Sample Cup Serrated Collar for Thin-Film Detachment
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Solution Overview
Problem
Conventional sample cups with thin-film materials require time-consuming trimming of excess film, which can lead to misalignment in spectroscopy instrumentation due to static charges and residual film, affecting analytical accuracy.
Innovation Solution
A sample cup with a serrated edge collar mechanism that perforates and detaches thin-film portions, ensuring precise alignment by creating a uniform line of perforations for easy removal, preventing residual film attachment and static issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional scissors trimming method is used, then excess thin-film can be removed, but the process is time-consuming and labor-intensive
Solution Approach 1:
The sample cup assembly performs self-trimming through its own structural features. The collar with cutting edges automatically trims the thin-film material when assembled, eliminating the need for external trimming tools and manual operations. This self-service mechanism dramatically increases productivity while minimizing time loss.
2Manufacturing precision
If thin-film is trimmed close to cell body for precise alignment, then alignment accuracy improves, but residual film portions may remain causing misalignment
Solution Approach 1:
The collar is designed with segmented cutting edges that create a complete circular cut through the thin-film material. This segmentation ensures that the film is cleanly separated from the cell body without leaving residual portions that could cause misalignment, thereby improving both precision and reliability.
Solution Approach 2:
The collar acts as an intermediary component between the thin-film material and the cell body. It provides a controlled interface that ensures proper positioning and trimming of the film, preventing direct contact between the film and cell body that could lead to misalignment issues.
3Area of stationary object
If thin-film material extends beyond collar, then coverage is sufficient, but excess film flares away requiring trimming
Solution Approach 1:
The collar is designed with integrated cutting edges that perform preliminary trimming of the thin-film material during the assembly process itself. This preliminary action ensures that excess film is removed before the sample cup needs to be handled, eliminating the need for subsequent trimming operations and improving ease of operation.
4Ease of manufacture
If scissors are used for trimming, then excess film can be removed, but static charge build-up causes clumping and handling difficulties
Solution Approach 1:
The invention replaces the mechanical scissors trimming system with an integrated collar-based trimming mechanism. This substitution eliminates the need for external trimming tools that generate static charge, thereby reducing static electrical charge build-up and the associated handling difficulties while maintaining ease of manufacture.
Data Source
AI summary
A cup assembly for holding a sample to be analyzed spectrochemically, including a sample cell having a generally cylindrical wall longitudinally extending between a first end and a second end thereof and a sleeve having a generally cylindrical wall longitudinally extending between a first end and a second end thereof, and a plurality of projections longitudinally extending from the first end of the sleeve wall. When a substantially planar film is interposed between the sample cell and the sleeve, and the first end of the sample cell is inserted into the first end of the sleeve, the film is retained between the sample cell and the annular sleeve; and the longitudinal projections are positioned to perforate the film when the film is pulled against the longitudinal projections.