Multi-quantitative-cylinder device

The utility model provides a multi-quantitative-cylinder device which comprises a quantitative unit, the quantitative unit comprises a base and a bottom plate used for fixing the base, the base is provided with a material storage channel, the material storage channel is communicated with a quantitative cylinder, the quantitative cylinder is perpendicular to the base, the material storage channel is further communicated with a feeding channel and a discharging channel which can be opened and closed, and a piston is arranged in the quantitative cylinder in a sliding mode; piston rods are arranged on the upper surfaces of the pistons; the number of the quantitative units is at least two, the multiple quantitative units are longitudinally and coaxially arranged, a force bearing rod is arranged between every two adjacent quantitative units, the upper end of each force bearing rod penetrates through the bottom plate and the base of the previous quantitative unit and is connected with the corresponding piston, and t