EP2845724B1 - Dispositif et procédé destiné à rainurer du carton ondulé ou du carton homogène - Google Patents

Dispositif et procédé destiné à rainurer du carton ondulé ou du carton homogène Download PDF

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Publication number
EP2845724B1
EP2845724B1 EP14180663.8A EP14180663A EP2845724B1 EP 2845724 B1 EP2845724 B1 EP 2845724B1 EP 14180663 A EP14180663 A EP 14180663A EP 2845724 B1 EP2845724 B1 EP 2845724B1
Authority
EP
European Patent Office
Prior art keywords
sonotrode
cardboard
corrugated cardboard
solid
anvil
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.)
Not-in-force
Application number
EP14180663.8A
Other languages
German (de)
English (en)
Other versions
EP2845724A1 (fr
Inventor
Thomas Stober
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH
Original Assignee
Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge 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 Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH filed Critical Wilhelm Bahmueller Maschinenbau Praezisionswerkzeuge GmbH
Publication of EP2845724A1 publication Critical patent/EP2845724A1/fr
Application granted granted Critical
Publication of EP2845724B1 publication Critical patent/EP2845724B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
    • B31F1/08—Creasing
    • 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
    • B31F1/08—Creasing
    • B31F1/10—Creasing by rotary tools
    • 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
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/25—Surface scoring
    • B31B50/256—Surface scoring using tools mounted on a drum
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • B31B50/644—Making seals parallel to the direction of movement, i.e. longitudinal sealing
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • B31B50/645—Making seals transversally to the direction of movement
    • 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
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/64—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding
    • B31B50/649—Uniting opposed surfaces or edges; Taping by applying heat or pressure, e.g. by welding using tools mounted on a drum

