EP2682260B1 - Verfahren und Vorrichtung zur Herstellung von Wellpappe - Google Patents
Verfahren und Vorrichtung zur Herstellung von Wellpappe Download PDFInfo
- Publication number
- EP2682260B1 EP2682260B1 EP12004994.5A EP12004994A EP2682260B1 EP 2682260 B1 EP2682260 B1 EP 2682260B1 EP 12004994 A EP12004994 A EP 12004994A EP 2682260 B1 EP2682260 B1 EP 2682260B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- corrugated cardboard
- web
- webs
- flow
- flow corrugated
- 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.)
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- 239000011111 cardboard Substances 0.000 title claims description 122
- 238000000034 method Methods 0.000 title claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 51
- 239000000123 paper Substances 0.000 claims description 27
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 230000006978 adaptation Effects 0.000 claims description 11
- 230000002441 reversible effect Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 description 27
- 239000003292 glue Substances 0.000 description 16
- 238000001035 drying Methods 0.000 description 11
- 239000010410 layer Substances 0.000 description 8
- 239000011087 paperboard Substances 0.000 description 8
- 239000011096 corrugated fiberboard Substances 0.000 description 6
- 238000000926 separation method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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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
-
- 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
- B31F1/242—Making webs in which the channel of each corrugation is transverse to the web feed the corrugations being obliquely inclined to the web feed
-
- 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
- B31F1/2813—Making corrugated cardboard of composite structure, e.g. comprising two or more corrugated layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2831—Control
- B31F1/2836—Guiding, e.g. edge alignment; Tensioning
-
- 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
- B31F1/2872—Spraying devices, e.g. for moistening purposes; Lubricating devices
-
- 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
-
- 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
- B31F1/36—Moistening and heating webs to facilitate mechanical deformation and drying deformed webs
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
- Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
- Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact
Definitions
- the invention relates to an apparatus and a method for the production of corrugated board products which are e.g. serve as packaging material.
- Corrugated board products are made from individual paper webs, with a corrugated product comprising smooth and corrugated paper layers joined together.
- Corrugated board products are manufactured in a continuous process.
- Out DE 1 561 510 discloses a method for the continuous production of stiff corrugated cardboard, in which two webs of corrugated cardboard with oblique corrugations are glued to each other.
- the webs with oblique corrugations are made by passing one paperboard web each between two coupled corrugation cylinders, the corrugation cylinders being made with helical corrugations.
- a paperboard web guided by the coupled corrugation cylinders is brought to a smooth path with respect to the running direction of the corrugating machine at an angle ⁇ which lies in a horizontal plane and adhered thereto. This creates a composite web.
- two composite webs are connected together so that their corrugated sides are glued together without interposition.
- a disadvantage of the method according to DE 1 561 510 is that the device required for this purpose is designed only for corrugated without an intermediate layer between the composite webs.
- Other types of corrugated board, in particular those with an intermediate layer, can only be produced after a complicated conversion of the device used for this purpose.
- such devices have a considerable width and take up a lot of space.
- FR 1 212 042 A discloses a machine for producing corrugated cardboard in which two single-ply corrugated board webs are fed and glued together directly to a final product. In this case, either a single-flow product or a double-flow product can be obtained.
- the invention has for its object to provide a way to produce corrugated products in a material-saving and cost-effective manner. Furthermore, the object of the invention is to improve the achievable quality of the produced corrugated cardboard products.
- a machine structure is sought, which saves space and at the same time ensures easy and quick conversion. Easy and quick to change makes it possible to switch between different types of corrugated board products with minimal machine downtime.
- the object is achieved by a device having the features according to claim 1 and a method having the features according to claim 14.
- the device according to the invention for the production of corrugated cardboard products comprises a first single-sided machine and a second single-sided machine which are each designed to produce a single-flow corrugated cardboard web. Furthermore, the device is provided with a merge, which is designed to connect the single-flow corrugated cardboard webs with each other.
- the merge has a convergence region in which the corrugation profile of the first and second single-flow corrugated webs are mutually adjusted. The mutual adjustment takes place via a merging of the single-ply corrugated board webs, wherein the top and bottom points of the single-ply corrugated board webs respectively engage with each other.
- corrugated webs of the single-ply corrugated board webs each form substantially identical profiles.
- the mutual adaptation of the wave profile allows to produce in a simple and reliable way single-flow corrugated board webs whose wave profiles differ only minimally from each other.
- the small deviation makes it possible, when merging the single-walled corrugated cardboard webs, to connect them geometrically with one another exactly.
