EP0496860A1 - Procede et dispositif pour deposer, appliquer par pression ou eliminer des liquides ou des substances - Google Patents

Procede et dispositif pour deposer, appliquer par pression ou eliminer des liquides ou des substances

Info

Publication number
EP0496860A1
EP0496860A1 EP91914555A EP91914555A EP0496860A1 EP 0496860 A1 EP0496860 A1 EP 0496860A1 EP 91914555 A EP91914555 A EP 91914555A EP 91914555 A EP91914555 A EP 91914555A EP 0496860 A1 EP0496860 A1 EP 0496860A1
Authority
EP
European Patent Office
Prior art keywords
work roll
roller
liquid
roll
jacket
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.)
Withdrawn
Application number
EP91914555A
Other languages
German (de)
English (en)
Inventor
Johannes Zimmer
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0496860A1 publication Critical patent/EP0496860A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
    • D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
    • D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
    • D06B1/143—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller where elements are used to mitigate the quantities of treating material on the roller and on the textile material

Definitions

  • the invention relates to a method and devices associated therewith for applying and / or pressing in or for removing aqueous liquids or free-flowing substances onto a surface or a web-like, in particular textile material (1) or from such a material by means of an on this surface or web pressed roller (18) (transfer roller, work roll, take-off roll).
  • the liquid or flowable substance can be water, e.g. when a web, a sheet-like structure, a roller or the like. should be moistened or dehumidified.
  • the liquid can also contain any chemicals or dyes, impregnating agents and the like, or also solids, or can also be foamed.
  • the special task of this invention is to bring about this application or removal process with the greatest possible uniformity and the best possible determinability of the amount of substance to be applied or removed, taking into account any desired deep effects and at the same time gentle material treatment.
  • the required contact forces are preferably generated by electromagnetic effects, but the method and the devices according to the method are not limited to this, however, other forces can also be used according to the invention.
  • Substances are applied using magnetically pressed rollers known. It is known to use magnetically pressed application rollers which are either immersed in a liquid or fed by a feed roller. In both cases, a liquid film is formed on the surface of the application roller, which the application roller releases at the point of contact. A liquid supply can also be formed in the gusset formed in front of the contact point.
  • an application roller of smaller diameter does not apply much substance and that the larger the roller diameter chosen, the more substance is applied.
  • Lower or stronger contact pressure of the application roll causes e.g. on a textile fabric different depth effect, but the application rate is essentially determined by the diameter of the application roller.
  • the surface quality of an application roll also affects the quantity.
  • Application rolls with a structured, grained, engraved surface or with a wire winding usually apply more substance than rolls with a smooth surface;
  • the nature of the application substance, its adhesion and the absorption capacity of the substrate influence this type of quantity determination.
  • the object of this invention is a method or devices for IXoxh Entryug this method for quantity-sensitive application or removal of flowable substances on or from a product web (product, sheet-like structure, roller or the like).
  • the invention offers great versatility in its application possibilities and enables precise adjustability and, in addition, reproducibility of all process-technically important parameters.
  • a roller or roller which is preferably attracted or pressed on directly or indirectly by magnetic force acting on this roller, has a strong influence on the application performance, or in reciprocal application, by measures according to the invention, which are combined with the aforementioned means and measures. the substance withdrawal or the fluid absorption performance. A method or a device of this type and with different possible modes of operation has not yet been disclosed.
  • the working method according to the invention or the device associated with this method is characterized in that this working roll (18) has a liquid-absorbing, storing, transporting and pressure-releasing surface over the entire working width and that either the working roll (18) or the surface (21 , 27, 29, 39, 71) is covered over the entire working width by an absorbent and / or compressible jacket (8) and that the presence of a liquid or flowable substance (7) on or in the roller jacket (8) or on the surface or on or in the material web, provided that the liquid-applying or liquid-degerminating, quantity-controllable transfer process is brought about by covering the work roll (18) or the surface (21, 27, 29, 39, 71) ( 8) in the operating state during the rotation of the work roll (18), ie at least once on each circumferential line of its circumference, by compressing the work roll (18) against the surface (21, 27, 29, 39, 71) in a region (in a zone) of the jacket (8) and then releasing the pressure again, and that the contact pressure, the strength of
