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EP1012095B1 - Dispositif d'une enrouleuse de machine a papier - Google Patents

Dispositif d'une enrouleuse de machine a papier Download PDF

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Publication number
EP1012095B1
EP1012095B1 EP98917910A EP98917910A EP1012095B1 EP 1012095 B1 EP1012095 B1 EP 1012095B1 EP 98917910 A EP98917910 A EP 98917910A EP 98917910 A EP98917910 A EP 98917910A EP 1012095 B1 EP1012095 B1 EP 1012095B1
Authority
EP
European Patent Office
Prior art keywords
web
reel
glue
paper
nozzles
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
EP98917910A
Other languages
German (de)
English (en)
Other versions
EP1012095A1 (fr
Inventor
Tommy Göran ANDERSSON
Tomas Ake Eklund
Rolf Gunnar Lind
Tord Olof Sixten Svanqvist
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.)
Valmet AB
Original Assignee
Metso Paper Karlstad AB
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 Metso Paper Karlstad AB filed Critical Metso Paper Karlstad AB
Publication of EP1012095A1 publication Critical patent/EP1012095A1/fr
Application granted granted Critical
Publication of EP1012095B1 publication Critical patent/EP1012095B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/02—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for applying adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/2238—The web roll being driven by a winding mechanism of the nip or tangential drive type
    • B65H19/2253—The web roll being driven by a winding mechanism of the nip or tangential drive type and the roll being displaced during the winding operation
    • B65H19/2261—Pope-roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/28—Attaching the leading end of the web to the replacement web-roll core or spindle
    • B65H19/286—Attaching the leading end of the web to the replacement web-roll core or spindle by applying adhesive to the web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B65H26/025—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs responsive to web breakage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2406/00—Means using fluid
    • B65H2406/20—Means using fluid made only for liquid medium
    • B65H2406/21—Means using fluid made only for liquid medium for spraying liquid
    • B65H2406/211—Means using fluid made only for liquid medium for spraying liquid nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/23—Winding machines
    • B65H2408/236—Pope-winders with first winding on an arc of circle and secondary winding along rails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/84—Paper-making machines

