Plastic article or earthenware shaping or treating: apparatus – Plural female mold cavities cooperating with single press... – Roll press member coacting with endless surface having...
Patent
1985-02-14
1986-05-06
Flint, Jr., J. Howard
Plastic article or earthenware shaping or treating: apparatus
Plural female mold cavities cooperating with single press...
Roll press member coacting with endless surface having...
425DIG230, B29C 302, A21D 600
Patent
active
045868883
ABSTRACT:
Rotary molding apparatus particularly for use with "soft"-type baking doughs and like media includes, in combination with a rotary die roll which carries molding cavities in its outer surface, a feed roll for forcibly filling the molding cavities with media from a supply hopper, and media-trapping retention means disposed adjacent the die roll between the feed roll and a take-off conveyor which receives the molded media from the cavities and conveys the shaped media away for further processing. The media-trapping retention means keeps the shaped "soft" media within the molded cavities as the die roll rotates toward the take-off conveyor, and the take-off conveyor preferably is disposed in complementary wrapping engagement with and along at least the lower extremities of the die roll. In its most preferred form the media-trapping retention means includes a shoe with a curved face which is resiliently biased against and in sliding contact with the outer surface of the die roll. The supply hopper and feed roll preferably provide a narrow pressure throat at the location where the molding cavities are filled, as by use of a pressure wall particularly located for this purpose, to ensure complete filling of the molding cavities and also to provide a re-entry channel which facilitates movement of media back into the supply hopper with the rotating surface of the die roll.
REFERENCES:
patent: 859999 (1907-07-01), Werner
patent: 1964969 (1934-07-01), Werner
patent: 1971087 (1934-08-01), Werner
patent: 3302592 (1967-02-01), Werner
patent: 3318264 (1967-05-01), Weidenmiller
patent: 3469540 (1969-09-01), Werner
patent: 4362754 (1982-12-01), Wenger et al.
Flint, Jr. J. Howard
Werner Lehara, Inc.
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