  • the above-described second process step which either effects substance uptake or substance withdrawal, can e.g. by means of a tangentially adjacent or pressed surface, e.g. a flexible plate can be effected.
  • a roller can also be arranged; such a roller can (for example in FIGS. 3 and 5) also be designed as a load roller or at most as a drive roller or at most as a magnetic roller.
  • the procedural main fiction or pressure of the work roll on e.g. the web on which e.g. the application or from e.g. the liquid or moisture is removed, can be effected by means of an attractive magnetic force acting on the work roll when the counter roller or counter surface against which the work roll is pressed, as a magnetic roller (Fig. 1 to 4 and Fig. 6) or as a magnetic table or magnetic bar with a flat or rounded sliding surface (as in Fig. 2 and Fig. 5).
  • the work roll can also be pressed against a second adjacent jacket area; at most, this is possible in addition to the previously described contact pressure caused by magnetic attraction.
  • This - if necessary additional - contact pressure can either be done by a roller (Fig. 7) or, for example, by a beam that bears against the work roll with an, for example, curved sliding surface in the second area of the contact surface (as shown in Fig. 6).
  • the pressure of this just mentioned, slide bearing-like beam can for example by mechanical, hydraulic, pneumatic or the like. Forces occur.
  • the above-described pressing on a second contact area of the work roll can also be effected by means of magnetic force (magnetic roller in FIG. 7, slide bearing bar in FIG. 6, which can also be designed as a magnetic bar).
  • Such a pressure-bearing-shaped pressure bar can also be pressed by means of lever transmission, the force acting on this lever transmission e.g. can be effected hydraulically, pneumatically or magnetically, as shown in FIG. 10. It is also possible to divide the pressure force acting on the pressure beam over its length or working width into several pressure zones.
  • this cladding layer Due to its compressibility and its liquid-storing properties, this cladding layer can bring about an additional comparative effect.
  • an additional amount of liquid can also be applied to this roll or into this additional jacket layer of this roll by means of an added second liquid application device.
  • This second substance application device can in turn also be one in which the auxiliary pressure required for the transmission process is brought about by magnetic force.
  • What is new in the present invention are the extremely versatile applications, such as metered application of a liquid or a paste on a textile web or on a paper web, dewatering squeezing a previously immersed textile web, additional dehumidification of a moist textile web or moistening a textile or paper web.
  • the actual work element is provided with an absorbent and compressible uranium coating, i.e. is coated with such material and that this role performs not only one work function but at the same time several work instructions, for which the elements surrounding or touching the role are used in the manner according to the invention.
  • the same role in one coat area can absorb a definable and controllable amount of substance uniformly over the entire respective application range and release this amount of substance at another point, but both coat areas, by selectively and alternately possible adjustability of the arprefikkraft, storm the application amount, and both of which are interdependent. Reciprocally, the same is possible when taking liquids from a wet or moist web.
  • the conventional squeezing known from the prior art function of a press roll, secondly on the l ⁇ nd of the Preßz ⁇ ne an additional dehumidification in that an additional amount of liquid is withdrawn from the web and transferred into the sheathing material of the work roll during the release of the press pressure and consequently also the decrease in volume-reducing compression of the absorbent jacket.
  • This increase in dehumidification has an energy and therefore cost-saving effect compared to the known prior art. All of these work functions are carried out with width uniformity which can be regulated in zones according to the invention.
  • a further economic advantage arises from the simple interchangeability of the work roll or, if need be, only the sheathing of the work roll.
  • the arrangement according to the invention can be controlled directly by an automatically operating measuring and control impulse basis weight or moisture measuring device and thereby, over the full width as well as zone by zone, to differently sized working effects, i.e. Performance, be adjusted; this without restricting the contact continuity, i.e. seen across the entire width, as e.g. cause known by the prior art zone-wise pressing roller pairs.
  • the contact pressure can be generated by a magnetic field or by any mechanical, i.e. hydraulically, pneumatically, etc., actuated mechanical devices can be effected, new devices or arrangements according to the invention being presented both for the magnetically and mechanically effected contact pressure.
  • FIGS. 6 and 10 which further develop the main principles of the invention, a novel combination is additionally presented, which characterizes the invention.
