EP0870598A1 - Vorrichtung zum Herstellen eines laminierten Streifens - Google Patents

Vorrichtung zum Herstellen eines laminierten Streifens Download PDF

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Publication number
EP0870598A1
EP0870598A1 EP98106093A EP98106093A EP0870598A1 EP 0870598 A1 EP0870598 A1 EP 0870598A1 EP 98106093 A EP98106093 A EP 98106093A EP 98106093 A EP98106093 A EP 98106093A EP 0870598 A1 EP0870598 A1 EP 0870598A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
gluing
force
grooved
glue
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98106093A
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English (en)
French (fr)
Other versions
EP0870598B1 (de
Inventor
Dieter Pallas
Jens Schulz
Jörg Vonderheiden
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.)
BHS Corrugated Maschinen und Anlagenbau GmbH
Original Assignee
Peters Maschinenfabrik GmbH
BHS Corrugated Maschinen und Anlagenbau GmbH
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.)
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Publication date
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Publication of EP0870598A1 publication Critical patent/EP0870598A1/de
Application granted granted Critical
Publication of EP0870598B1 publication Critical patent/EP0870598B1/de
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2818—Glue application specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/20—Corrugating; Corrugating combined with laminating to other layers
    • B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
    • B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
    • B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
    • B31F1/2831—Control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1007—Running or continuous length work
    • Y10T156/1016—Transverse corrugating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1722—Means applying fluent adhesive or adhesive activator material between layers

Definitions

  • the present invention relates to a device for manufacture of a laminated strip, which has at least a corrugated strip and at least one flat strip stuck to the corrugations of the corrugated strip, the device comprising at least one grooved cylinder used for shaping and / or preserving the shape of the corrugated strip which, in service, is covered over part of its circumference by the wavy band, and one unit glue intended to apply a liquid adhesive used to tie the corrugated strip to the flat strip, the unit glue having a glue cylinder coated in permanently on its envelope surface with a film of adhesive and with an axis substantially parallel to the grooved cylinder, glue cylinder which is driven with speed device approximately identical to speed device of the grooved cylinder and which, by means of approximation, can be approximated with its surface envelope against the circumference part of the cylinder fluted covered by the corrugated band forming a glue slot in a close-up state causing the transfer of adhesive on the undulations of the strip wavy.
  • Such a device is used for example for the manufacture of corrugated cardboard, in particular cardboard wavy single sided.
  • a strip of cardboard or paper is fed between a pair of grooved rollers and pressed into a wavy strip.
  • the corrugated strip is pressed by suitable means, for example by producing an overpressure in space surrounding the grooved cylinders and the cylinder gluing, against the grooved cylinder following the slot embossing in the running direction of the web wavy, and passes in front of the gluing cylinder, where the adhesive is transferred from the glueing cylinder to the undulations of the corrugated strip.
  • the glue gap between the glue cylinder and the grooved cylinder located opposite is dimensioned so that the ripples of the corrugated tape sink into the applied adhesive film on the gluing cylinder, without being pressurized or come into contact with the envelope surface of the glue cylinder. So a distance is always between the corrugations of the corrugated strip and the envelope surface of the gluing cylinder. Thickness of the adhesive film is generally of the order of 0.15 to 0.40 mm.
  • the glue gap between the gluing cylinder and the grooved cylinder must therefore be adjusted with corresponding precision. Of a apart, in fact, the glue gap should not be too large, to ensure that the ripples of the tape corrugated actually sink into the adhesive film.
  • a possibility of exact adjustment of the width of the sizing gap is that an operator holds a thickness test strip in hand predetermined known (e.g. 0.07 mm) between the grooved cylinder carrying the corrugated band and the cylinder gluing. We then gradually bring the gluing cylinder of the grooved cylinder. It is done with the grooved cylinder in rotation and the cylinder gluing in rotation. We reduce the glue gap until a pull is noted on the test strip. The effective gap between the glue roll and the undulations of the corrugated strip located on the cylinder grooved is thus adjusted to the thickness of the strip test (so for example 0.07 mm).
