Resilient Knife Sharpening Jig for Consistent Edge Angle
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Solution Overview
Problem
Existing jig devices for knife sharpening in grinding machines often require user skill to achieve evenness and edge angle, and can be complicated to use, leading to inconsistent results.
Innovation Solution
A jig device with a clamp made of pliable material and a jig arm made of rigid material, attachable to a grinding machine's support structure, featuring a scale for angle adjustment and a waste collecting mechanism, allowing for controlled engagement of the knife blade with the grindstone, reducing user dependency and improving grinding precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a rigid clamp is used to hold the knife blade firmly, then the stability and precision of the grinding operation is improved, but the ease of operation deteriorates due to difficulty in adjusting and securing the blade
Solution Approach 1:
The clamp is made from a resilient material whose physical state can change between flexible (for easy blade insertion) and rigid (for stable grinding). This parameter change in material rigidity resolves the contradiction between ease of operation and grinding precision.
Solution Approach 2:
The clamp is constructed from composite or resilient material that combines the properties of flexibility and rigidity. This allows the clamp to be easily adjusted during operation while maintaining precise positioning during grinding, thus resolving the contradiction between ease of operation and manufacturing precision.
2Device complexity
If a simple clamp design is used, then the device complexity is reduced, but the reliability of consistent sharpening results deteriorates due to inability to maintain proper blade positioning
Solution Approach 1:
The resilient material in the clamp allows for parameter changes in rigidity, enabling the simple clamp structure to reliably maintain blade positioning during grinding while remaining easy to adjust, thus achieving both low complexity and high reliability.
3Device complexity
If user skill is relied upon to achieve even sharpening and correct edge angle, then the device complexity is minimized, but the manufacturing precision deteriorates due to dependency on operator expertise
Solution Approach 1:
The resilient clamp automatically adapts to the blade and maintains proper positioning without requiring user skill for adjustment. The material's inherent properties provide self-adjusting functionality, eliminating dependency on operator expertise while maintaining precision.
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 jig device provides stable and resilient support for knife blades, enabling consistent and precise sharpening results with reduced user skill requirements, while being easy to use and maintain, and includes a waste collection system for cleanliness.
Implementation Method 1
the clamp is made of pliable material (e.g., a resilient material such as a polymer material having resilient properties)
Data Source
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AI summary
A grinding machine (30) has a rotatable grindstone (31) and a support structure (32). A jig device (10) is provided for bringing a knife blade (20) to be sharpened into controlled engagement with the grindstone (31). A jig arm (11) of the jig device (10) is provided with attachment means (13) for attachment to the support structure (32) in a proper position for the grinding of the knife blade (20). The jig device (10) also comprises a resilient clamp (12) for receiving and fixing the knife blade (20) in the clamp (12), in operation.