Tension compensator
AssigneeGilbos N.V.
InventorsHans Evenepoel, Erik Gilbos, Sigurn Vandenbrande, Björn Quidé
Life of this patent
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Abstract
The current invention concerns an improved system and method for the manufacturing of alternating S/Z cabled yarn 16) or connected alternating S/Z twist plied yarns, in which tension decrease or increase is avoided by variable longitudinal contraction when twist plying or overtwisting yarns. This longitudinal contraction Is very difficult to predict and leads to tension in the yarns, which can affect the quality. This tension can also be reproduced in the installations. This invention tries to improve this by providing a tension compensator (24) that (partially) compensates the tensions and forces between different, subsequent forces for processing yarns.
Claims15
System for manufacturing of alternating S/Z cabled yarn or connected alternating S/Z twist plied yarn in a continuous fashion, including:
- a at least two twist plying installations, each for manufacturing an alternating S/Z twist plied yarn from at least two incoming yarns, in which the twist plying installations each include a ply fixation member to connect the incoming yarns;
- b a cabling installation for manufacturing an alternating S/Z cabled yarn or a connected alternating S/Z twist plied yarn from the at least two alternating S/Z twist plied yarns, in which the cabling installation includes at least two overtwist jets for the overtwisting of the at least two alternating S/Z twist plied yarns;
- characterized by the fact that between at least one of said at least two twist plying installations and the cabling installation a force compensation member is provided for applying a variable compensation for part of the tractive forces on at least one of the said alternating S/Z twist plied yarns between the at least one of said at least two twist plying installations and the cabling installation, in which the force compensation member is positioned between the fixation members of the twist plying installations on a first side and the overtwist jet of the cabling installation on a second side and in which the force compensation member is configured for applying the variable compensation before the alternating S/Z twist plied yarns are overtwisted in the cabling installation.
Method for the continuous manufacturing of alternating S/Z cabled yarn or connected alternating S/Z twist plied yarn, including the following steps:
- a twist plying at least two groups of two or more yarns in twist plying installations for the manufacturing of at least two alternating S/Z twist plied yarns;
- b continuously feeding of the alternating S/Z twist plied yarns to a cabling installation in which a tractive force is applied on the alternating S/Z twist plied yarns;
- c cabling of at least the alternating S/Z twist plied yarns in the cabling installation for the manufacturing of the alternating S/Z cabled yarn or the connection of at least the alternating S/Z twist plied yarns in the cabling installation for the manufacturing of the connected alternating S/Z twist plied yarn;
- characterized by the fact that the tractive force is adjusted during step b by a force compensation member on at least one of the at least two alternating S/Z twist plied yarns between at least one of the twist plying installations and the cabling installation before the alternating S/Z twist plied yarns are overtwisted in the cabling installation.
Dependencies are inferred from the claim text.