- Precisely placed contact points between the tops of the single-ply corrugated board webs can be generated in this way.
- Precisely placed contact points between corrugated webs allow material-saving corrugated board architectures to be produced without additional interlayer between the corrugated webs.
- the method according to the invention is the same for deviations of the parallelism from flooded corrugated cardboard webs.
- the device according to the invention is designed such that the advantages described above can be achieved in a continuous production process.
- the device according to the invention may comprise a first single-sided machine, which is equipped with a first corrugating roll, which has a corrugation.
- the corrugation runs parallel to the axis of rotation of the first corrugating roll.
- the first single-sided machine has a counterpart to the first corrugating roller.
- the device can advantageously be equipped with a second single-sided machine which has a second corrugating roller with a second counterpart.
- the second corrugating roll has a corrugation which runs parallel to the axis of rotation of the second corrugating roll.
- a parallel to the rotation axis aligned corrugation of a corrugating roll allows to provide a paper web with a wave profile in a gap between a corrugating roll and a counterpart to the corrugating roll.
- the wave profile is also aligned parallel to the axis of rotation of the corrugating roll.
- the gap between a parallel corrugated corrugating roll and its counterpart is insensitive to distortions of the paper web and reliably generates a substantially uniform wave profile when passing through a supplied paper web.
- the convergence region between a first and a second deflection roller can be formed in the device according to the invention.
- the first deflection roller defines the beginning of the convergence region.
- an outlet may be formed, at which a separation of the first of the second single-walled corrugated board web takes place.
- the departure in the area of the second deflection roller defines the end of the convergence area.
- the device according to the invention can be equipped in the region of the merger with at least one steam supply.
- the steam supply serves to moisten at least one cover sheet of a single-flow web of corrugated cardboard.
- Steam supply can be easily arranged before entering the convergence area, and allow by wetting an increase in the ductility of the cover sheet or corrugated web of a single-flow.
- Corrugated cardboard sheet An increased deformability includes increased extensibility and elasticity to the state in which the single-ply corrugated board reaches the junction.
- An increased deformability of at least one single-walled corrugated board web improves the accuracy of the geometrical adaptation of the corrugated profiles in the convergence zone.
- the accuracy of the achievable geometric accuracy of the corrugated webs improves the achievable quality of the corrugated board products to be produced.
- the single-flow corrugated cardboard webs are held in the convergence region by means of at least one bridge brake in a mechanical stress state.
- the state of stress increases the effect of mutual geometric adjustment of the single-ply corrugated board webs.
- the wave profiles are aligned and aligned along the entire width of the web. Deviations in the parallelism or uniformity of the wavelengths of the wave profiles caused by inaccuracies of roll geometries, roll orientations, paper web windings or web courses are compensated.
- the device according to the invention can be provided with at least one heating plate, which is arranged for heating at least one single-flow corrugated cardboard web.
- Heating a single-walled corrugated web reduces its ductility and makes it possible to maintain the mutual adaptation of the corrugated profiles achieved in the convergence zone.
- shrinkage of the flooded corrugated cardboard webs arises as a result of the heating. Reducing ductility and shrinkage will ensure that the convergence achieved in the convergence area is maintained until the corrugated paperboard webs are joined together. This ensures a high quality of the corrugated cardboard products to be produced.
- the merger is equipped with a convergence region comprising a heating cylinder.
- Heating cylinders can be temperature-controlled with high accuracy, so that the intensity of a drying process of the single-flow corrugated cardboard webs can be precisely adjusted. Drying of the single-ply corrugated board webs reduces their ductility and makes the mutual matching of the corrugated profiles in the convergence area stable.
- a high-diameter heating cylinder can be used, so that the flooded corrugated cardboard webs are guided along a jacket surface of the heating cylinder with little deformation and thus with little mechanical stress. As a result, distortions or damage to the single-ply corrugated board webs are avoided, so that a high geometric accuracy of the wave profiles is maintained.
- the heating cylinder may be provided with a roller carrier, in which a first and a second deflection roller are rotatably received.
- the roller carrier is pivotable about the center of the heating cylinder.
- the first and the second deflection roller can each form a gap with the lateral surface of the heating cylinder. Such a gap serves to pass through the first and second single-flow corrugated cardboard webs.
- the pivotable roller carrier makes it possible, by deflecting by a pivoting angle, to change the region in which the first and second single-walled corrugated webs of material are in contact with the heating cylinder.
- the convergence region in which the mutual adaptation of the corrugated profiles of the first and second single-walled corrugated fiberboard web takes place, is prolonged.
