EP0056237B1 - Device for packing rolls - Google Patents

Device for packing rolls Download PDF

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Publication number
EP0056237B1
EP0056237B1 EP82100025A EP82100025A EP0056237B1 EP 0056237 B1 EP0056237 B1 EP 0056237B1 EP 82100025 A EP82100025 A EP 82100025A EP 82100025 A EP82100025 A EP 82100025A EP 0056237 B1 EP0056237 B1 EP 0056237B1
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EP
European Patent Office
Prior art keywords
drawer
end cover
shelf
holder
roll
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
Application number
EP82100025A
Other languages
German (de)
French (fr)
Other versions
EP0056237A1 (en
Inventor
Stephan Piesen
Jacob Hannen
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.)
Kleinewefers GmbH
Original Assignee
Kleinewefers GmbH
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Filing date
Publication date
Application filed by Kleinewefers GmbH filed Critical Kleinewefers GmbH
Publication of EP0056237A1 publication Critical patent/EP0056237A1/en
Application granted granted Critical
Publication of EP0056237B1 publication Critical patent/EP0056237B1/en
Expired 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1744—Means bringing discrete articles into assembled relationship
    • Y10T156/1776—Means separating articles from bulk source
    • Y10T156/1778—Stacked sheet source

Definitions

  • the invention relates to a device for packaging rolls with automatic feeding of end covers to be placed on the end faces of the rolls, in which a front cover magazine has several storage spaces for receiving end covers of different sizes, optionally one of the storage spaces can be brought into a working position in which a Front cover is removed by suction, and the front cover is then transferred to the holding head of a device for attaching a front cover to the roller.
  • the storage locations consist of plates arranged one above the other, which can be pivoted about a common vertical axis lying outside the plates.
  • a transmission device with a horizontally running holding element working by means of suction grips the top end cover of a stack located on a swung-out plate, transports this end cover up to almost over the press plate serving as a holding head of a press station, swivels the end cover into a vertical position, lowers it and transfers it him to the press plate.
  • the suction pressure must be distributed as evenly as possible over the surface of the end cover and be relatively large. Conversely, this has the consequence that with small end covers numerous suction openings are not covered and result in a shunt which causes losses and impairs the effective suction pressure. In addition, a considerable space is required in the direction of the roll pass, which corresponds approximately to twice the diameter of the largest end cover.
  • the invention has for its object to provide a device of the type described above, in which it is possible to remove a front cover from its storage location with considerably less force.
  • the storage spaces are formed by drawers, which are arranged one above the other in compartments of a shelf, and that a drawer transport device is provided, each of which removes a drawer from its compartment, tilts into the at least approximately vertically arranged working position and returns to the compartment after removing a front cover.
  • two shelves can be arranged on both sides of the roller conveyor path with compartments facing each other and the drawers can be tilted into the vertical working position located between the associated shelf and the roller conveyor path.
  • the space requirement in the direction of passage only needs to be somewhat larger than the diameter of the largest end cover. If space is required for tipping, the space between the shelf and the roller conveyor or even the space of the roller conveyor itself can be used. In any case, the tilted drawers are outside the continuous rollers.
  • the drawer transport device has horizontally fixed, horizontal transverse guides and the shelf is adjustable in height such that there is a compartment in each case in the extension of the transverse guides.
  • the transverse guides can therefore be attached to the frame of the overall device.
  • the lifting drive for the shelf is easy to implement.
  • the shelf is arranged offset in the direction of the roll pass relative to the holding head and if a longitudinal conveyor transports the end covers in a vertical position from the shelf to the holding head.
  • the fastening device having the holding head can therefore be arranged in a stationary manner. Due to the longitudinal transport of the front cover, no additional floor space is required.
  • the longitudinal conveyor is formed by a transmission device with a vertically standing holding element, which in each case transports an end cover.
  • the holding element can be held on an arm pivotable about a horizontal axis. All movements take place in a vertical plane.
  • the longitudinal conveyor is part of the drawer transport device and has longitudinal guides with the aid of which a drawer can be transported in a vertical position.
  • This enables that the holding head of the fastening device removes the front cover directly from the drawer.
  • this is also possible with relatively small holding heads.
  • the holding head can be adjustable in height in order to bring about an adaptation to different roll diameters.
  • the holding element of the longitudinal conveyor can also be adjustable in height.
  • the drawer transport device tilts the drawer down about an axis on the side facing away from the shelf and the holding head removes the end cover of the drawer. In this way, the upper side of the drawer faces the holding head of the fastening device.
  • the procedure is such that the drawer transport device tilts the drawer downward about an axis on the side facing the shelf and a transfer device removes the front cover of the drawer and transfers it to the packing press plate acting as a holding head.
  • the transfer device removes an end cover from the open side of the drawer and then offers the opposite surface of the end cover to the holding head of the fastening device.
  • the device is not only suitable for attaching outer end caps, which are glued on with the help of the packing press, but also for attaching inner end caps before wrapping the roll with wrapping paper.
  • a device for attaching inner end caps with a central hole to a roller provided with a sleeve can have a holding head which has a channel connected to a plug magazine, through which holding plugs can be inserted into the hole and the sleeve by means of a sliding device.
