US 12,303,972 B2
Ejecting device for die casting
Soonhyun Yun, Ulsan (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Jul. 3, 2024, as Appl. No. 18/762,947.
Claims priority of application No. 10-2023-0119484 (KR), filed on Sep. 8, 2023.
Prior Publication US 2025/0083220 A1, Mar. 13, 2025
Int. Cl. B22D 17/20 (2006.01); B22D 17/00 (2006.01)
CPC B22D 17/2084 (2013.01) [B22D 17/002 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An ejecting device for die casting for use in ejecting a molded product molded by a fixed die and a movable die, the ejecting device comprising:
an ejecting plate disposed on a movable holder on which the movable die is mounted to be movable forward and backward in a moving direction of the movable die;
a plurality of main ejecting pins disposed on the ejecting plate in the moving direction of the movable die to penetrate through the movable die; and
a plurality of sub-ejecting units disposed on the ejecting plate to penetrate through the movable die and disposed to eject the molded product in multiple directions within a set ejecting angle range based on an arrangement direction of the main ejecting pins.
 
4. An ejecting device for die casting, the ejecting device being configured to eject a molded product molded by a fixed die and a movable die, the ejecting device comprising:
an ejecting plate disposed on a movable holder on which the movable die is mounted to be movable forward and backward in a moving direction of the movable die;
a plurality of main ejecting pins disposed on the ejecting plate in the moving direction of the movable die to penetrate through the movable die;
at least one first sub-ejecting unit disposed on the ejecting plate to penetrate through the movable die and disposed at a first ejecting angle according to an arrangement direction of the main ejecting pins;
at least one second sub-ejecting unit disposed on the ejecting plate to penetrate through the movable die and disposed to be inclined at a set second ejecting angle based on the arrangement direction of the main ejecting pins; and
a joint module disposed on the ejecting plate and connected to the at least one second sub-ejecting unit so that the at least one second sub-ejecting unit is movable linearly and is swingable according to movement of the ejecting plate.
 
18. A die casting system comprising:
a fixed mold disposed on a base, the fixed mold comprising a fixed holder and a fixed die mounted on the fixed holder;
a movable mold disposed on the base to be movable in a front-rear direction, the movable mold comprising a movable holder and a movable die mounted on the movable holder an ejecting plate disposed on the movable holder to be movable forward and backward in a moving direction of the movable die;
a plurality of main ejecting pins disposed on the ejecting plate in the moving direction of the movable die to penetrate through the movable die through the movable holder; and
a plurality of sub-ejecting units disposed on the ejecting plate to penetrate through the movable die via the movable holder and disposed to eject a molded product in multiple directions within a range of ejecting angles set based on an arrangement direction of the main ejecting pins.