EP0056704A2 - Vorrichtung und Verfahren zum Aufbringen eines Überzuges - Google Patents

Vorrichtung und Verfahren zum Aufbringen eines Überzuges Download PDF

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Publication number
EP0056704A2
EP0056704A2 EP82300160A EP82300160A EP0056704A2 EP 0056704 A2 EP0056704 A2 EP 0056704A2 EP 82300160 A EP82300160 A EP 82300160A EP 82300160 A EP82300160 A EP 82300160A EP 0056704 A2 EP0056704 A2 EP 0056704A2
Authority
EP
European Patent Office
Prior art keywords
wall
strip
article
coating material
dam
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
Application number
EP82300160A
Other languages
English (en)
French (fr)
Other versions
EP0056704A3 (en
EP0056704B1 (de
Inventor
Carl A. Wollam
J. Lynn Gailey
Alexander A. Chalmers
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.)
Rio Tinto Alcan International Ltd
Original Assignee
Alcan International Ltd Canada
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
Priority claimed from US06/226,705 external-priority patent/US4356216A/en
Priority claimed from US06/226,699 external-priority patent/US4387123A/en
Priority claimed from US06/226,697 external-priority patent/US4344990A/en
Application filed by Alcan International Ltd Canada filed Critical Alcan International Ltd Canada
Publication of EP0056704A2 publication Critical patent/EP0056704A2/de
Publication of EP0056704A3 publication Critical patent/EP0056704A3/en
Application granted granted Critical
Publication of EP0056704B1 publication Critical patent/EP0056704B1/de
Expired legal-status Critical Current

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Classifications

    • 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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • 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
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/18—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent material
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0266—Coating heads with slot-shaped outlet adjustable in length, e.g. for coating webs of different width
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • 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
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled
    • 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
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • 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
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • B05D1/265—Extrusion coatings
    • 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
    • B05D1/34—Applying different liquids or other fluent materials simultaneously
    • 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
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • 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
    • B05D2252/00—Sheets
    • B05D2252/02—Sheets of indefinite length

