EP4330032A2 - Anordnung zur herstellung einer beidseitig kaschierten wellpappebahn - Google Patents
Anordnung zur herstellung einer beidseitig kaschierten wellpappebahnInfo
- Publication number
- EP4330032A2 EP4330032A2 EP22725390.3A EP22725390A EP4330032A2 EP 4330032 A2 EP4330032 A2 EP 4330032A2 EP 22725390 A EP22725390 A EP 22725390A EP 4330032 A2 EP4330032 A2 EP 4330032A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- web
- laminated
- corrugated
- laminating
- corrugated cardboard
- 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.)
- Pending
Links
- 238000010030 laminating Methods 0.000 claims abstract description 130
- 238000010438 heat treatment Methods 0.000 claims abstract description 61
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 238000004026 adhesive bonding Methods 0.000 claims description 79
- 239000003292 glue Substances 0.000 claims description 70
- 238000004519 manufacturing process Methods 0.000 claims description 44
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 230000001419 dependent effect Effects 0.000 description 25
- 239000000463 material Substances 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000004744 fabric Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- B31F1/2845—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
-
- 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
Definitions
- the invention relates to an arrangement for producing a corrugated cardboard web lined on both sides from a laminating web and at least one corrugated cardboard web lined on one side. Furthermore, the invention is directed to a corrugated board plant for the production of corrugated board with such an arrangement for the production of a web of corrugated board laminated on both sides. The invention is also directed to a method for producing a corrugated cardboard web laminated on both sides.
- Corrugated cardboard plants are generally known from the state of the art through prior public use.
- corrugated webs are generally glued to cover webs to form corrugated cardboard webs laminated on one side.
- a web of corrugated cardboard lined on one side is then glued to a web of lining to form a web of corrugated cardboard laminated on both sides or on both sides.
- glue is used for this, the adhesive properties of which can be activated by supplying heat.
- the transport of heat to the different bonding points to activate the glue is extremely difficult, since the sheets, especially when combined, are extremely good thermal insulators.
- the webs are often heated inhomogeneously, which can lead to damage or loss of quality.
- the object of the invention is to provide an improved arrangement for producing a web of corrugated board that is laminated on both sides.
- the arrangement for producing a double-faced web of corrugated board should be able to overcome the problems of the prior art and produce an extremely high-quality, double-lined web of corrugated board.
- a corresponding corrugated board plant and a corresponding method for producing a corrugated board lined on both sides are also to be created.
- the core of the invention lies in a laminating sheet guide that is able to lead the laminating sheet at a distance from the at least one first pressure gap to a ren, which in turn is capable of having at least one corrugated board lined on one side and if necessary, to also lead the laminating sheet together with this.
- the laminating sheet can be guided in the laminating sheet guide, for example at a distance or spatially remote from the at least one heating element to the at least one second pressure gap. It is thus possible, for example, to prevent the laminating sheet from heating up undesirably, in particular excessively, and being damaged, for example due to increased friction caused thereby. This is particularly problematic when the laminating sheet is printed.
- the laminating track guide thus preferably forms a kind of bypass.
- the at least one web of corrugated cardboard laminated on one side and the laminating web are transported, in particular continuously, in a transport or conveying direction during operation of the arrangement for producing a web of corrugated cardboard laminated on both sides.
- the at least one second pressure gap is arranged downstream with respect to the conveying direction of the single-faced corrugated cardboard web to the at least one first pressure gap.
- upstream refers in particular to the conveying direction of the at least one web of corrugated board laminated on one side, the liner web or the web of corrugated board laminated on both sides.
- the at least one first pressure gap and/or at least one second pressure gap advantageously runs at least partially, preferably at least for the most part, horizontally. It is expedient if the at least one first pressure gap and the at least one second pressure gap extend at least partially, preferably at least for the most part, parallel or in a common plane.
- the at least one heating element is preferably designed as a heat exchanger. It can be heated electrically, with thermal oil, hot water and/or steam.
- the at least one heating element is preferably able to transmit heat by radiation and/or convection. It heats the single-faced corrugated cardboard web running adjacent there in the at least one first pressure gap, preferably directly. It is advantageous if it is arranged adjacent to the at least one first pressure gap. It is conveniently 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 web of corrugated cardboard laminated on one side and the laminating web or several webs of corrugated cardboard laminated on one side, can be pressed against one another.
- a web can be pressed against the at least one heating element, for example.
- the laminating web guide comprises at least one infeed device on the input side, such as an infeed roller, a curved infeed element and/or an infeed brush device.
- the at least one inlet device is preferably displaceable and/or heatable.
- the web of corrugated board laminated on both sides is endless. For example, it has three layers, five layers or seven layers.
- the arrangement for producing a web of corrugated board laminated on both sides is preferably designed as a heating and pulling arrangement or heating and pressing arrangement.
