EP0754159B1 - Verfahren zum einleiten eines vorzeitigen rollenwechsels - Google Patents
Verfahren zum einleiten eines vorzeitigen rollenwechsels Download PDFInfo
- Publication number
- EP0754159B1 EP0754159B1 EP95915861A EP95915861A EP0754159B1 EP 0754159 B1 EP0754159 B1 EP 0754159B1 EP 95915861 A EP95915861 A EP 95915861A EP 95915861 A EP95915861 A EP 95915861A EP 0754159 B1 EP0754159 B1 EP 0754159B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- temperature
- reel
- roll
- web
- spool
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000000977 initiatory effect Effects 0.000 title claims abstract description 6
- 230000002028 premature Effects 0.000 title abstract description 4
- 239000000463 material Substances 0.000 title description 4
- 238000009529 body temperature measurement Methods 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 14
- 238000007639 printing Methods 0.000 claims description 2
- 239000000109 continuous material Substances 0.000 claims 2
- 239000000123 paper Substances 0.000 description 26
- 230000007547 defect Effects 0.000 description 10
- 238000012544 monitoring process Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 241000209035 Ilex Species 0.000 description 1
- 241001417494 Sciaenidae Species 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H19/00—Changing the web roll
- B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
- B65H26/08—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to a predetermined diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/10—Size; Dimensions
- B65H2511/14—Diameter, e.g. of roll or package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/50—Occurence
- B65H2511/52—Defective operating conditions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/40—Temperature; Thermal conductivity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
- B65H2557/50—Use of particular electromagnetic waves, e.g. light, radiowaves or microwaves
- B65H2557/512—Use of particular electromagnetic waves, e.g. light, radiowaves or microwaves infrared
Definitions
- the present application relates to a method to initiate an early role change a web to be unwound from a sleeve, especially a paper web.
- Sleeve stands for Drums, cardboard or metal winding cores.
- the object of the present invention is to achieve this to provide a process that in the manufacture of rolls with large Roll diameter and large web width, especially in the paper industry, a Possibility to determine im Creates core areas occurring defects, so that the production of large rolls up to Exploitation of their physical winding limits is made possible and that on the sleeve necessarily remaining number of layers is minimized.
- the inventors have now recognized that within of a particular one lying adjacent to the sleeve Range of layers of the paper web certain Temperature phenomena can occur that lead to take advantage of early detection of defects let and initiate a role change allow before it through the flaws too a demolition of the web comes. With the mentioned Temperature phenomena are point or flat spots with a few tenths ° C increased temperature. These places are not to be confused with ring-shaped Temperature phenomena, which are also in the Core area are observed and compared to the layers further away from the sleeve have a high temperature on a web.
- the paper comes with a high Temperature from the dryer section of the Paper machine.
- the temperature in the core area drops at first, the further the drum goes away from the nip.
- the mass of the paper roll grows over 60% of the final mass of the finished roll, sounds the trend of falling temperature in the Core area clearly.
- the trend is falling Temperatures reversed, and the temperature rose in a zone that is about 5 to 150 mm, especially 10 to 80 mm, from the surface of the Sleeve is removed. It formed only a few mm wide within the zone annular temperature point in the edge area of the Role. Detected temperature differences of ⁇ 0.5 ° C at points or areas inside the narrow annular Temperature point - compared to cooler ones adjacent areas of the annular Temperature point - indicate defects that demolition in the subsequent processing being able to lead.
- unwinding coated LWC paper with a weight per unit area of 75 g / m 2 there were temperature differences of up to 1.6 ° C at the beginning of the unwinding.
- the temperature of the rollers is preferably measured on both end faces.
- the Temperature measurement by an infrared camera the is equipped with a linear guide, traversing across the entire width of the roll to be done.
- a calculator evaluates that Temperature profile across the entire width of the roll out. If a specified one is exceeded Temperature difference between center and Edge area of the roll is a control signal to the Exchange device for triggering the Exchange process issued.
- infrared cameras have a resolution accuracy of at least 0.2 ° C proven.
- the ambient temperature at which the Measurements take place is on average 30 ° C.