- the longer the convergence area the higher the drying effect of the heating cylinder.
- the higher the production speed is set the lower the drying effect of the heating cylinder.
- Prolonging the convergence range allows, for example, an increase in the production rate with the same drying effect.
- increasing the temperature of the heating cylinder allows an increased production speed. A temperature increase is accompanied by increased energy consumption. Setting the length of the convergence range allows the parameters production speed and energy consumption to be freely selected within a wide range of values. This extends the range of use of the device according to the invention
- the device according to the invention can have a combination in which a divergence region is formed.
- the single-web corrugated webs are separated by means of at least one guide roller.
- the use of a guide roller provides an easy way to separate the two single-walled corrugated board webs from each other and thereby supply a separate further processing.
- the at least one deflection roller may be designed to be movable perpendicular to a travel path of one of the single-flow corrugated cardboard webs.
- a deflection roller movable perpendicularly to a path of a single-flow web of corrugated board provides a means of controlling the separation process.
- the angle is determined under which the two single-walled corrugated board webs are separated.
- a deflection roller which is movable perpendicularly to a travel path makes it possible to lengthen or shorten this travel path.
- the movement of the deflection roller can be precisely controlled in a simple manner, so that a running path difference between the single-flow corrugated cardboard webs is generated.
- the path difference causes the flooded Corrugated webs at the end of Divergenz Scheme along their paths to each other have an offset.
- the offset of the single-ply corrugated board webs can be adjusted with an accuracy in the range of millimeters. An exact adjustment of the offset makes it possible to process single-flow corrugated board webs with different corrugated profiles.
- the length of a first path of the first single-walled corrugated web of the length of a second path of the second single-walled corrugated web deviates by half a wavelength of a profile of the first single-walled corrugated board web.
- Differently long travel paths of the first and second single-flow corrugated board webs allow the two single-web corrugated webs to run geometrically exactly towards one another at the end of the divergence range.
- An offset of one-half wavelength of the corrugated profile ensures that the previously engaged single-ply corrugated paperboard webs converge so that head-points of the corrugated webs of corrugated board profiles contact each other when bonded to a corrugated paperboard product.
- two head points of a corrugated web form a contact point.
- This ensures that single-ply corrugated board webs are precisely connected in the area of the head points. This makes it possible to realize corrugated board architectures that fully exploit the material properties of the layers used.
- the device according to the invention can be designed with a single-sided machine which has a turning device.
- the turning device is designed to reverse the orientation of the first or second single-flow web of corrugated cardboard. By reversing the orientation, it is determined whether the cover sheet or corrugated web faces a single-ply corrugated board web of the other single-ply corrugated board web.
- Turning devices provide simple and robust technical possibilities for adapting the device according to the invention to the requirements of different corrugated board architectures. The range of use and the cost efficiency of the device according to the invention are thereby increased.
- the invention further relates to a method for the production of corrugated cardboard products, comprising the following steps: In a first step, a first single-flow corrugated cardboard web is produced from a first cover sheet and a paper web by means of a first single-sided machine. In a second step, a second single-ply corrugated cardboard web is produced from a second cover web and a paper web by means of a second single-sided machine. In a third step, a Transport of the first and second single-web corrugated web in a merge. In a fourth step, the first and second single-web corrugated webs are joined to form a corrugated board product.
- wave profiles of the first and the second single-walled corrugated cardboard web are matched to one another in a convergence region.
- An adaptation of wave profiles provide a way to improve the achievable manufacturing accuracy of the produced corrugated product.
- the uniform wave profiles are applied over the entire web width. Deviations in the parallelism or uniformity of the wavelengths of the wave profiles caused by inaccuracies of roll geometries, roll orientations, paper web windings or web courses are compensated. In particular, this ensures that opposite areas of wave profiles are geometrically identical and allow a uniform corrugated board architecture. Uniform and precise corrugated board architectures make it possible to produce efficient corrugated board architectures in a simple and material-saving manner in the sense of lightweight construction.
- At least one of the single-flow corrugated board webs can be moistened by means of at least one supply of steam before it enters the convergence zone. Moistening a single-walled corrugated web increases its deformability and ensures a complete geometric adaptation of the wave profiles of the single-walled corrugated board web.
- the deformability includes a ductility and elasticity of the single-ply corrugated cardboard webs. The overall strength achievable in the corrugated cardboard product to be produced is increased overall.
- the first and second single-flow corrugated paperboard web can be brought together in the convergence region in such a way that head points of the corrugated profile of the first single-walled corrugated fiberboard web come into contact with root points of the corrugated profile of the second single-walled corrugated paperboard web.
