DEVICE TO FORM ARTICLES OF CONCRETE MIXTURE Russian patent published in 1995 - IPC

FIELD: production of concrete articles. SUBSTANCE: device has a tray to form articles of concrete mixtures, casing, oil plant with pressure and dump lines, a hydraulic cylinder the rod of which interacts with the tray, controlling and setting-up distributors provided with control valves and sleeves with distributing passages, throttle valve. The hydraulic cylinder has cavities for the rod and piston. The control valve of the distributor is linked to a pusher interacting with the piston of one hydraulic cylinder. The casing has rests to interact with the tray. The controlling distributor has a control chamber connected to the lines. A throttle valve is located on the line connecting control chamber with dump point. Control device is made to move the sleeve as to the casing. The control device may be made in the form of eccentric, placed on the axis of setting-up distributor, interacting with the sleeve. EFFECT: high productivity. 5 cl, 2 dwg