  • the inner end caps can therefore be attached to the end faces of the roll by means of automatic stopper feeding.
  • the holding heads can be formed by the pressure surfaces of a roller centering station. No additional station is therefore required for the automatic fastening of the inner end covers.
  • a paper roll 1 to be packed is transported in the direction of arrow 2.
  • Inner end covers are removed from end cover magazines 3 and attached to the end faces of the roll 1 with the aid of a fastening device 4.
  • This fastening device 4 also serves as a centering station in order to align the roll with respect to a subsequent winding station 5.
  • the roll 1 is rotated with the aid of rollers 6 in the direction of the arrow 1 a and wrapped with the section of a wrapping paper web 7 which has been drawn off from one of several wrapping paper rolls 8 of different widths by means of feed rollers 9.
  • the protruding edges of the wrapping paper are folded over to the outside of the inner end cover with the aid of a folding wheel 11.
  • Outer end covers are removed from further end cover magazines 12 and glued to the outside of the paper roll end faces in a packing press 13.
  • the packaged roll 1 is then removed in the direction of arrow 14.
  • the device has a frame 15, on which some of the units described are fully or partially attached.
  • two end cover magazines 3 are provided, which have a plurality of compartments 17 one above the other, which are open towards the central plane 18.
  • the shelf 16 can be gradually adjusted up to the dashed height by means of a lifting device indicated by an arrow 19.
  • a drawer 20 which contains a stack 21 of inner end covers 22. The diameter of these end covers increases from top to bottom.
  • a drawer transport device 23 has a frame which consists of transverse guides 24 and longitudinal webs 25 connecting them.
  • the frame also forms a longitudinal conveyor 23a and carries rollers 26 on its upper side which run in a longitudinal guide 27.
  • This longitudinal guide extends to the centering station 4.
  • the drawer transport device has a transverse drive, which is only indicated by the arrow 28, with the aid of which the drawer 20 can be transferred into the transverse guide, the compartment 17 of which had been adjusted to the height of this transverse guide.
  • the drawer then occupies position 20a. It can be tilted about a tilt axis 29 with the aid of a tilt drive 30 in the direction of arrow 31. It then assumes the position 20b in which the open side of the central plane 18 faces away. In this position, the drawer is opened with the help of a Arrow 31 indicated longitudinal drive moved into the centering station 4, where the drawer has the position 20c.
  • the centering station has two centering blocks 32, which can be moved symmetrically to the central plane 18 in the direction of the arrows 34 by means of a chain drive 33.
  • a holding head 36 in the centering block 32 can be adjusted in height by means of a lifting device indicated by an arrow 35.
  • 5 is provided with a plurality of suction openings 37, by means of which a front cover 22 can be removed from the drawer in position 20c, as indicated by arrows 38 in FIG. 4.
  • the drawer is then transported back into the drawer 17 in the same way.
  • a plurality of plugs 39 are arranged in a plug magazine 40, with which plugs can be fed in the direction of arrow 41.
  • the plugs can be pushed in the direction of arrow 43 through a hole 44 in the holding head 36 in the direction of the central plane 18 with the aid of a plug insertion device 42.
  • the insertion device 42 is actuated.
  • two plugs 39 are pushed from opposite sides through the end caps 22 into the sleeve 45 of the roller 1, whereby the end caps are attached to the roller 1.
  • the two end cover magazines 12 in turn have a shelf 46 with individual compartments 47.
  • a lifting device indicated by an arrow 49 is able to raise the shelf up to the dashed height.
  • Each drawer contains a stack 51 with outer end covers 52.
  • a drawer transport device 53 has transverse guides 54.
  • there are cross conveyors indicated by an arrow 55 which are able to move a drawer from the compartment 47, which lies opposite the transverse guides, into position 50a.
  • a tilt drive 56 pivots the drawer about a tilt axis 57 in the direction of arrow 58 into position 50b, this time the open side of the drawer facing the central plane 18.
  • a transmission device forms a longitudinal conveyor 59. It has a holding element 60 which is provided with suction openings in a similar manner to the holding head 36.
  • the holding element is seated on a pivot arm 61 which is pivotable about a horizontal axis 62.
  • the axis is held in a block 63 which can be moved up and down on rods 64 in the direction of arrow 73.
  • the holding element takes an end cover out of the drawer held in position 50b by suction and transports it in the direction of arrow 65 in front of the press plate 66 of the packing press 13.
  • the suction force of the holding element 60 is indicated by arrows 67.
  • the holding element 60 can also be moved in the direction of the arrow 68 with the aid of a drive.
  • the press plate 66 is provided with a plurality of suction openings 69 so that this press plate can serve as a holding head for the outer end cover.
  • the press plate is seated on a block 70 which can be moved along the path 72 by means of a drive 71. In this way, the end cover held by the press plate 66 can be glued to the end face of the packaged roll 1.
  • the front cover magazines 12 are relatively close to the roller path. Nevertheless, the tilting movement according to arrow 58 is possible because times can be used in which there is no roll between the magazines 12. Both in position 50a and in position 50b, the roll run is not hindered.
  • the various drives can be designed hydraulically, pneumatically, electrically or in any other known manner.
  • the stroke control of magazines 3 and 12 takes place depending on a previous measurement of the roll diameter. This also applies to the control of the lifting movement of the holding head 36 or the holding element 60.
  • the drawers can be slightly inclined to the vertical. It is also possible to provide holders in the drawers which overlap the edge of the foremost front cover so slightly that the front cover can be pulled out of the holders with the existing separating forces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Packaging Of Special Articles (AREA)
  • Package Closures (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Replacement Of Web Rolls (AREA)
  • Basic Packing Technique (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Description