Definitions

  • This invention relates to coating processes and apparatus, and in particular to processes and apparatus for coating surfaces of strip articles of indeterminate length.
  • an initially wet, flowable coating material is applied to a surface of a substrate that is at least substantially impervious thereto, for covering the substrate surface with a continuous adherent coating layer.
  • One especially important application of the invention is the coating of metal strip with a protective and/or decorative layer of paint or the like, prior to cutting or forming of the strip into shingles, siding or soffit panels, building trim members, or other products.
  • Metal strip i.e. strips of sheet metal of indeterminate length, usually stored as coils
  • a wet coating material such as paint is applied to one or both majpr surfaces of the strip, and then through a zone where the coating is cured or dried with heat.
  • Known techniques for applying wet coating material to a strip surface include spraying, transfer from rolls, and deposit of the coating material on the strip surface immediately ahead of a doctor blade or dam which has the purpose of establishing a desired coating thickness.
  • the blade or dam has a thin edge extending transversely across and very slightly spaced from the surface to be coated; the deposited wet coating material puddles on the upstream side of the blade or dam and is carried thereunder in a thin layer on the moving surface.
  • An additional disadvantage of such conventional coating arrangements is the waste of coating material that occurs, e.g. through overflow, owing inter alia to shortcomings in the effectiveness of the metering action provided by these arrangements. Moreover, there is a tendency for air to be picked up in the coating material ahead of the doctor blade, and to become entrapped in the coating, especially at fast coating speeds.
  • a process for coating a major surface of a strip article of indeterminate length including the steps of continuously advancing the article longitudinally past a dam extending transversely of said major surface in adjacent spaced relation thereto while supplying a flowable liquid coating material to said major surface immediately ahead of said dam and, immediately beyond said dam, advancing said article longitudinally past a wall of extended length in the direction of strip advance and facing said major surface while uniformly restraining the strip against movement of said major surface away from said wall beyond a predetermined distance equal to a desired wet thickness of said coating material on said major surface.
  • the invention provides apparatus for forming a continuous adherent coating layer on a major surface of a strip article of indeterminate length, comprising means defining a path of advance of said article lengthwise of itself, including an extended wall facing said major surfaces of said article and so arranged that the advancing article moves longitudinally relative thereto, means at one end of said wall constituting a dam extending transversely of the path of article advance do as to be disposed in adjacent spaced relation to said major surface of the article, means for uniformly restraining said article against movement of said major surface away from said wall beyond a predetermined distance during advance of said article past said eall, and means for supplying a wet flowable coating material to said major surface ahead of said dam.
  • the means for thus restraining the strip may, for example, comprise a second wall spaced uniformly from the first-mentioned wall so as to define therewith a gap (through which the strip advances) equal in width to the sum of the strip thickness and the desired coating thickness.
  • the downstream end of the wall facing the coated strip surface (i.e. the end remote from the dam in the direction of strip advance) is preferably a sharp edge providing an abrupt surface discontinuity rather than a radiussed edge which could cause cavitation problems and resultant irregularities in the produced coating.
  • the downstream wall edge may be constituted as the intersection of the strip-facing wall surface with a surface (of the wall structure) facing downstream and lying in a plane oriented at an angle of at least about 90° to the direction of strip advance.
  • the dam at or constituting the upstream end of the wall have a radiussed or chamfered edge for leading the coating material onto the strip surface and gradually initiating the fluid pressure which, between the wall and the strip surface, provides the above-described hydroplaning effect. It is also frequently preferable that the body or pool of liquid coating material ahead of the dam be maintained under positive pressure.
  • the process and apparatus of the invention enable stripes and other variegated patterns of colours or shades to be achieved in the produced coating by supplying coating material of different colours or shades to different portions (spaced across the width of the strip) of a single continuous pool or puddle of the coating material extending along the inlet side of the dam, i.e. without employing any separators to isolate these different shades or colours in the pool.
  • the nature of the patterns produced is dependent on the locations and relative quantities of the different shades or colours thus supplied, and can be controllably varied as desired during the coating of a single continuous strip surface by varying one or more of these factors.
  • the invention in particular embodiments includes means fo effecting such variation.
  • the wall facing the coated surface of the strip may be an extended surface of a stationary plate past which the strip advances, an upstream portion of the plate being shaped to constitute the dam, although it will be understood that in a broad sense the requisite movement of the strip relative to this facing wall could be achieved by moving the wall along a stationary strip.
  • the means for restraining the strip against movement away from this wall may also be a wall constituted by a stationary plate. In some embodiments of the invention, however, this other wall is an endless surface moving in the same direction and at the same rate as the strip, so as to prevent abrasion.
  • the invention will be described as embodied-in a process for continuously coating one major surface 10 of a metal (e.g. aluminium) strip 11 of indeterminate length with a continuous layer 12 of an initially wet coating material, such as paint, extending over the entire strip surface.
  • a metal e.g. aluminium
  • an initially wet coating material such as paint
  • the strip is continuously advanced longitudinally (as from a supply coil 14) along a defined path past a locality 15 at which the wet paint is applied to the surface 10, and thence to a heating zone (not shown) where the coating is cured or dried.
  • the other major surface 16 of the strip can be coated before or after the described coating of the surface 10, or left uncoated. Once the coating of the strip is complete, it can be formed and cut into a desired product such as siding panels.
  • FIG. 1 The apparatus with which the process of the invention is performed is shown (by way of example) in Figure 1-as comprising a pair of rigid flat plates 18 and 20 fixedly mounted, in superposed facing uniformly spaced relation to each other, at a portion of the path of advance of the strip 11 at which the strip major surfaces are substantially horizontal with surface 10 facing upwardly, the plates 18 and 20 being respectively disposed above and below the strip so that the path of strip advance passes between them.
  • the upper plate 18 has an elongate reservoir cavity or trench 22 dimensioned to extend across the full width of the strip 11 and opening downwardly toward the upper surface 10, for confining a body or pool of liquid coating material such as paint in contact with the strip surface 10.
  • Paint is supplied to the cavity or trench 22 through a plurality of passages 24 opening downwardly through the upper surface of the plate 18 into the cavity at locations spaced along the length thereof, i.e. across the width of the strip 11.
  • the plate has a smooth, downwardly facing horizontal planar surface 26 that extends across the full width of the strip and also extends downstream from the cavity for a substantial distance in the direction of strip advance;
  • the lower plate 20 has a smooth upwardly-facing horizontal planar surface 28 also extending across the full width of the strip and longitudinally of the strip over at least the full extent of the upper plate surface 26.
  • the surfaces 26 and 28 respectively constitute the upper and lower walls of a gap 30 of extended length in the direction of strip advance. Since these surfaces 26 and 28 lie in parallel horizontal planes (and are thus spaced apart by a uniform distance at all points) the gap 30 is of uniform height.
  • the spacing between the two plate surfaces i.e. the height of gap 30
  • the spacing between the two plate surfaces is selected to be equal to the thickness of the strip 11 plus a desired wet thickness of coating layer on the strip surface 10, and is maintained at a fixed value during any given coating operation, although the spacing between the plates may be adjustable.
