Stator Ring Cutting Structure for Hygienic, Easy-Clean Operation

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Solution Overview

Problem

Conventional cutting systems are difficult to clean thoroughly, particularly in applications with high hygiene requirements, due to complex structures and trapped particles, posing health risks and contamination issues.

Innovation Solution

The cutting system features stator cutting plates with guide rails and a design that eliminates projections and depressions, allowing for easy cleaning, and the cutting rotor is either one-piece or modular with integrated cutting edges, reducing gaps and assembly complexity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional cutting systems use pins and longitudinal grooves to secure stator cutting plates, then the cutting system achieves stable operation and force transmission, but particles become trapped between components making cleaning difficult and hygiene compromised

Engineering Contradiction:

Improvestable operationVSAvoidcleaning ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The invention removes the pins and longitudinal grooves from the stator cutting plates, extracting the problematic features that trap particles. The stator cutting plates are designed without these securing features, eliminating the gaps where particles could be trapped while maintaining stable operation through alternative means.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

Instead of having protruding pins that create trapping zones, the invention inverts the approach by having recesses in the stator ring that receive the stator cutting plates. This reversal eliminates the external protrusions that would otherwise create particle trapping areas.

Inventive Principle:

Principle #13The other way round (Inversion)

2Ease of operation

If a brush rotating inside the stator ring is used for cleaning, then some circumferential surfaces can be cleaned, but the uneven and irregularly structured surfaces remain difficult to clean thoroughly

Engineering Contradiction:

Improvecleaning accessibilityVSAvoidsurface uniformity

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The stator ring is segmented into multiple stator slots, each capable of independently receiving and securing a stator cutting plate. This segmentation allows for easier cleaning access to each segment while maintaining structural integrity and cutting performance.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Instead of having protruding features that create cleaning difficulties, the invention uses recesses in the stator ring that receive the cutting plates. This inversion creates smoother surfaces that are easier to clean thoroughly while maintaining the necessary structural functions.

Inventive Principle:

Principle #13The other way round (Inversion)

3Reliability

If rotor cutting plates are screwed to rotor cutting studs, then the cutting system achieves functional performance, but particles penetrate gaps between components creating contamination that is very difficult to remove

Engineering Contradiction:

Improvecutting performanceVSAvoidcontamination risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The invention removes the screw connections between rotor cutting plates and rotor cutting studs, extracting the gaps that allow particle penetration. The rotor cutting plates are integrated directly onto the studs, eliminating the gaps where contamination could occur while maintaining cutting performance.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The rotor cutting plates are merged directly with the rotor cutting studs through integral formation or direct attachment, eliminating the separate connection elements that create gaps. This merging creates a more seamless structure that prevents particle penetration and contamination.

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP4382208B1Cutting system with stator ring and cutting rotor as well as stator ring for such cutting system

Publication Date: 2026.04.15 BÜSSENSCHÜTT ANGELIKA

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Figure 5~10

AI summary

The invention relates to a cutting system (10) with a stator ring (12) and a cutting rotor (14, 14') rotatably arranged within the stator ring (12), wherein the stator ring (12) has a plurality of stator slots (20) and slot-like openings (22). A stator slot (20) is arranged between each pair of adjacent slot-like openings (22), wherein a stator cutting plate (24) associated with the stator slot (20) is provided on an inner surface of a stator slot (20) facing the central axis (16) of the stator ring (12). The cutting rotor (14, 14') has a plurality of rotor cutting slots (38) which are designed such that they pass by the stator cutting plates (24) during the cutting operation of the cutting system (10).With regard to applications with high hygiene requirements, especially for reliable cleaning, each stator cutting plate (24) has a front guide strip (50) and a rear guide strip (52), wherein the front guide strip (50) and the rear guide strip (52) surround the stator stud (20) to which the stator cutting plate (24) is assigned.