WO2024149792A1 - Onduleuse - Google Patents

Onduleuse Download PDF

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Publication number
WO2024149792A1
WO2024149792A1 PCT/EP2024/050462 EP2024050462W WO2024149792A1 WO 2024149792 A1 WO2024149792 A1 WO 2024149792A1 EP 2024050462 W EP2024050462 W EP 2024050462W WO 2024149792 A1 WO2024149792 A1 WO 2024149792A1
Authority
WO
WIPO (PCT)
Prior art keywords
web
corrugated cardboard
laminated
sided
sided laminated
Prior art date
Application number
PCT/EP2024/050462
Other languages
German (de)
English (en)
Inventor
Florian MÜLLER
Maximilian Rosemann
Original Assignee
Bhs Corrugated Maschinen- Und Anlagenbau Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bhs Corrugated Maschinen- Und Anlagenbau Gmbh filed Critical Bhs Corrugated Maschinen- Und Anlagenbau Gmbh
Publication of WO2024149792A1 publication Critical patent/WO2024149792A1/fr

Links

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
    • B31F1/2831—Control
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
    • B65H23/032—Controlling transverse register of web

Definitions

  • the invention relates to a corrugated cardboard plant. Furthermore, the invention is directed to a method for producing corrugated cardboard.
  • Corrugated cardboard plants are known from obvious prior use in which the edges of individual webs are recorded to form double-sided laminated corrugated cardboard webs before they are glued together to check their arrangement in relation to one another.
  • the quality of such double-sided laminated corrugated cardboard webs is often unsatisfactory. Their production is also not always sustainable.
  • the invention is based on the object of providing an improved corrugated cardboard plant.
  • the corrugated cardboard plant should be able to produce corrugated cardboard particularly efficiently and sustainably, which is also preferably of extremely high quality.
  • a corresponding method should also be provided.
  • the single-sided laminated corrugated cardboard web and/or laminated web can change their size or (transverse) dimensions, in particular shrink, and/or they can run towards each other until they are connected to each other to form the double-sided laminated corrugated cardboard web.
  • the core of the invention lies in the at least one first web edge detection device, which is arranged downstream of the connecting device in the conveying or transport direction of the double-sided laminated corrugated cardboard web and is thus able to detect or check the fully connected, double-sided laminated corrugated cardboard web.
  • a size change Changes in the single-sided laminated corrugated cardboard web and/or the laminated web and/or their course in relation to one another can thus be taken into account or recorded using the double-sided laminated corrugated cardboard web.
  • an exact connection of the single-sided laminated corrugated cardboard web and the laminated web can be achieved with one another, for example automatically, in particular fully automatically. If necessary, the single-sided laminated corrugated cardboard web and/or the laminated web are adjusted, in particular in their transverse direction or width direction, advantageously when a predetermined tolerance range is exceeded. Preferably, a web edge differential control of the single-sided laminated corrugated cardboard web and/or the laminated web is carried out.
  • the at least one first web edge detection device preferably works in a contactless manner during operation and preferably when the double-sided laminated corrugated cardboard web is being transported. It is advantageously designed as an optical, in particular electro-optical, web edge detection device which is preferably capable of detecting or measuring, for example continuously or cyclically, a distance or a distance to the first web edges, in particular longitudinal edges, of the single-sided laminated corrugated cardboard web or of at least one individual Z-material web (cover web and/or intermediate web) thereof and the laminated web in the double-sided laminated corrugated cardboard web in order to check an arrangement, alignment or an offset of the single-sided laminated corrugated cardboard web and laminated web in the double-sided laminated corrugated cardboard web in a transverse direction or width direction of the double-sided laminated corrugated cardboard web, i.e.
  • Each longitudinal edge region advantageously runs along the double-sided laminated corrugated cardboard web. It preferably extends adjacent to a respective longitudinal edge of the double-sided laminated corrugated cardboard web.
  • the first longitudinal edge region extends, for example, on the operator side, while the second longitudinal edge region runs, for example, on the drive side. An opposite orientation is alternatively possible.
  • the longitudinal edge regions extend in the transverse direction of the double-sided laminated corrugated cardboard web at a distance from one another.
  • the connecting device is designed as a heating-pressing device, which preferably forms at least one connecting gap through which the corrugated cardboard web laminated on one side and the laminated web are guided for joining together, in particular by gluing or firmly joining together.
  • the device for producing a single-sided laminated corrugated cardboard web is advantageously preceded by a first unwinding device for unwinding a, preferably endless, first material web and a second unwinding device for unwinding a, preferably endless, second material web.
  • the device for producing a single-sided laminated corrugated cardboard web is preferably capable of producing the single-sided laminated corrugated cardboard web from the first material web and the second material web. It preferably comprises a corrugating device for corrugating the first material web to form a corrugated web. It is expedient if it has a glue application device for applying glue to the corrugated web.
  • the device for producing a single-sided laminated corrugated cardboard web advantageously has a pressing device for pressing the glued corrugated web and the second material web together to form a single-sided laminated corrugated cardboard web.