Definitions

  • the present invention relates to a device for applying an adhesive agent onto a paper web in a reel-up in a paper machine when changing web rolls, in which reel-up the paper web is supported by a surface winding drum or a continuous belt and wound onto replacement web-roll cores or spindles in contact with the surface winding drum or the continuous belt in order to form the web rolls, said device including a supporting frame mounted on the stand of the reel-up, upstream of the surface winding drum or the continuous belt, and extending transversely to the machine direction, and a spray nozzle mounting rack supported by the supporting frame, extending transversely to the web across its entire width and comprising a plurality of nozzles.
  • reel is synonymous with web roll
  • reeling drum is synonymous with web-roll core or spindle.
  • EP-A-0 765 832 discloses a glue-spreading device used when changing reels in a reel-up in a paper machine.
  • a reel When a reel is full a roll is moved to push the full reel into a change position.
  • a new reel spool is lowered into the gap between two rolls by a change device.
  • the web tip is cut by water nozzles and blown onto the new reel spool by blower means.
  • An adhesive is sprayed onto the web tail feeding old reel at the same time as the web is cut off.
  • the adhesive is spread just in front of the cut line and the web tail is glued onto the full reel to fix the tail into place.
  • US-A-5 213 649 describes an apparatus for cross-cutting a web with a laser.
  • the apparatus includes adhesive nozzles which are movable with the laser.
  • the severed web has its trailing edge glued to a web roll being wound while the leading edge of the severed web can be glued to a new core.
  • Threading means that a web end is pulled along through a paper or cardboard machine by a leader consisting of a strip of the web which may initially be e.g. 400-500 mm wide but gradually becomes wider until it extends across the entire width of the web.
  • the leader is cut out in the continuous web, starting either at one edge or somewhere at an optional distance from either edge of the web, whereas its length is determined by the time it takes for the tip to extend across the entire width of the web. Due to the high web speed the leader may be very long, 180-200 m, and this incurs considerable costs for the paper mill since the cut part of the paper web must be discarded for each paper reel. Threading can be performed with cords, compressed air or manually in machines running at low speed.
  • Adhesive is often used, mixed with water to ensure that the leader adheres to a new reel core, or to the paper reel already started if a web rupture has occurred during reeling.
  • the adhesive is applied either manually, using a large brush or spray gun, or automatically with the aid of glue nozzles, generally placed at one side of the paper web close to the primary arms. Serious safety aspects naturally arise as regards this manual application. Unsuccessful reel switching and the need to clean up after glue has been spilled during application, have a significant influence on the total capacity of the machine, particularly since the spilled glue forms lumps with the paper dust falling down as a result of machine vibrations and may thus constitute one of the reasons for the web ruptures nowadays occurring several times each shift.
  • the safest and most efficient automatic threading means consists of a blower box which, with the aid of compressed air carries the leader to the nip between the new reeling drum and the surface winding drum.
  • Sanitary tissue products usually manufactured of tissue paper, are extremely market-sensitive and the quality of the product is therefore often more important than its quantity. It is thus important that during reeling the paper reel acquires several important properties, i.e. homogeneity and lack of wrinkles, tears or folds. Furthermore, high efficiency in the following conversion machines can only be achieved if the reels of paper from the paper machine have a homogenous high quality.
  • the thickness and elasticity decrease from the outside of the reel towards its centre. This is because the compressive stress built up in the paper reel during reeling compresses the inner parts of the reel, thereby causing a loss of thickness in the inner web layers. This effect increases if the reel is stored for too long before being rewound or converted.
  • a key factor for efficient reel switching is thus the type of reel switching used.
  • other important factors are control of the nip pressure and quality of the sleeve applied on the reeling drum. If a substandard sleeve, e.g. one with uneven thickness or strength, is pressed against the surface winding drum, the nip will be incompletely closed, sealing only at the places where the sleeve i thickest. The nip pressure must then be increased in order to completely close the nip, but the variations in compressive stress over the transverse profile still remain because of said differences in thickness in the sleeve. These pressure variations are of course greatly aggravated in the helical reeling resulting from threading.
  • the glue should preferably be applied as an aerosol since poorer result is obtained with a liquid jet.
  • the nozzles are nowadays generally arranged on the primary arms, directed in towards the nip, since the.first turns on a new reeling drum generally occur here.
  • a correct nip pressure is most essential during the initial reeling while the reel is still held in the primary arms, since its own weight is then still acting in the direction of the nip.
  • the growing weight of the reel is taken up by the stand rails. Too high a nip pressure will risk crushing the first layers of paper wound on and the nip-pressure control in the primary arms is also extra critical since., because of the leader, the nip width is relatively narrow during the first turns.
