公开(公告)号：US11820062B2

公开(公告)日：2023-11-21

申请号：US17355997

申请日：2021-06-23

Applicant: Shibaura Machine Co., Ltd. ,  HSP Technologies Inc.

Inventor： Akiyoshi Kobayashi ,  Shigeyuki Fujii ,  Takafumi Sameshima ,  Hiroshi Shimizu

IPC: B29C48/51 ,  B29C48/49 ,  B29C48/40 ,  B29B7/42 ,  B29B7/48 ,  B29B7/84 ,  B29C48/57 ,  B29C48/385 ,  B29C48/76 ,  B29B7/74 ,  B29C48/395 ,  B29B7/82 ,  B29C48/00 ,  B29C48/405 ,  B29K33/00 ,  B29K69/00

CPC classification number: B29C48/49 ,  B29B7/422 ,  B29B7/426 ,  B29B7/429 ,  B29B7/483 ,  B29B7/487 ,  B29B7/489 ,  B29B7/7461 ,  B29B7/845 ,  B29C48/385 ,  B29C48/402 ,  B29C48/51 ,  B29C48/57 ,  B29C48/766 ,  B29B7/826 ,  B29C48/023 ,  B29C48/397 ,  B29C48/405 ,  B29K2033/12 ,  B29K2069/00

Abstract: A screw includes a screw main body, a conveyance portion conveying a raw material, and a passage provided in the screw main body. The passage includes a first passage element, a second passage element, and a third passage element. The screw main body has a plurality of cylindrical bodies arranged in an axial direction of the rotating shaft. At least a portion of the conveyance portion is formed on outer peripheral surfaces of the cylindrical bodies adjacent to each other, and the passage is formed in the cylindrical body so as to cross over between the adjacent cylindrical bodies.

公开(公告)号：US11813785B2

公开(公告)日：2023-11-14

申请号：US17386635

申请日：2021-07-28

Applicant: Shibaura Machine Co., Ltd.

Inventor： Akiyoshi Kobayashi ,  Shigeyuki Fujii ,  Takafumi Sameshima

IPC: B29C48/51 ,  B29C48/57 ,  B29C48/67 ,  B29C48/285 ,  B29C48/68 ,  B29C48/25 ,  B29B7/48 ,  B29C48/395 ,  B29C48/80 ,  B29B7/82 ,  B29C48/40 ,  B29C48/63 ,  B29C48/03 ,  B29C48/55 ,  B29C48/53 ,  B29C48/54 ,  B29K101/12 ,  B29K105/00

CPC classification number: B29C48/51 ,  B29B7/483 ,  B29B7/488 ,  B29B7/489 ,  B29C48/2511 ,  B29C48/288 ,  B29C48/57 ,  B29C48/67 ,  B29C48/681 ,  B29B7/823 ,  B29B7/826 ,  B29C48/03 ,  B29C48/397 ,  B29C48/402 ,  B29C48/53 ,  B29C48/54 ,  B29C48/55 ,  B29C48/63 ,  B29C48/832 ,  B29C48/834 ,  B29K2101/12 ,  B29K2105/25

Abstract: A conveyance portion, a barrier portion, and a path are provided at places of a portion of a screw main body in which a kneading portion is provided. In at least one of the places, an entrance is opened to cause raw materials, conveyance of which is limited by a barrier portion to increase pressure on the raw materials, to flow in. The raw materials flowing in from the entrance flow through the path in the opposite direction to a conveyance direction of the conveyance portion. An exit is opened in an outer circumferential surface of the screw main body at a position outside the conveyance portion in which the entrance is opened.