EP0577539B1 - Vorrichtung zur Beschichtung und/oder Imprägnierung einer sich kontinuierlich bewegenden Bahn mit einer Flüssigkeit oder einem pastösen Medium - Google Patents

Vorrichtung zur Beschichtung und/oder Imprägnierung einer sich kontinuierlich bewegenden Bahn mit einer Flüssigkeit oder einem pastösen Medium Download PDF

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Publication number
EP0577539B1
EP0577539B1 EP19930490013 EP93490013A EP0577539B1 EP 0577539 B1 EP0577539 B1 EP 0577539B1 EP 19930490013 EP19930490013 EP 19930490013 EP 93490013 A EP93490013 A EP 93490013A EP 0577539 B1 EP0577539 B1 EP 0577539B1
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EP
European Patent Office
Prior art keywords
product
tube
orifices
reservoir
supply
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP19930490013
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English (en)
French (fr)
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EP0577539A1 (de
Inventor
Thierry Pellegrino
Gabriel Corradi
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M Chemicals SARL
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M Chemicals SARL
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Filing date
Publication date
Priority claimed from FR9208643A external-priority patent/FR2692818B1/fr
Application filed by M Chemicals SARL filed Critical M Chemicals SARL
Priority to US08/121,343 priority Critical patent/US5490879A/en
Publication of EP0577539A1 publication Critical patent/EP0577539A1/de
Priority to JP14777294A priority patent/JPH07275763A/ja
Application granted granted Critical
Publication of EP0577539B1 publication Critical patent/EP0577539B1/de
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    • 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
    • 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

Definitions

  • the invention relates to a device for coating and / or impregnating a liquid or pasty product on a sheet of material in continuous movement.
  • the invention will find its application in the equipment of such machines producing webs of material in continuous movement.
  • devices such as wetting rollers, constituted by a cylinder dipping in a bath of the product to be applied.
  • the main drawbacks of such devices lie in the difficulty of dosing the quantity of product to be deposited, and in the impossibility of carrying out partial treatments of width less than that of the cylinder.
  • Spraying devices are also known which allow adjustment of the flow rate by means of spray nozzles. However, in these devices, it is difficult to adjust the uniformity of the deposit made. In addition, the use of pasty products is completely excluded.
  • a device for applying a liquid or pasty product to a moving web. continuous comprising means for depositing a film of liquid or pasty product on a surface of the sheet to be treated and means for feeding the product.
  • the device comprises a reserve of product, constituted by a flexible plastic sheet, pressed above the traveling web by means of a pressing blade, arranged across the web and forming the lower part of the tank.
  • said plastic sheet has a rectangular window whose dimensions define the width of the coating and the amount of product deposited.
  • Document EP-A-0,436,893 also discloses a device for coating and / or impregnating a liquid or pasty product on a sheet of material in continuous movement making it possible to adjust the width of the deposited layer. It comprises means for depositing a layer of said product, at least partially on one face of said ply, constituted by a reserve having a perforated zone comprising on a part of its envelope a set of orifices opening outwardly and communicating internally with a chamber supply of product whose surface is adjustable.
  • document DE-A-3,423,250 describes a device for coating and / or impregnating a product on a sheet having a distributor cylinder whose flow rate is adjustable.
  • this device does not make it possible, in particular, to control the width of the deposit on the sheet.
  • this device is only intended for the application of one product at a time.
  • the coating of a sheet when only part of the width is coated, it receives a certain amount of moisture with the coating product, in particular in the form of an aqueous emulsion, the part not treated to be moistened with a light film of water so that the sheet has a fairly regular and homogeneous dryness in order to avoid in particular the phenomena of deformation which would adversely affect its flatness.
  • the aim of the present invention is to propose a device for coating and / or impregnating a product. liquid or pasty on a sheet of continuously moving material, which overcomes the aforementioned drawbacks and which is not an obstacle to production at high speed.
  • One of the aims of the present invention is to provide a coating and / or impregnating device, which can be inserted in lines of machines for producing webs of material in continuous movement, and which has a robust and reliable construction allowing its operation at very high frame rates.
