EP0433718A1 - Procédé et dispositif pour enrouler des feuilles continues - Google Patents

Procédé et dispositif pour enrouler des feuilles continues Download PDF

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Publication number
EP0433718A1
EP0433718A1 EP90122717A EP90122717A EP0433718A1 EP 0433718 A1 EP0433718 A1 EP 0433718A1 EP 90122717 A EP90122717 A EP 90122717A EP 90122717 A EP90122717 A EP 90122717A EP 0433718 A1 EP0433718 A1 EP 0433718A1
Authority
EP
European Patent Office
Prior art keywords
roller
package
winding
value sequence
speed
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
EP90122717A
Other languages
German (de)
English (en)
Inventor
Hubert Upmann
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.)
B HAGEMANN GmbH AND Co
Original Assignee
B HAGEMANN GmbH AND Co
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 B HAGEMANN GmbH AND Co filed Critical B HAGEMANN GmbH AND Co
Publication of EP0433718A1 publication Critical patent/EP0433718A1/fr
Ceased 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
    • 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
    • B65B11/02—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 invention relates to a method for winding a film web around a package, which has a cross-section that causes changes in the time required length of film web during winding, with a rotating around the package winding device, which comprises at least one roller that corresponds to the one Cross-section of the package corresponding value sequence is controllable in its speed and the controlled length of the film web is controlled.
  • the invention further relates to a device for performing the above method.
  • a device and a method of the type mentioned at the outset are known from GB-OS 2 154 536.
  • the control means for the circulating roller are not coupled to the film web.
  • These control means have means for forming a predetermined model which approximates the cross-sectional shape of the load.
  • the speed of the roller is controlled according to this model.
  • the control is independent of the ascertainable changes in the tension of the film web as well as of the changes in the demand rate that are actually detected.
  • the model is an idealized load model, which is constructed mechanically and which shows the difference between the controlled delivery speed and the rate on one holds constant value as possible.
  • a disadvantage of the known device is that the "model", which essentially consists of several rollers that can be displaced on a guide, is to be defined in a very cumbersome manner and is to be defined as a transformation of the package crosspiece. Furthermore, the model can always only provide an idealized form, since the number of model parameters and thus the addressed value sequence can only assume a very limited number of values.
  • DE-OS 27 50 780 is also known from DE-OS 27 50 780 is a stretch film wrapping machine for pallet loads, which guides the film strip between the film roll and the pallet around an articulated deflection roller, on which a constant but adjustable force acts. If the deflection roller is deflected against the force of the central position by a higher film tension, the braking torque is reduced by a control (e.g. pressure control valve or potentiometer) by a value that is roughly proportional to the angle of the deflection.
  • a control e.g. pressure control valve or potentiometer
  • the aforementioned method is usually initiated in such a way that to determine the value sequence, a revolution takes place at a lower angular velocity than the angular revolutions are carried out later in the operating state.
  • the value sequence is determined, for example, by a voltage button.
  • the rotational speed to be controlled is directly proportional to the tension determined in the respective winding state.
  • the voltage is then of course no longer measured, but the voltage transmitter or button is switched out of engagement.
  • the proposed procedure is usually also carried out digitally.
  • the number of increments of the step-by-step scanning should be chosen so large, for example 21 2 per 360 ° revolution, that a practically completely continuous control is carried out.
  • the main advantage is the very quick possibility of scanning the cross-sectional contour of the respective package.
  • a control cycle can be carried out after 5 or 20 or any number of cycles which results in a new sequence of values which is then valid for the following five (as an example) to n round trips.
