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WO2009090481A2 - Procédé et machine pour former des boîtes - Google Patents

Procédé et machine pour former des boîtes

Info

Publication number
WO2009090481A2
WO2009090481A2 PCT/IB2008/003553 IB2008003553W WO2009090481A2 WO 2009090481 A2 WO2009090481 A2 WO 2009090481A2 IB 2008003553 W IB2008003553 W IB 2008003553W WO 2009090481 A2 WO2009090481 A2 WO 2009090481A2
Authority
WO
WIPO (PCT)
Prior art keywords
box
free edges
lateral
bead
glue
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.)
Ceased
Application number
PCT/IB2008/003553
Other languages
English (en)
Other versions
WO2009090481A3 (fr
WO2009090481A4 (fr
Inventor
Gino Bassi
Gabriele Vassura
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.)
Emmeci SpA
Original Assignee
Emmeci SpA
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
Priority claimed from ITBO20070846 external-priority patent/ITBO20070846A1/it
Priority claimed from ITBO20080315 external-priority patent/ITBO20080315A1/it
Application filed by Emmeci SpA filed Critical Emmeci SpA
Priority to EP08870817.7A priority Critical patent/EP2227383B1/fr
Publication of WO2009090481A2 publication Critical patent/WO2009090481A2/fr
Publication of WO2009090481A3 publication Critical patent/WO2009090481A3/fr
Publication of WO2009090481A4 publication Critical patent/WO2009090481A4/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65D5/4279—Joints, seams, leakproof joints or corners, special connections between panels
    • 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
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/622—Applying glue on already formed boxes
    • 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
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/626—Arrangements for permitting the glue to set
    • 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
    • B31B50/74—Auxiliary operations
    • B31B50/742—Coating; Impregnating; Waterproofing; Decoating
    • B31B50/743—Coating or impregnating edges or corners

