Low-Speed Screw Juice Extraction for Viscous Produce and Soymilk
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Solution Overview
Problem
Existing juice extractors destroy intrinsic flavors and nutrients during high-speed processing, struggle with extracting green juices and soymilk from beans, and require frequent disassembly and cleaning due to high viscosity issues and noise from unbalanced screw operation.
Innovation Solution
A juice extractor design featuring a low-speed rotating screw with a mesh drum and rotary brush for efficient juice extraction, automatic downward material movement, and separate draff and juice outlets to prevent clogging and noise, allowing for continuous use without frequent cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-speed crushing method is used for juice extraction, then extraction speed is improved, but intrinsic flavor and nutrients are destroyed
Solution Approach 1:
The patent changes the operating speed parameter from high-speed to low-speed rotation. The screw rotates at low speed to gently press and extract juice, avoiding the destruction of intrinsic flavor and nutrients while maintaining effective extraction capability.
Solution Approach 2:
The patent replaces the high-speed mechanical crushing system with a low-speed screw pressing system. Instead of using rapid rotation to crush materials, it employs a slowly rotating screw to apply gradual pressure and extract juice through the mesh drum.
2Productivity
If high-speed crushing is used, then juice extraction efficiency is improved, but it becomes difficult to extract green juice from vegetables with branches or leaves
Solution Approach 1:
The patent changes the extraction mechanism from high-speed crushing to low-speed pressing, which is gentler on delicate plant structures. This allows vegetables with branches or leaves to be processed without damaging their cellular structure excessively, enabling green juice extraction.
Solution Approach 2:
The patent uses a mesh drum with multiple mesh openings to segment the pressing action. The screw presses materials against the mesh drum, which segments the extraction process into multiple contact points, allowing gradual juice extraction from various material types including greens.
3Productivity
If high viscosity fruits like kiwi or strawberry are processed, then juice extraction is difficult, and soymilk extraction from beans is impossible
Solution Approach 1:
The patent employs continuous low-speed pressing action through the screw mechanism. This continuous gentle pressure allows viscous materials like kiwi, strawberry, and beans to be gradually pressed and extracted, maintaining continuous contact with the mesh drum for thorough juice extraction.
Solution Approach 2:
The patent changes the extraction parameters by using low-speed rotation combined with sustained pressure through the screw mechanism. This parameter change enables the processing of high viscosity materials that cannot be effectively extracted using high-speed crushing methods.
4Device complexity
If screw rotation is not supported by a rotary shaft, then device complexity is reduced, but screw shaking and collision with wall blades occur causing noise and abrasion
Solution Approach 1:
The patent introduces a rotary shaft as a supporting structure for the screw. This shaft acts as a counterbalance and support mechanism, preventing the screw from shaking during rotation and eliminating collisions with the mesh drum wall blades, thereby reducing noise and abrasion.
Solution Approach 2:
The patent provides preliminary support through the rotary shaft structure that cushions and stabilizes the screw during operation. This pre-established support prevents vibration and collision before they can occur, ensuring smooth operation without noise or wear.
5Productivity
If housing is longitudinally fixed to drive unit, then juice extraction speed is improved and juice flows downward well, but device complexity increases
Solution Approach 1:
The patent changes the housing orientation from horizontal to longitudinal (vertical) positioning. This dimensional change allows gravity to assist juice flow downward through the mesh drum and out of the housing, improving extraction speed and juice flow without requiring additional pumping mechanisms.
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
Maintains nutrient and flavor integrity, enhances juice flow, reduces noise and abrasion, and enables efficient extraction of various juices and soymilk without frequent disassembly, improving user experience and efficiency.
Implementation Method 1
the housing accommodating the screw is longitudinally fixed to an upper side of the drive unit so as to press, grind and extract juice from materials put into the inlet port
Implementation Method 2
a mesh drum having a mesh structure formed on an outer wall of the mesh drum to discharge juice to the juice outlet port
Implementation Method 3
a rotary brush installed between the housing and the mesh drum to be rotated, and having a brush holder in which a brush for continuously sweeping the mesh drum and the housing is installed
Implementation Method 4
make the extracted juice well flow downward without remaining in a housing
Data Source
AI summary
A juice extractor capable of extracting juice from vegetables, fruits or soymilk from beans is disclosed. The extractor includes a housing having a draff outlet port and a juice outlet port, a screw having an upper rotary shaft inserted in a rotary shaft hole of the housing and a lower rotary shaft with a plurality of screw spirals formed on an outer periphery thereof, and a mesh drum for extracting the juice toward the juice outlet port, and a rotary brush mounted between the housing and the mesh drum and having a brush holder. Various nutrients and intrinsic flavor contained in the vegetables or fruits are maintained to the fullest extent by employing a very low speed screw of a squeezing mode. Also, since the housing accommodating the screw is vertically fixed to an upper portion of a drive unit, the material is automatically moved downward without pressing the material down, and the draff is discharged while squeezing and grinding the materials put in an inlet port.