EP4330032B1 - Dispositif de fabrication d'une feuille de carton ondulé contrecollée sur les deux faces - Google Patents

Dispositif de fabrication d'une feuille de carton ondulé contrecollée sur les deux faces Download PDF

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Publication number
EP4330032B1
EP4330032B1 EP22725390.3A EP22725390A EP4330032B1 EP 4330032 B1 EP4330032 B1 EP 4330032B1 EP 22725390 A EP22725390 A EP 22725390A EP 4330032 B1 EP4330032 B1 EP 4330032B1
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EP
European Patent Office
Prior art keywords
web
laminated
corrugated cardboard
laminating
pressing
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.)
Active
Application number
EP22725390.3A
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German (de)
English (en)
Other versions
EP4330032A2 (fr
Inventor
Thomas Hecky
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
BHS Corrugated Maschinen und Anlagenbau GmbH
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Publication of EP4330032A2 publication Critical patent/EP4330032A2/fr
Application granted granted Critical
Publication of EP4330032B1 publication Critical patent/EP4330032B1/fr
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    • 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
    • B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
    • B31F1/285—Heating or drying equipment
    • 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
    • B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
    • B31F1/2877—Pressing means for bringing facer sheet and corrugated webs into contact or keeping them in contact, e.g. rolls, belts
    • B31F1/2881—Pressing means for bringing facer sheet and corrugated webs into contact or keeping them in contact, e.g. rolls, belts for bringing a second facer sheet into contact with an already single faced corrugated web

Definitions

  • the invention relates to an arrangement for producing a double-sided laminated corrugated cardboard web from a laminated web and at least one single-sided laminated corrugated cardboard web according to the preamble of claim 1.
  • the invention is also directed to a corrugated cardboard plant for producing corrugated cardboard with such an arrangement for producing a double-sided laminated corrugated cardboard web.
  • the invention is also directed to a method for producing a double-sided laminated corrugated cardboard web.
  • Corrugated cardboard systems are generally known from the state of the art through obvious prior use.
  • corrugated sheets are generally glued together with cover sheets to form corrugated cardboard sheets laminated on one side.
  • a corrugated cardboard sheet laminated on one side is then glued together with a laminated sheet to form a corrugated cardboard sheet laminated on both sides or two sides.
  • Glue is generally used for this, the adhesive properties of which can be activated by applying heat.
  • the heat transport to the various bonding points to activate the glue is extremely difficult, since the sheets, especially when combined, are extremely thermally insulated.
  • the sheets are often heated in an inhomogeneous manner, which can damage them or lead to a loss of quality.
  • a gluing machine for producing a corrugated cardboard web laminated on both sides has a heating section which is divided into at least two heating sections arranged at a distance from one another in the working direction. Below a working level, a feed means is assigned to an intermediate space for feeding a web to the subsequent heating section. A loading belt is arranged above the heating sections. A single-sided web is fed into the first heating section. To produce a single-wall corrugated cardboard web, a cover web is also fed into the first heating section, where they are glued together. To produce a double-wall corrugated cardboard web, the cover web is first introduced into the subsequent second heating section. A second single-sided web is also fed into the first heating section.
  • first heating section two single-sided webs are glued together.
  • second heating section the cover sheet is glued. If a three-wall corrugated cardboard is to be produced, a third single-sided sheet is fed into the space between the first two heating sections, while a cover sheet is fed into the space between the second and third heating sections.
  • the single-sided corrugated cardboard and the cover sheet are fed in successively and over the length of the gluing machine.
  • the gluing machine is complex.
  • An arrangement for producing a corrugated cardboard web laminated on both sides is known.
  • a laminated web is fed to the arrangement for producing a corrugated cardboard web laminated on both sides via support rods.
  • the arrangement for producing a corrugated cardboard web laminated on both sides also has opposing contact surfaces in the form of endless belt arrangements.
  • the laminated web and a corrugated cardboard web laminated on one side are glued together between the belt arrangements.
  • the US 1,146,771 discloses an arrangement for producing a corrugated cardboard web laminated on both sides.
  • a corrugated intermediate web and a cover web are pressed together and glued together to form a corrugated cardboard web laminated on one side.
  • the corrugated cardboard web laminated on one side and a laminated web are glued together in a pressing gap between a heating table and rotating plates.
  • the known corrugated cardboard plant comprises an arrangement for producing a double-sided laminated corrugated cardboard web, where a glued single-sided laminated corrugated cardboard web is glued to a laminated web.
  • the arrangement for producing a double-sided laminated corrugated cardboard web has contact shoes and a heating area. Downstream of the arrangement for producing a double-sided laminated corrugated cardboard web, traction means are arranged to pull the double-sided laminated corrugated cardboard web.
  • the traction means form a traction gap.
  • the invention is based on the object of providing an improved arrangement for producing a double-sided laminated corrugated cardboard web.
  • the arrangement for producing a double-sided laminated corrugated cardboard web should be able to overcome the problems of the prior art and produce an extremely high-quality, double-sided laminated corrugated cardboard web
  • a corresponding corrugated cardboard plant and a corresponding process for producing a corrugated cardboard web laminated on both sides are also to be created.
  • the core of the invention lies in a laminating web guide which is able to guide the laminating web at a distance from the at least one first pressing gap, which in turn is able to guide the at least one corrugated cardboard web laminated on one side and, if necessary, the laminating web together with it.
  • the laminating web can be guided in the laminating web guide, for example, at a distance or spatially removed from the at least one heating element to the at least one second pressing gap. This can prevent, for example, the laminating web from heating up undesirably, in particular too much, and from being damaged, for example due to increased friction caused by this. This is particularly problematic when the laminating web is printed.
  • the laminating web guide thus preferably forms a type of bypass.
  • the at least one single-sided laminated corrugated cardboard web and the laminated web are transported in a transport or conveying direction, in particular continuously, during operation of the arrangement for producing a double-sided laminated corrugated cardboard web.
  • the at least one second pressing gap is arranged downstream in relation to the conveying direction of the single-sided laminated corrugated cardboard web to the at least one first pressing gap.
  • upstream refers in particular to the conveying direction of the at least one single-sided laminated corrugated cardboard web, the laminated web or the double-sided laminated corrugated cardboard web.
  • the at least one first pressing gap and/or at least one second pressing gap extends at least partially, preferably at least largely, horizontally. It is expedient if the at least one first pressing gap and the at least one second pressing gap extend at least partially, preferably at least largely, parallel or in a common plane.
  • the at least one heating element is preferably designed as a heat exchanger. It can preferably be heated electrically, with thermal oil, hot water and/or steam.