Definitions

  • the present invention relates to a process and a machine for forming boxes starting with an open paper or cardboard blank.
  • the present invention relates to a process and a machine for making boxes having any shape, polygonal or curved in which the open ends of a blank must be joined to each other to obtain a stable box shape.
  • Prior art systems for making boxes usually consist of machines which fold a paper or cardboard blank, drawing near each other the free edges of the blank to obtain the desired box shape.
  • the adhesive or heat-sealing paper which increases the thickness of some zones of the box, and which remains visible even after the formed box has been covered.
  • a second disadvantage is the need to apply a relatively high level of pressure on the strips of sealing paper applied on the edges to be closed, involving a relatively heavy structure for the machine supporting such equipment and a significant mechanical action on the material of which the box is made.
  • the technical purpose of the present invention is to propose a process and a machine which are free of the above-mentioned disadvantages.
  • Figure 1 shows the free edges of a blank joined with a process in accordance with the present invention, to form a corner of the box, wherein the gluing bead is positioned between end surfaces of the two edges;
  • Figure 2 shows the free edges of Figure 1, for forming a linear stretch of the box
  • Figure 3 shows the free edges of Figure 1, for forming a curved stretch of the box
  • Figure 3a shows the free edges of Figure 1, for forming a corner of the box with a rounded gluing bead
  • Figure 3b shows the free edges of Figure 1, for forming a corner of the box with gluing bead positioned between an end surface of one edge and a lateral " surface of the other;
  • Figures 4 to 6 are respectively a perspective view, a detail of the closing area, and a lateral view of a box having a curved base formed using a process in accordance with the invention;
  • Figure 7 illustrates the successive steps a) to e) of the process in accordance with the invention carried out by a machine for forming polygonal boxes
  • Figure 8 is a schematic top view of the heads for closing the open corners of a polygonal box in a machine in accordance with the invention
  • Figure 9 is a perspective view of the closing heads of Figure 8;
  • Figures 10 to 12 illustrate the series of steps of applying the glue, finishing, and final shaping of an open corner of a polygonal box closed with a process in accordance with the invention;
  • Figure 13 is a schematic view of the use of pressers in accordance with the invention for closing a box;
  • Figure 13a is a top view of a preferred embodiment of a presser of Figure 13;
  • Figure 14 is a detail of a preferred embodiment of a presser;
  • Figures 15a and 15b are respectively a plan view and a side view of a blank in accordance with the invention.
  • Figures 16a, 16b, 16c are respectively a view of a box formed with a blank according to Figure 15a positioned over a covering sheet, a side view of the covered box, and a top section detail of one corner of the covered box;
  • Figure 17 shows a detail of a box formed according to a preferred embodiment of the process in accordance with the invention.
  • FIGS 18 and 19 illustrate a preferred embodiment of the invention.
  • Figures 1 to 3 the free edges can be drawn near each other to form a corner 6 in contact (Figure 1) with the two edges forming an angle of amplitude (alpha), for example equal to 90° in the case of boxes having a rectangular base.
  • Figure 3 a shows the same corner configuration of the edges 2 with a rounded bead 3.
  • Figure 3b shows the same corner configuration of the edges 2 with a bead 3 formed between the end surface 5 of one edge 2 and a lateral portion of the adjacent edge
  • the free edges may have a straight geometry and may be drawn near each other at a predetermined distance (h) with the respective end surfaces 5 opposite each other ( Figure 2). Also, the free edges may have a curved geometry and may be drawn near each other at a predetermined average distance (h) with the respective end surfaces 5 substantially opposite each other.
  • the dimensions of the bead 3, and in particular the length h must be such that they allow sufficient flexibility in subsequent use of the box.
  • the dimension h of the bead 3 is between 2 and 5 mm.
  • the glue Once the glue has been distributed, it is allowed to cool until the free edges are stably joined together, or it is subjected to forced cooling for example using air jets directed onto the beads 3.
  • the process in accordance with the invention may involve feeding (a) blanks having a polygonal base 8 joined to a plurality of lateral faces 9.
  • the lateral faces can be folded by imparting to the box 15 a movement relative to the folders 18 so that the free edges of the faces 9 are brought into the configuration shown in Figure 1.
  • the distribution step (c) is preferably carried out by glue dispensing nozzles 11 positioned at the open corners of the box 15 and able to move relative to the box in the direction parallel with the corners 10.