  • a work roll encased with an absorbent and compressible material or with a liquid-transporting surface on its jacket is placed in an open slide bearing beam, which consists of one or more parts can be carried out, stored and pressed by this to the counter-roller.
  • the counter roller can be a so-called magnetic roller, for example.
  • a combination or an optional use of the contact pressure is possible.
  • Another new form of arrangement which is possible according to the invention is that two such magnetic rollers act together on the same work roll in different directions of force.
  • this slide bearing beam can be divided into pressure zones, as is characteristic of the invention, and can replace the second pressure counter-roller in a second condition.
  • the plain bearing beam can be pressed against the work roll or, for example, interacting with it against the counter roll by means of a pneumatically or hydraulically operated device, which is divided, if necessary, in increments; however, the contact pressure can also be introduced - characterizing the invention - by means of lever replacement, whereby in a further embodiment of the main principle of the invention the force acting on the longer, free-standing lever arm can be generated by a magnetic field (FIG. 10).
  • a so-called application of magnetic force for effecting the pressing of a roller or roller without a bearing on the circumference of a bearing, via a plain bearing bar, is unknown according to the prior art and is fundamentally important for the technically and economically advantageous application of the main principles of the invention; in economic terms because of the possible saving of the high costs for not only one but even for two magnetic rollers and in technical terms because the electromagnetically caused pressure is carried out via a lever system, whereby this magnettech nisch caused contact force can be multiplied and because the electromagnetically generated contact pressure can be controlled in a zone-wise division immediately, that is, electrically and immediately becoming effective, which in the known zone contact control systems according to implementation via hydraulic systems inside a roller and roller deformation does not happen quickly and with this exact effectiveness is possible.
  • the plain bearing beam can be made in one piece (or in several parts) instead of from a rigid and flexurally rigid material which is customary in technology and instead of being divided in zones over the working width, also from a material which can be deformed under bending conditions. This allows the slide bearing beam to optimally adapt to the work roll.
  • the inventive principle of using, as a pressing element, a roller or roller of relatively small diameter, which is designed without a bearing and is mounted on at least one jacket area zone and is designed for liquid transfer and with correspondingly relatively easy to achieve bendability against an axially mounted roller of larger diameter, adapting to it. is thus cpti ⁇ mized by a slide bearing beam made according to the invention from relatively easily bendable material, as described above.
  • the invention which is characterized by a number of different inventive characteristics, can be used by means of different configurations, all of these possible, different configurations being able to be implemented by an incredibly simple construction.
  • Substances which supply or remove substances can be integrated into a device constructed according to the invention;
  • the work roll can also be driven axially, with the same initial speed or with friction to the counter roller or to both counter rollers, if two are present and both are driven;
  • a preferred drive variant is that the counter-roller is driven axially and this drives the working roller through the circumference of the jacket by pressing on the jacket. If a second counter roll is available, it can be driven circumferentially by the work roller. The friction caused thereby can on the one hand favor the mode of operation or the function and bring about a further reduction in the production costs, since only a single application of force is required to drive two or possibly even three rollers.
  • the drive and possibly also the contact pressure can also be introduced via a third jacket zone area, the then a total of three jacket contact zones with preferably approximately 120 ° division on the work roll (FIG. 5).
  • the magnetic field generating device is equipped with an adjusting or Sliding device for changing the position in relation to the free, magnetized parts of the lever arms assigned to the magnetic field.
  • the drawings illustrate the invention in a few examples and describe it below. 1 to 17 show different execution forms.
  • FIG. 1 shows a work roll or roll 18 held axially movable in at least one direction and made of a magnetizable, circular or solid cylindrical roll body, which is surrounded by a compressible roll shell 8 made of absorbent material, and is applied to a surface or by means of magnetic force. Roller is tightened or pressed.
  • this surface is the jacket of a hollow cylinder 16, in the interior of which a magnetic field is present.
  • the compressible, absorbent roller shell 8 is compressed (compressed) in the contact area with the hollow cylinder 16.
  • the work roll 18 dips with the lower part of its cross section or the absorbent, squeezable roll shell 8 into the substance 7 to be applied, which is thereby absorbed by the absorbent roll shell 8 and is caused by the rotary movement or initial movement of the hollow cylinder 16 and the magnetic field acting therein (short Magnetic roller) brought to bear on this and set in the same direction by frictional friction.
