Manual Clamshell Mold Tool for Pipe Flaring
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Solution Overview
Problem
Existing mold tools for pipes are cumbersome, require heating, and result in surface staining or brittleness, making them difficult to use in confined spaces and prone to uneven flares.
Innovation Solution
A mold tool with a 'clamshell turret' mechanism featuring a base, die assembly, tightening element, and shaping caps, allowing for various diameters and flare types without heating, and utilizing magnetic members for assembly ease, enabling secure and adjustable flaring operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional hydraulic mold tools are used, then flaring function is achieved, but the equipment becomes bulky, heavy, and difficult to carry into confined spaces
Solution Approach 1:
The mold tool is divided into multiple independent components: a base unit, interchangeable die assemblies, shaping caps, and a manual operating lever. Each component is compact and can be separately handled, allowing the tool to be easily carried into confined spaces while maintaining full flaring functionality when assembled.
Solution Approach 2:
The hydraulic system is completely removed from the tool design. Instead of using hydraulic pressure, the tool employs direct manual mechanical force transmitted through the operating lever to the die assembly, eliminating the need for bulky hydraulic pumps, hoses, and control systems.
2Ease of manufacture
If pipe heating is performed before flaring, then shaping becomes easier, but the pipe surface becomes blackened or stained requiring additional cleaning
Solution Approach 1:
The heating process is completely removed from the flaring procedure. The die assembly and shaping caps are designed to cut and shape the pipe end directly at room temperature through precise mechanical action, eliminating thermal effects that cause surface discoloration and the need for subsequent cleaning.
Solution Approach 2:
Instead of softening the pipe through heating to enable shaping, the tool uses sharp cutting edges and precise mechanical geometry to shape the pipe end through direct cold cutting and forming, reversing the traditional approach of using heat to facilitate shaping.
3Shape
If pipe expansion and cooling is performed, then flaring is achieved, but the end becomes brittle or uneven
Solution Approach 1:
Instead of expanding the pipe end through heating and then cooling it (which causes brittleness), the tool uses direct mechanical cutting and forming at room temperature. The die assembly cuts the pipe end to the desired flare shape through controlled mechanical removal and shaping, avoiding thermal cycles that compromise material strength.
Solution Approach 2:
The flaring process is divided into distinct mechanical steps: cutting the pipe end to length, forming the flare angle, and finishing the surface. Each step is performed separately by specific components of the die assembly, ensuring precise control over the final shape without introducing thermal stress or brittleness.
4Adaptability or versatility
If a single mold tool design is used, then simplicity is maintained, but it cannot accommodate tubes with different diameters
Solution Approach 1:
The base unit is designed as a universal platform that can accommodate multiple die assemblies and shaping caps through standardized mounting interfaces. Each die assembly is configured for specific tube diameter ranges, allowing the same base tool to handle various pipe sizes by simply changing the die assembly, maintaining versatility without requiring multiple complete tool sets.
Solution Approach 2:
The tool incorporates adjustable components including the operating lever position and die assembly selection, allowing the tool to adapt its configuration to match different tube diameters. This dynamic adjustability enables a single tool design to serve multiple functions across different pipe sizes.
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 tool allows for easy, portable, and precise flaring of pipes with different diameters, reducing surface damage and brittleness, and enabling quick repair in confined spaces.
Implementation Method 1
The base is provided with a through hole for receiving therein a first magnetic member... The tightening element is provided at one end with a threaded portion that defines therein a recess for receiving a second magnetic member... The threaded element has... a second threaded portion is provided at its free end with a mating protrusion that defines therein a recess for receiving a third magnetic element
Data Source
AI summary
A mold tool generally includes a base, a die assembly, a tightening element, a threaded element, and at least one shaping cap. The base defines a cutout, a first threaded hole opposite to the cutout, and a second threaded hole. The die assembly, composed of a first module and a second module, can be inserted into a receiving space of the base. The tightening element can be screwed into the second threaded hole of the base to fix the die assembly in place. The threaded element can be screwed into the first threaded hole of the base. The shaping cap can be fitted at one end of the threaded element. The die assembly defines channels of various diameters each for holding a tube of a specific diameter. The shaping cap can urge one end of a tube held in the die assembly to form a specific type of flare.