Sickle Blade Segmented Carrier Projections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing cutting elements and knife holders for high-speed slicers are difficult to handle and lack improved properties during slicing operations, especially when handling large cutting knives that require frequent changes and high rotational speeds.
Innovation Solution
A cutting element and knife holder design featuring radially outward projections and recesses on the carrier and cutting element respectively, forming a corrugated contour for improved rigidity and stress distribution, allowing for easy detachment and reattachment of the cutting element, and enabling secure fastening with optimized force absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional one-piece sickle blade is used, then the blade can cover the working angle range, but the blade becomes large and heavy making it difficult for single-person handling during blade changes
Solution Approach 1:
The cutting blade is divided into two separable components: a carrier (support) that remains on the slicing machine and a cutting element that can be detached, resharpened, or replaced. This segmentation allows the heavy blade to be split into a stationary heavy part and a removable lighter part, enabling single-person handling during changes while maintaining the required cutting capacity and angle coverage.
2Ease of operation
If the cutting element is detachably attached to the carrier, then blade changes become easier, but the connection must withstand high rotational speeds and cutting forces
Solution Approach 1:
The connection system is segmented into multiple engagement points: radially outwardly directed projections on the carrier engage with corresponding recesses on the cutting element, creating a multi-point interlocking connection. This segmented connection approach distributes mechanical stresses across multiple contact areas, enabling the detachable design to withstand high rotational speeds and cutting forces while maintaining ease of attachment and detachment.
Solution Approach 2:
The projections and recesses are designed with curved, radially oriented geometries that conform to the rotational motion of the blade. The radially outwardly directed projections follow the radial stress distribution pattern, optimizing the connection for centrifugal forces during high-speed rotation while maintaining structural integrity under cutting loads.
3Stability of the object's composition
If projections and recesses are provided for rigid connection, then the blade structure becomes rigid for cutting operations, but the manufacturing complexity increases
Solution Approach 1:
The rigid connection is achieved through segmented projections and recesses rather than a continuous complex structure. This segmentation simplifies manufacturing by allowing each component to be produced separately with standard machining operations, then assembled through the interlocking projections and recesses, reducing overall manufacturing complexity while maintaining blade rigidity during cutting operations.
Data Source
Figure 1~3
Figure 2~4
Figure 5~6
AI summary
A cutting blade (11), in particular a sickle blade, for a machine for slicing food products, in particular a high-speed slicer, comprising a central support (13) for attaching the cutting blade (11) to the machine, and a partially ring-shaped or ring-shaped cutting element (15) which has a radially outwardly extending cutting edge (17) on its outer circumference, wherein the support (13) has a mounting area (19) on its outer circumference to which a fixing area (21) formed on the inner circumference of the cutting element (15) is detachably attached for attaching the cutting element (15) to the support (13), is characterized in thatthat, viewed in the circumferential direction (U), the fastening area (19) has at least one and preferably several offset projections (23) directed radially outwards, and the fixing area (21) has at least one and preferably several recesses (25) complementary to the projection(s) (23), to which the projections (23, 25) are assigned.