  • the most important parameter for determining the desired amount of application is the strength of the magnetic force generated by the magnetic field or by the magnetic force generated contact pressure of the work roll 18 against the magnetic roll 21.
  • the above-described operation can also be used to remove a liquid of any desired amount from a surface or a web.
  • the device according to the invention shown here shows astonishing simplicity in its construction and mode of operation.
  • An additional possible embodiment of this basic idea of the invention consists in that the device generating the magnetic field can be divided into a plurality of magnetic field units which can be set independently of one another or regulated in parallel and can thus also be controlled in an automated manner.
  • This additional or expanding configuration can make it possible, even on webs or pieces of uneven width, length, such as e.g. uneven thickness or density, to achieve the required application or acceptance uniformity.
  • a second elastic plate 90 can be arranged against the work roll 18 under pre-tension, which serves as a counter pressure surface.
  • the substance supply can also be provided in that the substance is fed into the gusset between plate 90 and work roll 18, which may make the use of a trough unnecessary.
  • This measure can be modified in a further embodiment according to the invention in such a way that the pretensioning force of the resilient contact increases and thus the outer area of the roller shell 8 or the outermost layer of the roller shell 8 of the work roller 18, which is made of absorbent material, which is only marginal for carrying the AI The amount most important is to be slightly compressed, creating part of the outer area of the whale zenmarrtels 8 substance or liquid 7 from the doctor blade.
  • the measure proves to be equally advantageous for the removal of substance or liquid from or from the material web 1.
  • the above-described additional device or measure may in no case be equated to one of the numerous types of doctor blades known in the prior art.
  • the doctor blades known in the state of the art are characterized in that the outermost doctor blade edge lies against the surface to be doctored, be it for the purpose of cleaning a roller or doctoring e.g. an engraved roller surface or be it for a coating-type doctoring process or for stencil application.
  • a compressive doctoring of an absorbent, e.g. Roll mantles made of textile material with a tangential plate are not yet known.
  • Fig. 2 shows that instead of the working surface on the hollow roller with the magnetic device located therein, as shown in Fig. 1, a (combined) working surface connected to a magnetic device can be used, e.g. a magnetic bar 29.
  • a (combined) working surface connected to a magnetic device can be used, e.g. a magnetic bar 29.
  • This simplifying measure requires a stretch-stable web 1 or a driven work roll 18 (shown reduced).
  • roller 24 is provided, which is deposited, for example, by means of axle journals in an inclined guide 25 and, for example, bears against the work roll 18 with its own weight.
  • the substance 7 in the trough 20 and the absorbent roller jacket 8 of the work roll 18 slightly compressing, adjacent roller 24 can be designed permanently magnetically or equipped with permanent magnets, by what measure the contact pressure and the resulting removal of substance 7 from the Jacket enlarged and thus the application amount to be achieved is reduced.
  • the roller 24 can also be designed as a magnetic roller. Following the rotational movement, the work roller 18 first removes the surface-lying component and also a portion of the substance 7 stored in the absorbent jacket by the magnetic roller and returns it to the trough.
  • This double-acting measure corresponds to the so-called pre-metering in the working method according to the invention, i.e. a preparatory quantity control or the metering of the substance-transferring work roll on the magnetic roll.
  • the transfer is then carried out on the magnetic roller 21 (magnetically effected press zone) with the determination of the application quantity relevant for the application or application and application process according to the invention, this application quantity determination being also controlled by the contact pressure and the quantity control possibility with regard to the possible application quantity limit is dependent on or predetermined by the quantity of substance determined by the pre-metering process in the absorbent area of the roll shell 8 of the work roll 18.
  • the working method according to the invention is in its entirety staltaing possibility characterized in that on one and the same work roll 18, in their direction of rotation and in the spatial arrangement successively, two work functions, or one main and auxiliary work function, are performed.
  • Each of these two work regulations can be separately and, if necessary, divided over the width into contact pressure zones, ie each can be controlled individually or together as required (in accordance with the intensity).
  • the contact pressure can be effected electromagnetically and therefore its intensity can be controlled electrically, ie becoming immediately effective, which is also possible in automated process control technology.
