Segmented Tool for Angled Knife Edge Treatment
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Solution Overview
Problem
Existing cutting edge treatment devices are dependent on the knife-blade being horizontally oriented, leading to uneven wear and reduced tool service life, and are prone to deformation under excessive load, with limited adjustability for knives with different angles.
Innovation Solution
A device with independently movable and spring-biased segments forming a V-shaped notch, allowing for adjustable width and depth to accommodate angled knife-blades, featuring inner and outer end stops to prevent damage and enable even contact across the cutting edge, and allowing for readjustment of the tool angle to treat knives with varying angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the knife-blade is horizontally oriented between the tools, then the treatment result is satisfactory, but the device is dependent on precise orientation and causes uneven wear
Solution Approach 1:
The tool is divided into multiple segments arranged in a V-shaped configuration. Each segment can independently contact the knife blade at different positions, ensuring that even if the blade is angled, multiple segments remain in contact rather than just the outermost segment, thereby eliminating orientation dependency while maintaining treatment quality
Solution Approach 2:
The segments are made movable relative to each other, allowing them to dynamically adjust their contact points with the knife blade. This dynamic adjustment ensures continuous contact across multiple segments regardless of blade orientation, resolving the contradiction between treatment precision and ease of operation
2Ease of operation
If the knife-blade is angled during treatment, then operation flexibility is improved, but only the outermost segment acts against the knife-edge causing uneven wear
Solution Approach 1:
By segmenting the tool into multiple independently movable segments, the design enables distributed contact across the knife blade even when angled. This prevents the concentration of wear on a single outermost segment, thereby extending tool service life while preserving angling flexibility
Solution Approach 2:
Different segments are positioned to contact different local regions of the knife blade. When the blade is angled, multiple segments maintain contact at their respective local positions, distributing the wear load across all segments rather than concentrating it at one location, thus extending tool life
3Ease of manufacture
If the tools are integrally formed blocks, then manufacturing simplicity is improved, but the mutual position is determined by the lowest point causing limited adaptability
Solution Approach 1:
The integral block is replaced by multiple separate segments that can move independently. This segmentation allows each segment to adapt to different knife angles and positions, significantly improving versatility while maintaining manufacturing simplicity through modular construction
Solution Approach 2:
The static integral block is transformed into a dynamic segmented structure where each segment can move and adjust its position. This dynamic capability enables the tool to adapt to various knife angles and orientations, enhancing versatility while the modular design keeps manufacturing straightforward
4Adaptability or versatility
If the segments are spring biased toward each other, then load adaptation is improved, but deformation risk increases under excessive load
Solution Approach 1:
The tool is segmented into multiple independently spring-biased segments. This segmentation distributes the load across multiple contact points rather than concentrating it, allowing the spring mechanism to adapt to varying loads while reducing the risk of deformation through distributed stress
Solution Approach 2:
The spring bias provides beforehand cushioning by pre-loading the segments in a controlled manner. This cushioning effect allows the tool to adapt to load variations while preventing excessive force concentration that could cause deformation, thereby maintaining both adaptability and reliability
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 ensures even wear and extended tool life by allowing active contact across the entire cutting edge, regardless of orientation, and prevents deformation by maintaining a gap at the notch bottom, while simplifying production and enabling treatment of knives with different angles.
Implementation Method 1
the individual tool features a holder in which the two or more segments are individually movably mounted and, independently of the other segments of the same tool, spring biased toward the opposite tool
Implementation Method 2
at least one of the tools featuring segments having an active, grinding or dressing or polishing contact surface
Data Source
Figure 1~3
Figure 4a~5
AI summary
A device arranged for the treatment of a cutting edge is shown, which device comprises tools (2, 3), which are located opposite each other in pairs and which are mounted and mutually movable in reciprocating directions of motion, which tools comprise two or more segments (2', 3', etc.), which are arranged at spaces and have a respective contact surface (5, 6), which segments are arranged to alternately engage the segments of the opposite tool, so that, between the contact surfaces of the opposed segments, there is formed a V-shaped notch of variable depth adapted for the insertion of a cutting edge to be treated, at least one of the tools (2, 3) featuring segments having an active, grinding or dressing or polishing contact surface. The segments (2'7 2", 2'") of an individual tool (2) are individually and independently of other segments included in the same tool movably mounted in a holder (7) arranged for the purpose, as well as biased in relation to the holder in the direction of the opposite tool (3).