EP2199215A2 - Machine d'emballage extensible et procédé d'emballage extensible - Google Patents

Machine d'emballage extensible et procédé d'emballage extensible Download PDF

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Publication number
EP2199215A2
EP2199215A2 EP20090382050 EP09382050A EP2199215A2 EP 2199215 A2 EP2199215 A2 EP 2199215A2 EP 20090382050 EP20090382050 EP 20090382050 EP 09382050 A EP09382050 A EP 09382050A EP 2199215 A2 EP2199215 A2 EP 2199215A2
Authority
EP
European Patent Office
Prior art keywords
stretch wrapping
extendable sheet
extendable
sheet
wrapping machine
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.)
Withdrawn
Application number
EP20090382050
Other languages
German (de)
English (en)
Other versions
EP2199215A3 (fr
Inventor
Xavier Arderiu Cabau
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.)
Tecnicas Mecanicas Ilerdenses SL
Original Assignee
Tecnicas Mecanicas Ilerdenses SL
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 Tecnicas Mecanicas Ilerdenses SL filed Critical Tecnicas Mecanicas Ilerdenses SL
Publication of EP2199215A2 publication Critical patent/EP2199215A2/fr
Publication of EP2199215A3 publication Critical patent/EP2199215A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/02—Packaging agricultural or horticultural products
    • B65B25/04—Packaging fruit or vegetables
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/006—Helical strip wrapping combined with roping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/04—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated
    • B65B11/045—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated by rotating platforms supporting the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/58—Applying two or more wrappers, e.g. in succession
    • B65B11/585—Applying two or more wrappers, e.g. in succession to stacked articles, e.g. pallettised loads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B49/00—Devices for folding or bending wrappers around contents
    • B65B49/16—Pneumatic means, e.g. air jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B61/00—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages
    • B65B61/04—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages
    • B65B61/06—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting
    • B65B61/10—Auxiliary devices, not otherwise provided for, for operating on sheets, blanks, webs, binding material, containers or packages for severing webs, or for separating joined packages by cutting using heated wires or cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/02—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders
    • B65B11/025—Wrapping articles or quantities of material, without changing their position during the wrapping operation, e.g. in moulds with hinged folders by webs revolving around stationary articles

