The working principle of the melt pump

The melt pump is a positive displacement delivery device , flow rate and pump speed was strictly proportional . Mainly by the casing , the drive gear , the driven gear , sliding bearings , front and rear end plates and other components. Tooth profile by the two gears , pump, pump side cover constitutes the feed zone , conveying zone and the discharge zone . Working volume changes depend working intermeshing driving and driven gears to convey melt caused . Cogging displacement pump , a gear plate having the function of bearing. When the gear is rotated in a predetermined direction , i.e., the melt feed into the alveolar region of the gears , with the gear, is brought into the melt from both sides of the conveying region of the re- engagement of the gear , so that the melt alveolar discharge region is extruded body discharge pressure to the outlet pipe. As long as the shaft rotates, the gear is sent to the outlet on the pressure melt , so the pump outlet can reach very high pressure , while imports no high flow and pressure requirements can even be imported vacuum suction , widely used in plastic , resin , rubber extrusion , such as granulation , film, pipe, sheet metal sheets , etc. , can be divided according to the spur gear , helical , herringbone teeth and so on.

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