  • a step of finishing the shape of the beads may preferably be carried out, for example using scrapers 16 having the shape to be given to the beads, followed by cooling with jets of air or nitrogen 14.
  • this step guarantees the perfect regularity of the walls of the finished box and the absence of thickened zones and shape defects. It will then also be possible to carry out a step of moving away the finished box 15, for example using a conveyor belt 17.
  • the blank is folded until the free edges 2 are drawn near and adjacent to each other to form a reciprocal gluing bead 3 with the distribution of a quantity of hot-melt glue intended to stably join the edges 2.
  • the free edges can be drawn near each other to form a corner 6 in contact ( Figure 1) with the two edges forming a predetermined angle of amplitude (alpha), for example equal to 90° in the case of boxes having a rectangular base.
  • the free edges may have a straight geometry and may be drawn near each other at a predetermined distance (h) with the respective end surfaces 5 opposite each other ( Figure 2).
  • the free edges may have a curved geometry and may be drawn near each other at a predetermined average distance (h) with the respective end surfaces 5 substantially opposite each other.
  • the dimensions of the bead 3, and in particular the length h must be such that they allow the necessary flexibility in subsequent use of the box.
  • the process in accordance with the invention may involve feeding (a) blanks having a polygonal base 8 joined to a plurality of lateral faces 9.
  • the lateral faces there is a step of folding (b) the lateral faces to form a polygonal box with a plurality of open corners 10 at the free edges of the faces.
  • the lateral faces can be folded by imparting to the box 15 a movement relative to the folders 18 so that the free edges of the faces 9 are brought into the configuration shown in Figure 1.
  • the distribution step (c) is preferably carried out by glue dispensing nozzles 11 positioned at the open corners of the box 15 and able to move relative to the box in the direction parallel with the corners 10.
  • a step of cooling with air jets 14 may preferably be carried out, then finishing the shape of the beads, for example using scrapers 16 having the shape to be given to the beads.
  • this step guarantees the perfect regularity of the walls of the finished box and the absence of thickened zones and shape defects.
  • pressers 20 are described which can be used instead of (or in addition to) the scrapers 16, which in a preferred embodiment of the invention consolidate box closing after glue application and contain the glue distributed.
  • the pressers 20 are shaped with a pressing surface 21 which forms an angle corresponding to the corner of the box to be closed, and they can move horizontally in alternate directions relative to the box.
  • the number and distribution of the pressers 20 depends on the number of box corners to be closed, similarly to the use of pressers used in "quadrangular" machines for seaming boxes with heat-sealing strips of the type well-known in the sector.
  • the pressers 20 in accordance with the invention can be used in the same machine in place of the pressers traditionally used to apply heat- sealing strips.
  • the pressers are not cooled but may be heated if necessary, and in place of one or more of the glue distribution nozzles a heat-sealing strip dispensing unit is removably applied.
  • the pressing surfaces 21 of the pressers 20 may advantageously have a predetermined shape, for example rounded, so as to give a desired shape to the glue bead.
  • the shaped pressers 20 form means 16 for finishing the shape of the gluing bead 3.
  • a pressing surface 21 having an angle ⁇ l slightly less than the angle ⁇ of the box corner to be closed allows the achievement of an effect of spreading a film of glue 24 on the adjacent sides of the box.
  • the film 24 gives greater strength to box closing, and does not cause thickened areas which have a negative impact on the appearance of the box.
  • Figure 17 illustrates a detail of a corner of a box closed by a film of glue 24 which partly covers the surfaces of the adjacent sides 25 and 26.
  • the action to contain and compress the glue applied during the pressure applied by the pressers 20 on the box allows the glue to partly penetrate along the contact surface between the sides 25 and 26. Consequently, to form a sufficiently stable glue bead there is no need for an intermediate area to be left between the two sides 25, 26 in which to distribute the glue. Instead the sides can be directly in contact with each other, the edge 27 of one side being abutted directly against the inner surface 28 of the adjacent side.
  • Figure 13 schematically illustrates a system for cooling the pressers 20, comprising a cold generating unit 24 thermally connected to the pressers 20 by lines 25 and which allows elimination of the use of separate cooling devices such as the air jets described above.
  • the step of distributing glue already described is followed by drawing the pressers near to the open corners of the box for a time long enough to cool the glue and consolidate box closing.
