Conveyor Belt Platform With Pivoting Rail Guide
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Solution Overview
Problem
Conventional conveyor belts with flat surfaces struggle to maintain a continuous guide surface during curved movements, leading to potential gaps that can hinder the transportation of articles, especially around bends, due to the lack of vertical support for items like boxes with corners.
Innovation Solution
The design incorporates platform members with a rail member featuring an undercut portion and a slot, allowing adjacent platform members to pivot and maintain a continuous guide surface by overlapping extensions and slots, ensuring no gaps form during turns, and providing vertical support to prevent item interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If platform members have flat surfaces without vertical end walls, then the structure is simple and easy to manufacture, but gaps form between links during curved movements causing articles to shift laterally
Solution Approach 1:
The platform member is segmented into a base portion and a rail member portion. The rail member is a separate component that attaches to the base portion, allowing the lateral support function to be added without complicating the overall platform structure. This segmentation enables modular manufacturing where the base portion can be produced independently and then combined with the rail member.
Solution Approach 2:
The invention transitions from a two-dimensional flat platform surface to a three-dimensional structure by adding vertical rail members. These rail members extend upward from the platform surface, creating a new vertical dimension that provides lateral containment for articles without compromising the simplicity of the base platform structure.
2Reliability
If vertical rail members are added to platform members, then lateral support for articles is improved, but the complexity of the platform structure increases
Solution Approach 1:
The platform member is divided into functional segments: a base portion that provides the platform surface and a separate rail member that provides lateral support. This segmentation allows each component to be optimized independently and simplifies assembly, as the rail member can be attached to the base portion without requiring complex integration.
Solution Approach 2:
The rail member serves multiple functions: it provides lateral support for articles, acts as a guide for articles during conveyance, and serves as an attachment point for connecting adjacent platform members. By consolidating these functions into a single component, the overall structure complexity is reduced despite the added vertical dimension.
3Strength
If platform members are rigidly connected, then structural strength is maintained, but the conveyor cannot curve or adapt to different paths
Solution Approach 1:
The connection between adjacent platform members is made dynamic rather than rigid. The rail members are designed to pivot relative to each other, allowing the conveyor belt to curve and adapt to different paths. This dynamic connection maintains structural strength during straight conveyance while enabling flexibility during curved movements.
Solution Approach 2:
The angular parameter between adjacent rail members can change to accommodate curved paths. The rail members are designed with pivot joints that allow the angle between connected members to vary, enabling the conveyor to navigate curves while maintaining the structural integrity of each individual platform member.
4Reliability
If slots and extensions are designed to overlap during pivoting, then continuous guide surface is maintained during turns, but manufacturing precision requirements increase
Solution Approach 1:
The slot and extension are designed with a nested relationship where the extension of one rail member fits within the slot of the adjacent rail member during pivoting. This nesting arrangement ensures that the guide surface remains continuous as the conveyor curves, while the overlapping design provides tolerance compensation that reduces the stringency of manufacturing precision requirements.
Solution Approach 2:
The slot and extension are pre-designed with complementary geometries that automatically align during the pivoting motion. The preliminary design of the slot extension ensures that as the rail members pivot, the extension smoothly enters and travels within the slot, maintaining guide surface continuity without requiring high-precision alignment during operation.
Data Source
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AI summary
A surface platform for a conveyor belt includes a platform member (12) having an upper surface (38) and a rail member (28) at one side of the upper surface (38). One end of the rail member (28) has an undercut portion (22) defining an extension (42), and the other end of the rail member (28) defines a slot (44), the slot (44) and extension (42) being complimentarily sized.