CA2263211A1 - Process for elimination of paper defects in continuous paper production - Google Patents
Process for elimination of paper defects in continuous paper productionInfo
- Publication number
- CA2263211A1 CA2263211A1 CA002263211A CA2263211A CA2263211A1 CA 2263211 A1 CA2263211 A1 CA 2263211A1 CA 002263211 A CA002263211 A CA 002263211A CA 2263211 A CA2263211 A CA 2263211A CA 2263211 A1 CA2263211 A1 CA 2263211A1
- Authority
- CA
- Canada
- Prior art keywords
- paper
- defect
- web
- station
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0009—Paper-making control systems
Abstract
A process for elimination of paper defects during continuous paper production which reduces time lost due to defect correction has the following steps: a) recognition and localization of the paper defect by means of sensors (5) directed at the running paper web (4);
b) detection or calculation of the speed of the paper web (4) between the sensor (5) and a station (6) for defect correction positioned downstream from the sensor (5); c) on the basis of the speed of the paper web, calculation of the arrival time of the web segment with the paper defect at the station (6) for defect correction; d) before arrival of the web segment with the paper defect at the station (6) for defect correction, reduction of the web segment speed to a lower value than normal speed or to zero, e) automatic removal of the paper defect in station (6) for defect correction and f) restoring the web section to normal speed.
b) detection or calculation of the speed of the paper web (4) between the sensor (5) and a station (6) for defect correction positioned downstream from the sensor (5); c) on the basis of the speed of the paper web, calculation of the arrival time of the web segment with the paper defect at the station (6) for defect correction; d) before arrival of the web segment with the paper defect at the station (6) for defect correction, reduction of the web segment speed to a lower value than normal speed or to zero, e) automatic removal of the paper defect in station (6) for defect correction and f) restoring the web section to normal speed.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19632988.4 | 1996-08-15 | ||
DE19632988A DE19632988C1 (en) | 1996-08-15 | 1996-08-15 | Process for eliminating paper defects in continuous paper production |
PCT/EP1997/003859 WO1998006897A1 (en) | 1996-08-15 | 1997-07-18 | Process for elimination of paper defects in continuous paper production |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2263211A1 true CA2263211A1 (en) | 1998-02-19 |
CA2263211C CA2263211C (en) | 2006-04-18 |
Family
ID=7802762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002263211A Expired - Fee Related CA2263211C (en) | 1996-08-15 | 1997-07-18 | Process for elimination of paper defects in continuous paper production |
Country Status (16)
Country | Link |
---|---|
EP (1) | EP0922139B1 (en) |
JP (1) | JP2001502648A (en) |
KR (1) | KR20000029927A (en) |
CN (1) | CN1104526C (en) |
AT (1) | ATE210762T1 (en) |
BR (1) | BR9714336A (en) |
CA (1) | CA2263211C (en) |
CZ (1) | CZ297849B6 (en) |
DE (2) | DE19632988C1 (en) |
ES (1) | ES2165084T3 (en) |
ID (1) | ID17869A (en) |
NO (1) | NO313558B1 (en) |
PL (1) | PL184169B1 (en) |
PT (1) | PT922139E (en) |
RU (1) | RU2166017C2 (en) |
WO (1) | WO1998006897A1 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI990159A (en) * | 1999-01-28 | 2000-07-29 | Valmet Automation Inc | Procedure for monitoring the quality of a fiber web |
DE10011067A1 (en) * | 2000-03-07 | 2001-09-13 | Voith Paper Patent Gmbh | During paper web production a system measures and monitors the shrinkage and other characteristics with data to be used by customers to set their processes easily and with reduced wastage |
US20020176617A1 (en) * | 2001-05-22 | 2002-11-28 | Pti Advanced Filtration, Inc. | System and method for continuous integrity testing of a material web |
DE102005053037A1 (en) * | 2005-11-04 | 2007-05-10 | Maschinenfabrik Rieter Ag | Fiber stream`s e.g. yarn, dirt detecting method for textile machine, involves producing images of fiber stream parts to determine whether discrepancy is concluded in detected radiation within images in presence of dirt within fiber parts |