  • a distance sensor without contact is attached to a frame of the gluing unit in the immediate vicinity of the gluing cylinder, sensor which measures the distance to a target point on a support of the grooved cylinder. The value measured by the distance thus indicates the width of the slot present at the level sensor of the distance between the cylinder frame of glue and the support of the grooved cylinder.
  • Another method consists in reporting as above a sensor distance on the frame of the gluing unit, but choose as target point for distance measurement a smooth flange placed outside the spline area of the grooved cylinder.
  • the position of a stop adjustable, against which the gluing unit is pushed in order to adjust in a definite way the width of the slit size is determined by an appropriate sensor, by example of a rotation angle indicator or a position.
  • the position of the stop thus represents a measure of the width of the slit gluing.
  • the three measurement methods cited have in common not include direct measurement of the measurement slot, whose width is nevertheless the interesting magnitude. In all cases, we rather carry out a measurement of distance or position outside the slot measured. It turned out that the distance or position thus obtained only allow conclusions unsatisfactory over the actual width of the slot gluing. On the one hand, the conditions at the level of measurement points may differ from those prevailing at glue gap level. On the other hand, the sensors distance and position available work with comparatively low accuracy under conditions of work prevailing in a machine manufacturing corrugated cardboard, so it is necessary to carry out regular intervals to monitor the device measurement and, if necessary, corrective adjustment.
  • the problem outlined above for the measurement of the gluing gap is further complicated by temperature conditions prevailing in the vicinity of the slit gluing.
  • a cardboard making machine corrugated, grooved cylinders and pressing cylinder which is used to press the corrugated strip glued onto a flat strip, are heated with steam.
  • the heat is absorbed by the paper strips, i.e. the strip wavy and flat band.
  • the heat flow depends on various parameters, including the thickness of the paper, the amount of glue, the speed of the tapes, etc.
  • the cylinders are therefore subjected to thermal influences that are not predictable from a exact way and can hardly be held constant, even assuming that this is possible.
  • These influences of temperature lead to thermal variations in the size of cylinders and thus also the width of the slot gluing.
  • the machine chassis is also exposed temperature variations, which can occur by variations in the width of the sizing slot.
  • the measurement system must also be able to detect variations due to the temperature of the width of the sizing slot, so that you can readjust later the width of the slot so appropriate.
  • precise determination of variations of thermal origin of the width of the gluing gap is very difficult. This is especially true when considers that the temperature conditions at the places where the sensors are located may differ considerably prevailing temperature conditions actually in the vicinity of the glue slot.
  • the objective of the present invention is therefore to facilitate the adjustment of the glue gap in a device of the type mentioned in the introduction.
  • the approximation means are shaped to press the gluing cylinder against corrugated tape and the corrugated tape against the cylinder grooved.
  • the sizing cylinder is pressed with its surface envelope against the corrugated strip placed on the cylinder grooved, i.e. against the undulations of the strip wavy.
  • the cylinder of glue presses on the corrugated strip and causes a some backdraft of the adhesive towards the sides lateral ripples.
  • it turned out to surprisingly that such an effect does not appear.
  • gluing diagrams are obtained very regular wavy strip, that is to say a very good quality of adhesive application on corrugations of the corrugated strip, whether over the length of a same undulation of the corrugated strip or on several successive undulations of the wavy strip in the direction scrolling of it.
  • the approximation means include adjusting means for adjusting a force of predetermined support between the gluing cylinder and the grooved cylinder, so that for example for various kinds of glue or various qualities of paper, force conditions each time well defined can be adjusted in the gluing slot.
  • the approximation means include means of regulation in order to maintain a force in a regulated manner of predetermined support between the gluing cylinder and the grooved cylinder.
  • An imposed set force of outside and stored in a control unit is then compared with a measured actual bearing force and, in case of deviation, a corresponding adjustment of the force support until the gap is eliminated. It is possible to store as a table in the unit a plurality of values for the support force which are selected according to parameters like paper quality, type of glue or the viscosity of the glue.
  • the supporting force acting on the corrugated strip will be chosen so that it does not appear attenuation of the corrugated strip material.