Die Erfindung bezieht sich auf eine Einrichtung zum Verpacken von Rollen mit automatischer Zufuhr von an die Stirnseiten der Rollen anzulegenden Stirndeckeln, bei der ein Stirndeckelmagazin mehrere Speicherplätze zur Aufnahme von Stirndeckeln unterschiedlicher Größe besitzt, wahlweise einer der Speicherplätze in eine Arbeitsstellung bringbar ist, in der ein Stirndeckel mittels Saugkraft abgenommen wird, und der Stirndeckel danach auf den Haltekopf einer Vorrichtung zum Befestigen eines Stirndeckels an der Rolle übertragen wird.The invention relates to a device for packaging rolls with automatic feeding of end covers to be placed on the end faces of the rolls, in which a front cover magazine has several storage spaces for receiving end covers of different sizes, optionally one of the storage spaces can be brought into a working position in which a Front cover is removed by suction, and the front cover is then transferred to the holding head of a device for attaching a front cover to the roller.

Bei einer bekannten Verpackungseinrichtung dieser Art (DE-A 2 944 331) bestehen die Speicherplätze aus übereinander angeordneten Platten, welche um eine gemeinsame, außerhalb der Platten liegende Vertikalachse schwenkbar sind. Eine Übertragungsvorrichtung mit einem horizontal verlaufenden, mittels Saugkraft arbeitenden Halteelement ergreift den obersten Stirndeckel eines auf einer herausgeschwenkten Platte befindlichen Stapels, transportiert diesen Stirndeckel bis annähernd über die als Haltekopf dienende Preßplatte einer Preßstation, schwenkt dort den Stirndeckel in eine Vertikallage, senkt ihn ab und übergibt ihn an die Preßplatte. Bei dieser Konstruktion treten Schwierigkeiten beim Abheben des obersten Stirndeckels eines Stapels und beim Transport des horizontalen Stirndeckels vom Stapel zur Packpresse auf. Insbesondere muß der Saugdruck möglichst gleichmäßig über die Fläche des Stirndeckels verteilt und verhältnismäßig groß sein. Dies hat umgekehrt zur Folge, daß bei kleinen Stirndeckeln zahlreiche Saugöffnungen nicht abgedeckt sind und einen Nebenschluß ergeben, der Verluste hervorruft und den wirksamen Saugdruck beeinträchtigt. Außerdem wird in Richtung des Rollendurchlaufs ein erheblicher Platz benötigt, der etwa zweimal dem Durchmesser des größten Stirndeckels entspricht.In a known packaging device of this type (DE-A 2 944 331), the storage locations consist of plates arranged one above the other, which can be pivoted about a common vertical axis lying outside the plates. A transmission device with a horizontally running holding element working by means of suction grips the top end cover of a stack located on a swung-out plate, transports this end cover up to almost over the press plate serving as a holding head of a press station, swivels the end cover into a vertical position, lowers it and transfers it him to the press plate. With this construction, difficulties arise when lifting the top end cover of a stack and when transporting the horizontal end cover from the stack to the packaging press. In particular, the suction pressure must be distributed as evenly as possible over the surface of the end cover and be relatively large. Conversely, this has the consequence that with small end covers numerous suction openings are not covered and result in a shunt which causes losses and impairs the effective suction pressure. In addition, a considerable space is required in the direction of the roll pass, which corresponds approximately to twice the diameter of the largest end cover.

Der Erfindung liegt die Aufgabe zugrunde, eine Einrichtung der eingangs beschriebenen Art anzugeben, bei der ein einwandfreies Abnehmen eines Stirndeckels von seinem Speicherplatz mit erheblich geringeren Kräften möglich ist.The invention has for its object to provide a device of the type described above, in which it is possible to remove a front cover from its storage location with considerably less force.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Speicherplätze durch Schubladen gebildet sind, die übereinander in Fächern eines Regals angeordnet sind, und daß eine Schubladen-Transportvorrichtung vorgesehen ist, die jeweils eine Schublade aus ihrem Fach entnimmt, in die wenigstens angenähert vertikal angeordnete Arbeitsstellung kippt und nach Abnahme eines Stirndeckels wieder in das Fach zurückführt.This object is achieved in that the storage spaces are formed by drawers, which are arranged one above the other in compartments of a shelf, and that a drawer transport device is provided, each of which removes a drawer from its compartment, tilts into the at least approximately vertically arranged working position and returns to the compartment after removing a front cover.

Bei dieser Konstruktion brauchen lediglich annähernd vertikal stehende Stirndeckel vom Stapel abgetrennt und transportiert zu werden. Hierfür sind verhältnismäßig kleine Saugkräfte ausreichend. Denn die Saugkraft braucht nicht einer Überlagerung von Trennkraft und Gewichtskraft entgegenzuwirken. Vielmehr ist beim Trennen lediglich die in Richtung der Saugöffnungen wirkende Trennkraft und beim Transport lediglich die senkrecht hierzu wirkende Gewichtskraft, die durch Reibung aufgenommen wird, zu berücksichtigen. Dies hat zur Folge, daß verhältnismäßig kleine Saugköpfe verwendet werden können, deren Durchmesser geringer ist als derjenige des kleinsten Stirndeckels. Entsprechend gering sind die Verluste. Der Transport der Stirndeckel-Stapel in die vertikale Arbeitsstellung bereitet keine Schwierigkeiten, da die Stapel in ihrer Schublade transportiert und gekippt werden. Da die Schublade in ihrer vertikalen Stellung vergleichsweise wenig Grundfläche einnimmt, lassen sich mit Hilfe dieser Konstruktion auch raumsparende Anordnungen angeben.With this construction, only approximately vertically standing end covers need to be separated from the stack and transported. Relatively small suction forces are sufficient for this. Because the suction power does not need to counteract a superimposition of separation force and weight. Rather, only the separating force acting in the direction of the suction openings and during transport only the weight force acting perpendicularly thereto, which is absorbed by friction, is to be taken into account. As a result, relatively small suction heads can be used, the diameter of which is smaller than that of the smallest end cover. The losses are correspondingly low. Transporting the stack of end covers into the vertical working position is no problem, since the stack is transported and tilted in its drawer. Since the drawer takes up comparatively little floor space in its vertical position, space-saving arrangements can also be specified with the aid of this construction.

Insbesondere können zwei Regale zu beiden Seiten der Rollendurchlaufbahn mit einander zugewandten Fächern angeordnet sein und die Schubladen sind in die zwischen dem zugehörigen Regal und der Rollendurchlaufbahn befindliche vertikale Arbeitsstellung kippbar. Bei dieser Anordnung braucht der Platzbedarf in Durchlaufrichtung nur etwas größer zu sein als der Durchmesser des größten Stirndeckels. Soweit Platz zum Kippen benötigt wird, kann der Raum zwischen Regal und Rollendurchlaufbahn oder sogar der Raum der Rollendurchlaufbahn selbst benutzt werden. Auf jeden Fall befinden sich die gekippten Schubladen außerhalb der durchlaufenden Rollen.In particular, two shelves can be arranged on both sides of the roller conveyor path with compartments facing each other and the drawers can be tilted into the vertical working position located between the associated shelf and the roller conveyor path. With this arrangement, the space requirement in the direction of passage only needs to be somewhat larger than the diameter of the largest end cover. If space is required for tipping, the space between the shelf and the roller conveyor or even the space of the roller conveyor itself can be used. In any case, the tilted drawers are outside the continuous rollers.

