EP 0274001 B1 19900725 - METHOD AND DEVICE FOR MANUFACTURING A SEAL DIAPHRAGM
Title (en)
METHOD AND DEVICE FOR MANUFACTURING A SEAL DIAPHRAGM
Publication
Application
Priority
DE 3700241 A 19870107
Abstract (en)
[origin: EP0274001A1] 1. Device for manufacturing a deep-drawn seal diaphragm (7) for cans and other small containers, with a female mould (M) and a male mould (P) for forming a can cover part (8) insertable in the can body, a securing element (L) for a diaphragm collar (9) extending over the can rim, and a severing tool (T) which, from the inside, almost completely severs the diaphragm collar (9) from the can cover part (8), characterised by an annular cutting knife (1) made of spring steel as the severing tool (T), said knife having a cutting edge (2) at its external circumference and being constructed as a cup spring, and being shaped so as to extend upwards from the cutting edge (2) to its inside aperture (3), and by a press ram (5) which is adapted to be moved perpendicularly to the projection plane of the annular cutting knife (1) and, as it moves, forces the cutting edge (2) outwards.
IPC 1-7
IPC 8 full level
B21D 51/44 (2006.01)
CPC (source: EP)
B21D 51/44 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0274001 A1 19880713; EP 0274001 B1 19900725; AT E54846 T1 19900815; DE 3700241 C1 19871112; DE 3763969 D1 19900830; ES 2017679 B3 19910301
DOCDB simple family (application)
EP 87109383 A 19870630; AT 87109383 T 19870630; DE 3700241 A 19870107; DE 3763969 T 19870630; ES 87109383 T 19870630