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Patent Searching and Data


Title:
LIQUID MATERIAL DISCHARGE DEVICE, AND APPLICATION DEVICE AND APPLICATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2017/208956
Kind Code:
A1
Abstract:
[Problem] To provide a liquid material discharge device and method which are capable of suppressing the formation of bubbles caused by a rod raising operation, in a negative pressure environment. Furthermore, to provide a liquid material discharge device and method which solve the problem of leakage of a liquid material which occurs as a result of insufficient blockage by a valve rod tip due to wear of the valve rod tip or a valve seat. [Solution] This liquid material discharge device is used in a negative pressure space, and is provided with: a storage container; a compressed gas supply source for pressurizing the storage container; a nozzle provided with a discharge flow path; a reciprocating valve rod; an actuator which drives the valve rod; a valve seat provided with a communication hole which communicates with the discharge flow path; and a discharge control device which controls the actuator such that the communication hole is opened and closed by the tip of the valve rod. The discharge control device inhibits the formation of bubbles which accompanies the raising of the valve rod, by controlling the acceleration time Au when the valve rod is raised by the actuator, to within the range of 2-300 [ms].

Inventors:
IKUSHIMA, Kazumasa (Inc. 1-11-6, Iguchi, Mitaka-sh, Tokyo 11, 〒1810011, JP)
Application Number:
JP2017/019503
Publication Date:
December 07, 2017
Filing Date:
May 25, 2017
Export Citation:
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Assignee:
MUSASHI ENGINEERING, INC. (1-11-6, Iguchi Mitaka-sh, Tokyo 11, 〒1810011, JP)
International Classes:
B05C5/00; B05C11/10; B05D1/26
Attorney, Agent or Firm:
SUDO, Akinobu et al. (#603 Est Grandir CARO, 2-4-17 Kichijoji-Honcho, Musashino-sh, Tokyo 04, 〒1800004, JP)
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