  • the roller 24 for pre-metering, metering and doctoring preferably removes so much substance 7 or liquid that no liquid gusset forms at the application site.
  • Another working process technology according to the invention consists in that the device according to the invention described above, if necessary for applying a liquid or flowable substance to a surface-shaped structure, e.g. a web or e.g. is a transfer roller, can be used, as well as a device with the following this opposite effect enforcement.
  • a surface-shaped structure e.g. a web or e.g. is a transfer roller
  • a wet or moist web 1 (material web, conveyor belt) is fed to the device according to the invention, from which liquid or flowable substance 7 is removed by pressing the work roll 18 according to the invention and transferred into the jacket of the work roll 18; After further rotation, the work roll 18 in the second pressing area, in contact with the roller 24 or magnetrole, due to the relatively stronger pressing force and the resulting greater reduction in the pressure of the roller casing 8, the previously absorbed liquid or flowable substance 7 is again removed and, for example, in the trough 20 is provided with an outlet opening.
  • FIG. 4 shows a device similar to the embodiment shown in FIG. 1, which is particularly suitable for the removal or removal of rivers liquid or substance 7 from or from the Wareribahn 1 is suitable.
  • the axes of the work roll 18 and the magnetic roll 21 lie with the point of contact of the two rolls 18, 21 in a horizontal plane, the work roll is movable in the direction of the connection of the two axes. With this arrangement, the substance that is pressed by the contact pressure from or from the web 1 can drip into the trough 20 underneath.
  • Fig. 5 shows an application device according to the invention, which is designed so that instead of so-called magnetic rollers, so-called magnetic bars 28, 29 are used, one of which, 28, which performs the substance-carrying and predosing function, is formed with a flat sliding surface 30, which with the Work roll 18 together forms a trough for the substance 7 to be applied and a second iftalk bar 29, which causes the application process, with an eg rounded contact surface 40 causes the application process on the Wareri web 1.
  • a prerequisite for this type of procedure or type of application of a device according to the invention is that the web 1 is stable in expansion and can be moved with a sufficiently large tensile stress that is required to overcome the frictional forces.
  • this rotary motion can either be axially into the work roll by a drive 31 or auxiliary drive 18 or by means of an additional driven load roller 32 over the circumference in this case in a third jacket contact area.
  • the magnetic bar 29 can also be used for ent serve far from substance 7 from the Wareri web 1 wetted, for example, in an immersion bath.
  • FIG. 6 shows a further embodiment of a device according to the invention.
  • the spatial arrangement corresponds to the arrangement shown in FIG. 1.
  • a pressure beam 36 designed like a slide bearing is provided, which, as shown in FIG. 5 in an oblique arrangement, is also designed as a magnetic beam, i.e. can be equipped with a device 17 generating a magnetic field, but can also exert hydraulic or pneumatic pressure on the work roll 18.
  • the concavely curved surface which rests like a sliding bearing and is pressed against the work roll 18 takes on the same furikom as the elastic plate 23 in FIG. 1 or the oblique sliding surface 30 shown in FIG. 5 or as the roller 24 and shown in FIG. 3 in addition to this also the pressure on the counter roller 21 or on the web 1 guided over this roller. It is obvious that, provided that there is a sufficiently strong frictional force connection between the work roller 18 and counter roller 21 or web 1, the application of only one contact pressure is sufficient to to effect both pressures provided in accordance with the method, provided that this contact pressure is introduced into one of the two rolls or into the slide bearing-like design or vice versa into the roll effecting the goods transport, acting from the outside.
  • the pressure bar 36 can be movable and the roller 21 can be fixed or vice versa. If the pressure bar 36 is fixed and the roller 21 is movable, then gravity can also be used as the pressure force.
  • Fig. 7 shows a device according to the invention similar to the construction shown in Fig. 3, with the difference that the axes of the two rollers 21, 27 and the work roll 18 are arranged in one plane, so that on both sides of the work roll 18 a so-called roll roll 34, 35 arises. 7 one of these two gussets 34 is filled with substance 7. The side, on the rollers End faces or boundary plates (not shown) optionally arranged in the gusset area prevent the application liquid or substance from flowing out laterally. There are three different job restrictions; two the same as already described for Fig.
  • a third function is that a web 1, guided from top to bottom, mostly the gusset with application liquid or substance 7 immediately thereafter passes through the first pressing area and then the second pressing area, whereby a comparative and full penetration of, for example, a voluminous web can be effected.
  • the work roll 18 can also be used as a goods deflection roller or the web of material 1 can be guided over an additionally arranged deflection roller (not shown).
