Concrete additive quantitative feeding device

The utility model belongs to the technical field of feeding devices, and particularly discloses a concrete additive quantitative feeding device which comprises a discharging box, supports fixedly installed on the two sides of the discharging box and a feeding hopper installed on the discharging box in a vibrating mode. A horizontal mounting plate is arranged above the elastic telescopic piece, a circular hole is formed in the center of the mounting plate and allows the bottom of the feeding hopper to penetrate through, a vibrating mechanism for driving the mounting plate to vibrate up and down is arranged between the support and the mounting plate, a quantifying mechanism is arranged in the discharging box, and quantitative feeding is achieved by arranging a rotary disc and a quantifying groove; a small amount of the additive is added into the concrete for many times, so that the concrete is mixed more uniformly. 本实用新型属于给料装置技术领域，具体公开一种混凝土添加剂定量给料装置，包括出料箱、固定安装在出料箱两侧的支架和振动安装在出料箱上的进料斗，所述出料箱进料口左右两侧上部分别设有一个弹性伸缩件，所述