EP3766682A1 - Füll- und polsterprodukt aus papier, herstellungsverfahren und maschine zur umwandlung von papier in ein füll-/polsterprodukt - Google Patents

Füll- und polsterprodukt aus papier, herstellungsverfahren und maschine zur umwandlung von papier in ein füll-/polsterprodukt Download PDF

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Publication number
EP3766682A1
EP3766682A1 EP20182127.9A EP20182127A EP3766682A1 EP 3766682 A1 EP3766682 A1 EP 3766682A1 EP 20182127 A EP20182127 A EP 20182127A EP 3766682 A1 EP3766682 A1 EP 3766682A1
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EP
European Patent Office
Prior art keywords
sheet
paper
crumpled
selon
production
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.)
Granted
Application number
EP20182127.9A
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English (en)
French (fr)
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EP3766682B1 (de
Inventor
Lucien Goy
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Individual
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Individual
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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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0043—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material
    • B31D5/0047—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material involving toothed wheels
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/006—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including controlled deformation of flat material, e.g. pleating, corrugating or embossing
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0017—Providing stock material in a particular form
    • B31D2205/0023—Providing stock material in a particular form as web from a roll
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0047—Feeding, guiding or shaping the material
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0064—Stabilizing the shape of the final product, e.g. by mechanical interlocking

