Die-Casting Valve Device Shortening Gas Drainage Path
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In vacuum die-casting machines, the long gas drainage path between the mold cavity and the valve device increases the amount of molten metal consumed and deteriorates the efficiency of processing solidified metal, as well as potentially deforming the metal mold due to the distance and heat transfer issues.
Innovation Solution
A valve device for gas drainage is mounted directly to the metal mold, with a main body that includes an exhaust hole, a valve element, a cylinder with a piston, and an electromagnetic selector valve, positioned to shorten the gas drainage path and reduce the distance from the cavity to the valve device, thereby minimizing molten metal flow and improving processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the valve device is installed on the upper end of the stationary mold far away from the cavity, then the valve device can be easily installed and accessed, but the gas drainage path becomes long which increases molten metal consumption and deteriorates processing efficiency
Solution Approach 1:
The valve device is repositioned from a vertical arrangement on the upper end of the mold to a horizontal arrangement within the mold cavity area. This dimensional change allows the valve device to be located closer to the cavity while maintaining installation accessibility through the side wall of the mold, thereby shortening the gas drainage path without sacrificing ease of installation.
Solution Approach 2:
A guide tube is introduced as an intermediary component to redirect the compressed air flow. The guide tube extends from the valve device through the side wall of the mold to the upper end, allowing the valve device to be positioned optimally within the mold while still enabling easy access for installation and maintenance from the outside.
2Ease of operation
If the gas drainage path is long, then the valve device can be installed with easier access, but the amount of molten metal flowing in the gas drainage path becomes large increasing consumption
Solution Approach 1:
The valve device is repositioned from a vertical arrangement on the upper end of the mold to a horizontal arrangement within the mold cavity area. This dimensional change allows the valve device to be located closer to the cavity while maintaining installation accessibility through the side wall of the mold, thereby shortening the gas drainage path without sacrificing ease of installation.
Solution Approach 2:
A guide tube is introduced as an intermediary component to redirect the compressed air flow. The guide tube extends from the valve device through the side wall of the mold to the upper end, allowing the valve device to be positioned optimally within the mold while still enabling easy access for installation and maintenance from the outside.
3Ease of operation
If the gas drainage path is long, then the valve device can be installed with easier access, but the efficiency of processing the molten metal that has solidified in the gas drainage path deteriorates
Solution Approach 1:
The valve device is repositioned from a vertical arrangement on the upper end of the mold to a horizontal arrangement within the mold cavity area. This dimensional change allows the valve device to be located closer to the cavity while maintaining installation accessibility through the side wall of the mold, thereby shortening the gas drainage path without sacrificing ease of installation.
Solution Approach 2:
A guide tube is introduced as an intermediary component to redirect the compressed air flow. The guide tube extends from the valve device through the side wall of the mold to the upper end, allowing the valve device to be positioned optimally within the mold while still enabling easy access for installation and maintenance from the outside.
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 shortened gas drainage path reduces molten metal consumption and enhances processing efficiency, while also protecting the valve device from heat and preventing mold deformation by positioning the electromagnetic selector valve away from direct heat transfer.
Implementation Method 1
an electromagnetic selector valve for selectively switching a supply route of a driving fluid supplied from a fluid supply source of a die-casting machine to the cylinder either to a front chamber of the cylinder or to a rear chamber of the cylinder
Implementation Method 2
The cylinder is partitioned into a front chamber and rear chamber by the piston. When the compressed air is fed into the front chamber, the valve element moves backward and the gas drainage path is blocked, and when the compressed air is fed to the rear chamber, the valve element moves forward and the gas drainage path is communicated.
Implementation Method 3
a valve element capable of opening and closing the exhaust hole
Data Source
AI summary
A valve device has a main body in which an exhaust hole configuring a part of the gas drainage path is formed; a valve element capable of opening and closing the exhaust hole; a cylinder housing a piston coupled to the valve element; and an electromagnetic selector valve for selectively switching a supply route of a driving fluid supplied from a fluid supply source of a die-casting machine to the cylinder either to a front chamber of the cylinder or to a rear chamber of the cylinder. The main body includes a front face configuring a part of a parting face and a fitting portion that tightly adheres to a wall face of a housing hole. The electromagnetic selector valve is positioned on a rear side of the main body, and positioned inwardly of a contour line of the man body formed by the fitting portion.