WO2017200725A1 - Procédé pour envelopper un chargement d'un film en matière plastique et machine d'emballage - Google Patents

Procédé pour envelopper un chargement d'un film en matière plastique et machine d'emballage Download PDF

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Publication number
WO2017200725A1
WO2017200725A1 PCT/US2017/029633 US2017029633W WO2017200725A1 WO 2017200725 A1 WO2017200725 A1 WO 2017200725A1 US 2017029633 W US2017029633 W US 2017029633W WO 2017200725 A1 WO2017200725 A1 WO 2017200725A1
Authority
WO
WIPO (PCT)
Prior art keywords
wrapping
plastic film
film web
roll
load
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/US2017/029633
Other languages
English (en)
Inventor
Pavel Basharanov
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.)
Signode Industrial Group LLC
Original Assignee
Signode Industrial Group LLC
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 Signode Industrial Group LLC filed Critical Signode Industrial Group LLC
Publication of WO2017200725A1 publication Critical patent/WO2017200725A1/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
    • 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
    • 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
    • B65B11/06—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths
    • B65B11/38—Wrapping articles, or quantities of material, by conveying wrapper and contents in common defined paths in a combination of straight and curved paths
    • 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
    • B65B2210/00—Specific aspects of the packaging machine
    • B65B2210/14—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles
    • B65B2210/20—Details of wrapping machines with web dispensers for application of a continuous web in layers onto the articles the web dispenser being mounted on a rotary arm

