EP1063171B1 - Method and apparatus for packaging rolls, in particular of printing paper - Google Patents

Method and apparatus for packaging rolls, in particular of printing paper Download PDF

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Publication number
EP1063171B1
EP1063171B1 EP00105957A EP00105957A EP1063171B1 EP 1063171 B1 EP1063171 B1 EP 1063171B1 EP 00105957 A EP00105957 A EP 00105957A EP 00105957 A EP00105957 A EP 00105957A EP 1063171 B1 EP1063171 B1 EP 1063171B1
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EP
European Patent Office
Prior art keywords
roll
packaging sheet
elongate packaging
elongate
incision
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
EP00105957A
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German (de)
French (fr)
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EP1063171A1 (en
Inventor
Heinz Schneider
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Enterprises International Inc
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Enterprises International Inc
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Publication of EP1063171A1 publication Critical patent/EP1063171A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00Packaging other articles presenting special problems
    • B65B25/14Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B65B25/146Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles
    • B65B25/148Jumbo paper rolls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B11/00Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
    • B65B11/04Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material the articles being rotated

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a Device according to the preamble of claim 6.
  • Such a method and such a device are known from US-A-3 863 425 GB-B-1 429 445).
  • the method of the type mentioned has the advantage that a Packaging web of a certain small width used for rolls of any width can be. This simplifies storage and handling of Packaging web rolls.
  • the method of the type mentioned has the advantage that the resulting straight wraps in the end areas of the packaged Roll these end areas evenly and, if desired, evenly protrude beyond the roll ends, so that they are then evenly radial can be turned inside.
  • EP-A-0 004 471 a device is known which corresponds to the preamble of Claim 6 corresponds with the restriction that the packaging web is not provided alternatively, instead of at an acute angle, also at right angles to the axis of the packaged Role.
  • This known device has a cutting device To cut the packaging line, a knife that runs along a cross is manually movable over the stretching guide. To this Purpose is the knife connected by a rope with a handle, and in opposite Direction with a take-up drum that has a return spring for take-up the rope, and thus to retrieve the knife after it has been manually operated, assigned.
  • the invention has for its object a method and an apparatus for Pack a roll with a packaging web whose width is less than the length
  • the role is to be designed in such a way that the roll is wrapped around essentially without wrinkles becomes, even if the packaging web is not elastic and not shrinkable is, especially if it consists of ordinary wrapping paper.
  • the device shown has the task of a cylindrical Pack roll 10, its axis A and its length L in Fig. 3rd to 5 are shown.
  • the role 10 consists of, for example Printing paper and has a first one in the above drawings left end 12 and a second, right end 14, both as flat end faces are formed.
  • the role is in the company 10 on two parallel support rollers 16 and 18, which in the sense of Arrows in Fig. 1 are driven.
  • a packaging web 20 is used to pack the roll 10 Wrapping paper, the width B of which is considerably smaller than the length L of roll 10.
  • This packaging web 20 is first according to Fig. 3 at right angles to the axis A of the roller 10, while this is rotated, the cylindrical outer surface of the roller in such a way supplied that one consisting of preferably several turns first straight wrap 22 is formed. From the same packaging line 20 will later be shown in FIG. 5 in the area of the second end 14 of the roll 10 a second straight wrap 24 is formed. Both straight windings 22 and 24 protrude by approximately each half the width B of the packaging web 20 over the associated one End 12 or 14 of the roll 10; so it will be a first Overhang 26 or a second overhang 28 approximately from the Width B / 2 formed.
  • the two straight wraps 22 and 24 are as follows through a helical winding 30 of the roll 10 connected with each other: As soon as the first straight winding 22 is almost completed, is in the packaging web 20 on their way to the roll 10 generates first incision 32, which of the second end 14 of the Roll 10 facing edge of the packaging web 20 starts out transverse to their longitudinal direction over the greater part of their Width B extends and ends in the part of the packaging web 20, which then form the first overhang 26, ie beyond of the first end 12 of the roll 10 will lie.
  • the roll 10 arrives at the first incision 32 according to FIG. 4 a place where it is roughly in the same vertical plane lies like the axis A of the roller. Now it is on roll 10 tapered part of the packaging web 20 inclined so that it 4 an acute angle ⁇ with the Axis A forms.
  • the packaging web 20 is parallel to the axis A further rotating roller 10 on its peripheral speed matched, laterally offset, so that the helical wrap 30 arises.
  • the angle ⁇ is chosen so that the individual Windings of the helical wrap 30 overlap each other.
  • a relatively small overlap is shown in FIG. 5; however, the overlap can be significantly larger, for example half the width B of the packaging web 20.
  • a second incision 34 is made in the packaging web 20, the edge facing the first end 12 of the roller 10 the packaging web runs out, transversely to its longitudinal direction extends over the greater part of their width B and in one Area ends, which then form the second projection 24 becomes. Then the part of the packaging web which runs towards the roll 10 20 again set at a right angle to axis A, so that with continued rotation of the roller 10, the second just winding 24 with its overhang 28 is formed.
  • the two incisions 32 and 34 prevent that in the packaging path 20 annoying folds occur when the angle the Packaging web on its way to roll 10 with its axis A at the transition from the first straight wrap 22 to the helical wrap 30, and at the transition from this changed to the second straight wrap 24 according to FIG. 4 or FIG. 5 becomes.
  • a first overlap field 36 and a respectively second overlap field 38 both of which are approximately triangular.
  • two of the first incision 32 or delimited by the second incision 34 triangular surfaces of the packaging web 20 one above the other without To form wrinkles.
  • This desired stacking can be done with Need to be enforced by the affected areas of the Packaging web 20 of one or more air flows or by sucking in opposite directions out of the plane be deflected in the process of making the part that separates them Incisions 32 and 34 were located.
  • the incisions 32 and 34 do not accidentally tear away, they each end in a punched circular hole 40. Beyond this hole 40 may be in the extension of the relevant incision 32 and 34 in the described Changes in the feed direction of the packaging line 20 small Wrinkles; but these are in the supernatant 26 and 28, respectively in a later step in the usual way radially inwards is handled. The wrinkles mentioned remain without any influence on the smoothness and roundness of the wrapped surface roll 10.
  • the device shown schematically in the drawings is suitable with a carriage 42 parallel to the two Back-up rolls 16 and 18 and thus parallel to the axis A of the roll 10 along guides 44 is controlled displaceable.
  • the sled 42 carries a roll-off device 46 on which a packaging web roll 50 axially parallel to the roll 10 to be packed and a pair of drive rollers 52 and 54, which is the packaging web running off the packaging web roll 50 20 with precisely controllable speed in the direction on the roll 10 to be packed perpendicular to its axis A promote.
  • the drive rollers 52 and 54 can be controlled that their peripheral speed is optionally the same size, slightly less or slightly greater than the peripheral speed of the packing roll 10 is.
  • the packaging line can be 20 on the way from the drive rollers 52 and 54 and the roll 10 either tighten or relieve from train.
  • the packaging web 20 each time they is provided with an incision 32 or 34, and at least until the overlap field belonging to the relevant incision 36 or 38 completely on the roll to be packed 10 abuts, driven at a speed that is something is greater than the peripheral speed of the roll.
  • the carriage 42 carries a cutting device, the one Knife roller 56 and a complementary counter-knife roller 58 having. These two rollers 56 and 58 also extend parallel to the axis A of the roll 10 to be packed and are synchronously driven by a stepper motor as well as adjustable towards and away from each other.
  • the knife roller 56 carries three parallel to its axis, 120 ° against each other offset knife, namely a usable over the entire Length of the knife roller continuous cutting knife 60 and a first Cutting knife 62, which is used to make the first incision 32 is provided and accordingly from one first end of the usable length of the knife roller 56 only up to extends near its second end, and a second incision knife 64, which is used to make the second incision 34 is provided and accordingly from the second end of the Knife roller 56 extends only in the vicinity of its first end.
  • Each of the two cutting knives 62 and 64 ends in a punch 66 or 68 for punching the hole 40 at the end of the first incision 32 and the second incision 34.
  • the carriage 42 carries a feed device 70 which the Determines the angle at which the packaging web 20 of the lateral surface the roll 10 is fed.
  • the feed device 70 has a deflecting roller 72 leading the packaging web 20 to the is freely rotatable on an axle 74, which in turn on a U-shaped support bracket in the view according to FIG. 2 76 is attached.
  • the bracket 76 is at one end, in Fig. 2 left, mounted on a frame 78 which is on the carriage 42 is attached and the support bracket 76 near its opposite end supporting pneumatic or hydraulic Adjustment cylinder 80 carries.
  • the support bracket 76, and thus the deflection roller 72, from a horizontal to the axis A of the roller 10 parallel position, used for winding the straight wraps 22 and 24 serves, in an inclined position, the 1 and 2 as the upper position with dash-dotted lines is indicated and causes that running over the deflection roller 72 Packaging web 20, the outer surface of the to be packaged Roll 10 reached at the selectable acute angle ⁇ to the axis A. So that the required tilting of the deflection roller 72 exactly predetermined and then in each case by pressing the Adjusting cylinder 80 reached quickly and just as quickly again can be left is a separate one from the adjustment cylinder Control device is provided, the one adjusting motor 82 and one of this controlled stop 84 for the bracket 76.
  • Adhesion mediation device 86 may be arranged, for example an adhesive sprayer that is in front of and / or behind each the incisions 32 and 34 apply adhesive so that each one Overlap field 36 or 38 forming surfaces of the packaging web 20 are glued together.

