Food-Grade Bearing Casing With Raised Flange Mounting
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Solution Overview
Problem
Existing casings for food applications in the bakery industry require complex molds and increased production costs due to the need for integrated supports without a shaped gasket, which are not necessary for applications where high-pressure air jet washing is used, and pose risks of bacterial infiltration.
Innovation Solution
A casing design with a polymeric body, metal bushings, spacers, and inserts that raise the base surface, allowing for a stand-out configuration without a gasket, ensuring secure attachment and easy assembly, using stainless steel spacers and blue-colored inserts for alignment and detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If integrated supports are designed into the casing to raise the base surface, then the casing achieves stand-out configuration suitable for bakery applications, but the mold complexity and production costs increase
Solution Approach 1:
The integrated support structure is divided into multiple modular components: spacers (50) that raise the base surface, inserts (60) that provide alignment features, and bushings (40) that support fastening elements. These segmented components can be manufactured separately using standard molds and then assembled, avoiding the need for complex integrated molds while achieving the stand-out configuration.
Solution Approach 2:
The spacers (50) act as intermediary elements between the casing flange portion (30) and the machine frame, raising the base surface to create the stand-out configuration. The inserts (60) serve as intermediaries that facilitate alignment and detection during assembly. By introducing these intermediary components, the patent achieves adaptability without requiring complex mold designs.
2Object-affected harmful factors
If the casing base is positioned close to the machine frame, then sealing is required to prevent bacterial infiltration, but washing accessibility and drying efficiency are reduced
Solution Approach 1:
The patent extracts the sealing function from the traditional gasket-based solution and replaces it with a raised base configuration. By taking out the gasket and using spacers to elevate the base surface, the design eliminates the sealing requirement while improving washing accessibility and drying efficiency through better air circulation.
Solution Approach 2:
The patent changes the spatial relationship between the casing base and machine frame by adding vertical dimension through spacers. This dimensional change raises the base surface, creating space for air circulation that simultaneously prevents bacterial infiltration and improves washing accessibility, resolving the contradiction between sealing and ease of operation.
3Reliability
If a shaped gasket is overmoulded onto the casing base, then sealing is ensured to prevent water and bacteria infiltration, but the production complexity and costs increase
Solution Approach 1:
The patent removes the shaped gasket from the design entirely, extracting the sealing function and replacing it with a raised base configuration using spacers. This elimination of the gasket component simplifies production by removing the overmolding process while maintaining reliability through the elevated base design that prevents water and bacteria infiltration.
Solution Approach 2:
The patent replaces the expensive, complex shaped gasket with simpler, cheaper spacer components that can be manufactured using standard molds. The spacers provide the necessary functionality without requiring costly overmolding processes, reducing production complexity and costs while maintaining the required reliability.
4Ease of manufacture
If the casing is designed without a gasket for stand-out configuration, then production costs are reduced, but assembly precision and alignment may be compromised
Solution Approach 1:
The inserts are made blue-colored to provide visual detection and alignment reference during assembly. This color feature enables workers to easily locate and align components without requiring complex alignment features or precision machining, maintaining manufacturing precision while using simpler, cheaper components that reduce production costs.
Solution Approach 2:
The inserts (60) serve as intermediary alignment elements that facilitate precise assembly without requiring complex integrated features. These simple inserts provide reference points for alignment, enabling accurate assembly of the stand-out configuration using standard molds and reducing production costs while maintaining manufacturing precision.
Data Source
AI summary
The casing (10) of a support assembly for food applications has a housing portion (20) having a through-seat (25) within which a bearing unit is seated. The casing has a flange portion (30) for fixing the casing to a machine. The flange portion has a base surface (35) and at least two through-holes (32) for housing elements for fixing the casing to the machine. The casing has at least two metal bushings (40), equal in number to the number of through-holes, housed stably inside respective through-holes and coaxial with them. The casing has at least two spacers (50), equal in number to the number of through-holes, applied on the base surface of the flange portion opposite the respective through-holes. The casing has at least two inserts (60), equal in number to the number of spacers, and housed with interference inside the respective metal bushings and inside the respective spacers.