- the laminating sheet dispensing arrangement is designed as a laminating sheet splicing arrangement for dispensing an endless laminating sheet.
- the at least one production device for producing a respective web of corrugated cardboard laminated on one side has a corrugating device for corrugating a web of material to be corrugated to form a corrugated web.
- the at least one production device for producing a respective web of corrugated cardboard laminated on one side has a gluing device for gluing the corrugated web.
- the at least one first pressure belt according to dependent claim 2 is preferably endless. It is expedient if the at least one first pressure belt forms an upper pressure belt in the arrangement for producing a web of corrugated cardboard laminated on both sides. Conveniently is this 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 pressure belt.
- the at least one first pressure belt leads in particular to the webs being pressed against one another in the at least one first pressure gap and preferably to the webs being pressed in the at least one first pressure gap in the direction of the at least one heating element. It also enables the at least one web of corrugated board laminated on one side to be conveyed. Alternatively or additionally, the at least one first pressure gap is spatially delimited by at least one first pressure roller or at least one first pressure module.
- the at least one first pressure belt is designed as a fabric belt, felt belt or screen belt.
- the at least one first pressure belt is coated in order to increase adhesion between the adjacent web of single-faced corrugated cardboard and the at least one first pressure belt.
- the arrangement according to dependent claim 3 is particularly functionally reliable and leads to a particularly high-quality web of corrugated cardboard 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 obsolete.
- the at least one second pressure belt according to dependent claim 4 is preferably endless. It is expedient if this forms a lower pressure belt in the arrangement for producing a web of corrugated board 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 rotated to drive the at least one second pressure belt.
- the at least one second pressure belt in particular allows pressure to be applied to the laminating sheet in the laminating sheet guide, for example in the direction of at least one laminating sheet heating element. It also enables promotion of the laminating sheet.
- the laminating web guide is spatially limited by at least one guide roller or at least one guide module.
- the arrangement according to dependent claim 5 is particularly functionally reliable and allows the production of a high-quality corrugated board lined on both sides. A synchronization mation between the laminating sheet guide and the second pressure gap or corresponding facilities is thus obsolete.
- the at least one second pressure belt is designed as a fabric belt, felt belt or screen belt. It is preferably open-pored or permeable at least in regions, for example in order to enable heat transport in the at least one first pressure gap, at least to the laminating web, if running there, or preferably at least to the adjacent running single-sided corrugated board 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 liner web.
- the at least one second pressure belt is heated or can be heated, for example.
- 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 the center axis. It is expedient if a pressing force of the at least one second pressure belt on the laminating web in the laminating web guide and/or in the at least one second pressure gap can be adjusted by actuating the at least one tension changing device.
- the pressing force is preferably dependent on the required heating of the laminating sheet or the corrugated cardboard sheet 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 laminating web guide.
- the gluing unit according to dependent claim 7 is arranged after the at least one first pressure gap and upstream of the at least one second pressure gap. It is expedient if the gluing unit has a glue bath. Conveniently, the gluing unit has a glue applicator roller for applying the glue from the glue bath to the single-sided corrugated cardboard web to be glued to the laminating web, in particular to its corrugated web. A glue metering roller is preferably assigned to the glue application roller in order to form a uniform film of glue on the glue application roller. It is expedient if the gluing unit has at least one pressure roller for pressing the single-sided corrugated cardboard web to be glued against the glue applicator roller.
- the gluing unit according to dependent claim 8 is designed and/or arranged in such a way that gluing of the web of corrugated cardboard laminated on one side to be glued takes place from below. Free peaks of the corrugation of the one-sidedly laminated web of corrugated cardboard are directed downwards there.
- the gluing unit can be displaced 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 displaced accordingly.
- At least one drive, motor or the like is preferably present for this purpose.
- the gluing unit according to dependent claim 10 is in an inactive position, for example to the side or next to the arrangement or the webs. It is thus shifted horizontally in a transverse direction of the arrangement/corrugator or perpendicularly to a longitudinal direction of the arrangement/corrugator. It is then shifted horizontally in a transverse direction of the webs.
- the gluing unit can be moved out of the arrangement/corrugator horizontally to the side. At least one drive, motor or the like is advantageously provided for this purpose.
- the at least one first pressure belt is guided through the gluing unit, preferably with its lower belt. In particular, this is passed between at least one pressure roller and glue applicator roller of the gluing unit.
- the at least one pressure belt is guided past the gluing unit, in particular at the top. It can thus be effectively prevented that the at least one first pressure belt is provided with glue, in particular over a large area, above all if the at least one web of corrugated cardboard laminated on one side is not guided by the gluing unit. Furthermore, a particularly simple cleaning, maintenance or servicing of the gluing unit is possible in this way. It is expedient if the gluing unit, in particular in its entirety, is laterally out of Order for the production of a corrugated board lined on both sides can be pulled out. It is advantageous if the gluing unit is in a raised or active position during a printing operation. Favorably, the gluing unit is in a lowered or inactive position during normal operation or during normal production. Reversed positions are alternatively possible.
