A MELT PUMP FOR BUILDING UP PRESSURE BY PRESSING A MELT OF SYNTHETIC MATERIAL THROUGH A TOOL

摘要

A melt pump is provided for building up pressure for pressing a melt ofsynthetic material through a tool, comprising a compressor with two wormconveyors disposed in a housing, a transmission by way of which theworm conveyors are synchronously drivable and a drive, wherein thetransmission is disposed between the drive and the compressor, whereineach worm conveyor in the transmission is provided with its own outputshaft and wherein the worm conveyor is connected to the correspondingoutput shaft by way of a coupling. The worm gap between the two wormconveyors is easily adjustable at will via the coupling which comprises anoutput gear provided on the output shaft, a drive gear provided on theworm conveyor and a coupling sleeve gripping the output gear and thedrive gear and that the drive gear and the output gear have a differentnumber of teeth.