Molding machine
OwnerEugene F. Schultzinventor
Life of this patent
Estimating the term…
Abstract
A static pour, gravity feed permanent mold machine for molding a casting from molten metal heated in a furnace, consisting of a chassis, a die holder adapted to receive a reusable die, a reusable open-face die for insertion in the die holder, a vertically-oriented die ejection system for ejecting the casting from the die, an ejector pin lubrication system, horizontal mobile gating blocks which together form a gating system when brought together over the die opening, a horizontally-mounted degater for severing the gating system from the casting while the gating system and casting are still hot, a mobile casting receiver for removing the casting from machine, and a mobile robot arm for dipping molten metal from the furnace and for returning the gating system to the furnace for remelting.
Claims19
A static pour, gravity feed permanent mold machine for molding a casting from molten metal heated in a furnace, comprising:
- a chassis,
- means for holding a removable, reusable die,
- a removable, reusable die,
- casting ejection means for automatically ejecting the casting from said die,
- mobile gating means for automatically forming a gating system adapted for carrying the molten metal into said die, said gating system having a narrowed opening for engaging the casting,
- automatic degating means for severing said gating system from the casting while said gating system and the casting are still hot,
- automatic casting receiver means for removing the casting from the mold machine, and
- means for automatically transporting molten metal to the mold machine and automatically returning said gating system back to the furnace for re-heating.
A static pour, gravity feed permanent mold machine for molding a casting from molten metal heated in a furnace, comprising:
- a chassis,
- a die holder mounted on said chassis, said die holder adapted for receiving and holding a removable, reusable die,
- a removable, reusable die adapted for insertion in said die holder,
- casting ejection system mounted on said die and said casting ejection system having a plurality of ejector pins adapted for ejecting the casting from the die,
- an ejector pin lubrication system mounted on said die,
- a plurality of mobile gating blocks mounted on said chassis, said gating blocks mating to form a gating system adapted for carrying the molten metal into said die, said gating system having a narrowed opening for engaging the casting,
- a mobile degater mounted on said chassis and adapted for severing said gating system from the casting,
- a mobile casting receiver for removing the casting from the mold machine, and
- a mobile robot arm comprising a ladle adapted for transporting molten metal to the mold machine and a
- carrier for transporting said gating system back to the furnace for reheating.
A method of static pour, gravity feed permanent mold casting comprising the steps of:
- inserting a reusable, removable die into a die holder,
- forming a gating system above the die by bringing together separate gating blocks, each of which forms one-half of a riser cavity and one-half of a sprue cavity,
- ladling molten metal from a furnace,
- pouring molten metal into the die through the sprue cavity, filling the casting and the riser cavity,
- allowing the molten metal to cool to a plastic state,
- separating the gating blocks to allow access to the gating system,
- severing the gating system from the casting while the gating system and the casting are still hot,
- returning the gating system to the furnace for remelting while the gating system is still hot,
- ejecting the casting from the die, and
- removing the casting from the mold machine.
Dependencies are inferred from the claim text.