  • a maximum linear pressure between 0.1 N / mm and 10.0 N / mm, preferably between 0.3 N / mm and 5.0 N / mm, more preferably between 0.5 N / mm and 3.0 N / mm, is transferred.
  • material properties are not affected up to a linear pressure of 15.0 N / mm, so than with preferred values for line pressure acting on the corrugated strip, there is no reason to fear any deterioration in the quality of the material of the corrugated strip.
  • the supporting force acting in the gluing gap between the gluing cylinder and the grooved cylinder is a parameter which influences the final qualities of the product glue.
  • Another important parameter for the properties of the product is the oscillation behavior of the width of the gluing slot. The reason is as follows: pressing the sizing cylinder against the strip corrugated and corrugated strip against the grooved cylinder, mechanical coupling of the gluing cylinder to the cylinder fluted is established.
  • Oscillations can then be induced, on which the frequency or frequencies depend inter alia the pitch of the grooves of the grooved cylinder and the speeds sizing cylinder and cylinder peripherals grooved. Oscillations can cause variations the width of the glue gap and change the pressure conditions between the glue cylinder and the wavy strip. Therefore, the quality of the transfer adhesive on the corrugations of the corrugated strip and, finally, the properties of the glued end product can be subject to fluctuations. Therefore, the oscillatory behavior of the slit width also represents a parameter which can affect the properties of the product.
  • the active pressing force in the slot gluing between the grooved cylinder and the cylinder size and / or the oscillatory behavior of the width of the gluing gap between the grooved cylinder and the glue cylinder are set or adjustable in function of the properties of a finished or intermediate product previously glued, if desired in accordance with other parameters influencing product properties, e.g. film thickness adhesive, viscosity of the adhesive, properties adhesive properties of the material corrugated tape, in particular the absorption capacity of the wavy strip, the wetting conditions between the corrugated tape and adhesive, and peripheral speeds of the grooved cylinder and the gluing cylinder.
  • finished or intermediate products previously glued are therefore examined in terms of certain properties and it is determined whether the properties of the product correspond to a desired or required quality criterion. If deviations appear, the contact force and / or the oscillatory behavior of the gluing gap can be changed to improve quality.
  • Such will be certainly the case in the context of tests before placing in actual service of the manufacturing facility but this can also be done in service, for example by subjecting various finished or intermediate products to a control and correspondingly adjusting the case if applicable, active support force and / or behavior oscillating of the gluing slot with the machine road.
  • a gluing diagram at the level corrugations of the corrugated strip, preferably a series of gluing patterns in successive areas ripples.
  • a ripple pattern can be examined by optical observation, in particular after coloring prior.
  • a glue composed of dispersed and / or dissolved starch in water.
  • the starch in the transferred glue on the ripples the wavy band can be colored by chemical treatment, for example using iodine, to so show in which areas of the ripples too much glue on the corrugated tape or too weak has been applied.
  • Starch coloring thus makes it possible to obtain a gluing diagram, using which we can assess the quality and in particular the uniformity of the transfer of adhesive on the corrugations of the wavy strip.
  • the width oscillations of the glue gap manifest for example in the gluing diagram by the fact that certain undulations have relatively low adhesive supply (corresponding to an oscillatory maximum of the width of the glue gap) and other undulations have a relatively strong adhesive supply (corresponds to a minimum oscillatory width of the slit glue).
  • the regularity with which the relatively strong adhesive corrugations and relatively low adhesive supply ripples is a measurement of the period of the oscillations of the width of the glue slot.
  • the oscillatory behavior of the width of the slit glue can be set or adjustable by influencing the components participating directly or indirectly in the formation of the glue gap, depending on their mass and / or their support amortization and / or their internal damping and / or their elasticity and / or the rigidity of their reciprocal mechanical coupling.
  • the friction conditions prevailing on the support points components involved in the formation of the slit are decisive for the amortization of oscillations appearing in the width of the slit gluing. For example, a setting appropriate friction between the gluing unit and the guide means of this gluing unit allows obtain sufficient damping of these oscillations of the slit width.