  • the at least one heating element is preferably capable of transferring heat by radiation and/or convection. It heats the one-sidedly laminated corrugated cardboard web running adjacent there in the at least one first pressing gap, preferably directly. It is advantageous if it is arranged adjacent to the at least one first pressing gap. It is advantageously plate-like. It is expedient if the at least one heating element is produced by welding or casting.
  • the webs guided there such as the at least one corrugated cardboard web laminated on one side and the lamination web or several corrugated cardboard webs laminated on one side, can be pressed against one another.
  • One web can be pressed against the at least one heating element, for example.
  • the laminating web guide preferably comprises at least one inlet device on the input side, such as an inlet roller, a curved inlet element and/or an inlet brush device.
  • the at least one inlet device is preferably displaceable and/or heatable.
  • the at least one second pressure belt is preferably endless. It is expedient if this forms a lower pressure belt in the arrangement for producing a corrugated cardboard web laminated on both sides. It is advantageous if the at least one second pressure belt is guided around rollers, in particular deflection rollers. Preferably, at least one of these rollers can be driven in rotation to drive the at least one second pressure belt.
  • the at least one second pressure belt allows pressure to be applied to the laminated web in the laminated web guide, for example in the direction of at least one laminated web heating element. It also enables the laminated web to be conveyed.
  • the laminated web guide is spatially limited by at least one guide roller or at least one guide module.
  • the corrugated cardboard sheet laminated on both sides is endless. For example, it is three-layered, five-layered or seven-layered.
  • the arrangement for producing a corrugated cardboard web laminated on both sides is preferably designed as a heating and pulling arrangement or a heating and pressing arrangement.
  • the lamination web delivery arrangement is designed as a lamination web splice arrangement for delivering an endless lamination web.
  • the at least one production device for producing a respective one-sidedly laminated corrugated cardboard web has a corrugating device for corrugating a material web to be corrugated to form a corrugated web.
  • the at least one manufacturing device for producing a respective one-sided laminated corrugated cardboard web has a gluing device for gluing the corrugated web.
  • the at least one first pressing belt according to dependent claim 2 is preferably endless. It is expedient if the at least one first pressing belt forms an upper pressing belt in the arrangement for producing a corrugated cardboard web laminated on both sides. This is advantageously guided around rollers, in particular deflection rollers. Preferably, at least one of these rollers can be driven in rotation to drive the at least one first pressing belt.
  • the at least one first pressing belt leads in particular to a pressing of the webs in the at least one first pressing gap against one another and preferably to a pressing of the webs in the at least one first pressing gap in the direction of the at least one heating element. It also enables the at least one corrugated cardboard web laminated on one side to be conveyed.
  • the at least one first pressing gap is spatially limited by at least one first pressing roller or at least one first pressing module.
  • the at least one first pressure belt is designed as a fabric belt, felt belt or sieve belt.
  • the at least one first pressure belt is coated in order to increase adhesion between the adjacent one-sided laminated corrugated cardboard web and the at least one first pressure belt.
  • the arrangement in which the at least one first pressure belt also spatially delimits the at least one second pressure gap at least in some areas is particularly reliable and results in a particularly high-quality corrugated cardboard web laminated on both sides. Synchronization between the at least one first pressure gap and the at least one second pressure gap or corresponding pressure devices is thus no longer necessary.
  • the arrangement according to subclaim 3 is particularly reliable and allows the production of a high-quality corrugated cardboard web laminated on both sides. Synchronization between the laminated web guide and the second pressing gap or corresponding devices is thus no longer necessary.
  • the at least one second pressure belt is designed as a fabric belt, felt belt or sieve belt. It is preferably open-pored or permeable at least in some areas in order to enable heat to be transported, for example in the at least one first pressure gap, at least to the laminated web, if it runs there, or preferably at least to the adjacent one-sided laminated corrugated cardboard web.
  • the at least one second pressure belt is coated in order to increase adhesion between the at least one second pressure belt and the laminated web.
  • the at least one second pressure belt is, for example, heated or heatable.
  • the at least one tension-changing device is preferably formed by a roller around which the at least one second pressure belt is guided. This is preferably adjustable or displaceable, in particular perpendicular to its central axis. It is expedient if, by actuating the at least one tension-changing device, a pressing force of the at least one second pressure belt on the laminated web in the laminated web guide and/or in the at least one second pressing gap can be adjusted.
  • the pressing force is preferably dependent on a required heating of the laminated web or the corrugated cardboard web laminated on both sides. It is expedient if the at least one tension-changing device is arranged on the input side in relation to the laminated web guide.
  • the gluing unit according to subclaim 5 is arranged downstream of the at least one first pressing gap and upstream of the at least one second pressing gap. It is expedient if the gluing unit has a glue bath.
  • the gluing unit advantageously has a glue application roller for applying the glue from the glue bath to the single-sided laminated corrugated cardboard web to be glued to the laminated web, in particular to its corrugated web.
  • the glue application roller is preferably assigned a glue metering roller in order to form a uniform glue film on the glue application roller. It is expedient if the gluing unit has at least one pressure roller for pressing the single-sided laminated corrugated cardboard web to be glued onto the glue application roller.
  • the gluing unit is preferably designed and/or arranged in such a way that the single-sided laminated corrugated cardboard web to be glued is glued from below. Free tips of the corrugation of the single-sided laminated corrugated cardboard web are thus directed downwards.
  • the gluing unit can be moved at least partially vertically and/or horizontally or laterally.
  • at least one glue application roller and/or pressure roller of the gluing unit can be moved accordingly.
  • at least one drive, motor or the like is preferably present.
  • the gluing unit can preferably be moved between the active position and the inactive position in its entirety, preferably in a vertical direction and/or in a transverse direction of the arrangement. It is expedient if the gluing unit is located in an inactive position, for example to the side or next to the arrangement or the webs. It is thus moved horizontally in a transverse direction of the arrangement/corrugated cardboard system or perpendicular to a longitudinal direction of the arrangement/corrugated cardboard system. It is then moved horizontally in a transverse direction of the webs.
  • the gluing unit can advantageously be moved horizontally laterally out of the arrangement/corrugated cardboard system. At least one drive, motor or the like is advantageously provided for this purpose.
  • the at least one first pressure belt preferably with its lower belt, is guided through the gluing unit.
  • it is guided between at least one pressure roller and glue application roller of the gluing unit.
  • the at least one pressure belt is guided past the gluing unit, in particular at the top.
  • the gluing unit in particular in its entirety, can be moved out laterally from the arrangement for producing a corrugated cardboard web laminated on both sides. It is advantageous if the gluing unit is in a raised or active position during printing.
  • the gluing unit is advantageously in a lowered or inactive position during normal operation or during normal production. Reverse positions are alternatively possible.