Description

Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Anspruchs 1 sowie eine Vorrichtung nach dem Oberbegriff des Anspruchs 6.The invention relates to a method according to the preamble of claim 1 and a Device according to the preamble of claim 6.

Ein solches Verfahren sowie eine solche Vorrichtung sind aus US-A-3 863 425 (entspricht GB-B-1 429 445) bekannt. Gegenüber dem weit verbreiteten Verfahren des Verpackens einer Rolle mit einer Verpackungsbahn, deren Breite größer ist als die Breite der Rolle, hat das Verfahren der genannten Gattung den Vorteil, dass eine Verpackungsbahn einer bestimmten geringen Breite für beliebig breite Rollen verwendet werden kann. Dadurch vereinfachen sich Lagerhaltung und Handhabung von Verpackungsbahnrollen. Gegenüber ebenfalls bekannten Verfahren, bei denen eine Rolle von einem Ende zum anderen nur wendelförmig mit einer Verpackungsbahn umwickelt wird, hat das Verfahren der eingangs genannten Gattung den Vorteil, dass die dabei entstehenden geraden Umwicklungen in den Endbereichen der zu verpackenden Rolle diese Endbereiche gleichmäßig abdecken und, falls erwünscht, gleichmäßig über die Rollenenden hinausragen, sodass sie anschließend gleichmäßig radial nach innen umgelegt werden können.Such a method and such a device are known from US-A-3 863 425 GB-B-1 429 445). Compared to the widespread process of Packaging a roll with a packaging web whose width is larger than that Width of the roll, the method of the type mentioned has the advantage that a Packaging web of a certain small width used for rolls of any width can be. This simplifies storage and handling of Packaging web rolls. Compared to also known methods in which a Roll from end to end only helically with a packaging web is wrapped, the method of the type mentioned has the advantage that the resulting straight wraps in the end areas of the packaged Roll these end areas evenly and, if desired, evenly protrude beyond the roll ends, so that they are then evenly radial can be turned inside.

