Perforated Disk with Arcuate Holes for Meat Shredding
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Solution Overview
Problem
Existing perforated disks in meat shredding machines face challenges with bending, wear, and efficiency, especially at high throughputs, due to compression and friction during the shredding process, leading to reduced cutting quality and increased energy consumption.
Innovation Solution
A perforated disk design with through openings that change in cross-sectional dimensions from the inlet to the outlet side, featuring an arcuate axis and elongated holes, which reduces material relaxation and enhances cutting quality and throughput while minimizing wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the perforated disc is made thicker to reduce deflection, then structural stability improves, but wear increases and manufacturing complexity increases
Solution Approach 1:
The perforated disc employs different hole configurations in different zones: the first zone has holes with larger cross-sections for initial material engagement, while the second zone has holes with smaller cross-sections for refined cutting. This local differentiation allows optimized performance in each zone without requiring uniform thickening throughout the entire disc, thereby reducing overall wear while maintaining deflection resistance.
Solution Approach 2:
The perforated disc is divided into multiple zones along the material flow path, with each zone having distinct hole characteristics. The first zone handles initial material compaction and the second zone handles final cutting, allowing each zone to be optimized independently for its specific function, reducing wear in the cutting zone while maintaining structural stability.
2Manufacturing precision
If the through-openings are designed with changing cross-sections, then cutting quality improves, but manufacturing complexity increases
Solution Approach 1:
The through-openings are designed with different cross-sectional dimensions at different locations: larger cross-sections in the first zone for effective material engagement and compaction, and smaller cross-sections in the second zone for precise cutting. This local variation in hole geometry directly improves cutting quality by providing appropriate cutting edge angles and material engagement characteristics for each zone, while the design remains manufacturable through standard machining processes.
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 improves cutting quality, increases energy efficiency, and reduces wear on the perforated disk, ensuring efficient shredding of semi-solid biological materials by maintaining an acute-angled cutting edge and optimizing the flow of raw materials through the disk.
Implementation Method 1
friction occurs in the cutting blades during grinding
Implementation Method 2
grinding naturally results in greater product compression than knife cutting
Data Source
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AI summary
The invention relates to a perforated disc for a device for grinding semi-solid, inhomogeneous, biological raw materials, wherein the perforated disc has an inlet and an outlet side and a plurality of through-openings, and wherein the through-openings each extend from the inlet side to the outlet side through the perforated disc, and the through-openings each have a cross-section and an axis of passage that changes from the inlet to the outlet side, wherein the axis of passage does not run straight from the inlet to the outlet side. The invention further relates to the use of a perforated disc according to the invention.