- the methods of the invention are not only based on the winding of webs of paper applicable. Even when winding material webs out Plastic fibers or foils are created with growing role mass warming in the core area the role.
- FIG. 1 shows the end face of the completely wound roll (1) shortly before it is ejected from the rewinding of a paper machine, not shown.
- the area of the sleeve (2) is hatched.
- the dashed circle (4) corresponds to 60% of the finished diameter and indicates the start of temperature monitoring.
- the paper layers of the annular temperature point (5) have a temperature 1.3 ° C higher than the directly adjacent paper layers.
- the end face of the roller (1) also shows a local point-like temperature point (6) which, compared to the ring-shaped temperature point (5), again has a temperature which is 0.5 ° C higher.
- the temperature gradation between the positions of the annular temperature point (5) and the local elevated temperature point (6) can be seen from FIGS. 4 and 5.
- the perspective view of the roller (1) in Figure 2 shows the position of an annular Temperature point (5) in the edge area (R) of the roll (1).
- the Hollow cylinder is with thin solid lines drawn, whereas the ring-shaped Temperature point (5) again by a thick dash-dotted line is shown.
- the measuring device of the infrared camera gives the coordinates of the place, d. H. the radial Distance from the sleeve surface when exceeded a temperature difference of 1 set here ° C to the memory (10).
- the Exchange facility (11) receives the transaction previously saved coordinates of the location and resolves the preferred one when the place is reached Role change. Determines the measuring device the infrared camera has smaller temperature differences, the change process is only complete Utilization of the wound web length respectively.
- FIG. 3 An alternative embodiment of the invention is shown in FIG. 3.
- the sheet-like temperature point (6 ') previously created at maximum roll mass has weakened only slightly in the course of the unwinding time due to the good insulating properties of paper and can also be detected in a larger area.
- the traversing, constantly measuring infrared camera (8 ') records the temperature profile across the roll width.
- An internal computer evaluates the temperature difference of the edges (R), which make up about 1/8 of the roll width, compared to the central area of the roll. If there is a set temperature difference, the computer transmits a control signal to the input of the changing device (11 '), which thus triggers the premature roll change.
- web breakers are successfully avoided by monitoring the temperature effects during un
- FIGS. 4 and 5 Infrared temperature recordings on rotating LWC base papers are shown in FIGS. 4 and 5.
- the sleeve diameter (d H ) and the zone (Z) are given in FIG. 5 for better orientation.
- Figure 4 shows the detail of a flat temperature point (6) on an enlarged scale.
- Figure 5 the gray gradation of the normally colored infrared image clearly shows the local temperature point (6) occurring within an annular temperature point (5) in the core area of the roll (1).
- the temperature difference between the annular temperature point (5) and the local flat temperature point (6) is 0.5 ° C.
- the adjacent paper layers (12) have a temperature of approximately 31.9 ° C.
Landscapes
- Paper (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
- Windings For Motors And Generators (AREA)
- Winding Of Webs (AREA)
- Replacement Of Web Rolls (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
- mit einer berührungslosen Temperaturmeßeinrichtung wird, während die Rolle beim Auf- oder Abwickelvorgang 100 % bis 60 % ihrer Masse aufweist, stirnseitig in einer Zone, die bis zu 150 mm in radialer Richtung von der Oberfläche der Hülse entfernt ist, die Temperatur gemessen,
- bei einer festgestellten Temperaturdifferenz von ≥ 0,5 °C zwischen punkt- oder flächenförmigen Temperaturstellen innerhalb der Zone und den kühleren benachbarten Bereichen wird der radiale Abstand von der Hülsenoberfläche ermittelt,
- der ermittelte Abstand wird zur Auslösung eines Signals, das den Rollenwechsel bei Erreichen des Abstandes auslöst, abgespeichert.
- während die Rolle im Bereich von 100 mm von der Hülsenoberfläche entfernt bis zum Ende abgewickelt wird, wird oberhalb der abzuwickelnden Warenbahn eine berührungslose Temperaturmessung im Randbereich sowie im Mittenbereich der Rolle durchgeführt,
- durch Ermittlung einer Temperaturdifferenz im Randbereich der Rolle im Vergleich zum Mittenbereich von > 0,5 °C wird durch von der Temperaturmeßeinrichtung ausgelöste Steuersignale ein vorgezogener Rollenwechsel eingeleitet.