Definitions

  • the present invention relates to a paper dunnage / cushioning product, a method for making a paper cushioning / dunnage product, and a device for making a cushioning / cushioning product and processing. of a method of manufacturing a dunnage / padding product.
  • cushioning / cushioning cushioning products can be made from materials based on bubble plastic film or filled with gas to form cushioning cushions, in plastic foam for example forming chips, or even paper which is coarsely crumpled.
  • Plastic foam chips as a dunnage / stuffing product can be replaced with potato and corn starch chips which are discarded by composting or by decomposition with water. But in some underprivileged countries these dunnage / stuffing chips are consumed and their use as a dunnage / stuffing product becomes prohibited.
  • the document DE29622895 describes an exemplary dunnage / cushioning product and a method of producing such a dunnage / cushioning product.
  • the documents EP0857106 , EP3493979 , or EP0679504 describe methods and devices for manufacturing dunnage / padding from a roll of paper forming a long web of paper, or from superimposing strips of paper, or pre-folded paper, requiring upstream paper preparation of its use.
  • Some dunnage / padding products are formed from strips of paper glued together in order to provide the dunnage / padding products with a three-dimensional structure, the glue making it possible to maintain the mechanical properties and stability of the dunnage products for wedging correctly the items in the packages.
  • the presence of the glue makes these wedging / padding products difficult to recycle, and therefore harmful to the environment.
  • feeding paper machines in roll form or in the form of folded paper strips forming a stack of sheets is not very easy in existing machines.
  • the aim of the invention is to provide a new dunnage / padding product having good mechanical properties and which is completely recyclable, a process specially designed for the manufacture of this dunnage / padding product and a conversion machine designed for placing. implementing this process.
  • the invention relates to a dunnage / padding product characterized in that it is formed from a substantially rectangular sheet material, the material being crumpled along a median and the crumpled material undergoing a pinch on either side of the median and then a twist transversely to this median in the vicinity of the pinch of at least a quarter of a turn to appear like a papillote.
  • the material can be paper, especially recycled paper.
  • the unstacking, crumpling and twisting steps of the process can follow one another so that during the process one pinched sheet may be in the twisting step while another sheet may be in the unstacking step.
  • the present invention also provides a converting machine for the manufacture of a dunnage / padding product, characterized in that it comprises a storage bin for stacked sheets of paper of substantially rectangular shape, an unstacker which feeds sheet by sheet into.
  • a certain direction of conveying a crumpling device comprising a toothed wheel arranged so as to crumple each sheet along its median in the conveying direction and a torsion system comprising at least two gripper-carrying cranks which are arranged to pinch the crumpled sheet of on either side of the wheel and which are arranged to twist the crumpled sheet transversely to the median of at least a quarter turn.
  • the dunnage / cushioning product is made from sheet material, preferably paper sheet, without time-consuming preparation before production. Stacked sheets of paper, arranged in a ready-to-use ream, can be installed directly in the storage bin.
  • any quality of paper can be used for the manufacture of the dunnage / padding product, whether it is recycled paper for example at 50%, 60%, 70% or whatever. or 100% recyclable “new” paper.
  • the wedging / padding product has a three-dimensional conformation with a crumpled central zone and non-crumpled edge zones forming like wings which can be orthogonal or even in opposition.
  • any basis weight of the paper can be used for the manufacture of the dunnage / padding product depending on the final size of the dunnage / padding product and / or the crush resistance necessary to obtain good protection. of an article to protect according to its size or weight.
  • the cushioning / cushioning product has improved three-dimensional support so that when inserted into the voids of a package around the article (s), their protection is enhanced by better resistance to crushing.
  • the holding of the wrinkling of the wedging / padding product on a median and the maintenance of the three-dimensional conformation of the papillote type during use are ensured by the twisting carried out on the product of wedging / padding.
  • the wedging / padding product according to the invention could also be inserted as the base layer of a package, prior to the introduction of the item (s) into the package, so as to receive the item (s), such as a damping cushion. for bottles for example.
  • the method of producing a paper dunnage / padding product is simpler to use and the converting machine which converts sheet material into a dunnage / padding product is of simplified structure, making it especially more compact than the machines currently on the market.
  • the present invention relates first of all to a wedging / padding product 1 having mechanical properties superior to those of the prior art, the purpose of which is to be introduced into a container, such as a package, in which is placed an item, so as to fill in the empty spaces in the package around the item, in order to act as a shock absorber to protect the item if the package is accidentally overturned for example.
  • FIG. 1 an example of a wedging / padding product 1 according to the invention is shown.
  • the dunnage / padding product 1 according to the invention is made from a substantially rectangular sheet material.
  • the sheet material is preferably a sheet of paper, preferably a rectangular sheet of paper 20 cm wide and 28 cm long.
