move smoothly along the vertical rail and the rotating body to rotate freely, enabling stepless angle adjustment that improves both adjustment smoothness and speed.
2Adaptability or versatility
If conventional fixed-angle cutter holder is used, then structure is simple, but it can only hold cutter at fixed angle and cannot adapt to different cutter shapes or sharpening requirements
Solution Approach 1:
The patent transforms the fixed-angle cutter holder into a dynamic, adjustable system. The attitude adjusting mechanism allows the cutter holder to change its angle dynamically during the sharpening process, enabling adaptation to different cutter shapes and sharpening requirements while maintaining operational simplicity.
Solution Approach 2:
The patent makes the cutter holder universal by enabling it to hold cutters at multiple angles. The angle adjusting assembly with its magnetic-based mechanism allows the same holder to adapt to various cutter types and sharpening needs, significantly improving versatility without substantially increasing structural complexity.
3Adaptability or versatility
If sharpening stick angle is adjusted by changing height or angle of sharpening stick, then adjustable range is improved, but adjustment structure becomes cumbersome and inconvenient to use
Solution Approach 1:
The patent replaces complex mechanical angle adjustment mechanisms with a magnetic field-based system. The sliding body moves along the vertical rail and the rotating body rotates under magnetic attraction, providing a wide adjustable range while maintaining simple, convenient operation without cumbersome structures.
4Reliability
If conventional sharpener is used, then structure is simple, but it cannot keep fixed angle during moving and sharpening process
Solution Approach 1:
The patent uses magnetic field-based positioning to maintain fixed angles during sharpening. The magnetic attraction between the sliding body and rotating body provides stable, consistent angular positioning that prevents angle drift during the sharpening process, improving reliability while the magnetic mechanism keeps the overall structure relatively simple.
Solution Approach 2:
The magnetic field system provides continuous feedback on the angular position of the cutter holder. The magnetic attraction force automatically maintains the desired angle during sharpening, creating a self-correcting system that ensures angle consistency without complex mechanical locking mechanisms.
Data Source
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AI summary
The disclosure provides a sharpener, which includes a cutter holder mechanism, a sharpening stick mechanism and an attitude adjusting mechanism. The cutter holder mechanism includes a cutter holder assembly for holding a cutter and an angle adjusting assembly configured to adjust a rotation angle of the cutter on a first plane. The attitude adjusting mechanism includes a vertical rail, a sliding body and a rotating body. The sliding body is slidably installed on the vertical rail to enable the sharpening stick mechanism to be movably arranged in a first direction, the rotating body is connected with the vertical rail to enable the sharpening stick mechanism to be rotatable in a direction parallel to a second plane, an installation part for connecting the sharpening stick mechanism is provided on the sliding body, and the grindstone is movably arranged in a second direction relative to the installation part.