Problematisch sind allerdings bei einem Verfahren der eingangs genannten Gattung die Übergänge zwischen der ersten geraden Umwicklung und der wendelförmigen Umwicklung einerseits sowie zwischen der wendelförmigen Umwicklung und der zweiten geraden Umwicklung andererseits. An diesen Übergängen entstehen bei dem aus US-A-3 863 425 bekannten Verfahren Überschüsse der Verpackungsbahn, die dazu neigen, unregelmäßige Falten zu bilden, die zwar im allgemeinen beim weiteren Umwickeln der Rolle verdeckt werden, aber deren äußeres Erscheinungsbild und deren Rundheit doch beeinträchtigen und vor allem in den zehn bis zwanzig äußeren Lagen der Rolle, wenn es sich um eine Papierrolle handelt, Eindrücke entstehen lassen können, die diese Lagen unbrauchbar machen. Um dieser Neigung zur Faltenbildung entgegenzuwirken, wird gemäß US-A-3 863 425 eine Verpackungsbahn aus Schrumpffolie verwendet, die an den genannten Übergängen mit Heißluft zum Schrumpfen gebracht wird. Zum Abtrennen der Verpackungsbahn nach dem Umwickeln der Rolle wird ein aufgrund seines elektrischen Widerstands erhitzter Draht verwendet.However, problems with a method of the type mentioned at the outset are problematic the transitions between the first straight wrap and the helical one Wrapping on the one hand and between the helical wrap and the second straight wrap on the other hand. At these transitions arise with the processes known from US-A-3 863 425 surpluses of the packaging web which tend to form irregular folds, which, in general, continue to develop Wrapping the roll are covered, but their external appearance and their Roundness affect and especially in the ten to twenty outer Layers of the roll, if it is a paper roll, leave impressions can make these locations unusable. To this tendency to wrinkle To counteract this, a packaging web is made according to US-A-3 863 425 Shrink film used at the transitions mentioned with hot air for Shrinkage is brought. For cutting off the packaging web after wrapping The wire becomes a wire that is heated due to its electrical resistance used.

Eine andere, aus EP-A-0 765 809 bekannte Lösung des Problems, beim Verpacken einer Rolle mit einer wendelförmigen Umwicklung und zwei geraden Umwicklungen Falten zu vermeiden, besteht darin, dass auf der Rolle zuerst eine wendelförmige Umwicklung mit einer ersten Verpackungsbahn aus Packpapier erzeugt wird, wobei in den Endbereichen der Rolle dreieckige unbedeckte Abschnitte frei bleiben, und dass anschließend im Bereich der beiden Enden der Rolle je eine gerade Umwicklung mit einer zweiten Verpackungsbahn aus Packpapier gebildet wird. Diese Vorgehensweise ist aber im Vergleich mit der aus US-A-3 863 425 bekannten umständlich und zeitraubend.Another solution to the packaging problem known from EP-A-0 765 809 a roll with a helical wrap and two straight wraps Avoiding wrinkles is to first make a spiral on the roll Wrapping is generated with a first packaging web of wrapping paper, wherein in the end areas of the roll triangular uncovered sections remain free, and that then a straight wrap in the area of the two ends of the roll a second packaging web of wrapping paper is formed. This approach but is cumbersome and time consuming compared to that known from US-A-3 863 425.

Schließlich ist aus EP-A-0 004 471 eine Vorrichtung bekannt, die dem Oberbegriff des Anspruchs 6 mit der Einschränkung entspricht, dass nicht vorgesehen ist, die Verpackungsbahn wahlweise anstatt spitzwinklig auch rechtwinklig zur Achse der zu verpackenden Rolle zuzuführen. Diese bekannte Vorrichtung hat als Schneideinrichtung zum Durchtrennen der Verpackungsbahn ein Messer, das entlang einer sich quer über die Verpackungsbahn entstreckenden Führung manuell beweglich ist. Zu diesem Zweck ist das Messer durch ein Seil mit einem Handgriff verbunden, und in entgegengesetzter Richtung mit einer Aufwickeltrommel, der eine Rückholfeder zum Aufwickeln des Seils, und somit zum Rückholen des Messers nach dessen manueller Betätigung, zugeordnet ist.Finally, from EP-A-0 004 471 a device is known which corresponds to the preamble of Claim 6 corresponds with the restriction that the packaging web is not provided alternatively, instead of at an acute angle, also at right angles to the axis of the packaged Role. This known device has a cutting device To cut the packaging line, a knife that runs along a cross is manually movable over the stretching guide. To this Purpose is the knife connected by a rope with a handle, and in opposite Direction with a take-up drum that has a return spring for take-up the rope, and thus to retrieve the knife after it has been manually operated, assigned.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine Vorrichtung zum Verpacken einer Rolle mit einer Verpackungsbahn, deren Breite geringer als die Länge der Rolle ist, derart zu gestalten, dass die Rolle im wesentlichen faltenfrei umwickelt wird, auch wenn die Verpackungsbahn nicht elastisch und nicht schrumpffähig ist, insbesondere wenn sie aus gewöhnlichem Packpapier besteht.The invention has for its object a method and an apparatus for Pack a roll with a packaging web whose width is less than the length The role is to be designed in such a way that the roll is wrapped around essentially without wrinkles becomes, even if the packaging web is not elastic and not shrinkable is, especially if it consists of ordinary wrapping paper.

Die Aufgabe ist erfindungsgemäß mit dem im Anspruch 1 beschriebenen Verfahren und mit der im Anspruch 6 beschriebenen Vorrichtung gelöst. Vorteilhafte Weiterbildungen ergeben sich aus den Unteransprüchen.The object is according to the invention with the method described in claim 1 and solved with the device described in claim 6. Advantageous further training result from the subclaims.

