摘要:
A device for the comminution of moisture-containing materials includes a housing that forms an impact chamber having a rotating striking means driven therein via a shaft. The housing includes a bottom plate, a cover, a wall connecting the bottom plate and the cover, an inlet opening and an outlet opening. A tub including at least one layer of plastic is arranged at least along the bottom plate. A wear plate is arranged on an other side of the layer of plastic. Objects of the invention include increasing the wear resistance of the device, realizing self-cleaning effects and enabling simple and safe cleaning, in particular, at a standstill.
摘要:
An apparatus and method for the continuous production of materials, preferably for producing material boards made of essentially non-metallic material, comprising a continuous furnace (1) for continuously heating material (3) on an endlessly circulating conveyor belt (10) and a press (2) provided downstream in the production direction (15), wherein the continuous furnace (1) comprises a plurality of magnetrons (4) for generating electromagnetic waves and hollow conductors (5) with outlet openings (6) for feeding the waves into a radiation chamber (14). The invention is intended to solve the problem of reacting to various operating modes for the continuous furnace and, in particular, to heat up the material used in the best possible manner for later pressing. The invention is characterized in that a control or regulating apparatus (17) is arranged for controlling individual or grouped magnetrons (4) in order to provide them with different powers (L) for producing a differentiated power profile (9), preferably in and/or transversely to the production direction (15). (1491)
摘要:
An incineration grate includes several levels including first and second grate bars arranged in rows alongside one another and in rows one above another, forming step-shaped combustion surfaces with their upper supporting surfaces. At least once in an area of the upper supporting surfaces, the first grate bars form, over their width, a smaller supporting surface for fuel than that of the second grate bars via a first shoulder disposed inwards in a direction of a longitudinal center plane. In an area of the upper supporting surfaces, the second grate bars have a supporting surface with a larger width in order to form an overlap with the first grate bars via a second shoulder disposed outwards over the width of the first grate bars. The second grate bars have at least one pin configured to be introduced into a pocket in the first grate bars and increase the larger width.
摘要:
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.
摘要:
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.
摘要:
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.
摘要:
The invention relates to a method and a device for producing a three-dimensional preform (19) from a laid scrim (1) in the course of the production of fiber-reinforced molded parts, comprising a draping device (3) and a transport device (21) for the laid scrim (1), the draping device (3) comprising at least one draping mold (18) for a laid scrim (3) and means for shaping the laid scrim (3) in accordance with the contour of the draping mold (18), the means being movable relative to the draping mold (18). The aim of the invention is to ensure an expeditious and yet high-quality shaping, especially of large-surface-area and/or complex geometries of a preform. At least a first and a second tray (7) are used in the method as the transport device (21), the first tray (7) releasing the laid scrim (3) for fixation by means of a fixing ram (4) and/or a draping ram (5) and the second tray (7) then placing the laid scrim (1) in the draping mold (18) by way of a movement originating from the draping device.
摘要:
The invention relates to a method and a device for producing a three-dimensional preform (19) from a fibre fabric (1) as part of production of fibre-reinforced formed components, comprising a draping device (3) and a transport device (21) for the fibre fabric (1), wherein said draping device (3) at least comprises a draping form (18) for a fibre fabric (3) and means, movable in relation to the draping form (18), for reshaping the fibre fabric (3) on the basis of the contour of the draping form (18). The problem addressed by the invention is that of ensuring swift yet high-quality reshaping, particularly of large-area and/or complex geometries of a preform. To solve the method problem, the invention states that the transport device (21) successively releases the fibre fabric (1) in the direction of the draping form (18) and the released regions of the fibre fabric (1) are fixed and/or draped on the draping form by means of a fixing stamp (4) and/or a draping stamp (5).
摘要:
A tape-laying apparatus includes a material feeder configured to feed tapes, and a laying device configured for picking up and placing tapes onto a laying table. The laying device includes a transporter and a vacuum. The vacuum is connected to the transporter such that at least one tape is configured to be held on the transporter by a negative pressure generated by the vacuum. The transporter includes at least two endless transport belts, which circulate around deflection rollers. The transport belts run parallel to one another in a same transport plane.
摘要:
A device for separating material composites to be disposed of, including at least two material fractions with differing material properties, and a method for separating such material composites are provided. The device, in a region of an upper cover plate, has a bowl-shaped dispensing channel having at least one opening facing toward an impact chamber, and a dispenser arranged in the channel and designed to receive material fractions of a second type from the region of the chamber above a first separating screen and/or near the upper cover plate. Individual material fractions of a material composite, such as a material fraction of the second type to be comminuted and having a lower density than a first material fraction, may be separated in larger pieces from remaining material, to facilitate the transport of individual material fractions and further processing as part of raw material recovery.