Non-welded Replaceable Blade Assembly for Slicers
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Solution Overview
Problem
Existing slicer blade assemblies for high-speed automatic slicing machines are costly due to the need for complete replacement, create sanitation issues with complex clinch mechanisms, and suffer from brittleness caused by welding, leading to increased downtime and maintenance.
Innovation Solution
A slicer blade assembly with removably attached components, eliminating the need for welding, allowing for individual blade replacement without replacing the support members, and featuring adjustable blades for use in multiple slicer configurations, utilizing a tapered retaining nut and U-shaped tabs for a robust, non-welded mechanical bond.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If welding is used to attach blades to support members, then the blade assembly achieves strong structural integrity, but the blades become brittle and prone to weakening
Solution Approach 1:
The blade assembly is divided into separate modular components: the blade, the support member, and the retention mechanism. This segmentation allows each component to be optimized independently and replaced individually, eliminating the need for welding while maintaining structural integrity through mechanical retention.
Solution Approach 2:
The patent replaces the welding process (thermal/mechanical joining) with a mechanical retention system consisting of a support member with a retention feature and a corresponding retention mechanism. This substitution eliminates the brittleness caused by welding while maintaining strong structural connection.
2Ease of manufacture
If the entire blade assembly is replaced when the blade needs replacement, then the blade is replaced, but the cost increases and downtime increases
Solution Approach 1:
The blade assembly is segmented into replaceable blade components and reusable support members. This allows the blade to be replaced independently without replacing the entire assembly, reducing both cost and downtime while maintaining operational efficiency.
Solution Approach 2:
The patent implements a system where the blade (consumable component) is discarded and replaced, while the support member (durable component) is recovered and reused. This selective replacement strategy reduces waste and lowers the effective cost of blade replacement.
3Strength
If a clinch mechanism is used to support blades, then the blades are supported against bending and warping, but the mechanism becomes complex and creates sanitation issues
Solution Approach 1:
The patent extracts the essential function of blade support (preventing bending and warping) from the complex clinch mechanism. The simplified support member provides this function through a straightforward mechanical design that is easier to clean and maintain, eliminating sanitation issues while maintaining blade stability.
4Strength
If multiple welds are made to the blade, then the blade is securely attached, but the blade becomes brittle and potentially weakened
Solution Approach 1:
The patent replaces multiple welds with a single mechanical retention system consisting of a support member with a retention feature that mechanically secures the blade. This substitution maintains attachment strength while eliminating the brittleness and weakening caused by multiple welds.
Data Source
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AI summary
A slice blade assembly for various produce items is provided. A circular array of V-shaped blades is carried in an outer support ring. Each blade is held in place by a new non-welded block and nut which interlock with bent tabs formed at the tips of each blade. Each blade is adjustable since each blade is bendable at its apex. Each worn or damaged blade may be removed and replaced without replacing the block and nut that support the blade.