公开(公告)号：US10369761B2

公开(公告)日：2019-08-06

申请号：US15121699

申请日：2015-02-26

Applicant: VALMET AUTOMATION OY

Inventor： Markku Mäntylä ,  Mikko Lassila ,  Mikko Talonen ,  Kari Söder ,  Marko Toskala

IPC: B32B41/00 ,  B31F1/28 ,  D21F11/12

Abstract: Control equipment for the manufacture of corrugated cardboard. The manufacturing equipment includes a gluing unit, a sensor arrangement and actuator equipment. The actuator equipment is adapted to adjust the moisture on a first surface of a liner on the basis of measurements taken by the sensor arrangement for gluing the liner by its first surface to a fluting paper.

公开(公告)号：US11692943B2

公开(公告)日：2023-07-04

申请号：US17707532

申请日：2022-03-29

Applicant: VALMET AUTOMATION OY

Inventor： Kari Veikkolainen ,  Marko Toskala ,  Markku Mäntylä

IPC: G01N21/86 ,  G01N21/31 ,  G01N21/59 ,  G01N23/083 ,  G01N23/16

CPC classification number: G01N21/86 ,  G01N21/31 ,  G01N21/59 ,  G01N23/083 ,  G01N23/16 ,  G01N2021/8663

Abstract: Measurement apparatus including an optical sensor, which performs repeatedly transmission measurements through moving sheet of paper or board at at least one wavelength band dominantly absorbed by water, at at least one wavelength band dominantly absorbed by cellulose. The apparatus also includes an X-ray sensor, which performs repeatedly transmission measurements through the moving sheet of paper or board with photons of electromagnetic radiation (1 keV to 10 keV). The apparatus comprises a data processing unit, which receives signals with information on intensities of the optical and X-ray radiations passed through the sheet from the optical sensor and the X-ray sensor, and determines, based on the information, all of the following of the moving sheet: the dry stuff content as a function of the cellulose mass per unit area of the sheet, water mass per unit area of the sheet and the ash mass per unit area of the sheet.

公开(公告)号：US10043256B2

公开(公告)日：2018-08-07

申请号：US14649037

申请日：2013-11-26

Applicant: VALMET AUTOMATION OY

Inventor： Marko Toskala ,  Ismo Mäkelä ,  Markku Mäntylä

IPC: G06T7/00 ,  B31F1/12 ,  D21F7/06 ,  D21G9/00 ,  G01N21/89 ,  G01B11/30 ,  G01B11/06 ,  G06T15/04 ,  G06T7/593

Abstract: A topographical imaging device is placable after a creping process which causes folds to the tissue sheet and the topographical imaging device provides image data having three-dimensional information on the tissue sheet. A data processing device determines, on the basis of a shape of a cross section of at least one fold of creping of the tissue sheet, at least one of the following: thickness of the tissue sheet, softness of the tissue sheet.