  • One of the aims of the present invention is to provide a device for coating and / or impregnating a liquid or pasty product which makes it possible to precisely control the deposition of said product on the sheet of moving material, as well as its geometry, without however having to modify the structure of the elements used.
  • Another object of the present invention is to present a device for coating and / or impregnating a liquid or pasty product which, thanks to its structure, allows easy operation control and also the automation of its settings.
  • Another object of the present invention is to propose a coating and / or impregnating device which does not slow down the production rates if, by its adjustments, it is no longer in the working position.
  • Another object of the present invention is to provide a coating and / or impregnating device which makes it possible to apply or deposit different products simultaneously or not, which increases their usability.
  • Another object of the present invention is to provide a coating and / or impregnating device which makes it possible to circulate and recover the cleaning fluids in order to avoid pollution.
  • Another object of the present invention is to propose a coating and / or impregnating device which makes it possible to obtain a better dryness on the assembly of the web to be coated and / or impregnated while avoiding loss of material generating waste.
  • FIG. 1 schematically shows in perspective a first embodiment of the coating and / or impregnating device of the present invention.
  • Figure 2 shows a cross-sectional view of the applicator means shown in Figure 1 in a closed position.
  • Figure 3 shows a longitudinal section of the applicator means shown in Figure 2 along axis III.
  • Figure 4 shows a cross-sectional view of the same applicator means as those illustrated in Figure 2 but in a working position allowing the coating and / or impregnation.
  • Figure 5 shows a longitudinal sectional view of the applicator means shown, in a working position in Figure 4 along the axis V-V.
  • Figure 6 schematically shows a second embodiment of the coating and / or impregnating device of the present invention.
  • Figure 7 shows an exploded view of the applicator means in a first embodiment.
  • FIG. 8 shows a perspective view with a partial section of the applicator means of FIG. 6.
  • FIG. 9 is a view in longitudinal section of the applicator means illustrated in FIG. 1.
  • Figure 10 is a schematic perspective view which illustrates an embodiment of a supply chamber fitted to a device according to the invention.
  • Figure 11 is a schematic perspective view which illustrates an alternative embodiment of a supply chamber fitted to a device according to the invention.
  • FIG. 12 is a schematic view which illustrates another alternative embodiment of the body of a feeder core, on which is slidably movable mounted at least one feed delimiter, and at least part of its surface of which is constituted by at least part of an arc, which has two application chambers.
  • Figure 13 is a schematic view which illustrates another alternative embodiment of the body of a supply means on which is slidably movable mounted at least one supply delimiter, and which has here three branches whose free end is arranged at the top of a virtual triangle, and which has three application chambers.
  • Figure 14 is a schematic view which illustrates another alternative embodiment of the body of a feeder means, on which is slidably mounted at least one supply delimiter, and which has four branches whose free end is disposed at the top d 'a virtual square, which has four application chambers.
  • Figure 15 is a schematic sectional view which illustrates a coating and / or impregnating device equipped with a Meyer bar to ensure regular and homogeneous placement of a layer of product to be coated and / or impregnated on a sheet of moving product.
  • FIG. 16 is a schematic perspective view which shows a coating and / or impregnating device comprising a supply chamber, inside of which two supply delimiters are mounted to move in translation.
  • Figure 17 is a view similar to Figure 16 which shows a supply chamber, inside which are mounted movable in translation three supply delimiters.
  • FIG. 18 is a view in longitudinal section which illustrates applicator means shown in FIG. 17.
  • Figure 19 is a schematic view similar to Figure 15 which illustrates a reserve having two orifices for the introduction of products of different natures.
  • the invention relates to a device for coating and / or impregnating a liquid or pasty product on a sheet of material in continuous travel.
  • the present invention is in no way limited to such an application and, in general, it will find its application in all types of field using as raw material plies of flexible material such as paper, cardboard, fabric or plastic, which is scrolled at high speed, and where it is necessary to treat one side of the ply during its scrolling, in order to deposit thereon a film of liquid or pasty product, such as for example ink, glue, an impregnator, or any other decorative product.
  • a film of liquid or pasty product such as for example ink, glue, an impregnator, or any other decorative product.
  • the products to be coated during the coating operation, they are placed in the absence of air until they are deposited on the material and, therefore, they are locked in the dust shelter and protected from drying so as to prevent any release of gases for the benefit of the environment and people, these gases being particularly dangerous, explosive or flammable at low temperature.
  • FIG. 1 schematically shows, in perspective, a first embodiment of the device 1 of the present invention, in which there is found in 2 a sheet of material in continuous movement, simulated by the arrows 3.
  • the device comprises applicator means 4 for depositing a layer 5 of liquid or pasty product at least partially on one face 6 of the sheet, as shown in FIG. 1.
  • these applicator means 4 consist of a reserve 7 having a perforated area 8, brought into contact with the face 6 to be coated and / or impregnated, the surface and / or permeability of which are adjustable.
  • the reserve 7 is in the form of a cylinder, fixed relative to the running movement 3 of the web 2, around which said ply 2 is deflected as shown particularly in FIG. 1.
  • the cylinder 7 has, on a part of its casing 8, a set of orifices 9 opening outwardly and communicating internally with a product supply chamber 10.
  • the reserve 7 has, in its inner part, a radial shutter tube 11, capable of controlling the radial permeability of the set of orifices 9 and, consequently, the thickness of the layer 5 deposited.
  • the reserve 7 is constituted by a set of coaxial tubes adjusted to one another.
  • a first outer tube 12 is pierced with a multitude of radial orifices 9 and regularly spaced by a step marked "p 1 " in the longitudinal direction and "p 2 " in the radial direction.
  • orifices when we develop the envelope of the cylinder 12, of diameter 200 for example, good results have been obtained by making orifices with a diameter of 25 mm alternated in staggered rows with a pitch p 1 of 20 mm and a pitch p 2 of 26 mm. These orifices can be cylindrical or of flared shapes to increase the surface of the orifice in contact with the ply as shown in the figures.
  • a second tube 11 is adjusted, which is itself pierced with a multitude of annular grooves 13 and parallel to each other, and spaced apart by the pitch "p 1 ".
  • This arrangement will make it possible to adjust the radial permeability of the perforated zone 8 brought into contact with the face to be coated and / or to be impregnated and, consequently, to control the thickness of the deposited layer.
  • This third tube 14, fitted in the second tube 11 defines an internal conduit constituting said product supply chamber 10. Furthermore, this third tube is mounted so that it can be moved in longitudinal translation relative to the second tube 11.
  • the transverse obturator tube 14 will advantageously consist of two half tubes 14 1 and 14 2 movable transversely in the second tube 11, in order to be able to close all the grooves 13, as shown in FIG. 3, or some of them as shown in FIG. 5, or to allow free passage over all the orifices.
  • the device of the present invention further comprises, placed downstream of the applicator means 4, means for scraping the coated sheet.
  • these means 15 are constituted by a bar 16 called "Meyer”, known to those skilled in the art.
  • This bar is for example constituted by a wire wound in a spiral and welded which is rotated in the opposite direction of the advancement of the web as illustrated in the figure.
  • this bar is pressed on the sheet, by means of an air chamber 17 for example.
  • the overflow 18 is discharged laterally towards the outside of the sheet to be treated.
  • the device of the present invention is also fitted with various pipes and stop valves, making it possible to inject into the tube 14 1 or 14 2 or both, for example the product to be deposited on the sheet. , which is then channeled through the inner conduit of the second tube 11 then evacuates through grooves 13 and orifices 9 towards the strip as the arrows 19 in FIG. 5 simulate.
  • FIGS. 6 to 8 show a second embodiment of the device of the present invention in which the reserve 7 is in the form of a polyhedron 20, one of the faces 21 of which is brought into contact with the web 2 as it travels 3, and has a set of orifices 22 opening outwardly and communicating internally with a product supply chamber.