  • Glue is sprayed for a brief moment on two occasions, first to facilitate wrapping of the leader around a new empty reeling drum and then, if desired, to attach the end of the web to the finished reel of paper when reel switching has been completed.
  • a main object of the present invention is to provide an improved glue-spreading device for a reel-up in a paper machine, said glue-spreading device enabling full-width reel switching without risk of glue dripping down onto the paper web.
  • Another object of the invention is to provide a glue-spreading device in a reel-up that, despite increasing demands on tissue quality, is able to maintain the higher production speed achieved in other parts of the paper machine, in its dry end as well, by substantially reducing the problems associated with reel switching.
  • a third object of the invention is to provide a glue-spreading device which produces a finished paper reel that is homogenous, free from breaks and folds, and has uniform radial growth axially along the entire reeling drum, entailing a uniform cross-sectional profile as regards nip pressure, for instance, thereby enabling high efficiency in the subsequent conversion machines.
  • Yet another object of the invention is to provide a glue-spreading device which does not permit the appearance of too long a wrapping fold as a result of only a small portion of the web width being glued to a new reeling drum while most flies away in the machine direction instead of wrapping around said reeling drum.
  • An additional object of the invention is to provide a glue-spreading device to replace the currently conventional reel switching by means of threading, with reliable automatic application of glue across the entire width of the web so that a full-width reel switch can be performed at the considerably higher speeds now deemed desirable, while avoiding the serious safety risks that arise with manual application of the glue.
  • the device according to the invention is characterized in that in order to attach a leading end of the paper web to an empty replacement web-roll core or spindle or to a commenced web roll in the event of a web break in the reel-up, and in order to wrap the entire width of the web therearound, respectively, the nozzles are distributed uniformly across the web to spread spray jets of liquid containing said adhesive agent onto the web to form a coherent adhesive area that is perpendicular to the machine direction and covers the whole width of the paper web, whereby, when said adhesive area is brought into contact with said empty replacement web-roll core or spindle or said already commenced web roll, a full-width turn-up will take place.
  • a glue-spreading device avoids the necessity of applying the string of glue manually when performing full-width reel switching and the glue can be applied only where it is supposed to be, i.e. directly on the paper web without glue nozzles having to be arranged at unsuitable points, e.g. on the primary forks or the like. Thanks to this, and the drip-free design of the nozzles which contain a cleaning needle that effectively closes the tip of the nozzle, greatly increased web speed can be maintained.
  • Another advantage of the glue-spreading device is its positive aerodynamic effect on the web passage as regards vibration and "flutter" in the paper web up to the roll nip obtained by the location of the glue-spreading device.
  • Figures 1 and 2 show schematically a preferred embodiment of a glue-spreading device 1 according to the invention, arranged upstream of a surface winding drum 2 in a reel-up 3 of a paper machine.
  • adhesive spray liquid preferably glue
  • the glue-spreading device 1 comprises essentially two parts arranged transversely to the machine direction, namely a box-like shield 7 constituting the supporting frame of the glue-spreading device 1, and a spray nozzle mounting rack 8 which is adjustable in both vertical and horizontal direction to a width and a distance adjusted to the continuous paper web.
  • Said box shield 7 is mounted on the stand 9 of the reel-up 3, on which stand the lowering arms 10 including their actuators 11 are also mounted, see Figure 1.
  • the stand 9 comprises two vertical pillars 12, 13, between the upper ends of which a horizontal beam 14 extends across the continuous paper web.
  • Said box shield 7 is preferably rigidly mounted by means of a plurality of attachment devices 15 in the stand 9 of the reel-up 3 in the upper end of the box shield 7 and at each of its vertical short sides.
  • said attachment devices 15 consist of an attachment plate 16 welded to the horizontal beam 14 with a support in the form of a bracket 17 protruding from the plate and preferably welded to a reinforcing plate 18 with a specific extension downwards from the upper edge of the box shield 7, and also at least one attachment beam 19 extending preferable horizontally between the pillars 12, 13 and the adjacent vertical short side of said box shield 7 to brace this in lateral direction.
  • the box shield may be movably arranged on the reel-up stand by means of some type of actuator able to move or swing the glue-spreading device to any desired position in relation to the surface winding drum 2.
  • the box shield 7 comprises at least one, preferably several, thin, identical box sections 20 arranged side by side, see Figure 2.
  • each separate box section 20 consists of a rectangular frame 21 constructed of at least two vertical and two horizontal rods 22 of U-section, I-sections or rectangular sections, suitably of steel, welded together at their ends to said frame 21. Diagonal bracing can also be arranged if necessary.
  • the frame 21 has thin covering plates 25 at its upstream and downstream sides 23, 24, said covering places 25 being riveted, welded or secured in some other suitable way to the frame 21. This attachment may be over the whole or part of each side 23, 24 in order to form said thin box section 20.
  • Each box section 20 is connected to the next box section by means of the intermediate, common, vertical joint 26 with the aid of suitable means, e.g. screw joints.
  • suitable means e.g. screw joints.
