Parallel Conveyor Stacking for Compact Blister Pack Transfer
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Solution Overview
Problem
Existing devices for transferring blister packs to transport systems are limited by their large size and inability to be combined with various downstream devices, restricting further processing and occupying excessive space.
Innovation Solution
A device with a feed unit and transfer station featuring parallel temporary storage lines with flaps and a pusher, allowing for efficient transfer and storage of items in a compact space, enabling compatibility with diverse transport systems and storage devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If two parallel conveyor belts are used to transport blister packs in offset stacks, then the transfer capability is improved, but the device occupies a relatively large amount of space
Solution Approach 1:
The patent transitions from a horizontal conveyor belt arrangement to a vertical stacking arrangement. Items are deposited onto a first conveyor belt and then stacked vertically onto a second conveyor belt, utilizing the vertical dimension to reduce horizontal space requirements while maintaining transfer capability.
Solution Approach 2:
The patent implements a nested structure where the second conveyor belt is positioned within the vertical space occupied by the first conveyor belt's stacking operation. The offset stacking allows the second belt to be nested below or beside the first, reducing overall device footprint.
2Manufacturing precision
If conveyor belts work in cycles to form lines of closely spaced items, then the transfer precision is improved, but the device occupies a relatively large amount of space
Solution Approach 1:
The patent uses vertical stacking to achieve precise item placement without requiring large horizontal spaces. By depositing items in offset stacks onto a second conveyor belt positioned vertically, the system maintains precision while reducing the horizontal footprint of the device.
3Manufacturing precision
If a vacuum belt is used to bring items up into position one by one, then the transfer accuracy is improved, but the device becomes mechanically complicated and occupies a large amount of space
Solution Approach 1:
The patent divides the transfer process into discrete stages: items are first deposited onto a first conveyor belt, then transferred to a second conveyor belt in offset stacks. This segmentation simplifies the mechanism compared to a continuous vacuum belt system, reducing mechanical complexity while maintaining accuracy.
4Productivity
If stacks of items are pushed together transversely to form a line, then the transfer efficiency is improved, but the device becomes more complex and space-consuming
Solution Approach 1:
The patent combines the stacking and lining operations into a single integrated process. Items are deposited onto the second conveyor belt in offset stacks and then pushed together transversely to form a continuous line, merging two functions into one efficient operation that does not significantly increase device complexity.
Data Source
AI summary
A device for transferring items to a transport system or to a storage unit has a feed unit for conveying a plurality of items in at least one feeding line. Further, it has a transfer station for receiving the items from the feed unit and for transferring the items to the transport system or to the storage device. The transfer station includes two temporary storage lines arranged in parallel. The items are provided by the feed unit in a manner that the items in the first temporary storage line are arranged offset from the items in the second temporary storage line. The temporary storage surfaces in the first temporary storage line have at least one flap to be opened. A pusher in the transfer station is adapted to push the items from the second temporary storage line to the first temporary storage line.