Definitions

  • the present invention relates to wrapping of a plastic film web on a load.
  • the article to be packaged is typically a pallet-mounted load, said load being usually an entity in the form of a rectangular parallelepiped.
  • the plastic film web is wrapped around a load either by rotating roll or rolls of plastic film web around a pallet or by rotating a pallet with respect to rolls of plastic film web, or by conducting both at the same time, whereby the rolls of plastic film web are also simultaneously shifted in vertical direction.
  • Wrapping machines are also typically fitted with elements for providing a piece of film web for covering a top surface of the load to be wrapped.
  • the film is usually also pre-stretched to a certain degree prior to wrapping the film around the load.
  • the stretched film provides secure protection of the wrapped load and helps to keep the wrapped products at their places on the pallet.
  • the stretching of the film also decreases the thickness of the film and thus less film material is used in the wrapping of the load.
  • One way of moving rolls of film web around a stationary pallet and a load thereon is to provide the wrapping machine with a horizontally placed, ring-shaped circular guide, said circular guide being fitted with one or more film supply carriages comprising a roll of film web.
  • a circular guide structure can be formed for example from a circular guide ring mounted on a frame of the wrapping machine in a vertically movable manner, and from a circular guide ring capable of rotating relative to the stationary circular guide ring, said rotating circular guide ring being fitted with film supply carriages.
  • the circular guide structure of a wrapping machine may consist of just one circular guide ring, which is mounted on a frame of the wrapping machine either rotatably or non-rotatably, as well as to be movable in vertical direction.
  • One wrapping machine solution based on the use of circular guides is known from patent publication US 4,587,796.
  • Another way for moving a roll of film web around a stationary pallet and a load thereon is to provide the wrapping machine with a rotating arm at which outer end a film supply carriage is fixed vertically adjustably.
  • the size of the load to be wrapped is restricted in these types of wrapping machines either by the size of the circular guide or the length of the rotating arm.
  • the present invention provides a novel wrapping method and wrapping machine, where the wrapping area is extended to be larger than the horizontal circular wrapping area of the prior art wrapping machines.
  • the horizontal plane in this context is defined to be the horizontal plane in the operating position of the wrapping machine, and which is substantially perpendicular to the vertical direction in which the roll of the plastic wrapping film web is moved during the wrapping process in order to cover the required portion of the height of the load to be wrapped.
  • the wrapping area can be adjusted to be suitable for different shapes and sizes of loads to be wrapped.
  • At least one roll of plastic film web is horizontally rotated around the load to be wrapped, and in addition to the horizontal rotational movement of the at least one roll of plastic film web in relation to the load to be wrapped, the at least one roll of plastic film web is also moved linearly on a substantially horizontal plane in relation to the load to be wrapped during wrapping.
  • the at least one roll of plastic film web is rotated with at least one rotating arm, and the rotating point of the at least one rotating arm is moved linearly during wrapping.
  • the rotational movement and linear movement of the at least one roll of plastic film web takes place in alternating consecutive phases.
  • the at least one roll of plastic film web is moved in substantially vertical direction in relation to the load to be wrapped, or alternatively the load to be wrapped is moved in substantially vertical direction in relation to the at least one roll of plastic film web, during wrapping.
  • the plastic film web is pre- stretched before wrapping it around the load to be wrapped.
  • the present invention also provides a wrapping machine for wrapping plastic film web on a load comprising at least one roll of plastic film web, and devices for horizontally rotating the at least one roll of plastic film web around a load, and devices for moving the at least one roll of plastic film web linearly on a substantially horizontal plane during wrapping.
  • the devices for rotating the at least one roll of plastic film web comprises at least one rotating arm
  • the devices for moving the at least one roll of plastic film web linearly during wrapping comprises devices for moving the rotating point of the rotating arm linearly during wrapping.
  • the wrapping machine comprises devices for operating the devices for rotating the at least one roll of plastic film web and the devices for moving the at least one roll of plastic film web linearly in alternating consecutive phases.
  • the wrapping machine comprises devices for moving the at least one roll of plastic film web substantially vertically in relation to the load to be wrapped, or alternatively devices for moving the load to be wrapped substantially vertically in relation to the at least one roll of plastic film web, during wrapping.
  • the wrapping machine comprises devices for pre-stretching the plastic film web before wrapping it around the load to be wrapped.
  • Figure 1 shows schematically an embodiment for the track of a roll of plastic film web in accordance with the invention
  • FIGS. 2A-2E show schematically an embodiment of a wrapping machine of the invention in different phases of the wrapping process
  • FIG. 3 shows schematically top view of the wrapping machine of the figures
  • Figure 4 shows schematically an alternative embodiment of a wrapping machine of the invention
  • Figure 5 shows schematically another alternative embodiment of a wrapping machine of the invention.
  • figure 1 is shown schematically an embodiment for the track 1 of a roll 2 of plastic film web in accordance with the present invention during wrapping as seen from above.
  • the track 1 comprises both curved rotational movement and linear movement of the roll 2 of plastic film web, in alternating consecutive phases.
  • a rotating arm 3 connected to the roll 2 of plastic film web, the opposite end 4 of which rotating arm in relation to the roll of plastic film web is moved linearly, and at each end of the linear movement of the rotating arm the arm is rotated 180°.
  • the roll 2 of plastic film web is also moved in substantially vertical direction, so that the height of the load to be wrapped is covered with plurality of wrapping rounds.
  • the plastic film wed is preferably pre-stretched prior to wrapping it on the load, in order to decrease the amount of plastic film web required for the wrapping and to provide additional support to the products and articles forming the load to be wrapped.
  • Figures 2A-2E show schematically an embodiment of a wrapping machine 11 of the invention in different phases of the wrapping process of a load 12.
  • the wrapping machine 11 comprises a frame 13, a rotating arm 14, which rotating arm comprises a horizontally extending portion and at first end of the horizontally extending portion a vertically extending portion, to which vertically extending portion is vertically movably connected a roll of plastic wrapping film web 15.
  • the horizontally extending portion of the rotating arm 14 is connected from second end to a rotating arrangement 16 which provides the rotating movement of the rotating arm.
  • the rotating arrangement 16 is connected to the frame 13 of the wrapping machine 11 via a pair of horizontally extending guide rails 17 along which the rotating arrangement 16 is moved linearly in horizontal plane back and forth.
  • the rotating arrangement 16 comprises a motor for rotating the rotating arm 14 together with the related gear arrangement and a frequency controller for controlling the rotating speed of the motor.
  • the rotating arrangement also comprises a motor for moving the rotating arrangement 16 horizontally in relation to the frame 13 of the wrapping machine 11 along a toothed belt connected to the frame of the wrapping machine, and a related gear arrangement and a frequency controller for controlling the rotating speed of the motor.
  • the wrapping machine also comprises a cutting and fixing device 18 for cutting the wrapped plastic film web and for attaching the cut end of the wrapped film web onto the wrapped load.
  • the cutting and fixing device 18 also holds the other end of the cut plastic film web after the film is cut, sets it against a new load to be wrapped when the wrapping process is started and releases the end after the first wrapping round is wrapped so that the end is left between the load and first wrapping round.
  • the load 12 to be wrapped is moved into the wrapping area of the wrapping machine 11, as shown in figure 2A. After the load 12 is moved into the wrapping area the wrapping process is ready to be started.
  • the rotating arrangement 16 rotates the rotating arm 14 a half circle, i.e. 180°, on a horizontal plane, starting from the position shown in figure 2A, then through the position shown in figure 2B and to the position shown in figure 2C.
  • Figure 3 shows top view of the wrapping machine 11, further clarifying the movement of the rotating arm 14 and the plastic wrapping film roll 15 during wrapping process.
  • the dashed line marked with Ri shows the maximum wrapping area
  • the dashed line marked with Re shows the required minimum area to be restricted for the operation of the wrapping machine during the wrapping process.
  • the length L shown in the figure defines the length of the horizontal movement of the rotating arrangement 16.
  • Figure 4 shows an alternative embodiment of a wrapping machine 11 shown in figures 2A-3, where the frame 13 of the wrapping machine 11 is movable along straight rails 19 extending linearly in the direction of the horizontal linear movement of the rotating arrangement 16.
  • the rails 19 allow further linear horizontal movement for the rotating arrangement 16 of the wrapping machine 11 in relation to the load 12 to be wrapped, which further extends the wrapping area of the wrapping machine significantly in the direction of the rails, i.e. in the linear horizontal direction in which the rotating arrangement 16 is moved.
  • the extent of the horizontal movement of the rotating arrangement 16 in relation to the frame 13 is preferably used first before the frame 13 of the wrapping machine 11 is moved along the rails 19 in the wrapping process. This is because the movement of rotating arrangement 16 in relation to the frame 13 does not use so much energy than the movement of the frame 13 of the wrapping machine 11, i.e. the whole wrapping machine 11, along the rails 19.
  • FIG. 5 shows another embodiment of a wrapping machine 21 of the invention for wrapping plastic film web on a load 22.
  • the frame 23 of the wrapping machine 21 is formed as a substantially L-shaped structure, which comprises a base at one end and rotating arm 24 at the other end.
  • the rotating arm 24 comprises a horizontally extending portion and at first end of the horizontally extending portion a vertically extending portion, to which vertically extending portion is vertically movably connected a roll of plastic wrapping film web (not shown).
  • the horizontally extending portion of the rotating arm 25 is connected from second end to the end area of the frame 23 rotatably.
  • the wrapping machine 21 also comprises a cutting and fixing device 28 for cutting the wrapped plastic film web and for attaching the cut end of the wrapped film web onto the wrapped load.
  • the cutting and fixing device 28 also holds the other end of the cut plastic film web after the film is cut, sets it against a new load to be wrapped when the wrapping process is started and releases the end after the first wrapping round is wrapped so that the end is left between the load and first wrapping round.
  • the wrapping machine 21 is mounted on straight rails 29, which allow the wrapping machine to be moved horizontally linearly along the side on the load to 22 be wrapped.
  • the horizontal linear movement of the roll of the plastic wrapping film is achieved by moving the whole wrapping machine 21 along the rails after each half circle rotation of the rotating arm 24.

