Extruded Rail Containment Cavity for Mounting Debris Control
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Solution Overview
Problem
Conventional extruded rails for conveyor frames allow contaminants like dirt and dust to accumulate due to open slots, which is undesirable in dirty or dusty environments, and existing solutions do not effectively contain metal shavings generated during the mounting process.
Innovation Solution
The extruded side rail features a receiving and containment cavity enclosed by upper, lower, and back walls, with an alignment notch indicating the cavity's location, allowing secure attachment of mounting brackets using self-drilling or hardened fasteners that enclose metal shavings within the cavity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If open slots are provided in extruded rails for mounting brackets, then mounting versatility is improved, but contaminant accumulation increases
Solution Approach 1:
The side rail is segmented into multiple functional zones: an enclosed mounting cavity for fastening operations, an open mounting channel for bracket installation, and a planar outer surface for cleanliness. This segmentation allows each zone to serve its specific function while mitigating the contaminant accumulation problem through spatial separation.
Solution Approach 2:
The mounting cavity is nested within the side rail structure, creating a contained space that prevents contaminants from escaping to the external environment. The cavity acts as a nested containment zone that isolates harmful factors generated during mounting operations.
2Ease of operation
If open mounting channels are used for bracket installation, then ease of operation is improved, but metal shavings escape into the environment
Solution Approach 1:
The harmful metal shavings are extracted from the general environment and confined to a specific containment zone within the mounting cavity. This extraction principle isolates the harmful factors to a localized area, preventing their dispersion into the surrounding environment while maintaining operational ease.
Solution Approach 2:
The mounting cavity, which could be seen as a limitation to accessibility, is converted into a beneficial containment chamber that captures and holds metal shavings. The same space that provides access for mounting operations also serves as a trap for harmful byproducts, turning a potential disadvantage into an advantage.
3Object-affected harmful factors
If the outer surface of side rails is made planar and closed, then cleanliness is improved, but mounting access is reduced
Solution Approach 1:
The side rail exhibits different local qualities: the outer surface is planar and closed for cleanliness, while the mounting cavity provides localized access for mounting operations. This local differentiation allows the rail to maintain overall cleanliness while providing necessary access points where needed, without compromising the planar surface quality in other areas.
Data Source
Figure 1
Figure 2
Figure 2a
AI summary
A conveyor frame assembly comprising a pair of spaced extruded rails for mounting objects along the length of the rail (16) that include an enclosed receiving and containment cavity (42). The extruded rail includes a receiving and containment cavity that extends from an inner surface of the rail. The receiving and containment cavity includes upper (48) and lower (50) walls and a back wall (47) that define an enclosed containment area. An alignment notch (30) is formed in the generally planar outer surface (22) of the side rail and aligned with the receiving and containment cavity. When an object is to be attached to the rail, an opening is formed in the side rail at the alignment notch. As material is removed from the side rail during formation of the opening, the received material is entrapped within the receiving and containment cavity. Thus, the extruded rail of the disclosure receives and contains some of the material removed during attachment of an object to the rail.