Drug Packaging Sheet Connection Mechanism
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Solution Overview
Problem
Existing drug packaging devices face difficulties in simplifying the process of exchanging rolled sheets due to complex feeding paths and the need for manual connection methods, which can be cumbersome and prone to errors, especially for inexperienced users, and result in increased part counts and costs.
Innovation Solution
A drug packaging device with a feeding mechanism that includes a working plate for temporarily fixing the end portions of the old and new sheets, allowing easy connection without removing the old sheet from the feeding path, using a simple construction with a freely swingable plate that exposes both surfaces for alignment and connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual connection method using double-sided adhesive tape is used, then sheet connection is achieved, but connection accuracy deteriorates and operation complexity increases
Solution Approach 1:
The patent introduces a connection stage as an intermediary component between the old sheet and new sheet. This stage provides a dedicated positioning area with alignment marks that facilitate accurate connection. The connection stage acts as a mediator that guides the operator in properly aligning and connecting the sheet ends, thereby improving connection accuracy while maintaining ease of operation.
2Manufacturing precision
If positioning mechanism with center stage is implemented, then connection accuracy is improved, but device complexity and cost increase
Solution Approach 1:
The patent extracts the essential positioning function from a complex mechanism and implements it through a simple connection stage with alignment marks. Instead of using a complicated positioning mechanism with multiple components, the invention uses a straightforward stage that provides alignment guidance through visual marks, thereby achieving connection accuracy without increasing device complexity.
Solution Approach 2:
The connection stage uses simple, inexpensive alignment marks and positioning features rather than complex, expensive mechanisms. The design prioritizes cost-effectiveness by using basic structural elements (plates, marks, and guiding surfaces) to achieve the positioning function, avoiding the need for expensive automated positioning systems.
3Ease of manufacture
If all loaded sheet is removed from feeding path, then new sheet can be set, but operation time and complexity increase
Solution Approach 1:
The patent implements preliminary action by providing a connection stage where the end of the old sheet can be connected to the new sheet before the old sheet is completely removed from the feeding path. This allows the operator to prepare the connection in advance, then simply remove the remaining old sheet and continue operation without needing to clear the entire feeding path, thereby reducing sheet exchange time and complexity.
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
Facilitates easy and accurate connection of sheets with reduced complexity and cost, minimizing waste and operational challenges, while ensuring proper alignment and connection without obstructing the feeding process.
Implementation Method 1
a feeding mechanism for feeding the sheet to a drug filling unit while applying tension to the sheet
Data Source
AI summary
A drug packaging device is provided in which both sheets are easily connectable to each other with a simple construction. A working plate having a first portion for temporarily fixing an end portion of a sheet remaining at a drug filling unit side, and a second portion for temporarily fixing an end portion of a new sheet are provided. The end portions of the respective packaging sheets which are temporarily fixed at the first portion and the second portion are connectable to each other.