  • the internal surface 32 of the upper plate 18 which defines the downstream side of the reservoir cavity 22 constitutes a dam, extending transversely across the strip surface 10 at the inlet end of the gap 30 and retaining the coating material on its upstream side in the reservoir.
  • the locality 15 at which the coating material is applied to the strip surface 10 is the location of the reservoir cavity 22.
  • the surface 10 is progressively brought into contact with the pool of wet flowable coating material therein, across its full width.
  • the advancing movement of the strip draws coating material from the cavity on the strip surface 10 into the gap 30, i.e. into the space between the strip surface 10 and the facing gap wall 26, filling that space and forcing the strip against the other gap wall 28 notwithstanding any undulating or other deformation initially present in the strip.
  • the strip surface 10 is uniformly and continuously coated.
  • a single-colour coating is produced.
  • Striped or other desired pattern effects can be achieved by supplying paint of different colours or shades through the different passages.
  • the passages 24 are respectively located at the centrelines of longitudinal zones of equal width on the strip surface, and are all supplied with equal volumes of paint per unit time (in respectively different colours 1, 2 and 3)
  • the produced coating will be constituted of well-defined parallel stripes 36a, 36b, 36c of the different colours without significant blurring or blending between stripes, even though the cavity 22 is a single, continuous, undivided reservoir.
  • the stripes can be varied in relative width during the coating operation, and blended effects can be achieved, by varying the relative rates of feed of paint to the different passages. Thereby controllably varied colour patterns of longitudinal stripes or striations can readily and conveniently be produced on the coated surface.
  • the coating cavity 22 is machined across the width of the upper plate 18 and is provided with end plugs 40 for laterally enclosing the cavity to confine the liquid coating material therein.
  • the plates 18 and 20 are secured together by means of bolts 42 respectively located at each corner of the plates. Each bolt 42 is inserted downwardly through a hole in the top plate 18 and is threaded into the bottom plate 20; a helical spring 43 is disposed in surrounding relation to the shank of each bolt 42 between the plates and is under compression between the plates 18 and 20.
  • the bolts and springs serve to maintain the facing surfaces 26, 28 of the two plates (which, in this embodiment, are both highly polished planar surfaces) uniformly spaced apart over the full lateral and longitudinal extent of the gap 30, and to maintain that spacing fixed during any given coating operation while permitting adjustment of the spacing (for selection of a desired coating thickness) before the coating operation has begun.
  • bars 45 are bolted to both sides of the bottom plate 20 and project upwardly therefrom along the sides of the plate 18 to prevent relative lateral displacement of the plates.
  • the horizontal planar surface 28 of the lower plate 20 extends for some distance upstream of the coating cavity 22 and faces a horizontal planar surface portion 26a of the upper plate 18 ahead of cavity 22.
  • the spacing between the upstream portion of surface 28 and the surface 26a of plate 18 is equal to the spacing between surfaces 26 and 28; i.e. the surface 26a together with the portion of surface 28 subjacent thereto cooperatively define a gap 30a equal in height to gap 30 and having an extended length along the path of strip advance.
  • the width of the surfaces 26, 28 and 28a is between 20.0 and 20.4 cm for coating strip less than 20.0 cm wide, and the length of surface 26 (which, with surface 28, defines gap 30) is slightly less than 22.9 cm in the direction of strip travel.
  • The,length of surface 26a, which, with the subjacent upstream portion of surface 28, defines the gap 30a is about 2.9 cm along the path of strip travel.
  • the gap 30a is found to be of sufficiently extended length in the direction of strip advance to substantially achieve the beneficial results of uniformity of coating thickness and production of desired pattern effects.
  • the surface 32a of the cavity 22 opposite the previously described surface functions as the dam.
  • the dam surface 32 is radiussed to lead the liquid coating material into the strip and to provide, as the strip advances past the dam, progressive development of the fluid pressure which causes hydroplaning action (forcing the strip uniformly against the plate 20) within the gap between the plates; alternatively, the surface 32 may be chamfered.
  • the surface 26 of the plate 18 constitutes the wall facing the coated strip surface
  • the plate 20 constitutes the means for uniformly restraining the strip against movement more than a predetermined distance away from that wall.
  • the downstream end of the latter wall is a sharp edge 47 (Figure 3) formed by the intersection of surface 26 with a planar plate end surface 47a, shown as perpendicular to the direction of strip advance; more generally, the angle between the plane of surface 47a and the direction of strip advance is at least sufficient to avoid cavitation effects that could cause irregularities in the coating emerging from the gap 30.
  • the downstream end of the plate 18 could be shaped to provide a radiussed edge that would produce such cavitation.
  • the reservoir cavity 22 is kept completely filled with paint, under pressure, at a rate corresponding to the rate of withdrawal of paint from the cavity on the coated strip surface. In this way there can be no entrapment of air in the produced coating.
  • the strip surface to be coated be primed, i.e. with a primer coat applied prior to the coating operation.
  • inventions of the apparatus of the invention illustrated in Figures 6 to 15 incorporate various arrangements for creating desired pattern effects of different shades of colours in the produced coatings.
  • the illustrated apparatus comprises a top plate 50 and a bottom plate 52 having facing uniformly spaced extended horizontal surfaces cooperatively defining a gap 54 of extended length in the direction of strip advance represented by arrow 56.
  • the top and bottom plates are secured together by bolts 58, with helical springs 60 under compression surrounding their shanks, for maintaining the desired spacing between the plates while permitting adjustment of that spacing.
  • the top plate 50 is formed in two pieces 50a and 50b which cooperatively define an upwardly opening coating cavity or reservoir 62 extending transversely of the path of strip advance across the full width of the strip.
  • This coating cavity also opens downwardly onto the strip upper surface, through a relatively narrow opening 64 defined between the two top plate pieces 50a and 50b; the opening 64, which may, for example, be about 3mm wide, likewise extends across the full wifth of the strip surface to be coated so as to permit liquid coating material from the cavity 62 to flow downwardly into contact with the strip surface.
  • the generally vertical transverse surface 66 of plate portion 50b, constituting the downstream side of opening 64, serves as the dam for the coating material in this embodiment.
  • a dividing member 68 extends across the cavity 62 and projects downwardly into the opening 64, for separating the cavity into two sections or chambers both extending across the full width of the path of strip advance and respectively located upstream and downstream of the opening 64.
  • Member 68 is suspended from a rod 70 journalled in bearings 72 for rotation about an axis above and parallel to the long dimension of opening 64, i.e. to effect movement of the member 68 in the directions indicated by arrow 74.
  • the two chambers into which cavity 62 is divided by member 68 can be respectively filled with paint of different colours.
  • the colour of coating material delivered from cavity 62 to the strip surface can be varied by pivotal movement of the member 68 so as to produce a coating characterized by transverse bands of different shades or colours.
  • pivotal movement of the member 68 can alternately admit yellow and blue paints to the opening 64 for delivery onto the strip surface, producing alternating yellow and blue bands extending transversely of the long dimension of the strip being coated; and if the member 68 is moved to an intermediate position, both yellow and blue paints can be delivered to the strip surface at the opening 64, for blending (as the strip passes through gap 54) to produce a green band.
  • member 76 includes a vertical portion 78 which serves to divide the cavity into the two chambers and a flat base portion 80 overlying the floor of the cavity 62.
  • the base portion 80 has two parallel elongate slots 82 and 84 formed therein and separated by a median portion 86, slots 82 and 84 each being coextensive in length with the opening 64.
