METHOD AND DEVICE FOR THE PRODUCTION OF TUBULAR STRUCTURES THAT ARE REINFORCED WITH A STRENGTHENING SUPPORT

摘要

A method for the production of reinforced tube-shaped structures ( 1 ) of rubber layers and reinforcement layers ( 2, 3 ) has the steps of: a) applying a first rubber layer ( 2 a) with a first extrusion unit ( 4 a) onto a series of sequential rigid cylindrical mandrels ( 5 ) which are coupled to each other and which are driven at an advancement speed (v) in the direction of an advancement axis (x); b) applying a first filament layer at defined desired filament angles (alpha₁) referred to the advancement axis (x) with a bobbin creel unit ( 10 a) having means which rotate about the advancing mandrels ( 5 ); c) applying atleast one further rubber layer ( 2 b) to the first filament layer utilizing at least one additional extrusion unit ( 4 b); d) continuously measuring the advancement speed (v) of the mandrels ( 5 ); controlling the quantity, which is applied via the first extrusion unit ( 4 a), in dependence upon the measured advancement speed (v) in order to obtain a defined desired thickness of the first rubber layer ( 2 a); f) controlling the rotational speed of the first bobbin creel unit ( 10 a) during the rotation about the mandrels ( 5 ) in dependence upon the advancement speed (v) in order to obtain a filament layer having a defined desired filament angle (alpha₁).