DIEFFENBACHER GMBH MASCHINEN-UND ANLAGENBAU Patent applications |
Patent application number | Title | Published |
20160069021 | BEND FOR INTRODUCING A STEAM-AND-FIBERS STREAM INTO A DRYER OR A PULP CHEST OF A FIBERS-PROCESSING PLANT, BLOW LINE WITH A BEND, AND FIBERS-PROCESSING PLANT WITH A BLOW LINE - A bend for introducing a steam-and-fibers stream into a dryer or a pulp chest of a fibers-processing plant, a blow line with such a bend, and a fibers-processing plant with such a blow line are provided to reduce the energy consumption in a fiberboard plant or another fibers-processing plant, such as a pulp mill or a board mill. The bend includes an inlet socket for the steam-and-fibers stream, a first outlet socket for emptying into the dryer or the pulp chest, a bent section that connects the inlet socket to the first outlet socket, and a second outlet socket arranged radially inwardly with respect to the first outlet socket. The bent section connects the inlet socket to the second outlet socket. | 03-10-2016 |
20160059498 | METHOD, DEVICE AND PREFORM FOR THE MULTI-STAGE PRODUCTION OF A THREE-DIMENSIONAL PREFORM DURING THE PRODUCTION OF FIBRE-REINFORCED SHAPED PARTS - The invention relates to a device and a method for the multi-stage production of a three-dimensional preform ( | 03-03-2016 |
20150343717 | METHOD AND INSTALLATION FOR PRODUCING A FIBER-REINFORCED PLASTIC COMPONENT - A method for producing a fiber-reinforced plastic component including: cutting individual fiber mats to size; stacking multiple fiber mats to form a fiber semifinished product outside or inside a molding tool, which comprises at least two tool parts; performing a preform process to produce a fiber preform of the plastic component; and performing an RTM process to produce a main form of the plastic component. The method is distinguished by application and/or introduction, which is before, simultaneous, and/or after, of an at least partially circumferential sealant material, which is suitable for use as a sealant, to individual, multiple, and/or all fiber mats and/or the fiber semifinished product; wherein the application and/or the introduction of sealant material is performed such that at latest before the performance of the RTM process in a particularly completely circumferential edge region of the fiber preform, all fiber pores and intermediate spaces therein are closed by the sealant material. | 12-03-2015 |
20150306826 | METHOD AND PLACEMENT MACHINE FOR PLACING AND ATTACHING STRIP SECTIONS TO A PART TO BE PRODUCED - A layup machine for laying up and tacking sections of tape on a part to be produced, comprises: a first material drive/supply unit for supplying tape materials; first gripping means for drawing sections of tape from the first material drive/supply unit and for positioning the sections of tape in guide ways; a first cutter assembly for cutting to length the section of tape from the first material drive/supply unit; a motion table; and at least one tape tacking unit for placing on a tooling surface of a motion table and for tacking the sections of tape; characterized in that the layup machine furthermore comprises a second material drive/supply unit for supplying tape material; second gripping means for drawing sections of tape from the first material drive/supply unit and for positioning the sections of tape in guide ways; and a second cutter assembly for cutting to length the sections of tape from the first material drive/supply unit. | 10-29-2015 |
20150290842 | MOLD, CONTROL MEANS, METHOD AND INSTALLATION FOR PRODUCING A PREFERABLY FIBER-REINFORCED PLASTIC COMPONENT - A molding tool, a control means, and a method for producing a preferably fiber-reinforced plastic component and a facility for performing the method. A molding tool according to the invention includes at least one first seal arranged according to plan between the first and the second tool part with respect to the opening to the vacuum connection such that in a first closed position of the tool parts, the cavity can be evacuated via the opening to the vacuum connection, and in a second closed position of the tool parts, the evacuated cavity is also sealed in relation to the opening to the vacuum connection. The present invention has the advantage that using the same seal, which seals the tool parts in relation to the ambient air pressure thereof, the cavity may both be evacuated via the opening to the vacuum connection and also the evacuated cavity may be sealed in relation to the opening to the vacuum connection as needed. | 10-15-2015 |
