Title:
METHOD FOR DETECTING FIRE IN LASER PROCESSING MACHINE, AND LASER PROCESSING MACHINE
Document Type and Number:
WIPO Patent Application WO/2018/142966
Kind Code:
A1
Abstract:
The laser processing machine according to the present invention is provided with an infrared camera as a fire outbreak detection unit in a portion of a machine body of the laser processing machine. A space between the infrared camera and a laser processing position farthest separated from the infrared camera is divided into a plurality of detection areas. Through the method of the present invention for detecting fire outbreak in the abovementioned laser processing machine, a detection value of the infrared camera is corrected using an emissivity set in advance for each detection area. Fire outbreak is detected when a temperature equal to or greater than a pre-set temperature is detected continuously for a pre-set time.
Inventors:
ENDOU KOUICHI (JP)
SETOGUCHI JUN (JP)
SETOGUCHI JUN (JP)
Application Number:
PCT/JP2018/001564
Publication Date:
August 09, 2018
Filing Date:
January 19, 2018
Export Citation:
Assignee:
AMADA HOLDINGS CO LTD (JP)
International Classes:
B23K26/00; B23K26/70; G08B17/00; G08B17/12
Foreign References:
| JP2014093002A | 2014-05-19 | |||
| JP2000259966A | 2000-09-22 | |||
| JPH051949A | 1993-01-08 | |||
| JP2010097265A | 2010-04-30 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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