  • the sheets 2 used for the manufacture of the dunnage / padding product 1 can be of different sizes, of different weights or thicknesses.
  • the sheets 2 of paper can be recycled or non-recycled paper.
  • a sheet 2 is first of all crumpled along a median M, here the largest median, so as to form a series of folds F that are substantially parallel and extending transversely to this median.
  • This crumpling of the sheet 2 allows to obtain a crumpled sheet 2 of three-dimensional conformation, with a specifically crumpled central zone Z and on either side of this crumpled central zone Z, partially crumpled edge zones B forming wings.
  • the crumpled sheet 2 is pinched on either side of the previously crumpled central zone Z along the middle line M.
  • the crumpled sheet 2 pinched undergoes a twist transversely to the median M, in the vicinity of the pinch, such as a piece of paper twisted in its middle to obtain a foil.
  • the applied twist is at least a quarter turn. It can be a half turn as illustrated on product 1 for wedging / padding the figure 1 .
  • This wedging / padding product 1 has two edge zones B which form wings which are here in opposition on either side of the crumpled central zone Z which has been subjected to a 180 ° twist. In the case of a quarter-turn twist, the wedging / padding product 1, not shown here, would have orthogonal edge areas B.
  • the angle of twist will be adapted so that the paper does not tear on the surface. level of the crumpled central zone Z on which this twisting takes place and that the wedging / padding product 1 has a three-dimensional conformation which has good mechanical properties for the intended use.
  • the present invention also relates to a production process for the manufacture of a paper dunnage / padding product 1, in which a stack of 2 substantially rectangular sheets of paper in a storage bin 3 is subjected to a step of unstacking sheet after sheet, so that a sheet 2 unstacked from the storage bin 3 is conveyed to a crumpling device 4 which crumples the sheet 2 on along a median M during its conveying, followed by a step of pinching the crumpled sheet on either side of the median followed by a mechanical twisting movement performed on the crumpled sheet 2 of paper, this twisting s 'performing transversely to the aforementioned large median M, in the vicinity of the pinching of the crumpled sheet 2, the twist being at least a quarter turn.
  • the unstacking, pinching and twisting steps of the method succeeding one another, a sheet could be in the twisting step while the following sheet could be in the unstacking step in direction of crumpling device 4.
  • the invention In order to manufacture a wedging / padding product 1, the invention relates to a converting machine which is illustrated according to two possible, non-limiting embodiments.
  • the first embodiment is shown in the figures accompanying the present invention, from figures 2A, 2B, 2C up to the figure 11 , the second embodiment being shown in the figures accompanying the present invention, from figures 12A, 12B, 12C until figures 22A, 22B .
  • the elements common to the two embodiments bear the same numerical references.
  • the conversion machine according to the invention is generally compact compared to the machines of the prior art.
  • the converting machine includes a storage 3 or store of sheet material i.e. a stack of sheets of paper, an unstacker 5 which feeds sheet by sheet a sheet crumpling device 4, a twisting system 6 with cranks 6A, 6B holder pliers, and a collecting tray 7 for the wedging / padding products 1 manufactured.
  • the dimensions of the storage bin 3 would therefore be 20.5 cm in width and 28.5 cm in length which is slightly smaller than a storage bin for A4 sheets.
  • the conversion machine according to the first embodiment illustrated in figure 2A is in the form of a chest, here similar to a cube, with at the back of this cube a removable door 8 (see figure 2B without the door 8), for example sliding, giving access to the storage bin 3 with a tray 9 which is loaded on the figure 2C in 2 stacked sheets of paper, here rectangular in shape.
  • a stack of sheets 2 of paper such as a ream of sheets of paper, can thus be loaded on the plate 9 of the storage bin 3 on which can be arranged in a known manner a level detector of the stack of sheets 2 of paper, so as to raise the plate 9, in use, as the storage bin 3 empties of the stacked sheets 2.
  • the figure 2C illustrates the conversion machine ready for use.
  • the unstacker 5 is arranged in the vicinity of the storage bin 3 so as to supply the machine with sheets, from the storage bin 3, sheet after sheet.
  • the unstacker 5 is shown here as an arrangement of parallel drive rollers, but could also be a sheet picking system by pinching.
  • Each unstacked sheet 2 is then driven, after another, by a conveying device 10, here with a drive roller, in a certain conveying direction illustrated by the arrow C towards the crumpling device 4.
  • the crumpling device 4 is shown here as a toothed wheel, with five parallel notches arranged at regular intervals on the circumference of the wheel as visible on the figure. figure 3A , the notches being oriented transversely, arrow T, to the conveying direction C.
  • This wheel is driven by a motor (not shown).
  • a sliding zone 11 for holding the sheet material during conveying and after crumpling can be arranged under the wheel or on either side of the wheel.
  • the torsion system 6 is here in the form of two cranks 6A, 6B, collet-holders, rotating coaxially, in the rest position on the figure 2C , parallel and arranged in the direction of conveying C.
  • the crank 6A carries a PA clamp at one end and the crank 6B carries a PB clamp at one end.
  • the two cranks 6A, 6B are in a position for receiving a crumpled unstacked sheet 2.
  • the cranks 6A, 6B are arranged in opposition, orthogonally to the conveying direction C, the grippers PA, PB are open at an angle of 90 °, with the opening in the direction of the toothed wheel .
  • the sliding zone 11 has notches to allow the passage of the clamps PA, PB during the rotation of the cranks 6A, 6B.
  • the toothed wheel is arranged centrally with respect to the center distance of the clamps PA, PB, and the distance between the clamps PA, PB is greater than the length of the notches of the toothed wheel.
  • the transverse length of the notches of the wheel corresponds substantially to the length of the crumpled central zone Z of the wedging / padding product 1. For example, for a sheet of paper material with a width of 21 cm, the length of the notches could be 20 mm and the distance between the clamps 30 mm.
  • control / command system (not shown) is arranged to govern the various stages of operation.
  • a sheet 2 of paper is unstacked from the storage bin 3 and is driven by the conveying device 10 to the crumpling device 4.
  • the sheet On the figures 4A and 4B the sheet is being crumpled, and at the output crumpling device 4 the crumpled sheet 2 is pushed in the direction of the grippers PA, PB in the reception position.
  • the crumpled part of the sheet 2 comes into contact with the clamps PA, PB so that on the figures 6A and 6B the crumpled central zone Z forms the kinds of folds F against the clamps PA, PB, the folds F settling as the sheet 2 is pushed on the clamps PA, PB.
  • the grippers PA, PB be arranged so that the sheet 2 of paper is pressed against an element of the gripper PA, PB which retreats as the crumpled sheet 2 advances towards the grippers PA, PB and that the folds are formed. This feature could even help the ejection of the wedging / padding product 1 described below.
  • the grippers PA, PB close on either side of the crumpled central zone Z so as to keep the sheet 2 crumpled.
  • the clamps PA, PB therefore perform a clamping of the sheet 2 on either side of the crumpled central zone Z.
  • the torsion movement induced by the torsion system 6 is illustrated on the figures 8A and 8B then on figures 9A and 9B on which the crank 6B carrying the gripper PB below the crumpled sheet 2 is movable and rotates by a certain angle to create the twisting effect while the crank 6A carrying the gripper PA above the crumpled sheet 2 remains fixed .
  • the mobile crank 6B has here turned 180 ° so that the edge zones B of the wedging / padding product 1 are in opposition.
  • the filling of the empty spaces around an article in a package by the wedging / padding products 1 could be done automatically.
  • the wedging / padding products 1, released by the grippers PA, PB could fall into a kind of silo, for example pyramidal or conical in shape. with an inclined plane facing downwards, a large open base through which the ready-to-use cushioning / padding products 1 would enter and a small base whose opening would be blocked by a removable cover so as to accumulate the products 1 of ready-to-use cushioning / padding in the silo.
  • the control system could induce the opening of the removable cover, above a package on a packaging line for example, so as to automate a wedging / padding process.
  • the converting machine includes storage bin 3 for sheet material, with storage bin 3 unloaded on the figure 12A and loaded in 2 sheets stacked on the figure 12B and 12C , the destacker 5 arranged in the vicinity of the storage tank 3, the conveying device 10, and the crumpling device 4.
  • the torsion system 66 is here in the form of a rotating arm in the form of an H with the vertical bar of the H forming an axis of rotation, the ends of which are each connected to two opposite partitions of the trunk and the horizontal bars of the H each carrying on either side of the horizontal bar one of the cranks 66A, 66B, 66C, 66D, so as to have on either side of the rotary arm two sets of two gripper-holder cranks with two first cranks 66A, 66B and two second cranks 66C, 66D.
  • the torsion system 66 is at rest, while on the figure 13 , the first two cranks 66A, 66B, of the torsion system are in the position for receiving a first crumpled sheet 2 with their PAA, PBB grippers open and the two second cranks 66C, 66D of the torsion system are in an inactive position with their PCC, PDD clamps closed.
  • the principle of operation of the converting machine according to the second embodiment for manufacturing a dunnage / cushioning product is as follows.
  • a first sheet 2 of paper unstacked from the storage bin 3, driven by the conveying device 10 is being crumpled, the crumpled part of the sheet 2 approaching the PAA, PBB grippers open from the first two cranks 66A, 66B, in the receiving position, the PCC, PDD clamps of the two second cranks 66C, 66D being closed.
  • the crumpled part of the first sheet 2 comes into contact with the grippers PAA, PBB of the first two cranks 66A, 66B, so that the crumpled central zone Z forms kinds of folds F against these grippers PAA, PBB.
  • the grippers PAA, PBB of the first two cranks 66A, 66B close on either side of the crumpled central zone Z so as to keep the sheet 2 pinched.
  • the two second cranks 66C, 66D not yet being used in this case.
  • the rotary arm tilts around its axis of rotation so that the two second cranks 66C, 66D face the crumpling device 4 on the figures 18A and 18B .
  • the first two cranks 66A, 66B perform a twisting movement similar to that described in the first embodiment, with the fixed crank 66A and the rotating crank 66B rotating by a twist angle of 90 ° between the figures 18A and 18B and the figures 19A and 19B , and a twist angle of 180 ° between the figures 18A and 18B and the figures 20A and 20B .
  • the converting machine according to the second embodiment makes it possible to increase the production rate of wedging / padding products 1 relative to the converting machine according to the first embodiment.
  • the dunnage / padding product could be customized. Advertisements could be printed on the paper sheet material, or the paper sheet material could bear the image of the sender of the package, prior to transformation into the dunnage / cushioning product according to the invention.