FI118924B (en) | 2005-12-05 | 2008-05-15 | Metso Paper Inc | Apparatus and method for removing a broken pulp web from a cell dryer |
FI119981B (en) | 2006-09-06 | 2009-05-29 | Metso Paper Inc | Method and apparatus for patching fibrous material |
DE102006047487A1 (en) * | 2006-10-05 | 2008-04-10 | Voith Patent Gmbh | dryer assembly |
CN101815665B (en) * | 2007-09-27 | 2012-10-10 | Abb有限公司 | Accurate tracking of web features through converting processes |
FI121859B (en) * | 2008-11-25 | 2011-05-13 | Metso Automation Oy | A method for controlling the repair of a web with a rolling machine and corresponding system |
US9053413B2 (en) | 2013-07-22 | 2015-06-09 | Xerox Corporation | Automatically identifying locations of printing defects within printed rolls |
CN104326125B (en) * | 2014-08-28 | 2016-08-24 | 北京凌云光技术有限责任公司 | Flaw label tracking and device |
CN104326301B (en) * | 2014-08-28 | 2017-02-08 | 北京凌云光技术有限责任公司 | Defective tag automatic removing device and system using automatic removing device |
CN104637156B (en) * | 2015-03-06 | 2017-05-24 | 广州广电运通金融电子股份有限公司 | Paper money roll-out control method and device as well as paper money storage equipment |
CN105500919B (en) * | 2015-12-30 | 2017-11-10 | 凌云光技术集团有限责任公司 | A kind of label defect alarm method and device |
IT201600127586A1 (en) * | 2016-12-16 | 2018-06-16 | Futura Spa | Plant for the production of paper material logs. |
CN109366568A (en) * | 2018-11-30 | 2019-02-22 | 广州市普理司科技有限公司 | Multi-functional automatic product examine machine and its control method |
CN111879781B (en) * | 2020-06-17 | 2022-02-11 | 西安交通大学 | Test paper quality detection system based on machine vision |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62295862A (en) * | 1986-06-13 | 1987-12-23 | Toshiba Corp | Sheet repair control device for winder |
FR2670896B1 (en) * | 1990-12-24 | 1994-08-12 | Siderurgie Fse Inst Rech | DEVICE FOR DETECTING FAULTS OF A STRIP WHILE BEING TRIPPED. |
JP2848028B2 (en) * | 1991-05-29 | 1999-01-20 | 王子製紙株式会社 | Web repair method and repair device |
-
1996
- 1996-08-15 DE DE19632988A patent/DE19632988C1/en not_active Expired - Fee Related
-
1997
- 1997-07-18 BR BR9714336-7A patent/BR9714336A/en not_active IP Right Cessation
- 1997-07-18 KR KR1019997001143A patent/KR20000029927A/en not_active Application Discontinuation
- 1997-07-18 WO PCT/EP1997/003859 patent/WO1998006897A1/en active IP Right Grant
- 1997-07-18 CZ CZ0048899A patent/CZ297849B6/en not_active IP Right Cessation
- 1997-07-18 CA CA002263211A patent/CA2263211C/en not_active Expired - Fee Related
- 1997-07-18 JP JP10509323A patent/JP2001502648A/en active Pending
- 1997-07-18 PT PT97937503T patent/PT922139E/en unknown
- 1997-07-18 AT AT97937503T patent/ATE210762T1/en not_active IP Right Cessation
- 1997-07-18 EP EP97937503A patent/EP0922139B1/en not_active Expired - Lifetime
- 1997-07-18 ES ES97937503T patent/ES2165084T3/en not_active Expired - Lifetime
- 1997-07-18 CN CN97197256A patent/CN1104526C/en not_active Expired - Fee Related
- 1997-07-18 RU RU99105120/12A patent/RU2166017C2/en not_active IP Right Cessation
- 1997-07-18 DE DE59705791T patent/DE59705791D1/en not_active Expired - Fee Related
- 1997-08-14 ID IDP972852A patent/ID17869A/en unknown
-
1999
- 1999-02-09 NO NO19990605A patent/NO313558B1/en not_active IP Right Cessation
- 1999-02-12 PL PL97331586A patent/PL184169B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CZ48899A3 (en) | 1999-07-14 |
ATE210762T1 (en) | 2001-12-15 |
RU2166017C2 (en) | 2001-04-27 |
JP2001502648A (en) | 2001-02-27 |
DE59705791D1 (en) | 2002-01-24 |
NO990605D0 (en) | 1999-02-09 |
ES2165084T3 (en) | 2002-03-01 |
BR9714336A (en) | 2000-04-11 |
WO1998006897A1 (en) | 1998-02-19 |
CN1104526C (en) | 2003-04-02 |
EP0922139A1 (en) | 1999-06-16 |
KR20000029927A (en) | 2000-05-25 |
PL331586A1 (en) | 1999-07-19 |
CN1228132A (en) | 1999-09-08 |
EP0922139B1 (en) | 2001-12-12 |
DE19632988C1 (en) | 1998-01-22 |
NO313558B1 (en) | 2002-10-21 |
ID17869A (en) | 1998-02-05 |
NO990605L (en) | 1999-02-09 |
PT922139E (en) | 2002-04-29 |
PL184169B1 (en) | 2002-09-30 |
CA2263211C (en) | 2006-04-18 |
CZ297849B6 (en) | 2007-04-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |