Pivotable Conveyor Transfer Assembly for Protrusion Clearance
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Solution Overview
Problem
Conveyor systems with protrusions, such as shoes or flights, face interference issues when transfer plates are positioned too close, leading to damage due to lack of clearance for protrusions to pass around drive or idle sprockets, especially when transferring articles between conveyors.
Innovation Solution
A transfer assembly with pivotable side rails and cantilevered portions that pivot away from the conveyor belt upon contact with protrusions, using a shaft and stop faces to limit angular range, allowing protrusions to pass safely and return to their original position by gravity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a stationary transfer plate is positioned close to the conveyor belt to prevent article tipping, then article transfer stability is improved, but protrusions on the belt will hit the transfer plate causing damage
Solution Approach 1:
The transfer assembly is made dynamically movable rather than stationary. It can pivot between a retracted position (clearing protrusions) and an extended position (supporting articles), allowing it to adapt its position based on operational requirements rather than remaining fixed in one location.
Solution Approach 2:
The transfer assembly proactively pivots to a retracted position before protrusions reach the transfer zone, preventing contact damage before it occurs. This preliminary positioning action eliminates the harmful interaction between protrusions and the transfer plate.
2Object-affected harmful factors
If the transfer assembly is positioned to clear protrusions, then protrusion interference is eliminated, but the gap becomes too large causing articles to tip over
Solution Approach 1:
The transfer assembly transitions from a static structure to a dynamic one that can change position. By pivoting to the extended position, it reduces the gap to prevent article tipping, and to the retracted position to clear protrusions, thus resolving the contradiction through temporal separation of these opposing requirements.
Solution Approach 2:
The transfer assembly undergoes periodic positioning changes - extending to support articles and retracting to clear protrusions - in a cyclical manner that matches the conveyor operation rhythm. This periodic action allows the system to satisfy both contradictory requirements at different times in the operational cycle.
3Object-affected harmful factors
If shoes are moved to known positions to provide clearance, then protrusion damage is prevented, but device complexity increases
Solution Approach 1:
The transfer system is segmented into modular components - the transfer assembly with its pivot mechanism, the side rails, and the connecting members. This segmentation allows the clearance function to be achieved through a focused, simple pivotable structure rather than a complex system-wide shoe positioning mechanism.
Solution Approach 2:
The pivotable transfer assembly acts as an intermediary element between the conveyor belt and the article transfer zone. Instead of modifying the entire shoe sorter system to provide clearance, this intermediate component absorbs the clearance requirement through its movable design, protecting the main system from complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents damage by allowing protrusions to clear the transfer assembly, ensuring smooth operation and reducing the risk of interference, while maintaining a small gap for article transfer, thus enhancing conveyor system efficiency.
Implementation Method 1
a shaft extending through the bore and defining a pivot axis perpendicular to the conveying direction about which the pivot portion and the cantilevered portion are pivotable away from the first conveyor belt by contact with the protrusions on the reversing path and back toward the first conveyor belt by gravity when not in contact with the protrusions
Data Source
Figure 1A~1B
Figure 2~3B
Figure 4A~4C
AI summary
A conveyor system with a pop-up transfer assembly for transferring articles off the end of conveyor belt having protrusions extending above the belt's outer conveying surface. The transfer assembly is cantilevered over the reversing path of the conveyor belt from a pivot. When a protrusion from the belt hits the transfer assembly, the transfer assembly pivots away from the belt about the pivot. When the protrusion is clear, the transfer assembly drops, by gravity, back to its home position proximate the belt. A bilateral transfer assembly is cantilevered in opposite directions to transfer articles off the end of one conveyor belt onto another conveyor belt that may or may not have protrusions.