  • Between the two horizontal parts of the frame 21 extend a plurality of vertical bars 27 for adjustment of the spray nozzle mounting rack 8 in vertical direction. This adjustment is suitably achieved by some form of displacement device or attachment device 28, e.g. a screw joint, securing the spray nozzle mounting rack 8 in desired position on the vertical bars 27.
  • the spray nozzle mounting rack 8, see Figures 3 and 4 comprises a rail frame 29 mounted with the aid of the attachment devices 28 to said vertical bars 27, and one or more assembly rails 30 arranged to be telescopically movable in the rail frame 29.
  • each assembly rail 30 consists of a U-section, see Figure 4, which can be moved horizontally by means of upper and lower bearing means 31 so that said assembly rails 30 with the nozzles 5 thereon can be first roughly adjusted in relation to the position of the paper web and can also be pulled out completely on both the drive side and the operator side of the reel-up 3 for cleaning and service of the internal parts of the glue-spreading device 1.
  • each nozzle 5 is also displaceable in a fine-adjustment strip 32 arranged below the assembly rail 30.
  • This fine-adjustment strip consists suitably of an aluminium section, for instance, with a horizontal groove in which the mounting device of the nozzle 5 can slide, said mounting device being attached to a block 34 of polytetrafluoroethylene, for instance.
  • Said rail frame 29 is made of a number of vertically arranged U-brackets 35 comprising an upper and a lower shank, mounted on the vertical bars arranged at regular intervals along the box shield 7, in the manner described above.
  • a spacer 36 extends inwardly from each shank towards the centre of the U-bracket 35, which is advantageously threaded at both ends for its attachment.
  • Two parallel, horizontal rail fillets are mounted in the free end of these spacers 36 to extend the full length of the box shield 7.
  • each rail fillet constitutes a support for the assembly rail 30 horizontally displaceable in the rail frame 29.
  • the bearing means 31 comprise a plurality of travelling devices 38 which are permanently arranged on the upper and lower edges of the assembly rail 30 and run in a groove open to the U-brackets 35 in inside each rail fillet 37, thereby enabling the assembly rail to be displaced telescopically.
  • the travelling devices 38 suitably comprise some form of roller or slide means, e.g. a roller, track wheel or block of polytetrafluoroethylene.
  • a pipe system is also arranged on the assembly rail 30, said system comprising four separate, parallel pipes. These consist of a pipe 39 for compressed-air control of a cleaning needle 40 arranged in each nozzle 5, as described in more detail below, a compressed-air pipe 41 for atomizing the glue, a glue-inlet pipe 42 and a glue outlet in the form of a return pipe 43 for the required circulation of the glue. Retainers 44 for the pipes 39, 41, 42, 43 are also arranged on the assembly rail 30. In the embodiment shown in Figure 4 these retainers consist of two pipe clamps placed along the assembly rail 30, a suitable distance one above the other, each retaining two pipes 39, 41 and 42, 43, respectively.
  • the spray nozzle mounting rack 8 is equipped with six nozzles 5 for spreading glue for full-width wrapping, these nozzles 5 being evenly distributed across the whole width of the paper web.
  • An additional nozzle 45 is also provided, mounted on a blower box 46 fitted on the drive side of the reel-up 3 to spread glue on the leader when a web rupture has occurred and said leader must once more be threaded and guided with the aid of said blower box 46.
  • All the nozzles 5, and also the nozzle 45 in the blower box 46 are adjustable to a desired and optimal position in relation to the surface winding drum 2 and the paper web running over this, by means of the assembly means 33 arranged on the spray nozzle mounting rack 8 and the blower box 46 so that the point of encounter and thus the pattern of contact on the paper web can be varied.
  • the assembly means 33 are therefore both pivotable so that the angle of incidence of the jet of glue towards the centre of the surface winding drum 2 can be finely adjusted, and also vertically adjustable a short distance.
  • the nozzles 5 in the embodiment described consist of automatic, air-operated nozzles 5 which mix air and liquid, preferably in the form of a glue suspension, which is applied on the paper web under high pressure in the form of a finely distributed jet of glue 4.
  • Each nozzle 5 is supplied with glue through the glue inlet pipe 42 arranged on the assembly rail 30, with the aid of a compressed-air operated piston pump 50 described below, the nozzles 5 also comprising special supply members, suitably flexible tubes (not shown), for the compressed air needed in a pneumatic cylinder 60 for operation of the main functions of the cleaning needle 40, and also for atomization of the glue suspension.
  • a glue circulation system 48 is connected to the glue-spreading device 1 to enable circulation of the glue so that it is prevented from drying, as described with reference to Figure 5.
  • the glue circulation system 48 and a valve cubicle 47 connected thereto suitably include one or more airpressure regulators 49, pumps 50, glue tanks 51 containing a synthetic polymer glue in water, for instance, safety valves 52, glue-pressure regulators 53, non-return valves 54, pressure accumulators, pressure transducers and finally, the elements on the spray nozzle mounting rack 8 described earlier.
  • the glue circulation system 48 may be controlled manually and/or automatically from a control panel, not shown, comprising three main functions, namely: application of glue on a leader which, as described above, is only performed in manual mode and when a web rupture has occurred, application of glue manually or automatically across the full width of the web during reel switching and cleaning of respective nozzles 5, this being effected by blowing only compressed air for a moment through respective outlet nozzles 55.