  • the top plate 50 and bottom plate 52 cooperatively defining a gap 54 of uniform height and extended length in the direction 56 of strip advance are generally similar in arrangement to the plates 50 and 52 of the embodiments of Figures 6 to 11.
  • the upper plate 50 formed in two parts, defines a coating cavity 62 communicating downwardly through an opening 64 with the surface of the strip to be coated, the downstream edge 66 of opening 64 constituting a dam.
  • the cavity 62 is divided into upstream and downstream chambers by a thin spring steel member 90 which projects downwardly into the opening 64.
  • a thin spring steel member 90 which projects downwardly into the opening 64.
  • pairs of opposed small air cylinders 92 for locally controlling the position of the spring steel divider 90.
  • the pistons of each pair of the cylinders 92 project toward each other and abut the divider 90 in opposed relation so that by operation of the cylinders the divider 90 can be flexed to admit paint from either one of the other of the two coating cavity chambers into the opening 64 for delivery to the strip surface.
  • the several pairs of cylinders 92 may be operated in unison or independently, taking advantage of the flexibility of the divider 90; thus, with paint of different colours in the two chambers of cavity 62 (these two chambers being respectively supplied with paint through ports 94 and 96), paint of one color can be delivered across the full width of the advancing strip, or alternatively paint of different colours can be delivered to different portions of the strip surface across the width thereof, by appropriate operation of the cylinders 92, i e. flexing the divider 90 in a common direction or in a multiplicity of directions.
  • the upper plate in the embodiment of Figures 14 and 15 has plural reservoirs or cavities opening downwardly toward the strip surface to be coated; these include a main cavity 108 extending across the full width of the strip and supplied through ports 110, and two auxiliary cavities 112 located downstream of the cavity 108.
  • Each of the cavities 112 has its long dimension oriented at an oblique angle to the long dimension of the cavity 108 and extends across only a portion of the width of the strip surface to be coated.
  • downstream of the cavities 112 on the downwardly facing surface of the upper plate 100 (which surface constitutes the upper wall of the gap 104), there are provided plural longitudinally oriented grooves 114 which cooperate with the cavities 112 in creating a striated appearance in the produced coating.
  • a rigid stationary plate 120 is disposed in adjacent relation to a rotatable drum 122 having a cylindrical outer surface 124, the drum rotating about a horizontal axis in the direction indicated by arrow 126.
  • Plate 120 has a downwardly facing smooth rigid arcuate surface 128 disposed in proximate spaced relation to the drum surface 124. This plate surface 128 is concentric with the drum surface 124 and is of extended length in the direction 126 of drum rotation, being also at least equal in width to the surface of strip to be coated by the apparatus.
  • the spacing between surface 128 of plate 120 and drum surface 124 is uniform throughout the entire extent of surface 128; hence the drum surface 124 and the plate surface 128 respectively constitute the lower and upper walls of a gap 130 of uniform height and extended length, through which a strip article such as metal strip 132 continuously advances in the direction represented by arrow 134.
  • the plate 120 At the upstream or inlet extremity of the surface 128, the plate 120 has an edge portion 136 extending transversely across the path of strip advance and serving as a dam for liquid coating material which is deposited on the strip surface (by suitable means, not illustrated) ahead of the dam.
  • the pool of liquid coating material thus deposited on the strip is laterally confiened by plate portions 138.
  • Figures 17 and 18 illustrate one currently preferred further embodiment of the apparatus of the invention, adapted for (though not limited to) production of a coating having a pattern of lines or striations, e.g. simulating the appearance of natural wood grain.
  • an aluminium strip 170 to be coated is advanced longitudinally by means including a back-up roll 172 over which the strip passes.
  • a coating device 174 applies a coating layer 176 of paint to a major surface 178 of the strip at a locality at which the strip is held against the roll 172 with the surface 178 exposed and facing outwardly.
  • This device includes a block or plate 180 mounted immediately adjacent the roll 172 at that locaclity and having a surface 182 curved concavely to conform to the surface of the roll and facing the roll in a position to define, with the roll surface, an arcuate gap through which the strip passes while being coated.
  • a horizontally elongate, axially rectilinear reservoir trench 184 for confining a body of liquid coating material (paint) is formed in the end portion of the plate 180, and opens through the plate surface 182 toward the strip surface 178; thus the trench, which is oriented with its long dimension parallel to the axis of roll 172 and perpendicular to the direction of strip advance (represented by arrow 186), has an open long side, but is otherwise enclosed by a side wall (preferably generally semicylindrical) and flat end walls.
  • the back-up roll 172 is positioned to maintain the strip surface 178 in proximate facing relation to the open long side of the trench so that the surface 178 constitutes a moving wall effectively closing the open trench side.
  • the strip 170 is continuously advanced over the back-up roll while the trench 184 is maintained continuously entirely filled with paint, which deposits on the passing strip surface 178 as a continuous wet coating layer having a thickness determined by the spacing between the outlet side edge 188 of the trench and the strip surface 178.
  • the coating layer passes through a uniform gap, defined by a portion of the plate surface 182, of extended length in the direction of strip travel; the provision of this gap aids in assuring the smoothness and uniformity of thickness of the coating emerging from beneath the sharp outlet edge 190 of the plate 180.
  • Three paint-delivery apertures are formed in the side wall of the trench 184, at localities spaced apart along the length of the trench and spaced from (viz. directly opposite) the open long side of the trench.
  • the central aperture 194 is positioned halfway between the ends of the trench; the apertures 192 and 196 are respectively positioned between the aperture 194 and the opposite ends of the trench, at distances (from aperture 194) each equal to one third of the total length of the trench, so that the three apertures are respectively centred in adjacent thirds of the length of the trench.
  • Each aperture constitutes the open outlet end of a main bore extending through the plate 180 and having a T-junction with a transverse bore in the plate at a locality spaced from the aperture.
  • the arrangement of main bore 198 and transverse bore 200 associatdd with aperture 192 is shown in Figure 8; the other two apertures, 194 and 196, have identical bore arrangements.
  • a supply 202 of paint of a first colour, including a pump 202a and valves 202b, is connected to the main bore associated with each of the three apertures, while a supply 204 of paint of a second colour, also including a pump and valves, is connected to the transverse bore of each aperture, as represented diagrammatically in Figure.18.
  • the main and transverse bores associated with each aperture, together with the paint supplies cooperatively constitute means for delivering concurrent laminar flows of two liquid coating materials (two colours-of paint) to the trench along a common path through that aperture.
  • the two colours of paint are supplied to-the device of Figures 17 and 18 at the same, substantially constant pressure, and the relative flows of the two colours at each aperture are determined by fixed orifice size, e.g. by the relative diameters of the main and transverse bores, such that a major flow of the first-colour paint and a minor flow of the second-colour paint enter the trench at each aperture.
  • the supply 202 may include a single pump 202a but three valves 202b (downstream of the pump) for respectively separately controlling supply of the first colour paint to the three main bores 198, while the supply 204 likewise includes a single pump .204a but three valves 204b for respectively separately controlling supply of the second-colour paint to the three transverse bores 200.
  • the two valves 202b and 204b associated with each aperture are electrically controlled to cause simultaneous starting or stopping of flow of both colours of paint through that aperture.
  • the coating layer applied to the strip surface 178 comprises three contiguously adjacent longitudinal portions (positionally indicated by letters a, b, and c in Figure 17) respectively constituted of paint delivered at the apertures corresponding. positionally. to those coating portions.
