Viscous liquid supply apparatus

A viscous liquid supply apparatus, comprising:

• a storage tank that stores viscous liquid, and
• a pump that supplies the viscous liquid stored in the storage tank to a use point, wherein
• the viscous liquid supply apparatus is configured with
• a viscometer that measures a viscosity of the viscous liquid stored in the storage tank, and
• a replenishment device that supplies replenishment liquid to the storage tank based on the viscosity measured with the viscometer,
• the viscometer is a rotary type viscometer that has a rotor in a cylindrical shape wherein the rotor is immersed in the viscous liquid and rotates therein,
• the rotor is configured with a stirring blade that agitates the viscous liquid inside the storage tank,
• the use point is arranged at a middle of a circulation line along which the viscous liquid stored in the storage tank is circulated to an outside of the storage tank,
• the viscous liquid is a sealing liquid that forms a band seal on a capsule, and is supplied to a seal pan that is arranged at the use point,
• the sealing liquid existing inside the sealing pan is collected in the storage tank with the circulation line, and
• when the viscosity of the viscous liquid stored in the storage tank changes due to a water content of the viscous liquid being evaporated at use point, the viscometer measures the viscosity while stirring the viscous liquid with the stirring blade and the replenishment device controls the supply amount of water as the replenishment liquid according to the detection of the viscometer.