  • the product is supplied with orifices 23 distributed over the upper surface and opening into the interior cavity 24 of said polyhedron.
  • the polyhedron is in the form of a tube 20 of rectangular section, inside which one or more shutters 25-30 are provided sliding.
  • These shutters 25-30 are capable of sliding longitudinally in the interior chamber 24 of the tube 20 to control the longitudinal permeability, and consequently the thickness of the deposited layer, and / or the transverse permeability, and consequently the width of the layer. filed.
  • the perforated zone 21 of the reserve 20 is applied to the moving web with a back pressure, simulated in FIG. 6 by the presence of the spring 31 and the lower anvil 32.
  • a back pressure simulated in FIG. 6 by the presence of the spring 31 and the lower anvil 32.
  • other means of back pressure could be considered.
  • the device can be equipped, downstream of the applicator means, with scraping means, identified here 33, and co-located for example by a flexible blade rubbing the ply 2 at the outlet of the applicator 7, as shown in FIG. 6.
  • the radial shutter means 110 consist of a body of a feeder core 120, part of its surface of which consists of at least one portion of an arc circle, and, by two supply delimiters 140a, 140b mounted movable in translation on said body 120, and, crossed, by supply pipes in order to ensure distribution of the product in the supply chamber 100.
  • the body 120 of the feeder core comprises a branch 130, projecting perpendicularly, defining on either side thereof, two chambers supply 130a, 130b, intended to receive a supply delimiter 140c, 140d, constituting transverse sealing means in order to control the transverse permeability of all of the orifices 9 and consequently, the width of the deposited layer.
  • the body 120 of the feeder core comprises three branches 150a, 150b, 150c, the free end of each of which is arranged at the top of a triangle virtual circumscribed inside a virtual circle concentric with the axis of the body 120, and which respectively delimits feed chambers 160a, 160b, 160c, each intended to receive at least one feed delimiter 170a, 170b, 170c, of complementary shape and crossed by supply pipes 250 so as to ensure distribution to the product in said supply chambers 160a, 160b and 160c.
  • two feed delimiters are necessary to coat a strip and, at least three, if it is desired to coat with minus two bands.
  • a body 120 of the feeder core which has four branches 180a, 180b, 180c and 180d, the free end of each is disposed at the top of a virtual square circumscribed inside a virtual circle concentric with the axis of the body 120, and, which respectively delimits supply chambers 190a, 190b, 190c and 190d, intended to each receive at least one supply delimiter 200a, 200b, 200c and 200d of complementary shape traversed by supply pipes 25 intended to allow a distribution of product in said supply chambers 190a-190d.
  • the reserve 70 has a zone 80 perforated with a multitude of radial orifices 90 regularly spaced apart by a pitch marked “p 1 " in the longitudinal direction and "p 2 " in the radial direction.
  • the reserve 70 is constituted by a first external tube 330, pierced with a multitude of radial orifices 90, regularly spaced, by shutter means 110 adjustable in the first tube 330, and capable of being moved, in rotation, by motor means not shown and, by supply delimiters 140a, 140b, 170a, 170c, 200a, 200d adjusted in the body 120 of the feeder core by defining at least one internal cavity constituting said product supply chamber, and which are able to be moved in longitudinal translation relative to said body 120, by means of motor means 210 which actuate an endless screw 220 in order to delimit the width of the material to be treated.
  • the motor means may for example be constituted by linear jacks or by any other device equipped with suitable adjustment means.
  • the feeder delimiters 140a, 140b, 140e, 140f, 170a, 170c and 200a, 200d have a body 230 of shape complementary to that of the application chamber in which they are able to be moved in longitudinal relation on the body 120.
  • this body may have a surface constituted by at least one portion of a semi-circle as is more particularly illustrated in FIGS. 10 and 11, or alternatively, of a quarter of a circle as that is shown in FIGS. 12 to 15.
  • This body 230 has an axial orifice 240 intended to allow the passage of a supply conduit 250 for product to be deposited on the sheet, as well as for the evacuation of the product overflow.