  • the active contact force in the gluing gap can be as a parameter for the oscillatory behavior of the width of the gluing gap. It is so possible, if we observe oscillations of the width of the glue gap, first try to remove these oscillations by modifying the active support force, before influencing components participating in the formation of the glue gap at level of the parameters mentioned above. It was found that, in the solution according to the present invention, a appropriate mutual adjustment of available parameters to influence the oscillatory behavior of the width of the gluing slot, it is possible to reduce the tendency to oscillate the width of the slit gluing until obtained, on undulations of the corrugated strip, a sizing slot approximately regular and so a regular transfer adhesive on the corrugations.
  • Another measure to largely remove or totally the slit width oscillations glue may lie in the fact that a frequency of resonance or resonance frequencies of behavior oscillating the width of the glue gap be located outside the excitation frequencies related to the rotation speed of the cylinders and / or the pitch of the cylinder grooves.
  • the resonance behavior of the width of the gluing gap is strongly influenced by the mass of the components participating in the formation of the gluing gap, by their internal elasticity and by their reciprocal elasticity, so that a choice appropriate and a mutual adjustment of these parameters allows avoid resonance of the width of the slit gluing.
  • the oscillatory behavior of the width of the gluing gap is chosen from preferably so that in undulating areas successive, we get gluing diagrams approximately identical.
  • suitable measures for adjusting the oscillatory behavior of the slit width gluing are advantageously provided for the essentials at the level of the gluing unit and / or approximation means or / and guide means for the gluing unit.
  • the glue roll can be placed on a support of sizing cylinder carried by guide means of movable relative to the grooved cylinder. Ways reconciliation can then include at least one means of force production engaging on the support of glue cylinder to introduce a force into the glue cylinder support. Guiding means preferably form a straight guide for the glue cylinder support, in particular of such so that the glue roll holder can be away from the grooved cylinder, to allow access to the grooved cylinder for possible cleaning work and maintenance.
  • the cylinder support glue can be a trolley guided on wheels, which can be extracted and then reintroduced into a chassis machine.
  • the force made available by the means of production of force at least one in number can be used completely to produce a downforce between the glue cylinder and the grooved cylinder.
  • the force put available here is mainly transmitted on a single channel of force transmission, which passes through the glue cylinder and the grooved cylinder.
  • the force made available by the means of production of strength at least one can also be branched, especially in a first way of force transmission transmitting a support force between the gluing cylinder and the grooved cylinder, and minus another route of force transmission.
  • This other force transmission channel at least one may contain stop means, which include preferably at least one stop, which is placed in view mutual displacement with the long gluing cylinder of its approach path against the grooved cylinder, and which further comprise at least one counter-stop, which is placed fixed by relative to the axis of rotation of the grooved cylinder.
  • stop means which include preferably at least one stop, which is placed in view mutual displacement with the long gluing cylinder of its approach path against the grooved cylinder, and which further comprise at least one counter-stop, which is placed fixed by relative to the axis of rotation of the grooved cylinder.
  • a change in force active support between the gluing cylinder and the grooved cylinder can be obtained by modification corresponding to the force made available by the means force production at least one.
  • several force transmission channels are provided, on which the force made available by means of at least one force production is transmitted, in addition to the above possibility, a modification of the active contact force between the gluing cylinder and the grooved cylinder can be obtained by the fact that the ratio of transmissible forces on the different force transmission path is changeable.
  • the balance of forces on the different force transmission channels can be editable simply by modifying at least one of the components: stop and counter stop.
  • the force transmitted on the first path of force transmission is weak compared to force made available by the means of force production at number of at least one.
  • the other channel of transmission of force to the number of at least one can then be transmitted a relatively large force, with which the support of glue roll can be pressed so firmly against a fixed stop against the axis of rotation of the grooved cylinder as the tendency to appear oscillations in the width of the gluing slot is almost entirely deleted.
  • the force induced in the glue cylinder support by the means of force production at least one will be relatively weak, in accordance with the support force between the gluing cylinder and the grooved cylinder, so that the oscillatory coupling of the cylinder of glue on the grooved cylinder will be very low and the tendency for oscillation in the width of the gluing gap will also be largely deleted.
