Vacuum Roller Transfer of Diagnostic Labels
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Solution Overview
Problem
Existing methods for producing analysis tapes for fluid samples are limited by low throughput, high material rejects, and high production costs, failing to achieve both precision and cost-effectiveness simultaneously.
Innovation Solution
A method and device utilizing a vacuum roller to precisely transfer diagnostic auxiliary labels onto a carrier tape, with sensors detecting the labels' position and orientation, allowing for open-loop or closed-loop control to ensure accurate placement, even at high tape speeds, and incorporating a control loop to synchronize drives and maintain precise positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional methods are used to produce analysis tapes, then production costs are high and material rejects are frequent, but throughput remains low
Solution Approach 1:
The patent replaces conventional mechanical transfer mechanisms with a vacuum-based transfer system. The vacuum roller uses negative pressure to hold and transfer diagnostic auxiliary labels onto the carrier tape, eliminating mechanical contact and reducing material damage. This substitution enables higher throughput while minimizing material rejects through gentler, more precise handling.
Solution Approach 2:
The patent implements sensor-based feedback control to monitor the position and orientation of diagnostic auxiliary labels during the transfer process. Sensors detect deviations from the desired trajectory and provide real-time feedback to the control system, allowing dynamic adjustment of the vacuum roller and carrier tape speeds. This feedback mechanism ensures precise label placement at high speeds while reducing material rejects.
2Productivity
If tape speed is increased to improve throughput, then productivity increases, but placement precision deteriorates
Solution Approach 1:
The patent replaces mechanical positioning systems with a vacuum-based transfer system that uses pressure differentials to control label placement. The vacuum roller maintains a controlled negative pressure field that guides labels onto the carrier tape without mechanical contact, enabling high-speed operation while preserving placement precision through fluid dynamics control rather than mechanical constraint.
Solution Approach 2:
The patent employs sensors to continuously monitor the position and orientation of diagnostic auxiliary labels during high-speed transfer. The feedback control system adjusts the vacuum roller speed and carrier tape speed in real-time to maintain precise label placement even at tape speeds up to 10 m/min. This active feedback compensation ensures manufacturing precision is maintained despite increased productivity.
3Manufacturing precision
If conventional transfer methods are used, then device complexity is low, but manufacturing precision and throughput cannot be simultaneously achieved
Solution Approach 1:
The patent replaces simple mechanical transfer mechanisms with a vacuum-based system that uses pressure differentials to achieve precise label placement. While this introduces some complexity through the vacuum generation system, it eliminates the need for complex mechanical positioning and alignment mechanisms, achieving high manufacturing precision through a different technological approach.
Solution Approach 2:
The vacuum roller serves multiple functions simultaneously: it acts as a transfer medium for diagnostic auxiliary labels, a positioning device through vacuum pressure control, and a speed control mechanism synchronized with the carrier tape. This multi-functionality reduces the need for separate specialized components, managing device complexity while achieving high manufacturing precision and throughput.
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 method enables high-precision placement of diagnostic aids at significantly higher tape speeds (up to 10 m/min) with reduced material waste and increased throughput, maintaining high-quality tape production while reducing costs.
Implementation Method 1
at least one vacuum roller for the transfer of the diagnostic auxiliary labels
Data Source
AI summary
A method for producing an analysis tape for fluid samples, in particular body fluids, is proposed. In the method, diagnostic auxiliary labels are transferred to a carrier tape, wherein at least one vacuum roller is used for the transfer of the diagnostic auxiliary labels. The diagnostic auxiliary labels are detected on the vacuum roller. At least one tape position of the carrier tape is furthermore detected. The transfer of the auxiliary labels to the carrier tape is effected in accordance with the detected auxiliary labels and the tape position.