Patent ID: 7143622

Claim:
Method for producing and separately coiling at least two individual, simultaneously extruded tubes ( 20 , 30 ) by means of a single coiling device, said method comprising extrusion of a strand of a composite profile ( 10 ) comprising at least two individual tubes ( 20 , 30 ) of the same or different outside and inside geometries, such that the individual tubes ( 20 , 30 ), which are arranged side by side, are connected with each other by a junction ( 40 ) of minimal width, feeding the strand of the composite profile ( 10 ) emerging from the extrusion press (A) at a strand exit speed (v 1 ) into a speed regulation device (D), in which the strand of the composite profile ( 10 ) is adjusted to a speed (v 2 ), then, to produce separate strands of the individual tubes ( 20 , 30 ), separation of the junctions ( 40 ) of the strand of the composite profile ( 10 ) in the longitudinal direction of the composite profile ( 10 ) in a separating device (E), and then feeding the strands of the individual tubes ( 20 , 30 ) separately at unaltered speed (v 2 ) to a coiling device (S), in which the strands of the individual tubes ( 20 , 30 ) are each wound separately on a coil (S 1 , S 2 ), such that the two coils (S 1 , S 2 ) of the coiling device (S) are moved by a common drive at a coiling speed (v 3 ) that is equal to the speed (v 2 ).