Ein Ausführungsbeispiel der Erfindung wird im folgenden anhand schematischer Zeichnungen mit weiteren Einzelheiten erläutert. Es zeigen:

Fig. 1
eine Seitenansicht einer erfindungsgemäßen Vorrichtung zum Verpacken einer Rolle mit einer Verpackungsbahn,
Fig. 2
die Ansicht in Richtung des Pfeils II in Fig. 1,
Fig. 3
die Draufsicht der Vorrichtung am Ende des Wickelns einer ersten geraden Umwicklung der Rolle,
Fig. 4
die Draufsicht der Vorrichtung zu Beginn des Wickelns einer wendelförmigen Umwicklung der Rolle,
Fig. 5
die Draufsicht der Vorrichtung zu Beginn des Wickelns einer zweiten geraden Umwicklung der Rolle,
Fig. 6
den vergrößerten Ausschnitt VI in Fig. 3,
Fig. 7
den Ausschnitt VII in Fig. 4,
Fig. 8
den Ausschnitt VIII in Fig. 5, und
Fig. 9
eine gegenüber den vorangegangenen Zeichnungen stark vergrößerte Schrägansicht einer Messerwalze der Vorrichtung.
An embodiment of the invention is explained below with the aid of schematic drawings with further details. Show it:
Fig. 1
2 shows a side view of a device according to the invention for packaging a roll with a packaging web,
Fig. 2
the view in the direction of arrow II in Fig. 1,
Fig. 3
the top view of the device at the end of winding a first straight wrapping of the roll,
Fig. 4
the top view of the device at the beginning of the winding of a helical wrapping of the roll,
Fig. 5
the top view of the device at the start of winding a second straight winding of the roll,
Fig. 6
the enlarged section VI in Fig. 3,
Fig. 7
the section VII in Fig. 4,
Fig. 8
the section VIII in Fig. 5, and
Fig. 9
a compared to the previous drawings greatly enlarged oblique view of a knife roller of the device.

Die dargestellte Vorrichtung hat die Aufgabe, eine zylindrische Rolle 10 zu verpacken, deren Achse A und deren Länge L in Fig. 3 bis 5 dargestellt sind. Die Rolle 10 besteht beispielsweise aus Druckpapier und hat ein erstes, in den genannten Zeichnungen linkes Ende 12 sowie ein zweites, rechtes Ende 14, die beide als ebene Stirnflächen ausgebildet sind. Im Betrieb liegt die Rolle 10 auf zwei parallelen Stützwalzen 16 und 18, die im Sinne der Pfeile in Fig. 1 angetrieben sind.The device shown has the task of a cylindrical Pack roll 10, its axis A and its length L in Fig. 3rd to 5 are shown. The role 10 consists of, for example Printing paper and has a first one in the above drawings left end 12 and a second, right end 14, both as flat end faces are formed. The role is in the company 10 on two parallel support rollers 16 and 18, which in the sense of Arrows in Fig. 1 are driven.

Zum Verpacken der Rolle 10 dient eine Verpackungsbahn 20 aus Packpapier, deren Breite B erheblich geringer ist als die Länge L der Rolle 10. Diese Verpackungsbahn 20 wird zunächst gemäß Fig. 3 im rechten Winkel zur Achse A der Rolle 10, während diese gedreht wird, der zylindrischen Mantelfläche der Rolle derart zugeführt, daß eine aus vorzugsweise mehreren Windungen bestehende erste gerade Umwicklung 22 entsteht. Aus derselben Verpakkungsbahn 20 wird später gemäß Fig. 5 im Bereich des zweiten Endes 14 der Rolle 10 eine zweite gerade Umwicklung 24 gebildet. Beide geraden Umwicklungen 22 und 24 ragen um ungefähr jeweils die halbe Breite B der Verpackungsbahn 20 über das zugehörige Ende 12 bzw. 14 der Rolle 10 hinaus; es wird also ein erster Überstand 26 bzw. ein zweiter Überstand 28 ungefähr von der Breite B/2 gebildet. Die beiden geraden Umwicklungen 22 und 24 sind durch eine wendelförmige Umwicklung 30 der Rolle 10 folgendermaßen miteinander verbunden: Sobald die erste gerade Umwicklung 22 nahezu fertiggestellt ist, wird in der Verpackungsbahn 20 auf deren Weg zur Rolle 10 ein erster Einschnitt 32 erzeugt, der vom dem zweiten Ende 14 der Rolle 10 zugewandten Rand der Verpackungsbahn 20 ausgeht, sich quer zu deren Längsrichtung über den größeren Teil von deren Breite B erstreckt und in dem Teil der Verpackungsbahn 20 endet, der anschließend den ersten Überstand 26 bilden, also jenseits des ersten Endes 12 der Rolle 10 liegen wird. Beim weiteren Drehen der Rolle 10 gelangt der erste Einschnitt 32 gemäß Fig. 4 an eine Stelle, an der er ungefähr in derselben senkrechten Ebene liegt wie die Achse A der Rolle. Nun wird der auf die Rolle 10 zulaufende Teil der Verpackungsbahn 20 schräggestellt, so daß er in der Draufsicht gemäß Fig. 4 einen spitzen Winkel α mit der Achse A bildet.A packaging web 20 is used to pack the roll 10 Wrapping paper, the width B of which is considerably smaller than the length L of roll 10. This packaging web 20 is first according to Fig. 3 at right angles to the axis A of the roller 10, while this is rotated, the cylindrical outer surface of the roller in such a way supplied that one consisting of preferably several turns first straight wrap 22 is formed. From the same packaging line 20 will later be shown in FIG. 5 in the area of the second end 14 of the roll 10 a second straight wrap 24 is formed. Both straight windings 22 and 24 protrude by approximately each half the width B of the packaging web 20 over the associated one End 12 or 14 of the roll 10; so it will be a first Overhang 26 or a second overhang 28 approximately from the Width B / 2 formed. The two straight wraps 22 and 24 are as follows through a helical winding 30 of the roll 10 connected with each other: As soon as the first straight winding 22 is almost completed, is in the packaging web 20 on their way to the roll 10 generates first incision 32, which of the second end 14 of the Roll 10 facing edge of the packaging web 20 starts out transverse to their longitudinal direction over the greater part of their Width B extends and ends in the part of the packaging web 20, which then form the first overhang 26, ie beyond of the first end 12 of the roll 10 will lie. When turning further the roll 10 arrives at the first incision 32 according to FIG. 4 a place where it is roughly in the same vertical plane lies like the axis A of the roller. Now it is on roll 10 tapered part of the packaging web 20 inclined so that it 4 an acute angle α with the Axis A forms.