  • This arrangement will make it possible to adjust the radial permeability of the perforated area 80, brought into contact with the face to be coated and / or to be impregnated and, consequently, to control the thickness of the deposited layer.
  • the body 230 of the application delimiter 140e, 140f comprises a regular distribution of radial orifices 260, intended to allow, depending on their position by compared to the orifices 90, the positioning of the product to be impregnated on the face of the sheet.
  • the body 230 of the application delimiter 140e, 140f comprises a regular distribution of radial orifices 260, intended to allow, depending on their position by compared to the orifices 90, the positioning of the product to be impregnated on the face of the sheet.
  • FIGS. 12 to 15 using several application delimiters 140a, 140d, 140e, 140f, 170a, 170c, 200a, 200d, it is possible to apply to the face of the tablecloth, different products separately and so to increase the capacities for using the device according to the invention.
  • adjustment means which may for example consist of a "Meyer” bar, as well as devices having different pipes and / or stop valves so as to allow the injection of the product to be deposited on the sheet as well as to regulate or control the circulation of different fluids such as for example cleaning fluid.
  • this roller 400 has, on a part of its envelope 401, a set of orifices 409, arranged in staggered rows, opening outwardly and communicating internally with a product supply chamber 410.
  • this supply chamber 410 is equipped with two elements 403-404, one of the ends of which comprises a buffer 405 delimiting a supply core 408, which each constitute a supply delimiter mounted movable transversely to the interior of the chamber 410, according to an adjustable and adjustable stroke, as illustrated in FIG. 16, or alternatively, of three elements 406a, 406b, 406c, one of the ends of which also includes a buffer, and which each constitute a delimiter d 'supply by delimiting two supply cores 411, 412, the stroke of which is adjustable and adjustable as required as is more particularly in FIG. 17.
  • the bar feeder 400 When the ply to be coated is not treated, the bar feeder 400 is in a rest position, illustrated in dotted lines in FIG. 15, so that the coating device is outside the ply.
  • the coating product is delivered as and when required on the traveling web so that, to stop the coating instantly over all or part of the width of the said web, it suffices to stop the feed pumps and thus an end-of-order control is carried out which is very precise. Furthermore, the operating stoppages do not lead to any overflow of the product or soaking of the paper capable of weakening the web, which makes it possible to manufacture a product and in particular a quality corrugated cardboard.
  • the product is not in contact with said ply until its final application.
  • the substrate tends to absorb one of the components of the coating product more easily, to avoid an imbalance of the formulation since the product coating is constantly renewed, which was not the case with conventional devices commonly used by those skilled in the art of the "doctor blade" type where the coating product reservoir is constantly in contact with the substrate.
  • the quantity of product deposited is also regulated using a "Meyer” bar or “Champion” bar system which rotates in the opposite direction from the running of the paper.
  • a greater or lesser amount of the product is scraped and therefore good control of the coating layer deposited on the moving web is obtained.
  • the device it is also possible to equip the device, according to the invention, with a flexible metal or plastic doctor blade so as to achieve a better distribution of the layer of product deposited on the traveling web.
  • the excess product is then recovered via an underlying groove 418 formed in the cylinder 407 and which opens into a conduit communicating with a receptacle for recovering this product, which limits the risks of pollution.
  • Manual adjustment means for example by means of a steering wheel, or else controlled by information processing means, such as an automaton with display, are provided to move the elements constituting the delimiters d 'feed 403, 404, 406a, 406c, inside the feed chamber 410 so as to coat the web in movement over a desired width.
  • the supply chamber 410 of the cylinder 407 is connected to supply circuits 420, 430, 440, 450 and 460 associated with pumps 470, 480 and 490.
  • circuits 420 and 430 are connected to a supply pump 470 and they each comprise, at their inlet, an all or nothing valve 500, 510, of a conventional and known type, which allows them to be opened or closed by according to needs.
