Rotatable Sleeve Gate for Bidirectional Conveyor Sorting
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Solution Overview
Problem
Conventional conveyor gates often damage fragile goods and pose safety hazards due to their operation, and they lack flexibility in directing goods to multiple destinations, with limitations in elevation and unidirectional movement.
Innovation Solution
An adjustable gate with a rotatable sleeve that can be positioned to allow all or selected goods to pass through or drop off, enabling flexible direction of goods to various receiving structures, and allowing bidirectional movement by strategically placing the gate within a conveyor run.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional slide mechanism is used to open and close the gate, then the gate can control the flow of goods, but fragile goods are damaged when the gate is moved from open to closed position
Solution Approach 1:
The gate mechanism is changed from a conventional slide to a rotatable sleeve that rotates between open and closed positions. This dynamic rotation eliminates the abrupt linear movement that causes goods damage, allowing the gate to smoothly transition between states while maintaining control over goods flow.
Solution Approach 2:
The conventional mechanical slide mechanism is replaced with a rotatable sleeve mechanism. This substitution changes the fundamental motion type from linear sliding to rotational movement, which eliminates the harmful impact on fragile goods during gate operation.
2Extent of automation
If a powered slide mechanism is used to operate the gate, then the gate can be automated, but a closing gate may capture a finger or clothing of an equipment operator
Solution Approach 1:
The gate uses rotational movement instead of linear sliding, which fundamentally changes the closing motion. This dynamic approach allows for smoother, more predictable movement that reduces the risk of sudden closures that could trap fingers or clothing, while still maintaining automated operation capability.
Solution Approach 2:
The powered linear slide mechanism is replaced with a rotatable sleeve system. This mechanical substitution eliminates the pinching hazard inherent in linear slide gates while preserving automated control, as the rotation mechanism cannot easily trap body parts in the same way.
3Adaptability or versatility
If goods are dropped through the opening in the rotatable sleeve or off the end of the gate, then goods can be directed to a lower receiving conveyor, but the receiving structure must be very close to the gate
Solution Approach 1:
The gate design incorporates an elevated discharge position that extends vertically above the conveyor run. This dimensional change allows goods to be dropped from a higher point, creating additional vertical space and enabling the receiving structure to be positioned further away horizontally, thus increasing flexibility in system layout.
Solution Approach 2:
The rotatable sleeve acts as an intermediary mechanism that can selectively direct goods either through its opening or over the end of the gate. This intermediary function provides multiple discharge paths and positions, allowing goods to be routed to receiving structures at various distances and locations.
4Adaptability or versatility
If the gate is positioned to drop goods near the gate, then goods can be directed to a lower conveyor, but this results in unwanted crowding of the process area underneath the gate
Solution Approach 1:
By elevating the discharge position above the conveyor run, the gate creates vertical clearance that separates the discharge area from the area underneath the gate. This dimensional separation allows goods to be discharged to a lower conveyor without crowding the process area directly beneath the gate, as the two areas are vertically separated.
Solution Approach 2:
The elevated gate structure serves as an intermediary that redirects goods discharge to a location removed from the crowded area underneath the gate. This intermediary positioning allows goods to be transferred to a lower conveyor run without occupying the valuable process space directly below the gate.
Data Source
AI summary
A conveyor run for moving goods to two or more destinations can be used to move a first fraction of the goods to a first destination and a second fraction of the goods to another destination. A drive motor coupled to a conveyor portion is reversible to enable the conveyor run to move goods in either direction along the conveyor run. An adjustable gate includes a rotatable sleeve with an opening that is positionable relative to conveyor portions between which the adjustable gate is connected. The rotatable sleeve rotates relative to the adjacent conveyor portions to position the opening to set the fraction of the goods that pass from an upstream conveyor portion to the downstream conveyor portion and to set the fraction of the goods that drop from the conveyor run through the opening.