- the mutual adaptation of the wave profiles takes place under a minimal overall deformation.
- such a process step ensures that the mutual adaptation of the wave profiles is complete. This improves the achievable accuracy of the corrugated cardboard products to be produced.
- the first and / or second single-flow corrugated cardboard web can be dried in the convergence region with at least one heating plate. Drying of the single-ply corrugated web reduces its ductility, causes a shrinkage of the single-ply corrugated board webs and makes the geometrical adaptation of the corrugated profiles resistant. As a result, further deformations or distortions in the further manufacturing process are prevented, so that the geometric accuracy of the desired corrugated board architecture is increased.
- the first and second single-flow corrugated cardboard web are conveyed at a departure of a second deflection roller in a Divergenz Symposium.
- the first and the second single-web corrugated web are separated from each other by means of at least one deflection roller.
- a separation of the two single-ply corrugated board webs makes it possible to supply these each a separate processing.
- the use of a deflection roller is a simple and reliable means to control the separation process.
- the first corrugated board web can cover a first path of travel in the region of divergence, and the second one-web corrugated board web can travel a second path.
- the length of the paths can be further adjusted by the at least one deflection roller, wherein the at least one deflection roller can be moved perpendicular to one of the paths.
- a slidable deflection roller makes it possible to determine the angle at which the two single-ply corrugated board webs are separated from each other.
- the length of the travel path can be set exactly in a simple manner by means of a deflection roller displaceable perpendicularly to a travel path. In this way, a path difference between the first and second path can be generated selectively with an accuracy in the range of millimeters. This ensures an exact processing of the single-flow corrugated cardboard webs to a corrugated cardboard product.
- the length of the first travel path can deviate from the length of the second travel path by half a wavelength of the wave profile of the first or second single-walled corrugated cardboard web.
- a run-path difference of one-half wavelength of the wave profile of the first or second single-ply corrugated web allows the first and second single-ply corrugated webs to be at the end of the divergence range lead to each other that each head of the wave profiles of the single-walled corrugated web form a common point of contact.
- This makes it possible to realize corrugated cardboard profiles in which it is possible to dispense with a middle cover layer, which serves the wave profiles as a fastening plane.
- a divergence range pathway can be readily manufactured with high precision, thus providing an economical and robust solution for aligning single pass corrugated fiberboard webs.
- the first and second single-flow corrugated paperboard web can be guided towards one another at the end of the divergence region by means of at least one alignment roller.
- This provides a low cost, low maintenance solution for precisely feeding single-ply corrugated webs to one another.
- the first and second single-flow corrugated cardboard webs in the convergence region can be guided in gaps between a heating cylinder and in each case a first and a second deflection roller.
- the first and second deflection rollers are rotatably mounted on a roller carrier, which is pivotable about the center of the heating cylinder.
- the convergence region corresponds to a section on the lateral surface of the heating cylinder in which the single-flow corrugated cardboard webs abut the heating cylinder.
- a heating cylinder can be produced with a high diameter, so that the deflection of the single-walled corrugated board webs can be carried out at low mechanical stresses.
- a heating cylinder can be precisely controlled temperature, so that a drying effect of the heating cylinder can be precisely adjusted.
- the length of the convergence region can be increased by a deflection of the roller carrier by a pivot angle.
- the convergence region begins in the region of the first diverting pulley, where the single-flow corrugated fiberboard webs engage with the heating cylinder in engagement with each other.
- the convergence area ends where the first and second single-web corrugated webs separate.
- the head points of the second single-walled corrugated board web are positioned opposite the base points of the first single-web corrugated board.
- a deflection of the roller carrier by a pivoting angle increases the length of the convergence region substantially around a portion on the periphery of the heating cylinder, which is enclosed by the pivoting angle.
- the size of the swivel angle can be adjusted precisely in a simple manner. This allows the To continuously adjust the length of the convergence zone during the manufacturing process and thereby counteract fluctuating parameters in the manufacturing process. As a result, the achievable quality of the corrugated cardboard products to be produced is maintained at a consistently high level of quality.
- At least one of the single-ply corrugated board webs can be coated with adhesive in the area of the joining by means of at least one glue application roller.
- a brushing with adhesive ensured in a simple and cost-effective way, a way by which the single-flow web of corrugated cardboard can be connected to each other building.
- the orientation of at least one single-walled corrugated board web with a turning device can be reversed.
- the use of a single-flow web of corrugated board makes it possible to adapt the method according to the invention to the requirements of different corrugated board architectures. This ensures high versatility and cost-efficiency of the method according to the invention.