  • the glue is kept constantly circulating in a closed circuit consisting of pipes between the glue-spreading device 1 and the glue tank 51.
  • the spray nozzle mounting rack 8 and the single nozzle 45 for the threading are controlled entirely separately from each other by means of a pneumatic control system. All valves comprising the non-return valves 54 and the separate electromagnetic valves arranged at each nozzle 5 are connected to a control unit together with respective pumps 50 and other parts essential to the glue-spreading device 1.
  • Figure 1 also shows a web support 56 extending transversely across the continuous web, said web support 56 comprising at least one actuator 57 for its operation from a first, passive position folded up during the transition when switching reels, to a second, active position, folded down after completion of the reel switch.
  • Said web support 56 serves as an extra protection against dripping glue and also to control the continuous paper web during the air turbulence that always arises close to the nip between the reeling drum 6 and the surface winding drum 2.
  • Figure 1 also shows a dust cover 58 arranged on the upstream side 23 of the box shield 7, said cover suitably being rigidly mounted just above the spray nozzle mounting rack 8 at its upper horizontal edge.
  • the dust cover 58 consists, for instance, of a bent plate extending from said side at a specific angle so that the spray nozzle mounting rack 8 is shielded from dust coming from the parts of the reel-up 3 situated upstream. Undesired air currents are thus reduced to a minimum and the effect of dust suction boxes, not shown, situated upstream is improved.
  • the spray liquid to the glue-spreading device 1 may consist of a surface-active agent, water or a suspension or dispersion consisting of adhesive agent, a suitable solvent and a carrier, preferably water in order to avoid patches being formed.
  • the glue-spreading device 1 may also be equipped with two separate pipe systems for increased reliability, a programmable control unit controlling each nozzle 5 individually, a panel display and equalization container for said glue circulation system 48.
  • All the above-mentioned components are mounted in suitable manner which may entail gluing, welding, screwing or riveting, for instance.
  • the nozzles 5 also include the following additional important components: said cleaning needle 40 with associated actuator in the form of a pneumatic cylinder 60 for operation of the cleaning needle, three coupling devices 61, 62, 63 for the flexible connection hoses described below, the outlet nozzle 55 which in the embodiment shown in fact consist of an outer and an inner nozzle 64, 65 arranged one after the other, the outer nozzle 64 being intended for compressed air and the inner nozzle 65 for the glue dispersion, an outer channel 66 for said glue dispersion, and the assembly means 33 with associated adjustment means as described above.
  • Three flexible connection hoses (not shown) are drawn from the pipes 39, 41, 42 on the assembly rail 30, from the two compressed-air pipes 39, 41 and from the glue inlet pipe 42, each to its own coupling device 61, 62, 63 on respective nozzles 5.
  • Nozzles are preferably used which give a finely distributed flat spray in the shape of a fish tail, i.e. with large width but slight thickness.
  • the function of the glue-spreading device 1 is described below with reference to a sequence diagram 59 shown in Figure 6.
  • auto mode gluing is performed as an automatic full-width reel switch, together with balloon blowing.
  • the sequence 59 commences with the finished paper reel being temporarily retarded so that a slack is created, the slack extending across the full width of the paper web.
  • the web fold thus formed is forced by means of compressed air into the nip between the new empty reeling drum 6 applied by the lowering arms 10 and the surface winding drum 2.
  • Application of the glue can be started 0-10 seconds after commencement of the sequence, whereupon the cleaning needle 40 is moved by its actuator 60 to its rearmost position in the nozzle 5, thereby providing free passage to the nozzle 5 itself, for the glue suspension and the atomizing compressed air, so that they are sprayed out synchronously from the outlet 55 of the nozzle 5.
  • An aerosol mist 4 is thus applied over the whole paper web in a predetermined pattern.
  • the atomization of the liquid 4 is determined by varying the magnitude of the compressed air flow while keeping the liquid flow constant.
  • the glue application sequence 59 is always such that the compressed-air valve to the atomization air is opened first and closed last, preferably about 6 seconds after the glue supply, lasting approximately 0-10 seconds, has been cut off.
  • the nozzles 5 are both operated and cleaned with the aid of compressed air so that they are self-servicing.
  • the cleaning need 40 cleans said outlet channel 66 mechanically so that the glue dispersion can be freely fed out through the outlet nozzle 55 without risk of clogging, as well as closing the outlet channel 66 of the nozzle 5 completely after each gluing procedure.
  • the coupling device 61 for the atomizing compressed air is provided with a separate short connection channel 68 to said outer outlet nozzle 64 to enable the outlet channel 66 to be blown clean in the manner described above. Thanks to this construction the nozzle 5 is completely drip-free.
  • the outlet nozzles 55 of the nozzles 5 may be changed depending on the desired pattern of contact and are fitted entirely separately from the pneumatic cylinder 60 and cleaning needle 40, outermost on the nozzle 5 to minimize maintenance.
  • the application process for the glue-spreading device 1 may suitably be synchronized with a slitter, not shown, for cutting the web.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Basic Packing Technique (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Claims (9)

