Pipe Inner Surface Polishing Device with Segmented Shaft
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Solution Overview
Problem
Conventional polishing devices for pipe interiors face issues such as scratches, poor polishing quality, thermal deformation, and the need for separate cleaning and inspection processes, which limit their effectiveness and efficiency, especially for longer pipes.
Innovation Solution
A comprehensive polishing device with integrated units for polishing, cleaning, drying, and inspection, featuring a base plate with a polishing unit that includes a support member, polishing member with abrasive materials, a cleaning unit for fluid spraying, a drying unit for high-temperature air, and an inspection unit with a photographing member, all controlled by a unified control unit to ensure efficient and accurate processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a round bar-shaped transmission shaft is used to transmit driving force for long pipes, then the polishing device can reach longer pipes, but vibration of the abrasive material increases causing scratches on the inner surface
Solution Approach 1:
The transmission shaft is divided into multiple sections with intermediate support bearings positioned along its length. This segmentation reduces the span between supports, minimizing vibration and maintaining polishing precision on long pipes exceeding 6 meters in length.
2Productivity
If polishing is performed intermittently from both ends of long pipes, then the entire pipe can be polished, but unpolished areas and poor roughness areas are formed in the central part
Solution Approach 1:
The polishing device enables continuous polishing action throughout the entire pipe length by maintaining stable abrasive material contact through improved transmission shaft support. This eliminates the intermittent polishing process that caused unpolished areas and roughness variations in the central region.
3Productivity
If abrasive material rotates at high speed for efficient polishing, then polishing effectiveness improves, but thermal deformation occurs on the inner surface of the pipe
Solution Approach 1:
A cooling medium is introduced as an intermediary between the high-speed rotating abrasive material and the pipe inner surface. This cooling medium absorbs frictional heat generated during polishing, preventing thermal deformation while maintaining high polishing efficiency.
4Ease of manufacture
If conventional polishing devices are used without integrated cleaning function, then polishing can be performed, but the pipe must be moved to a separate space for cleaning
Solution Approach 1:
The cleaning function is merged with the polishing device by integrating a cleaning unit that includes a spray nozzle. This allows cleaning to be performed in-situ immediately after polishing, eliminating the need to move the pipe to a separate cleaning space and improving operational convenience.
5Ease of operation
If inspection is performed through monitor or endoscope by operator, then polished state can be checked, but accurate judgment varies depending on operator's skill level
Solution Approach 1:
The manual inspection method using monitors or endoscopes is replaced with an automated image processing system. This system uses cameras to capture images of the polished inner surface and automatically analyzes them, eliminating subjectivity and skill-level dependencies to provide consistent, accurate inspection results.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device enables simultaneous polishing, cleaning, and drying of pipe interiors without moving the pipe, reduces vibration-related scratches, prevents thermal deformation, and provides accurate inspection through AI analysis, enhancing workability and quality control.
Implementation Method 1
a drying unit for drying the inner surface of the pipe whose inner surface has been cleaned through the cleaning unit
Implementation Method 2
a polishing member for polishing the inner surface of the pipe; an abrasive material which is combined to the polishing housing to polish the inner surface of the pipe
Implementation Method 3
it is possible to perform cleaning the inside of the pipe at once, and it is possible to accurately inspect even the polished state of the inner surface of the pipe
Data Source
AI summary
A polishing device for the inner surface of a pipe is disclosed. The polishing device for the inner surface of a pipe according to one aspect of the present invention includes a base plate; a polishing unit for polishing the inner surface of the pipe; a cleaning unit for cleaning the inner surface of the pipe whose inner surface has been polished through the polishing unit; a drying unit for drying the inner surface of the pipe whose inner surface has been cleaned through the cleaning unit; and a control unit for controlling the operation of each unit, wherein on the base plate, the polishing unit and the cleaning unit may be disposed, the polishing unit and the drying unit may be disposed, the cleaning unit and the drying unit may be disposed, or the polishing unit, the cleaning unit and the drying unit may be disposed.