  • the roller 27 and the work roller 18 can be moved in the variant shown, while the roller 21 is fixed.
  • the pressure can be applied via the slide bearing beam 60, e.g. pneumatically, or the axle journals 61, 62, e.g. hydraulic, done.
  • magnetic contact pressure is preferred, for which purpose the rollers 21, 27 are designed as magnetic rollers and the work roller 18 consists of at least partially magnetizable material.
  • the use of magnetic rollers optimizes the process technology and saves mechanical pressing means and stable rollers.
  • FIG. 8 shows an embodiment according to the invention, which is based on the exemplary embodiment shown in FIG. 6.
  • the plain bearing body 3 is not shaped as in FIG. 6 with a wide open plain bearing surface but with two closely surrounding plain bearing surfaces.
  • This design variant enables the work roll 18 to be provided with a covering 8 which has only low sliding properties or low abrasion resistance, or is compressible and, for one of these reasons or for any other reason, is not slidably mounted directly in the pressure bearing-like pressure bar 36 shall be.
  • the cavity 55 is filled with an application liquid and the work roll 18 is coated with the compressible, liquid-absorbing jacket 8 and the liquid absorbed by this jacket in the area of the liquid chamber 55 is in the existing between the work roll 18 or its Itonantelung 8 and the slide-bearing roller 48 Pinch joint partially squeezed out again. This part thus remains in the space 55.
  • the part of the liquid remaining in the casing intended for application is transferred in the pressure area of the work roll 18 to the counter roll 39 to the Wareri web 1.
  • the roller 48 thus assumes the function of the tangentially abutting plate 23 shown in FIG. 2; this with the advantage of the precisely controlled contact pressure, the intensity of which is exactly half as large as the contact pressure of the work roll 18 against the counter roll 39.
  • the roll 39 may or may not be designed as a magnetic roll and could also be replaced by a magnetic bar.
  • FIG. 9 shows an embodiment variant similar to the embodiment of FIG. 3 with two permanently mounted magnetic rollers 21, 27, one of which 27 extends into a trough 20 with substance 7 and metered substance 7 onto the work roller 18 and the other 21 obliquely above or serves diagonally next to it as a guide for the Wareri web 1 and as a counter roller for the metered application of substance 7 from the work roller 18 onto the product web 1. Due to the magnetic attraction of the work roll 18 from two sides by means of the magnet devices 2 located in the magnetic rolls 21, 27, no axle journals are required on the work roll 18 for holding or positioning. If no magnetic force acts on the work roll 21, it rolls off into a collecting device 63.
  • Fig. 10 shows, continuing the construction idea shown in Fig. 6, a further embodiment of this construction according to the invention consisting of a new application of magnetically caused contact pressure.
  • the application of the contact pressure to the contact bearing 36 which is designed like a sliding bearing, takes place instead of directly by means of lever transmission.
  • the magnet device can be dimensioned relatively small and inexpensive.
  • electromagnetically generated contact pressure offers the significant technical and economic advantage of considerably shorter reaction times when controlling process-related - possibly zone-wise - changes in the contact pressure that are required compared to hydraulically or pneumatically effected contact forces.
  • the pressure can also be hydraulic or pneumatic (not shown).
  • FIG. 11 shows a further important additional measure which can be added to each of FIGS. 1 to 10 if the corresponding requirements or the need for this is present.
  • FIG. 12 shows a detail of the substance supply similar to FIG. 9.
  • the substance 7 to be applied is here via a plate-shaped supply ledge 64, in which a liquid width distribution device is installed, brought into the space between the work roll 18 and the pre-metering magnetic roll 27.
  • a plate 65 can be provided as an auxiliary device for the introduction of the web 1 between the magnetic roller 21 and the work roller, which also acts as an accident protection device.
  • FIG. 13 shows an embodiment variant similar to FIG. 8.
  • the difference lies in the fact that the axes of the work roll lie in a horizontal plane with those of the force transmission rollers 53, 54.
  • the rollers 53, 54 have separate, lateral sliding bearings 66, 67.
  • the plain bearing 67 of the roller 54 is fixed, for example in the trough 20, while the plain bearing 66 of the roller 53 is horizontally displaceable.
  • the pressing force determining the amount of substance during the pre-metering is applied to this displaceable slide bearing 66.
  • 14 shows a combination of two devices according to the invention, of which, for example, one can wet the Wareri web 1 and the other can subsequently apply a substance or two different substances can be applied in succession.
  • the device shown on the left is similar to that of FIG. 3, the roller 24 being replaced by a magnetic roller 27 for pre-metering.
  • liquid or substance is removed or evacuated from the material web 1 or applied or introduced.
  • the device shown on the right applies substance or presses it into the web 1.
