Melt pump and screen changer

The double column hydraulic screen changer consists of a cylinder, a main body, a hydraulic cylinder, a perforated plate, a safety shield and other basic components. There are 2 filter channels on the main body of the screen changer, and the column body and porous plate are installed inside. The 2 columns can enter the working position and the screen changing position under the action of the hydraulic system.

The double screen of the double column hydraulic screen changer is applied at the same time, and one screen works and one screen is replaced when the screen is changed, without interrupting the material flow and without interrupting the product. The design of charging and exhaust system can fully exclude the gas in the material and the porous plate to be replaced, prevent the mesh changing process from forming in the product, and improve the quality of the product. The double runner design improves the filtration area and meets the production requirements of higher quality and higher yield. The screen changer is installed between the extruder and the mold, and the working state is controlled by the hydraulic system.

Adopts pressure driven rigid sealing technology to prevent leakage and extend service life. The sealing gap can be automatically compensated with the use process. Can meet the high extrusion production of any polymer, with different standards of extruder use, without stopping the screen change, no leakage. Large filtration area, suitable for extrusion production of different materials and different products. It has the function of charging, discharging and discharging to ensure the continuity of the products in the process of changing the screen.

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