20150158262 | METHOD AND DEVICE FOR ADAPTIVELY CONTROLLING A HYDRAULIC PRESS - A method and apparatus for adaptively controlling a hydraulic press comprising a hydraulic drive unit for lifting and lowering a press ram. A piston chamber of the drive unit can be connected to a hydraulic accumulator formed by at least two groups of storage bottles, the connection established by hydraulic pipes that allows an expandable volume, stored in the storage bottles to supply the energy required for the press to perform a working stroke. Different filling pressures can be established in the storage bottles. A hydraulic accumulator can be adjusted to three operating modes, allowing a press controller to automatically analyze utilization and accordingly block individual groups or compartments of storage bottles, transfer the gas between storage bottles during a charging process at the end of the cycle, or adjust individual groups of storage bottles to different pressure levels. Advantageously, these three scenarios entail no waiting or transfer time. | 06-11-2015 |
20150118402 | METHOD AND DOCTOR BLADE DEVICE FOR SPREADING A RESIN PASTE ONTO A CARRIER FILM, AND A RESIN SHEET INSTALLATION FOR PRODUCING RESIN SHEETS - A method for spreading a resin paste onto a carrier film includes feeding resin paste into a doctor blade unit having a doctor blade, using a feed device that includes a discharge opening through which the resin paste is fed from the feed device into the doctor blade unit, moving a carrier film on a base surface through a doctor blade gap that is formed between the doctor blade and the base surface, and spreading the resin paste onto the carrier film using the doctor blade. The discharge opening is positioned to be immersed into the resin paste that is in the doctor blade unit during operation of a doctor blade apparatus configured to perform the method. A resin mat installation for producing resin mats, particularly of SMC, includes at least one doctor blade apparatus as described above. | 04-30-2015 |
20150083002 | METHOD FOR OPERATING A HYDRAULIC PRESS, AND HYDRAULIC PRESS - A hydraulic press and a method for operating the press in cycles. The aim is to lower energy consumption in a hydraulic press for shaping workpieces and a method thereof. Each cycle has at least one phase in which the storage pressure p | 03-26-2015 |
20140299266 | METHODS AND SYSTEMS FOR MANUFACTURING ADVANCED COMPOSITE COMPONENTS - A fiber placement system for manufacturing composite components includes at least one material storage enclosure including a material spool assembly, a swiveling roller assembly, and a redirect roller assembly, for each tow to be produced per course, at least one material feeding/cutting station configured with a nip roller drive system, and a cutting mechanism, at least one material transfer station configured with an individual, moveable guide tray for each tow to be produced per course, the moveable guide trays respectively being configured with a vacuum system, and at least one layup station comprising a vacuum table/layup surface, and a pick-and-place device equipped with an end-effector. | 10-09-2014 |
20140096887 | METHOD AND PLANT FOR PRODUCING MATERIAL BOARDS, AND A DEVICE FOR COMPRESSING THE NARROW SIDES OF A PRESSED-MATERIAL MAT - A method, a plant and a device for producing material boards in a press from spreading material, wherein a pressed-material mat made of the spreading material is spread by means of a spreading device onto an endlessly circulating forming belt and the pressed-material mat, during transport through the press, is compressed at its narrow sides transversely to the production direction by means of a compression device. The invention for the plant consists in that at least one compression device for compressing the pressed-material mat by displacing the narrow sides in the direction of the longitudinal central axis of the pressed-material mat and/or by compressing a region, adjoining the narrow sides, of the surface side of the pressed-material mat is arranged between the press and the spreading device. A device according to the invention has at least one means for compressing the pressed-material mat by displacing the narrow sides in the direction of the longitudinal central axis of the pressed-material mat and/or by compressing a region, adjoining the narrow sides, of the surface side of the pressed-material mat. | 04-10-2014 |