Definitions

  • the present invention belongs to the field of stretch wrapping machines and of methods for stretch wrapping a palletized load. More specifically, it relates to a stretch wrapping machine capable of stretch wrapping products, such as potatoes, onions or other vegetables and/or tubers, which must breathe during the storage or transport process on the pallet by means of the combined use of an extendable material such as raffia and a non-extendable material such as paper.
  • the process of stretch wrapping a palletized load is known in the state of the art.
  • the load is typically deposited on pallets for the purpose of more easily moving them with machinery designed for such purpose. Given the height that the load on the pallet reaches and the vibrations or blows the pallet may be exposed to, it is necessary to stretch wrap the load, i.e., providing it with a wrapping which groups and binds the load together and with the pallet.
  • the invention in a first aspect, relates to a stretch wrapping machine capable of stretch wrapping products such that the respiration of said products is possible.
  • the stretch wrapping machine of the invention comprises a rotating base configured to support a palletized load and a fixed column next to the rotating base comprising a first reel of an extendable sheet, said first reel being movable along said column.
  • the invention will be described such that it is the base which rotates, the column remaining fixed, it also being possible for the column to rotate around the pallet while the pallet remains fixed on the base.
  • the first reel will travel the entire height of the load as it covers the load with the extendable sheet.
  • Extendable sheet shall be understood throughout the present invention as a sheet capable of being subjected to a certain stretching without the sheet tearing. Likewise, the sheet must allow the load to breathe.
  • the material of said extendable layer could be, for example, a woven polypropylene or a polyethylene mesh, generically referred to throughout the invention as raffia.
  • the column of the stretch wrapping machine additionally comprises a second reel of a non-extendable sheet.
  • the second reel can move along the column.
  • non-extendable sheet will be understood as a sheet which cannot be pulled on without tearing, which cannot be heat-welded and which must additionally protect the load from ultraviolet rays. Paper can be a possible material for making said non-extendable sheet.
  • the non-extendable sheet could be a complex formed by several materials, all of which comply with the conditions discussed in this paragraph.
  • the load stretch wrapped with the stretch wrapping machine described above can breathe given that the extendable sheet allows the load to breathe, additionally having protection against ultraviolet rays as a result of the non-extendable sheet.
  • the two previously discussed reels can be arranged at the same height of the column, such that both reels move together, whereby the sheets which are unwound will cover the same area of the load.
  • the stretch wrapping can be done directly since both sheets are arranged at the same height.
  • cutting means for both the non-extendable sheet and for the extendable sheet.
  • said cutting means could be a blade.
  • the stretch wrapping machine can comprise a blowing device (9) configured to provide constant airflow so that the extendable reel and the non-extendable reel remain in contact during the stretch wrapping. Therefore, if the stretch wrapping is first done with the extendable sheet and then the non-extendable sheet is added, it will not be necessary to have any additional element so that both sheets stretch wrap the load simultaneously because the airflow will secure the contact between both sheets during the entire process, from start to finish.
  • a blowing device (9) configured to provide constant airflow so that the extendable reel and the non-extendable reel remain in contact during the stretch wrapping. Therefore, if the stretch wrapping is first done with the extendable sheet and then the non-extendable sheet is added, it will not be necessary to have any additional element so that both sheets stretch wrap the load simultaneously because the airflow will secure the contact between both sheets during the entire process, from start to finish.
  • the stretch wrapping machine may comprise at least one movable roller in the direction of the column. Said at least one movable roller will work such that with its movement it will group the extendable sheet forming a cord.
  • the stretch wrapping machine may have a single roller, therefore said roller must push one end of the extendable sheet towards its other end to form the cord, or it may have two, in which case the first roller may act as a stop whereas the second one pushes the sheet against the first one, the cord thus being formed.
  • the position in which the cord will be arranged will therefore depend on the position in which the roller ends up in the event that the stretch wrapping machine has a single roller, or the one occupied by the roller acting as a stop in the case of having two stops.
  • the stretch wrapping machine may comprise separating means for separating the cord from the palletized load.
  • Said separating means could be a flat bar configured to be located close to the palletized load at a pre-defined height.
  • the cord formed by the extendable sheet could be wrapped several times around said flat bar.
  • There can also be holding means (13) for holding the cord for example a clamp, such that the cord can be held in the clamp. Therefore, the ending of the stretch wrapping could be done more comfortably having the cord separated in a first turn and held by the clamp in a second turn.
  • all that is left to do is weld two of these which are grouped in the aforementioned sheet, typically the first one which is grouped and the second one held by the clamp, cutting the excess cord, which could be used, since it is held in the clamp, to begin stretch wrapping a new pallet.
  • the welding can be performed, for example, with a pulse welding electrode.
  • the stretch wrapping machine can have a synchronizer to synchronize the extendable sheet feed, the non-extendable sheet feed and the rotation of the rotating base, such that the amount of extendable sheet and of non-extendable sheet does not exceed the calculated necessary amount taking into account the rotation speed of the rotating base.
  • the present invention relates to a method for stretch wrapping a palletized load comprising a first step of placing the palletized load on a rotating base.
