US 12,441,041 B2
High-speed molding device
Jung Woo Park, Changwon-si (KR); Dong Woen Lee, Changwon-si (KR); Young Soo Chung, Changwon-si (KR); and Hyeon Gweon Cheon, Gimhae-si (KR)
Assigned to HYOSUNG HEAVY INDUSTRIES CORPORATION, Seoul (KR)
Appl. No. 18/569,202
Filed by HYOSUNG HEAVY INDUSTRIES CORPORATION, Seoul (KR)
PCT Filed Nov. 17, 2022, PCT No. PCT/KR2022/018188
§ 371(c)(1), (2) Date Dec. 11, 2023,
PCT Pub. No. WO2023/153592, PCT Pub. Date Aug. 17, 2023.
Claims priority of application No. 10-2022-0019125 (KR), filed on Feb. 14, 2022.
Prior Publication US 2024/0278466 A1, Aug. 22, 2024
Int. Cl. B29C 45/34 (2006.01); B29C 45/14 (2006.01)
CPC B29C 45/34 (2013.01) [B29C 45/14065 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A high-speed molding device comprising: a first mold and a second mold which are coupled and separated from each other by forming a cavity; and a vent unit provided through a communication hole communicating with the cavity and the outside, and having a first vent flow path through which gas and resin flow and a second vent flow path having a flow cross-sectional area smaller than that of the first vent flow path and through which gas flows, wherein the vent unit comprises a first vent body having the first vent flow path formed therein and a second vent body detachably coupled to the first vent body, and a second vent flow path communicating with the first vent flow path is formed between the first vent body and the second vent body, wherein first vent body is fastened to a fastening piece provided in an insert part inserted into the cavity, wherein the first vent flow path of the first vent body communicates with the cavity through a fastening hole formed in the fastening piece, wherein the second vent flow path is formed to have a height less than the width, such that the cross-section thereof is rectangular, wherein a first concavo-convex portion is formed in the first vent body to couple the first vent body and the second vent body, and a second concavo-convex portion is formed on the second vent body to couple to the first concavo-convex portion, and wherein an installation space in which the vent unit is installed is formed on at least one of the first mold and the second mold, wherein a fixing plate is installed at an entrance of the installation space, and a press for pressing the second vent body to the first vent body is installed through the fixing plate.