Apparatus for releasing a press-formed article from a die set

Details Apparatus for releasing a press-formed article from a die set Apparatus for releasing a press-formed article from a die set

1986-09-30

1988-07-05

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Cutter guided by or cooperating with peripheral edge of...

249 66C, 425351, 425422, 425437, 425444, 425520, B29C 5144

Patent

active

047551283

ABSTRACT:
An improved apparatus and method as provided for releasing sheet material press-formed in a die assembly between mating male and female dies from the die assembly. A first air supply system is provided for injecting air between the male die and sheet material in the die assembly to break any vacuum existing between the male die and the sheet material. Subsequently, a second air supply system is provided for injecting air between the female die and sheet material in the die assembly during ejection of a press-formed article from the female die so as to break any vacuum existing therebetween. A system is provided for discharging excess trim waste severed from the press-formed article and routing the trim waste toward a scrap collector while permitting the article to be routed in another direction toward an article collector.

REFERENCES:
patent: 3153262 (1964-10-01), Steketee
patent: 4149841 (1979-04-01), Patterson
patent: 4246223 (1981-01-01), Patterson
patent: 4289726 (1981-09-01), Potoczky
patent: 4304747 (1981-12-01), Lake
patent: 4364895 (1982-12-01), Underwood
patent: 4440702 (1984-04-01), Susnjara
patent: 4514353 (1985-04-01), Alexander et al.
patent: 4521367 (1985-06-01), Underwood
patent: 4647274 (1987-03-01), Oda

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