Low-Speed Screw Juicer With Rotary Brush for Thick Juice Extraction
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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, and require frequent disassembly and cleaning due to high viscosity issues and noise from unidirectional screw operation.
Innovation Solution
A juice extractor design featuring a low-speed rotating screw with a mesh drum and rotary brush for continuous sweeping, a longitudinally assembled housing for gravity-assisted juice flow, and a bidirectional screw to prevent vibration and noise, along with a pressure discharge passage connected to the juice outlet to facilitate smooth extraction and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-speed crushing is used to extract juice, 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 gradually press and extract juice from materials, avoiding the high-speed crushing that destroys nutrients and flavor while maintaining effective extraction capability through sustained pressure.
2Productivity
If high-speed crushing is used, then extraction efficiency is improved, but it becomes difficult to extract green juice from vegetables with branches or leaves
Solution Approach 1:
The patent employs low-speed rotation parameter to provide sufficient pressing time and force for tough vegetable materials with branches or leaves, enabling effective green juice extraction that high-speed methods cannot achieve.
3Productivity
If high-speed crushing is used, then juice extraction is improved, but it becomes difficult to extract juice from high viscosity fruits like kiwi or strawberry
Solution Approach 1:
The patent uses low-speed rotation to apply sustained pressing force on high viscosity fruits, allowing the screw to gradually break down and extract juice from tough materials like kiwi and strawberry that resist high-speed processing.
4Device complexity
If the screw is rotated without a rotary shaft, then device simplicity is improved, but shaking and collision occur causing noise and abrasion
Solution Approach 1:
The patent introduces a rotary shaft as an intermediary component between the drive mechanism and the screw. The rotary shaft provides proper support and positioning for the screw during rotation, preventing shaking and collision with the mesh drum while maintaining structural simplicity.
5Device complexity
If the juice outlet port is in a low position, then device simplicity is improved, but only low juice cups can be used and long juice cups cannot be used
Solution Approach 1:
The patent repositions the juice outlet port from a low horizontal position to an upper vertical position. This dimensional change in outlet placement allows juice to flow upward and accommodates various juice cup types including long cups, while maintaining simple device structure.
6Device complexity
If horizontal transfer method is used, then device simplicity is improved, but juice extraction speed becomes low and thick juice cannot flow downward well
Solution Approach 1:
The patent changes the housing assembly from horizontal to vertical orientation. This dimensional reorientation allows gravity to assist juice flow downward through the mesh drum, significantly improving extraction speed and enabling thick juice to flow efficiently, while keeping the device structure simple.
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
This design maintains nutrient and flavor integrity, enhances juice extraction speed, reduces noise and abrasion, and allows for continuous operation without frequent cleaning, effectively handling various fruits and vegetables, including thick juices and soymilk.
Implementation Method 1
press, grind and extract juice from materials put into the inlet port and to discharge the draff
Implementation Method 2
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 3
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
Data Source
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Figure 3a
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.