Flow-Propelled Rotary Knife for Vegetable Spiral Cutting
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Solution Overview
Problem
Existing rotary knife systems for cutting vegetables into spiral or helically shaped pieces are complex and power-intensive, requiring multiple power-driven devices that complicate maintenance and consume significant energy.
Innovation Solution
A flow-propelled rotary knife system that uses the flow of water to rotationally propel a twisted blade, eliminating the need for a power-driven rotary cutting head and simplifying the system by integrating the blade holder and blade within a housing with a central aperture, allowing the blade to rotate and cut objects in a helical manner as they are propelled through the water conduit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If power-driven rotary cutting heads are used to cut vegetable products into spiral pieces, then cutting functionality is achieved, but device complexity and power consumption increase
Solution Approach 1:
The patent extracts and removes the power-driven rotary cutting head from the system, replacing it with a water-flow-propelled blade. This eliminates motors, gearboxes, and other complex mechanical components while maintaining the spiral cutting function through the twisted blade geometry that converts water flow into rotational motion.
Solution Approach 2:
The system uses the existing water flow that is already present in the water knife system to propel the blade rotationally. The water flow serves dual purposes: transporting the vegetable products and driving the cutting blade, eliminating the need for separate power-driven components and simplifying the overall system.
2Productivity
If multiple power-driven devices are used simultaneously in rotary knife systems, then cutting performance is maintained, but energy consumption increases significantly
Solution Approach 1:
The water flow in the system performs multiple functions simultaneously: it transports the vegetable products through the system and also propels the blade to perform cutting. This multi-functionality eliminates the need for separate power-driven devices while maintaining cutting performance, thereby significantly reducing energy consumption.
Solution Approach 2:
The patent uses hydraulic principles by utilizing the kinetic energy of the water flow to drive the blade rotation. The water flow's hydraulic energy is converted into mechanical rotational motion of the blade, eliminating the need for electrical motors and reducing power consumption while maintaining productivity.
3Shape
If power-driven rotary cutting heads are employed, then spiral cutting is achieved, but the system requires multiple power-driven parts that complicate repair and maintenance
Solution Approach 1:
The patent removes the power-driven rotary cutting head and its associated complex mechanical components (motors, transmissions, bearings) from the system. The spiral cutting function is achieved through a simpler water-flow-propelled twisted blade, which has fewer parts and is easier to repair and maintain.
Solution Approach 2:
The patent replaces the mechanical power-driven rotation system with a hydraulic propulsion system using water flow. This substitution eliminates complex mechanical linkages and reduces the number of moving parts that require maintenance, while the twisted blade geometry maintains the spiral cutting quality.
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 system effectively cuts vegetable products into helically shaped pieces with reduced complexity and energy consumption, as the water flow propels the blade to cut objects efficiently without the need for additional power-driven components, enhancing maintenance simplicity and operational efficiency.
Implementation Method 1
the blade has a twisted shape selected to rotationally propel the blade and the blade holder to rotate about the rotational axis when the blade is contacted by fluid flowing through the fluid passage and the central aperture in a flow direction
Data Source
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AI summary
A flow-propelled rotary knife system includes a housing (326) having an outlet end (330, 1230), a rotatable blade holder (332, 1232) disposed at the outlet end (330, 1230), and at least one blade (334, 700), having a twisted shape and extending diametrically across a central aperture (336, 1236) of the blade holder (332, 1232). Objects propelled along the fluid flow path in the flow direction (348) toward the outlet are helically cut by the rotating blade (334, 700). A system for cutting vegetable products comprises a water knife system including a water conduit (12) for transporting vegetable products in a water flow, and a cutting unit (22) positioned along the water conduit (12). A method for cutting spiral pieces of an object comprises providing a flow of water, introducing an object into the flow to be cut by a rotatable blade of a knife having a twisted propeller-like shape.