  • This last point applies in particular when the gluing unit has a large mass (some hundreds of kilograms or even a ton or more) and a some friction damping exists between the unit glue and guide means for the unit gluing.
  • Measuring means can form with the adjusting means and / or the means a regulation loop intended for maintain a predetermined value of the pressing force or a predetermined profile of the force support as a function of time or stroke reconciliation.
  • sensors torque gauges with strain gauges can be employees, which are robust and allow measurements precise. Any variation in force at the level of the slot gluing (for example by thermal influences or by a variation of the material of the corrugated strip) is immediately detected by the measurement means of the force and can be compensated by the regulation loop.
  • the measuring means can be configured to measure the force made available by the means of production of force to the number of at least one. They can also be configured to measure the force transmitted on the other path force transmission at least one, the active support force being obtained in the latter case by difference between the force made available by the means force production at least one and the force transmitted on the other force transmission channel at number of at least one.
  • the peripheral speed of the gluing cylinder is preference set or adjustable so as to be up about 5% lower than the peripheral speed of the grooved cylinder.
  • the cylinder delay gluing in relation to the corrugated strip placed on the grooved cylinder will be around 2%.
  • Figure 1 a machine for manufacture of single-sided corrugated cardboard.
  • a first strip of paper or cardboard 1 forming a corrugated tape is glued on one side with a second strip of paper or flat cardboard 3 serving as a strip of cover to form a laminated strip 5.
  • the strip of paper 1 first passes through a preparation area 7, in which it is prepared for the implementation subsequent shape and gluing.
  • the strip of paper 1 then arrives in a shaping area 9 with a pair of fluted cylinders 11 and 13 rotating in the same meaning.
  • the two fluted cylinders 11, 13 delimit between them a grooved slot in which the strip of paper is embossed and receives its wavy shape.
  • a post gluing 15 according to the shaping zone 9 in the direction of travel of the corrugated strip 1, the strip corrugated 1 is glued on one side only. An adhesive is for this applied to the corrugations of the corrugated strip 1.
  • the flat strip 3 first passes through an area of preheating 17 and arrives at a pressing zone 19, where it is pressed with the corrugated strip 1, on the face glued from it, to form the laminated strip 5.
  • a pressing zone 19 In the pressing zone 19 is placed a cylinder of guide or pressing 21, which delimits with the cylinder grooved 13 a pressing slot, in which the strip flat 3 and the corrugated strip 1 are introduced and pressed.
  • the laminated strip 5 thus produced is delivered through an output device 23 for the purpose of drying on a drying path 25.
  • the gluing station 15 includes a gluing unit 27 which, by means of a carriage 29, can be introduced in a machine frame 31 of the manufacturing machine and extracted from it.
  • the carriage 29 is shown with the gluing unit 27 in its extended position and dotted in its retracted position.
  • hooking means 33 which, in the retracted position of the carriage 29, are attached to counter-latching means 35 provided on the machine chassis 31.
  • the carriage 29 is thus anchored fixed to the machine frame 31 in the position back to school. It is movable on wheels 37 along a track bearing 39 fixed relative to the machine frame 31 and has for its part a rolling guide 41, on which the gluing unit 27 is guided in rolling by via wheels 43.
  • the gluing unit 27 can be moved along the rolling guide 41 by means approximation not shown in Figure 1, which are active between the carriage 29 and the gluing unit 27, are moved along the rolling guide 41 and are brought together of the grooved cylinder 13 in the retracted position of the carriage 29.
  • the gluing unit 27 comprises a cylinder glue 45, which is driven in the same direction as the grooved cylinder 13 with peripheral speed approximately identical to that of the grooved cylinder 13.
  • the gluing cylinder 45 dives with its surface envelope 47 in a glue bath not shown in detail.
  • a film of adhesive is continuously applied glue bath on the surface envelope 47 of the gluing cylinder 45.
  • the sizing unit 27 comprises a cylinder glue dispenser 49, which can be brought closer to the cylinder size 45 and defines therewith a slit of adjustable width dosage.