- the configuration according to dependent claim 13 allows the liner to be heated in the liner guide. It is expedient if the at least one laminating sheet heating element can be heated electrically, with thermal oil, hot water and/or steam. It preferably delimits the guidance of the laminating web at least in certain areas, favorably upwards. Beneficially, the laminating web is at least partially directly adjacent to the at least one laminating web heating element.
- the at least one laminating sheet heating element according to dependent claim 14 preferably has a curved laminating sheet contact surface for a corresponding guidance or contact of the laminating sheet.
- the conveyed laminating sheet can be deflected accordingly.
- the configuration according to dependent claim 15 allows, for example, an adaptation to the respective laminating sheet.
- heating of the laminating sheet can preferably be influenced, for example via an effective contact surface.
- the at least one laminating sheet heating element can be vertically displaced at least in certain areas and/or pivoted about a respective horizontal pivot axis.
- the at least one laminating sheet element is immovable and/or flat.
- the configuration according to dependent claim 16 prevents in particular damage to the outside of the laminating sheet by the at least one laminating sheet heating element, which is particularly advantageous when the outside is printed. It is expedient if the at least one laminating sheet heating element heats the laminating sheet from above or is arranged there above it.
- the arrangement according to dependent claim 17 allows the laminating sheet to be guided in two different ways. Due to the laminating track guide, the laminating track is at least tens past a first pressure gap, so that the laminating sheet guide forms a kind of bypass guide. However, if desired, the laminating web can also be guided through the at least one first pressure gap together with at least one corrugated cardboard web laminated on one side.
- the respective path of the liner is preferably selected depending on the configuration of the liner, in particular depending on the printing on the same. The laminating sheet is protected and can be guided gently in the laminating sheet guide.
- the at least one corrugated web steam supply device is also delimited by the at least one first pressure gap or is arranged adjacent to it.
- the at least one corrugated web steam supply device is preferably capable of remoistening the respective corrugated web of at least one adjacent single-sided corrugated web web there. It is expedient if the at least one corrugated web steam feed device heats the respective single-sided corrugated web.
- the at least one glue-steam supply device is preferably arranged upstream of the at least one second pressure gap and advantageously arranged adjacent to it.
- the at least one glue-steam supply device is able to pre-penetrate the glue of the web of corrugated board laminated on one side to be glued to the web of lining.
- the configuration according to dependent claim 20 allows, for example, a particularly high and easily adjustable heat transfer between the at least one heating element and the one-sidedly laminated corrugated cardboard web to be glued to the laminating web, provided that 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. For example, it is arranged upstream of the at least one second pressure gap and is 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 contact pressure gap and/or (co-)forms it.
- the gluing connection between the at least two single-sided corrugated cardboard webs and the gluing connection between one of the single-sided corrugated cardboard webs and the laminating web is offset or divided in time and/or spatially.
- the gluing connections begin one after the other and preferably proceed one after the other.
- the laminating sheet is only fed in at a later point in time, in order to bring about a time delay in its glued connection to a corrugated board sheet laminated on one side. It is expedient if the gluing connection between the at least two one-sidedly laminated webs of corrugated board is completed in the at least one first pressure gap when the at least one first pressure gap is left.
- the gluing connection between the at least two webs of corrugated cardboard laminated on one side is only completed in the at least one second pressure gap.
- the gluing connection between the at least two corrugated cardboard webs laminated on one side is completed or completed in the at least one first pressure gap when the at least one first pressure gap is exited.
- This can be influenced, for example, by the at least one heating element or its heat output.
- the switch device according to dependent claim 25 can preferably be adjusted or switched over between different switch positions.
- it preferably has at least one displaceable, in particular pivotable, for example plate-like switch element.
- the laminating sheet In a first position of the switch device, the laminating sheet can be guided, for example, to the min least one first pressure gap, while in a second position of the switch device the laminating sheet can be guided to the laminating sheet guide.
- the switching device is 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.
- the switch device can also be the subject of an independent invention. It is then provided for an arrangement for producing a web of corrugated board or a corrugated board lined on both sides.
- the at least one separating device according to dependent claim 26 is preferably capable of completely severing the laminating 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. Al Alternatively, the at least one separating device comprises, for example, at least one knife element which, for example, can be driven in rotation or displaced in a traversing manner. 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 that is laminated on both sides and is then arranged on the input side in relation to this.
- FIG. 1 shows a corrugated board plant according to the invention with an arrangement for producing a web of corrugated board laminated on both sides, the laminating web being guided through a first pressure gap
- FIG. 2 shows the arrangement shown in FIG. 1 for the production of a web of corrugated board laminated on both sides, the laminating web being guided there by a laminating web guide, in contrast to FIG.
