Quantitative raw material feeding device for waterproof roll production

The invention relates to the technical field of waterproof roll production, and discloses a raw material quantitative feeding device for waterproof roll production, a discharging channel is formed in the bottom surface of an inner cavity of a mounting shell, a cylindrical assembling shell is arranged in an inner cavity of the discharging channel, and the right end of the assembling shell extends out of the inner cavity of the discharging channel in a sealed mode. When the raw material quantitative feeding device for waterproof roll production is used, the servo motor is arranged to drive the assembling shell to rotate, so that raw materials falling into the discharging groove are driven to enter the discharging groove, the raw materials are driven to be fed through the transmission screw rod, and the discharging amount is calculated according to the rotating speed of the servo motor and the volume of the discharging groove; the adjusting lead screw drives the adjusting block to move in the discharging groove,