公开(公告)号：US4215978A

公开(公告)日：1980-08-05

申请号：US924657

申请日：1978-07-14

Applicant: Seizo Takayama ,  Kiyoshi Hashimoto

Inventor： Seizo Takayama ,  Kiyoshi Hashimoto

IPC: B29C47/60 ,  B29F3/02

CPC classification number: B29C47/6081 ,  B29C47/60 ,  B29C47/0009

Abstract: In a resin moulding screw provided with helical flight and valley, the bottom surface of valley is divided into a plurality of portions along a dividing line, and the divided portions are alternately displaced in the radial direction to form wavy contours. Barriers are provided to cross the dividing line to form dams which prevent intercommunication of the valleys at the bottom of the screw groove to prevent decrease of the thrust pressure along the flight for efficiently blending and melting solid and molten resins.

Abstract translation: 在具有螺旋状飞行和谷部的树脂模制螺钉中，谷的底面沿着分割线被分成多个部分，并且分割的部分在径向方向上交替位移以形成波状轮廓。 隔板设置成跨越分界线以形成防止螺纹槽底部相互沟通的坝体，以防止降低沿着飞行的推力，以有效地共混和熔化固体和熔融树脂。