Claims (5)
- Verfahren zum Einleiten eines vorzeitigen Rollenwechsels einer von einer Hülse abzuwickelnden Warenbahn, insbesondere einer Papierbahn, gekennzeichnet durch die Kombination der nachfolgenden Merkmale:mit einer berührungslosen Temperaturmeßeinrichtung wird, während die Rolle beim Auf- oder Abwickelvorgang 100 % bis 60 % ihrer Masse aufweist, stirnseitig in einer Zone, die bis zu 150 mm in radialer Richtung von der Oberfläche der Hülse entfernt ist, die Temperatur gemessen,bei einer festgestellten Temperaturdifferenz von ≥ 0,5 °C zwischen punkt- oder flächenförmigen Temperaturstellen innerhalb der Zone und den kühleren benachbarten Bereichen wird der radiale Abstand von der Hülsenoberfläche ermittelt,der ermittelte Abstand wird zur Auslösung eines Signals, das den Rollenwechsel bei Erreichen des Abstandes auslöst, abgespeichert.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Temperaturmessung von beiden Stirnseiten der Rolle erfolgt.
- Verfahren zum Einleiten eines Rollenwechsels einer von einer Hülse abzuwickelnden Warenbahn, insbesondere einer Papierbahn in Rollendruckmaschinen, gekennzeichnet durch die Kombination der nachfolgenden Merkmale:während die Rolle im Bereich von 100 mm von der Hülsenoberfläche entfernt bis zum Ende abgewickelt wird, wird oberhalb der abzuwickelnden Warenbahn eine berührungslose Temperaturmessung im Randbereich sowie im Mittenbereich der Rolle durchgeführt,durch Ermittlung einer Temperaturdifferenz im Randbereich der Rolle im Vergleich zum Mittenbereich von > 0,5 °C wird durch von der Temperaturmeßeinrichtung ausgelöste Steuersignale ein vorgezogener Rollenwechsel eingeleitet.
- Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß die Temperaturmessung durch eine Infrarotkamera, die mit einer Linearführung ausgestattet ist, traversierend über die gesamte Breite der Rolle erfolgt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß als Temperaturmeßeinrichtung eine Infrarotkamera mit einer Auflösegenauigkeit von wenigstens 0,2 °C eingesetzt wird.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4412075 | 1994-04-08 | ||
DE4412075 | 1994-04-08 | ||
DE4442154 | 1994-11-26 | ||
DE4442154A DE4442154A1 (de) | 1994-04-08 | 1994-11-26 | Verfahren zum Einleiten eines vorzeitigen Rollenwechsels |
PCT/EP1995/001282 WO1995027676A1 (de) | 1994-04-08 | 1995-04-07 | Verfahren zum einleiten eines vorzeitigen rollenwechsels |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0754159A1 EP0754159A1 (de) | 1997-01-22 |
EP0754159B1 true EP0754159B1 (de) | 1998-08-19 |
Family
ID=25935448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95915861A Expired - Lifetime EP0754159B1 (de) | 1994-04-08 | 1995-04-07 | Verfahren zum einleiten eines vorzeitigen rollenwechsels |
Country Status (9)
Country | Link |
---|---|
US (1) | US5769353A (de) |
EP (1) | EP0754159B1 (de) |
AT (1) | ATE169885T1 (de) |
CA (1) | CA2187179C (de) |
DK (1) | DK0754159T3 (de) |
ES (1) | ES2119427T3 (de) |
FI (1) | FI963941A0 (de) |
NO (1) | NO306337B1 (de) |
WO (1) | WO1995027676A1 (de) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6330024B1 (en) * | 1996-09-05 | 2001-12-11 | The Goodyear Tire & Rubber Company | System and method for controlling the size of material banks in calenders, mills, and feed mills |