  • coating portion a is constituted of paint delivered to the trench at aperture 192
  • coating portion b is constituted of paint delivered at aperture 194
  • coating portion c is constituted of paint delivered at aperture 196.
  • the relative widths of coating: portions a, b and c are directly proportional to the relative total flows of paint respectively delivered at the corresponding apertures. This observed result indicates that the paint delivered at each aperture fills only the portion of the length of the trench adjacent that aperture, and does not intermix with the paint being delivered to an adjacent portion of the trench through an adjacent aperture, notwithstanding that the trench is continuous and undivided along its length. Given the conditions described above, viz. that all the valves are open and that the paint of both colours is supplied at the same pressure to all apertures, the paint delivered at each aperture fills one third of the trench and the coating portions a, b and c are equal to each other in width.
  • the striations contained therein are progressively displaced transversely of the strip, so that (as indicated at 176a in Figure 17) they appear to extend diagonally rather than parallel to the long edges of the strip, although (as further indicated at 176a) typically each such diagonal striation is constituted of a staggered array of short parallel striations; as at present believed, this progressive transverse displacement of the striations in the produced coating is a result of progressive axial expansion or compression of the helical flows within the trench incident to the described selective shutoff and resumption of paint supply through the several apertures.
  • the widening or narrowing of the coating portions produces progressive variation in the spacing between adjacent striations and in the degree of blending of the two colours of paint (with consequent variation in apparent width of the striations), all in conformity with the appearance of natural wood grain. Thereby, highly effective simulation of wood grain can be achieved in the produced pattern.
  • the plate 180 is provided with lateral projections 206 to facilitate mounting of the plate on appropriate support structure for holding the plate fixed in relation to the axis of the roll 172.
  • the mounting for the plate may include means (not shown) for adjusting the spaced position of the plate relative to the roll axis, thereby to vary the gap defined between the roll surface and the plate surface 182, as may be desired to accommodate strip of different gauges and/or to change the wet thickness of the applied coating layer.
  • the aluminium strip 170 to be coated is continuously advanced (by suitable and e.g. conventional strip-advancing means) longitudinally parallel to its long dimension from a coil (not shown) around rolls 211 and a guide roll 212, and thence over the back-up roll 172 (rotatably supported. with roll 212, in a frame 215) and a further roll 216.
  • a locality at which the strip is held against the back-up roll paint is applied to the outwardly facing major surface 178 of the strip from the coating device 174, to establish on the strip surface 178 a continuous layer or coating of the paint.
  • the strip is passed through an oven 220 to dry the coating, and thereafter coiled again, e.g. on a driven rewind roll (not shown) which, in such case, constitutes the means for advancing the strip through the coating line; within the oven, the advancing strip is in catenary suspension, and the weight of the suspended portion holds the strip against the back-up roll 172.
  • the direction of strip advance through the coating line is indicated by arrows 221.
  • the coating device 174 includes the plate 180 having a reservoir trench (not shown in Figure 19) with an open long side which extends, transversely of the path of strip advance, from end to end of the trench.
  • the back-up roll 172 supports the strip surface 178 in proximate facing relation to the open side of the trench as the strip passes the trench.
  • the plate 180 is preferably so disposed that its trench, facing back-up roll 172, lies substantially in a horizontal plane containing the axis of rotation of the back-up roll, and the coating line is so arranged that the strip is held against the back-up roll at this locality, which is thus the locality at which paint is applied to the strip.
  • successive lengths of strip are usually joined together (spliced) endwise at a transverse seam which is thicker than the strip gauge; when this seam passes between the plate 180 and roll 172, the plate must be temporarily moved away from the roll sufficiently to accommodate the thickness of the seam.
  • FIG. 20 illustrates schematically a plate 222 having a surface 224 in which is formed an elongate, axially rectilinear trench 226 supplied with paint through an aperture 228, for use in the same manner as the plates described above in applying a coating to a strip article.
  • the trench 226 extends for the full length of the plate, opening through the opposite sides thereof, and is closed at its ends by a pair of shutter members 230 which are snugly but slidably inserted into the opposed extremities of the trench.
  • Means may be provided for holding the shutter members in any desired position.
  • the length of the trench, and consequently the width of the applied coating can be varied as desired by moving the shutter members longitudinally toward or away from each other within the trench.
  • the coating layer width can readily be selected to be somewhat less than the strip width, so that both longitudinal edge portions of the coated strip surfaces are left bare to permit direct metal-to-metal contact between adjacent courses of panels (i.e. when the panels are formed, cut, and installed on a building wall) as isdesired to render the panel assembly electrically conductive.
  • the above-described coating systems and procedures afford other important advantages, with respect to operating economy and efficiency and environmental considerations, as compared to conventional roll-coating systems.
  • the mechanical simplicity of the present systems which have no coating rolls to maintain, reduces capital investment and maintenance costs as well as saving the energy required to rotate coating rolls. Since the systems are fully enclosed, i.e.
  • Coating colour changes can be effected much more rapidly, and with production of much less scrap (strip that passes the coating station and is not satisfactorily coated during a colour change), than in the case of roll coating operations, which require relatively lengthy cleanup and reset times for colour changer.
  • the present systems facilitate production of special colour coatings in short runs.
  • the present systems achieve smoother, finer-textured coatings than are produced by roll-coating, owing in particular (as at present believed) to the extended surface or land which the coated strip passes immediately beyond the trench. Problems of blistering due to air entrapment, a cause of much poor or unsatisfactory coating in conventional operations, are eliminated by the long land and by the application of the coating material under pressure in a fully filled and enclosed trench.
  • a still further advantage is that (as already mentioned) the width of the applied coating can be made narrower than the strip; and there is no build-up of a relatively thick bead of coating material along the edges of the coated strip, as occurs in conventional roll coating.
  • Figures 21 to 33 show modified forms of the apparatus illustrated in Figures 1 to 3, and components corresponding to those in Figures 1 to 3 are indicated by the same reference numerals.
  • a plurality of small apertures 36 are provided in the upper plate 18;opening downwardly through the wall 26 into the gap defined between that wall and the coated strip surface 10, beyond the dam 32, at locations spaced across the width of the surface 10.
  • These apertures all communicate with a manifold trough 338, illustrated as formed in the plate 18 and closed by a cover 340.
  • the trough 338 is maintained entirely filled with a second liquid coating material (e.g. differing in colour from the aforementioned first liquid coating material) supplied under pressure from a source represented as a pump 342, although again, the second liquid coating material could be supplied by gravity feed under hydrostatic pressure.
  • the second liquid coating material is delivered to the gap between the wall 26 and the strip surface 10 (i.e. at five spaced locations, via the apertures 336) under pressure sufficient to locally displace the first liquid coating material of the wet coating layer which already fills the gap, thereby to establish in the coating layer a longitudinal stripe 344 at the location of each of the apertures.
  • This displacement occurs because of the selected supply pressure of the second 1 quid coating material and because the already-applied layer of the first liquid coating material is still wet, having been maintained fully enclosed by the plate assembly at and downstream of the dam 32. It id believed that the effect of this displacement acts in an upstream direction, i.e.
