Sharpening Wheel Groove Layout for Faster Knife Grinding
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Solution Overview
Problem
Existing knife sharpeners have a small contact area for grinding, leading to low efficiency and limited application scenarios.
Innovation Solution
A knife sharpening device with multiple sharpening grooves and a rotatable sharpening wheel that extends into the grooves, allowing for increased contact area and efficient grinding, facilitated by an electronic control unit for enhanced operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional whetstones or single-mode sharpeners are used, then the structure is simple, but the contact area of grinding is small and grinding efficiency is low
Solution Approach 1:
The sharpening wheel surface is designed to extend into the sharpening groove, creating a three-dimensional contact interface. The groove is formed recessed along the opposite direction of the height direction of the housing, allowing the sharpening surface to protrude into the groove space, thereby significantly increasing the contact area between the sharpening wheel and the knife edge.
Solution Approach 2:
The sharpening wheel is divided into multiple functional zones with different diameters along the axial line. The diameter decreases gradually from the connection end toward the outer end, creating segmented grinding zones that can handle different sharpening requirements, thereby increasing overall grinding efficiency.
2Adaptability or versatility
If conventional sharpeners with single sharpening mode are used, then the device complexity is low, but the application scenarios are limited
Solution Approach 1:
The sharpening device is designed with multiple sharpening grooves (first, second, and third sharpening grooves) that can accommodate different types of cutting tools including knives and scissors. The electronic control unit provides multiple sharpening modes, enabling the device to handle various sharpening requirements with a single unified structure.
Solution Approach 2:
The sharpening wheel is designed to be rotatable, and the electronic control unit can control the rotation to provide different sharpening modes. This dynamic capability allows the device to adapt to different sharpening scenarios without requiring multiple static sharpening surfaces.
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 device achieves higher grinding efficiency and convenience by enlarging the contact area between the knife and the sharpening wheel, accommodating various tools like knives and scissors, and enabling quick, safe, and continuous operation.
Implementation Method 1
a bottom of the housing is provided with a sucking disc. The sucking disc is provided thereon with a fixing assembly configured to fix the sucking disc.
Data Source
AI summary
The present disclosure provides a knife sharpening device, including a housing and a sharpening assembly arranged inside the housing. The sharpening assembly includes a sharpening wheel rotatably mounted inside the housing. The sharpening wheel includes two opposite mounting surfaces arranged along an axial direction and a sharpening surface along a circumferential direction. The housing is formed thereon with a first sharpening groove that is arranged on a first side of the sharpening surface. The first sharpening groove is formed with openings at both ends along a length direction, and the first side of the sharpening surface extends partially into an interior of the first sharpening groove. During sharpening, a knife is placed into the first sharpening groove to contact the sharpening surface for grinding. According to the technical solution of the present disclosure, sharpening grooves are formed on the housing and fit with the sharpening surface.