Abstract: The invention relates to a device and a method having a first and a second zone (Z1, Z2) for producing insulating or acoustic panels from a pressed material mat (2) which consists at least partially of lignocellulose particles coated with binders, the first zone (Z1) being designed for heating and/or compressing the pressed material mat, and the second zone (Z2) being designed for curing the pressed material mat with the aid of calibration plates (3), and there being driven circulating screen bands (5a-5f) in contact with the upper and lower pressed material mat surfaces. According to the invention, to increase the production speed, at least four circulating screen bands (5a-5f) are used, at least two of which are in operative contact with the pressed material mat (2) in the region of the first zone (Z1), and at least two of which are in operative contact with the pressed material mat (2) in the region of the second zone (Z2).

Abstract: Fiberboard or chipboard is made by first comminuting vegetable starting material in a first comminutor into a stream of loose plant particles with silicate particles. Then, in a first classifier silicate particles of a diameter of less than 50 ?m are separated from the plant particles of the stream. The plant particles remaining in the stream are then glue-coated, and the stream is pressed into fiberboard or chipboard.

Abstract: A method for detecting at least one foreign object in a mat includes: providing that the mat is spread on a conveyor device in a process for producing manufactured boards, the mat including (i) fibers or chips and (ii) at least one binding agent which are pressed under an increased temperature in a continuous press; using a first sensor device, which operates with electromagnetic waves, ultrasonic waves, magnetic fields, or radiometry and which is directed at at least one spatial measuring area of the mat in order to detect the foreign object, the first sensor device recognizing a material of the foreign object; aligning—if necessary, temporally offset—a second sensor device with the at least one spatial measuring area; and determining, by the second sensor device, at least one foreign object dimension of the foreign object.

Abstract: A device for comminuting pourable feedstock as well as a method for opening a device of this type. The device includes a housing, which encloses a comminution chamber, in which a rotor rotating around a rotation axis is arranged, the rotor being equipped with rotor tools over its circumference. A sieve holder, whose sieve extends along a circumferential section of the rotor, is used to separate the sufficiently comminuted material. The feedstock supplied to the rotor via a material infeed is removed from the device via a material discharge after being sufficiently comminuted. To improve accessibility to the interior of the device, it is proposed that, to open the housing, the sieve holder is pivotable around a first pivot axis from a closed first position into an open second position and additionally around a second pivot axis into a third position.

Abstract: The invention relates to a material board, in particular an engineered wood board (1) comprising at least one core layer (2) made of strands (3), and outer layers (4, 5) made of chips (6), characterised in that one or both of the outer layers (4, 5) is/are designed as partial-coverage outer layers such that individual strands (3) extend at least partly through the outer layer (4, 5) up to the board surface, thereby forming interruptions in the outer layer (4, 5).

Abstract: A method and a device for producing a component from a fiber composite material. The method includes introducing multiple layers of fibers impregnated with a matrix onto an inner mold, placing a membrane sealed against an outer mold onto the fibers impregnated with the matrix, such that a cavity extending along the shell surface of the outer mold forms between the outer mold and the membrane, and applying a temperature-controllable pressure fluid to the cavity at a temperature greater than the melting point of the matrix and at a pressure greater than the ambient pressure. To produce a component having at least one reinforcing layer, at least one reinforcing layer having fibers oriented in a predominantly parallel manner is placed locally onto a portion of a side of a the base layer facing the outer mold with the aid of an insertion device and a membrane with an average surface roughness of below 1.0 ?m, preferably below 0.1 ?m, subsequently exerts a set pressure in the cavity on the component.

Abstract: A method and a device for producing a component from a fiber composite material. The method includes introducing multiple layers of fibers impregnated with a matrix onto an inner mold, placing a membrane sealed against an outer mold onto the fibers impregnated with the matrix, such that a cavity extending along the shell surface of the outer mold forms between the outer mold and the membrane, and applying a temperature-controllable pressure fluid to the cavity at a temperature greater than the melting point of the matrix and at a pressure greater than the ambient pressure. To produce a component having at least one reinforcing layer, at least one reinforcing layer having fibers oriented in a predominantly parallel manner is placed locally onto a portion of a side of a the base layer facing the outer mold with the aid of an insertion device and a membrane with an average surface roughness of below 1.0 ?m, preferably below 0.1 ?m, subsequently exerts a set pressure in the cavity on the component.