Von nun an wird die Verpackungsbahn 20 parallel zur Achse A der sich weiter drehenden Rolle 10, auf deren Umfangsgeschwindigkeit abgestimmt, seitlich versetzt, so daß die wendelförmige Umwicklung 30 entsteht. Der Winkel α ist so gewählt, daß die einzelnen Windungen der wendelförmigen Umwicklung 30 einander überlappen. In Fig. 5 ist eine verhältnismäßig geringe Überlappung dargestellt; die Überlappung kann jedoch erheblich größer sein, beispielsweise die Hälfte der Breite B der Verpackungsbahn 20 betragen.From now on, the packaging web 20 is parallel to the axis A further rotating roller 10 on its peripheral speed matched, laterally offset, so that the helical wrap 30 arises. The angle α is chosen so that the individual Windings of the helical wrap 30 overlap each other. A relatively small overlap is shown in FIG. 5; however, the overlap can be significantly larger, for example half the width B of the packaging web 20.

Kurz bevor die wendelförmige Umwicklung 30 fertiggestellt ist, wird in der Verpackungsbahn 20 ein zweiter Einschnitt 34 erzeugt, der vom dem ersten Ende 12 der Rolle 10 zugewandten Rand der Verpackungsbahn ausgeht, sich quer zu deren Längsrichtung über den größeren Teil von deren Breite B erstreckt und in einem Bereich endet, der anschließend den zweiten Überstand 24 bilden wird. Dann wird der auf die Rolle 10 zulaufende Teil der Verpakkungsbahn 20 wieder auf einen rechten Winkel zur Achse A eingestellt, so daß bei fortgesetzter Drehung der Rolle 10 die zweite gerade Umwicklung 24 mit ihrem Überstand 28 entsteht.Shortly before the helical wrap 30 is completed, a second incision 34 is made in the packaging web 20, the edge facing the first end 12 of the roller 10 the packaging web runs out, transversely to its longitudinal direction extends over the greater part of their width B and in one Area ends, which then form the second projection 24 becomes. Then the part of the packaging web which runs towards the roll 10 20 again set at a right angle to axis A, so that with continued rotation of the roller 10, the second just winding 24 with its overhang 28 is formed.

Die beiden Einschnitte 32 und 34 verhindern, daß in der Verpakkungsbahn 20 störende Falten entstehen, wenn der Winkel, den die Verpackungsbahn auf ihrem Weg zur Rolle 10 mit deren Achse A einschließt, beim Übergang von der ersten geraden Umwicklung 22 zur wendelförmigen Umwicklung 30, und beim Übergang von dieser zur zweiten geraden Umwicklung 24 gemäß Fig. 4 bzw. Fig. 5 geändert wird. Bei diesen Winkeländerungen entsteht dank der beiden Einschnitte 32 und 34 ein erstes Überlappungsfeld 36 bzw. ein zweites Überlappungsfeld 38, die beide ungefähr dreieckig sind. In diesen Überlappungsfeldern 36 und 38 legen sich je zwei vom ersten Einschnitt 32 bzw. vom zweiten Einschnitt 34 begrenzte dreieckige Flächen der Verpackungsbahn 20 übereinander, ohne Falten zu bilden. Dieses erwünschte Übereinanderlegen kann bei Bedarf dadurch erzwungen werden, daß die betroffenen Flächen der Verpackungsbahn 20 von einem oder mehreren Luftströmen oder durch Ansaugen in entgegengesetzten Richtungen aus der Ebene ausgelenkt werden, in der sie beim Herstellen des sie trennenden Einschnitts 32 bzw. 34 gelegen haben.The two incisions 32 and 34 prevent that in the packaging path 20 annoying folds occur when the angle the Packaging web on its way to roll 10 with its axis A at the transition from the first straight wrap 22 to the helical wrap 30, and at the transition from this changed to the second straight wrap 24 according to FIG. 4 or FIG. 5 becomes. With these changes in angle arises thanks to the two Incisions 32 and 34 a first overlap field 36 and a respectively second overlap field 38, both of which are approximately triangular. In each of these overlap fields 36 and 38, two of the first incision 32 or delimited by the second incision 34 triangular surfaces of the packaging web 20 one above the other without To form wrinkles. This desired stacking can be done with Need to be enforced by the affected areas of the Packaging web 20 of one or more air flows or by sucking in opposite directions out of the plane be deflected in the process of making the part that separates them Incisions 32 and 34 were located.

Damit die Einschnitte 32 und 34 nicht unbeabsichtigt weiterreißen, enden sie in je einem eingestanzten kreisförmigen Loch 40. Jenseits dieses Lochs 40 können sich zwar in der Verlängerung des betreffenden Einschnittes 32 bzw. 34 bei den beschriebenen Änderungen der Zulaufrichtung der Verpackungsbahn 20 kleine Fältchen bilden; diese liegen aber im Überstand 26 bzw. 28, der in einem späteren Arbeitsgang in üblicher Weise radial nach innen umgeschlagen wird. Die genannten Fältchen bleiben somit ohne jeden Einfluß auf die Glätte und Rundheit der umwickelten Mantelfläche der Rolle 10.So that the incisions 32 and 34 do not accidentally tear away, they each end in a punched circular hole 40. Beyond this hole 40 may be in the extension of the relevant incision 32 and 34 in the described Changes in the feed direction of the packaging line 20 small Wrinkles; but these are in the supernatant 26 and 28, respectively in a later step in the usual way radially inwards is handled. The wrinkles mentioned remain without any influence on the smoothness and roundness of the wrapped surface roll 10.

