EP1110865B1 - Dispositif d'emballage pour appliquer un couvercle d'extrémité à un rouleau - Google Patents

Dispositif d'emballage pour appliquer un couvercle d'extrémité à un rouleau Download PDF

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Publication number
EP1110865B1
EP1110865B1 EP00126239A EP00126239A EP1110865B1 EP 1110865 B1 EP1110865 B1 EP 1110865B1 EP 00126239 A EP00126239 A EP 00126239A EP 00126239 A EP00126239 A EP 00126239A EP 1110865 B1 EP1110865 B1 EP 1110865B1
Authority
EP
European Patent Office
Prior art keywords
heating device
heating
press plate
front cover
end cover
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.)
Expired - Lifetime
Application number
EP00126239A
Other languages
German (de)
English (en)
Other versions
EP1110865A1 (fr
Inventor
Ludger Beier
Frank Rostek
Volker Schölzke
Franz Schwevers
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent GmbH
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 Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP1110865A1 publication Critical patent/EP1110865A1/fr
Application granted granted Critical
Publication of EP1110865B1 publication Critical patent/EP1110865B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B65B25/146—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles
    • B65B25/148—Jumbo paper rolls

Definitions

  • the invention relates to a packaging device for Attach a front cover to the front of one too packing roll with a press plate and a heating device acting on the front cover.
  • the invention is hereinafter in connection with the Packing a roll of paper, i.e. a roll from a wound paper web, described. but she is for comparable rolls that have to be packed, also applicable.
  • paper webs cut to the desired width and then wound up into paper rolls.
  • the roles are then provided with a peripheral packaging that usually protrudes somewhat from the end of the roll. This supernatant is then on the face the role and finally a so-called Outer end cover, which is simply referred to below "Front cover” is referred to, glued on.
  • a press plate is used, on which the End cover is held, for example with the help of Vacuum.
  • the press plate with the ones on it End covers will be on the front of the roll Brought plant and there with a predetermined, relative large pressure on the order of several tons, held for a predetermined time.
  • Front covers are currently used for this in many cases, the corresponding surface of which is a plastic coating, have in particular made of polyethylene or PE. This plastic layer is made by heating melted or at least melted and thus made sticky. Then if the front cover on the front of the Roll pressed and a fan is switched off, the the vacuum for sucking the front cover onto the Press plate created, then the front cover sticks the role firmly.
  • the invention has for its object the energy expenditure to reduce.
  • This task is the beginning of a device mentioned type in that the heating device from the side facing away from the press plate to the Front cover works.
  • the adhesive layer must usually be on a certain Cool down temperature. This cooling takes around the longer the larger the amount of heat stored.
  • the construction of the press plate greatly simplified. An energy supply through the press plate through is no longer necessary.
  • the heating device is preferably over when heating the press plate can be moved away. This has several Benefits. On the one hand, the heating device is the actual one Application process no longer gets in the way. To the others it can be chosen much smaller than the press plate itself. Nevertheless, it is ensured that all areas of the press plate and thus also the entire area of a front cover on it can be covered by the heater.
  • the heater is linear is.
  • the heating device has a certain extent both lengthways and crossways.
  • the term "linear" is intended to express that the heater is a much larger one Has length as width. With such a heating element you can then on the one hand (in the longitudinal direction) heat relatively large area at the same time one crosses the heating by an appropriate one Can cause movement of the heater.
  • the heating device preferably has a controlled one Drive on, depending on the heater from a predetermined heating profile over the Press plate moves. You can use it to do some Heat areas more or longer than others.
  • the heating power introduced is primarily proportional to that given off by the heating device Heating energy and inversely proportional to the relative speed between the heater and the End cover. The faster you get the heater over the front cover moves, the lower the heating.
  • the heating device sweeps over the first heated areas more slowly than the last heated areas.
  • the heating device sweeps over the first heated areas more slowly than the last heated areas.
  • the heating device is preferably in the longitudinal direction divided into several zones that can be controlled individually are. Energy savings can also be achieved in this way. Areas that are not an area of the Facing the front cover does not have to give up any energy. This would then be on the front cover or even on blast past the press plate without the desired one To achieve effect. In extreme cases, such Heat output even cause some damage.
  • the control depends on the end covers to be heated. Accordingly, the Diameter of the front cover and the position of the heating device relative to the front cover.
  • At least one Zone with at least two different heating outputs is operable. So this zone can not only anoder be turned off. It can do more or less Deliver heating energy. This allows an even more sensitive Control of the heating process.
  • the heating device has a rotary actuator on the heater pivoted about a pivot point that is outside the Press plates is arranged.
  • a pivotal movement is a relatively easy way to get around the heater over the entire press plate and thus over all surface areas where possibly a front cover could lie. The order the pivot point outside the press plate, that the heating device at the moment of pressing the front cover to the roll easily from the Press area can move out.
  • the advantage here is that the pivot point in the area a corner of a rectangle that is the Press plate circumscribes. This arrangement is relative space-saving.
  • the heater must be a length have slightly larger than the diameter of the press plate is. The heater can then in their Rest position are held substantially vertically, so that due to their small width they do not continue disturbs.