Abstract: A method is specified for producing a structural component, in particular for an aircraft, ground vehicle, or watercraft, or for a rotor blade of a wind turbine, in which method an arrangement of fibers and plastic material is laid in a mold and subjected to an increased pressure and an increased temperature, wherein a mold is used which comprises at least one recess in which a reinforcing element is arranged. The object is to be able to cost-effectively produce a structural component of this type. For this purpose, it is provided that the reinforcing element is laid in the recess together with a core, wherein a differential volume between the recess and core, at least in a predetermined region, is chosen such that it is smaller than a segment of the reinforcing element arranged in said region by a predetermined amount.

Abstract: A device for comminuting pourable feedstock as well as a method for opening a device of this type. The device includes a housing, which encloses a comminution chamber, in which a rotor rotating around a rotation axis is arranged, the rotor being equipped with rotor tools over its circumference. A sieve holder, whose sieve extends along a circumferential section of the rotor, is used to separate the sufficiently comminuted material. The feedstock supplied to the rotor via a material infeed is removed from the device via a material discharge after being sufficiently comminuted. To improve accessibility to the interior of the device, it is proposed that, to open the housing, the sieve holder is pivotable around a first pivot axis from a closed first position into an open second position and additionally around a second pivot axis into a third position.

Abstract: The invention relates to a device and a method for separating and/or recovering silicate particles from plant material. This device and the method are characterized by an air classifier (3, 14), which has at least one material inlet (4), an air inlet (6), arranged under the material inlet (4), an air outlet (7) and at least one particle receptacle (8), arranged under the air outlet, wherein the plant particles recovered from plant material by crushing can be subjected to an air stream in the air classifier (3, 14) in such a way that silicate particles contained in the plant material are removed by the air stream via the air outlet (7) and, as a result of gravitational force, the plant particles are received by the particle receptacle (8) arranged under the air outlet (7) and taken away.

Abstract: A conveyor for transporting a board along a path in a transport direction has an upstream section, a downstream section aligned with the upstream section and defining therewith a horizontal support plane, and a center section between the upstream and downstream sections. The center section is movable from a pass-through position aligned and level with the upstream and downstream sections to an offset position spaced therefrom horizontally or vertically. A platform underneath the center section is moveable vertically, and a lift moves the platform vertically between upper and lower positions. Hooks or grab can, when the center section is in the offset position and the platform is in the lower position, either pull a board off the platform and onto the downstream section or guide and deposit a board from the upstream section onto the platform.

Abstract: A device for comminuting feed material with first comminuting tools and second comminuting tools, which are arranged inside a housing coaxially to an axis and which are axially spaced apart to form a comminuting zone, and of which at least the first comminuting tools perform a rotational movement about the axis. In a contact area between a first tool carrier and the first comminuting tools and/or in a contact area between a second tool carrier and the second comminuting tools a plurality of channels for the passage of a process gas are provided. The channels each have a radially inner inlet opening through which the process gas enters the channels and a radially outer outlet opening through which the process gas emerges from the channels. Among other things, this achieves improved cooling of the comminuting zone.

Abstract: The invention relates to a press for producing a component from a fibre-composite material, which is designed as a membrane press, comprising a press frame (15), a press lower part (3) on which a mould (4) is arranged, a press upper part (5) having a pressure chamber (6) that can be sealed against the press lower part (3), one or more press cylinders (9) which are supported on the press frame and act on the press upper part (5) and/or the press lower part (3), a membrane (11) that can be tensioned over the mould (4), a vacuum pump (12) with which a vacuum can be generated on a side of the membrane (11), for example on the underside, characterised in that the press frame is designed as a C-frame with an upper horizontal C-arm, a lower horizontal C-frame and a vertical C-base.

Abstract: A press for making a continuous sheet from composite material has upper and lower press belts having respective lower and upper reaches that vertically spacedly confront one another across a press gap having an upstream inlet end and a downstream outlet end, and that have transversely spaced outer edges extending in the direction. The belts are advanced direction and thereby draw a mat of the composite material in the inlet end, compress it into the sheet, and expelling the sheet from the downstream end. Two transversely spaced elastic seal strips extend in the direction in the gap and are each engaged between a respective one of the outer edges of the upper belt and the respective outer edge of the lower belt. Each belt has at each of the edges a surface in engagement with the respective edge strip and having an average peak-to-valley height of less than 1 ?m.

