Stackable Closure Cap Bead Design for Machine Application
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Solution Overview
Problem
Existing closure caps for high-quality products, such as medicinal and cosmetic items, face challenges in being heat-sensitive, allowing refilling and failing to prevent counterfeit products, and are difficult to apply uniformly to cylindrical vessels due to tolerance issues.
Innovation Solution
A closure cap design featuring a bead or shoulder for stacking and defined spacing, with an anti-twist mechanism and optional inward beads or knobs, allowing machine application and ensuring secure, defined positioning and spacing on cylindrical vessels without heat fixation, and destruction upon opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If closure caps are made stackable with defined spacing for machine application, then productivity and ease of operation are improved, but device complexity increases due to additional stacking means
Solution Approach 1:
The closure caps are designed to be stackable one inside another with defined spacing, allowing multiple caps to be nested during transport and storage. The bead structure enables one cap to be inserted into another while maintaining a specific distance between them, improving space utilization and machine application efficiency without requiring complex external fixtures.
Solution Approach 2:
The stacking means (bead) is integrated directly into the closure cap structure itself, allowing the cap to serve its own positioning and spacing function during machine application. This self-contained design eliminates the need for separate external positioning devices, reducing overall system complexity while improving productivity.
2Adaptability or versatility
If closure caps are designed for substantial cylindrical vessels with tolerance compensation, then adaptability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The closure cap features a bead structure that creates a localized reference point for positioning on the vessel. This local feature provides a precise engagement point that compensates for variations in the overall cylindrical vessel dimensions, allowing the cap to adapt to tolerance ranges while maintaining consistent positioning accuracy through the defined bead geometry.
Data Source
AI summary
The invention relates to a closure cap for a substantially cylindrical vessel, with a lateral surface, a closed end and an open end, and with a tear-open strip having a grip tab for opening the closure cap.In order to produce closure caps which are designed such that they can be applied by machine to substantially cylindrical vessels, it is proposed within the context of the invention that the lateral surface is substantially cylindrical, at least in the area of the open end, and that the closure cap is of stackable design and has means for stacking at least two closure caps with defined spacing.The invention is based on the finding that, for cost reasons, it is useful if also closure caps for substantially cylindrical vessels can be stacked, i.e. pushed onto one another, during transport as they then take up less space. In the case of machine-applied closure caps, too, it is advantageous to stack the caps, since the machine can then collect them more easily and prior positioning of the closure cap is superfluous.