Modular Conveyor Belt Segmentation for Bulk Transfer
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Solution Overview
Problem
Motorized transfer apparatuses for bulk objects with belts having articulated links face issues with elongation, leading to incorrect actuator gear function and speed variations, which existing solutions attempt to address with internal tensioning rollers but result in increased size and cost.
Innovation Solution
A compact motorized transfer apparatus with a conveyor belt comprising modular elements and a triangular sliding surface, where each modular element's length is limited to prevent excessive elongation, and drive gears engage with the belt through a system of rounded connecting portions to maintain smooth operation without internal tensioning rollers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the belt with articulated links is made longer to improve transport capacity, then the productivity increases, but the belt elongation becomes excessive causing actuator gear malfunction and speed variations
Solution Approach 1:
The belt is divided into modular elements with a limited number of segments. By constraining the maximum number of modular elements, the total length and potential elongation are controlled, preventing actuator gear malfunction while maintaining adequate transport capacity through optimized module design and arrangement.
2Reliability
If internal tensioning rollers are added to prevent belt elongation, then the reliability improves, but the device complexity and size increase
Solution Approach 1:
The tensioning function is extracted from the internal mechanism and replaced by a structural constraint on the belt's maximum length. By limiting the number of modular elements rather than using active tensioning rollers, the patent eliminates complex internal components while maintaining reliable elongation control through passive design.
3Productivity
If the belt with articulated links is made longer to reduce the number of transfers, then the productivity improves, but the belt elongation causes unwanted speed variations
Solution Approach 1:
The belt is segmented into a controlled number of modular elements, balancing transport capacity with speed stability. This segmentation prevents excessive elongation that would cause speed variations while maintaining enough length for efficient transport, optimizing both productivity and speed constancy.
Data Source
AI summary
A motorized transfer apparatus is described, comprising: a conveyor belt movable along a predetermined feeding direction and comprising a plurality of modular elements arranged in closed loop; a support structure comprising a sliding surface having a substantially cross-sectional triangular shape, so as to form in sequence: a first flat portion, which is substantially horizontal and which defines a transport plane for the objects transported by said conveyor belt, a second flat portion, which defines a descent path for the conveyor belt, and a third flat portion, which defines an ascent path for said the conveyor belt. The apparatus further comprises a motorized actuator device for the conveyor belt and a drive unit, inserted inside the support structure and arranged to transmit the motion generated by the motorized actuator device to the conveyor belt. Each modular element has a length, measured along the feeding direction, which is between 1.5% and about 6% of the overall length of the conveyor belt. The third flat portion connects the second flat portion with the first flat portion.