Bei einer bevorzugten Lösung weist die Schubladen-Transportvorrichtung höhenfest angeordnete, horizontale Querführungen auf und das Regal ist derart höhenverstellbar, daß sich jeweils ein Fach in Verlängerung der Querführungen befindet. Die Querführungen können daher am Rahmen der Gesamteinrichtung befestigt sein. Der Hubantrieb für das Regal ist einfach zu verwirklichen.In a preferred solution, the drawer transport device has horizontally fixed, horizontal transverse guides and the shelf is adjustable in height such that there is a compartment in each case in the extension of the transverse guides. The transverse guides can therefore be attached to the frame of the overall device. The lifting drive for the shelf is easy to implement.

Günstig ist es ferner, wenn das Regal in Richtung des Rollendurchlaufs gegenüber dem Haltekopf versetzt angeordnet ist und wenn ein Längsförderer die Stirndeckel in Vertikallage vom Regal zum Haltekopf transportiert. Die den Haltekopf aufweisende Befestigungsvorrichtung kann daher ortsfest angeordnet sein. Durch den Längstransport des Stirndeckels wird keine zusätzliche Grundfläche benötigt.It is also expedient if the shelf is arranged offset in the direction of the roll pass relative to the holding head and if a longitudinal conveyor transports the end covers in a vertical position from the shelf to the holding head. The fastening device having the holding head can therefore be arranged in a stationary manner. Due to the longitudinal transport of the front cover, no additional floor space is required.

Bei einer Ausführungsform ist der Längsförderer durch eine Übertragungsvorrichtung mit einem vertikal stehenden Halteelement gebildet, das jeweils einen Stirndeckel transportiert. Insbesondere kann das Halteelement an einem um eine horizontale Achse schwenkbaren Arm gehalten sein. Alle Bewegungen erfolgen in einer vertikalen Ebene.In one embodiment, the longitudinal conveyor is formed by a transmission device with a vertically standing holding element, which in each case transports an end cover. In particular, the holding element can be held on an arm pivotable about a horizontal axis. All movements take place in a vertical plane.

Bei einer anderen Ausführungsform ist der Längsförderer Teil der Schubladen-Transportvorrichtung und weist Längsführungen auf, mit deren Hilfe jeweils eine Schublade in Vertikallage transportierbar ist. Dies ermöglicht es, daß der Haltekopf der Befestigungsvorrichtung den Stirn deckel unmittelbar der Schublade entnimmt. Dies ist gemäß der Erfindung auch mit verhältnismäßig kleinen Halteköpfen möglich. Hierbei kann der Haltekopf höhenverstellbar sein, um eine Anpassung an verschiedene Rollendurchmesser herbeizuführen. Es kann aber auch das Halteelement des Längsförderers höhenverstellbar sein.In another embodiment, the longitudinal conveyor is part of the drawer transport device and has longitudinal guides with the aid of which a drawer can be transported in a vertical position. This enables that the holding head of the fastening device removes the front cover directly from the drawer. According to the invention, this is also possible with relatively small holding heads. Here, the holding head can be adjustable in height in order to bring about an adaptation to different roll diameters. However, the holding element of the longitudinal conveyor can also be adjustable in height.

Bei einer bevorzugten Ausführungsform ist dafür gesorgt, daß die Schubladen-Transportvorrichtung die Schublade um eine Achse auf der dem Regal abgewandten Seite nach unten kippt und der Haltekopf den Stirndeckel der Schublade entnimmt. Auf diese Weise ist die obere Seite des Schubladens dem Haltekopf der Befestigungsvorrichtung zugewandt.In a preferred embodiment it is ensured that the drawer transport device tilts the drawer down about an axis on the side facing away from the shelf and the holding head removes the end cover of the drawer. In this way, the upper side of the drawer faces the holding head of the fastening device.

Gemäß einer anderen Alternative wird so vorgegangen, daß die Schubladen-Transportvorrichtung die Schublade um eine Achse auf der dem Regal zugewandten Seite nach unten kippt und eine Übertragungsvorrichtung den Stirndekkel der Schublade entnimmt sowie zu der als Haltekopf wirkenden Packpressenplatte überträgt. Die Übertragungsvorrichtung entnimmt einen Stirndeckel aus der offenen Seite der Schublade und bietet dann die gegenüberliegende Oberfläche des Stirndeckels dem Haltekopf der Befestigungsvorrichtung an.According to another alternative, the procedure is such that the drawer transport device tilts the drawer downward about an axis on the side facing the shelf and a transfer device removes the front cover of the drawer and transfers it to the packing press plate acting as a holding head. The transfer device removes an end cover from the open side of the drawer and then offers the opposite surface of the end cover to the holding head of the fastening device.

Die Einrichtung eignet sich nicht nur für das Anbringen von äußeren Stirndeckeln, die mit Hilfe der Packpresse aufgeklebt werden, sondern auch für das Anbringen von inneren Stirndeckeln vor dem Umwickeln der Rolle mit Packpapier. Zu diesem Zweck kann eine Vorrichtung zum Befestigen von inneren Stirndeckeln mit zentrischem Loch an einer mit Hülse versehenen Rolle einen Haltekopf aufweisen, der einen mit einem Stopfenmagazin verbundenen Kanal besitzt, durch den Haltestopfen mittels einer Schiebevorrichtung in Loch und Hülse einschiebbar sind. Durch automatische Stopfenzufuhr können demnach die inneren Stirndeckel an den Stirnseiten der Rolle befestigt werden.The device is not only suitable for attaching outer end caps, which are glued on with the help of the packing press, but also for attaching inner end caps before wrapping the roll with wrapping paper. For this purpose, a device for attaching inner end caps with a central hole to a roller provided with a sleeve can have a holding head which has a channel connected to a plug magazine, through which holding plugs can be inserted into the hole and the sleeve by means of a sliding device. The inner end caps can therefore be attached to the end faces of the roll by means of automatic stopper feeding.

