Invention Grant
- Patent Title: Method and apparatus for forming a can shell
- Patent Title (中): 用于形成罐壳的方法和装置
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Application No.: US12924077Application Date: 2010-09-20
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Publication No.: US08573020B2Publication Date: 2013-11-05
- Inventor: R. Peter Stodd
- Applicant: R. Peter Stodd
- Applicant Address: US OH Dayton
- Assignee: Container Development, Ltd.
- Current Assignee: Container Development, Ltd.
- Current Assignee Address: US OH Dayton
- Agency: Jacox, Meckstroth & Jenkins
- Main IPC: B21D28/00
- IPC: B21D28/00 ; B21D22/00

Abstract:
Can shells are produced with tooling installed on a mechanical press, and the tooling includes an upper retainer supporting a blank and draw die enclosing an outer pressure sleeve and an inner pressure sleeve surrounding a die center punch, all having pistons. An air chamber is connected by air spring passages to the inner pressure sleeve piston, and the outer pressure sleeve receives the same air as the air chamber or lower pressure air. The die center punch has an insert which initiates the drawing of a cup, and the inner pressure sleeve and die center punch have contoured surfaces which mate with opposing surfaces on a die core ring to form and clamp the chuckwall of the shell during downstroke of the press. A panel punch has peripheral surfaces which form the panel wall and countersink of the shell during upstroke of the press.
Public/Granted literature
- US20120067102A1 Method and apparatus for forming a can shell Public/Granted day:2012-03-22
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