Process and apparatus for the production of a spreading material mat comprising at least one scattered mat layer and a spreading material for pressing in a press in the course of manufacturing wood material panels (S)
2010
The invention relates to method and a plant for producing a grit mat (7) of at least one layer of pouring material (9) on an endlessly circulating shaping belt (8) by means of at least one scattering head (1) and a subsequent trimming of the longitudinal edges (17) of the stored spreading material mat by means of a trimming device (23) during the compression of the spreading material mat (7) in a press (22) to a plate of material, wherein the pouring material (9) into a bunker (2) and metered by a metering device (15) and with a substantially uniform Dosierflachengewicht (DFG) over a width (B1) transversely and having a length (L) in the production direction (11) of the forming belt (8) is discharged as a material stream (24) and then substantially in the direction of movement (12) into the spreading head (1) was charged and oriented with at least one spreading device (14) and / or unoriented over a width (B2) on the forming belt (8) is scattered. The invention consists in that at the longitudinal edges (17) of the spreading material mat (7) is a substantially lower basis weight (FG) than the average basis weight of the pouring material mat (7) and / or scattered as the Dosierflachengewicht (DFG) is. The invention further relates to a spreading material mat for pressing in a press.
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