Abstract: In a method for producing drip irrigation tubes, a tube body is extruded, in which tube body dosing elements are inserted and are connected to the inner surface of the tube body. In the region of the dosing elements, outlet apertures are made in each case in the tube body using a laser boring device with a specified radiation intensity, through which apertures the water can escape in drops. The radiation intensity of the laser boring device is reduced between procedures. Via a laser optical system co-operating with the laser boring device, the laser beam is led in a controlled way over the surface of the drip irrigation tube, and alphanumerical symbols are burned into this surface. Production of drip irrigation tubes and their labeling can thus be carried out in one operation.

Abstract: The invention concerns an installation for manufacturing a drip irrigation pipe (8) formed of a pipe (8) provided with drippers (4), including a dripper feed station (37), followed by an extrusion station (10), including an extrusion head (14) producing a tubular blank (22) and means for welding the drippers (4) to the inner wall of said blank (22), characterized in that the dripper welding means (4) include a support surface (50) and a counter-support surface (56) between which the drippers (4) are pressed against said tubular blank (22) so as to be welded thereto, said support (50) and counter-support (56) surfaces being arranged upstream of the calibrating means (24).

Abstract: A device for continuously producing drip irrigation tubes comprises an extruding device (1) for producing a tube body (2), a calibrating device (3), and a cooling device (19) for the tube body (6). In addition, a feeding device (5) for feeding dosing elements (6) into the tube body (2) and means for joining these dosing elements (6) to the inner wall of the tube body (2) are provided. This feeding device is comprised of a pressing element (17) that is formed by the end area of the guideway (4) while protruding into the extruded tube body (2), and of a pressing member (18) that can be pressed against the tube body (2) from the exterior in the vicinity of pressing element (17). The calibrating device (3) is made of a tubular body (22) whose insertion area (23) narrows to the desired diameter of the tube body (2) and whose longitudinally elongated body area (24) protrudes into the cooling device (19).