  1. Dispositif pour appliquer un agent adhésif sur une bande de papier dans une bobineuse (3) d'une machine à papier lors du changement des bobines de bande, la bande de papier dans ladite bobineuse étant supportée par un tambour d'enroulement de surface (2) ou une courroie continue et enroulée sur des noyaux ou des pivots (6) de bobines de bande de remplacement en contact avec le tambour d'enroulement de surface (2) ou la courroie continue pour former les bobines de bande, ledit dispositif comportant un bâti de support (7) monté sur un support (9) de la bobineuse (3), en amont du tambour d'enroulement de surface (2) ou de la courroie continue, et s'étendant transversalement à la direction de la machine, et une rampe (8) de montage de buses de pulvérisation supportée par le bâti de support (7), s'étendant transversalement à la bande sur toute sa largeur et comprenant une pluralité de buses (5), caractérisé en ce que dans le but d'attacher une extrémité de tête de la bande de papier à un noyau de bobine de bande ou à un pivot (6) de remplacement vide ou à une bobine de bande commencée dans le cas d'une rupture de bande dans la bobineuse, et dans le but d'envelopper l'entière largeur de la bande autour de lui, respectivement, les buses (5) sont distribuées uniformément en travers de la bande pour distribuer des jets de liquide pulvérisé contenant ledit agent adhésif sur la bande pour former une zone adhésive cohérente qui est perpendiculaire à la direction de la machine et couvre l'entière largeur de la bande de papier, et où, lorsque ladite zone adhésive est amenée en contact avec ledit noyau de bobine de bande ou pivot (6) vide de remplacement ou ladite bobine de papier déjà commencée, un soulèvement sur toute la largeur se produit.
  2. Dispositif selon la revendication 1, caractérisé en ce que le bâti de support (7) est monté rigidement sur le support de la bobineuse (3).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que la rampe (8) de montage de buses de pulvérisation comprend un cadre formant rail horizontal (29) et au moins un rail d'assemblage (30), qui porte lesdites buses (5) et est reçu de manière déplaçable dans le cadre formant rail de manière à être ajustable par rapport à la bande et aussi à permettre l'extraction dudit rail d'assemblage (30) du côté d'entraínement et/ou du côté conducteur de la bobineuse (3) pour l'entretien.
  4. Dispositif selon la revendication 3, caractérisé en ce que chaque buse (5) est reçue dans le rail d'assemblage (30) de manière à être déplaçable horizontalement pour un réglage fin de la position de la buse (5) par rapport aux autres buses (5) et aux bords de la bande.
  5. Dispositif selon la revendication 4, caractérisé en ce que chaque buse (5) est montée dans le rail d'assemblage (30) pour être également pivotable et déplaçable verticalement pour le réglage de l'angle ou de la distance du jet de pulvérisation par rapport au tambour d'enroulement de surface (2).
  6. Dispositif selon l'une quelconque des revendications 3-5, caractérisé en ce que les buses (5) sont du type à entraínement par air pour mélanger de l'air et du liquide contenant un agent adhésif pour former une pulvérisation à la sortie.
  7. Dispositif selon la revendication 6, caractérisé en ce que le rail d'assemblage (30) supporte un système de tuyaux reliés aux buses (5) et comprenant un tuyau souple d'air comprimé (39) pour faire fonctionner une aiguille de nettoyage (40) agencée dans chaque buse (5), un tuyau souple d'air comprimé (41 ) pour atomiser l'agent adhésif, un tuyau d'entrée (42) pour l'agent adhésif et un tuyau de retour (43) pour la circulation de l'agent adhésif.
  8. Dispositif selon la revendication 7, caractérisé en ce qu'il comprend un système de circulation (48) pour l'agent adhésif afin de maintenir son activité.
  9. Dispositif selon l'une quelconque des revendications 1-8, caractérisé en ce que le bâti de support (7) est en forme de boíte.
EP98917910A 1997-04-16 1998-04-16 Dispositif d'une enrouleuse de machine a papier Expired - Lifetime EP1012095B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9701401A SE509117C2 (sv) 1997-04-16 1997-04-16 Anordning vid en rullstol hos en pappersmaskin
SE9701401 1997-04-16
PCT/SE1998/000698 WO1998046510A1 (fr) 1997-04-16 1998-04-16 Dispositif d'une enrouleuse de machine a papier