  • circuits 440, 450 and 460 are connected, on the one hand to a drain pump 480, and on the other hand, to a supply pump 490 and, they are also equipped at their inlet with a valve. with several channels 520, 530 and 540, which makes it possible to have an adjustable regulation of the circulation of the products to be coated and / or to be impregnated, in particular in combination with circuits 420 and 430. In fact, it is entirely conceivable to supply one of the circuits 420 or 430 with products while providing a supply in one of the pending circuits 440, 450, 460.
  • the supply of product to the supply chamber 410 is stopped by means of the circuits 420, 430 by stopping the operation. of the feed pump 470. There then occurs an immediate cessation of the coating of this product since it no longer arrives in the feed chamber 410 in the feed cores.
  • the drain pump 480 is then started, after the opening of the valves 520, 530, and 540, to remove the product still present inside the supply core of the supply chamber 410 and then the the supply pump 490 is put into operation after having opened the circuits corresponding to the valves 520, 530, 540 so as to fill the interior of the chamber 410 with the new desired product which one wishes to coat on the moving web .
  • the control of the various valves is a function of the position of the supply delimiters 403-404, 406-406c inside the chamber 410 and, it is in particular possible to regulate and adjust the position of the buffers by means of means of processing information, such as a programmable controller, during the emptying operation by the emptying pump 480 since the volume contained inside the cores is a few liters and that this operation requires a relatively short emptying time .
  • the supply chamber 410 is equipped with three delimiters 406a-406c, and, the core is supplied with products, by the circuit 420, the valve 500 of which is open, by via the supply pump 470, the circuit 430 being in turn not supplied with functional products since its valve 510 is closed.
  • the water for humidification is supplied to the interior of the core via the pump 490 by means of circuits 450 and 460, the valves 530 and 540 of which are open.
  • the valve 520 of the supply circuit 440 is in the closed position so that it does not allow the introduction of a product inside this part of the core.
  • the supply of the core with functional products could also be obtained by means of the circuit 440, the valve 520 of which would be open, the water arriving, in this case, by means of the circuit 430, the valve 510 of which is open inside the core, the other valves 500, 530 and 540 remaining closed.
  • the pump 480 empties the core 412 via the line 430, the valve 520 of which is open while the valves 530 and 540 of the circuits 450 and 460 are closed so as to conserve the water contained inside the core 412.
  • the pump 490 is ready again to supply this core with a desired product.
  • the coated product is disposed only over a portion of height corresponding to the location of the label.
  • the supply chamber 410 has transversely adjustable shutters constituted for example by tubes able to control the transverse permeability of the orifices 409, and consequently, the width of the deposited layer and which are surrounded by tubes 620, 630 , 640, 650 pierced with holes parallel to each other and spaced apart by a determined pitch, being able to be movable in rotation relative to the transverse shutters.
  • the tubes 620 and 630 are arranged so as to allow the placement on the sheet of material in continuous movement of a product, for example anti-abrasive, in the areas marked A, B, and C in this figure according to a suitable width and, the tubes 640 and 650 allow the establishment, in zones E and F, of a layer of water so as to give the tablecloth a dryness uniform notably avoiding its deformation.
  • a product for example anti-abrasive
  • zones E and F coating products different from that deposited in zones A and B and C, depending on the applications and needs, which makes it possible to increase the capabilities of using the device.
  • FIG. 19 it is also conceivable to have recourse to a cylinder 407 which comprises two supply chambers 413-414 equipped inside each of them with supply delimiters mounted movable, according to an adjustable stroke and adjustable in translation.
  • a cylinder 407 which comprises two supply chambers 413-414 equipped inside each of them with supply delimiters mounted movable, according to an adjustable stroke and adjustable in translation.
  • the cylinder 407 can be easily raised in temperature, so as to keep certain products such as paraffins melted or to heat, substantially near the boiling temperature, products which must then be evaporated, by different types of means, such as for example, by means of steam heating cylinders or by the injection of hot air or else the installation of infrared ramps.

