Continental Aktiengesellschaft

Continental Gummi-Werke Aktiengesellschaft

Fritz Rothemeyer

Harald Kranz

Horst Sergel

Michael Glinz

Stefan Wode

Rainer Alles

Roland Merten

Dieter Landweer

Udo Pietratus

Gunter Homt

Wolfgang Kleiner

A method for cutting to length a strip-shaped profiled member of unvulcanized rubber material by a cutting edge includes the step of providing a speed between the cutting edge and the profiled member to be cut of at least 2.5 m/s during the cutting action. The device for carrying out the method includes a carriage and a tool with a cutting edge fastened to the carriage. The carriage has an acceleration path, defined between a rest position of the carriage and a side of the profiled member facing the carriage, of between 0.2 and 1 m. The carriage has a deceleration path, defined between an oppositely arranged side of the profiled member and an end position of the carriage, of at least 0.1 m.

Method for cutting to length an unvulcanized rubber strip member by a

A linear drive system has a guide rail and a transport device that is moveable along the guide rail. At least one tubular, flexible hollow body is positioned along the extension of the guide rail. The hollow body consists essentially of an elastomeric material and has a first and a second end. The at least one hollow body is loadable with a pressure medium from the first or the second end. At least one squeezing roller is rotatably connected to the transport device for forcing sealingly the at least one hollow body against a counter element. The guide rail consists essentially of a flexible elastomer.

Pressure-medium activated linear drive system

A method of and extrusion press for producing profiled strands from elastomeric material, especially undulated edges, for conveyor belts, including a linear base and a ridge placed on the base. Portions of the strand change direction along its length. The extrusion press method is used, and different flow velocities are imparted to the elastomeric material at different portions of the cross section of the strand. The extrusion press is equipped with a nozzle plate having profile openings corresponding to the cross sectional shape of the desired profiled strand. On that side which faces the press equipment--including wormgear, piston, and rollers--the nozzle plate is equipped with approach surfaces, which lead to the profile openings at angles inclined to the direction of extrusion, and which have different lengths in different cross-sectional regions of the profile openings. On that side which faces away from the press equipment, the extrusion press is provided with guide elements which are spaced from one another, extend in the direction of extrusion, and define or limit the transverse movement of the exiting profiled strand.

Method of and apparatus for producing profiled strands from elastomeric

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Isernhagen, Germany

Fritz Rothemeyer