Multi-Channel Plastic Pipe With Integral Guide Elements
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Solution Overview
Problem
The production of plastic pipes with multiple internal chambers is complex and limited in design freedom, requiring separate fastening means and multiple manual steps for the installation of partition walls.
Innovation Solution
A plastic pipe design featuring integrally formed guide elements on the inner side, which support a separating element to divide the pipe into channels, combined with an apparatus for continuous production using half-molds and an injection head for extruding both outer and inner pipes, allowing for simplified and efficient manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate fastening means are attached to the inside of the pipe for the arrangement and fastening of the partition wall, then the partition wall can be secured in place, but the device complexity and production complexity increase
Solution Approach 1:
The guide element is integrally formed with the pipe inner side as a single component, merging the pipe structure and the guide element into one piece. This eliminates the need for separate fastening means and reduces production steps, directly resolving the contradiction between reliable partition wall fastening and production complexity
Solution Approach 2:
The guide element is pre-formed as an integral part of the pipe during the pipe manufacturing process itself. This preliminary action ensures the guide element is already in position and ready to receive the partition wall, eliminating subsequent fastening operations and reducing production complexity
2Reliability
If production is carried out in several steps and by means of additional manual labor, then the partition wall can be properly installed, but the productivity decreases and manufacturing complexity increases
Solution Approach 1:
The pipe and guide element are manufactured as a single integrated component in one continuous process, eliminating multiple production steps and manual assembly operations. This merging approach maintains reliable partition wall installation while significantly improving productivity
Solution Approach 2:
The guide element is self-formed during pipe manufacturing through the molding process, requiring no additional manual intervention for its creation or installation. The structure is self-sufficient and automatically ready to receive the partition wall, enhancing both reliability and productivity
3Reliability
If separate fastening means are used for the partition wall, then the partition wall can be secured, but the design freedom of the plastic pipe is limited
Solution Approach 1:
The integral formation of the guide element with the pipe inner side allows the guide element's geometry to be freely adapted during pipe molding. This merging approach provides unlimited design freedom for the guide element shape while maintaining reliable partition wall securing through the molded-in structure
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
This approach simplifies the production of plastic pipes with multiple channels by enabling the reliable and precise integration of separating elements, enhancing design freedom and reducing manual labor, while enabling continuous production of pipe base bodies with corrugated or ribbed outer sides.
Implementation Method 1
The injection head has an outer nozzle for extruding an outer pipe, an inner nozzle arranged downstream in the conveying direction for extruding an inner pipe
Implementation Method 2
a cooling jacket held by the supporting pipe with an integrated cooling channel
Data Source
AI summary
A plastic pipe is formed with elevations oriented to be perpendicular to a pipe longitudinal axis on a pipe outer side, with a pipe inner side on which at least one guide element oriented to be parallel to the pipe longitudinal axis is integrally formed, and with a separating element held on the at least one guide element.