Title:
BLOWING DEVICE PROVIDED WITH PIEZOELECTRIC VALVE AND OPTICAL GRANULAR MATERIAL SORTING MACHINE USING SAID BLOWING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/043431
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a blowing device with which there is no possibility of causing a drop in the insulation of a piezoelectric device and burn out during use of the blowing device. The present invention is a blowing device for blowing a compressed gas supplied by a compressed gas supply unit from a nozzle hole in a nozzle unit by opening a piezoelectric valve and is characterized in that: the blowing device is provided with a moisture sensor for detecting moisture in the compressed gas in a flow path part, and a moisture control unit for comparing the value for the moisture detected by the moisture sensor with a setting value; and when the moisture of the compressed gas in the flow path part detected by the moisture sensor is equal to or greater than the setting value when use of the blowing device is initiated, the moisture control unit replaces the compressed gas in the flow path part with a compressed gas that is supplied by the compressed gas supply unit and for which the moisture is less than the setting value.
Inventors:
ITO TAKAFUMI (JP)
CHEE SZE KEAT (JP)
CHEE SZE KEAT (JP)
Application Number:
PCT/JP2016/075945
Publication Date:
March 16, 2017
Filing Date:
September 05, 2016
Export Citation:
Assignee:
SATAKE ENG CO LTD (JP)
International Classes:
B07C5/342; F16K31/02
Foreign References:
| JP2013124695A | 2013-06-24 | |||
| JP2011135001A | 2011-07-07 |
Attorney, Agent or Firm:
AIWA INTERNATIONAL PATENT AGENCY (JP)
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