Hierbei können die Halteköpfe durch die Druckflächen einer Rollenzentrierstation gebildet sein. Für die automatische Befestigung der inneren Stirndeckel ist daher keine zusätzliche Station erforderlich.The holding heads can be formed by the pressure surfaces of a roller centering station. No additional station is therefore required for the automatic fastening of the inner end covers.

Die Erfindung wird nachstehend anhand in der Zeichnung dargestellter, bevorzugter Ausführungsbeispiele näher erläutert. Es zeigt

  • Fig. 1 eine Seitenansicht einer erfindungsgemäßen Verpackungseinrichtung,
  • Fig. 2 eine Stirnansicht der Magazine für die inneren Stirndeckel gemäß der Linie A-A in Fig.1,
  • Fig. 3 eine Draufsicht auf die genannten Magazine und die Zentrierstation gemäß der Linie B-B in Fig. 1,
  • Fig. 4 eine Stirnansicht der Zentrierstation gemäß der Linie C-C in Fig. 1,
  • Fig. 5 eine Seitenansicht des in der Zentrierstation verwendeten Haltekopfes,
  • Fig. 6 eine Stirnansicht der Magazine für die äußeren Stirndeckel gemäß der Linie D-D in Fig. 1,
  • Fig. 7 eine Draufsicht auf die genannten Magazine und die Packpresse gemäß der Linie E-E in Fig. 1,
  • Fig. 8 eine Seitenansicht gemäß der Linie F-F in Fig. 6 und
  • Fig. eine Teildraufsicht auf die Anordnung nach Fig. 8.
The invention is explained in more detail below with reference to preferred exemplary embodiments illustrated in the drawing. It shows
  • 1 is a side view of a packaging device according to the invention,
  • 2 shows an end view of the magazines for the inner end covers according to the line AA in FIG. 1,
  • 3 shows a top view of the magazines mentioned and the centering station along the line BB in FIG. 1,
  • 4 shows an end view of the centering station along the line CC in FIG. 1,
  • 5 is a side view of the holding head used in the centering station,
  • 6 shows an end view of the magazines for the outer end covers according to line DD in FIG. 1,
  • 7 is a plan view of the magazines mentioned and the packing press along the line EE in Fig. 1,
  • Fig. 8 is a side view along the line FF in Fig. 6 and
  • 8 is a partial top view of the arrangement according to FIG. 8.

Bei der Verpackungseinrichtung nach Fig. 1 wird eine zu verpackende Papierrolle 1 in Richtung des Pfeiles 2 antransportiert. Aus Stirndekkelmagazinen 3 werden innere Stirndeckel entnommen und mit Hilfe einer Befestigungsvorrichtung'4 an den Stirnseiten der Rolle 1 angebracht. Diese Befestigungsvorrichtung 4 dient gleichzeitig als Zentrierstation, um die Rolle mit Bezug auf eine nachfolgende Wickelstation 5 auszurichten. Auf der Wickelstation wird die Rolle 1 mit Hilfe von Walzen 6 in Richtung des Pfeiles 1 a in Drehung versetzt und mit dem Abschnitt einer Packpapierbahn 7 umwickelt, die von einer von mehreren Packpapierrollen 8 unterschiedlicher Breite mit Hilfe von Vorzugswalzen 9 abgezogen worden ist. In einer anschließenden Faltstation 10 werden die überstehenden Ränder des Packpapiers mit Hilfe eines Faltrades 11 zur Außenseite des inneren Stirndeckels hin umgefaltet. Aus weiteren Stirndeckelmagazinen 12 werden äußere Stirndeckel entnommen und in einer Packpresse 13 außen auf die Papierrollen-Stirnflächen aufgeklebt. Alsdann wird die fertig verpackte Rolle 1 in Richtung des Pfeiles 14 abtransportiert. Die Einrichtung besitzt ein Gestell 15, an dem einige der beschriebenen Aggregate ganz oder teilweise befestigt sind.In the packaging device according to FIG. 1, a paper roll 1 to be packed is transported in the direction of arrow 2. Inner end covers are removed from end cover magazines 3 and attached to the end faces of the roll 1 with the aid of a fastening device 4. This fastening device 4 also serves as a centering station in order to align the roll with respect to a subsequent winding station 5. On the winding station, the roll 1 is rotated with the aid of rollers 6 in the direction of the arrow 1 a and wrapped with the section of a wrapping paper web 7 which has been drawn off from one of several wrapping paper rolls 8 of different widths by means of feed rollers 9. In a subsequent folding station 10, the protruding edges of the wrapping paper are folded over to the outside of the inner end cover with the aid of a folding wheel 11. Outer end covers are removed from further end cover magazines 12 and glued to the outside of the paper roll end faces in a packing press 13. The packaged roll 1 is then removed in the direction of arrow 14. The device has a frame 15, on which some of the units described are fully or partially attached.

Gemäß den Fig. 2 bis 5 sind zwei Stirndeckelmagazine 3 vorgesehen, die übereinander mehrere Fächer 17 aufweisen, die zur Mittelebene 18 hin offen sind. Das Regal 16 ist mittels einer durch einen Pfeil 19 angedeuteten Hubvorrichtung stufenweise bis in die gestrichelte Höhe verstellbar. In jedem Fach befindet sich eine Schublade 20, die einen Stapel 21 von inneren Stirndeckeln 22 enthält. Der Durchmesser dieser Stirndeckel nimmt von oben nach unten zu.According to FIGS. 2 to 5, two end cover magazines 3 are provided, which have a plurality of compartments 17 one above the other, which are open towards the central plane 18. The shelf 16 can be gradually adjusted up to the dashed height by means of a lifting device indicated by an arrow 19. In each compartment there is a drawer 20 which contains a stack 21 of inner end covers 22. The diameter of these end covers increases from top to bottom.