- FIGS. 1, 2A shows a detail from FIGS. 1, 2, showing a gluing unit in a lateral parking position
- FIG. 3 shows an arrangement according to the invention for the production of a web of corrugated cardboard laminated on both sides according to a second embodiment
- FIG. 4 shows the arrangement shown in FIG. 3 for the production of a web of corrugated board laminated on both sides, the laminating web being guided there by a laminating web guide, in contrast to FIG. 3, and
- FIG 5 is a view that illustrates an arrangement according to the invention for the production of a cutter web that is laminated on both sides and a separating and switching arrangement
- a corrugated board plant is capable of producing an endless five-ply corrugated board web 1 lined on both sides or corresponding five-layer corrugated board sheets (not shown) lined on both sides.
- the corrugator includes a first manufacturing device for manufacturing a first web of corrugated board 2 that is laminated on one side upstream endless first web.
- the first production device for producing a first web of corrugated cardboard 2 laminated on one side comprises a rotatably mounted first corrugated roller and a rotatably mounted second corrugated roller to produce an endless first corrugated web from the endless first web of material.
- the corrugating rollers form a first roller nip for guiding through and corrugating the endless first web of material.
- the first production device for producing a first web of corrugated board 2 laminated on one side has a first gluing device which comprises a first glue metering roller, a first glue container and a first glue applicator roller.
- the first glue applicator roller forms a first glue gap with the first corrugated roller for guiding through and gluing the endless first corrugated web.
- the glue that is in the first glue container is applied to tips of the corrugation of the endless first corrugated web via the first glue applicator roller.
- the first glue dosing roller rests against the first glue applicator roller and serves to form an even layer of glue on the first glue applicator roller.
- the endless first cover web is then joined together with the endless first corrugated web provided with glue from the first glue container in the first manufacturing device for producing a first corrugated board web 2 laminated on one side.
- the first manufacturing device for producing a first corrugated board web 2 laminated on one side has a first pressing module, which is advantageously designed as a pressing belt module. It is arranged above the first corrugating roll.
- the first pressure module has two first deflection rollers and an endless first pressure belt that is guided around the first two deflection rollers.
- the first corrugated roller partially engages in a space present between the first deflection rollers from below, as a result of which the first pressure belt is deflected in the opposite direction by the first corrugated roller.
- the first pressure belt presses against the endless first cover web, which in turn is pressed against the glued first corrugated web lying against the first corrugated roller.
- the corrugated board plant also includes a second production device for producing a second web of corrugated board 3 which is laminated on one side.
- the second production device for producing a one-side-laminated second web of corrugated cardboard 3 is advantageously designed like the first production device for producing a one-side-laminated first web of corrugated cardboard 2 .
- a second cover web splicing device for providing an endless second cover web and a second material web splicing device for providing an endless second web of material are arranged upstream of the second production device for producing a second corrugated cardboard web 3 laminated on one side.
- the second production device comprises a rotatably mounted third corrugating roller and a rotatably mounted fourth corrugating roller to produce an endless second corrugated web from the endless second web of material.
- the corrugated rollers form a second roller nip for feeding through and corrugating the endless second web of material.
- the second manufacturing device for producing a one-sided laminated second corrugated board web 3 has a second gluing device a second glue metering roller, a second glue container and a second glue applicator roller.
- the second glue applicator roller forms a second glue gap with the third corrugated roller for guiding through and gluing the endless second corrugated web.
- the glue in the second glue container is applied to the tips of the second continuous corrugated web via the second glue applicator roller.
- the second glue dosing roller rests against the second glue applicator roller and is used to form an even layer of glue on the second glue applicator roller.
- the endless second cover sheet is then joined together with the endless second corrugated sheet provided with glue from the second glue container in the second manufacturing device for producing a second sheet of corrugated board 3 laminated on one side.
- the second manufacturing device for producing a second web of corrugated cardboard laminated on one side 3 has a second pressing module.
- the second pressing module is advantageously designed as a pressing belt module. It is located above the third corrugating roll.
- the second pressure module has two second deflection rollers and an endless second pressure belt that is guided around the two second deflection rollers.
- the third corrugated roller engages in some areas below in a space present between the two second deflection rollers, as a result of which the second pressure belt is deflected by the third corrugated roller.
- the second pressure belt presses against the endless second cover sheet, which in turn is pressed against the glued endless second corrugated sheet lying against the third corrugating roller.
- the corrugator has a liner splicing device for providing an endless liner 4.
- the endless liner 4 is single-ply and smooth. It can already be printed or can be printed. It can also be or remain unprinted.
- the gluing unit has a first gluing roller, which is partially immersed in a first glue bath and is capable of gluing the first corrugated web of the first corrugated board web 2 laminated on one side. Furthermore, the gluing unit comprises a second gluing roller, which is partially immersed in a second glue bath and is able to apply glue to the second corrugated web of the second corrugated board web 3 laminated on one side.
