EP1611961B1 - Bandbeschichtungseinrichtung - Google Patents

Bandbeschichtungseinrichtung Download PDF

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Publication number
EP1611961B1
EP1611961B1 EP05105489A EP05105489A EP1611961B1 EP 1611961 B1 EP1611961 B1 EP 1611961B1 EP 05105489 A EP05105489 A EP 05105489A EP 05105489 A EP05105489 A EP 05105489A EP 1611961 B1 EP1611961 B1 EP 1611961B1
Authority
EP
European Patent Office
Prior art keywords
coating
roller
force
reaction force
actual value
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.)
Active
Application number
EP05105489A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1611961A3 (de
EP1611961A2 (de
Inventor
Andreas Ing. Viehböck
Horst Ing. Dussing
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Vai Metals Technologies GmbH
Original Assignee
Siemens VAI Metals Technologies GmbH and Co
Siemens VAI Metals Technologies GmbH Austria
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens VAI Metals Technologies GmbH and Co, Siemens VAI Metals Technologies GmbH Austria filed Critical Siemens VAI Metals Technologies GmbH and Co
Priority to PL05105489T priority Critical patent/PL1611961T3/pl
Publication of EP1611961A2 publication Critical patent/EP1611961A2/de
Publication of EP1611961A3 publication Critical patent/EP1611961A3/de
Application granted granted Critical
Publication of EP1611961B1 publication Critical patent/EP1611961B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
    • B05C1/0878—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work responsive to the pressure applied between two rollers, e.g. between the coating roller and a backing roller or between the coating roller and a dosing roller
    • 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
    • B05C1/0826—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 the work being a web or sheets
    • B05C1/083—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 the work being a web or sheets being passed between the coating roller and one or more backing 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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • 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
    • B05C1/0813—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 characterised by means for supplying liquid or other fluent material to the roller
    • 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
    • B05C1/0826—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 the work being a web or sheets
    • B05C1/0834—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 the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers

Definitions

  • the invention relates to a method for applying a coating agent having a predetermined layer thickness to a moving metal strip.
  • a strip coater is at least two support carriages independent of one another, each carrying carriage carrying a coating roller.
  • An adjusting device is used for a coating roller supported on a support carriage in a belt coater for applying a coating agent to a moving metal belt in a predetermined layer thickness with high control accuracy and the use of this adjustment device for compensating for layer thickness variations caused by varying conditions in the application process, e.g. Roundness deviation, games, etc., on a coating roll.
  • a belt coating device immersed dipping roller in a coating agent, which is located in a reservoir, and takes on the rotational movement continuously coating agent.
  • the dipping roller is set against an intermediate roller with a predetermined contact force and transmits a certain amount of the coating agent to the intermediate roller depending on the setting force and other influencing factors (for example the flowability of the coating agent).
  • the coating agent is transferred during the mutual unwinding of the intermediate roll on an applicator roll, wherein the intermediate roller is pressed with a predetermined contact force to the applicator roll.
  • the application roller is in turn employed to a continuously moving metal strip and transfers the coating agent in a certain layer thickness on this.
  • the applicator role can also be firmly positioned on a support frame of the coil coating device.
  • a belt coater with two co-acting coating rollers, a dipping roller and an applicator roll is also from the US-A 5,413,806 known, in which the employment of the application roller to the metal strip, or the employment of the dipping roller to the application roller by hydraulic actuators.
  • the adjustment of the layer thickness of the coating agent on the metal strip takes place here via the regulation of the contact pressure or the contact force between the application roller and the dipping roller.
  • the object of the present invention is therefore to avoid these disadvantages and difficulties of the known prior art and to propose a belt coating device with an adjusting device and a method for applying a coating agent with a predetermined layer thickness to a metal strip, by the application of a coating agent at conventional commercial coating speeds much more uniform and within narrower tolerance ranges than previously possible. Furthermore, the quality of the coated metal strip should be achieved at high coating speed by balancing out any resulting force fluctuations, for example caused by roll eccentricity, hardness differences in the roll coating and the like.
  • the drive device comprises at least one hydraulic setting cylinder formed by a cylinder-piston unit, a valve plate and a pressure medium control unit, preferably at least one servo valve and the measuring devices comprise a force or pressure measuring device and / or a displacement measuring device.
  • the pressure medium control unit may also comprise at least one proportional valve. Due to the design of the adjustment as a compact unit, long hydraulic control lines, as they were previously used between a hydraulic control block and the adjusting cylinder on the frame construction of the band stacker. The now still remaining within the compact assembly hydraulic control lines are essentially limited to through holes for the hydraulic fluid between servo valves and valve plate and between the valve plate and hydraulic adjusting cylinder. The substantially reduced pressure losses thereby enable a substantial increase in the control accuracy of the contact force between the applicator roll and the further coating roll directly in contact with it.
  • each support tab of the support carriage is associated with an adjustment of the same type according to the invention.
  • Each of these adjusting devices comprises a hydraulic cylinder on which control valves and sensors are constructed directly.
  • This system allows the setting of a uniform contact force over the longitudinal extent of the coating roll and thus a uniform layer thickness of the coating agent over the bandwidth.
  • the paint layer thickness can be regulated in a closed loop.
  • a major advantage of this unit is the minimization of disturbances in the control loop by the elimination of connecting hydraulic control lines and thus resulting vibration influences on the control loop.
  • An arrangement of a force-measuring device for measuring the setting forces which is preferred from a constructive and metrological point of view, results if the hydraulic setting cylinder comprises a piston rod which is connected to the carrier carriage of the respective coating roller via a connecting element and the force measuring device for detecting the reaction force of the respective coating roller in this connecting element , is preferably arranged on the piston rod.
  • the connecting element is expediently designed as a joint, whereby additional clamping forces influencing the measurement results are avoided, and the force measuring device is for detecting the reaction force of the respective coating roller arranged in this joint on the piston rod.
  • the force measuring device is preferably formed by a load cell.
  • a displacement measuring device is expediently integrated or arranged externally in the hydraulic setting cylinder and permits position detection and position control of the respective coating roller relative to the metal strip or relative to a further coating roller or relative to a belt deflection roller in the belt coating device.
  • the path measuring device is used to control the product-dependent operating position (for example the operating position as a function of the strip thickness) of the respective coating roller.
  • the angular position of the coating roller is additionally detected by measurement, wherein in the arithmetic unit periodically recurring setpoint deviations of the reaction force, in particular with the rotational frequency of the coating role correlating, constantly recurring setpoint deviations are determined and in response to these continuously recurring setpoint deviations corresponding to Angular position of the coating roll a the actual value curve this reaction force gleichmä touchdes correction signal to an adjustment can be supplied.
  • This allows periodic fluctuations in the reaction force, which occur for example due to eccentricity of the coating roll, to be filtered out and counteracted in a targeted manner by means of a corrected setting force coordinated therewith.
  • An advantageous embodiment of the method is that periodically recurring setpoint deviations of the reaction force already before the beginning of Applying a coating agent are detected and at least at the beginning of the application of a coating agent a the actual value curve of this reaction force gleichmä touchdes correction signal is supplied to an adjustment.