  • the lamination web unwinding device is advantageously capable of unwinding an endless lamination web.
  • the processing unit is preferably designed as a control and/or regulating unit and is able to receive and process the web edge signals, in particular directly or indirectly from the web edge detection device. It is advantageously an electrical, preferably electronic, processing unit.
  • the processing unit is, for example, part of the web edge detection device. Preferably, however, it is superior to this.
  • the arrangement of the at least one first web edge detection device according to subclaim 2 leads to an extremely high detection accuracy of the double-sided laminated corrugated cardboard web, which allows a particularly efficient production of the double-sided laminated corrugated cardboard web. Furthermore, such a double-sided laminated corrugated cardboard web is of extremely high quality. It is expedient if the at least one first web edge detection device is arranged, in particular laterally, i.e. in the transverse or width direction of the double-sided laminated corrugated cardboard web, at a distance from, but preferably adjacent to, the double-sided laminated corrugated cardboard web. It is advantageously arranged there at the vertical height of the double-sided laminated corrugated cardboard web.
  • the embodiment according to subclaim 3 results in a web edge detection device that is particularly accurate and fast.
  • the at least one first web edge detection device carries out more than 100, preferably more than 500, preferably more than 1000 measurements per second. It preferably comprises at least one radiation source, such as a laser source, which directs or focuses at least one beam, advantageously a plurality of beams or a beam line, onto the first web edges of the single-sided laminated corrugated cardboard web and laminated web.
  • the at least one first web edge detection device also has at least one receiving unit which is able to receive the at least one beam reflected from the web edges of the single-sided laminated corrugated cardboard web and laminated web, preferably via at least one optical system or a deflecting mirror.
  • the at least one receiving unit is designed, for example, as a sensor, camera, photodiode, CCD unit or the like.
  • the at least one reflected beam preferably hits the at least one receiving unit at a certain angle depending on the distance.
  • a distance to the first web edges of the corrugated cardboard web and the laminating web laminated on one side can preferably be determined or calculated by a position of at least one point of the at least one beam on the at least one receiving unit and from the distance of the at least one radiation source to the at least one receiving unit. A distance determination is thus carried out by angle calculation.
  • the design according to subclaim 4 allows an, for example automated, preferably step-by-step or continuous, adaptation to the double-sided laminated corrugated cardboard web, in particular to its width in the transverse direction.
  • the at least one first web edge detection device is, for example, fixed or stationary, which leads to a comparatively cost-effective web edge detection of the double-sided laminated corrugated cardboard web.
  • the at least one web edge evaluation device according to subclaim 5 is preferably capable of receiving and processing web edge signals from the at least one first web edge detection device for the corrugated cardboard web laminated on both sides. It is preferably of an electrical or electronic type and is advantageously in signal connection with the processing unit at least temporarily, directly or indirectly.
  • the at least one second web edge detection device according to dependent claim 6 is preferably designed like the at least one first web edge detection device. It is also preferably arranged in a similar way to the at least one first web edge detection device.
  • the web edge detection device according to dependent claim 6 has an extremely high detection accuracy. It is able to detect an offset of the corrugated cardboard web laminated on one side and the laminated web in the corrugated cardboard web laminated on both sides with respect to one another particularly precisely and reliably. It is expedient if the at least one first and second web edge detection device are arranged at a common vertical height.
  • the at least one first web edge detection device preferably detects the first web edge of the laminated web, i.e. the web edge on a first side. It advantageously also detects at least one first web edge of the corrugated cardboard web laminated on one side or of at least one individual web (cover web and/or intermediate web) thereof, i.e. at least one web edge on the first side.
  • a difference between the detected first path edges is calculated.
  • the at least one second web edge detection device detects the second web edge of the laminating web during operation, i.e. the Web edge on a second side. It advantageously also detects at least one second web edge of the corrugated cardboard web laminated on one side or of at least one individual web (cover web and/or intermediate web) thereof, i.e. at least one web edge on the second side. A difference between the detected second web edges is preferably calculated.
  • This method is preferably also used analogously for a double-sided laminated corrugated cardboard web with more than one single-sided laminated corrugated cardboard web.
  • the design according to subclaim 7 also allows a particularly precise and functionally reliable detection of the arrangement of the corrugated cardboard web laminated on one side and the laminated web in the corrugated cardboard web laminated on both sides relative to one another.
  • the corrugated cardboard web laminated on both sides runs, for example centrally or laterally offset, between the at least one first web edge detection device and at least one second web edge detection device.
