Tablet Splitting Apparatus with Dynamic Thickness Adjustment
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Solution Overview
Problem
Existing tablet splitting apparatuses face challenges in stabilizing the splitting process due to reactive forces from holding mechanisms, leading to fluctuations in split piece dimensions and increased workload in aligning components for varying tablet shapes, especially with pharmaceutical drugs that lack pre-measured data.
Innovation Solution
A tablet splitting apparatus with a guide, catcher, and splitting mechanism that includes a groove-depth defining member and thickness adjusting mechanism, controlled by a sensor and controller to automatically determine the relative distance based on tablet thickness, and a dust separating mechanism using a rotating partitioning plate to efficiently separate dust from split pieces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a holding mechanism is used to hold tablets at a splitting position, then tablets can be stabilized for cutting, but reactive forces from the holding mechanism cause fluctuations in split piece dimensions
Solution Approach 1:
The patent removes the holding mechanism from the splitting system, allowing tablets to fall and split without being held. This extraction eliminates the reactive forces that caused dimensional fluctuations, resolving the contradiction between precision and stability by eliminating the source of interference entirely.
Solution Approach 2:
The patent applies preliminary anti-action by using a guide passage with specific geometric features (flat portion, facing section, groove-depth defining member) that pre-position tablets correctly before splitting occurs. This preliminary guidance prevents the need for holding mechanisms during the actual split, eliminating reactive forces while maintaining precision.
2Manufacturing precision
If components are aligned manually for different tablet shapes, then splitting accuracy can be maintained, but workload and time consumption increase significantly
Solution Approach 1:
The guide passage is designed with universal geometric features (flat portion, facing section, groove-depth defining member) that work with multiple tablet shapes and sizes. The thickness adjusting mechanism allows the same guide structure to adapt to different tablet thicknesses automatically, eliminating the need for manual realignment and significantly reducing workload while maintaining precision.
Solution Approach 2:
The patent introduces dynamic adjustability through the thickness adjusting mechanism, which can automatically modify the position of the groove-depth defining member based on tablet thickness. This dynamic adaptation allows the system to handle varying tablet dimensions without manual intervention, improving both productivity and precision.
3Ease of operation
If a fixed groove depth is used in the guide passage, then tablet positioning is simplified, but the apparatus cannot adapt to tablets of different thicknesses
Solution Approach 1:
The patent transforms the fixed groove depth into a dynamic, adjustable parameter. The thickness adjusting mechanism enables the groove-depth defining member to be positioned at different depths based on tablet thickness, allowing the system to adapt to various tablet specifications while maintaining simple positioning operation.
Solution Approach 2:
The patent changes the physical parameter of groove depth from a fixed value to an adjustable variable. By incorporating the thickness adjusting mechanism, the system can modify the groove depth parameter to match different tablet thicknesses, achieving both ease of operation and adaptability.
Data Source
AI summary
A tablet splitting apparatus includes a guide, a catcher, and a splitting mechanism. The splitting mechanism comprises a pair of blades and a pair of blade shifters. The guide, the catcher, and the splitting mechanism are accommodated in a housing. The housing includes an opening and a support. The support and the guide each include a sliding portion. The guide disposed at the supporting position is slid along the sliding portion of the support so as to be detachable from the supporting position through the opening. The blades and the blade shifters each comprise a sliding portion. The blades and the blade shifters are in a slidable contact with each other at the sliding portions. The blades attached to the respective predetermined positions of the blade shifters are slid along the sliding portions of the blade shifters so as to be detachable from the blade shifters through the opening.