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).

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).

Abstract: A drilling apparatus for making holes in a tube body in the area of metering elements comprises drilling means which are disposed on a framework. Via sensor means, the position of the metering elements in the tube body are ascertained. Based upon a signal triggered thereby, the drilling operation is carried out. For this purpose, the tube body is led over a roller which is rotatingly held on the framework. The tube body to be drilled wraps around the roller around an area and is then led away. In this wrap-around area, in which the tube body rests upon the roller, the position of the metering means in the tube body is ascertained by the sensor means; the holes can then be made. The making of these holes can take place very precisely since the tube body cannot undergo any longitudinal stretching when it is resting on the roller.