  • the method additionally comprises a step of stretch wrapping the palletized load with an extendable sheet, wrapping the palletized load with said extendable sheet, and another step of jointly stretch wrapping the palletized load with a non-extendable sheet on the inside and with the extendable sheet on the outside, wrapping the palletized load with the non-extendable sheet and the extendable sheet. Therefore, the load thus stretch wrapped will be transpirable as a result of the extendable sheet, and it will furthermore be protected against ultraviolet rays as a result of the non-extendable sheet.
  • the method described above can include an additional step in which the non-extendable sheet is cut and the stretch wrapping of the load ends with the extendable sheet, wrapping the palletized load with said extendable sheet.
  • the extendable and non-extendable sheets can be unwound from reels located at the same height in a fixed column located next to the rotating platform.
  • a blowing device can provide constant airflow so that the extendable reel and the non-extendable reel remain in contact, without it being necessary to have any mechanism for achieving a double-sheet stretch wrapping, one of them, the innermost one, being non-extendable sheet, and the outermost being extendable sheet.
  • the extendable sheet could be converted into a cord at a pre-defined height.
  • Said cord can subsequently be separated after a stretch wrapping cycle, defined by a complete turn of the pallet, to weld the separated cord with the same separated cord formed after the new stretch wrapping cycle. Once the welding is done, the cord, and therefore the extendable sheet, can be cut.
  • Figure 1 shows a stretch wrapping machine according to the present invention. Said figure does not show the pallet or palletized load which can be stretch wrapped by the invention, which load must be located on the rotating base (1) of the stretch wrapping machine.
  • the rotating base (1) is located in the vicinity of a column (2) in which there are arranged, at the same height, two reels (3, 4), one with an extendable sheet (5) and the other with a non-extendable sheet (6).
  • a top view of said reels (3, 4) can be seen in Figure 2 .
  • the non-extendable sheet (6) is a sheet of paper (6), in the same way that the extendable sheet (5) will be a sheet of raffia (5), the palletized load being a pallet of bags of potatoes.
  • the stretch wrapping machine of the invention could alternatively be applied to bags of onions or any other type of vegetables or tubers with similar preservation requirements.
  • the pallet with bags of potatoes will be stretch wrapped following a conventional method with raffia (5).
  • the bags of potatoes can breathe with this layer, their preservation conditions thus being improved.
  • the layer of raffia (5) also allows the stretch wrapping of the bags because it has the necessary consistency to prevent the bags from moving from the position defined in the process for loading the pallet.
  • the reel (3) of raffia (5) will be the one farthest away from the rotating base (1), as will be discussed below.
  • the present invention provides protection against ultraviolet rays as a result of a layer of paper (6).
  • Said paper (6) is applied in the method for stretch wrapping as follows.
  • a blowing device (9) provides constant airflow in order for the paper (6) to act together with the raffia (5) such that the paper (6) is fixed to the raffia (5) by the air stream.
  • the arrangement of said blowing device (9) can be seen in Figure 2 . In this second sweeping that is performed, the raffia (5) will thus continue to be on the outside of the load, whereas the paper (6) will be located between the outside raffia (5) and the first layer of raffia (5).
  • rollers will encircle the raffia (5), one at the top and one at the bottom, forcing it to form a highly resistant plastic cord (10), the rollers being in a predetermined position when said cord (10) is formed, in the case of the present embodiment, the rollers being in the bottom area of the load, approximately in the top area of the pallet on which the load is supported.
  • the raffia (5) is made of woven polypropylene, this material cannot easily be welded. Therefore, in order to perform the welding described in the preceding paragraph, it is necessary to form the described cord (10). Grouping the raffia in a cord (10) will thus make it possible to weld such cord.
  • the two rollers will be arranged immediately after the exit from the reel (3) of raffia (5).
  • the cord (10) will always thus be located around the load at the same point.
  • separating means (11) formed by a flat bar (11) will be located in the path of cord (10), such that the cord (10) will be separated from the load at this point.
  • another flat bar could be located at the same height of the flat bar (11) which forms part of a clamp (13), such that the cord (10) can be held by said clamp (13) in the next pass of the cord (10).
  • Figure 3 depicts the moment prior to when the clamp (13) grabs the cord (10).
  • the cord (10) is separated by the flat bar (11), whereas the second flat bar, the one forming part of the clamp (13), waits for the next pass to hold the cord (10). The welding of the cord (10) and the cutting thereof is thus made easier.
  • Figure 4 shows the clamp (13) as well as the cutting tool (7) and welding tool (12).
  • the closeness of the separating flat bar (11) and the clamp (13) makes it easier to weld the cord (10) between the pass of the separated cord (10) and the second pass.
  • the raffia (5) can be cut using a cutting resistance (7), the end at which the stretch wrapping of the next pallet of bags of potatoes will begin then being in the clamp (13).
  • the clamp (13) is vertically and horizontally movable.
  • the process for stretch wrapping the palletized load can thus begin at an intermediate height, far from both the base and the top end of the load.
  • the initial end of both the paper and the raffia (5), used when the stretch wrapping begins will be on the inside of the actual stretch wrapping, not being accessible from the outside of such stretch wrapping, thus making it impossible for the stretch wrapping to come undone.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Basic Packing Technique (AREA)
EP09382050.4A 2008-12-09 2009-04-15 Machine d'emballage extensible et procédé d'emballage extensible Withdrawn EP2199215A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200803481A ES2361985B1 (es) 2008-12-09 2008-12-09 Enfardadora y procedimiento para enfardar.