  • the design according to subclaim 8 enables the detection of the first web edges and preferably possibly second web edges before the edge trimming, so that an (original) offset between the corrugated cardboard web laminated on one side and the laminated web in the corrugated cardboard web laminated on both sides can be reliably and precisely determined.
  • the edge cutting device is part of a longitudinal cutting and grooving device.
  • the at least one first web edge detection A second web edge detection device and preferably at least one second web edge detection device, if present, is/are arranged between the edge cutting device and the connecting device.
  • the design according to subclaim 9 allows a displacement of the lamination web and the corrugated cardboard web laminated on one side relative to one another, if necessary or desired, which in particular has an effect on the arrangement of the lamination web and the corrugated cardboard web laminated on one side relative to one another in the corrugated cardboard web laminated on both sides.
  • the at least one displacement device is preferably in direct or indirect contact with the web to be displaced and is, for example, axially displaceable, such as displaceable, and/or deflectable or tiltable or inclined.
  • the design according to subclaim 10 leads to an extremely efficient production of a corrugated cardboard web laminated on both sides. Edge trimming can thus be avoided or reduced. Waste can thus be avoided or reduced.
  • the webs are aligned or regulated in the middle or at the edges.
  • the webs are glued or bonded to one another, for example, in the middle or at the edges.
  • the at least one displacement device is, for example, capable of displacing, shifting and/or tilting at least one receiving device for receiving at least one laminated web roll, which allows a change in the course of the laminated web in its transverse direction and a change in the arrangement of the laminated web compared to the single-sided laminated corrugated cardboard web in the double-sided laminated corrugated cardboard web.
  • at least one receiving device is Basic position or neutral position can be moved transversely and/or tilted or set at an angle. In the basic position, the lamination web rolls off normally. It is useful if the transverse position of the lamination web is changed compared to the corrugated cardboard web laminated on one side in the corrugated cardboard web laminated on both sides, for example to minimize a single-layer edge area.
  • the at least one displacement device is preferably capable of redirecting or deflecting the single-sided laminated corrugated cardboard web. It is designed, for example, as a displacement roller, in particular a tiltable one, which enables a change in the course of the single-sided laminated corrugated cardboard web in its transverse direction and a change in the single-sided laminated corrugated cardboard web relative to the laminated web in the double-sided laminated corrugated cardboard web.
  • at least one displacement roller can be tilted or inclined from its basic position or neutral position. In the basic position, the single-sided laminated corrugated cardboard web remains undeflected.
  • the web edge detection device is thus able to carry out a quality check of the double-sided laminated corrugated cardboard web. For example, it can be determined whether the double-sided laminated corrugated cardboard web or its laminated web or single-sided laminated corrugated cardboard web is/are squeezed at least in some areas. This allows, for example, a conclusion to be drawn as to whether the double-sided laminated corrugated cardboard web or its individual webs has/have been heated incorrectly, such as too cold or warm, and/or whether a working gap has been set incorrectly, such as too narrow or wide.
  • the corrugated cardboard plant according to dependent claim 14 is capable of producing a double-sided laminated corrugated cardboard web comprising more than three layers, such as five layers or seven layers.
  • the devices for producing a single-sided laminated corrugated cardboard web are preferably designed identically. Each device for producing a single-sided laminated corrugated cardboard web is capable of producing a single-sided laminated corrugated cardboard web.
  • Fig. 1 is a partial side view of a corrugated board machine according to the invention
  • Fig. 2 is a view illustrating in simplified form a web edge detection device of the corrugator shown in Fig. 1,
  • Fig. 3 is a view corresponding to Fig. 2 showing an alternative web edge detection device of a corrugated board plant according to the invention
  • Fig. 4 is a plan view showing essentially a displacement device for displacing a single-sided laminated corrugated cardboard web of the corrugated cardboard plant shown together with its surroundings, and Fig. 5 a section according to the section line VV in Fig. 4
  • a corrugated board plant comprises a first device 1 for producing a single-sided laminated corrugated board web, which is capable of producing a first single-sided laminated, endless corrugated board web 2.
  • the corrugated board plant also has a second device 3 for producing a single-sided laminated corrugated board web, which is capable of producing a second single-sided laminated, endless corrugated board web 4.
  • a first splicing device (not shown) and a second splicing device (not shown) are arranged upstream of the first device 1 for producing a single-sided laminated corrugated cardboard web.
  • the first splicing device is designed as an intermediate web splicing device. It comprises a first unwinding device for unrolling a first finite intermediate web from a first intermediate web roll and a second unrolling device for unrolling a second finite intermediate web from a second intermediate web roll.
  • the first splicing device is capable of connecting the first and second finite intermediate webs to one another to form a first endless intermediate web 6 (Fig. 2).
  • the second splicing device is designed like the first splicing device. This is designed as a cover sheet splicing device and comprises a third unwinding device for unrolling a first finite cover sheet from a first cover sheet roll and a fourth unrolling device for unrolling a second finite cover sheet from a second cover sheet roll.