- FIG. 1 1 schematically shows a construction of the device 10 according to the invention, which comprises a first single-sided machine 20 and a second single-sided machine 30.
- the device 10 according to the invention is in a first configuration.
- the two single-sided machines 20, 30 each comprise a counterpart 21 ', 31' which is in contact with a corrugating roller 21, 31, respectively.
- the counterparts 2 ', 31' and the corrugating rollers 21, 31 each form a gap into which a first or second paper web 26, 36 is drawn.
- On the first and second paper web 26, 36 is impressed by the corrugating roller 21, 31, a wave profile.
- the corrugating rollers 21, 31 have on their lateral surface parallel corrugation, so that the corrugated profile is also aligned in parallel.
- the first or second single-sided machine 20, 30 on a Anpressgurt 22, 32 which is in contact with the corrugating roller 21, 31.
- a first pressure belt 22 is guided taut by belt guide rollers 61, 62, 63 and forms with the lateral surface of the first corrugating roller 21 a gap.
- the first paper web 26 and the first cover web 25 provided with a corrugated profile are pulled in.
- the first cover sheet 25 and the first provided with a wave profile paper web 26 are connected to a single-flow web of corrugated cardboard 28.
- the gap formed between the first pressure belt 22 and the first corrugating roller 21 allows the webs 25, 26 to apply a high pressure pulse, producing a low pressing force.
- the first single-sided machine is equipped with a first glue applicator 40.
- the first glue applicator 40 provides adhesive which produces an adhesive bond between the first cover sheet 25 and the corrugated paper web 26.
- a second paper web 36 is drawn into a gap between the counterpart 31 'and the second corrugating roller 31, the second paper web 36 being provided with a wave profile.
- the second corrugating roller 31 has on its lateral surface parallel corrugation, so that the corrugated profile is also aligned in parallel.
- a second pressure belt 32 which is guided taut by belt guide rollers 64, 65, 66, forms a gap with the second corrugating roller 31.
- a second cover sheet 35 is further drawn.
- the paper webs 35, 36 are connected in the nip with a high pressure pulse at low pressing force and form a second single-flow web of corrugated cardboard 38 at the exit from the second single-sided machine 30.
- the second single-sided machine 30 is provided with a second glue applicator 41, which moves in a direction of travel 43 is mobile.
- the second glue application unit 42 is moved along the travel direction 43, it is not in contact with the second corrugating roller 31.
- the second single-sided machine 30 has a third glue application unit 42, which is in contact with the second corrugating roller 31.
- the third glue application unit 42 provides adhesive which produces an adhesive bond between the second cover sheet 35 and the second paper web 36 provided with a corrugated profile.
- the first single-sided machine 20 has a web conveying direction 24, in which the first single-web corrugated cardboard web 28 exits from the first single-sided machine 20.
- the second single-sided machine 30 has a web conveying direction 34, in which the second single-web corrugated cardboard web 38 exits from the second single-sided machine 30.
- the web conveying directions 24, 34 of the first and second single-sided machine 20, 30 run in opposite directions.
- the first and second single-flow corrugated cardboard webs 28, 38 run in an identical running direction 60 of the device 10 according to the invention.
- the first and second single-web corrugated cardboard webs 28, 38 are aligned such that their corrugated webs 27, 37 are opposite one another , Furthermore, the cover sheets 25, 35 lie on the outwardly facing sides of the single-ply corrugated cardboard webs 28, 38.
- the first and the second single-ply corrugated cardboard webs 28, 38 are transported on to a merge 80.
- the arrangement of the first and second single-walled corrugated board webs 28, 38 to one another hereby realizes the construction principle of a double-sided corrugated cardboard architecture of four layers.
- FIG. 2 schematically a second configuration of the device 10 according to the invention is shown.
- the device 10 comprises a first and a second single-sided machine 20, 30, which are arranged one behind the other in the running direction 60 of the device.
- the first and the second single-sided machine each have a first or second conveying direction 24, 34, which are aligned in the same direction.
- the first and second single-sided machines 20, 30 each comprise first and second corrugating rollers 21, 31 and their respective counterparts 21 ', 31'.
- the first corrugating roller 21 and the first Counterpart 21 ' form on their lateral surfaces a gap into which a first paper web 26 is fed.
- a wave profile is impressed on the first paper web 26 by the first corrugating roller 21.
- the first single-sided machine 20 is further equipped with a first glue applicator 40, which is arranged on a lateral surface of the first corrugating roller.
