Segmented Pressing Screw With Cutting Blades to Prevent Juicer Jamming
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Solution Overview
Problem
Conventional screw pressing presses face issues with screw obstruction during high-volume juicing, leading to reduced efficiency and motor wear due to the complexity of manual reverse operation to clear blockages.
Innovation Solution
A screw pressing press design featuring a cutting part with multiple axial levels of cutting blades arranged on the pressing screw, which cuts food into sections to prevent jamming, and a filter grid for juice/residue separation, enhancing operational efficiency and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a conventional screw pressing press is used for high-volume juicing, then the processing capacity is increased, but the screw is likely to be obstructed by large food pieces
Solution Approach 1:
The pressing screw is divided into multiple functional sections: a cutting part with cutting blades at the upper end, a pressing part with pressing blades in the middle, and a filtering part with filtering holes at the lower end. This segmentation allows different sections to perform specific functions - cutting large pieces, pressing juice extraction, and filtering - thereby preventing obstruction while maintaining high-volume processing capability
2Ease of operation
If the screw is obstructed during operation, then manual reverse switching is required to clear the blockage, but this increases operational complexity and reduces working efficiency
Solution Approach 1:
The cutting blades are positioned at the upper end of the pressing screw to perform preliminary cutting action on food before it reaches the pressing section. This preliminary action prevents large food pieces from causing blockages downstream, eliminating the need for manual reverse operation to clear obstructions and maintaining continuous workflow
3Duration of action of stationary object
If frequent manual reverse operation is performed to clear blockages, then the motor service life is greatly affected, but avoiding blockage requires preventive design
Solution Approach 1:
By segmenting the screw into cutting, pressing, and filtering parts, the design prevents blockages before they occur, eliminating the need for reverse operation that would damage the motor. The cutting part specifically addresses the root cause of blockages by reducing food piece size proactively
Solution Approach 2:
The cutting blades automatically cut food pieces as they enter the pressing screw, providing self-service functionality that prevents blockages without requiring external intervention or reverse operation, thereby protecting the motor and maintaining continuous efficient operation
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 effectively prevents screw clogging and improves working efficiency by cutting food into manageable sections, reducing the risk of blockages and extending motor lifespan.
Implementation Method 1
The food is thus cut into several sections by the cutting part
Implementation Method 2
these sections are more easily pressed by the pressing part
Implementation Method 3
said pressing screw is installed in a pressing sleeve equipped with a filter grid
Data Source
Figure 1
Figure 2~4
Figure 5~6
AI summary
The invention relates to a screw pressing press, comprising a frame (7) on which a motor is mounted, a pressing screw (1; 1') being mounted on an output shaft of the motor, the pressing screw (1 1′) being devoid of a filtering part. According to the invention, the pressing screw (1; 1') comprises an upper part, which is a cutting part (2; 2'), and a lower part, which is a pressing part (4; 4') , and said cutting part (2; 2') is constituted by several cutting blades (21, 22, 23; 21', 22', 23') which axially form several levels.