EP2860024A1 - Découpe de carton ondulé comprenant une ligne de pliage double perforée au laser et procédé de coupage laser d'un tel découpe - Google Patents

Découpe de carton ondulé comprenant une ligne de pliage double perforée au laser et procédé de coupage laser d'un tel découpe Download PDF

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Publication number
EP2860024A1
EP2860024A1 EP20130187709 EP13187709A EP2860024A1 EP 2860024 A1 EP2860024 A1 EP 2860024A1 EP 20130187709 EP20130187709 EP 20130187709 EP 13187709 A EP13187709 A EP 13187709A EP 2860024 A1 EP2860024 A1 EP 2860024A1
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EP
European Patent Office
Prior art keywords
blank
perforation
laser
cut
less
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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Application number
EP20130187709
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German (de)
English (en)
Inventor
Carl Ingolf Lange
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to EP20130187709 priority Critical patent/EP2860024A1/fr
Publication of EP2860024A1 publication Critical patent/EP2860024A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/4266—Folding lines, score lines, crease lines
    • 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
    • B31B50/26—Folding sheets, blanks or webs

Definitions

  • the present invention relates to a blank made of cardboard or paperboard, in particular of corrugated cardboard, with at least one row of laser-cut perforation patterns defining a fold line.
  • Blanks made of corrugated cardboard are known to have creases on the back. It is folded in the opposite direction, ie, the grooving is last in the fold, which often kinks the material only by 90 °.
  • corrugated cardboard is not grooved, but perforated on one side (to about center of material) to the same vulnerability and To achieve tension, which facilitates the folding and clearly positioned.
  • perforations for example, a series of laser-cut S-shaped perforation patterns with a cutting width of at least 2 mm are known, which form a 90 ° fold line, but due to their cutting width impair the stability and the surface tension of the blank. A 180 ° fold line using such a series of perforations would require such large cutting widths that the blank is no longer stable.
  • Folding boxes are industrially prefabricated boxes that are delivered in a collapsed condition from the manufacturer to the processing companies, where they can be unfolded into the box with simple hand movements or by machine.
  • the carton is made from a flat blank and has at least one 180 ° crease to fold the blank 180 ° into a flat carton with superimposed wall sections.
  • the average width of the laser-cut perforation is less than about 0.5 mm, preferably less than about 0.2 mm, more preferably equal to about 0.1 mm or less.
  • the juxtaposed perforation patterns together form a longitudinal weakening line (fold line) which facilitates the folding of the blank and clearly positions it.
  • the laser-cut perforation pattern is a herringbone perforation, an S-perforation, an X-perforation or a 0-perforation.
  • the perforation patterns can either only on one side of the blank, in particular to about the center of the material of the blank, or throughout the entire Thickness of the blank to be cut.
  • the series of laser-cut perforation patterns is flanked on one or both sides by a laser-cut perforation line which runs parallel to the row of perforations and whose cutting width is less than approximately 0.5 mm, preferably less than approximately 0.2 mm, particularly preferably approximately 0.1 mm or less.
  • This measure has the advantage that the material deformations occurring during folding remain limited by the flanking perforation lines to the area lying between them.
  • At least two parallel rows (“double fold line") of laser-cut perforation patterns are provided whose cutting width is less than about 0.5 mm, preferably less than about 0.2 mm, particularly preferably equal to about 0.1 mm or less.
  • the two parallel rows of perforations are spaced from one another by at most twice the thickness of the blank, in particular by at most the thickness of the blank.
  • the invention also relates to the folding box produced from the blank according to the invention, wherein the blank is folded at each of the at least two parallel rows of perforations by 90 °.
  • the two wall sections of the folding box which are bent over a total of 180 ° on the at least two parallel rows of perforations bear on one another in order to form a flat box as flat as possible.
  • the invention also relates to a method for producing the blank according to the invention, wherein according to the invention the perforation patterns and perforation lines are cut into the blank either successively with the same laser beam or in parallel with a plurality of laser beams.
  • Corrugated cardboard folding blank 1 cut out in sections has two parallel rows 2 of laser-cut perforation patterns 3 lined up one behind the other.
  • Each of the two rows 2 of laser-cut perforation patterns 3 is flanked on both sides by laser-cut perforation lines 4 , which may be formed, for example, as a bar perforation.
  • the blank 1 is formed, for example, from two-walled corrugated board and accordingly has an outer ceiling 5a, an upper wave path 5b , an intermediate ceiling 5c , a lower wave path 5d and an inner ceiling 5e .
  • the thickness of the blank is denoted by D and is for example 5 mm.
  • FIGS. 3a to 3d different variants of the perforation pattern 3 are shown, namely a herringbone perforation pattern ( Fig. 3a ), an S-shaped perforation pattern ( Fig. 3b ), an X-shaped perforation pattern ( Fig. 3c ) and a 0-shaped perforation pattern ( Fig. 3d ).
  • identical perforation patterns 3 are cut at a distance a of approximately 1-2 mm into the inner cover 5e and into the lower wave path 5d, so that they extend on one side to about the middle of the blank 1.
  • the juxtaposed perforation pattern 3 together form a longitudinal weakening line (fold line) 6 , which facilitates the folding of the blank 1 and clearly positioned.
  • This fold line 6 runs at the herringbone perforation pattern of Fig. 3a through the burr tips, the S-shaped perforation pattern of Fig. 3b through the middle sections, the X-shaped perforation pattern of Fig. 3c through the respective intersection points and the 0-shaped perforation pattern of Fig. 3d through the connection points.
  • the width B of the perforation 3 across the fold line 6 is about 3 mm and is chosen so that the blank 1 can be folded at the perforation 3 by 90 °.
  • the cutting width b of the laser-cut perforation pattern 3 and the flanking perforation lines 4 is only about 0.1-0.2 mm (or even less) and is thus smaller by more than an order of magnitude than the thickness D of the blank 1.
  • the in the blank 1 laser-cut perforations 3, 4 are visible only as fine lines and affect due to their small cutting width neither the stability, the haptics nor the surface tension of the blank. 1
  • Fig. 4 shows a detail of the folding box 10 formed from the blank 1, wherein the two rows of perforations 2 on the blank 1 are spaced from each other by the blank thickness D (or less).
  • the blank 1 is folded at the two parallel rows of perforations 2 in each case by 90 ° around the two fold lines 6, so that a flat carton 10 with two total of 180 ° bent wall sections 11 results, which either rest against each other or only slightly, so by less as the blank thickness D, are spaced from each other.
  • the inner blanket 5e and the lower corrugated web 5d yield inwardly due to the perforation patterns 3 and are deformed, with the flanking perforation lines 4 limiting the deformation to the area therebetween.
  • the perforation pattern 3 and the flanking perforation lines 4 can also be cut continuously over the entire thickness D of the blank 1.
  • the two parallel rows of perforations 2 can also be spaced apart from one another by more than the blank thickness D, but then the two wall sections 11 bent over by 180 ° no longer rest on one another.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Cartons (AREA)
EP20130187709 2013-10-08 2013-10-08 Découpe de carton ondulé comprenant une ligne de pliage double perforée au laser et procédé de coupage laser d'un tel découpe Withdrawn EP2860024A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20130187709 EP2860024A1 (fr) 2013-10-08 2013-10-08 Découpe de carton ondulé comprenant une ligne de pliage double perforée au laser et procédé de coupage laser d'un tel découpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20130187709 EP2860024A1 (fr) 2013-10-08 2013-10-08 Découpe de carton ondulé comprenant une ligne de pliage double perforée au laser et procédé de coupage laser d'un tel découpe

