Abstract: The invention relates to a device and a method for controlling the feed of polymer melt, which has been discharged from an extruder, to a plastics processing machine formed from at least two subunits (1, 2), to which the polymer melt discharged from the extruder is fed via a distributor (13) which is positioned downstream of the extruder and which serves for splitting up the polymer melt into partial streams corresponding to the number of subunits. According to the invention, the partial streams are each fed to a subunit by means of a gearwheel pump (11, 12). The volume flows fed to the subunits (1, 2), which are of substantially identical design, can be respectively separately controlled in open-loop or closed-loop fashion through control of the drive rotational speed of the respective gearwheel pump (11, 12) in a manner dependent on operating parameters and/or the configuration of the respective subunit (1, 2).

Abstract: The invention relates to an apparatus for cross-sectionally shaping a multiplicity of plastics strands guided in parallel alongside one another over at least one rotatable shaping roller (18, 19, 20), in which the shaping roller is provided on its surface with a plurality of encircling shaping recesses which are arranged in parallel and in which the cross section of the plastics strands is shapeable in accordance with the cross-sectional shape of the shaping recesses, wherein preferably three shaping rollers (18, 19, 20) of the same type for sequentially shaping the plastics strands are arranged transversely to the running path of the plastics strands, wherein the plastics strands are guided between a pair of two successive shaping rollers (19, 20) on a first side of the plastics strands and a third shaping roller (18), which is arranged, between the first (19) and second shaping roller (20) of the pair of shaping rollers, on the second side of the plastics strands in the running direction of the plastics str

Abstract: The invention relates to a device for impregnating fiber bundles with a polymer melt, in which device fiber bundles, which are inserted in parallel with one another into a slot-like infeed of an impregnation unit (4), are guided through between two guide plates (16, 17), which have undulating surfaces and are arranged so as to be complementary to one another at a defined spacing, and are discharged from the impregnation unit (4) via an outlet (28), the fiber bundles being saturated with the polymer melt while passing through the impregnation unit (4), which polymer melt following the slot-like infeed is introduced between the guide plates (16, 17) into the passage (29). According to the invention, the impregnation unit (4) comprises at least two passages (29) for a defined number of fiber bundles in each case, the passages (29) each comprising an inlet (26) for polymer melt.

Abstract: The invention relates to a device for impregnating fiber bundles with a polymer melt, in which device fiber bundles, which are inserted in parallel with one another into a slot-like infeed of an impregnation unit (4), are guided through between two guide plates (16, 17), which have undulating surfaces and are arranged so as to be complementary to one another at a defined spacing, and are discharged from the impregnation unit (4) via an outlet (28), the fiber bundles being saturated with the polymer melt while passing through the impregnation unit (4), which polymer melt following the slot-like infeed is introduced between the guide plates (16, 17) into the passage (29). According to the invention, the impregnation unit (4) comprises at least two passages (29) for a defined number of fiber bundles in each case, the passages (29) each comprising an inlet (26) for polymer melt.