- the gluing unit is preceded by a preheating device which is capable of heating the first web of corrugated board 2 clad on one side and the second web of corrugated board 3 clad on one side, as well as the laminating web 4 .
- the preheating device has corresponding heating rollers around which the respective web 2, 3 or 4 is wrapped.
- the first manufacturing device for manufacturing a first web of corrugated board 2 laminated on one side, the first cover web splicing device, the first material web splicing device, the second manufacturing device for manufacturing a single-sided, second web of corrugated board 3, the second cover web splicing device, the second material web splicing device, the Laminating web splicing device and the gluing unit as well as the preheating device, if present, are assigned the reference number 5 according to FIG.
- the corrugator also has an arrangement 6 for producing a corrugated cardboard sheet 1 laminated on both sides, which is downstream of the gluing unit.
- the arrangement 6 for producing a corrugated cardboard web 1 lined on both sides the first corrugated cardboard web 2 laminated on one side and the second corrugated cardboard web 3 laminated on one side and the laminating 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.
- first guide rollers 11 On the first frame 8 and second frame 9, a plurality of upper or first guide rollers 11 are rotatably mounted, the central axes of which are parallel to one another and horizontal and perpendicular to the Conveying direction 7 run. At least one upper guide roller 11 can be driven in rotation by a motor. To the upper guide rollers 11 is an endless upper or first pressure belt 12 leads ge, which is continuously driven in a first circumferential direction 13.
- first frame 8 and second frame 9 are a plurality of lower and second guide rollers, respectively.
- At least one lower guide roller 14 can be driven in rotation by a motor.
- Around the lower guide rollers 14 is an endless lower or second pressure belt
- the first frame 8 carries a plurality of 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 level.
- the first frame 8 also carries corrugated web steam feed devices 18, which are arranged downstream in the conveying direction 7 and extend in the heating plane or adjacent below the water. They are able to emit steam upwards.
- the corrugated web steam feed devices 18 are preferably arranged between heating elements 17 .
- a lower belt or an underside of the upper pressure belt 11 and an upper belt or an upper side of the lower pressure belt 15 together form a first pressure gap 19 .
- the lower chord or the underside of the upper pressure chord 11 and the upper chord or the upper side of the lower pressure chord 15 run parallel to one another and horizontally there. There they have a common circumferential direction 13 or 16 and extend adjacent one above the other.
- the lower chord or the underside of the upper pressure chord 11 delimits the first pressure gap 19 at the top, while the upper chord or the upper side of the lower pressure chord 15 delimits the first pressure gap 19 at the bottom.
- the first pressure gap 19 has a first inlet 19a and a first outlet 19b.
- the first pressure gap 19 is preceded by a further inlet heating element 21, which is arranged on the first frame 8, in particular displaceable, in particular pivotable ver, and carries a corrugated web steam feed device 22 at the top.
- the corrugated sheet steam supply device 22 is formed like the corrugated sheet steam feeders 18 and capable of ejecting steam upward.
- the upper pressure belt 12 is assigned first or upper pressure shoes 20, which are spaced apart from one another in the conveying direction 7 and press the lower belt of the upper pressure belt 12 in the direction of the adjacent heating element 17 or downwards .
- a plurality of laminating web heating elements 23 are arranged on the first frame 8 below the first pressure gap 19, which are arranged downstream of one another in the conveying direction 7 and are each pivotable.
- the laminating sheet heating elements 23 extend between adjacent lower guide rollers 14.
- An inlet laminating sheet heating element 23 is flat, while the downstream laminating sheet heating elements 23 are each curved.
- a plurality of second or upper pressure shoes 24 are arranged on the second frame 9, which extend horizontally and spaced apart from one another in the conveying direction 7 and, according to a preferred embodiment, can be displaced vertically to adjust the contact pressure.
- Associated with the upper pressure shoes 24 are lower counter-pressure shoes 25 which are also arranged on the second frame 9 .
- the lower chord or the underside of the upper pressure belt 12 and the upper chord or the top of the lower pressure belt 15 run between the upper pressure shoes 24 and lower counter pressure shoes 25. They extend there adjacent and parallel to one another and horizontally to form a second At the pressure gap 26. You are pressed towards one another by the upper pressure shoes 24 and the lower counter pressure shoes 25.
- the lower chord of the upper pressure chord 12 and the upper chord of the lower pressure chord 15 have a common circumferential direction 13 or 16 there and extend adjacent one above the other.
- the second pressure gap 26 has a second input run 26a and a second outlet 26b.
- the laminating web heating elements 23 extend (essentially) to the second pressure gap 26.
- the lower guide roller 14 arranged on the inlet side in relation to the laminating web guide 35 is wrapped around by the lower pressure belt 15 over a peripheral range between 150° and 250° and can be horizontally displaced 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 .
- the gluing unit 27 is arranged on the first frame 8 and/or the second frame 9 .
