Pouring Machine Ladle Tilt Control for Molten Metal Stability
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Solution Overview
Problem
Existing pouring machines struggle to maintain a consistent pouring rate and level of molten metal into molds, leading to issues like leaks, overflows, and misruns, which affect productivity and product quality.
Innovation Solution
A pouring machine equipped with a traveling bogie, mechanisms for moving and tilting the ladle, a weight detector, and a surface-of-melt detector, controlled by a system that adjusts the ladle's tilt angle based on real-time weight and surface level data to maintain a constant pouring rate and prevent leaks or overflows.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the pouring rate is increased to enhance productivity, then the pouring time is shortened, but the molten metal may leak, overflow, or have a short run
Solution Approach 1:
The system uses a camera to detect the level of molten metal in the pouring cup in real-time and feeds this information back to the control unit. The control unit adjusts the ladle tilting angle based on the detected level to maintain a stable pouring rate, preventing overflow or short run while enabling faster pouring.
Solution Approach 2:
The ladle tilting angle is dynamically adjusted during the pouring process based on real-time detection of molten metal level. The control unit continuously modifies the tilting angle to maintain optimal pouring conditions, enabling both high speed and high reliability.
2Reliability
If the pouring rate is reduced to prevent overflow, then the pouring stability is improved, but the pouring time becomes longer
Solution Approach 1:
Real-time detection of molten metal level provides continuous feedback to the control unit, which adjusts the pouring rate dynamically. This allows the system to pour at higher speeds while maintaining stability by preventing overflow through active control.
Solution Approach 2:
The manual operation based on operator experience is replaced with an automated optical detection and control system. The camera-based level detection and automated tilting control enable more precise and responsive pouring rate management than manual methods.
3Ease of operation
If the pouring operation is controlled manually by a skilled operator, then the pouring experience and judgment are applied, but the pouring rate control is not precise and consistent
Solution Approach 1:
The manual visual judgment and manual tilting control are replaced with an automated optical detection system and motorized tilting mechanism. This substitution provides precise and consistent pouring rate control while maintaining operational simplicity through automated decision-making.
Solution Approach 2:
The system performs self-adjustment of the pouring rate through automated detection and control. The control unit automatically adjusts the ladle tilting angle based on detected molten metal level, eliminating the need for continuous manual intervention while maintaining high precision.
4Device complexity
If the level of molten metal in the pouring cup is not maintained, then the pouring process is simpler, but the temperature of molten metal decreases or the shapes of molds change causing misrun
Solution Approach 1:
The camera-based level detection provides real-time feedback on molten metal level in the pouring cup. This feedback enables the control unit to adjust the pouring rate to maintain optimal level, preventing temperature loss and mold shape changes that would cause misrun.
Solution Approach 2:
Manual level estimation is replaced with automated optical detection, providing precise and continuous monitoring of molten metal level. This substitution ensures accurate level maintenance while keeping the operational process simple through automation.
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 system ensures a proper pouring time and rate, preventing leaks, overflows, and misruns, thereby enhancing productivity and maintaining the quality of cast products.
Implementation Method 1
a weight detector (50) that detects a weight of the molten metal in the ladle (2)
Implementation Method 2
a surface-of-melt detector (60) that detects a level of a surface of melt in a pouring cup (110)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A pouring machine is provided to constantly maintain the level of the surface of melt without a leak, or the like, to maintain a necessary and sufficient pouring rate. The pouring machine (1) that pours molten metal from a container into molds in a line comprises a bogie (10) that travels along the molds; a mechanism (20) for moving the container back and forth that moves the container perpendicularly to the direction that the bogie travels; a mechanism (40) for tilting the container that tilts the container; a weight detector (50) that detects the weight of molten metal in the container; a surface-of-melt detector (60) that detects the level at a pouring cup (110) of a mold (100); and a controller (70) that controls the angle of the tilt of the container by using the detected level and the detected weight.