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EP20182127.9A 2019-07-17 2020-06-25 Füll- und polsterprodukt aus papier, herstellungsverfahren und maschine zur umwandlung von papier in ein füll-/polsterprodukt Active EP3766682B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1908073A FR3098755B1 (fr) 2019-07-17 2019-07-17 Produit de calage/rembourrage en papier, procédé de fabrication et machine de conversion de papier en produit de calage/rembourrage

Publications (2)

Publication Number Publication Date
EP3766682A1 true EP3766682A1 (de) 2021-01-20
EP3766682B1 EP3766682B1 (de) 2021-11-10

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EP20182127.9A Active EP3766682B1 (de) 2019-07-17 2020-06-25 Füll- und polsterprodukt aus papier, herstellungsverfahren und maschine zur umwandlung von papier in ein füll-/polsterprodukt

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EP (1) EP3766682B1 (de)
FR (1) FR3098755B1 (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311643A1 (de) * 1992-04-13 1993-10-14 Lico Stahl Und Kunststofftechn Verfahren und Vorrichtung zur Herstellung von Füllmaterial aus Vollpapp-Formteilen
EP0679504A1 (de) 1994-04-22 1995-11-02 Naturembal Verfahren und Vorrichtung zum Herstellen von Füllmaterial durch Zerknittern von Papier
DE19545809A1 (de) * 1995-12-08 1997-06-12 Stuewe Hans U Polsterkörper
DE29622895U1 (de) 1995-10-20 1997-07-17 Cahnbley, Ralf, 25474 Hasloh Polsterkörper und Vorrichtung zu seiner Herstellung
EP0857106A1 (de) 1995-10-16 1998-08-12 Ranpak Corp. Kompakte polsterumwandlungsmaschine und verfahren, das vorgefaltetes papier verwendet
US20110053743A1 (en) * 2009-08-28 2011-03-03 Pregis Innovative Packaging, Inc. Crumpling mechanism for creating dunnage
EP3493979A1 (de) 2016-08-03 2019-06-12 Storopack Hans Reichenecker GmbH Verfahren und vorrichtung zum herstellen eines polsterungserzeugnisses sowie polsterungserzeugnis

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4311643A1 (de) * 1992-04-13 1993-10-14 Lico Stahl Und Kunststofftechn Verfahren und Vorrichtung zur Herstellung von Füllmaterial aus Vollpapp-Formteilen
EP0679504A1 (de) 1994-04-22 1995-11-02 Naturembal Verfahren und Vorrichtung zum Herstellen von Füllmaterial durch Zerknittern von Papier
EP0857106A1 (de) 1995-10-16 1998-08-12 Ranpak Corp. Kompakte polsterumwandlungsmaschine und verfahren, das vorgefaltetes papier verwendet
DE29622895U1 (de) 1995-10-20 1997-07-17 Cahnbley, Ralf, 25474 Hasloh Polsterkörper und Vorrichtung zu seiner Herstellung
DE19545809A1 (de) * 1995-12-08 1997-06-12 Stuewe Hans U Polsterkörper
US20110053743A1 (en) * 2009-08-28 2011-03-03 Pregis Innovative Packaging, Inc. Crumpling mechanism for creating dunnage
EP3493979A1 (de) 2016-08-03 2019-06-12 Storopack Hans Reichenecker GmbH Verfahren und vorrichtung zum herstellen eines polsterungserzeugnisses sowie polsterungserzeugnis

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Publication number Publication date
FR3098755B1 (fr) 2021-06-25
EP3766682B1 (de) 2021-11-10
FR3098755A1 (fr) 2021-01-22

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