A polishing device for PE rosette pipe cross section and a polishing method thereof

By using the transmission structure and clamping components of the external gear ring, planetary gears and sun gear, the problem of low grinding efficiency of PE plum blossom pipes is solved, and efficient and stable control of pipe surface flatness is achieved.

CN117067008BActive Publication Date: 2026-07-03ANHUI YUFA PLASTIC IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI YUFA PLASTIC IND CO LTD
Filing Date
2023-08-21
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The grinding efficiency of PE pipes in the current technology is low, mainly because the rotation speed of the grinding disc is limited by the maximum speed of the motor, resulting in insufficient grinding efficiency.

Method used

The transmission structure employs an external gear ring, planetary gears, and a sun gear, combined with a clamping assembly and a linear drive unit, to achieve relative rotation between the grinding disc and the PE pipe, increasing grinding efficiency; the clamping assembly is used to hold the PE pipe, ensuring the stability and precision of grinding.

Benefits of technology

The relative rotation increases grinding efficiency, ensures grinding stability and precision, prevents vibration caused by gravity bending, and achieves efficient control of pipeline surface flatness.

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Abstract

This invention discloses a PE pipe cross-section grinding device and method, relating to the field of PE pipe grinding technology. To address the grinding efficiency issue, the device specifically includes a base, a hollow housing fixedly installed on one side of the top of the base, and a limiting end plate driven by a linear drive unit on the other side of the top of the base. A grinding mechanism is driven and engaged within the hollow housing via a drive mechanism. A support and guide mechanism is provided on the side of the limiting end plate near the grinding mechanism. This invention, by setting up a grinding mechanism, utilizes a clamping component on an external gear ring to clamp the PE pipe, and then fixes the grinding disc relative to the sun gear. Combining the transmission characteristics of the external gear ring, planetary gears, and sun gear, the PE pipe rotates in the opposite direction relative to the grinding disc while the grinding disc rotates. This increases the relative rotational speed between the grinding disc and the PE pipe while maintaining a constant output speed from the drive mechanism, thereby increasing grinding efficiency.
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