Abstract: An extrusion head and a method for producing an elongated hollow body as an extrudate of an extrusion of extrusion material are provided. The extrusion head includes: a housing; a mandrel mounted in the housing, and a mouthpiece arranged downstream of the mandrel in a direction of extrusion. The extrusion material can flow around the mandrel in the direction of extrusion of the extrusion head. The mandrel includes an end-side mouthpiece section arranged in an opening of the mouthpiece so as to form a circumferential gap between the end-side mouthpiece section and an opening in the mouthpiece, and the mandrel is pivotable about at least one axis transverse to the direction of extrusion to change a geometry of the circumferential gap.

Abstract: A method for charging at least one extruder with at least one material web including rubber and/or plastics mixtures includes: transporting the at least one material web, at a distance from at least one material feed of the at least one extruder, into a region of a material feed, in each case by a conveying device; and receiving and/or processing and introducing, by at least one handling device having at least one tool, an initial region of the at least one material web into the at least one material feed of the at least one extruder. At least the at least one extruder, the conveying device, and the at least one handling device comprise a production plant.

Abstract: An apparatus for feeding a screw-type extruder with material strips made of rubber mixtures or plastics mixtures, which strips are arranged in a folded zig-zag shape and can be supplied by means of at least one conveyor belt to a supply region of a supply element that is funnel-shaped, at least in portions, and an extruder. A motor-driven conveyor device for the material strip is arranged within the supply region, which device comprises a pressure surface that can abut the surface of the material strip and can be moved in a reversing manner. Said pressure surface only abuts the surface of the material strip in the conveying direction and, in the direction opposite the conveying direction, it adopts a return position in which it is spaced from the surface of the material strip.

Abstract: In an embodiment, the present invention provides an extrusion device for producing a profile from plasticizable material, including at least one extruder head, in which the plasticized material can be supplied to a gap which is delimited by at least one roller and at least one bar that bears against a bearing surface in a predefined position via a fixing element in an operating position of the extrusion device. The fixing element includes a flat pressure-transmitting element which, in the operating position, can be placed against a pressure surface of the bar that is opposite the bearing surface, the pressure-transmitting element including a double-armed lever, which is pivotable about at least one axis, in order to compensate for a possible deviation from the predefined parallel orientation of the pressure-transmitting element with respect to the pressure surface of the bar.

Abstract: A device and method for the radioscopic examination of a continuous strip-shaped material of rubber which runs continuously in particular. During the movement, the strip-shaped material is x-rayed by a radioscopic measurer and the entire cross-sectional surface is detected so that foreign bodies or defects present in the material are detected according to their position and orientation. An elimination device removes the previously identified foreign body during the feed movement of the material in that a tool, configured as a punching tool, of the elimination device is moved synchronously with the material.

Abstract: An extrusion head configured for at least one extruder includes a flow channel a finishing die; and an opening in operative communication with the flow channel, wherein the opening is configured to at least partially accommodate a screw shaft of an additional extruder.

Abstract: An extrusion head configured for at least one extruder includes a flow channel a finishing die; and an opening in operative communication with the flow channel, wherein the opening is configured to at least partially accommodate a screw shaft of an additional extruder.

Abstract: A device for processing a polymer material including a first screw having a first length; and a second screw having a second length different from the first length, wherein the first screw is configured to be rotated at one of a direction and a speed of rotation that is independent from a respective speed or rotation of the second screw.

Abstract: An extrusion head for at least one extruder including a first head part having a first joint and a second head having a second joint wherein the first head part and the second head part are pivotable with respect to each other using the respective first joint and second joint. When the extrusion head is in an operative position, the first head part rests against a first sealing face and the second head part rests against a second sealing face. A drive element is connected to the first head part and the second head part using a connecting element. The first head part and the second head part are movable using the drive element from a fixed operative position into an open rest position.