DE19653814A1 (de) * | 1996-12-21 | 1998-06-25 | Koenig & Bauer Albert Ag | Vorratsbahnrolle |
FI108635B (fi) * | 1997-06-30 | 2002-02-28 | Metso Paper Inc | Menetelmä rullanmuodostuksen laadun määrittämiseksi ja rullanmuodostuksen ohjaamiseksi |
US6089498A (en) * | 1998-06-26 | 2000-07-18 | Sticht; Walter | Monitoring means for an end of a thread-like material wound on a supply coil and process for this |
DE102004020302B3 (de) * | 2004-04-26 | 2005-08-18 | Koenig & Bauer Ag | Temperaturüberwachung in einer Maschine |
US20110035041A1 (en) * | 2009-08-06 | 2011-02-10 | Habakus Stephen J | Systems and methods for feed control of rolled stock raw materials |
DE102010016055A1 (de) * | 2010-03-22 | 2011-09-22 | Krones Ag | Vorrichtung zur Kontrolle von Spulen mit aufgewickeltem Folienmaterial |
EP2787486A1 (de) * | 2013-04-04 | 2014-10-08 | Océ-Technologies B.V. | Verfahren zur Schätzung der Menge eines nichtverbrauchten Teils eines Verbrauchsprodukts |
CN110100149B (zh) * | 2016-12-27 | 2021-08-24 | 索尼公司 | 勘测标记、图像处理装置、图像处理方法和程序 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2749993B2 (ja) * | 1990-11-27 | 1998-05-13 | 三菱重工業株式会社 | 帯状物の破断検出装置 |
IT1249668B (it) * | 1991-06-20 | 1995-03-09 | Cavanna Spa | Unita' per l'erogazione di materiale in foglio, ad esempio per l`erogazione di fogli di cartone o cartoncino in macchine confezionatrici automatiche. |
DE69326978T2 (de) * | 1992-07-18 | 2001-04-26 | Barmag Barmer Maschf | Verfahren zur Herstellung und/oder Behandlung sowie Aufwicklung eines endlose Materials aus thermopastischem Kunststoff mit Ausgabe eines Qualitätssignals sowie Aufnahmevorrichtung |
-
1995
- 1995-04-07 CA CA002187179A patent/CA2187179C/en not_active Expired - Fee Related
- 1995-04-07 WO PCT/EP1995/001282 patent/WO1995027676A1/de active IP Right Grant
- 1995-04-07 DK DK95915861T patent/DK0754159T3/da active
- 1995-04-07 ES ES95915861T patent/ES2119427T3/es not_active Expired - Lifetime
- 1995-04-07 AT AT95915861T patent/ATE169885T1/de not_active IP Right Cessation
- 1995-04-07 EP EP95915861A patent/EP0754159B1/de not_active Expired - Lifetime
- 1995-04-07 US US08/722,114 patent/US5769353A/en not_active Expired - Fee Related
-
1996
- 1996-10-02 FI FI963941A patent/FI963941A0/fi not_active Application Discontinuation
- 1996-10-02 NO NO964170A patent/NO306337B1/no unknown
Non-Patent Citations (1)
Title |
---|
PAPIER, DAS, Bd. 45, Nr. 10a, Oktober 1991 DARMSTADT DE, Seiten v73-v78, H.H. JÜHE 'Praxiserfahrungen bei der Herstellung breiter Tiefdruckrollen mit grossem Durchmesser' in der Anmeldung erwähnt * |
Also Published As
Publication number | Publication date |
---|---|
CA2187179A1 (en) | 1995-10-19 |
DK0754159T3 (da) | 1998-11-16 |
FI963941A (fi) | 1996-10-02 |
FI963941A0 (fi) | 1996-10-02 |
EP0754159A1 (de) | 1997-01-22 |
ATE169885T1 (de) | 1998-09-15 |
WO1995027676A1 (de) | 1995-10-19 |
NO306337B1 (no) | 1999-10-25 |
NO964170L (no) | 1996-10-02 |
US5769353A (en) | 1998-06-23 |
CA2187179C (en) | 2000-06-20 |
ES2119427T3 (es) | 1998-10-01 |
NO964170D0 (no) | 1996-10-02 |
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