Tray Handling Mechanism for Tablet Packaging Efficiency
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Solution Overview
Problem
The existing tablet packaging device has inefficiencies in operation time and is prone to erroneous packaging due to the need to keep the tray on a drawer until tablets are discharged, and tablets can bounce out of the tray recesses during dispensing.
Innovation Solution
A tablet packaging device with a tray driving unit that moves the tray between loading and unloading positions, using an XY robot to position the tray accurately above a dispensing port, and a manual-distribution unit with shutters to ensure precise tablet placement into the tray recesses, reducing the need for the tray to be on the loading unit during packaging and minimizing tablet movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the tray is kept on the drawer until tablets are discharged, then the tablet packaging device can maintain a simple structure, but the operation efficiency deteriorates because the next tray cannot be loaded until the current discharge operation is completed
Solution Approach 1:
The tray handling process is segmented into separate loading and unloading operations. The tray loading unit and tray unloading unit operate independently, allowing one tray to be loaded while another is being discharged. This segmentation eliminates the bottleneck where the entire system had to wait for discharge completion before the next loading could begin.
Solution Approach 2:
The tray driving unit acts as an intermediary mechanism between the loading and unloading positions. It moves trays between these positions and enables the tray to be detached from the loading unit after attachment to the driving unit, allowing parallel operations of loading and discharging without direct interference between these processes.
2Reliability
If tablets are dispensed directly into the tray recesses, then the packaging process can be simplified, but erroneous packaging occurs when tablets bounce out of the recesses during dispensing
Solution Approach 1:
The manual-distribution unit with shutters performs preliminary action by controlling and guiding tablets into the tray recesses before the final packaging is complete. The shutters regulate tablet flow and ensure tablets are properly positioned in each recess, preventing bouncing and erroneous packaging before the process concludes.
Solution Approach 2:
The patent replaces simple gravity-based dispensing with a more controlled mechanical system featuring shutters and a manual-distribution unit. This substitution provides precise control over tablet placement, ensuring reliability by preventing tablets from bouncing out of recesses, though it increases mechanical complexity.
Data Source
AI summary
A tablet packaging device capable of shortening operation time required for packaging tablets for one tray. The tablet packaging device includes a packaging portion configured to accommodate tablets dispensed from a dispensing port into a tray. The packaging portion includes: a tray loading unit to which the tray is mountable; a tray unloading unit to which the tray accommodating the tablets is mountable; a tray driving unit, which is configured to removably support the tray, move the supported tray among positions of the dispensing port, the tray loading unit, and the tray unloading unit, and move the desired accommodation recess portion to the dispensing port for tablets; a tray attaching unit configured to attach the tray from the tray loading unit to the tray driving unit; and a tray detaching unit configured to detach the tray from the tray driving unit and place the tray on the tray unloading unit.