  • the design according to subclaim 8 allows heating of the lamination web in the lamination web guide. It is expedient if the at least one lamination web heating element can be heated electrically, with thermal oil, hot water and/or steam. It preferably limits the lamination web guide at least in some areas, advantageously at the top.
  • the lamination web lies at least partially directly against the at least one lamination web heating element.
  • the at least one lamination web heating element is advantageously curved. It preferably has a curved lamination web contact surface for appropriate guidance or contact of the lamination web. The conveyed lamination web can be deflected accordingly.
  • the at least one lamination web heating element is preferably adjustable. This design allows, for example, adaptation to the respective lamination web. Preferably, heating of the lamination web can be influenced in this way, for example via an effective contact surface.
  • the at least one lamination web heating element can be vertically displaced at least in some areas and/or pivoted about a respective horizontal pivot axis.
  • the at least one lamination element is immobile and/or flat.
  • the design according to subclaim 9 in particular prevents damage to the outside of the lamination sheet by the at least one lamination sheet heating element, which is particularly advantageous if the outside is printed. It is expedient if the at least one lamination sheet heating element heats the lamination sheet from above or is arranged above it.
  • the arrangement according to dependent claim 10 allows the lamination web to be guided in two different ways.
  • the lamination web guide allows the lamination web to be guided past the at least one first pressing gap, so that the lamination web guide forms a type of bypass guide.
  • the lamination web can also be guided together with at least one corrugated cardboard web laminated on one side, if desired, through the at least one first pressing gap.
  • the respective path of the lamination web is preferably selected depending on the design of the lamination web, in particular depending on the printing on the same.
  • the lamination web can be guided in a protected or gentle manner in the lamination web guide.
  • the arrangement preferably comprises at least one corrugated sheet steam supply device for supplying steam to a respective corrugated sheet of the at least one single-sided laminated corrugated cardboard sheet. It is expedient if the at least one corrugated sheet steam supply device is arranged adjacent to or borders the at least one first pressing gap.
  • the at least one corrugated sheet steam supply device is preferably capable of remoistening the respective corrugated sheet of at least one adjacent single-sided laminated corrugated cardboard sheet there. It is expedient if the at least one corrugated sheet steam supply device heats the respective single-sided laminated corrugated cardboard sheet.
  • the arrangement preferably has at least one glue-steam supply device for supplying steam to the glue of the single-sided laminated corrugated cardboard web to be glued to the laminated web.
  • the at least one glue-steam supply device is preferably arranged upstream of the at least one second pressing gap and is advantageously arranged adjacent to it.
  • the at least one glue-steam supply device is able to pre-penetrate the glue of the single-sided laminated corrugated cardboard web to be glued to the laminated web.
  • the embodiment according to subclaim 11 allows, for example, a particularly high and easily adjustable heat transfer between the at least one heating element and the one-sided laminated corrugated cardboard web to be glued to the laminating web, if it runs there.
  • the at least one contact pressure adjustment device is designed, for example, as a pressure roller, pressure chain, pressure plate, pressure belt or pressure shoe.
  • the contact pressure adjustment device is preferably displaceable in the vertical direction. It is arranged, for example, upstream of the at least one second pressure gap and then preferably arranged adjacent to it. Alternatively or additionally, the at least one contact pressure adjustment device is arranged adjacent to the at least one second pressure gap and/or (co-)forms it.
  • the arrangement is preferably designed in such a way that a glue connection in the at least one first pressing gap between at least two of the single-sided laminated corrugated cardboard webs and a glue connection in the at least one second pressing gap between one of the single-sided laminated corrugated cardboard webs and the laminate web are offset, in particular offset in time.
  • the glue connection between the at least two single-sided laminated corrugated cardboard webs and the glue connection between one of the single-sided laminated corrugated cardboard webs and the laminate web are offset or divided in time and/or space.
  • the glue connections begin one after the other and preferably run one after the other.
  • the laminate web is advantageously only fed in at a later point in time in order to bring about a temporal offset in its glue connection with a single-sided laminated corrugated cardboard web.
  • the adhesive bond between the at least two corrugated cardboard webs laminated on one side is incomplete in the at least one first pressing gap when leaving the at least one first pressing gap.
  • the adhesive bond between the at least two corrugated cardboard webs laminated on one side is only completed or concluded in the at least one second pressing gap.
  • it is expedient if the adhesive bond between the at least two corrugated cardboard webs laminated on one side is completed or concluded in the at least one first pressing gap when leaving the at least one first pressing gap. This can be influenced, for example, by the at least one heating element or its heating output.
  • the switch device according to the dependent claim 14 is preferably adjustable or switchable between different switch positions.
  • it preferably has at least one displaceable, in particular pivotable, for example plate-like, switch element.
  • the switch device In a first position of the switch device, the lamination web can be guided, for example, to the at least one first pressing gap, while in a second position of the switch device, the lamination web can be guided to the lamination web guide.
  • the switch device is part of the arrangement for producing a double-sided laminated corrugated cardboard web and is then arranged on the input side in relation to this.
  • the switch device can also be the subject of an independent invention. It is then provided for an arrangement for producing a double-sided laminated corrugated cardboard web or corrugated cardboard system.
  • the at least one separating device according to dependent claim 14 is preferably capable of completely separating the laminated web in its transverse direction, forming a leading web section and a trailing web section. It is designed, for example, as a jet separating device, such as a water jet or laser beam separating device. Alternatively, the at least one separating device comprises, for example, at least one knife element, which can be driven in rotation or displaced in a traversing manner, for example.
  • the separating device is designed, for example, as a cross-cutting device, short cross-cutting device, longitudinal cutting device, rotary punch or the like.
  • the at least one separating device is, for example, part of the arrangement for producing a corrugated cardboard web laminated on both sides and is then arranged on the input side in relation to this.
  • a corrugated cardboard plant is capable of producing an endless five-layer, double-sided laminated corrugated cardboard web 1 or corresponding five-layer, double-sided laminated corrugated cardboard sheets (not shown).
  • the corrugated cardboard plant comprises a first production device for producing a one-sidedly laminated first corrugated cardboard web 2.
  • a first cover web splicing device for providing an endless first cover web and a first material web splicing device for providing an endless first material web are arranged upstream of the first production device for producing a one-sidedly laminated first corrugated cardboard web 2.
  • the first manufacturing device for producing a first corrugated cardboard web 2 laminated on one side comprises a rotatably mounted first corrugating roller and a rotatably mounted second corrugating roller for producing an endless first corrugated web having a corrugation from the endless first material web.
  • the corrugating rollers form a first roller gap for passing through and corrugating the endless first material web.
