TWIN-SCREW SYSTEM AND METHOD FOR FILLING PACKETS WITH HYDRAULIC FLUID Russian patent published in 2012 - IPC B65B9/12 B65B1/30 

FIELD: packaging industry.

SUBSTANCE: method of packaging includes the formation of the package, filling it with the composition with use of screws of at least imprecise and precise dosing. Each of the screws is mounted inside the tube which inner diameter is slightly greater than the diameter of the screw and is made with the ability to feed the composition to opposite sides of the attached package. At that, during the first stage the composition is fed either with the screw of imprecise dosing or with both screws simultaneously, and during the second stage the composition is fed into a package only with precise dosing screw. Then the package is sealed. The device for implementation the method comprises a frame, devices for forming a package attached to the frame, and for filling the package, installed on the frame and comprising at least screws of imprecise and precise dosing, which are implemented the same way as in the method. At that, during the first stage the composition is fed into the package with both screws, and during the second stage the composition sealing of joints is fed into the package only with the precise dosing screw. The device also comprises a device for sealing packages.

EFFECT: improved accuracy of dosing, performance, and reduction of blockages during the dosing.

10 cl, 1 dwg