Slower Conveyor Stabilizes Product Flow at Discharge
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Solution Overview
Problem
Conveyor and accumulation systems face disruptions and instability at discharge points due to product bunching and nesting, especially when starting up after a shutdown, leading to reduced efficiency and potential system shutdown.
Innovation Solution
A secondary conveyor operating at a slower speed than the primary conveyor, aligned adjacent to it, forms a temporary product wall to stabilize products and prevent inward movement, ensuring smooth discharge and increased outfeed by maintaining separation between products and the discharge point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If products are discharged rapidly at the discharge location to increase outfeed rate, then productivity increases, but product stability deteriorates due to bunching and nesting
Solution Approach 1:
A product stabilizing element is introduced as an intermediary component between the products and the discharge location. This element actively prevents products from contacting the discharge point, thereby eliminating the bunching and nesting that occurs during rapid discharge. The stabilizing element mediates the interaction between high-speed product flow and the discharge location, allowing increased outfeed rates without compromising product stability.
2Productivity
If the system operates in product delivery mode with high speed conveyor to maximize efficiency, then productivity increases, but product disruptions increase due to turbulence at discharge
Solution Approach 1:
The product stabilizing element serves as a mediator that enables the system to maintain high-speed operation without the harmful effects of product turbulence. By positioning this element at the discharge location, the system can operate in delivery mode with maximum efficiency while the element continuously prevents product disruptions, ensuring reliable and continuous product flow.
Solution Approach 2:
The product stabilizing element is positioned in advance at the discharge location to prevent disruptions before they occur. This preliminary positioning allows the element to intercept and stabilize products before they can bunch or nest, maintaining reliable product flow throughout high-speed operation.
3Productivity
If a diverter gate shifts from accumulation mode to delivery mode to resume production, then productivity recovers, but product turbulence increases causing disruptions
Solution Approach 1:
The product stabilizing element is positioned in advance at the discharge location to be ready for the transition from accumulation to delivery mode. When the diverter gate switches modes and products begin flowing rapidly, the stabilizing element is already in position to immediately prevent turbulence and disruptions, ensuring stable product flow during the critical transition period.
Solution Approach 2:
The product stabilizing element provides beforehand cushioning by being positioned to intercept products before they can become unstable during mode transitions. This preparatory positioning cushions against the turbulence that naturally occurs when switching from accumulation to delivery mode, preventing disruptions before they can develop.
4Device complexity
If products are allowed to contact the discharge point to maintain simple system design, then device complexity remains low, but product bunching and nesting occur reducing outfeed efficiency
Solution Approach 1:
A product stabilizing element is introduced as a relatively simple intermediary component that prevents products from contacting the discharge location. This element eliminates bunching and nesting without requiring complex system redesign, maintaining simplicity while dramatically improving outfeed efficiency by enabling smoother, faster product discharge.
Data Source
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AI summary
A product conveying and accumulation system and method employs a primary product transporting conveyor with accumulation and re-circulating sections. The conveyor is configured to receive products from an upstream destination and discharge products to a downstream destination. A second conveyor, operable at a considerable slower speed than the first conveyor, is located in the same transverse plane as and is aligned adjacent to the first conveyor. Both conveyors travel in the same direction at the adjacent alignment. As products are discharged from the system, a wall of product is formed on the slower moving conveyor. As a result, products on the inner lane of the faster moving conveyor which would otherwise tend to move inward towards the discharge point, causing product turbulence and disruption, are urged back onto the inner lane by the product wall and then smoothly discharged from the system to the downstream destination. The use of this slower conveyor increases product stability by substantially eliminating product turbulence caused by the product bunching and nesting which normally occurs at the product discharge point. A substantially increased rate of product outfeed results.