Definitions

  • the invention relates to a device for corrugating corrugated board or solid board and a method for corrugating corrugated board or solid board according to the independent claims 1 and 6 JP H02 277620 A shows a device according to the preamble of claim 1.
  • the inventive device and the method according to the invention can be used in the same way in the corrugated cardboard or solid board. Therefore, protection for corrugated cardboard and solid board is claimed. Everything that is revealed in connection with the corrugated board is therefore also valid for the corrugation of solid board. For reasons of linguistic simplification, sometimes only corrugated board is used, although solid board is also meant.
  • the term "cardboard" definitely includes both types.
  • slots and grooves are made in the board.
  • narrow recesses are cut into the cardboard while the grooves cause local compression of the cardboard.
  • the cardboard is later angled to form the flat cardboard, for example, a box.
  • FIG. 1 is a commercial corrugated cardboard with a shaft exemplified as a section.
  • the corrugated cardboard 1 comprises an upper layer 3, a shaft 5 and a lower layer 7.
  • This corrugated cardboard 1 is very stable in terms of its own weight and is therefore widely used for the manufacture of boxes or other packaging.
  • FIG. 2 is a flat blank 9 shown from cardboard from which a box or the like can be folded later.
  • the blank 9 has a plurality of slots 11 and score lines 13. In the area of the slots, the cardboard is severed, while the cardboard was only locally compressed in the area of the score line 13, to allow easier folding or folding of the corrugated board.
  • This groove is a procedure that has been established for many years.
  • the creasing lines 13 are produced by a creasing body and a counterbody.
  • this conventional grooves reaches technological limits. Namely, if the quality of Corrugated board is not good, then it can happen when the grooves that the cover layer 3 or the lower layer 7 of the corrugated cardboard tears, which is undesirable.
  • the score lines 13 are to extend orthogonally to the upper or lower edge of the corrugated cardboard blank 9, and the individual parts do not bend the various sections 15, 17, 19 and / or 21 of the corrugated cardboard blank 9 along the score line 13 due to a weak score line 13, then the corrugated board does not close flush after folding, but the top edge or the lower edge of the sections 15 and 21 have an offset. This leads to that in the FIG. 2 Left side edge of the portion 15 does not exactly on the connecting portion 23 rests and as a result, the corrugated box is "wrong" glued together. This is also a quality defect that is unacceptable. From G 92 15 136 a plant for the production of moldings from a deformable film material or the like, such as glassine, is known. It also includes a device for scoring this material.
  • a device for corrugating corrugated cardboard comprising a sonotrode and an anvil or a second sonotrode, wherein the sonotrode and the anvil or the second sonotrode are rotatably mounted.
  • the scattering of the values of so-called gap-tailing and fish-tailing which are a reference for the dimensional accuracy of the corrugated cardboard boxes and the angularity or parallelism of the edges of the corrugated cardboard boxes, improve significantly. This achieves a more consistent product quality and minimizes waste.
  • the crush pressure of angled paperboard blanks grooved with the device of the present invention is better than crates that have been grooved in a conventional manner.
  • a sonotrode within the meaning of the invention is the part of a Ultraschallällsch spaillons, with which coupled by an ultrasonic generator oscillations on the zu machining workpiece are introduced.
  • the counterpart to the sonotrode is the anvil.
  • the workpiece to be machined here corrugated cardboard
  • a second sonotrode of the (first) sonotrode can be arranged opposite as the "counterpart" to the sonotrode. This allows an even more intensive coupling of ultrasound.
  • the invention will be explained with reference to an embodiment with an anvil, especially in connection with the description of the figures.
  • the invention always comprises embodiments with two opposing sonotrodes.
  • a converter and / or a so-called booster can be provided.
  • the design of the ultrasonic device can be very similar or even equal to a conventional ultrasonic welding device.
  • the sonotrode and the anvil are rotatably mounted. Then, the cardboard can be moved through the device according to the invention or alternatively with a stationary cardboard, the device according to the invention can be moved relative to the cardboard.
  • the sonotrode and / or the anvil or the second sonotrode are rotationally drivable.
  • a feed device for either the sonotrode, the anvil, the second sonotrode and / or the corrugated board is present. It can also be provided to pass the corrugated cardboard with fixed sonotrode through the gap between sonotrode and anvil or second sonotrode, wherein the sonotrode or the anvil preferably has a wedge-like insertion bevel on an insertion side of the device.
  • the distance and / or contact pressure between the sonotrode and the anvil can be adjusted.
  • a spraying device is provided with the aid of which the cardboard can be moistened locally in the area of the later creasing line. It is sometimes advantageous if the spray device wets the cardboard on the side on which the sonotrode rests. Then, inter alia, the coupling of the ultrasound is improved in the cardboard. On the other hand, it has also proven advantageous in some applications to wet the sonotrode opposite side of the cardboard, because in this way the welding, the connection or the forming of the different layers of the Corrugated board is improved and there occur later in bending or folding the cardboard blanks tensile stresses. If the cardboard has been moistened in this area, the risk of the cardboard breaking when bent is reduced.
  • FIG. 3 schematically and greatly simplified is a section through an embodiment of a device according to the invention comprising a rotatably mounted about a rotation axis 20 sonotrode 25 and an about an axis of rotation 22 rotatably mounted anvil 27 shown.
  • the rotatably mounted sonotrode 25 has a circumferential groove 29, which is designed very similar to a conventional scoring tool. Between the groove 29 and the anvil 27 or a second sonotrode, not shown, a corrugated cardboard with the layers 3, 5 and 7 is passed and thereby compressed.
  • FIG. 4 the result of the ultrasonic supported corrugation of corrugated board 1 according to the invention with the clearly visible score line 13 is shown.
  • the groove 29 of the sonotrode 25 strikes a shaft at its highest point and presses there the corrugated cardboard 1 so far together that the upper layer 3 and the shaft 5 and the lower layer 7 get in direct contact with each other and by the inventive excitation Ultrasound also connect with each other. It has been found in practical experiments that with commercial corrugated cardboard, the inventive design of the scoring, or the score line 13, simple, reliable and durable. It is particularly advantageous that the crease line 13 is very deep without the individual layers of corrugated cardboard 1 are damaged.
  • the sonotrode 25 and the anvil 27 are not rotationally symmetrical, but designed as elongated components.
  • the groove 29 of this sonotrode 25 has exactly the geometry of the desired score line 13 and is pressed onto the corrugated cardboard 1 from above. This creates the crease line 13 over the entire length at the same time. A feed movement and device is not required.
  • FIG. 7 shows an oblique view of a device not according to the invention, wherein the sonotrode 25 and the anvil 27 as in FIGS. 5 and 6 not rotationally symmetrical, but also as elongated Components are formed.
  • the score line 13 is not generated at the same time over its entire length. Rather, the crease line 13 is formed by a feed movement of the cardboard 1 relative to the sonotrode 25 and the anvil 27 or by a feed movement of the sonotrode 25 and the anvil 27 relative to the cardboard 1. Since the sonotrode 25 is not rotationally symmetrical, it sees against the feed direction , which is indicated by an arrow 30, a wedge-like insertion bevel 32 of the groove 29, which facilitates insertion of the cardboard 1.
  • FIG. 8 shows a side view when looking in the direction of arrow 34 in FIG. 7 ,
  • the wedge-like insertion bevel 32 of the groove 29 can be clearly seen there, wherein the cardboard 1 is already partly inserted between the sonotrode 25 and the anvil 27.
  • the precision and process reliability of the device according to the invention or of the creasing line 13 produced by the method according to the invention is much better than with conventional mechanical creases of solid board or corrugated board and thereby allows the more precise production of paperboard products with smaller dimensional and angular deviations.
  • FIG. 9 different sonotrodes 25 and associated anvils 27 are shown. Sonotrodes 25 and anvils 27 differ in their shape of the grooves.
  • FIG. 7 far right, is the embodiment according to the Figures 3 and 5 shown.
  • FIG. 10 is very schematically illustrated a further embodiment of a device according to the invention.
  • the reference numeral 31 designates an ultrasound generator which supplies a booster 33 and finally the sonotrode 25 with ultrasound via a converter 32.
  • the converter 32, the booster 33 and the sonotrode 25 are rotatably mounted and are rotated by an electric motor 38 in rotation.
  • the bearing shown only schematically has the reference numeral 39.
  • the sonotrode 25 can be delivered in the direction of the anvil 27 or removed.
  • 27 load cells 42 are arranged below the anvil.
  • the sonotrode 25 and the anvil 27 are rotatably mounted.
  • the score line 13 results from the development of sonotrode 25 and anvil 27.
  • the invention can also be realized if Sonotrode 25 and anvil 27 are not rotatably mounted, but are fixed.