  • the resultant stripes 344 extend substantially entirely through the thickness of the produced coating rather than merely overlying the layer of the first coating material. Consequently, the stripes do not wear preferentially or disappear prematurely upon weathering.
  • the stripes 344 of the second liquid coating material are narrow and sharply defined, extending parallel to each other from the five apertures 336, and exhibit very little if any blending with the first liquid coating material. Some degree of blending along the stripes may be effected, if desired, by providing a movable portion of the wall 26 downstream of the apertures 336 and moving that wall portion, in the plane of the wall, transversely of the direction of strip advance.
  • the upper plate 18 has a circular recess 346 opening downwardly through the surface of wall 26 downstream of the apertures 336; within this recess is disposed a disc 348, very slightly smaller than the recess in diameter, having a downwardly facing surface coplanar with and effectively constituting a part of the wall 26.
  • the disc is mounted (by means of a shaft 3350 projecting upwardly through a bore in the plate 18) for angular displacement about an axis perpendicualr to the plane of wall 26.
  • the diameter and location of the disc are such that the disc surface is traversed by, and thus in contact with, the five stripes 344 emerging from the apertures 336.
  • Figures 24 to 28 differs from that of Figures 21 to 23 in that the apertures for delivering the second liquid coating material to the gap between the strip being coated and the facing wall are angularly displaceable about an axis perpendicular to the plane of the coated strip surface 10.
  • a disc 352 is disposed in a circular recess 354 which is formed in the upper plate 18 and which opens downwardly through the wall 26 downstream of the trench 22 in the path of strip advance, the disc being only slightly smaller in diameter than the recess.
  • the disc 352 mounted (by means of a shaft 356 that projects upwardly through a bore in plate 18) for rotation about an axis perpendicular to wall 26, has a lower surface 358 coplanar with and effectively constituting part of the wall 26.
  • Five coating material delivery apertures 336 formed in the disc 352, open through the surface 358 into the gap, and communicate with an enclosed manifold passage or trough 238a also formed within the disc 352.
  • the second liquid coating material is supplied under pressure to the trough 338a through a passage 360 in the disc shaft 358.
  • the disc 352 If, however, during continuous advance of the strip 11, and continuous supply of the two liquid coating materials to the apparatus, the disc 352 is rotated about the axis of shaft 356, the apertures 336a (though fixed in position relative to each other) are angularly displaced about that axis, with resultant change in location and spacing of the produced stripes.
  • rotation of the disc 352 through 45 0 from the position shown at A in Figure 28 to the position shown at B in Figure 28 causes the stripes 44 to change progressively, in location and spacing, from the initial condition shown at 344a in Figure 28 to the final condition shown at 344b in Figure 28, in correspondence with the angular change in position of the apertures relative to the path of strip advance.
  • diversified pattern effects with wandering, diverging, and converging stripes can be achieved.
  • each aperture 336a may have an associated short groove 362, tapering in depth and width away from the aperture, and formed in the lower surface 358 of the disc 352 so as to be in contact with the wet coating layer.
  • These grooves positioned to extend usually or generally in a downstream direction from their respective associated - apertures, serve to impart a fine flecked appearance or texture to the coating in and adjacent the produced stripes.
  • Figures 29 to 33 illustrate a specific embodiment of the invention (currently preferred for production of a coating with a simulated wood grain pattern) of the general type shown in Figures 24 to 28, i.e. having plural coating material delivery apertures carried in a rotatably mounted disc.
  • the apparatus includes a top plate 18 and a bottom plate 20 secured together at their corners by bolts 421a, with biasing springs 421b provided for maintaining the plates in spaced-apart relation and lateral guides or stops 421c projecting upwardly from the lower plate to assure proper register of the plates.
  • a plurality of coating material delivery apertures 436 with associated manifold passagws 438 are formed in a disc 452 which is received in a downwardly opening circular recess 454 in the plate 18.
  • This disc has an upwardly projecting vertical shaft 456 and a smooth downwardly facing plane surface 458 that is disposed in coplanar relation to the plate surface 26, downstream of the dam 32, to constitute a portion of the wall facing the coated major surface of a strip article advancing in the direction indicated by arrows 431 through the gap 30.
  • the apertures 436 open downwardly through the disc surface 458 for delivery, to the coating- filled gap between the wall and the coated strip surface, of a second liquid coating material which is delivered under pressure from.a suitable source (not shown) through a passage 460 in the shaft 456 to the manifold passages 438.
  • the shaft 456 is journalled in a bearing structure 462, mounted atop the plate 418, to support the disc 452 for rotation about an axis perpendicular to the plane of the wall constituted by surfaces 26 and 458.
  • the disc 452 with its apertures 436 and manifold passages 438 corresponds generally in structure and function to the disc 352 of the embodiment of Figures 24 to 28, providing delivery of second liquid coating material to the aforementioned gap under pressure through plural spaced apertures while being rotatable to effect angular displacement of the apertures for varying the positions and spacing of the stripes produced by such delivery of the second coating material.
  • the disc 452 can be a circular metal plate through which the manifold passages 438 are b6red; the apertures 436 are drilled into the passages 438 through the lower surface of the plate, and the ends of the passages 438 are then closed by suitable means as indicated at 464.
  • the apertures 436 are distributed across one half of the downwardly facing surface of the disc 452 and are aligned in four rows each comprising four spaced apertures.
  • the rows are arranged at angles to each other in the form of the letter W and are all eccentric with respect to the disc; i.e. a line interconnecting any row of four apertures does not pass through the centre of the disc.
  • This arrangement of apertures is found particularly effective for producing a simulated wood-grain pattern of stripes of the second coating material delivered thereto, when the disc is progressively angularly displaced first in one direction and then in the opposite direction during the course of a coating operation; that is to say, with this arrangement of apertures, there are produced a series of narrow stripes individually resembling the lines of a wood-grain pattern and varying progressively in position and spacing, with angular displacement of the disc, in a manner corresponding to that of natural wood-grain lines.
  • the manifold passages associated with the various rows all interconnect with each other and, by further passages 438a (also bored through the disc and sealed at their outer ends), are interconnected with the passage 460.
  • the article is continuously advanced along the path indicated by arrows 131 through the gap 30 while a first liquid coating material is delivered under pressure to the trough 22 so as to maintain the trough entirely filled therewith, and while a second liquid coating material is delivered to the manifold passages of the disc 452 under pressure and thence through the apertures 436, with progressive angular displacement of the disc, first in one direction and then in another.
  • the movement of the disc causes the disc surface, in contact with the coating layer, to effect some degree of blending or mixing of the two liquid coating materials downstream of the apertures 436 to enhance further the resemblance to wood-grain lines.
  • the disc surface 458 be located very precisely in the plane of the plate surface 26.
  • a series of stops 470 are disposed within the recess 454 and threaded in the plate 18 so as to be vertically adjustable. The stops bear against the upper surface of the disc 452 for establishing the vertical position of the disc relative to surface 26.
  • One particularly convenient arrangement for achieving proper adjustment of the disc position includes an array of permanent magnets 472 mounted in the plate 18 so as to project into the recess 454 above the disc and to attract the disc (which, in this arrangement, is fabricated of a magnetic metal) upwardly into engagement with the stops 470. Although the magnets 472 do not actually engage the disc, their attraction holds it against the stops, which may then readily be adjusted to assure the requisite coplanar arrangement of the surfaces 458 and 26.

