Pipe withdrawal device for assisting heat exchange tube withdrawal from a fin machine

By designing a tube-removing device consisting of clamping rollers and a power unit, the problem of removing the bare tube section at the tail of the heat exchange tube from the finning machine was solved, achieving smooth removal of the heat exchange tube and formation of the bare tube section, thus avoiding deformation of the heat exchange tube.

CN118162558BActive Publication Date: 2026-07-21YANTAI HENGHUI COPPER IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
YANTAI HENGHUI COPPER IND CO LTD
Filing Date
2024-04-03
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the process of processing high-efficiency heat exchange tubes, the bare tube section at the tail end of the heat exchange tube needs to be completely removed from the finning machine with the assistance of external force, which is difficult to achieve effectively with existing technology.

Method used

Design a tube removal device, including a pair of clamping rollers and a power component, to assist the removal of heat exchange tubes through clamping and rotation actions. The clamping roller pair consists of a first clamping roller and a second clamping roller. The power component drives the clamping roller pair to switch between clamping and releasing states through a transmission component, and assists the removal of heat exchange tubes through friction.

Benefits of technology

It effectively assists heat exchange tubes of various diameters in exiting the finning machine, ensuring the formation of bare tube sections and preventing deformation of the heat exchange tubes during the exit process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN118162558B_ABST
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Abstract

The application relates to a pipe withdrawing device for assisting heat exchange pipes in exiting from a fin machine, the pipe withdrawing device comprising: a pair of clamping rollers, which comprises a first clamping roller capable of rotating around a first axis and a second clamping roller capable of rotating around a second axis parallel to the first axis, and has a clamping state and a releasing state; wherein in the clamping state, the first clamping roller and the second clamping roller are relatively close to each other to clamp the heat exchange pipe from two radial sides of the heat exchange pipe respectively; in the releasing state, the first clamping roller and the second clamping roller are relatively far away from each other to form a space for the heat exchange pipe to pass through; a first power member connected to the pair of clamping rollers via a first transmission assembly and configured to drive the pair of clamping rollers to switch between the clamping state and the releasing state; and a second power member connected to the pair of clamping rollers via a second transmission assembly and configured to drive at least one of the first clamping roller and the second clamping roller to rotate when the pair of clamping rollers is in the clamping state.
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