  • Figure 14 shows a preferred embodiment of a presser, having at the top an upper plate 22 fixed with removable means 23, and designed to contain at the top any glue which may leak out during the step of drawing near and pressing the pressers 20 on the box.
  • the advantages achieved are basically the fact that the box obtained in this way has a high level of regularity, since it is without additional sealing paper elements, yet it guarantees a strong mechanical seal and at the same time a high level of flexibility of the hot-melt glue gluing beads.
  • a cardboard blank 29 is illustrated for making packing boxes and which is designed to render the outside appearance of the covered box even more uniform.
  • the blank 29 has a base section 33 having a polygonal shape, for example square, although it could be triangular, pentagonal, hexagonal, octagonal or another shape, and a plurality of lateral sections 30 (forming the lateral faces 9 of the box 15) which are joined to the base by fold lines 34 in such a way as to be able to form the lateral walls of the box.
  • the process of folding the lateral sections 30 and forming the box S is not described in detail because it is not the subject matter of the invention.
  • At least one lateral section 30 has, on the outer surface at the lateral ends, lowered zones 31 obtained for example by compression of the cardboard of which the blank is made.
  • Figures 16a, 16b, 16c show a box S obtained by folding the blank 29 and positioned over ( Figure 16a) a glued covering sheet F whose shape matches that of the blank 29 and whose dimensions are slightly larger to allow the box to be completely covered and the sheet F to be tucked over the inner sides of the box.
  • prior art covering sheets F have on at least one side 32 excess end flaps L, over which once covering is complete (Figure 16b) the sides 32 for covering the adjacent lateral sections 30 of the box overlap ( Figure 16c).
  • the lowered zones 31 correspond to the area of the lateral sections 30 on which the end flap L is applied and they therefore compensate for the increase in thickness caused by overlapping the covering sheet.
  • a covered box covering which is completely uniform and regular.
  • a distribution of glue 330 (forming the bead 3) is applied, dispensed by means of an injection system 300 connected to the glue distribution area by a pipe 320 communicating with a hole 310 made through the presser 20.
  • the glue is injected when the presser 20 is resting against the corner to be closed, and a forming profile 350 (positioned inside the box, according to a technique known in the box forming sector) closes the inside of the distribution area 330.
  • the pressers 20 may advantageously be of the cooled type. Therefore, the present invention provides a machine for forming boxes starting with a flat paper or cardboard blank 1 with a polygonal base 8 joined to a plurality of lateral faces 9.
  • Said machine comprises, in combination:
  • - means 18 for folding the lateral faces relative to the base 8 to form a polygonal box 15 with a plurality of open corners 10 at the free edges of the faces; - means 11 for distributing a quantity of hot-melt glue 4 in a reciprocal gluing bead 3 at the open corners 10.
  • Said box can preferably move relative to the distribution means in a direction parallel with the corners 10.
  • the distribution means can move relative to the box in a direction parallel with the corners 10.
  • the present invention makes available a process for forming a box S starting with a flat paper or cardboard blank 1 having at least two free edges 2.
  • Said process comprises the following steps:
  • the process preferably also comprises the following steps: - preparation of the blank 29, before the folding step, in such a way that it comprises a base section 33 having a polygonal shape and a plurality of lateral sections 30 intended to constitute the lateral walls of the box, in which at least one lateral section 30 has, on the outer surface at its lateral ends, lowered zones 31 with reduced thickness; - a step of covering the box, after the cooling step, in which a covering sheet
  • the advantages obtained are basically the fact that the box obtained in this way has a high level of regularity, since it does not have raised, additional sealing paper elements. This regularity allows an extremely good appearance to be achieved once the box has been covered, and it also allows the use of thinner, less opaque coverings.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention concerne un procédé servant à former des boîtes à partir d'une découpe à plat (1) en papier ou en carton présentant au moins deux bords libres (2). Ce procédé comprend les étapes consistant à : plier la découpe jusqu'à ce que les bords libres (2) se rapprochent les uns des autres pour devenir adjacents entre eux et former un cordon de collage mutuel (3), distribuer une quantité de colle thermofusible (4) dans le cordon (3) et refroidir la colle thermofusible jusqu'à ce que les bords libres soient joints de manière stable.
PCT/IB2008/003553 2007-12-21 2008-12-19 Procédé et machine pour former des boîtes Ceased WO2009090481A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08870817.7A EP2227383B1 (fr) 2007-12-21 2008-12-19 Procédé et machine pour former des boîtes