20140090528 | METHOD AND DEVICE FOR TRANSPORTING A FIBER CONTOUR CUT OUT FROM A PLANAR WOVEN FABRIC IN THE COURSE OF PRODUCING FIBER-REINFORCED PLASTIC MOLDED PARTS - A method and a device for transporting a fiber contour cut out from a planar woven fabric for producing a preform by a vacuum gripper. The method comprises the following method steps: a) a fiber contour is cut out from the woven fabric on a cutting table, b) a vacuum gripper moves over the fiber contour and brings a surface of the transport plate in contact with the cut-out fiber contour and a holding plate in contact with the planar woven fabric, c) the fiber contour is fastened to the transport plate by a vacuum device and through-holes in the transport plate and is lifted from the cutting table, while the holding plate fastens the woven fabric to the cutting table, d) after the transport plate is lifted, the vacuum gripper and/or the holding plate is/are lifted from the cutting table and the fiber contour is transported by the vacuum gripper. | 04-03-2014 |
20130209730 | PROCESS AND APPARATUS FOR PRODUCING A MULTILAYERED PANEL OF MATERIAL FOR SUBDIVISION INTO BEAM-SHAPED PRODUCTS AND A PANEL OF MATERIAL - A process and apparatus for producing a multilayered panel of material. In a first step an oriented single-layered mat is formed in a forming station from resinated particulate longitudinally orientable in machine direction, the single-layered mat is compressed in a continuous working press to form an oriented single-layered panel strand, the single-layered panel strand is subdivided at least once by a subdividing device into oriented single-layered panels, wherein a layered pack comprising three layers at least, or a layered pack strand comprising of three layers at least, is formed in a laying device and single-layered panels are used in two layers at least. The layered pack or the layered pack strand is compressed in a cyclically or continuously working press into a panel of material or into a material panel strand dividable by a dividing device into a panel of material and the panel of material is subdivided into beam-like products, more particularly artificially produced board layer woods, of greater height than width. | 08-15-2013 |
20130037986 | METHOD, SYSTEM AND RESIN SHEET FOR PRODUCING FIBER-REINFORCED MOLDED PARTS IN A MOLDING PRESS - Method, system and resin sheet for producing fiber-reinforced molded parts (SMC) by extrusion in a molding press from a fiber-reinforced resin sheet which is continuously produced in a flat web installation. At least one resin base layer is combined with fibers in a mixing device, is subsequently mixed in a fulling and saturating device, and is finally matured in a thickening device to form a continuous resin sheet, wherein the continuous resin sheet is cut to form cut sheets and is then transferred, either directly or joined in a structure with other cut sheets, by a transfer device to a tool of a molding press in which it is then pressed to form a fiber-reinforced molded part. Reinforcements are applied on at least one resin base layer for forming a reinforcement zone which is delimited in length and/or width relative to at least one resin base layer before joining the resin base layers. | 02-14-2013 |
20120233913 | METHOD AND SYSTEM FOR PRODUCING PELLETS FROM BIOMASS IN A PELLET PRESS FOR USE AS FUEL IN FIREPLACES - A system and a method for producing pellets from biomass in a pellet press for use as fuel in fireplaces. To produce pellets in an energy-saving and more energetically cost-effective manner as compared to prior art. In the method according to one embodiment, the biomass, which comprises cellulosic and/or lignocellulosic fibers, chips or shreds and is heated and dried in the course of the production process in a dryer, separated from the dryer air, and the biomass is supplied to a pellet press, wherein the temperature of the biomass is heated or substantially maintained by hot air in a treatment region between the dryer and the pellet press, and the treatment region comprises at least parts of the transport path and/or at least one additional device for carrying out at least one additional method stop, and wherein the temperature of the hot air exceeds at least 65° Celsius. | 09-20-2012 |