  • the adhesive film formed on the glue cylinder is precisely dosed in this metering slot between the gluing cylinder 45 and the glue dosing cylinder 49.
  • the glue dosing cylinder 49 is driven in the opposite direction to the cylinder size 45, with a peripheral speed which is worth about 40-60% of the peripheral speed of the cylinder size 45.
  • the size unit 27 further comprises a carriage 51 serving as support for the gluing cylinder 45 and the glue dosing cylinder 49, carriage on which are reported wheels 43.
  • the carriage 51 are housed among others the rotary drive mechanisms of the glue roller 45 and glue metering cylinder 49, as well as the glue bath, in which the roller plunges gluing 45 with the envelope surface 47.
  • the carriage 29 is retracted into the machine frame with the gluing unit and is locked to the machine frame 31 by means of the attachment means 33.
  • an overpressure in order to support the strip corrugated 1 coming from the grooved cylinder 11 against the part of the circumference of the grooved cylinder 13 which is turned towards the gluing cylinder 45. It is also possible to vacuum the corrugated strip 1 against the grooved cylinder 13 by means of a vacuum.
  • Unity size 27 is then brought closer to the grooved cylinder 13 by means of approximation means not shown in Figure 1, but discussed in more detail in connection with figures 2 and 3, until the surface envelope 47 of the gluing cylinder 45 reaches close pressure contact with the corrugated strip 1, plus exactly in pressure contact with the corrugations of the wavy strip 1.
  • the undulations of the wavy strip 1 are therefore not only immersed in the adhesive film applied to the gluing cylinder 45, but they are also under pressure.
  • Load line applied to the undulations of the corrugated strip is preferably between 0.5 and 3.0 N / mm.
  • the thickness of the adhesive film on the glue roll 45 is chosen according to various parameters.
  • the thickness of the adhesive film is preferably included between 0.1 mm and 0.6 mm, the speed of the machine exerting an influence on the choice of film thickness adhesive in the sense that for a higher machine speed high, we generally choose a smaller thickness of the adhesive film.
  • Dependence on film thickness of adhesive depending on the speed of the machine can be tabulated in advance and stored in a control unit. Based on these tables, the slot dosing between the glue cylinder 45 and the cylinder glue dispenser 49 is then adjusted to obtain the adhesive film thickness adapted to the speed of the machine.
  • Figure 2 shows schematically a first example of the machine of FIG. 1.
  • a piston and cylinder unit 53 with hydraulic control, which grabs on the one hand the carriage 29 fixedly fixed to the machine frame 31 of the machine, and grab other leaves the carriage 51 of the gluing unit 27.
  • the unit piston and cylinder 53 includes a cylinder 55 placed on the carriage 29, in which a piston 57 is movably mounted.
  • the piston 57 defines a working chamber in the cylinder 59 and is connected on its opposite side to the working chamber 59 to a piston rod 61 which leaves the cylinder 55 in direction from the outside and grabs the carriage 51 of the gluing unit 27 with force transmission.
  • a pipe hydraulic 63 To the working chamber 59 is connected a pipe hydraulic 63. From a hydraulic pressure source 65, the working chamber 59 of the piston unit and cylinder 53 is supplied through the pipe hydraulic 63 in hydraulic pressure. In driving hydraulic 63 is contained a valve 67 for regulating pressure. This pressure regulation valve 67 delivers constant pressure, so that possible pressure fluctuations on the source side of hydraulic pressure 65 cannot be transmitted to the working chamber 59 of the piston and cylinder unit 53.
  • the hydraulic pressure source 65 can be formed for example by a hydraulic pump. Pressure delivered by the pressure regulating valve 67 is adjustable. For this, a control line 71 connected to a control unit 69 is connected to the valve pressure regulation 67.
  • command 71 it is possible, through this conduct of command 71, to impose by the control unit 69 a certain pressure, which is set in the pressure chamber work 59 via the control valve pressure 67.
