Abstract: A poured molten metal quantity control device includes a fixed plate brick having at least one pouring port, a collector nozzle brick, a slide plate brick sandwiched therebetween, an outer race mounted so as to be turned on the outer peripheral side of the fixed plate brick by an extendable unit, and a frame having the slide plate brick mounted thereon that is mounted on the outer race through a pivotal hinge so as to be capable of opening and closing movements. The frame can be opened and closed through the pivotal hinge independently of the turning of the outer race with the extendable unit.

Abstract: A poured molten metal quantity control device includes a fixed plate brick having at least one pouring port, a collector nozzle brick, a slide plate brick sandwiched therebetween, an outer race mounted so as to be turned on the outer peripheral side of the fixed plate brick by an extendable unit, and a frame having the slide plate brick mounted thereon that is mounted on the outer race through a pivotal hinge so as to be capable or open and close operation, wherein the frame can be opened and closed by the pivotal hinge irrespectively of a turning means composed of the extendable unit as well as the outer race is turned by a crank mechanism using triangle points consisting of a support pivot P1, a center of turn P3, and a pivot P2, and the positions of the triangle points are defined such that the completely open/close positions of the pouring port are matched to the end point and the start point of the stroke of the extendable unit.