Patent ID: 9375890
Filing Date: 2016-06-28
CPC Classification: B28B,B29C,B29D

Claim Text:
1. An extrusion-molding device comprising: a flow passage for transporting a paste raw material composition; a screw provided at an upstream side of the flow passage to knead the raw material composition and transport it to a downstream side; a die provided at a downstream side of the flow passage to extrude a molded body composed of the raw material composition therefrom; a resistive tube for connecting the flow passage and the die; and a current plate provided between the screw and the die, wherein the current plate comprises a plurality of through-holes that penetrate from an upstream end side to a downstream end side and that have spot-faced holes with rectangular cross-sections on upstream ends so that each of the through-holes has a rectangular upstream end opening, a spot-faced hole, a straight-tube section with a substantially circular cross-section, and a substantially circular downstream end opening, and the opening of the through-hole on the upstream end side has a larger open area than the opening on the downstream end side.