Landscapes

  • Coating Apparatus (AREA)
EP19820300160 1981-01-21 1982-01-12 Vorrichtung und Verfahren zum Aufbringen eines Überzuges Expired EP0056704B1 (de)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US06/226,705 US4356216A (en) 1981-01-21 1981-01-21 Process for producing striped surface coatings
US06/226,699 US4387123A (en) 1981-01-21 1981-01-21 Coating process and apparatus
US226697 1981-01-21
US06/226,697 US4344990A (en) 1981-01-21 1981-01-21 Process and apparatus for coating strip articles and the like
US226705 1981-01-21
US226699 1981-01-21

Publications (3)

Publication Number Publication Date
EP0056704A2 true EP0056704A2 (de) 1982-07-28
EP0056704A3 EP0056704A3 (en) 1982-09-22
EP0056704B1 EP0056704B1 (de) 1986-08-20

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ID=27397651

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19820300160 Expired EP0056704B1 (de) 1981-01-21 1982-01-12 Vorrichtung und Verfahren zum Aufbringen eines Überzuges

Country Status (5)

Country Link
EP (1) EP0056704B1 (de)
AU (1) AU552104B2 (de)
DE (1) DE3272647D1 (de)
ES (1) ES508890A0 (de)
MY (1) MY8700866A (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0096453A2 (de) * 1982-06-07 1983-12-21 Acumeter Laboratories Inc. Verfahren und Vorrichtung zum mehrschichtigen Auftragen einer viskosen Flüssigkeit sowie zum Aufbringen von Klebstoffen und dergleichen
EP0104089A1 (de) * 1982-09-21 1984-03-28 Xerox Corporation Gleichzeitige Herstellung und Absetzung von streifenartigen Strömen
WO1984003238A1 (en) * 1983-02-21 1984-08-30 Edward Bok Method and installation for the applying of a coating on a substrate or tape
US4576109A (en) * 1982-02-24 1986-03-18 Edward Bok Apparatus for applying a coating on a substrate
US4663197A (en) * 1981-08-26 1987-05-05 Integrated Automation Limited Method and apparatus for coating a substrate
EP0325007A1 (de) * 1986-02-06 1989-07-26 Acumeter Laboratories Inc. Verfahren zum Auftragen von Klebstoffen auf Gewebeträger
EP0470690A2 (de) * 1990-08-10 1992-02-12 Atochem North America, Inc. Verfahren und Vorrichtung zum Modifizieren der Oberfläche von Kunststoffgegenständen
EP0528683A1 (de) * 1991-08-20 1993-02-24 MCNEIL & NRM, INC. Verfahren und Vorrichtung zum Auftragen eines warmen Gummistreifens auf eine Reifenkarkasse
EP0558459A1 (de) * 1992-02-28 1993-09-01 IMPORTOREX S.r.l. Vorrichtung zur Verbindung von Flachteilen und plattenartigen Elementen im allgemeinen
WO1996024088A1 (en) * 1995-02-02 1996-08-08 Minnesota Mining And Manufacturing Company Method and apparatus for applying thin fluid coating stripes
EP0907422A1 (de) * 1996-07-02 1999-04-14 Avery Dennison Company Abdichtungssystem für eine verbesserte auftragevorrichtungsdüse
EP0950438A1 (de) * 1998-03-19 1999-10-20 Schablonentechnik Kufstein Aktiengesellschaft Verfahren zum Aufbringen eines Musters auf eine Oberfläche eines Trägers
EP1140377A1 (de) * 1998-11-27 2001-10-10 Metallveredlung GmbH & Co. KG Beschichtung aus kunststoffüberzug, verfahren sowie vorrichtung zu dessen herstellung
CN113306060A (zh) * 2021-07-09 2021-08-27 钟玉兰 一种解决涂料不易回收利用问题的涂料压片用辅助装置
CN117531647A (zh) * 2024-01-10 2024-02-09 靖江瑞泰电子材料有限公司 一种smd上盖带涂表面处理剂装置

