Patent ID: 6382477
Filing Date: 2002-05-07
Classification: B22D

Abstract:
A molten metal pouring amount control apparatus comprising:a base plate which is provided with a fixed plate having a nozzle hole and is to be attached to a molten metal container; a frame which is mounted to said base plate through a hinge in such a manner that the frame can be opened and closed; a slide frame which is accommodated in said frame slidably in a horizontal direction, driven by a driving means and provided with a sliding plate having a nozzle hole, said sliding plate being pressed against said fixed plate by springs interposed between said slide frame and said frame, and guide units each having a plurality of steel balls disposed in line between said slide frame and said springs, said guide units being disposed on both sides of said sliding plate, wherein said frame is provided with side walls each equipped with a clamp mounting metal having a clamp guide hole through which a clamp is inserted to be protruded over said slide frame, and said slide frame is equipped with cams on its upper surface correspondingly to the protruded clamps, so that said cams et under the protruded clamps to press down the slide frame against an arguing force of said springs when the slide frame is advanced or retracted.