End Closure Orientation for Precise Decoration Placement
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Solution Overview
Problem
Current methods for manufacturing and decorating container end closures are inefficient, as they lack a reliable and cost-effective way to orient and apply decorations to specific areas, often resulting in damage or obstruction by the pull tab and tear panel.
Innovation Solution
A method and apparatus that includes an orientation head to rotate and secure the end closure in a predetermined position, followed by a coater and printer to apply decorations to specific areas, ensuring precise placement and avoiding damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If decoration is applied to metal stock material before forming shells, then decoration can be applied early in the process, but the decoration is likely to be damaged or cut off during the conversion process
Solution Approach 1:
The patent applies preliminary action by orienting the shell in a predetermined orientation before the decoration is applied. The orientation device positions the shell with its pull tab and tear panel in specific locations, then the decoration is applied to predetermined areas that are guaranteed not to be damaged during subsequent processes. This resolves the contradiction by performing the orientation action before decoration application, ensuring decoration integrity while maintaining early decoration benefits.
2Device complexity
If shells are not oriented when entering the conversion press, then the conversion process can proceed without additional equipment, but the decoration may be intersected by scores or positioned beneath the pull tab
Solution Approach 1:
The orientation device performs preliminary orientation of shells before they enter the conversion press. By positioning shells in a predetermined orientation with pull tabs and tear panels in specific locations, the system ensures that subsequent decoration application will not result in damage or improper placement. This adds minimal equipment complexity while dramatically improving manufacturing precision for decoration placement.
3Ease of manufacture
If end closures are decorated after conversion, then the decoration can be applied to the final product, but the process is slow and decorations cannot be applied in predetermined areas
Solution Approach 1:
The patent applies preliminary action by orienting shells before decoration, enabling fast decoration processes to be used while still achieving predetermined area placement. The orientation device ensures that when decoration is applied to converted end closures, it goes to the correct predetermined areas that will not be damaged. This maintains the speed advantages of post-conversion decoration while eliminating the precision problems.
4Force
If decoration is applied to coils and cut sheets, then decoration can be applied before shell formation, but indexing and printing is complicated and cost prohibitive
Solution Approach 1:
The patent applies preliminary action at the shell orientation stage rather than at the coil or cut sheet stage. This allows decoration to be applied after shell formation (avoiding the complexity of indexing and printing on flat materials) while still benefiting from predetermined area placement. The orientation device provides the necessary preliminary positioning without the complications of decorating flat stock materials.
Data Source
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AI summary
An apparatus and method of orienting and decorating container end closures is provided. More specifically, the present invention relates to apparatus and methods used to position container end closures in a predetermined orientation and then decorate a predetermined portion of the end closures.