- the gluing unit 27 has a glue applicator roller 29 which is immersed in a glue bath 28 and to which a glue metering roller 30 of the gluing unit 27 rests on the front side.
- the gluing unit 27 also has a pressure roller 31 which is arranged above the glue applicator roller 29 and adjacent to it.
- the glue application roller 29 and the glue metering roller 30 and the pressure roller 31 extend parallel to one another and horizontally. They run perpendicular to the conveying direction 7.
- the glue applicator roller 29 and the pressure roller 31 can each be displaced vertically between an active gluing position and an inactive parking position.
- glue-steam supply device 32 which is designed like the corrugated web-steam supply device 18 or 22 and is able to eject steam upwards.
- the corrugated cardboard plant also has a longitudinal cutting/creasing device which is arranged downstream of the arrangement 6 for producing a corrugated cardboard web 1 laminated on both sides.
- Slitting units of the slitting/creasing device are able to cut the corrugated cardboard web 1 laminated on both sides in the conveying direction 7 to form partial corrugated cardboard webs.
- Crease units of the longitudinal cutter/crease device are capable of scoring corrugated cardboard web 1 laminated on both sides in order to simplify subsequent folding.
- the corrugated board system includes a switch for dividing the partial webs of corrugated board produced into different levels.
- the corrugator also has a cross-cutting device with partial
- Cross-cutting devices to completely cut through the partial webs of corrugated cardboard to form Wellpappebö gene in a transverse or widthwise direction.
- the sheets of corrugated cardboard can be stacked in the respective stacking trays of the corrugated cardboard installation.
- the slitting/creasing device, the diverter and the cross cutting device as well as the stacking places are assigned the reference numeral 36 as shown in FIG.
- a short cross cutter may also be present.
- the gluing unit uses its first gluing roller to apply glue to the first corrugated web of the first web of corrugated cardboard 2 laminated on one side and with its second gluing roller to the second corrugated web of the second web of corrugated cardboard that is laminated on one side.
- the one-sidedly laminated endless first web of corrugated cardboard 2 and the one-sidedly laminated endless second web of corrugated cardboard 3 and the endless laminating web 4 are supplied to the arrangement 6 for producing a corrugated cardboard web 1 laminated on both sides.
- the pressure belts 12, 15 are each driven in their circumferential direction 13 and 16, respectively.
- the first web of corrugated board 2 which has been laminated on one side and has been glued on the bottom is guided upstream to the first pressure gap 19 above the inlet heating element 21 .
- the corrugated web steam supply device 22 ejects steam from the bottom upwards, so that it hits the first corrugated web of the first corrugated board web 2 laminated on one side or the glue located there. This also causes the glue to heat up.
- the first corrugated web of the first web of corrugated cardboard 2 laminated on one side is located there below the first cover web of the first web of corrugated cardboard 2 laminated on one side.
- the first web of corrugated cardboard 2 laminated on one side enters the first pressure gap 19 on the inlet side, i. Fig.
- first corrugated sheet of the single-faced first web of corrugated board 2 is located below the first cover sheet of the single-faced first web of corrugated board 2.
- the second web of corrugated board 3, glued on one side and laminated on the bottom, is guided along the bottom of the inlet heating element 21 and is heated by it from above.
- the second corrugated web of the second web of corrugated board 3 laminated on one side is located there below the second cover web of the second web of corrugated board 3 laminated on one side furthermore, the second corrugated web of the single-sided second corrugated board web 3 below the second cover sheet of the single-sided second corrugated board web 3 is located.
- the laminating web 4 runs around two deflection rollers 33 , 34 which are arranged one above the other and which are arranged above an inlet or inlet 35a of the laminating web guide 35 .
- the laminating web 4 is guided upwards. It is guided over the inlet heating element 17 to the first pressing gap 19 and is heated in the process. It then occurs on the inlet side, ie via the first inlet 19a, into the first pressure gap 19 under the webs of corrugated cardboard 2, 3 laminated on one side.
- the one-sided laminated first web of corrugated cardboard 2 and the one-sided laminated second corrugated cardboard web 3 and the laminating web 4 are pressed together in the first pressure gap 19 and bonded to form the corrugated cardboard web 1 laminated on both sides.
- the se are promoted in the conveying direction 7 through the first pressure gap 19 .
- the laminating web 4 is heated by the heating elements 17 directly from below.
- the webs of corrugated board 2, 3 laminated on one side are also heated by the heating elements 17.
- the liner guide 35 remains unused.
- the corrugated sheet steam feed devices 18 and laminating sheet heating elements 23 are out of operation or inactive.
- the corrugated cardboard web 1 laminated on both sides then exits the first pressure gap 19 on the output side or outlet side, i.e. via the first outlet 19b, and is guided past the gluing unit 27 like the upper pressure belt 12, for example.
- the corrugated cardboard web 1 laminated on both sides and the bottom belt of the upper pressure belt 12 are guided upwards, for example in the area of the gluing unit 27 .
