EP2981647A1 - Filmpresse - Google Patents
FilmpresseInfo
- Publication number
- EP2981647A1 EP2981647A1 EP14713094.2A EP14713094A EP2981647A1 EP 2981647 A1 EP2981647 A1 EP 2981647A1 EP 14713094 A EP14713094 A EP 14713094A EP 2981647 A1 EP2981647 A1 EP 2981647A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nip
- film
- applicator roll
- fibrous web
- coating medium
- 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
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/28—Processes for applying liquids or other fluent materials performed by transfer from the surfaces of elements carrying the liquid or other fluent material, e.g. brushes, pads, rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H19/00—Coated paper; Coating material
- D21H19/36—Coatings with pigments
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
- D21H23/58—Details thereof, e.g. surface characteristics, peripheral speed
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/78—Controlling or regulating not limited to any particular process or apparatus
Definitions
- the invention relates to a film applicator for one or two-sided application of a liquid or pasty coating medium on a fibrous web, in particular paper or board web according to the preamble of patent claim 1 and a method according to the preamble of claim 13.
- the object is achieved by a film applicator with the features of claim 1 and the method with the features of claims 13 and 17th
- the solution according to the invention is characterized by its simplicity, as for example in a film applicator for only one-sided application of coating medium on a fibrous web hit only reliably by the embedded in elastic relation of the applicator roll sensors sensors on the pressure distribution in both relevant for the reliable coating nips can be.
- coating not only the application of coating color on the fibrous web, but any job of a pigment-containing Mixture and / or a mixture for sizing, such as, for example, starchy mixture, to be understood on the fibrous web.
- an evaluation unit communicating with the pressure sensors and a display unit communicating with the evaluation unit are provided, wherein the signals coming from the pressure sensors are transmitted to the evaluation unit and further processed in the evaluation unit such that they are used as the pressure profile of the first and the first second nips can be visually displayed by means of the display unit.
- the pressure profiles of the first and the second nips it is conceivable, in particular, for the pressure profiles of the first and the second nips to be displayed on one side of the display device, for example in the same graph.
- pressure profile (s) Due to the visual representation of the pressure signals as pressure profile (s) it is possible for a machine operator to monitor at a glance both the film formation on the applicator roll and the transfer of the film from the applicator roll to the fibrous web and to intervene in case of deviations from the desired value.
- the evaluation unit communicates with an acoustic signal generator which, when the pressure values in the first and / or second nip deviate, emits an acoustic signal characteristic of the respective nip in order to inform the machine operator about possible problems in the application process.
- an acoustic signal generator which, when the pressure values in the first and / or second nip deviate, emits an acoustic signal characteristic of the respective nip in order to inform the machine operator about possible problems in the application process.
- the acoustic signals of the different nips may have different pitches. So then the machine operator can decide which signal an immediate intervention is required and not, depending on which nip for the result in the concrete production process is particularly critical.
- both rolls of the roll pair are applicator rolls, so that the fibrous web is simultaneously coated on both sides with the coating medium by the thus executed film applicator.
- each of the two applicator rollers for the respective provision of a film of the coating medium is assigned in each case an application device and a doctor blade element forming a second nip with the respective applicator roll such that the coating medium present in the form of a film on the one applicator roll of the one applicator roll in the second nip one side of the fibrous web is transferred while the coating medium present on the other applicator roll in the form of a film is transferred from the other applicator roll in the second nip to the other side of the fibrous web.
- pressure sensors communicating with the evaluation unit are preferably embedded in the elastic relationship between the two applicator rollers, which are arranged side by side in the cross-machine direction, by means of which the pressure profile of at least one second nip, in particular of the second nip, and of the first nip, which adjusts itself in the cross-machine direction, is determined.
- composition of the coating medium applied to one side of the fibrous web need not necessarily be the same as the composition of the coating medium applied to the other side of the fibrous web.
- a further preferred embodiment of the invention provides that at least one of the applicator rollers, in particular both applicator rollers in the case of coating on both sides, has a signal transmitter communicating with the evaluation unit or have, which outputs signals characteristic of the rotational position of the applicator roll to the evaluation unit. From this, the evaluation unit can ascertain, in particular, an association of the signals of the pressure sensors during the passage of the pressure sensor (s) through the first and the second nips.
- the film applicator is operated such that a smaller line force is measured by the pressure sensors in the second nip than in the first nip.
