Extruder Die Block Cooling With Fixed Gas Supply
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Solution Overview
Problem
Conventional extrusion press machines face challenges in maintaining die temperature control, leading to reduced quality of extruded aluminum products due to temperature rise from friction, and existing cooling mechanisms complicate the piping system when moved between operation and changing positions.
Innovation Solution
A die block device with a gas supply system that includes gas channels and a supply passage for cooling gas, allowing for simple and efficient temperature control by supplying cooling gas when needed, with a temperature sensor and heater integrated into the block body, and a fixed gas supply portion that remains stationary, independent of the die block's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a cooling mechanism is arranged in the die block to suppress the rise in temperature of the die, then the temperature control of the die is improved, but the piping of the cooling mechanism becomes complicated due to the movement of the die block between operation and changing positions
Solution Approach 1:
The gas supply portion is extracted from the moving die block and positioned separately in a fixed location. Only the gas channels within the die block move with the die, while the complex piping components (supply passage, valve, gas supply source) remain stationary, simplifying the overall piping system.
Solution Approach 2:
The cooling system is segmented into two parts: the gas channels embedded in the die block that move with it, and the fixed gas supply portion that remains stationary. This segmentation allows the moving and stationary components to be independently optimized.
2Adaptability or versatility
If the die block is moved between operation position and changing position, then the extrusion process can be performed and die changing can be done, but the cooling mechanism piping becomes complicated if it needs to follow the movement
Solution Approach 1:
The gas supply portion is extracted from the moving die block and positioned separately in a fixed location. Only the gas channels within the die block move with the die, while the complex piping components (supply passage, valve, gas supply source) remain stationary, simplifying the overall piping system.
3Manufacturing precision
If heating means are arranged in the die block to maintain die temperature, then the dimensional accuracy and shape of extruded products are improved, but the die temperature may rise excessively during continuous extrusion due to friction
Solution Approach 1:
A temperature sensor detects the die temperature and provides feedback to the control unit, which automatically adjusts the heating and cooling operations to maintain the die temperature within the desired range, preventing both excessive heating and cooling.
Solution Approach 2:
The cooling gas supply is controlled to operate periodically or as needed based on temperature conditions, rather than continuously, allowing the heating function to work effectively while providing cooling only when temperature rise occurs during continuous extrusion.
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 solution effectively maintains the die temperature, preventing defects in extruded products by efficiently cooling the die during operation and simplifying the cooling mechanism's piping, ensuring consistent product quality without the need for complex movement of cooling components.
Implementation Method 1
a gas channel having a supply port for the cooling gas and an exhaust port that extends from the supply port through the block body and opens into the support surface
Implementation Method 2
a temperature sensor and heater integrated into the block body
Data Source
AI summary
A die block device in an extruder including a cooling mechanism of a simple structure reciprocable between an operation position and a changing position. A die block portion configured to reciprocate between an operation position for extrusion and a changing position for die changing; and a gas supply portion configured to supply a cooling gas toward the die block portion. The die block portion includes a block body having a support surface that supports the die, and a gas channel having a supply port for the cooling gas and an exhaust port that extends from the supply port through the block body and opens into the support surface.