Wenn darauf geachtet wird, daß die Verpackungsbahn 20 nach dem Herstellen des ersten Einschnittes 20 und später des zweiten Einschnittes 34 solange nicht mit erheblichen Zugkräften belastet wird, bis das zugehörige Überlappungsfeld 36 bzw. 38 gebildet und die Rolle 10 ein Stück weitergedreht worden ist, dann kann auf eine zusätzliche Sicherung der Überlappungsfelder 36 und 38 verzichtet werden. Im allgemeinen ist es jedoch vorteilhaft, die vom ersten Einschnitt 32 bzw. vom zweiten Einschnitt 34 begrenzten, ein Überlappungsfeld 36 bzw. 38 bildenden Flächen der Verpackungsbahn 30 miteinander zu verkleben. If care is taken that the packaging web 20 after the Making the first incision 20 and later the second Notch 34 as long as not burdened with significant tensile forces is formed until the associated overlap field 36 or 38 and the roller 10 has been turned a little further, then can be an additional backup of the overlap fields 36th and 38 are waived. In general, however, it is advantageous that of the first incision 32 or of the second incision 34 delimited surfaces forming an overlap field 36 or 38 to glue the packaging web 30 together.

Zum Durchführen des im vorstehenden beschriebenen Verfahrens eignet sich die in den Zeichnungen schematisch dargestellte Vorrichtung mit einem Schlitten 42, der parallel zu den beiden Stützwalzen 16 und 18 und somit parallel zur Achse A der Rolle 10 längs Führungen 44 gesteuert verschiebbar ist. Der Schlitten 42 trägt eine Abrollvorrichtung 46, auf der eine Verpackungsbahnrolle 50 achsparallel zur zu verpackenden Rolle 10 gelagert ist, und ein Paar zur Achse A parallele Antriebswalzen 52 und 54, welche die von der Verpackungsbahnrolle 50 ablaufende Verpackungsbahn 20 mit feinsteuerbarer Geschwindigkeit in Richtung auf die zu verpackende Rolle 10 rechtwinklig zu deren Achse A fördern. Die Antriebswalzen 52 und 54 lassen sich so steuern, daß ihre Umfangsgeschwindigkeit wahlweise gleichgroß, etwas geringer oder etwas größer als die Umfangsgeschwindigkeit der zu verpackenden Rolle 10 ist. Dementsprechend läßt sich die Verpakkungsbahn 20 auf dem Weg von den Antriebswalzen 52 und 54 und der Rolle 10 wahlweise straffen oder von Zug entlasten. Zweckmäßigerweise wird die Verpackungsbahn 20 jeweils dann, wenn sie mit einem Einschnitt 32 oder 34 versehen wird, und mindestens solange, bis das zu dem betreffenden Einschnitt gehörige Überlappungsfeld 36 bzw. 38 vollständig an der zu verpackenden Rolle 10 anliegt, mit einer Geschwindigkeit angetrieben, die etwas größer als die Umfangsgeschwindigkeit der Rolle ist.To perform the procedure described above the device shown schematically in the drawings is suitable with a carriage 42 parallel to the two Back-up rolls 16 and 18 and thus parallel to the axis A of the roll 10 along guides 44 is controlled displaceable. The sled 42 carries a roll-off device 46 on which a packaging web roll 50 axially parallel to the roll 10 to be packed and a pair of drive rollers 52 and 54, which is the packaging web running off the packaging web roll 50 20 with precisely controllable speed in the direction on the roll 10 to be packed perpendicular to its axis A promote. The drive rollers 52 and 54 can be controlled that their peripheral speed is optionally the same size, slightly less or slightly greater than the peripheral speed of the packing roll 10 is. Accordingly, the packaging line can be 20 on the way from the drive rollers 52 and 54 and the roll 10 either tighten or relieve from train. Conveniently, will the packaging web 20 each time they is provided with an incision 32 or 34, and at least until the overlap field belonging to the relevant incision 36 or 38 completely on the roll to be packed 10 abuts, driven at a speed that is something is greater than the peripheral speed of the roll.

Ferner trägt der Schlitten 42 eine Schneidvorrichtung, die eine Messerwalze 56 und eine dazu komplementäre Gegenmesserwalze 58 aufweist. Diese beiden Walzen 56 und 58 erstrecken sich ebenfalls parallel zur Achse A der zu verpackenden Rolle 10 und sind von einem Schrittmotor miteinander synchronisiert drehantreibbar sowie zueinander hin und voneinander weg verstellbar. Die Messserwalze 56 trägt drei zu ihrer Achse parallele, um 120° gegeneinander versetzte Messer, nämlich ein über die gesamte nutzbare Länge der Messerwalze durchgehendes Trennmesser 60 sowie ein erstes Einschneidemesser 62, das zum Herstellen des ersten Einschnittes 32 vorgesehen ist und sich dementsprechend von einem ersten Ende der nutzbaren Länge der Messerwalze 56 nur bis in die Nähe von deren zweitem Ende erstreckt, und ein zweites Einschneidemesser 64, das zum Herstellen des zweiten Einschnittes 34 vorgesehen ist und sich dementsprechend vom zweiten Ende der Messerwalze 56 nur bis in die Nähe von deren erstem Ende erstreckt. Jedes der beiden Einschneidemesser 62 und 64 endet in einem Lochstempel 66 bzw. 68 zum Stanzen des Lochs 40 am Ende des ersten Einschnittes 32 bzw. des zweiten Einschnittes 34.Furthermore, the carriage 42 carries a cutting device, the one Knife roller 56 and a complementary counter-knife roller 58 having. These two rollers 56 and 58 also extend parallel to the axis A of the roll 10 to be packed and are synchronously driven by a stepper motor as well as adjustable towards and away from each other. The knife roller 56 carries three parallel to its axis, 120 ° against each other offset knife, namely a usable over the entire Length of the knife roller continuous cutting knife 60 and a first Cutting knife 62, which is used to make the first incision 32 is provided and accordingly from one first end of the usable length of the knife roller 56 only up to extends near its second end, and a second incision knife 64, which is used to make the second incision 34 is provided and accordingly from the second end of the Knife roller 56 extends only in the vicinity of its first end. Each of the two cutting knives 62 and 64 ends in a punch 66 or 68 for punching the hole 40 at the end of the first incision 32 and the second incision 34.

