| 摘要 |
PURPOSE:To enable the title equipment to perform stable extrusion without having deterioration due to dwell of plastics, and without crush of a mixed filler, by a method wherein a rotary disk and feed screw are made turnable at adjustable and different turning speeds. CONSTITUTION:A rotation of an electric motor 20 provided with variable reduction gears is transmitted to a pulley 21 and pulley 23 of a shaft 5 fixed to a rotary disk 6 through a chain belt 22. On the one hand, the rotation of the electric motor 20 is transmitted to a pulley 26 in a variable reduction gears 25 through a chain belt 24 from the above-stated pulley 21, and the rotation of the electric motor 20 is transmitted further to a pulley 29 fixed to a feed screw 2 through a chain belt 28 from an output side pulley 27 of the variable reduction gears 25. With this construction, mutual action (accompanying drive) between the rotary disk 6 and feed screw 2 does not exist even in the presence of a solid state or molten state plastics. In addition, a prevention effect of dwell of plastics can be displayed effectively through appropriate balancing where a rotation between the rotary disk 6 and feed screw 2 is controlled and a rotation of the feed screw 2 is improved relatively. |