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  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (7)

  1. Vorrichtung (1) zur Beschichtung und/oder Imprägnierung einer sich kontinuierlich bewegenden Materialbahn (2) mit einer Flüssigkeit oder einem pastösen Medium, umfassend Auftragmittel (4) zum Auflegen einer Schicht (5) des genannten Produkts wenigstens zum Teil auf eine Fläche (6) der genannten Bahn, die aus einem Vorratbehälter (7, 70, 407) bestehen, der einen durchlochten Bereich (8, 21, 80) umfaßt und über einen Teil seines Mantels eine Reihe Löcher (9, 90, 409) umfaßt, die an der Außenseite enden und an der Innenseite mit einer Produktzufuhrkammer (10, 110, 410) in Verbindung stehen, deren Oberfläche einstellbar ist, dadurch gekennzeichnet, daß:
    - der genannte Vorratbehälter (7, 70, 407) mit der zu beschichtenden und/oder zu imprägnierenden Fläche (6) in Berührung gebracht wird, um den die genannte Bahn (2) umgeleitet wird,
    - der genannte Vorratbehälter (7, 70, 407) als ein fester Zylinder ausgestaltet ist, der wenigstens zwei Zufuhrbegrenzungselemente (141, 142, 140a, 140b, 140e, 140f, 150a-150c, 200a-200d, 300, 403, 404, 406a-406c) umfaßt, die geeignet sind, in Längstranslation bezüglich des Körpers des Vorratbehälters verstellt zu werden und wenigstens einen Bereich der Imprägnierung und/oder Beschichtung der sich kontinuierlich bewegenden Bahn mit wenigstens einem Produkt zu begrenzen, sodaß die Breite der aufgelegten Schicht eingestellt wird,
    - die genannte Vorrichtung (1) stromabwärts der Auftragungsmittel aufgestellte Mittel (15, 16, 17, 415) zum Abstreichen der beschichteten Bahn, um die Auflage des genannten Produkts gleichmäßig zu verteilen und im Bereich des Vorratbehälters (407) eine Nute (418) zum Wiederauffangen der Produkte, sodaß die Dicke der Schicht eingestellt wird, umfaßt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der genannte Vorratbehälter (7) als ein fester Zylinder ausgestaltet ist, der in seinem Innenteil ein Radialverschlußrohr (11) umfaßt, das geeignet ist, die Durchläßigkeit in Radialrichtung der Reihe Löcher (9) und, demzufolge, die Dicke der aufgelegten Schicht zu kontrollieren.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der genannte Vorratbehälter (7, 12) in seinem Innenteil wenigstens ein Querverschlußrohr (141, 142, 143) umfaßt, das geeignet ist, die Durchläßigkeit in Querrichtung der Reihe Löcher (9) und, demzufolge, die Breite der aufgelegten Schicht zu kontrollieren.
  4. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Vorratbehälter (7, 12) aus wenigstens einer Einheit aus drei koaxialen Rohren (11, 12, 14) besteht, wobei das erste, äußere Rohr (12) mit einer Vielzahl von regelmäßig von einander beabstandeten Radiallöchern (9) durchlocht ist, das zweite, in dem ersten (12) passende Rohr (11) mit einer Vielzahl von parallel zueinander verlaufenden, um einen den Löchern (9) entsprechenden Abstand von einander beabstandeten Ringnuten (13) durchbohrt und geeignet ist, in Drehung bezüglich des ersten Rohres (12) verstellt zu werden, das dritte, in dem zweiten (11) passende Rohr (14, 141, 142,) eine Innenleitung definiert, die die genannte Produktzufuhrkammer (10) bildet, und geeignet ist, in Längstranslation bezüglich des zweiten Rohres (11) verstellt zu werden.
  5. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der genannte Vorratbehälter (70) aus wenigstens einem ersten, mit einer Vielzahl von regelmäßig von einander beabstandeten Radiallöchern (90) durchlochten, äußeren Rohr, in dem ersten Rohr passenden Verschlußmitteln (110), die geeignet sind, bezüglich des genannten Rohres in Drehung verstellt zu werden, und wenigstens einem im Körper (120) eines Zufuhrkerns passenden Zufuhrbegrenzer (140a, 140b, 140e, 140f, 150a-150c, 200a-200d, 300) besteht, der einen inneren Hohlraum definiert, der die genannte Produktzufuhrkammer (110) bildet, und geeignet ist, in Längstranslation bezüglich des genannten Körpers (120) verstellt zu werden.