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

Claims (13)

  1. Dispositif destiné à rainurer du carton homogène ou du carton ondulé (1), comprenant une sonotrode (25) et une enclume (27), caractérisé en ce que la sonotrode (25) et l'enclume (27) ou respectivement une deuxième sonotrode sont supportées en rotation.
  2. Dispositif selon l'une des revendications 1, caractérisé en ce que la sonotrode (25) et/ou l'enclume (27) ou respectivement la deuxième sonotrode peut être entraînée en rotation.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'il existe un dispositif d'avance, en particulier pour le carton homogène ou le carton ondulé (1).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'une distance et/ou une force de pression entre la sonotrode (25) et l'enclume (27) ou respectivement la deuxième sonotrode est réglable.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'il existe un dispositif de pulvérisation pour l'humidification locale du carton ondulé (1).
  6. Procédé destiné au rainurage de carton homogène ou de carton ondulé, caractérisé par les étapes de procédé suivantes :
    - compression locale d'un carton homogène ou des différentes couches (3, 5, 7) d'un carton ondulé (1) entre une sonotrode (25) supportée en rotation et une enclume ou respectivement une deuxième sonotrode (27) supportée en rotation et
    - excitation de la zone compressée du carton homogène ou du carton ondulé (1) avec des ultrasons.
  7. Procédé selon la revendication 6, caractérisé en ce que la compression du carton homogène ou des différentes couches (3, 5, 7) du carton ondulé (1) et l'excitation de la zone compressée du carton homogène ou du carton ondulé (1) avec des ultrasons sont effectuées simultanément.
  8. Procédé selon la revendication 6 ou 7, caractérisé en ce que la compression du carton homogène ou des différentes couches (3, 5, 7) d'un carton ondulé (1) et l'excitation de la zone compressée du carton ondulé (1) avec des ultrasons sont effectuées avec les mêmes outils (25, 27).
  9. Procédé selon l'une des revendications 6 à 8, caractérisé en ce que le carton homogène ou le carton ondulé (1) est humidifié avant ou pendant la compression.
  10. Procédé selon la revendication 9, caractérisé en ce que le carton homogène ou le carton ondulé (1) est humidifié localement sur le côté sur lequel se trouve la sonotrode (25).
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce que le carton homogène ou le carton ondulé (1) est humidifié localement sur le côté opposé à la sonotrode (25).
  12. Procédé selon l'une des revendications 6 à 11, caractérisé en ce que le carton homogène ou le carton ondulé (1) est déplacé par rapport à la sonotrode (25) et/ou l'enclume (27) ou respectivement la deuxième sonotrode avant, pendant et/ou après l'excitation avec les ultrasons.
  13. Procédé selon l'une des revendications 6 à 12, caractérisé en ce que, dans le cas du carton homogène ou dans le cas du carton ondulé (1), il est réalisé avec une ondulation, deux ondulations ou plus de trois ondulations.
EP14180663.8A 2013-09-09 2014-08-12 Dispositif et procédé destiné à rainurer du carton ondulé ou du carton homogène Not-in-force EP2845724B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013217994 2013-09-09
DE102013218955 2013-09-20
DE102013223854.1A DE102013223854A1 (de) 2013-09-09 2013-11-21 Vorrichtung und Verfahren zum Rillen von Wellpappe und Vollpappe

