Method for producing drip irrigation pipes
AssigneeThe Machines Yvonand SA
InventorsJean-Pierre Guichard, Jean-Luc Vagnières, Eberhard Kertscher
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Abstract
In a method for producing drip irrigation pipes, a tube body is extruded from a thermoplastic synthetic material and provided with a wall. The tube body is led directly and in non-contact fashion to a pre-cooling chamber in which the tube body is pre-cooled and in which metering elements are pressed on to the wall and connected to the wall. The tube body is sized to a final diameter and further cooled in a cooling chamber.
Claims14
Method for production of drip irrigation tubes, in which a tube body is produced through a step of extrusion of a thermoplastic synthetic material, which tube body is formed to size and cooled off and in which tube body metering elements with a spacing apart from one another are inserted, are pressed onto the walling of the tube body and are welded together therewith, and which tube body is led through a drilling device, in which the walling is drilled through in the area of each of the metering elements, characterized in that the extruded tube body exiting the extrusion device is led directly and in a non-contacting way through an inlet aperture into a pre-cooling chamber in which the tube body is pre-cooled and in which the metering elements are connected to the walling and are completely pressed thereon, in that the tube body is subsequently led through a sizing device and is formed to the final diameter and arrives in the main cooling chamber in which the tube body is further cooled.
A method for producing drip irrigation tubes, comprising producing a tube body having a walling from a thermoplastic synthetic material in an extrusion device, leading the tube body directly and in a non-contacting way from the extrusion device into an opening of a first chamber for pre-cooling the tube body, pressing metering elements on to the walling of the tubing in spaced-apart positions and connecting the metering elements to the walling while the tube body is in the first chamber downstream of the opening, sizing the tube body to a final diameter and further cooling the tube body in a second chamber.
Dependencies are inferred from the claim text.