An on-line spraying device for coating the inner wall of PVC pipes

By using the enclosed box and synchronous positioning mechanism of the online spraying device, the problems of low spraying efficiency and uneven coating of PVC pipe inner wall coating are solved, achieving efficient and uniform coating coverage, and improving pipe performance and production continuity.

CN224542076UActive Publication Date: 2026-07-24NINGXIA YUAN PIPELINE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGXIA YUAN PIPELINE TECHNOLOGY CO LTD
Filing Date
2025-08-06
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing PVC pipe inner wall coating spraying technology is inefficient, with uneven coating thickness, affecting corrosion resistance and wear resistance. Offline spraying equipment interrupts production continuity and increases costs, while poor positioning mechanism fixation results in uneven coating coverage.

Method used

The online spraying device includes a closed spraying box, an online-operable spraying mechanism, and a precise positioning mechanism. It utilizes synchronously driven positioning components and elastic support parts to ensure continuous spraying of the pipeline on the production line. The fixing effect is enhanced by the jacket and anti-slip sleeve to achieve coating uniformity, and excess paint is recovered through the collection structure.

Benefits of technology

It improves spraying efficiency, ensures coating uniformity, enhances the corrosion resistance and wear resistance of pipelines, reduces material waste, meets the needs of large-scale production, and avoids production interruptions and pipeline damage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224542076U_ABST
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Abstract

The utility model provides an online spraying device of PVC pipeline inner wall coating belongs to PVC pipeline technical field, this online spraying device of PVC pipeline inner wall coating includes spraying box body, and spraying box body one end passes through mounting panel and connects steam cylinder, and steam cylinder telescopic end installs spraying equipment, the side of spraying box body is opened and is processed the hole, is equipped with two limit grooves and three first positioning groove in the hole, is equipped with motor in rear end, two sets of positioning mechanism are separately in limit groove, are used for positioning PVC pipeline left and right parts, and positioning mechanism contains screw rod, the nut of reverse thread connection, first clamp cover, second clamp cover, mobile cover and transmission assembly, and transmission assembly contains gear, toothed belt and elastic part, and the device realizes the on -line spraying of pipeline, guarantees production continuity, promotes the positioning stability and coating uniformity, reduces cost and damage risk, recycles the excess coating, is applicable to large -scale production.
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