Abstract: An extrusion device comprising an extruder screw for conveying extrudable material, in particular natural or synthetic rubber materials. The extrusion device also comprises a nozzle having two nozzle dies that are displaceable relative to one another. Furthermore, the extrusion device comprises a reinforcing material feeder for conveying reinforcing material in the direction of the nozzle, via which reinforcing material and extrudable material are discharged together from the extrusion device. The reinforcing material is guided in a horizontal plane of separation.

Abstract: An extruder arrangement comprising a screw extruder for viscous masses, in particular plastic melts or natural or artificial rubber mixtures. The screw extruder comprises an outlet connection that is coupled to a gear pump and further comprises an extruder screw. The outlet connection is arranged adjacent on the side of the extruder screw and a detachable cover or lid is arranged at the front side of the extruder screw.

Abstract: An extrusion conveying device having an extruder for the mixing of components, in particular a rubber mixture or TPE. A volumetrically operating conveyor, especially a gear pump, is disposed at the output side of the extruder. A subsidiary conveyor supplies to the extruder at least one component having a marker substance. A detection device for the marker substance is disposed on the output side of the extruder and/or the volumetrically operating conveyor for detecting the distribution quality of the marker substance. A control device is coupled to the detection device for adjusting the speed of the extruder and/or the volumetrically operating conveyor in response to the detected distribution quality of the marker substance detected by the detection device.

Abstract: An extruder for viscous masses, and including an extruder screw and a positive-displacement gear pump disposed downstream of the extruder screw as viewed in the conveying direction. The positive-displacement gear pump has at least one conveying gear and at least one positive-displacement gear. The axis of the conveying gear is disposed essentially at right angles to the axis of the extruder screw, and the axis of the positive-displacement gear is disposed essentially in the same direction as the axis of the extruder screw.

Abstract: The invention relates to a gear pump which is suitable for delivering highly viscous materials. The aim of the invention is to provide a gear pump having a low-wear and low-maintenance bearing system, high output and good self-cleaning properties. For this purpose, the gear pump according to the invention comprises a housing, a gear section comprising a sun wheel and a plurality of stationarily mounted planet wheels, an input screw section comprising an input screw shaft linked with the sun wheel in a rotationally fixed manner and an input transfermix area, and an output screw section comprising an output screw shaft linked with the sun wheel in a rotationally fixed manner and an output transfermix area. The screw shafts, in the transfermix areas, have flight depths that decrease toward the gear section.

Abstract: A conveying apparatus comprising an extruder having a housing, a gear pump connected to the extruder, an extruder cylinder rotatably mounted in the housing, and a plurality of pins extending radially outwardly from the extruder cylinder. The extruder housing is provided with helical conveyor paths and openings for the pins.

Abstract: A pin extruder for conveying polymeric material, especially elastomeric material, comprising a stationary extruder housing and an extruder screw rotatably mounted in the housing. A purality of radially outwardly extending pins are disposed on the extruder screw, at least a portion of which is embodied as a cylinder. The extruder housing, adjacent to the cylinder portion of the extruder screw, is provided with essentially helical conveyor paths and with openings for the pins.

Abstract: The invention relates to a gear pump which is suitable for delivering highly viscous materials. The aim of the invention is to provide a gear pump having a low-wear and low-maintenance bearing system, high output and good self-cleaning properties. For this purpose, the gear pump according to the invention comprises a housing, a gear section comprising a sun wheel and a plurality of stationarily mounted planet wheels, an input screw section comprising an input screw shaft linked with the sun wheel in a rotationally fixed manner and an input transfermix area, and an output screw section comprising an output screw shaft linked with the sun wheel in a rotationally fixed manner and an output transfermix area. The screw shafts, in the transfermix areas, have flight depths that decrease toward the gear section.