Cable copper core continuous annealing production line

Abstract

The invention provides a cable copper core continuous annealing production line. A pay-off mechanism, a tensioning mechanism, a continuous annealing mechanism, a drying mechanism and a take-up mechanism are fixedly arranged on the ground in sequence. A cable core is let out from the pay-off mechanism, tensioned through the tensioning mechanism, fed into the continuous annealing mechanism, dried through the drying mechanism and coiled by the take-up mechanism. The cable copper core continuous annealing production line provided by the invention is a single-line electrified continuous annealing device. The annealing device is generally mounted between a final cable tensioning wheel and a take-up reel on a cable tensioner to form a cable tensioning-annealing-take-up continuous production unit.The cable copper core continuous annealing production line improves labor conditions, improves the production efficiency, is uniform in heating and high in annealing quality, reduces heat taken awayby a furnace body, a bracket and the like during coiling and coiled cable annealing, greatly saves fuel or electric energy and reduces the production cost.

Description

Technical field [0001] The invention relates to the field of cable production, in particular to a continuous annealing production line for cable copper cores. Background technique [0002] After the copper and aluminum wire is drawn, due to the reduction in the cross section of the wire, the increase in length, the refinement of the metal crystal grain, the distortion and dislocation of the crystal lattice, and the internal stress, that is, the phenomenon of work hardening. After drawing, the strength and hardness are increased, but the elongation and conductivity are reduced, and the resistivity increases. The conductive core of the wire and cable is mainly required for conductivity, toughness and strength. Therefore, the soft and hard state of the conductive core is determined according to different requirements to meet the technical requirements of the product, and the soft core or semi-hard core needs to pass through Annealing softens. [0003] The aluminum wire is active due...

AI Technical Summary

Problems solved by technology

[0004] Most of the existing annealing equipment is intermittent, that is, the bundled cables are heated, annealed and cooled in sequence. Although gas protection can be used in this process, many useless processes are added, the labor intensity is high, the production cycle is long, and the output is low. The equipment is relatively large and occupies a large area. At the same time, the energy consumption is also increased, which increases the production cost; the copper wire will be oxidized during the transfer process after heating, which will cause serious oxidation on the cable surface, and the bundled cables will also be damaged due to insufficient heat. Uniform results in incomplete annealing

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