Precision high-efficiency tubing sizing sleeve

Abstract

The invention relates to a precision high-efficiency tubing sizing sleeve. The precision high-efficiency tubing sizing sleeve comprises a water distribution base, a sizing sleeve and a flange connecting the water distribution base and the sizing sleeve, the water distribution base is provided with water inlet and outlet connectors for cooling water feeding and discharge, the cooling water enters into the water distribution base by the water inlet connector, a water ring is formed in the water distribution base, the sizing sleeve is a single-wall metal tube, the inner side of the front tube wall section is provided with a helical groove and is densely covered through holes, and the rear tube wall section is provided with a straight trough. Compared with the existing tubing sizing sleeve, the precision high-efficiency tubing sizing sleeve is suitable for pipe diameters phi of 16-1000, is suitable for production of tubes prepared from different plastic materials such as PVC and other materials, does not produce pipes with crinkles and nonuniform tube wall thickness in tube production, prevents adhesion of the tube blank to the tubing sizing sleeve, and realizes smooth outer tube walls and uniform wall thickness. The whole cooling sizing system is stable and reliable and guarantees high-rate high-precision tube production.

Description

technical field [0001] The invention relates to a plastic pipe production device assembly, in particular to a precise and efficient pipe sizing sleeve. 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 relatively simple structures. cool down. There are various design schemes for the sizing sleeve, but the design principle is mainly to ensure that the tube blank can be uniformly shaped and cooled. Blockage, the surface of the produced pipe has ripples, pits, and cracks, which seriously affect the appearance quality of the pipe. [0003] The Chinese patent application number 201220217315.8 discloses a PVC small-diameter pipe sizing die, which is used to solve the problems of slow cooling speed of the sizing sleeve, difficulty in forming the pipe, and difficulty in forming precise sizing. It consists of a connecting flange and a cooling ja...

AI Technical Summary

Problems solved by technology

There are various design schemes of the sizing sleeve, but the design principle is mainly to ensure that the tube blank can be uniformly shaped and cooled. Blockage, the surface of the produced pipe has ripples, pits, and cracks, which seriously affect the appearance quality of the pipe

[0003] The Chinese patent application number 201220217315.8 discloses a PVC small-diameter pipe sizing die, which is used to solve the problems of slow cooling speed of the sizing sleeve, difficulty in forming the pipe, and difficulty in forming precise sizing

It consists of a connecting flange and a cooling jacket. The cooling jacket is fixed in the center hole of the connecting flange. There is a water ring on the connecting flange. The water ring is respectively connected to the water inlet and outlet on both sides of the connecting flange. There is a ring groove on the cooling jacket, the ring groove corresponds to the position of the water ring, and there is a water spray hole connected to the water ring on the ring groove, but the sizing die can only process PVC pipes with a fixed size, and its application range is narrow

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