Large-diameter wound pipe and winding method thereof

Abstract

The invention relates to a PVC profile spiral winding technology, namely, a large-diameter wound pipe and a winding method of the large-diameter wound pipe. The large-diameter wound pipe comprises a pipe body 2 formed by winding at least two profile blocks 1 into a whole, wherein a circular rigidity enhancement pier 3 is arranged between the two adjacent profile blocks 1. The winding method of the large-diameter wound pipe includes the steps that a spiral pipe winding machine is placed in a production workshop or on a construction site, one manufactured profile is laid on a conveying belt in front of a feed inlet of the spiral pipe winding machine, and the circular rigidity enhancement pier is placed on the upper plate face of the profile; after the circular rigidity enhancement pier is placed, another profile is laid on the top of the circular rigidity enhancement pier, and the circular rigidity enhancement pier between the two profiles and the two profiles integrally form a blank body of a plate to be wound; the spiral pipe winding machine is started, and the plate to be wound is conveyed into the spiral pipe winding machine to be wound so that the large-diameter wound pipe of the needed size can be formed. Due to the structure and the method, production cost is reduced, and circular rigidity is improved.

Description

technical field [0001] The invention relates to the spiral winding technology of PVC profiles, in particular to a large-diameter winding pipe and a winding method thereof which improve ring rigidity and reduce production cost. Background technique [0002] Large-diameter pipes are widely used in sewage, water diversion, agricultural irrigation, building modules, transportation, communications and other fields. The pipelines in the prior art are nothing more than concrete pipelines, metal pipelines and PVC plastic pipelines. These types of pipelines all need large-scale molds and supporting large-scale production equipment in production, so that the production cost of pipelines remains high. [0003] The multi-functional spiral pipe winding machine announced by the Chinese patent 02276483.6 invented by the inventor solves the above problems. It can directly spirally wind the PVC profile into the required large-caliber PVC spiral winding pipe at the construction and installati...

AI Technical Summary

Problems solved by technology

However, in the existing technology, after the PVC profiles are overlapped [or after the PVC profiles are bonded to each other by glue], they are directly sent to the winding machine for spiral winding to form a pipe. The rigidity of the large-diameter winding pipe ring produced by this method is only 3-4. KN / m 2 , high production cost

[0004] To sum up, the rigidity of the spirally wound pipe ring produced by the existing PVC profile spiral winding technology is only 3-4 KN / m 2 , and need 3 to 5 layers, or more than 5 layers, the production cost is high

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