Abstract: The invention relates to a cycle press, in particular a short-cycle press, for producing and/or coating board-shaped materials, in particular engineered wood boards, comprising a press body having several press frames arranged next to one another in the longitudinal press direction, and further comprising an upper press plate and a lower press plate, wherein pressing cylinders supported on the press frames act on the upper press plate or the lower press plate. According to the invention, said cycle press is characterized in that the pressing cylinders are attached to the press frames by means of frame pins, wherein said frame pins engage in cut-outs of the press frames. Thus, the pressing cylinders can be prestressed against the press frames.

Abstract: A device for gluing fibers or similar particles, in particular for the production of wood material panels, for example fiber panels, having a blowline (3) through which the fibers to be glued are transported, wherein there are connected to the blowline a plurality of nozzles (4) which issue into the blowline and by means of which the fibers transported through the blowline can be sprayed with glue, wherein the nozzles (4) are formed as multiple-substance nozzles, for example two-substance nozzles for the purpose of steam atomization, to which nozzles in each case at least one glue feed line (5) and one steam feed line (6) are connected, characterized in that in each case one glue valve (7) and one throughflow measurement device (8) are integrated into the glue feed lines (5), and in that the glue valves (7) and the throughflow measurement devices (8) are connected to at least one control and/or regulating device, such that the throughflow rate for each glue feed line (5) can be separately controlled or regula

Abstract: A large cylindrically tubular molded part is made by assembling a plurality of inner segments into a tubularly cylindrical mold inner part having an outer surface centered on an axis and then juxtaposing reinforcing fibers with the outer surface. Then a plurality of outer segments are assembled into a tubularly cylindrical mold outer part coaxial with the mold inner part and having an inner surface radially confronting the outer surface of the inner part and forming therewith a mold cavity containing the reinforcing fibers. Multiple turns of prestressing cables are then wound under tension around the outer mold part to press the outer segments angularly together and the cavity is with a hard-curing plastic that is cured in the cavity to form the molded part reinforced with the reinforcing fibers. The inner segments are radially inwardly and the outer segments radially outwardly retracted then to demold the molded part.

Abstract: The invention relates to an installation for applying glue to fibers for the production of fiberboard, especially MDF board or similar wood material board. Said installation comprises a fiber feed unit having at least one fiber feed conduit which opens into a fiber exit tube via a fiber deflection element and receives the air that is used to transport the fibers, a chute which is located downstream of the fiber exit tube, a glue application device which has spray nozzles for spraying the fibers that emerge from the fiber exit tube and enter the chute with drops of glue, and a collection device, located downstream of the chute and having an air-permeable transport belt for collecting and optionally carrying off the fibers and a suction device located below the transport belt for suctioning air from the chute through the transport belt, the suction device having one or more suction boxes to which one or more suction pipes are connected.

Abstract: The invention relates to a dispersion installation for dispersing dispersible material on a dispersing material conveyor belt so as to form groups of material for producing wood-material boards. Said system comprises at least one dispersion material bunker for the dispersible material dispersed on the dispersing material conveyor belt, having at least one top side filling opening. A chute is connected to the filling opening via which the dispersible material can enter into the dispersion material bunker. The invention is characterized in that at least one brake cylinder device is arranged inside the chute, said brake cylinder comprising at least two rotationally driven brake cylinders.

Abstract: A rubber sheet is made from rubber-containing granules by first coating the rubber granules with a binder, then forming the coated rubber granules into a mat having a core layer with a low moisture level of less than 5% and a pair of outer surface layers, and then, without substantially increasing the low moisture level in the core layer, setting in at least one of the outer layers a high moisture level of 10% to 50% by weight and thereby imparting to the mat an inhomogeneous moisture profile. The mat with the inhomogeneous moisture level is then hot-pressed with pressure and heat so as to vaporize moisture in the one outer layer and drive steam into the core layer, and the hot-pressed mat is cured.