- the first glue applicator 40 provides an edge of the first corrugating roller 21 facing away from the first side of the first paper web 26 with an adhesive.
- the adhesive applied to the first paper web 26 by the first glue applicator 40 ensures an adhesive connection with the first cover web 25.
- the first cover web 25 and the first paper web 26 are pressed and glued together in a gap between the first corrugating roller 21 and a pressure belt 22.
- the pressure belt 22 is guided by belt guide rollers 61, 62, 63 taut.
- the first paper web 26 forms after leaving the gap between the pressure belt 22 and the first corrugating roller 21, a corrugated web 27 of a single-flow web of corrugated cardboard.
- a second paper web 36 is drawn into a nip between the second corrugating roll 31 and its counterpart 31 and provided with a wave profile.
- the second single-sided machine 30 is provided with a second and a third glue applicator 41, 42.
- the second glue applicator 41 which is attached to the lateral surface of the second corrugating roller 31 and sweeps the second paper web 36 on one of the lateral surface of the second corrugating roller 31 opposite side with adhesive.
- the third glue applicator 42 of the second single-sided machine 30 is positioned offset along a direction of travel 43 laterally to the lateral surface of the second corrugating roller 31.
- the third glue application unit 42 is movable along a travel direction 43 and can be moved into contact with the lateral surface of the second corrugating roller 31 for conversion of the second single-sided machine 30, which is accompanied by a reversal of the second web conveying direction 34.
- a second cover sheet 35 is retracted.
- the adhesive provided by the second glue applicator 41 second paper web is retracted together with the second cover sheet 35 in a gap between the second Anpressgurt 32 and the second corrugating roller 31.
- the second cover sheet 35 and the second paper web 36 are glued together and pressed.
- the second paper web 36 which is provided by means of the second corrugating roll 31 with a wave profile, forms a corrugated web 37 in the second single-walled corrugated cardboard web 38.
- the first and second single-flow corrugated cardboard webs 28, 38 are aligned with each other such that the corrugated web 27 faces the first single-ply corrugated cardboard web 28 of the second cover web 35 of the second single-web corrugated cardboard web 35.
- the first and second single-flow corrugated webs 28, 38 are transported in a common running direction 60 of the device according to the invention to a merge 80.
- the device according to the invention is provided with a feed roll 58, which provides an additional cover sheet 57 during operation.
- the additional cover sheet 57 is brought to the second single-flow web of corrugated cardboard 37 so that it faces the corrugated web 37 of the second single-walled corrugated board web 37.
- the arrangement of the first and second single-flow corrugated web 28, 38 and the additional cover web 57 corresponds to a conventional five-layer corrugated board architecture.
- a combination 80 is shown, in which the first single-walled corrugated cardboard web 28 are adapted to the second single-walled corrugated cardboard web 38 and these are joined together.
- the merging 80 is equipped with a first and a second steam supply 84, 85.
- the first steam supply 84 is arranged such that the first cover sheet 25 of the first single-ply corrugated cardboard web 28 is supplied with water vapor.
- the second water vapor supply 85 is arranged such that the second cover sheet 35 of the second single-ply corrugated cardboard web 38 is supplied with water vapor.
- the application of water vapor through the first and second steam feed 84, 85 leads to a plasticizing of the first and second single-flow webs of corrugated cardboard 28, 38.
- the first and second single-web corrugated webs 28, 38 are then guided together around a lateral surface of a deflection roller 81.
- the first and second single-ply corrugated fiberboard webs contact each other such that head points 72 of the first corrugated web 27 are engaged with bases of the second corrugated web 37.
- the application of steam through the steam feeders 84, 85 increases the ductility of the corrugated webs 27, 37 of the first and second single-ply corrugated fiberboard webs 28, 38.
- a radiator 86 is mounted, the heat to the mutually engaged first and second single-flow corrugated cardboard web 28, 38 outputs.
- the heating of the two single-ply corrugated cardboard webs 28, 38 reduces their deformability.
- the matched shape of the corrugated webs 27, 37 is fixed by the heating by means of the radiator 86.
- first and second single-flow corrugated webs 28, 38 revolve around the second diverting pulley and pass through the outlet 50 of the diverting pulley.
- the first and second single-flow corrugated cardboard web 28, 38 are separated.
- the first and second single-ply corrugated webs pass separately through a divergence region 95.
- the divergence region is substantially diamond-shaped, with the first and second single-ply corrugated webs passing through a deflection roll 88, 90, respectively.
- the first single-ply corrugated web 28 is directed over the first deflecting roller 88, which is fixedly mounted.
