A kind of loose tube constant temperature cooling device and cooling method

Abstract

The invention discloses a loose tube constant-temperature cooling device and a cooling method and relates to the field of optical cable manufacturing. The cooling device comprises a water tank and a constant-temperature water tank, wherein a stripy water storage box is arranged inside the water tank in a length direction of the water tank; a constant-temperature water tank is connected with the bottom of the stripy water storage box through a pipeline; the stripy water storage box is divided into a front section and a rear section; the top of the front section is opened; a cover plate is arranged at the top of the rear section; the cover plate is folded into a V shape from the middle part, and then two sides walls and a bottom side are formed; a plurality groups of convex ribs swell upwards from two side walls of the cover plate; two sides of each convex rib are disconnected from the side walls of the cover plate; each side of each convex rib and the side wall of the cover plate form an overfall gap; the convex ribs are perpendicular to the bottom side of the cover plate. By adopting the cooling device and the cooling method, a good water circulation effect is ensured, the coolingeffect of a loose tube is improved, and the quality of the loose tube is further improved.

Description

technical field [0001] The invention relates to the field of optical cable manufacturing, specifically designing and a constant temperature cooling device and cooling method for a loose tube. Background technique [0002] Loose tube is a kind of sleeve that can loosely place optical fiber in optical cable to protect optical fiber from internal stress and external side pressure. Loose tubes are usually made of PBT (polybutylene terephthalate, polybutylene terephthalate) material. During the manufacturing process, PBT needs to be cooled by cooling water after being melted and extruded by the extruder at high temperature to make the molten After the PBT cools, crystallizes and shrinks as expected until it is formed into a loose tube. [0003] The existing cooling method is: the extruded loose tube passes through a water tank, and there is cooling water in the water tank. The part of the loose tube in the water tank is completely immersed in the cooling water, and the loose tub...

AI Technical Summary

Problems solved by technology

After the water in the water tank absorbs the heat released by the loose tube, the temperature will continue to rise, but because the constant temperature water tank forms a water cycle with the cooling water in the water tank through the pipeline, the water circulation is slow

After a period of time, the temperature of the cooling water in the water tank will be inconsistent with the temperature of the water flowing out of the constant temperature water tank, resulting in the temperature of the cooling water not meeting the cooling water temperature of the loose tube, affecting the cooling effect of the loose tube and further affecting the quality of the loose tube stability

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