Die ejector assembly for multi-stage forming machines

Details Die ejector assembly for multi-stage forming machines Die ejector assembly for multi-stage forming machines

1984-06-18

1985-11-12

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Press forming apparatus having opposed press members

Male shaping member and female mold

72427, 164347, 425556, B29C 700, B29F 114

Patent

active

045525250

ABSTRACT:
The die ejector assembly is for multi-stage forming machines having each forming station provided with a die ejector that is separately adjustable as to its extent of lift. The ejector assembly comprises an ejector pin, an ejector lever member and a drive means for the ejector lever member. An intermediate lever member is disposed between the ejector lever member and the drive means therefor. The intermediate lever member is common to several ejector lever members and has adjustable French curves associated with each forming stage. French curves have circular/tangential cam sections. The intermediate lever member includes means for adjusting the position of the cam sections.

REFERENCES:
patent: Re27562 (1973-01-01), Smith
patent: 249987 (1881-11-01), Potts
patent: 1994824 (1935-03-01), Kux
patent: 2314123 (1943-03-01), Butterfield
patent: 3171144 (1965-03-01), Maistros
patent: 3299453 (1967-01-01), De Meerendonk
patent: 3561054 (1971-02-01), Smith
patent: 3604242 (1971-09-01), Allebach
patent: 3645658 (1972-02-01), Detroyer
patent: 3722253 (1973-03-01), Tsuda et al.
patent: 3938585 (1976-02-01), Rader

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