Transfer Drum Segmentation for Tablet Distribution Productivity
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Solution Overview
Problem
Current machines for distributing tablets are limited by the maximum transfer speed of tablets through transfer pipes, which restricts productivity due to factors like wear, friction, and overheating, and are unable to significantly increase production without enlarging the machine or strip sizes.
Innovation Solution
The machine employs 'n' alignment channels and transfer pipes, with a transfer drum featuring two groups of gripper and transport elements that pick up and deliver double the number of tablets, allowing for increased productivity without increasing pipe speed or machine size, by alternately loading and unloading tablets into 'n' compartments or alveoli.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transfer speed of tablets through transfer pipes is increased to improve productivity, then the productivity increases, but the wear, friction, and overheating of tablets increases
Solution Approach 1:
The invention divides the tablet transfer process into two independent parallel streams: a first stream for odd-positioned alveoli and a second stream for even-positioned alveoli. Each stream has its own dedicated transfer pipes and alignment channels, allowing tablets to be transferred at optimal speed without excessive wear, friction, or overheating, while still achieving doubled productivity through parallel processing.
2Productivity
If the size of the machine or strip is increased to accommodate more alveoli to improve productivity, then the number of blisters that can be fed simultaneously increases, but the machine size increases
Solution Approach 1:
The invention introduces a temporal dimension to the transfer process by alternating between first and second transfer pipes in a sequential manner. Instead of increasing the spatial capacity of the machine to handle more alveoli simultaneously, the system uses time-based alternation to serve multiple alveoli, thereby achieving doubled productivity without increasing the machine's physical footprint.
3Productivity
If the number of alveoli that can be fed simultaneously is increased to improve productivity, then the productivity increases, but the strip size increases
Solution Approach 1:
The invention segments the strip into two independent sets of alveoli: odd-positioned alveoli served by the first transfer pipe and even-positioned alveoli served by the second transfer pipe. This segmentation allows the system to process tablets for multiple alveoli simultaneously through parallel operations, effectively doubling productivity without requiring a longer strip.
4Productivity
If the transfer drum picks up and delivers double the number of tablets to increase productivity, then the productivity doubles, but the complexity of the drum increases
Solution Approach 1:
The transfer drum is segmented into two distinct functional groups: a first group of gripper and transport elements that cooperate with the first transfer pipe for odd-positioned alveoli, and a second group that cooperates with the second transfer pipe for even-positioned alveoli. This segmentation allows the drum to handle double the number of tablets through parallel operations while maintaining manageable complexity through modular organization.
Solution Approach 2:
The invention introduces dynamic positioning capability to the transfer drum through a positioning means that can reciprocally position the mobile gripper and transport elements axially along the drum's circumference. This dynamic adjustment enables the drum to alternately align with first and second transfer pipes, facilitating the doubled productivity while managing the complexity through controlled movement rather than fixed complex structures.
Data Source
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AI summary
The invention concerns a machine for distributing tablets on a support strip having a determinate number “n” of compartments or alveoli organized in parallel rows and each able to hold at least one tablet. The machine comprises a separation, preparation and alignment device, a conveyor device with transfer pipes and a rotating transfer drum provided with seatings on an external surface. The seatings are made on distinct gripping and transport elements, disposed peripherally and axially to the transfer drum.