- the gluing unit 27 is inactive here. For example, it is in a lower parking position (not shown) or a lateral parking position (cf. Fig. 2A).
- the web of corrugated board 1 laminated on both sides and the lower belt of the upper pressure belt 12 can thus also remain undeflected in the area of the gluing unit 27 and continue to run at the height of the first pressure gap 19 .
- the gluing unit 27 is moved out horizontally into its lateral parking position from the arrangement 6 for the production of a corrugated board web 1 laminated on both sides or the corrugated board plant.
- the glue vapor supply device 32 is inactive.
- the corrugated cardboard web 1 laminated on both sides then enters the second pressure gap 26 on the input side or inlet side, i.e. via the second inlet 26a, where the first corrugated cardboard web 2 laminated on one side, the second corrugated cardboard web 3 laminated on one side and the liner web 4 preferably continue together be pressed. They are conveyed through the second pressure gap 26 in the conveying direction 7 .
- the glue of the corrugated cardboard web 1 laminated on both sides hardens further, for example in the second pressure gap 26 .
- the web of corrugated board 1 laminated on both sides then leaves the second pressing gap 26 on the output side.
- a second operation such as printing operation, is described below with reference to FIG.
- the gluing unit With its first gluing roller, the gluing unit applies glue to the first corrugated web of the first web of corrugated cardboard 2 laminated on one side.
- the second gluing roller is inactive, so that the second corrugated web of the second web of corrugated cardboard that is laminated on one side remains unglued.
- the one-sidedly laminated first web of corrugated cardboard 2 and the one-sidedly laminated second web of corrugated cardboard 3 are introduced on the input side into the first pressure gap 19, where they are pressed against one another and glued to one another.
- the pressure belts 12, 15 are each driven in their circumferential direction 13 and 16, respectively.
- the first web of corrugated board 2 which has been laminated on one side and has been glued on the bottom is guided upstream to the first pressure gap 19 above the inlet heating element 21 .
- the corrugated steam supply device 22 ejects steam from the bottom up, so that this on the first Corrugated web of the one-sided laminated first web of corrugated board 2 or the glue located there meets. This also causes the glue to heat up.
- the first corrugated web of the first web of corrugated board 2 laminated on one side is located there below the first cover web of the first web of corrugated board laminated on one side.
- the first web of corrugated board 2 laminated on one side enters the first pressure gap 19 on the inlet side or inlet side, i.e. via the first inlet 19a, where the first corrugated web of the first web of corrugated board laminated on one side is located below the first cover web of the first web of corrugated board 2 laminated on one side.
- the second corrugated web of the second web of corrugated board 3 laminated on one side is located there below the second cover web of the second web of corrugated board 3 laminated on one side furthermore, the second corrugated web of the single-sided second corrugated board web 3 below the second cover sheet of the single-sided second corrugated board web 3 is located.
- the corrugated web steam supply devices 18 are active and eject steam from below onto the second corrugated board web 3 laminated on one side or the second corrugated web.
- the one-sided laminated first web of corrugated cardboard 2 and the one-sided laminated second corrugated cardboard web 3 are pressed together in the first pressure gap 19 and glued together ver. These are conveyed in the conveying direction 7 through the first pressure gap 19 .
- the corrugated cardboard webs 2, 3 laminated on one side that are glued together then exit the first pressure gap 19 on the outlet side or outlet side, i.e. via the outlet 19b, and are guided through the gluing unit 27, preferably without being deflected, in comparison with the operation according to FIG , while the lower belt of the upper pressing belt 12 is guided past the gluing unit 27 at the top.
- the gluing unit 27 is active and applies glue from below with its glue application roller 29 to the second single-sided corrugated web 3 or the second corrugated web.
- the pressure roller 31 presses from above the second single-sided corrugated cardboard web 3 or the second corrugated web against the glue applicator roller 29.
- the gluing unit 27 is, for example, in its upper gluing position.
- the glue-steam supply device 32 is active and ejects steam from below onto the glue on the second corrugated web of the second single-faced corrugated board web 3 .
- the laminating sheet 4 is guided through the laminating sheet guide 35, where it is heated by the active laminating sheet heating elements 23 from above or from its inside.
- the inside of the laminating web 4 faces away from the 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 laminating sheet 4 at least in some areas against the laminating sheet heating elements 23 and ensures that the laminating sheet 4 is conveyed through the laminating sheet guide 35.
- the laminating sheet 4 is guided past the gluing unit 27 at the bottom.
- the single-sided corrugated cardboard webs 2, 3 and the laminating web 4 then enter the second pressure 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 second corrugated cardboard web 3 and the laminating web 4 are pressed together to form the corrugated cardboard web 1 laminated on both sides.
- the one-sided laminated second web of corrugated board 3 and the laminating web 4 who the glued together.
