Liquid supplying device
AssigneeKoganei Corporation
InventorTakeo Yajima
Life of this patent
Estimating the term…
Abstract
A liquid supplying device includes: a first pump and a second pump respectively provided in a liquid supplying path that supplies liquid contained in a liquid accommodating portion to an applicator; a filter passing through the liquid that flows toward the applicator; and a return flow path that returns the liquid passing through the filter to the liquid accommodating portion. In a circulating mode that supplies the liquid to the return flow path and stops supply of the liquid to the applicator, any of the first pump and the second pump continuously supplies the liquid to the return flow path.
Claims8
A liquid supplying device that supplies liquid contained in a liquid accommodating portion to an applicator, the applicator applying the liquid to a coated object, the liquid supplying device comprising:
- a first pump and a second pump respectively provided in a liquid supplying path that supplies the liquid contained in the liquid accommodating portion to the applicator;
- a filter provided in the liquid supplying path to filter the liquid that flows toward the applicator;
- a return flow path for returning the liquid, which has passed through the filter, to the liquid accommodating portion;
- and
- a control unit that controls the first pump and the second pump in a coating mode and a circulating mode, the liquid being supplied to the applicator and supply of the liquid to the return flow path being stopped in the coating mode, the liquid being supplied to the return flow path and the supply of the liquid to the applicator being stopped in the circulating mode,
- wherein,
- the first pump is an intermittent discharge pump that alternatively performs a discharge operation and a sucking operation;
- the second pump is a continuous discharge pump that continuously discharges the liquid;
- in the coating mode, the control unit controls the first pump to discharge an application amount of liquid to the coated object, and
- in the circulating mode, the control unit controls the second pump to continuously flow a return flow rate of liquid to the return flow path.
Dependencies are inferred from the claim text.