  • a stretching mechanism which also includes the discharge roller, can be installed upstream of the discharge roller.
  • two rolls are required, which rotate in a certain relationship to one another and are encompassed one after the other by the film web. This possibility can also be implemented in a simple manner by the control system, since the two rollers can each rotate in a more precisely dependent manner.
  • the device is similar to known winding devices as they are known.
  • FIG. 1 shows a top view of a device for wrapping packages 1.
  • the device has a roller guide device 2 with which a film web 3 can be drawn off from a supply roll 4.
  • the supply roll 4 can be rotated together with a winding device 5 around the roll guide device 2.
  • the winding device 5 consists of a base plate 6, on which there are two driven rollers, namely an outlet roller 7 and an inlet roller 8. The two roles are rotated by a gear (not shown) in their mutual rotational speed in a fixed ratio.
  • the film web 3 first runs around the feed roller 8 and then in an S-loop the outlet roller 7.
  • the roller drives are usually hydraulic motors or electric motors which can be controlled from the outside.
  • the film web 3 then passes over a push-button roller 9 with which the tension of the film web 3 can be scanned.
  • a value sequence which corresponds to the cross section of the package 1 is first set up at a slow circulation speed, that is to say, for example, at a circulation speed of 1/10 revolution per second. This is done in that the film web is attached to the package 1.
  • the button roller 9 is placed on the film and held in a certain middle position.
  • the feeler roller 9 is connected to a feeler arm 10, which is rotatable about a pivot point 11, which is located on the base plate 6, and is connected via a link contour 12.
  • the position of the feeler arm 10 or the feeler roller 9 is entered into a displacement sensor 14 via a further feeler arm 13.
  • FIG. 2 shows such a diagram.
  • This sequence of values is stored in an electronic data memory.
  • the sequence of values standardized from the data memory mentioned is used sequentially to control the rotational speed of the idler roller 7.
  • the percentage change in feed rate ⁇ of the idler roller 7 from an average speed is directly proportional to the voltage change values as found during the first "test run".
  • the probe arm 10 is pivoted out of the contact area with the film strip 3 into position E.
  • the probe arm remains in contact and is used, for example, to detect unexpected changes or major errors, for example a crack of the film strip or an unexpected increase in tension, for example by emigration of the package 1 from the coordinate cross, as defined in FIG. 2. It is essential that the rotational speed of the idler roller 7 can be controlled in very small increments following the sequence of values and thus ensures that the tension of the film strip is exactly maintained. Very irregular cross sections, for example a box with protruding bottle necks, as shown as package 1, can also be detected here.
  • the data memory 15 is only shown schematically.
  • Such data memories are of course known from electronic data processing. However, it should not be ruled out that paper tape or the like, for example, are also suitable as data memories.
  • the discharge roller 7 and the feed roller 8 are coupled to one another in such a way that a fixed speed ratio of the two rollers can be generated to produce a film stretch between the two rollers.
  • stretching mechanisms are known per se, but can advantageously be integrated into a device of the aforementioned type.
  • the method can advantageously also be modified in that the value sequence required for controlling the roller (7) after input of known, e.g. B. previously measured package dimensions, e.g. B. calculated from a keyboard in the machine control of this, stored in a data memory and used to control the speed of rotation of the idler.
  • package dimensions can also be recorded, for example, by non-contact measuring devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Basic Packing Technique (AREA)
EP90122717A 1989-12-19 1990-11-28 Procédé et dispositif pour enrouler des feuilles continues Ceased EP0433718A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3941940A DE3941940C1 (fr) 1989-12-19 1989-12-19
DE3941940 1989-12-19

