WO2023133164A1 - Système d'enroulement de palette à bandes se chevauchant - Google Patents

Système d'enroulement de palette à bandes se chevauchant Download PDF

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Publication number
WO2023133164A1
WO2023133164A1 PCT/US2023/010148 US2023010148W WO2023133164A1 WO 2023133164 A1 WO2023133164 A1 WO 2023133164A1 US 2023010148 W US2023010148 W US 2023010148W WO 2023133164 A1 WO2023133164 A1 WO 2023133164A1
Authority
WO
WIPO (PCT)
Prior art keywords
stretch film
composite
banded
width
stretch
Prior art date
Application number
PCT/US2023/010148
Other languages
English (en)
Inventor
Darrel Bison
Original Assignee
Darrel Bison
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 US17/568,603 external-priority patent/US11628959B1/en
Priority claimed from US17/570,258 external-priority patent/US11801953B2/en
Application filed by Darrel Bison filed Critical Darrel Bison
Publication of WO2023133164A1 publication Critical patent/WO2023133164A1/fr

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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
    • 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
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B65B41/12—Feeding webs from rolls
    • B65B41/16—Feeding webs from rolls by rollers
    • 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
    • B65B2011/002—Prestretching mechanism in wrapping machines

Definitions

  • palletized goods or material may be wrapped in stretch film to protect the material from damage caused by, for example, shifting on a pallet or being bumped by goods on adjacent pallets.
  • a commonly acknowledged need in the industry is to develop systems and methods for reducing the amount of stretch film used per pallet, as well as the amount of time required to wrap each pallet, and/or to eliminate ancillary packaging materials such as corner boards and strapping, without sacrificing load containment.
  • aspects of this document relate to a method of wrapping a palletized load comprising forming at least two composite stretch films including a first composite stretch film and a second composite stretch film, wherein forming each of the at least two composite stretch films comprises passing stretch film from a first spool through a first plurality of guides, narrowing a width of the stretch film from the first spool to create a first banded stretch film, wherein the first banded stretch film has a first width and a filament extending along each of a top edge and a bottom edge of the first banded stretch film, passing stretch film from a second spool through a second plurality of guides, narrowing a width of the stretch film from the second spool to create a second banded stretch film, wherein the second banded stretch film has a second width smaller than the first width and a filament extending along each of a top edge and a bottom edge of the second banded stretch film, and overlaying the second banded stretch film on the first banded stretch
  • Particular embodiments may comprise one or more of the following features.
  • Each of the at least two composite stretch films may be pre-stretched by between 275% and 340%.
  • the first width may be between 1.5 inches and 15 inches.
  • Forming each of the at least two composite stretch films further may comprise centering the second banded stretch film on the first banded stretch film.
  • aspects of this document relate to a method of wrapping a palletized load comprising forming at least two composite stretch films including a first composite stretch film and a second composite stretch film, wherein forming each of the at least two composite stretch films comprises narrowing a width of stretch film from a first spool to create a first banded stretch film with a first width and a filament extending along each of a top edge and a bottom edge of the first banded stretch film, narrowing a width of stretch film from a second spool to create a second banded stretch film with a second width and a filament extending along each of a top edge and a bottom edge of the second banded stretch film, wherein the second width is smaller than the first width, overlaying the second banded stretch film on the first banded stretch film to form each of the at least two composite stretch films, wherein each of the filaments of the second banded stretch film is positioned between the filaments of the first banded stretch film, wrapping each of the at least two composite
  • the method may further comprise pre-stretching the composite stretch film by at least 275%.
  • the method may further comprise pre-stretching the composite stretch film by between 300% and 340%.
  • the first width may be between 1.5 inches and 15 inches.
  • Forming each of the at least two composite stretch films may further comprise centering the second banded stretch film on the first banded stretch film. Wrapping each of the at least two composite stretch films around the palletized load may occur simultaneously.
  • the at least two composite stretch films may further include a third composite stretch film and the method may further comprise leaving a gap having a width equal to or larger than the first width between the second composite stretch film and the third composite stretch film as the at least two composite stretch films are wrapped around the palletized load.
  • aspects of this document relate to a method of wrapping a palletized load comprising forming at least two composite stretch films including a first composite stretch film and a second composite stretch film, wherein forming each of the at least two composite stretch films comprises narrowing a width of stretch film from a first spool to create a first banded stretch film with a first width, narrowing a width of stretch film from a second spool to create a second banded stretch film with a second width, wherein the second width is smaller than the first width, and overlaying the second banded stretch film on the first banded stretch film to form each of the at least two composite stretch films, wherein the second banded stretch film is positioned between a top edge and a bottom edge of the first banded stretch film, wrapping each of the at least two composite stretch films around the palletized load, and leaving a gap having a width that is equal to or larger than half of the first width between the first composite stretch film and the second composite stretch film as the at least two composite stretch films are wrapped
