System for producing and conditioning blocks of flexible polyure

Details System for producing and conditioning blocks of flexible polyure System for producing and conditioning blocks of flexible polyure

1998-07-06

2000-02-08

Davis, Robert

Plastic article or earthenware shaping or treating: apparatus

With mechanical means forming or expanding pores

264101, 425 73, 425817R, B28B 150

Patent

active

060222050

ABSTRACT:
A system for producing blocks of open-cell, flexible polyurethane foam material and for conditioning each freshly-manufactured block to impart thereto optimal flexible foam properties. The system includes means to pour the flowable constituents of the foam material to be manufactured into a production station at the inlet of a conveyor, the constituents interacting to create on the conveyor a block of open-cell flexible foam material which is then wrapped in a plastic film casing that exposes the leading and trailing end of the block so that the encased block is open ended. The conveyor transports the wrapped block toward the rear end of a gate in a conditioning station having a port therein whose front end is coupled by an air duct to a suction fan. When the exposed leading end of the wrapped block abuts the rear end of the gate, the suction fan draws ambient air into the block through its open trailing end and acts to evacuate from the wrapped block fumes, particulate matter entrained therein and other contaminants generated by an initial exothermic reaction in the block.

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