  • the substance 7 is brought from a plate-shaped feed bar 64 according to FIG. 12 to the metering rollers 68, 69, from where it is transferred to the work roller 70, which, as described above, brings it to the Wareri web 1 guided over the counter roller 71 presses into this.
  • 15 shows a further embodiment variant.
  • a roller 81 which enables low-friction rolling of the work roller 18 lying thereon.
  • a brush strip 82 downstream of the point of contact with the counter roller 21, on which the material web 1 is guided, in the running direction of the work roller 18 ventilates and cleans the work roller 18 and exerts back pressure on it.
  • the work roll 18 can be pressed against the counter roll magnetically or by pressure on the movable slide bearing 80.
  • a movable plain bearing bar 85 with a roller 84 which presses with its own weight or with pneumatic, hydraulic or mechanical pressure, prevents the work roller 18 from deflecting sideways.
  • a web 1 is guided over the surface of a roller 21.
  • This roller 21 serves as a support body and the material web 1 loops part of the surface of this roller.
  • the axis of a second roller 27 lies parallel to the axis of the roller 21 and a work roller 18 is arranged between these two rollers 21 and 27.
  • This work roll 18 is circumferentially supported on the two rolls 21, 27, ie when the roll 21 and / or 27 rotates, the work roll 18 is rotated.
  • the work roll 18 is provided with the roll shell 8, for example made of felt, the thickness of which is shown here in a greatly exaggerated manner.
  • the two rollers 21 and 27 are designed as cooling rollers and in their interior there is an electromagnet 2, 3, the pole face of which is directed against the work roller 18.
  • the electromagnets can optionally be pivoted. Since the work roll 18 either consists entirely of a magnetizable material or contains such a magnetizable material, the work roll 18 can be pressed against the surface of both the roll 21 and the surface of the roll 27 by generating a magnetic field.
  • the pressure can be regulated by the magnetic strength and in the present case it can be seen that the pressure on the roller 21 is stronger than on the roller 27.
  • the substance 7 to be applied is pressed into the roller shell 8 on the roller 27, then transported to the roller 21 and squeezed out here again. The pressing can take place on or into the web 1, but also on the surface of the roller 21, which can be a transfer roller.
  • the substance to be applied is transported through the work roll 18 to the web 1 supported on the roll 21 and there applied to this.
  • the surface of the rollers 21 and 27 can be a steel surface, optionally made of stainless steel or chrome-plated, or it can also be a rubberized or textile-covered surface.
  • the magnetic field setting should have an inverse relationship to one another, and the direction of rotation or the product loosening direction should also be reversed as drawn.
  • the work roll 18 can also be assigned a drive in addition to the peripheral bearing, so that the speed of rotation of the work roll 18 can be increased or decreased.
  • the work roll 18 can also be used as a power transmission element.
  • the pressing of the work roll 18 against the rolls 21 and 27 or against the beams 28 and 29 does not necessarily have to take place via magnets. There is also the option of performing the pressing mechanically, pneumatically or hydraulically.
  • FIG. 16 shows a further embodiment of this device which is designed in accordance with the invention.
  • the last applied to the web 1 magnetic roller 21 is additionally with a compressible, surround liquid-storing coats 41, which has an additional, comparative effect.
  • additional substance application device 42 can also be used to apply substance, the contact pressure required during the transmission process also being able to be brought about by magnetic force.
  • FIG. 17 shows a device according to the invention with two magnetic rollers arranged axially parallel and at a distance from one another in the horizontal plane, the same device nevertheless permitting the working functions shown and described in FIG. 7 and in FIG. 16:
  • the work roll 18 is pressed beneath the gap between the two magnetic rolls 21, 27 on both magnetic rolls or is magnetically pressed against both.
  • This inventive configuration enables the work roll 18 to be immersed in the application liquid or flowable substance which is located in the trough 43 arranged below the roll 18.
  • spray nozzles 44 which, in addition to the moistening, also cause the surface of the work roll to be continuously cleaned of traces of substance or impurities which are removed by the work roll from the surface to which the application process takes place and should not be transferred to the application area again and should not stick to the surface of the work roll because this would cause malfunctions.
  • the material web can preferably be moved in the direction of the arrow 45, and if it is arranged above, in the direction of the arrow 46.
  • the working roller can be stripped or pre-metered through the surface 47 of the carrier 43; in this case, the surface 47 becomes identical to the plate 23, roller 24, roller 27 or surface 30, etc.
  • FIG. 17 can also be represented with minor adaptations in other spatial arrangements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Coating Apparatus (AREA)
  • Paper (AREA)