  • the first banded stretch film may have a filament extending along each of the top edge and the bottom edge and the second banded stretch film may have a filament extending along each of a top edge and a bottom edge of the second banded stretch film.
  • Forming the at least two composite stretch films may further comprise passing the stretch film from the first spool through a first plurality of guides and passing the stretch film from the second spool through a second plurality of guides.
  • the method may further comprise pre-stretching the composite stretch film by at least 275%.
  • the method may further comprise pre-stretching the composite stretch film by between 300% and 340%.
  • the first width may be between 1.5 inches and 15 inches.
  • Forming each of the at least two composite stretch films may further comprise centering the second banded stretch film on the first banded stretch film. Wrapping each of the at least two composite stretch films around the palletized load may occur simultaneously.
  • the at least two composite stretch films may further include a third composite stretch film and the method may further comprise leaving a gap having a width equal to or larger than half of the first width between the second composite stretch film and the third composite stretch film as the at least two composite stretch films are wrapped around the palletized load.
  • noun, term, or phrase is intended to be further characterized, specified, or narrowed in some way, then such noun, term, or phrase will expressly include additional adjectives, descriptive terms, or other modifiers in accordance with the normal precepts of English grammar. Absent the use of such adjectives, descriptive terms, or modifiers, it is the intent that such nouns, terms, or phrases be given their plain, and ordinary English meaning to those skilled in the applicable arts as set forth above.
  • FIG. l is a perspective view of a pallet wrapping system
  • FIG. 2 is a top view of the pallet wrapping system shown in FIG. 1;
  • FIG. 3 is a front view of a composite stretch film created by the pallet wrapping system shown in FIG. 1;
  • FIG. 4 is a process diagram illustrating the method of wrapping a palletized load using the pallet wrapping system shown in FIG. 1;
  • FIG. 5 is a process diagram illustrating the method of forming each of the composite stretch films used to wrap a palletized load using the pallet wrapping system shown in FIG. 1.
  • the present disclosure is related to a pallet wrapping system 100 that creates a composite stretch film that is designed to reduce the amount of stretch film required to secure a palletized load for shipping and decrease the amount of time required to wrap the palletized load.
  • the pallet wrapping system 100 may comprise a plurality of support bars 102 and a plurality of guides 104, as shown in FIGs. 1-2.
  • the support bar 102 may have a channel 106 that extends parallel to a length of the support bar 102 for a majority of the length of the support bar 102. This allows the plurality of guides 104 to be affixed to the support bar 102 at any desired position along the channel 106.
  • Each of the guides may have any of the features of the adjustment arms disclosed in U.S. Patent Application No.
  • the plurality of guides 104 are coupled to the support bar 102 and are configured to narrow the width of a stretch film 108 for wrapping a palletized load. As shown in FIGs. 1-2, the plurality of guides 104 may be arranged in pairs, with each pair separated by a distance less than the width of the stretch film 108. Thus, when the stretch film 108 passes through the plurality of guides 104, the guides 104 form a filament 110 on the top edge 112 and the bottom edge 114 of the stretch film 108 to result in a narrower stretch film with banded edges.
  • the filament 110 is an edge of the stretch film 108 that has been banded, rolled, folded, bunched together, etc.
  • the filament 110 provides additional strength to the stretch film 108 because of its resistance towards tearing. Because the plurality of guides 104 can be affixed to the support bar 102 at any desired position along the channel 106, the user can adjust the plurality of guides 104 to adjust the width of the banded stretch film exiting the plurality of guides 104.
  • the pallet wrapping system 100 may also comprise at least one spool 116 configured to hold and dispense the stretch film 108.
  • the at least one spool 116 may comprise a first spool 118 and a second spool 120, as shown in FIGs. 1-2.
  • Each of the at least one spool 116 may have more than one roll of stretch film 108.
  • the rolls of stretch film 108 on the same spool 116 may be configured to dispense from the spool 116 at the same rate.
  • the pallet wrapping system 100 may be used to form a composite stretch film 122, as shown in FIG. 1 and FIG. 3, which may be wrapped around a palletized load.
  • the composite stretch film 122 may be formed from two rolls of stretch film 108.
  • stretch film 108 from the first spool 118 may be passed through a first plurality of guides 104, thus narrowing a width of the stretch film 108 from the first spool 118 to create a first banded stretch film 124
  • stretch film 108 from the second spool 120 may be passed through a second plurality of guides 104, thus narrowing a width of the stretch film 108 from the second spool 120 to create a second banded stretch film 126.
  • the first banded stretch film 124 has a first width 128 and the second banded stretch film 126 has a second width 130.
  • the first width may be between 1.5 inches and 15 inches. In some embodiments, the first width is between 3.5 inches and 5 inches.
  • the second width 130 may be smaller than the first width 128.
  • the second banded stretch film 126 may be overlay ed on the first banded stretch film 124 with each of the filaments 110 of the second banded stretch film 126 positioned between the filaments 110 of the first banded stretch film 124.
  • each composite stretch film 122 may have a central region 132 with two layers of stretch film 108 and two side regions 134 with one layer of stretch film 108, with each region separated from adjacent regions by a filament 110.
  • wrapping a palletized load 135 may comprise forming at least two composite stretch films 136, which may include a first composite stretch film 122, a second composite stretch film 122, and a third composite stretch film 122, pre-stretching each of the at least two composite stretch films 138, wrapping each of the at least two composite stretch films around the palletized load 140, and, as the at least two composite stretch films are wrapped around the palletized load, leaving a gap between the first composite stretch film and the second composite stretch film 142.