Publications (1)

Publication Number Publication Date
EP2860024A1 true EP2860024A1 (fr) 2015-04-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20130187709 Withdrawn EP2860024A1 (fr) 2013-10-08 2013-10-08 Découpe de carton ondulé comprenant une ligne de pliage double perforée au laser et procédé de coupage laser d'un tel découpe

Country Status (1)

Country Link
EP (1) EP2860024A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105082615A (zh) * 2015-07-14 2015-11-25 苏州太平洋印务有限公司 采用全自动糊盒机对双瓦瓦楞纸箱进行自动糊盒方法
RU2760053C2 (ru) * 2017-08-18 2021-11-22 Майр-Мельнхоф Картон Аг Раскройная заготовка, изготовленная из нее трехмерная структура и складная коробка
WO2022008921A1 (fr) * 2020-07-09 2022-01-13 British American Tobacco (Investments) Limited Emballage pour produits consommables
EP4400298A1 (fr) 2022-12-21 2024-07-17 SEI S.p.A. Procédé et machine de formation d'un pli sur un article en papier et article en papier pourvu d'un pli

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029496A1 (fr) * 1997-12-12 1999-06-17 Karl Marbach Gmbh & Co. Procede de production de decoupes pourvues de lignes de pliage
DE20010593U1 (de) * 2000-06-14 2000-08-17 Karl Marbach GmbH & Co. KG, 74080 Heilbronn Faltbarer Zuschnitt aus Wellpappe
US20050014621A1 (en) * 2003-07-15 2005-01-20 Mcclure Jack A. Method of reducing folding resistance and correcting score line misregister and product of the method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999029496A1 (fr) * 1997-12-12 1999-06-17 Karl Marbach Gmbh & Co. Procede de production de decoupes pourvues de lignes de pliage
DE20010593U1 (de) * 2000-06-14 2000-08-17 Karl Marbach GmbH & Co. KG, 74080 Heilbronn Faltbarer Zuschnitt aus Wellpappe
US20050014621A1 (en) * 2003-07-15 2005-01-20 Mcclure Jack A. Method of reducing folding resistance and correcting score line misregister and product of the method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105082615A (zh) * 2015-07-14 2015-11-25 苏州太平洋印务有限公司 采用全自动糊盒机对双瓦瓦楞纸箱进行自动糊盒方法
CN105082615B (zh) * 2015-07-14 2017-05-24 苏州太平洋印务有限公司 采用全自动糊盒机对双瓦瓦楞纸箱进行自动糊盒方法
RU2760053C2 (ru) * 2017-08-18 2021-11-22 Майр-Мельнхоф Картон Аг Раскройная заготовка, изготовленная из нее трехмерная структура и складная коробка
US11866235B2 (en) 2017-08-18 2024-01-09 Mayr-Melnhof Karton Ag Blank, three-dimensional structure produced therefrom, and folding box
WO2022008921A1 (fr) * 2020-07-09 2022-01-13 British American Tobacco (Investments) Limited Emballage pour produits consommables
EP4400298A1 (fr) 2022-12-21 2024-07-17 SEI S.p.A. Procédé et machine de formation d'un pli sur un article en papier et article en papier pourvu d'un pli

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