Spiral Teflon Pipe Thermoforming with Rotating Threaded Shaping Bar
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Solution Overview
Problem
Existing methods are inadequate for producing corrosion-resistant spiral pipes used in the chemical industry, as they cannot be manufactured through injection molding or extrusion molding due to chemical properties.
Innovation Solution
A thermoforming pipe-shaping machine comprising a chassis, electric machine control assembly, push unit, rotation unit, clamp unit, heating and forming unit, and clip unit, which work together to shape a Teflon pipe into a spiral form by rotating, pushing, clamping, heating, and pressing the pipe onto a shaping bar with a threaded portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If injection molding or extrusion molding is used to produce spiral pipes, then manufacturing efficiency is improved, but it is impossible to produce spiral pipes with corrosion-resistant chemical properties
Solution Approach 1:
The patent changes the manufacturing method from injection/extrusion molding to thermoforming process, which involves heating the Teflon pipe to a specific temperature range to make it pliable, then shaping it into spiral form. This parameter change (temperature control) enables both corrosion-resistant chemical properties to be maintained and spiral shape to be achieved
Solution Approach 2:
The patent applies preliminary action by first heating and softening the Teflon pipe before shaping. The pipe is pre-heated to make it pliable, then immediately shaped into spiral form while maintaining its corrosion-resistant properties. This preliminary heating action enables the subsequent shaping operation
2Ease of operation
If a simple shaping method is used for Teflon pipes, then processing simplicity is improved, but processing accuracy and diversification of spiral forms are reduced
Solution Approach 1:
The patent segments the shaping process into distinct functional units: heating unit, forming unit, pressing unit, and cooling unit. Each unit performs a specific operation with controlled parameters, enabling both simple operation through automated sequencing and high precision through dedicated functional control
Solution Approach 2:
The patent applies dynamics by making the pressing force and heating temperature adjustable during the process. The pressing unit can apply varying forces at different stages, and the heating unit can adjust temperature based on material response, enabling both ease of operation through automated control and manufacturing precision through parameter optimization
3Stability of the object's composition
If fixed pressing temperature is used in thermoforming, then process stability is improved, but processing accuracy and adaptability to different pipe specifications are reduced
Solution Approach 1:
The patent makes the pressing temperature dynamic and adjustable rather than fixed. The heating unit can vary temperature based on pipe material properties, thickness, and desired spiral configuration, enabling both process stability through controlled heating and manufacturing precision through parameter optimization for different specifications
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
Enhances diversification, convenience, and processing accuracy of shaping Teflon pipes into spiral forms, allowing for progressive adjustments, adjustable pressing temperature, and continuous spiral processing.
Implementation Method 1
the heating and forming unit being operable to carry out a processing operation of heating and pressing on the threaded portion of the shaping bar on which the Teflon pipe to be processed is sleeved
Data Source
AI summary
A thermoforming pipe-shaping machine includes a chassis, an electric machine control assembly beside the chassis, a push unit arranged on the chassis, a rotation unit arranged on the push unit, a clamp unit arranged on the push unit, a heating and forming unit arranged on the chassis, and a clip unit at one end side of the chassis. The rotation unit receives a shaping bar on which a Teflon pipe is sleeved to fit therein. The shaping bar includes one end threaded portion. The rotation unit drives the shaping bar to rotate. The push unit drives the rotation unit to slide on the chassis. The clamp unit clamps the shaping bar carrying the Teflon pipe. The heating and forming unit performs an operation of heating and pressing on the threaded portion of the shaping bar carrying the Teflon pipe to shape the Teflon pipe into a spiral form.