Ferner trägt der Schlitten 42 eine Zuführeinrichtung 70, die den Winkel bestimmt, unter dem die Verpackungsbahn 20 der Mantelfläche der Rolle 10 zugeführt wird. Die Zuführeinrichtung 70 weist eine die Verpackungsbahn 20 führende Umlenkwalze 72 auf, die frei drehbar auf einem Achskörper 74 gelagert ist, welcher seinerseits auf einem in der Ansicht gemäß Fig. 2 U-förmigen Tragbügel 76 befestigt ist. Der Tragbügel 76 ist an einem Ende, in Fig. 2 links, an einem Gestell 78 gelagert, das auf dem Schlitten 42 befestigt ist und einen den Tragbügel 76 in der Nähe von dessen gegenüberliegendem Ende stützenden pneumatischen oder hydraulischen Verstellzylinder 80 trägt.Furthermore, the carriage 42 carries a feed device 70 which the Determines the angle at which the packaging web 20 of the lateral surface the roll 10 is fed. The feed device 70 has a deflecting roller 72 leading the packaging web 20 to the is freely rotatable on an axle 74, which in turn on a U-shaped support bracket in the view according to FIG. 2 76 is attached. The bracket 76 is at one end, in Fig. 2 left, mounted on a frame 78 which is on the carriage 42 is attached and the support bracket 76 near its opposite end supporting pneumatic or hydraulic Adjustment cylinder 80 carries.

Mittels des Verstellzylinders 80 ist der Tragbügel 76, und somit die Umlenkwalze 72, aus einer waagerechten, zur Achse A der Rolle 10 parallelen Stellung, die zum Wickeln der geraden Umwicklungen 22 und 24 dient, in eine Schrägstellung schwenkbar, die in Fig. 1 und 2 als obere Stellung mit strichpunktierten Linien angedeutet ist und bewirkt, daß die über die Umlenkwalze 72 laufende Verpackungsbahn 20 die Mantelfläche der zu verpackenden Rolle 10 unter dem wählbaren spitzen Winkel α zur Achse A erreicht. Damit die dazu erforderliche Schrägstellung der Umlenkwalze 72 genau vorbestimmt und dann jeweils durch Betätigen des Verstellzylinders 80 schnell erreicht und ebenso schnell wieder verlassen werden kann, ist eine vom Verstellzylinder getrennte Steuereinrichtung vorgesehen, die einen Verstellmotor 82 und einen von diesem gesteuerten Anschlag 84 für den Tragbügel 76 aufweist.By means of the adjusting cylinder 80, the support bracket 76, and thus the deflection roller 72, from a horizontal to the axis A of the roller 10 parallel position, used for winding the straight wraps 22 and 24 serves, in an inclined position, the 1 and 2 as the upper position with dash-dotted lines is indicated and causes that running over the deflection roller 72 Packaging web 20, the outer surface of the to be packaged Roll 10 reached at the selectable acute angle α to the axis A. So that the required tilting of the deflection roller 72 exactly predetermined and then in each case by pressing the Adjusting cylinder 80 reached quickly and just as quickly again can be left is a separate one from the adjustment cylinder Control device is provided, the one adjusting motor 82 and one of this controlled stop 84 for the bracket 76.

Schließlich kann an dem Schlitten 42 eine in Fig. 1 angedeutete Klebevermittlungseinrichtung 86 angeordnet sein, beispielsweise eine Klebstoffsprüheinrichtung, die vor und/oder hinter jedem der Einschnitte 32 und 34 Klebstoff aufträgt, damit die je ein Überlappungsfeld 36 bzw. 38 bildenden Flächen der Verpackungsbahn 20 miteinander verklebt werden.Finally, one can be indicated on the carriage 42 in FIG Adhesion mediation device 86 may be arranged, for example an adhesive sprayer that is in front of and / or behind each the incisions 32 and 34 apply adhesive so that each one Overlap field 36 or 38 forming surfaces of the packaging web 20 are glued together.