  • the second splicing device is able to connect the first and second finite cover sheets to one another to form a first endless cover sheet 5 (Fig. 2).
  • a third splicing device (not shown) and a fourth splicing device are arranged upstream of the second device 3 for producing a single-sided laminated corrugated cardboard web.
  • the third splicing device is designed as an intermediate web splicing device. It comprises a fifth unwinding device for unrolling a third finite intermediate web from a third intermediate web roll and a sixth unrolling device for unrolling a fourth finite intermediate web from a fourth intermediate web roll.
  • the third splicing device is capable of connecting the third and fourth finite intermediate webs to one another to form a second endless intermediate web 8 (Fig. 2).
  • the fourth splicing device is designed like the third splicing device. This is designed as a cover web splicing device and comprises a seventh unwinding device for unrolling a third finite cover web from a third cover web roll and an eighth unrolling device for unrolling a fourth finite cover web from a fourth cover web roll.
  • the fourth splicing device is able to connect the third and fourth finite cover webs to one another to form a second endless cover web 7 (Fig. 2).
  • the first endless intermediate web 6 and first endless cover web 5 are fed to the first device 1 for producing a single-sided laminated corrugated cardboard web.
  • the second endless intermediate web 8 and second endless cover web 7 are fed to the second device 3 for producing a single-sided laminated corrugated cardboard web.
  • Each device 1, 3 for producing a single-sided laminated corrugated cardboard web comprises a corrugation or fluting for producing a facing, endless corrugated web from the corresponding supplied endless intermediate web 6 or 8, a corrugating device (not shown) with a first corrugating roller and a second corrugating roller.
  • the corrugating rollers are arranged adjacent to one another in each device 1, 3 for producing a single-sided laminated corrugated cardboard web and form a corrugating roller pair. They form a corrugating gap for feeding through and corrugating the corresponding endless intermediate web 6 or 8.
  • the corrugating rollers are mounted so that they can rotate or be driven in rotation.
  • the axes of rotation of the corrugating rollers of each corrugating roller pair run parallel to one another and preferably one above the other.
  • each smooth endless cover sheet 5, 7 is then joined to the corresponding endless corrugated sheet 6 or 8, provided with glue from the corresponding glue container, in the corresponding device 1 or 3 to produce a corrugated cardboard sheet laminated on one side.
  • each device 1, 3 for producing a single-sided laminated corrugated cardboard web has a pressing device (not shown) which is designed as a pressing belt device or pressing belt module.
  • Each pressing device is arranged above the adjacent first corrugating roller. It has at least two pressing belt deflection rollers arranged at a distance from one another and an endless pressing belt which is guided around the pressing belt deflection rollers.
  • Each first corrugating roller engages in a space between the adjacent pressing belt deflection rollers in some areas from below, whereby the pressing belt is deflected by the corresponding first corrugating roller.
  • Each pressure belt presses against the corresponding endless cover sheet 5 or 7, which in turn is pressed against the glued endless corrugated sheet 6 or 8, which is in contact with the adjacent first corrugating roller, to form the one-sidedly laminated corrugated cardboard sheet 2 or 4.
  • the first one-sided laminated, endless corrugated web 2 comprises exactly one first endless cover web 5 and exactly one first endless intermediate web 6.
  • the second one-sided laminated, endless corrugated cardboard web 4 has exactly one second endless cover web 7 and exactly one second endless intermediate web 8.
  • Each one-sided laminated, endless corrugated cardboard web 2 or 4 is two-layered.
  • Each continuous corrugated cardboard web 2 or 4, laminated on one side, is fed to a bridge 9 of the corrugated cardboard plant for intermediate storage and buffering via a corresponding high-lift device, where it forms loops if there is sufficient stock.
  • the first one-sided laminated, endless corrugated cardboard web 2 is guided on the bridge 9 to a first guide device 10 for guiding the one-sided laminated, endless corrugated cardboard web 2.
  • the first guide device 10 is arranged in a downstream end region of the bridge 9.
  • Each guide device 10, 11 is, for example, capable of detecting a transverse position of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4.
  • Each guide device 10, 11 is, if necessary, capable of correcting a transverse position of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 downstream and in particular - if necessary - of ensuring a transverse deflection of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 downstream.
  • Each guide device 10, 11 is then capable of guiding the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 accordingly.
  • Each guide device 10, 11 has at least one guide roller 12 for this purpose, which is in direct contact with the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 or is, for example, partially wrapped around by it.
  • the at least one guide roller 12 extends in a basic position perpendicular to a conveying direction 14 of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4. It can be tilted or inclined for the transverse deflection or lateral displacement of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 from the basic position, in particular about a vertical axis.
  • Each guide roller 12 is provided with A corresponding (actuating) drive is preferably assigned to each of them.
  • the corresponding guide roller 12 is preferably pressed against the one-sided laminated, endless corrugated cardboard web 2 or 4 to be deflected.