- the position of the first deflection roller 88 determines the length of a first path 51, which extends from the outlet 50 of the guide roller 82 to the end of the divergence region 95.
- the first travel path 51 passes completely through the divergence region 95.
- the divergence region 95 is equipped with a second heater 87.
- the second heating element 87 allows the second single-walled corrugated board web to be further dried by further heat radiation.
- the second single-flow corrugated cardboard web 38 is guided via a second deflection roller 89, which is movable in a direction transverse to the extent of the divergence region.
- the position of the second deflection roller 89 in this case determines the length of a second path 52.
- the second path 52 passes through the divergence region 95 completely.
- the position of the second deflection roller 89 is set such that the second path 52 differs by half a wavelength of the second corrugated web 37 from the first path 51.
- the head points 72 of the first and second single-flow corrugated cardboard web 28, 38 are opposite.
- the opposing headers 72 form contact points 71 behind the divergence region 95.
- the contact points 71 ensure a head-to-head position of the first and second single-ply corrugated webs to each other.
- the first and second single-ply corrugated webs joined together form a corrugated cardboard product 90 which does not have a continuous central paper web.
- the merge 80 at the end of the divergence region 95 has additional processing devices 97, 98 for further processing the corrugated product 90.
- the processing devices 97, 98 may be formed as plates, heating plates, belts or rollers.
- FIG. 4 an alternative embodiment of the device according to the invention is shown.
- the first and second single-flow corrugated cardboard webs 28, 38 are arranged such that the top and bottom points of the single-ply corrugated cardboard webs 28, 38 each face.
- the single-flow corrugated cardboard webs 28, 38 are pressed in the region of the heating cylinder 94 on its lateral surface, and come into contact with each other such that the head points of the second single-walled corrugated board web 38 touch the bases of the first single-walled corrugated board web 28.
- the first and / or second single-flow corrugated cardboard web 38 have previously been subjected to steam by means of steam feeders 84, 85.
- the first and second single-flow corrugated cardboard webs 28, 38 are additionally guided by deflection rollers 81, 82.
- the first and second single-flow corrugated webs pass through the gaps formed between the heating cylinder 94 and the first and second deflecting rollers 81, 82, respectively.
- the first and second deflection rollers 81, 82 are received on a roller carrier 46, which is pivotable about the center of the heating cylinder 94.
- the position of the first deflection roller 81 defines the beginning of a convergence region 45, in which the first and second single-flow corrugated cardboard webs 28, 38 are engaged with each other.
- the first and second single-flow corrugated webs 28, 38 are guided along a lateral surface of the heating cylinder 94 and are thereby dried.
- the drying reduces the deformability of the first or second single-ply corrugated cardboard web 28, 38.
- the matched wave profiles of the corrugated webs 27, 37 of the single-ply corrugated cardboard web 28, 38 are fixed by the heat supply of the heating cylinder 94.
- the length of the convergence region 45 defines to what extent the first and second single-flow corrugated cardboard webs 28, 38 are dried.
- FIG. 5 is a heating cylinder according to FIG. 4 shown in a deflected state.
- the roller carrier 46 with the guide rollers 81, 84 deflected by a pivot angle 96.
- the first and second single-flow corrugated cardboard webs 28, 38 come into contact in the region of the first deflection roller 81.
- the top and bottom points of the first and second single-flow corrugated cardboard web 28, 38 touch.
- the convergence region 45 includes an angular range defined by the position of the first deflecting roller 81 and an edge of the roller support 46 and a circular arc portion defined by the pivotal angle 96 on the circumference of the heating cylinder 95 is.