Landscapes

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

Abstract

L'invention concerne un procédé d'emballage d'un chargement (12, 22) avec un film en matière plastique, dans lequel procédé au moins un rouleau de bande de film en matière plastique (2, 15) est tourné horizontalement autour du chargement à envelopper, et dans lequel, en plus du mouvement de rotation horizontal du ou des rouleaux de bande de film en matière plastique (2, 15) par rapport au chargement (12, 22) à envelopper, le ou les rouleaux de bande de film en matière plastique sont déplacés horizontalement de manière linéaire par rapport au chargement à envelopper pendant l'enveloppement. L'invention concerne également une telle machine d'emballage (11, 21).
PCT/US2017/029633 2016-05-18 2017-04-26 Procédé pour envelopper un chargement d'un film en matière plastique et machine d'emballage Ceased WO2017200725A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20165415A FI126905B (en) 2016-05-18 2016-05-18 A method for wrapping a plastic film on a load and a wrapping machine
FI20165415 2016-05-18

Publications (1)

Publication Number Publication Date
WO2017200725A1 true WO2017200725A1 (fr) 2017-11-23

Family

ID=58672774

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2017/029633 Ceased WO2017200725A1 (fr) 2016-05-18 2017-04-26 Procédé pour envelopper un chargement d'un film en matière plastique et machine d'emballage

Country Status (2)

Country Link
FI (1) FI126905B (fr)
WO (1) WO2017200725A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587796A (en) 1983-04-21 1986-05-13 Oy M. Haloila Ab Packaging machine
DE10220803A1 (de) * 2002-05-10 2003-12-24 Heikaus Unternehmensbeteiligun Verfahren zum Umwickeln von auf einem Träger angeordneten Gegenständen
EP2634101A2 (fr) * 2012-03-02 2013-09-04 Andreas Lindpointner Banderoleuse
EP3144231A1 (fr) * 2015-09-21 2017-03-22 Schermesser Dispositif, ensemble et méthode d'emballage d'un objet

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587796A (en) 1983-04-21 1986-05-13 Oy M. Haloila Ab Packaging machine
US4587796B1 (en) 1983-04-21 1997-12-23 Newtec Int Packaging machine
DE10220803A1 (de) * 2002-05-10 2003-12-24 Heikaus Unternehmensbeteiligun Verfahren zum Umwickeln von auf einem Träger angeordneten Gegenständen
EP2634101A2 (fr) * 2012-03-02 2013-09-04 Andreas Lindpointner Banderoleuse
EP3144231A1 (fr) * 2015-09-21 2017-03-22 Schermesser Dispositif, ensemble et méthode d'emballage d'un objet

Also Published As

Publication number Publication date
FI20165415A7 (fi) 2017-07-31
FI126905B (en) 2017-07-31

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