Die casting device
AssigneeAhresty Corporation
InventorShunzo Aoyama
Life of this patent
Estimating the term…
Abstract
The device includes a cavity defined by a fixed die and a movable die; a plunger disposed in a runner connected to the cavity in such a manner as to be movable to and from a gate of the cavity; a molten metal inlet formed midway in the runner; wherein molten metal supplied from the molten metal inlet in the cavity is pressurized by the advance of the plunger. This die device further includes an auxiliary die unit having a runner and a molten metal inlet connected to the cavity, which is disposed in a border of the fixed die; wherein excessive solidified metal is produced in the vicinity of the molten metal inlet of the auxiliary die unit.
Claims15
In a die casting device comprising:
- a cavity defined by a fixed die and a movable die;
- a plunger disposed in a runner connected to said cavity in such a manner as to be movable to and from a gate of said cavity;
- a molten metal inlet formed midway in the runner;
- wherein molten metal supplied from said molten metal inlet in said cavity is pressurized by the advance of said plunger,
- the improvement comprising:
- an auxiliary die unit having a runner and a molten metal inlet connected to said cavity, which is disposed in a border of said fixed die;
- wherein excessive solidified metal is produced in the vicinity of the molten metal inlet of said auxiliary die unit.
A die casting device comprising:
- a fixed die and a movable die which together define a molding cavity having an inlet gate and an inlet runner;
- means forming an auxiliary runner connected to said inlet gate;
- means forming a molten metal inlet midway along a length of said auxiliary runner;
- and
- a plunger movable along said auxiliary runner to pressurize molten metal in said auxiliary runner and force molten metal therein through said inlet gate and into said inlet runner and said molding cavity;
- wherein said means forming said auxiliary runner comprises an auxiliary die unit disposed adjacent said fixed die, said auxiliary die unit comprising a fixed auxiliary die and movable auxiliary die, said movable auxiliary die being movable independently of either of said fixed and movable dies.
Dependencies are inferred from the claim text.