US 12,257,753 B2
Ejecting apparatus of injection molding mold
Weonseok Yang, Busan (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 Mar. 29, 2023, as Appl. No. 18/192,443.
Claims priority of application No. 10-2022-0098503 (KR), filed on Aug. 8, 2022.
Prior Publication US 2024/0042662 A1, Feb. 8, 2024
Int. Cl. B29C 45/40 (2006.01)
CPC B29C 45/4005 (2013.01) [B29C 2045/4057 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An ejecting apparatus for ejecting a molded product from an injection molding mold, comprising:
an ejecting plate on a lower die of the injection molding, the ejecting plate configured to be movable in a vertical direction;
at least one main ejecting block coupled to a fixed core on the lower die, the at least one main ejecting block configured to be movable in the vertical direction and connected to the ejecting plate;
a sub-ejecting block coupled to the at least one main ejecting block, the sub-ejecting block configured to be movable in the vertical direction; and
an operating force applier coupled to the at least one main ejecting block and configured to apply operational force to the sub-ejecting block through at least one movable core slidably coupled to the fixed core and the ejecting plate,
wherein the ejecting plate comprises a guide member to which at least one support rod connected to the at least one movable core is slidably coupled,
wherein the at least one support rod comprises a slide portion slidably coupled to the guide member such that the at least one movable core is slidably movable along a guide rail installed inclined on the fixed core,
wherein the at least one movable core is slidably coupled to the guide rail through a rail groove, and configured to move along an inclined surface formed on the at least one main ejecting block,
wherein the operating force applier comprises a hinged block hinge-coupled to the at least one main ejecting block, the hinged block configured to swing by striking of the at least one movable core, the hinged block being in sliding contact with the sub-ejecting block,
wherein the hinged block comprises a lever portion configured to be struck by a striking portion formed in the at least one movable core, and
wherein, by an upward operation of the ejecting plate, the at least one movable core slides along the guide rail, horizontally relative to the at least one main ejecting block, to become in contact with the hinged block, and then the hinged block is rotated by the at least one movable core so that the sub-ejecting block is operated upward to eject the molded product from the injection molding mold.