Title:
DROPLET DISCHARGE DEVICE AND DROPLET DISCHARGE METHOD
Document Type and Number:
Japanese Patent JP2019107621
Kind Code:
A
Abstract:
To provide a droplet discharge device and method capable of continuing liquid delivery to a discharge head when delivering a liquid material between optional tanks.SOLUTION: A droplet discharge device comprises: a droplet discharge head; a feed tank communicating with a first pressurization source; a recovery tank communicating with a first negative pressure source; a makeup tank communicating with the feed and recovery tanks; a shut-off valve A opening or closing the flow channel communicating the feed tank with the makeup tank; a shut-off valve B opening or closing the flow channel communicating the recovery tank with the makeup tank; a switch-over valve switching the communication of the makeup tank with a second pressurization source, and that of the makeup tank with a second negative pressure source; and a controller. The controller has: a discharge mode discharging a liquid material from the droplet discharge head; a makeup mode feeding the material from the makeup tank to the feed tank while feeding from the feed tank to the recovery tank; and a recovery mode feeding the material from the recovery tank to the makeup tank while feeding from the feed tank to the recovery tank. A droplet discharge method using the above device is also provided.SELECTED DRAWING: Figure 1
Inventors:
IKUSHIMA KAZUMASA
Application Number:
JP2017242785A
Publication Date:
July 04, 2019
Filing Date:
December 19, 2017
Export Citation:
Assignee:
MUSASHI ENG KK
International Classes:
B05C11/10; B05C5/00; B05D1/26; B05D3/00; B41J2/175; B41J2/18
Domestic Patent References:
| JP2017047413A | 2017-03-09 | |||
| JP2017217612A | 2017-12-14 | |||
| JP2009160558A | 2009-07-23 | |||
| JPH08215626A | 1996-08-27 | |||
| JP2009028676A | 2009-02-12 | |||
| JP2017018845A | 2017-01-26 | |||
| JP2008289983A | 2008-12-04 |
Attorney, Agent or Firm:
Akinobu Sudo
Asako Sudo
Asako Sudo