Publications (1)

Publication Number Publication Date
EP0433718A1 true EP0433718A1 (fr) 1991-06-26

Family

ID=6395813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90122717A Ceased EP0433718A1 (fr) 1989-12-19 1990-11-28 Procédé et dispositif pour enrouler des feuilles continues

Country Status (3)

Country Link
US (1) US5123230A (fr)
EP (1) EP0433718A1 (fr)
DE (1) DE3941940C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024373A1 (fr) * 1992-06-02 1993-12-09 Minnesota Mining And Manufacturing Company Systeme distributeur a l'unite pour bande adhesive a decollement par etirement variable
US5352320A (en) * 1993-04-09 1994-10-04 Minnesota Mining And Manufacturing Company Manual tape dispensing apparatus
US5490642A (en) * 1993-04-09 1996-02-13 Minnesota Mining And Manufacturing Company Manual tape dispensing apparatus

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234604C2 (de) * 1992-10-14 1996-06-13 Hagemann B Gmbh & Co Packmaschine mit Kompensiervorrichtung
FI105666B (fi) * 1998-02-11 2000-09-29 Haloila M Oy Ab Käärintälaite
IT1308997B1 (it) * 1999-02-16 2002-01-15 Robopac Sistemi Srl Macchina per l'avvolgimento di gruppi di prodotti con film plastico.
FI109113B (fi) 2000-02-17 2002-05-31 Haloila M Oy Ab Käärintälaite
IT1319650B1 (it) * 2000-11-14 2003-10-23 Sestese Off Mec Aspo svolgitore dotato di mezzi di disattivazione del trascinamento.
US6748718B2 (en) * 2001-11-01 2004-06-15 Lantech, Inc. Method and apparatus for wrapping a load
FI114391B (fi) * 2002-04-30 2004-10-15 Pesmel Oy Kehäratarakenteen käsittävä käärintälaitteisto ja kalvonjakolaitteisto
US7568327B2 (en) 2003-01-31 2009-08-04 Lantech.Com, Llc Method and apparatus for securing a load to a pallet with a roped film web
US7707801B2 (en) * 2005-04-08 2010-05-04 Lantech.Com, Llc Method for dispensing a predetermined amount of film relative to load girth
EP2607245B1 (fr) * 2006-02-23 2015-04-29 Lantech.Com, Llc Procédé et appareil de distribution dosée de film pré-étiré
US9908648B2 (en) * 2008-01-07 2018-03-06 Lantech.Com, Llc Demand based wrapping
AU2009204214B2 (en) * 2008-01-07 2014-05-22 Lantech.Com, Llc Electronic control of metered film dispensing in a wrapping apparatus
US9493262B2 (en) 2010-10-29 2016-11-15 Lantech.Com, Llc Machine generated wrap data
ITMO20110170A1 (it) 2011-07-08 2013-01-09 Aetna Group Spa Metodo di avvolgimento
US9944417B2 (en) 2012-06-08 2018-04-17 Wulftec International Inc. Apparatuses for wrapping a load and supplying film for wrapping a load and associated methods
CA2889570C (fr) 2012-10-25 2020-10-27 Lantech.Com, Llc Enveloppement base sur un angle de rotation
CA3109068C (fr) 2012-10-25 2023-05-16 Patrick R. Lancaster, Iii Enveloppement base sur une circonference effective
AU2013334172B2 (en) 2012-10-25 2017-09-14 Lantech.Com, Llc Corner geometry-based wrapping
CA2901256C (fr) 2013-02-13 2017-12-12 Lantech.Com, Llc Enveloppement base sur la force de confinement
US9896229B1 (en) 2013-08-29 2018-02-20 Top Tier, Llc Stretch wrapping apparatus and method
HU230529B1 (hu) * 2013-09-12 2016-11-28 Kőröspack Kft. Berendezés egység rakományok burkolására nyújtható fóliával
CA3038441C (fr) 2014-01-14 2021-04-27 Lantech.Com, Llc Reglage dynamique du parametre de force d'enveloppement en reponse a la force d'enveloppement controlee et/ou pour la reduction des ruptures de film
AU2015330917B2 (en) 2014-10-07 2018-11-15 Lantech.Com, Llc Graphical depiction of wrap profile for load wrapping apparatus
ITUB20151033A1 (it) * 2015-05-29 2016-11-29 Aetna Group Spa Macchina avvolgitrice
US11034470B2 (en) 2015-09-25 2021-06-15 Lantech.Com, Llc Stretch wrapping machine with automatic load profiling
IT201700082727A1 (it) * 2017-07-20 2019-01-20 Aetna Group Spa Metodo e macchina per avvolgere un carico con un film
EP3684698B1 (fr) 2017-09-22 2023-11-15 Lantech.com, LLC Profils d'emballage d'appareil d'emballage de charge dotés d'interruptions de cycle d'emballage commandées
US11208225B2 (en) 2018-08-06 2021-12-28 Lantech.Com, Llc Stretch wrapping machine with curve fit control of dispense rate
CA3147094A1 (fr) 2019-09-09 2021-03-18 Lantech.Com, Llc Emballeuse sous film retractable a controle de la vitesse de distribution base sur la vitesse detectee du materiau d'emballage distribue et la geometrie predite de la charge
EP4031455A4 (fr) 2019-09-19 2024-04-03 Lantech Com Llc Classement de matériaux d'emballage et/ou profils d'usine
US11497172B2 (en) * 2019-11-20 2022-11-15 Groupe Anderson Inc. Wrapping mechanism protection device for bale wrapping apparatus
ES2953460B2 (es) * 2023-06-09 2024-03-25 Innova Maqu Industrial S L Envolvedora automatica que comprende un sistema de atado de cordon