Publications (2)

Publication Number Publication Date
EP2845724A1 EP2845724A1 (fr) 2015-03-11
EP2845724B1 true EP2845724B1 (fr) 2016-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14180663.8A Not-in-force EP2845724B1 (fr) 2013-09-09 2014-08-12 Dispositif et procédé destiné à rainurer du carton ondulé ou du carton homogène

Country Status (3)

Country Link
US (1) US20150068664A1 (fr)
EP (1) EP2845724B1 (fr)
DE (1) DE102013223854A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102016123374A1 (de) 2016-12-02 2018-06-07 Wilhelm B a h m ü l l e r Maschinenbau Präzisionswerkzeuge GmbH Vorrichtung und Verfahren zum Rillen von Wellpappe und Vollpappe

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DE102013103887A1 (de) * 2013-04-17 2014-10-23 Schunk Sonosystems Gmbh Ultraschallschweißvorrichtung
WO2016027498A1 (fr) * 2014-08-18 2016-02-25 ダイペックス株式会社 Élément d'entaillage à lignes droites, gabarit à lignes droites, et dispositif à lignes droites
JP2017028903A (ja) * 2015-07-24 2017-02-02 株式会社オートネットワーク技術研究所 電線外装体、ワイヤーハーネス、および罫線刃
DE202015006139U1 (de) 2015-08-31 2015-10-15 G. Kraft Maschinenbau Gmbh Vorrichtung zum Rillen, Perforieren, Schneiden und Ritzen von flächigen Gegenständen
DE102015011399B4 (de) 2015-08-31 2020-01-23 G. Kraft Maschinenbau Gmbh Vorrichtung und Verfahren zum Rillen, Perforieren, Schneiden und Ritzen von flächigen Elementen
DE102016100570A1 (de) * 2016-01-14 2017-07-20 Wilhelm Bahmüller Maschinenbau Präzisionswerkzeuge GmbH Verfahren und Vorrichtung zur Faltung von Wellpappe
DE102016114660A1 (de) * 2016-08-08 2018-02-08 Wilhelm B a h m ü l l e r Maschinenbau Präzisionswerkzeuge GmbH Verfahren und Vorrichtung zur Faltung von Wellpappe
JP6832133B2 (ja) * 2016-11-08 2021-02-24 三菱重工機械システム株式会社 シート折り畳み装置及び方法並びに製函機
CN107322985B (zh) * 2017-06-16 2023-07-14 宁夏夏进制箱包装有限公司 防爆裂的瓦楞纸双压线装置
DE102017117078B4 (de) * 2017-07-28 2019-06-13 Schunk Sonosystems Gmbh Sonotrode sowie Verfahren zur Beeinflussung des Schwingungsverhaltens einer Sonotrode
DE102017126303A1 (de) * 2017-11-09 2019-05-09 Herrmann Ultraschalltechnik Gmbh & Co. Kg Fühlerlehre sowie Verfahren zum parallelen Ausrichten der Siegelfläche einer Sonotrode mit der Siegelfläche eines Gegenwerkzeuges
DE102020123802A1 (de) 2020-09-11 2022-03-17 Ansgar Biestmann Verfahren zur Bearbeitung von Wellpappe

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DE102009002298A1 (de) * 2009-04-09 2010-10-14 Robert Bosch Gmbh Vorrichtung zum Bearbeiten eines Packstoffs mittels Ultraschall

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Publication number Priority date Publication date Assignee Title
DE102016123374A1 (de) 2016-12-02 2018-06-07 Wilhelm B a h m ü l l e r Maschinenbau Präzisionswerkzeuge GmbH Vorrichtung und Verfahren zum Rillen von Wellpappe und Vollpappe

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EP2845724A1 (fr) 2015-03-11
US20150068664A1 (en) 2015-03-12
DE102013223854A1 (de) 2015-03-12

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