公开(公告)号：US11780119B2

公开(公告)日：2023-10-10

申请号：US17271788

申请日：2019-11-25

Applicant: SHANDONG GRAD GROUP CO., LTD.

Inventor： Yanling Shi ,  Junyuan Song ,  Xing Zhang ,  Sen Wang ,  Changxing Wang

IPC: B29C70/50 ,  B29C70/52 ,  B29B11/10 ,  B29B11/12 ,  B29B11/16

CPC classification number: B29B11/10 ,  B29B11/12 ,  B29B11/16 ,  B29C70/504 ,  B29C70/522 ,  B29C70/523 ,  B29C70/526

Abstract: A pressurizing pre-impregnating die head for a fiber reinforced plastic sheet machine is provided. The die head includes a body; at least one group of fiber channels arranged in a longitudinal hole-through manner in a middle of the body, and a fiber yarn conveyed in the fiber channel. The body includes a feeding port and discharging ports, which communicate with each other. The discharging ports are located in outer sides of the fiber channel. Thermoplastic base materials in a molten state are paved on two sides of the fiber yarn. The thermoplastic base materials may be paved on surfaces of the two sides of the fiber yarn when being extruded.