  • the guide devices 10, 11 can be operated independently of one another. As Fig. 4 shows, the at least one guide roller 12 extends only over a partial width of the respective one-sided laminated, endless corrugated cardboard web 2 or 4.
  • each guide device 10, 11 or adjacent thereto for example, a splice detection device is provided which is capable of detecting a change in the width of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 and/or directly detecting a splice point in the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4.
  • each splice detection device preferably has a rotatable detection roller resting on the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 and/or a contactless scanning device for scanning side areas of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4.
  • the detection rollers each extend transversely to the conveying direction 14 of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 and serve to mechanically detect a splice point in the one-sidedly laminated, endless corrugated cardboard web 2 or 4 being guided past.
  • the scanning devices are able to detect a change in the width of the one-sidedly laminated, endless corrugated cardboard web 2 or 4 being guided past, which can also provide an indication of a splice point in this one-sidedly laminated, endless corrugated cardboard web 2 or 4.
  • each guide roller 12 and preferably adjacent thereto, for example, a pair of de-looping rollers is arranged, which ensure that the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 is de-looped.
  • the de-looping rollers of a de-looping roller pair are arranged essentially horizontally spaced from one another and extend transversely to the conveying direction 14 of the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4.
  • Each one-sidedly laminated, endless corrugated cardboard web 2, 4 is guided through a de-looping roller pair.
  • each guide roller 12 advantageously adjacent thereto, there is preferably arranged at least one guide roller 13 for guiding the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4.
  • each guide roller 12 Downstream of each guide roller 12 there is a brake roller 16, which is preferably rubberized and can be driven in rotation and/or braked by a servo drive (not shown).
  • the brake rollers 16 ensure a taut or tensioned, one-sidedly laminated, endless corrugated cardboard web 2, 4, the web tension of which is preferably kept constant.
  • Each one-sidedly laminated, endless corrugated cardboard web 2, 4 is assigned a brake roller 16, around which the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4 is guided.
  • a light grid 16a is arranged, which is able to detect the respective one-sidedly laminated, endless corrugated cardboard web 2 or 4.
  • the laminated web splicing device 17 further comprises a base frame 24 with at least one base frame base 25, at least one base frame stand 26 and at least one base frame support 27.
  • the at least one base frame base 25 is fastened to a floor or a subsurface.
  • the at least one base frame stand 26 is arranged on the at least one base frame base 25 and extends vertically or perpendicularly to the floor.
  • the at least one base frame support 27 is arranged at an end of the at least one base frame stand 26 opposite the at least one base frame base 25 and runs parallel to the floor.
  • the ninth and tenth unwinding devices 21, 23 are arranged opposite one another relative to the at least one base frame stand 26 or base frame base 25.
  • the at least one base frame support 27 carries a splicing device of the laminated web splicing device 17.
  • the first finite laminated web 19 and the second finite laminated web are connected to one another by means of the splicing device to provide the endless laminated web 18.
  • the first finite laminated web 19 and the second finite laminated web are guided from the respective laminated web roll 20 and 22 into the splicing device.
  • the splicing device is preferably designed as a connecting and cutting device. It comprises, for example, a first preparation device, a second preparation device, a first connecting device, a second connecting device, a table device and a guide as well as a movable storage carriage.
  • the endless laminating web 19 is single-layered.
  • the base frame 24 carries an elongated first support arrangement which extends horizontally and supports the ninth unwinding device 21.
  • the ninth unwinding device 21 has two first support arms 28 which are arranged along the first support arrangement and each carry a first receiving part.
  • the first receiving parts are guided into a central opening of the first laminating web roll 20. They engage in the first laminating web roll 20 from both end faces. A longitudinal center axis of the first laminating web roll 20 then runs parallel to the first support arrangement.
  • the first support arms 28 can be displaced together in a uniform manner along the first support arrangement, which leads to a displacement of the first laminated web roll 20 along its longitudinal center axis or of the first finite laminated web 19 or endless laminated web 18 unrolled from it in its transverse direction or width direction. Alternatively or additionally, they can be pivoted relative to one another around the first support arrangement, which enables a tilting of the first laminated web roll 20 and thus a deflection of the first finite laminated web 19 or endless laminated web 18 in its transverse direction.
  • the base frame 24 also carries an elongated second support arrangement which extends horizontally and runs parallel to the first support arrangement.
  • the second support arrangement supports the tenth unwinding device 23.
  • the tenth unwinding device 23 has two second support arms 29 which are arranged along the second support arrangement and each carry a second receiving part.
  • the second receiving parts are guided into a central opening of the second laminating web roll 22. They grip from both end faces into the second laminating web roll 22. A longitudinal center axis of the second laminating web roll 22 then runs parallel to the second support arrangement.