Eine Schubladen-Transportvorrichtung 23 weist einen Rahmen auf, der aus Querführungen 24 und diese verbindenden Längsstege 25 besteht. Der Rahmen bildet auch einen Längsförderer 23a und trägt an seiner Oberseite Rollen 26, die in einer Längsführung 27 laufen. Diese Längsführung erstreckt sich bis zur Zentrierstation 4. Die Schubladen-Transportvorrichtung weist einen lediglich durch den Pfeil 28 angedeuteten Querantrieb auf, mit dessen Hilfe diejenige Schublade 20 in die Querführung überführt werden kann, deren Fach 17 in die Höhe dieser Querführung eingestellt worden war. Die Schublade nimmt dann die Stellung 20a ein. Sie ist um eine Kippachse 29 mit Hilfe eines Kippantriebs 30 in Richtung des Pfeiles 31 kippbar. Sie nimmt dann die Stellung 20b ein, in der die offene Seite der Mittelebene 18 abgewandt ist. In dieser Lage wird die Schublade mit Hilfe eines durch den Pfeil 31 angedeuteten Längsantriebs bis in die Zentrierstation 4 gefahren, wo die Schublade die Stellung 20c hat.A drawer transport device 23 has a frame which consists of transverse guides 24 and longitudinal webs 25 connecting them. The frame also forms a longitudinal conveyor 23a and carries rollers 26 on its upper side which run in a longitudinal guide 27. This longitudinal guide extends to the centering station 4. The drawer transport device has a transverse drive, which is only indicated by the arrow 28, with the aid of which the drawer 20 can be transferred into the transverse guide, the compartment 17 of which had been adjusted to the height of this transverse guide. The drawer then occupies position 20a. It can be tilted about a tilt axis 29 with the aid of a tilt drive 30 in the direction of arrow 31. It then assumes the position 20b in which the open side of the central plane 18 faces away. In this position, the drawer is opened with the help of a Arrow 31 indicated longitudinal drive moved into the centering station 4, where the drawer has the position 20c.

Die Zentrierstation weist zwei Zentrierblöcke 32 auf, die mittels eines Kettenantriebs 33 in Richtung der Pfeile 34 symmetrisch zur Mittelebene 18 verfahrbar sind. Mittels einer durch einen Pfeil 35 angedeuteten Hubvorrichtung ist ein Haltekopf 36 im Zentrierblock 32 höhenverstellbar. Der Haltekopf 36 ist gemäß Fig. 5 mit einer Vielzahl von Saugöffnungen 37 versehen, mit denen ein Stirndeckel 22 aus der in der Stellung 20c befindlichen Schublade entnommen werden kann, wie es durch Pfeile 38 in Fig. 4 angedeutet ist. Alsdann wird die Schublade über den gleichen Weg zurück in das Schubfach 17 transportiert. Eine Vielzahl von Stopfen 39 sind in einem Stopfenmagazin 40 angeordnet, mit welchem Stopfen in Richtung des Pfeils 41 zuführbar sind. Die Stopfen können mit Hilfe einer Stopfeneinschiebevorrichtung 42 in Richtung des Pfeiles 43 durch ein Loch 44 in dem Haltekopf 36 in Richtung auf die Mittelebene 18 geschoben werden. Nach dem der Haltekopf 36 bis in die Höhe der Achse der Rolle 1 abgesenkt und die beiden Zentrierblöcke 32 in Zentrierlage bis an die Stirnseiten der Rolle 1 herangefahren worden sind, wird die Einschiebevorrichtung 42 betätigt. Hierdurch werden zwei Stopfen 39 von entgegengesetzten Seiten her durch die Stirndeckel 22 in die Hülse 45 der Rolle 1 geschoben, wodurch die Stirndekkel an der Rolle 1 befestigt sind.The centering station has two centering blocks 32, which can be moved symmetrically to the central plane 18 in the direction of the arrows 34 by means of a chain drive 33. A holding head 36 in the centering block 32 can be adjusted in height by means of a lifting device indicated by an arrow 35. 5 is provided with a plurality of suction openings 37, by means of which a front cover 22 can be removed from the drawer in position 20c, as indicated by arrows 38 in FIG. 4. The drawer is then transported back into the drawer 17 in the same way. A plurality of plugs 39 are arranged in a plug magazine 40, with which plugs can be fed in the direction of arrow 41. The plugs can be pushed in the direction of arrow 43 through a hole 44 in the holding head 36 in the direction of the central plane 18 with the aid of a plug insertion device 42. After the holding head 36 has been lowered to the height of the axis of the roller 1 and the two centering blocks 32 have been moved in the centering position up to the end faces of the roller 1, the insertion device 42 is actuated. As a result, two plugs 39 are pushed from opposite sides through the end caps 22 into the sleeve 45 of the roller 1, whereby the end caps are attached to the roller 1.

Die rechts in den Figuren veranschaulichten Teile sind spiegelbildlich gleich. Man erkennt, daß in Durchlaufrichtung nicht mehr Platz benötigt wird, als es etwa dem Durchmesser des größten Stirndeckels 22 entspricht.The parts illustrated on the right in the figures are mirror images of the same. It can be seen that no more space is required in the direction of flow than corresponds approximately to the diameter of the largest end cover 22.

