Discharge device for liquid material containing solid particles, application device and application method

Abstract

[Problem] To provide a device and a method of discharging a liquid in a state of solid particles being dispersed in the liquid with a minimum additional structure for dispersing the solid particles. [Solution] A discharge device and an application device each include a storage container in which the liquid material containing solid particles is stored; a measuring unit having a measuring hole; a plunger disposed in the measuring hole; a nozzle; a selector valve having a first position at which the storage container and the measuring unit are communicated with each other, and a second position at which the measuring unit and the nozzle are communicated with each other; a plunger drive device; a selector valve drive device; and a discharge control device, wherein a discharge control program includes a filling step of operating the selector valve to the first position and filling the liquid material into the measuring hole; an ejection step of operating the selector valve to the second position and discharging the liquid material in the measuring hole from a discharge port; an inflow step of operating the selector valve to the first position and causing the liquid material in the measuring hole to flow into the storage container; a discharge step of successively executing the filling step and the ejection step; and a stirring step of successively executing the filling step and the inflow step.