Abstract

Procédé pour déposer et/ou appliquer par pression des liquides aqueux ou des substances coulantes sur une surface (21) ou un matériau (1) en bande, en particulier un matériau textile, amené sur cette surface, ou pour les éliminer de ce matériau au moyen d'un cylindre (18) pressé contre cette surface (21) ou cette bande (1), procédé caractérisé en ce que ce cylindre de travail (18) possède, sur toute sa largeur de travail, une surface en mesure de recevoir, d'emmagasiner, de transporter et, sous l'action d'une pression, de rejeter un liquide et en ce que le cylindre de travail (18) ou la surface (21) sont recouverts, sur toute la largeur de travail, par une enveloppe (8) absorbante et/ou comprimée, le transfert étant provoqué par le fait que cette enveloppe (8), lorsque le dispositif est en service, est comprimée pendant la rotation du cylindre de travail (18) par une pression du cylindre de travail (18) sur la surface (21) exercée dans une zone de l'enveloppe (8), puis détendue à nouveau, et par le fait que la pression, dont il est toujours possible de faire variier l'intensité, ou la compression de l'enveloppe (8) détermine la quantité de liquide transférée.
EP91914555A 1990-08-16 1991-08-14 Procede et dispositif pour deposer, appliquer par pression ou eliminer des liquides ou des substances Withdrawn EP0496860A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT1702/90 1990-08-16
AT170290 1990-08-16

Publications (1)

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EP0496860A1 true EP0496860A1 (fr) 1992-08-05

Family

ID=3519137

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Application Number Title Priority Date Filing Date
EP91914555A Withdrawn EP0496860A1 (fr) 1990-08-16 1991-08-14 Procede et dispositif pour deposer, appliquer par pression ou eliminer des liquides ou des substances

Country Status (5)

Country Link
US (1) US5303440A (fr)
EP (1) EP0496860A1 (fr)
JP (1) JPH05502071A (fr)
BR (1) BR9106633A (fr)
WO (1) WO1992003605A1 (fr)

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DE29809883U1 (de) * 1998-05-23 1999-09-30 Zimmer, Johannes, Klagenfurt Vorrichtung zum Bearbeiten einer Warenbahn
FI116091B (fi) * 2000-04-12 2005-09-15 Metso Paper Inc Menetelmä liukulaakeripaineen mittaamiseksi kiinteävaippaisessa taipumakompensoidussa telassa
ITMI20010647A1 (it) * 2001-03-27 2002-09-27 Sperotto Rimar Spa Dispositivo per umidificare un materiale tessile contonuo
DE20202708U1 (de) * 2002-02-21 2003-07-03 Tima Tec Maschinen- Und Anlagenbau Ges. M.B.H., Velden Rundschablonen-Drucksystem
BE1015327A3 (nl) * 2003-01-27 2005-01-11 Corrutech Nv Werkwijze en inrichting voor het vervaardigen van golfkarton of dergelijke.
DE102009019600A1 (de) 2009-04-30 2010-11-11 Delfortgroup Ag Anlage und Verfahren zum Bearbeiten einer Papierbahn, insbesondere einer Zigarettenpapierbahn
CN115161916B (zh) * 2022-07-27 2023-10-20 无锡夏利达漂染有限公司 一种低能耗与高染色效果的棉纱染色装置

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Also Published As

Publication number Publication date
BR9106633A (pt) 1993-08-03
JPH05502071A (ja) 1993-04-15
US5303440A (en) 1994-04-19
WO1992003605A1 (fr) 1992-03-05

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