- the convergence region 45 can be extended arbitrarily
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
- Paper (AREA)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL12004994T PL2682260T3 (pl) | 2012-07-05 | 2012-07-05 | Sposób i urządzenie do wytwarzania tektury falistej |
EP12004994.5A EP2682260B1 (de) | 2012-07-05 | 2012-07-05 | Verfahren und Vorrichtung zur Herstellung von Wellpappe |
ES12004994.5T ES2468940T3 (es) | 2012-07-05 | 2012-07-05 | Procedimiento y dispositivo para la fabricación de cartón ondulado |
DK12004994.5T DK2682260T3 (da) | 2012-07-05 | 2012-07-05 | Fremgangsmåde og indretning til fremstilling af bølgepap |
PCT/EP2013/001987 WO2014005719A2 (de) | 2012-07-05 | 2013-07-05 | Verfahren und vorrichtung zur herstellung von wellpappe |
US14/412,290 US9597853B2 (en) | 2012-07-05 | 2013-07-05 | Method and device for producing corrugated cardboard |
CN201380035866.XA CN104487238B (zh) | 2012-07-05 | 2013-07-05 | 生产瓦楞纸板的方法和装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12004994.5A EP2682260B1 (de) | 2012-07-05 | 2012-07-05 | Verfahren und Vorrichtung zur Herstellung von Wellpappe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2682260A1 EP2682260A1 (de) | 2014-01-08 |
EP2682260B1 true EP2682260B1 (de) | 2014-03-12 |
Family
ID=46581687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12004994.5A Active EP2682260B1 (de) | 2012-07-05 | 2012-07-05 | Verfahren und Vorrichtung zur Herstellung von Wellpappe |
Country Status (7)
Country | Link |
---|---|
US (1) | US9597853B2 (zh) |
EP (1) | EP2682260B1 (zh) |
CN (1) | CN104487238B (zh) |
DK (1) | DK2682260T3 (zh) |
ES (1) | ES2468940T3 (zh) |
PL (1) | PL2682260T3 (zh) |
WO (1) | WO2014005719A2 (zh) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106671489A (zh) * | 2016-12-09 | 2017-05-17 | 苏州庆丰包装材料有限公司 | 一种单瓦楞两层纸板的生产设备 |
DE102018207446A1 (de) * | 2018-05-15 | 2019-11-21 | Bhs Corrugated Maschinen- Und Anlagenbau Gmbh | Wellpappeanlage |
CN108724815A (zh) * | 2018-06-28 | 2018-11-02 | 东台市天时利包装有限公司 | 一种用于纸箱生产制造的单面瓦楞机 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1212042A (fr) * | 1958-01-28 | 1960-03-21 | Habermacher Et Caillieret Les | Procédé de fabrication d'un carton ondulé dit <à double face>, et d'un carton ondulé dit <double-double>, installation pour sa mise en oeuvre et produits obtenus |
FR1494318A (fr) | 1966-07-29 | 1967-09-08 | Creusot Forges Ateliers | Procédé et machine pour la fabrication continue de carton ondulé rigide, à ondulations croisées |
DE2302449C3 (de) * | 1973-01-18 | 1980-06-04 | Bhs-Bayerische Berg-, Huetten- Und Salzwerke Ag, 8000 Muenchen | Heizvorrichtung fur eine bewegte Materialbahn, insbesondere Vorheizer fur eine Papier- bzw Pappebahn in Wellpappenanlagen |
US5693167A (en) * | 1990-05-15 | 1997-12-02 | Molins Plc | Corrugated board manufacture |
FR2719521B1 (fr) * | 1994-05-06 | 1996-07-19 | Otor Sa | Machine et procédé de fabrication d'une feuille de carton ondulé simple face par encollage sous traction. |
DE19506779A1 (de) | 1995-02-27 | 1996-08-29 | Bhs Corr Masch & Anlagenbau | Verfahren und Vorrichtung zum Beheizen einer bewegten Bahn, insbesondere Wellpappenbahn |
US5659976A (en) * | 1995-05-01 | 1997-08-26 | Inland Paperboard And Packaging, Inc. | Automated fabrication of corrugated paper products |
JP2010241079A (ja) * | 2009-04-09 | 2010-10-28 | Mitsubishi Heavy Ind Ltd | 段ボールシート加熱方法及び装置 |
-
2012
- 2012-07-05 ES ES12004994.5T patent/ES2468940T3/es active Active
- 2012-07-05 DK DK12004994.5T patent/DK2682260T3/da active
- 2012-07-05 PL PL12004994T patent/PL2682260T3/pl unknown
- 2012-07-05 EP EP12004994.5A patent/EP2682260B1/de active Active
-
2013
- 2013-07-05 US US14/412,290 patent/US9597853B2/en active Active
- 2013-07-05 WO PCT/EP2013/001987 patent/WO2014005719A2/de active Application Filing
- 2013-07-05 CN CN201380035866.XA patent/CN104487238B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2682260A1 (de) | 2014-01-08 |
DK2682260T3 (da) | 2014-06-23 |
US9597853B2 (en) | 2017-03-21 |
WO2014005719A3 (de) | 2014-03-20 |
US20150174851A1 (en) | 2015-06-25 |
WO2014005719A2 (de) | 2014-01-09 |
ES2468940T3 (es) | 2014-06-17 |
PL2682260T3 (pl) | 2014-09-30 |
CN104487238B (zh) | 2016-12-14 |
CN104487238A (zh) | 2015-04-01 |
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