Claims (10)

  1. A method of packaging a roll (10), especially of printing paper, wherein
    an elongate packaging sheet (20) having a width (B) less than the length (L) of the roll is wrapped around the roll (10), in which
    the elongate packaging sheet (20) is at first fed in the area of a first end (12) of the roll (10) at right angles to its axis (A) until a first straight wrapping (22) is provided;
    the elongate packaging sheet (20) is then fed at an acute angle and an axial relative movement between the elongate packaging sheet (20) and the roll (10) is generated simultaneously, so that the latter receives a helical winding (30) in an area between its two ends (12, 14), and
    finally, the elongate packaging sheet (20) is again fed at right angles in the area of the second end (14) of the roll (10) until a second straight wrapping (24) is obtained,
    characterised in that
    the elongate packaging sheet (20) is provided at a point forming the end of the first straight wrapping (22) with a first transversely extending incision (32) which starts out from the lateral margin of the elongate packaging sheet (20) that faces the second end (12) of the roll (10) and extends up to the proximity of its opposite margin;
    areas of the elongate packaging sheet (20) defined by said first incision (32) are placed one above the other thus forming an essentially triangular first overlapping portion (36) while the elongate packaging sheet is adjusted at an acute angle;
    the elongate packaging sheet (20) is provided at a point forming the end of the helical wrapping (30) with a second transversely extending incision (34) which starts out from the lateral margin of the elongate packaging sheet facing the first end (14) of the roll (10) and extends up to the proximity of its opposite margin, and
    areas of the elongate packaging sheet (20) defined by said second incision (34) are placed one above the other thus forming an essentially triangular second overlapping portion (36) while the elongate packaging sheet is again adjusted at right angles relative to the roll.
  2. The method according to claim 1, characterised in that
    the elongate packaging sheet (20) includes projecting lengths (26, 28) extending beyond an end (12, 14) each of the roll (10) to be packaged, and
    the incisions (32, 34) terminate in one of said projecting lengths (26, 28) each.
  3. The method according to claim 1 or 2,
    characterised in that the areas of the elongate packaging sheet (20) that are defined by a common incision (32, 34) and form a common overlapping portion (36, 38) are glued together.
  4. The method according to one of claims 1 to 3, characterised in that the roll (10) to be packaged and the elongate packaging sheet (20) are driven separately, with the elongate packaging sheet (20), when it is provided with an incision (32, 34) and at least until the overlapping portion (36, 38) associated with this incision is in complete contact with the roll, being in each case driven at a speed that is somewhat higher than the circumferential speed of the roll.
  5. The method according to one of claims 1 to 4,
    characterised in that an elongate packaging sheet (20) of wrapping paper is used.
  6. An apparatus for packaging a roll (10), especially of printing paper, said apparatus comprising
    two parallel support rollers (16, 18), of which at least one is adapted to be driven, as a rest for the roll (10) to be packaged;
    a carriage (42) which is adapted to be moved in controlled manner parallel to the axis (A) of the roll (10) resting on the support rollers (16, 18);
    a feeding device (70) that is carried by the carriage (42) and feeds an elongate packaging sheet (20) optionally at right angles or at an acute angle relative to the axis (A) of the roll (10) in order to provide a wrapping (30) progressing helically from a first end (12) of the roll (10) to its second end (14), and
    a cutting device (56, 58) also carried by the carriage (42) for severing the elongate packaging sheet (20),
    characterised in that
    the cutting device (56, 58) is adapted optionally to sever the elongate packaging sheet (20) completely or to provide it with a first incision (32) starting out from a lateral margin of the elongate packaging sheet (20) facing the second end (12) of the roll (10) and with a second incision (34) starting out from the opposite margin of the elongate packaging sheet
  7. The apparatus according to claim 6,
    characterised in that the cutting device (56, 58) comprises a cutter block (56) having
    an uninterrupted severing knife (60) extending over a usable total length of the cutter block (56) for severing the elongate packaging sheet (20);
    a first incision knife (62), that extends from a first end only up to the proximity of the second end of the usable total length of the cutter block (56), for incising the elongate packaging sheet (20), and
    a second incision knife (64), that extends from the second end only up to the proximity of the first end of the usable total length of the cutter block (56), for incising the elongate packaging sheet (20).
  8. The apparatus according to claim 6 or 7,
    characterised in that the feeding device (70) comprises a deflection roller (72) that is adjustable from a position parallel to the supporting rollers (16, 18) for feeding the elongate packaging sheet (20) at right angles into an inclined position for feeding the elongate packaging sheet at an acute angle.
  9. The apparatus according to claim 8,
    characterised in that the feeding device (70) is arranged between the roll (10) to be packaged and the cutting device (56, 58).
  10. The apparatus according to one of claims 6 to 9,
    characterised in that the cutting device (56, 58) is arranged between the feeding device (70) and a pair of drive rollers (52, 54) for driving the elongate packaging sheet (20).
EP00105957A 1999-06-25 2000-03-23 Method and apparatus for packaging rolls, in particular of printing paper Expired - Lifetime EP1063171B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19929309A DE19929309C1 (en) 1999-06-25 1999-06-25 Packaging wound rolls of newsprint paper uses a narrower wrapping web starting with a straight wound coil at one end and spiral coils to the other end with a final straight coil for a clean wrapping without creases
DE19929309 1999-06-25

Publications (2)

Publication Number Publication Date
EP1063171A1 EP1063171A1 (en) 2000-12-27
EP1063171B1 true EP1063171B1 (en) 2004-05-26

Family

ID=7912636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00105957A Expired - Lifetime EP1063171B1 (en) 1999-06-25 2000-03-23 Method and apparatus for packaging rolls, in particular of printing paper

Country Status (2)

Country Link
EP (1) EP1063171B1 (en)
DE (2) DE19929309C1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872767A (en) * 1954-12-01 1959-02-10 Rice Barton Corp Spiral wrapping machine
US3863425A (en) * 1973-05-14 1975-02-04 John Edwards And Associates In Apparatus for wrapping elongate cylindrical objects
US4173108A (en) * 1978-03-27 1979-11-06 Chromalloy American Corporation Spiral wrapping apparatus
DE19549664C2 (en) * 1995-09-26 2003-06-26 Voith Paper Patent Gmbh Device for packaging a roll of material web
DE19652450C2 (en) * 1996-12-17 2000-04-13 Voith Sulzer Finishing Gmbh Device for packaging a roll of material web

Also Published As

Publication number Publication date
DE50006559D1 (en) 2004-07-01
EP1063171A1 (en) 2000-12-27
DE19929309C1 (en) 2000-08-17

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