V-Shaped Food Cutting Blade Mounts That Prevent Rotation

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Solution Overview

Problem

Existing blade assemblies for cutting food, particularly in high-speed hydraulic systems, face issues with V-shaped blades rotating out of alignment due to torsional loads from repeated impacts, leading to misalignment and inefficient cutting.

Innovation Solution

The blade assembly features a blade support frame with strategically designed blade mounts that inhibit rotation by overlaying both edges of the V-shaped blades, using a combination of recesses and removable fasteners to securely fasten the blades, ensuring they remain aligned and functional.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If V-shaped blades are used for cutting food in high-speed hydraulic systems, then cutting efficiency is improved, but the blades rotate out of alignment due to torsional loads from repeated impacts

Engineering Contradiction:
Improvecutting efficiencyVSAvoidblade alignment
Core Design Contradiction:
ProductivityVSStability of the object's composition

Solution Approach 1:

The blade is divided into three distinct portions: a first end portion for mounting, an intermediate cutting portion, and a second end portion for mounting. This segmentation allows the mounting portions to be reinforced for stability while the intermediate portion maintains cutting effectiveness, resolving the contradiction between cutting efficiency and alignment stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The blade assembly combines different material properties in different portions of the blade. The end portions are designed with higher torsional rigidity (through structural design or material selection) to resist rotation, while the intermediate portion maintains cutting sharpness and flexibility, creating a composite structure that balances cutting efficiency and alignment stability.

Inventive Principle:
Principle #40Composite materials

2Stability of the object's composition

If the blade structure is reinforced to prevent rotation, then blade alignment is maintained, but the device complexity increases

Engineering Contradiction:
Improveblade alignmentVSAvoidblade structure
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

Instead of reinforcing the entire blade uniformly, the patent applies enhanced structural properties only to the end portions where mounting occurs. The intermediate cutting portion maintains its original design for efficiency. This localized reinforcement maintains blade alignment while minimizing additional complexity.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The solution addresses the rotation problem not by making the blade itself more complex, but by enhancing the mounting structure in the dimensional space where the blade connects to the support frame. The blade mounts extend across the food flow path and secure the blade ends, preventing rotation without complicating the blade's cutting geometry.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Data Source

PatentUS11673285B2Blade assembly for cutting food
Publication Date: 2023.06.13 MCCAIN FOODS
  • US11673285B2 patent drawing
  • US11673285B2 patent drawing
  • US11673285B2 patent drawing

AI summary

A blade assembly includes a blade support frame, and a plurality of V-shaped blades removably fastened to the blade support frame. The blade support frame has a food flow path extending downstream, and a plurality of blade mounts distributed around the food flow path. Each V-shaped blade has a first end portion connected to one of the blade mounts, a second end portion connected to another of the blade mounts, and an intermediate portion extending from the first end portion to the second end portion into the food flow path. At the first and second end portions of each V-shaped blade, a respective one of the blade mounts overlies both the upstream edge and the downstream edge of the V-shaped blade to inhibit the V-shaped blade from rotating when impacted by food.