  • the first manufacturing device for producing a one-sided laminated first corrugated cardboard web 2 has a first gluing device which comprises a first glue metering roller, a first glue container and a first glue application roller.
  • the first glue application roller forms a first glue gap with the first corrugating roller.
  • the glue in the first glue container is applied to the tips of the corrugation of the endless first corrugated web via the first glue application roller.
  • the first glue metering roller rests against the first glue application roller and serves to form a uniform glue layer on the first glue application roller.
  • the endless first cover sheet is then joined to the endless first corrugated sheet provided with glue from the first glue container in the first production device to produce a one-sidedly laminated first corrugated cardboard sheet 2.
  • the first production device for producing a one-sidedly laminated first corrugated cardboard sheet 2 has a first pressing module, which is advantageously designed as a pressing belt module. It is arranged above the first corrugating roller.
  • the first pressing module has two first deflection rollers and an endless first pressing belt, which is guided around the two first deflection rollers.
  • the first corrugating roller engages in a space between the first deflection rollers from below, whereby the first pressure belt is deflected by the first corrugating roller.
  • the first pressure belt presses against the endless first cover sheet, which in turn is pressed against the first corrugated sheet, which is provided with glue and is in contact with the first corrugating roller.
  • the corrugated cardboard plant also comprises a second production device for producing a second corrugated cardboard web 3 laminated on one side.
  • the second manufacturing device for producing a one-sidedly laminated second corrugated cardboard web 3 is advantageously designed like the first manufacturing device for producing a one-sidedly laminated first corrugated cardboard web 2.
  • a second cover sheet splicing device for providing an endless second cover sheet and a second material sheet splicing device for providing an endless second material sheet are arranged upstream of the second manufacturing device for producing a one-sidedly laminated second corrugated cardboard web 3.
  • the second production device comprises a rotatably mounted third corrugating roller and a rotatably mounted fourth corrugating roller for producing an endless second corrugated web having a corrugation from the endless second material web.
  • the corrugating rollers form a second roller gap for passing through and corrugating the endless second material web.
  • the second manufacturing device for producing a one-sided laminated second corrugated cardboard web 3 has a second gluing device which a second glue metering roller, a second glue container and a second glue application roller.
  • the second glue application roller forms a second glue gap with the third corrugated roller.
  • the glue in the second glue container is applied to the tips of the corrugation of the endless second corrugated web via the second glue application roller.
  • the second glue metering roller lies against the second glue application roller and serves to form an even layer of glue on the second glue application roller.
  • the endless second cover sheet is then joined to the endless second corrugated sheet provided with glue from the second glue container in the second production device to produce a one-sidedly laminated second corrugated cardboard sheet 3.
  • the second production device for producing a one-sided laminated second corrugated cardboard sheet 3 has a second pressing module.
  • the second pressing module is advantageously designed as a pressing belt module. It is arranged above the third corrugating roller.
  • the second pressing module has two second deflection rollers and an endless second pressing belt that is guided around the two second deflection rollers.
  • the third corrugating roller engages in a space between the two second deflection rollers at the bottom, whereby the second pressure belt is deflected by the third corrugating roller.
  • the second pressure belt presses against the endless second cover sheet, which in turn is pressed against the endless second corrugated sheet, which is provided with glue and is in contact with the third corrugating roller.
  • the corrugated cardboard machine also has a laminating web splicing device for providing an endless laminating web 4.
  • the endless laminating web 4 is single-layered and smooth. It can already be printed or can be printed. It can also be or remain unprinted.
  • the corrugated cardboard plant Downstream of the first manufacturing device for producing a one-sided laminated first corrugated cardboard web 2 and the second manufacturing device for producing a one-sided laminated second corrugated cardboard web 3 and the laminated web splicing device, the corrugated cardboard plant comprises a gluing unit.
  • the gluing unit has a first gluing roller which is partially immersed in a first glue bath and is able to glue the first corrugated web of the first corrugated cardboard web 2 laminated on one side.
  • the gluing unit also comprises a second gluing roller which is partially immersed in a second glue bath and is able to glue the second corrugated web of the second corrugated cardboard web 3 laminated on one side.
  • a preheating device is arranged upstream of the gluing unit, which is capable of heating the first corrugated cardboard web 2 laminated on one side and the second corrugated cardboard web 3 laminated on one side as well as the laminated web 4.
  • the preheating device advantageously has corresponding heating rollers around which the respective webs 2, 3 or 4 are wrapped.
  • the first manufacturing device for producing a one-sided laminated first corrugated cardboard web 2 the first cover web splicing device, the first material web splicing device, the second manufacturing device for producing a one-sided laminated second corrugated cardboard web 3, the second cover web splicing device, the second material web splicing device, the laminate web splicing device and the gluing unit as well as the preheating device, if present, are according to Fig. 1 together assigned the reference number 5.
  • the corrugated cardboard plant also has an arrangement 6 for producing a double-sided laminated corrugated cardboard web 1, which is arranged downstream of the gluing unit.
  • the arrangement 6 for producing a double-sided laminated corrugated cardboard web 1 the single-sided laminated first corrugated cardboard web 2 and the single-sided laminated second corrugated cardboard web 3 as well as the laminated web 4 are each conveyed in a conveying direction 7.
  • the arrangement 6 for producing a corrugated cardboard web 1 laminated on both sides comprises a first frame 8 and a second frame 9, which is arranged downstream of the first frame 8 in the conveying direction 7.
  • the first frame 8 and the second frame 9 are supported on a base 10, such as the hall floor, and are arranged spatially separated from one another, for example. Alternatively, they are combined to form a common frame.
  • upper or first guide rollers 11 are rotatably mounted on the first frame 8 and the second frame 9, the central axes of which are parallel to each other and horizontal as well as perpendicular to the conveying direction 7. At least one upper guide roller 11 can be driven in rotation by a motor. An endless upper or first pressure belt 12 is guided around the upper guide rollers 11 and can be driven continuously in a first circumferential direction 13.
  • lower or second guide rollers 14 are rotatably mounted on the first frame 8 and second frame 9, the center axes of which run parallel to one another and horizontally and perpendicularly to the conveying direction 7. At least one lower guide roller 14 can be driven in rotation by a motor. An endless lower or second pressure belt 15 is guided around the lower guide rollers 14 and can be driven continuously in a second circumferential direction 16.
  • the first frame 8 carries several plate-shaped heating elements 17, which are arranged at a distance from one another in the conveying direction 7.
  • the first heating element 17 in the conveying direction 7 is designed as an inlet heating element and is curved. With the exception of the inlet heating element 17, the heating elements 17 form a heating plane.
  • the first frame 8 also carries corrugated sheet steam feed devices 18, which are arranged one after the other in the conveying direction 7 and extend in the heating plane or adjacently below it. They are able to expel steam upwards.
