Screw extruder

Details Screw extruder Screw extruder

B - Operations, Transporting

29

F

18/718

B29F 3/01 (1980.01)

Patent

CA 1072711

ABSTRACT OF THE DISCLOSURE The invention provides a screw extruder for molding plastic materials. The extruder includes a prime mover and an extruding unit, separated from the prime mover. The extruding unit has a screw unit equipped with a screw and a speed reduction unit composed of planetary gears which transmit power to the screw unit. The reduction unit has an input shaft and output shaft aligned with each other and the screw; the output shaft being provided with a hole extending therethrough, and the input shaft being provided with a hole extending therethrough, and communicating with the hole of the output shaft. A transmission assembly transmits power from the prime mover to the reduction unit. The extruder is compact, light in weight and well balanced so that it is well adapted to mounting on a vertical column stand, and the openings through the input and output shafts make it easy to remove the screw from the screw unit in order to clean the inside thereof.

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