Quick double-null-line wire threading device

Abstract

The invention discloses a quick double-null-line wire threading device. The quick double-null-line wire threading device comprises a water absorption column, an air pipe and a plurality of air nozzles, a roller is arranged in the water absorption column, an arc-shaped backflow plate is obliquely arranged on one side of the water absorption column close to the air pipe, the inner wall of the air pipe is provided with a protrusion, and the air pipe on the same side of the protrusion is provided with a plurality of via holes; the air nozzles are provided with conical air gathering cavities inside, the internal diameter of the air gathering cavities decreases along the wind direction, airflow in the air inlet holes injects to the inner walls of the upper portions of the air gathering cavities from the front side, adjusting rings are rotationally arranged in the two air inlet holes, and screw protrusions are fixed on the inner walls of the air outlet holes. Airflow in the two air inlet holes changes its direction via the expanding section A, the straight section and the expanding section B and is reflected continuously via the inclined inner walls of the expanding section A and the expanding section B to finally form stable-velocity airflow to be ejected from the tail end of the expanding section B. Accordingly, rate of rotational flow due to non-uniform local stress on the inner walls of the air gathering cavities is decreased.

Description

technical field [0001] The invention relates to the field of copper stranded wire processing, in particular to a double-neutral wire fast wire passing device. Background technique [0002] During the production and processing of copper wire, when the copper wire is pulled, stretched, twisted and wound, stress will be generated inside it, and it will become hard or even oxidized locally, so this kind of crude product cannot be further processed into copper soft stranded wire. Therefore, the copper stranded wire must be annealed. The general treatment method is to use nitrogen as a protective gas and anneal in the annealing furnace. First, the air is extracted from the annealing furnace to form a negative pressure to a certain extent and then filled with nitrogen. The pressure is formed inside, and when it is heated to about 300 degrees Celsius, it is kept for one end of time, and then the furnace is turned on to cool naturally. However, after this kind of annealing treatment...

AI Technical Summary

Problems solved by technology

Traditional annealing cooling water uses tap water quality and natural cooling precipitation, but such methods have a great impact on the smoothness and shelf life of the copper wire surface

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