Abstract: An extrusion head for at least one extruder including a first head part having a first joint and a second head having a second joint wherein the first head part and the second head part are pivotable with respect to each other using the respective first joint and second joint. When the extrusion head is in an operative position, the first head part rests against a first sealing face and the second head part rests against a second sealing face. A drive element is connected to the first head part and the second head part using a connecting element. The first head part and the second head part are movable using the drive element from a fixed operative position into an open rest position.

Abstract: A strand-form vehicle seal is equipped with a flexible reinforcement with a substantially U-cross section. The flexible reinforcement includes at least two different substances formed of individual sections of a nonmetallic, soft-elastic material together with individual sections of another nonmetallic, however dimensionally stable and hard or rigid material. The individual sections in the reinforcement are interrupted and disposed intermittently each alternating one after the other along the direction of the reinforcement. The rigid sections form the clamping portions of the reinforcement. The soft elastic sections disposed between them lend flexibility to the reinforcement. In this manner, the vehicle seal is easier to process, dispose of and recycle. A method is also disclosed for making the seal.

Abstract: A system for producing cables includes an extrusion apparatus with at least one extruder and a head for receiving at least one line of the cable. An induction heating apparatus is disposed downstream of the extrusion apparatus. Downstream of the head and the induction heating apparatus is a suspended vulcanization tube that extends horizontally and forms a catenary curve. The vocalization tube includes a movable and an immobile telescoping tube wherein the mobile tube is adjacent to the head and enables access to the head. The induction heating apparatus downstream of the head is installed in the movable tube or is securely attached to the movable tube, and together with the movable tube is movable. The movable tube and the interiorly installed or exteriorly attached induction heating apparatus is insertable into the immobile tube or is slidable over the immobile tube.

Abstract: A method and a device for the production of electrically conductors, especially current-carrying lines, having a sheathing made of a thermoplastic material. An extrusion head having a bore that determines the outer circumference of the conductor is employed for this purpose. The bore is variably adjustable in order to set a different outer circumference of the conductor during the production process.

Abstract: An installation for cross-linking an insulation layer or semiconductor layer of a cable, which is being produced and which passes through a reaction chamber filled with hot inert gas under pressure, provides that the conductor or conductors, as they progress through the reaction chamber and, accordingly, as the cross-linking progresses, are heated more strongly by inductive heating. Due to this measure, the cross-linking, which progresses from the inside and the outside to the center of the insulation layer or semiconductor layer and is associated with an increase in dimensional stability, is utilized for letting the cross-linking proceed more rapidly by increasing the temperature in the interior, that is, in the conductor. In this connection, the increase in dimensional stability of the insulation and/or semiconductor layer, which sets in as the cross-linking progresses, is utilized in order to increase the temperature of the conductor even more.

Abstract: An extruded strand-shaped flexible profile includes a plurality of first elements including a first extrudable plastic having a first deformability, a first flexibility and a first hardness, and a plurality of second elements including a second extrudable plastic having a second deformability, a second flexibility and a second hardness. Each of the first and second elements are arranged alternatingly one after the other in a lengthwise direction of the strand. The first deformability is greater than the second deformability, the first flexibility is greater than the second flexibility, and the second hardness is greater than the first hardness. In addition, a method for producing a strand-shaped flexible profile includes extruding at a first extrudable plastic and a second extrudable plastic alternatingly one after the other in a lengthwise direction.

Abstract: A system for producing cables includes an extrusion apparatus with one or a plurality of extruders and a head through which the line or lines for the cable pass and after which an induction heating apparatus is arranged, whereby downstream of the head and the induction heating apparatus is a suspended vulcanization tube that extends horizontally in the manner of a catenary curve and that constitutes a plurality of tube pieces of which the tube piece adjacent to the head is a telescoping tube enabling access to the head. It is the object to increase the efficiency of a cable production system using measures that make possible earlier and more rapid heating of the insulating layers applied in the head and simpler operation of the system and concurrently permit simpler and more rapid access to the molding die when cleaning the head and when a tool is being exchanged.