Centrifugal Cutting Head With Adjustable Gaps for Slice Integrity
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Solution Overview
Problem
Centrifugal cutting apparatuses with high rake-off angles (e.g., 20.5°) cause cracking of food slices, particularly in potato slices.
Innovation Solution
Adapt the rear part of the product sliding surface at the trailing end of each cutting station to reduce the rake-off angle to below 17°, preferably between 12° and 15°, by modifying the curvature or making it straight, and adjust the gap size to minimize cracking while accommodating the cutting element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the rake-off angle is increased to 20.5° or more as in prior art centrifugal cutting apparatuses, then the cutting element can be accommodated and the cutting process can be performed, but the food slices especially potato slices are prone to cracking
Solution Approach 1:
The inner wall of the cutting station is designed with different curvatures in different regions: a first curvature in the main cutting area and a second, reduced curvature in the rear part near the trailing end. This local differentiation allows the rear part to reduce the rake-off angle and prevent slice cracking, while the main cutting area maintains the geometry needed for proper cutting element accommodation and function.
2Object-affected harmful factors
If the rear part of the product sliding surface is adapted with reduced curvature to decrease the rake-off angle below 17°, then the risk of food slice cracking is reduced, but the physical space to accommodate the cutting element becomes more constrained
Solution Approach 1:
The inner wall is designed with differentiated curvatures: the rear part has reduced curvature to minimize slice cracking, while the main cutting area retains the original curvature to provide adequate space for the cutting element. This localized modification ensures both slice integrity and proper cutting element accommodation without compromising either function.
Solution Approach 2:
The solution addresses the spatial constraint by modifying the curvature along the axial dimension of the cutting station rather than reducing the radial or tangential dimensions. This allows the cutting element to maintain its accommodation space while the rake-off angle is reduced through geometric modification of the sliding surface profile.
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
Reduces the risk of food slice cracking by optimizing the rake-off angle and gap size, ensuring smooth slice exit and maintaining slice integrity.
Implementation Method 1
an impeller which is arranged to rotate concentrically within a cutting head so as to impart a centrifugal force to the food products to be cut
Data Source
AI summary
A cutting head for a centrifugal cutting apparatus includes a rim structure; and a plurality of cutting stations mounted onto the rim structure, each of said cutting stations comprising a cutting element for cutting food products at a leading end of the cutting station and an inner wall extending from the leading end to a trailing end and forming a product sliding surface, along which the food product slides between successive cuts. The cutting stations are assembled adjacent one another onto the rim structure in such a way that a gap is present between each pair of adjacent cutting stations through which a product slice exits the cutting head upon being cut. The cutting head also includes a gap setting mechanism for setting the radial size of the gap by adjusting the radial offset of the trailing end of the respective cutting station with respect to the rim structure.