Automatic tension control apparatus for longitudinally covered wire

Abstract

The invention discloses a tension automatic control device of longitudinally wrapped wires, pertaining to the field of processing technology of electric wires and cables. The tension automatic control device of the invention comprises a tension sensor, a swing stem and a guide roll. The tension sensor is installed on a braider and provided with a first sensing pin and a second sensing pin which are electrically connected with a controller of the braider respectively by signal wires. The swing stem is connected on the tension sensor and a swing stem contact at the upper end of the swing stem is corresponding to the first sensing pin and the second sensing pin while the lower end of the swing stem forms a free end and is provided with a bending part on which the guide roll is arranged. The tension automatic control device of the invention has the advantages of ensuring that the longitudinally wrapped wires enter the braider to be outside conducting wires through lapping, namely outside the wire core, under the constant tension, thereby not only being beneficial to the avoidance of wasting the longitudinally wrapped wires, but also ensuring the consistent longitudinally wrapped pitch of the longitudinally wrapped wires so as to avoid the occurrence of the defect rate.

Description

technical field [0001] The invention belongs to the technical field of wire and cable processing, and in particular relates to an automatic tension control device for longitudinally covered wires. Background technique [0002] The longitudinally covered wire mentioned above is a foil strip, such as a copper foil strip or an aluminum foil strip. In order to make the wire have a good shielding effect, it is usually necessary to wrap the foil tape longitudinally outside the extruded core with an inner sheath, and then weave a metal wire such as steel wire, aluminum-magnesium alloy wire or copper-clad stainless steel wire on the outside. formed shielding layer. The work of longitudinally covering the longitudinally covered wire outside the wire core and braiding the metal shielding layer is performed by the braiding machine commonly used in the industry. In order to detect whether the longitudinally covered wire has tension, the braiding machine is usually equipped with a tensi...

AI Technical Summary

Problems solved by technology

However, in the actual situation, it is necessary to ensure that the longitudinally covered wire is introduced into the braiding machine under constant tension and then longitudinally wrapped outside the wire core. If the tension of the longitudinally covered wire is too large or too small, it will cause waste of the longitudinally covered wire and unnecessary Improvement of yield rate

Images