Pipe Positioning Device for Pipe Expander
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Solution Overview
Problem
Conventional pipe expanding methods often result in pipe damage due to unsupported protrusion or insufficient expansion, leading to connection issues with pipe connectors.
Innovation Solution
A pipe positioning device comprising a mold positioning device, a stop member, an axle, and a mold, which includes a connection member with side arms, a stop flange, and a locating space, along with a pivotally coupled stop member and extension arm to ensure precise positioning and expansion of pipes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the pipe protrudes over the front end of the mold in the pipe expander during the expanding operation, then the pipe can be positioned for expansion, but the pipe gets no support and can be biased and damaged
Solution Approach 1:
A stop member is introduced as an intermediary component between the pipe and the mold positioning device. This stop member provides direct support to the pipe at its front end, preventing the pipe from being damaged due to lack of support while protruding for expansion positioning.
Solution Approach 2:
The stop member is positioned in advance before the expanding operation begins. By pre-positioning the stop member to contact the pipe, the system ensures that support is already in place before the pipe protrudes, preventing damage during the positioning phase.
2Reliability
If the pipe is retracted too far in the mold, then the pipe is supported during expansion, but the expanded part of the pipe will be insufficient for positively securing to the pipe connector
Solution Approach 1:
The stop member acts as a mediator that provides controlled support to the pipe. By adjusting the position of the stop member, the system achieves the optimal balance between providing sufficient support during expansion and maintaining adequate protrusion depth for secure connection to the pipe connector.
3Manufacturing precision
If a pipe positioning device is introduced to control pipe position, then positioning accuracy improves, but device complexity increases
Solution Approach 1:
The positioning device is segmented into modular components: a mold positioning device with side arms and a separate stop member. This segmentation allows each component to perform its specific function independently, simplifying the overall design while maintaining positioning accuracy.
Solution Approach 2:
The stop member is designed to be movable rather than fixed, allowing it to be adjusted to different positions along the pipe. This dynamic capability provides positioning accuracy for various pipe sizes and expansion requirements without requiring a completely different device for each case.
Data Source
AI summary
A pipe positioning device for pipe expander includes a mold positioning device defining therein a locating space, an axle located at an outer side of the mold positioning device, and a stop member including a barrel pivotally coupled to and movable along the axle, an extension arm extended from the barrel and a stop plate located at the distal end of the extension arm and turnable about the axle into the locating space to abut at a front end of a mold in the locating space for stopping against a pipe in the mold for expanding, facilitating quick pipe expanding.