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
1989-05-15
1990-09-18
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Plural female mold cavities cooperating with single press...
Roll press member coacting with endless surface having...
264335, 425107, 425314, 425437, 425520, B29C 4350
Patent
active
049574256
ABSTRACT:
An improved machine for producing a configurated and specified weight product in die cavities of a rotary die roll, each of the die cavities being defined by a configurated sidewall and a porous bottom wall. During each revolution of the die roll, a batch of the product is forced into each cavity if the cavities pass a feed hopper. Upon continued rotation of the die roll, the bottom walls of the cavities are moved outwardly to force the configurated products from the die cavities, while simutaneously, air at a pressure greater than atmospheric pressure is directed through the porous bottom walls so that the configurated product is forced off of the bottom wall and onto a conveyor located beneath the die roll. The machine includes improved means for directing air to the underside of the die roll, improved means for supporting the porous bottom walls from movable flight bars located internally of the die roll, improved means for lubricating the flight bars and rollers from which the flight bars are mounted, and improved means for feeding product from a hopper to the cavities of the die roll.
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