Method and tool for the cylindrical deformation of an Al sleeve to the core dimension of the internal plastic closure, as preparation for a diffusion-proof press connection within the two components

US9132467B2 · kind B2 · utility

Assignee

• Boehringer Ingelheim International GmbH · DE

Inventors

• Joerg Spreitzer · Hahnheim, DE
• Christoph Hahn · Attendorn, DE
• Michael Huebner · Marietta, US
• Gerald Mathe · Munich, DE
• Peter Funke · Hanau, DE
• Ruediger Pusch · Eichwalde, DE

Key dates

• Filing date: Oct 8, 2009
• Grant date: Sep 15, 2015
• Expiry date: Oct 19, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49908
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

In a method of producing a connection between the neck area of a light metal cartridge, particularly an aluminium cartridge, and a plastic container inserted therein, by a drawing process that forms a connection area and applies areas of the wall of the light metal cartridge against the plastic container using a rotating main body (15) of a drawing tool (2), said main body supporting at least one profiled drawing roller (3) which can rotate about a rotation axis (5) in order to delimit a tool working opening (1), wherein the drawing roller (3) lies against the outer surface of the light metal cartridge, the rotation axis (5) of the drawing roller (3) is arranged at a tool-internal end area of a lever (9) arranged transversely relative to the longitudinal axis (16) of the drawing tool (2), said lever being supported at its opposite tool-external end area on the drawing tool (2) so as to be pivotable about a pivot axis (11) in a force-controlled manner and so as to apply the drawing roller (3) against the outer surface of the light metal cartridge.