Abstract: A dosing hopper for producing wood material panels has a feed device (2) that distributes the supplied material flow of glued wood particles continuously over the width of the hopper (1). The dosing hopper supplies elongated flat wood strands for producing oriented structural chip boards or panels (OSB, LSL). The feed device (2) includes a weighing device (23), with which the wood strands are distributable over the entire hopper width in a weight-dosed and oriented manner.

Abstract: The invention relates to a dosing hopper for producing wood material panels with a feed device (2), which distributes the supplied material flow of glued wood particles continuously over the width of the hopper (1). The dosing hopper is characterized in that it is provided for elongated flat wood strands (strands) for producing oriented structural chip boards or panels (OSB, LSL). In this regard, the feed device (2) is embodied so that it includes a weighing device (23), with the aid of which the wood strands (strands) are distributable over the entire hopper width in a weight-dosed and oriented manner.

Abstract: The invention relates to a dosing hopper for producing panels with oriented chips (OSB, LSL), which is arranged above a spreading head and includes an apparatus for the pre-orientation (7) of the elongated flat wood strands (strands). This dosing hopper is characterized in that an oscillating conveyor or a parallel conveyor is provided below the pre-orientation apparatus (7), which conveyor distributes the pre-oriented wood strands in their pre-oriented position continuously over the entire hopper width.

Abstract: The invention relates to a vertical dosing hopper for producing wood material panels or board sheets, which is arranged above a spreading head for glued wood particles, and in which the particle supply reserve is provided essentially in a vertical direction. In this context, the wood particles are conveyed essentially from the top toward the bottom to a discharge device (18, 48). The invention is characterized in that the hopper is provided for elongated flat wood particles, wood strands (strands) for producing panels or board sheets with oriented wood strands (OSB, LSL). Thereby, the supply reserve space comprises at least one vertical conveying shaft (13), in which the elongated flat wood strands are continuously conveyed to a discharge device (18, 48). In this context, the conveying shaft consists essentially of at least two parallel and vertical oppositely-facing conveyor belts (14, 15, 46, 47), which extend over the entire hopper width.

Abstract: A spreading station for spreading chip or fiber panels, includes a dosing belt scale (2) to provided between a dosing hopper (1) and a spreading head (3). The dosing belt scale (2) is connected to a regulating unit (4, 22) with which the conveying rate (kg/s) of the chip or fiber material on the dosing belt scale (2) is gravimetrically regulatable based on a prescribed fleece weight or a prescribed nominal conveying rate that is to be achieved.

Abstract: The production of a mat of wood chips and/or fibers, hereafter called wood particles, by a spreading station and a weighing device, is controlled in a closed loop circuit for uniformity, directly during the spreading of the wood particles. Several spreading devices form a spreading station. Electrical signals emanating from a tared weighing device which is arranged downstream of a first spreading device as viewed in the direction of travel of a conveyor belt, are used to control the output of the first spreading device. If desired, the output of one or more spreading devices located downstream of a weighing device may also be controlled in a closed loop circuit, whereby the weight of the partially formed mat moving over the weighing device produces the electrical control signal which is compared to a predetermined reference signal for controlling the production of the finished mat having one or several layers.