  • the gap 144 may have a width 145 equal to or larger than the first width of the first banded stretch film.
  • a similar gap may be left between the second composite stretch film 122 and the third composite stretch film 122 as the at least two composite stretch films are wrapped around the palletized load.
  • the stretch film 108 often has a stretch limit between 190% and 275%, depending on the stretch film’s resin blend and the type of load being wrapped. Pre-stretching by more than 275% often causes the stretch film 108 to tear.
  • the composite stretch film 122 may be pre-stretched beyond 275%. In some implementations, the pre-stretch may be at least 300%, at least 340%, or between 300% and 340%. This increased stretch in the composite stretch film 122 is possible because of the additional strength that the filaments 110 provide to the composite stretch film 122. The increased stretch facilitates securing the palletized load with less stretch film 108 because the stretch film 108 that is used maintains a tighter grip.
  • each of the at least two composite stretch films 122 may occur simultaneously.
  • both the first composite stretch film 122 and the second composite stretch film 122 may be wrapped around the palletized load at the same time.
  • the gap 144 may have a width 145 equal to or larger than the first width 128.
  • the gap 144 may have a width 145 equal to or larger than half of the first width 128. The gap 144 increases the air circulation with the palletized load.
  • the gap 144 may be especially helpful when wrapping produce or other items that require good air circulation.
  • the gap 144 decreases the amount of stretch film 108 required to secure the palletized load because the gap 144 does not need to be filled in with stretch film 108 to secure the palletized load and decreases the amount of time required to wrap the palletized load because at least two composite stretch films 122 are wrapped around the palletized load at once, thus reducing the number of times the palletized load must be rotated.
  • forming each of the composite stretch films 136 may comprise passing stretch film from the first spool through the first plurality of guides and passing stretch film from the second spool through the second plurality of guides 146, narrowing the width of the stretch film from the first spool to create a first banded stretch film and narrowing the width of the stretch film from the second spool to create a second banded stretch film 148, and overlaying the second banded stretch film on the first banded stretch film to form each of the at least two composite stretch films 152.
  • Forming the at least two composite stretch films may further comprise centering the second banded stretch film on the first banded stretch film 150.
  • implementations of a pallet wrapping system are not limited to the specific assemblies, devices and components disclosed in this document, as virtually any assemblies, devices and components consistent with the intended operation of a pallet wrapping system may be used. Accordingly, for example, although particular pallet wrapping systems, and other assemblies, devices and components are disclosed, such may include any shape, size, style, type, model, version, class, measurement, concentration, material, weight, quantity, and/or the like consistent with the intended operation of pallet wrapping systems. Implementations are not limited to uses of any specific assemblies, devices and components; provided that the assemblies, devices and components selected are consistent with the intended operation of a pallet wrapping system.
  • the components defining any pallet wrapping system may be formed of any of many different types of materials or combinations thereof that can readily be formed into shaped objects provided that the materials selected are consistent with the intended operation of a pallet wrapping system.
  • the components may be formed of: polymers such as thermoplastics (such as ABS, Fluoropolymers, Polyacetal, Polyamide; Polycarbonate, Polyethylene, Polysulfone, and/or the like), thermosets (such as Epoxy, Phenolic Resin, Polyimide, Polyurethane, Silicone, and/or the like), any combination thereof, and/or other like materials; glasses (such as quartz glass), carbon-fiber, aramid-fiber, any combination thereof, and/or other like materials; composites and/or other like materials; metals, such as zinc, magnesium, titanium, copper, lead, iron, steel, carbon steel, alloy steel, tool steel, stainless steel, brass, nickel, tin, antimony, pure aluminum, 1100 aluminum, aluminum alloy, any combination thereof, and/or other like materials
  • Various pallet wrapping systems may be manufactured using conventional procedures as added to and improved upon through the procedures described here. Some components defining a pallet wrapping system may be manufactured simultaneously and integrally joined with one another, while other components may be purchased pre-manufactured or manufactured separately and then assembled with the integral components. Various implementations may be manufactured using conventional procedures as added to and improved upon through the procedures described here.
  • manufacture of these components separately or simultaneously may involve extrusion, pultrusion, vacuum forming, injection molding, blow molding, resin transfer molding, casting, forging, cold rolling, milling, drilling, reaming, turning, grinding, stamping, cutting, bending, welding, soldering, hardening, riveting, punching, plating, and/or the like.
  • a fastener e.g. a bolt, a nut, a screw, a nail, a rivet, a pin, and/or the like
  • wiring any combination thereof, and/or the like for example, depending on, among other considerations, the particular material forming the components.
  • any steps or sequence of steps of the assembly of a pallet wrapping system indicated herein are given as examples of possible steps or sequence of steps and not as limitations, since various assembly processes and sequences of steps may be used to assemble pallet wrapping systems.
  • the implementations of a pallet wrapping system described are by way of example or explanation and not by way of limitation. Rather, any description relating to the foregoing is for the exemplary purposes of this disclosure, and implementations may also be used with similar results for a variety of other applications employing a pallet wrapping system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)