- the line force measured in the second nip is at least a factor of 10, in particular at least a factor of 15 smaller than the line force measured in the first nip.
- the pressure sensors used are in this case designed in particular such that a line force in the range of 0.01 kN / m to 10 kN / m and in the first nip a line force in the range of 50 kN / m to 200 kN / m can be determined by these in the second nip.
- the line force measured by means of the pressure sensors in the second nip can be between 0.5 kN / m and 5 kN / m. If the doctor element is designed, for example, as a doctor bar, the force measured by the pressure sensors in the second nip can be between 0.01 kN / m and 1 kN / m.
- the pressure sensors are fiber optic sensors, in particular Bragg grating sensors.
- Fiber-optic pressure sensors are particularly -bspw. compared to Piezosensoren- by their small dimensions and their very high signal sensitivity. With fiber optic sensors, therefore, extremely small line forces can be measured. Fiber-optic sensors are also characterized by an extremely wide range in signal sensitivity, so that with these both very small and very high line forces can be measured.
- the one and / or other applicator roll has a roll core, the lateral surface of which is surrounded by the reference, wherein the reference a can be brought into contact with the coating medium functional layer and viewed in the radial direction of the reference between the functional layer and the roll core arranged connecting layer, wherein the pressure sensors are arranged in the connecting layer or in the boundary region between the functional layer and the connecting layer.
- the bonding layer is harder than the functional layer, in particular by a factor of 10 to 100 harder than the functional layer.
- Interface 1 Interface 1. Within 1. Interface 1. Within 1.
- all pressure sensors of at least one application roller are arranged along a straight line, wherein the straight line extends in particular parallel to the axis of rotation of the roller.
- the pressure sensors are each arranged along a straight line, in particular along a straight line parallel to the axis of rotation of the respective roller.
- the doctor element is, for example, designed as a doctor bar or as a doctor blade, so that the doctor bar or the doctor blade together with the lateral surface of the applicator roll forms the second nip.
- a method for applying a liquid or pasty coating medium on at least one side of a moving fibrous web, in particular paper or board web, in which the coating medium on an applicator roll in front of a second nip formed by the applicator roll and a doctor element applied in excess and again partially removed to form a film of the coating medium on the applicator roll by the doctor element in the second nip and in which the film is subsequently transferred in a first nip of the applicator roll on a coming into contact with the side of the fibrous web.
- the method according to the invention is characterized in that the pressure profile which is established in the cross-machine direction in the first nip and in the second nip is determined by means of pressure sensors embedded in relation to the applicator roll.
- the pressure profile in the first and second nip is preferably determined by means of pressure sensors embedded in relation to the applicator roll and arranged side by side in the cross-machine direction, which communicate with an evaluation unit.
- the fibrous web is simultaneously coated on both sides with the coating medium by means of two provided by a pair of rollers and between the first nip forming rollers, wherein the coating medium on the respective applicator roll in front of a respective applicator roll and one of these associated doctor element second Nip applied in excess and for the formation of a film of the coating medium on the respective applicator roll by the respectively associated doctor element in the respective second nip again partially removed and the film subsequently in the first nip of the respective applicator roll on the respective coming into contact with one side of the Fibrous web is transmitted, wherein in the respective first nip and in the second nip in the cross-machine direction adjusting pressure profile embedded in the reference of the respective applicator roll pressure sensor oren is determined.
- the pressure profile is determined before and / or during the application of the coating medium to the fibrous web.
- the amount of coating can be precisely adjusted in advance without the production of rejects.
- the rejection rate is significantly reduced, especially in the case of film applicators working online, ie integrated into the production line of the paper or board machine, since the paper or board machine can go into production directly after start-up without any paper or board web, for example must be driven to the exact setting of the order amount in the pulper.
- a method is proposed for producing a coated fibrous web, in particular paper, board or tissue web, with the following steps:
- At least one application of a coating medium takes place on-line in the machine and the production of the fibrous web takes place at a machine speed of 1200 meters / minute or more, in particular at a machine speed of 1500 meters / minute or more.
- the fibrous web is a printable fibrous web and the at least one application is applied to one in which a pigment-containing coating medium is applied to the fibrous web.
- FIG. 1 shows a film applicator according to the invention in cross-section
- Figure 2 signals from a sensor when passing through the first and the second nip
- FIG. 1 shows an inventive film applicator 1 for applying a pasty or fluid coating medium 8 on a moving fibrous web 2, in particular paper or board web in cross section.