Publications (2)

Publication Number Publication Date
EP2199215A2 true EP2199215A2 (fr) 2010-06-23
EP2199215A3 EP2199215A3 (fr) 2015-05-27

Family

ID=42061150

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09382050.4A Withdrawn EP2199215A3 (fr) 2008-12-09 2009-04-15 Machine d'emballage extensible et procédé d'emballage extensible

Country Status (2)

Country Link
EP (1) EP2199215A3 (fr)
ES (1) ES2361985B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104890912A (zh) * 2015-06-04 2015-09-09 佛山市日丰企业有限公司 包膜机及包膜方法
EP2835314B1 (fr) * 2013-08-06 2019-07-17 Ontex BVBA Procédé d'emballage améliorés
CN111392090A (zh) * 2020-05-12 2020-07-10 宣城立创自动化科技有限公司 一种适用于机床的辅助工具及其应用方法
US20210107757A1 (en) * 2018-05-28 2021-04-15 Aetna Group S.P.A. Machine for testing extensible plastic films for packaging

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601668A1 (de) 1996-01-18 1997-07-24 Dieter Scheich Folienwickelmaschine zum Umwickeln beladener Paletten
EP1520784A1 (fr) 2003-09-30 2005-04-06 AETNA GROUP S.p.A. Dispositif pour banderoler des produits palettisés
US20060260279A1 (en) 2005-05-17 2006-11-23 Arpac L.P. Wrapping Apparatus for Wrapping Load with Flexible Film and Banner Film

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
FR2647082B3 (fr) * 1989-05-19 1991-11-29 Albert Plastiques Dispositif pour banderoler un complexe film etirable - bande d'identification
US5088270A (en) * 1990-12-31 1992-02-18 Mima Incorporated Film-tail heat sealing system
JPH04327108A (ja) * 1991-04-22 1992-11-16 Sekisui Jushi Co Ltd ストレッチ包装方法
DE4121573A1 (de) * 1991-06-29 1993-01-07 Walter Wacker Vorrichtung zur herstellung einer umhuellung
FR2696713A1 (fr) * 1992-10-08 1994-04-15 Saint Gobain Isover Procédé et dispositif pour le conditionnement de produits isolants compressibles.
US6195968B1 (en) * 1999-07-08 2001-03-06 Wulftec International Inc. Apparatus for wrapping a load
US20040026292A1 (en) * 2000-12-15 2004-02-12 Ours David C. Transportable container for bulk goods and method for forming the container
US6874297B2 (en) * 2002-09-09 2005-04-05 Arpac, L.P. Stretch wrap apparatus
EP1415913A1 (fr) * 2002-10-30 2004-05-06 Dnc, S.A. Machine et procédé pour envelopper des palettes par un film plastique
ES2301314B1 (es) * 2005-11-23 2009-05-01 Diseños Integrales Del Embalaje, S.A. Enfardadora de alta velocidad.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19601668A1 (de) 1996-01-18 1997-07-24 Dieter Scheich Folienwickelmaschine zum Umwickeln beladener Paletten
EP1520784A1 (fr) 2003-09-30 2005-04-06 AETNA GROUP S.p.A. Dispositif pour banderoler des produits palettisés
US20060260279A1 (en) 2005-05-17 2006-11-23 Arpac L.P. Wrapping Apparatus for Wrapping Load with Flexible Film and Banner Film

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2835314B1 (fr) * 2013-08-06 2019-07-17 Ontex BVBA Procédé d'emballage améliorés
CN104890912A (zh) * 2015-06-04 2015-09-09 佛山市日丰企业有限公司 包膜机及包膜方法
US20210107757A1 (en) * 2018-05-28 2021-04-15 Aetna Group S.P.A. Machine for testing extensible plastic films for packaging
CN111392090A (zh) * 2020-05-12 2020-07-10 宣城立创自动化科技有限公司 一种适用于机床的辅助工具及其应用方法

Also Published As

Publication number Publication date
ES2361985A1 (es) 2011-06-27
EP2199215A3 (fr) 2015-05-27
ES2361985B1 (es) 2012-06-19

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