Angled Band Ejection Mechanism for High-Speed Container Labeling
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Solution Overview
Problem
Existing systems face difficulties in efficiently applying tamper evident bands to the necks of moving containers at high speeds due to their short height and complex alignment requirements.
Innovation Solution
A machine with a mandrel assembly and band ejection arrangement featuring a roller wheel and chamfered tooling segment that tilts the tubular band at a non-zero angle for precise and efficient ejection onto the container, aided by free-spinning wheels and air injection for smooth placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional vertical ejection is used for short TE bands, then the application process is simple, but the bands cannot be effectively applied to moving containers at high speeds
Solution Approach 1:
The ejection mechanism transitions from a static vertical ejection to a dynamic angled ejection system. The tooling segment is configured at a specific angle (e.g., 45 degrees) relative to the vertical axis, enabling the band to be ejected at an angle that matches the container's movement trajectory, thereby achieving high-speed application without increasing mechanical complexity
Solution Approach 2:
The ejection direction is changed from a single vertical dimension to a two-dimensional angled trajectory. By introducing an angular component to the ejection path, the system aligns the band delivery with the container's motion, enabling effective application to moving containers while maintaining a simple ejection mechanism
2Manufacturing precision
If the band is ejected vertically downward, then the ejection mechanism is simple, but the band alignment with the container neck is imprecise
Solution Approach 1:
The tooling segment is designed with an asymmetric angular configuration rather than a symmetric vertical arrangement. The specific angle (e.g., 45 degrees) creates an asymmetric ejection path that naturally aligns the band with the container neck position, achieving precise placement without requiring complex alignment mechanisms
Solution Approach 2:
The ejection surface of the tooling segment is configured with specific local geometric properties (angled configuration) that are optimized for the particular application point. This localized angular design ensures that the band is ejected at the precise angle needed for alignment with the container neck, improving manufacturing precision without overall system complexity
3Productivity
If the band is ejected at high speed, then productivity is improved, but band hang-ups and placement accuracy deteriorate
Solution Approach 1:
The angled ejection configuration creates a dynamic ejection path that maintains optimal band-container interaction during high-speed operation. The angle allows the band to naturally follow the container's motion, preventing hang-ups and ensuring reliable placement even at elevated ejection speeds
Data Source
AI summary
A machine for applying a tubular band to a container moving in a feed direction includes a mandrel assembly about which tubular film is passed. The mandrel assembly is configured to eject tubular bands in an angular direction or orientation that is partly against the feed direction.