OR-linked Triggering for Conveyor Stream Merging
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Solution Overview
Problem
Current conveyor systems face complexity in controller management and low throughput when handling multiple destinations and objects, making operation and commissioning difficult.
Innovation Solution
Implementing an OR-linked triggering system downstream of conveyor technology elements to release stopping devices, allowing objects to be forwarded based on the presence of preceding objects, which reduces the need for precise sequencing and increases throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simplified controller triggers release based on single sensor detection, then device complexity is reduced, but throughput decreases
Solution Approach 1:
Multiple triggering devices are combined through OR-linking to a single stopping device control logic. This allows the system to maintain simplicity while improving throughput, as any of the multiple triggering devices can independently trigger the release of the conveyed object, eliminating the need for complex sequential control while enabling higher object flow rates.
2Manufacturing precision
If precise sequencing control is implemented, then object routing accuracy is improved, but device complexity and commissioning difficulty increase
Solution Approach 1:
The system implements partial sequencing control where exact sequential ordering is not strictly enforced. Instead of requiring precise timing and positioning of each object, the system allows some flexibility in sequencing while maintaining sufficient routing accuracy through the OR-linked triggering mechanism. This reduces control logic complexity while achieving adequate routing performance.
3Productivity
If multiple triggering devices are OR-linked to release stopping devices, then throughput is increased, but the probability of blockages increases
Solution Approach 1:
The system uses triggering devices that detect the presence of conveyed objects and provide feedback to the stopping device control logic. When an object is detected by any of the OR-linked triggering devices, the stopping device is released. This feedback mechanism allows the system to adapt to actual object flow conditions, maintaining high throughput while the controller can respond to blockage conditions by adjusting the release timing based on real-time object detection.
Data Source
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AI summary
The invention relates to a method for combining conveyor streams on a conveying technology element (Ka..Kc, K1..K34) having a number of ingoing conveyor segments (1a, 1b), at least one coupling (2) to an outgoing conveyor segment (3) on which the ingoing conveyor segments (1a, 1b) are brought together, and a number of holding devices (4a, 4b) for holding a conveyor flow on the ingoing conveyor segments (1a, 1b). In addition, a number of release devices (A, A1..A22) are provided for releasing a holding device (4a, 4b) or a conveyor object (17), said release devices being arranged downstream of the ingoing conveyor segments (1a, 1b), and being logically connected via an OR-connection. A holding device (4a, 4b), or a conveyor object (17) waiting at same, is then respectively released when a conveyor object (17), arranged in front of the waiting conveyor object (17) in a sorting order, passes one of the connected release devices (A, A1..A22), or when there is no preceding conveyor object (17). The invention also relates to a conveying technology element (Ka..Kc, K1..K34) for carrying out said method.