Method and device for the production of an elongated product, and elongated product
AssigneeLEONI Kabel GmbH
InventorsChristian Ernst, Sebastian Goss, Joerg Wenzel
Life of this patent
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Abstract
A method for producing an elongated product. By an extrusion unit, a material is extruded onto a core of the elongated product as a casing having a predetermined wall strength. Downstream of the extrusion unit and while the material is still moldable, the elongated product is supplied in a conveying direction to a molding unit. A portion of the material is held by the molding unit and, from the held material, a molded part is formed in an integral manner on the casing. The formation of the molded part is thereby carried out in an advantageous manner, via a deformation of material of the casing.
Claims22
A method for producing an elongated product, which comprises the steps of:
- continuously conveying a core of the elongated product through an extrusion head of an extrusion unit;
- extruding, via the extrusion unit, a material with a constant flow rate onto the core in a form of a sheath with a predetermined substantially constant wall thickness;
- feeding the elongated product in a conveying direction to a molding unit downstream of the extrusion unit and while the material is still moldable;
- backing up in the conveying direction part of the material via the molding unit by displacing part of the material relative to a remaining part of the material resulting in backed-up material;
- and
- forming a molded part from the backed-up material in one piece on the sheath.
Dependencies are inferred from the claim text.