Bead Singulator Using Rotating Protection Nest
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Solution Overview
Problem
Current methods for separating and delivering lyophilized beads are unreliable and prone to damage due to the static properties, low mass, and delicate nature of the beads.
Innovation Solution
A bead singulator and dispenser system featuring a bulk hopper, a rotating protection nest with a pocket to retain a single bead, a singulation tube with buffer zones, and a vacuum source to gently separate and transfer the beads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If vacuum cup force is used to pick up beads, then beads can be held securely, but bead damage increases due to vacuum cup force and indentations
Solution Approach 1:
The patent extracts the harmful vacuum cup contact interface by replacing it with a protective well structure. The bead is held by gravity and geometry within the well rather than by vacuum suction, eliminating the source of damage while maintaining secure holding.
Solution Approach 2:
The protective well structure serves as beforehand cushioning by providing a gentle, damage-free holding environment for the bead before transfer. The well's geometry and surface properties are designed to cradle the bead without applying concentrated forces that would cause damage.
2Productivity
If shearing technique with pressurized air is used to separate beads, then bead separation can be achieved, but bead damage increases due to sliding and fragmentation
Solution Approach 1:
The patent removes the harmful shearing action and pressurized air mechanism entirely, replacing them with a gentle vacuum-based pickup system that isolates individual beads without subjecting them to damaging mechanical or pneumatic forces.
Solution Approach 2:
The patent replaces the mechanical shearing system with a vacuum field-based pickup system. Instead of using mechanical force to separate and transfer beads, the system uses controlled vacuum application to gently attract and hold individual beads for transfer.
3Reliability
If additional separation step is added before vacuum pickup, then bead pickup reliability improves, but device complexity increases
Solution Approach 1:
The patent merges the separation and pickup functions into a single integrated operation. The protective well structure serves dual purposes: it separates individual beads from the bulk material and simultaneously provides the pickup location, eliminating the need for a separate pre-separation step.
Solution Approach 2:
The protective well structure performs multiple functions: it acts as a separation mechanism, a holding structure, and a transfer interface. This multi-functionality reduces the number of separate components and steps needed in the system.
4Reliability
If high vacuum is used to hold beads securely, then bead holding reliability improves, but bead damage increases due to increased vacuum cup force
Solution Approach 1:
The patent extracts the vacuum application from direct contact with the bead, using it only to hold the protective well structure. The bead itself is secured by gravitational and geometric constraints within the well, eliminating the need for high vacuum forces that would damage the bead.
Solution Approach 2:
The protective well structure serves as an intermediary between the vacuum system and the bead. The vacuum holds the well, which in turn gently holds the bead, preventing direct transmission of damaging vacuum forces to the bead while maintaining secure holding.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system effectively and reliably separates individual beads from bulk, reduces bead damage, and enables precise delivery, improving the efficiency and accuracy of bead singulation and dispensing.
Implementation Method 1
a vacuum source configured to draw beads from the bulk hopper into the singulation tube
Data Source
AI summary
Devices and methods are disclosed for singulating and dispensing a bead. A bulk hopper holds and presents a plurality of beads to a singulation tube that defines a pathway from the bulk hopper to a rotating protection nest. The rotating protection nest has a pocket configured to retain a single bead. A vacuum source is configured to draw beads from the bulk hopper into the singulation tube when the pocket of the rotating protection nest is in a pickup position and aligned with the singulation tube until a single bead is seated within the pocket. The singulation tube may define one or more buffer zones and/or a separation threshold to control delivery of beads from the bulk hopper to the protection nest. The bulk hopper may have a tapered rotating disk to deliver beads to the singulation tube.