Abstract

Procédé d'enroulement d'une charge palettisée comprenant la formation d'au moins deux films extensibles composites, l'enroulement de chaque film extensible composite autour de la charge palettisée, et un espace entre le premier film extensible composite et le second film extensible composite lorsque les films extensibles composites sont enroulés autour de la charge palettisée. La formation des films extensibles composites comprend le rétrécissement d'un film extensible à partir d'une première bobine pour créer un premier film extensible bandé ayant une première largeur, le rétrécissement du film extensible à partir d'une seconde bobine pour créer un second film extensible bandé ayant une seconde largeur inférieure à la première largeur, et le recouvrement du second film extensible bandé sur le premier film extensible bandé, le second film extensible bandé étant positionné entre le bord supérieur et les bords inférieurs du premier film extensible bandé. L'espace peut avoir une largeur qui est égale ou supérieure à la première largeur.
PCT/US2023/010148 2022-01-04 2023-01-04 Système d'enroulement de palette à bandes se chevauchant WO2023133164A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US17/568,603 2022-01-04
US17/568,603 US11628959B1 (en) 2020-04-03 2022-01-04 Shipping pallet wrapping system
US17/570,258 2022-01-06
US17/570,258 US11801953B2 (en) 2022-01-06 2022-01-06 Pallet wrapping system with overlapping bands

Publications (1)

Publication Number Publication Date
WO2023133164A1 true WO2023133164A1 (fr) 2023-07-13

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PCT/US2023/010148 WO2023133164A1 (fr) 2022-01-04 2023-01-04 Système d'enroulement de palette à bandes se chevauchant

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754594A (en) * 1980-02-27 1988-07-05 Lantech, Inc. Z-stretch wrapping system
JP2002225806A (ja) * 2000-11-28 2002-08-14 Osaka N Ii D Mach Kk 圧縮物包装体並びにその製造装置及び製造方法
US20110088359A1 (en) * 2008-06-27 2011-04-21 Brocard Pierre Method and device for wrapping products
US20130104754A1 (en) * 2009-12-01 2013-05-02 Kuhn-Geldrop Bv Binding apparatus and method for binding a bale
US20190084703A1 (en) * 2017-09-18 2019-03-21 Phoenix Wrappers ULC Methods and Apparatuses for Securing a Palletized Load with Stretch Film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4754594A (en) * 1980-02-27 1988-07-05 Lantech, Inc. Z-stretch wrapping system
JP2002225806A (ja) * 2000-11-28 2002-08-14 Osaka N Ii D Mach Kk 圧縮物包装体並びにその製造装置及び製造方法
US20110088359A1 (en) * 2008-06-27 2011-04-21 Brocard Pierre Method and device for wrapping products
US20130104754A1 (en) * 2009-12-01 2013-05-02 Kuhn-Geldrop Bv Binding apparatus and method for binding a bale
US20190084703A1 (en) * 2017-09-18 2019-03-21 Phoenix Wrappers ULC Methods and Apparatuses for Securing a Palletized Load with Stretch Film

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