  • the second support arms 29 can be displaced together in a uniform manner along the second support arrangement, which leads to a displacement of the second laminating web roll 22 along its longitudinal center axis or of the second finite laminating web or endless laminating web 18 unrolled from it in its transverse direction or width direction.
  • they can be pivoted relative to one another around the second support arrangement, which enables a tilting of the second laminating web roll 22 and thus a deflection of the second finite laminating web or endless laminating web 18 in its transverse direction.
  • the laminated web splicing device 17 has at least one corresponding first displacement unit 30, which comprises, for example, at least one electric drive, pneumatic drive or hydraulic drive.
  • a preheating device 32 of the corrugated cardboard system Downstream of the braking rollers 16 and the lamination web splicing device 17, a preheating device 32 of the corrugated cardboard system is arranged, which comprises three preheating rollers 33 arranged one above the other.
  • the one-sidedly laminated, endless corrugated cardboard webs 2, 4 and the endless lamination web 18 are fed to the preheating device 32, each of which partially wraps around a preheating roller 33 and is thus heated.
  • Each continuous corrugated cardboard web 2, 4 laminated on one side rests with its corrugated web 6 or 8 on the respective gluing roller 35, which thus applies glue from an associated glue bath to the corrugated web 6 or 8, preferably in a metered manner.
  • a connecting device 36 of the corrugated cardboard system is arranged in the form of a heating and pressing device.
  • the heating and pressing device 36 the glued, one-sidedly laminated, endless corrugated cardboard webs 2, 4 and the endless laminated web 18 are heated and pressed together.
  • the heating and pressing device 36 has a horizontally running heating table 37 and at least one endless pressing belt 38, which extends in some areas adjacent to the heating table 37 and is guided around pressure belt guide rollers.
  • the corrugated cardboard plant has just one device for producing a single-sided laminated corrugated cardboard web, then a double-sided or two-sided laminated corrugated cardboard web can be produced that has a total of three layers. If the corrugated cardboard plant has, for example, three devices for producing a single-sided laminated corrugated cardboard web, then a double-sided laminated corrugated cardboard web can be produced that has a total of seven layers.
  • a longitudinal cutting/creasing device 40 of the corrugated cardboard plant Downstream of the connecting device 36, a longitudinal cutting/creasing device 40 of the corrugated cardboard plant is arranged.
  • the longitudinal cutting /Creasing device 40 has creasing stations and longitudinal cutting stations arranged one behind the other.
  • the creasing stations each have creasing tools arranged in pairs one above the other, between which the endless corrugated cardboard web 39 laminated on both sides is guided.
  • the longitudinal cutting stations each have rotary-driven knives that can be brought into engagement with the endless corrugated cardboard web 39 laminated on both sides to cut it lengthwise.
  • the knives interact with oppositely arranged, rotary-driven counter elements, such as brush rollers, when the knives are immersed in the endless corrugated cardboard web 39 laminated on both sides.
  • the longitudinal cutting stations allow the endless corrugated cardboard web 39 laminated on both sides to be divided into several partial corrugated cardboard webs 41, 42, which are conveyed further in the conveying direction 14 and are initially located next to one another.
  • the longitudinal cutting stations are also capable of performing edge trimming on the double-sided laminated, endless corrugated cardboard web 39, in particular on both sides. They also form an edge cutting device.
  • a switch 43 Downstream of the longitudinal cutting-creasing device 40, a switch 43 is provided which guides the partial corrugated cardboard webs 41, 42 into different planes.
  • a cross-cutting device (not shown) of the corrugated cardboard system is provided, which comprises cross-cutting rollers arranged in pairs. Cross-cutting rollers arranged in pairs are able to completely sever the partial corrugated cardboard webs 41, 42 in the transverse direction and thus produce sheets.
  • a stacking device Downstream of the cross-cutting device, a stacking device (not shown) is arranged for stacking the sheets.
  • a first web edge detection device 44 and a second web edge detection device 45 are arranged between the connecting device 36 and the longitudinal cutting/grooving device 40.
  • the web edge detection devices 44, 45 are identically designed and laterally spaced apart, but are arranged in a stationary manner adjacent to the double-sided, endless corrugated cardboard web 39, which runs horizontally there. They are arranged on a horizontal straight line or in a plane that extends perpendicular to the conveying direction 14, i.e. in a transverse direction or width direction of the double-sided, endless corrugated cardboard web 39.
  • the double-sided, endless corrugated cardboard web 39 runs, for example, centrally between the web edge detection devices 44, 45.
  • the web edge detection devices 44, 45 are arranged to the left and right of the double-sided, endless corrugated cardboard web 39.
  • the web edge detection devices 44, 45 are designed as laser triangulation web edge detection devices. As shown in Fig. 2, the first web edge detection device 44 generates a first laser field 46 during operation, which strikes an adjacent first longitudinal edge region 47 of the double-sided, endless corrugated cardboard web 39 from the outside across its entire thickness D.
  • the second web edge detection device 45 generates a second laser field 48 during operation, which strikes an adjacent second longitudinal edge region 49 of the double-sided, endless corrugated cardboard web 39 from the outside across its entire thickness D.
