Circulating cooling pipe former

Abstract

The invention discloses a circulating cooling pipe former. The circulating cooling pipe former comprises a pipe former body, a water storage ring is arranged at one end of the pipe former body, an annular water storage groove is formed in the water storage ring, at least one water inlet communicated with the water storage groove is formed in the peripheral wall of the water storage ring, a spiral cooling water groove extending to the other end from one end of the water storage groove is formed in the inner wall of the water storage ring, and communication holes are formed between the spiral cooling water groove and the water storage groove at intervals; the spiral cooling water groove is formed in the inner wall of the water storage ring, and therefore the cooling water circularly flows along with the spiral cooling water groove, it is ensured that the temperature of the cooling water is within the set range, and the cooling effect can be effectively improved; meanwhile, the communication holes are arranged between the water storage groove and the spiral cooling water groove at intervals, exchange of the cooling water between the water storage groove and the spiral cooling water groove is facilitated, the phenomenon that due to long-time contact of the cooling water in the spiral cooling water groove and a pipe, the temperature is too high is avoided, and the cooling effect is further improved.

Description

technical field [0001] The invention relates to a pipe calibrating sleeve, in particular to a pipe calibrating sleeve capable of circulating cooling. Background technique [0002] At present, vacuum sizing sleeves are mostly used in the production of plastic pipes. The sizing sleeves sold on the market are generally copper sleeves with a relatively simple structure. After the tube embryo enters the sizing device, it is cooled by spraying or soaking in a vacuum box. Traditional sizing casing blanks are often not cooled sufficiently and uniformly, which seriously affects the appearance quality and production efficiency of the pipe. There are many unreasonable points in the structural design and cooling system of the existing sizing sleeves on the market, resulting in poor cooling effect, slow sizing speed, high manufacturing cost and so on. [0003] Some existing sizing sleeves are provided with an annular cooling water tank on the inner wall, and the pipe is cooled by the wa...

AI Technical Summary

Problems solved by technology

Traditional sizing casing blanks are often not cooled sufficiently and uniformly, which seriously affects the appearance quality and production efficiency of the pipe

There are many unreasonable points in the existing sizing sleeve structure design and cooling system on the market, resulting in poor cooling effect, slow sizing speed, high manufacturing cost, etc.

[0003] Some existing sizing sleeves are provided with an annular cooling water tank on the inner wall, and the pipe is cooled by the water in the tank. Although the cooling effect is improved to a certain extent, the temperature of the cold water gradually rises because the cooling water cannot circulate. High, its cooling effect is greatly reduced

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