Belt-type particleboard press

Details Belt-type particleboard press Belt-type particleboard press

1982-08-24

1984-08-28

Hall, James R.

Plastic article or earthenware shaping or treating: apparatus

Press forming means, press reshaping means, or vulcanizing...

Cooperating endless belts

A23G 120

Patent

active

044681887

ABSTRACT:
A central station of a belt-type particleboard press, serving to compact a prepressed mat of wood particles and binder prior to its conversion into particleboard in a final station, comprises a multiplicity of mutually identical frame elements with aligned windows traversed by a pair of platens bracketing upper and lower stretches of two conveyor belts between them, these belt stretches entraining the mat along a horizontal path. The frame elements form supports spaced along the path, each support consisting of one or more such elements and carrying a group of hydraulic rams acting upon the upper platen to place the mat under a pressure which peaks in an upstream zone, decreases in an intermediate zone and levels off in a downstream zone of its path. The supports, whose spacing progressively increases from the upstream end of the path to its downstream end, each consist of a single frame element in the downstream zone and of several frame elements in the intermediate and upstream zones; the plural-element supports have more rams than the single-element supports.

REFERENCES:
patent: 4308227 (1981-12-01), Ufermann
patent: 4315722 (1982-02-01), Ufermann
patent: 4341135 (1982-07-01), Ufermann

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