Title:
DEVICE FOR DETECTING PAPER SPLICE PART OF CARDBOARD SHEET, AND DEVICE FOR PRODUCING CARDBOARD SHEET
Document Type and Number:
WIPO Patent Application WO/2022/138570
Kind Code:
A1
Abstract:
In a device for detecting a paper splice part of a cardboard sheet and a device for producing a cardboard sheet, the device for detecting a paper splice part of a cardboard sheet, which detects a sheet paper splice part of a cardboard sheet that has a first sheet, a corrugated second sheet, and a third sheet bonded together, comprises: a sheet paper splice detection unit that detects the sheet paper splice part on the basis of the shape of the sheet and that is placed between a position at which sheets are spliced and a position at which the sheets are bonded in a sheet carrying direction; a marking device that marks the sheet paper splice part on the downstream side of the sheet paper splice detection unit in the sheet carrying direction; and a mark detection device that detects the mark on the downstream side of the marking device in the sheet carrying direction.
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Inventors:
NITTA TAKASHI (JP)
TAKEMOTO SHUICHI (JP)
KAWASE JUNICHI (JP)
MIZUSHIMA KAZUKI (JP)
TAKEMOTO SHUICHI (JP)
KAWASE JUNICHI (JP)
MIZUSHIMA KAZUKI (JP)
Application Number:
PCT/JP2021/047052
Publication Date:
June 30, 2022
Filing Date:
December 20, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY IND MACH SYSTEMS LTD (JP)
International Classes:
B31F5/00; B65H21/00; B65H26/02
Foreign References:
JP2018002341A | 2018-01-11 | |||
JP2010105772A | 2010-05-13 | |||
JP2009113895A | 2009-05-28 | |||
JP2009045910A | 2009-03-05 | |||
JP2013202916A | 2013-10-07 | |||
US4901577A | 1990-02-20 | |||
JP2018002341A | 2018-01-11 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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