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750780A1 (de) * 1977-11-14 1979-05-17 Franpack Gmbh Verpackungsmasch Streckfolieneinschlagmaschine mit kompensiervorrichtung
US4458467A (en) * 1981-03-31 1984-07-10 Infra Pak (Dallas), Inc. Pretensioner for stretchable film web with dancer roller compensation
EP0152960A2 (fr) * 1984-02-23 1985-08-28 Lantech, Inc. Appareil rotatif d'enveloppement avec un film et procédé pour joindre une surenveloppe compressive à une charge
EP0220712A1 (fr) * 1985-10-30 1987-05-06 PIERI S.r.l. Procédé et appareil pour envelopper des charges avec un film étirable

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Publication number Priority date Publication date Assignee Title
US4862678A (en) * 1981-09-30 1989-09-05 International Packaging Machines, Inc. Constant tension stretch wrapping machine
US4524568A (en) * 1982-08-27 1985-06-25 Lantech, Inc. Power assisted rotatable film wrapping apparatus
US4953336A (en) * 1984-02-23 1990-09-04 Lantech, Inc. High tensile wrapping apparatus
US4722170A (en) * 1986-11-13 1988-02-02 Lantech, Inc. Upper guided lower driven stretch wrapping device
US5005335A (en) * 1988-03-14 1991-04-09 Fmc Corporation Stretch wrapping robotic palletizer
FI80418C (fi) * 1988-04-06 1990-06-11 Haloila M Oy Ab Anordning och foerfarande foer utbredning av en omslagsfilm vid inveckling.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750780A1 (de) * 1977-11-14 1979-05-17 Franpack Gmbh Verpackungsmasch Streckfolieneinschlagmaschine mit kompensiervorrichtung
US4458467A (en) * 1981-03-31 1984-07-10 Infra Pak (Dallas), Inc. Pretensioner for stretchable film web with dancer roller compensation
EP0152960A2 (fr) * 1984-02-23 1985-08-28 Lantech, Inc. Appareil rotatif d'enveloppement avec un film et procédé pour joindre une surenveloppe compressive à une charge
EP0220712A1 (fr) * 1985-10-30 1987-05-06 PIERI S.r.l. Procédé et appareil pour envelopper des charges avec un film étirable

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993024373A1 (fr) * 1992-06-02 1993-12-09 Minnesota Mining And Manufacturing Company Systeme distributeur a l'unite pour bande adhesive a decollement par etirement variable
US5352320A (en) * 1993-04-09 1994-10-04 Minnesota Mining And Manufacturing Company Manual tape dispensing apparatus
US5490642A (en) * 1993-04-09 1996-02-13 Minnesota Mining And Manufacturing Company Manual tape dispensing apparatus

Also Published As

Publication number Publication date
US5123230A (en) 1992-06-23
DE3941940C1 (fr) 1991-03-21

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