  • This makes it possible to determine the current actual state of the characterizing characteristics of a coating system, such as hardness differences in the roller coating, but also roundness of the coating rolls or games in the system, before the coating process and specify the starting unit via the computing unit (controller). These parameters are determined repeatedly during the coating process at intervals and transmitted via appropriate correction signals to the adjustment.
  • FIG Fig. 1 A possible embodiment of a coil coating device for double-sided coating of a metal strip with a colored lacquer is shown in FIG Fig. 1 illustrated schematically in a sectional view.
  • a guide roller 2 is rotatably mounted in a firmly anchored on a foundation central machine frame 1.
  • the metal strip 3 to be coated is guided under strip tension around the deflection roller 2 to a winding station 5 and, in successive steps, the paint application is carried out on the upper side and the lower side of the metal strip.
  • a support carriage 7 is slidably supported on obliquely extending longitudinal guides 8 in the arrow direction. The sliding movement takes place by means of an adjusting device 9, which is coupled to a pivot 10 with the support carriage 7 and which is fixed in a bracket 11 on the upper side frame 6 stationary.
  • an adjusting device 9 which is coupled to a pivot 10 with the support carriage 7 and which is fixed in a bracket 11 on the upper side frame 6 stationary.
  • On the support carriage 7 designed as an application roller 12 coating roller 13 is rotatable in support bearings 14 supported, wherein each of the arranged at the ends of the application roller support bearing 14 is mounted on a respective support bracket 15 of the support carriage 7 and each support bracket 15 is associated with an adjustment 9.
  • the applicator roll 12 can be adjusted in a controlled manner, taking into account the strip thickness of the metal strip to be coated on this or to the deflection roller 2.
  • a further supporting carriage 16 is slidably supported on longitudinal guides 17, wherein the sliding movement takes place with an adjusting device 18 which is coupled to a pivot 19 with the support carriage 16 and which is fixed in a bracket 20 on the support carriage 7 fixed thereto.
  • the support carriage 16 carries a rotatably supported in support bearings 21 coating roller 22, which is designed as a dipping roller 23 and immersed in a coating agent container 24, in which, for example, color varnish is.
  • the basic structure of the support carriage 16 corresponds to that of the support carriage 7.
  • the dipping roller 23 can be adjusted in a force-controlled manner to the application roller 12.
  • a further support carriage 25 is longitudinally displaceably supported on longitudinal guides 26, wherein the sliding movement takes place with an adjusting device 27 which is coupled to a pivot 28 with the support carriage 25 and which is fixed to a bracket 29 on the support carriage 16 fixed thereto.
  • the support carriage 25 carries a rotatably supported in support bearings 21 coating roll 30, which is designed as a dossier 31.
  • the basic structure of the support carriage 25 corresponds to that of the support carriage 16 or 7. With the adjusting device 27, the dossier roller 31 is force-controlled pressed against the dipping roller 23 and stripped of the dipping roller excess amount of paint again.
  • a coating roller 35 is rotatably supported in support bearings 36, wherein the support bearings 36 are firmly anchored on the lower side frame 34.
  • the coating roller 35 is in this case set in a position in which the metal strip to be coated is pressed against the coating roll with a contact force as a function of the strip tension.
  • a support carriage 37 is slidably supported on obliquely extending longitudinal guides 38 in the arrow direction.
  • the sliding movement takes place with an adjusting device 39, which is coupled to a pivot 40 with the support carriage 37 and which is fixed in a bracket 41 on the lower frame 34 fixed.
  • the support carriage 37 carries a support roller 42 rotatably supported coating roller 43, which is formed as a dipping roller 44 and immersed in a coating agent container 45, in which, for example, color varnish is.
  • the basic structure of the support carriage 37 corresponds for example to that of the support carriage 7.
  • the adjustment device 39 the dipping roller 23 can be adjusted in a force-controlled manner to the coating roller 35.
  • a lifting roller 48 is rotatably and liftably supported in one of a pressure medium cylinder 49 actuated pivot bracket 50.
  • the metal strip is raised so far that the band weld the applicator roll 35 can pass without contact.
  • the support carriage 7 is briefly withdrawn in the course of a band weld and employed again. This avoids damage to the sensitive surface of the application rollers.
  • a pressure medium control unit 57 forming servo valves are arranged, with which the movement of the reciprocating piston, not shown in the adjusting cylinder 55 is controlled. Only transfer channels for the hydraulic oil are provided between the adjusting cylinder, the valve plate and the servo valves of the pressure medium control unit and thus reduce the length of the hydraulic control lines to a minimum.
  • This configured as a hinge connecting element can either a pivoting movement in a plane or a pivoting movement in two planes or spatially.
  • a force measuring device 59 is positioned, with which the contact force of the respective coating roller can be measured.
  • a force measuring device a pressure cell is used.
  • Anstellzylinder 55 a calibrated to the piston position displacement measuring device 60 is further grown.
  • the force measuring device consists in a pressure measuring cell.
  • the servo valve 57, the force measuring device 59 and the path measuring device 60 are connected via data lines with a central rich unit 61, from which the movements are coordinated and regulated at the coating device.
  • the adjustment of the operating position of the individual coating rolls is carried out in a regulated manner, incorporating the measured values of the displacement measuring devices.
  • the coating thickness is kept largely constant by force control, wherein in particular the contact force between applicator rolls and dipping roll is measured continuously and these measured values are taken into account taking into account other characteristic values of the coating composition or measured values of an additional layer thickness measurement.
  • Corresponding control signals are given by the arithmetic unit to the servo valve.
  • the increased control accuracy allows a faster response to short-term force variations caused by the coating rolls.
  • cyclic force fluctuations which are caused by roller eccentricity, hardness differences in the roller coating, and the like, lead to deviations in the desired layer thickness of the coating, thus cyclically recurring layer thickness variations.