  • the laser fields 46, 48 run from the respective web edge detection device 44 or 45 towards each other and preferably increase in their transverse extent or height. During operation, they form laser lines on/at the endless corrugated cardboard web 39 laminated on both sides.
  • the longitudinal edge regions 47, 49 run parallel to each other and extend parallel to each other in the conveying direction 14.
  • the first laser field 46 strikes from the outside on a first adjacent facing longitudinal edge 50 of the first endless cover web 5, a first adjacent facing longitudinal edge 51 of the first endless intermediate web 6, a first adjacent facing longitudinal edge 52 of the second endless cover web 7, a first adjacent facing longitudinal edge 53 of the second endless intermediate web 8 and a first adjacent facing longitudinal edge 54 of the endless lamination web 18.
  • the first longitudinal edges 50, 51, 52, 53 and 54 run adjacent to one another and one above the other. They extend (essentially) parallel to one another and in the conveying direction 14. They each run in the first longitudinal edge region 47.
  • the second laser field 48 strikes from the outside on a second adjacent facing longitudinal edge 50 of the first endless cover web 5, a second adjacent facing longitudinal edge 51 of the first endless intermediate web 6, a second adjacent facing longitudinal edge 52 of the second endless cover web 7, a second adjacent facing longitudinal edge 53 of the second endless intermediate web 8 and a second adjacent facing longitudinal edge 54 of the endless lamination web 18.
  • the second longitudinal edges 50, 51, 52, 53 and 54 run adjacent to one another and one above the other. They extend (essentially) parallel to one another and in the conveying direction 14. They each run in the second longitudinal edge region 49.
  • the longitudinal edges 50, 51, 52, 53 and 54 of the The respective tracks 5, 6, 7, 8 and 18 run parallel to each other. They form corresponding longitudinal edges.
  • Each web edge detection device 44, 45 is capable of generating a laser field 46 or 48 that extends over the entire thickness D of the endless corrugated cardboard web 39 laminated on both sides. Distances or distances of the longitudinal edges 50 to 54 to the adjacent web edge detection device 44, 45 can be determined in this way. Transverse positions or courses of the longitudinal edges 50 to 54 can be detected or measured.
  • the web edge detection devices 44, 45 are at least temporarily in signal connection with a web edge evaluation device 55 that receives corresponding electrical web edge signals.
  • each web edge detection device 44, 45 has, for example, its own integrated web edge evaluation device. The distances or distances of the longitudinal edges 50 to 54 to the adjacent web edge detection device 44, 45 are thus converted into, in particular electrical, distance or web edge signals.
  • the web edge evaluation device 55 and the web edge detection devices 44, 45 are part of a web edge detection device.
  • the web edge detection device is at least temporarily in signal communication with a processing unit 56 of the corrugated cardboard system, which is preferably capable of controlling and/or regulating the corrugated cardboard system or its operation.
  • the processing unit 56 receives electrical signals from the web edge detection device that relate to the respective current transverse position of the first endless cover web 5, first endless intermediate web 6, second endless cover web 7, second endless intermediate web 8 and endless lamination web 18 at the web edge detection devices 44, 45. During operation, it therefore receives electrical signals from the web edge detection device that relate to the respective current transverse position of the single-sidedly laminated, endless corrugated cardboard webs 2, 4 and endless lamination web 18 at the web edge detection devices 44, 45.
  • the processing unit 56 actuates the first guide device 10 for transverse deflection of the first one-sidedly laminated, endless corrugated cardboard web 2, second guide device 11 for transverse deflection of the second one-sidedly laminated, endless corrugated cardboard web 4, the first displacement unit 30 for the transverse deflection of the finite first lamination web 19 or endless lamination web 19 and/or the second displacement unit 31 for the transverse deflection of the finite second lamination web or endless lamination web 19, respectively.
  • transverse positions of the longitudinal edges 50 to 54 can thus be changed relative to one another in the double-sided, endless corrugated cardboard web 39.
  • a longitudinal edge differential control of the first single-sided, endless corrugated cardboard web 2, the second single-sided, endless corrugated cardboard web 4 and the endless laminated web 19 is carried out.
  • upstream refers in particular to the conveying direction or the transport direction of the associated or assigned track.
  • the signal connections specified can be wired or wireless. They are preferably capable of transporting signals, especially electrical ones. They can be present continuously or cyclically. The corresponding signals or information can be transmitted in this way.
  • Each web edge detection device 44, 45 is preferably guided, displaceable, such as, in particular, horizontally, displaceable or movable in a transverse or width direction of the double-sided, endless corrugated cardboard web 39.
  • the web edge detection devices 44, 45 can be displaced towards or away from each other and thus can be adjusted, for example, to a width or transverse extent of the double-sided, endless corrugated cardboard web 39 to be detected.
  • the displacement of the Web edge detection devices 44, 45 are carried out manually or automatically, for example.
  • the web edge detection devices 44, 45 are preferably carried by a support device 57 that is directly or indirectly connected to a floor or subsurface.
  • each web edge detection device 44, 45 is assigned its own support device 57. Alternatively, they share a common support device 57.