Mit Hilfe der in den Fig. 6 bis 9 beschriebenen Maßnahmen werden äußere Stirndeckel automatisch zugeführt. Die bieden Stirndeckelmagazine 12 besitzen wiederum ein Regal 46 mit einzelnen Fächern 47. Eine durch einen Pfeil 49 angedeutete Hubvorrichtung vermag das Regal bis in die gestrichelte Höhe anzuheben. In jedem Fach befindet sich eine Schublade 50. Jede Schublade enthält einen Stapel 51 mit äußeren Stirndeckeln 52. Eine Schubladen-Transportvorrichtung 53 weist Querführungen 54 auf. Ferner sind durch einen Pfeil 55 angedeutete Querförderer vorhanden, welche eine Schublade aus demjenigen Fach 47, das den Querführungen gegenüberliegt, in die Stellung 50a zu verlagern vermag. Ein Kippantrieb 56 schwenkt die Schublade um eine Kippachse 57 in Richtung des Pfeiles 58 in die Stellung 50b, wobei die offene Seite der Schublade diesmal der Mittelebene 18 zugewandt ist. Eine Übertragungsvorrichtung bildet einen Längsförderer 59. Sie weist ein Haltelement 60 auf, das in ähnlicher Weise wie der Haltekopf 36 mit Saugöffnungen versehen ist. Das Halteelement sitzt an einem Schwenkarm 61, der um eine horizontale Achse 62 schwenkbar ist. Die Achse ist in einem Block 63 gehalten, der an Stangen 64 in Richtung des Pfeiles 73 auf und ab bewegt werden kann. Das Halteelement nimmt durch Saugkraft einen Stirndeckel aus der in der Stellung 50b gehaltene Schublade heraus und transportiert diese in Richtung des Pfeiles 65 vor die Preßplatte 66 der Packpresse 13. Die Saugkraft des Halteelements 60 ist durch Pfeile 67 angedeutet.With the help of the measures described in FIGS. 6 to 9, outer end covers are automatically fed. The two end cover magazines 12 in turn have a shelf 46 with individual compartments 47. A lifting device indicated by an arrow 49 is able to raise the shelf up to the dashed height. There is a drawer 50 in each compartment. Each drawer contains a stack 51 with outer end covers 52. A drawer transport device 53 has transverse guides 54. Furthermore, there are cross conveyors indicated by an arrow 55, which are able to move a drawer from the compartment 47, which lies opposite the transverse guides, into position 50a. A tilt drive 56 pivots the drawer about a tilt axis 57 in the direction of arrow 58 into position 50b, this time the open side of the drawer facing the central plane 18. A transmission device forms a longitudinal conveyor 59. It has a holding element 60 which is provided with suction openings in a similar manner to the holding head 36. The holding element is seated on a pivot arm 61 which is pivotable about a horizontal axis 62. The axis is held in a block 63 which can be moved up and down on rods 64 in the direction of arrow 73. The holding element takes an end cover out of the drawer held in position 50b by suction and transports it in the direction of arrow 65 in front of the press plate 66 of the packing press 13. The suction force of the holding element 60 is indicated by arrows 67.

Gegebenenfalls kann das Halteelement 60 auch noch mit Hilfe eines Antriebs in Richtung des Pfeiles 68 bewegt werden.If necessary, the holding element 60 can also be moved in the direction of the arrow 68 with the aid of a drive.

Die Preßplatte 66 ist mit einer Vielzahl von Saugöffnungen 69 versehen, so daß diese Preßplatte als Haltekopf für die äußeren Stirndeckel dienen kann. Die Preßplatte sitzt an einem Block 70, der mittels eines Antriebs 71 längs der Bahn 72 verfahren werden kann. Auf diese Weise kann der von der Preßplatte 66 gehaltene Stirndeckel auf der Stirnseite der verpackten Rolle 1 aufgeklebt werden.The press plate 66 is provided with a plurality of suction openings 69 so that this press plate can serve as a holding head for the outer end cover. The press plate is seated on a block 70 which can be moved along the path 72 by means of a drive 71. In this way, the end cover held by the press plate 66 can be glued to the end face of the packaged roll 1.

Bei dieser Konstruktion stehen die Stirndekkelmagazine 12 verhältnismäßig dicht neben der Rollendurchlaufbahn. Trotzdem ist die Kippbewegung gemäß Pfeil 58 möglich, weil Zeitpunkte ausgenutzt werden können, in denen sich zwischen den Magazinen 12 keine Rolle befindet. Sowohl in der Stellung 50a als auch in der Stellung 50b wird der Rollendurchlauf nicht behindert.In this construction, the front cover magazines 12 are relatively close to the roller path. Nevertheless, the tilting movement according to arrow 58 is possible because times can be used in which there is no roll between the magazines 12. Both in position 50a and in position 50b, the roll run is not hindered.

Die verschiedenen Antriebe können hydraulisch, pneumatisch, elektrisch oder auf beliebige andere bekannte Weise ausgebildet sein. Die Hubsteuerung der Magazine 3 und 12 erfolgt in Abhängigkeit von einer vorherigen Messung des Rollendurchmessers. Dies gilt auch für die Steuerung der Hubbewegung des Haltekopfes 36 bzw. des Halteelements 60. Um ein Herausfallen der Stirndeckel 22 in den Schubladen-Steliungen 20b bzw. 50b zu verhindern, kann man eine leichte Neigung der Schubläden zur Vertikalen vorsehen. Es ist auch möglich, in den Schubladen Halter vorzusehen, welche den Rand des jeweils vordersten Stirndeckels so geringfügig übergreifen, daß der Stirndeckel bei den vorhandenen Trennkräften aus den Haltern herausgezogen werden kann.The various drives can be designed hydraulically, pneumatically, electrically or in any other known manner. The stroke control of magazines 3 and 12 takes place depending on a previous measurement of the roll diameter. This also applies to the control of the lifting movement of the holding head 36 or the holding element 60. In order to prevent the end cover 22 from falling out in the drawer positions 20b or 50b, the drawers can be slightly inclined to the vertical. It is also possible to provide holders in the drawers which overlap the edge of the foremost front cover so slightly that the front cover can be pulled out of the holders with the existing separating forces.

Claims (13)

