Mesh Drum Grinding Structure for High-Viscosity Juice Extraction
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Solution Overview
Problem
Existing juicers face issues with low juice extraction efficiency, residue accumulation, and difficulty in processing high-viscosity fruits and vegetables, leading to inefficient juice extraction and maintenance challenges.
Innovation Solution
A mesh drum design with grinding blades on the inner circumferential surface of the lower portion, combined with a feed screw and housing configuration, enhances material transfer and compression, improving juice extraction efficiency and reducing residue accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-speed crushing is used to extract juice, then juice extraction speed is improved, but intrinsic flavor and nutrients are destroyed
Solution Approach 1:
The patent replaces the traditional high-speed mechanical crushing system with a low-speed grinding and pressing system. The grinding blades rotate at low speed to grind raw materials into paste, which then passes through the mesh drum under pressure, extracting juice without high-speed mechanical destruction of nutrients and flavor.
2Volume of moving object
If horizontal material transfer is used, then device space is reduced, but juice extraction speed becomes low and thick juice does not flow smoothly
Solution Approach 1:
The patent changes the material transfer direction from horizontal to vertical downward movement. The feed screw and grinding blades are configured to move ground material vertically downward through the mesh drum, where gravity assists flow and ensures smooth passage of thick juice, while the compact vertical arrangement maintains space efficiency.
3Device complexity
If feed screw rotates without rotary shaft support, then device complexity is reduced, but feed screw shakes and collides with wall blades causing noise and abrasion
Solution Approach 1:
The patent introduces a rotary shaft as an intermediary support structure for the feed screw. This rotary shaft is rotatably coupled to the housing, providing stable support and preventing shaking during rotation. The rotary shaft acts as a mediator between the motor drive and the feed screw, ensuring reliable operation without excessive complexity.
4Ease of operation
If residue is discharged during disassembling and washing, then cleaning is simplified, but material loss increases
Solution Approach 1:
The patent designs the mesh drum with a residue discharge port that allows controlled discharge of residue during operation. This enables continuous removal of spent material without requiring complete disassembly, reducing material loss while maintaining ease of cleaning. The discharge port can be opened selectively to release residue while retaining the drum structure intact.
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 design increases juice extraction rate, facilitates easy material loading, and effectively discharges residue, enhancing the overall efficiency and usability of the juicer.
Implementation Method 1
the material is naturally moved downwardly due to gravity as a feed screw is rotated
Implementation Method 2
produce juice from the crushed material using a centrifugal separation method
Implementation Method 3
Grinding blades are positioned on the inner circumferential surface of a lower portion of a mesh drum, where mesh holes are not formed, so that fine grinding is performed, thereby improving a transfer efficiency of the material transferred downwardly by the feed screw as well as a compression force at the lower portion of the mesh drum
Data Source
AI summary
The present invention relates to a mesh drum and a juice extractor including the same. The mesh drum according to the present invention includes: a mesh plate formed in a cylindrical hollow shape and is gradually reduced in diameter as it goes toward the bottom from the top, and having at least one mesh holes formed on a side wall thereof; at least one wall blades formed on an inner circumferential surface of the mesh plate in the longitudinal direction of the mesh drum in such a manner as to position in proximity to a feed screw rotating inside the mesh plate; and at least one grinding blades formed on the inner circumferential surface of a lower portion of the mesh plate. The juice extractor according to the present invention includes the mesh drum, a main body, a feed screw, a housing, and cover.