  • the corrugated sheet steam feed devices 18 are preferably arranged between heating elements 17.
  • a lower belt or underside of the upper pressure belt 12 and an upper belt or top side of the lower pressure belt 15 together form a first pressure gap 19.
  • the lower belt or underside of the upper pressure belt 12 and the upper belt or top side of the lower pressure belt 15 run parallel to one another and horizontally. They have a common circumferential direction 13 or 16 and extend adjacent to one another.
  • the lower belt or underside of the upper pressure belt 12 limits the first pressure gap 19 at the top, while the upper belt or top side of the lower pressure belt 15 limits the first pressure gap 19 at the bottom.
  • the first pressure gap 19 has a first inlet 19a and a first outlet 19b.
  • a further inlet heating element 21 is arranged upstream of the first pressing gap 19, which is arranged on the first frame 8, in particular displaceable, in particular pivotable, and carries a corrugated sheet steam feed device 22 at the top.
  • the corrugated sheet steam feed device 22 is designed like the corrugated sheet steam supply directions 18 and is capable of ejecting steam upwards.
  • the upper pressing belt 12 is assigned first or upper pressing shoes 20, which are arranged at a distance from one another in the conveying direction 7 and there press the lower belt of the upper pressing belt 12 in the direction of the adjacent heating element 17 or downwards.
  • a number of laminated web heating elements 23 are arranged on the first frame 8 below the first pressing gap 19, which are arranged one after the other in the conveying direction 7 and are each pivotable.
  • the laminated web heating elements 23 extend between adjacently arranged lower guide rollers 14.
  • An inlet laminated web heating element 23 is flat, while the downstream laminated web heating elements 23 are each curved.
  • the lamination web heating elements 23 form a lamination web guide 35, which is gap-like, together with an upper belt or an upper side of the lower pressure belt 15.
  • the upper belt or the upper side of the lower pressure belt 15 limits the lamination web guide 35 downwards, while the lamination web heating elements 23 limit the lamination web guide 35 upwards.
  • a plurality of second or upper pressure shoes 24 are arranged on the second frame 9, which extend horizontally and at a distance from one another in the conveying direction 7 and, according to a preferred embodiment, can be moved vertically to adjust the contact pressure.
  • the upper pressure shoes 24 are assigned lower counter-pressure shoes 25, which are also arranged on the second frame 9.
  • the lower belt or the underside of the upper pressure belt 12 and the upper belt or the top side of the lower pressure belt 15 run between the upper pressure shoes 24 and lower counter-pressure shoes 25. There they extend adjacent to and parallel to one another and horizontally, forming a second pressure gap 26. They are pressed towards one another by the upper pressure shoes 24 and lower counter-pressure shoes 25.
  • the lower belt of the upper pressure belt 12 and the upper belt of the lower pressure belt 15 have a common circumferential direction 13 and 16 respectively and extend adjacent to one another.
  • the second pressure gap 26 has a second inlet 26a and a second outlet 26b.
  • the laminating web heating elements 23 extend (essentially) to the second pressing gap 26.
  • the lower guide roller 14 arranged on the inlet side with respect to the laminating web guide 35 is wrapped by the lower pressure belt 15 over a circumferential range between 150° and 250° and can be displaced horizontally to change the tension of the lower pressure belt 15.
  • a gluing unit 27 is arranged between the first frame 8 and the second frame 9 and is supported on the substrate 10. Alternatively, the gluing unit 27 is arranged on the first frame 8 and/or second frame 9.
  • the gluing unit 27 has a glue application roller 29 immersed in a glue bath 28, against which a glue metering roller 30 of the gluing unit 27 rests on the circumference.
  • the gluing unit 27 also has a pressure roller 31 which is arranged above the glue application roller 29 and adjacent to it.
  • the glue application roller 29 and the glue metering roller 30 as well as the pressure roller 31 extend parallel to one another and horizontally. They run perpendicular to the conveying direction 7.
  • the glue application roller 29 and the pressure roller 31 can each be moved vertically between an active gluing position and an inactive parking position.
  • a glue-steam supply device 32 which is designed like the corrugated web-steam supply device 18 or 22 and is capable of ejecting steam upwards.
  • the corrugated cardboard plant also has a longitudinal cutting/creasing device which is arranged downstream of the arrangement 6 for producing a double-sided laminated corrugated cardboard web 1.
  • Longitudinal cutting units of the longitudinal cutting/creasing device are able to cut the double-sided laminated corrugated cardboard web 1 to form partial corrugated cardboard webs in the conveying direction 7.
  • Creasing units of the longitudinal cutting/creasing device are able to crease the double-sided laminated corrugated cardboard web 1 to simplify subsequent folding.
  • the corrugated cardboard plant includes a switch for dividing the produced partial corrugated cardboard webs into different levels.
  • the corrugated board plant also has a cross-cutting device with partial cross-cutting devices in order to completely cut the partial corrugated board webs in a transverse or width direction to form corrugated board sheets.
  • the corrugated cardboard sheets can be stacked in the respective stacking trays of the corrugated cardboard machine.
  • the longitudinal cutting/creasing device, the switch and the cross cutting device as well as the stacking trays are combined according to Fig. 1 assigned the reference number 36.
  • a short cross-cutting device can also be present.
  • the gluing unit uses its first gluing roller to glue the first corrugated web of the one-sided laminated first corrugated cardboard web 2 and its second gluing roller to glue the second corrugated web of the one-sided laminated second corrugated cardboard web 3.
  • the one-sidedly laminated endless first corrugated cardboard web 2 and the one-sidedly laminated endless second corrugated cardboard web 3 as well as the endless laminated web 4 are fed to the arrangement 6 for producing a double-sidedly laminated corrugated cardboard web 1.
  • the pressure belts 12, 15 are each driven in their circumferential direction 13 and 16, respectively.
  • the bottom-glued, one-sidedly laminated first corrugated cardboard web 2 is guided upstream to the first pressing gap 19 above the inlet heating element 21.
  • the corrugated web steam feed device 22 emits steam from bottom to top so that it hits the first corrugated web of the one-sidedly laminated first corrugated cardboard web 2 or the glue located there. This also ensures that the glue is heated.
  • the first corrugated web of the one-sidedly laminated first corrugated cardboard web 2 is located there below the first cover web of the one-sidedly laminated first corrugated cardboard web 2.
  • the one-sidedly laminated first corrugated cardboard web 2 enters the first pressing gap 19 on the inlet side, i.e. via the first inlet 19a, ( Fig. 1 , left), where the first corrugated sheet of the one-sided laminated first corrugated cardboard sheet 2 is still located below the first cover sheet of the one-sided laminated first corrugated cardboard sheet 2.
