Method and apparatus of forming a deboss in a closed end of a metallic cup

Abstract

An apparatus and method for forming a deboss in a closed end-wall of a metallic cup is provided. The deboss apparatus generally includes a rotatable turret with tooling assemblies. The tooling assemblies are configured to receive a metallic cup formed by upstream equipment. The metallic cup formed by the upstream equipment has a closed end-wall that is generally planar. As the turret rotates, the tooling assemblies are configured to form a deboss in the closed end-wall of the metallic cup. In one embodiment, the deboss projects inwardly into an interior of the metallic cup. The metallic cup with a deboss is subsequently stripped from the tooling assembly for further processing.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Patent Application Ser. No. 62 / 436,177 filed Dec. 19, 2016, which is incorporated herein in its entirety by reference.FIELD OF THE INVENTION[0002]The present invention relates generally to the manufacturing of metallic containers. More specifically, the present invention relates to a method and apparatus for forming a deboss in a closed end-wall of a metallic cup to enhance performance during subsequent operations in which the metallic cup is formed into a metallic container.BACKGROUND[0003]Metallic containers offer distributors and consumers many benefits. The body of a metallic container provides optimal protection properties for products. For example, the metallic body prevents CO2 migration and transmission of UV radiation which may damage the contents, such as beverages or other consumable products, negatively influencing the flavor, appearance, or color of...

AI Technical Summary

Benefits of technology

[0017]The present invention provides systems and methods for forming a deboss in a closed end-wall of a metallic cup in a cost-effective, fast, and reliable manner. One aspect of the present invention is a method of forming a deboss in a metallic cup at low cost and high speed. Another aspect is a system and method of forming a deboss in a metallic cup that requires less production space than prior art bodymakers and cupping presses. Still another aspect of the present invention is a deboss apparatus that is cost effective to purchase and operate and which operates in a fast and reliable manner. Yet another aspect of...

Problems solved by technology

For example, the metallic body prevents CO2 migration and transmission of UV radiation which may damage the contents, such as beverages or other consumable products, negatively influencing the flavor, appearance, or color of the product.

Because of the high speeds of metallic container production lines, techniques or processes that may work in other industries or with containers formed of other materials do not necessarily work at the high speeds required for metallic container production lines.

Because typical metallic container manufacturing facilities often produce hundreds of millions or billions of metallic containers per year, the wear of components of bodymakers is inherent based of the tremendous speed and output of product.

One problem experienced during the formation of metallic containers is that the closed end-wall of the metallic cup is prone to thinning and wrinkling during the drawing, ironing, and dome forming operations performed by the bodymaker to transform the metallic cup into a container body.

More specifically, continual efforts to decrease the weight of metallic containers, known as light-weighting of the containers, by using thinner sheets of stock metal has resulted in undesirable wrinkling of the sheet during formation of the...

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