DEVICE FOR PREPARATION OF THE POLYMERIC MATERIAL FOR REPROCESSING Russian patent published in 2007 - IPC B29B13/10 B29C47/10 

FIELD: chemical industry; devices for reprocessing of the polymeric material.

SUBSTANCE: the invention is pertaining to the device used for preparation of the polymeric material for reprocessing. The device contains the tank with the upper charging opening for the material. In the tank around its vertical axis there is at least one rotating mixing and-or grinding gear. This gear routes the treated material to the located in the lower part of the tank discharge opening, to which at least one body of the feed screw adjoins. The lateral wall of the feeding opening, along which the gear moves down, limits the dilation passing continuously in direction to the axis of the feed screw. The device is supplied with at least one additional feed screw. At that the dilation extends, if to look in the direction of the axis of the body of two or more feed screws, along the part of the periphery of the turns of the neighboring feed screw, predominantly up to the area of the feed screw axis, so that the edge of this dilation on the side of the feed screw forms the continuous cutting edge interacting with the turns of the feed screw. The device allows to attain the more uniform feeding of the subjected the reprocessing material into the feeding opening of the feed screw body and to produce the more uniform outlet at the discharge end of the feed screw.

EFFECT: the invention ensures the more uniform feeding of the subjected the reprocessing material into the feeding opening of the feed screw body and production of the more uniform outlet at the discharge end of the feed screw.

9 cl, 15 dwg