  • the glued-on-one-sided second corrugated cardboard web 3 is guided along the bottom of the inlet heating element 21 and is heated by it from above.
  • the second corrugated web of the one-sidedly laminated second corrugated cardboard web 3 is located there below the second cover web of the one-sidedly laminated second corrugated cardboard web 3.
  • On the inlet side it enters the first pressing gap 19 under the one-sidedly laminated first corrugated cardboard web 2, i.e. via the first inlet 19a, where the second corrugated web of the one-sidedly laminated second corrugated cardboard web 3 is also located below the second cover web of the one-sidedly laminated second corrugated cardboard web 3.
  • the laminated web 4 runs around two deflection rollers 33, 34 arranged one above the other, which are arranged above an inlet or entrance 35a of the laminated web guide 35.
  • the laminated web 4 is guided upwards. It is guided via the inlet heating element 17 to the first pressing gap 19 and is heated in the process. It then enters the first pressing gap 19 under the corrugated cardboard webs 2, 3 laminated on one side on the inlet side, i.e. via the first inlet 19a.
  • the first corrugated cardboard web 2 laminated on one side and the second corrugated cardboard web 3 laminated on one side as well as the laminated web 4 are pressed together in the first pressing gap 19 and glued together to form the corrugated cardboard web 1 laminated on both sides. These are conveyed in the conveying direction 7 through the first pressing gap 19.
  • the laminated web 4 is heated directly from below by the heating elements 17.
  • the corrugated cardboard webs 2, 3 laminated on one side are also heated by the heating elements 17.
  • the lamination web guide 35 remains unused.
  • the corrugated web steam feed devices 18 and lamination web heating elements 23 are out of operation or inactive.
  • the corrugated cardboard web 1, laminated on both sides, and the lower belt of the upper pressing belt 12 are guided upwards, for example, in the area of the gluing unit 27.
  • the gluing unit 27 is inactive here. It is, for example, in a lower parking position (not shown) or lateral parking position (cf. Fig. 2A ).
  • the corrugated cardboard web 1 laminated on both sides and the lower belt of the upper pressure belt 12 can thus remain undeflected in the area of the gluing unit 27 and continue to run at the level of the first pressure gap 19.
  • the gluing unit 27 is moved horizontally out of the arrangement 6 into its lateral parking position for producing a double-sided laminated corrugated cardboard web 1 or the corrugated cardboard system.
  • the glue-steam supply device 32 is inactive.
  • the double-sided laminated corrugated cardboard web 1 then enters the second pressing gap 26 on the input side or inlet side, i.e. via the second inlet 26a, where the single-sided laminated first corrugated cardboard web 2, the single-sided laminated second corrugated cardboard web 3 and the laminated web 4 are preferably pressed further against one another. They are conveyed through the second pressing gap 26 in the conveying direction 7.
  • the glue of the double-sided laminated corrugated cardboard web 1 hardens further, for example, in the second pressing gap 26.
  • the corrugated cardboard web 1 laminated on both sides then leaves the second pressure gap 26 on the output side.
  • the gluing unit uses its first gluing roller to apply glue to the first corrugated web of the one-sidedly laminated first corrugated cardboard web 2.
  • the second gluing roller is inactive, so that the second corrugated web of the one-sidedly laminated second corrugated cardboard web 3 remains unglued.
  • the first corrugated cardboard web 2 laminated on one side and the second corrugated cardboard web 3 laminated on one side are introduced into the first pressing gap 19 on the input side, where they are pressed against one another and glued together.
  • the pressing belts 12, 15 are each driven in their circumferential direction 13 and 16, respectively.
  • the bottom-glued, one-sided laminated first corrugated cardboard web 2 is guided upstream to the first pressing gap 19 above the inlet heating element 21.
  • the corrugated web steam feed device 22 emits steam from bottom to top so that it is applied to the first Corrugated sheet of the one-sided laminated first corrugated cardboard sheet 2 or the glue located there. This also ensures that the glue heats up.
  • the first corrugated sheet of the one-sided laminated first corrugated cardboard sheet 2 is located there below the first cover sheet of the one-sided laminated first corrugated cardboard sheet.
  • the one-sided laminated first corrugated cardboard sheet 2 enters the first pressing gap 19 on the inlet side or entrance side, i.e. via the first inlet 19a, where the first corrugated sheet of the one-sided laminated first corrugated cardboard sheet 2 is also located below the first cover sheet of the one-sided laminated first corrugated cardboard sheet 2.
  • the unglued, one-sidedly laminated second corrugated cardboard web 3 is guided along the bottom of the inlet heating element 21 and is heated by it from above.
  • the second corrugated web of the one-sidedly laminated second corrugated cardboard web 3 is located there below the second cover web of the one-sidedly laminated second corrugated cardboard web 3. It enters the first pressing gap 19 on the inlet side under the one-sidedly laminated first corrugated cardboard web 2, i.e. via the first inlet 19a, where the second corrugated web of the one-sidedly laminated second corrugated cardboard web 3 is also located below the second cover web of the one-sidedly laminated second corrugated cardboard web 3.
  • the corrugated web steam feed devices 18 are active and emit steam from below onto the one-sidedly laminated second corrugated cardboard web 3 or its second corrugated web.
  • the first corrugated cardboard web 2 laminated on one side and the second corrugated cardboard web 3 laminated on one side are pressed against one another and glued together in the first pressing gap 19. These are conveyed in the conveying direction 7 through the first pressing gap 19.
  • the corrugated cardboard webs 2, 3 glued together and laminated on one side then emerge in a composite on the output side or outlet side from the first pressing gap 19, i.e. via the outlet 19b, and are preferably undeflected, compared to the operation according to Fig. 1 guided through the gluing unit 27, while the lower belt of the upper pressure belt 12 is guided past the top of the gluing unit 27.
  • the gluing unit 27 is active and applies glue from below with its glue application roller 29 to the second single-sided laminated corrugated cardboard web 3 or its second corrugated web.
  • the pressure roller 31 presses the second single-sided laminated corrugated cardboard web 3 or its second corrugated web against the glue application roller 29 from above.
  • the gluing unit 27 is, for example, in its upper gluing position.
  • the glue-steam supply device 32 is active and emits steam from below onto the glue on the second corrugated web of the second single-sided laminated corrugated cardboard web 3.
  • the laminated web 4 is guided through the laminated web guide 35, where it is heated from above or from its inside by the active laminated web heating elements 23.
  • the inside of the laminated web 4 faces away from its outside and is located on the inside of the finished corrugated cardboard web 1 laminated on both sides.