- the one-sided laminated webs of corrugated cardboard 2, 3 and the Ka Schierbahn 4 are conveyed through the second pressure gap 26 in the conveying direction 7.
- the web of corrugated cardboard 1 laminated on both sides then leaves the second pressure gap 26 on the output side or outlet side, ie via the second outlet 26b.
- the arrangement 6 for the production of a corrugated cardboard web laminated on both sides 1 can also only be used with exactly one single corrugated cardboard web 2 or 3, respectively.
- the web of corrugated board 1 laminated on both sides then has three layers. The operating modes explained are then also possible.
- FIGS. 1 A second embodiment of the arrangement 6 for producing a corrugated cardboard web 1 laminated on both sides is described below with reference to FIGS.
- the lower belt of the upper pressure belt 12 runs through the gluing unit 27. It is guided between the glue applicator roller 29 and the pressure roller 31.
- the laminating sheet 4 can be guided through the first nip 19 or the laminating sheet guide 35 to the second nip 26.
- a separating and switch arrangement 37 of the corrugated cardboard plant is described below with reference to FIG.
- the arrangement 6 for the production of a double-sided corrugated web 1 is preceded by the separating and switch arrangement 37, which in turn is associated with the laminating web 4 and is able to act on it.
- the separating and switch arrangement 37 comprises a transverse separating device 38 which in turn has two rotationally drivable transverse separating rollers 39 which are arranged one above the other and have knives 40 which extend radially outwards.
- the knives 40 are able to cooperate and produce a cut in the liner 4 that extends the full width of the liner 4 .
- the transverse separating rollers 39 are rotated accordingly.
- the separation and switching arrangement 37 also has a switch device 41, the cross-separating device 38 is downstream.
- 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, switch position and an upper switch position.
- the pivot axis 43 extends in the transverse direction of the arrangement 6 for the production of a corrugated cardboard web 1 laminated on both sides.
- the liner 4 When the switch element 42 is in the lower switch position, the liner 4 can be guided to the liner guide 35 . In the upper switch position of the switch element 42, the Ka Schierbahn 4 to the first pressure gap 19 can be guided. The lining sheet 4 is guided along the top of the Wei element 42 .
- the transverse cutting device 38 is actuated so that the laminating sheet 4 is completely severed in its transverse direction.
- the leading web section of the laminating web 4 is challenged via the previously used first pressure gap 19 from the corrugator or the arrangement 6 for the production of a corrugated web 1 laminated on both sides.
- the switch element 42 is then pivoted from its upper switch position into its lower switch position.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
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 (de) | 2021-04-28 | 2022-04-22 | Anordnung zur herstellung einer beidseitig kaschierten wellpappebahn |
Publications (1)
Publication Number | Publication Date |
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EP4330032A2 true EP4330032A2 (de) | 2024-03-06 |
Family
ID=81846262
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22725390.3A Pending EP4330032A2 (de) | 2021-04-28 | 2022-04-22 | Anordnung zur herstellung einer beidseitig kaschierten wellpappebahn |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP4330032A2 (de) |
CN (1) | CN117222519A (de) |
DE (1) | DE102021204254A1 (de) |
WO (1) | WO2022229022A2 (de) |
Family Cites Families (9)
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 |
US5902502A (en) * | 1996-10-16 | 1999-05-11 | Interfic, Inc. | Corrugated paperboard manufacturing apparatus and related methods |
WO1998018614A1 (en) | 1996-10-30 | 1998-05-07 | Best Carton, Ltd. | Production of corrugated board structures |
US6048429A (en) | 1998-08-11 | 2000-04-11 | Marquip, Inc. | Production of double wall corrugated web |
SG11201407960QA (en) * | 2012-06-15 | 2014-12-30 | Corcel Ip Ltd | Improvements in and relating to paperboard manufacture |
EP2805810B1 (de) | 2013-05-23 | 2016-03-16 | BHS Corrugated Maschinen-und Anlagenbau GmbH | Anlage zur Herstellung einer einseitig kaschierten Wellpappebahn |
DE102015218333A1 (de) | 2015-09-24 | 2017-03-30 | Bhs Corrugated Maschinen- Und Anlagenbau Gmbh | Wellpappeanlage |
-
2021
- 2021-04-28 DE DE102021204254.6A patent/DE102021204254A1/de active Pending
-
2022
- 2022-04-22 CN CN202280032044.5A patent/CN117222519A/zh active Pending
- 2022-04-22 WO PCT/EP2022/060707 patent/WO2022229022A2/de active Application Filing
- 2022-04-22 EP EP22725390.3A patent/EP4330032A2/de active Pending
Also Published As
Publication number | Publication date |
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CN117222519A (zh) | 2023-12-12 |
DE102021204254A1 (de) | 2022-11-03 |
WO2022229022A3 (de) | 2022-12-22 |
WO2022229022A2 (de) | 2022-11-03 |
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