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US2695005A (en) * 1953-01-05 1954-11-23 Tobey Color Card Company Apparatus for applying color coatings to sheet material
US3106480A (en) * 1961-02-16 1963-10-08 Plastiwall Inc Apparatus and method for applying a striped coat of paint to a sheet of material in a single operation
DE1810599A1 (de) * 1967-12-18 1969-09-18 Black Clawson Co Fontaenenbeschichter
DE1939038A1 (de) * 1968-08-01 1970-02-19 Fuji Photo Film Co Ltd UEberzugsverfahren und UEberzugsvorrichtung
GB1266745A (de) * 1969-06-11 1972-03-15
US3886898A (en) * 1973-12-19 1975-06-03 Burroughs Corp Multiple, contiguous stripe, extrusion coating apparatus
EP0003790A1 (de) * 1978-02-23 1979-09-05 International Business Machines Corporation Vorrichtung zum Beschichten einer sich bewegenden Bahn

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Publication number Priority date Publication date Assignee Title
US2695005A (en) * 1953-01-05 1954-11-23 Tobey Color Card Company Apparatus for applying color coatings to sheet material
US3106480A (en) * 1961-02-16 1963-10-08 Plastiwall Inc Apparatus and method for applying a striped coat of paint to a sheet of material in a single operation
DE1810599A1 (de) * 1967-12-18 1969-09-18 Black Clawson Co Fontaenenbeschichter
DE1939038A1 (de) * 1968-08-01 1970-02-19 Fuji Photo Film Co Ltd UEberzugsverfahren und UEberzugsvorrichtung
GB1266745A (de) * 1969-06-11 1972-03-15
US3886898A (en) * 1973-12-19 1975-06-03 Burroughs Corp Multiple, contiguous stripe, extrusion coating apparatus
EP0003790A1 (de) * 1978-02-23 1979-09-05 International Business Machines Corporation Vorrichtung zum Beschichten einer sich bewegenden Bahn

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4663197A (en) * 1981-08-26 1987-05-05 Integrated Automation Limited Method and apparatus for coating a substrate
US4576109A (en) * 1982-02-24 1986-03-18 Edward Bok Apparatus for applying a coating on a substrate
EP0096453A2 (de) * 1982-06-07 1983-12-21 Acumeter Laboratories Inc. Verfahren und Vorrichtung zum mehrschichtigen Auftragen einer viskosen Flüssigkeit sowie zum Aufbringen von Klebstoffen und dergleichen
EP0096453A3 (en) * 1982-06-07 1985-06-26 Acumeter Laboratories Inc. Method of and apparatus for multi-layer viscous fluid deposition such as for the application of adhesives and the like
EP0104089A1 (de) * 1982-09-21 1984-03-28 Xerox Corporation Gleichzeitige Herstellung und Absetzung von streifenartigen Strömen
WO1984003238A1 (en) * 1983-02-21 1984-08-30 Edward Bok Method and installation for the applying of a coating on a substrate or tape
US4620997A (en) * 1983-02-21 1986-11-04 Integrated Automation Limited Method for coating substrates
EP0325007A1 (de) * 1986-02-06 1989-07-26 Acumeter Laboratories Inc. Verfahren zum Auftragen von Klebstoffen auf Gewebeträger
EP0470690A2 (de) * 1990-08-10 1992-02-12 Atochem North America, Inc. Verfahren und Vorrichtung zum Modifizieren der Oberfläche von Kunststoffgegenständen
EP0470690A3 (en) * 1990-08-10 1992-07-22 Atochem North America, Inc. Modifying the surface of polymer articles
US5342473A (en) * 1991-08-20 1994-08-30 Nrm Steelastic, Inc. Apparatus for applying hot cushion gum to a tire carcass
EP0528683A1 (de) * 1991-08-20 1993-02-24 MCNEIL & NRM, INC. Verfahren und Vorrichtung zum Auftragen eines warmen Gummistreifens auf eine Reifenkarkasse
US5447587A (en) * 1991-08-20 1995-09-05 Mcneil & Nrm, Inc. Method for applying hot cushion gum to a tire carcass
EP0558459A1 (de) * 1992-02-28 1993-09-01 IMPORTOREX S.r.l. Vorrichtung zur Verbindung von Flachteilen und plattenartigen Elementen im allgemeinen
WO1996024088A1 (en) * 1995-02-02 1996-08-08 Minnesota Mining And Manufacturing Company Method and apparatus for applying thin fluid coating stripes
US5733608A (en) * 1995-02-02 1998-03-31 Minnesota Mining And Manufacturing Company Method and apparatus for applying thin fluid coating stripes
EP0907422A4 (de) * 1996-07-02 1999-09-22 Avery Dennison Company Abdichtungssystem für eine verbesserte auftragevorrichtungsdüse
EP0907422A1 (de) * 1996-07-02 1999-04-14 Avery Dennison Company Abdichtungssystem für eine verbesserte auftragevorrichtungsdüse
EP0950438A1 (de) * 1998-03-19 1999-10-20 Schablonentechnik Kufstein Aktiengesellschaft Verfahren zum Aufbringen eines Musters auf eine Oberfläche eines Trägers
US6083571A (en) * 1998-03-19 2000-07-04 Schablonentechnik Kufstein Aktiengesellschaft Method of applying a pattern to a surface of a substrate
EP1140377A1 (de) * 1998-11-27 2001-10-10 Metallveredlung GmbH & Co. KG Beschichtung aus kunststoffüberzug, verfahren sowie vorrichtung zu dessen herstellung
CN113306060A (zh) * 2021-07-09 2021-08-27 钟玉兰 一种解决涂料不易回收利用问题的涂料压片用辅助装置
CN113306060B (zh) * 2021-07-09 2023-01-17 岳阳林峰高科有限公司 一种解决涂料不易回收利用问题的涂料压片用辅助装置
CN117531647A (zh) * 2024-01-10 2024-02-09 靖江瑞泰电子材料有限公司 一种smd上盖带涂表面处理剂装置
CN117531647B (zh) * 2024-01-10 2024-04-02 靖江瑞泰电子材料有限公司 一种smd上盖带涂表面处理剂装置

Also Published As

Publication number Publication date
AU552104B2 (en) 1986-05-22
ES8306613A1 (es) 1983-06-01
DE3272647D1 (en) 1986-09-25
EP0056704A3 (en) 1982-09-22
MY8700866A (en) 1987-12-31
EP0056704B1 (de) 1986-08-20
AU7966282A (en) 1982-07-29
ES508890A0 (es) 1983-06-01

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