Apparatus for filling injection-moulding units

Abstract

Abstract When filling injection-moulding units with non-freeflowing or viscous materials, such as for example glass fibre charged polyester material, screws do not draw in such materials unassisted. In order to permit such materials to be fed continuously to a conveying screw (6) via a feed throat (15), the feed throat (15) is designed as a rotational body having a casing (14) which can rotate about an axis (A) of rotation, the conveying screw (6) being taken through the rotational body in the region of the inner surface of the casing. It is achieved by the invention that the starting material introduced into the feed throat (15) is constantly taken along, due to the static friction between the rotating casing (14) and the conveying screw (6), and consequently material is continuously fed to the conveying screw (6). <IMAGE>

Inventors

• 👤 Franz Meixner

Bibliographic Details