  • the heating device is a Has increasing heating power over its length, the depends on the distance to the fulcrum. So you wear the Fact that the movement of the heater relative to the front cover near the fulcrum is slower than the greatest distance from it. There with increasing dependence on the fulcrum the corresponding ones Paint over areas of the front cover faster , this faster movement must be done by a higher heating capacity can be compensated.
  • the heating device has a displacement drive.
  • the heating device can therefore, for example, from below upwards or from right to left over the press plate be performed. This enables a very simple one Control.
  • the heating device preferably has a heat radiation generating device on.
  • heat radiation infrared radiation is an example.
  • Thermal radiation can be relatively accurate align and with a high degree of efficiency on the to be heated Transfer plastic layer.
  • the wavelength of the thermal radiation is preferred here matched to polyethylene (PE). If knows the plastic with which the front cover is coated then you can put the heat radiation on this Vote plastic. Currently, most of the end caps are coated with polyethylene.
  • the heating device can be switched on Place the heated carrier medium on the front cover.
  • Carrier medium comes, for example, hot air or steam in question. This also enables the desired heating the plastic layer of the front cover.
  • FIG. 1 and 2 show a packing press 1, i.e. a Packing device for attaching a front cover 2 to the front of a only shown schematically Roll 3, which rests on two support rollers 4, 5.
  • the role 3 has previously been provided with a peripheral packaging, which protrudes axially beyond the end face 6 of the roller 3. This protrusion 7 is folded onto the end face 6.
  • a press plate 8 which is also used as a press plate attached to a carriage 9, the carriage 9 on a guideway 10 is movable relative to the roller 3.
  • a drive for moving and for pressing the press plate 8 against the end face 6 the roller 3 is a drive, not shown provided, for example a hydraulic cylinder.
  • the front cover 2 has on the role facing Side or surface of a coating 11 from a thermoplastic on, for example Polyethylene (PE).
  • a coating 11 heats up If the plastic melts on or on, it becomes sticky. If the front cover is in this state to the End face 6 of the roller 3 brought to the plant and there is pressed tight, then the front cover 2 glued the end of the roller 31
  • a heater 12 provided in the embodiment according to 1 and 2 is pivotable about a pivot point 13, the one in the lower right corner of a rectangle or Is arranged square that circumscribes the press plate 8.
  • the heating device can thus in the direction of a Arrow 14 pivoted over the press plate 8 become. It is separated by a space between the Roll 3 and the front cover 2 moves. In other words it will be over the faceplate at some point 2 moves before the front cover 2 to the system End face comes.
  • the heater 12 is linear or rod-shaped, so it has one essential greater length than width. If you don't need it is, it takes a dash-dotted line in Fig. 1 Rest position 15 in which they are in the press direction is arranged outside the press plate 8.
  • the heating device 12 is divided into several zones 16, which can be controlled individually. First of all, this means that each zone 16 individually on or off can be, i.e. each zone 16 can be independent of an adjacent zone heating power to the coating 11 of the front cover lying on the press plate 8 Submit 2. As can be seen from Fig. 1, the end covers 2 have different diameters exhibit. The individual zones are therefore under other depending on the diameter of each Controlled front cover 2 to be made sticky. A zone 16, which is not currently running over a front cover 2, does not give off heating energy either.
  • zones 16 continue are away from the pivot point 13, a greater heating power have than the zones closer to the fulcrum 13 lie.
  • the reason for this is that the on the end caps 2 transferred heating power inversely proportional to the speed at which the heater, more precisely the corresponding zone 16, one Covered area. This relative speed is at a greater distance from the fulcrum 13 naturally larger than near the fulcrum.
  • the heater 12 is driven by it 17 pivoted more slowly at the beginning of the movement than at The End.
  • the reason for this is that immediately the cooling process begins after heating.
  • the first would be heated Areas have already cooled down again and you run the risk of no uniform adhesive properties over the entire To get the surface of the front cover 2.
  • the areas of the faceplate that are heated first are supplied with more heating energy. This happens in the simplest case, that the heating device 12 is moved more slowly over these areas. This Areas are therefore initially given the heating a higher temperature than the ones subsequently heated Areas.
  • Heating can be done, for example, by infrared emitters take place or another light source or Source of electromagnetic waves, their wavelength for optimal energy transfer to the coating 11 is matched. The aim is to use the coating 11 to make the energy consumption as sticky as possible.
  • a heater with a carrier medium for example Provide hot air or steam. In this The carrier medium falls through the heating device 12 blown onto the front cover 2. After all, you can also provide that in principle the heating by Radiation takes place, however, in particularly strongly heated Areas, for example at the beginning of the Movement of the heater 12 an additional heating with hot air or steam or vice versa.
  • FIGS. 3 and 4 show a modified embodiment, with one exception to that of FIGS. 1 and 2 equivalent.
  • the heater 12 is no longer around a pivot point 13 is pivotable, but is along arrows 18 (in this case vertical) over the press plate 8 and the front cover located thereon 2 led.
  • Linear drives 19 are provided for this purpose, which raise the heater 12 accordingly.
  • the linear drives 19 can also be controlled in this way be that the movement of the heater 12 at the beginning of sweeping the press plate 8 more slowly is as at the end of a front cover 2.
  • the individual zones 16 of the heater 12 are dependent whether there is a front cover under them, on or off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Package Closures (AREA)