1. Device for the packaging of rolls, with an automatic feed of end covers (22, 52) to be applied to the end faces of the rolls, wherein an end cover magazine (3, 12) has a plurality of storage spaces (20, 50) for receiving end covers of different size and, when desired, one of the storage spaces can be broutht into a working position (20b, 50b) in which one end cover (22) is taken of by means of a suction force (38, 67), and the end cover (22) is then transferred to the holder head (36, 66) of a device for fixing an end cover to the roll (1), characterised in that the storage spaces are formed by drawers (20, 50) arranged one above the other in compartments (17, 47) of a shelf (16, 46), and that a drawer-transport device (23, 53) is provided which takes one drawer from its compartment each time, tilts it into the at least approximately vertically arranged working position (20b, 50b) and, after one end cover (32, 52) has been taken off, moves it back again into the compartment.
2. Device according to claim 1, characterised in that two shelves (16, 46) with mutually facing compartments (17, 47) are arranged on either side of the roll passage track and that the drawers (20, 50) can be tilted into the vertical working position (20b, 50b) located between the respective shelf and the roll passage track.
3. Device according to claim 1 or 2, characterised in that the drawer-transport device (23, 53) has horizontal transverse guides (24, 54) arranged at a fixed height and the height of the shelf (16, 46) is adjustable in such a way that always one compartment (17, 47) is located on a prolongation of the transverse guides.
4. Device according to one of claims 1 to 3, charaterised in that the shelf (16, 46) is arranged with an offset relativ to the holder head (36, 66) in the direction of the roll passage and that a longitudinal conveyor (23a; 59) transports the end covers (52, 22) in the vertical position from the shelf to the holder head.
5. Device according to claim 4, characterised in that the longitudinal conveyor ist formed by a transfer device (59) with an upright holder element (60) which transports one end cover (52) each time.
6. Device according to claim 5, characterised in that the holder element (60) is mounted on an arm (61) pivotable about a horizontal axis (62).
7. Device according to claim 4, characterised in that the longitudinal conveyor (23a) is a part of the drawertransport device (23) and has longitudinal guides (27), with the aid of which one drawer (20) can be transported into the vertical position each time.
8. Device according to one of claims 1 to 7, characterised in that the height of the holder head (36) is adjustable.
9. Device according to claim 5, characterised in that the height of the holder element (60) of the longitudinal conveyor is adjustable.
10. Device according to one of claims 1 to 9, characterised in that the drawer-transport device (23) tilts the drawer (20) downwards about an axis (29) on the side remote from the shelf (16), and the holder head (36) takes the end cover (22) out of the drawer.
11. Device according to one of claims 5, 6 and 9, characterised in that the drawer-transport device (53) tilts the drawer (50) downwards about an axis (57) on the side facing the shelf (46), and the transfer device (59) takes the end cover (52) out of the drawer and transfers it to the baling press plate (66) acting as the holder head.
12. Device according to one of claims 1 to 11, characterised in that a device for fixing inner end covers (22) with a central hole to a roll (1) provided with the tube (45) has a holder head (36) which comprises a channel (44) which is connected to a plug magazine (40) and throug which holder plugs (39) can be pushed into the hole and tube by means of a pushing device (42).
13. Device according to claim 12, characterised in that the holder heads (36) are formed by the thrust faces of a roll-centring station (4).
EP82100025A 1981-01-13 1982-01-05 Device for packing rolls Expired EP0056237B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3100754 1981-01-13
DE3100754A DE3100754C2 (en) 1981-01-13 1981-01-13 Device for packing rolls

Publications (2)

Publication Number Publication Date
EP0056237A1 EP0056237A1 (en) 1982-07-21
EP0056237B1 true EP0056237B1 (en) 1984-07-18

Family

ID=6122500

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100025A Expired EP0056237B1 (en) 1981-01-13 1982-01-05 Device for packing rolls

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US (1) US4596108A (en)
EP (1) EP0056237B1 (en)
JP (1) JPS57142811A (en)
DE (1) DE3100754C2 (en)
FI (1) FI69799C (en)
NO (1) NO155614C (en)

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DE3803874A1 (en) * 1988-02-09 1989-08-24 Kleinewefers Gmbh FRONT LID STORAGE AND FEEDING ARRANGEMENT FOR A ROLL PACKING DEVICE
DE3835407A1 (en) * 1988-10-18 1990-04-19 Kleinewefers Gmbh LABELING DEVICE FOR APPLYING A LABEL TO AN OBJECT, IN PARTICULAR A LARGE LABEL ON A PAPER ROLL, AND METHOD FOR APPLYING THE LABEL
US5003753A (en) * 1989-12-15 1991-04-02 Haines & Emerson, Inc. Inside head inserting apparatus and method
DE4202916A1 (en) * 1992-02-01 1993-08-05 Kleinewefers Gmbh FRONT COVER AND DEVICE FOR APPLYING A FRONT COVER TO A REEL
US5596863A (en) * 1995-06-12 1997-01-28 Illinois Tool Works Inc. Method and apparatus for applying edge protectors
US5765340A (en) * 1996-06-25 1998-06-16 Valmet Corporation Method and apparatus for wrapping a roll
US7107739B1 (en) * 2004-12-07 2006-09-19 Five Brothers Properties, Ltd Cross-feed wrapping apparatus and process
FI117168B (en) * 2004-12-23 2006-07-14 Metso Paper Inc Method and arrangement for positioning end tags of rollers

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US2681534A (en) * 1951-04-23 1954-06-22 Powell River Company Ltd Roll wrapping apparatus
US2803935A (en) * 1956-07-19 1957-08-27 Gibson Cedric Marold Roll wrapping machine
DE1040446B (en) * 1956-12-11 1958-10-02 Hesser Ag Maschf Device for removing the bottom bag from a supply stack
DE1218334B (en) * 1963-09-11 1966-06-02 Kliklok Corp Device for removing the foremost shell of a stack of shells resting in a magazine with an axis inclined to the vertical
FR1380677A (en) * 1963-10-22 1964-12-04 Saint Gobain Device for closing the ends of wrapping rolls
US3393492A (en) * 1965-10-22 1968-07-23 Appleton Mach Roll header
FR1543520A (en) * 1966-09-19 Beloit Eastern Corp Glue application table
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US4178122A (en) * 1978-03-29 1979-12-11 Abrahamson Daniel P Method and apparatus for cubing brick
FI56803C (en) * 1978-11-03 1980-04-10 Waertsilae Oy Ab RULLPACKNINGSANORDNING
DE3025201A1 (en) * 1980-07-03 1982-01-28 Hoechst Ag, 6000 Frankfurt DEVICE FOR THE TRANSPORT AND POSITIONING OF PRINTING PLATES

Also Published As

Publication number Publication date
FI69799B (en) 1985-12-31
DE3100754C2 (en) 1986-08-28
EP0056237A1 (en) 1982-07-21
DE3100754A1 (en) 1982-07-29
FI69799C (en) 1987-08-25
NO155614B (en) 1987-01-19
NO155614C (en) 1987-04-29
NO820057L (en) 1982-07-14
JPS6144731B2 (en) 1986-10-04
JPS57142811A (en) 1982-09-03
FI820006L (en) 1982-07-14
US4596108A (en) 1986-06-24

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