- the film applicator 1 shown in FIG. 1 has a first nip 3 through which the fibrous web 2 is guided and at the same time is coated on both sides with the coating medium during the passage.
- the first nip 3 is formed by two juxtaposed rollers 4, 5.
- both rollers 4, 5 of the roller pair are application rollers, so that the fibrous web 2 is simultaneously coated on both sides 6, 7 with a coating medium 8 by the thus executed film applicator.
- each of the two applicator rollers 4, 5 for respectively providing the coating medium in the form of a film 9, 9 ' is an applicator 10, 10 ' and a second nip 1 with the respective applicator roller 4, 5 1, 1 'forming doctor blade element 12, 12 ' in such a way that the coating medium 8 present in the form of a film 9 on one application roller 4 is transferred from the one application roller 4 in the second nip 3 to the one side 6 of the fibrous web 2, while the is transferred to the other application roller 5 in the form of a film 9 ' present coating medium 8 of the other applicator roll 5 in the second nip 3 on the other side 7 of the fibrous web 2.
- a double-sided coated fibrous web 2 leaves the first nip 3.
- an application roller 10, 10 ' associated with an applicator roller 4, 5 and the doctor element 12, 12 ' are arranged on a common support beam 13, 13 ' . Furthermore, in the present case, each of the doctor elements 12, 12 'is designed as a doctor bar.
- a plurality of pressure sensors 14, 14 ' arranged side by side in the cross-machine direction are embedded in the elastic covering (each of which only one pressure sensor 14, 14 ' can be seen in FIG. 1), by means of which the pressure profile in the cross-machine direction in the first nip 3 and in the two second nips 1 1, 1 1 ' can be determined.
- the pressure sensors 14, 14 ' are designed as fiber-optic sensors, in particular Bragg grating sensors.
- the pressure sensors 14, 14 ' it would be but also possible to form the pressure sensors 14, 14 ' as piezoelectric sensors.
- the line force measured by the pressure sensors 14, 14 ' in the second nips 11, 11 is the line force measured in the first nip 3, wherein the pressure sensors 14, 14 ' in the second nip 1 1 1, 1 1 ' a line force in the range of 5kN / m to 50kN / m and in the first nip a line force in the range of 60kN / m to 200kN / m is determined.
- Each of the applicator rollers 4, 5 has a roller core 20, 20 ' , the lateral surface of which is surrounded by the cover, the cover being a functional layer 21, 21 ' which can be brought into contact with the coating medium 8 and a functional layer 21 viewed in the radial direction of the cover , 2 ⁇ and the roller core 20, 20 ' arranged connection layer 22, 22 ' , wherein the pressure sensors 14, 14 ' present in the interface between the functional layer 21, 21 ' and the connection layer 22, 22 ' are arranged.
- the functional layer 21, 21 ' is made of polyurethane with a hardness in the region of 80 Shore A
- the connecting layer 22, 22 ' is a fiber composite layer of epoxy resin and glass fibers with a hardness of 90 Shore D.
- the connecting layer 22, 22 ' harder than the functional layer 21, 21 ' .
- each of the pressure sensors When the pressure sensors 14, 14 ' pass through the respective nip 3, 1 1, 1 ⁇ , each of the pressure sensors generates one or more signals corresponding to the pressure action in the nip, which signal is transmitted to an evaluation unit 15.
- the evaluation unit 15 In the present case, the evaluation unit 15 is arranged completely outside the application rollers 4, 5. But there are also designs in which parts of the evaluation are rotatably connected to the respective roller and other parts are arranged outside the roller, that are not rotatably connected to the respective roller. In the present case, the signals of the pressure sensors 14, 14 'are transmitted wirelessly to the evaluation unit.
- the signals coming from the pressure sensors 14, 14 ' are then further processed in the evaluation unit 15 in such a way that they are used as the pressure profile 16 of the first Nips and 17, 17 'of the two second nips 1 1, 1 1 ' by means of a display unit 18 are visually displayed.
- a signal transmitter 19, 19 ' communicating with the evaluation unit 15 is provided in each of the applicator rollers 4, 5, which outputs characteristic signals to the evaluation unit 15 for the rotational position of the respective applicator roller 4, from which the evaluation unit 15 determines an assignment of the signals of the pressure sensors 14, 14 ' to the passage of the respective pressure sensors 14, 14 ' through the first nip 3 and the respective second nip 1 1, 1 1 ' .