  • a spring 73 placed in the cylinder 55 of the side of piston 57 opposite to working chamber 59 constrains the piston 57 in the direction of reducing the working chamber volume 59.
  • the chamber 59 of the piston and cylinder unit 53 is set under pressure, so that the piston 57 with the rod piston 61 is pushed back and the carriage 51 of the unit size 27 is moved towards the cylinder grooved 13.
  • the gluing cylinder 45 is then placed in pressure contact with the corrugated strip 1 resting on the grooved cylinder 13.
  • the working chamber 59 is exposed to pressure such as active resting force desired between the gluing cylinder 45 and the cylinder fluted 13 is established.
  • a torque sensor is provided, which is placed on the force transmission path of the force produced by the piston and cylinder unit 53.
  • the measurement signal delivered by the load cell 75 is transmitted by a measurement signal line 77 to control unit 69, where it is operated and where an adjustment signal is possibly produced, which is sent through the line of control 71 at the pressure control valve 67 so to modify the pressure in the working chamber 59 and, therefore, the bearing force between the gluing cylinder 45 and the grooved cylinder 13.
  • the control unit 69 can contain a microprocessor which, depending on the strength measured by the load cell 75, performs a regulation program to adjust the support force measured at a desired reference pressing force.
  • the force produced by the piston and cylinder unit 53 is adjusted within a certain range. On the one hand, it must be large enough to overcome the rolling friction of the wheels 43 during approximation of the gluing unit 27. On the other hand, it should not be too large, to avoid coupling oscillating between the gluing unit 27 and the cylinder fluted 13. It turns out that when these conditions, it basically does not appear of oscillation of the width of the gluing gap formed between the gluing cylinder 45 and the grooved cylinder 13. In particular when the mass of the carriage 51 is very large (for example of the order of magnitude of a ton) and the force produced by the piston and cylinder unit 53 is relatively weak, there is a decoupling practically perfect oscillatory between the unit size 27 and the grooved cylinder 13.
  • the force produced by the unit at piston and cylinder 53a is mainly distributed over two channels of force transmission.
  • a first way of force transmission passes, as in the example of realization of figure 2, by the gluing cylinder 45a towards the grooved cylinder 13a and from there to machine chassis. On this channel of transmission of force is transmitted a force which corresponds to the force support between the gluing cylinder 45a and the cylinder grooved 13a.
  • a second force transmission channel extends from the piston and cylinder unit 53a through the carriage 51a and by a stop 79a fixed to the carriage 51a towards a counter-stop 81a cooperating with the stop 79a of the carriage and fixed relative to the chassis 31a of machine, then from there into machine chassis 31a.
  • the counter stop 81a is adjustable.
  • FIG. 3 it is represented by a eccentric which is adjustable by means of a pivoting lever 83a.
  • the pivoting lever 83a is in threaded engagement with a adjustment pin 85a, which can be driven by a electric motor 87a.
  • the electric motor 87a is connected for its part by another control line 89a to the control unit 69a and can be controlled by the unit 69a so that a rotation of the adjustment pin 85a causes lever 83a to pivot and, thus, a displacement of the eccentric 81a.
  • the stop 79a fixed on the carriage 51a is housed another torque sensor 91a, which measures the force transmitted on the second force transmission path.
  • the signal of force measurement delivered by the dynamometric sensor 91a is sent to the control unit 69a via of another measurement signal line 93a.
  • the force active support between the gluing cylinder 45a and the grooved cylinder 13a is determined by calculating the difference between the value of the force measured by the torque sensor 75a, which indicates the total force made available by the piston and cylinder unit 53a, and the force measurement value delivered by the sensor torque 91a, which is a measure of the force transmitted on the second force transmission channel.
  • This difference is made by the control unit 69.
  • the support force thus determined is compared to a predetermined setpoint of the pressing force. Yes the result of the comparison shows a difference, a control signal is delivered to the electric motor 87, which causes a corresponding movement of the eccentric 81, until the deviation noted is eliminated.
  • the ratio between the forces transmitted on the two force transmission channels can be changed.
  • the active pressing force between the gluing cylinder 45a and the grooved cylinder 13a can be varied, for a identical force provided by the piston unit and cylinder 53a.