  6. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Vorratbehälter (407) Querverschlußelemente aufweist, die geeignet sind die Durchläßigkeit in Querrichtung der Löcher (409) und, demzufolge, die Breite der aufgelegten Schicht zu kontrollieren und mit Rohren (620, 630, 640, 650) zusammenwirken, die mit parallel zueinander verlaufenden und um einen bestimmten Abstand von einander beabstandeten Löchern durchlocht sind.
  7. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Auftragmittel Mittel (416) zum Vorheizen der zu beschichtenden und/oder zu imprägnierenden, sich bewegenden Bahn umfassen.
EP19930490013 1992-06-30 1993-06-29 Vorrichtung zur Beschichtung und/oder Imprägnierung einer sich kontinuierlich bewegenden Bahn mit einer Flüssigkeit oder einem pastösen Medium Expired - Lifetime EP0577539B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08/121,343 US5490879A (en) 1992-12-17 1993-09-14 Device for coating and/or impregnating a continuously moving band of material with a liquid or pasty product
JP14777294A JPH07275763A (ja) 1993-06-29 1994-06-29 連続走行帯材に液状やペースト状の成品を被覆及び／或いは含浸させる装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR9208643A FR2692818B1 (fr) 1992-06-30 1992-06-30 Dispositif enducteur et/ou imprégnateur d'un produit liquide ou pâteux sur une nappe de matériau en défilement continu.
FR9208643 1992-06-30
FR9215665A FR2692819B1 (fr) 1992-06-30 1992-12-17 Perfectionnements au dispositif enducteur et/ou imprégnateur d'un produit liquide ou pâteux sur une nappe de matériau en défilement continu.
FR9215665 1992-12-17

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EP0577539A1 EP0577539A1 (de) 1994-01-05
EP0577539B1 true EP0577539B1 (de) 1997-07-16

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US5997645A (en) * 1995-05-24 1999-12-07 3M Innovative Properties Company Inserts for stripe coating
CN106573267B (zh) 2014-04-04 2020-02-14 惠普印迪戈股份公司 流体施加
CN112044674A (zh) * 2020-09-08 2020-12-08 江西春光新材料科技股份有限公司 一种涂布量可调的辊式涂布设备

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US2101464A (en) * 1936-08-14 1937-12-07 Arndt Paul Adhesive applying device
DE2511336C3 (de) * 1975-03-14 1980-04-10 Freundorfer Kg, 8000 Muenchen Verfahren und Einrichtung zur Durchführung eines Behandlungs- oder Herstellungsvorganges an mindestens einer der Oberflächen eines bandartigen, flexiblen Trägermaterials unter Verwendung einer Behandlungsflüssigkeit, insbesondere zum Galvanisieren
SU1087194A1 (ru) * 1982-07-02 1984-04-23 Всесоюзный Государственный Ордена Трудового Красного Знамени Научно-Исследовательский И Проектный Институт Химико-Фотографической Промышленности Устройство дл нанесени жидкости на издели
DE3423250A1 (de) * 1983-06-30 1985-01-10 Mathias 4815 Schloss Holte Mitter Verfahren und vorrichtung zur auftragung eines stroemungsfaehigen, insbesondere geschaeumten mediums auf substrate
DE4000405A1 (de) * 1990-01-09 1991-07-11 Hoechst Ag Verfahren und vorrichtung zum gleichmaessigen aufbringen eines fluids auf eine bewegte materialbahn

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FR2692819B1 (fr) 1995-01-13
DE69312177D1 (de) 1997-08-21
FR2692819A1 (fr) 1993-12-31
EP0577539A1 (de) 1994-01-05

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