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITBO20070846 ITBO20070846A1 (it) 2007-12-21 2007-12-21 Procedimento e macchina per la formazione di scatole.
ITBO2007A000846 2007-12-21
ITBO20080315 ITBO20080315A1 (it) 2008-05-21 2008-05-21 Procedimento e macchina per la formazione di scatole.
ITBO2008A000315 2008-05-21

Publications (3)

Publication Number Publication Date
WO2009090481A2 true WO2009090481A2 (fr) 2009-07-23
WO2009090481A3 WO2009090481A3 (fr) 2009-12-17
WO2009090481A4 WO2009090481A4 (fr) 2010-02-04

Family

ID=40627017

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/003553 Ceased WO2009090481A2 (fr) 2007-12-21 2008-12-19 Procédé et machine pour former des boîtes

Country Status (2)

Country Link
EP (1) EP2227383B1 (fr)
WO (1) WO2009090481A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103085324A (zh) * 2013-01-30 2013-05-08 东莞展能信息科技有限公司 多边形盒体成型粘接机及利用该粘接机的盒体成型方法
WO2013110986A1 (fr) 2012-01-25 2013-08-01 Emmeci S.P.A. Dispositif de collage pour machine de formation de boîtes et procédé de collage associé
CN104369423A (zh) * 2014-11-10 2015-02-25 东莞市力顺源机械有限公司 全自动喷胶贴角机及利用其进行盒体成型的方法
CN106112873A (zh) * 2016-07-27 2016-11-16 福建龙泰竹业股份有限公司 一种矩形框体快速组装设备
CN107150238A (zh) * 2017-06-16 2017-09-12 常州机电职业技术学院 紧凑型多工位气动工装
CN107379624A (zh) * 2017-06-21 2017-11-24 无锡威奥液压机电设备有限公司 一种气动贴角机
CN110774659A (zh) * 2019-10-23 2020-02-11 谢海丽 一种药品礼盒全自动包装生产线

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3104012A (en) * 1960-02-12 1963-09-17 Johnson & Johnson Contamination proof package
US3119540A (en) * 1960-05-04 1964-01-28 Johnson & Johnson Container
DE1611612A1 (de) * 1967-10-30 1971-01-14 Bahlsen Werner Verfahren zum Verbinden von Zuschnitteilen fuer Verpackungsbehaelter od.dgl.und nachdem Verfahren hergestellter Verpackungsbehaelter
GB2182913B (en) * 1985-11-19 1989-10-04 Tetra Pak Dev A pack for fluid media
US6029884A (en) * 1998-05-26 2000-02-29 Paul T. Trend Corporation Method for constructing a sturdy, light-tight package and a package thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013110986A1 (fr) 2012-01-25 2013-08-01 Emmeci S.P.A. Dispositif de collage pour machine de formation de boîtes et procédé de collage associé
EP3246154A1 (fr) 2012-01-25 2017-11-22 EMMECI S.p.A. Dispositif de collage pour une machine de formation de boîte et procédé de collage
EP3513960A1 (fr) 2012-01-25 2019-07-24 EMMECI S.p.A. Dispositif de collage pour machine de formation de boîtes et procédé de collage associé
EP4524072A2 (fr) 2012-01-25 2025-03-19 EMMECI S.p.A. Dispositif de collage pour une machine de formation de boîte et procédé de collage associé
CN103085324A (zh) * 2013-01-30 2013-05-08 东莞展能信息科技有限公司 多边形盒体成型粘接机及利用该粘接机的盒体成型方法
CN104369423A (zh) * 2014-11-10 2015-02-25 东莞市力顺源机械有限公司 全自动喷胶贴角机及利用其进行盒体成型的方法
CN106112873A (zh) * 2016-07-27 2016-11-16 福建龙泰竹业股份有限公司 一种矩形框体快速组装设备
CN107150238A (zh) * 2017-06-16 2017-09-12 常州机电职业技术学院 紧凑型多工位气动工装
CN107379624A (zh) * 2017-06-21 2017-11-24 无锡威奥液压机电设备有限公司 一种气动贴角机
CN107379624B (zh) * 2017-06-21 2019-09-13 无锡威奥液压机电设备有限公司 一种气动贴角机
CN110774659A (zh) * 2019-10-23 2020-02-11 谢海丽 一种药品礼盒全自动包装生产线
CN110774659B (zh) * 2019-10-23 2021-03-30 重庆市科立印务有限公司 一种药品礼盒全自动包装生产线

Also Published As

Publication number Publication date
EP2227383A2 (fr) 2010-09-15
EP2227383B1 (fr) 2017-08-16
WO2009090481A3 (fr) 2009-12-17
WO2009090481A4 (fr) 2010-02-04

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