- the signal transmitters 19, 19 ' are designed according to the Hall sensor principle.
- FIG. 2 shows, for several revolutions of one of the application rollers 4, 5, the signals which are measured by the pressure sensors 14, 14 ' when passing through the first nip 3 and by one of the second nips 1 1, 1 ⁇ .
- the signals A are generated by the pressure sensors 14, 14 ' in their passage through the second nip 1 1
- the signals B are generated by the pressure sensors 14, 14 ' in their passage through the first nip 1 1.
- the line force at the pressure sensor 14, 14 ' is in this case proportional to the peak-to-peak values of the signals A, B of the pressure sensors 14, 14 ' shown in FIG.
- the German patent application no. 10 2012 206 689.6 the contents of which are fully incorporated into this application in this connection.
- FIG. 3 shows a machine for producing a coated fibrous web, in particular paper or board machine with a headbox 23, a Formierpartie 24, a press section 25, a drying cylinder 26 comprising drying section 27 and a plurality of applicators 1, both of which Filmhilstswerke corresponding to that in the figure 1 are shown.
- a method for producing a coated fibrous web 2 can be carried out as follows:
- the application of the coating medium 8 takes place on-line in the machine by means of both film applicators 1. Further, in the illustrated machine, the production of the fibrous web is performed at a machine speed of 1200 meters / minute or more, particularly at a machine speed of 1500 meters / minute or more.
Landscapes
- Coating Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013206091 | 2013-04-05 | ||
| PCT/EP2014/056045 WO2014161755A1 (de) | 2013-04-05 | 2014-03-26 | Filmpresse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2981647A1 true EP2981647A1 (de) | 2016-02-10 |
| EP2981647B1 EP2981647B1 (de) | 2018-12-05 |
Family
ID=50389431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14713094.2A Active EP2981647B1 (de) | 2013-04-05 | 2014-03-26 | Filmpresse |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20160038969A1 (de) |
| EP (1) | EP2981647B1 (de) |
| CN (1) | CN105121743B (de) |
| WO (1) | WO2014161755A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022063467A1 (de) * | 2020-09-22 | 2022-03-31 | Voith Patent Gmbh | Walze, beschichtungsvorrichtung und herstellungsverfahren |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9540769B2 (en) | 2013-03-11 | 2017-01-10 | International Paper Company | Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press |
| US10378980B2 (en) | 2014-05-02 | 2019-08-13 | International Paper Company | Method and system associated with a sensing roll and a mating roll for collecting roll data |
| US9797788B2 (en) | 2014-05-02 | 2017-10-24 | International Paper Company | Method and system associated with a sensing roll including pluralities of sensors and a mating roll for collecting roll data |
| US9804044B2 (en) | 2014-05-02 | 2017-10-31 | International Paper Company | Method and system associated with a sensing roll and a mating roll for collecting data including first and second sensor arrays |
| US9696226B2 (en) | 2015-06-10 | 2017-07-04 | International Paper Company | Count-based monitoring machine wires and felts |
| US9863827B2 (en) | 2015-06-10 | 2018-01-09 | International Paper Company | Monitoring machine wires and felts |
| US9677225B2 (en) * | 2015-06-10 | 2017-06-13 | International Paper Company | Monitoring applicator rods |
| US9534970B1 (en) | 2015-06-10 | 2017-01-03 | International Paper Company | Monitoring oscillating components |
| US10370795B2 (en) | 2015-06-10 | 2019-08-06 | International Paper Company | Monitoring applicator rods and applicator rod nips |
| US9816232B2 (en) | 2015-06-10 | 2017-11-14 | International Paper Company | Monitoring upstream machine wires and felts |
| CN108145938B (zh) * | 2017-12-12 | 2020-03-17 | 山东霞光实业有限公司 | 一种木塑玻璃压条包覆机及其调试方法 |
| FI128981B (en) | 2018-07-27 | 2021-04-30 | Voith Patent Gmbh | Method and apparatus for applying starch |