  • the lower pressure belt 15 or its underside presses the laminated web 4 at least in some areas against the laminated web heating elements 23 and ensures that the laminated web 4 is conveyed through the laminated web guide 35.
  • the laminated web 4 is guided past the gluing unit 27 at the bottom.
  • the single-sided laminated corrugated cardboard webs 2, 3 and the laminated web 4 then enter the second pressing gap 26 on the input side or inlet side, i.e. via the second inlet 26a, where the single-sided laminated first corrugated cardboard web 2, the single-sided laminated second corrugated cardboard web 3 and the laminated web 4 are pressed together to form the double-sided laminated corrugated cardboard web 1.
  • the single-sided laminated second corrugated cardboard web 3 and the laminated web 4 are glued together in the process.
  • the single-sided laminated corrugated cardboard webs 2, 3 and the laminated web 4 are conveyed through the second pressing gap 26 in the conveying direction 7.
  • the corrugated cardboard web 1 laminated on both sides then leaves the second pressing gap 26 on the exit side or outlet side, i.e. via the second outlet 26b.
  • the arrangement 6 for producing a double-sided laminated corrugated cardboard web 1 can also be used with just one single corrugated cardboard web 2 or 3.
  • the double-sided laminated corrugated cardboard web 1 is then three-layered. The operating modes explained are also possible in this case.
  • a second embodiment of the arrangement 6 for producing a double-sided laminated corrugated cardboard web 1 is described.
  • the lower belt of the upper pressure belt 12 runs through the gluing unit 27. It is guided between the glue application roller 29 and the pressure roller 31.
  • the laminating web 4 can be guided through the first pressing gap 19 or the laminating web guide 35 to the second pressing gap 26.
  • a separating and switching arrangement 37 of the corrugated cardboard plant is described, which can be used in all embodiments of the arrangement 6 for producing a corrugated cardboard web 1 laminated on both sides.
  • the arrangement 6 for producing a double-sided laminated corrugated cardboard web 1 is, as can be seen from Fig. 5 As can be seen, the separating and switching arrangement 37 is arranged upstream, which in turn is assigned to the laminating web 4 and is able to act on it.
  • the separating and switching arrangement 37 comprises a cross-cutting device 38, which in turn has two rotationally drivable cross-cutting rollers 39 arranged one above the other with radially outwardly extending blades 40.
  • the blades 40 are able to work together and produce a cut in the laminated web 4 that extends over the full width of the laminated web 4.
  • the cross-cutting rollers 39 are set in rotation accordingly.
  • the separating and switching arrangement 37 also has a switching device 41 which is arranged downstream of the transverse separating device 38.
  • the switching device 41 has a plate-like switching element 42 which can be pivoted about a horizontal front pivot axis 43 between a lower, for example horizontal, switching position and an upper switching position.
  • the pivot axis 43 extends in the transverse direction of the arrangement 6 for producing a corrugated cardboard web 1 laminated on both sides.
  • the laminated web 4 In the lower switch position of the switch element 42, the laminated web 4 can be guided to the laminated web guide 35. In the upper switch position of the switch element 42, the laminated web 4 can be guided to the first pressing gap 19. The laminated web 4 is guided along the top of the switch element 42.
  • the transverse cutting device 38 is actuated so that the laminated web 4 is completely severed in its transverse direction.
  • the leading web section of the laminated web 4 is via the previously used first pressing gap 19 from the corrugated cardboard plant or the arrangement 6 for producing a corrugated cardboard web 1 laminated on both sides.
  • the switch element 42 is pivoted from its upper switch position to its lower switch position.
  • the trailing web section is then guided or conveyed via the switch device 41 to the laminating web guide 35.
  • a reverse change of the laminating web 4 from the laminating web guide 35 into the first pressing gap 19 takes place essentially analogously.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Laminated Bodies (AREA)
  • Making Paper Articles (AREA)

Claims (15)

  1. Agencement pour la fabrication d'une bande de carton ondulé (1) contrecollée sur les deux faces à partir d'une bande de contrecollage (4) et d'au moins une bande de carton ondulé (2, 3) contrecollée sur une face,
    a) comportant au moins une première fente de pression (19) permettant de guider l'au moins une bande de carton ondulé (2, 3) contrecollée sur une face,
    b) comportant au moins un élément chauffant (17) permettant de chauffer au moins une bande de carton ondulé (2, 3) contrecollée sur une face dans l'au moins une première fente de pression (19),
    c) comportant au moins une seconde fente de pression (26) disposée en aval de l'au moins une première fente de pression (19) et permettant de presser l'une contre l'autre l'au moins une bande de carton ondulé (2, 3) contrecollée sur une face et la bande de contrecollage (4), et
    d) comportant un guide pour bande de contrecollage (35) disposé à distance de l'au moins une première fente de pression (19) et permettant de guider la bande de contrecollage (4) à distance de l'au moins une première fente de pression (19) vers l'au moins une seconde fente de pression (26),
    caractérisé par
    e) au moins une seconde courroie de pression (15) pouvant être entraînée, laquelle délimite spatialement, au moins dans certaines zones, le guide pour bande de contrecollage (35) et permet une sollicitation par pression de la bande de contrecollage (4) dans le guide pour bande de contrecollage (35).
  2. Agencement selon la revendication 1, caractérisé par au moins une première courroie de pression (12) pouvant être entraînée, laquelle délimite spatialement, au moins dans certaines zones, l'au moins une première fente de pression (19) et de préférence délimite également spatialement, au moins dans certaines zones, l'au moins une seconde fente de pression (26).
  3. Agencement selon la revendication 1 ou 2, caractérisé en ce que l'au moins une seconde courroie de pression (15) délimite également spatialement, au moins dans certaines zones, l'au moins une seconde fente de pression (26).
  4. Agencement selon l'une des revendications précédentes, caractérisé par au moins un appareil de modification de tension (14) actionnable permettant de modifier une tension de l'au moins une seconde courroie de pression (15).
  5. Agencement selon l'une des revendications précédentes, caractérisé par un mécanisme d'encollage (27) disposé entre l'au moins une première fente de pression (19) et seconde fente de pression (26) et permettant d'encoller, de préférence par le bas, la bande de carton ondulé (3) contrecollée sur une face et devant être reliée par collage à la bande de contrecollage (4).
  6. Agencement selon la revendication 5, caractérisé en ce que le mécanisme d'encollage (27) peut être déplacé au moins partiellement entre une position active et une position inactive, de préférence dans sa totalité, de préférence dans une direction de hauteur et/ou dans une direction transversale de l'agencement.
  7. Agencement selon la revendication 2 et la revendication 5 ou 6,
    caractérisé en ce que l'au moins une première courroie de pression (12) est guidée à travers le mécanisme d'encollage (27) ou est guidée en passant devant le mécanisme d'encollage (27).
