Lock Nut Blade Assembly for Bakery Slicers
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Solution Overview
Problem
Current blade assemblies in automatic slicers for baked food products require complete replacement when blades dull or become damaged, leading to significant downtime and expense, as only the blade teeth are worn, while other parts remain functional.
Innovation Solution
A lock nut blade assembly that allows for easy disassembly and reassembly, enabling individual replacement of worn blades and shafts, with the option to resharpen or recycle blades, while retaining other assembly parts, using a lock nut hub subassembly with a press-fit connection and threaded lock nut for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complete blade assemblies are replaced when blades dull, then cutting performance is restored, but production downtime and costs increase significantly
Solution Approach 1:
The blade assembly is divided into separable components: the blade can be detached from the hub assembly. This allows only the worn blade to be replaced while retaining the functional hub, drive belt, and other components, thereby reducing replacement time and cost while restoring cutting performance.
Solution Approach 2:
The blade is extracted as a separate replaceable component from the hub assembly. The hub assembly with its drive mechanism remains in place and is reused, extracting only the worn blade for replacement while keeping the majority of the assembly in service.
2Reliability
If complete blade assemblies are replaced when blades dull, then cutting performance is restored, but operational costs increase due to waste
Solution Approach 1:
The blade is discarded when worn and replaced with a new one, while the hub assembly, drive belt, and other components are recovered and reused. This reduces material waste by keeping functional components in service while only replacing the consumable blade element.
3Ease of repair
If blade assemblies are designed for easy disassembly, then maintenance cost and downtime are reduced, but assembly complexity increases
Solution Approach 1:
The blade assembly is segmented into modular components (blade, hub, drive belt) that can be easily separated and reassembled. This modular design simplifies maintenance operations while the standardized connection methods keep the overall structural complexity manageable.
Solution Approach 2:
The connection between blade and hub allows for dynamic assembly and disassembly operations. The drive belt provides flexible power transmission that accommodates easy installation and removal of the blade component without requiring complex mechanical linkages.
Data Source
AI summary
A lock nut blade assembly includes a shaft mounting a circular blade via a lock nut hub subassembly in an assembled configuration. The blade assembly is particularly configured for multi-blade slicers in production lines for sliced bread products such as buns, rolls, bagels, hoagies and chibatas. The blade assembly can be easily disassembled with hand tools for replacing or repairing worn and dull blades or shafts, while retaining other blade assembly components for continued service.