Publications (2)

Publication Number Publication Date
EP1012095A1 EP1012095A1 (fr) 2000-06-28
EP1012095B1 true EP1012095B1 (fr) 2003-11-19

Family

ID=20406579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98917910A Expired - Lifetime EP1012095B1 (fr) 1997-04-16 1998-04-16 Dispositif d'une enrouleuse de machine a papier

Country Status (5)

Country Link
EP (1) EP1012095B1 (fr)
AT (1) ATE254574T1 (fr)
DE (2) DE1012095T1 (fr)
SE (1) SE509117C2 (fr)
WO (1) WO1998046510A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6705560B1 (en) 2000-11-28 2004-03-16 Metso Paper Karlstad Aktiebolg (Ab) Method for winding a tissue web in a reel-up in a paper machine
US6805317B1 (en) 2000-11-28 2004-10-19 Valmet-Karlstad Ab Adhesive dispenser in a reel-up in a paper machine
WO2004110910A1 (fr) * 2003-06-13 2004-12-23 Metso Paper Karlstad Ab Dispositif comportant une pluralite de buses mobiles espacees destinees a distribuer un adhesif et a separer une bande de papier dans une machine a papier
ATE387397T1 (de) * 2003-08-26 2008-03-15 Metso Paper Inc Düse, vorrichtung und verfahren zum aufbringen von klebemittel auf einer papierbahn und verfahren zum verbessern der betriebsfunktionen solch einer düse
CN117163719B (zh) * 2023-10-12 2025-08-08 江苏金美达新材料有限公司 一种非织造布自动下卷机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4003577C1 (fr) * 1990-01-31 1991-04-25 Grafotec Kotterer Gmbh, 8901 Diedorf, De
US5213649A (en) * 1990-10-15 1993-05-25 Beloit Technologies, Inc. Apparatus for receiving and cutting a continuous web
IT1263448B (it) * 1993-06-28 1996-08-05 Gd Spa Dispositivo per il supporto di distributori di materiale collante.
FI102826B (fi) * 1995-09-29 1999-02-26 Valmet Corp Menetelmä ja laite kiinnirullauksessa

Also Published As

Publication number Publication date
DE69819914D1 (de) 2003-12-24
ATE254574T1 (de) 2003-12-15
SE9701401L (sv) 1998-10-17
SE9701401D0 (sv) 1997-04-16
WO1998046510A1 (fr) 1998-10-22
EP1012095A1 (fr) 2000-06-28
SE509117C2 (sv) 1998-12-07
DE1012095T1 (de) 2001-04-05
DE69819914T2 (de) 2004-09-02

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