Star Wheel Container Spacing Mechanism
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Solution Overview
Problem
Existing container separation and testing devices fail to maintain a consistent, reproducible distance between containers, leading to potential wobbling and increased risk of containers falling during transfer, especially for containers with polygonal, angular, or rectangular cross-sections.
Innovation Solution
A device featuring an executing star wheel with evenly distributed receptacles and a guide rail, adapted to the container's cross-section, ensures individual and predetermined spacing, preventing self-rotation and wobbling by transitioning from step-by-step to continuous movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a continuously moving executing device is used to transfer containers from a stepwise processing star wheel, then productivity is improved, but the containers cannot be sufficiently separated and maintained at consistent distances
Solution Approach 1:
The executing device is segmented into multiple star wheels (first executing star wheel and second executing star wheel) that work in sequence. Each star wheel has pockets that individually hold and transfer containers, ensuring consistent spacing while maintaining continuous operation. The segmentation allows the system to process containers continuously while maintaining precise inter-container distances through the structured pocket arrangement.
2Productivity
If containers are transferred from stepwise to continuous movement, then productivity increases, but containers may wobble or self-rotate during transition
Solution Approach 1:
The first executing star wheel performs preliminary action by initially receiving containers from the processing star wheel in a controlled, stepwise manner. This preliminary stage allows containers to be properly oriented and stabilized before the second executing star wheel takes over for continuous transfer. The two-stage execution ensures that containers are ready for continuous movement without wobbling or self-rotation.
Solution Approach 2:
The first executing star wheel acts as an intermediary between the processing star wheel and the second executing star wheel. It mediates the transition from stepwise to continuous movement by providing a buffer zone where containers can be stabilized. This intermediary stage prevents direct abrupt transitions that would cause containers to wobble or self-rotate.
3Manufacturing precision
If the executing device is adapted to container cross-section, then separation precision is improved, but device complexity increases
Solution Approach 1:
The star wheels are designed with universal pockets that can accommodate different container cross-sections (round, square, rectangular, polygonal). The same basic star wheel structure serves multiple container types by adjusting pocket orientation and configuration, rather than requiring completely different executing devices for each container shape. This multi-functionality reduces overall device complexity while maintaining precision.
Data Source
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AI summary
The invention relates to a device (10) for separating and/or testing containers (14), the device comprising at least one processing star wheel (11) that can be driven step-by-step and that is used to feed containers (14) to at least one processing system (21, 45), and comprising a continuously drivable delivery system (13) for delivering the containers (14) from the processing star wheel (11). In order to deliver the containers (14) from the processing star wheel at a sufficiently large interval and/or at a substantially identical, in particular reproducible interval, by means of the delivery system (13), the device (10) according to the invention is characterised in that the delivery system (13) has at least one delivery star wheel (25).