  • the force transmitted on the second path of force transmission is large compared to force active support transmitted on the first track force transmission.
  • the carriage 51a is therefore pressed with a large excess force against the counter-stop 81a.
  • a targeted adjustment of the friction between the wheels 43 or 43a and the rolling guide 41 or 41a also makes it possible to exercise a targeted influence on the depreciation behavior glue unit 27 or 27a, and therefore reduce still the tendency to form oscillations at the level the width of the gluing gap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Making Paper Articles (AREA)
EP98106093A 1997-04-11 1998-04-03 Vorrichtung zum Herstellen einer beschichteten Materialbahn Expired - Lifetime EP0870598B1 (de)

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Application Number Priority Date Filing Date Title
DE19715174A DE19715174B4 (de) 1997-04-11 1997-04-11 Einrichtung zur Herstellung einer Verbundschichtbahn
DE19715174 1997-04-11

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EP0870598A1 true EP0870598A1 (de) 1998-10-14
EP0870598B1 EP0870598B1 (de) 2005-01-19

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EP (1) EP0870598B1 (de)
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CN110164291A (zh) * 2019-05-08 2019-08-23 冠利得商标制品（苏州）有限公司 金属拉丝面板标签、刷胶装置及其生产工艺

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EP1362690A1 (de) * 2002-05-16 2003-11-19 FOSBER s.r.l. Vorrichtung zur Abstandsreglung zwischen einer Leimwalze und einer Riffelwalze in einer Wellpappemaschine
EP1362691B1 (de) * 2002-05-16 2006-08-23 FOSBER S.p.A. Vorrichtung zum Regeln des Abstands zwischen einem Klebestoffauftragszylinder und eine Riffelwalze für eine Wellpappenmaschine
EP1375023B1 (de) * 2002-06-27 2004-09-15 Metawell GmbH Verfahren zum Umformen eines metallischen Flachmaterials, Herstellungsverfahren für ein Verbundmaterial sowie Vorrichtung zur Durchführung dieser Verfahren
US7468114B2 (en) * 2002-11-13 2008-12-23 Kao Corporation Composite sheet and process and apparatus for producing the same
DE10324729A1 (de) * 2003-05-31 2004-12-16 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Verfahren und Leimwerk zum fortlaufenden Beleimen von Bahnen
ITFI20030159A1 (it) * 2003-06-04 2004-12-05 Fosber Spa Rullo ondulatore per macchine per la produzione di cartone ondulato e macchina comprendente detto rullo.
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JP4944743B2 (ja) * 2007-11-26 2012-06-06 花王株式会社 複合シート
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DE102012212699A1 (de) * 2012-07-19 2014-05-15 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Maschine zur Herstellung von Wellpappe
DE102013216828A1 (de) * 2013-08-23 2015-02-26 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Vorrichtung zur Herstellung einer mindestens einseitig kaschierten Wellpappebahn
CN103660395A (zh) * 2013-11-26 2014-03-26 广东万联包装机械有限公司 瓦楞机的上浆辊保护机构及其上浆辊
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CN107930956A (zh) * 2017-12-28 2018-04-20 浙江玖纺织科技有限公司 浮点乱纹涂布装置及应用该装置的涂布工艺
CN108582963A (zh) * 2018-04-19 2018-09-28 天津市晟春阳纸制品有限公司 一种具有清洗装置的包装材料板复合机及方法

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CN110164291A (zh) * 2019-05-08 2019-08-23 冠利得商标制品（苏州）有限公司 金属拉丝面板标签、刷胶装置及其生产工艺
CN110164291B (zh) * 2019-05-08 2021-03-26 冠利得商标制品（苏州）有限公司 金属拉丝面板标签、刷胶装置及其生产方法

Also Published As

Publication number Publication date
DE19715174B4 (de) 2006-11-09
EP0870598B1 (de) 2005-01-19
US6409857B2 (en) 2002-06-25
DE19715174A1 (de) 1998-10-15
US20010047850A1 (en) 2001-12-06

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