Apparatus for laying a mat of wood strands

Details Apparatus for laying a mat of wood strands Apparatus for laying a mat of wood strands

1982-09-20

1985-01-22

Hoag, Willard E.

Plastic article or earthenware shaping or treating: apparatus

Air felting type shaping means

Means forming running length product

19296, 198382, 425224, 425449, 425456, B29J 500, B29C 2300

Patent

active

044949197

ABSTRACT:
An apparatus for laying a mat of wood strands, particularly long strands, in the process of producing a composite product such as waferboard is disclosed. In the past it has not been possible to lay long wafers in an oriented mat except by hand. The present invention provides a means for forming a pile of wood strands of substantially uniform depth, a plurality of spike rolls located at one side of the pile of wood strands to pull the wood strands out of the pile and form a uniform curtain of falling strands and a conveyor to force the pile of wood strands against the spike rolls. Beneath the spike rolls are a pair of counter-rotating spreader rolls spaced apart to receive the curtain of strands and having spikes to distribute the strands in an even mat beneath. A horizontal adjustment is provided to position the spreader rolls beneath the curtain and vary the distance between the rolls.

REFERENCES:
patent: 2509823 (1950-05-01), Hughes
patent: 2635301 (1948-09-01), Schubert et al.
patent: 3040801 (1962-06-01), Hughes
patent: 3071821 (1963-01-01), Constantine et al.
patent: 3115431 (1959-09-01), Stokes et al.
patent: 3332114 (1967-07-01), Oja
patent: 3478861 (1967-07-01), Elmendorf
patent: 3807931 (1974-04-01), Wood et al.
patent: 3997942 (1976-12-01), Buck et al.
patent: 4057876 (1977-11-01), Sawyer
patent: 4063858 (1977-12-01), Axer et al.
Maloney, Modern Particleboard and Fibreboard, Miller-Freeman Pub., (1977), pp. 490-493.

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