Continuous producton of expanded cellular material of circular cross section
AssigneePolicastilla, S/A
InventorSeveriano Palomares
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Abstract
The present invention relates to the continuous production of blocks of circular cross section of expanded cellular material. The material is deposited on a flexible liner which is movable sychronously with a flexible mold element through a stationary longitudinal shaping mold which is of circular cross sectional shape at its discharge end. In accordance with the present invention, cellular blocks of completely circular cross section are produced. The invention also provides for the heating of the flexible mold element to reduce the temperature difference between the elements contacting the expanded cellular material so that more uniform density is obtained.
Claims5
A method for the production of expanded foam blocks having circular cross-section comprising depositing the foam in a deposit zone on a flexible coating band which overlays a movable flexible feed belt, synchronously moving the flexible coating band and flexible feed belt in contiguity with the inner wall of a stationary longitudinal shaping mold which varies in cross-sectional shape over at least a portion thereof from the deposit zone to a discharge zone, the shaping mold cross-sectional shape being circular in the discharge zone.
Dependencies are inferred from the claim text.