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

Abstract

L'invention concerne une onduleuse qui comprend un dispositif (1) permettant de fabriquer une bande de carton ondulé contrecollée d'un côté, un dispositif de déroulement de bande contrecollée (17) destiné à dérouler une bande de contrecollage (18, 19) et un dispositif d'assemblage (36) destiné à relier une bande de carton ondulé (2) contrecollée d'un côté et la bande de contrecollage (18, 19) de manière à former une bande de carton ondulé (39) contrecollée des deux côtés comportant une première zone marginale longitudinale (47). L'onduleuse comporte en outre un système de détection de bords de bande présentant au moins un premier dispositif de détection de bords de bande (44) monté en aval du dispositif d'assemblage (36) et destiné à détecter de premiers bords de bande (50, 51, 54) de la bande de carton ondulé contrecollée d'un côté (2) et de la bande de contrecollage (18, 19) dans la bande de carton ondulé contrecollée des deux côtés (39) au moins dans une première zone marginale longitudinale (47) de la bande de carton ondulé contrecollée des deux côtés (39) pour vérifier un agencement mutuel de la bande de carton ondulé contrecollée d'un côté (2) et de la bande de contrecollage (18, 19) dans la bande de carton ondulé contrecollée des deux côtés (39). En outre le dispositif de détection de bords de bande comporte une unité de traitement (56), qui est en liaison de signalisation avec le dispositif de détection de bords de bande et qui est en mesure de traiter des signaux de bords de bande en direction de la bande de carton ondulé contrecollée des deux côtés (39).
PCT/EP2024/050462 2023-01-13 2024-01-10 Onduleuse WO2024149792A1 (fr)

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Application Number Priority Date Filing Date Title
DE102023200246.9A DE102023200246A1 (de) 2023-01-13 2023-01-13 Wellpappeanlage
DE102023200246.9 2023-01-13

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WO2024149792A1 true WO2024149792A1 (fr) 2024-07-18

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PCT/EP2024/050462 WO2024149792A1 (fr) 2023-01-13 2024-01-10 Onduleuse

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DE (1) DE102023200246A1 (fr)
WO (1) WO2024149792A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087313A (en) * 1989-03-13 1992-02-11 Arc Machinary Corporation Paper web alignment system
US5581353A (en) * 1995-02-14 1996-12-03 Qualitek Ltd. Laser-based measurement apparatus and method for the on-line measurement of multiple corrugated board characteristics
US20030084985A1 (en) * 2001-09-27 2003-05-08 Fahri Iren Laminating machine for manufacturing corrugated cardboard and method of use

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017216718A1 (de) 2017-09-21 2019-03-21 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Wellpappeanlage
DE102019207589A1 (de) 2019-05-23 2020-11-26 Bhs Corrugated Maschinen- Und Anlagenbau Gmbh Anordnung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5087313A (en) * 1989-03-13 1992-02-11 Arc Machinary Corporation Paper web alignment system
US5581353A (en) * 1995-02-14 1996-12-03 Qualitek Ltd. Laser-based measurement apparatus and method for the on-line measurement of multiple corrugated board characteristics
US20030084985A1 (en) * 2001-09-27 2003-05-08 Fahri Iren Laminating machine for manufacturing corrugated cardboard and method of use

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