| US11701800B2 (en) * | 2019-01-04 | 2023-07-18 | Roller Labz, LLC | Systems and methods for reconditioning polymeric wheels |
| DE102019132446A1 (de) * | 2019-11-29 | 2021-06-02 | Voith Patent Gmbh | Beschichtung von Faserstoffbahnen |
| DE102023108252A1 (de) * | 2023-03-31 | 2024-10-02 | Voith Patent Gmbh | Maschine und Verfahren |
| CN116135333B (zh) * | 2023-04-18 | 2023-06-20 | 南通滨山纺织有限公司 | 一种织物表面涂层双向加工装置 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970564A (en) * | 1955-12-23 | 1961-02-07 | Champion Paper & Fibre Co | Apparatus for coating paper |
| US5462594A (en) * | 1990-04-19 | 1995-10-31 | Valmet Paper Machinery Inc. | Coating device for coating of a size-press roll, paper or board |
| FI91299C (fi) * | 1991-09-16 | 1994-06-10 | Valmet Paper Machinery Inc | Menetelmä ja päällystyslaite liimapuristimen telan, paperin tai kartongin päällystämiseksi |
| US5592875A (en) * | 1994-09-16 | 1997-01-14 | Stowe Woodward Licensco, Inc. | Roll having means for determining pressure distribution |
| DE4444779B4 (de) * | 1994-12-15 | 2005-08-04 | Voith Sulzer Papiermaschinen Gmbh | Vorrichtung zum Auftragen eines flüssigen oder pastösen Mediums auf eine laufende Materialbahn, insbesondere aus Papier oder Karton |
| US5562027A (en) * | 1995-02-16 | 1996-10-08 | Stowe Woodward Licensco, Inc. | Dynamic nip pressure and temperature sensing system |
| US5887517A (en) * | 1997-10-24 | 1999-03-30 | Beloit Technologies, Inc. | Multiple hardness roll cover |
| CA2279609C (en) * | 1998-08-06 | 2007-05-01 | Voith Sulzer Papiertechnik Patent Gmbh | Device to actively weaken undesirable vibrations in a rotating roll; device for treatment of a material web; specifically a paper or cardboard web |
| ATE394543T1 (de) * | 2001-05-23 | 2008-05-15 | Voith Patent Gmbh | Vorrichtung, verfahren und anordnung zum andrücken zweier aneinander annäherbarer achsparalleler walzen in einer einrichtung zur herstellung oder/und behandlung einer materialbahn |
| US20050261115A1 (en) * | 2004-05-14 | 2005-11-24 | Myers Bigel Sibley & Sajovec, P.A. | Industrial roll with piezoelectric sensors for detecting pressure |
| US20050285059A1 (en) * | 2004-06-24 | 2005-12-29 | Gerber Terry L | Apparatus and a method for detecting flatness defects of a web moving over a roller assembly |
| JP5684965B2 (ja) * | 2005-06-20 | 2015-03-18 | 大王製紙株式会社 | 塗工紙の製造方法 |
| DE102007026617A1 (de) * | 2007-06-08 | 2008-12-11 | Voith Patent Gmbh | Verfahren zum Aufbringen einer Doppelschicht |
| BRPI0822792B1 (pt) * | 2008-09-23 | 2019-04-16 | Voith Patent Gmbh | Rolo industrial com sistema sensor de cobertura do rolo ótico |
| DE202008014477U1 (de) * | 2008-10-31 | 2009-01-15 | Voith Patent Gmbh | Presswalze, Saugpresswalze, Tragwalze oder Tragtrommel |
| US8346501B2 (en) * | 2009-06-22 | 2013-01-01 | Stowe Woodward, L.L.C. | Industrial roll with sensors arranged to self-identify angular location |
| EP2678652A1 (de) * | 2011-02-25 | 2014-01-01 | Voith Patent GmbH | Papiermaschinen-walze mit faser-bragg-sensoren |
| US9540769B2 (en) * | 2013-03-11 | 2017-01-10 | International Paper Company | Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press |
-
2014
- 2014-03-26 CN CN201480019767.7A patent/CN105121743B/zh active Active
- 2014-03-26 EP EP14713094.2A patent/EP2981647B1/de active Active
- 2014-03-26 US US14/782,370 patent/US20160038969A1/en not_active Abandoned
- 2014-03-26 WO PCT/EP2014/056045 patent/WO2014161755A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014161755A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022063467A1 (de) * | 2020-09-22 | 2022-03-31 | Voith Patent Gmbh | Walze, beschichtungsvorrichtung und herstellungsverfahren |
Also Published As
| Publication number | Publication date |
|---|---|
| US20160038969A1 (en) | 2016-02-11 |
| WO2014161755A1 (de) | 2014-10-09 |
| CN105121743B (zh) | 2017-09-26 |
| CN105121743A (zh) | 2015-12-02 |
| EP2981647B1 (de) | 2018-12-05 |
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