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  • Coating Apparatus (AREA)
EP05105489A 2004-07-01 2005-06-21 Bandbeschichtungseinrichtung Active EP1611961B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05105489T PL1611961T3 (pl) 2004-07-01 2005-06-21 Urządzenie do powlekania taśmy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0111504A AT500487B1 (de) 2004-07-01 2004-07-01 Bandbeschichtungseinrichtung

Publications (3)

Publication Number Publication Date
EP1611961A2 EP1611961A2 (de) 2006-01-04
EP1611961A3 EP1611961A3 (de) 2008-11-12
EP1611961B1 true EP1611961B1 (de) 2013-02-27

Family

ID=34981740

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05105489A Active EP1611961B1 (de) 2004-07-01 2005-06-21 Bandbeschichtungseinrichtung

Country Status (6)

Country Link
EP (1) EP1611961B1 (zh)
CN (2) CN101502824A (zh)
AT (1) AT500487B1 (zh)
ES (1) ES2412958T3 (zh)
PL (1) PL1611961T3 (zh)
RU (1) RU2380170C2 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210685A1 (de) * 2014-11-14 2016-05-19 Sms Group Gmbh Anlage zum zumindest einseitigen Beschichten eines bandförmigen Substrats

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20060534A1 (it) * 2006-03-23 2007-09-24 Techint Spa Macchina semplificata per l'applicaszione continua di prodotti di protezione su un nastro metallico
CN102847654B (zh) * 2012-09-28 2014-10-29 汕头市依明机械股份有限公司 计量辊与涂布辊间隙自动调节装置和方法
TWM490914U (zh) * 2014-07-31 2014-12-01 Sheng-Fu Wang 塗佈機之滾輪夾合間隙補正裝置
CN108716882B (zh) * 2018-05-10 2021-07-02 蒋祥初 一种包覆机的维修检测设备

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
JPS567656A (en) * 1979-06-29 1981-01-26 Fumio Murayama Painting apparatus for hot rolled steel plate coil
JPS6056553B2 (ja) * 1981-10-15 1985-12-10 住友重機械工業株式会社 連続塗装機
JPS61283373A (ja) * 1985-06-06 1986-12-13 Rozai Kogyo Kaisha Ltd ロ−ル式古装機の塗膜厚制御装置
CH672082A5 (zh) * 1988-07-16 1989-10-31 Guenther Alich
JP2715389B2 (ja) * 1988-10-07 1998-02-18 大日本印刷株式会社 ロール間接触圧調整装置
US5413806A (en) * 1993-02-01 1995-05-09 Hunter Engineering Company, Inc. Strip coating machine with thickness control
US5743964A (en) * 1995-01-24 1998-04-28 Fata Hunter, Inc. Roll coating system
EP0736331B1 (de) * 1995-04-07 2002-10-16 Ltg Lufttechnische Gmbh Einstelleinrichtung für auf den Lackierzylinder einer Lackiermaschine ausgeübte Pressdrücke

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015210685A1 (de) * 2014-11-14 2016-05-19 Sms Group Gmbh Anlage zum zumindest einseitigen Beschichten eines bandförmigen Substrats

Also Published As

Publication number Publication date
AT500487B1 (de) 2006-01-15
EP1611961A3 (de) 2008-11-12
PL1611961T3 (pl) 2013-08-30
CN101502824A (zh) 2009-08-12
RU2005120488A (ru) 2007-01-10
EP1611961A2 (de) 2006-01-04
AT500487A4 (de) 2006-01-15
ES2412958T3 (es) 2013-07-12
RU2380170C2 (ru) 2010-01-27
CN100471581C (zh) 2009-03-25
CN1714942A (zh) 2006-01-04

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