  8. Agencement selon l'une des revendications précédentes,
    caractérisé en ce qu'au moins un élément chauffant pour bande de contrecollage (23), de préférence incurvé, est disposé de telle sorte qu'il chauffe la bande de contrecollage (4) dans le guide pour bande de contrecollage (35).
  9. Agencement selon la revendication 8, caractérisé en ce que la bande de contrecollage (4) est guidée dans le guide pour bande de contrecollage (35) de telle sorte qu'une face extérieure de la bande de contrecollage (4) est opposée à l'au moins un élément chauffant pour bande de contrecollage (23).
  10. Agencement selon l'une des revendications précédentes,
    caractérisé en ce que l'agencement est conçu de telle sorte que la bande de contrecollage (4) peut être guidée au choix à travers le guide pour bande de contrecollage (35) ou l'au moins une première fente de pression (19) vers l'au moins une seconde fente de pression (26).
  11. Agencement selon l'une des revendications précédentes,
    caractérisé en ce qu'une bande ondulée de la bande de carton ondulé (3) contrecollée sur une face et devant être reliée par collage à la bande de contrecollage (4) est guidée de telle sorte et/ou l'au moins un élément chauffant (17) est disposé de telle sorte que la bande ondulée est tournée vers l'au moins un élément chauffant (17) dans l'au moins une première fente de pression (19).
  12. Agencement selon l'une des revendications précédentes, caractérisé par au moins un appareil de réglage de pression de contact (11, 14, 15, 24, 25) permettant de régler une pression de contact de la bande de contrecollage (4) et de l'au moins une bande de carton ondulé (2, 3) contrecollée sur une face l'une contre l'autre.
  13. Installation de carton ondulé pour la fabrication de carton ondulé, comprenant
    a) un agencement de distribution de bande de contrecollage permettant de distribuer une bande de contrecollage (4),
    b) au moins un dispositif de fabrication permettant de fabriquer une bande de carton ondulé (2, 3) respective contrecollée sur une face,
    c) un agencement (6) selon l'une des revendications précédentes disposé en aval de l'agencement de distribution de bande de contrecollage et de l'au moins un dispositif de fabrication permettant de fabriquer une bande de carton ondulé (2, 3) respective contrecollée sur une face, et
    d) de préférence un appareil d'application de colle disposé en amont de l'agencement (6) et permettant d'appliquer de la colle au moins sur une bande ondulée de la bande de carton ondulé (3) contrecollée sur une face et devant être reliée par collage à la bande de contrecollage (4).
  14. Installation de carton ondulé selon la revendication 13, caractérisée par un dispositif de direction (41), en particulier actionnable, disposé en amont de l'agencement (6) et permettant de guider la bande de contrecollage (4) vers l'au moins une première fente de pression (19) ou vers le guide pour bande de contrecollage (35) et de préférence au moins un dispositif de séparation (38) disposé en amont du dispositif de direction (41) et permettant de séparer la bande de contrecollage (4) pour un changement de la bande de contrecollage (4) entre l'au moins une première fente de pression (19) et le guide pour bande de contrecollage (35).
  15. Procédé pour la fabrication d'une bande de carton ondulé (1) contrecollée sur les deux faces à partir d'une bande de contrecollage (4) et d'au moins une bande de carton ondulé (2, 3) contrecollée sur une face, comprenant les étapes consistant à
    - guider l'au moins une bande de carton ondulé (2, 3) contrecollée sur une face au moyen d'au moins une première fente de pression (19),
    - chauffer au moins une bande de carton ondulé (2, 3) contrecollée sur une face dans l'au moins une première fente de pression (19) au moyen d'au moins un élément chauffant (17), et
    - presser l'une contre l'autre l'au moins une première bande de carton ondulé (2, 3) contrecollée sur une face et la bande de contrecollage (4) au moyen d'au moins une seconde fente de pression (26), laquelle est disposée en aval de l'au moins une première fente de pression (19),
    - dans lequel la bande de contrecollage (4) peut être guidée vers l'au moins une seconde fente de pression (26) au moyen d'un guide pour bande de contrecollage (35) disposé à distance de l'au moins une première fente de pression (19),
    caractérisé par
    - au moins une seconde courroie de pression (15) pouvant être entraînée, laquelle délimite spatialement, au moins dans certaines zones, le guide pour bande de contrecollage (35) et permet une sollicitation par pression de la bande de contrecollage (4) dans le guide pour bande de contrecollage (35).
EP22725390.3A 2021-04-28 2022-04-22 Dispositif de fabrication d'une feuille de carton ondulé contrecollée sur les deux faces Active EP4330032B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021204254.6A DE102021204254A1 (de) 2021-04-28 2021-04-28 Anordnung zur Herstellung einer beidseitig kaschierten Wellpappebahn
PCT/EP2022/060707 WO2022229022A2 (fr) 2021-04-28 2022-04-22 Dispositif de fabrication d'une feuille de carton ondulé contrecollée sur les deux faces

Publications (2)

Publication Number Publication Date
EP4330032A2 EP4330032A2 (fr) 2024-03-06
EP4330032B1 true EP4330032B1 (fr) 2024-10-16

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EP22725390.3A Active EP4330032B1 (fr) 2021-04-28 2022-04-22 Dispositif de fabrication d'une feuille de carton ondulé contrecollée sur les deux faces

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Country Link
US (1) US12447710B2 (fr)
EP (1) EP4330032B1 (fr)
CN (1) CN117222519A (fr)
DE (1) DE102021204254A1 (fr)
ES (1) ES2997836T3 (fr)
PL (1) PL4330032T3 (fr)
WO (1) WO2022229022A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1146771A (en) * 1914-06-26 1915-07-13 Paper Working Machines Company Machine for manufacturing double-faced corrugated board.
DE3818658A1 (de) * 1988-06-01 1989-12-07 Peters W Maschf Beklebemaschine in einer wellpappenanlage
JP2786620B2 (ja) 1996-08-23 1998-08-13 三菱重工業株式会社 段ボールシートの製造装置
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DE102018207446A1 (de) * 2018-05-15 2019-11-21 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Wellpappeanlage

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PL4330032T3 (pl) 2024-12-16
US20240208175A1 (en) 2024-06-27
WO2022229022A2 (fr) 2022-11-03
WO2022229022A3 (fr) 2022-12-22
US12447710B2 (en) 2025-10-21
DE102021204254A1 (de) 2022-11-03
ES2997836T3 (en) 2025-02-18
EP4330032A2 (fr) 2024-03-06
CN117222519A (zh) 2023-12-12

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