Claims (14)

  1. Dispositif d'emballage pour appliquer un couvercle d'extrémité (2) sur le côté d'extrémité d'un rouleau à emballer, comprenant une plaque de pressage (8) et un dispositif de chauffage (12) agissant sur le couvercle d'extrémité, caractérisé en ce que le dispositif de chauffage (12) agit depuis le côté opposé à la plaque de pressage (8) sur le couvercle d'extrémité (2).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de chauffage (12) peut se déplacer en avant sur la plaque de pressage (8) lors du chauffage.
  3. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de chauffage (12) est réalisé avec une forme linéaire.
  4. Dispositif selon la revendication 2 ou 3, caractérisé en ce que le dispositif de chauffage présente un entraínement commandé (17, 19) qui déplace le dispositif de chauffage sur la plaque de pressage (8) en fonction d'un profil de chauffage prédéterminé.
  5. Dispositif selon la revendication 4, caractérisé en ce que le dispositif de chauffage (12) balaye les régions chauffées en premier plus lentement que les régions chauffées en dernier.
  6. Dispositif selon l'une quelconque des revendications 2 à 5, caractérisé en ce que le dispositif de chauffage (12) est divisé dans la direction longitudinale en plusieurs zones (16) qui peuvent être commandées séparément.
  7. Dispositif selon la revendication 6, caractérisé en ce qu'au moins une zone (16) peut être activée avec au moins deux puissances de chauffage différentes.
  8. Dispositif selon l'une quelconque des revendications 2 à 7, caractérisé en ce que le dispositif de chauffage (12) présente un entraínement de pivotement (17) qui fait pivoter le dispositif de chauffage (12) autour d'un pivot (13) qui est disposé en dehors de la plaque de pressage (8).
  9. Dispositif selon la revendication 8, caractérisé en ce que le pivot (13) est disposé dans la région d'un coin d'un rectangle qui entoure la plaque de pressage (8).
  10. Dispositif selon la revendication 8 ou 9, caractérisé en ce que le dispositif de chauffage (12) présente une puissance de chauffage croissant sur sa longueur, qui dépend de la distance au pivot (13).
  11. Dispositif selon l'une quelconque des revendications 2 à 7, caractérisé en ce que le dispositif de chauffage (12) présente un entraínement de coulissement (19).
  12. Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le dispositif de chauffage (12) présente un dispositif de production de rayonnement thermique.
  13. Dispositif selon la revendication 12, caractérisé en ce que la longueur d'onde du rayonnement thermique est adaptée au polyéthylène (PE).
  14. Dispositif selon l'une quelconque des revendications 1 à 13, caractérisé en ce que le dispositif de chauffage (12) oriente un milieu porteur chauffé sur le couvercle d'extrémité (2).
EP00126239A 1999-12-21 2000-12-01 Dispositif d'emballage pour appliquer un couvercle d'extrémité à un rouleau Expired - Lifetime EP1110865B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19961667 1999-12-21
DE19961667A DE19961667B4 (de) 1999-12-21 1999-12-21 Verpackungsvorrichtung zum Anbringen eines Stirndeckels

Publications (2)

Publication Number Publication Date
EP1110865A1 EP1110865A1 (fr) 2001-06-27
EP1110865B1 true EP1110865B1 (fr) 2004-09-22

Family

ID=7933570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126239A Expired - Lifetime EP1110865B1 (fr) 1999-12-21 2000-12-01 Dispositif d'emballage pour appliquer un couvercle d'extrémité à un rouleau

Country Status (2)

Country Link
EP (1) EP1110865B1 (fr)
DE (2) DE19961667B4 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI63551C (fi) * 1982-03-08 1983-07-11 Yhtyneet Paperitehtaat Oy Foerfarande foer montering av aendlappar i aendorna av en rulle som skall foerpackas pao en foerpackningslinje
US4820374A (en) * 1984-08-20 1989-04-11 Fortifiber Corporation Roll header platen
FI864854A (fi) * 1986-11-28 1988-05-29 Waertsilae Oy Ab Foerfarande och anordning foer foerpackning av en rulle, i synnerhet en pappersrulle.
FI89149C (fi) * 1991-02-12 1996-09-11 Valmet Paper Machinery Inc Foerfarande och anordning foer emballering av rullar, i synnerhet pappersrullar, med foerpackningsomslag
US5761881A (en) * 1995-05-10 1998-06-09 Wall; Benjamin Process and apparatus for wrapping paper rolls

Also Published As

Publication number Publication date
EP1110865A1 (fr) 2001-06-27
DE50007875D1 (de) 2004-10-28
DE19961667A1 (de) 2001-07-12
DE19961667B4 (de) 2004-04-22

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